diff --git a/Android.bp b/Android.bp
index 2520a71..4befb1b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -39,6 +39,11 @@
 cc_library_headers {
     name: "native_headers",
     host_supported: true,
+    target: {
+        windows: {
+            enabled: true,
+        },
+    },
     export_include_dirs: [
         "include/",
     ],
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 6576ffd..220fef6 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1559,6 +1559,13 @@
                CommandOptions::WithTimeout(90).Build(), SEC_TO_MSEC(10));
 
     printf("========================================================\n");
+    printf("== Networking Policy\n");
+    printf("========================================================\n");
+
+    RunDumpsys("DUMPSYS NETWORK POLICY", {"netpolicy"}, CommandOptions::WithTimeout(90).Build(),
+               SEC_TO_MSEC(10));
+
+    printf("========================================================\n");
     printf("== Dropbox crashes\n");
     printf("========================================================\n");
 
diff --git a/cmds/evemu-record/main.rs b/cmds/evemu-record/main.rs
index db3fd77..e91e5da 100644
--- a/cmds/evemu-record/main.rs
+++ b/cmds/evemu-record/main.rs
@@ -50,8 +50,10 @@
     /// The first event received from the device.
     FirstEvent,
 
-    /// The time when the system booted.
-    Boot,
+    /// The Unix epoch (00:00:00 UTC on 1st January 1970), so that all timestamps are Unix
+    /// timestamps. This makes the events in the recording easier to match up with those from other
+    /// log sources.
+    Epoch,
 }
 
 fn get_choice(max: u32) -> u32 {
@@ -188,7 +190,7 @@
         //
         // [0]: https://gitlab.freedesktop.org/libevdev/evemu/-/commit/eba96a4d2be7260b5843e65c4b99c8b06a1f4c9d
         TimestampBase::FirstEvent => event.time - TimeVal::new(0, 1),
-        TimestampBase::Boot => TimeVal::new(0, 0),
+        TimestampBase::Epoch => TimeVal::new(0, 0),
     };
     print_event(output, &event.offset_time_by(start_time))?;
     loop {
diff --git a/cmds/idlcli/Android.bp b/cmds/idlcli/Android.bp
index c18d3f5..50c2cd8 100644
--- a/cmds/idlcli/Android.bp
+++ b/cmds/idlcli/Android.bp
@@ -24,7 +24,7 @@
 cc_defaults {
     name: "idlcli-defaults",
     shared_libs: [
-        "android.hardware.vibrator-V2-ndk",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/cmds/idlcli/vibrator.h b/cmds/idlcli/vibrator.h
index e100eac..b943495 100644
--- a/cmds/idlcli/vibrator.h
+++ b/cmds/idlcli/vibrator.h
@@ -49,7 +49,7 @@
 template <typename I>
 inline auto getService(std::string name) {
     const auto instance = std::string() + I::descriptor + "/" + name;
-    auto vibBinder = ndk::SpAIBinder(AServiceManager_getService(instance.c_str()));
+    auto vibBinder = ndk::SpAIBinder(AServiceManager_checkService(instance.c_str()));
     return I::fromBinder(vibBinder);
 }
 
diff --git a/data/etc/input/motion_predictor_config.xml b/data/etc/input/motion_predictor_config.xml
index c3f2fed..f593eda 100644
--- a/data/etc/input/motion_predictor_config.xml
+++ b/data/etc/input/motion_predictor_config.xml
@@ -35,7 +35,11 @@
 
     The jerk thresholds are based on normalized dt = 1 calculations.
   -->
-  <low-jerk>1.0</low-jerk>
-  <high-jerk>1.1</high-jerk>
+  <low-jerk>1.5</low-jerk>
+  <high-jerk>2.0</high-jerk>
+
+  <!-- The alpha in the first-order IIR filter for jerk smoothing. An alpha
+       of 1 results in no smoothing.-->
+  <jerk-alpha>0.25</jerk-alpha>
 </motion-predictor>
 
diff --git a/include/android/performance_hint.h b/include/android/performance_hint.h
index 8736695..3f32a5a 100644
--- a/include/android/performance_hint.h
+++ b/include/android/performance_hint.h
@@ -85,7 +85,6 @@
 
 /**
  * An opaque type representing a handle to a performance hint manager.
- * It must be released after use.
  *
  * To use:<ul>
  *    <li>Obtain the performance hint manager instance by calling
diff --git a/include/android/surface_control_input_receiver.h b/include/android/surface_control_input_receiver.h
index bdc5249..f0503f6 100644
--- a/include/android/surface_control_input_receiver.h
+++ b/include/android/surface_control_input_receiver.h
@@ -59,17 +59,13 @@
                                           AInputEvent *_Nonnull keyEvent)
                                           __INTRODUCED_IN(__ANDROID_API_V__);
 
-struct AInputReceiverCallbacks;
-
-struct AInputReceiver;
+typedef struct AInputReceiverCallbacks AInputReceiverCallbacks;
 
 /**
  * The InputReceiver that holds the reference to the registered input channel. This must be released
  * using AInputReceiver_release
- *
- * Available since API level 35.
  */
-typedef struct AInputReceiver AInputReceiver __INTRODUCED_IN(__ANDROID_API_V__);
+typedef struct AInputReceiver AInputReceiver;
 
 /**
  * Registers an input receiver for an ASurfaceControl that will receive batched input event. For
diff --git a/include/ftl/fake_guard.h b/include/ftl/fake_guard.h
index e601251..0bf2870 100644
--- a/include/ftl/fake_guard.h
+++ b/include/ftl/fake_guard.h
@@ -76,12 +76,8 @@
   FTL_ATTRIBUTE(release_capability(mutex))
 #endif
 
-// The parentheses around `expr` are needed to deduce an lvalue or rvalue reference.
-#define FTL_FAKE_GUARD2(mutex, expr)            \
-  [&]() -> decltype(auto) {                     \
-    const android::ftl::FakeGuard guard(mutex); \
-    return (expr);                              \
-  }()
+#define FTL_FAKE_GUARD2(mutex, expr) \
+    (android::ftl::FakeGuard(mutex), expr)
 
 #define FTL_MAKE_FAKE_GUARD(arg1, arg2, guard, ...) guard
 
diff --git a/include/input/Input.h b/include/input/Input.h
index ec08cdd..1a3cb6a 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -25,6 +25,7 @@
 #include <android/input.h>
 #ifdef __linux__
 #include <android/os/IInputConstants.h>
+#include <android/os/MotionEventFlag.h>
 #endif
 #include <android/os/PointerIconType.h>
 #include <math.h>
@@ -69,15 +70,17 @@
      * actual intent.
      */
     AMOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED =
-            android::os::IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED,
+            static_cast<int32_t>(android::os::MotionEventFlag::WINDOW_IS_PARTIALLY_OBSCURED),
+
     AMOTION_EVENT_FLAG_HOVER_EXIT_PENDING =
-            android::os::IInputConstants::MOTION_EVENT_FLAG_HOVER_EXIT_PENDING,
+            static_cast<int32_t>(android::os::MotionEventFlag::HOVER_EXIT_PENDING),
+
     /**
      * This flag indicates that the event has been generated by a gesture generator. It
      * provides a hint to the GestureDetector to not apply any touch slop.
      */
     AMOTION_EVENT_FLAG_IS_GENERATED_GESTURE =
-            android::os::IInputConstants::MOTION_EVENT_FLAG_IS_GENERATED_GESTURE,
+            static_cast<int32_t>(android::os::MotionEventFlag::IS_GENERATED_GESTURE),
 
     /**
      * This flag indicates that the event will not cause a focus change if it is directed to an
@@ -86,27 +89,27 @@
      * into focus.
      */
     AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE =
-            android::os::IInputConstants::MOTION_EVENT_FLAG_NO_FOCUS_CHANGE,
+            static_cast<int32_t>(android::os::MotionEventFlag::NO_FOCUS_CHANGE),
 
     /**
      * This event was generated or modified by accessibility service.
      */
     AMOTION_EVENT_FLAG_IS_ACCESSIBILITY_EVENT =
-            android::os::IInputConstants::INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT,
+            static_cast<int32_t>(android::os::MotionEventFlag::IS_ACCESSIBILITY_EVENT),
 
     AMOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS =
-            android::os::IInputConstants::MOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS,
+            static_cast<int32_t>(android::os::MotionEventFlag::TARGET_ACCESSIBILITY_FOCUS),
 
     /* Motion event is inconsistent with previously sent motion events. */
-    AMOTION_EVENT_FLAG_TAINTED = android::os::IInputConstants::INPUT_EVENT_FLAG_TAINTED,
+    AMOTION_EVENT_FLAG_TAINTED = static_cast<int32_t>(android::os::MotionEventFlag::TAINTED),
 
     /** Private flag, not used in Java. */
     AMOTION_EVENT_PRIVATE_FLAG_SUPPORTS_ORIENTATION =
-            android::os::IInputConstants::MOTION_EVENT_PRIVATE_FLAG_SUPPORTS_ORIENTATION,
+            static_cast<int32_t>(android::os::MotionEventFlag::PRIVATE_FLAG_SUPPORTS_ORIENTATION),
 
     /** Private flag, not used in Java. */
-    AMOTION_EVENT_PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION = android::os::IInputConstants::
-            MOTION_EVENT_PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION,
+    AMOTION_EVENT_PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION = static_cast<int32_t>(
+            android::os::MotionEventFlag::PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION),
 
     /** Mask for all private flags that are not used in Java. */
     AMOTION_EVENT_PRIVATE_FLAG_MASK = AMOTION_EVENT_PRIVATE_FLAG_SUPPORTS_ORIENTATION |
@@ -193,6 +196,13 @@
 #define MAX_POINTER_ID 31
 
 /*
+ * Number of high resolution scroll units for one detent (scroll wheel click), as defined in
+ * evdev. This is relevant when an input device is emitting REL_WHEEL_HI_RES or REL_HWHEEL_HI_RES
+ * events.
+ */
+constexpr int32_t kEvdevHighResScrollUnitsPerDetent = 120;
+
+/*
  * Declare a concrete type for the NDK's input event forward declaration.
  */
 struct AInputEvent {
@@ -890,9 +900,7 @@
     void splitFrom(const MotionEvent& other, std::bitset<MAX_POINTER_ID + 1> splitPointerIds,
                    int32_t newEventId);
 
-    void addSample(
-            nsecs_t eventTime,
-            const PointerCoords* pointerCoords);
+    void addSample(nsecs_t eventTime, const PointerCoords* pointerCoords, int32_t eventId);
 
     void offsetLocation(float xOffset, float yOffset);
 
diff --git a/include/input/InputConsumerNoResampling.h b/include/input/InputConsumerNoResampling.h
index 9e48b08..65c2914 100644
--- a/include/input/InputConsumerNoResampling.h
+++ b/include/input/InputConsumerNoResampling.h
@@ -16,15 +16,16 @@
 
 #pragma once
 
+#include <input/InputTransport.h>
+#include <input/Resampler.h>
 #include <utils/Looper.h>
-#include "InputTransport.h"
 
 namespace android {
 
 /**
  * An interface to receive batched input events. Even if you don't want batching, you still have to
  * use this interface, and some of the events will be batched if your implementation is slow to
- * handle the incoming input.
+ * handle the incoming input. The events received by these callbacks are never null.
  */
 class InputConsumerCallbacks {
 public:
@@ -47,13 +48,13 @@
 /**
  * Consumes input events from an input channel.
  *
- * This is a re-implementation of InputConsumer that does not have resampling at the current moment.
- * A lot of the higher-level logic has been folded into this class, to make it easier to use.
- * In the legacy class, InputConsumer, the consumption logic was partially handled in the jni layer,
- * as well as various actions like adding the fd to the Choreographer.
+ * This is a re-implementation of InputConsumer. At the moment it only supports resampling for
+ * single pointer events. A lot of the higher-level logic has been folded into this class, to make
+ * it easier to use. In the legacy class, InputConsumer, the consumption logic was partially handled
+ * in the jni layer, as well as various actions like adding the fd to the Choreographer.
  *
  * TODO(b/297226446): use this instead of "InputConsumer":
- * - Add resampling to this class
+ * - Add resampling for multiple pointer events.
  * - Allow various resampling strategies to be specified
  * - Delete the old "InputConsumer" and use this class instead, renaming it to "InputConsumer".
  * - Add tracing
@@ -64,8 +65,18 @@
  */
 class InputConsumerNoResampling final {
 public:
+    /**
+     * @param callbacks are used to interact with InputConsumerNoResampling. They're called whenever
+     * the event is ready to consume.
+     * @param looper needs to be sp and not shared_ptr because it inherits from
+     * RefBase
+     * @param resampler the resampling strategy to use. If null, no resampling will be
+     * performed.
+     */
     explicit InputConsumerNoResampling(const std::shared_ptr<InputChannel>& channel,
-                                       sp<Looper> looper, InputConsumerCallbacks& callbacks);
+                                       sp<Looper> looper, InputConsumerCallbacks& callbacks,
+                                       std::unique_ptr<Resampler> resampler);
+
     ~InputConsumerNoResampling();
 
     /**
@@ -99,6 +110,7 @@
     std::shared_ptr<InputChannel> mChannel;
     sp<Looper> mLooper;
     InputConsumerCallbacks& mCallbacks;
+    std::unique_ptr<Resampler> mResampler;
 
     // Looper-related infrastructure
     /**
@@ -182,6 +194,16 @@
      */
     std::map<DeviceId, std::queue<InputMessage>> mBatches;
     /**
+     * Creates a MotionEvent by consuming samples from the provided queue. If one message has
+     * eventTime > frameTime, all subsequent messages in the queue will be skipped. It is assumed
+     * that messages are queued in chronological order. In other words, only events that occurred
+     * prior to the requested frameTime will be consumed.
+     * @param frameTime the time up to which to consume events
+     * @param messages the queue of messages to consume from
+     */
+    std::pair<std::unique_ptr<MotionEvent>, std::optional<uint32_t>> createBatchedMotionEvent(
+            const nsecs_t frameTime, std::queue<InputMessage>& messages);
+    /**
      * A map from a single sequence number to several sequence numbers. This is needed because of
      * batching. When batching is enabled, a single MotionEvent will contain several samples. Each
      * sample came from an individual InputMessage of Type::Motion, and therefore will have to be
diff --git a/include/input/InputEventBuilders.h b/include/input/InputEventBuilders.h
index 25d35e9..55e0583 100644
--- a/include/input/InputEventBuilders.h
+++ b/include/input/InputEventBuilders.h
@@ -127,7 +127,7 @@
         return *this;
     }
 
-    MotionEvent build() {
+    MotionEvent build() const {
         std::vector<PointerProperties> pointerProperties;
         std::vector<PointerCoords> pointerCoords;
         for (const PointerBuilder& pointer : mPointers) {
@@ -135,20 +135,22 @@
             pointerCoords.push_back(pointer.buildCoords());
         }
 
+        auto [xCursorPosition, yCursorPosition] =
+                std::make_pair(mRawXCursorPosition, mRawYCursorPosition);
         // Set mouse cursor position for the most common cases to avoid boilerplate.
         if (mSource == AINPUT_SOURCE_MOUSE &&
-            !MotionEvent::isValidCursorPosition(mRawXCursorPosition, mRawYCursorPosition)) {
-            mRawXCursorPosition = pointerCoords[0].getX();
-            mRawYCursorPosition = pointerCoords[0].getY();
+            !MotionEvent::isValidCursorPosition(xCursorPosition, yCursorPosition)) {
+            xCursorPosition = pointerCoords[0].getX();
+            yCursorPosition = pointerCoords[0].getY();
         }
 
         MotionEvent event;
         event.initialize(InputEvent::nextId(), mDeviceId, mSource, mDisplayId, INVALID_HMAC,
                          mAction, mActionButton, mFlags, /*edgeFlags=*/0, AMETA_NONE, mButtonState,
                          MotionClassification::NONE, mTransform,
-                         /*xPrecision=*/0, /*yPrecision=*/0, mRawXCursorPosition,
-                         mRawYCursorPosition, mRawTransform, mDownTime, mEventTime,
-                         mPointers.size(), pointerProperties.data(), pointerCoords.data());
+                         /*xPrecision=*/0, /*yPrecision=*/0, xCursorPosition, yCursorPosition,
+                         mRawTransform, mDownTime, mEventTime, mPointers.size(),
+                         pointerProperties.data(), pointerCoords.data());
         return event;
     }
 
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index 6548810..7d11f76 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -275,7 +275,7 @@
      * Return DEAD_OBJECT if the channel's peer has been closed.
      * Other errors probably indicate that the channel is broken.
      */
-    status_t receiveMessage(InputMessage* msg);
+    android::base::Result<InputMessage> receiveMessage();
 
     /* Tells whether there is a message in the channel available to be received.
      *
@@ -363,7 +363,8 @@
      * Returns OK on success.
      * Returns WOULD_BLOCK if the channel is full.
      * Returns DEAD_OBJECT if the channel's peer has been closed.
-     * Returns BAD_VALUE if seq is 0 or if pointerCount is less than 1 or greater than MAX_POINTERS.
+     * Returns BAD_VALUE if seq is 0 or if pointerCount is less than 1 or greater than MAX_POINTERS,
+     * or if the verifier is enabled and the event failed verification upon publishing.
      * Other errors probably indicate that the channel is broken.
      */
     status_t publishMotionEvent(uint32_t seq, int32_t eventId, int32_t deviceId, int32_t source,
diff --git a/include/input/MotionPredictor.h b/include/input/MotionPredictor.h
index f715039..200c301 100644
--- a/include/input/MotionPredictor.h
+++ b/include/input/MotionPredictor.h
@@ -43,7 +43,9 @@
 class JerkTracker {
 public:
     // Initialize the tracker. If normalizedDt is true, assume that each sample pushed has dt=1.
-    JerkTracker(bool normalizedDt);
+    // alpha is the coefficient of the first-order IIR filter for jerk. A factor of 1 results
+    // in no smoothing.
+    JerkTracker(bool normalizedDt, float alpha);
 
     // Add a position to the tracker and update derivative estimates.
     void pushSample(int64_t timestamp, float xPos, float yPos);
@@ -58,10 +60,13 @@
 
 private:
     const bool mNormalizedDt;
+    // Coefficient of first-order IIR filter to smooth jerk calculation.
+    const float mAlpha;
 
     RingBuffer<int64_t> mTimestamps{4};
     std::array<float, 4> mXDerivatives{}; // [x, x', x'', x''']
     std::array<float, 4> mYDerivatives{}; // [y, y', y'', y''']
+    float mJerkMagnitude;
 };
 
 /**
@@ -124,15 +129,17 @@
 
     std::unique_ptr<TfLiteMotionPredictorBuffers> mBuffers;
     std::optional<MotionEvent> mLastEvent;
-    // mJerkTracker assumes normalized dt = 1 between recorded samples because
-    // the underlying mModel input also assumes fixed-interval samples.
-    // Normalized dt as 1 is also used to correspond with the similar Jank
-    // implementation from the JetPack MotionPredictor implementation.
-    JerkTracker mJerkTracker{true};
 
-    std::optional<MotionPredictorMetricsManager> mMetricsManager;
+    std::unique_ptr<JerkTracker> mJerkTracker;
+
+    std::unique_ptr<MotionPredictorMetricsManager> mMetricsManager;
 
     const ReportAtomFunction mReportAtomFunction;
+
+    // Initialize prediction model and associated objects.
+    // Called during lazy initialization.
+    // TODO: b/210158587 Consider removing lazy initialization.
+    void initializeObjects();
 };
 
 } // namespace android
diff --git a/include/input/Resampler.h b/include/input/Resampler.h
new file mode 100644
index 0000000..ff9c4b0
--- /dev/null
+++ b/include/input/Resampler.h
@@ -0,0 +1,115 @@
+/**
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <optional>
+
+#include <input/Input.h>
+#include <input/InputTransport.h>
+#include <input/RingBuffer.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+/**
+ * Resampler is an interface for resampling MotionEvents. Every resampling implementation
+ * must use this interface to enable resampling inside InputConsumer's logic.
+ */
+struct Resampler {
+    virtual ~Resampler() = default;
+
+    /**
+     * Tries to resample motionEvent at resampleTime. The provided resampleTime must be greater than
+     * the latest sample time of motionEvent. It is not guaranteed that resampling occurs at
+     * resampleTime. Interpolation may occur is futureSample is available. Otherwise, motionEvent
+     * may be resampled by another method, or not resampled at all. Furthermore, it is the
+     * implementer's responsibility to guarantee the following:
+     * - If resampling occurs, a single additional sample should be added to motionEvent. That is,
+     * if motionEvent had N samples before being passed to Resampler, then it will have N + 1
+     * samples by the end of the resampling. No other field of motionEvent should be modified.
+     * - If resampling does not occur, then motionEvent must not be modified in any way.
+     */
+    virtual void resampleMotionEvent(const std::chrono::nanoseconds resampleTime,
+                                     MotionEvent& motionEvent,
+                                     const InputMessage* futureSample) = 0;
+};
+
+class LegacyResampler final : public Resampler {
+public:
+    /**
+     * Tries to resample `motionEvent` at `resampleTime` by adding a resampled sample at the end of
+     * `motionEvent` with eventTime equal to `resampleTime` and pointer coordinates determined by
+     * linear interpolation or linear extrapolation. An earlier `resampleTime` will be used if
+     * extrapolation takes place and `resampleTime` is too far in the future. If `futureSample` is
+     * not null, interpolation will occur. If `futureSample` is null and there is enough historical
+     * data, LegacyResampler will extrapolate. Otherwise, no resampling takes place and
+     * `motionEvent` is unmodified.
+     */
+    void resampleMotionEvent(const std::chrono::nanoseconds resampleTime, MotionEvent& motionEvent,
+                             const InputMessage* futureSample) override;
+
+private:
+    struct Pointer {
+        PointerProperties properties;
+        PointerCoords coords;
+    };
+
+    struct Sample {
+        std::chrono::nanoseconds eventTime;
+        Pointer pointer;
+
+        Sample(const std::chrono::nanoseconds eventTime, const PointerProperties& properties,
+               const PointerCoords& coords)
+              : eventTime{eventTime}, pointer{properties, coords} {}
+    };
+
+    /**
+     * Keeps track of the previous MotionEvent deviceId to enable comparison between the previous
+     * and the current deviceId.
+     */
+    std::optional<DeviceId> mPreviousDeviceId;
+
+    /**
+     * Up to two latest samples from MotionEvent. Updated every time resampleMotionEvent is called.
+     * Note: We store up to two samples in order to simplify the implementation. Although,
+     * calculations are possible with only one previous sample.
+     */
+    RingBuffer<Sample> mLatestSamples{/*capacity=*/2};
+
+    /**
+     * Adds up to mLatestSamples.capacity() of motionEvent's latest samples to mLatestSamples. (If
+     * motionEvent has fewer samples than mLatestSamples.capacity(), then the available samples are
+     * added to mLatestSamples.)
+     */
+    void updateLatestSamples(const MotionEvent& motionEvent);
+
+    /**
+     * May add a sample at the end of motionEvent with eventTime equal to resampleTime, and
+     * interpolated coordinates between the latest motionEvent sample and futureSample.
+     */
+    void interpolate(const std::chrono::nanoseconds resampleTime, MotionEvent& motionEvent,
+                     const InputMessage& futureSample) const;
+
+    /**
+     * May add a sample at the end of motionEvent by extrapolating from the latest two samples. The
+     * added sample either has eventTime equal to resampleTime, or an earlier time if resampleTime
+     * is too far in the future.
+     */
+    void extrapolate(const std::chrono::nanoseconds resampleTime, MotionEvent& motionEvent) const;
+};
+} // namespace android
\ No newline at end of file
diff --git a/include/input/TfLiteMotionPredictor.h b/include/input/TfLiteMotionPredictor.h
index 728a8e1..49e909e 100644
--- a/include/input/TfLiteMotionPredictor.h
+++ b/include/input/TfLiteMotionPredictor.h
@@ -110,6 +110,9 @@
         // High jerk means more predictions will be pruned, vice versa for low.
         float lowJerk = 0;
         float highJerk = 0;
+
+        // Coefficient for the first-order IIR filter for jerk calculation.
+        float jerkAlpha = 1;
     };
 
     // Creates a model from an encoded Flatbuffer model.
diff --git a/include/input/VirtualInputDevice.h b/include/input/VirtualInputDevice.h
index 222dac8..b6c6305 100644
--- a/include/input/VirtualInputDevice.h
+++ b/include/input/VirtualInputDevice.h
@@ -17,14 +17,30 @@
 #pragma once
 
 #include <android-base/unique_fd.h>
+#include <input/Input.h>
+#include <map>
 
 namespace android {
 
+enum class DeviceType {
+    KEYBOARD,
+    MOUSE,
+    TOUCHSCREEN,
+    DPAD,
+    STYLUS,
+    ROTARY_ENCODER,
+};
+
+android::base::unique_fd openUinput(const char* readableName, int32_t vendorId, int32_t productId,
+                                    const char* phys, DeviceType deviceType, int32_t screenHeight,
+                                    int32_t screenWidth);
+
 enum class UinputAction {
     RELEASE = 0,
     PRESS = 1,
     MOVE = 2,
     CANCEL = 3,
+    ftl_last = CANCEL,
 };
 
 class VirtualInputDevice {
@@ -77,6 +93,8 @@
 
 private:
     static const std::map<int, int> BUTTON_CODE_MAPPING;
+    int32_t mAccumulatedHighResScrollX;
+    int32_t mAccumulatedHighResScrollY;
 };
 
 class VirtualTouchscreen : public VirtualInputDevice {
@@ -122,4 +140,14 @@
     bool handleStylusUp(uint16_t tool, std::chrono::nanoseconds eventTime);
 };
 
+class VirtualRotaryEncoder : public VirtualInputDevice {
+public:
+    VirtualRotaryEncoder(android::base::unique_fd fd);
+    virtual ~VirtualRotaryEncoder() override;
+    bool writeScrollEvent(float scrollAmount, std::chrono::nanoseconds eventTime);
+
+private:
+    int32_t mAccumulatedHighResScrollAmount;
+};
+
 } // namespace android
diff --git a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
index 23f583b..7f45581 100644
--- a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
+++ b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
@@ -125,6 +125,11 @@
         VULKAN_DEVICE_EXTENSION = 9,
     };
 
+    enum GLTelemetryHints {
+        NO_HINT = 0,
+        SKIP_TELEMETRY = 1,
+    };
+
     GpuStatsInfo() = default;
     GpuStatsInfo(const GpuStatsInfo&) = default;
     virtual ~GpuStatsInfo() = default;
diff --git a/libs/gui/Android.bp b/libs/gui/Android.bp
index 51d2e53..1243b21 100644
--- a/libs/gui/Android.bp
+++ b/libs/gui/Android.bp
@@ -255,6 +255,7 @@
         "BitTube.cpp",
         "BLASTBufferQueue.cpp",
         "BufferItemConsumer.cpp",
+        "BufferReleaseChannel.cpp",
         "Choreographer.cpp",
         "CompositorTiming.cpp",
         "ConsumerBase.cpp",
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 739c3c2..cda4985 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -20,6 +20,7 @@
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 //#define LOG_NDEBUG 0
 
+#include <com_android_graphics_libgui_flags.h>
 #include <cutils/atomic.h>
 #include <gui/BLASTBufferQueue.h>
 #include <gui/BufferItemConsumer.h>
@@ -39,7 +40,6 @@
 #include <private/gui/ComposerServiceAIDL.h>
 
 #include <android-base/thread_annotations.h>
-#include <chrono>
 
 #include <com_android_graphics_libgui_flags.h>
 
@@ -175,16 +175,21 @@
         mSyncTransaction(nullptr),
         mUpdateDestinationFrame(updateDestinationFrame) {
     createBufferQueue(&mProducer, &mConsumer);
-    // since the adapter is in the client process, set dequeue timeout
-    // explicitly so that dequeueBuffer will block
-    mProducer->setDequeueTimeout(std::numeric_limits<int64_t>::max());
-
-    // safe default, most producers are expected to override this
-    mProducer->setMaxDequeuedBufferCount(2);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    mBufferItemConsumer = new BLASTBufferItemConsumer(mProducer, mConsumer,
+                                                      GraphicBuffer::USAGE_HW_COMPOSER |
+                                                              GraphicBuffer::USAGE_HW_TEXTURE,
+                                                      1, false, this);
+#else
     mBufferItemConsumer = new BLASTBufferItemConsumer(mConsumer,
                                                       GraphicBuffer::USAGE_HW_COMPOSER |
                                                               GraphicBuffer::USAGE_HW_TEXTURE,
                                                       1, false, this);
+#endif //  COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    // since the adapter is in the client process, set dequeue timeout
+    // explicitly so that dequeueBuffer will block
+    mProducer->setDequeueTimeout(std::numeric_limits<int64_t>::max());
+
     static std::atomic<uint32_t> nextId = 0;
     mProducerId = nextId++;
     mName = name + "#" + std::to_string(mProducerId);
@@ -236,6 +241,11 @@
     }
 }
 
+void BLASTBufferQueue::onFirstRef() {
+    // safe default, most producers are expected to override this
+    mProducer->setMaxDequeuedBufferCount(2);
+}
+
 void BLASTBufferQueue::update(const sp<SurfaceControl>& surface, uint32_t width, uint32_t height,
                               int32_t format) {
     LOG_ALWAYS_FATAL_IF(surface == nullptr, "BLASTBufferQueue: mSurfaceControl must not be NULL");
@@ -499,7 +509,13 @@
                  callbackId.to_string().c_str());
         return;
     }
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    if (!it->second.mIsStale) {
+        mNumAcquired--;
+    }
+#else
     mNumAcquired--;
+#endif
     BBQ_TRACE("frame=%" PRIu64, callbackId.framenumber);
     BQA_LOGV("released %s", callbackId.to_string().c_str());
     mBufferItemConsumer->releaseBuffer(it->second, releaseFence);
@@ -761,6 +777,9 @@
         }
 
         // add to shadow queue
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+        mNumDequeued--;
+#endif
         mNumFrameAvailable++;
         if (waitForTransactionCallback && mNumFrameAvailable >= 2) {
             acquireAndReleaseBuffer();
@@ -815,9 +834,18 @@
 };
 
 void BLASTBufferQueue::onFrameCancelled(const uint64_t bufferId) {
-    std::lock_guard _lock{mTimestampMutex};
-    mDequeueTimestamps.erase(bufferId);
-};
+    {
+        std::lock_guard _lock{mTimestampMutex};
+        mDequeueTimestamps.erase(bufferId);
+    }
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    {
+        std::lock_guard lock{mMutex};
+        mNumDequeued--;
+    }
+#endif
+}
 
 bool BLASTBufferQueue::syncNextTransaction(
         std::function<void(SurfaceComposerClient::Transaction*)> callback,
@@ -1116,30 +1144,143 @@
                                             producerControlledByApp, output);
     }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    status_t disconnect(int api, DisconnectMode mode) override {
+        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
+        if (!bbq) {
+            return BufferQueueProducer::disconnect(api, mode);
+        }
+
+        std::lock_guard lock{bbq->mMutex};
+        if (status_t status = BufferQueueProducer::disconnect(api, mode); status != OK) {
+            return status;
+        }
+
+        bbq->mNumDequeued = 0;
+        bbq->mNumAcquired = 0;
+        for (auto& [releaseId, bufferItem] : bbq->mSubmitted) {
+            bufferItem.mIsStale = true;
+        }
+
+        return OK;
+    }
+
+    status_t setAsyncMode(bool asyncMode) override {
+        if (status_t status = BufferQueueProducer::setAsyncMode(asyncMode); status != OK) {
+            return status;
+        }
+
+        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
+        if (!bbq) {
+            return OK;
+        }
+
+        {
+            std::lock_guard lock{bbq->mMutex};
+            bbq->mAsyncMode = asyncMode;
+        }
+
+        return OK;
+    }
+
+    status_t setSharedBufferMode(bool sharedBufferMode) override {
+        if (status_t status = BufferQueueProducer::setSharedBufferMode(sharedBufferMode);
+            status != OK) {
+            return status;
+        }
+
+        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
+        if (!bbq) {
+            return OK;
+        }
+
+        {
+            std::lock_guard lock{bbq->mMutex};
+            bbq->mSharedBufferMode = sharedBufferMode;
+        }
+
+        return OK;
+    }
+
+    status_t detachBuffer(int slot) override {
+        if (status_t status = BufferQueueProducer::detachBuffer(slot); status != OK) {
+            return status;
+        }
+
+        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
+        if (!bbq) {
+            return OK;
+        }
+
+        {
+            std::lock_guard lock{bbq->mMutex};
+            bbq->mNumDequeued--;
+        }
+
+        return OK;
+    }
+
+    status_t dequeueBuffer(int* outSlot, sp<Fence>* outFence, uint32_t width, uint32_t height,
+                           PixelFormat format, uint64_t usage, uint64_t* outBufferAge,
+                           FrameEventHistoryDelta* outTimestamps) override {
+        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
+        if (!bbq) {
+            return BufferQueueProducer::dequeueBuffer(outSlot, outFence, width, height, format,
+                                                      usage, outBufferAge, outTimestamps);
+        }
+
+        {
+            std::lock_guard lock{bbq->mMutex};
+            bbq->mNumDequeued++;
+        }
+
+        status_t status =
+                BufferQueueProducer::dequeueBuffer(outSlot, outFence, width, height, format, usage,
+                                                   outBufferAge, outTimestamps);
+        if (status < 0) {
+            std::lock_guard lock{bbq->mMutex};
+            bbq->mNumDequeued--;
+        }
+        return status;
+    }
+#endif
+
     // We want to resize the frame history when changing the size of the buffer queue
     status_t setMaxDequeuedBufferCount(int maxDequeuedBufferCount) override {
         int maxBufferCount;
-        status_t status = BufferQueueProducer::setMaxDequeuedBufferCount(maxDequeuedBufferCount,
-                                                                         &maxBufferCount);
-        // if we can't determine the max buffer count, then just skip growing the history size
-        if (status == OK) {
-            size_t newFrameHistorySize = maxBufferCount + 2; // +2 because triple buffer rendering
-            // optimize away resizing the frame history unless it will grow
-            if (newFrameHistorySize > FrameEventHistory::INITIAL_MAX_FRAME_HISTORY) {
-                sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
-                if (bbq != nullptr) {
-                    ALOGV("increasing frame history size to %zu", newFrameHistorySize);
-                    bbq->resizeFrameEventHistory(newFrameHistorySize);
-                }
-            }
+        if (status_t status = BufferQueueProducer::setMaxDequeuedBufferCount(maxDequeuedBufferCount,
+                                                                             &maxBufferCount);
+            status != OK) {
+            return status;
         }
-        return status;
+
+        sp<BLASTBufferQueue> bbq = mBLASTBufferQueue.promote();
+        if (!bbq) {
+            return OK;
+        }
+
+        // if we can't determine the max buffer count, then just skip growing the history size
+        size_t newFrameHistorySize = maxBufferCount + 2; // +2 because triple buffer rendering
+        // optimize away resizing the frame history unless it will grow
+        if (newFrameHistorySize > FrameEventHistory::INITIAL_MAX_FRAME_HISTORY) {
+            ALOGV("increasing frame history size to %zu", newFrameHistorySize);
+            bbq->resizeFrameEventHistory(newFrameHistorySize);
+        }
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+        {
+            std::lock_guard lock{bbq->mMutex};
+            bbq->mMaxDequeuedBuffers = maxDequeuedBufferCount;
+        }
+#endif
+
+        return OK;
     }
 
     int query(int what, int* value) override {
         if (what == NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER) {
             *value = 1;
-            return NO_ERROR;
+            return OK;
         }
         return BufferQueueProducer::query(what, value);
     }
diff --git a/libs/gui/BufferItemConsumer.cpp b/libs/gui/BufferItemConsumer.cpp
index e6331e7..bfe3d6e 100644
--- a/libs/gui/BufferItemConsumer.cpp
+++ b/libs/gui/BufferItemConsumer.cpp
@@ -21,8 +21,11 @@
 
 #include <inttypes.h>
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
+#include <ui/BufferQueueDefs.h>
+#include <ui/GraphicBuffer.h>
 
 #define BI_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
 // #define BI_LOGD(x, ...) ALOGD("[%s] " x, mName.c_str(), ##__VA_ARGS__)
@@ -32,18 +35,37 @@
 
 namespace android {
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+BufferItemConsumer::BufferItemConsumer(uint64_t consumerUsage, int bufferCount,
+                                       bool controlledByApp, bool isConsumerSurfaceFlinger)
+      : ConsumerBase(controlledByApp, isConsumerSurfaceFlinger) {
+    initialize(consumerUsage, bufferCount);
+}
+
+BufferItemConsumer::BufferItemConsumer(const sp<IGraphicBufferProducer>& producer,
+                                       const sp<IGraphicBufferConsumer>& consumer,
+                                       uint64_t consumerUsage, int bufferCount,
+                                       bool controlledByApp)
+      : ConsumerBase(producer, consumer, controlledByApp) {
+    initialize(consumerUsage, bufferCount);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 BufferItemConsumer::BufferItemConsumer(
         const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
         int bufferCount, bool controlledByApp) :
     ConsumerBase(consumer, controlledByApp)
 {
+    initialize(consumerUsage, bufferCount);
+}
+
+void BufferItemConsumer::initialize(uint64_t consumerUsage, int bufferCount) {
     status_t err = mConsumer->setConsumerUsageBits(consumerUsage);
-    LOG_ALWAYS_FATAL_IF(err != OK,
-            "Failed to set consumer usage bits to %#" PRIx64, consumerUsage);
+    LOG_ALWAYS_FATAL_IF(err != OK, "Failed to set consumer usage bits to %#" PRIx64, consumerUsage);
     if (bufferCount != DEFAULT_MAX_BUFFERS) {
         err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
-        LOG_ALWAYS_FATAL_IF(err != OK,
-                "Failed to set max acquired buffer count to %d", bufferCount);
+        LOG_ALWAYS_FATAL_IF(err != OK, "Failed to set max acquired buffer count to %d",
+                            bufferCount);
     }
 }
 
@@ -87,17 +109,38 @@
 
 status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
         const sp<Fence>& releaseFence) {
-    status_t err;
+    Mutex::Autolock _l(mMutex);
+    return releaseBufferSlotLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
+}
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+status_t BufferItemConsumer::releaseBuffer(const sp<GraphicBuffer>& buffer,
+                                           const sp<Fence>& releaseFence) {
     Mutex::Autolock _l(mMutex);
 
-    err = addReleaseFenceLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
+    if (buffer == nullptr) {
+        return BAD_VALUE;
+    }
+
+    int slotIndex = getSlotForBufferLocked(buffer);
+    if (slotIndex == INVALID_BUFFER_SLOT) {
+        return BAD_VALUE;
+    }
+
+    return releaseBufferSlotLocked(slotIndex, buffer, releaseFence);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+status_t BufferItemConsumer::releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
+                                                     const sp<Fence>& releaseFence) {
+    status_t err;
+
+    err = addReleaseFenceLocked(slotIndex, buffer, releaseFence);
     if (err != OK) {
         BI_LOGE("Failed to addReleaseFenceLocked");
     }
 
-    err = releaseBufferLocked(item.mSlot, item.mGraphicBuffer, EGL_NO_DISPLAY,
-            EGL_NO_SYNC_KHR);
+    err = releaseBufferLocked(slotIndex, buffer, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
     if (err != OK && err != IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
         BI_LOGE("Failed to release buffer: %s (%d)",
                 strerror(-err), err);
diff --git a/libs/gui/BufferReleaseChannel.cpp b/libs/gui/BufferReleaseChannel.cpp
new file mode 100644
index 0000000..27367aa
--- /dev/null
+++ b/libs/gui/BufferReleaseChannel.cpp
@@ -0,0 +1,358 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BufferReleaseChannel"
+
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+
+#include <android-base/result.h>
+#include <android/binder_status.h>
+#include <binder/Parcel.h>
+#include <utils/Flattenable.h>
+
+#include <gui/BufferReleaseChannel.h>
+#include <private/gui/ParcelUtils.h>
+
+using android::base::Result;
+
+namespace android::gui {
+
+namespace {
+
+template <typename T>
+static void readAligned(const void*& buffer, size_t& size, T& value) {
+    size -= FlattenableUtils::align<alignof(T)>(buffer);
+    FlattenableUtils::read(buffer, size, value);
+}
+
+template <typename T>
+static void writeAligned(void*& buffer, size_t& size, T value) {
+    size -= FlattenableUtils::align<alignof(T)>(buffer);
+    FlattenableUtils::write(buffer, size, value);
+}
+
+template <typename T>
+static void addAligned(size_t& size, T /* value */) {
+    size = FlattenableUtils::align<sizeof(T)>(size);
+    size += sizeof(T);
+}
+
+template <typename T>
+static inline constexpr uint32_t low32(const T n) {
+    return static_cast<uint32_t>(static_cast<uint64_t>(n));
+}
+
+template <typename T>
+static inline constexpr uint32_t high32(const T n) {
+    return static_cast<uint32_t>(static_cast<uint64_t>(n) >> 32);
+}
+
+template <typename T>
+static inline constexpr T to64(const uint32_t lo, const uint32_t hi) {
+    return static_cast<T>(static_cast<uint64_t>(hi) << 32 | lo);
+}
+
+} // namespace
+
+size_t BufferReleaseChannel::Message::getPodSize() const {
+    size_t size = 0;
+    addAligned(size, low32(releaseCallbackId.bufferId));
+    addAligned(size, high32(releaseCallbackId.bufferId));
+    addAligned(size, low32(releaseCallbackId.framenumber));
+    addAligned(size, high32(releaseCallbackId.framenumber));
+    addAligned(size, maxAcquiredBufferCount);
+    return size;
+}
+
+size_t BufferReleaseChannel::Message::getFlattenedSize() const {
+    size_t size = releaseFence->getFlattenedSize();
+    size = FlattenableUtils::align<4>(size);
+    size += getPodSize();
+    return size;
+}
+
+status_t BufferReleaseChannel::Message::flatten(void*& buffer, size_t& size, int*& fds,
+                                                size_t& count) const {
+    if (status_t err = releaseFence->flatten(buffer, size, fds, count); err != OK) {
+        return err;
+    }
+    size -= FlattenableUtils::align<4>(buffer);
+
+    // Check we still have enough space
+    if (size < getPodSize()) {
+        return NO_MEMORY;
+    }
+
+    writeAligned(buffer, size, low32(releaseCallbackId.bufferId));
+    writeAligned(buffer, size, high32(releaseCallbackId.bufferId));
+    writeAligned(buffer, size, low32(releaseCallbackId.framenumber));
+    writeAligned(buffer, size, high32(releaseCallbackId.framenumber));
+    writeAligned(buffer, size, maxAcquiredBufferCount);
+    return OK;
+}
+
+status_t BufferReleaseChannel::Message::unflatten(void const*& buffer, size_t& size,
+                                                  int const*& fds, size_t& count) {
+    releaseFence = new Fence();
+    if (status_t err = releaseFence->unflatten(buffer, size, fds, count); err != OK) {
+        return err;
+    }
+    size -= FlattenableUtils::align<4>(buffer);
+
+    // Check we still have enough space
+    if (size < getPodSize()) {
+        return OK;
+    }
+
+    uint32_t bufferIdLo = 0, bufferIdHi = 0;
+    uint32_t frameNumberLo = 0, frameNumberHi = 0;
+
+    readAligned(buffer, size, bufferIdLo);
+    readAligned(buffer, size, bufferIdHi);
+    releaseCallbackId.bufferId = to64<int64_t>(bufferIdLo, bufferIdHi);
+    readAligned(buffer, size, frameNumberLo);
+    readAligned(buffer, size, frameNumberHi);
+    releaseCallbackId.framenumber = to64<uint64_t>(frameNumberLo, frameNumberHi);
+    readAligned(buffer, size, maxAcquiredBufferCount);
+
+    return OK;
+}
+
+status_t BufferReleaseChannel::ConsumerEndpoint::readReleaseFence(
+        ReleaseCallbackId& outReleaseCallbackId, sp<Fence>& outReleaseFence,
+        uint32_t& outMaxAcquiredBufferCount) {
+    Message message;
+    mFlattenedBuffer.resize(message.getFlattenedSize());
+    std::array<uint8_t, CMSG_SPACE(sizeof(int))> controlMessageBuffer;
+
+    iovec iov{
+            .iov_base = mFlattenedBuffer.data(),
+            .iov_len = mFlattenedBuffer.size(),
+    };
+
+    msghdr msg{
+            .msg_iov = &iov,
+            .msg_iovlen = 1,
+            .msg_control = controlMessageBuffer.data(),
+            .msg_controllen = controlMessageBuffer.size(),
+    };
+
+    int result;
+    do {
+        result = recvmsg(mFd, &msg, 0);
+    } while (result == -1 && errno == EINTR);
+    if (result == -1) {
+        if (errno == EWOULDBLOCK || errno == EAGAIN) {
+            return WOULD_BLOCK;
+        }
+        ALOGE("Error reading release fence from socket: error %#x (%s)", errno, strerror(errno));
+        return UNKNOWN_ERROR;
+    }
+
+    if (msg.msg_iovlen != 1) {
+        ALOGE("Error reading release fence from socket: bad data length");
+        return UNKNOWN_ERROR;
+    }
+
+    if (msg.msg_controllen % sizeof(int) != 0) {
+        ALOGE("Error reading release fence from socket: bad fd length");
+        return UNKNOWN_ERROR;
+    }
+
+    size_t dataLen = msg.msg_iov->iov_len;
+    const void* data = static_cast<const void*>(msg.msg_iov->iov_base);
+    if (!data) {
+        ALOGE("Error reading release fence from socket: no buffer data");
+        return UNKNOWN_ERROR;
+    }
+
+    size_t fdCount = 0;
+    const int* fdData = nullptr;
+    if (cmsghdr* cmsg = CMSG_FIRSTHDR(&msg)) {
+        fdData = reinterpret_cast<const int*>(CMSG_DATA(cmsg));
+        fdCount = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
+    }
+
+    if (status_t err = message.unflatten(data, dataLen, fdData, fdCount); err != OK) {
+        return err;
+    }
+
+    outReleaseCallbackId = message.releaseCallbackId;
+    outReleaseFence = std::move(message.releaseFence);
+    outMaxAcquiredBufferCount = message.maxAcquiredBufferCount;
+
+    return OK;
+}
+
+int BufferReleaseChannel::ProducerEndpoint::writeReleaseFence(const ReleaseCallbackId& callbackId,
+                                                              const sp<Fence>& fence,
+                                                              uint32_t maxAcquiredBufferCount) {
+    Message message{callbackId, fence ? fence : Fence::NO_FENCE, maxAcquiredBufferCount};
+    mFlattenedBuffer.resize(message.getFlattenedSize());
+    int flattenedFd;
+    {
+        // Make copies of needed items since flatten modifies them, and we don't
+        // want to send anything if there's an error during flatten.
+        void* flattenedBufferPtr = mFlattenedBuffer.data();
+        size_t flattenedBufferSize = mFlattenedBuffer.size();
+        int* flattenedFdPtr = &flattenedFd;
+        size_t flattenedFdCount = 1;
+        if (status_t err = message.flatten(flattenedBufferPtr, flattenedBufferSize, flattenedFdPtr,
+                                           flattenedFdCount);
+            err != OK) {
+            ALOGE("Failed to flatten BufferReleaseChannel message.");
+            return err;
+        }
+    }
+
+    iovec iov{
+            .iov_base = mFlattenedBuffer.data(),
+            .iov_len = mFlattenedBuffer.size(),
+    };
+
+    msghdr msg{
+            .msg_iov = &iov,
+            .msg_iovlen = 1,
+    };
+
+    std::array<uint8_t, CMSG_SPACE(sizeof(int))> controlMessageBuffer;
+    if (fence && fence->isValid()) {
+        msg.msg_control = controlMessageBuffer.data();
+        msg.msg_controllen = controlMessageBuffer.size();
+
+        cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
+        cmsg->cmsg_level = SOL_SOCKET;
+        cmsg->cmsg_type = SCM_RIGHTS;
+        cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+        memcpy(CMSG_DATA(cmsg), &flattenedFd, sizeof(int));
+    }
+
+    int result;
+    do {
+        result = sendmsg(mFd, &msg, 0);
+    } while (result == -1 && errno == EINTR);
+    if (result == -1) {
+        ALOGD("Error writing release fence to socket: error %#x (%s)", errno, strerror(errno));
+        return -errno;
+    }
+
+    return OK;
+}
+
+status_t BufferReleaseChannel::ProducerEndpoint::readFromParcel(const android::Parcel* parcel) {
+    if (!parcel) return STATUS_BAD_VALUE;
+    SAFE_PARCEL(parcel->readUtf8FromUtf16, &mName);
+    SAFE_PARCEL(parcel->readUniqueFileDescriptor, &mFd);
+    return STATUS_OK;
+}
+
+status_t BufferReleaseChannel::ProducerEndpoint::writeToParcel(android::Parcel* parcel) const {
+    if (!parcel) return STATUS_BAD_VALUE;
+    SAFE_PARCEL(parcel->writeUtf8AsUtf16, mName);
+    SAFE_PARCEL(parcel->writeUniqueFileDescriptor, mFd);
+    return STATUS_OK;
+}
+
+status_t BufferReleaseChannel::open(std::string name,
+                                    std::unique_ptr<ConsumerEndpoint>& outConsumer,
+                                    std::shared_ptr<ProducerEndpoint>& outProducer) {
+    outConsumer.reset();
+    outProducer.reset();
+
+    int sockets[2];
+    if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sockets)) {
+        ALOGE("[%s] Failed to create socket pair. errorno=%d message='%s'", name.c_str(), errno,
+              strerror(errno));
+        return -errno;
+    }
+
+    android::base::unique_fd consumerFd(sockets[0]);
+    android::base::unique_fd producerFd(sockets[1]);
+
+    // Socket buffer size. The default is typically about 128KB, which is much larger than
+    // we really need.
+    size_t bufferSize = 32 * 1024;
+    if (setsockopt(consumerFd.get(), SOL_SOCKET, SO_SNDBUF, &bufferSize, sizeof(bufferSize)) ==
+        -1) {
+        ALOGE("[%s] Failed to set consumer socket send buffer size. errno=%d message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+    if (setsockopt(consumerFd.get(), SOL_SOCKET, SO_RCVBUF, &bufferSize, sizeof(bufferSize)) ==
+        -1) {
+        ALOGE("[%s] Failed to set consumer socket receive buffer size. errno=%d "
+              "message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+    if (setsockopt(producerFd.get(), SOL_SOCKET, SO_SNDBUF, &bufferSize, sizeof(bufferSize)) ==
+        -1) {
+        ALOGE("[%s] Failed to set producer socket send buffer size. errno=%d message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+    if (setsockopt(producerFd.get(), SOL_SOCKET, SO_RCVBUF, &bufferSize, sizeof(bufferSize)) ==
+        -1) {
+        ALOGE("[%s] Failed to set producer socket receive buffer size. errno=%d "
+              "message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+
+    // Configure the consumer socket to be non-blocking.
+    int flags = fcntl(consumerFd.get(), F_GETFL, 0);
+    if (flags == -1) {
+        ALOGE("[%s] Failed to get consumer socket flags. errno=%d message='%s'", name.c_str(),
+              errno, strerror(errno));
+        return -errno;
+    }
+    if (fcntl(consumerFd.get(), F_SETFL, flags | O_NONBLOCK) == -1) {
+        ALOGE("[%s] Failed to set consumer socket to non-blocking mode. errno=%d "
+              "message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+
+    // Configure a timeout for the producer socket.
+    const timeval timeout{.tv_sec = 1, .tv_usec = 0};
+    if (setsockopt(producerFd.get(), SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeval)) == -1) {
+        ALOGE("[%s] Failed to set producer socket timeout. errno=%d message='%s'", name.c_str(),
+              errno, strerror(errno));
+        return -errno;
+    }
+
+    // Make the consumer read-only
+    if (shutdown(consumerFd.get(), SHUT_WR) == -1) {
+        ALOGE("[%s] Failed to shutdown writing on consumer socket. errno=%d message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+
+    // Make the producer write-only
+    if (shutdown(producerFd.get(), SHUT_RD) == -1) {
+        ALOGE("[%s] Failed to shutdown reading on producer socket. errno=%d message='%s'",
+              name.c_str(), errno, strerror(errno));
+        return -errno;
+    }
+
+    outConsumer = std::make_unique<ConsumerEndpoint>(name, std::move(consumerFd));
+    outProducer = std::make_shared<ProducerEndpoint>(std::move(name), std::move(producerFd));
+    return STATUS_OK;
+}
+
+} // namespace android::gui
\ No newline at end of file
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index b625c3f..602bba8 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-#include <inttypes.h>
-
 #define LOG_TAG "ConsumerBase"
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 //#define LOG_NDEBUG 0
@@ -29,17 +27,23 @@
 
 #include <cutils/atomic.h>
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
-#include <gui/ISurfaceComposer.h>
-#include <gui/SurfaceComposerClient.h>
+#include <gui/BufferQueue.h>
 #include <gui/ConsumerBase.h>
+#include <gui/ISurfaceComposer.h>
+#include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
 
 #include <private/gui/ComposerService.h>
 
+#include <log/log.h>
 #include <utils/Log.h>
 #include <utils/String8.h>
 #include <utils/Trace.h>
 
+#include <inttypes.h>
+
 // Macros for including the ConsumerBase name in log messages
 #define CB_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
 // #define CB_LOGD(x, ...) ALOGD("[%s] " x, mName.c_str(), ##__VA_ARGS__)
@@ -59,6 +63,30 @@
         mAbandoned(false),
         mConsumer(bufferQueue),
         mPrevFinalReleaseFence(Fence::NO_FENCE) {
+    initialize(controlledByApp);
+}
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+ConsumerBase::ConsumerBase(bool controlledByApp, bool consumerIsSurfaceFlinger)
+      : mAbandoned(false), mPrevFinalReleaseFence(Fence::NO_FENCE) {
+    sp<IGraphicBufferProducer> producer;
+    BufferQueue::createBufferQueue(&producer, &mConsumer, consumerIsSurfaceFlinger);
+    mSurface = sp<Surface>::make(producer, controlledByApp);
+    initialize(controlledByApp);
+}
+
+ConsumerBase::ConsumerBase(const sp<IGraphicBufferProducer>& producer,
+                           const sp<IGraphicBufferConsumer>& consumer, bool controlledByApp)
+      : mAbandoned(false),
+        mConsumer(consumer),
+        mSurface(sp<Surface>::make(producer, controlledByApp)),
+        mPrevFinalReleaseFence(Fence::NO_FENCE) {
+    initialize(controlledByApp);
+}
+
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
+void ConsumerBase::initialize(bool controlledByApp) {
     // Choose a name using the PID and a process-unique ID.
     mName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());
 
@@ -96,6 +124,35 @@
     abandon();
 }
 
+int ConsumerBase::getSlotForBufferLocked(const sp<GraphicBuffer>& buffer) {
+    if (!buffer) {
+        return BufferQueue::INVALID_BUFFER_SLOT;
+    }
+
+    uint64_t id = buffer->getId();
+    for (int i = 0; i < BufferQueueDefs::NUM_BUFFER_SLOTS; i++) {
+        auto& slot = mSlots[i];
+        if (slot.mGraphicBuffer && slot.mGraphicBuffer->getId() == id) {
+            return i;
+        }
+    }
+
+    return BufferQueue::INVALID_BUFFER_SLOT;
+}
+
+status_t ConsumerBase::detachBufferLocked(int slotIndex) {
+    status_t result = mConsumer->detachBuffer(slotIndex);
+
+    if (result != NO_ERROR) {
+        CB_LOGE("Failed to detach buffer: %d", result);
+        return result;
+    }
+
+    freeBufferLocked(slotIndex);
+
+    return result;
+}
+
 void ConsumerBase::freeBufferLocked(int slotIndex) {
     CB_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
     mSlots[slotIndex].mGraphicBuffer = nullptr;
@@ -252,16 +309,30 @@
         return NO_INIT;
     }
 
-    status_t result = mConsumer->detachBuffer(slot);
-    if (result != NO_ERROR) {
-        CB_LOGE("Failed to detach buffer: %d", result);
-        return result;
+    return detachBufferLocked(slot);
+}
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+status_t ConsumerBase::detachBuffer(const sp<GraphicBuffer>& buffer) {
+    CB_LOGV("detachBuffer");
+    Mutex::Autolock lock(mMutex);
+
+    if (mAbandoned) {
+        CB_LOGE("detachBuffer: ConsumerBase is abandoned!");
+        return NO_INIT;
+    }
+    if (buffer == nullptr) {
+        return BAD_VALUE;
     }
 
-    freeBufferLocked(slot);
+    int slotIndex = getSlotForBufferLocked(buffer);
+    if (slotIndex == BufferQueue::INVALID_BUFFER_SLOT) {
+        return BAD_VALUE;
+    }
 
-    return result;
+    return detachBufferLocked(slotIndex);
 }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
 status_t ConsumerBase::setDefaultBufferSize(uint32_t width, uint32_t height) {
     Mutex::Autolock _l(mMutex);
@@ -309,6 +380,17 @@
     return mConsumer->setTransformHint(hint);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+status_t ConsumerBase::setMaxBufferCount(int bufferCount) {
+    Mutex::Autolock lock(mMutex);
+    if (mAbandoned) {
+        CB_LOGE("setMaxBufferCount: ConsumerBase is abandoned!");
+        return NO_INIT;
+    }
+    return mConsumer->setMaxBufferCount(bufferCount);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 status_t ConsumerBase::setMaxAcquiredBufferCount(int maxAcquiredBuffers) {
     Mutex::Autolock lock(mMutex);
     if (mAbandoned) {
@@ -318,6 +400,17 @@
     return mConsumer->setMaxAcquiredBufferCount(maxAcquiredBuffers);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+status_t ConsumerBase::setConsumerIsProtected(bool isProtected) {
+    Mutex::Autolock lock(mMutex);
+    if (mAbandoned) {
+        CB_LOGE("setConsumerIsProtected: ConsumerBase is abandoned!");
+        return NO_INIT;
+    }
+    return mConsumer->setConsumerIsProtected(isProtected);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 sp<NativeHandle> ConsumerBase::getSidebandStream() const {
     Mutex::Autolock _l(mMutex);
     if (mAbandoned) {
@@ -384,6 +477,19 @@
     }
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+sp<Surface> ConsumerBase::getSurface() const {
+    LOG_ALWAYS_FATAL_IF(mSurface == nullptr,
+                        "It's illegal to get the surface of a Consumer that does not own it. This "
+                        "should be impossible once the old CTOR is removed.");
+    return mSurface;
+}
+
+sp<IGraphicBufferConsumer> ConsumerBase::getIGraphicBufferConsumer() const {
+    return mConsumer;
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 status_t ConsumerBase::acquireBufferLocked(BufferItem *item,
         nsecs_t presentWhen, uint64_t maxFrameNumber) {
     if (mAbandoned) {
diff --git a/libs/gui/CpuConsumer.cpp b/libs/gui/CpuConsumer.cpp
index 3031fa1..23b432e 100644
--- a/libs/gui/CpuConsumer.cpp
+++ b/libs/gui/CpuConsumer.cpp
@@ -18,9 +18,9 @@
 #define LOG_TAG "CpuConsumer"
 //#define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
-#include <gui/CpuConsumer.h>
-
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
+#include <gui/CpuConsumer.h>
 #include <utils/Log.h>
 
 #define CC_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
@@ -31,12 +31,25 @@
 
 namespace android {
 
-CpuConsumer::CpuConsumer(const sp<IGraphicBufferConsumer>& bq,
-        size_t maxLockedBuffers, bool controlledByApp) :
-    ConsumerBase(bq, controlledByApp),
-    mMaxLockedBuffers(maxLockedBuffers),
-    mCurrentLockedBuffers(0)
-{
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+CpuConsumer::CpuConsumer(size_t maxLockedBuffers, bool controlledByApp,
+                         bool isConsumerSurfaceFlinger)
+      : ConsumerBase(controlledByApp, isConsumerSurfaceFlinger),
+        mMaxLockedBuffers(maxLockedBuffers),
+        mCurrentLockedBuffers(0) {
+    // Create tracking entries for locked buffers
+    mAcquiredBuffers.insertAt(0, maxLockedBuffers);
+
+    mConsumer->setConsumerUsageBits(GRALLOC_USAGE_SW_READ_OFTEN);
+    mConsumer->setMaxAcquiredBufferCount(static_cast<int32_t>(maxLockedBuffers));
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
+CpuConsumer::CpuConsumer(const sp<IGraphicBufferConsumer>& bq, size_t maxLockedBuffers,
+                         bool controlledByApp)
+      : ConsumerBase(bq, controlledByApp),
+        mMaxLockedBuffers(maxLockedBuffers),
+        mCurrentLockedBuffers(0) {
     // Create tracking entries for locked buffers
     mAcquiredBuffers.insertAt(0, maxLockedBuffers);
 
diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp
index d49489c..95cce5c 100644
--- a/libs/gui/GLConsumer.cpp
+++ b/libs/gui/GLConsumer.cpp
@@ -101,6 +101,34 @@
     return hasIt;
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+GLConsumer::GLConsumer(uint32_t tex, uint32_t texTarget, bool useFenceSync, bool isControlledByApp)
+      : ConsumerBase(isControlledByApp, /* isConsumerSurfaceFlinger */ false),
+        mCurrentCrop(Rect::EMPTY_RECT),
+        mCurrentTransform(0),
+        mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
+        mCurrentFence(Fence::NO_FENCE),
+        mCurrentTimestamp(0),
+        mCurrentDataSpace(HAL_DATASPACE_UNKNOWN),
+        mCurrentFrameNumber(0),
+        mDefaultWidth(1),
+        mDefaultHeight(1),
+        mFilteringEnabled(true),
+        mTexName(tex),
+        mUseFenceSync(useFenceSync),
+        mTexTarget(texTarget),
+        mEglDisplay(EGL_NO_DISPLAY),
+        mEglContext(EGL_NO_CONTEXT),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mAttached(true) {
+    GLC_LOGV("GLConsumer");
+
+    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
+
+    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t tex,
         uint32_t texTarget, bool useFenceSync, bool isControlledByApp) :
     ConsumerBase(bq, isControlledByApp),
@@ -130,27 +158,54 @@
     mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
 }
 
-GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t texTarget,
-        bool useFenceSync, bool isControlledByApp) :
-    ConsumerBase(bq, isControlledByApp),
-    mCurrentCrop(Rect::EMPTY_RECT),
-    mCurrentTransform(0),
-    mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
-    mCurrentFence(Fence::NO_FENCE),
-    mCurrentTimestamp(0),
-    mCurrentDataSpace(HAL_DATASPACE_UNKNOWN),
-    mCurrentFrameNumber(0),
-    mDefaultWidth(1),
-    mDefaultHeight(1),
-    mFilteringEnabled(true),
-    mTexName(0),
-    mUseFenceSync(useFenceSync),
-    mTexTarget(texTarget),
-    mEglDisplay(EGL_NO_DISPLAY),
-    mEglContext(EGL_NO_CONTEXT),
-    mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
-    mAttached(false)
-{
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+GLConsumer::GLConsumer(uint32_t texTarget, bool useFenceSync, bool isControlledByApp)
+      : ConsumerBase(isControlledByApp, /* isConsumerSurfaceFlinger */ false),
+        mCurrentCrop(Rect::EMPTY_RECT),
+        mCurrentTransform(0),
+        mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
+        mCurrentFence(Fence::NO_FENCE),
+        mCurrentTimestamp(0),
+        mCurrentDataSpace(HAL_DATASPACE_UNKNOWN),
+        mCurrentFrameNumber(0),
+        mDefaultWidth(1),
+        mDefaultHeight(1),
+        mFilteringEnabled(true),
+        mTexName(0),
+        mUseFenceSync(useFenceSync),
+        mTexTarget(texTarget),
+        mEglDisplay(EGL_NO_DISPLAY),
+        mEglContext(EGL_NO_CONTEXT),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mAttached(false) {
+    GLC_LOGV("GLConsumer");
+
+    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
+
+    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
+GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t texTarget, bool useFenceSync,
+                       bool isControlledByApp)
+      : ConsumerBase(bq, isControlledByApp),
+        mCurrentCrop(Rect::EMPTY_RECT),
+        mCurrentTransform(0),
+        mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
+        mCurrentFence(Fence::NO_FENCE),
+        mCurrentTimestamp(0),
+        mCurrentDataSpace(HAL_DATASPACE_UNKNOWN),
+        mCurrentFrameNumber(0),
+        mDefaultWidth(1),
+        mDefaultHeight(1),
+        mFilteringEnabled(true),
+        mTexName(0),
+        mUseFenceSync(useFenceSync),
+        mTexTarget(texTarget),
+        mEglDisplay(EGL_NO_DISPLAY),
+        mEglContext(EGL_NO_CONTEXT),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mAttached(false) {
     GLC_LOGV("GLConsumer");
 
     memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(),
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index ff6b558..2699368 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -62,7 +62,7 @@
 
     status_t setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& state,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             InputWindowCommands commands, int64_t desiredPresentTime, bool isAutoTimestamp,
             const std::vector<client_cache_t>& uncacheBuffers, bool hasListenerCallbacks,
             const std::vector<ListenerCallbacks>& listenerCallbacks, uint64_t transactionId,
diff --git a/libs/gui/ITransactionCompletedListener.cpp b/libs/gui/ITransactionCompletedListener.cpp
index f5d19aa..83fc827 100644
--- a/libs/gui/ITransactionCompletedListener.cpp
+++ b/libs/gui/ITransactionCompletedListener.cpp
@@ -43,12 +43,6 @@
 
 } // Anonymous namespace
 
-namespace { // Anonymous
-
-constexpr int32_t kSerializedCallbackTypeOnCompelteWithJankData = 2;
-
-} // Anonymous namespace
-
 status_t FrameEventHistoryStats::writeToParcel(Parcel* output) const {
     status_t err = output->writeUint64(frameNumber);
     if (err != NO_ERROR) return err;
@@ -119,23 +113,6 @@
     return err;
 }
 
-JankData::JankData()
-      : frameVsyncId(FrameTimelineInfo::INVALID_VSYNC_ID), jankType(JankType::None) {}
-
-status_t JankData::writeToParcel(Parcel* output) const {
-    SAFE_PARCEL(output->writeInt64, frameVsyncId);
-    SAFE_PARCEL(output->writeInt32, jankType);
-    SAFE_PARCEL(output->writeInt64, frameIntervalNs);
-    return NO_ERROR;
-}
-
-status_t JankData::readFromParcel(const Parcel* input) {
-    SAFE_PARCEL(input->readInt64, &frameVsyncId);
-    SAFE_PARCEL(input->readInt32, &jankType);
-    SAFE_PARCEL(input->readInt64, &frameIntervalNs);
-    return NO_ERROR;
-}
-
 status_t SurfaceStats::writeToParcel(Parcel* output) const {
     SAFE_PARCEL(output->writeStrongBinder, surfaceControl);
     if (const auto* acquireFence = std::get_if<sp<Fence>>(&acquireTimeOrFence)) {
@@ -160,10 +137,6 @@
 
     SAFE_PARCEL(output->writeUint32, currentMaxAcquiredBufferCount);
     SAFE_PARCEL(output->writeParcelable, eventStats);
-    SAFE_PARCEL(output->writeInt32, static_cast<int32_t>(jankData.size()));
-    for (const auto& data : jankData) {
-        SAFE_PARCEL(output->writeParcelable, data);
-    }
     SAFE_PARCEL(output->writeParcelable, previousReleaseCallbackId);
     return NO_ERROR;
 }
@@ -200,13 +173,6 @@
     SAFE_PARCEL(input->readUint32, &currentMaxAcquiredBufferCount);
     SAFE_PARCEL(input->readParcelable, &eventStats);
 
-    int32_t jankData_size = 0;
-    SAFE_PARCEL_READ_SIZE(input->readInt32, &jankData_size, input->dataSize());
-    for (int i = 0; i < jankData_size; i++) {
-        JankData data;
-        SAFE_PARCEL(input->readParcelable, &data);
-        jankData.push_back(data);
-    }
     SAFE_PARCEL(input->readParcelable, &previousReleaseCallbackId);
     return NO_ERROR;
 }
@@ -371,11 +337,7 @@
 
 status_t CallbackId::writeToParcel(Parcel* output) const {
     SAFE_PARCEL(output->writeInt64, id);
-    if (type == Type::ON_COMPLETE && includeJankData) {
-        SAFE_PARCEL(output->writeInt32, kSerializedCallbackTypeOnCompelteWithJankData);
-    } else {
-        SAFE_PARCEL(output->writeInt32, static_cast<int32_t>(type));
-    }
+    SAFE_PARCEL(output->writeInt32, static_cast<int32_t>(type));
     return NO_ERROR;
 }
 
@@ -383,13 +345,7 @@
     SAFE_PARCEL(input->readInt64, &id);
     int32_t typeAsInt;
     SAFE_PARCEL(input->readInt32, &typeAsInt);
-    if (typeAsInt == kSerializedCallbackTypeOnCompelteWithJankData) {
-        type = Type::ON_COMPLETE;
-        includeJankData = true;
-    } else {
-        type = static_cast<CallbackId::Type>(typeAsInt);
-        includeJankData = false;
-    }
+    type = static_cast<CallbackId::Type>(typeAsInt);
     return NO_ERROR;
 }
 
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 3745805..0714fd9 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -17,7 +17,6 @@
 #define LOG_TAG "LayerState"
 
 #include <cinttypes>
-#include <cmath>
 
 #include <android/gui/ISurfaceComposerClient.h>
 #include <android/native_window.h>
@@ -177,6 +176,7 @@
     }
 
     SAFE_PARCEL(output.write, stretchEffect);
+    SAFE_PARCEL(output.writeParcelable, edgeExtensionParameters);
     SAFE_PARCEL(output.write, bufferCrop);
     SAFE_PARCEL(output.write, destinationFrame);
     SAFE_PARCEL(output.writeInt32, static_cast<uint32_t>(trustedOverlay));
@@ -193,6 +193,13 @@
     SAFE_PARCEL(output.writeFloat, currentHdrSdrRatio);
     SAFE_PARCEL(output.writeFloat, desiredHdrSdrRatio);
     SAFE_PARCEL(output.writeInt32, static_cast<int32_t>(cachingHint));
+
+    const bool hasBufferReleaseChannel = (bufferReleaseChannel != nullptr);
+    SAFE_PARCEL(output.writeBool, hasBufferReleaseChannel);
+    if (hasBufferReleaseChannel) {
+        SAFE_PARCEL(output.writeParcelable, *bufferReleaseChannel);
+    }
+
     return NO_ERROR;
 }
 
@@ -306,6 +313,7 @@
     }
 
     SAFE_PARCEL(input.read, stretchEffect);
+    SAFE_PARCEL(input.readParcelable, &edgeExtensionParameters);
     SAFE_PARCEL(input.read, bufferCrop);
     SAFE_PARCEL(input.read, destinationFrame);
     uint32_t trustedOverlayInt;
@@ -337,6 +345,13 @@
     SAFE_PARCEL(input.readInt32, &tmpInt32);
     cachingHint = static_cast<gui::CachingHint>(tmpInt32);
 
+    bool hasBufferReleaseChannel;
+    SAFE_PARCEL(input.readBool, &hasBufferReleaseChannel);
+    if (hasBufferReleaseChannel) {
+        bufferReleaseChannel = std::make_shared<gui::BufferReleaseChannel::ProducerEndpoint>();
+        SAFE_PARCEL(input.readParcelable, bufferReleaseChannel.get());
+    }
+
     return NO_ERROR;
 }
 
@@ -682,6 +697,10 @@
         what |= eStretchChanged;
         stretchEffect = other.stretchEffect;
     }
+    if (other.what & eEdgeExtensionChanged) {
+        what |= eEdgeExtensionChanged;
+        edgeExtensionParameters = other.edgeExtensionParameters;
+    }
     if (other.what & eBufferCropChanged) {
         what |= eBufferCropChanged;
         bufferCrop = other.bufferCrop;
@@ -712,6 +731,10 @@
     if (other.what & eFlushJankData) {
         what |= eFlushJankData;
     }
+    if (other.what & eBufferReleaseChannelChanged) {
+        what |= eBufferReleaseChannelChanged;
+        bufferReleaseChannel = other.bufferReleaseChannel;
+    }
     if ((other.what & what) != other.what) {
         ALOGE("Unmerged SurfaceComposer Transaction properties. LayerState::merge needs updating? "
               "other.what=0x%" PRIX64 " what=0x%" PRIX64 " unmerged flags=0x%" PRIX64,
@@ -783,6 +806,7 @@
     CHECK_DIFF(diff, eAutoRefreshChanged, other, autoRefresh);
     CHECK_DIFF(diff, eTrustedOverlayChanged, other, trustedOverlay);
     CHECK_DIFF(diff, eStretchChanged, other, stretchEffect);
+    CHECK_DIFF(diff, eEdgeExtensionChanged, other, edgeExtensionParameters);
     CHECK_DIFF(diff, eBufferCropChanged, other, bufferCrop);
     CHECK_DIFF(diff, eDestinationFrameChanged, other, destinationFrame);
     if (other.what & eProducerDisconnect) diff |= eProducerDisconnect;
@@ -790,6 +814,7 @@
     CHECK_DIFF(diff, eColorChanged, other, color.rgb);
     CHECK_DIFF(diff, eColorSpaceAgnosticChanged, other, colorSpaceAgnostic);
     CHECK_DIFF(diff, eDimmingEnabledChanged, other, dimmingEnabled);
+    if (other.what & eBufferReleaseChannelChanged) diff |= eBufferReleaseChannelChanged;
     return diff;
 }
 
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 87fd448..4a8df9e 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -21,6 +21,8 @@
 #include <gui/Surface.h>
 
 #include <condition_variable>
+#include <cstddef>
+#include <cstdint>
 #include <deque>
 #include <mutex>
 #include <thread>
@@ -44,8 +46,6 @@
 #include <gui/AidlStatusUtil.h>
 #include <gui/BufferItem.h>
 
-#include <gui/IProducerListener.h>
-
 #include <gui/ISurfaceComposer.h>
 #include <gui/LayerState.h>
 #include <private/gui/ComposerService.h>
@@ -163,6 +163,12 @@
             mReqFormat, mReqUsage);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+status_t Surface::allowAllocation(bool allowAllocation) {
+    return mGraphicBufferProducer->allowAllocation(allowAllocation);
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 status_t Surface::setGenerationNumber(uint32_t generation) {
     status_t result = mGraphicBufferProducer->setGenerationNumber(generation);
     if (result == NO_ERROR) {
@@ -695,6 +701,50 @@
     return OK;
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+status_t Surface::dequeueBuffer(sp<GraphicBuffer>* buffer, sp<Fence>* outFence) {
+    if (buffer == nullptr || outFence == nullptr) {
+        return BAD_VALUE;
+    }
+
+    android_native_buffer_t* anb;
+    int fd = -1;
+    status_t res = dequeueBuffer(&anb, &fd);
+    *buffer = GraphicBuffer::from(anb);
+    *outFence = sp<Fence>::make(fd);
+    return res;
+}
+
+status_t Surface::queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd) {
+    if (buffer == nullptr) {
+        return BAD_VALUE;
+    }
+    return queueBuffer(buffer.get(), fd ? fd->get() : -1);
+}
+
+status_t Surface::detachBuffer(const sp<GraphicBuffer>& buffer) {
+    if (nullptr == buffer) {
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock lock(mMutex);
+
+    uint64_t bufferId = buffer->getId();
+    for (int slot = 0; slot < Surface::NUM_BUFFER_SLOTS; ++slot) {
+        auto& bufferSlot = mSlots[slot];
+        if (bufferSlot.buffer != nullptr && bufferSlot.buffer->getId() == bufferId) {
+            bufferSlot.buffer = nullptr;
+            bufferSlot.dirtyRegion = Region::INVALID_REGION;
+            return mGraphicBufferProducer->detachBuffer(slot);
+        }
+    }
+
+    return BAD_VALUE;
+}
+
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 int Surface::dequeueBuffers(std::vector<BatchBuffer>* buffers) {
     using DequeueBufferInput = IGraphicBufferProducer::DequeueBufferInput;
     using DequeueBufferOutput = IGraphicBufferProducer::DequeueBufferOutput;
@@ -1118,6 +1168,117 @@
     }
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
+    ATRACE_CALL();
+    ALOGV("Surface::queueBuffer");
+
+    IGraphicBufferProducer::QueueBufferOutput output;
+    IGraphicBufferProducer::QueueBufferInput input;
+    int slot;
+    sp<Fence> fence;
+    {
+        Mutex::Autolock lock(mMutex);
+
+        slot = getSlotFromBufferLocked(buffer);
+        if (slot < 0) {
+            if (fenceFd >= 0) {
+                close(fenceFd);
+            }
+            return slot;
+        }
+        if (mSharedBufferSlot == slot && mSharedBufferHasBeenQueued) {
+            if (fenceFd >= 0) {
+                close(fenceFd);
+            }
+            return OK;
+        }
+
+        getQueueBufferInputLocked(buffer, fenceFd, mTimestamp, &input);
+        applyGrallocMetadataLocked(buffer, input);
+        fence = input.fence;
+    }
+    nsecs_t now = systemTime();
+    // Drop the lock temporarily while we touch the underlying producer. In the case of a local
+    // BufferQueue, the following should be allowable:
+    //
+    //    Surface::queueBuffer
+    // -> IConsumerListener::onFrameAvailable callback triggers automatically
+    // ->   implementation calls IGraphicBufferConsumer::acquire/release immediately
+    // -> SurfaceListener::onBufferRelesed callback triggers automatically
+    // ->   implementation calls Surface::dequeueBuffer
+    status_t err = mGraphicBufferProducer->queueBuffer(slot, input, &output);
+    {
+        Mutex::Autolock lock(mMutex);
+
+        mLastQueueDuration = systemTime() - now;
+        if (err != OK) {
+            ALOGE("queueBuffer: error queuing buffer, %d", err);
+        }
+
+        onBufferQueuedLocked(slot, fence, output);
+    }
+
+    return err;
+}
+
+int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers) {
+    ATRACE_CALL();
+    ALOGV("Surface::queueBuffers");
+
+    size_t numBuffers = buffers.size();
+    std::vector<IGraphicBufferProducer::QueueBufferInput> queueBufferInputs(numBuffers);
+    std::vector<IGraphicBufferProducer::QueueBufferOutput> queueBufferOutputs;
+    std::vector<int> bufferSlots(numBuffers, -1);
+    std::vector<sp<Fence>> bufferFences(numBuffers);
+
+    int err;
+    {
+        Mutex::Autolock lock(mMutex);
+
+        if (mSharedBufferMode) {
+            ALOGE("%s: batched operation is not supported in shared buffer mode", __FUNCTION__);
+            return INVALID_OPERATION;
+        }
+
+        for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
+            int i = getSlotFromBufferLocked(buffers[batchIdx].buffer);
+            if (i < 0) {
+                if (buffers[batchIdx].fenceFd >= 0) {
+                    close(buffers[batchIdx].fenceFd);
+                }
+                return i;
+            }
+            bufferSlots[batchIdx] = i;
+
+            IGraphicBufferProducer::QueueBufferInput input;
+            getQueueBufferInputLocked(buffers[batchIdx].buffer, buffers[batchIdx].fenceFd,
+                                      buffers[batchIdx].timestamp, &input);
+            bufferFences[batchIdx] = input.fence;
+            queueBufferInputs[batchIdx] = input;
+        }
+    }
+    nsecs_t now = systemTime();
+    err = mGraphicBufferProducer->queueBuffers(queueBufferInputs, &queueBufferOutputs);
+    {
+        Mutex::Autolock lock(mMutex);
+        mLastQueueDuration = systemTime() - now;
+        if (err != OK) {
+            ALOGE("%s: error queuing buffer, %d", __FUNCTION__, err);
+        }
+
+        for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
+            onBufferQueuedLocked(bufferSlots[batchIdx], bufferFences[batchIdx],
+                                 queueBufferOutputs[batchIdx]);
+        }
+    }
+
+    return err;
+}
+
+#else
+
 int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
     ATRACE_CALL();
     ALOGV("Surface::queueBuffer");
@@ -1205,6 +1366,8 @@
     return err;
 }
 
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 void Surface::querySupportedTimestampsLocked() const {
     // mMutex must be locked when calling this method.
 
@@ -1860,30 +2023,22 @@
 }
 
 int Surface::connect(int api) {
-    static sp<IProducerListener> listener = new StubProducerListener();
+    static sp<SurfaceListener> listener = new StubSurfaceListener();
     return connect(api, listener);
 }
 
-int Surface::connect(int api, const sp<IProducerListener>& listener) {
-    return connect(api, listener, false);
-}
-
-int Surface::connect(
-        int api, bool reportBufferRemoval, const sp<SurfaceListener>& sListener) {
-    if (sListener != nullptr) {
-        mListenerProxy = new ProducerListenerProxy(this, sListener);
-    }
-    return connect(api, mListenerProxy, reportBufferRemoval);
-}
-
-int Surface::connect(
-        int api, const sp<IProducerListener>& listener, bool reportBufferRemoval) {
+int Surface::connect(int api, const sp<SurfaceListener>& listener, bool reportBufferRemoval) {
     ATRACE_CALL();
     ALOGV("Surface::connect");
     Mutex::Autolock lock(mMutex);
     IGraphicBufferProducer::QueueBufferOutput output;
     mReportRemovedBuffers = reportBufferRemoval;
-    int err = mGraphicBufferProducer->connect(listener, api, mProducerControlledByApp, &output);
+    if (listener != nullptr) {
+        mListenerProxy = new ProducerListenerProxy(this, listener);
+    }
+
+    int err =
+            mGraphicBufferProducer->connect(mListenerProxy, api, mProducerControlledByApp, &output);
     if (err == NO_ERROR) {
         mDefaultWidth = output.width;
         mDefaultHeight = output.height;
@@ -1911,7 +2066,6 @@
     return err;
 }
 
-
 int Surface::disconnect(int api, IGraphicBufferProducer::DisconnectMode mode) {
     ATRACE_CALL();
     ALOGV("Surface::disconnect");
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index af91bb3..b5d9366 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -20,8 +20,11 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <com_android_graphics_libgui_flags.h>
+
 #include <android/gui/BnWindowInfosReportedListener.h>
 #include <android/gui/DisplayState.h>
+#include <android/gui/EdgeExtensionParameters.h>
 #include <android/gui/ISurfaceComposerClient.h>
 #include <android/gui/IWindowInfosListener.h>
 #include <android/gui/TrustedPresentationThresholds.h>
@@ -86,7 +89,8 @@
     return (((int64_t)getpid()) << 32) | ++idCounter;
 }
 
-void emptyCallback(nsecs_t, const sp<Fence>&, const std::vector<SurfaceControlStats>&) {}
+constexpr int64_t INVALID_VSYNC = -1;
+
 } // namespace
 
 const std::string SurfaceComposerClient::kEmpty{};
@@ -207,9 +211,168 @@
     return DefaultComposerClient::getComposerClient();
 }
 
+// ---------------------------------------------------------------------------
+
 JankDataListener::~JankDataListener() {
 }
 
+status_t JankDataListener::flushJankData() {
+    if (mLayerId == -1) {
+        return INVALID_OPERATION;
+    }
+
+    binder::Status status = ComposerServiceAIDL::getComposerService()->flushJankData(mLayerId);
+    return statusTFromBinderStatus(status);
+}
+
+std::mutex JankDataListenerFanOut::sFanoutInstanceMutex;
+std::unordered_map<int32_t, sp<JankDataListenerFanOut>> JankDataListenerFanOut::sFanoutInstances;
+
+binder::Status JankDataListenerFanOut::onJankData(const std::vector<gui::JankData>& jankData) {
+    // Find the highest VSync ID.
+    int64_t lastVsync = jankData.empty()
+            ? 0
+            : std::max_element(jankData.begin(), jankData.end(),
+                               [](const gui::JankData& jd1, const gui::JankData& jd2) {
+                                   return jd1.frameVsyncId < jd2.frameVsyncId;
+                               })
+                      ->frameVsyncId;
+
+    // Fan out the jank data callback.
+    std::vector<wp<JankDataListener>> listenersToRemove;
+    for (auto listener : getActiveListeners()) {
+        if (!listener->onJankDataAvailable(jankData) ||
+            (listener->mRemoveAfter >= 0 && listener->mRemoveAfter <= lastVsync)) {
+            listenersToRemove.push_back(listener);
+        }
+    }
+
+    return removeListeners(listenersToRemove)
+            ? binder::Status::ok()
+            : binder::Status::fromExceptionCode(binder::Status::EX_NULL_POINTER);
+}
+
+status_t JankDataListenerFanOut::addListener(sp<SurfaceControl> sc, sp<JankDataListener> listener) {
+    sp<IBinder> layer = sc->getHandle();
+    if (layer == nullptr) {
+        return UNEXPECTED_NULL;
+    }
+    int32_t layerId = sc->getLayerId();
+
+    sFanoutInstanceMutex.lock();
+    auto it = sFanoutInstances.find(layerId);
+    bool registerNeeded = it == sFanoutInstances.end();
+    sp<JankDataListenerFanOut> fanout;
+    if (registerNeeded) {
+        fanout = sp<JankDataListenerFanOut>::make(layerId);
+        sFanoutInstances.insert({layerId, fanout});
+    } else {
+        fanout = it->second;
+    }
+
+    fanout->mMutex.lock();
+    fanout->mListeners.insert(listener);
+    fanout->mMutex.unlock();
+
+    sFanoutInstanceMutex.unlock();
+
+    if (registerNeeded) {
+        binder::Status status =
+                ComposerServiceAIDL::getComposerService()->addJankListener(layer, fanout);
+        return statusTFromBinderStatus(status);
+    }
+    return OK;
+}
+
+status_t JankDataListenerFanOut::removeListener(sp<JankDataListener> listener) {
+    int32_t layerId = listener->mLayerId;
+    if (layerId == -1) {
+        return INVALID_OPERATION;
+    }
+
+    int64_t removeAfter = INVALID_VSYNC;
+    sp<JankDataListenerFanOut> fanout;
+
+    sFanoutInstanceMutex.lock();
+    auto it = sFanoutInstances.find(layerId);
+    if (it != sFanoutInstances.end()) {
+        fanout = it->second;
+        removeAfter = fanout->updateAndGetRemovalVSync();
+    }
+
+    if (removeAfter != INVALID_VSYNC) {
+        // Remove this instance from the map, so that no new listeners are added
+        // while we're scheduled to be removed.
+        sFanoutInstances.erase(layerId);
+    }
+    sFanoutInstanceMutex.unlock();
+
+    if (removeAfter < 0) {
+        return OK;
+    }
+
+    binder::Status status =
+            ComposerServiceAIDL::getComposerService()->removeJankListener(layerId, fanout,
+                                                                          removeAfter);
+    return statusTFromBinderStatus(status);
+}
+
+std::vector<sp<JankDataListener>> JankDataListenerFanOut::getActiveListeners() {
+    std::scoped_lock<std::mutex> lock(mMutex);
+
+    std::vector<sp<JankDataListener>> listeners;
+    for (auto it = mListeners.begin(); it != mListeners.end();) {
+        auto listener = it->promote();
+        if (!listener) {
+            it = mListeners.erase(it);
+        } else {
+            listeners.push_back(std::move(listener));
+            it++;
+        }
+    }
+    return listeners;
+}
+
+bool JankDataListenerFanOut::removeListeners(const std::vector<wp<JankDataListener>>& listeners) {
+    std::scoped_lock<std::mutex> fanoutLock(sFanoutInstanceMutex);
+    std::scoped_lock<std::mutex> listenersLock(mMutex);
+
+    for (auto listener : listeners) {
+        mListeners.erase(listener);
+    }
+
+    if (mListeners.empty()) {
+        sFanoutInstances.erase(mLayerId);
+        return false;
+    }
+    return true;
+}
+
+int64_t JankDataListenerFanOut::updateAndGetRemovalVSync() {
+    std::scoped_lock<std::mutex> lock(mMutex);
+    if (mRemoveAfter >= 0) {
+        // We've already been scheduled to be removed. Don't schedule again.
+        return INVALID_VSYNC;
+    }
+
+    int64_t removeAfter = 0;
+    for (auto it = mListeners.begin(); it != mListeners.end();) {
+        auto listener = it->promote();
+        if (!listener) {
+            it = mListeners.erase(it);
+        } else if (listener->mRemoveAfter < 0) {
+            // We have at least one listener that's still interested. Don't remove.
+            return INVALID_VSYNC;
+        } else {
+            removeAfter = std::max(removeAfter, listener->mRemoveAfter);
+            it++;
+        }
+    }
+
+    mRemoveAfter = removeAfter;
+    return removeAfter;
+}
+
 // ---------------------------------------------------------------------------
 
 // TransactionCompletedListener does not use ANDROID_SINGLETON_STATIC_INSTANCE because it needs
@@ -256,14 +419,6 @@
                 surfaceControls,
         CallbackId::Type callbackType) {
     std::lock_guard<std::mutex> lock(mMutex);
-    return addCallbackFunctionLocked(callbackFunction, surfaceControls, callbackType);
-}
-
-CallbackId TransactionCompletedListener::addCallbackFunctionLocked(
-        const TransactionCompletedCallback& callbackFunction,
-        const std::unordered_set<sp<SurfaceControl>, SurfaceComposerClient::SCHash>&
-                surfaceControls,
-        CallbackId::Type callbackType) {
     startListeningLocked();
 
     CallbackId callbackId(getNextIdLocked(), callbackType);
@@ -272,33 +427,11 @@
 
     for (const auto& surfaceControl : surfaceControls) {
         callbackSurfaceControls[surfaceControl->getHandle()] = surfaceControl;
-
-        if (callbackType == CallbackId::Type::ON_COMPLETE &&
-            mJankListeners.count(surfaceControl->getLayerId()) != 0) {
-            callbackId.includeJankData = true;
-        }
     }
 
     return callbackId;
 }
 
-void TransactionCompletedListener::addJankListener(const sp<JankDataListener>& listener,
-                                                   sp<SurfaceControl> surfaceControl) {
-    std::lock_guard<std::mutex> lock(mMutex);
-    mJankListeners.insert({surfaceControl->getLayerId(), listener});
-}
-
-void TransactionCompletedListener::removeJankListener(const sp<JankDataListener>& listener) {
-    std::lock_guard<std::mutex> lock(mMutex);
-    for (auto it = mJankListeners.begin(); it != mJankListeners.end();) {
-        if (it->second == listener) {
-            it = mJankListeners.erase(it);
-        } else {
-            it++;
-        }
-    }
-}
-
 void TransactionCompletedListener::setReleaseBufferCallback(const ReleaseCallbackId& callbackId,
                                                             ReleaseBufferCallback listener) {
     std::scoped_lock<std::mutex> lock(mMutex);
@@ -325,32 +458,20 @@
 }
 
 void TransactionCompletedListener::addSurfaceControlToCallbacks(
-        SurfaceComposerClient::CallbackInfo& callbackInfo,
-        const sp<SurfaceControl>& surfaceControl) {
+        const sp<SurfaceControl>& surfaceControl,
+        const std::unordered_set<CallbackId, CallbackIdHash>& callbackIds) {
     std::lock_guard<std::mutex> lock(mMutex);
 
-    bool includingJankData = false;
-    for (auto callbackId : callbackInfo.callbackIds) {
+    for (auto callbackId : callbackIds) {
         mCallbacks[callbackId].surfaceControls.emplace(std::piecewise_construct,
                                                        std::forward_as_tuple(
                                                                surfaceControl->getHandle()),
                                                        std::forward_as_tuple(surfaceControl));
-        includingJankData = includingJankData || callbackId.includeJankData;
-    }
-
-    // If no registered callback is requesting jank data, but there is a jank listener registered
-    // on the new surface control, add a synthetic callback that requests the jank data.
-    if (!includingJankData && mJankListeners.count(surfaceControl->getLayerId()) != 0) {
-        CallbackId callbackId =
-                addCallbackFunctionLocked(&emptyCallback, callbackInfo.surfaceControls,
-                                          CallbackId::Type::ON_COMPLETE);
-        callbackInfo.callbackIds.emplace(callbackId);
     }
 }
 
 void TransactionCompletedListener::onTransactionCompleted(ListenerStats listenerStats) {
     std::unordered_map<CallbackId, CallbackTranslation, CallbackIdHash> callbacksMap;
-    std::multimap<int32_t, sp<JankDataListener>> jankListenersMap;
     {
         std::lock_guard<std::mutex> lock(mMutex);
 
@@ -366,7 +487,6 @@
          * sp<SurfaceControl> that could possibly exist for the callbacks.
          */
         callbacksMap = mCallbacks;
-        jankListenersMap = mJankListeners;
         for (const auto& transactionStats : listenerStats.transactionStats) {
             for (auto& callbackId : transactionStats.callbackIds) {
                 mCallbacks.erase(callbackId);
@@ -486,12 +606,6 @@
                         transactionStats.presentFence, surfaceStats);
                 }
             }
-
-            if (surfaceStats.jankData.empty()) continue;
-            auto jankRange = jankListenersMap.equal_range(layerId);
-            for (auto it = jankRange.first; it != jankRange.second; it++) {
-                it->second->onJankDataAvailable(surfaceStats.jankData);
-            }
         }
     }
 }
@@ -713,7 +827,6 @@
 
 SurfaceComposerClient::Transaction::Transaction(const Transaction& other)
       : mId(other.mId),
-        mTransactionNestCount(other.mTransactionNestCount),
         mAnimation(other.mAnimation),
         mEarlyWakeupStart(other.mEarlyWakeupStart),
         mEarlyWakeupEnd(other.mEarlyWakeupEnd),
@@ -753,7 +866,6 @@
 
 status_t SurfaceComposerClient::Transaction::readFromParcel(const Parcel* parcel) {
     const uint64_t transactionId = parcel->readUint64();
-    const uint32_t transactionNestCount = parcel->readUint32();
     const bool animation = parcel->readBool();
     const bool earlyWakeupStart = parcel->readBool();
     const bool earlyWakeupEnd = parcel->readBool();
@@ -850,7 +962,6 @@
 
     // Parsing was successful. Update the object.
     mId = transactionId;
-    mTransactionNestCount = transactionNestCount;
     mAnimation = animation;
     mEarlyWakeupStart = earlyWakeupStart;
     mEarlyWakeupEnd = earlyWakeupEnd;
@@ -882,7 +993,6 @@
     const_cast<SurfaceComposerClient::Transaction*>(this)->cacheBuffers();
 
     parcel->writeUint64(mId);
-    parcel->writeUint32(mTransactionNestCount);
     parcel->writeBool(mAnimation);
     parcel->writeBool(mEarlyWakeupStart);
     parcel->writeBool(mEarlyWakeupEnd);
@@ -1004,8 +1114,9 @@
 
         // register all surface controls for all callbackIds for this listener that is merging
         for (const auto& surfaceControl : currentProcessCallbackInfo.surfaceControls) {
-            mTransactionCompletedListener->addSurfaceControlToCallbacks(currentProcessCallbackInfo,
-                                                                        surfaceControl);
+            mTransactionCompletedListener
+                    ->addSurfaceControlToCallbacks(surfaceControl,
+                                                   currentProcessCallbackInfo.callbackIds);
         }
     }
 
@@ -1033,7 +1144,6 @@
     mInputWindowCommands.clear();
     mUncacheBuffers.clear();
     mMayContainBuffer = false;
-    mTransactionNestCount = 0;
     mAnimation = false;
     mEarlyWakeupStart = false;
     mEarlyWakeupEnd = false;
@@ -1059,7 +1169,8 @@
     uncacheBuffer.token = BufferCache::getInstance().getToken();
     uncacheBuffer.id = cacheId;
     Vector<ComposerState> composerStates;
-    status_t status = sf->setTransactionState(FrameTimelineInfo{}, composerStates, {},
+    Vector<DisplayState> displayStates;
+    status_t status = sf->setTransactionState(FrameTimelineInfo{}, composerStates, displayStates,
                                               ISurfaceComposer::eOneWay,
                                               Transaction::getDefaultApplyToken(), {}, systemTime(),
                                               true, {uncacheBuffer}, false, {}, generateId(), {});
@@ -1361,7 +1472,7 @@
     auto& callbackInfo = mListenerCallbacks[TransactionCompletedListener::getIInstance()];
     callbackInfo.surfaceControls.insert(sc);
 
-    mTransactionCompletedListener->addSurfaceControlToCallbacks(callbackInfo, sc);
+    mTransactionCompletedListener->addSurfaceControlToCallbacks(sc, callbackInfo.callbackIds);
 }
 
 SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setPosition(
@@ -2217,6 +2328,23 @@
     return *this;
 }
 
+bool SurfaceComposerClient::flagEdgeExtensionEffectUseShader() {
+    return com::android::graphics::libgui::flags::edge_extension_shader();
+}
+
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setEdgeExtensionEffect(
+        const sp<SurfaceControl>& sc, const gui::EdgeExtensionParameters& effect) {
+    layer_state_t* s = getLayerState(sc);
+    if (!s) {
+        mStatus = BAD_INDEX;
+        return *this;
+    }
+
+    s->what |= layer_state_t::eEdgeExtensionChanged;
+    s->edgeExtensionParameters = effect;
+    return *this;
+}
+
 SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setBufferCrop(
         const sp<SurfaceControl>& sc, const Rect& bufferCrop) {
     layer_state_t* s = getLayerState(sc);
@@ -2262,6 +2390,22 @@
     return *this;
 }
 
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setBufferReleaseChannel(
+        const sp<SurfaceControl>& sc,
+        const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel) {
+    layer_state_t* s = getLayerState(sc);
+    if (!s) {
+        mStatus = BAD_INDEX;
+        return *this;
+    }
+
+    s->what |= layer_state_t::eBufferReleaseChannelChanged;
+    s->bufferReleaseChannel = channel;
+
+    registerSurfaceControlForCallback(sc);
+    return *this;
+}
+
 // ---------------------------------------------------------------------------
 
 DisplayState& SurfaceComposerClient::Transaction::getDisplayState(const sp<IBinder>& token) {
diff --git a/libs/tracing_perfetto/include/trace_result.h b/libs/gui/aidl/android/gui/EdgeExtensionParameters.aidl
similarity index 70%
copy from libs/tracing_perfetto/include/trace_result.h
copy to libs/gui/aidl/android/gui/EdgeExtensionParameters.aidl
index f7581fc..44f4259 100644
--- a/libs/tracing_perfetto/include/trace_result.h
+++ b/libs/gui/aidl/android/gui/EdgeExtensionParameters.aidl
@@ -14,17 +14,14 @@
  * limitations under the License.
  */
 
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
+package android.gui;
 
-namespace tracing_perfetto {
 
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
-};
-
-}
-
-#endif  // TRACE_RESULT_H
+/** @hide */
+parcelable EdgeExtensionParameters {
+    // These represent the translation of the window as requested by the animation
+    boolean extendRight;
+    boolean extendLeft;
+    boolean extendTop;
+    boolean extendBottom;
+}
\ No newline at end of file
diff --git a/libs/tracing_perfetto/include/trace_result.h b/libs/gui/aidl/android/gui/IJankListener.aidl
similarity index 68%
copy from libs/tracing_perfetto/include/trace_result.h
copy to libs/gui/aidl/android/gui/IJankListener.aidl
index f7581fc..2bfd1af 100644
--- a/libs/tracing_perfetto/include/trace_result.h
+++ b/libs/gui/aidl/android/gui/IJankListener.aidl
@@ -14,17 +14,16 @@
  * limitations under the License.
  */
 
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
+package android.gui;
 
-namespace tracing_perfetto {
+import android.gui.JankData;
 
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
-};
+/** @hide */
+interface IJankListener {
 
+  /**
+   * Callback reporting jank data of the most recent frames.
+   * @See {@link ISurfaceComposer#addJankListener(IBinder, IJankListener)}
+   */
+  void onJankData(in JankData[] data);
 }
-
-#endif  // TRACE_RESULT_H
diff --git a/libs/gui/aidl/android/gui/ISurfaceComposer.aidl b/libs/gui/aidl/android/gui/ISurfaceComposer.aidl
index 6d018ea..ac14138 100644
--- a/libs/gui/aidl/android/gui/ISurfaceComposer.aidl
+++ b/libs/gui/aidl/android/gui/ISurfaceComposer.aidl
@@ -42,6 +42,7 @@
 import android.gui.ITunnelModeEnabledListener;
 import android.gui.IWindowInfosListener;
 import android.gui.IWindowInfosPublisher;
+import android.gui.IJankListener;
 import android.gui.LayerCaptureArgs;
 import android.gui.OverlayProperties;
 import android.gui.PullAtomData;
@@ -580,4 +581,22 @@
      * This method should not block the ShutdownThread therefore it's handled asynchronously.
      */
     oneway void notifyShutdown();
+
+    /**
+     * Registers the jank listener on the given layer to receive jank data of future frames.
+     */
+    void addJankListener(IBinder layer, IJankListener listener);
+
+    /**
+     * Flushes any pending jank data on the given layer to any registered listeners on that layer.
+     */
+    oneway void flushJankData(int layerId);
+
+    /**
+     * Schedules the removal of the jank listener from the given layer after the VSync with the
+     * specified ID. Use a value <= 0 for afterVsync to remove the listener immediately. The given
+     * listener will not be removed before the given VSync, but may still receive data for frames
+     * past the provided VSync.
+     */
+    oneway void removeJankListener(int layerId, IJankListener listener, long afterVsync);
 }
diff --git a/libs/tracing_perfetto/include/trace_result.h b/libs/gui/aidl/android/gui/JankData.aidl
similarity index 64%
copy from libs/tracing_perfetto/include/trace_result.h
copy to libs/gui/aidl/android/gui/JankData.aidl
index f7581fc..7ea9d22 100644
--- a/libs/tracing_perfetto/include/trace_result.h
+++ b/libs/gui/aidl/android/gui/JankData.aidl
@@ -14,17 +14,22 @@
  * limitations under the License.
  */
 
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
+ package android.gui;
 
-namespace tracing_perfetto {
+ /** @hide */
+parcelable JankData {
+  /**
+   * Identifier for the frame submitted with Transaction.setFrameTimelineVsyncId
+   */
+  long frameVsyncId;
 
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
-};
+  /**
+   * Bitmask of jank types that occurred.
+   */
+  int jankType;
 
+  /**
+   * Expected duration in nanoseconds of this frame.
+   */
+  long frameIntervalNs;
 }
-
-#endif  // TRACE_RESULT_H
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 0e1a505..4dafc57 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -17,9 +17,10 @@
 #ifndef ANDROID_GUI_BLAST_BUFFER_QUEUE_H
 #define ANDROID_GUI_BLAST_BUFFER_QUEUE_H
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
-
+#include <gui/IGraphicBufferConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
 #include <gui/SurfaceComposerClient.h>
 
@@ -28,7 +29,6 @@
 #include <utils/RefBase.h>
 
 #include <system/window.h>
-#include <thread>
 #include <queue>
 
 #include <com_android_graphics_libgui_flags.h>
@@ -40,12 +40,20 @@
 
 class BLASTBufferItemConsumer : public BufferItemConsumer {
 public:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    BLASTBufferItemConsumer(const sp<IGraphicBufferProducer>& producer,
+                            const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
+                            int bufferCount, bool controlledByApp, wp<BLASTBufferQueue> bbq)
+          : BufferItemConsumer(producer, consumer, consumerUsage, bufferCount, controlledByApp),
+#else
     BLASTBufferItemConsumer(const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
                             int bufferCount, bool controlledByApp, wp<BLASTBufferQueue> bbq)
           : BufferItemConsumer(consumer, consumerUsage, bufferCount, controlledByApp),
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
             mBLASTBufferQueue(std::move(bbq)),
             mCurrentlyConnected(false),
-            mPreviouslyConnected(false) {}
+            mPreviouslyConnected(false) {
+    }
 
     void onDisconnect() override EXCLUDES(mMutex);
     void addAndGetFrameTimestamps(const NewFrameEventsEntry* newTimestamps,
@@ -131,6 +139,8 @@
 
     virtual ~BLASTBufferQueue();
 
+    void onFirstRef() override;
+
 private:
     friend class BLASTBufferQueueHelper;
     friend class BBQBufferQueueProducer;
@@ -170,8 +180,16 @@
 
     // BufferQueue internally allows 1 more than
     // the max to be acquired
-    int32_t mMaxAcquiredBuffers = 1;
+    int32_t mMaxAcquiredBuffers GUARDED_BY(mMutex) = 1;
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    int32_t mMaxDequeuedBuffers GUARDED_BY(mMutex) = 1;
+    static constexpr int32_t kMaxBufferCount = BufferQueueDefs::NUM_BUFFER_SLOTS;
 
+    bool mAsyncMode GUARDED_BY(mMutex) = false;
+    bool mSharedBufferMode GUARDED_BY(mMutex) = false;
+
+    int32_t mNumDequeued GUARDED_BY(mMutex) = 0;
+#endif
     int32_t mNumFrameAvailable GUARDED_BY(mMutex) = 0;
     int32_t mNumAcquired GUARDED_BY(mMutex) = 0;
 
diff --git a/libs/gui/include/gui/BufferItemConsumer.h b/libs/gui/include/gui/BufferItemConsumer.h
index a905610..6810eda 100644
--- a/libs/gui/include/gui/BufferItemConsumer.h
+++ b/libs/gui/include/gui/BufferItemConsumer.h
@@ -17,13 +17,15 @@
 #ifndef ANDROID_GUI_BUFFERITEMCONSUMER_H
 #define ANDROID_GUI_BUFFERITEMCONSUMER_H
 
-#include <gui/ConsumerBase.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueue.h>
+#include <gui/ConsumerBase.h>
 
 #define ANDROID_GRAPHICS_BUFFERITEMCONSUMER_JNI_ID "mBufferItemConsumer"
 
 namespace android {
 
+class GraphicBuffer;
 class String8;
 
 /**
@@ -51,9 +53,17 @@
     // access at the same time.
     // controlledByApp tells whether this consumer is controlled by the
     // application.
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    BufferItemConsumer(uint64_t consumerUsage, int bufferCount = DEFAULT_MAX_BUFFERS,
+                       bool controlledByApp = false, bool isConsumerSurfaceFlinger = false);
+    BufferItemConsumer(const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
+                       int bufferCount = DEFAULT_MAX_BUFFERS, bool controlledByApp = false)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+#else
     BufferItemConsumer(const sp<IGraphicBufferConsumer>& consumer,
             uint64_t consumerUsage, int bufferCount = DEFAULT_MAX_BUFFERS,
             bool controlledByApp = false);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
     ~BufferItemConsumer() override;
 
@@ -85,7 +95,25 @@
     status_t releaseBuffer(const BufferItem &item,
             const sp<Fence>& releaseFence = Fence::NO_FENCE);
 
-   private:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    status_t releaseBuffer(const sp<GraphicBuffer>& buffer,
+                           const sp<Fence>& releaseFence = Fence::NO_FENCE);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+protected:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    // This should only be used by BLASTBufferQueue:
+    BufferItemConsumer(const sp<IGraphicBufferProducer>& producer,
+                       const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
+                       int bufferCount = DEFAULT_MAX_BUFFERS, bool controlledByApp = false);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
+private:
+    void initialize(uint64_t consumerUsage, int bufferCount);
+
+    status_t releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
+                                     const sp<Fence>& releaseFence);
+
     void freeBufferLocked(int slotIndex) override;
 
     // mBufferFreedListener is the listener object that will be called when
diff --git a/libs/gui/include/gui/BufferReleaseChannel.h b/libs/gui/include/gui/BufferReleaseChannel.h
new file mode 100644
index 0000000..51fe0b6
--- /dev/null
+++ b/libs/gui/include/gui/BufferReleaseChannel.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <android-base/unique_fd.h>
+
+#include <binder/Parcelable.h>
+#include <gui/ITransactionCompletedListener.h>
+#include <ui/Fence.h>
+#include <utils/Errors.h>
+
+namespace android::gui {
+
+/**
+ * IPC wrapper to pass release fences from SurfaceFlinger to apps via a local unix domain socket.
+ */
+class BufferReleaseChannel {
+private:
+    class Endpoint {
+    public:
+        Endpoint(std::string name, android::base::unique_fd fd)
+              : mName(std::move(name)), mFd(std::move(fd)) {}
+        Endpoint() {}
+
+        Endpoint(Endpoint&&) noexcept = default;
+        Endpoint& operator=(Endpoint&&) noexcept = default;
+
+        Endpoint(const Endpoint&) = delete;
+        void operator=(const Endpoint&) = delete;
+
+        const android::base::unique_fd& getFd() const { return mFd; }
+
+    protected:
+        std::string mName;
+        android::base::unique_fd mFd;
+    };
+
+public:
+    class ConsumerEndpoint : public Endpoint {
+    public:
+        ConsumerEndpoint(std::string name, android::base::unique_fd fd)
+              : Endpoint(std::move(name), std::move(fd)) {}
+
+        /**
+         * Reads a release fence from the BufferReleaseChannel.
+         *
+         * Returns OK on success.
+         * Returns WOULD_BLOCK if there is no fence present.
+         * Other errors probably indicate that the channel is broken.
+         */
+        status_t readReleaseFence(ReleaseCallbackId& outReleaseCallbackId,
+                                  sp<Fence>& outReleaseFence, uint32_t& maxAcquiredBufferCount);
+
+    private:
+        std::vector<uint8_t> mFlattenedBuffer;
+    };
+
+    class ProducerEndpoint : public Endpoint, public Parcelable {
+    public:
+        ProducerEndpoint(std::string name, android::base::unique_fd fd)
+              : Endpoint(std::move(name), std::move(fd)) {}
+        ProducerEndpoint() {}
+
+        status_t readFromParcel(const android::Parcel* parcel) override;
+        status_t writeToParcel(android::Parcel* parcel) const override;
+
+        status_t writeReleaseFence(const ReleaseCallbackId&, const sp<Fence>& releaseFence,
+                                   uint32_t maxAcquiredBufferCount);
+
+    private:
+        std::vector<uint8_t> mFlattenedBuffer;
+    };
+
+    /**
+     * Create two endpoints that make up the BufferReleaseChannel.
+     *
+     * Return OK on success.
+     */
+    static status_t open(const std::string name, std::unique_ptr<ConsumerEndpoint>& outConsumer,
+                         std::shared_ptr<ProducerEndpoint>& outProducer);
+
+    struct Message : public Flattenable<Message> {
+        ReleaseCallbackId releaseCallbackId;
+        sp<Fence> releaseFence = Fence::NO_FENCE;
+        uint32_t maxAcquiredBufferCount;
+
+        Message() = default;
+        Message(ReleaseCallbackId releaseCallbackId, sp<Fence> releaseFence,
+                uint32_t maxAcquiredBufferCount)
+              : releaseCallbackId{releaseCallbackId},
+                releaseFence{std::move(releaseFence)},
+                maxAcquiredBufferCount{maxAcquiredBufferCount} {}
+
+        // Flattenable protocol
+        size_t getFlattenedSize() const;
+
+        size_t getFdCount() const { return releaseFence->getFdCount(); }
+
+        status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const;
+
+        status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count);
+
+    private:
+        size_t getPodSize() const;
+    };
+};
+
+} // namespace android::gui
diff --git a/libs/gui/include/gui/ConsumerBase.h b/libs/gui/include/gui/ConsumerBase.h
index 8ff0cd0..e976aa4 100644
--- a/libs/gui/include/gui/ConsumerBase.h
+++ b/libs/gui/include/gui/ConsumerBase.h
@@ -17,18 +17,17 @@
 #ifndef ANDROID_GUI_CONSUMERBASE_H
 #define ANDROID_GUI_CONSUMERBASE_H
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueueDefs.h>
 #include <gui/IConsumerListener.h>
 #include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
 #include <gui/OccupancyTracker.h>
-
 #include <ui/PixelFormat.h>
-
 #include <utils/String8.h>
 #include <utils/Vector.h>
 #include <utils/threads.h>
 
-
 namespace android {
 // ----------------------------------------------------------------------------
 
@@ -76,12 +75,28 @@
     void dumpState(String8& result) const;
     void dumpState(String8& result, const char* prefix) const;
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    // Returns a Surface that can be used as the producer for this consumer.
+    sp<Surface> getSurface() const;
+
+    // DEPRECATED, DO NOT USE. Returns the underlying IGraphicBufferConsumer
+    // that backs this ConsumerBase.
+    sp<IGraphicBufferConsumer> getIGraphicBufferConsumer() const
+            __attribute((deprecated("DO NOT USE: Temporary hack for refactoring")));
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
     // setFrameAvailableListener sets the listener object that will be notified
     // when a new frame becomes available.
     void setFrameAvailableListener(const wp<FrameAvailableListener>& listener);
 
     // See IGraphicBufferConsumer::detachBuffer
-    status_t detachBuffer(int slot);
+    status_t detachBuffer(int slot) __attribute((
+            deprecated("Please use the GraphicBuffer variant--slots are deprecated.")));
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // See IGraphicBufferConsumer::detachBuffer
+    status_t detachBuffer(const sp<GraphicBuffer>& buffer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
     // See IGraphicBufferConsumer::setDefaultBufferSize
     status_t setDefaultBufferSize(uint32_t width, uint32_t height);
@@ -98,9 +113,18 @@
     // See IGraphicBufferConsumer::setTransformHint
     status_t setTransformHint(uint32_t hint);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    // See IGraphicBufferConsumer::setMaxBufferCount
+    status_t setMaxBufferCount(int bufferCount);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
     // See IGraphicBufferConsumer::setMaxAcquiredBufferCount
     status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    status_t setConsumerIsProtected(bool isProtected);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
     // See IGraphicBufferConsumer::getSidebandStream
     sp<NativeHandle> getSidebandStream() const;
 
@@ -115,12 +139,24 @@
     ConsumerBase(const ConsumerBase&);
     void operator=(const ConsumerBase&);
 
+    void initialize(bool controlledByApp);
+
 protected:
     // ConsumerBase constructs a new ConsumerBase object to consume image
     // buffers from the given IGraphicBufferConsumer.
     // The controlledByApp flag indicates that this consumer is under the application's
     // control.
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    explicit ConsumerBase(bool controlledByApp = false, bool consumerIsSurfaceFlinger = false);
+    explicit ConsumerBase(const sp<IGraphicBufferProducer>& producer,
+                          const sp<IGraphicBufferConsumer>& consumer, bool controlledByApp = false);
+
+    explicit ConsumerBase(const sp<IGraphicBufferConsumer>& consumer, bool controlledByApp = false)
+            __attribute((deprecated("ConsumerBase should own its own producer, and constructing it "
+                                    "without one is fragile! This method is going away soon.")));
+#else
     explicit ConsumerBase(const sp<IGraphicBufferConsumer>& consumer, bool controlledByApp = false);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
     // onLastStrongRef gets called by RefBase just before the dtor of the most
     // derived class.  It is used to clean up the buffers so that ConsumerBase
@@ -150,6 +186,10 @@
     virtual void onBuffersReleased() override;
     virtual void onSidebandStreamChanged() override;
 
+    virtual int getSlotForBufferLocked(const sp<GraphicBuffer>& buffer);
+
+    virtual status_t detachBufferLocked(int slotIndex);
+
     // freeBufferLocked frees up the given buffer slot.  If the slot has been
     // initialized this will release the reference to the GraphicBuffer in that
     // slot.  Otherwise it has no effect.
@@ -264,10 +304,16 @@
     Mutex mFrameAvailableMutex;
     wp<FrameAvailableListener> mFrameAvailableListener;
 
-    // The ConsumerBase has-a BufferQueue and is responsible for creating this object
-    // if none is supplied
+    // The ConsumerBase has-a BufferQueue and is responsible for creating these
+    // objects if not supplied.
     sp<IGraphicBufferConsumer> mConsumer;
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    // This Surface wraps the IGraphicBufferConsumer created for this
+    // ConsumerBase.
+    sp<Surface> mSurface;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
     // The final release fence of the most recent buffer released by
     // releaseBufferLocked.
     sp<Fence> mPrevFinalReleaseFence;
diff --git a/libs/gui/include/gui/CpuConsumer.h b/libs/gui/include/gui/CpuConsumer.h
index 806fbe8..2bba61b 100644
--- a/libs/gui/include/gui/CpuConsumer.h
+++ b/libs/gui/include/gui/CpuConsumer.h
@@ -19,8 +19,9 @@
 
 #include <system/window.h>
 
-#include <gui/ConsumerBase.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueue.h>
+#include <gui/ConsumerBase.h>
 
 #include <utils/Vector.h>
 
@@ -91,8 +92,17 @@
 
     // Create a new CPU consumer. The maxLockedBuffers parameter specifies
     // how many buffers can be locked for user access at the same time.
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    CpuConsumer(size_t maxLockedBuffers, bool controlledByApp = false,
+                bool isConsumerSurfaceFlinger = false);
+
+    CpuConsumer(const sp<IGraphicBufferConsumer>& bq, size_t maxLockedBuffers,
+                bool controlledByApp = false)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+#else
     CpuConsumer(const sp<IGraphicBufferConsumer>& bq,
             size_t maxLockedBuffers, bool controlledByApp = false);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
     // Gets the next graphics buffer from the producer and locks it for CPU use,
     // filling out the passed-in locked buffer structure with the native pointer
diff --git a/libs/gui/include/gui/GLConsumer.h b/libs/gui/include/gui/GLConsumer.h
index ba268ab..bfe3eb3 100644
--- a/libs/gui/include/gui/GLConsumer.h
+++ b/libs/gui/include/gui/GLConsumer.h
@@ -20,6 +20,7 @@
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
 
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueueDefs.h>
 #include <gui/ConsumerBase.h>
 
@@ -82,12 +83,25 @@
     // If the constructor without the tex parameter is used, the GLConsumer is
     // created in a detached state, and attachToContext must be called before
     // calls to updateTexImage.
-    GLConsumer(const sp<IGraphicBufferConsumer>& bq,
-            uint32_t tex, uint32_t texureTarget, bool useFenceSync,
-            bool isControlledByApp);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    GLConsumer(uint32_t tex, uint32_t textureTarget, bool useFenceSync, bool isControlledByApp);
 
-    GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t texureTarget,
-            bool useFenceSync, bool isControlledByApp);
+    GLConsumer(uint32_t textureTarget, bool useFenceSync, bool isControlledByApp);
+
+    GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t tex, uint32_t textureTarget,
+               bool useFenceSync, bool isControlledByApp)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+
+    GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t textureTarget, bool useFenceSync,
+               bool isControlledByApp)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+#else
+    GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t tex, uint32_t textureTarget,
+               bool useFenceSync, bool isControlledByApp);
+
+    GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t textureTarget, bool useFenceSync,
+               bool isControlledByApp);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
     // updateTexImage acquires the most recently queued buffer, and sets the
     // image contents of the target texture to it.
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index eb4a802..1ecc216 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -112,7 +112,7 @@
     /* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
     virtual status_t setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& state,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             InputWindowCommands inputWindowCommands, int64_t desiredPresentTime,
             bool isAutoTimestamp, const std::vector<client_cache_t>& uncacheBuffer,
             bool hasListenerCallbacks, const std::vector<ListenerCallbacks>& listenerCallbacks,
diff --git a/libs/gui/include/gui/ITransactionCompletedListener.h b/libs/gui/include/gui/ITransactionCompletedListener.h
index bc97cd0..014029b 100644
--- a/libs/gui/include/gui/ITransactionCompletedListener.h
+++ b/libs/gui/include/gui/ITransactionCompletedListener.h
@@ -16,8 +16,6 @@
 
 #pragma once
 
-#include "JankInfo.h"
-
 #include <binder/IInterface.h>
 #include <binder/Parcel.h>
 #include <binder/Parcelable.h>
@@ -40,15 +38,10 @@
 class CallbackId : public Parcelable {
 public:
     int64_t id;
-    enum class Type : int32_t {
-        ON_COMPLETE = 0,
-        ON_COMMIT = 1,
-        /*reserved for serialization = 2*/
-    } type;
-    bool includeJankData; // Only respected for ON_COMPLETE callbacks.
+    enum class Type : int32_t { ON_COMPLETE = 0, ON_COMMIT = 1 } type;
 
     CallbackId() {}
-    CallbackId(int64_t id, Type type) : id(id), type(type), includeJankData(false) {}
+    CallbackId(int64_t id, Type type) : id(id), type(type) {}
     status_t writeToParcel(Parcel* output) const override;
     status_t readFromParcel(const Parcel* input) override;
 
@@ -113,29 +106,6 @@
     nsecs_t dequeueReadyTime;
 };
 
-/**
- * Jank information representing SurfaceFlinger's jank classification about frames for a specific
- * surface.
- */
-class JankData : public Parcelable {
-public:
-    status_t writeToParcel(Parcel* output) const override;
-    status_t readFromParcel(const Parcel* input) override;
-
-    JankData();
-    JankData(int64_t frameVsyncId, int32_t jankType, nsecs_t frameIntervalNs)
-          : frameVsyncId(frameVsyncId), jankType(jankType), frameIntervalNs(frameIntervalNs) {}
-
-    // Identifier for the frame submitted with Transaction.setFrameTimelineVsyncId
-    int64_t frameVsyncId;
-
-    // Bitmask of janks that occurred
-    int32_t jankType;
-
-    // Expected duration of the frame
-    nsecs_t frameIntervalNs;
-};
-
 class SurfaceStats : public Parcelable {
 public:
     status_t writeToParcel(Parcel* output) const override;
@@ -145,14 +115,13 @@
     SurfaceStats(const sp<IBinder>& sc, std::variant<nsecs_t, sp<Fence>> acquireTimeOrFence,
                  const sp<Fence>& prevReleaseFence, std::optional<uint32_t> hint,
                  uint32_t currentMaxAcquiredBuffersCount, FrameEventHistoryStats frameEventStats,
-                 std::vector<JankData> jankData, ReleaseCallbackId previousReleaseCallbackId)
+                 ReleaseCallbackId previousReleaseCallbackId)
           : surfaceControl(sc),
             acquireTimeOrFence(std::move(acquireTimeOrFence)),
             previousReleaseFence(prevReleaseFence),
             transformHint(hint),
             currentMaxAcquiredBufferCount(currentMaxAcquiredBuffersCount),
             eventStats(frameEventStats),
-            jankData(std::move(jankData)),
             previousReleaseCallbackId(previousReleaseCallbackId) {}
 
     sp<IBinder> surfaceControl;
@@ -161,7 +130,6 @@
     std::optional<uint32_t> transformHint = 0;
     uint32_t currentMaxAcquiredBufferCount = 0;
     FrameEventHistoryStats eventStats;
-    std::vector<JankData> jankData;
     ReleaseCallbackId previousReleaseCallbackId;
 };
 
diff --git a/libs/gui/include/gui/LayerMetadata.h b/libs/gui/include/gui/LayerMetadata.h
index 9cf62bc..7ee291d 100644
--- a/libs/gui/include/gui/LayerMetadata.h
+++ b/libs/gui/include/gui/LayerMetadata.h
@@ -74,6 +74,7 @@
 } // namespace android::gui
 
 using android::gui::METADATA_ACCESSIBILITY_ID;
+using android::gui::METADATA_CALLING_UID;
 using android::gui::METADATA_DEQUEUE_TIME;
 using android::gui::METADATA_GAME_MODE;
 using android::gui::METADATA_MOUSE_CURSOR;
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index 5f2f8dc..d419945 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -29,10 +29,12 @@
 #include <math/mat4.h>
 
 #include <android/gui/DropInputMode.h>
+#include <android/gui/EdgeExtensionParameters.h>
 #include <android/gui/FocusRequest.h>
 #include <android/gui/TrustedOverlay.h>
 
 #include <ftl/flags.h>
+#include <gui/BufferReleaseChannel.h>
 #include <gui/DisplayCaptureArgs.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/LayerCaptureArgs.h>
@@ -218,6 +220,8 @@
         eTrustedOverlayChanged = 0x4000'00000000,
         eDropInputModeChanged = 0x8000'00000000,
         eExtendedRangeBrightnessChanged = 0x10000'00000000,
+        eEdgeExtensionChanged = 0x20000'00000000,
+        eBufferReleaseChannelChanged = 0x40000'00000000,
     };
 
     layer_state_t();
@@ -241,7 +245,7 @@
             layer_state_t::eCropChanged | layer_state_t::eDestinationFrameChanged |
             layer_state_t::eMatrixChanged | layer_state_t::ePositionChanged |
             layer_state_t::eTransformToDisplayInverseChanged |
-            layer_state_t::eTransparentRegionChanged;
+            layer_state_t::eTransparentRegionChanged | layer_state_t::eEdgeExtensionChanged;
 
     // Buffer and related updates.
     static constexpr uint64_t BUFFER_CHANGES = layer_state_t::eApiChanged |
@@ -393,6 +397,9 @@
     // Stretch effect to be applied to this layer
     StretchEffect stretchEffect;
 
+    // Edge extension effect to be applied to this layer
+    gui::EdgeExtensionParameters edgeExtensionParameters;
+
     Rect bufferCrop;
     Rect destinationFrame;
 
@@ -407,6 +414,8 @@
 
     TrustedPresentationThresholds trustedPresentationThresholds;
     TrustedPresentationListener trustedPresentationListener;
+
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> bufferReleaseChannel;
 };
 
 class ComposerState {
diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index bdcaaf2..39207f8 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h
@@ -18,6 +18,7 @@
 #define ANDROID_GUI_SURFACE_H
 
 #include <android/gui/FrameTimelineInfo.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferQueueDefs.h>
 #include <gui/HdrMetadata.h>
 #include <gui/IGraphicBufferProducer.h>
@@ -33,8 +34,12 @@
 #include <shared_mutex>
 #include <unordered_set>
 
+#include <com_android_graphics_libgui_flags.h>
+
 namespace android {
 
+class GraphicBuffer;
+
 namespace gui {
 class ISurfaceComposer;
 } // namespace gui
@@ -56,6 +61,20 @@
     virtual bool needsReleaseNotify() = 0;
 
     virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) = 0;
+    virtual void onBufferDetached(int slot) = 0;
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+    virtual void onBufferAttached() {}
+    virtual bool needsAttachNotify() { return false; }
+#endif
+};
+
+class StubSurfaceListener : public SurfaceListener {
+public:
+    virtual ~StubSurfaceListener() {}
+    virtual void onBufferReleased() override {}
+    virtual bool needsReleaseNotify() { return false; }
+    virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& /*buffers*/) override {}
+    virtual void onBufferDetached(int /*slot*/) override {}
 };
 
 /*
@@ -154,6 +173,11 @@
      */
     virtual void allocateBuffers();
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // See IGraphicBufferProducer::allowAllocation
+    status_t allowAllocation(bool allowAllocation);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     /* Sets the generation number on the IGraphicBufferProducer and updates the
      * generation number on any buffers attached to the Surface after this call.
      * See IGBP::setGenerationNumber for more information. */
@@ -357,22 +381,15 @@
     virtual int unlockAndPost();
     virtual int query(int what, int* value) const;
 
-    virtual int connect(int api, const sp<IProducerListener>& listener);
-
     // When reportBufferRemoval is true, clients must call getAndFlushRemovedBuffers to fetch
     // GraphicBuffers removed from this surface after a dequeueBuffer, detachNextBuffer or
     // attachBuffer call. This allows clients with their own buffer caches to free up buffers no
     // longer in use by this surface.
-    virtual int connect(
-            int api, const sp<IProducerListener>& listener,
-            bool reportBufferRemoval);
-    virtual int detachNextBuffer(sp<GraphicBuffer>* outBuffer,
-            sp<Fence>* outFence);
+    virtual int connect(int api, const sp<SurfaceListener>& listener,
+                        bool reportBufferRemoval = false);
+    virtual int detachNextBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence);
     virtual int attachBuffer(ANativeWindowBuffer*);
 
-    virtual int connect(
-            int api, bool reportBufferRemoval,
-            const sp<SurfaceListener>& sListener);
     virtual void destroy();
 
     // When client connects to Surface with reportBufferRemoval set to true, any buffers removed
@@ -387,6 +404,20 @@
     static status_t attachAndQueueBufferWithDataspace(Surface* surface, sp<GraphicBuffer> buffer,
                                                       ui::Dataspace dataspace);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // Dequeues a buffer and its outFence, which must be signalled before the buffer can be used.
+    status_t dequeueBuffer(sp<GraphicBuffer>* buffer, sp<Fence>* outFence);
+
+    // Queues a buffer, with an optional fd fence that captures pending work on the buffer. This
+    // buffer must have been returned by dequeueBuffer or associated with this Surface via an
+    // attachBuffer operation.
+    status_t queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd = Fence::NO_FENCE);
+
+    // Detaches this buffer, dissociating it from this Surface. This buffer must have been returned
+    // by queueBuffer or associated with this Surface via an attachBuffer operation.
+    status_t detachBuffer(const sp<GraphicBuffer>& buffer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     // Batch version of dequeueBuffer, cancelBuffer and queueBuffer
     // Note that these batched operations are not supported when shared buffer mode is being used.
     struct BatchBuffer {
@@ -422,7 +453,18 @@
             return mSurfaceListener->needsReleaseNotify();
         }
 
+        virtual void onBufferDetached(int slot) { mSurfaceListener->onBufferDetached(slot); }
+
         virtual void onBuffersDiscarded(const std::vector<int32_t>& slots);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BQ_CONSUMER_ATTACH_CALLBACK)
+        virtual void onBufferAttached() {
+            mSurfaceListener->onBufferAttached();
+        }
+
+        virtual bool needsAttachNotify() {
+            return mSurfaceListener->needsAttachNotify();
+        }
+#endif
     private:
         wp<Surface> mParent;
         sp<SurfaceListener> mSurfaceListener;
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 0862e03..4f9af16 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -35,14 +35,17 @@
 #include <ui/BlurRegion.h>
 #include <ui/ConfigStoreTypes.h>
 #include <ui/DisplayedFrameStats.h>
+#include <ui/EdgeExtensionEffect.h>
 #include <ui/FrameStats.h>
 #include <ui/GraphicTypes.h>
 #include <ui/PixelFormat.h>
 #include <ui/Rotation.h>
 #include <ui/StaticDisplayInfo.h>
 
+#include <android/gui/BnJankListener.h>
 #include <android/gui/ISurfaceComposerClient.h>
 
+#include <gui/BufferReleaseChannel.h>
 #include <gui/CpuConsumer.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/ITransactionCompletedListener.h>
@@ -337,6 +340,8 @@
     static std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>
     getDisplayDecorationSupport(const sp<IBinder>& displayToken);
 
+    static bool flagEdgeExtensionEffectUseShader();
+
     // ------------------------------------------------------------------------
     // surface creation / destruction
 
@@ -447,7 +452,6 @@
 
         uint64_t mId;
 
-        uint32_t mTransactionNestCount = 0;
         bool mAnimation = false;
         bool mEarlyWakeupStart = false;
         bool mEarlyWakeupEnd = false;
@@ -743,11 +747,26 @@
         Transaction& setStretchEffect(const sp<SurfaceControl>& sc,
                                       const StretchEffect& stretchEffect);
 
+        /**
+         * Provides the edge extension effect configured on a container that the
+         * surface is rendered within.
+         * @param sc target surface the edge extension should be applied to
+         * @param effect the corresponding EdgeExtensionParameters to be applied
+         *    to the surface.
+         * @return The transaction being constructed
+         */
+        Transaction& setEdgeExtensionEffect(const sp<SurfaceControl>& sc,
+                                            const gui::EdgeExtensionParameters& effect);
+
         Transaction& setBufferCrop(const sp<SurfaceControl>& sc, const Rect& bufferCrop);
         Transaction& setDestinationFrame(const sp<SurfaceControl>& sc,
                                          const Rect& destinationFrame);
         Transaction& setDropInputMode(const sp<SurfaceControl>& sc, gui::DropInputMode mode);
 
+        Transaction& setBufferReleaseChannel(
+                const sp<SurfaceControl>& sc,
+                const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel);
+
         status_t setDisplaySurface(const sp<IBinder>& token,
                 const sp<IGraphicBufferProducer>& bufferProducer);
 
@@ -864,12 +883,82 @@
 
 // ---------------------------------------------------------------------------
 
-class JankDataListener : public VirtualLightRefBase {
+class JankDataListener;
+
+// Acts as a representative listener to the composer for a single layer and
+// forwards any received jank data to multiple listeners. Will remove itself
+// from the composer only once the last listener is removed.
+class JankDataListenerFanOut : public gui::BnJankListener {
 public:
-    virtual ~JankDataListener() = 0;
-    virtual void onJankDataAvailable(const std::vector<JankData>& jankData) = 0;
+    JankDataListenerFanOut(int32_t layerId) : mLayerId(layerId) {}
+
+    binder::Status onJankData(const std::vector<gui::JankData>& jankData) override;
+
+    static status_t addListener(sp<SurfaceControl> sc, sp<JankDataListener> listener);
+    static status_t removeListener(sp<JankDataListener> listener);
+
+private:
+    std::vector<sp<JankDataListener>> getActiveListeners();
+    bool removeListeners(const std::vector<wp<JankDataListener>>& listeners);
+    int64_t updateAndGetRemovalVSync();
+
+    struct WpJDLHash {
+        std::size_t operator()(const wp<JankDataListener>& listener) const {
+            return std::hash<JankDataListener*>{}(listener.unsafe_get());
+        }
+    };
+
+    std::mutex mMutex;
+    std::unordered_set<wp<JankDataListener>, WpJDLHash> mListeners GUARDED_BY(mMutex);
+    int32_t mLayerId;
+    int64_t mRemoveAfter = -1;
+
+    static std::mutex sFanoutInstanceMutex;
+    static std::unordered_map<int32_t, sp<JankDataListenerFanOut>> sFanoutInstances;
 };
 
+// Base class for client listeners interested in jank classification data from
+// the composer. Subclasses should override onJankDataAvailable and call the add
+// and removal methods to receive jank data.
+class JankDataListener : public virtual RefBase {
+public:
+    JankDataListener() {}
+    virtual ~JankDataListener();
+
+    virtual bool onJankDataAvailable(const std::vector<gui::JankData>& jankData) = 0;
+
+    status_t addListener(sp<SurfaceControl> sc) {
+        if (mLayerId != -1) {
+            removeListener(0);
+            mLayerId = -1;
+        }
+
+        int32_t layerId = sc->getLayerId();
+        status_t status =
+                JankDataListenerFanOut::addListener(std::move(sc),
+                                                    sp<JankDataListener>::fromExisting(this));
+        if (status == OK) {
+            mLayerId = layerId;
+        }
+        return status;
+    }
+
+    status_t removeListener(int64_t afterVsync) {
+        mRemoveAfter = std::max(static_cast<int64_t>(0), afterVsync);
+        return JankDataListenerFanOut::removeListener(sp<JankDataListener>::fromExisting(this));
+    }
+
+    status_t flushJankData();
+
+    friend class JankDataListenerFanOut;
+
+private:
+    int32_t mLayerId = -1;
+    int64_t mRemoveAfter = -1;
+};
+
+// ---------------------------------------------------------------------------
+
 class TransactionCompletedListener : public BnTransactionCompletedListener {
 public:
     TransactionCompletedListener();
@@ -904,7 +993,6 @@
 
     std::unordered_map<CallbackId, CallbackTranslation, CallbackIdHash> mCallbacks
             GUARDED_BY(mMutex);
-    std::multimap<int32_t, sp<JankDataListener>> mJankListeners GUARDED_BY(mMutex);
     std::unordered_map<ReleaseCallbackId, ReleaseBufferCallback, ReleaseBufferCallbackIdHash>
             mReleaseBufferCallbacks GUARDED_BY(mMutex);
 
@@ -927,14 +1015,10 @@
             const std::unordered_set<sp<SurfaceControl>, SurfaceComposerClient::SCHash>&
                     surfaceControls,
             CallbackId::Type callbackType);
-    CallbackId addCallbackFunctionLocked(
-            const TransactionCompletedCallback& callbackFunction,
-            const std::unordered_set<sp<SurfaceControl>, SurfaceComposerClient::SCHash>&
-                    surfaceControls,
-            CallbackId::Type callbackType) REQUIRES(mMutex);
 
-    void addSurfaceControlToCallbacks(SurfaceComposerClient::CallbackInfo& callbackInfo,
-                                      const sp<SurfaceControl>& surfaceControl);
+    void addSurfaceControlToCallbacks(
+            const sp<SurfaceControl>& surfaceControl,
+            const std::unordered_set<CallbackId, CallbackIdHash>& callbackIds);
 
     void addQueueStallListener(std::function<void(const std::string&)> stallListener, void* id);
     void removeQueueStallListener(void *id);
@@ -943,18 +1027,6 @@
             TrustedPresentationCallback tpc, int id, void* context);
     void clearTrustedPresentationCallback(int id);
 
-    /*
-     * Adds a jank listener to be informed about SurfaceFlinger's jank classification for a specific
-     * surface. Jank classifications arrive as part of the transaction callbacks about previous
-     * frames submitted to this Surface.
-     */
-    void addJankListener(const sp<JankDataListener>& listener, sp<SurfaceControl> surfaceControl);
-
-    /**
-     * Removes a jank listener previously added to addJankCallback.
-     */
-    void removeJankListener(const sp<JankDataListener>& listener);
-
     void addSurfaceStatsListener(void* context, void* cookie, sp<SurfaceControl> surfaceControl,
                 SurfaceStatsCallback listener);
     void removeSurfaceStatsListener(void* context, void* cookie);
diff --git a/libs/gui/libgui_flags.aconfig b/libs/gui/libgui_flags.aconfig
index 87cef08..c367e75 100644
--- a/libs/gui/libgui_flags.aconfig
+++ b/libs/gui/libgui_flags.aconfig
@@ -43,3 +43,51 @@
     purpose: PURPOSE_BUGFIX
   }
 } # trace_frame_rate_override
+
+flag {
+  name: "wb_consumer_base_owns_bq"
+  namespace: "core_graphics"
+  description: "ConsumerBase-based classes now own their own bufferqueue"
+  bug: "340933754"
+  is_fixed_read_only: true
+} # wb_consumer_base_owns_bq
+
+flag {
+  name: "wb_platform_api_improvements"
+  namespace: "core_graphics"
+  description: "Simple improvements to Surface and ConsumerBase classes"
+  bug: "340933794"
+  is_fixed_read_only: true
+} # wb_platform_api_improvements
+
+flag {
+    name: "wb_stream_splitter"
+    namespace: "core_graphics"
+    description: "Removes IGBP/IGBCs from Camera3StreamSplitter as part of BufferQueue refactors"
+    bug: "340933206"
+    is_fixed_read_only: true
+} # wb_stream_splitter
+
+flag {
+  name: "edge_extension_shader"
+  namespace: "windowing_frontend"
+  description: "Enable edge extension via shader"
+  bug: "322036393"
+  is_fixed_read_only: true
+} # edge_extension_shader
+
+flag {
+  name: "buffer_release_channel"
+  namespace: "window_surfaces"
+  description: "Enable BufferReleaseChannel to optimize buffer releases"
+  bug: "294133380"
+  is_fixed_read_only: true
+} # buffer_release_channel
+
+flag {
+  name: "wb_ring_buffer"
+  namespace: "core_graphics"
+  description: "Remove slot dependency in the Ring Buffer Consumer."
+  bug: "342197847"
+  is_fixed_read_only: true
+} # wb_ring_buffer
diff --git a/libs/gui/tests/Android.bp b/libs/gui/tests/Android.bp
index ea8acbb..1b216e9 100644
--- a/libs/gui/tests/Android.bp
+++ b/libs/gui/tests/Android.bp
@@ -25,6 +25,8 @@
         "-Wthread-safety",
         "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_BQ_SETFRAMERATE=true",
         "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_BQ_EXTENDEDALLOCATE=true",
+        "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_WB_CONSUMER_BASE_OWNS_BQ=true",
+        "-DCOM_ANDROID_GRAPHICS_LIBGUI_FLAGS_WB_PLATFORM_API_IMPROVEMENTS=true",
     ],
 
     srcs: [
@@ -32,6 +34,7 @@
         "BLASTBufferQueue_test.cpp",
         "BufferItemConsumer_test.cpp",
         "BufferQueue_test.cpp",
+        "BufferReleaseChannel_test.cpp",
         "Choreographer_test.cpp",
         "CompositorTiming_test.cpp",
         "CpuConsumer_test.cpp",
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index 946ff05..6852589 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -1269,6 +1269,20 @@
     }
 };
 
+class TestSurfaceListener : public SurfaceListener {
+public:
+    sp<IGraphicBufferProducer> mIgbp;
+    TestSurfaceListener(const sp<IGraphicBufferProducer>& igbp) : mIgbp(igbp) {}
+    void onBufferReleased() override {
+        sp<GraphicBuffer> buffer;
+        sp<Fence> fence;
+        mIgbp->detachNextBuffer(&buffer, &fence);
+    }
+    bool needsReleaseNotify() override { return true; }
+    void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& /*buffers*/) override {}
+    void onBufferDetached(int /*slot*/) {}
+};
+
 TEST_F(BLASTBufferQueueTest, CustomProducerListener) {
     BLASTBufferQueueHelper adapter(mSurfaceControl, mDisplayWidth, mDisplayHeight);
     sp<IGraphicBufferProducer> igbProducer = adapter.getIGraphicBufferProducer();
@@ -1327,7 +1341,7 @@
     ASSERT_EQ(ui::Transform::ROT_0, static_cast<ui::Transform::RotationFlags>(transformHint));
 
     ASSERT_EQ(NO_ERROR,
-              surface->connect(NATIVE_WINDOW_API_CPU, new TestProducerListener(igbProducer)));
+              surface->connect(NATIVE_WINDOW_API_CPU, new TestSurfaceListener(igbProducer)));
 
     // After connecting to the surface, we should get the correct hint.
     surface->query(NATIVE_WINDOW_TRANSFORM_HINT, &transformHint);
diff --git a/libs/gui/tests/BufferItemConsumer_test.cpp b/libs/gui/tests/BufferItemConsumer_test.cpp
index 6880678..845a1ca 100644
--- a/libs/gui/tests/BufferItemConsumer_test.cpp
+++ b/libs/gui/tests/BufferItemConsumer_test.cpp
@@ -17,10 +17,12 @@
 #define LOG_TAG "BufferItemConsumer_test"
 //#define LOG_NDEBUG 0
 
+#include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <gui/BufferItemConsumer.h>
 #include <gui/IProducerListener.h>
 #include <gui/Surface.h>
+#include <ui/GraphicBuffer.h>
 
 namespace android {
 
@@ -42,16 +44,26 @@
         BufferItemConsumerTest* mTest;
     };
 
+    struct TrackingProducerListener : public BnProducerListener {
+        TrackingProducerListener(BufferItemConsumerTest* test) : mTest(test) {}
+
+        virtual void onBufferReleased() override {}
+        virtual bool needsReleaseNotify() override { return true; }
+        virtual void onBuffersDiscarded(const std::vector<int32_t>&) override {}
+        virtual void onBufferDetached(int slot) override { mTest->HandleBufferDetached(slot); }
+
+        BufferItemConsumerTest* mTest;
+    };
+
     void SetUp() override {
-        BufferQueue::createBufferQueue(&mProducer, &mConsumer);
-        mBIC =
-            new BufferItemConsumer(mConsumer, kFormat, kMaxLockedBuffers, true);
+        mBIC = new BufferItemConsumer(kFormat, kMaxLockedBuffers, true);
         String8 name("BufferItemConsumer_Under_Test");
         mBIC->setName(name);
         mBFL = new BufferFreedListener(this);
         mBIC->setBufferFreedListener(mBFL);
 
-        sp<IProducerListener> producerListener = new StubProducerListener();
+        sp<IProducerListener> producerListener = new TrackingProducerListener(this);
+        mProducer = mBIC->getSurface()->getIGraphicBufferProducer();
         IGraphicBufferProducer::QueueBufferOutput bufferOutput;
         ASSERT_EQ(NO_ERROR,
                   mProducer->connect(producerListener, NATIVE_WINDOW_API_CPU,
@@ -71,6 +83,13 @@
         ALOGD("HandleBufferFreed, mFreedBufferCount=%d", mFreedBufferCount);
     }
 
+    void HandleBufferDetached(int slot) {
+        std::lock_guard<std::mutex> lock(mMutex);
+        mDetachedBufferSlots.push_back(slot);
+        ALOGD("HandleBufferDetached, slot=%d mDetachedBufferSlots-count=%zu", slot,
+              mDetachedBufferSlots.size());
+    }
+
     void DequeueBuffer(int* outSlot) {
         ASSERT_NE(outSlot, nullptr);
 
@@ -120,6 +139,7 @@
 
     std::mutex mMutex;
     int mFreedBufferCount{0};
+    std::vector<int> mDetachedBufferSlots = {};
 
     sp<BufferItemConsumer> mBIC;
     sp<BufferFreedListener> mBFL;
@@ -203,4 +223,19 @@
     ASSERT_EQ(1, GetFreedBufferCount());
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+// Test that delete BufferItemConsumer triggers onBufferFreed.
+TEST_F(BufferItemConsumerTest, DetachBufferWithBuffer) {
+    int slot;
+    // Let buffer go through the cycle at least once.
+    DequeueBuffer(&slot);
+    QueueBuffer(slot);
+    AcquireBuffer(&slot);
+
+    sp<GraphicBuffer> buffer = mBuffers[slot];
+    EXPECT_EQ(OK, mBIC->detachBuffer(buffer));
+    EXPECT_THAT(mDetachedBufferSlots, testing::ElementsAre(slot));
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 }  // namespace android
diff --git a/libs/gui/tests/BufferQueue_test.cpp b/libs/gui/tests/BufferQueue_test.cpp
index 590e2c8..2e6ffcb 100644
--- a/libs/gui/tests/BufferQueue_test.cpp
+++ b/libs/gui/tests/BufferQueue_test.cpp
@@ -1430,19 +1430,15 @@
 }
 
 struct BufferItemConsumerSetFrameRateListener : public BufferItemConsumer {
-    BufferItemConsumerSetFrameRateListener(const sp<IGraphicBufferConsumer>& consumer)
-          : BufferItemConsumer(consumer, GRALLOC_USAGE_SW_READ_OFTEN, 1) {}
+    BufferItemConsumerSetFrameRateListener() : BufferItemConsumer(GRALLOC_USAGE_SW_READ_OFTEN, 1) {}
 
     MOCK_METHOD(void, onSetFrameRate, (float, int8_t, int8_t), (override));
 };
 
 TEST_F(BufferQueueTest, TestSetFrameRate) {
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-
     sp<BufferItemConsumerSetFrameRateListener> bufferConsumer =
-            sp<BufferItemConsumerSetFrameRateListener>::make(consumer);
+            sp<BufferItemConsumerSetFrameRateListener>::make();
+    sp<IGraphicBufferProducer> producer = bufferConsumer->getSurface()->getIGraphicBufferProducer();
 
     EXPECT_CALL(*bufferConsumer, onSetFrameRate(12.34f, 1, 0)).Times(1);
     producer->setFrameRate(12.34f, 1, 0);
@@ -1493,14 +1489,10 @@
 
 // See b/270004534
 TEST(BufferQueueThreading, TestProducerDequeueConsumerDestroy) {
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-
     sp<BufferItemConsumer> bufferConsumer =
-            sp<BufferItemConsumer>::make(consumer, GRALLOC_USAGE_SW_READ_OFTEN, 2);
+            sp<BufferItemConsumer>::make(GRALLOC_USAGE_SW_READ_OFTEN, 2);
     ASSERT_NE(nullptr, bufferConsumer.get());
-    sp<Surface> surface = sp<Surface>::make(producer);
+    sp<Surface> surface = bufferConsumer->getSurface();
     native_window_set_buffers_format(surface.get(), PIXEL_FORMAT_RGBA_8888);
     native_window_set_buffers_dimensions(surface.get(), 100, 100);
 
@@ -1531,14 +1523,10 @@
 }
 
 TEST_F(BufferQueueTest, TestAdditionalOptions) {
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-
     sp<BufferItemConsumer> bufferConsumer =
-            sp<BufferItemConsumer>::make(consumer, GRALLOC_USAGE_SW_READ_OFTEN, 2);
+            sp<BufferItemConsumer>::make(GRALLOC_USAGE_SW_READ_OFTEN, 2);
     ASSERT_NE(nullptr, bufferConsumer.get());
-    sp<Surface> surface = sp<Surface>::make(producer);
+    sp<Surface> surface = bufferConsumer->getSurface();
     native_window_set_buffers_format(surface.get(), PIXEL_FORMAT_RGBA_8888);
     native_window_set_buffers_dimensions(surface.get(), 100, 100);
 
diff --git a/libs/gui/tests/BufferReleaseChannel_test.cpp b/libs/gui/tests/BufferReleaseChannel_test.cpp
new file mode 100644
index 0000000..11d122b
--- /dev/null
+++ b/libs/gui/tests/BufferReleaseChannel_test.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string>
+#include <vector>
+
+#include <gtest/gtest.h>
+#include <gui/BufferReleaseChannel.h>
+
+using namespace std::string_literals;
+using android::gui::BufferReleaseChannel;
+
+namespace android {
+
+namespace {
+
+// Helper function to check if two file descriptors point to the same file.
+bool is_same_file(int fd1, int fd2) {
+    struct stat stat1;
+    if (fstat(fd1, &stat1) != 0) {
+        return false;
+    }
+    struct stat stat2;
+    if (fstat(fd2, &stat2) != 0) {
+        return false;
+    }
+    return (stat1.st_dev == stat2.st_dev) && (stat1.st_ino == stat2.st_ino);
+}
+
+} // namespace
+
+TEST(BufferReleaseChannelTest, MessageFlattenable) {
+    ReleaseCallbackId releaseCallbackId{1, 2};
+    sp<Fence> releaseFence = sp<Fence>::make(memfd_create("fake-fence-fd", 0));
+    uint32_t maxAcquiredBufferCount = 5;
+
+    std::vector<uint8_t> dataBuffer;
+    std::vector<int> fdBuffer;
+
+    // Verify that we can flatten a message
+    {
+        BufferReleaseChannel::Message message{releaseCallbackId, releaseFence,
+                                              maxAcquiredBufferCount};
+
+        dataBuffer.resize(message.getFlattenedSize());
+        void* dataPtr = dataBuffer.data();
+        size_t dataSize = dataBuffer.size();
+
+        fdBuffer.resize(message.getFdCount());
+        int* fdPtr = fdBuffer.data();
+        size_t fdSize = fdBuffer.size();
+
+        ASSERT_EQ(OK, message.flatten(dataPtr, dataSize, fdPtr, fdSize));
+
+        // Fence's unique_fd uses fdsan to check ownership of the file descriptor. Normally the file
+        // descriptor is passed through the Unix socket and duplicated (and sent to another process)
+        // so there's no problem with duplicate file descriptor ownership. For this unit test, we
+        // need to set up a duplicate file descriptor to avoid crashing due to duplicate ownership.
+        ASSERT_EQ(releaseFence->get(), fdBuffer[0]);
+        fdBuffer[0] = message.releaseFence->dup();
+    }
+
+    // Verify that we can unflatten a message
+    {
+        BufferReleaseChannel::Message message;
+
+        const void* dataPtr = dataBuffer.data();
+        size_t dataSize = dataBuffer.size();
+
+        const int* fdPtr = fdBuffer.data();
+        size_t fdSize = fdBuffer.size();
+
+        ASSERT_EQ(OK, message.unflatten(dataPtr, dataSize, fdPtr, fdSize));
+        ASSERT_EQ(releaseCallbackId, message.releaseCallbackId);
+        ASSERT_TRUE(is_same_file(releaseFence->get(), message.releaseFence->get()));
+        ASSERT_EQ(maxAcquiredBufferCount, message.maxAcquiredBufferCount);
+    }
+}
+
+// Verify that the BufferReleaseChannel consume returns WOULD_BLOCK when there's no message
+// available.
+TEST(BufferReleaseChannelTest, ConsumerEndpointIsNonBlocking) {
+    std::unique_ptr<BufferReleaseChannel::ConsumerEndpoint> consumer;
+    std::shared_ptr<BufferReleaseChannel::ProducerEndpoint> producer;
+    ASSERT_EQ(OK, BufferReleaseChannel::open("test-channel"s, consumer, producer));
+
+    ReleaseCallbackId releaseCallbackId;
+    sp<Fence> releaseFence;
+    uint32_t maxAcquiredBufferCount;
+    ASSERT_EQ(WOULD_BLOCK,
+              consumer->readReleaseFence(releaseCallbackId, releaseFence, maxAcquiredBufferCount));
+}
+
+// Verify that we can write a message to the BufferReleaseChannel producer and read that message
+// using the BufferReleaseChannel consumer.
+TEST(BufferReleaseChannelTest, ProduceAndConsume) {
+    std::unique_ptr<BufferReleaseChannel::ConsumerEndpoint> consumer;
+    std::shared_ptr<BufferReleaseChannel::ProducerEndpoint> producer;
+    ASSERT_EQ(OK, BufferReleaseChannel::open("test-channel"s, consumer, producer));
+
+    sp<Fence> fence = sp<Fence>::make(memfd_create("fake-fence-fd", 0));
+
+    for (uint64_t i = 0; i < 64; i++) {
+        ReleaseCallbackId producerId{i, i + 1};
+        uint32_t maxAcquiredBufferCount = i + 2;
+        ASSERT_EQ(OK, producer->writeReleaseFence(producerId, fence, maxAcquiredBufferCount));
+    }
+
+    for (uint64_t i = 0; i < 64; i++) {
+        ReleaseCallbackId expectedId{i, i + 1};
+        uint32_t expectedMaxAcquiredBufferCount = i + 2;
+
+        ReleaseCallbackId consumerId;
+        sp<Fence> consumerFence;
+        uint32_t maxAcquiredBufferCount;
+        ASSERT_EQ(OK,
+                  consumer->readReleaseFence(consumerId, consumerFence, maxAcquiredBufferCount));
+
+        ASSERT_EQ(expectedId, consumerId);
+        ASSERT_TRUE(is_same_file(fence->get(), consumerFence->get()));
+        ASSERT_EQ(expectedMaxAcquiredBufferCount, maxAcquiredBufferCount);
+    }
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/libs/gui/tests/CpuConsumer_test.cpp b/libs/gui/tests/CpuConsumer_test.cpp
index d80bd9c..f4239cb 100644
--- a/libs/gui/tests/CpuConsumer_test.cpp
+++ b/libs/gui/tests/CpuConsumer_test.cpp
@@ -66,13 +66,10 @@
                 test_info->name(),
                 params.width, params.height,
                 params.maxLockedBuffers, params.format);
-        sp<IGraphicBufferProducer> producer;
-        sp<IGraphicBufferConsumer> consumer;
-        BufferQueue::createBufferQueue(&producer, &consumer);
-        mCC = new CpuConsumer(consumer, params.maxLockedBuffers);
+        mCC = new CpuConsumer(params.maxLockedBuffers);
         String8 name("CpuConsumer_Under_Test");
         mCC->setName(name);
-        mSTC = new Surface(producer);
+        mSTC = mCC->getSurface();
         mANW = mSTC;
     }
 
diff --git a/libs/gui/tests/MultiTextureConsumer_test.cpp b/libs/gui/tests/MultiTextureConsumer_test.cpp
index 7d3d4aa..2428bb3 100644
--- a/libs/gui/tests/MultiTextureConsumer_test.cpp
+++ b/libs/gui/tests/MultiTextureConsumer_test.cpp
@@ -34,12 +34,8 @@
 
     virtual void SetUp() {
         GLTest::SetUp();
-        sp<IGraphicBufferProducer> producer;
-        sp<IGraphicBufferConsumer> consumer;
-        BufferQueue::createBufferQueue(&producer, &consumer);
-        mGlConsumer = new GLConsumer(consumer, TEX_ID,
-                GLConsumer::TEXTURE_EXTERNAL, true, false);
-        mSurface = new Surface(producer);
+        mGlConsumer = new GLConsumer(TEX_ID, GLConsumer::TEXTURE_EXTERNAL, true, false);
+        mSurface = mGlConsumer->getSurface();
         mANW = mSurface.get();
 
     }
diff --git a/libs/gui/tests/SurfaceTextureClient_test.cpp b/libs/gui/tests/SurfaceTextureClient_test.cpp
index b28dca8..59d05b6 100644
--- a/libs/gui/tests/SurfaceTextureClient_test.cpp
+++ b/libs/gui/tests/SurfaceTextureClient_test.cpp
@@ -40,12 +40,8 @@
     }
 
     virtual void SetUp() {
-        sp<IGraphicBufferProducer> producer;
-        sp<IGraphicBufferConsumer> consumer;
-        BufferQueue::createBufferQueue(&producer, &consumer);
-        mST = new GLConsumer(consumer, 123, GLConsumer::TEXTURE_EXTERNAL, true,
-                false);
-        mSTC = new Surface(producer);
+        mST = new GLConsumer(123, GLConsumer::TEXTURE_EXTERNAL, true, false);
+        mSTC = mST->getSurface();
         mANW = mSTC;
 
         // We need a valid GL context so we can test updateTexImage()
@@ -731,12 +727,8 @@
         ASSERT_NE(EGL_NO_CONTEXT, mEglContext);
 
         for (int i = 0; i < NUM_SURFACE_TEXTURES; i++) {
-            sp<IGraphicBufferProducer> producer;
-            sp<IGraphicBufferConsumer> consumer;
-            BufferQueue::createBufferQueue(&producer, &consumer);
-            sp<GLConsumer> st(new GLConsumer(consumer, i,
-                    GLConsumer::TEXTURE_EXTERNAL, true, false));
-            sp<Surface> stc(new Surface(producer));
+            sp<GLConsumer> st(new GLConsumer(i, GLConsumer::TEXTURE_EXTERNAL, true, false));
+            sp<Surface> stc = st->getSurface();
             mEglSurfaces[i] = eglCreateWindowSurface(mEglDisplay, myConfig,
                     static_cast<ANativeWindow*>(stc.get()), nullptr);
             ASSERT_EQ(EGL_SUCCESS, eglGetError());
diff --git a/libs/gui/tests/SurfaceTextureGL.h b/libs/gui/tests/SurfaceTextureGL.h
index 9d8af5d..1309635 100644
--- a/libs/gui/tests/SurfaceTextureGL.h
+++ b/libs/gui/tests/SurfaceTextureGL.h
@@ -38,11 +38,8 @@
 
     void SetUp() {
         GLTest::SetUp();
-        sp<IGraphicBufferProducer> producer;
-        BufferQueue::createBufferQueue(&producer, &mConsumer);
-        mST = new GLConsumer(mConsumer, TEX_ID, GLConsumer::TEXTURE_EXTERNAL,
-                true, false);
-        mSTC = new Surface(producer);
+        mST = new GLConsumer(TEX_ID, GLConsumer::TEXTURE_EXTERNAL, true, false);
+        mSTC = mST->getSurface();
         mANW = mSTC;
         ASSERT_EQ(NO_ERROR, native_window_set_usage(mANW.get(), TEST_PRODUCER_USAGE_BITS));
         mTextureRenderer = new TextureRenderer(TEX_ID, mST);
@@ -63,7 +60,6 @@
         mTextureRenderer->drawTexture();
     }
 
-    sp<IGraphicBufferConsumer> mConsumer;
     sp<GLConsumer> mST;
     sp<Surface> mSTC;
     sp<ANativeWindow> mANW;
diff --git a/libs/gui/tests/SurfaceTextureGL_test.cpp b/libs/gui/tests/SurfaceTextureGL_test.cpp
index f76c0be..449533a 100644
--- a/libs/gui/tests/SurfaceTextureGL_test.cpp
+++ b/libs/gui/tests/SurfaceTextureGL_test.cpp
@@ -480,8 +480,8 @@
     };
 
     sp<DisconnectWaiter> dw(new DisconnectWaiter());
-    mConsumer->consumerConnect(dw, false);
-
+    sp<IGraphicBufferConsumer> consumer = mST->getIGraphicBufferConsumer();
+    consumer->consumerConnect(dw, false);
 
     sp<Thread> pt(new ProducerThread(mANW));
     pt->run("ProducerThread");
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 43cd0f8..8ab8783 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -23,25 +23,33 @@
 #include <android/gui/IDisplayEventConnection.h>
 #include <android/gui/ISurfaceComposer.h>
 #include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
+#include <android/hardware_buffer.h>
 #include <binder/ProcessState.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <configstore/Utils.h>
 #include <gui/AidlStatusUtil.h>
 #include <gui/BufferItemConsumer.h>
-#include <gui/IProducerListener.h>
+#include <gui/BufferQueue.h>
+#include <gui/CpuConsumer.h>
+#include <gui/IConsumerListener.h>
+#include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 #include <gui/SyncScreenCaptureListener.h>
-#include <inttypes.h>
 #include <private/gui/ComposerService.h>
 #include <private/gui/ComposerServiceAIDL.h>
 #include <sys/types.h>
+#include <system/window.h>
 #include <ui/BufferQueueDefs.h>
 #include <ui/DisplayMode.h>
+#include <ui/GraphicBuffer.h>
 #include <ui/Rect.h>
 #include <utils/Errors.h>
 #include <utils/String8.h>
 
+#include <cstddef>
 #include <limits>
 #include <thread>
 
@@ -82,7 +90,7 @@
     virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>& buffers) {
         mDiscardedBuffers.insert(mDiscardedBuffers.end(), buffers.begin(), buffers.end());
     }
-
+    virtual void onBufferDetached(int /*slot*/) {}
     int getReleaseNotifyCount() const {
         return mBuffersReleased;
     }
@@ -143,10 +151,10 @@
         if (hasSurfaceListener) {
             listener = new FakeSurfaceListener(enableReleasedCb);
         }
-        ASSERT_EQ(OK, surface->connect(
-                NATIVE_WINDOW_API_CPU,
-                /*reportBufferRemoval*/true,
-                /*listener*/listener));
+        ASSERT_EQ(OK,
+                  surface->connect(NATIVE_WINDOW_API_CPU,
+                                   /*listener*/ listener,
+                                   /*reportBufferRemoval*/ true));
         const int BUFFER_COUNT = 4 + extraDiscardedBuffers;
         ASSERT_EQ(NO_ERROR, native_window_set_buffer_count(window.get(), BUFFER_COUNT));
         ASSERT_EQ(NO_ERROR, native_window_set_usage(window.get(), TEST_PRODUCER_USAGE_BITS));
@@ -264,13 +272,9 @@
 TEST_F(SurfaceTest, QueryConsumerUsage) {
     const int TEST_USAGE_FLAGS =
             GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_HW_RENDER;
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    sp<BufferItemConsumer> c = new BufferItemConsumer(consumer,
-            TEST_USAGE_FLAGS);
-    sp<Surface> s = new Surface(producer);
+    sp<BufferItemConsumer> c = new BufferItemConsumer(TEST_USAGE_FLAGS);
 
+    sp<Surface> s = c->getSurface();
     sp<ANativeWindow> anw(s);
 
     int flags = -1;
@@ -282,15 +286,11 @@
 
 TEST_F(SurfaceTest, QueryDefaultBuffersDataSpace) {
     const android_dataspace TEST_DATASPACE = HAL_DATASPACE_V0_SRGB;
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    sp<CpuConsumer> cpuConsumer = new CpuConsumer(consumer, 1);
 
+    sp<CpuConsumer> cpuConsumer = new CpuConsumer(1);
     cpuConsumer->setDefaultBufferDataSpace(TEST_DATASPACE);
 
-    sp<Surface> s = new Surface(producer);
-
+    sp<Surface> s = cpuConsumer->getSurface();
     sp<ANativeWindow> anw(s);
 
     android_dataspace dataSpace;
@@ -303,11 +303,8 @@
 }
 
 TEST_F(SurfaceTest, SettingGenerationNumber) {
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    sp<CpuConsumer> cpuConsumer = new CpuConsumer(consumer, 1);
-    sp<Surface> surface = new Surface(producer);
+    sp<CpuConsumer> cpuConsumer = new CpuConsumer(1);
+    sp<Surface> surface = cpuConsumer->getSurface();
     sp<ANativeWindow> window(surface);
 
     // Allocate a buffer with a generation number of 0
@@ -491,11 +488,11 @@
 
     sp<Surface> surface = new Surface(producer);
     sp<ANativeWindow> window(surface);
-    sp<StubProducerListener> listener = new StubProducerListener();
-    ASSERT_EQ(OK, surface->connect(
-            NATIVE_WINDOW_API_CPU,
-            /*listener*/listener,
-            /*reportBufferRemoval*/true));
+    sp<StubSurfaceListener> listener = new StubSurfaceListener();
+    ASSERT_EQ(OK,
+              surface->connect(NATIVE_WINDOW_API_CPU,
+                               /*listener*/ listener,
+                               /*reportBufferRemoval*/ true));
     const int BUFFER_COUNT = 4;
     ASSERT_EQ(NO_ERROR, native_window_set_buffer_count(window.get(), BUFFER_COUNT));
     ASSERT_EQ(NO_ERROR, native_window_set_usage(window.get(), TEST_PRODUCER_USAGE_BITS));
@@ -636,7 +633,7 @@
 
     status_t setTransactionState(
             const FrameTimelineInfo& /*frameTimelineInfo*/, Vector<ComposerState>& /*state*/,
-            const Vector<DisplayState>& /*displays*/, uint32_t /*flags*/,
+            Vector<DisplayState>& /*displays*/, uint32_t /*flags*/,
             const sp<IBinder>& /*applyToken*/, InputWindowCommands /*inputWindowCommands*/,
             int64_t /*desiredPresentTime*/, bool /*isAutoTimestamp*/,
             const std::vector<client_cache_t>& /*cachedBuffer*/, bool /*hasListenerCallbacks*/,
@@ -987,6 +984,19 @@
 
     binder::Status notifyShutdown() override { return binder::Status::ok(); }
 
+    binder::Status addJankListener(const sp<IBinder>& /*layer*/,
+                                   const sp<gui::IJankListener>& /*listener*/) override {
+        return binder::Status::ok();
+    }
+
+    binder::Status flushJankData(int32_t /*layerId*/) override { return binder::Status::ok(); }
+
+    binder::Status removeJankListener(int32_t /*layerId*/,
+                                      const sp<gui::IJankListener>& /*listener*/,
+                                      int64_t /*afterVsync*/) override {
+        return binder::Status::ok();
+    }
+
 protected:
     IBinder* onAsBinder() override { return nullptr; }
 
@@ -2134,14 +2144,11 @@
 TEST_F(SurfaceTest, BatchOperations) {
     const int BUFFER_COUNT = 16;
     const int BATCH_SIZE = 8;
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
 
-    sp<CpuConsumer> cpuConsumer = new CpuConsumer(consumer, 1);
-    sp<Surface> surface = new Surface(producer);
+    sp<CpuConsumer> cpuConsumer = new CpuConsumer(1);
+    sp<Surface> surface = cpuConsumer->getSurface();
     sp<ANativeWindow> window(surface);
-    sp<StubProducerListener> listener = new StubProducerListener();
+    sp<StubSurfaceListener> listener = new StubSurfaceListener();
 
     ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, /*listener*/listener,
             /*reportBufferRemoval*/false));
@@ -2186,14 +2193,11 @@
 TEST_F(SurfaceTest, BatchIllegalOperations) {
     const int BUFFER_COUNT = 16;
     const int BATCH_SIZE = 8;
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
 
-    sp<CpuConsumer> cpuConsumer = new CpuConsumer(consumer, 1);
-    sp<Surface> surface = new Surface(producer);
+    sp<CpuConsumer> cpuConsumer = new CpuConsumer(1);
+    sp<Surface> surface = cpuConsumer->getSurface();
     sp<ANativeWindow> window(surface);
-    sp<StubProducerListener> listener = new StubProducerListener();
+    sp<StubSurfaceListener> listener = new StubSurfaceListener();
 
     ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, /*listener*/listener,
             /*reportBufferRemoval*/false));
@@ -2213,4 +2217,152 @@
     ASSERT_EQ(NO_ERROR, surface->disconnect(NATIVE_WINDOW_API_CPU));
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
+TEST_F(SurfaceTest, PlatformBufferMethods) {
+    sp<CpuConsumer> cpuConsumer = sp<CpuConsumer>::make(1);
+    sp<Surface> surface = cpuConsumer->getSurface();
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+
+    EXPECT_EQ(OK,
+              surface->connect(NATIVE_WINDOW_API_CPU, listener, /* reportBufferRemoval */ false));
+
+    //
+    // Verify nullptrs are handled safely:
+    //
+
+    EXPECT_EQ(BAD_VALUE, surface->dequeueBuffer((sp<GraphicBuffer>*)nullptr, nullptr));
+    EXPECT_EQ(BAD_VALUE, surface->dequeueBuffer((sp<GraphicBuffer>*)nullptr, &fence));
+    EXPECT_EQ(BAD_VALUE, surface->dequeueBuffer(&buffer, nullptr));
+    EXPECT_EQ(BAD_VALUE, surface->queueBuffer(nullptr, nullptr));
+    EXPECT_EQ(BAD_VALUE, surface->detachBuffer(nullptr));
+
+    //
+    // Verify dequeue/queue:
+    //
+
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_NE(nullptr, buffer);
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence));
+
+    //
+    // Verify dequeue/detach:
+    //
+
+    wp<GraphicBuffer> weakBuffer;
+    {
+        EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+
+        EXPECT_EQ(OK, surface->detachBuffer(buffer));
+
+        weakBuffer = buffer;
+        buffer = nullptr;
+    }
+    EXPECT_EQ(nullptr, weakBuffer.promote()) << "Weak buffer still held by Surface.";
+
+    //
+    // Verify detach without borrowing the buffer does not work:
+    //
+
+    sp<GraphicBuffer> heldTooLongBuffer;
+    EXPECT_EQ(OK, surface->dequeueBuffer(&heldTooLongBuffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(heldTooLongBuffer));
+    EXPECT_EQ(BAD_VALUE, surface->detachBuffer(heldTooLongBuffer));
+}
+
+TEST_F(SurfaceTest, AllowAllocation) {
+    // controlledByApp must be true to disable blocking
+    sp<CpuConsumer> cpuConsumer = sp<CpuConsumer>::make(1, /*controlledByApp*/ true);
+    sp<Surface> surface = cpuConsumer->getSurface();
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+
+    EXPECT_EQ(OK,
+              surface->connect(NATIVE_WINDOW_API_CPU, listener, /* reportBufferRemoval */ false));
+    EXPECT_EQ(OK, surface->allowAllocation(false));
+
+    EXPECT_EQ(OK, surface->setDequeueTimeout(-1));
+    EXPECT_EQ(WOULD_BLOCK, surface->dequeueBuffer(&buffer, &fence));
+
+    EXPECT_EQ(OK, surface->setDequeueTimeout(10));
+    EXPECT_EQ(TIMED_OUT, surface->dequeueBuffer(&buffer, &fence));
+
+    EXPECT_EQ(OK, surface->allowAllocation(true));
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+}
+
+TEST_F(SurfaceTest, QueueAcquireReleaseDequeue_CalledInStack_DoesNotDeadlock) {
+    class DequeuingSurfaceListener : public SurfaceListener {
+    public:
+        DequeuingSurfaceListener(const wp<Surface>& surface) : mSurface(surface) {}
+
+        virtual void onBufferReleased() override {
+            sp<Surface> surface = mSurface.promote();
+            ASSERT_NE(nullptr, surface);
+            EXPECT_EQ(OK, surface->dequeueBuffer(&mBuffer, &mFence));
+        }
+
+        virtual bool needsReleaseNotify() override { return true; }
+        virtual void onBuffersDiscarded(const std::vector<sp<GraphicBuffer>>&) override {}
+        virtual void onBufferDetached(int) override {}
+
+        sp<GraphicBuffer> mBuffer;
+        sp<Fence> mFence;
+
+    private:
+        wp<Surface> mSurface;
+    };
+
+    class ImmediateReleaseConsumerListener : public BufferItemConsumer::FrameAvailableListener {
+    public:
+        ImmediateReleaseConsumerListener(const wp<BufferItemConsumer>& consumer)
+              : mConsumer(consumer) {}
+
+        virtual void onFrameAvailable(const BufferItem&) override {
+            sp<BufferItemConsumer> consumer = mConsumer.promote();
+            ASSERT_NE(nullptr, consumer);
+
+            mCalls += 1;
+
+            BufferItem buffer;
+            EXPECT_EQ(OK, consumer->acquireBuffer(&buffer, 0));
+            EXPECT_EQ(OK, consumer->releaseBuffer(buffer));
+        }
+
+        size_t mCalls = 0;
+
+    private:
+        wp<BufferItemConsumer> mConsumer;
+    };
+
+    sp<IGraphicBufferProducer> bqProducer;
+    sp<IGraphicBufferConsumer> bqConsumer;
+    BufferQueue::createBufferQueue(&bqProducer, &bqConsumer);
+
+    sp<BufferItemConsumer> consumer = sp<BufferItemConsumer>::make(bqConsumer, 3);
+    sp<Surface> surface = sp<Surface>::make(bqProducer);
+    sp<ImmediateReleaseConsumerListener> consumerListener =
+            sp<ImmediateReleaseConsumerListener>::make(consumer);
+    consumer->setFrameAvailableListener(consumerListener);
+
+    sp<DequeuingSurfaceListener> surfaceListener = sp<DequeuingSurfaceListener>::make(surface);
+    EXPECT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, surfaceListener, false));
+
+    EXPECT_EQ(OK, surface->setMaxDequeuedBufferCount(2));
+
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence));
+
+    EXPECT_EQ(1u, consumerListener->mCalls);
+    EXPECT_NE(nullptr, surfaceListener->mBuffer);
+
+    EXPECT_EQ(OK, surface->disconnect(NATIVE_WINDOW_API_CPU));
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 } // namespace android
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index d782f42..e4e81ad 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -30,6 +30,7 @@
         "android/os/InputEventInjectionResult.aidl",
         "android/os/InputEventInjectionSync.aidl",
         "android/os/InputConfig.aidl",
+        "android/os/MotionEventFlag.aidl",
         "android/os/PointerIconType.aidl",
     ],
 }
@@ -231,6 +232,7 @@
         "MotionPredictorMetricsManager.cpp",
         "PrintTools.cpp",
         "PropertyMap.cpp",
+        "Resampler.cpp",
         "TfLiteMotionPredictor.cpp",
         "TouchVideoFrame.cpp",
         "VelocityControl.cpp",
@@ -257,6 +259,7 @@
     ],
 
     shared_libs: [
+        "android.companion.virtualdevice.flags-aconfig-cc",
         "libbase",
         "libbinder",
         "libbinder_ndk",
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index b098147..a2bb345 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -580,7 +580,7 @@
                               &pointerProperties[pointerCount]);
     mSampleEventTimes.clear();
     mSamplePointerCoords.clear();
-    addSample(eventTime, pointerCoords);
+    addSample(eventTime, pointerCoords, mId);
 }
 
 void MotionEvent::copyFrom(const MotionEvent* other, bool keepHistory) {
@@ -640,9 +640,9 @@
     mSampleEventTimes = other.mSampleEventTimes;
 }
 
-void MotionEvent::addSample(
-        int64_t eventTime,
-        const PointerCoords* pointerCoords) {
+void MotionEvent::addSample(int64_t eventTime, const PointerCoords* pointerCoords,
+                            int32_t eventId) {
+    mId = eventId;
     mSampleEventTimes.push_back(eventTime);
     mSamplePointerCoords.insert(mSamplePointerCoords.end(), &pointerCoords[0],
                                 &pointerCoords[getPointerCount()]);
diff --git a/libs/input/InputConsumer.cpp b/libs/input/InputConsumer.cpp
index fcf490d..1eeb4e6 100644
--- a/libs/input/InputConsumer.cpp
+++ b/libs/input/InputConsumer.cpp
@@ -135,7 +135,7 @@
     }
 
     event.setMetaState(event.getMetaState() | msg.body.motion.metaState);
-    event.addSample(msg.body.motion.eventTime, pointerCoords);
+    event.addSample(msg.body.motion.eventTime, pointerCoords, msg.body.motion.eventId);
 }
 
 void initializeTouchModeEvent(TouchModeEvent& event, const InputMessage& msg) {
@@ -235,8 +235,9 @@
             mMsgDeferred = false;
         } else {
             // Receive a fresh message.
-            status_t result = mChannel->receiveMessage(&mMsg);
-            if (result == OK) {
+            android::base::Result<InputMessage> result = mChannel->receiveMessage();
+            if (result.ok()) {
+                mMsg = std::move(result.value());
                 const auto [_, inserted] =
                         mConsumeTimes.emplace(mMsg.header.seq, systemTime(SYSTEM_TIME_MONOTONIC));
                 LOG_ALWAYS_FATAL_IF(!inserted, "Already have a consume time for seq=%" PRIu32,
@@ -244,11 +245,11 @@
 
                 // Trace the event processing timeline - event was just read from the socket
                 ATRACE_ASYNC_BEGIN(mProcessingTraceTag.c_str(), /*cookie=*/mMsg.header.seq);
-            }
-            if (result) {
+            } else {
                 // Consume the next batched event unless batches are being held for later.
-                if (consumeBatches || result != WOULD_BLOCK) {
-                    result = consumeBatch(factory, frameTime, outSeq, outEvent);
+                if (consumeBatches || result.error().code() != WOULD_BLOCK) {
+                    result = android::base::Error(
+                            consumeBatch(factory, frameTime, outSeq, outEvent));
                     if (*outEvent) {
                         ALOGD_IF(DEBUG_TRANSPORT_CONSUMER,
                                  "channel '%s' consumer ~ consumed batch event, seq=%u",
@@ -256,7 +257,7 @@
                         break;
                     }
                 }
-                return result;
+                return result.error().code();
             }
         }
 
@@ -696,7 +697,7 @@
                  currentCoords.getY(), otherCoords.getX(), otherCoords.getY(), alpha);
     }
 
-    event->addSample(sampleTime, touchState.lastResample.pointers);
+    event->addSample(sampleTime, touchState.lastResample.pointers, event->getId());
 }
 
 status_t InputConsumer::sendFinishedSignal(uint32_t seq, bool handled) {
diff --git a/libs/input/InputConsumerNoResampling.cpp b/libs/input/InputConsumerNoResampling.cpp
index 15d992f..99ffa68 100644
--- a/libs/input/InputConsumerNoResampling.cpp
+++ b/libs/input/InputConsumerNoResampling.cpp
@@ -17,6 +17,8 @@
 #define LOG_TAG "InputTransport"
 #define ATRACE_TAG ATRACE_TAG_INPUT
 
+#include <chrono>
+
 #include <inttypes.h>
 
 #include <android-base/logging.h>
@@ -114,7 +116,7 @@
 
     // TODO(b/329770983): figure out if it's safe to combine events with mismatching metaState
     event.setMetaState(event.getMetaState() | msg.body.motion.metaState);
-    event.addSample(msg.body.motion.eventTime, pointerCoords.data());
+    event.addSample(msg.body.motion.eventTime, pointerCoords.data(), msg.body.motion.eventId);
 }
 
 std::unique_ptr<TouchModeEvent> createTouchModeEvent(const InputMessage& msg) {
@@ -168,6 +170,10 @@
     return msg;
 }
 
+bool isPointerEvent(const MotionEvent& motionEvent) {
+    return (motionEvent.getSource() & AINPUT_SOURCE_CLASS_POINTER) == AINPUT_SOURCE_CLASS_POINTER;
+}
+
 } // namespace
 
 using android::base::Result;
@@ -177,8 +183,13 @@
 
 InputConsumerNoResampling::InputConsumerNoResampling(const std::shared_ptr<InputChannel>& channel,
                                                      sp<Looper> looper,
-                                                     InputConsumerCallbacks& callbacks)
-      : mChannel(channel), mLooper(looper), mCallbacks(callbacks), mFdEvents(0) {
+                                                     InputConsumerCallbacks& callbacks,
+                                                     std::unique_ptr<Resampler> resampler)
+      : mChannel(channel),
+        mLooper(looper),
+        mCallbacks(callbacks),
+        mResampler(std::move(resampler)),
+        mFdEvents(0) {
     LOG_ALWAYS_FATAL_IF(mLooper == nullptr);
     mCallback = sp<LooperEventCallback>::make(
             std::bind(&InputConsumerNoResampling::handleReceiveCallback, this,
@@ -362,36 +373,36 @@
 std::vector<InputMessage> InputConsumerNoResampling::readAllMessages() {
     std::vector<InputMessage> messages;
     while (true) {
-        InputMessage msg;
-        status_t result = mChannel->receiveMessage(&msg);
-        switch (result) {
-            case OK: {
-                const auto [_, inserted] =
-                        mConsumeTimes.emplace(msg.header.seq, systemTime(SYSTEM_TIME_MONOTONIC));
-                LOG_ALWAYS_FATAL_IF(!inserted, "Already have a consume time for seq=%" PRIu32,
-                                    msg.header.seq);
+        android::base::Result<InputMessage> result = mChannel->receiveMessage();
+        if (result.ok()) {
+            const InputMessage& msg = *result;
+            const auto [_, inserted] =
+                    mConsumeTimes.emplace(msg.header.seq, systemTime(SYSTEM_TIME_MONOTONIC));
+            LOG_ALWAYS_FATAL_IF(!inserted, "Already have a consume time for seq=%" PRIu32,
+                                msg.header.seq);
 
-                // Trace the event processing timeline - event was just read from the socket
-                // TODO(b/329777420): distinguish between multiple instances of InputConsumer
-                // in the same process.
-                ATRACE_ASYNC_BEGIN("InputConsumer processing", /*cookie=*/msg.header.seq);
-                messages.push_back(msg);
-                break;
-            }
-            case WOULD_BLOCK: {
-                return messages;
-            }
-            case DEAD_OBJECT: {
-                LOG(FATAL) << "Got a dead object for " << mChannel->getName();
-                break;
-            }
-            case BAD_VALUE: {
-                LOG(FATAL) << "Got a bad value for " << mChannel->getName();
-                break;
-            }
-            default: {
-                LOG(FATAL) << "Unexpected error: " << result;
-                break;
+            // Trace the event processing timeline - event was just read from the socket
+            // TODO(b/329777420): distinguish between multiple instances of InputConsumer
+            // in the same process.
+            ATRACE_ASYNC_BEGIN("InputConsumer processing", /*cookie=*/msg.header.seq);
+            messages.push_back(msg);
+        } else { // !result.ok()
+            switch (result.error().code()) {
+                case WOULD_BLOCK: {
+                    return messages;
+                }
+                case DEAD_OBJECT: {
+                    LOG(FATAL) << "Got a dead object for " << mChannel->getName();
+                    break;
+                }
+                case BAD_VALUE: {
+                    LOG(FATAL) << "Got a bad value for " << mChannel->getName();
+                    break;
+                }
+                default: {
+                    LOG(FATAL) << "Unexpected error: " << result.error().message();
+                    break;
+                }
             }
         }
     }
@@ -445,6 +456,36 @@
     }
 }
 
+std::pair<std::unique_ptr<MotionEvent>, std::optional<uint32_t>>
+InputConsumerNoResampling::createBatchedMotionEvent(const nsecs_t frameTime,
+                                                    std::queue<InputMessage>& messages) {
+    std::unique_ptr<MotionEvent> motionEvent;
+    std::optional<uint32_t> firstSeqForBatch;
+    while (!messages.empty() && !(messages.front().body.motion.eventTime > frameTime)) {
+        if (motionEvent == nullptr) {
+            motionEvent = createMotionEvent(messages.front());
+            firstSeqForBatch = messages.front().header.seq;
+            const auto [_, inserted] = mBatchedSequenceNumbers.insert({*firstSeqForBatch, {}});
+            LOG_IF(FATAL, !inserted)
+                    << "The sequence " << messages.front().header.seq << " was already present!";
+        } else {
+            addSample(*motionEvent, messages.front());
+            mBatchedSequenceNumbers[*firstSeqForBatch].push_back(messages.front().header.seq);
+        }
+        messages.pop();
+    }
+    // Check if resampling should be performed.
+    if (motionEvent != nullptr && isPointerEvent(*motionEvent) && mResampler != nullptr) {
+        InputMessage* futureSample = nullptr;
+        if (!messages.empty()) {
+            futureSample = &messages.front();
+        }
+        mResampler->resampleMotionEvent(static_cast<std::chrono::nanoseconds>(frameTime),
+                                        *motionEvent, futureSample);
+    }
+    return std::make_pair(std::move(motionEvent), firstSeqForBatch);
+}
+
 bool InputConsumerNoResampling::consumeBatchedInputEvents(
         std::optional<nsecs_t> requestedFrameTime) {
     ensureCalledOnLooperThread(__func__);
@@ -452,28 +493,8 @@
     // infinite frameTime.
     const nsecs_t frameTime = requestedFrameTime.value_or(std::numeric_limits<nsecs_t>::max());
     bool producedEvents = false;
-    for (auto& [deviceId, messages] : mBatches) {
-        std::unique_ptr<MotionEvent> motion;
-        std::optional<uint32_t> firstSeqForBatch;
-        std::vector<uint32_t> sequences;
-        while (!messages.empty()) {
-            const InputMessage& msg = messages.front();
-            if (msg.body.motion.eventTime > frameTime) {
-                break;
-            }
-            if (motion == nullptr) {
-                motion = createMotionEvent(msg);
-                firstSeqForBatch = msg.header.seq;
-                const auto [_, inserted] = mBatchedSequenceNumbers.insert({*firstSeqForBatch, {}});
-                if (!inserted) {
-                    LOG(FATAL) << "The sequence " << msg.header.seq << " was already present!";
-                }
-            } else {
-                addSample(*motion, msg);
-                mBatchedSequenceNumbers[*firstSeqForBatch].push_back(msg.header.seq);
-            }
-            messages.pop();
-        }
+    for (auto& [_, messages] : mBatches) {
+        auto [motion, firstSeqForBatch] = createBatchedMotionEvent(frameTime, messages);
         if (motion != nullptr) {
             LOG_ALWAYS_FATAL_IF(!firstSeqForBatch.has_value());
             mCallbacks.onMotionEvent(std::move(motion), *firstSeqForBatch);
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 47b4228..77dcaa9 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -375,13 +375,11 @@
 
     sp<IBinder> token = sp<BBinder>::make();
 
-    std::string serverChannelName = name + " (server)";
     android::base::unique_fd serverFd(sockets[0]);
-    outServerChannel = InputChannel::create(serverChannelName, std::move(serverFd), token);
+    outServerChannel = InputChannel::create(name, std::move(serverFd), token);
 
-    std::string clientChannelName = name + " (client)";
     android::base::unique_fd clientFd(sockets[1]);
-    outClientChannel = InputChannel::create(clientChannelName, std::move(clientFd), token);
+    outClientChannel = InputChannel::create(name, std::move(clientFd), token);
     return OK;
 }
 
@@ -424,10 +422,11 @@
     return OK;
 }
 
-status_t InputChannel::receiveMessage(InputMessage* msg) {
+android::base::Result<InputMessage> InputChannel::receiveMessage() {
     ssize_t nRead;
+    InputMessage msg;
     do {
-        nRead = ::recv(getFd(), msg, sizeof(InputMessage), MSG_DONTWAIT);
+        nRead = ::recv(getFd(), &msg, sizeof(InputMessage), MSG_DONTWAIT);
     } while (nRead == -1 && errno == EINTR);
 
     if (nRead < 0) {
@@ -435,36 +434,36 @@
         ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ receive message failed, errno=%d",
                  name.c_str(), errno);
         if (error == EAGAIN || error == EWOULDBLOCK) {
-            return WOULD_BLOCK;
+            return android::base::Error(WOULD_BLOCK);
         }
         if (error == EPIPE || error == ENOTCONN || error == ECONNREFUSED) {
-            return DEAD_OBJECT;
+            return android::base::Error(DEAD_OBJECT);
         }
-        return -error;
+        return android::base::Error(-error);
     }
 
     if (nRead == 0) { // check for EOF
         ALOGD_IF(DEBUG_CHANNEL_MESSAGES,
                  "channel '%s' ~ receive message failed because peer was closed", name.c_str());
-        return DEAD_OBJECT;
+        return android::base::Error(DEAD_OBJECT);
     }
 
-    if (!msg->isValid(nRead)) {
+    if (!msg.isValid(nRead)) {
         ALOGE("channel '%s' ~ received invalid message of size %zd", name.c_str(), nRead);
-        return BAD_VALUE;
+        return android::base::Error(BAD_VALUE);
     }
 
     ALOGD_IF(DEBUG_CHANNEL_MESSAGES, "channel '%s' ~ received message of type %s", name.c_str(),
-             ftl::enum_string(msg->header.type).c_str());
+             ftl::enum_string(msg.header.type).c_str());
     if (ATRACE_ENABLED()) {
         // Add an additional trace point to include data about the received message.
         std::string message =
                 StringPrintf("receiveMessage(inputChannel=%s, seq=0x%" PRIx32 ", type=%s)",
-                             name.c_str(), msg->header.seq,
-                             ftl::enum_string(msg->header.type).c_str());
+                             name.c_str(), msg.header.seq,
+                             ftl::enum_string(msg.header.type).c_str());
         ATRACE_NAME(message.c_str());
     }
-    return OK;
+    return msg;
 }
 
 bool InputChannel::probablyHasInput() const {
@@ -589,7 +588,8 @@
                 mInputVerifier.processMovement(deviceId, source, action, pointerCount,
                                                pointerProperties, pointerCoords, flags);
         if (!result.ok()) {
-            LOG(FATAL) << "Bad stream: " << result.error();
+            LOG(ERROR) << "Bad stream: " << result.error();
+            return BAD_VALUE;
         }
     }
     if (debugTransportPublisher()) {
@@ -729,15 +729,16 @@
 }
 
 android::base::Result<InputPublisher::ConsumerResponse> InputPublisher::receiveConsumerResponse() {
-    InputMessage msg;
-    status_t result = mChannel->receiveMessage(&msg);
-    if (result) {
-        if (debugTransportPublisher() && result != WOULD_BLOCK) {
+    android::base::Result<InputMessage> result = mChannel->receiveMessage();
+    if (!result.ok()) {
+        if (debugTransportPublisher() && result.error().code() != WOULD_BLOCK) {
             LOG(INFO) << "channel '" << mChannel->getName() << "' publisher ~ " << __func__ << ": "
-                      << strerror(result);
+                      << result.error().message();
         }
-        return android::base::Error(result);
+        return result.error();
     }
+
+    const InputMessage& msg = *result;
     if (msg.header.type == InputMessage::Type::FINISHED) {
         ALOGD_IF(debugTransportPublisher(),
                  "channel '%s' publisher ~ %s: finished: seq=%u, handled=%s",
diff --git a/libs/input/KeyLayoutMap.cpp b/libs/input/KeyLayoutMap.cpp
index 5088188..f3241c9 100644
--- a/libs/input/KeyLayoutMap.cpp
+++ b/libs/input/KeyLayoutMap.cpp
@@ -240,8 +240,9 @@
 
 std::vector<int32_t> KeyLayoutMap::findScanCodesForKey(int32_t keyCode) const {
     std::vector<int32_t> scanCodes;
+    // b/354333072: Only consider keys without FUNCTION flag
     for (const auto& [scanCode, key] : mKeysByScanCode) {
-        if (keyCode == key.keyCode) {
+        if (keyCode == key.keyCode && !(key.flags & POLICY_FLAG_FUNCTION)) {
             scanCodes.push_back(scanCode);
         }
     }
diff --git a/libs/input/MotionPredictor.cpp b/libs/input/MotionPredictor.cpp
index 5b61d39..c61d394 100644
--- a/libs/input/MotionPredictor.cpp
+++ b/libs/input/MotionPredictor.cpp
@@ -72,9 +72,13 @@
 
 // --- JerkTracker ---
 
-JerkTracker::JerkTracker(bool normalizedDt) : mNormalizedDt(normalizedDt) {}
+JerkTracker::JerkTracker(bool normalizedDt, float alpha)
+      : mNormalizedDt(normalizedDt), mAlpha(alpha) {}
 
 void JerkTracker::pushSample(int64_t timestamp, float xPos, float yPos) {
+    // If we previously had full samples, we have a previous jerk calculation
+    // to do weighted smoothing.
+    const bool applySmoothing = mTimestamps.size() == mTimestamps.capacity();
     mTimestamps.pushBack(timestamp);
     const int numSamples = mTimestamps.size();
 
@@ -115,6 +119,16 @@
         }
     }
 
+    if (numSamples == static_cast<int>(mTimestamps.capacity())) {
+        float newJerkMagnitude = std::hypot(newXDerivatives[3], newYDerivatives[3]);
+        ALOGD_IF(isDebug(), "raw jerk: %f", newJerkMagnitude);
+        if (applySmoothing) {
+            mJerkMagnitude = mJerkMagnitude + (mAlpha * (newJerkMagnitude - mJerkMagnitude));
+        } else {
+            mJerkMagnitude = newJerkMagnitude;
+        }
+    }
+
     std::swap(newXDerivatives, mXDerivatives);
     std::swap(newYDerivatives, mYDerivatives);
 }
@@ -125,7 +139,7 @@
 
 std::optional<float> JerkTracker::jerkMagnitude() const {
     if (mTimestamps.size() == mTimestamps.capacity()) {
-        return std::hypot(mXDerivatives[3], mYDerivatives[3]);
+        return mJerkMagnitude;
     }
     return std::nullopt;
 }
@@ -139,6 +153,24 @@
         mCheckMotionPredictionEnabled(std::move(checkMotionPredictionEnabled)),
         mReportAtomFunction(reportAtomFunction) {}
 
+void MotionPredictor::initializeObjects() {
+    mModel = TfLiteMotionPredictorModel::create();
+    LOG_ALWAYS_FATAL_IF(!mModel);
+
+    // mJerkTracker assumes normalized dt = 1 between recorded samples because
+    // the underlying mModel input also assumes fixed-interval samples.
+    // Normalized dt as 1 is also used to correspond with the similar Jank
+    // implementation from the JetPack MotionPredictor implementation.
+    mJerkTracker = std::make_unique<JerkTracker>(/*normalizedDt=*/true, mModel->config().jerkAlpha);
+
+    mBuffers = std::make_unique<TfLiteMotionPredictorBuffers>(mModel->inputLength());
+
+    mMetricsManager =
+            std::make_unique<MotionPredictorMetricsManager>(mModel->config().predictionInterval,
+                                                            mModel->outputLength(),
+                                                            mReportAtomFunction);
+}
+
 android::base::Result<void> MotionPredictor::record(const MotionEvent& event) {
     if (mLastEvent && mLastEvent->getDeviceId() != event.getDeviceId()) {
         // We still have an active gesture for another device. The provided MotionEvent is not
@@ -155,28 +187,18 @@
         return {};
     }
 
-    // Initialise the model now that it's likely to be used.
     if (!mModel) {
-        mModel = TfLiteMotionPredictorModel::create();
-        LOG_ALWAYS_FATAL_IF(!mModel);
-    }
-
-    if (!mBuffers) {
-        mBuffers = std::make_unique<TfLiteMotionPredictorBuffers>(mModel->inputLength());
+        initializeObjects();
     }
 
     // Pass input event to the MetricsManager.
-    if (!mMetricsManager) {
-        mMetricsManager.emplace(mModel->config().predictionInterval, mModel->outputLength(),
-                                mReportAtomFunction);
-    }
     mMetricsManager->onRecord(event);
 
     const int32_t action = event.getActionMasked();
     if (action == AMOTION_EVENT_ACTION_UP || action == AMOTION_EVENT_ACTION_CANCEL) {
         ALOGD_IF(isDebug(), "End of event stream");
         mBuffers->reset();
-        mJerkTracker.reset();
+        mJerkTracker->reset();
         mLastEvent.reset();
         return {};
     } else if (action != AMOTION_EVENT_ACTION_DOWN && action != AMOTION_EVENT_ACTION_MOVE) {
@@ -211,9 +233,9 @@
                                                                           0, i),
                                      .orientation = event.getHistoricalOrientation(0, i),
                              });
-        mJerkTracker.pushSample(event.getHistoricalEventTime(i),
-                                coords->getAxisValue(AMOTION_EVENT_AXIS_X),
-                                coords->getAxisValue(AMOTION_EVENT_AXIS_Y));
+        mJerkTracker->pushSample(event.getHistoricalEventTime(i),
+                                 coords->getAxisValue(AMOTION_EVENT_AXIS_X),
+                                 coords->getAxisValue(AMOTION_EVENT_AXIS_Y));
     }
 
     if (!mLastEvent) {
@@ -261,7 +283,7 @@
     int64_t predictionTime = mBuffers->lastTimestamp();
     const int64_t futureTime = timestamp + mPredictionTimestampOffsetNanos;
 
-    const float jerkMagnitude = mJerkTracker.jerkMagnitude().value_or(0);
+    const float jerkMagnitude = mJerkTracker->jerkMagnitude().value_or(0);
     const float fractionKept =
             1 - normalizeRange(jerkMagnitude, mModel->config().lowJerk, mModel->config().highJerk);
     // float to ensure proper division below.
@@ -323,7 +345,7 @@
                                    event.getRawTransform(), event.getDownTime(), predictionTime,
                                    event.getPointerCount(), event.getPointerProperties(), &coords);
         } else {
-            prediction->addSample(predictionTime, &coords);
+            prediction->addSample(predictionTime, &coords, prediction->getId());
         }
 
         axisFrom = axisTo;
diff --git a/libs/input/Resampler.cpp b/libs/input/Resampler.cpp
new file mode 100644
index 0000000..836a97a
--- /dev/null
+++ b/libs/input/Resampler.cpp
@@ -0,0 +1,151 @@
+/**
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "LegacyResampler"
+
+#include <algorithm>
+#include <chrono>
+
+#include <android-base/logging.h>
+#include <android-base/properties.h>
+
+#include <input/Resampler.h>
+#include <utils/Timers.h>
+
+using std::chrono::nanoseconds;
+
+namespace android {
+
+namespace {
+
+const bool IS_DEBUGGABLE_BUILD =
+#if defined(__ANDROID__)
+        android::base::GetBoolProperty("ro.debuggable", false);
+#else
+        true;
+#endif
+
+bool debugResampling() {
+    if (!IS_DEBUGGABLE_BUILD) {
+        static const bool DEBUG_TRANSPORT_RESAMPLING =
+                __android_log_is_loggable(ANDROID_LOG_DEBUG, LOG_TAG "Resampling",
+                                          ANDROID_LOG_INFO);
+        return DEBUG_TRANSPORT_RESAMPLING;
+    }
+    return __android_log_is_loggable(ANDROID_LOG_DEBUG, LOG_TAG "Resampling", ANDROID_LOG_INFO);
+}
+
+constexpr std::chrono::milliseconds RESAMPLE_LATENCY{5};
+
+constexpr std::chrono::milliseconds RESAMPLE_MIN_DELTA{2};
+
+constexpr std::chrono::milliseconds RESAMPLE_MAX_DELTA{20};
+
+constexpr std::chrono::milliseconds RESAMPLE_MAX_PREDICTION{8};
+
+inline float lerp(float a, float b, float alpha) {
+    return a + alpha * (b - a);
+}
+
+const PointerCoords calculateResampledCoords(const PointerCoords& a, const PointerCoords& b,
+                                             const float alpha) {
+    // We use the value of alpha to initialize resampledCoords with the latest sample information.
+    PointerCoords resampledCoords = (alpha < 1.0f) ? a : b;
+    resampledCoords.isResampled = true;
+    resampledCoords.setAxisValue(AMOTION_EVENT_AXIS_X, lerp(a.getX(), b.getX(), alpha));
+    resampledCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, lerp(a.getY(), b.getY(), alpha));
+    return resampledCoords;
+}
+} // namespace
+
+void LegacyResampler::updateLatestSamples(const MotionEvent& motionEvent) {
+    const size_t motionEventSampleSize = motionEvent.getHistorySize() + 1;
+    for (size_t i = 0; i < motionEventSampleSize; ++i) {
+        Sample sample{static_cast<nanoseconds>(motionEvent.getHistoricalEventTime(i)),
+                      *motionEvent.getPointerProperties(0),
+                      motionEvent.getSamplePointerCoords()[i]};
+        mLatestSamples.pushBack(sample);
+    }
+}
+
+void LegacyResampler::interpolate(const nanoseconds resampleTime, MotionEvent& motionEvent,
+                                  const InputMessage& futureSample) const {
+    const Sample pastSample = mLatestSamples.back();
+    const nanoseconds delta =
+            static_cast<nanoseconds>(futureSample.body.motion.eventTime) - pastSample.eventTime;
+    if (delta < RESAMPLE_MIN_DELTA) {
+        LOG_IF(INFO, debugResampling()) << "Not resampled. Delta is too small: " << delta << "ns.";
+        return;
+    }
+    const float alpha =
+            std::chrono::duration<float, std::milli>(resampleTime - pastSample.eventTime) / delta;
+
+    const PointerCoords resampledCoords =
+            calculateResampledCoords(pastSample.pointer.coords,
+                                     futureSample.body.motion.pointers[0].coords, alpha);
+    motionEvent.addSample(resampleTime.count(), &resampledCoords, motionEvent.getId());
+}
+
+void LegacyResampler::extrapolate(const nanoseconds resampleTime, MotionEvent& motionEvent) const {
+    if (mLatestSamples.size() < 2) {
+        return;
+    }
+    const Sample pastSample = *(mLatestSamples.end() - 2);
+    const Sample presentSample = *(mLatestSamples.end() - 1);
+    const nanoseconds delta =
+            static_cast<nanoseconds>(presentSample.eventTime - pastSample.eventTime);
+    if (delta < RESAMPLE_MIN_DELTA) {
+        LOG_IF(INFO, debugResampling()) << "Not resampled. Delta is too small: " << delta << "ns.";
+        return;
+    } else if (delta > RESAMPLE_MAX_DELTA) {
+        LOG_IF(INFO, debugResampling()) << "Not resampled. Delta is too large: " << delta << "ns.";
+        return;
+    }
+    // The farthest future time to which we can extrapolate. If the given resampleTime exceeds this,
+    // we use this value as the resample time target.
+    const nanoseconds farthestPrediction = static_cast<nanoseconds>(presentSample.eventTime) +
+            std::min<nanoseconds>(delta / 2, RESAMPLE_MAX_PREDICTION);
+    const nanoseconds newResampleTime =
+            (resampleTime > farthestPrediction) ? (farthestPrediction) : (resampleTime);
+    LOG_IF(INFO, debugResampling() && newResampleTime == farthestPrediction)
+            << "Resample time is too far in the future. Adjusting prediction from "
+            << (resampleTime - presentSample.eventTime) << " to "
+            << (farthestPrediction - presentSample.eventTime) << "ns.";
+    const float alpha =
+            std::chrono::duration<float, std::milli>(newResampleTime - pastSample.eventTime) /
+            delta;
+
+    const PointerCoords resampledCoords =
+            calculateResampledCoords(pastSample.pointer.coords, presentSample.pointer.coords,
+                                     alpha);
+    motionEvent.addSample(newResampleTime.count(), &resampledCoords, motionEvent.getId());
+}
+
+void LegacyResampler::resampleMotionEvent(const nanoseconds resampleTime, MotionEvent& motionEvent,
+                                          const InputMessage* futureSample) {
+    if (mPreviousDeviceId && *mPreviousDeviceId != motionEvent.getDeviceId()) {
+        mLatestSamples.clear();
+    }
+    mPreviousDeviceId = motionEvent.getDeviceId();
+    updateLatestSamples(motionEvent);
+    if (futureSample) {
+        interpolate(resampleTime, motionEvent, *futureSample);
+    } else {
+        extrapolate(resampleTime, motionEvent);
+    }
+    LOG_IF(INFO, debugResampling()) << "Not resampled. Not enough data.";
+}
+} // namespace android
diff --git a/libs/input/TfLiteMotionPredictor.cpp b/libs/input/TfLiteMotionPredictor.cpp
index b843a4b..5250a9d 100644
--- a/libs/input/TfLiteMotionPredictor.cpp
+++ b/libs/input/TfLiteMotionPredictor.cpp
@@ -283,6 +283,7 @@
             .distanceNoiseFloor = parseXMLFloat(*configRoot, "distance-noise-floor"),
             .lowJerk = parseXMLFloat(*configRoot, "low-jerk"),
             .highJerk = parseXMLFloat(*configRoot, "high-jerk"),
+            .jerkAlpha = parseXMLFloat(*configRoot, "jerk-alpha"),
     };
 
     return std::unique_ptr<TfLiteMotionPredictorModel>(
diff --git a/libs/input/VirtualInputDevice.cpp b/libs/input/VirtualInputDevice.cpp
index eea06f1..51edbf1 100644
--- a/libs/input/VirtualInputDevice.cpp
+++ b/libs/input/VirtualInputDevice.cpp
@@ -16,30 +16,267 @@
 
 #define LOG_TAG "VirtualInputDevice"
 
+#include <android-base/logging.h>
 #include <android/input.h>
 #include <android/keycodes.h>
+#include <android_companion_virtualdevice_flags.h>
 #include <fcntl.h>
 #include <input/Input.h>
 #include <input/VirtualInputDevice.h>
 #include <linux/uinput.h>
-#include <math.h>
-#include <utils/Log.h>
 
-#include <map>
 #include <string>
 
 using android::base::unique_fd;
 
+namespace {
+
 /**
  * Log debug messages about native virtual input devices.
  * Enable this via "adb shell setprop log.tag.VirtualInputDevice DEBUG"
  */
-static bool isDebug() {
+bool isDebug() {
     return __android_log_is_loggable(ANDROID_LOG_DEBUG, LOG_TAG, ANDROID_LOG_INFO);
 }
 
+unique_fd invalidFd() {
+    return unique_fd(-1);
+}
+
+} // namespace
+
 namespace android {
 
+namespace vd_flags = android::companion::virtualdevice::flags;
+
+/** Creates a new uinput device and assigns a file descriptor. */
+unique_fd openUinput(const char* readableName, int32_t vendorId, int32_t productId,
+                     const char* phys, DeviceType deviceType, int32_t screenHeight,
+                     int32_t screenWidth) {
+    unique_fd fd(TEMP_FAILURE_RETRY(::open("/dev/uinput", O_WRONLY | O_NONBLOCK)));
+    if (fd < 0) {
+        ALOGE("Error creating uinput device: %s", strerror(errno));
+        return invalidFd();
+    }
+
+    ioctl(fd, UI_SET_PHYS, phys);
+
+    ioctl(fd, UI_SET_EVBIT, EV_KEY);
+    ioctl(fd, UI_SET_EVBIT, EV_SYN);
+    switch (deviceType) {
+        case DeviceType::DPAD:
+            for (const auto& [_, keyCode] : VirtualDpad::DPAD_KEY_CODE_MAPPING) {
+                ioctl(fd, UI_SET_KEYBIT, keyCode);
+            }
+            break;
+        case DeviceType::KEYBOARD:
+            for (const auto& [_, keyCode] : VirtualKeyboard::KEY_CODE_MAPPING) {
+                ioctl(fd, UI_SET_KEYBIT, keyCode);
+            }
+            break;
+        case DeviceType::MOUSE:
+            ioctl(fd, UI_SET_EVBIT, EV_REL);
+            ioctl(fd, UI_SET_KEYBIT, BTN_LEFT);
+            ioctl(fd, UI_SET_KEYBIT, BTN_RIGHT);
+            ioctl(fd, UI_SET_KEYBIT, BTN_MIDDLE);
+            ioctl(fd, UI_SET_KEYBIT, BTN_BACK);
+            ioctl(fd, UI_SET_KEYBIT, BTN_FORWARD);
+            ioctl(fd, UI_SET_RELBIT, REL_X);
+            ioctl(fd, UI_SET_RELBIT, REL_Y);
+            ioctl(fd, UI_SET_RELBIT, REL_WHEEL);
+            ioctl(fd, UI_SET_RELBIT, REL_HWHEEL);
+            if (vd_flags::high_resolution_scroll()) {
+                ioctl(fd, UI_SET_RELBIT, REL_WHEEL_HI_RES);
+                ioctl(fd, UI_SET_RELBIT, REL_HWHEEL_HI_RES);
+            }
+            break;
+        case DeviceType::TOUCHSCREEN:
+            ioctl(fd, UI_SET_EVBIT, EV_ABS);
+            ioctl(fd, UI_SET_KEYBIT, BTN_TOUCH);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_SLOT);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_POSITION_X);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_POSITION_Y);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_TRACKING_ID);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_TOOL_TYPE);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_TOUCH_MAJOR);
+            ioctl(fd, UI_SET_ABSBIT, ABS_MT_PRESSURE);
+            ioctl(fd, UI_SET_PROPBIT, INPUT_PROP_DIRECT);
+            break;
+        case DeviceType::STYLUS:
+            ioctl(fd, UI_SET_EVBIT, EV_ABS);
+            ioctl(fd, UI_SET_KEYBIT, BTN_TOUCH);
+            ioctl(fd, UI_SET_KEYBIT, BTN_STYLUS);
+            ioctl(fd, UI_SET_KEYBIT, BTN_STYLUS2);
+            ioctl(fd, UI_SET_KEYBIT, BTN_TOOL_PEN);
+            ioctl(fd, UI_SET_KEYBIT, BTN_TOOL_RUBBER);
+            ioctl(fd, UI_SET_ABSBIT, ABS_X);
+            ioctl(fd, UI_SET_ABSBIT, ABS_Y);
+            ioctl(fd, UI_SET_ABSBIT, ABS_TILT_X);
+            ioctl(fd, UI_SET_ABSBIT, ABS_TILT_Y);
+            ioctl(fd, UI_SET_ABSBIT, ABS_PRESSURE);
+            ioctl(fd, UI_SET_PROPBIT, INPUT_PROP_DIRECT);
+            break;
+        case DeviceType::ROTARY_ENCODER:
+            ioctl(fd, UI_SET_EVBIT, EV_REL);
+            ioctl(fd, UI_SET_RELBIT, REL_WHEEL);
+            if (vd_flags::high_resolution_scroll()) {
+                ioctl(fd, UI_SET_RELBIT, REL_WHEEL_HI_RES);
+            }
+            break;
+        default:
+            ALOGE("Invalid input device type %d", static_cast<int32_t>(deviceType));
+            return invalidFd();
+    }
+
+    int version;
+    if (ioctl(fd, UI_GET_VERSION, &version) == 0 && version >= 5) {
+        uinput_setup setup;
+        memset(&setup, 0, sizeof(setup));
+        std::strncpy(setup.name, readableName, UINPUT_MAX_NAME_SIZE);
+        setup.id.version = 1;
+        setup.id.bustype = BUS_VIRTUAL;
+        setup.id.vendor = vendorId;
+        setup.id.product = productId;
+        if (deviceType == DeviceType::TOUCHSCREEN) {
+            uinput_abs_setup xAbsSetup;
+            xAbsSetup.code = ABS_MT_POSITION_X;
+            xAbsSetup.absinfo.maximum = screenWidth - 1;
+            xAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &xAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput x axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup yAbsSetup;
+            yAbsSetup.code = ABS_MT_POSITION_Y;
+            yAbsSetup.absinfo.maximum = screenHeight - 1;
+            yAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &yAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput y axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup majorAbsSetup;
+            majorAbsSetup.code = ABS_MT_TOUCH_MAJOR;
+            majorAbsSetup.absinfo.maximum = screenWidth - 1;
+            majorAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &majorAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput major axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup pressureAbsSetup;
+            pressureAbsSetup.code = ABS_MT_PRESSURE;
+            pressureAbsSetup.absinfo.maximum = 255;
+            pressureAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &pressureAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput pressure axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup slotAbsSetup;
+            slotAbsSetup.code = ABS_MT_SLOT;
+            slotAbsSetup.absinfo.maximum = MAX_POINTERS - 1;
+            slotAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &slotAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput slots: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup trackingIdAbsSetup;
+            trackingIdAbsSetup.code = ABS_MT_TRACKING_ID;
+            trackingIdAbsSetup.absinfo.maximum = MAX_POINTERS - 1;
+            trackingIdAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &trackingIdAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput tracking ids: %s", strerror(errno));
+                return invalidFd();
+            }
+        } else if (deviceType == DeviceType::STYLUS) {
+            uinput_abs_setup xAbsSetup;
+            xAbsSetup.code = ABS_X;
+            xAbsSetup.absinfo.maximum = screenWidth - 1;
+            xAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &xAbsSetup) != 0) {
+                ALOGE("Error creating stylus uinput x axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup yAbsSetup;
+            yAbsSetup.code = ABS_Y;
+            yAbsSetup.absinfo.maximum = screenHeight - 1;
+            yAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &yAbsSetup) != 0) {
+                ALOGE("Error creating stylus uinput y axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup tiltXAbsSetup;
+            tiltXAbsSetup.code = ABS_TILT_X;
+            tiltXAbsSetup.absinfo.maximum = 90;
+            tiltXAbsSetup.absinfo.minimum = -90;
+            if (ioctl(fd, UI_ABS_SETUP, &tiltXAbsSetup) != 0) {
+                ALOGE("Error creating stylus uinput tilt x axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup tiltYAbsSetup;
+            tiltYAbsSetup.code = ABS_TILT_Y;
+            tiltYAbsSetup.absinfo.maximum = 90;
+            tiltYAbsSetup.absinfo.minimum = -90;
+            if (ioctl(fd, UI_ABS_SETUP, &tiltYAbsSetup) != 0) {
+                ALOGE("Error creating stylus uinput tilt y axis: %s", strerror(errno));
+                return invalidFd();
+            }
+            uinput_abs_setup pressureAbsSetup;
+            pressureAbsSetup.code = ABS_PRESSURE;
+            pressureAbsSetup.absinfo.maximum = 255;
+            pressureAbsSetup.absinfo.minimum = 0;
+            if (ioctl(fd, UI_ABS_SETUP, &pressureAbsSetup) != 0) {
+                ALOGE("Error creating touchscreen uinput pressure axis: %s", strerror(errno));
+                return invalidFd();
+            }
+        }
+        if (ioctl(fd, UI_DEV_SETUP, &setup) != 0) {
+            ALOGE("Error creating uinput device: %s", strerror(errno));
+            return invalidFd();
+        }
+    } else {
+        // UI_DEV_SETUP was not introduced until version 5. Try setting up manually.
+        ALOGI("Falling back to version %d manual setup", version);
+        uinput_user_dev fallback;
+        memset(&fallback, 0, sizeof(fallback));
+        std::strncpy(fallback.name, readableName, UINPUT_MAX_NAME_SIZE);
+        fallback.id.version = 1;
+        fallback.id.bustype = BUS_VIRTUAL;
+        fallback.id.vendor = vendorId;
+        fallback.id.product = productId;
+        if (deviceType == DeviceType::TOUCHSCREEN) {
+            fallback.absmin[ABS_MT_POSITION_X] = 0;
+            fallback.absmax[ABS_MT_POSITION_X] = screenWidth - 1;
+            fallback.absmin[ABS_MT_POSITION_Y] = 0;
+            fallback.absmax[ABS_MT_POSITION_Y] = screenHeight - 1;
+            fallback.absmin[ABS_MT_TOUCH_MAJOR] = 0;
+            fallback.absmax[ABS_MT_TOUCH_MAJOR] = screenWidth - 1;
+            fallback.absmin[ABS_MT_PRESSURE] = 0;
+            fallback.absmax[ABS_MT_PRESSURE] = 255;
+        } else if (deviceType == DeviceType::STYLUS) {
+            fallback.absmin[ABS_X] = 0;
+            fallback.absmax[ABS_X] = screenWidth - 1;
+            fallback.absmin[ABS_Y] = 0;
+            fallback.absmax[ABS_Y] = screenHeight - 1;
+            fallback.absmin[ABS_TILT_X] = -90;
+            fallback.absmax[ABS_TILT_X] = 90;
+            fallback.absmin[ABS_TILT_Y] = -90;
+            fallback.absmax[ABS_TILT_Y] = 90;
+            fallback.absmin[ABS_PRESSURE] = 0;
+            fallback.absmax[ABS_PRESSURE] = 255;
+        }
+        if (TEMP_FAILURE_RETRY(write(fd, &fallback, sizeof(fallback))) != sizeof(fallback)) {
+            ALOGE("Error creating uinput device: %s", strerror(errno));
+            return invalidFd();
+        }
+    }
+
+    if (ioctl(fd, UI_DEV_CREATE) != 0) {
+        ALOGE("Error creating uinput device: %s", strerror(errno));
+        return invalidFd();
+    }
+
+    return fd;
+}
+
 VirtualInputDevice::VirtualInputDevice(unique_fd fd) : mFd(std::move(fd)) {}
 
 VirtualInputDevice::~VirtualInputDevice() {
@@ -253,7 +490,10 @@
         // clang-format on
 };
 
-VirtualMouse::VirtualMouse(unique_fd fd) : VirtualInputDevice(std::move(fd)) {}
+VirtualMouse::VirtualMouse(unique_fd fd)
+      : VirtualInputDevice(std::move(fd)),
+        mAccumulatedHighResScrollX(0),
+        mAccumulatedHighResScrollY(0) {}
 
 VirtualMouse::~VirtualMouse() {}
 
@@ -272,9 +512,47 @@
 
 bool VirtualMouse::writeScrollEvent(float xAxisMovement, float yAxisMovement,
                                     std::chrono::nanoseconds eventTime) {
-    return writeInputEvent(EV_REL, REL_HWHEEL, xAxisMovement, eventTime) &&
-            writeInputEvent(EV_REL, REL_WHEEL, yAxisMovement, eventTime) &&
-            writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    if (!vd_flags::high_resolution_scroll()) {
+        return writeInputEvent(EV_REL, REL_HWHEEL, static_cast<int32_t>(xAxisMovement),
+                               eventTime) &&
+                writeInputEvent(EV_REL, REL_WHEEL, static_cast<int32_t>(yAxisMovement),
+                                eventTime) &&
+                writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    }
+
+    const auto highResScrollX =
+            static_cast<int32_t>(xAxisMovement * kEvdevHighResScrollUnitsPerDetent);
+    const auto highResScrollY =
+            static_cast<int32_t>(yAxisMovement * kEvdevHighResScrollUnitsPerDetent);
+    bool highResScrollResult =
+            writeInputEvent(EV_REL, REL_HWHEEL_HI_RES, highResScrollX, eventTime) &&
+            writeInputEvent(EV_REL, REL_WHEEL_HI_RES, highResScrollY, eventTime);
+    if (!highResScrollResult) {
+        return false;
+    }
+
+    // According to evdev spec, a high-resolution mouse needs to emit REL_WHEEL / REL_HWHEEL events
+    // in addition to high-res scroll events. Regular scroll events can approximate high-res scroll
+    // events, so we send a regular scroll event when the accumulated scroll motion reaches a detent
+    // (single mouse wheel click).
+    mAccumulatedHighResScrollX += highResScrollX;
+    mAccumulatedHighResScrollY += highResScrollY;
+    const int32_t scrollX = mAccumulatedHighResScrollX / kEvdevHighResScrollUnitsPerDetent;
+    const int32_t scrollY = mAccumulatedHighResScrollY / kEvdevHighResScrollUnitsPerDetent;
+    if (scrollX != 0) {
+        if (!writeInputEvent(EV_REL, REL_HWHEEL, scrollX, eventTime)) {
+            return false;
+        }
+        mAccumulatedHighResScrollX %= kEvdevHighResScrollUnitsPerDetent;
+    }
+    if (scrollY != 0) {
+        if (!writeInputEvent(EV_REL, REL_WHEEL, scrollY, eventTime)) {
+            return false;
+        }
+        mAccumulatedHighResScrollY %= kEvdevHighResScrollUnitsPerDetent;
+    }
+
+    return writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
 }
 
 // --- VirtualTouchscreen ---
@@ -509,4 +787,39 @@
     return true;
 }
 
+// --- VirtualRotaryEncoder ---
+VirtualRotaryEncoder::VirtualRotaryEncoder(unique_fd fd)
+      : VirtualInputDevice(std::move(fd)), mAccumulatedHighResScrollAmount(0) {}
+
+VirtualRotaryEncoder::~VirtualRotaryEncoder() {}
+
+bool VirtualRotaryEncoder::writeScrollEvent(float scrollAmount,
+                                            std::chrono::nanoseconds eventTime) {
+    if (!vd_flags::high_resolution_scroll()) {
+        return writeInputEvent(EV_REL, REL_WHEEL, static_cast<int32_t>(scrollAmount), eventTime) &&
+                writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+    }
+
+    const auto highResScrollAmount =
+            static_cast<int32_t>(scrollAmount * kEvdevHighResScrollUnitsPerDetent);
+    if (!writeInputEvent(EV_REL, REL_WHEEL_HI_RES, highResScrollAmount, eventTime)) {
+        return false;
+    }
+
+    // According to evdev spec, a high-resolution scroll device needs to emit REL_WHEEL / REL_HWHEEL
+    // events in addition to high-res scroll events. Regular scroll events can approximate high-res
+    // scroll events, so we send a regular scroll event when the accumulated scroll motion reaches a
+    // detent (single wheel click).
+    mAccumulatedHighResScrollAmount += highResScrollAmount;
+    const int32_t scroll = mAccumulatedHighResScrollAmount / kEvdevHighResScrollUnitsPerDetent;
+    if (scroll != 0) {
+        if (!writeInputEvent(EV_REL, REL_WHEEL, scroll, eventTime)) {
+            return false;
+        }
+        mAccumulatedHighResScrollAmount %= kEvdevHighResScrollUnitsPerDetent;
+    }
+
+    return writeInputEvent(EV_SYN, SYN_REPORT, 0, eventTime);
+}
+
 } // namespace android
diff --git a/libs/input/android/os/IInputConstants.aidl b/libs/input/android/os/IInputConstants.aidl
index a77dfa5..e23fc94 100644
--- a/libs/input/android/os/IInputConstants.aidl
+++ b/libs/input/android/os/IInputConstants.aidl
@@ -49,130 +49,24 @@
     const int POLICY_FLAG_INJECTED_FROM_ACCESSIBILITY = 0x20000;
 
     /**
-     * This flag indicates that the window that received this motion event is partly
-     * or wholly obscured by another visible window above it and the event directly passed through
-     * the obscured area.
-     *
-     * A security sensitive application can check this flag to identify situations in which
-     * a malicious application may have covered up part of its content for the purpose
-     * of misleading the user or hijacking touches.  An appropriate response might be
-     * to drop the suspect touches or to take additional precautions to confirm the user's
-     * actual intent.
-     */
-    const int MOTION_EVENT_FLAG_WINDOW_IS_OBSCURED = 0x1;
-
-    /**
-     * This flag indicates that the window that received this motion event is partly
-     * or wholly obscured by another visible window above it and the event did not directly pass
-     * through the obscured area.
-     *
-     * A security sensitive application can check this flag to identify situations in which
-     * a malicious application may have covered up part of its content for the purpose
-     * of misleading the user or hijacking touches.  An appropriate response might be
-     * to drop the suspect touches or to take additional precautions to confirm the user's
-     * actual intent.
-     *
-     * Unlike FLAG_WINDOW_IS_OBSCURED, this is only true if the window that received this event is
-     * obstructed in areas other than the touched location.
-     */
-    const int MOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED = 0x2;
-
-    /**
-     * This private flag is only set on {@link #ACTION_HOVER_MOVE} events and indicates that
-     * this event will be immediately followed by a {@link #ACTION_HOVER_EXIT}. It is used to
-     * prevent generating redundant {@link #ACTION_HOVER_ENTER} events.
-     * @hide
-     */
-    const int MOTION_EVENT_FLAG_HOVER_EXIT_PENDING = 0x4;
-
-    /**
-     * This flag indicates that the event has been generated by a gesture generator. It
-     * provides a hint to the GestureDetector to not apply any touch slop.
-     *
-     * @hide
-     */
-    const int MOTION_EVENT_FLAG_IS_GENERATED_GESTURE = 0x8;
-
-    /**
-     * This flag is only set for events with {@link #ACTION_POINTER_UP} and {@link #ACTION_CANCEL}.
-     * It indicates that the pointer going up was an unintentional user touch. When FLAG_CANCELED
-     * is set, the typical actions that occur in response for a pointer going up (such as click
-     * handlers, end of drawing) should be aborted. This flag is typically set when the user was
-     * accidentally touching the screen, such as by gripping the device, or placing the palm on the
-     * screen.
-     *
-     * @see #ACTION_POINTER_UP
-     * @see #ACTION_CANCEL
+     * Common input event flag used for both motion and key events for a gesture or pointer being
+     * canceled.
      */
     const int INPUT_EVENT_FLAG_CANCELED = 0x20;
 
     /**
-     * This flag indicates that the event will not cause a focus change if it is directed to an
-     * unfocused window, even if it an {@link #ACTION_DOWN}. This is typically used with pointer
-     * gestures to allow the user to direct gestures to an unfocused window without bringing the
-     * window into focus.
-     * @hide
-     */
-    const int MOTION_EVENT_FLAG_NO_FOCUS_CHANGE = 0x40;
-
-    /**
-     * This flag indicates that the event has a valid value for AXIS_ORIENTATION.
-     *
-     * This is a private flag that is not used in Java.
-     * @hide
-     */
-    const int MOTION_EVENT_PRIVATE_FLAG_SUPPORTS_ORIENTATION = 0x80;
-
-    /**
-     * This flag indicates that the pointers' AXIS_ORIENTATION can be used to precisely determine
-     * the direction in which the tool is pointing. The value of the orientation axis will be in
-     * the range [-pi, pi], which represents a full circle. This is usually supported by devices
-     * like styluses.
-     *
-     * Conversely, AXIS_ORIENTATION cannot be used to tell which direction the tool is pointing
-     * when this flag is not set. In this case, the axis value will have a range of [-pi/2, pi/2],
-     * which represents half a circle. This is usually the case for devices like touchscreens and
-     * touchpads, for which it is difficult to tell which direction along the major axis of the
-     * touch ellipse the finger is pointing.
-     *
-     * This is a private flag that is not used in Java.
-     * @hide
-     */
-    const int MOTION_EVENT_PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION = 0x100;
-
-    /**
-     * The input event was generated or modified by accessibility service.
-     * Shared by both KeyEvent and MotionEvent flags, so this value should not overlap with either
-     * set of flags, including in input/Input.h and in android/input.h.
+     * Common input event flag used for both motion and key events, indicating that the event
+     * was generated or modified by accessibility service.
      */
     const int INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT = 0x800;
 
     /**
-     * Private flag that indicates when the system has detected that this motion event
-     * may be inconsistent with respect to the sequence of previously delivered motion events,
-     * such as when a pointer move event is sent but the pointer is not down.
-     *
-     * @hide
-     * @see #isTainted
-     * @see #setTainted
+     * Common input event flag used for both motion and key events, indicating that the system has
+     * detected this event may be inconsistent with the current event sequence or gesture, such as
+     * when a pointer move event is sent but the pointer is not down.
      */
     const int INPUT_EVENT_FLAG_TAINTED = 0x80000000;
 
-    /**
-     * Private flag indicating that this event was synthesized by the system and should be delivered
-     * to the accessibility focused view first. When being dispatched such an event is not handled
-     * by predecessors of the accessibility focused view and after the event reaches that view the
-     * flag is cleared and normal event dispatch is performed. This ensures that the platform can
-     * click on any view that has accessibility focus which is semantically equivalent to asking the
-     * view to perform a click accessibility action but more generic as views not implementing click
-     * action correctly can still be activated.
-     *
-     * @hide
-     * @see #isTargetAccessibilityFocus()
-     * @see #setTargetAccessibilityFocus(boolean)
-     */
-    const int MOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS = 0x40000000;
-
     /* The default pointer acceleration value. */
     const int DEFAULT_POINTER_ACCELERATION = 3;
 
diff --git a/libs/input/android/os/MotionEventFlag.aidl b/libs/input/android/os/MotionEventFlag.aidl
new file mode 100644
index 0000000..2093b06
--- /dev/null
+++ b/libs/input/android/os/MotionEventFlag.aidl
@@ -0,0 +1,152 @@
+/**
+ * Copyright 2024, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.os;
+
+import android.os.IInputConstants;
+
+/**
+ * Flag definitions for MotionEvents.
+ * @hide
+ */
+@Backing(type="int")
+enum MotionEventFlag {
+
+    /**
+     * This flag indicates that the window that received this motion event is partly
+     * or wholly obscured by another visible window above it and the event directly passed through
+     * the obscured area.
+     *
+     * A security sensitive application can check this flag to identify situations in which
+     * a malicious application may have covered up part of its content for the purpose
+     * of misleading the user or hijacking touches.  An appropriate response might be
+     * to drop the suspect touches or to take additional precautions to confirm the user's
+     * actual intent.
+     */
+    WINDOW_IS_OBSCURED = 0x1,
+
+    /**
+     * This flag indicates that the window that received this motion event is partly
+     * or wholly obscured by another visible window above it and the event did not directly pass
+     * through the obscured area.
+     *
+     * A security sensitive application can check this flag to identify situations in which
+     * a malicious application may have covered up part of its content for the purpose
+     * of misleading the user or hijacking touches.  An appropriate response might be
+     * to drop the suspect touches or to take additional precautions to confirm the user's
+     * actual intent.
+     *
+     * Unlike FLAG_WINDOW_IS_OBSCURED, this is only true if the window that received this event is
+     * obstructed in areas other than the touched location.
+     */
+    WINDOW_IS_PARTIALLY_OBSCURED = 0x2,
+
+    /**
+     * This private flag is only set on {@link #ACTION_HOVER_MOVE} events and indicates that
+     * this event will be immediately followed by a {@link #ACTION_HOVER_EXIT}. It is used to
+     * prevent generating redundant {@link #ACTION_HOVER_ENTER} events.
+     * @hide
+     */
+    HOVER_EXIT_PENDING = 0x4,
+
+    /**
+     * This flag indicates that the event has been generated by a gesture generator. It
+     * provides a hint to the GestureDetector to not apply any touch slop.
+     *
+     * @hide
+     */
+    IS_GENERATED_GESTURE = 0x8,
+
+    /**
+     * This flag is only set for events with {@link #ACTION_POINTER_UP} and {@link #ACTION_CANCEL}.
+     * It indicates that the pointer going up was an unintentional user touch. When FLAG_CANCELED
+     * is set, the typical actions that occur in response for a pointer going up (such as click
+     * handlers, end of drawing) should be aborted. This flag is typically set when the user was
+     * accidentally touching the screen, such as by gripping the device, or placing the palm on the
+     * screen.
+     *
+     * @see #ACTION_POINTER_UP
+     * @see #ACTION_CANCEL
+     */
+    CANCELED = IInputConstants.INPUT_EVENT_FLAG_CANCELED,
+
+    /**
+     * This flag indicates that the event will not cause a focus change if it is directed to an
+     * unfocused window, even if it an {@link #ACTION_DOWN}. This is typically used with pointer
+     * gestures to allow the user to direct gestures to an unfocused window without bringing the
+     * window into focus.
+     * @hide
+     */
+    NO_FOCUS_CHANGE = 0x40,
+
+    /**
+     * This flag indicates that the event has a valid value for AXIS_ORIENTATION.
+     *
+     * This is a private flag that is not used in Java.
+     * @hide
+     */
+    PRIVATE_FLAG_SUPPORTS_ORIENTATION = 0x80,
+
+    /**
+     * This flag indicates that the pointers' AXIS_ORIENTATION can be used to precisely determine
+     * the direction in which the tool is pointing. The value of the orientation axis will be in
+     * the range [-pi, pi], which represents a full circle. This is usually supported by devices
+     * like styluses.
+     *
+     * Conversely, AXIS_ORIENTATION cannot be used to tell which direction the tool is pointing
+     * when this flag is not set. In this case, the axis value will have a range of [-pi/2, pi/2],
+     * which represents half a circle. This is usually the case for devices like touchscreens and
+     * touchpads, for which it is difficult to tell which direction along the major axis of the
+     * touch ellipse the finger is pointing.
+     *
+     * This is a private flag that is not used in Java.
+     * @hide
+     */
+    PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION = 0x100,
+
+    /**
+     * The input event was generated or modified by accessibility service.
+     * Shared by both KeyEvent and MotionEvent flags, so this value should not overlap with either
+     * set of flags, including in input/Input.h and in android/input.h.
+     */
+    IS_ACCESSIBILITY_EVENT = IInputConstants.INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT,
+
+    /**
+     * Private flag that indicates when the system has detected that this motion event
+     * may be inconsistent with respect to the sequence of previously delivered motion events,
+     * such as when a pointer move event is sent but the pointer is not down.
+     *
+     * @hide
+     * @see #isTainted
+     * @see #setTainted
+     */
+    TAINTED = IInputConstants.INPUT_EVENT_FLAG_TAINTED,
+
+    /**
+     * Private flag indicating that this event was synthesized by the system and should be delivered
+     * to the accessibility focused view first. When being dispatched such an event is not handled
+     * by predecessors of the accessibility focused view and after the event reaches that view the
+     * flag is cleared and normal event dispatch is performed. This ensures that the platform can
+     * click on any view that has accessibility focus which is semantically equivalent to asking the
+     * view to perform a click accessibility action but more generic as views not implementing click
+     * action correctly can still be activated.
+     *
+     * @hide
+     * @see #isTargetAccessibilityFocus()
+     * @see #setTargetAccessibilityFocus(boolean)
+     */
+    TARGET_ACCESSIBILITY_FOCUS = 0x40000000,
+}
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index a2192cb..500f7b4 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -16,13 +16,13 @@
 }
 
 flag {
-  name: "enable_gestures_library_timer_provider"
+  name: "remove_input_channel_from_windowstate"
   namespace: "input"
-  description: "Set to true to enable timer support for the touchpad Gestures library"
-  bug: "297192727"
- }
+  description: "Do not store a copy of input channel inside WindowState."
+  bug: "323450804"
+}
 
- flag {
+flag {
   name: "enable_input_event_tracing"
   namespace: "input"
   description: "Set to true to enable input event tracing, including always-on tracing on non-user builds"
@@ -37,6 +37,13 @@
 }
 
 flag {
+  name: "split_all_touches"
+  namespace: "input"
+  description: "Set FLAG_SPLIT_TOUCHES to true for all windows, regardless of what they specify. This is essentially deprecating this flag by forcefully enabling the split functionality"
+  bug: "239934827"
+}
+
+flag {
   name: "a11y_crash_on_inconsistent_event_stream"
   namespace: "accessibility"
   description: "Brings back fatal logging for inconsistent event streams originating from accessibility."
@@ -87,13 +94,6 @@
 }
 
 flag {
-  name: "remove_pointer_event_tracking_in_wm"
-  namespace: "input"
-  description: "Remove pointer event tracking in WM after the Pointer Icon Refactor"
-  bug: "315321016"
-}
-
-flag {
   name: "enable_new_mouse_pointer_ballistics"
   namespace: "input"
   description: "Change the acceleration curves for mouse pointer movements to match the touchpad ones"
@@ -157,3 +157,10 @@
   description: "Keyboard classifier that classifies all keyboards into alphabetic or non-alphabetic"
   bug: "263559234"
 }
+
+flag {
+  name: "show_pointers_for_partial_screenshare"
+  namespace: "input"
+  description: "Show touch and pointer indicators when mirroring a single task"
+  bug: "310179437"
+}
diff --git a/libs/input/rust/Android.bp b/libs/input/rust/Android.bp
index 018d199..63853f7 100644
--- a/libs/input/rust/Android.bp
+++ b/libs/input/rust/Android.bp
@@ -24,6 +24,8 @@
         "liblogger",
         "liblog_rust",
         "inputconstants-rust",
+        "libserde",
+        "libserde_json",
     ],
     whole_static_libs: [
         "libinput_from_rust_to_cpp",
diff --git a/libs/input/rust/data_store.rs b/libs/input/rust/data_store.rs
new file mode 100644
index 0000000..6bdcefd
--- /dev/null
+++ b/libs/input/rust/data_store.rs
@@ -0,0 +1,232 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//! Contains the DataStore, used to store input related data in a persistent way.
+
+use crate::input::KeyboardType;
+use log::{debug, error};
+use serde::{Deserialize, Serialize};
+use std::fs::File;
+use std::io::{Read, Write};
+use std::path::Path;
+use std::sync::{Arc, RwLock};
+
+/// Data store to be used to store information that persistent across device reboots.
+pub struct DataStore {
+    file_reader_writer: Box<dyn FileReaderWriter>,
+    inner: Arc<RwLock<DataStoreInner>>,
+}
+
+#[derive(Default)]
+struct DataStoreInner {
+    is_loaded: bool,
+    data: Data,
+}
+
+#[derive(Default, Serialize, Deserialize)]
+struct Data {
+    // Map storing data for keyboard classification for specific devices.
+    #[serde(default)]
+    keyboard_classifications: Vec<KeyboardClassification>,
+    // NOTE: Important things to consider:
+    // - Add any data that needs to be persisted here in this struct.
+    // - Mark all new fields with "#[serde(default)]" for backward compatibility.
+    // - Also, you can't modify the already added fields.
+    // - Can add new nested fields to existing structs. e.g. Add another field to the struct
+    //   KeyboardClassification and mark it "#[serde(default)]".
+}
+
+#[derive(Default, Serialize, Deserialize)]
+struct KeyboardClassification {
+    descriptor: String,
+    keyboard_type: KeyboardType,
+    is_finalized: bool,
+}
+
+impl DataStore {
+    /// Creates a new instance of Data store
+    pub fn new(file_reader_writer: Box<dyn FileReaderWriter>) -> Self {
+        Self { file_reader_writer, inner: Default::default() }
+    }
+
+    fn load(&mut self) {
+        if self.inner.read().unwrap().is_loaded {
+            return;
+        }
+        self.load_internal();
+    }
+
+    fn load_internal(&mut self) {
+        let s = self.file_reader_writer.read();
+        let data: Data = if !s.is_empty() {
+            let deserialize: Data = match serde_json::from_str(&s) {
+                Ok(deserialize) => deserialize,
+                Err(msg) => {
+                    error!("Unable to deserialize JSON data into struct: {:?} -> {:?}", msg, s);
+                    Default::default()
+                }
+            };
+            deserialize
+        } else {
+            Default::default()
+        };
+
+        let mut inner = self.inner.write().unwrap();
+        inner.data = data;
+        inner.is_loaded = true;
+    }
+
+    fn save(&mut self) {
+        let string_to_save;
+        {
+            let inner = self.inner.read().unwrap();
+            string_to_save = serde_json::to_string(&inner.data).unwrap();
+        }
+        self.file_reader_writer.write(string_to_save);
+    }
+
+    /// Get keyboard type of the device (as stored in the data store)
+    pub fn get_keyboard_type(&mut self, descriptor: &String) -> Option<(KeyboardType, bool)> {
+        self.load();
+        let data = &self.inner.read().unwrap().data;
+        for keyboard_classification in data.keyboard_classifications.iter() {
+            if keyboard_classification.descriptor == *descriptor {
+                return Some((
+                    keyboard_classification.keyboard_type,
+                    keyboard_classification.is_finalized,
+                ));
+            }
+        }
+        None
+    }
+
+    /// Save keyboard type of the device in the data store
+    pub fn set_keyboard_type(
+        &mut self,
+        descriptor: &String,
+        keyboard_type: KeyboardType,
+        is_finalized: bool,
+    ) {
+        {
+            let data = &mut self.inner.write().unwrap().data;
+            data.keyboard_classifications
+                .retain(|classification| classification.descriptor != *descriptor);
+            data.keyboard_classifications.push(KeyboardClassification {
+                descriptor: descriptor.to_string(),
+                keyboard_type,
+                is_finalized,
+            })
+        }
+        self.save();
+    }
+}
+
+pub trait FileReaderWriter {
+    fn read(&self) -> String;
+    fn write(&self, to_write: String);
+}
+
+/// Default file reader writer implementation
+pub struct DefaultFileReaderWriter {
+    filepath: String,
+}
+
+impl DefaultFileReaderWriter {
+    /// Creates a new instance of Default file reader writer that can read and write string to a
+    /// particular file in the filesystem
+    pub fn new(filepath: String) -> Self {
+        Self { filepath }
+    }
+}
+
+impl FileReaderWriter for DefaultFileReaderWriter {
+    fn read(&self) -> String {
+        let path = Path::new(&self.filepath);
+        let mut fs_string = String::new();
+        match File::open(path) {
+            Err(e) => error!("couldn't open {:?}: {}", path, e),
+            Ok(mut file) => match file.read_to_string(&mut fs_string) {
+                Err(e) => error!("Couldn't read from {:?}: {}", path, e),
+                Ok(_) => debug!("Successfully read from file {:?}", path),
+            },
+        };
+        fs_string
+    }
+
+    fn write(&self, to_write: String) {
+        let path = Path::new(&self.filepath);
+        match File::create(path) {
+            Err(e) => error!("couldn't create {:?}: {}", path, e),
+            Ok(mut file) => match file.write_all(to_write.as_bytes()) {
+                Err(e) => error!("Couldn't write to {:?}: {}", path, e),
+                Ok(_) => debug!("Successfully saved to file {:?}", path),
+            },
+        };
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::data_store::{
+        test_file_reader_writer::TestFileReaderWriter, DataStore, FileReaderWriter,
+    };
+    use crate::input::KeyboardType;
+
+    #[test]
+    fn test_backward_compatibility_version_1() {
+        // This test tests JSON string that will be created by the first version of data store
+        // This test SHOULD NOT be modified
+        let test_reader_writer = TestFileReaderWriter::new();
+        test_reader_writer.write(r#"{"keyboard_classifications":[{"descriptor":"descriptor","keyboard_type":{"type":"Alphabetic"},"is_finalized":true}]}"#.to_string());
+
+        let mut data_store = DataStore::new(Box::new(test_reader_writer));
+        let (keyboard_type, is_finalized) =
+            data_store.get_keyboard_type(&"descriptor".to_string()).unwrap();
+        assert_eq!(keyboard_type, KeyboardType::Alphabetic);
+        assert!(is_finalized);
+    }
+}
+
+#[cfg(test)]
+pub mod test_file_reader_writer {
+
+    use crate::data_store::FileReaderWriter;
+    use std::sync::{Arc, RwLock};
+
+    #[derive(Default)]
+    struct TestFileReaderWriterInner {
+        fs_string: String,
+    }
+
+    #[derive(Default, Clone)]
+    pub struct TestFileReaderWriter(Arc<RwLock<TestFileReaderWriterInner>>);
+
+    impl TestFileReaderWriter {
+        pub fn new() -> Self {
+            Default::default()
+        }
+    }
+
+    impl FileReaderWriter for TestFileReaderWriter {
+        fn read(&self) -> String {
+            self.0.read().unwrap().fs_string.clone()
+        }
+
+        fn write(&self, fs_string: String) {
+            self.0.write().unwrap().fs_string = fs_string;
+        }
+    }
+}
diff --git a/libs/input/rust/input.rs b/libs/input/rust/input.rs
index 564d94d..90f509d 100644
--- a/libs/input/rust/input.rs
+++ b/libs/input/rust/input.rs
@@ -19,6 +19,8 @@
 use crate::ffi::RustInputDeviceIdentifier;
 use bitflags::bitflags;
 use inputconstants::aidl::android::os::IInputConstants;
+use inputconstants::aidl::android::os::MotionEventFlag::MotionEventFlag;
+use serde::{Deserialize, Serialize};
 use std::fmt;
 
 /// The InputDevice ID.
@@ -193,31 +195,34 @@
 
 bitflags! {
     /// MotionEvent flags.
+    /// The source of truth for the flag definitions are the MotionEventFlag AIDL enum.
+    /// The flag values are redefined here as a bitflags API.
     #[derive(Debug)]
     pub struct MotionFlags: u32 {
         /// FLAG_WINDOW_IS_OBSCURED
-        const WINDOW_IS_OBSCURED = IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_OBSCURED as u32;
+        const WINDOW_IS_OBSCURED = MotionEventFlag::WINDOW_IS_OBSCURED.0 as u32;
         /// FLAG_WINDOW_IS_PARTIALLY_OBSCURED
-        const WINDOW_IS_PARTIALLY_OBSCURED = IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED as u32;
+        const WINDOW_IS_PARTIALLY_OBSCURED = MotionEventFlag::WINDOW_IS_PARTIALLY_OBSCURED.0 as u32;
         /// FLAG_HOVER_EXIT_PENDING
-        const HOVER_EXIT_PENDING = IInputConstants::MOTION_EVENT_FLAG_HOVER_EXIT_PENDING as u32;
+        const HOVER_EXIT_PENDING = MotionEventFlag::HOVER_EXIT_PENDING.0 as u32;
         /// FLAG_IS_GENERATED_GESTURE
-        const IS_GENERATED_GESTURE = IInputConstants::MOTION_EVENT_FLAG_IS_GENERATED_GESTURE as u32;
+        const IS_GENERATED_GESTURE = MotionEventFlag::IS_GENERATED_GESTURE.0 as u32;
         /// FLAG_CANCELED
-        const CANCELED = IInputConstants::INPUT_EVENT_FLAG_CANCELED as u32;
+        const CANCELED = MotionEventFlag::CANCELED.0 as u32;
         /// FLAG_NO_FOCUS_CHANGE
-        const NO_FOCUS_CHANGE = IInputConstants::MOTION_EVENT_FLAG_NO_FOCUS_CHANGE as u32;
+        const NO_FOCUS_CHANGE = MotionEventFlag::NO_FOCUS_CHANGE.0 as u32;
         /// PRIVATE_FLAG_SUPPORTS_ORIENTATION
-        const PRIVATE_SUPPORTS_ORIENTATION = IInputConstants::MOTION_EVENT_PRIVATE_FLAG_SUPPORTS_ORIENTATION as u32;
+        const PRIVATE_FLAG_SUPPORTS_ORIENTATION =
+                MotionEventFlag::PRIVATE_FLAG_SUPPORTS_ORIENTATION.0 as u32;
         /// PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION
-        const PRIVATE_SUPPORTS_DIRECTIONAL_ORIENTATION =
-                IInputConstants::MOTION_EVENT_PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION as u32;
+        const PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION =
+                MotionEventFlag::PRIVATE_FLAG_SUPPORTS_DIRECTIONAL_ORIENTATION.0 as u32;
         /// FLAG_IS_ACCESSIBILITY_EVENT
-        const IS_ACCESSIBILITY_EVENT = IInputConstants::INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT as u32;
+        const IS_ACCESSIBILITY_EVENT = MotionEventFlag::IS_ACCESSIBILITY_EVENT.0 as u32;
         /// FLAG_TAINTED
-        const TAINTED = IInputConstants::INPUT_EVENT_FLAG_TAINTED as u32;
+        const TAINTED = MotionEventFlag::TAINTED.0 as u32;
         /// FLAG_TARGET_ACCESSIBILITY_FOCUS
-        const TARGET_ACCESSIBILITY_FOCUS = IInputConstants::MOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS as u32;
+        const TARGET_ACCESSIBILITY_FOCUS = MotionEventFlag::TARGET_ACCESSIBILITY_FOCUS.0 as u32;
     }
 }
 
@@ -320,9 +325,11 @@
 
 /// A rust enum representation of a Keyboard type.
 #[repr(u32)]
-#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+#[derive(Debug, Default, Copy, Clone, Eq, PartialEq, Serialize, Deserialize)]
+#[serde(tag = "type")]
 pub enum KeyboardType {
     /// KEYBOARD_TYPE_NONE
+    #[default]
     None = input_bindgen::AINPUT_KEYBOARD_TYPE_NONE,
     /// KEYBOARD_TYPE_NON_ALPHABETIC
     NonAlphabetic = input_bindgen::AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC,
@@ -333,10 +340,24 @@
 #[cfg(test)]
 mod tests {
     use crate::input::SourceClass;
+    use crate::MotionFlags;
     use crate::Source;
+    use inputconstants::aidl::android::os::MotionEventFlag::MotionEventFlag;
+
     #[test]
     fn convert_source_class_pointer() {
         let source = Source::from_bits(input_bindgen::AINPUT_SOURCE_CLASS_POINTER).unwrap();
         assert!(source.is_from_class(SourceClass::Pointer));
     }
+
+    /// Ensure all MotionEventFlag constants are re-defined in rust.
+    #[test]
+    fn all_motion_event_flags_defined() {
+        for flag in MotionEventFlag::enum_values() {
+            assert!(
+                MotionFlags::from_bits(flag.0 as u32).is_some(),
+                "MotionEventFlag value {flag:?} is not redefined as a rust MotionFlags"
+            );
+        }
+    }
 }
diff --git a/libs/input/rust/keyboard_classification_config.rs b/libs/input/rust/keyboard_classification_config.rs
new file mode 100644
index 0000000..ab74efb
--- /dev/null
+++ b/libs/input/rust/keyboard_classification_config.rs
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use crate::input::KeyboardType;
+
+// TODO(b/263559234): Categorize some of these to KeyboardType::None based on ability to produce
+//  key events at all. (Requires setup allowing InputDevice to dynamically add/remove
+//  KeyboardInputMapper based on blocklist and KeyEvents in case a KeyboardType::None device ends
+//  up producing a key event)
+pub static CLASSIFIED_DEVICES: &[(
+    /* vendorId */ u16,
+    /* productId */ u16,
+    KeyboardType,
+    /* is_finalized */ bool,
+)] = &[
+    // HP X4000 Wireless Mouse
+    (0x03f0, 0xa407, KeyboardType::NonAlphabetic, true),
+    // Microsoft Wireless Mobile Mouse 6000
+    (0x045e, 0x0745, KeyboardType::NonAlphabetic, true),
+    // Microsoft Surface Precision Mouse
+    (0x045e, 0x0821, KeyboardType::NonAlphabetic, true),
+    // Microsoft Pro IntelliMouse
+    (0x045e, 0x082a, KeyboardType::NonAlphabetic, true),
+    // Microsoft Bluetooth Mouse
+    (0x045e, 0x082f, KeyboardType::NonAlphabetic, true),
+    // Xbox One Elite Series 2 gamepad
+    (0x045e, 0x0b05, KeyboardType::NonAlphabetic, true),
+    // Logitech T400
+    (0x046d, 0x4026, KeyboardType::NonAlphabetic, true),
+    // Logitech M720 Triathlon (Unifying)
+    (0x046d, 0x405e, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Master 2S (Unifying)
+    (0x046d, 0x4069, KeyboardType::NonAlphabetic, true),
+    // Logitech M585 (Unifying)
+    (0x046d, 0x406b, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Anywhere 2 (Unifying)
+    (0x046d, 0x4072, KeyboardType::NonAlphabetic, true),
+    // Logitech Pebble M350
+    (0x046d, 0x4080, KeyboardType::NonAlphabetic, true),
+    // Logitech T630 Ultrathin
+    (0x046d, 0xb00d, KeyboardType::NonAlphabetic, true),
+    // Logitech M558
+    (0x046d, 0xb011, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Master (Bluetooth)
+    (0x046d, 0xb012, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Anywhere 2 (Bluetooth)
+    (0x046d, 0xb013, KeyboardType::NonAlphabetic, true),
+    // Logitech M720 Triathlon (Bluetooth)
+    (0x046d, 0xb015, KeyboardType::NonAlphabetic, true),
+    // Logitech M535
+    (0x046d, 0xb016, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Master / Anywhere 2 (Bluetooth)
+    (0x046d, 0xb017, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Master 2S (Bluetooth)
+    (0x046d, 0xb019, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Anywhere 2S (Bluetooth)
+    (0x046d, 0xb01a, KeyboardType::NonAlphabetic, true),
+    // Logitech M585/M590 (Bluetooth)
+    (0x046d, 0xb01b, KeyboardType::NonAlphabetic, true),
+    // Logitech G603 Lightspeed Gaming Mouse (Bluetooth)
+    (0x046d, 0xb01c, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Master (Bluetooth)
+    (0x046d, 0xb01e, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Anywhere 2 (Bluetooth)
+    (0x046d, 0xb01f, KeyboardType::NonAlphabetic, true),
+    // Logitech MX Master 3 (Bluetooth)
+    (0x046d, 0xb023, KeyboardType::NonAlphabetic, true),
+    // Logitech G604 Lightspeed Gaming Mouse (Bluetooth)
+    (0x046d, 0xb024, KeyboardType::NonAlphabetic, true),
+    // Logitech Spotlight Presentation Remote (Bluetooth)
+    (0x046d, 0xb503, KeyboardType::NonAlphabetic, true),
+    // Logitech R500 (Bluetooth)
+    (0x046d, 0xb505, KeyboardType::NonAlphabetic, true),
+    // Logitech M500s
+    (0x046d, 0xc093, KeyboardType::NonAlphabetic, true),
+    // Logitech Spotlight Presentation Remote (USB dongle)
+    (0x046d, 0xc53e, KeyboardType::NonAlphabetic, true),
+    // Elecom Enelo IR LED Mouse 350
+    (0x056e, 0x0134, KeyboardType::NonAlphabetic, true),
+    // Elecom EPRIM Blue LED 5 button mouse 228
+    (0x056e, 0x0141, KeyboardType::NonAlphabetic, true),
+    // Elecom Blue LED Mouse 203
+    (0x056e, 0x0159, KeyboardType::NonAlphabetic, true),
+    // Zebra LS2208 barcode scanner
+    (0x05e0, 0x1200, KeyboardType::NonAlphabetic, true),
+    // RDing FootSwitch1F1
+    (0x0c45, 0x7403, KeyboardType::NonAlphabetic, true),
+    // SteelSeries Sensei RAW Frost Blue
+    (0x1038, 0x1369, KeyboardType::NonAlphabetic, true),
+    // SteelSeries Rival 3 Wired
+    (0x1038, 0x1824, KeyboardType::NonAlphabetic, true),
+    // SteelSeries Rival 3 Wireless (USB dongle)
+    (0x1038, 0x1830, KeyboardType::NonAlphabetic, true),
+    // Yubico.com Yubikey
+    (0x1050, 0x0010, KeyboardType::NonAlphabetic, true),
+    // Yubico.com Yubikey 4 OTP+U2F+CCID
+    (0x1050, 0x0407, KeyboardType::NonAlphabetic, true),
+    // Lenovo USB-C Wired Compact Mouse
+    (0x17ef, 0x6123, KeyboardType::NonAlphabetic, true),
+    // Corsair Katar Pro Wireless (USB dongle)
+    (0x1b1c, 0x1b94, KeyboardType::NonAlphabetic, true),
+    // Corsair Katar Pro Wireless (Bluetooth)
+    (0x1bae, 0x1b1c, KeyboardType::NonAlphabetic, true),
+    // Kensington Pro Fit Full-size
+    (0x1bcf, 0x08a0, KeyboardType::NonAlphabetic, true),
+    // Huion HS64
+    (0x256c, 0x006d, KeyboardType::NonAlphabetic, true),
+    // XP-Pen Star G640
+    (0x28bd, 0x0914, KeyboardType::NonAlphabetic, true),
+    // XP-Pen Artist 12 Pro
+    (0x28bd, 0x091f, KeyboardType::NonAlphabetic, true),
+    // XP-Pen Deco mini7W
+    (0x28bd, 0x0928, KeyboardType::NonAlphabetic, true),
+];
diff --git a/libs/input/rust/keyboard_classifier.rs b/libs/input/rust/keyboard_classifier.rs
index 1063fac..3c789b4 100644
--- a/libs/input/rust/keyboard_classifier.rs
+++ b/libs/input/rust/keyboard_classifier.rs
@@ -31,39 +31,37 @@
 //!    across multiple device connections in a time period, then change type to
 //!    KeyboardType::NonAlphabetic. Once changed, it can still change back to Alphabetic
 //!    (i.e. verified = false).
-//!
-//! TODO(b/263559234): Data store implementation to store information about past classification
 
+use crate::data_store::DataStore;
 use crate::input::{DeviceId, InputDevice, KeyboardType};
+use crate::keyboard_classification_config::CLASSIFIED_DEVICES;
 use crate::{DeviceClass, ModifierState};
 use std::collections::HashMap;
 
 /// The KeyboardClassifier is used to classify a keyboard device into non-keyboard, alphabetic
 /// keyboard or non-alphabetic keyboard
-#[derive(Default)]
 pub struct KeyboardClassifier {
     device_map: HashMap<DeviceId, KeyboardInfo>,
+    data_store: DataStore,
 }
 
 struct KeyboardInfo {
-    _device: InputDevice,
+    device: InputDevice,
     keyboard_type: KeyboardType,
     is_finalized: bool,
 }
 
 impl KeyboardClassifier {
     /// Create a new KeyboardClassifier
-    pub fn new() -> Self {
-        Default::default()
+    pub fn new(data_store: DataStore) -> Self {
+        Self { device_map: HashMap::new(), data_store }
     }
 
     /// Adds keyboard to KeyboardClassifier
     pub fn notify_keyboard_changed(&mut self, device: InputDevice) {
         let (keyboard_type, is_finalized) = self.classify_keyboard(&device);
-        self.device_map.insert(
-            device.device_id,
-            KeyboardInfo { _device: device, keyboard_type, is_finalized },
-        );
+        self.device_map
+            .insert(device.device_id, KeyboardInfo { device, keyboard_type, is_finalized });
     }
 
     /// Get keyboard type for a tracked keyboard in KeyboardClassifier
@@ -106,11 +104,16 @@
             if Self::is_alphabetic_key(&evdev_code) {
                 keyboard.keyboard_type = KeyboardType::Alphabetic;
                 keyboard.is_finalized = true;
+                self.data_store.set_keyboard_type(
+                    &keyboard.device.identifier.descriptor,
+                    keyboard.keyboard_type,
+                    keyboard.is_finalized,
+                );
             }
         }
     }
 
-    fn classify_keyboard(&self, device: &InputDevice) -> (KeyboardType, bool) {
+    fn classify_keyboard(&mut self, device: &InputDevice) -> (KeyboardType, bool) {
         // This should never happen but having keyboard device class is necessary to be classified
         // as any type of keyboard.
         if !device.classes.contains(DeviceClass::Keyboard) {
@@ -126,6 +129,21 @@
                 (KeyboardType::NonAlphabetic, true)
             };
         }
+
+        // Check in data store
+        if let Some((keyboard_type, is_finalized)) =
+            self.data_store.get_keyboard_type(&device.identifier.descriptor)
+        {
+            return (keyboard_type, is_finalized);
+        }
+
+        // Check in known device list for classification
+        for (vendor, product, keyboard_type, is_finalized) in CLASSIFIED_DEVICES.iter() {
+            if device.identifier.vendor == *vendor && device.identifier.product == *product {
+                return (*keyboard_type, *is_finalized);
+            }
+        }
+
         // Any composite device with multiple device classes should be categorized as non-alphabetic
         // keyboard initially
         if device.classes.contains(DeviceClass::Touch)
@@ -168,17 +186,20 @@
 
 #[cfg(test)]
 mod tests {
+    use crate::data_store::{test_file_reader_writer::TestFileReaderWriter, DataStore};
     use crate::input::{DeviceId, InputDevice, KeyboardType};
+    use crate::keyboard_classification_config::CLASSIFIED_DEVICES;
     use crate::keyboard_classifier::KeyboardClassifier;
     use crate::{DeviceClass, ModifierState, RustInputDeviceIdentifier};
 
     static DEVICE_ID: DeviceId = DeviceId(1);
+    static SECOND_DEVICE_ID: DeviceId = DeviceId(2);
     static KEY_A: i32 = 30;
     static KEY_1: i32 = 2;
 
     #[test]
     fn classify_external_alphabetic_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard | DeviceClass::AlphabeticKey | DeviceClass::External,
         ));
@@ -188,7 +209,7 @@
 
     #[test]
     fn classify_external_non_alphabetic_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier
             .notify_keyboard_changed(create_device(DeviceClass::Keyboard | DeviceClass::External));
         assert_eq!(classifier.get_keyboard_type(DEVICE_ID), KeyboardType::NonAlphabetic);
@@ -197,7 +218,7 @@
 
     #[test]
     fn classify_mouse_pretending_as_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Cursor
@@ -210,7 +231,7 @@
 
     #[test]
     fn classify_touchpad_pretending_as_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Touchpad
@@ -223,7 +244,7 @@
 
     #[test]
     fn classify_stylus_pretending_as_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::ExternalStylus
@@ -236,7 +257,7 @@
 
     #[test]
     fn classify_dpad_pretending_as_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Dpad
@@ -249,7 +270,7 @@
 
     #[test]
     fn classify_joystick_pretending_as_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Joystick
@@ -262,7 +283,7 @@
 
     #[test]
     fn classify_gamepad_pretending_as_keyboard() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Gamepad
@@ -275,7 +296,7 @@
 
     #[test]
     fn reclassify_keyboard_on_alphabetic_key_event() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Dpad
@@ -293,7 +314,7 @@
 
     #[test]
     fn dont_reclassify_keyboard_on_non_alphabetic_key_event() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Dpad
@@ -311,7 +332,7 @@
 
     #[test]
     fn dont_reclassify_keyboard_on_alphabetic_key_event_with_modifiers() {
-        let mut classifier = KeyboardClassifier::new();
+        let mut classifier = create_classifier();
         classifier.notify_keyboard_changed(create_device(
             DeviceClass::Keyboard
                 | DeviceClass::Dpad
@@ -326,20 +347,82 @@
         assert!(!classifier.is_finalized(DEVICE_ID));
     }
 
+    #[test]
+    fn classify_known_devices() {
+        let mut classifier = create_classifier();
+        for (vendor, product, keyboard_type, is_finalized) in CLASSIFIED_DEVICES.iter() {
+            classifier
+                .notify_keyboard_changed(create_device_with_vendor_product_ids(*vendor, *product));
+            assert_eq!(classifier.get_keyboard_type(DEVICE_ID), *keyboard_type);
+            assert_eq!(classifier.is_finalized(DEVICE_ID), *is_finalized);
+        }
+    }
+
+    #[test]
+    fn classify_previously_reclassified_devices() {
+        let test_reader_writer = TestFileReaderWriter::new();
+        {
+            let mut classifier =
+                KeyboardClassifier::new(DataStore::new(Box::new(test_reader_writer.clone())));
+            let device = create_device(
+                DeviceClass::Keyboard
+                    | DeviceClass::Dpad
+                    | DeviceClass::AlphabeticKey
+                    | DeviceClass::External,
+            );
+            classifier.notify_keyboard_changed(device);
+            classifier.process_key(DEVICE_ID, KEY_A, ModifierState::None);
+        }
+
+        // Re-create classifier and data store to mimic a reboot (but use the same file system
+        // reader writer)
+        {
+            let mut classifier =
+                KeyboardClassifier::new(DataStore::new(Box::new(test_reader_writer.clone())));
+            let device = InputDevice {
+                device_id: SECOND_DEVICE_ID,
+                identifier: create_identifier(/* vendor= */ 234, /* product= */ 345),
+                classes: DeviceClass::Keyboard
+                    | DeviceClass::Dpad
+                    | DeviceClass::AlphabeticKey
+                    | DeviceClass::External,
+            };
+            classifier.notify_keyboard_changed(device);
+            assert_eq!(classifier.get_keyboard_type(SECOND_DEVICE_ID), KeyboardType::Alphabetic);
+            assert!(classifier.is_finalized(SECOND_DEVICE_ID));
+        }
+    }
+
+    fn create_classifier() -> KeyboardClassifier {
+        KeyboardClassifier::new(DataStore::new(Box::new(TestFileReaderWriter::new())))
+    }
+
+    fn create_identifier(vendor: u16, product: u16) -> RustInputDeviceIdentifier {
+        RustInputDeviceIdentifier {
+            name: "test_device".to_string(),
+            location: "location".to_string(),
+            unique_id: "unique_id".to_string(),
+            bus: 123,
+            vendor,
+            product,
+            version: 567,
+            descriptor: "descriptor".to_string(),
+        }
+    }
+
     fn create_device(classes: DeviceClass) -> InputDevice {
         InputDevice {
             device_id: DEVICE_ID,
-            identifier: RustInputDeviceIdentifier {
-                name: "test_device".to_string(),
-                location: "location".to_string(),
-                unique_id: "unique_id".to_string(),
-                bus: 123,
-                vendor: 234,
-                product: 345,
-                version: 567,
-                descriptor: "descriptor".to_string(),
-            },
+            identifier: create_identifier(/* vendor= */ 234, /* product= */ 345),
             classes,
         }
     }
+
+    fn create_device_with_vendor_product_ids(vendor: u16, product: u16) -> InputDevice {
+        InputDevice {
+            device_id: DEVICE_ID,
+            identifier: create_identifier(vendor, product),
+            classes: DeviceClass::Keyboard | DeviceClass::AlphabeticKey | DeviceClass::External,
+        }
+    }
 }
diff --git a/libs/input/rust/lib.rs b/libs/input/rust/lib.rs
index 5010475..008f675 100644
--- a/libs/input/rust/lib.rs
+++ b/libs/input/rust/lib.rs
@@ -16,10 +16,13 @@
 
 //! The rust component of libinput.
 
+mod data_store;
 mod input;
 mod input_verifier;
+mod keyboard_classification_config;
 mod keyboard_classifier;
 
+pub use data_store::{DataStore, DefaultFileReaderWriter};
 pub use input::{
     DeviceClass, DeviceId, InputDevice, ModifierState, MotionAction, MotionFlags, Source,
 };
@@ -148,7 +151,14 @@
 }
 
 fn create_keyboard_classifier() -> Box<KeyboardClassifier> {
-    Box::new(KeyboardClassifier::new())
+    // Future design: Make this data store singleton by passing it to C++ side and making it global
+    // and pass by reference to components that need to store persistent data.
+    //
+    // Currently only used by rust keyboard classifier so keeping it here.
+    let data_store = DataStore::new(Box::new(DefaultFileReaderWriter::new(
+        "/data/system/inputflinger-data.json".to_string(),
+    )));
+    Box::new(KeyboardClassifier::new(data_store))
 }
 
 fn notify_keyboard_changed(
diff --git a/libs/input/tests/Android.bp b/libs/input/tests/Android.bp
index e9d799e..132866b 100644
--- a/libs/input/tests/Android.bp
+++ b/libs/input/tests/Android.bp
@@ -23,6 +23,7 @@
         "InputVerifier_test.cpp",
         "MotionPredictor_test.cpp",
         "MotionPredictorMetricsManager_test.cpp",
+        "Resampler_test.cpp",
         "RingBuffer_test.cpp",
         "TfLiteMotionPredictor_test.cpp",
         "TouchResampling_test.cpp",
diff --git a/libs/input/tests/InputChannel_test.cpp b/libs/input/tests/InputChannel_test.cpp
index 02d4c07..25356cf 100644
--- a/libs/input/tests/InputChannel_test.cpp
+++ b/libs/input/tests/InputChannel_test.cpp
@@ -65,11 +65,7 @@
 
     ASSERT_EQ(OK, result) << "should have successfully opened a channel pair";
 
-    // Name
-    EXPECT_STREQ("channel name (server)", serverChannel->getName().c_str())
-            << "server channel should have suffixed name";
-    EXPECT_STREQ("channel name (client)", clientChannel->getName().c_str())
-            << "client channel should have suffixed name";
+    EXPECT_EQ(serverChannel->getName(), clientChannel->getName());
 
     // Server->Client communication
     InputMessage serverMsg = {};
@@ -78,9 +74,10 @@
     EXPECT_EQ(OK, serverChannel->sendMessage(&serverMsg))
             << "server channel should be able to send message to client channel";
 
-    InputMessage clientMsg;
-    EXPECT_EQ(OK, clientChannel->receiveMessage(&clientMsg))
+    android::base::Result<InputMessage> clientMsgResult = clientChannel->receiveMessage();
+    ASSERT_TRUE(clientMsgResult.ok())
             << "client channel should be able to receive message from server channel";
+    const InputMessage& clientMsg = *clientMsgResult;
     EXPECT_EQ(serverMsg.header.type, clientMsg.header.type)
             << "client channel should receive the correct message from server channel";
     EXPECT_EQ(serverMsg.body.key.action, clientMsg.body.key.action)
@@ -94,9 +91,10 @@
     EXPECT_EQ(OK, clientChannel->sendMessage(&clientReply))
             << "client channel should be able to send message to server channel";
 
-    InputMessage serverReply;
-    EXPECT_EQ(OK, serverChannel->receiveMessage(&serverReply))
+    android::base::Result<InputMessage> serverReplyResult = serverChannel->receiveMessage();
+    ASSERT_TRUE(serverReplyResult.ok())
             << "server channel should be able to receive message from client channel";
+    const InputMessage& serverReply = *serverReplyResult;
     EXPECT_EQ(clientReply.header.type, serverReply.header.type)
             << "server channel should receive the correct message from client channel";
     EXPECT_EQ(clientReply.header.seq, serverReply.header.seq)
@@ -134,9 +132,10 @@
             << "client channel should observe that message is available before receiving it";
 
     // Receive (consume) the message.
-    InputMessage clientMsg;
-    EXPECT_EQ(OK, receiverChannel->receiveMessage(&clientMsg))
+    android::base::Result<InputMessage> clientMsgResult = receiverChannel->receiveMessage();
+    ASSERT_TRUE(clientMsgResult.ok())
             << "client channel should be able to receive message from server channel";
+    const InputMessage& clientMsg = *clientMsgResult;
     EXPECT_EQ(serverMsg.header.type, clientMsg.header.type)
             << "client channel should receive the correct message from server channel";
     EXPECT_EQ(serverMsg.body.key.action, clientMsg.body.key.action)
@@ -156,8 +155,8 @@
     ASSERT_EQ(OK, result)
             << "should have successfully opened a channel pair";
 
-    InputMessage msg;
-    EXPECT_EQ(WOULD_BLOCK, clientChannel->receiveMessage(&msg))
+    android::base::Result<InputMessage> msgResult = clientChannel->receiveMessage();
+    EXPECT_EQ(WOULD_BLOCK, msgResult.error().code())
             << "receiveMessage should have returned WOULD_BLOCK";
 }
 
@@ -172,8 +171,8 @@
 
     serverChannel.reset(); // close server channel
 
-    InputMessage msg;
-    EXPECT_EQ(DEAD_OBJECT, clientChannel->receiveMessage(&msg))
+    android::base::Result<InputMessage> msgResult = clientChannel->receiveMessage();
+    EXPECT_EQ(DEAD_OBJECT, msgResult.error().code())
             << "receiveMessage should have returned DEAD_OBJECT";
 }
 
@@ -207,7 +206,7 @@
         MotionClassification::DEEP_PRESS,
     };
 
-    InputMessage serverMsg = {}, clientMsg;
+    InputMessage serverMsg = {};
     serverMsg.header.type = InputMessage::Type::MOTION;
     serverMsg.header.seq = 1;
     serverMsg.body.motion.pointerCount = 1;
@@ -218,11 +217,13 @@
         EXPECT_EQ(OK, serverChannel->sendMessage(&serverMsg))
                 << "server channel should be able to send message to client channel";
 
-        EXPECT_EQ(OK, clientChannel->receiveMessage(&clientMsg))
+        android::base::Result<InputMessage> clientMsgResult = clientChannel->receiveMessage();
+        ASSERT_TRUE(clientMsgResult.ok())
                 << "client channel should be able to receive message from server channel";
+        const InputMessage& clientMsg = *clientMsgResult;
         EXPECT_EQ(serverMsg.header.type, clientMsg.header.type);
-        EXPECT_EQ(classification, clientMsg.body.motion.classification) <<
-                "Expected to receive " << motionClassificationToString(classification);
+        EXPECT_EQ(classification, clientMsg.body.motion.classification)
+                << "Expected to receive " << motionClassificationToString(classification);
     }
 }
 
diff --git a/libs/input/tests/InputEvent_test.cpp b/libs/input/tests/InputEvent_test.cpp
index 3717f49..a67e1ef 100644
--- a/libs/input/tests/InputEvent_test.cpp
+++ b/libs/input/tests/InputEvent_test.cpp
@@ -371,8 +371,8 @@
                       mTransform, 2.0f, 2.1f, AMOTION_EVENT_INVALID_CURSOR_POSITION,
                       AMOTION_EVENT_INVALID_CURSOR_POSITION, mRawTransform, ARBITRARY_DOWN_TIME,
                       ARBITRARY_EVENT_TIME, 2, mPointerProperties, mSamples[0].pointerCoords);
-    event->addSample(ARBITRARY_EVENT_TIME + 1, mSamples[1].pointerCoords);
-    event->addSample(ARBITRARY_EVENT_TIME + 2, mSamples[2].pointerCoords);
+    event->addSample(ARBITRARY_EVENT_TIME + 1, mSamples[1].pointerCoords, event->getId());
+    event->addSample(ARBITRARY_EVENT_TIME + 2, mSamples[2].pointerCoords, event->getId());
 }
 
 void MotionEventTest::assertEqualsEventWithHistory(const MotionEvent* event) {
@@ -591,6 +591,22 @@
     ASSERT_EQ(event.getX(0), copy.getX(0));
 }
 
+TEST_F(MotionEventTest, CheckEventIdWithHistoryIsIncremented) {
+    MotionEvent event;
+    constexpr int32_t ARBITRARY_ID = 42;
+    event.initialize(ARBITRARY_ID, 2, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID, INVALID_HMAC,
+                     AMOTION_EVENT_ACTION_MOVE, 0, 0, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE,
+                     AMOTION_EVENT_BUTTON_PRIMARY, MotionClassification::NONE, mTransform, 0, 0,
+                     AMOTION_EVENT_INVALID_CURSOR_POSITION, AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                     mRawTransform, ARBITRARY_DOWN_TIME, ARBITRARY_EVENT_TIME, 2,
+                     mPointerProperties, mSamples[0].pointerCoords);
+    ASSERT_EQ(event.getId(), ARBITRARY_ID);
+    event.addSample(ARBITRARY_EVENT_TIME + 1, mSamples[1].pointerCoords, ARBITRARY_ID + 1);
+    ASSERT_EQ(event.getId(), ARBITRARY_ID + 1);
+    event.addSample(ARBITRARY_EVENT_TIME + 2, mSamples[2].pointerCoords, ARBITRARY_ID + 2);
+    ASSERT_EQ(event.getId(), ARBITRARY_ID + 2);
+}
+
 TEST_F(MotionEventTest, SplitPointerDown) {
     MotionEvent event = MotionEventBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
                                 .downTime(ARBITRARY_DOWN_TIME)
diff --git a/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp b/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp
index f49469c..467c3b4 100644
--- a/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp
+++ b/libs/input/tests/InputPublisherAndConsumerNoResampling_test.cpp
@@ -52,7 +52,7 @@
     const int32_t action;
     const nsecs_t downTime;
     const uint32_t seq;
-    const int32_t eventId;
+    int32_t eventId;
     const int32_t deviceId = 1;
     const uint32_t source = AINPUT_SOURCE_TOUCHSCREEN;
     const ui::LogicalDisplayId displayId = ui::LogicalDisplayId::DEFAULT;
@@ -291,6 +291,7 @@
     void publishAndConsumeKeyEvent();
     void publishAndConsumeMotionStream();
     void publishAndConsumeMotionDown(nsecs_t downTime);
+    void publishAndConsumeSinglePointerMultipleSamples(const size_t nSamples);
     void publishAndConsumeBatchedMotionMove(nsecs_t downTime);
     void publishAndConsumeFocusEvent();
     void publishAndConsumeCaptureEvent();
@@ -298,6 +299,7 @@
     void publishAndConsumeTouchModeEvent();
     void publishAndConsumeMotionEvent(int32_t action, nsecs_t downTime,
                                       const std::vector<Pointer>& pointers);
+
     void TearDown() override {
         // Destroy the consumer, flushing any of the pending ack's.
         sendMessage(LooperMessage::DESTROY_CONSUMER);
@@ -394,8 +396,9 @@
             break;
         }
         case LooperMessage::CREATE_CONSUMER: {
-            mConsumer = std::make_unique<InputConsumerNoResampling>(std::move(mClientChannel),
-                                                                    mLooper, *this);
+            mConsumer =
+                    std::make_unique<InputConsumerNoResampling>(std::move(mClientChannel), mLooper,
+                                                                *this, /*resampler=*/nullptr);
             break;
         }
         case LooperMessage::DESTROY_CONSUMER: {
@@ -519,6 +522,123 @@
                                  {Pointer{.id = 0, .x = 20, .y = 30}});
 }
 
+/*
+ * Decompose a potential multi-sampled MotionEvent into multiple MotionEvents
+ * with a single sample.
+ */
+std::vector<MotionEvent> splitBatchedMotionEvent(const MotionEvent& batchedMotionEvent) {
+    std::vector<MotionEvent> singleMotionEvents;
+    const size_t batchSize = batchedMotionEvent.getHistorySize() + 1;
+    for (size_t i = 0; i < batchSize; ++i) {
+        MotionEvent singleMotionEvent;
+        singleMotionEvent
+                .initialize(batchedMotionEvent.getId(), batchedMotionEvent.getDeviceId(),
+                            batchedMotionEvent.getSource(), batchedMotionEvent.getDisplayId(),
+                            batchedMotionEvent.getHmac(), batchedMotionEvent.getAction(),
+                            batchedMotionEvent.getActionButton(), batchedMotionEvent.getFlags(),
+                            batchedMotionEvent.getEdgeFlags(), batchedMotionEvent.getMetaState(),
+                            batchedMotionEvent.getButtonState(),
+                            batchedMotionEvent.getClassification(),
+                            batchedMotionEvent.getTransform(), batchedMotionEvent.getXPrecision(),
+                            batchedMotionEvent.getYPrecision(),
+                            batchedMotionEvent.getRawXCursorPosition(),
+                            batchedMotionEvent.getRawYCursorPosition(),
+                            batchedMotionEvent.getRawTransform(), batchedMotionEvent.getDownTime(),
+                            batchedMotionEvent.getHistoricalEventTime(/*historicalIndex=*/i),
+                            batchedMotionEvent.getPointerCount(),
+                            batchedMotionEvent.getPointerProperties(),
+                            (batchedMotionEvent.getSamplePointerCoords() + i));
+        singleMotionEvents.push_back(singleMotionEvent);
+    }
+    return singleMotionEvents;
+}
+
+/*
+ * Simulates a single pointer touching the screen and leaving it there for a period of time.
+ * Publishes a DOWN event and consumes it right away. Then, publishes a sequence of MOVE
+ * samples for the same pointer, and waits until it has been consumed. Splits batched MotionEvents
+ * into individual samples. Checks the consumed MotionEvents against the published ones.
+ * This test is non-deterministic because it depends on the timing of arrival of events to the
+ * socket.
+ *
+ * @param nSamples The number of MOVE samples to publish before attempting consumption.
+ */
+void InputPublisherAndConsumerNoResamplingTest::publishAndConsumeSinglePointerMultipleSamples(
+        const size_t nSamples) {
+    const nsecs_t downTime = systemTime(SYSTEM_TIME_MONOTONIC);
+    const Pointer pointer(0, 20, 30);
+
+    const PublishMotionArgs argsDown(AMOTION_EVENT_ACTION_DOWN, downTime, {pointer}, mSeq);
+    const nsecs_t publishTimeOfDown = systemTime(SYSTEM_TIME_MONOTONIC);
+    publishMotionEvent(*mPublisher, argsDown);
+
+    // Consume the DOWN event.
+    ASSERT_TRUE(mMotionEvents.popWithTimeout(TIMEOUT).has_value());
+
+    verifyFinishedSignal(*mPublisher, mSeq, publishTimeOfDown);
+
+    std::vector<nsecs_t> publishTimes;
+    std::vector<PublishMotionArgs> argsMoves;
+    std::queue<uint32_t> publishedSequenceNumbers;
+
+    // Block Looper to increase the chance of batching events
+    {
+        std::scoped_lock l(mLock);
+        mLooperMayProceed = false;
+    }
+    sendMessage(LooperMessage::BLOCK_LOOPER);
+    {
+        std::unique_lock l(mLock);
+        mNotifyLooperWaiting.wait(l, [this] { return mLooperIsBlocked; });
+    }
+
+    uint32_t firstSampleId;
+    for (size_t i = 0; i < nSamples; ++i) {
+        publishedSequenceNumbers.push(++mSeq);
+        PublishMotionArgs argsMove(AMOTION_EVENT_ACTION_MOVE, downTime, {pointer}, mSeq);
+        // A batched MotionEvent only has a single event id, currently determined when the
+        // MotionEvent is initialized. Therefore, to pass the eventId comparisons inside
+        // verifyArgsEqualToEvent, we need to override the event id of the published args to match
+        // the event id of the first sample inside the MotionEvent.
+        if (i == 0) {
+            firstSampleId = argsMove.eventId;
+        }
+        argsMove.eventId = firstSampleId;
+        publishTimes.push_back(systemTime(SYSTEM_TIME_MONOTONIC));
+        argsMoves.push_back(argsMove);
+        publishMotionEvent(*mPublisher, argsMove);
+    }
+
+    std::vector<MotionEvent> singleSampledMotionEvents;
+
+    // Unblock Looper
+    {
+        std::scoped_lock l(mLock);
+        mLooperMayProceed = true;
+    }
+    mNotifyLooperMayProceed.notify_all();
+
+    // We have no control over the socket behavior, so the consumer can receive
+    // the motion as a batched event, or as a sequence of multiple single-sample MotionEvents (or a
+    // mix of those)
+    while (singleSampledMotionEvents.size() != nSamples) {
+        const std::optional<std::unique_ptr<MotionEvent>> batchedMotionEvent =
+                mMotionEvents.popWithTimeout(TIMEOUT);
+        // The events received by these calls are never null
+        std::vector<MotionEvent> splitMotionEvents = splitBatchedMotionEvent(**batchedMotionEvent);
+        singleSampledMotionEvents.insert(singleSampledMotionEvents.end(), splitMotionEvents.begin(),
+                                         splitMotionEvents.end());
+    }
+
+    // Consumer can choose to finish events in any order. For simplicity,
+    // we verify the events in sequence (since that is how the test is implemented).
+    for (size_t i = 0; i < nSamples; ++i) {
+        verifyArgsEqualToEvent(argsMoves[i], singleSampledMotionEvents[i]);
+        verifyFinishedSignal(*mPublisher, publishedSequenceNumbers.front(), publishTimes[i]);
+        publishedSequenceNumbers.pop();
+    }
+}
+
 void InputPublisherAndConsumerNoResamplingTest::publishAndConsumeBatchedMotionMove(
         nsecs_t downTime) {
     uint32_t seq = mSeq++;
@@ -814,4 +934,8 @@
     ASSERT_NO_FATAL_FAILURE(publishAndConsumeTouchModeEvent());
 }
 
+TEST_F(InputPublisherAndConsumerNoResamplingTest, PublishAndConsumeSinglePointer) {
+    publishAndConsumeSinglePointerMultipleSamples(3);
+}
+
 } // namespace android
diff --git a/libs/input/tests/MotionPredictorMetricsManager_test.cpp b/libs/input/tests/MotionPredictorMetricsManager_test.cpp
index cc41eeb..0542f39 100644
--- a/libs/input/tests/MotionPredictorMetricsManager_test.cpp
+++ b/libs/input/tests/MotionPredictorMetricsManager_test.cpp
@@ -167,7 +167,8 @@
                         .y(predictionPoints[i].position[0])
                         .axis(AMOTION_EVENT_AXIS_PRESSURE, predictionPoints[i].pressure)
                         .buildCoords();
-        predictionEvent.addSample(predictionPoints[i].targetTimestamp, &coords);
+        predictionEvent.addSample(predictionPoints[i].targetTimestamp, &coords,
+                                  predictionEvent.getId());
     }
     return predictionEvent;
 }
diff --git a/libs/input/tests/MotionPredictor_test.cpp b/libs/input/tests/MotionPredictor_test.cpp
index d077760..106e686 100644
--- a/libs/input/tests/MotionPredictor_test.cpp
+++ b/libs/input/tests/MotionPredictor_test.cpp
@@ -70,7 +70,7 @@
 }
 
 TEST(JerkTrackerTest, JerkReadiness) {
-    JerkTracker jerkTracker(true);
+    JerkTracker jerkTracker(/*normalizedDt=*/true, /*alpha=*/1);
     EXPECT_FALSE(jerkTracker.jerkMagnitude());
     jerkTracker.pushSample(/*timestamp=*/0, 20, 50);
     EXPECT_FALSE(jerkTracker.jerkMagnitude());
@@ -87,7 +87,8 @@
 }
 
 TEST(JerkTrackerTest, JerkCalculationNormalizedDtTrue) {
-    JerkTracker jerkTracker(true);
+    const float alpha = .5;
+    JerkTracker jerkTracker(/*normalizedDt=*/true, alpha);
     jerkTracker.pushSample(/*timestamp=*/0, 20, 50);
     jerkTracker.pushSample(/*timestamp=*/1, 25, 53);
     jerkTracker.pushSample(/*timestamp=*/2, 30, 60);
@@ -118,11 +119,13 @@
      * y'':  3 -> -15
      * y''': -18
      */
-    EXPECT_FLOAT_EQ(jerkTracker.jerkMagnitude().value(), std::hypot(-50, -18));
+    const float newJerk = (1 - alpha) * std::hypot(10, -1) + alpha * std::hypot(-50, -18);
+    EXPECT_FLOAT_EQ(jerkTracker.jerkMagnitude().value(), newJerk);
 }
 
 TEST(JerkTrackerTest, JerkCalculationNormalizedDtFalse) {
-    JerkTracker jerkTracker(false);
+    const float alpha = .5;
+    JerkTracker jerkTracker(/*normalizedDt=*/false, alpha);
     jerkTracker.pushSample(/*timestamp=*/0, 20, 50);
     jerkTracker.pushSample(/*timestamp=*/10, 25, 53);
     jerkTracker.pushSample(/*timestamp=*/20, 30, 60);
@@ -153,11 +156,12 @@
      * y'':  .03 -> -.125 (delta above, divide by 10)
      * y''': -.0155 (delta above, divide by 10)
      */
-    EXPECT_FLOAT_EQ(jerkTracker.jerkMagnitude().value(), std::hypot(-.0375, -.0155));
+    const float newJerk = (1 - alpha) * std::hypot(.01, -.001) + alpha * std::hypot(-.0375, -.0155);
+    EXPECT_FLOAT_EQ(jerkTracker.jerkMagnitude().value(), newJerk);
 }
 
 TEST(JerkTrackerTest, JerkCalculationAfterReset) {
-    JerkTracker jerkTracker(true);
+    JerkTracker jerkTracker(/*normalizedDt=*/true, /*alpha=*/1);
     jerkTracker.pushSample(/*timestamp=*/0, 20, 50);
     jerkTracker.pushSample(/*timestamp=*/1, 25, 53);
     jerkTracker.pushSample(/*timestamp=*/2, 30, 60);
@@ -291,15 +295,22 @@
     MotionPredictor predictor(/*predictionTimestampOffsetNanos=*/0,
                               []() { return true /*enable prediction*/; });
 
-    // Jerk is medium (1.05 normalized, which is halfway between LOW_JANK and HIGH_JANK)
-    predictor.record(getMotionEvent(DOWN, 0, 5.2, 20ms));
-    predictor.record(getMotionEvent(MOVE, 0, 11.5, 30ms));
-    predictor.record(getMotionEvent(MOVE, 0, 22, 40ms));
-    predictor.record(getMotionEvent(MOVE, 0, 37.75, 50ms));
-    predictor.record(getMotionEvent(MOVE, 0, 59.8, 60ms));
+    // Create another instance of TfLiteMotionPredictorModel to read config details.
+    std::unique_ptr<TfLiteMotionPredictorModel> testTfLiteModel =
+            TfLiteMotionPredictorModel::create();
+    const float mediumJerk =
+            (testTfLiteModel->config().lowJerk + testTfLiteModel->config().highJerk) / 2;
+    const float a = 3; // initial acceleration
+    const float b = 4; // initial velocity
+    const float c = 5; // initial position
+    predictor.record(getMotionEvent(DOWN, 0, c, 20ms));
+    predictor.record(getMotionEvent(MOVE, 0, c + b, 30ms));
+    predictor.record(getMotionEvent(MOVE, 0, c + 2 * b + a, 40ms));
+    predictor.record(getMotionEvent(MOVE, 0, c + 3 * b + 3 * a + mediumJerk, 50ms));
+    predictor.record(getMotionEvent(MOVE, 0, c + 4 * b + 6 * a + 4 * mediumJerk, 60ms));
     std::unique_ptr<MotionEvent> predicted = predictor.predict(82 * NSEC_PER_MSEC);
     EXPECT_NE(nullptr, predicted);
-    // Halfway between LOW_JANK and HIGH_JANK means that half of the predictions
+    // Halfway between LOW_JERK and HIGH_JERK means that half of the predictions
     // will be pruned. If model prediction window is close enough to predict()
     // call time window, then half of the model predictions (5/2 -> 2) will be
     // ouputted.
diff --git a/libs/input/tests/Resampler_test.cpp b/libs/input/tests/Resampler_test.cpp
new file mode 100644
index 0000000..135f8b4
--- /dev/null
+++ b/libs/input/tests/Resampler_test.cpp
@@ -0,0 +1,449 @@
+/**
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <input/Resampler.h>
+
+#include <gtest/gtest.h>
+
+#include <chrono>
+#include <memory>
+#include <vector>
+
+#include <input/Input.h>
+#include <input/InputEventBuilders.h>
+#include <input/InputTransport.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+namespace {
+
+using namespace std::literals::chrono_literals;
+
+constexpr float EPSILON = MotionEvent::ROUNDING_PRECISION;
+
+struct Pointer {
+    int32_t id{0};
+    ToolType toolType{ToolType::FINGER};
+    float x{0.0f};
+    float y{0.0f};
+    bool isResampled{false};
+    /**
+     * Converts from Pointer to PointerCoords. Enables calling LegacyResampler methods and
+     * assertions only with the relevant data for tests.
+     */
+    operator PointerCoords() const;
+};
+
+Pointer::operator PointerCoords() const {
+    PointerCoords pointerCoords;
+    pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, x);
+    pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, y);
+    pointerCoords.isResampled = isResampled;
+    return pointerCoords;
+}
+
+struct InputSample {
+    std::chrono::milliseconds eventTime{0};
+    std::vector<Pointer> pointers{};
+    /**
+     * Converts from InputSample to InputMessage. Enables calling LegacyResampler methods only with
+     * the relevant data for tests.
+     */
+    operator InputMessage() const;
+};
+
+InputSample::operator InputMessage() const {
+    InputMessage message;
+    message.header.type = InputMessage::Type::MOTION;
+    message.body.motion.pointerCount = pointers.size();
+    message.body.motion.eventTime = static_cast<std::chrono::nanoseconds>(eventTime).count();
+    message.body.motion.source = AINPUT_SOURCE_CLASS_POINTER;
+    message.body.motion.downTime = 0;
+    const uint32_t pointerCount = message.body.motion.pointerCount;
+    for (uint32_t i = 0; i < pointerCount; ++i) {
+        message.body.motion.pointers[i].properties.id = pointers[i].id;
+        message.body.motion.pointers[i].properties.toolType = pointers[i].toolType;
+        message.body.motion.pointers[i].coords.setAxisValue(AMOTION_EVENT_AXIS_X, pointers[i].x);
+        message.body.motion.pointers[i].coords.setAxisValue(AMOTION_EVENT_AXIS_Y, pointers[i].y);
+        message.body.motion.pointers[i].coords.isResampled = pointers[i].isResampled;
+    }
+    return message;
+}
+
+struct InputStream {
+    std::vector<InputSample> samples{};
+    int32_t action{0};
+    DeviceId deviceId{0};
+    /**
+     * Converts from InputStream to MotionEvent. Enables calling LegacyResampler methods only with
+     * the relevant data for tests.
+     */
+    operator MotionEvent() const;
+};
+
+InputStream::operator MotionEvent() const {
+    const InputSample& firstSample{*samples.begin()};
+    MotionEventBuilder motionEventBuilder =
+            MotionEventBuilder(action, AINPUT_SOURCE_CLASS_POINTER)
+                    .downTime(0)
+                    .eventTime(static_cast<std::chrono::nanoseconds>(firstSample.eventTime).count())
+                    .deviceId(deviceId);
+    for (const Pointer& pointer : firstSample.pointers) {
+        const PointerBuilder pointerBuilder =
+                PointerBuilder(pointer.id, pointer.toolType).x(pointer.x).y(pointer.y);
+        motionEventBuilder.pointer(pointerBuilder);
+    }
+    MotionEvent motionEvent = motionEventBuilder.build();
+    const size_t numSamples = samples.size();
+    for (size_t i = 1; i < numSamples; ++i) {
+        std::vector<PointerCoords> pointersCoords{samples[i].pointers.begin(),
+                                                  samples[i].pointers.end()};
+        motionEvent.addSample(static_cast<std::chrono::nanoseconds>(samples[i].eventTime).count(),
+                              pointersCoords.data(), motionEvent.getId());
+    }
+    return motionEvent;
+}
+
+} // namespace
+
+class ResamplerTest : public testing::Test {
+protected:
+    ResamplerTest() : mResampler(std::make_unique<LegacyResampler>()) {}
+
+    ~ResamplerTest() override {}
+
+    void SetUp() override {}
+
+    void TearDown() override {}
+
+    std::unique_ptr<Resampler> mResampler;
+
+    MotionEvent buildMotionEvent(const int32_t action, const nsecs_t eventTime,
+                                 const std::vector<PointerBuilder>& pointers);
+
+    InputMessage createMessage(const uint32_t pointerCount, const nsecs_t eventTime,
+                               const int32_t action,
+                               const std::vector<PointerProperties>& properties,
+                               const std::vector<PointerCoords>& coords);
+
+    /**
+     * Checks that beforeCall and afterCall are equal except for the mutated attributes by addSample
+     * member function.
+     * @param beforeCall MotionEvent before passing it to resampleMotionEvent
+     * @param afterCall MotionEvent after passing it to resampleMotionEvent
+     */
+    void assertMotionEventMetaDataDidNotMutate(const MotionEvent& beforeCall,
+                                               const MotionEvent& afterCall);
+
+    /**
+     * Asserts the MotionEvent is resampled by checking an increment in history size and that the
+     * resampled coordinates are near the expected ones.
+     */
+    void assertMotionEventIsResampledAndCoordsNear(const MotionEvent& original,
+                                                   const MotionEvent& resampled,
+                                                   const PointerCoords& expectedCoords);
+
+    void assertMotionEventIsNotResampled(const MotionEvent& original,
+                                         const MotionEvent& notResampled);
+};
+
+MotionEvent ResamplerTest::buildMotionEvent(const int32_t action, const nsecs_t eventTime,
+                                            const std::vector<PointerBuilder>& pointerBuilders) {
+    MotionEventBuilder motionEventBuilder = MotionEventBuilder(action, AINPUT_SOURCE_CLASS_POINTER)
+                                                    .downTime(0)
+                                                    .eventTime(eventTime);
+    for (const PointerBuilder& pointerBuilder : pointerBuilders) {
+        motionEventBuilder.pointer(pointerBuilder);
+    }
+    return motionEventBuilder.build();
+}
+
+InputMessage ResamplerTest::createMessage(const uint32_t pointerCount, const nsecs_t eventTime,
+                                          const int32_t action,
+                                          const std::vector<PointerProperties>& properties,
+                                          const std::vector<PointerCoords>& coords) {
+    InputMessage message;
+    message.header.type = InputMessage::Type::MOTION;
+    message.body.motion.pointerCount = pointerCount;
+    message.body.motion.eventTime = eventTime;
+    message.body.motion.source = AINPUT_SOURCE_CLASS_POINTER;
+    message.body.motion.downTime = 0;
+    for (uint32_t i = 0; i < pointerCount; ++i) {
+        message.body.motion.pointers[i].properties = properties[i];
+        message.body.motion.pointers[i].coords = coords[i];
+    }
+    return message;
+}
+
+void ResamplerTest::assertMotionEventMetaDataDidNotMutate(const MotionEvent& beforeCall,
+                                                          const MotionEvent& afterCall) {
+    EXPECT_EQ(beforeCall.getDeviceId(), afterCall.getDeviceId());
+    EXPECT_EQ(beforeCall.getAction(), afterCall.getAction());
+    EXPECT_EQ(beforeCall.getActionButton(), afterCall.getActionButton());
+    EXPECT_EQ(beforeCall.getButtonState(), afterCall.getButtonState());
+    EXPECT_EQ(beforeCall.getFlags(), afterCall.getFlags());
+    EXPECT_EQ(beforeCall.getEdgeFlags(), afterCall.getEdgeFlags());
+    EXPECT_EQ(beforeCall.getClassification(), afterCall.getClassification());
+    EXPECT_EQ(beforeCall.getPointerCount(), afterCall.getPointerCount());
+    EXPECT_EQ(beforeCall.getMetaState(), afterCall.getMetaState());
+    EXPECT_EQ(beforeCall.getSource(), afterCall.getSource());
+    EXPECT_EQ(beforeCall.getXPrecision(), afterCall.getXPrecision());
+    EXPECT_EQ(beforeCall.getYPrecision(), afterCall.getYPrecision());
+    EXPECT_EQ(beforeCall.getDownTime(), afterCall.getDownTime());
+    EXPECT_EQ(beforeCall.getDisplayId(), afterCall.getDisplayId());
+}
+
+void ResamplerTest::assertMotionEventIsResampledAndCoordsNear(const MotionEvent& original,
+                                                              const MotionEvent& resampled,
+                                                              const PointerCoords& expectedCoords) {
+    assertMotionEventMetaDataDidNotMutate(original, resampled);
+    const size_t originalSampleSize = original.getHistorySize() + 1;
+    const size_t resampledSampleSize = resampled.getHistorySize() + 1;
+    EXPECT_EQ(originalSampleSize + 1, resampledSampleSize);
+    const PointerCoords& resampledCoords =
+            resampled.getSamplePointerCoords()[resampled.getHistorySize()];
+    EXPECT_TRUE(resampledCoords.isResampled);
+    EXPECT_NEAR(expectedCoords.getX(), resampledCoords.getX(), EPSILON);
+    EXPECT_NEAR(expectedCoords.getY(), resampledCoords.getY(), EPSILON);
+}
+
+void ResamplerTest::assertMotionEventIsNotResampled(const MotionEvent& original,
+                                                    const MotionEvent& notResampled) {
+    assertMotionEventMetaDataDidNotMutate(original, notResampled);
+    const size_t originalSampleSize = original.getHistorySize() + 1;
+    const size_t notResampledSampleSize = notResampled.getHistorySize() + 1;
+    EXPECT_EQ(originalSampleSize, notResampledSampleSize);
+}
+
+TEST_F(ResamplerTest, NonResampledAxesArePreserved) {
+    constexpr float TOUCH_MAJOR_VALUE = 1.0f;
+
+    MotionEvent motionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    constexpr std::chrono::nanoseconds eventTime{10ms};
+    PointerCoords pointerCoords{};
+    pointerCoords.isResampled = false;
+    pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_X, 2.0f);
+    pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, 2.0f);
+    pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, TOUCH_MAJOR_VALUE);
+
+    motionEvent.addSample(eventTime.count(), &pointerCoords, motionEvent.getId());
+
+    const InputMessage futureSample =
+            InputSample{15ms, {{.id = 0, .x = 3.0f, .y = 4.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    EXPECT_EQ(motionEvent.getTouchMajor(0), TOUCH_MAJOR_VALUE);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              Pointer{.id = 0,
+                                                      .x = 2.2f,
+                                                      .y = 2.4f,
+                                                      .isResampled = true});
+}
+
+TEST_F(ResamplerTest, SinglePointerNotEnoughDataToResample) {
+    MotionEvent motionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE,
+                        .deviceId = 0};
+    const MotionEvent originalMotionEvent = motionEvent;
+    mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, SinglePointerDifferentDeviceIdBetweenMotionEvents) {
+    MotionEvent motionFromFirstDevice =
+            InputStream{{{4ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         {8ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE,
+                        .deviceId = 0};
+    mResampler->resampleMotionEvent(10ms, motionFromFirstDevice, nullptr);
+    MotionEvent motionFromSecondDevice =
+            InputStream{{{11ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE,
+                        .deviceId = 1};
+    const MotionEvent originalMotionEvent = motionFromSecondDevice;
+    mResampler->resampleMotionEvent(12ms, motionFromSecondDevice, nullptr);
+    // The MotionEvent should not be resampled because the second event came from a different device
+    // than the previous event.
+    assertMotionEventIsNotResampled(originalMotionEvent, motionFromSecondDevice);
+}
+
+// Increments of 16 ms for display refresh rate
+// Increments of 6 ms for input frequency
+// Resampling latency is known to be 5 ms
+// Therefore, first resampling time will be 11 ms
+
+/**
+ * Timeline
+ * ----+----------------------+---------+---------+---------+----------
+ *     0ms                   10ms      11ms      15ms      16ms
+ *    DOWN                   MOVE       |        MSG        |
+ *                                  resample              frame
+ * Resampling occurs at 11ms. It is possible to interpolate because there is a sample available
+ * after the resample time. It is assumed that the InputMessage frequency is 100Hz, and the frame
+ * frequency is 60Hz. This means the time between InputMessage samples is 10ms, and the time between
+ * frames is ~16ms. Resample time is frameTime - RESAMPLE_LATENCY. The resampled sample must be the
+ * last one in the batch to consume.
+ */
+TEST_F(ResamplerTest, SinglePointerSingleSampleInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{{10ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+    const InputMessage futureSample =
+            InputSample{15ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              Pointer{.id = 0,
+                                                      .x = 1.2f,
+                                                      .y = 1.2f,
+                                                      .isResampled = true});
+}
+
+TEST_F(ResamplerTest, SinglePointerDeltaTooSmallInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{{10ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+    const InputMessage futureSample =
+            InputSample{11ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(10'500'000ns, motionEvent, &futureSample);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+/**
+ * Tests extrapolation given two MotionEvents with a single sample.
+ */
+TEST_F(ResamplerTest, SinglePointerSingleSampleExtrapolation) {
+    MotionEvent previousMotionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(10ms, previousMotionEvent, nullptr);
+
+    MotionEvent motionEvent =
+            InputStream{{{10ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              Pointer{.id = 0,
+                                                      .x = 1.0f,
+                                                      .y = 1.0f,
+                                                      .isResampled = true});
+    // Integrity of the whole motionEvent
+    // History size should increment by 1
+    // Check if the resampled value is the last one
+    // Check if the resampleTime is correct
+    // Check if the PointerCoords are consistent with the other computations
+}
+
+TEST_F(ResamplerTest, SinglePointerMultipleSampleInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         {10ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+    const InputMessage futureSample =
+            InputSample{15ms, {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              Pointer{.id = 0,
+                                                      .x = 2.2f,
+                                                      .y = 2.2f,
+                                                      .isResampled = true});
+}
+
+TEST_F(ResamplerTest, SinglePointerMultipleSampleExtrapolation) {
+    MotionEvent motionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         {10ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              Pointer{.id = 0,
+                                                      .x = 2.2f,
+                                                      .y = 2.2f,
+                                                      .isResampled = true});
+}
+
+TEST_F(ResamplerTest, SinglePointerDeltaTooSmallExtrapolation) {
+    MotionEvent motionEvent =
+            InputStream{{{9ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         {10ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, SinglePointerDeltaTooLargeExtrapolation) {
+    MotionEvent motionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         {26ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(27ms, motionEvent, nullptr);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, SinglePointerResampleTimeTooFarExtrapolation) {
+    MotionEvent motionEvent =
+            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         {25ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(43ms, motionEvent, nullptr);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              Pointer{.id = 0,
+                                                      .x = 2.4f,
+                                                      .y = 2.4f,
+                                                      .isResampled = true});
+}
+} // namespace android
diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index dd78049..ca41346 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp
@@ -196,10 +196,10 @@
         return BAD_VALUE;
     }
 
-    if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
-                  AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) {
+    if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK | AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK) ||
+        usage == 0) {
         ALOGE("Invalid usage flags passed to AHardwareBuffer_lock; only "
-                "AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
+              "AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
         return BAD_VALUE;
     }
 
@@ -248,10 +248,10 @@
 
     if (!buffer) return BAD_VALUE;
 
-    if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
-                  AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) {
+    if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK | AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK) ||
+        usage == 0) {
         ALOGE("Invalid usage flags passed to AHardwareBuffer_lock; only "
-                "AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
+              "AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
         return BAD_VALUE;
     }
 
@@ -277,10 +277,10 @@
         int32_t fence, const ARect* rect, AHardwareBuffer_Planes* outPlanes) {
     if (!buffer || !outPlanes) return BAD_VALUE;
 
-    if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
-                  AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) {
+    if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK | AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK) ||
+        usage == 0) {
         ALOGE("Invalid usage flags passed to AHardwareBuffer_lock; only "
-                " AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
+              " AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
         return BAD_VALUE;
     }
 
diff --git a/libs/renderengine/Android.bp b/libs/renderengine/Android.bp
index 4a04467..7639fab 100644
--- a/libs/renderengine/Android.bp
+++ b/libs/renderengine/Android.bp
@@ -101,10 +101,12 @@
         "skia/debug/SkiaMemoryReporter.cpp",
         "skia/filters/BlurFilter.cpp",
         "skia/filters/GaussianBlurFilter.cpp",
+        "skia/filters/KawaseBlurDualFilter.cpp",
         "skia/filters/KawaseBlurFilter.cpp",
         "skia/filters/LinearEffect.cpp",
         "skia/filters/MouriMap.cpp",
         "skia/filters/StretchShaderFactory.cpp",
+        "skia/filters/EdgeExtensionShaderFactory.cpp",
     ],
 }
 
diff --git a/libs/renderengine/ExternalTexture.cpp b/libs/renderengine/ExternalTexture.cpp
index 6f2a96a..8d0fbba 100644
--- a/libs/renderengine/ExternalTexture.cpp
+++ b/libs/renderengine/ExternalTexture.cpp
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
+#include <common/trace.h>
 #include <log/log.h>
 #include <renderengine/RenderEngine.h>
 #include <renderengine/impl/ExternalTexture.h>
 #include <ui/GraphicBuffer.h>
-#include <utils/Trace.h>
 
 namespace android::renderengine::impl {
 
@@ -35,7 +35,7 @@
 }
 
 void ExternalTexture::remapBuffer() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     {
         auto buf = mBuffer;
         mRenderEngine.unmapExternalTextureBuffer(std::move(buf));
diff --git a/libs/renderengine/benchmark/Android.bp b/libs/renderengine/benchmark/Android.bp
index e1a6f6a..f84db0b 100644
--- a/libs/renderengine/benchmark/Android.bp
+++ b/libs/renderengine/benchmark/Android.bp
@@ -57,6 +57,7 @@
         "libui",
         "libutils",
         "server_configurable_flags",
+        "libtracing_perfetto",
     ],
 
     data: ["resources/*"],
diff --git a/libs/renderengine/benchmark/RenderEngineBench.cpp b/libs/renderengine/benchmark/RenderEngineBench.cpp
index 05a2063..326d1ce 100644
--- a/libs/renderengine/benchmark/RenderEngineBench.cpp
+++ b/libs/renderengine/benchmark/RenderEngineBench.cpp
@@ -64,14 +64,15 @@
     return std::pair<uint32_t, uint32_t>(width, height);
 }
 
-static std::unique_ptr<RenderEngine> createRenderEngine(RenderEngine::Threaded threaded,
-                                                        RenderEngine::GraphicsApi graphicsApi) {
+static std::unique_ptr<RenderEngine> createRenderEngine(
+        RenderEngine::Threaded threaded, RenderEngine::GraphicsApi graphicsApi,
+        RenderEngine::BlurAlgorithm blurAlgorithm = RenderEngine::BlurAlgorithm::KAWASE) {
     auto args = RenderEngineCreationArgs::Builder()
                         .setPixelFormat(static_cast<int>(ui::PixelFormat::RGBA_8888))
                         .setImageCacheSize(1)
                         .setEnableProtectedContext(true)
                         .setPrecacheToneMapperShaderOnly(false)
-                        .setBlurAlgorithm(renderengine::RenderEngine::BlurAlgorithm::KAWASE)
+                        .setBlurAlgorithm(blurAlgorithm)
                         .setContextPriority(RenderEngine::ContextPriority::REALTIME)
                         .setThreaded(threaded)
                         .setGraphicsApi(graphicsApi)
@@ -180,7 +181,8 @@
 void BM_blur(benchmark::State& benchState, Args&&... args) {
     auto args_tuple = std::make_tuple(std::move(args)...);
     auto re = createRenderEngine(static_cast<RenderEngine::Threaded>(std::get<0>(args_tuple)),
-                                 static_cast<RenderEngine::GraphicsApi>(std::get<1>(args_tuple)));
+                                 static_cast<RenderEngine::GraphicsApi>(std::get<1>(args_tuple)),
+                                 static_cast<RenderEngine::BlurAlgorithm>(std::get<2>(args_tuple)));
 
     // Initially use cpu access so we can decode into it with AImageDecoder.
     auto [width, height] = getDisplaySize();
@@ -224,5 +226,11 @@
     benchDrawLayers(*re, layers, benchState, "blurred");
 }
 
-BENCHMARK_CAPTURE(BM_blur, SkiaGLThreaded, RenderEngine::Threaded::YES,
-                  RenderEngine::GraphicsApi::GL);
+BENCHMARK_CAPTURE(BM_blur, gaussian, RenderEngine::Threaded::YES, RenderEngine::GraphicsApi::GL,
+                  RenderEngine::BlurAlgorithm::GAUSSIAN);
+
+BENCHMARK_CAPTURE(BM_blur, kawase, RenderEngine::Threaded::YES, RenderEngine::GraphicsApi::GL,
+                  RenderEngine::BlurAlgorithm::KAWASE);
+
+BENCHMARK_CAPTURE(BM_blur, kawase_dual_filter, RenderEngine::Threaded::YES,
+                  RenderEngine::GraphicsApi::GL, RenderEngine::BlurAlgorithm::KAWASE_DUAL_FILTER);
diff --git a/libs/renderengine/include/renderengine/LayerSettings.h b/libs/renderengine/include/renderengine/LayerSettings.h
index 8ac0af4..859ae8b 100644
--- a/libs/renderengine/include/renderengine/LayerSettings.h
+++ b/libs/renderengine/include/renderengine/LayerSettings.h
@@ -31,6 +31,7 @@
 #include <ui/ShadowSettings.h>
 #include <ui/StretchEffect.h>
 #include <ui/Transform.h>
+#include "ui/EdgeExtensionEffect.h"
 
 #include <iosfwd>
 
@@ -134,6 +135,7 @@
     mat4 blurRegionTransform = mat4();
 
     StretchEffect stretchEffect;
+    EdgeExtensionEffect edgeExtensionEffect;
 
     // Name associated with the layer for debugging purposes.
     std::string name;
@@ -183,7 +185,9 @@
             lhs.skipContentDraw == rhs.skipContentDraw && lhs.shadow == rhs.shadow &&
             lhs.backgroundBlurRadius == rhs.backgroundBlurRadius &&
             lhs.blurRegionTransform == rhs.blurRegionTransform &&
-            lhs.stretchEffect == rhs.stretchEffect && lhs.whitePointNits == rhs.whitePointNits;
+            lhs.stretchEffect == rhs.stretchEffect &&
+            lhs.edgeExtensionEffect == rhs.edgeExtensionEffect &&
+            lhs.whitePointNits == rhs.whitePointNits;
 }
 
 static inline void PrintTo(const Buffer& settings, ::std::ostream* os) {
@@ -254,6 +258,10 @@
     *os << "\n}";
 }
 
+static inline void PrintTo(const EdgeExtensionEffect& effect, ::std::ostream* os) {
+    *os << effect;
+}
+
 static inline void PrintTo(const LayerSettings& settings, ::std::ostream* os) {
     *os << "LayerSettings for '" << settings.name.c_str() << "' {";
     *os << "\n    .geometry = ";
@@ -285,6 +293,10 @@
         *os << "\n    .stretchEffect = ";
         PrintTo(settings.stretchEffect, os);
     }
+
+    if (settings.edgeExtensionEffect.hasEffect()) {
+        *os << "\n    .edgeExtensionEffect = " << settings.edgeExtensionEffect;
+    }
     *os << "\n    .whitePointNits = " << settings.whitePointNits;
     *os << "\n}";
 }
diff --git a/libs/renderengine/include/renderengine/RenderEngine.h b/libs/renderengine/include/renderengine/RenderEngine.h
index 7207394..9bc2c48 100644
--- a/libs/renderengine/include/renderengine/RenderEngine.h
+++ b/libs/renderengine/include/renderengine/RenderEngine.h
@@ -131,6 +131,7 @@
         NONE,
         GAUSSIAN,
         KAWASE,
+        KAWASE_DUAL_FILTER,
     };
 
     static std::unique_ptr<RenderEngine> create(const RenderEngineCreationArgs& args);
diff --git a/libs/renderengine/skia/AutoBackendTexture.cpp b/libs/renderengine/skia/AutoBackendTexture.cpp
index 8aeef9f..b7b7a4d 100644
--- a/libs/renderengine/skia/AutoBackendTexture.cpp
+++ b/libs/renderengine/skia/AutoBackendTexture.cpp
@@ -25,8 +25,8 @@
 
 #include "compat/SkiaBackendTexture.h"
 
+#include <common/trace.h>
 #include <log/log_main.h>
-#include <utils/Trace.h>
 
 namespace android {
 namespace renderengine {
@@ -63,7 +63,7 @@
 }
 
 sk_sp<SkImage> AutoBackendTexture::makeImage(ui::Dataspace dataspace, SkAlphaType alphaType) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     sk_sp<SkImage> image = mBackendTexture->makeImage(alphaType, dataspace, releaseImageProc, this);
     // The following ref will be counteracted by releaseProc, when SkImage is discarded.
@@ -75,7 +75,7 @@
 }
 
 sk_sp<SkSurface> AutoBackendTexture::getOrCreateSurface(ui::Dataspace dataspace) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     LOG_ALWAYS_FATAL_IF(!mBackendTexture->isOutputBuffer(),
                         "You can't generate an SkSurface for a read-only texture");
     if (!mSurface.get() || mDataspace != dataspace) {
diff --git a/libs/renderengine/skia/GaneshVkRenderEngine.cpp b/libs/renderengine/skia/GaneshVkRenderEngine.cpp
index 68798bf..a3a43e2 100644
--- a/libs/renderengine/skia/GaneshVkRenderEngine.cpp
+++ b/libs/renderengine/skia/GaneshVkRenderEngine.cpp
@@ -21,9 +21,9 @@
 
 #include <include/gpu/ganesh/vk/GrVkBackendSemaphore.h>
 
+#include <common/trace.h>
 #include <log/log_main.h>
 #include <sync/sync.h>
-#include <utils/Trace.h>
 
 namespace android::renderengine::skia {
 
@@ -78,7 +78,7 @@
                                                      sk_sp<SkSurface> dstSurface) {
     sk_sp<GrDirectContext> grContext = context->grDirectContext();
     {
-        ATRACE_NAME("flush surface");
+        SFTRACE_NAME("flush surface");
         // TODO: Investigate feasibility of combining this "surface flush" into the "context flush"
         // below.
         context->grDirectContext()->flush(dstSurface.get());
diff --git a/libs/renderengine/skia/GraphiteVkRenderEngine.cpp b/libs/renderengine/skia/GraphiteVkRenderEngine.cpp
index b5cb21b..390ad6e 100644
--- a/libs/renderengine/skia/GraphiteVkRenderEngine.cpp
+++ b/libs/renderengine/skia/GraphiteVkRenderEngine.cpp
@@ -23,6 +23,7 @@
 #include <include/gpu/graphite/BackendSemaphore.h>
 #include <include/gpu/graphite/Context.h>
 #include <include/gpu/graphite/Recording.h>
+#include <include/gpu/graphite/vk/VulkanGraphiteTypes.h>
 
 #include <log/log_main.h>
 #include <sync/sync.h>
@@ -77,7 +78,7 @@
     base::unique_fd fenceDup(dupedFd);
     VkSemaphore waitSemaphore =
             getVulkanInterface(isProtected()).importSemaphoreFromSyncFd(fenceDup.release());
-    graphite::BackendSemaphore beSemaphore(waitSemaphore);
+    auto beSemaphore = graphite::BackendSemaphores::MakeVulkan(waitSemaphore);
     mStagedWaitSemaphores.push_back(beSemaphore);
 }
 
@@ -92,7 +93,7 @@
     // This "signal" semaphore is called after rendering, but it is cleaned up in the same mechanism
     // as "wait" semaphores from waitFence.
     VkSemaphore vkSignalSemaphore = vulkanInterface.createExportableSemaphore();
-    graphite::BackendSemaphore backendSignalSemaphore(vkSignalSemaphore);
+    auto backendSignalSemaphore = graphite::BackendSemaphores::MakeVulkan(vkSignalSemaphore);
 
     // Collect all Vk semaphores that DestroySemaphoreInfo needs to own and delete after GPU work.
     std::vector<VkSemaphore> vkSemaphoresToCleanUp;
@@ -100,7 +101,8 @@
         vkSemaphoresToCleanUp.push_back(vkSignalSemaphore);
     }
     for (auto backendWaitSemaphore : mStagedWaitSemaphores) {
-        vkSemaphoresToCleanUp.push_back(backendWaitSemaphore.getVkSemaphore());
+        vkSemaphoresToCleanUp.push_back(
+            graphite::BackendSemaphores::GetVkSemaphore(backendWaitSemaphore));
     }
 
     DestroySemaphoreInfo* destroySemaphoreInfo = nullptr;
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.cpp b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
index 48270e1..af24600 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
@@ -28,12 +28,11 @@
 #include <GrContextOptions.h>
 #include <GrTypes.h>
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <gl/GrGLInterface.h>
 #include <include/gpu/ganesh/gl/GrGLDirectContext.h>
-#include <gui/TraceUtils.h>
 #include <sync/sync.h>
 #include <ui/DebugUtils.h>
-#include <utils/Trace.h>
 
 #include <cmath>
 #include <cstdint>
@@ -332,7 +331,7 @@
 
 void SkiaGLRenderEngine::waitFence(SkiaGpuContext*, base::borrowed_fd fenceFd) {
     if (fenceFd.get() >= 0 && !waitGpuFence(fenceFd)) {
-        ATRACE_NAME("SkiaGLRenderEngine::waitFence");
+        SFTRACE_NAME("SkiaGLRenderEngine::waitFence");
         sync_wait(fenceFd.get(), -1);
     }
 }
@@ -341,19 +340,19 @@
                                                    sk_sp<SkSurface> dstSurface) {
     sk_sp<GrDirectContext> grContext = context->grDirectContext();
     {
-        ATRACE_NAME("flush surface");
+        SFTRACE_NAME("flush surface");
         grContext->flush(dstSurface.get());
     }
     base::unique_fd drawFence = flushGL();
 
     bool requireSync = drawFence.get() < 0;
     if (requireSync) {
-        ATRACE_BEGIN("Submit(sync=true)");
+        SFTRACE_BEGIN("Submit(sync=true)");
     } else {
-        ATRACE_BEGIN("Submit(sync=false)");
+        SFTRACE_BEGIN("Submit(sync=false)");
     }
     bool success = grContext->submit(requireSync ? GrSyncCpu::kYes : GrSyncCpu::kNo);
-    ATRACE_END();
+    SFTRACE_END();
     if (!success) {
         ALOGE("Failed to flush RenderEngine commands");
         // Chances are, something illegal happened (Skia's internal GPU object
@@ -400,7 +399,7 @@
 }
 
 base::unique_fd SkiaGLRenderEngine::flushGL() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (!GLExtensions::getInstance().hasNativeFenceSync()) {
         return base::unique_fd();
     }
diff --git a/libs/renderengine/skia/SkiaRenderEngine.cpp b/libs/renderengine/skia/SkiaRenderEngine.cpp
index e62640e..d58f303 100644
--- a/libs/renderengine/skia/SkiaRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaRenderEngine.cpp
@@ -54,8 +54,8 @@
 #include <SkTileMode.h>
 #include <android-base/stringprintf.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <gui/FenceMonitor.h>
-#include <gui/TraceUtils.h>
 #include <include/gpu/ganesh/SkSurfaceGanesh.h>
 #include <pthread.h>
 #include <src/core/SkTraceEventCommon.h>
@@ -64,7 +64,6 @@
 #include <ui/DebugUtils.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/HdrRenderTypeUtils.h>
-#include <utils/Trace.h>
 
 #include <cmath>
 #include <cstdint>
@@ -77,6 +76,7 @@
 #include "compat/SkiaGpuContext.h"
 #include "filters/BlurFilter.h"
 #include "filters/GaussianBlurFilter.h"
+#include "filters/KawaseBlurDualFilter.h"
 #include "filters/KawaseBlurFilter.h"
 #include "filters/LinearEffect.h"
 #include "filters/MouriMap.h"
@@ -261,7 +261,7 @@
                                                const SkString& description) {
     mShadersCachedSinceLastCall++;
     mTotalShadersCompiled++;
-    ATRACE_FORMAT("SF cache: %i shaders", mTotalShadersCompiled);
+    SFTRACE_FORMAT("SF cache: %i shaders", mTotalShadersCompiled);
 }
 
 int SkiaRenderEngine::reportShadersCompiled() {
@@ -286,6 +286,11 @@
             mBlurFilter = new KawaseBlurFilter();
             break;
         }
+        case BlurAlgorithm::KAWASE_DUAL_FILTER: {
+            ALOGD("Background Blurs Enabled (Kawase dual-filtering algorithm)");
+            mBlurFilter = new KawaseBlurDualFilter();
+            break;
+        }
         default: {
             mBlurFilter = nullptr;
             break;
@@ -416,7 +421,7 @@
     if (isProtectedBuffer || isProtected() || !isGpuSampleable) {
         return;
     }
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     // If we were to support caching protected buffers then we will need to switch the
     // currently bound context if we are not already using the protected context (and subsequently
@@ -441,7 +446,7 @@
 }
 
 void SkiaRenderEngine::unmapExternalTextureBuffer(sp<GraphicBuffer>&& buffer) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard<std::mutex> lock(mRenderingMutex);
     if (const auto& iter = mGraphicBufferExternalRefs.find(buffer->getId());
         iter != mGraphicBufferExternalRefs.end()) {
@@ -498,7 +503,7 @@
 }
 
 void SkiaRenderEngine::cleanupPostRender() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard<std::mutex> lock(mRenderingMutex);
     mTextureCleanupMgr.cleanup();
 }
@@ -507,16 +512,24 @@
         const RuntimeEffectShaderParameters& parameters) {
     // The given surface will be stretched by HWUI via matrix transformation
     // which gets similar results for most surfaces
-    // Determine later on if we need to leverage the stertch shader within
+    // Determine later on if we need to leverage the stretch shader within
     // surface flinger
     const auto& stretchEffect = parameters.layer.stretchEffect;
     const auto& targetBuffer = parameters.layer.source.buffer.buffer;
+    const auto graphicBuffer = targetBuffer ? targetBuffer->getBuffer() : nullptr;
+
     auto shader = parameters.shader;
-    if (stretchEffect.hasEffect()) {
-        const auto graphicBuffer = targetBuffer ? targetBuffer->getBuffer() : nullptr;
-        if (graphicBuffer && parameters.shader) {
+    if (graphicBuffer && parameters.shader) {
+        if (stretchEffect.hasEffect()) {
             shader = mStretchShaderFactory.createSkShader(shader, stretchEffect);
         }
+        // The given surface requires to be filled outside of its buffer bounds if the edge
+        // extension is required
+        const auto& edgeExtensionEffect = parameters.layer.edgeExtensionEffect;
+        if (edgeExtensionEffect.hasEffect()) {
+            shader = mEdgeExtensionShaderFactory.createSkShader(shader, parameters.layer,
+                                                                parameters.imageBounds);
+        }
     }
 
     if (parameters.requiresLinearEffect) {
@@ -525,21 +538,26 @@
                           static_cast<ui::PixelFormat>(targetBuffer->getPixelFormat()))
                 : std::nullopt;
 
-        if (parameters.display.tonemapStrategy == DisplaySettings::TonemapStrategy::Local) {
-            // TODO: Handle color matrix transforms in linear space.
-            SkImage* image = parameters.shader->isAImage((SkMatrix*)nullptr, (SkTileMode*)nullptr);
-            if (image) {
-                static MouriMap kMapper;
-                const float ratio = getHdrRenderType(parameters.layer.sourceDataspace, format) ==
-                                HdrRenderType::GENERIC_HDR
-                        ? 1.0f
-                        : parameters.layerDimmingRatio;
-                return kMapper.mouriMap(getActiveContext(), parameters.shader, ratio);
-            }
+        const auto hdrType = getHdrRenderType(parameters.layer.sourceDataspace, format,
+                                              parameters.layerDimmingRatio);
+
+        const auto usingLocalTonemap =
+                parameters.display.tonemapStrategy == DisplaySettings::TonemapStrategy::Local &&
+                hdrType != HdrRenderType::SDR &&
+                shader->isAImage((SkMatrix*)nullptr, (SkTileMode*)nullptr);
+
+        if (usingLocalTonemap) {
+            static MouriMap kMapper;
+            const float ratio =
+                    hdrType == HdrRenderType::GENERIC_HDR ? 1.0f : parameters.layerDimmingRatio;
+            shader = kMapper.mouriMap(getActiveContext(), shader, ratio);
         }
 
+        // disable tonemapping if we already locally tonemapped
+        auto inputDataspace =
+                usingLocalTonemap ? parameters.outputDataSpace : parameters.layer.sourceDataspace;
         auto effect =
-                shaders::LinearEffect{.inputDataspace = parameters.layer.sourceDataspace,
+                shaders::LinearEffect{.inputDataspace = inputDataspace,
                                       .outputDataspace = parameters.outputDataSpace,
                                       .undoPremultipliedAlpha = parameters.undoPremultipliedAlpha,
                                       .fakeOutputDataspace = parameters.fakeOutputDataspace};
@@ -555,20 +573,20 @@
 
         mat4 colorTransform = parameters.layer.colorTransform;
 
-        colorTransform *=
-                mat4::scale(vec4(parameters.layerDimmingRatio, parameters.layerDimmingRatio,
-                                 parameters.layerDimmingRatio, 1.f));
+        if (!usingLocalTonemap) {
+            colorTransform *=
+                    mat4::scale(vec4(parameters.layerDimmingRatio, parameters.layerDimmingRatio,
+                                     parameters.layerDimmingRatio, 1.f));
+        }
 
-        const auto targetBuffer = parameters.layer.source.buffer.buffer;
-        const auto graphicBuffer = targetBuffer ? targetBuffer->getBuffer() : nullptr;
         const auto hardwareBuffer = graphicBuffer ? graphicBuffer->toAHardwareBuffer() : nullptr;
-        return createLinearEffectShader(parameters.shader, effect, runtimeEffect,
-                                        std::move(colorTransform), parameters.display.maxLuminance,
+        return createLinearEffectShader(shader, effect, runtimeEffect, std::move(colorTransform),
+                                        parameters.display.maxLuminance,
                                         parameters.display.currentLuminanceNits,
                                         parameters.layer.source.buffer.maxLuminanceNits,
                                         hardwareBuffer, parameters.display.renderIntent);
     }
-    return parameters.shader;
+    return shader;
 }
 
 void SkiaRenderEngine::initCanvas(SkCanvas* canvas, const DisplaySettings& display) {
@@ -683,7 +701,7 @@
         const std::shared_ptr<std::promise<FenceResult>>&& resultPromise,
         const DisplaySettings& display, const std::vector<LayerSettings>& layers,
         const std::shared_ptr<ExternalTexture>& buffer, base::unique_fd&& bufferFence) {
-    ATRACE_FORMAT("%s for %s", __func__, display.namePlusId.c_str());
+    SFTRACE_FORMAT("%s for %s", __func__, display.namePlusId.c_str());
 
     std::lock_guard<std::mutex> lock(mRenderingMutex);
 
@@ -775,7 +793,7 @@
         logSettings(display);
     }
     for (const auto& layer : layers) {
-        ATRACE_FORMAT("DrawLayer: %s", layer.name.c_str());
+        SFTRACE_FORMAT("DrawLayer: %s", layer.name.c_str());
 
         if (kPrintLayerSettings) {
             logSettings(layer);
@@ -869,7 +887,7 @@
             // TODO(b/182216890): Filter out empty layers earlier
             if (blurRect.width() > 0 && blurRect.height() > 0) {
                 if (layer.backgroundBlurRadius > 0) {
-                    ATRACE_NAME("BackgroundBlur");
+                    SFTRACE_NAME("BackgroundBlur");
                     auto blurredImage = mBlurFilter->generate(context, layer.backgroundBlurRadius,
                                                               blurInput, blurRect);
 
@@ -882,7 +900,7 @@
                 canvas->concat(getSkM44(layer.blurRegionTransform).asM33());
                 for (auto region : layer.blurRegions) {
                     if (cachedBlurs[region.blurRadius] == nullptr) {
-                        ATRACE_NAME("BlurRegion");
+                        SFTRACE_NAME("BlurRegion");
                         cachedBlurs[region.blurRadius] =
                                 mBlurFilter->generate(context, region.blurRadius, blurInput,
                                                       blurRect);
@@ -965,7 +983,7 @@
 
         SkPaint paint;
         if (layer.source.buffer.buffer) {
-            ATRACE_NAME("DrawImage");
+            SFTRACE_NAME("DrawImage");
             validateInputBufferUsage(layer.source.buffer.buffer->getBuffer());
             const auto& item = layer.source.buffer;
             auto imageTextureRef = getOrCreateBackendTexture(item.buffer->getBuffer(), false);
@@ -1032,18 +1050,20 @@
                                                            toSkColorSpace(layerDataspace)));
             }
 
-            paint.setShader(createRuntimeEffectShader(
-                    RuntimeEffectShaderParameters{.shader = shader,
-                                                  .layer = layer,
-                                                  .display = display,
-                                                  .undoPremultipliedAlpha = !item.isOpaque &&
-                                                          item.usePremultipliedAlpha,
-                                                  .requiresLinearEffect = requiresLinearEffect,
-                                                  .layerDimmingRatio = dimInLinearSpace
-                                                          ? layerDimmingRatio
-                                                          : 1.f,
-                                                  .outputDataSpace = display.outputDataspace,
-                                                  .fakeOutputDataspace = fakeDataspace}));
+            SkRect imageBounds;
+            matrix.mapRect(&imageBounds, SkRect::Make(image->bounds()));
+
+            paint.setShader(createRuntimeEffectShader(RuntimeEffectShaderParameters{
+                    .shader = shader,
+                    .layer = layer,
+                    .display = display,
+                    .undoPremultipliedAlpha = !item.isOpaque && item.usePremultipliedAlpha,
+                    .requiresLinearEffect = requiresLinearEffect,
+                    .layerDimmingRatio = dimInLinearSpace ? layerDimmingRatio : 1.f,
+                    .outputDataSpace = display.outputDataspace,
+                    .fakeOutputDataspace = fakeDataspace,
+                    .imageBounds = imageBounds,
+            }));
 
             // Turn on dithering when dimming beyond this (arbitrary) threshold...
             static constexpr float kDimmingThreshold = 0.9f;
@@ -1096,7 +1116,7 @@
                 paint.setColorFilter(SkColorFilters::Matrix(colorMatrix));
             }
         } else {
-            ATRACE_NAME("DrawColor");
+            SFTRACE_NAME("DrawColor");
             const auto color = layer.source.solidColor;
             sk_sp<SkShader> shader = SkShaders::Color(SkColor4f{.fR = color.r,
                                                                 .fG = color.g,
@@ -1111,7 +1131,8 @@
                                                   .requiresLinearEffect = requiresLinearEffect,
                                                   .layerDimmingRatio = layerDimmingRatio,
                                                   .outputDataSpace = display.outputDataspace,
-                                                  .fakeOutputDataspace = fakeDataspace}));
+                                                  .fakeOutputDataspace = fakeDataspace,
+                                                  .imageBounds = SkRect::MakeEmpty()}));
         }
 
         if (layer.disableBlending) {
@@ -1152,7 +1173,7 @@
             canvas->drawRect(bounds.rect(), paint);
         }
         if (kGaneshFlushAfterEveryLayer) {
-            ATRACE_NAME("flush surface");
+            SFTRACE_NAME("flush surface");
             // No-op in Graphite. If "flushing" Skia's drawing commands after each layer is desired
             // in Graphite, then a graphite::Recording would need to be snapped and tracked for each
             // layer, which is likely possible but adds non-trivial complexity (in both bookkeeping
@@ -1167,7 +1188,7 @@
     LOG_ALWAYS_FATAL_IF(activeSurface != dstSurface);
     auto drawFence = sp<Fence>::make(flushAndSubmit(context, dstSurface));
 
-    if (ATRACE_ENABLED()) {
+    if (SFTRACE_ENABLED()) {
         static gui::FenceMonitor sMonitor("RE Completion");
         sMonitor.queueFence(drawFence);
     }
@@ -1185,7 +1206,7 @@
 void SkiaRenderEngine::drawShadow(SkCanvas* canvas,
                                   const SkRRect& casterRRect,
                                   const ShadowSettings& settings) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const float casterZ = settings.length / 2.0f;
     const auto flags =
             settings.casterIsTranslucent ? kTransparentOccluder_ShadowFlag : kNone_ShadowFlag;
diff --git a/libs/renderengine/skia/SkiaRenderEngine.h b/libs/renderengine/skia/SkiaRenderEngine.h
index c8f9241..224a1ca 100644
--- a/libs/renderengine/skia/SkiaRenderEngine.h
+++ b/libs/renderengine/skia/SkiaRenderEngine.h
@@ -38,6 +38,7 @@
 #include "compat/SkiaGpuContext.h"
 #include "debug/SkiaCapture.h"
 #include "filters/BlurFilter.h"
+#include "filters/EdgeExtensionShaderFactory.h"
 #include "filters/LinearEffect.h"
 #include "filters/StretchShaderFactory.h"
 
@@ -156,6 +157,7 @@
         float layerDimmingRatio;
         const ui::Dataspace outputDataSpace;
         const ui::Dataspace fakeOutputDataspace;
+        const SkRect& imageBounds;
     };
     sk_sp<SkShader> createRuntimeEffectShader(const RuntimeEffectShaderParameters&);
 
@@ -175,6 +177,7 @@
     AutoBackendTexture::CleanupManager mTextureCleanupMgr GUARDED_BY(mRenderingMutex);
 
     StretchShaderFactory mStretchShaderFactory;
+    EdgeExtensionShaderFactory mEdgeExtensionShaderFactory;
 
     sp<Fence> mLastDrawFence;
     BlurFilter* mBlurFilter = nullptr;
diff --git a/libs/renderengine/skia/SkiaVkRenderEngine.cpp b/libs/renderengine/skia/SkiaVkRenderEngine.cpp
index bd50107..d89e818 100644
--- a/libs/renderengine/skia/SkiaVkRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaVkRenderEngine.cpp
@@ -29,13 +29,11 @@
 #include <GrDirectContext.h>
 #include <include/gpu/ganesh/vk/GrVkBackendSemaphore.h>
 #include <include/gpu/ganesh/vk/GrVkDirectContext.h>
-#include <vk/GrVkExtensions.h>
 #include <vk/GrVkTypes.h>
 
 #include <android-base/stringprintf.h>
-#include <gui/TraceUtils.h>
+#include <common/trace.h>
 #include <sync/sync.h>
-#include <utils/Trace.h>
 
 #include <memory>
 #include <string>
diff --git a/libs/renderengine/skia/SkiaVkRenderEngine.h b/libs/renderengine/skia/SkiaVkRenderEngine.h
index 0a2f9b2..d2bb3d5 100644
--- a/libs/renderengine/skia/SkiaVkRenderEngine.h
+++ b/libs/renderengine/skia/SkiaVkRenderEngine.h
@@ -17,8 +17,6 @@
 #ifndef SF_SKIAVKRENDERENGINE_H_
 #define SF_SKIAVKRENDERENGINE_H_
 
-#include <vk/GrVkBackendContext.h>
-
 #include "SkiaRenderEngine.h"
 #include "VulkanInterface.h"
 #include "compat/SkiaGpuContext.h"
diff --git a/libs/renderengine/skia/VulkanInterface.cpp b/libs/renderengine/skia/VulkanInterface.cpp
index 5e756b0..37b69f6 100644
--- a/libs/renderengine/skia/VulkanInterface.cpp
+++ b/libs/renderengine/skia/VulkanInterface.cpp
@@ -32,21 +32,8 @@
 namespace renderengine {
 namespace skia {
 
-GrVkBackendContext VulkanInterface::getGaneshBackendContext() {
-    GrVkBackendContext backendContext;
-    backendContext.fInstance = mInstance;
-    backendContext.fPhysicalDevice = mPhysicalDevice;
-    backendContext.fDevice = mDevice;
-    backendContext.fQueue = mQueue;
-    backendContext.fGraphicsQueueIndex = mQueueIndex;
-    backendContext.fMaxAPIVersion = mApiVersion;
-    backendContext.fVkExtensions = &mGrExtensions;
-    backendContext.fDeviceFeatures2 = mPhysicalDeviceFeatures2;
-    backendContext.fGetProc = mGrGetProc;
-    backendContext.fProtectedContext = mIsProtected ? Protected::kYes : Protected::kNo;
-    backendContext.fDeviceLostContext = this; // VulkanInterface is long-lived
-    backendContext.fDeviceLostProc = onVkDeviceFault;
-    return backendContext;
+VulkanBackendContext VulkanInterface::getGaneshBackendContext() {
+    return this->getGraphiteBackendContext();
 };
 
 VulkanBackendContext VulkanInterface::getGraphiteBackendContext() {
@@ -57,7 +44,7 @@
     backendContext.fQueue = mQueue;
     backendContext.fGraphicsQueueIndex = mQueueIndex;
     backendContext.fMaxAPIVersion = mApiVersion;
-    backendContext.fVkExtensions = &mGrExtensions;
+    backendContext.fVkExtensions = &mVulkanExtensions;
     backendContext.fDeviceFeatures2 = mPhysicalDeviceFeatures2;
     backendContext.fGetProc = mGrGetProc;
     backendContext.fProtectedContext = mIsProtected ? Protected::kYes : Protected::kNo;
@@ -429,11 +416,11 @@
         mDeviceExtensionNames.push_back(devExt.extensionName);
     }
 
-    mGrExtensions.init(sGetProc, instance, physicalDevice, enabledInstanceExtensionNames.size(),
-                       enabledInstanceExtensionNames.data(), enabledDeviceExtensionNames.size(),
-                       enabledDeviceExtensionNames.data());
+    mVulkanExtensions.init(sGetProc, instance, physicalDevice, enabledInstanceExtensionNames.size(),
+                           enabledInstanceExtensionNames.data(), enabledDeviceExtensionNames.size(),
+                           enabledDeviceExtensionNames.data());
 
-    if (!mGrExtensions.hasExtension(VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME, 1)) {
+    if (!mVulkanExtensions.hasExtension(VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME, 1)) {
         BAIL("Vulkan driver doesn't support external semaphore fd");
     }
 
@@ -458,7 +445,7 @@
         tailPnext = &mProtectedMemoryFeatures->pNext;
     }
 
-    if (mGrExtensions.hasExtension(VK_EXT_DEVICE_FAULT_EXTENSION_NAME, 1)) {
+    if (mVulkanExtensions.hasExtension(VK_EXT_DEVICE_FAULT_EXTENSION_NAME, 1)) {
         mDeviceFaultFeatures = new VkPhysicalDeviceFaultFeaturesEXT;
         mDeviceFaultFeatures->sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FAULT_FEATURES_EXT;
         mDeviceFaultFeatures->pNext = nullptr;
@@ -484,7 +471,7 @@
             queuePriority,
     };
 
-    if (mGrExtensions.hasExtension(VK_EXT_GLOBAL_PRIORITY_EXTENSION_NAME, 2)) {
+    if (mVulkanExtensions.hasExtension(VK_EXT_GLOBAL_PRIORITY_EXTENSION_NAME, 2)) {
         queueNextPtr = &queuePriorityCreateInfo;
     }
 
@@ -606,7 +593,7 @@
     mQueue = VK_NULL_HANDLE;          // Implicitly destroyed by destroying mDevice.
     mQueueIndex = 0;
     mApiVersion = 0;
-    mGrExtensions = skgpu::VulkanExtensions();
+    mVulkanExtensions = skgpu::VulkanExtensions();
     mGrGetProc = nullptr;
     mIsProtected = false;
     mIsRealtimePriority = false;
diff --git a/libs/renderengine/skia/VulkanInterface.h b/libs/renderengine/skia/VulkanInterface.h
index f20b002..d0fe4d1 100644
--- a/libs/renderengine/skia/VulkanInterface.h
+++ b/libs/renderengine/skia/VulkanInterface.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <include/gpu/vk/GrVkBackendContext.h>
+#include <include/gpu/vk/VulkanBackendContext.h>
 #include <include/gpu/vk/VulkanExtensions.h>
 #include <include/gpu/vk/VulkanTypes.h>
 
@@ -24,10 +24,6 @@
 
 using namespace skgpu;
 
-namespace skgpu {
-struct VulkanBackendContext;
-} // namespace skgpu
-
 namespace android {
 namespace renderengine {
 namespace skia {
@@ -48,7 +44,8 @@
     bool takeOwnership();
     void teardown();
 
-    GrVkBackendContext getGaneshBackendContext();
+    // TODO(b/309785258) Combine these into one now that they are the same implementation.
+    VulkanBackendContext getGaneshBackendContext();
     VulkanBackendContext getGraphiteBackendContext();
     VkSemaphore createExportableSemaphore();
     VkSemaphore importSemaphoreFromSyncFd(int syncFd);
@@ -86,7 +83,7 @@
     VkQueue mQueue = VK_NULL_HANDLE;
     int mQueueIndex = 0;
     uint32_t mApiVersion = 0;
-    skgpu::VulkanExtensions mGrExtensions;
+    skgpu::VulkanExtensions mVulkanExtensions;
     VkPhysicalDeviceFeatures2* mPhysicalDeviceFeatures2 = nullptr;
     VkPhysicalDeviceSamplerYcbcrConversionFeatures* mSamplerYcbcrConversionFeatures = nullptr;
     VkPhysicalDeviceProtectedMemoryFeatures* mProtectedMemoryFeatures = nullptr;
diff --git a/libs/renderengine/skia/compat/GaneshBackendTexture.cpp b/libs/renderengine/skia/compat/GaneshBackendTexture.cpp
index d246466..3fbc6ca 100644
--- a/libs/renderengine/skia/compat/GaneshBackendTexture.cpp
+++ b/libs/renderengine/skia/compat/GaneshBackendTexture.cpp
@@ -32,15 +32,15 @@
 #include "skia/compat/SkiaBackendTexture.h"
 
 #include <android/hardware_buffer.h>
+#include <common/trace.h>
 #include <log/log_main.h>
-#include <utils/Trace.h>
 
 namespace android::renderengine::skia {
 
 GaneshBackendTexture::GaneshBackendTexture(sk_sp<GrDirectContext> grContext,
                                            AHardwareBuffer* buffer, bool isOutputBuffer)
       : SkiaBackendTexture(buffer, isOutputBuffer), mGrContext(grContext) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     AHardwareBuffer_Desc desc;
     AHardwareBuffer_describe(buffer, &desc);
     const bool createProtectedImage = 0 != (desc.usage & AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT);
diff --git a/libs/renderengine/skia/compat/GaneshGpuContext.cpp b/libs/renderengine/skia/compat/GaneshGpuContext.cpp
index b2eae00..b121fe8 100644
--- a/libs/renderengine/skia/compat/GaneshGpuContext.cpp
+++ b/libs/renderengine/skia/compat/GaneshGpuContext.cpp
@@ -25,7 +25,7 @@
 #include <include/gpu/ganesh/gl/GrGLDirectContext.h>
 #include <include/gpu/ganesh/vk/GrVkDirectContext.h>
 #include <include/gpu/gl/GrGLInterface.h>
-#include <include/gpu/vk/GrVkBackendContext.h>
+#include <include/gpu/vk/VulkanBackendContext.h>
 
 #include "../AutoBackendTexture.h"
 #include "GaneshBackendTexture.h"
@@ -56,10 +56,10 @@
 }
 
 std::unique_ptr<SkiaGpuContext> SkiaGpuContext::MakeVulkan_Ganesh(
-        const GrVkBackendContext& grVkBackendContext,
+        const skgpu::VulkanBackendContext& vkBackendContext,
         GrContextOptions::PersistentCache& skSLCacheMonitor) {
     return std::make_unique<GaneshGpuContext>(
-            GrDirectContexts::MakeVulkan(grVkBackendContext, ganeshOptions(skSLCacheMonitor)));
+            GrDirectContexts::MakeVulkan(vkBackendContext, ganeshOptions(skSLCacheMonitor)));
 }
 
 GaneshGpuContext::GaneshGpuContext(sk_sp<GrDirectContext> grContext) : mGrContext(grContext) {
diff --git a/libs/renderengine/skia/compat/GraphiteBackendTexture.cpp b/libs/renderengine/skia/compat/GraphiteBackendTexture.cpp
index 3dd9ed2..a6e93ba 100644
--- a/libs/renderengine/skia/compat/GraphiteBackendTexture.cpp
+++ b/libs/renderengine/skia/compat/GraphiteBackendTexture.cpp
@@ -28,16 +28,16 @@
 #include "skia/ColorSpaces.h"
 
 #include <android/hardware_buffer.h>
+#include <common/trace.h>
 #include <inttypes.h>
 #include <log/log_main.h>
-#include <utils/Trace.h>
 
 namespace android::renderengine::skia {
 
 GraphiteBackendTexture::GraphiteBackendTexture(std::shared_ptr<skgpu::graphite::Recorder> recorder,
                                                AHardwareBuffer* buffer, bool isOutputBuffer)
       : SkiaBackendTexture(buffer, isOutputBuffer), mRecorder(std::move(recorder)) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     AHardwareBuffer_Desc desc;
     AHardwareBuffer_describe(buffer, &desc);
     const bool createProtectedImage = 0 != (desc.usage & AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT);
diff --git a/libs/renderengine/skia/compat/SkiaGpuContext.h b/libs/renderengine/skia/compat/SkiaGpuContext.h
index 282dfe7..9fa6fb8 100644
--- a/libs/renderengine/skia/compat/SkiaGpuContext.h
+++ b/libs/renderengine/skia/compat/SkiaGpuContext.h
@@ -23,7 +23,6 @@
 #include <include/gpu/GrDirectContext.h>
 #include <include/gpu/gl/GrGLInterface.h>
 #include <include/gpu/graphite/Context.h>
-#include <include/gpu/vk/GrVkBackendContext.h>
 #include "include/gpu/vk/VulkanBackendContext.h"
 
 #include "SkiaBackendTexture.h"
@@ -52,10 +51,10 @@
             GrContextOptions::PersistentCache& skSLCacheMonitor);
 
     /**
-     * grVkBackendContext must remain valid until after SkiaGpuContext is destroyed.
+     * vkBackendContext must remain valid until after SkiaGpuContext is destroyed.
      */
     static std::unique_ptr<SkiaGpuContext> MakeVulkan_Ganesh(
-            const GrVkBackendContext& grVkBackendContext,
+            const skgpu::VulkanBackendContext& vkBackendContext,
             GrContextOptions::PersistentCache& skSLCacheMonitor);
 
     // TODO: b/293371537 - Need shader / pipeline monitoring support in Graphite.
diff --git a/libs/renderengine/skia/debug/CommonPool.cpp b/libs/renderengine/skia/debug/CommonPool.cpp
index bf15300..9d7c69b 100644
--- a/libs/renderengine/skia/debug/CommonPool.cpp
+++ b/libs/renderengine/skia/debug/CommonPool.cpp
@@ -20,8 +20,8 @@
 #define LOG_TAG "RenderEngine"
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
+#include <common/trace.h>
 #include <sys/resource.h>
-#include <utils/Trace.h>
 
 #include <system/thread_defs.h>
 #include <array>
@@ -31,7 +31,7 @@
 namespace skia {
 
 CommonPool::CommonPool() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     CommonPool* pool = this;
     // Create 2 workers
diff --git a/libs/renderengine/skia/debug/SkiaCapture.cpp b/libs/renderengine/skia/debug/SkiaCapture.cpp
index e778884..e6a0e22 100644
--- a/libs/renderengine/skia/debug/SkiaCapture.cpp
+++ b/libs/renderengine/skia/debug/SkiaCapture.cpp
@@ -22,9 +22,9 @@
 
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <log/log.h>
 #include <renderengine/RenderEngine.h>
-#include <utils/Trace.h>
 
 #include "CommonPool.h"
 #include "SkCanvas.h"
@@ -48,7 +48,7 @@
 }
 
 SkCanvas* SkiaCapture::tryCapture(SkSurface* surface) NO_THREAD_SAFETY_ANALYSIS {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     // If we are not running yet, set up.
     if (CC_LIKELY(!mCaptureRunning)) {
@@ -86,7 +86,7 @@
 }
 
 void SkiaCapture::endCapture() NO_THREAD_SAFETY_ANALYSIS {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // Don't end anything if we are not running.
     if (CC_LIKELY(!mCaptureRunning)) {
         return;
@@ -102,7 +102,7 @@
 }
 
 SkCanvas* SkiaCapture::tryOffscreenCapture(SkSurface* surface, OffscreenState* state) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // Don't start anything if we are not running.
     if (CC_LIKELY(!mCaptureRunning)) {
         return surface->getCanvas();
@@ -122,7 +122,7 @@
 }
 
 uint64_t SkiaCapture::endOffscreenCapture(OffscreenState* state) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // Don't end anything if we are not running.
     if (CC_LIKELY(!mCaptureRunning)) {
         return 0;
@@ -151,7 +151,7 @@
 }
 
 void SkiaCapture::writeToFile() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // Pass mMultiPic and mOpenMultiPicStream to a background thread, which will
     // handle the heavyweight serialization work and destroy them.
     // mOpenMultiPicStream is released to a bare pointer because keeping it in
@@ -169,7 +169,7 @@
 }
 
 bool SkiaCapture::setupMultiFrameCapture() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGD("Set up multi-frame capture, ms = %llu", mTimerInterval.count());
     base::SetProperty(PROPERTY_DEBUG_RENDERENGINE_CAPTURE_FILENAME, "");
 
diff --git a/libs/renderengine/skia/filters/BlurFilter.cpp b/libs/renderengine/skia/filters/BlurFilter.cpp
index 1e0c4cf..cd1bd71 100644
--- a/libs/renderengine/skia/filters/BlurFilter.cpp
+++ b/libs/renderengine/skia/filters/BlurFilter.cpp
@@ -25,8 +25,8 @@
 #include <SkString.h>
 #include <SkSurface.h>
 #include <SkTileMode.h>
+#include <common/trace.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 namespace android {
 namespace renderengine {
@@ -79,7 +79,7 @@
                                 const uint32_t blurRadius, const float blurAlpha,
                                 const SkRect& blurRect, sk_sp<SkImage> blurredImage,
                                 sk_sp<SkImage> input) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     SkPaint paint;
     paint.setAlphaf(blurAlpha);
diff --git a/libs/renderengine/skia/filters/EdgeExtensionShaderFactory.cpp b/libs/renderengine/skia/filters/EdgeExtensionShaderFactory.cpp
new file mode 100644
index 0000000..1dbcc29
--- /dev/null
+++ b/libs/renderengine/skia/filters/EdgeExtensionShaderFactory.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "EdgeExtensionShaderFactory.h"
+#include <SkPoint.h>
+#include <SkRuntimeEffect.h>
+#include <SkStream.h>
+#include <SkString.h>
+#include "log/log_main.h"
+
+namespace android::renderengine::skia {
+
+static const SkString edgeShader = SkString(R"(
+    uniform shader uContentTexture;
+    uniform vec2 uImgSize;
+
+    // TODO(b/214232209) oobTolerance is temporary and will be removed when the scrollbar will be
+    // hidden during the animation
+    const float oobTolerance = 15;
+    const int blurRadius = 3;
+    const float blurArea = float((2 * blurRadius + 1) * (2 * blurRadius + 1));
+
+    vec4 boxBlur(vec2 p) {
+        vec4 sumColors = vec4(0);
+
+        for (int i = -blurRadius; i <= blurRadius; i++) {
+            for (int j = -blurRadius; j <= blurRadius; j++) {
+                sumColors += uContentTexture.eval(p + vec2(i, j));
+            }
+        }
+        return sumColors / blurArea;
+    }
+
+    vec4 main(vec2 coord) {
+        vec2 nearestTexturePoint = clamp(coord, vec2(0, 0), uImgSize);
+        if (coord == nearestTexturePoint) {
+            return uContentTexture.eval(coord);
+        } else {
+            vec2 samplePoint = nearestTexturePoint + oobTolerance * normalize(
+                                    nearestTexturePoint - coord);
+            return boxBlur(samplePoint);
+        }
+    }
+)");
+
+sk_sp<SkShader> EdgeExtensionShaderFactory::createSkShader(const sk_sp<SkShader>& inputShader,
+                                                           const LayerSettings& layer,
+                                                           const SkRect& imageBounds) {
+    if (mBuilder == nullptr) {
+        const static SkRuntimeEffect::Result instance = SkRuntimeEffect::MakeForShader(edgeShader);
+        if (!instance.errorText.isEmpty()) {
+            ALOGE("EdgeExtensionShaderFactory terminated with an error: %s",
+                  instance.errorText.c_str());
+            return nullptr;
+        }
+        mBuilder = std::make_unique<SkRuntimeShaderBuilder>(instance.effect);
+    }
+    mBuilder->child("uContentTexture") = inputShader;
+    if (imageBounds.isEmpty()) {
+        mBuilder->uniform("uImgSize") = SkPoint{layer.geometry.boundaries.getWidth(),
+                                                layer.geometry.boundaries.getHeight()};
+    } else {
+        mBuilder->uniform("uImgSize") = SkPoint{imageBounds.width(), imageBounds.height()};
+    }
+    return mBuilder->makeShader();
+}
+} // namespace android::renderengine::skia
\ No newline at end of file
diff --git a/libs/renderengine/skia/filters/EdgeExtensionShaderFactory.h b/libs/renderengine/skia/filters/EdgeExtensionShaderFactory.h
new file mode 100644
index 0000000..b0a8a93
--- /dev/null
+++ b/libs/renderengine/skia/filters/EdgeExtensionShaderFactory.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <SkImage.h>
+#include <SkRect.h>
+#include <SkRuntimeEffect.h>
+#include <SkShader.h>
+#include <renderengine/LayerSettings.h>
+#include <ui/EdgeExtensionEffect.h>
+
+namespace android::renderengine::skia {
+
+/**
+ * This shader is designed to prolong the texture of a surface whose bounds have been extended over
+ * the size of the texture. This shader is similar to the default clamp, but adds a blur effect and
+ * samples from close to the edge (compared to on the edge) to avoid weird artifacts when elements
+ * (in particular, scrollbars) touch the edge.
+ */
+class EdgeExtensionShaderFactory {
+public:
+    sk_sp<SkShader> createSkShader(const sk_sp<SkShader>& inputShader, const LayerSettings& layer,
+                                   const SkRect& imageBounds);
+
+private:
+    std::unique_ptr<SkRuntimeShaderBuilder> mBuilder;
+};
+} // namespace android::renderengine::skia
diff --git a/libs/renderengine/skia/filters/GaussianBlurFilter.cpp b/libs/renderengine/skia/filters/GaussianBlurFilter.cpp
index c9499cb..8c52c57 100644
--- a/libs/renderengine/skia/filters/GaussianBlurFilter.cpp
+++ b/libs/renderengine/skia/filters/GaussianBlurFilter.cpp
@@ -19,18 +19,18 @@
 #include "GaussianBlurFilter.h"
 #include <SkBlendMode.h>
 #include <SkCanvas.h>
+#include <SkImageFilters.h>
 #include <SkPaint.h>
 #include <SkRRect.h>
 #include <SkRuntimeEffect.h>
-#include <SkImageFilters.h>
 #include <SkSize.h>
 #include <SkString.h>
 #include <SkSurface.h>
 #include <SkTileMode.h>
+#include <common/trace.h>
 #include <include/gpu/ganesh/SkSurfaceGanesh.h>
-#include "include/gpu/GpuTypes.h" // from Skia
 #include <log/log.h>
-#include <utils/Trace.h>
+#include "include/gpu/GpuTypes.h" // from Skia
 
 namespace android {
 namespace renderengine {
diff --git a/libs/renderengine/skia/filters/KawaseBlurDualFilter.cpp b/libs/renderengine/skia/filters/KawaseBlurDualFilter.cpp
new file mode 100644
index 0000000..db0b133
--- /dev/null
+++ b/libs/renderengine/skia/filters/KawaseBlurDualFilter.cpp
@@ -0,0 +1,173 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+#include "KawaseBlurDualFilter.h"
+#include <SkAlphaType.h>
+#include <SkBlendMode.h>
+#include <SkCanvas.h>
+#include <SkData.h>
+#include <SkPaint.h>
+#include <SkRRect.h>
+#include <SkRuntimeEffect.h>
+#include <SkShader.h>
+#include <SkSize.h>
+#include <SkString.h>
+#include <SkSurface.h>
+#include <SkTileMode.h>
+#include <include/gpu/GpuTypes.h>
+#include <include/gpu/ganesh/SkSurfaceGanesh.h>
+#include <log/log.h>
+#include <utils/Trace.h>
+
+namespace android {
+namespace renderengine {
+namespace skia {
+
+KawaseBlurDualFilter::KawaseBlurDualFilter() : BlurFilter() {
+    // A shader to sample each vertex of a unit regular heptagon
+    // plus the original fragment coordinate.
+    SkString blurString(R"(
+        uniform shader child;
+        uniform float in_blurOffset;
+        uniform float in_crossFade;
+
+        const float2 STEP_0 = float2( 1.0, 0.0);
+        const float2 STEP_1 = float2( 0.623489802,  0.781831482);
+        const float2 STEP_2 = float2(-0.222520934,  0.974927912);
+        const float2 STEP_3 = float2(-0.900968868,  0.433883739);
+        const float2 STEP_4 = float2( 0.900968868, -0.433883739);
+        const float2 STEP_5 = float2(-0.222520934, -0.974927912);
+        const float2 STEP_6 = float2(-0.623489802, -0.781831482);
+
+        half4 main(float2 xy) {
+            half3 c = child.eval(xy).rgb;
+
+            c += child.eval(xy + STEP_0 * in_blurOffset).rgb;
+            c += child.eval(xy + STEP_1 * in_blurOffset).rgb;
+            c += child.eval(xy + STEP_2 * in_blurOffset).rgb;
+            c += child.eval(xy + STEP_3 * in_blurOffset).rgb;
+            c += child.eval(xy + STEP_4 * in_blurOffset).rgb;
+            c += child.eval(xy + STEP_5 * in_blurOffset).rgb;
+            c += child.eval(xy + STEP_6 * in_blurOffset).rgb;
+
+            return half4(c * 0.125 * in_crossFade, in_crossFade);
+        }
+    )");
+
+    auto [blurEffect, error] = SkRuntimeEffect::MakeForShader(blurString);
+    LOG_ALWAYS_FATAL_IF(!blurEffect, "RuntimeShader error: %s", error.c_str());
+    mBlurEffect = std::move(blurEffect);
+}
+
+static sk_sp<SkSurface> makeSurface(SkiaGpuContext* context, const SkRect& origRect, int scale) {
+    SkImageInfo scaledInfo =
+            SkImageInfo::MakeN32Premul(ceil(static_cast<float>(origRect.width()) / scale),
+                                       ceil(static_cast<float>(origRect.height()) / scale));
+    return context->createRenderTarget(scaledInfo);
+}
+
+void KawaseBlurDualFilter::blurInto(const sk_sp<SkSurface>& drawSurface,
+                                    const sk_sp<SkImage>& readImage, const float radius,
+                                    const float alpha) const {
+    const float scale = static_cast<float>(drawSurface->width()) / readImage->width();
+    SkMatrix blurMatrix = SkMatrix::Scale(scale, scale);
+    blurInto(drawSurface,
+             readImage->makeShader(SkTileMode::kClamp, SkTileMode::kClamp,
+                                   SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kNone),
+                                   blurMatrix),
+             readImage->width() / static_cast<float>(drawSurface->width()), radius, alpha);
+}
+
+void KawaseBlurDualFilter::blurInto(const sk_sp<SkSurface>& drawSurface, sk_sp<SkShader> input,
+                                    const float inverseScale, const float radius,
+                                    const float alpha) const {
+    SkRuntimeShaderBuilder blurBuilder(mBlurEffect);
+    blurBuilder.child("child") = std::move(input);
+    blurBuilder.uniform("in_inverseScale") = inverseScale;
+    blurBuilder.uniform("in_blurOffset") = radius;
+    blurBuilder.uniform("in_crossFade") = alpha;
+    SkPaint paint;
+    paint.setShader(blurBuilder.makeShader(nullptr));
+    paint.setBlendMode(alpha == 1.0f ? SkBlendMode::kSrc : SkBlendMode::kSrcOver);
+    drawSurface->getCanvas()->drawPaint(paint);
+}
+
+sk_sp<SkImage> KawaseBlurDualFilter::generate(SkiaGpuContext* context, const uint32_t blurRadius,
+                                              const sk_sp<SkImage> input,
+                                              const SkRect& blurRect) const {
+    // Apply a conversion factor of (1 / sqrt(3)) to match Skia's built-in blur as used by
+    // RenderEffect. See the comment in SkBlurMask.cpp for reasoning behind this.
+    const float radius = blurRadius * 0.57735f;
+
+    // Use a variable number of blur passes depending on the radius. The non-integer part of this
+    // calculation is used to mix the final pass into the second-last with an alpha blend.
+    constexpr int kMaxSurfaces = 4;
+    const float filterDepth =
+            std::min(kMaxSurfaces - 1.0f, 1.0f + std::max(0.0f, log2f(radius * kInputScale)));
+    const int filterPasses = std::min(kMaxSurfaces - 1, static_cast<int>(ceil(filterDepth)));
+
+    // Render into surfaces downscaled by 1x, 1x, 2x, and 4x from the initial downscale.
+    sk_sp<SkSurface> surfaces[kMaxSurfaces] =
+            {filterPasses >= 0 ? makeSurface(context, blurRect, 1 * kInverseInputScale) : nullptr,
+             filterPasses >= 1 ? makeSurface(context, blurRect, 1 * kInverseInputScale) : nullptr,
+             filterPasses >= 2 ? makeSurface(context, blurRect, 2 * kInverseInputScale) : nullptr,
+             filterPasses >= 3 ? makeSurface(context, blurRect, 4 * kInverseInputScale) : nullptr};
+
+    // These weights for scaling offsets per-pass are handpicked to look good at 1 <= radius <= 600.
+    static const float kWeights[7] = {1.0f, 2.0f, 3.5f, 1.0f, 2.0f, 2.0f, 2.0f};
+
+    // Kawase is an approximation of Gaussian, but behaves differently because it is made up of many
+    // simpler blurs. A transformation is required to approximate the same effect as Gaussian.
+    float sumSquaredR = powf(kWeights[0] * powf(2.0f, 1), 2.0f);
+    for (int i = 0; i < filterPasses; i++) {
+        const float alpha = std::min(1.0f, filterDepth - i);
+        sumSquaredR += powf(powf(2.0f, i + 1) * alpha * kWeights[1 + i], 2.0f);
+        sumSquaredR += powf(powf(2.0f, i + 1) * alpha * kWeights[6 - i], 2.0f);
+    }
+    // Solve for R = sqrt(sum(r_i^2)). Divide R by hypot(1,1) to find some (x,y) offsets.
+    const float step = M_SQRT1_2 *
+            sqrtf(max(0.0f, (powf(radius, 2.0f) - powf(kInverseInputScale, 2.0f)) / sumSquaredR));
+
+    // Start by downscaling and doing the first blur pass.
+    {
+        // For sampling Skia's API expects the inverse of what logically seems appropriate. In this
+        // case one may expect Translate(blurRect.fLeft, blurRect.fTop) * Scale(kInverseInputScale)
+        // but instead we must do the inverse.
+        SkMatrix blurMatrix = SkMatrix::Translate(-blurRect.fLeft, -blurRect.fTop);
+        blurMatrix.postScale(kInputScale, kInputScale);
+        const auto sourceShader =
+                input->makeShader(SkTileMode::kClamp, SkTileMode::kClamp,
+                                  SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kNone),
+                                  blurMatrix);
+        blurInto(surfaces[0], std::move(sourceShader), kInputScale, kWeights[0] * step, 1.0f);
+    }
+    // Next the remaining downscale blur passes.
+    for (int i = 0; i < filterPasses; i++) {
+        blurInto(surfaces[i + 1], surfaces[i]->makeImageSnapshot(), kWeights[1 + i] * step, 1.0f);
+    }
+    // Finally blur+upscale back to our original size.
+    for (int i = filterPasses - 1; i >= 0; i--) {
+        blurInto(surfaces[i], surfaces[i + 1]->makeImageSnapshot(), kWeights[6 - i] * step,
+                 std::min(1.0f, filterDepth - i));
+    }
+    return surfaces[0]->makeImageSnapshot();
+}
+
+} // namespace skia
+} // namespace renderengine
+} // namespace android
diff --git a/libs/renderengine/skia/filters/KawaseBlurDualFilter.h b/libs/renderengine/skia/filters/KawaseBlurDualFilter.h
new file mode 100644
index 0000000..6f4adbf
--- /dev/null
+++ b/libs/renderengine/skia/filters/KawaseBlurDualFilter.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <SkCanvas.h>
+#include <SkImage.h>
+#include <SkRuntimeEffect.h>
+#include <SkSurface.h>
+#include "BlurFilter.h"
+
+namespace android {
+namespace renderengine {
+namespace skia {
+
+/**
+ * This is an implementation of a Kawase blur with dual-filtering passes, as described in here:
+ * https://community.arm.com/cfs-file/__key/communityserver-blogs-components-weblogfiles/00-00-00-20-66/siggraph2015_2D00_mmg_2D00_marius_2D00_slides.pdf
+ * https://community.arm.com/cfs-file/__key/communityserver-blogs-components-weblogfiles/00-00-00-20-66/siggraph2015_2D00_mmg_2D00_marius_2D00_notes.pdf
+ */
+class KawaseBlurDualFilter : public BlurFilter {
+public:
+    explicit KawaseBlurDualFilter();
+    virtual ~KawaseBlurDualFilter() {}
+
+    // Execute blur, saving it to a texture
+    sk_sp<SkImage> generate(SkiaGpuContext* context, const uint32_t radius,
+                            const sk_sp<SkImage> blurInput, const SkRect& blurRect) const override;
+
+private:
+    sk_sp<SkRuntimeEffect> mBlurEffect;
+
+    void blurInto(const sk_sp<SkSurface>& drawSurface, const sk_sp<SkImage>& readImage,
+                  const float radius, const float alpha) const;
+
+    void blurInto(const sk_sp<SkSurface>& drawSurface, const sk_sp<SkShader> input,
+                  const float inverseScale, const float radius, const float alpha) const;
+};
+
+} // namespace skia
+} // namespace renderengine
+} // namespace android
diff --git a/libs/renderengine/skia/filters/KawaseBlurFilter.cpp b/libs/renderengine/skia/filters/KawaseBlurFilter.cpp
index 7a070d7..defaf6e 100644
--- a/libs/renderengine/skia/filters/KawaseBlurFilter.cpp
+++ b/libs/renderengine/skia/filters/KawaseBlurFilter.cpp
@@ -29,10 +29,10 @@
 #include <SkString.h>
 #include <SkSurface.h>
 #include <SkTileMode.h>
+#include <common/trace.h>
 #include <include/gpu/GpuTypes.h>
 #include <include/gpu/ganesh/SkSurfaceGanesh.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 namespace android {
 namespace renderengine {
diff --git a/libs/renderengine/skia/filters/LinearEffect.cpp b/libs/renderengine/skia/filters/LinearEffect.cpp
index f7dcd3a..3bc3564 100644
--- a/libs/renderengine/skia/filters/LinearEffect.cpp
+++ b/libs/renderengine/skia/filters/LinearEffect.cpp
@@ -19,9 +19,9 @@
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
 #include <SkString.h>
+#include <common/trace.h>
 #include <log/log.h>
 #include <shaders/shaders.h>
-#include <utils/Trace.h>
 
 #include <math/mat4.h>
 
@@ -30,7 +30,7 @@
 namespace skia {
 
 sk_sp<SkRuntimeEffect> buildRuntimeEffect(const shaders::LinearEffect& linearEffect) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     SkString shaderString = SkString(shaders::buildLinearEffectSkSL(linearEffect));
 
     auto [shader, error] = SkRuntimeEffect::MakeForShader(shaderString);
@@ -45,7 +45,7 @@
         sk_sp<SkRuntimeEffect> runtimeEffect, const mat4& colorTransform, float maxDisplayLuminance,
         float currentDisplayLuminanceNits, float maxLuminance, AHardwareBuffer* buffer,
         aidl::android::hardware::graphics::composer3::RenderIntent renderIntent) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     SkRuntimeShaderBuilder effectBuilder(runtimeEffect);
 
     effectBuilder.child("child") = shader;
diff --git a/libs/renderengine/skia/filters/MouriMap.cpp b/libs/renderengine/skia/filters/MouriMap.cpp
index 7d8b8a5..b458939 100644
--- a/libs/renderengine/skia/filters/MouriMap.cpp
+++ b/libs/renderengine/skia/filters/MouriMap.cpp
@@ -35,7 +35,7 @@
         float maximum = 0.0;
         for (int y = 0; y < 16; y++) {
             for (int x = 0; x < 16; x++) {
-                float3 linear = toLinearSrgb(bitmap.eval(xy * 16 + vec2(x, y)).rgb) * hdrSdrRatio;
+                float3 linear = toLinearSrgb(bitmap.eval((xy - 0.5) * 16 + 0.5 + vec2(x, y)).rgb) * hdrSdrRatio;
                 float maxRGB = max(linear.r, max(linear.g, linear.b));
                 maximum = max(maximum, log2(max(maxRGB, 1.0)));
             }
@@ -49,7 +49,7 @@
         float maximum = 0.0;
         for (int y = 0; y < 8; y++) {
             for (int x = 0; x < 8; x++) {
-                maximum = max(maximum, bitmap.eval(xy * 8 + vec2(x, y)).r);
+                maximum = max(maximum, bitmap.eval((xy - 0.5) * 8 + 0.5 + vec2(x, y)).r);
             }
         }
         return float4(float3(maximum), 1.0);
@@ -84,13 +84,13 @@
         float3 linear = toLinearSrgb(rgba.rgb) * hdrSdrRatio;
 
         if (localMax <= 1.0) {
-            return float4(fromLinearSrgb(linear), 1.0);
+            return float4(fromLinearSrgb(linear), rgba.a);
         }
 
         float maxRGB = max(linear.r, max(linear.g, linear.b));
         localMax = max(localMax, maxRGB);
         float gain = (1 + maxRGB / (localMax * localMax)) / (1 + maxRGB);
-        return float4(fromLinearSrgb(linear * gain), 1.0);
+        return float4(fromLinearSrgb(linear * gain), rgba.a);
     }
 )");
 
diff --git a/libs/renderengine/tests/Android.bp b/libs/renderengine/tests/Android.bp
index 0783714..7fbbf49 100644
--- a/libs/renderengine/tests/Android.bp
+++ b/libs/renderengine/tests/Android.bp
@@ -66,5 +66,6 @@
         "libutils",
         "server_configurable_flags",
         "libaconfig_storage_read_api_cc",
+        "libtracing_perfetto",
     ],
 }
diff --git a/libs/renderengine/tests/RenderEngineTest.cpp b/libs/renderengine/tests/RenderEngineTest.cpp
index a8a9823..b5cc65f 100644
--- a/libs/renderengine/tests/RenderEngineTest.cpp
+++ b/libs/renderengine/tests/RenderEngineTest.cpp
@@ -34,9 +34,12 @@
 #include <ui/ColorSpace.h>
 #include <ui/PixelFormat.h>
 
+#include <algorithm>
 #include <chrono>
 #include <condition_variable>
+#include <filesystem>
 #include <fstream>
+#include <system_error>
 
 #include "../skia/SkiaGLRenderEngine.h"
 #include "../skia/SkiaVkRenderEngine.h"
@@ -259,22 +262,51 @@
 
     ~RenderEngineTest() {
         if (WRITE_BUFFER_TO_FILE_ON_FAILURE && ::testing::Test::HasFailure()) {
-            writeBufferToFile("/data/texture_out_");
+            writeBufferToFile("/data/local/tmp/RenderEngineTest/");
         }
         const ::testing::TestInfo* const test_info =
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGI("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
     }
 
-    void writeBufferToFile(const char* basename) {
-        std::string filename(basename);
-        filename.append(::testing::UnitTest::GetInstance()->current_test_info()->name());
-        filename.append(".ppm");
-        std::ofstream file(filename.c_str(), std::ios::binary);
+    // If called during e.g.
+    // `PerRenderEngineType/RenderEngineTest#drawLayers_fillBufferCheckersRotate90_colorSource/0`
+    // with a directory of `/data/local/tmp/RenderEngineTest`, then mBuffer will be dumped to
+    // `/data/local/tmp/RenderEngineTest/drawLayers_fillBufferCheckersRotate90_colorSource-0.ppm`
+    //
+    // Note: if `directory` does not exist, then its full path will be recursively created with 777
+    // permissions. If `directory` already exists but does not grant the executing user write
+    // permissions, then saving the buffer will fail.
+    //
+    // Since this is test-only code, no security considerations are made.
+    void writeBufferToFile(const filesystem::path& directory) {
+        const auto currentTestInfo = ::testing::UnitTest::GetInstance()->current_test_info();
+        LOG_ALWAYS_FATAL_IF(!currentTestInfo,
+                            "writeBufferToFile must be called during execution of a test");
+
+        std::string fileName(currentTestInfo->name());
+        // Test names may include the RenderEngine variant separated by '/', which would separate
+        // the file name into a subdirectory if not corrected.
+        std::replace(fileName.begin(), fileName.end(), '/', '-');
+        fileName.append(".ppm");
+
+        std::error_code err;
+        filesystem::create_directories(directory, err);
+        if (err.value()) {
+            ALOGE("Unable to create directory %s for writing %s (%d: %s)", directory.c_str(),
+                  fileName.c_str(), err.value(), err.message().c_str());
+            return;
+        }
+
+        // Append operator ("/") ensures exactly one "/" directly before the argument.
+        const filesystem::path filePath = directory / fileName;
+        std::ofstream file(filePath.c_str(), std::ios::binary);
         if (!file.is_open()) {
-            ALOGE("Unable to open file: %s", filename.c_str());
-            ALOGE("You may need to do: \"adb shell setenforce 0\" to enable "
-                  "surfaceflinger to write debug images");
+            ALOGE("Unable to open file: %s", filePath.c_str());
+            ALOGE("You may need to do: \"adb shell setenforce 0\" to enable surfaceflinger to "
+                  "write debug images, or the %s directory might not give the executing user write "
+                  "permission",
+                  directory.c_str());
             return;
         }
 
@@ -304,6 +336,7 @@
             }
         }
         file.write(reinterpret_cast<char*>(outBuffer.data()), outBuffer.size());
+        ALOGI("Image of incorrect output written to %s", filePath.c_str());
         mBuffer->getBuffer()->unlock();
     }
 
@@ -3147,6 +3180,214 @@
     expectBufferColor(Rect(0, 0, 1, 1), 0,  70, 0, 255);
 }
 
+TEST_P(RenderEngineTest, localTonemap_preservesFullscreenSdr) {
+    if (!GetParam()->apiSupported()) {
+        GTEST_SKIP();
+    }
+
+    initializeRenderEngine();
+
+    mBuffer = std::make_shared<
+            renderengine::impl::
+                    ExternalTexture>(sp<GraphicBuffer>::make(1, 1, HAL_PIXEL_FORMAT_RGBA_8888, 1,
+                                                             GRALLOC_USAGE_SW_READ_OFTEN |
+                                                                     GRALLOC_USAGE_SW_WRITE_OFTEN |
+                                                                     GRALLOC_USAGE_HW_RENDER |
+                                                                     GRALLOC_USAGE_HW_TEXTURE,
+                                                             "output"),
+                                     *mRE,
+                                     renderengine::impl::ExternalTexture::Usage::READABLE |
+                                             renderengine::impl::ExternalTexture::Usage::WRITEABLE);
+    ASSERT_EQ(0, mBuffer->getBuffer()->initCheck());
+
+    const auto whiteBuffer = allocateAndFillSourceBuffer(1, 1, ubyte4(51, 51, 51, 255));
+
+    const auto rect = Rect(0, 0, 1, 1);
+    const renderengine::DisplaySettings display{
+            .physicalDisplay = rect,
+            .clip = rect,
+            .outputDataspace = ui::Dataspace::SRGB,
+            .targetLuminanceNits = 40,
+            .tonemapStrategy = renderengine::DisplaySettings::TonemapStrategy::Local,
+    };
+
+    const renderengine::LayerSettings whiteLayer{
+            .geometry.boundaries = rect.toFloatRect(),
+            .source =
+                    renderengine::PixelSource{
+                            .buffer =
+                                    renderengine::Buffer{
+                                            .buffer = whiteBuffer,
+                                    },
+                    },
+            .alpha = 1.0f,
+            .sourceDataspace = ui::Dataspace::V0_SCRGB_LINEAR,
+            .whitePointNits = 200,
+    };
+
+    std::vector<renderengine::LayerSettings> layers{whiteLayer};
+    invokeDraw(display, layers);
+
+    expectBufferColor(Rect(0, 0, 1, 1), 255, 255, 255, 255);
+}
+
+TEST_P(RenderEngineTest, localTonemap_preservesFarawaySdrRegions) {
+    if (!GetParam()->apiSupported()) {
+        GTEST_SKIP();
+    }
+
+    initializeRenderEngine();
+
+    const auto blockWidth = 256;
+    const auto width = blockWidth * 4;
+
+    const auto buffer = allocateSourceBuffer(width, 1);
+
+    mBuffer = std::make_shared<
+            renderengine::impl::
+                    ExternalTexture>(sp<GraphicBuffer>::make(width, 1, HAL_PIXEL_FORMAT_RGBA_8888,
+                                                             1,
+                                                             GRALLOC_USAGE_SW_READ_OFTEN |
+                                                                     GRALLOC_USAGE_SW_WRITE_OFTEN |
+                                                                     GRALLOC_USAGE_HW_RENDER |
+                                                                     GRALLOC_USAGE_HW_TEXTURE,
+                                                             "output"),
+                                     *mRE,
+                                     renderengine::impl::ExternalTexture::Usage::READABLE |
+                                             renderengine::impl::ExternalTexture::Usage::WRITEABLE);
+
+    {
+        uint8_t* pixels;
+        buffer->getBuffer()->lock(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
+                                  reinterpret_cast<void**>(&pixels));
+        uint8_t* dst = pixels;
+        for (uint32_t i = 0; i < width; i++) {
+            uint8_t value = 0;
+            if (i < blockWidth) {
+                value = 51;
+            } else if (i >= blockWidth * 3) {
+                value = 255;
+            }
+            dst[0] = value;
+            dst[1] = value;
+            dst[2] = value;
+            dst[3] = 255;
+            dst += 4;
+        }
+        buffer->getBuffer()->unlock();
+    }
+
+    const auto rect = Rect(0, 0, width, 1);
+    const renderengine::DisplaySettings display{
+            .physicalDisplay = rect,
+            .clip = rect,
+            .outputDataspace = ui::Dataspace::V0_SRGB_LINEAR,
+            .targetLuminanceNits = 40,
+            .tonemapStrategy = renderengine::DisplaySettings::TonemapStrategy::Local,
+    };
+
+    const renderengine::LayerSettings whiteLayer{
+            .geometry.boundaries = rect.toFloatRect(),
+            .source =
+                    renderengine::PixelSource{
+                            .buffer =
+                                    renderengine::Buffer{
+                                            .buffer = buffer,
+                                    },
+                    },
+            .alpha = 1.0f,
+            .sourceDataspace = ui::Dataspace::V0_SCRGB_LINEAR,
+            .whitePointNits = 200,
+    };
+
+    std::vector<renderengine::LayerSettings> layers{whiteLayer};
+    invokeDraw(display, layers);
+
+    // SDR regions are boosted to preserve SDR detail.
+    expectBufferColor(Rect(0, 0, blockWidth, 1), 255, 255, 255, 255);
+    expectBufferColor(Rect(blockWidth, 0, blockWidth * 2, 1), 0, 0, 0, 255);
+    expectBufferColor(Rect(blockWidth * 2, 0, blockWidth * 3, 1), 0, 0, 0, 255);
+    expectBufferColor(Rect(blockWidth * 3, 0, blockWidth * 4, 1), 255, 255, 255, 255);
+}
+
+TEST_P(RenderEngineTest, localTonemap_tonemapsNearbySdrRegions) {
+    if (!GetParam()->apiSupported()) {
+        GTEST_SKIP();
+    }
+
+    initializeRenderEngine();
+
+    const auto blockWidth = 2;
+    const auto width = blockWidth * 2;
+
+    mBuffer = std::make_shared<
+            renderengine::impl::
+                    ExternalTexture>(sp<GraphicBuffer>::make(width, 1, HAL_PIXEL_FORMAT_RGBA_8888,
+                                                             1,
+                                                             GRALLOC_USAGE_SW_READ_OFTEN |
+                                                                     GRALLOC_USAGE_SW_WRITE_OFTEN |
+                                                                     GRALLOC_USAGE_HW_RENDER |
+                                                                     GRALLOC_USAGE_HW_TEXTURE,
+                                                             "output"),
+                                     *mRE,
+                                     renderengine::impl::ExternalTexture::Usage::READABLE |
+                                             renderengine::impl::ExternalTexture::Usage::WRITEABLE);
+
+    const auto buffer = allocateSourceBuffer(width, 1);
+
+    {
+        uint8_t* pixels;
+        buffer->getBuffer()->lock(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
+                                  reinterpret_cast<void**>(&pixels));
+        uint8_t* dst = pixels;
+        for (uint32_t i = 0; i < width; i++) {
+            uint8_t value = 0;
+            if (i < blockWidth) {
+                value = 51;
+            } else if (i >= blockWidth) {
+                value = 255;
+            }
+            dst[0] = value;
+            dst[1] = value;
+            dst[2] = value;
+            dst[3] = 255;
+            dst += 4;
+        }
+        buffer->getBuffer()->unlock();
+    }
+
+    const auto rect = Rect(0, 0, width, 1);
+    const renderengine::DisplaySettings display{
+            .physicalDisplay = rect,
+            .clip = rect,
+            .outputDataspace = ui::Dataspace::V0_SRGB_LINEAR,
+            .targetLuminanceNits = 40,
+            .tonemapStrategy = renderengine::DisplaySettings::TonemapStrategy::Local,
+    };
+
+    const renderengine::LayerSettings whiteLayer{
+            .geometry.boundaries = rect.toFloatRect(),
+            .source =
+                    renderengine::PixelSource{
+                            .buffer =
+                                    renderengine::Buffer{
+                                            .buffer = buffer,
+                                    },
+                    },
+            .alpha = 1.0f,
+            .sourceDataspace = ui::Dataspace::V0_SCRGB_LINEAR,
+            .whitePointNits = 200,
+    };
+
+    std::vector<renderengine::LayerSettings> layers{whiteLayer};
+    invokeDraw(display, layers);
+
+    // SDR regions remain "dimmed", but preserve detail with a roll-off curve.
+    expectBufferColor(Rect(0, 0, blockWidth, 1), 132, 132, 132, 255, 2);
+    // HDR regions are not dimmed.
+    expectBufferColor(Rect(blockWidth, 0, blockWidth * 2, 1), 255, 255, 255, 255);
+}
+
 TEST_P(RenderEngineTest, primeShaderCache) {
     // TODO: b/331447071 - Fix in Graphite and re-enable.
     if (GetParam()->skiaBackend() == renderengine::RenderEngine::SkiaBackend::GRAPHITE) {
diff --git a/libs/renderengine/threaded/RenderEngineThreaded.cpp b/libs/renderengine/threaded/RenderEngineThreaded.cpp
index d27c151..f5a90fd 100644
--- a/libs/renderengine/threaded/RenderEngineThreaded.cpp
+++ b/libs/renderengine/threaded/RenderEngineThreaded.cpp
@@ -23,9 +23,9 @@
 #include <future>
 
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <private/gui/SyncFeatures.h>
 #include <processgroup/processgroup.h>
-#include <utils/Trace.h>
 
 using namespace std::chrono_literals;
 
@@ -39,7 +39,7 @@
 
 RenderEngineThreaded::RenderEngineThreaded(CreateInstanceFactory factory)
       : RenderEngine(Threaded::YES) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard lockThread(mThreadMutex);
     mThread = std::thread(&RenderEngineThreaded::threadMain, this, factory);
@@ -76,7 +76,7 @@
 
 // NO_THREAD_SAFETY_ANALYSIS is because std::unique_lock presently lacks thread safety annotations.
 void RenderEngineThreaded::threadMain(CreateInstanceFactory factory) NO_THREAD_SAFETY_ANALYSIS {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!SetTaskProfiles(0, {"SFRenderEnginePolicy"})) {
         ALOGW("Failed to set render-engine task profile!");
@@ -133,13 +133,13 @@
 std::future<void> RenderEngineThreaded::primeCache(PrimeCacheConfig config) {
     const auto resultPromise = std::make_shared<std::promise<void>>();
     std::future<void> resultFuture = resultPromise->get_future();
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // This function is designed so it can run asynchronously, so we do not need to wait
     // for the futures.
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([resultPromise, config](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::primeCache");
+            SFTRACE_NAME("REThreaded::primeCache");
             if (setSchedFifo(false) != NO_ERROR) {
                 ALOGW("Couldn't set SCHED_OTHER for primeCache");
             }
@@ -163,7 +163,7 @@
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([&resultPromise, &result](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::dump");
+            SFTRACE_NAME("REThreaded::dump");
             std::string localResult = result;
             instance.dump(localResult);
             resultPromise.set_value(std::move(localResult));
@@ -176,13 +176,13 @@
 
 void RenderEngineThreaded::mapExternalTextureBuffer(const sp<GraphicBuffer>& buffer,
                                                     bool isRenderable) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // This function is designed so it can run asynchronously, so we do not need to wait
     // for the futures.
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([=](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::mapExternalTextureBuffer");
+            SFTRACE_NAME("REThreaded::mapExternalTextureBuffer");
             instance.mapExternalTextureBuffer(buffer, isRenderable);
         });
     }
@@ -190,14 +190,14 @@
 }
 
 void RenderEngineThreaded::unmapExternalTextureBuffer(sp<GraphicBuffer>&& buffer) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // This function is designed so it can run asynchronously, so we do not need to wait
     // for the futures.
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push(
                 [=, buffer = std::move(buffer)](renderengine::RenderEngine& instance) mutable {
-                    ATRACE_NAME("REThreaded::unmapExternalTextureBuffer");
+                    SFTRACE_NAME("REThreaded::unmapExternalTextureBuffer");
                     instance.unmapExternalTextureBuffer(std::move(buffer));
                 });
     }
@@ -229,7 +229,7 @@
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([=](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::cleanupPostRender");
+            SFTRACE_NAME("REThreaded::cleanupPostRender");
             instance.cleanupPostRender();
         });
         mNeedsPostRenderCleanup = false;
@@ -252,7 +252,7 @@
 ftl::Future<FenceResult> RenderEngineThreaded::drawLayers(
         const DisplaySettings& display, const std::vector<LayerSettings>& layers,
         const std::shared_ptr<ExternalTexture>& buffer, base::unique_fd&& bufferFence) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const auto resultPromise = std::make_shared<std::promise<FenceResult>>();
     std::future<FenceResult> resultFuture = resultPromise->get_future();
     int fd = bufferFence.release();
@@ -261,7 +261,7 @@
         mNeedsPostRenderCleanup = true;
         mFunctionCalls.push(
                 [resultPromise, display, layers, buffer, fd](renderengine::RenderEngine& instance) {
-                    ATRACE_NAME("REThreaded::drawLayers");
+                    SFTRACE_NAME("REThreaded::drawLayers");
                     instance.updateProtectedContext(layers, buffer);
                     instance.drawLayersInternal(std::move(resultPromise), display, layers, buffer,
                                                 base::unique_fd(fd));
@@ -277,7 +277,7 @@
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([&resultPromise](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::getContextPriority");
+            SFTRACE_NAME("REThreaded::getContextPriority");
             int priority = instance.getContextPriority();
             resultPromise.set_value(priority);
         });
@@ -297,7 +297,7 @@
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([size](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::onActiveDisplaySizeChanged");
+            SFTRACE_NAME("REThreaded::onActiveDisplaySizeChanged");
             instance.onActiveDisplaySizeChanged(size);
         });
     }
@@ -324,7 +324,7 @@
     {
         std::lock_guard lock(mThreadMutex);
         mFunctionCalls.push([tracingEnabled](renderengine::RenderEngine& instance) {
-            ATRACE_NAME("REThreaded::setEnableTracing");
+            SFTRACE_NAME("REThreaded::setEnableTracing");
             instance.setEnableTracing(tracingEnabled);
         });
     }
diff --git a/libs/sensor/Android.bp b/libs/sensor/Android.bp
index 7fa47b4..659666d 100644
--- a/libs/sensor/Android.bp
+++ b/libs/sensor/Android.bp
@@ -63,6 +63,8 @@
         "libhardware",
         "libpermission",
         "android.companion.virtual.virtualdevice_aidl-cpp",
+        "libaconfig_storage_read_api_cc",
+        "server_configurable_flags",
     ],
 
     static_libs: [
diff --git a/libs/sensor/SensorEventQueue.cpp b/libs/sensor/SensorEventQueue.cpp
index 4438d45..bec9255 100644
--- a/libs/sensor/SensorEventQueue.cpp
+++ b/libs/sensor/SensorEventQueue.cpp
@@ -15,31 +15,41 @@
  */
 
 #define LOG_TAG "Sensors"
-
-#include <sensor/SensorEventQueue.h>
-
-#include <algorithm>
-#include <sys/socket.h>
-
-#include <utils/RefBase.h>
-#include <utils/Looper.h>
-
-#include <sensor/Sensor.h>
-#include <sensor/BitTube.h>
-#include <sensor/ISensorEventConnection.h>
+#define ATRACE_TAG ATRACE_TAG_SYSTEM_SERVER
 
 #include <android/sensor.h>
+#include <com_android_hardware_libsensor_flags.h>
+#include <cutils/trace.h>
 #include <hardware/sensors-base.h>
+#include <sensor/BitTube.h>
+#include <sensor/ISensorEventConnection.h>
+#include <sensor/Sensor.h>
+#include <sensor/SensorEventQueue.h>
+#include <sensor/SensorManager.h>
+#include <sys/socket.h>
+#include <utils/Looper.h>
+#include <utils/RefBase.h>
+
+#include <algorithm>
+#include <cinttypes>
+#include <string>
 
 using std::min;
+namespace libsensor_flags = com::android::hardware::libsensor::flags;
 
 // ----------------------------------------------------------------------------
 namespace android {
 // ----------------------------------------------------------------------------
 
-SensorEventQueue::SensorEventQueue(const sp<ISensorEventConnection>& connection)
-    : mSensorEventConnection(connection), mRecBuffer(nullptr), mAvailable(0), mConsumed(0),
-      mNumAcksToSend(0) {
+SensorEventQueue::SensorEventQueue(const sp<ISensorEventConnection>& connection,
+                                   SensorManager& sensorManager, String8 packageName)
+      : mSensorEventConnection(connection),
+        mRecBuffer(nullptr),
+        mSensorManager(sensorManager),
+        mPackageName(packageName),
+        mAvailable(0),
+        mConsumed(0),
+        mNumAcksToSend(0) {
     mRecBuffer = new ASensorEvent[MAX_RECEIVE_BUFFER_EVENT_COUNT];
 }
 
@@ -65,8 +75,8 @@
 
 ssize_t SensorEventQueue::read(ASensorEvent* events, size_t numEvents) {
     if (mAvailable == 0) {
-        ssize_t err = BitTube::recvObjects(mSensorChannel,
-                mRecBuffer, MAX_RECEIVE_BUFFER_EVENT_COUNT);
+        ssize_t err =
+                BitTube::recvObjects(mSensorChannel, mRecBuffer, MAX_RECEIVE_BUFFER_EVENT_COUNT);
         if (err < 0) {
             return err;
         }
@@ -75,6 +85,23 @@
     }
     size_t count = min(numEvents, mAvailable);
     memcpy(events, mRecBuffer + mConsumed, count * sizeof(ASensorEvent));
+
+    if (CC_UNLIKELY(ATRACE_ENABLED()) &&
+        libsensor_flags::sensor_event_queue_report_sensor_usage_in_tracing()) {
+        for (size_t i = 0; i < count; i++) {
+            std::optional<std::string_view> sensorName =
+                    mSensorManager.getSensorNameByHandle(events->sensor);
+            if (sensorName.has_value()) {
+                char buffer[UINT8_MAX];
+                IPCThreadState* thread = IPCThreadState::self();
+                pid_t pid = (thread != nullptr) ? thread->getCallingPid() : -1;
+                std::snprintf(buffer, sizeof(buffer),
+                              "Sensor event from %s to %s PID: %d (%zu/%zu)",
+                              sensorName.value().data(), mPackageName.c_str(), pid, i, count);
+                ATRACE_INSTANT_FOR_TRACK(LOG_TAG, buffer);
+            }
+        }
+    }
     mAvailable -= count;
     mConsumed += count;
     return static_cast<ssize_t>(count);
diff --git a/libs/sensor/SensorManager.cpp b/libs/sensor/SensorManager.cpp
index 9411e20..7b4a86c 100644
--- a/libs/sensor/SensorManager.cpp
+++ b/libs/sensor/SensorManager.cpp
@@ -38,6 +38,7 @@
 #include <sensor/SensorEventQueue.h>
 
 #include <com_android_hardware_libsensor_flags.h>
+namespace libsensor_flags = com::android::hardware::libsensor::flags;
 
 // ----------------------------------------------------------------------------
 namespace android {
@@ -72,12 +73,25 @@
                 return deviceId;
             }
         }
-    } else {
-        ALOGW("Cannot get virtualdevice_native service");
     }
     return DEVICE_ID_DEFAULT;
 }
 
+bool findSensorNameInList(int32_t handle, const Vector<Sensor>& sensorList,
+                          std::string* outString) {
+    for (auto& sensor : sensorList) {
+        if (sensor.getHandle() == handle) {
+            std::ostringstream oss;
+            oss << sensor.getStringType() << ":" << sensor.getName();
+            if (outString) {
+                *outString = oss.str();
+            }
+            return true;
+        }
+    }
+    return false;
+}
+
 }  // namespace
 
 Mutex SensorManager::sLock;
@@ -355,6 +369,25 @@
     return nullptr;
 }
 
+std::optional<std::string_view> SensorManager::getSensorNameByHandle(int32_t handle) {
+    std::lock_guard<std::mutex> lock(mSensorHandleToNameMutex);
+    auto iterator = mSensorHandleToName.find(handle);
+    if (iterator != mSensorHandleToName.end()) {
+        return iterator->second;
+    }
+
+    std::string sensorName;
+    if (!findSensorNameInList(handle, mSensors, &sensorName) &&
+        !findSensorNameInList(handle, mDynamicSensors, &sensorName)) {
+        ALOGW("Cannot find sensor with handle %d", handle);
+        return std::nullopt;
+    }
+
+    mSensorHandleToName[handle] = std::move(sensorName);
+
+    return mSensorHandleToName[handle];
+}
+
 sp<SensorEventQueue> SensorManager::createEventQueue(
     String8 packageName, int mode, String16 attributionTag) {
     sp<SensorEventQueue> queue;
@@ -368,7 +401,7 @@
             ALOGE("createEventQueue: connection is NULL.");
             return nullptr;
         }
-        queue = new SensorEventQueue(connection);
+        queue = new SensorEventQueue(connection, *this, packageName);
         break;
     }
     return queue;
diff --git a/libs/sensor/include/sensor/SensorEventQueue.h b/libs/sensor/include/sensor/SensorEventQueue.h
index 8c3fde0..d31def7 100644
--- a/libs/sensor/include/sensor/SensorEventQueue.h
+++ b/libs/sensor/include/sensor/SensorEventQueue.h
@@ -20,9 +20,10 @@
 #include <sys/types.h>
 
 #include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <utils/Timers.h>
 #include <utils/Mutex.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <utils/Timers.h>
 
 #include <sensor/BitTube.h>
 
@@ -42,6 +43,7 @@
 // ----------------------------------------------------------------------------
 
 class ISensorEventConnection;
+class SensorManager;
 class Sensor;
 class Looper;
 
@@ -65,7 +67,8 @@
     // Default sensor sample period
     static constexpr int32_t SENSOR_DELAY_NORMAL = 200000;
 
-    explicit SensorEventQueue(const sp<ISensorEventConnection>& connection);
+    explicit SensorEventQueue(const sp<ISensorEventConnection>& connection,
+                              SensorManager& sensorManager, String8 packageName);
     virtual ~SensorEventQueue();
     virtual void onFirstRef();
 
@@ -107,6 +110,8 @@
     mutable Mutex mLock;
     mutable sp<Looper> mLooper;
     ASensorEvent* mRecBuffer;
+    SensorManager& mSensorManager;
+    String8 mPackageName;
     size_t mAvailable;
     size_t mConsumed;
     uint32_t mNumAcksToSend;
diff --git a/libs/sensor/include/sensor/SensorManager.h b/libs/sensor/include/sensor/SensorManager.h
index 49f050a..8d7237d 100644
--- a/libs/sensor/include/sensor/SensorManager.h
+++ b/libs/sensor/include/sensor/SensorManager.h
@@ -17,22 +17,20 @@
 #ifndef ANDROID_GUI_SENSOR_MANAGER_H
 #define ANDROID_GUI_SENSOR_MANAGER_H
 
-#include <map>
-#include <unordered_map>
-
-#include <stdint.h>
-#include <sys/types.h>
-
 #include <binder/IBinder.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
-
+#include <sensor/SensorEventQueue.h>
+#include <stdint.h>
+#include <sys/types.h>
 #include <utils/Errors.h>
+#include <utils/String8.h>
 #include <utils/StrongPointer.h>
 #include <utils/Vector.h>
-#include <utils/String8.h>
 
-#include <sensor/SensorEventQueue.h>
+#include <map>
+#include <string>
+#include <unordered_map>
 
 // ----------------------------------------------------------------------------
 // Concrete types for the NDK
@@ -66,6 +64,7 @@
     sp<SensorEventQueue> createEventQueue(
         String8 packageName = String8(""), int mode = 0, String16 attributionTag = String16(""));
     bool isDataInjectionEnabled();
+    std::optional<std::string_view> getSensorNameByHandle(int32_t handle);
     bool isReplayDataInjectionEnabled();
     bool isHalBypassReplayDataInjectionEnabled();
     int createDirectChannel(size_t size, int channelType, const native_handle_t *channelData);
@@ -97,6 +96,9 @@
     const String16 mOpPackageName;
     const int mDeviceId;
     std::unordered_map<int, sp<ISensorEventConnection>> mDirectConnection;
+
+    std::mutex mSensorHandleToNameMutex;
+    std::unordered_map<int32_t, std::string> mSensorHandleToName;
     int32_t mDirectConnectionHandle;
 };
 
diff --git a/libs/tracing_perfetto/Android.bp b/libs/tracing_perfetto/Android.bp
index 3a4c869..b5c56c5 100644
--- a/libs/tracing_perfetto/Android.bp
+++ b/libs/tracing_perfetto/Android.bp
@@ -40,6 +40,7 @@
     ],
 
     shared_libs: [
+        "libbase",
         "libcutils",
         "libperfetto_c",
         "android.os.flags-aconfig-cc-host",
diff --git a/libs/tracing_perfetto/include/tracing_perfetto.h b/libs/tracing_perfetto/include/tracing_perfetto.h
index 2c1c2a4..59c43d6 100644
--- a/libs/tracing_perfetto/include/tracing_perfetto.h
+++ b/libs/tracing_perfetto/include/tracing_perfetto.h
@@ -14,40 +14,40 @@
  * limitations under the License.
  */
 
-#ifndef TRACING_PERFETTO_H
-#define TRACING_PERFETTO_H
+#pragma once
 
 #include <stdint.h>
 
-#include "trace_result.h"
-
 namespace tracing_perfetto {
 
 void registerWithPerfetto(bool test = false);
 
-Result traceBegin(uint64_t category, const char* name);
+void traceBegin(uint64_t category, const char* name);
 
-Result traceEnd(uint64_t category);
+void traceEnd(uint64_t category);
 
-Result traceAsyncBegin(uint64_t category, const char* name, int32_t cookie);
+void traceAsyncBegin(uint64_t category, const char* name, int32_t cookie);
 
-Result traceAsyncEnd(uint64_t category, const char* name, int32_t cookie);
+void traceFormatBegin(uint64_t category, const char* fmt, ...);
 
-Result traceAsyncBeginForTrack(uint64_t category, const char* name,
+void traceAsyncEnd(uint64_t category, const char* name, int32_t cookie);
+
+void traceAsyncBeginForTrack(uint64_t category, const char* name,
                                const char* trackName, int32_t cookie);
 
-Result traceAsyncEndForTrack(uint64_t category, const char* trackName,
+void traceAsyncEndForTrack(uint64_t category, const char* trackName,
                              int32_t cookie);
 
-Result traceInstant(uint64_t category, const char* name);
+void traceInstant(uint64_t category, const char* name);
 
-Result traceInstantForTrack(uint64_t category, const char* trackName,
+void traceFormatInstant(uint64_t category, const char* fmt, ...);
+
+void traceInstantForTrack(uint64_t category, const char* trackName,
                             const char* name);
 
-Result traceCounter(uint64_t category, const char* name, int64_t value);
+void traceCounter(uint64_t category, const char* name, int64_t value);
+
+void traceCounter32(uint64_t category, const char* name, int32_t value);
 
 bool isTagEnabled(uint64_t category);
-
 }  // namespace tracing_perfetto
-
-#endif  // TRACING_PERFETTO_H
diff --git a/libs/tracing_perfetto/tests/Android.bp b/libs/tracing_perfetto/tests/Android.bp
index a35b0e0..d203467 100644
--- a/libs/tracing_perfetto/tests/Android.bp
+++ b/libs/tracing_perfetto/tests/Android.bp
@@ -26,6 +26,7 @@
     static_libs: [
         "libflagtest",
         "libgmock",
+        "perfetto_trace_protos",
     ],
     cflags: [
         "-Wall",
@@ -35,6 +36,8 @@
         "android.os.flags-aconfig-cc-host",
         "libbase",
         "libperfetto_c",
+        "liblog",
+        "libprotobuf-cpp-lite",
         "libtracing_perfetto",
     ],
     srcs: [
diff --git a/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp b/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp
index 7716b9a..e9fee2e 100644
--- a/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp
+++ b/libs/tracing_perfetto/tests/tracing_perfetto_test.cpp
@@ -16,10 +16,10 @@
 
 #include "tracing_perfetto.h"
 
-#include <thread>
-
 #include <android_os.h>
 #include <flag_macros.h>
+#include <thread>
+#include <unistd.h>
 
 #include "gtest/gtest.h"
 #include "perfetto/public/abi/data_source_abi.h"
@@ -45,67 +45,182 @@
 #include "trace_categories.h"
 #include "utils.h"
 
+#include "protos/perfetto/trace/trace.pb.h"
+#include "protos/perfetto/trace/trace_packet.pb.h"
+#include "protos/perfetto/trace/interned_data/interned_data.pb.h"
+
+#include <fstream>
+#include <iterator>
 namespace tracing_perfetto {
 
-using ::perfetto::shlib::test_utils::AllFieldsWithId;
-using ::perfetto::shlib::test_utils::FieldView;
-using ::perfetto::shlib::test_utils::IdFieldView;
-using ::perfetto::shlib::test_utils::MsgField;
-using ::perfetto::shlib::test_utils::PbField;
-using ::perfetto::shlib::test_utils::StringField;
+using ::perfetto::protos::Trace;
+using ::perfetto::protos::TracePacket;
+using ::perfetto::protos::EventCategory;
+using ::perfetto::protos::EventName;
+using ::perfetto::protos::FtraceEvent;
+using ::perfetto::protos::FtraceEventBundle;
+using ::perfetto::protos::InternedData;
+
 using ::perfetto::shlib::test_utils::TracingSession;
-using ::perfetto::shlib::test_utils::VarIntField;
-using ::testing::_;
-using ::testing::ElementsAre;
-using ::testing::UnorderedElementsAre;
 
 const auto PERFETTO_SDK_TRACING = ACONFIG_FLAG(android::os, perfetto_sdk_tracing);
 
+// TODO(b/303199244): Add tests for all the library functions.
 class TracingPerfettoTest : public testing::Test {
  protected:
   void SetUp() override {
-    tracing_perfetto::registerWithPerfetto(true /* test */);
+    tracing_perfetto::registerWithPerfetto(false /* test */);
   }
 };
 
-// TODO(b/303199244): Add tests for all the library functions.
-
-TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstant,
-                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
-  TracingSession tracing_session =
-      TracingSession::Builder().set_data_source_name("track_event").Build();
-  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, "");
-
+Trace stopSession(TracingSession& tracing_session) {
+  tracing_session.FlushBlocking(5000);
   tracing_session.StopBlocking();
   std::vector<uint8_t> data = tracing_session.ReadBlocking();
+  std::string data_string(data.begin(), data.end());
+
+  perfetto::protos::Trace trace;
+  trace.ParseFromString(data_string);
+
+  return trace;
+}
+
+void verifyTrackEvent(const Trace& trace, const std::string expected_category,
+                      const std::string& expected_name) {
   bool found = false;
-  for (struct PerfettoPbDecoderField trace_field : FieldView(data)) {
-    ASSERT_THAT(trace_field, PbField(perfetto_protos_Trace_packet_field_number,
-                                     MsgField(_)));
-    IdFieldView track_event(
-        trace_field, perfetto_protos_TracePacket_track_event_field_number);
-    if (track_event.size() == 0) {
-      continue;
+  for (const TracePacket& packet: trace.packet()) {
+    if (packet.has_track_event() && packet.has_interned_data()) {
+
+      const InternedData& interned_data = packet.interned_data();
+      if (interned_data.event_categories_size() > 0) {
+        const EventCategory& event_category = packet.interned_data().event_categories(0);
+        if (event_category.name() == expected_category) {
+          found = true;
+        }
+      }
+
+      if (interned_data.event_names_size() > 0) {
+        const EventName& event_name = packet.interned_data().event_names(0);
+        if (event_name.name() == expected_name) {
+          found &= true;
+        }
+      }
+
+      if (found) {
+        break;
+      }
     }
-    found = true;
-    IdFieldView cat_iid_fields(
-        track_event.front(),
-        perfetto_protos_TrackEvent_category_iids_field_number);
-    ASSERT_THAT(cat_iid_fields, ElementsAre(VarIntField(_)));
-    uint64_t cat_iid = cat_iid_fields.front().value.integer64;
-    EXPECT_THAT(
-        trace_field,
-        AllFieldsWithId(
-            perfetto_protos_TracePacket_interned_data_field_number,
-            ElementsAre(AllFieldsWithId(
-                perfetto_protos_InternedData_event_categories_field_number,
-                ElementsAre(MsgField(UnorderedElementsAre(
-                    PbField(perfetto_protos_EventCategory_iid_field_number,
-                            VarIntField(cat_iid)),
-                    PbField(perfetto_protos_EventCategory_name_field_number,
-                            StringField("input")))))))));
   }
   EXPECT_TRUE(found);
 }
 
-}  // namespace tracing_perfetto
\ No newline at end of file
+void verifyAtraceEvent(const Trace& trace, const std::string& expected_name) {
+  std::string expected_print_buf = "I|" + std::to_string(gettid()) + "|" + expected_name + "\n";
+
+  bool found = false;
+  for (const TracePacket& packet: trace.packet()) {
+    if (packet.has_ftrace_events()) {
+      const FtraceEventBundle& ftrace_events_bundle = packet.ftrace_events();
+
+      if (ftrace_events_bundle.event_size() > 0) {
+        const FtraceEvent& ftrace_event = ftrace_events_bundle.event(0);
+        if (ftrace_event.has_print() && (ftrace_event.print().buf() == expected_print_buf)) {
+          found = true;
+          break;
+        }
+      }
+    }
+  }
+  EXPECT_TRUE(found);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfetto,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfetto";
+
+  TracingSession tracing_session =
+      TracingSession::Builder().add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyTrackEvent(trace, event_category, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithAtrace,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithAtrace";
+
+  TracingSession tracing_session =
+      TracingSession::Builder().add_atrace_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyAtraceEvent(trace, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfettoAndAtrace,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfettoAndAtrace";
+
+  TracingSession tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyAtraceEvent(trace, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfettoAndAtraceAndPreferTrackEvent,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfettoAndAtraceAndPreferTrackEvent";
+
+  TracingSession tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_atrace_category_prefer_sdk(event_category)
+      .add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace trace = stopSession(tracing_session);
+
+  verifyTrackEvent(trace, event_category, event_name);
+}
+
+TEST_F_WITH_FLAGS(TracingPerfettoTest, traceInstantWithPerfettoAndAtraceConcurrently,
+                  REQUIRES_FLAGS_ENABLED(PERFETTO_SDK_TRACING)) {
+  std::string event_category = "input";
+  std::string event_name = "traceInstantWithPerfettoAndAtraceConcurrently";
+
+  TracingSession perfetto_tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_atrace_category_prefer_sdk(event_category)
+      .add_enabled_category(event_category).Build();
+
+  TracingSession atrace_tracing_session =
+      TracingSession::Builder()
+      .add_atrace_category(event_category)
+      .add_enabled_category(event_category).Build();
+
+  tracing_perfetto::traceInstant(TRACE_CATEGORY_INPUT, event_name.c_str());
+
+  Trace atrace_trace = stopSession(atrace_tracing_session);
+  Trace perfetto_trace = stopSession(perfetto_tracing_session);
+
+  verifyAtraceEvent(atrace_trace, event_name);
+  verifyAtraceEvent(perfetto_trace, event_name);
+}
+}  // namespace tracing_perfetto
diff --git a/libs/tracing_perfetto/tests/utils.cpp b/libs/tracing_perfetto/tests/utils.cpp
index 9c42028..8c4d4a8 100644
--- a/libs/tracing_perfetto/tests/utils.cpp
+++ b/libs/tracing_perfetto/tests/utils.cpp
@@ -26,6 +26,11 @@
 #include "perfetto/public/protos/config/track_event/track_event_config.pzc.h"
 #include "perfetto/public/tracing_session.h"
 
+#include "protos/perfetto/config/ftrace/ftrace_config.pb.h"
+#include "protos/perfetto/config/track_event/track_event_config.pb.h"
+#include "protos/perfetto/config/data_source_config.pb.h"
+#include "protos/perfetto/config/trace_config.pb.h"
+
 namespace perfetto {
 namespace shlib {
 namespace test_utils {
@@ -44,63 +49,54 @@
 }  // namespace
 
 TracingSession TracingSession::Builder::Build() {
-  struct PerfettoPbMsgWriter writer;
-  struct PerfettoHeapBuffer* hb = PerfettoHeapBufferCreate(&writer.writer);
+  perfetto::protos::TraceConfig trace_config;
+  trace_config.add_buffers()->set_size_kb(1024);
 
-  struct perfetto_protos_TraceConfig cfg;
-  PerfettoPbMsgInit(&cfg.msg, &writer);
+  auto* track_event_ds_config = trace_config.add_data_sources()->mutable_config();
+  auto* ftrace_ds_config = trace_config.add_data_sources()->mutable_config();
+
+  track_event_ds_config->set_name("track_event");
+  track_event_ds_config->set_target_buffer(0);
+
+  ftrace_ds_config->set_name("linux.ftrace");
+  ftrace_ds_config->set_target_buffer(0);
 
   {
-    struct perfetto_protos_TraceConfig_BufferConfig buffers;
-    perfetto_protos_TraceConfig_begin_buffers(&cfg, &buffers);
-
-    perfetto_protos_TraceConfig_BufferConfig_set_size_kb(&buffers, 1024);
-
-    perfetto_protos_TraceConfig_end_buffers(&cfg, &buffers);
-  }
-
-  {
-    struct perfetto_protos_TraceConfig_DataSource data_sources;
-    perfetto_protos_TraceConfig_begin_data_sources(&cfg, &data_sources);
-
-    {
-      struct perfetto_protos_DataSourceConfig ds_cfg;
-      perfetto_protos_TraceConfig_DataSource_begin_config(&data_sources,
-                                                          &ds_cfg);
-
-      perfetto_protos_DataSourceConfig_set_cstr_name(&ds_cfg,
-                                                     data_source_name_.c_str());
-      if (!enabled_categories_.empty() && !disabled_categories_.empty()) {
-        perfetto_protos_TrackEventConfig te_cfg;
-        perfetto_protos_DataSourceConfig_begin_track_event_config(&ds_cfg,
-                                                                  &te_cfg);
-        for (const std::string& cat : enabled_categories_) {
-          perfetto_protos_TrackEventConfig_set_enabled_categories(
-              &te_cfg, cat.data(), cat.size());
-        }
-        for (const std::string& cat : disabled_categories_) {
-          perfetto_protos_TrackEventConfig_set_disabled_categories(
-              &te_cfg, cat.data(), cat.size());
-        }
-        perfetto_protos_DataSourceConfig_end_track_event_config(&ds_cfg,
-                                                                &te_cfg);
+    auto* ftrace_config = ftrace_ds_config->mutable_ftrace_config();
+    if (!atrace_categories_.empty()) {
+      ftrace_config->add_ftrace_events("ftrace/print");
+      for (const std::string& cat : atrace_categories_) {
+        ftrace_config->add_atrace_categories(cat);
       }
 
-      perfetto_protos_TraceConfig_DataSource_end_config(&data_sources, &ds_cfg);
+      for (const std::string& cat : atrace_categories_prefer_sdk_) {
+        ftrace_config->add_atrace_categories_prefer_sdk(cat);
+      }
     }
-
-    perfetto_protos_TraceConfig_end_data_sources(&cfg, &data_sources);
   }
-  size_t cfg_size = PerfettoStreamWriterGetWrittenSize(&writer.writer);
-  std::unique_ptr<uint8_t[]> ser(new uint8_t[cfg_size]);
-  PerfettoHeapBufferCopyInto(hb, &writer.writer, ser.get(), cfg_size);
-  PerfettoHeapBufferDestroy(hb, &writer.writer);
+
+  {
+    auto* track_event_config = track_event_ds_config->mutable_track_event_config();
+    if (!enabled_categories_.empty() || !disabled_categories_.empty()) {
+      for (const std::string& cat : enabled_categories_) {
+        track_event_config->add_enabled_categories(cat);
+      }
+
+      for (const std::string& cat : disabled_categories_) {
+        track_event_config->add_disabled_categories(cat);
+      }
+    }
+  }
 
   struct PerfettoTracingSessionImpl* ts =
-      PerfettoTracingSessionCreate(PERFETTO_BACKEND_IN_PROCESS);
+      PerfettoTracingSessionCreate(PERFETTO_BACKEND_SYSTEM);
 
-  PerfettoTracingSessionSetup(ts, ser.get(), cfg_size);
+  std::string trace_config_string;
+  trace_config.SerializeToString(&trace_config_string);
 
+  PerfettoTracingSessionSetup(ts, trace_config_string.data(), trace_config_string.length());
+
+  // Fails to start here
   PerfettoTracingSessionStartBlocking(ts);
 
   return TracingSession::Adopt(ts);
diff --git a/libs/tracing_perfetto/tests/utils.h b/libs/tracing_perfetto/tests/utils.h
index 4353554..8edb414 100644
--- a/libs/tracing_perfetto/tests/utils.h
+++ b/libs/tracing_perfetto/tests/utils.h
@@ -74,10 +74,6 @@
   class Builder {
    public:
     Builder() = default;
-    Builder& set_data_source_name(std::string data_source_name) {
-      data_source_name_ = std::move(data_source_name);
-      return *this;
-    }
     Builder& add_enabled_category(std::string category) {
       enabled_categories_.push_back(std::move(category));
       return *this;
@@ -86,12 +82,21 @@
       disabled_categories_.push_back(std::move(category));
       return *this;
     }
+    Builder& add_atrace_category(std::string category) {
+      atrace_categories_.push_back(std::move(category));
+      return *this;
+    }
+    Builder& add_atrace_category_prefer_sdk(std::string category) {
+      atrace_categories_prefer_sdk_.push_back(std::move(category));
+      return *this;
+    }
     TracingSession Build();
 
    private:
-    std::string data_source_name_;
     std::vector<std::string> enabled_categories_;
     std::vector<std::string> disabled_categories_;
+    std::vector<std::string> atrace_categories_;
+    std::vector<std::string> atrace_categories_prefer_sdk_;
   };
 
   static TracingSession Adopt(struct PerfettoTracingSessionImpl*);
diff --git a/libs/tracing_perfetto/tracing_perfetto.cpp b/libs/tracing_perfetto/tracing_perfetto.cpp
index 6f716ee..c35e078 100644
--- a/libs/tracing_perfetto/tracing_perfetto.cpp
+++ b/libs/tracing_perfetto/tracing_perfetto.cpp
@@ -17,6 +17,7 @@
 #include "tracing_perfetto.h"
 
 #include <cutils/trace.h>
+#include <cstdarg>
 
 #include "perfetto/public/te_category_macros.h"
 #include "trace_categories.h"
@@ -28,116 +29,172 @@
   internal::registerWithPerfetto(test);
 }
 
-Result traceBegin(uint64_t category, const char* name) {
+void traceBegin(uint64_t category, const char* name) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceBegin(*perfettoTeCategory, name);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_begin(category, name);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceBegin(*perfettoTeCategory, name);
   }
 }
 
-Result traceEnd(uint64_t category) {
+void traceFormatBegin(uint64_t category, const char* fmt, ...) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceEnd(*perfettoTeCategory);
-  } else {
+  const bool preferAtrace = internal::shouldPreferAtrace(perfettoTeCategory, category);
+  const bool preferPerfetto = internal::isPerfettoCategoryEnabled(perfettoTeCategory);
+  if (CC_LIKELY(!(preferAtrace || preferPerfetto))) {
+    return;
+  }
+
+  const int BUFFER_SIZE = 256;
+  va_list ap;
+  char buf[BUFFER_SIZE];
+
+  va_start(ap, fmt);
+  vsnprintf(buf, BUFFER_SIZE, fmt, ap);
+  va_end(ap);
+
+
+  if (preferAtrace) {
+    atrace_begin(category, buf);
+  } else if (preferPerfetto) {
+    internal::perfettoTraceBegin(*perfettoTeCategory, buf);
+  }
+}
+
+void traceEnd(uint64_t category) {
+  struct PerfettoTeCategory* perfettoTeCategory =
+      internal::toPerfettoCategory(category);
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_end(category);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceEnd(*perfettoTeCategory);
   }
 }
 
-Result traceAsyncBegin(uint64_t category, const char* name, int32_t cookie) {
+void traceAsyncBegin(uint64_t category, const char* name, int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncBegin(*perfettoTeCategory, name, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_begin(category, name, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncBegin(*perfettoTeCategory, name, cookie);
   }
 }
 
-Result traceAsyncEnd(uint64_t category, const char* name, int32_t cookie) {
+void traceAsyncEnd(uint64_t category, const char* name, int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncEnd(*perfettoTeCategory, name, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_end(category, name, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncEnd(*perfettoTeCategory, name, cookie);
   }
 }
 
-Result traceAsyncBeginForTrack(uint64_t category, const char* name,
+void traceAsyncBeginForTrack(uint64_t category, const char* name,
                                const char* trackName, int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncBeginForTrack(*perfettoTeCategory, name, trackName, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_for_track_begin(category, trackName, name, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncBeginForTrack(*perfettoTeCategory, name, trackName, cookie);
   }
 }
 
-Result traceAsyncEndForTrack(uint64_t category, const char* trackName,
+void traceAsyncEndForTrack(uint64_t category, const char* trackName,
                              int32_t cookie) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceAsyncEndForTrack(*perfettoTeCategory, trackName, cookie);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_async_for_track_end(category, trackName, cookie);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceAsyncEndForTrack(*perfettoTeCategory, trackName, cookie);
   }
 }
 
-Result traceInstant(uint64_t category, const char* name) {
+void traceInstant(uint64_t category, const char* name) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceInstant(*perfettoTeCategory, name);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_instant(category, name);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceInstant(*perfettoTeCategory, name);
   }
 }
 
-Result traceInstantForTrack(uint64_t category, const char* trackName,
+void traceFormatInstant(uint64_t category, const char* fmt, ...) {
+  struct PerfettoTeCategory* perfettoTeCategory =
+      internal::toPerfettoCategory(category);
+  const bool preferAtrace = internal::shouldPreferAtrace(perfettoTeCategory, category);
+  const bool preferPerfetto = internal::isPerfettoCategoryEnabled(perfettoTeCategory);
+  if (CC_LIKELY(!(preferAtrace || preferPerfetto))) {
+    return;
+  }
+
+  const int BUFFER_SIZE = 256;
+  va_list ap;
+  char buf[BUFFER_SIZE];
+
+  va_start(ap, fmt);
+  vsnprintf(buf, BUFFER_SIZE, fmt, ap);
+  va_end(ap);
+
+  if (preferAtrace) {
+    atrace_instant(category, buf);
+  } else if (preferPerfetto) {
+    internal::perfettoTraceInstant(*perfettoTeCategory, buf);
+  }
+}
+
+void traceInstantForTrack(uint64_t category, const char* trackName,
                             const char* name) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceInstantForTrack(*perfettoTeCategory, trackName, name);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_instant_for_track(category, trackName, name);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceInstantForTrack(*perfettoTeCategory, trackName, name);
   }
 }
 
-Result traceCounter(uint64_t category, const char* name, int64_t value) {
+void traceCounter(uint64_t category, const char* name, int64_t value) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return internal::perfettoTraceCounter(*perfettoTeCategory, name, value);
-  } else {
+
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
     atrace_int64(category, name, value);
-    return Result::SUCCESS;
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceCounter(*perfettoTeCategory, name, value);
+  }
+}
+
+void traceCounter32(uint64_t category, const char* name, int32_t value) {
+  struct PerfettoTeCategory* perfettoTeCategory = internal::toPerfettoCategory(category);
+  if (internal::shouldPreferAtrace(perfettoTeCategory, category)) {
+    atrace_int(category, name, value);
+  } else if (internal::isPerfettoCategoryEnabled(perfettoTeCategory)) {
+    internal::perfettoTraceCounter(*perfettoTeCategory, name,
+                                          static_cast<int64_t>(value));
   }
 }
 
 bool isTagEnabled(uint64_t category) {
   struct PerfettoTeCategory* perfettoTeCategory =
       internal::toPerfettoCategory(category);
-  if (perfettoTeCategory != nullptr) {
-    return true;
-  } else {
-    return (atrace_get_enabled_tags() & category) != 0;
-  }
+  return internal::isPerfettoCategoryEnabled(perfettoTeCategory)
+      || atrace_is_tag_enabled(category);
 }
 
 }  // namespace tracing_perfetto
diff --git a/libs/tracing_perfetto/tracing_perfetto_internal.cpp b/libs/tracing_perfetto/tracing_perfetto_internal.cpp
index 758ace6..9a0042a 100644
--- a/libs/tracing_perfetto/tracing_perfetto_internal.cpp
+++ b/libs/tracing_perfetto/tracing_perfetto_internal.cpp
@@ -44,13 +44,13 @@
   C(rro, "rro", "RRO category")                                  \
   C(thermal, "thermal", "Thermal category")
 
-#include "tracing_perfetto_internal.h"
-
-#include <inttypes.h>
-
+#include <atomic>
 #include <mutex>
 
 #include <android_os.h>
+#include <android-base/properties.h>
+#include <cutils/trace.h>
+#include <inttypes.h>
 
 #include "perfetto/public/compiler.h"
 #include "perfetto/public/producer.h"
@@ -58,19 +58,42 @@
 #include "perfetto/public/te_macros.h"
 #include "perfetto/public/track_event.h"
 #include "trace_categories.h"
-#include "trace_result.h"
+#include "tracing_perfetto_internal.h"
+
+#ifdef __BIONIC__
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+#endif
 
 namespace tracing_perfetto {
 
 namespace internal {
 
 namespace {
-
 PERFETTO_TE_CATEGORIES_DECLARE(FRAMEWORK_CATEGORIES);
 
 PERFETTO_TE_CATEGORIES_DEFINE(FRAMEWORK_CATEGORIES);
 
-std::atomic_bool is_perfetto_registered = false;
+static constexpr char kPreferFlagProperty[] = "debug.atrace.prefer_sdk";
+static std::atomic<const prop_info*> prefer_property_info = nullptr;
+static std::atomic_uint32_t last_prefer_seq_num = 0;
+static std::atomic_uint64_t prefer_flags = 0;
+
+static const prop_info* system_property_find(const char* name [[maybe_unused]]) {
+  #ifdef __BIONIC__
+  return __system_property_find(name);
+  #endif
+
+  return nullptr;
+}
+
+static uint32_t system_property_serial(const prop_info* pi [[maybe_unused]]) {
+  #ifdef __BIONIC__
+  return __system_property_serial(pi);
+  #endif
+
+  return last_prefer_seq_num;
+}
 
 struct PerfettoTeCategory* toCategory(uint64_t inCategory) {
   switch (inCategory) {
@@ -137,8 +160,60 @@
 
 }  // namespace
 
-bool isPerfettoRegistered() {
-  return is_perfetto_registered;
+bool isPerfettoCategoryEnabled(PerfettoTeCategory* category) {
+  return category != nullptr;
+}
+
+/**
+ * Updates the cached |prefer_flags|.
+ *
+ * We cache the prefer_flags because reading it on every trace event is expensive.
+ * The cache is invalidated when a sys_prop sequence number changes.
+ */
+void updatePreferFlags() {
+  if (!prefer_property_info.load(std::memory_order_acquire)) {
+    auto* new_prefer_property_info = system_property_find(kPreferFlagProperty);
+    prefer_flags.store(android::base::GetIntProperty(kPreferFlagProperty, 0),
+                       std::memory_order_relaxed);
+
+    if (!new_prefer_property_info) {
+      // This should never happen. If it does, we fail gracefully and end up reading the property
+      // traced event.
+      return;
+    }
+
+    last_prefer_seq_num = system_property_serial(new_prefer_property_info);
+    prefer_property_info.store(new_prefer_property_info, std::memory_order_release);
+  }
+
+  uint32_t prefer_seq_num =  system_property_serial(prefer_property_info);
+  if (prefer_seq_num != last_prefer_seq_num.load(std::memory_order_acquire)) {
+    prefer_flags.store(android::base::GetIntProperty(kPreferFlagProperty, 0),
+                       std::memory_order_relaxed);
+    last_prefer_seq_num.store(prefer_seq_num, std::memory_order_release);
+  }
+}
+
+bool shouldPreferAtrace(PerfettoTeCategory *perfettoCategory, uint64_t atraceCategory) {
+  // There are 3 cases:
+  // 1. Atrace is not enabled.
+  if (!atrace_is_tag_enabled(atraceCategory)) {
+    return false;
+  }
+
+  // 2. Atrace is enabled but perfetto is not enabled.
+  if (!isPerfettoCategoryEnabled(perfettoCategory)) {
+    return true;
+  }
+
+  // Update prefer_flags before checking it below
+  updatePreferFlags();
+
+  // 3. Atrace and perfetto are enabled.
+  // Even though this category is enabled for track events, the config mandates that we downgrade
+  // it to atrace if the same atrace category is currently enabled. This prevents missing the
+  // event from a concurrent session that needs the same category in atrace.
+  return (atraceCategory & prefer_flags.load(std::memory_order_relaxed)) == 0;
 }
 
 struct PerfettoTeCategory* toPerfettoCategory(uint64_t category) {
@@ -148,7 +223,7 @@
   }
 
   bool enabled = PERFETTO_UNLIKELY(PERFETTO_ATOMIC_LOAD_EXPLICIT(
-      (*perfettoCategory).enabled, PERFETTO_MEMORY_ORDER_RELAXED));
+       (*perfettoCategory).enabled, PERFETTO_MEMORY_ORDER_RELAXED));
   return enabled ? perfettoCategory : nullptr;
 }
 
@@ -164,70 +239,57 @@
     PerfettoProducerInit(args);
     PerfettoTeInit();
     PERFETTO_TE_REGISTER_CATEGORIES(FRAMEWORK_CATEGORIES);
-    is_perfetto_registered = true;
   });
 }
 
-Result perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name) {
+void perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name) {
   PERFETTO_TE(category, PERFETTO_TE_SLICE_BEGIN(name));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceEnd(const struct PerfettoTeCategory& category) {
+void perfettoTraceEnd(const struct PerfettoTeCategory& category) {
   PERFETTO_TE(category, PERFETTO_TE_SLICE_END());
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
                                        const char* trackName, uint64_t cookie) {
   PERFETTO_TE(
       category, PERFETTO_TE_SLICE_BEGIN(name),
       PERFETTO_TE_NAMED_TRACK(trackName, cookie, PerfettoTeProcessTrackUuid()));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
                                      const char* trackName, uint64_t cookie) {
   PERFETTO_TE(
       category, PERFETTO_TE_SLICE_END(),
       PERFETTO_TE_NAMED_TRACK(trackName, cookie, PerfettoTeProcessTrackUuid()));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
                                uint64_t cookie) {
-  return perfettoTraceAsyncBeginForTrack(category, name, name, cookie);
+  perfettoTraceAsyncBeginForTrack(category, name, name, cookie);
 }
 
-Result perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
                              uint64_t cookie) {
-  return perfettoTraceAsyncEndForTrack(category, name, cookie);
+  perfettoTraceAsyncEndForTrack(category, name, cookie);
 }
 
-Result perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name) {
+void perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name) {
   PERFETTO_TE(category, PERFETTO_TE_INSTANT(name));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
                                     const char* trackName, const char* name) {
   PERFETTO_TE(
       category, PERFETTO_TE_INSTANT(name),
       PERFETTO_TE_NAMED_TRACK(trackName, 1, PerfettoTeProcessTrackUuid()));
-  return Result::SUCCESS;
 }
 
-Result perfettoTraceCounter(const struct PerfettoTeCategory& category,
+void perfettoTraceCounter(const struct PerfettoTeCategory& category,
                             [[maybe_unused]] const char* name, int64_t value) {
   PERFETTO_TE(category, PERFETTO_TE_COUNTER(),
               PERFETTO_TE_INT_COUNTER(value));
-  return Result::SUCCESS;
 }
-
-uint64_t getDefaultCategories() {
-  return TRACE_CATEGORIES;
-}
-
 }  // namespace internal
 
 }  // namespace tracing_perfetto
diff --git a/libs/tracing_perfetto/tracing_perfetto_internal.h b/libs/tracing_perfetto/tracing_perfetto_internal.h
index 79e4b8f..3e1ac2a 100644
--- a/libs/tracing_perfetto/tracing_perfetto_internal.h
+++ b/libs/tracing_perfetto/tracing_perfetto_internal.h
@@ -19,7 +19,6 @@
 
 #include <stdint.h>
 
-#include "include/trace_result.h"
 #include "perfetto/public/te_category_macros.h"
 
 namespace tracing_perfetto {
@@ -32,31 +31,33 @@
 
 void registerWithPerfetto(bool test = false);
 
-Result perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name);
+void perfettoTraceBegin(const struct PerfettoTeCategory& category, const char* name);
 
-Result perfettoTraceEnd(const struct PerfettoTeCategory& category);
+void perfettoTraceEnd(const struct PerfettoTeCategory& category);
 
-Result perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBegin(const struct PerfettoTeCategory& category, const char* name,
                                uint64_t cookie);
 
-Result perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncEnd(const struct PerfettoTeCategory& category, const char* name,
                              uint64_t cookie);
 
-Result perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceAsyncBeginForTrack(const struct PerfettoTeCategory& category, const char* name,
                                        const char* trackName, uint64_t cookie);
 
-Result perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceAsyncEndForTrack(const struct PerfettoTeCategory& category,
                                      const char* trackName, uint64_t cookie);
 
-Result perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name);
+void perfettoTraceInstant(const struct PerfettoTeCategory& category, const char* name);
 
-Result perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
+void perfettoTraceInstantForTrack(const struct PerfettoTeCategory& category,
                                     const char* trackName, const char* name);
 
-Result perfettoTraceCounter(const struct PerfettoTeCategory& category, const char* name,
+void perfettoTraceCounter(const struct PerfettoTeCategory& category, const char* name,
                             int64_t value);
 
-uint64_t getDefaultCategories();
+bool isPerfettoCategoryEnabled(PerfettoTeCategory *perfettoTeCategory);
+
+bool shouldPreferAtrace(PerfettoTeCategory *perfettoTeCategory, uint64_t category);
 
 }  // namespace internal
 
diff --git a/libs/ui/Transform.cpp b/libs/ui/Transform.cpp
index 42dd85e..23249fa 100644
--- a/libs/ui/Transform.cpp
+++ b/libs/ui/Transform.cpp
@@ -110,10 +110,12 @@
     return mMatrix[i];
 }
 
+// x translate
 float Transform::tx() const {
     return mMatrix[2][0];
 }
 
+// y translate
 float Transform::ty() const {
     return mMatrix[2][1];
 }
@@ -167,11 +169,15 @@
     }
 }
 
-void Transform::set(float a, float b, float c, float d) {
+// x and y are the coordinates in the destination (i.e. the screen)
+// s and t are the coordinates in the source (i.e. the texture)
+// d means derivative
+// dsdx means ds/dx derivative of s with respect to x, etc.
+void Transform::set(float dsdx, float dtdy, float dtdx, float dsdy) {
     mat33& M(mMatrix);
-    M[0][0] = a;    M[1][0] = b;
-    M[0][1] = c;    M[1][1] = d;
-    M[0][2] = 0;    M[1][2] = 0;
+    M[0][0] = dsdx;    M[1][0] = dtdy;
+    M[0][1] = dtdx;    M[1][1] = dsdy;
+    M[0][2] = 0;       M[1][2] = 0;
     mType = UNKNOWN_TYPE;
 }
 
diff --git a/libs/ui/include/ui/EdgeExtensionEffect.h b/libs/ui/include/ui/EdgeExtensionEffect.h
new file mode 100644
index 0000000..02126b1
--- /dev/null
+++ b/libs/ui/include/ui/EdgeExtensionEffect.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+/**
+ * Stores the edge that will be extended
+ */
+namespace android {
+
+enum CanonicalDirections { NONE = 0, LEFT = 1, RIGHT = 2, TOP = 4, BOTTOM = 8 };
+
+inline std::string to_string(CanonicalDirections direction) {
+    switch (direction) {
+        case LEFT:
+            return "LEFT";
+        case RIGHT:
+            return "RIGHT";
+        case TOP:
+            return "TOP";
+        case BOTTOM:
+            return "BOTTOM";
+        case NONE:
+            return "NONE";
+    }
+}
+
+struct EdgeExtensionEffect {
+    EdgeExtensionEffect(bool left, bool right, bool top, bool bottom) {
+        extensionEdges = NONE;
+        if (left) {
+            extensionEdges |= LEFT;
+        }
+        if (right) {
+            extensionEdges |= RIGHT;
+        }
+        if (top) {
+            extensionEdges |= TOP;
+        }
+        if (bottom) {
+            extensionEdges |= BOTTOM;
+        }
+    }
+
+    EdgeExtensionEffect() { EdgeExtensionEffect(false, false, false, false); }
+
+    bool extendsEdge(CanonicalDirections edge) const { return extensionEdges & edge; }
+
+    bool hasEffect() const { return extensionEdges != NONE; };
+
+    void reset() { extensionEdges = NONE; }
+
+    bool operator==(const EdgeExtensionEffect& other) const {
+        return extensionEdges == other.extensionEdges;
+    }
+
+    bool operator!=(const EdgeExtensionEffect& other) const { return !(*this == other); }
+
+private:
+    int extensionEdges;
+};
+
+inline std::string to_string(const EdgeExtensionEffect& effect) {
+    std::string s = "EdgeExtensionEffect={edges=[";
+    if (effect.hasEffect()) {
+        for (CanonicalDirections edge : {LEFT, RIGHT, TOP, BOTTOM}) {
+            if (effect.extendsEdge(edge)) {
+                s += to_string(edge) + ", ";
+            }
+        }
+    } else {
+        s += to_string(NONE);
+    }
+    s += "]}";
+    return s;
+}
+
+inline std::ostream& operator<<(std::ostream& os, const EdgeExtensionEffect effect) {
+    os << to_string(effect);
+    return os;
+}
+} // namespace android
diff --git a/libs/vibrator/Android.bp b/libs/vibrator/Android.bp
index 2af51a7..d3b3a73 100644
--- a/libs/vibrator/Android.bp
+++ b/libs/vibrator/Android.bp
@@ -24,6 +24,10 @@
 cc_defaults {
     name: "libvibrator_defaults",
 
+    defaults: [
+        "aconfig_lib_cc_shared_link.defaults",
+    ],
+
     cflags: [
         "-Wall",
         "-Werror",
@@ -50,9 +54,11 @@
         "libbinder",
         "liblog",
         "libutils",
+        "server_configurable_flags",
     ],
 
     whole_static_libs: [
+        "android.os.vibrator.flags-aconfig-cc",
         "libvibratorutils",
     ],
 
@@ -79,8 +85,14 @@
     vendor_available: true,
     double_loadable: true,
 
+    static_libs: [
+        "android.os.vibrator.flags-aconfig-cc",
+    ],
+
     shared_libs: [
+        "liblog",
         "libutils",
+        "server_configurable_flags",
     ],
 
     srcs: [
@@ -89,6 +101,7 @@
 
     visibility: [
         "//frameworks/native/libs/vibrator",
+        "//frameworks/native/libs/vibrator/tests",
         "//frameworks/av/media/libeffects/hapticgenerator",
     ],
 }
diff --git a/libs/vibrator/ExternalVibration.cpp b/libs/vibrator/ExternalVibration.cpp
index c97e496..cae2de2 100644
--- a/libs/vibrator/ExternalVibration.cpp
+++ b/libs/vibrator/ExternalVibration.cpp
@@ -93,8 +93,8 @@
                   externalVibrationScale.scaleLevel);
     }
 
-    return {/*level=*/scaleLevel, /*adaptiveScaleFactor=*/
-                      externalVibrationScale.adaptiveHapticsScale};
+    return os::HapticScale(scaleLevel, externalVibrationScale.scaleFactor,
+                           externalVibrationScale.adaptiveHapticsScale);
 }
 
 } // namespace os
diff --git a/libs/vibrator/ExternalVibrationUtils.cpp b/libs/vibrator/ExternalVibrationUtils.cpp
index 761ac1b..54afb71 100644
--- a/libs/vibrator/ExternalVibrationUtils.cpp
+++ b/libs/vibrator/ExternalVibrationUtils.cpp
@@ -13,10 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#define LOG_TAG "ExternalVibrationUtils"
+
 #include <cstring>
 
+#include <android_os_vibrator.h>
+
+#include <algorithm>
 #include <math.h>
 
+#include <log/log.h>
 #include <vibrator/ExternalVibrationUtils.h>
 
 namespace android::os {
@@ -25,8 +31,10 @@
 static constexpr float HAPTIC_SCALE_VERY_LOW_RATIO = 2.0f / 3.0f;
 static constexpr float HAPTIC_SCALE_LOW_RATIO = 3.0f / 4.0f;
 static constexpr float HAPTIC_MAX_AMPLITUDE_FLOAT = 1.0f;
+static constexpr float SCALE_GAMMA = 0.65f; // Same as VibrationEffect.SCALE_GAMMA
+static constexpr float SCALE_LEVEL_GAIN = 1.4f; // Same as VibrationConfig.DEFAULT_SCALE_LEVEL_GAIN
 
-float getHapticScaleGamma(HapticLevel level) {
+float getOldHapticScaleGamma(HapticLevel level) {
     switch (level) {
     case HapticLevel::VERY_LOW:
         return 2.0f;
@@ -41,7 +49,7 @@
     }
 }
 
-float getHapticMaxAmplitudeRatio(HapticLevel level) {
+float getOldHapticMaxAmplitudeRatio(HapticLevel level) {
     switch (level) {
     case HapticLevel::VERY_LOW:
         return HAPTIC_SCALE_VERY_LOW_RATIO;
@@ -56,6 +64,85 @@
     }
 }
 
+/* Same as VibrationScaler.getScaleFactor */
+float getHapticScaleFactor(HapticScale scale) {
+    if (android_os_vibrator_haptics_scale_v2_enabled()) {
+        if (scale.getScaleFactor() >= 0) {
+            // ExternalVibratorService provided the scale factor, use it.
+            return scale.getScaleFactor();
+        }
+
+        HapticLevel level = scale.getLevel();
+        switch (level) {
+            case HapticLevel::MUTE:
+                return 0.0f;
+            case HapticLevel::NONE:
+                return 1.0f;
+            default:
+                float scaleFactor = powf(SCALE_LEVEL_GAIN, static_cast<int32_t>(level));
+                if (scaleFactor <= 0) {
+                    ALOGE("Invalid scale factor %.2f for level %d, using fallback to 1.0",
+                          scaleFactor, static_cast<int32_t>(level));
+                    scaleFactor = 1.0f;
+                }
+                return scaleFactor;
+        }
+    }
+    // Same as VibrationScaler.SCALE_FACTOR_*
+    switch (scale.getLevel()) {
+        case HapticLevel::MUTE:
+            return 0.0f;
+        case HapticLevel::VERY_LOW:
+            return 0.6f;
+        case HapticLevel::LOW:
+            return 0.8f;
+        case HapticLevel::HIGH:
+            return 1.2f;
+        case HapticLevel::VERY_HIGH:
+            return 1.4f;
+        default:
+            return 1.0f;
+    }
+}
+
+float applyOldHapticScale(float value, float gamma, float maxAmplitudeRatio) {
+    float sign = value >= 0 ? 1.0 : -1.0;
+    return powf(fabsf(value / HAPTIC_MAX_AMPLITUDE_FLOAT), gamma)
+                * maxAmplitudeRatio * HAPTIC_MAX_AMPLITUDE_FLOAT * sign;
+}
+
+float applyNewHapticScale(float value, float scaleFactor) {
+    if (android_os_vibrator_haptics_scale_v2_enabled()) {
+        if (scaleFactor <= 1 || value == 0) {
+            return value * scaleFactor;
+        } else {
+            // Using S * x / (1 + (S - 1) * x^2) as the scale up function to converge to 1.0.
+            return (value * scaleFactor) / (1 + (scaleFactor - 1) * value * value);
+        }
+    }
+    float scale = powf(scaleFactor, 1.0f / SCALE_GAMMA);
+    if (scaleFactor <= 1) {
+        // Scale down is simply a gamma corrected application of scaleFactor to the intensity.
+        // Scale up requires a different curve to ensure the intensity will not become > 1.
+        return value * scale;
+    }
+
+    float sign = value >= 0 ? 1.0f : -1.0f;
+    float extraScale = powf(scaleFactor, 4.0f - scaleFactor);
+    float x = fabsf(value) * scale * extraScale;
+    float maxX = scale * extraScale; // scaled x for intensity == 1
+
+    float expX = expf(x);
+    float expMaxX = expf(maxX);
+
+    // Using f = tanh as the scale up function so the max value will converge.
+    // a = 1/f(maxX), used to scale f so that a*f(maxX) = 1 (the value will converge to 1).
+    float a = (expMaxX + 1.0f) / (expMaxX - 1.0f);
+    float fx = (expX - 1.0f) / (expX + 1.0f);
+
+    return sign * std::clamp(a * fx, 0.0f, 1.0f);
+}
+
 void applyHapticScale(float* buffer, size_t length, HapticScale scale) {
     if (scale.isScaleMute()) {
         memset(buffer, 0, length * sizeof(float));
@@ -65,15 +152,19 @@
         return;
     }
     HapticLevel hapticLevel = scale.getLevel();
+    float scaleFactor = getHapticScaleFactor(scale);
     float adaptiveScaleFactor = scale.getAdaptiveScaleFactor();
-    float gamma = getHapticScaleGamma(hapticLevel);
-    float maxAmplitudeRatio = getHapticMaxAmplitudeRatio(hapticLevel);
+    float oldGamma = getOldHapticScaleGamma(hapticLevel);
+    float oldMaxAmplitudeRatio = getOldHapticMaxAmplitudeRatio(hapticLevel);
 
     for (size_t i = 0; i < length; i++) {
         if (hapticLevel != HapticLevel::NONE) {
-            float sign = buffer[i] >= 0 ? 1.0 : -1.0;
-            buffer[i] = powf(fabsf(buffer[i] / HAPTIC_MAX_AMPLITUDE_FLOAT), gamma)
-                        * maxAmplitudeRatio * HAPTIC_MAX_AMPLITUDE_FLOAT * sign;
+            if (android_os_vibrator_fix_audio_coupled_haptics_scaling() ||
+                android_os_vibrator_haptics_scale_v2_enabled()) {
+                buffer[i] = applyNewHapticScale(buffer[i], scaleFactor);
+            } else {
+                buffer[i] = applyOldHapticScale(buffer[i], oldGamma, oldMaxAmplitudeRatio);
+            }
         }
 
         if (adaptiveScaleFactor != 1.0f) {
diff --git a/libs/vibrator/TEST_MAPPING b/libs/vibrator/TEST_MAPPING
new file mode 100644
index 0000000..d782b43
--- /dev/null
+++ b/libs/vibrator/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "postsubmit": [
+    {
+      "name": "libvibrator_test"
+    }
+  ]
+}
diff --git a/libs/vibrator/include/vibrator/ExternalVibrationUtils.h b/libs/vibrator/include/vibrator/ExternalVibrationUtils.h
index d9a2b81..322a2ac 100644
--- a/libs/vibrator/include/vibrator/ExternalVibrationUtils.h
+++ b/libs/vibrator/include/vibrator/ExternalVibrationUtils.h
@@ -17,9 +17,13 @@
 #ifndef ANDROID_EXTERNAL_VIBRATION_UTILS_H
 #define ANDROID_EXTERNAL_VIBRATION_UTILS_H
 
+#include <cstring>
+#include <sstream>
+#include <string>
+
 namespace android::os {
 
-enum class HapticLevel {
+enum class HapticLevel : int32_t {
     MUTE = -100,
     VERY_LOW = -2,
     LOW = -1,
@@ -31,32 +35,42 @@
 class HapticScale {
 private:
 HapticLevel mLevel = HapticLevel::NONE;
+float mScaleFactor = -1.0f; // undefined, use haptic level to define scale factor
 float mAdaptiveScaleFactor = 1.0f;
 
 public:
-constexpr HapticScale(HapticLevel level, float adaptiveScaleFactor)
-    : mLevel(level), mAdaptiveScaleFactor(adaptiveScaleFactor) {}
-constexpr HapticScale(HapticLevel level) : mLevel(level) {}
-constexpr HapticScale() {}
+    explicit HapticScale(HapticLevel level, float scaleFactor, float adaptiveScaleFactor)
+          : mLevel(level), mScaleFactor(scaleFactor), mAdaptiveScaleFactor(adaptiveScaleFactor) {}
+    explicit HapticScale(HapticLevel level) : mLevel(level) {}
+    constexpr HapticScale() {}
 
-HapticLevel getLevel() const { return mLevel; }
-float getAdaptiveScaleFactor() const { return mAdaptiveScaleFactor; }
+    HapticLevel getLevel() const { return mLevel; }
+    float getScaleFactor() const { return mScaleFactor; }
+    float getAdaptiveScaleFactor() const { return mAdaptiveScaleFactor; }
 
-bool operator==(const HapticScale& other) const {
-    return mLevel == other.mLevel && mAdaptiveScaleFactor == other.mAdaptiveScaleFactor;
-}
+    bool operator==(const HapticScale& other) const {
+        return mLevel == other.mLevel && mScaleFactor == other.mScaleFactor &&
+                mAdaptiveScaleFactor == other.mAdaptiveScaleFactor;
+    }
 
 bool isScaleNone() const {
-    return mLevel == HapticLevel::NONE && mAdaptiveScaleFactor == 1.0f;
+    return (mLevel == HapticLevel::NONE || mScaleFactor == 1.0f) && mAdaptiveScaleFactor == 1.0f;
 }
 
-bool isScaleMute() const {
-    return mLevel == HapticLevel::MUTE;
+bool isScaleMute() const { return mLevel == HapticLevel::MUTE || mScaleFactor == 0; }
+
+std::string toString() const {
+    std::ostringstream os;
+    os << "HapticScale { level: " << static_cast<int>(mLevel);
+    os << ", scaleFactor: " << mScaleFactor;
+    os << ", adaptiveScaleFactor: " << mAdaptiveScaleFactor;
+    os << "}";
+    return os.str();
 }
 
-static HapticScale mute() {
-    return {/*level=*/os::HapticLevel::MUTE};
-}
+static HapticScale mute() { return os::HapticScale(os::HapticLevel::MUTE); }
+
+static HapticScale none() { return os::HapticScale(os::HapticLevel::NONE); }
 };
 
 bool isValidHapticScale(HapticScale scale);
diff --git a/libs/vibrator/tests/Android.bp b/libs/vibrator/tests/Android.bp
new file mode 100644
index 0000000..2921a62
--- /dev/null
+++ b/libs/vibrator/tests/Android.bp
@@ -0,0 +1,53 @@
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package {
+    default_team: "trendy_team_haptics_framework",
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
+cc_test {
+    name: "libvibrator_test",
+    test_suites: ["general-tests"],
+    defaults: [
+        "aconfig_lib_cc_shared_link.defaults",
+    ],
+    srcs: [
+        "ExternalVibrationTest.cpp",
+        "ExternalVibrationUtilsTest.cpp",
+    ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wextra",
+    ],
+    static_libs: [
+        "android.os.vibrator.flags-aconfig-cc",
+        "libflagtest",
+        "libgtest",
+        "liblog",
+        "libvibrator",
+        "libvibratorutils",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "libutils",
+        "server_configurable_flags",
+    ],
+}
diff --git a/libs/vibrator/tests/ExternalVibrationTest.cpp b/libs/vibrator/tests/ExternalVibrationTest.cpp
new file mode 100644
index 0000000..4133836
--- /dev/null
+++ b/libs/vibrator/tests/ExternalVibrationTest.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *            http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/Parcel.h>
+#include <gtest/gtest.h>
+#include <vibrator/ExternalVibration.h>
+
+using namespace android;
+using namespace testing;
+
+using HapticLevel = os::HapticLevel;
+using ScaleLevel = os::ExternalVibrationScale::ScaleLevel;
+
+class TestVibrationController : public os::IExternalVibrationController {
+public:
+    explicit TestVibrationController() {}
+    IBinder *onAsBinder() override { return nullptr; }
+    binder::Status mute(/*out*/ bool *ret) override {
+        *ret = false;
+        return binder::Status::ok();
+    };
+    binder::Status unmute(/*out*/ bool *ret) override {
+        *ret = false;
+        return binder::Status::ok();
+    };
+};
+
+class ExternalVibrationTest : public Test {
+protected:
+    HapticLevel toHapticLevel(ScaleLevel level) {
+        os::ExternalVibrationScale externalVibrationScale;
+        externalVibrationScale.scaleLevel = level;
+        os::HapticScale hapticScale =
+                os::ExternalVibration::externalVibrationScaleToHapticScale(externalVibrationScale);
+        return hapticScale.getLevel();
+    }
+};
+
+TEST_F(ExternalVibrationTest, TestReadAndWriteToParcel) {
+    int32_t uid = 1;
+    std::string pkg("package.name");
+    audio_attributes_t originalAttrs;
+    originalAttrs.content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+    originalAttrs.usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
+    originalAttrs.source = AUDIO_SOURCE_VOICE_COMMUNICATION;
+    originalAttrs.flags = AUDIO_FLAG_BYPASS_MUTE;
+
+    sp<TestVibrationController> vibrationController = new TestVibrationController();
+    ASSERT_NE(vibrationController, nullptr);
+
+    sp<os::ExternalVibration> original =
+            new os::ExternalVibration(uid, pkg, originalAttrs, vibrationController);
+    ASSERT_NE(original, nullptr);
+
+    EXPECT_EQ(original->getUid(), uid);
+    EXPECT_EQ(original->getPackage(), pkg);
+    EXPECT_EQ(original->getAudioAttributes().content_type, originalAttrs.content_type);
+    EXPECT_EQ(original->getAudioAttributes().usage, originalAttrs.usage);
+    EXPECT_EQ(original->getAudioAttributes().source, originalAttrs.source);
+    EXPECT_EQ(original->getAudioAttributes().flags, originalAttrs.flags);
+    EXPECT_EQ(original->getController(), vibrationController);
+
+    audio_attributes_t defaultAttrs;
+    defaultAttrs.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
+    defaultAttrs.usage = AUDIO_USAGE_UNKNOWN;
+    defaultAttrs.source = AUDIO_SOURCE_DEFAULT;
+    defaultAttrs.flags = AUDIO_FLAG_NONE;
+
+    sp<os::ExternalVibration> parceled =
+            new os::ExternalVibration(0, std::string(""), defaultAttrs, nullptr);
+    ASSERT_NE(parceled, nullptr);
+
+    Parcel parcel;
+    original->writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    parceled->readFromParcel(&parcel);
+
+    EXPECT_EQ(parceled->getUid(), uid);
+    EXPECT_EQ(parceled->getPackage(), pkg);
+    EXPECT_EQ(parceled->getAudioAttributes().content_type, originalAttrs.content_type);
+    EXPECT_EQ(parceled->getAudioAttributes().usage, originalAttrs.usage);
+    EXPECT_EQ(parceled->getAudioAttributes().source, originalAttrs.source);
+    EXPECT_EQ(parceled->getAudioAttributes().flags, originalAttrs.flags);
+    // TestVibrationController does not implement onAsBinder, skip controller parcel in this test.
+}
+
+TEST_F(ExternalVibrationTest, TestExternalVibrationScaleToHapticScale) {
+    os::ExternalVibrationScale externalVibrationScale;
+    externalVibrationScale.scaleLevel = ScaleLevel::SCALE_HIGH;
+    externalVibrationScale.scaleFactor = 0.5f;
+    externalVibrationScale.adaptiveHapticsScale = 0.8f;
+
+    os::HapticScale hapticScale =
+            os::ExternalVibration::externalVibrationScaleToHapticScale(externalVibrationScale);
+
+    // Check scale factors are forwarded.
+    EXPECT_EQ(hapticScale.getLevel(), HapticLevel::HIGH);
+    EXPECT_EQ(hapticScale.getScaleFactor(), 0.5f);
+    EXPECT_EQ(hapticScale.getAdaptiveScaleFactor(), 0.8f);
+
+    // Check conversion for all levels.
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_MUTE), HapticLevel::MUTE);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_VERY_LOW), HapticLevel::VERY_LOW);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_LOW), HapticLevel::LOW);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_NONE), HapticLevel::NONE);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_HIGH), HapticLevel::HIGH);
+    EXPECT_EQ(toHapticLevel(ScaleLevel::SCALE_VERY_HIGH), HapticLevel::VERY_HIGH);
+}
diff --git a/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp b/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp
new file mode 100644
index 0000000..7adc9c3
--- /dev/null
+++ b/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp
@@ -0,0 +1,327 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *            http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android_os_vibrator.h>
+#include <flag_macros.h>
+#include <gtest/gtest.h>
+#include <vibrator/ExternalVibrationUtils.h>
+
+#include "test_utils.h"
+
+#define FLAG_NS android::os::vibrator
+
+using namespace android;
+using namespace testing;
+
+using HapticScale = os::HapticScale;
+using HapticLevel = os::HapticLevel;
+
+static constexpr float TEST_TOLERANCE = 1e-2f;
+static constexpr size_t TEST_BUFFER_LENGTH = 4;
+static float TEST_BUFFER[TEST_BUFFER_LENGTH] = { 1, -1, 0.5f, -0.2f };
+
+class ExternalVibrationUtilsTest : public Test {
+public:
+    void SetUp() override {
+        std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(mBuffer));
+    }
+
+protected:
+    void scaleBuffer(HapticLevel hapticLevel) {
+        scaleBuffer(HapticScale(hapticLevel));
+    }
+
+    void scaleBuffer(HapticLevel hapticLevel, float adaptiveScaleFactor) {
+        scaleBuffer(hapticLevel, adaptiveScaleFactor, 0 /* limit */);
+    }
+
+    void scaleBuffer(HapticLevel hapticLevel, float adaptiveScaleFactor, float limit) {
+        scaleBuffer(HapticScale(hapticLevel, -1 /* scaleFactor */, adaptiveScaleFactor), limit);
+    }
+
+    void scaleBuffer(HapticScale hapticScale) {
+        scaleBuffer(hapticScale, 0 /* limit */);
+    }
+
+    void scaleBuffer(HapticScale hapticScale, float limit) {
+        std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(mBuffer));
+        os::scaleHapticData(&mBuffer[0], TEST_BUFFER_LENGTH, hapticScale, limit);
+    }
+
+    float mBuffer[TEST_BUFFER_LENGTH];
+};
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestLegacyScaleMute,
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling),
+                                          ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expected), std::end(expected), 0);
+
+    scaleBuffer(HapticLevel::MUTE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestFixedScaleMute,
+                  REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling)),
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expected), std::end(expected), 0);
+
+    scaleBuffer(HapticLevel::MUTE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestScaleV2Mute,
+        // Value of fix_audio_coupled_haptics_scaling is not important, should work with either
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expected), std::end(expected), 0);
+
+    scaleBuffer(HapticLevel::MUTE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestLegacyScaleNone,
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling),
+                                          ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(expected));
+
+    scaleBuffer(HapticLevel::NONE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestFixedScaleNone,
+                  REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling)),
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(expected));
+
+    scaleBuffer(HapticLevel::NONE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestScaleV2None,
+        // Value of fix_audio_coupled_haptics_scaling is not important, should work with either
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expected[TEST_BUFFER_LENGTH];
+    std::copy(std::begin(TEST_BUFFER), std::end(TEST_BUFFER), std::begin(expected));
+
+    scaleBuffer(HapticLevel::NONE);
+    EXPECT_FLOATS_NEARLY_EQ(expected, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestLegacyScaleToHapticLevel,
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling),
+                                          ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.84f, -0.66f };
+    scaleBuffer(HapticLevel::VERY_HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.7f, -0.44f };
+    scaleBuffer(HapticLevel::HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.75f, -0.75f, 0.26f, -0.06f };
+    scaleBuffer(HapticLevel::LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.66f, -0.66f, 0.16f, -0.02f };
+    scaleBuffer(HapticLevel::VERY_LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestFixedScaleToHapticLevel,
+                  REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling)),
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.79f, -0.39f };
+    scaleBuffer(HapticLevel::VERY_HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.62f, -0.27f };
+    scaleBuffer(HapticLevel::HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.70f, -0.70f, 0.35f, -0.14f };
+    scaleBuffer(HapticLevel::LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.45f, -0.45f, 0.22f, -0.09f };
+    scaleBuffer(HapticLevel::VERY_LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestScaleV2ToHapticLevel,
+        // Value of fix_audio_coupled_haptics_scaling is not important, should work with either
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.8f, -0.38f };
+    scaleBuffer(HapticLevel::VERY_HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.63f, -0.27f };
+    scaleBuffer(HapticLevel::HIGH);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.71f, -0.71f, 0.35f, -0.14f };
+    scaleBuffer(HapticLevel::LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.51f, -0.51f, 0.25f, -0.1f };
+    scaleBuffer(HapticLevel::VERY_LOW);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestScaleV2ToScaleFactorIgnoresLevel,
+    // Value of fix_audio_coupled_haptics_scaling is not important, should work with either
+    REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    constexpr float adaptiveScaleNone = 1.0f;
+
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 1, -1, 1, -0.55f };
+    scaleBuffer(HapticScale(HapticLevel::LOW, 3.0f /* scaleFactor */, adaptiveScaleNone));
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1, -1, 0.66f, -0.29f };
+    scaleBuffer(HapticScale(HapticLevel::LOW, 1.5f /* scaleFactor */, adaptiveScaleNone));
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.8f, -0.8f, 0.4f, -0.16f };
+    scaleBuffer(HapticScale(HapticLevel::HIGH, 0.8f /* scaleFactor */, adaptiveScaleNone));
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.4f, -0.4f, 0.2f, -0.08f };
+    scaleBuffer(HapticScale(HapticLevel::HIGH, 0.4f /* scaleFactor */, adaptiveScaleNone));
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestAdaptiveScaleFactorAppliedAfterLegacyScale,
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling),
+                                          ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    // Haptic level scale up then adaptive scale down
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 0.2, -0.2, 0.16f, -0.13f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale up then adaptive scale up
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1.5f, -1.5f, 1.06f, -0.67f };
+    scaleBuffer(HapticLevel::HIGH, 1.5f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale down
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.45f, -0.45f, 0.15f, -0.04f };
+    scaleBuffer(HapticLevel::LOW, 0.6f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale up
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 1.33f, -1.33f, 0.33f, -0.05f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestAdaptiveScaleFactorAppliedAfterFixedScale,
+                  REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling)),
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    // Haptic level scale up then adaptive scale down
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 0.2, -0.2, 0.16f, -0.07f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale up then adaptive scale up
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1.5f, -1.5f, 0.93f, -0.41f };
+    scaleBuffer(HapticLevel::HIGH, 1.5f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale down
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.42f, -0.42f, 0.21f, -0.08f };
+    scaleBuffer(HapticLevel::LOW, 0.6f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale up
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 0.91f, -0.91f, 0.45f, -0.18f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestAdaptiveScaleFactorAppliedAfterScaleV2,
+        // Value of fix_audio_coupled_haptics_scaling is not important, should work with either
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    // Haptic level scale up then adaptive scale down
+    float expectedVeryHigh[TEST_BUFFER_LENGTH] = { 0.2, -0.2, 0.15f, -0.07f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale up then adaptive scale up
+    float expectedHigh[TEST_BUFFER_LENGTH] = { 1.5f, -1.5f, 0.95f, -0.41f };
+    scaleBuffer(HapticLevel::HIGH, 1.5f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale down
+    float expectedLow[TEST_BUFFER_LENGTH] = { 0.42f, -0.42f, 0.21f, -0.08f };
+    scaleBuffer(HapticLevel::LOW, 0.6f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Haptic level scale down then adaptive scale up
+    float expectedVeryLow[TEST_BUFFER_LENGTH] = { 1.02f, -1.02f, 0.51f, -0.2f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestLimitAppliedAfterLegacyScale,
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling),
+                                          ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    // Scaled = { 0.2, -0.2, 0.16f, -0.13f };
+    float expectedClippedVeryHigh[TEST_BUFFER_LENGTH] = { 0.15f, -0.15f, 0.15f, -0.13f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */, 0.15f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Scaled = { 1, -1, 0.5f, -0.2f };
+    float expectedClippedVeryLow[TEST_BUFFER_LENGTH] = { 0.7f, -0.7f, 0.33f, -0.05f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */, 0.7f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestLimitAppliedAfterFixedScale,
+                  REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, fix_audio_coupled_haptics_scaling)),
+                  REQUIRES_FLAGS_DISABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    // Scaled = { 0.2, -0.2, 0.16f, -0.13f };
+    float expectedClippedVeryHigh[TEST_BUFFER_LENGTH] = { 0.15f, -0.15f, 0.15f, -0.07f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */, 0.15f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Scaled = { 1, -1, 0.5f, -0.2f };
+    float expectedClippedVeryLow[TEST_BUFFER_LENGTH] = { 0.7f, -0.7f, 0.45f, -0.18f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */, 0.7f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
+
+TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestLimitAppliedAfterScaleV2,
+        // Value of fix_audio_coupled_haptics_scaling is not important, should work with either
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(FLAG_NS, haptics_scale_v2_enabled))) {
+    // Scaled = { 0.2, -0.2, 0.15f, -0.07f };
+    float expectedClippedVeryHigh[TEST_BUFFER_LENGTH] = { 0.15f, -0.15f, 0.15f, -0.07f };
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.2f /* adaptiveScaleFactor */, 0.15f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryHigh, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
+    // Scaled = { 1.02f, -1.02f, 0.51f, -0.2f }
+    float expectedClippedVeryLow[TEST_BUFFER_LENGTH] = { 0.7f, -0.7f, 0.51f, -0.2f };
+    scaleBuffer(HapticLevel::VERY_LOW, 2 /* adaptiveScaleFactor */, 0.7f /* limit */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedClippedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+}
diff --git a/libs/vibrator/tests/test_utils.h b/libs/vibrator/tests/test_utils.h
new file mode 100644
index 0000000..f491ea1
--- /dev/null
+++ b/libs/vibrator/tests/test_utils.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *            http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LIBVIBRATOR_TEST_UTILS_H
+#define LIBVIBRATOR_TEST_UTILS_H
+
+#include <gtest/gtest.h>
+
+#if !defined(EXPECT_FLOATS_NEARLY_EQ)
+#define EXPECT_FLOATS_NEARLY_EQ(expected, actual, length, epsilon)              \
+        for (size_t i = 0; i < length; i++) {                                   \
+            EXPECT_NEAR(expected[i], actual[i], epsilon) << " at Index: " << i; \
+        }
+#else
+#error Macro EXPECT_FLOATS_NEARLY_EQ already defined
+#endif
+
+#endif //LIBVIBRATOR_TEST_UTILS_H
diff --git a/opengl/include/EGL/egl.h b/opengl/include/EGL/egl.h
index c9e8b7c..782b6d9 100644
--- a/opengl/include/EGL/egl.h
+++ b/opengl/include/EGL/egl.h
@@ -6,39 +6,24 @@
 #endif
 
 /*
-** Copyright (c) 2013-2017 The Khronos Group Inc.
+** Copyright 2013-2020 The Khronos Group Inc.
+** SPDX-License-Identifier: Apache-2.0
 **
-** Permission is hereby granted, free of charge, to any person obtaining a
-** copy of this software and/or associated documentation files (the
-** "Materials"), to deal in the Materials without restriction, including
-** without limitation the rights to use, copy, modify, merge, publish,
-** distribute, sublicense, and/or sell copies of the Materials, and to
-** permit persons to whom the Materials are furnished to do so, subject to
-** the following conditions:
-**
-** The above copyright notice and this permission notice shall be included
-** in all copies or substantial portions of the Materials.
-**
-** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
-*/
-/*
-** This header is generated from the Khronos OpenGL / OpenGL ES XML
-** API Registry. The current version of the Registry, generator scripts
+** This header is generated from the Khronos EGL XML API Registry.
+** The current version of the Registry, generator scripts
 ** used to make the header, and the header can be found at
 **   http://www.khronos.org/registry/egl
 **
-** Khronos $Git commit SHA1: bae3518c48 $ on $Git commit date: 2018-05-17 10:56:57 -0700 $
+** Khronos $Git commit SHA1: 800219cd6e $ on $Git commit date: 2024-05-13 00:13:13 -0700 $
 */
 
 #include <EGL/eglplatform.h>
 
-/* Generated on date 20180517 */
+#ifndef EGL_EGL_PROTOTYPES
+#define EGL_EGL_PROTOTYPES 1
+#endif
+
+/* Generated on date 20240715 */
 
 /* Generated C header for:
  * API: egl
@@ -118,6 +103,31 @@
 #define EGL_VERSION                       0x3054
 #define EGL_WIDTH                         0x3057
 #define EGL_WINDOW_BIT                    0x0004
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLCHOOSECONFIGPROC) (EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLCOPYBUFFERSPROC) (EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target);
+typedef EGLContext (EGLAPIENTRYP PFNEGLCREATECONTEXTPROC) (EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEPBUFFERSURFACEPROC) (EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEPIXMAPSURFACEPROC) (EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint *attrib_list);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEWINDOWSURFACEPROC) (EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYCONTEXTPROC) (EGLDisplay dpy, EGLContext ctx);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYSURFACEPROC) (EGLDisplay dpy, EGLSurface surface);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETCONFIGATTRIBPROC) (EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETCONFIGSPROC) (EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
+typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETCURRENTDISPLAYPROC) (void);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLGETCURRENTSURFACEPROC) (EGLint readdraw);
+typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETDISPLAYPROC) (EGLNativeDisplayType display_id);
+typedef EGLint (EGLAPIENTRYP PFNEGLGETERRORPROC) (void);
+typedef __eglMustCastToProperFunctionPointerType (EGLAPIENTRYP PFNEGLGETPROCADDRESSPROC) (const char *procname);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLINITIALIZEPROC) (EGLDisplay dpy, EGLint *major, EGLint *minor);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLMAKECURRENTPROC) (EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYCONTEXTPROC) (EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value);
+typedef const char *(EGLAPIENTRYP PFNEGLQUERYSTRINGPROC) (EGLDisplay dpy, EGLint name);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYSURFACEPROC) (EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSPROC) (EGLDisplay dpy, EGLSurface surface);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLTERMINATEPROC) (EGLDisplay dpy);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLWAITGLPROC) (void);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLWAITNATIVEPROC) (EGLint engine);
+#if EGL_EGL_PROTOTYPES
 EGLAPI EGLBoolean EGLAPIENTRY eglChooseConfig (EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
 EGLAPI EGLBoolean EGLAPIENTRY eglCopyBuffers (EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target);
 EGLAPI EGLContext EGLAPIENTRY eglCreateContext (EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list);
@@ -142,6 +152,7 @@
 EGLAPI EGLBoolean EGLAPIENTRY eglTerminate (EGLDisplay dpy);
 EGLAPI EGLBoolean EGLAPIENTRY eglWaitGL (void);
 EGLAPI EGLBoolean EGLAPIENTRY eglWaitNative (EGLint engine);
+#endif
 #endif /* EGL_VERSION_1_0 */
 
 #ifndef EGL_VERSION_1_1
@@ -160,10 +171,16 @@
 #define EGL_TEXTURE_RGB                   0x305D
 #define EGL_TEXTURE_RGBA                  0x305E
 #define EGL_TEXTURE_TARGET                0x3081
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLBINDTEXIMAGEPROC) (EGLDisplay dpy, EGLSurface surface, EGLint buffer);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLRELEASETEXIMAGEPROC) (EGLDisplay dpy, EGLSurface surface, EGLint buffer);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSURFACEATTRIBPROC) (EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPINTERVALPROC) (EGLDisplay dpy, EGLint interval);
+#if EGL_EGL_PROTOTYPES
 EGLAPI EGLBoolean EGLAPIENTRY eglBindTexImage (EGLDisplay dpy, EGLSurface surface, EGLint buffer);
 EGLAPI EGLBoolean EGLAPIENTRY eglReleaseTexImage (EGLDisplay dpy, EGLSurface surface, EGLint buffer);
 EGLAPI EGLBoolean EGLAPIENTRY eglSurfaceAttrib (EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value);
 EGLAPI EGLBoolean EGLAPIENTRY eglSwapInterval (EGLDisplay dpy, EGLint interval);
+#endif
 #endif /* EGL_VERSION_1_1 */
 
 #ifndef EGL_VERSION_1_2
@@ -199,11 +216,18 @@
 #define EGL_SWAP_BEHAVIOR                 0x3093
 #define EGL_UNKNOWN                       EGL_CAST(EGLint,-1)
 #define EGL_VERTICAL_RESOLUTION           0x3091
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLBINDAPIPROC) (EGLenum api);
+typedef EGLenum (EGLAPIENTRYP PFNEGLQUERYAPIPROC) (void);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEPBUFFERFROMCLIENTBUFFERPROC) (EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLRELEASETHREADPROC) (void);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLWAITCLIENTPROC) (void);
+#if EGL_EGL_PROTOTYPES
 EGLAPI EGLBoolean EGLAPIENTRY eglBindAPI (EGLenum api);
 EGLAPI EGLenum EGLAPIENTRY eglQueryAPI (void);
 EGLAPI EGLSurface EGLAPIENTRY eglCreatePbufferFromClientBuffer (EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list);
 EGLAPI EGLBoolean EGLAPIENTRY eglReleaseThread (void);
 EGLAPI EGLBoolean EGLAPIENTRY eglWaitClient (void);
+#endif
 #endif /* EGL_VERSION_1_2 */
 
 #ifndef EGL_VERSION_1_3
@@ -232,7 +256,10 @@
 #define EGL_OPENGL_API                    0x30A2
 #define EGL_OPENGL_BIT                    0x0008
 #define EGL_SWAP_BEHAVIOR_PRESERVED_BIT   0x0400
+typedef EGLContext (EGLAPIENTRYP PFNEGLGETCURRENTCONTEXTPROC) (void);
+#if EGL_EGL_PROTOTYPES
 EGLAPI EGLContext EGLAPIENTRY eglGetCurrentContext (void);
+#endif
 #endif /* EGL_VERSION_1_4 */
 
 #ifndef EGL_VERSION_1_5
@@ -284,6 +311,17 @@
 #define EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x30B8
 #define EGL_IMAGE_PRESERVED               0x30D2
 #define EGL_NO_IMAGE                      EGL_CAST(EGLImage,0)
+typedef EGLSync (EGLAPIENTRYP PFNEGLCREATESYNCPROC) (EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYSYNCPROC) (EGLDisplay dpy, EGLSync sync);
+typedef EGLint (EGLAPIENTRYP PFNEGLCLIENTWAITSYNCPROC) (EGLDisplay dpy, EGLSync sync, EGLint flags, EGLTime timeout);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETSYNCATTRIBPROC) (EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLAttrib *value);
+typedef EGLImage (EGLAPIENTRYP PFNEGLCREATEIMAGEPROC) (EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLAttrib *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYIMAGEPROC) (EGLDisplay dpy, EGLImage image);
+typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETPLATFORMDISPLAYPROC) (EGLenum platform, void *native_display, const EGLAttrib *attrib_list);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEPLATFORMWINDOWSURFACEPROC) (EGLDisplay dpy, EGLConfig config, void *native_window, const EGLAttrib *attrib_list);
+typedef EGLSurface (EGLAPIENTRYP PFNEGLCREATEPLATFORMPIXMAPSURFACEPROC) (EGLDisplay dpy, EGLConfig config, void *native_pixmap, const EGLAttrib *attrib_list);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLWAITSYNCPROC) (EGLDisplay dpy, EGLSync sync, EGLint flags);
+#if EGL_EGL_PROTOTYPES
 EGLAPI EGLSync EGLAPIENTRY eglCreateSync (EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list);
 EGLAPI EGLBoolean EGLAPIENTRY eglDestroySync (EGLDisplay dpy, EGLSync sync);
 EGLAPI EGLint EGLAPIENTRY eglClientWaitSync (EGLDisplay dpy, EGLSync sync, EGLint flags, EGLTime timeout);
@@ -294,6 +332,7 @@
 EGLAPI EGLSurface EGLAPIENTRY eglCreatePlatformWindowSurface (EGLDisplay dpy, EGLConfig config, void *native_window, const EGLAttrib *attrib_list);
 EGLAPI EGLSurface EGLAPIENTRY eglCreatePlatformPixmapSurface (EGLDisplay dpy, EGLConfig config, void *native_pixmap, const EGLAttrib *attrib_list);
 EGLAPI EGLBoolean EGLAPIENTRY eglWaitSync (EGLDisplay dpy, EGLSync sync, EGLint flags);
+#endif
 #endif /* EGL_VERSION_1_5 */
 
 #ifdef __cplusplus
diff --git a/opengl/include/EGL/eglext.h b/opengl/include/EGL/eglext.h
index c787fc9..4d14c69 100644
--- a/opengl/include/EGL/eglext.h
+++ b/opengl/include/EGL/eglext.h
@@ -6,39 +6,20 @@
 #endif
 
 /*
-** Copyright (c) 2013-2017 The Khronos Group Inc.
+** Copyright 2013-2020 The Khronos Group Inc.
+** SPDX-License-Identifier: Apache-2.0
 **
-** Permission is hereby granted, free of charge, to any person obtaining a
-** copy of this software and/or associated documentation files (the
-** "Materials"), to deal in the Materials without restriction, including
-** without limitation the rights to use, copy, modify, merge, publish,
-** distribute, sublicense, and/or sell copies of the Materials, and to
-** permit persons to whom the Materials are furnished to do so, subject to
-** the following conditions:
-**
-** The above copyright notice and this permission notice shall be included
-** in all copies or substantial portions of the Materials.
-**
-** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
-*/
-/*
 ** This header is generated from the Khronos EGL XML API Registry.
 ** The current version of the Registry, generator scripts
 ** used to make the header, and the header can be found at
 **   http://www.khronos.org/registry/egl
 **
-** Khronos $Git commit SHA1: 726475c203 $ on $Git commit date: 2018-10-03 23:51:49 -0700 $
+** Khronos $Git commit SHA1: 800219cd6e $ on $Git commit date: 2024-05-13 00:13:13 -0700 $
 */
 
 #include <EGL/eglplatform.h>
 
-#define EGL_EGLEXT_VERSION 20181204
+#define EGL_EGLEXT_VERSION 20240715
 
 /* Generated C header for:
  * API: egl
@@ -443,9 +424,9 @@
 
 #ifndef EGL_KHR_swap_buffers_with_damage
 #define EGL_KHR_swap_buffers_with_damage 1
-typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEKHRPROC) (EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEKHRPROC) (EGLDisplay dpy, EGLSurface surface, const EGLint *rects, EGLint n_rects);
 #ifdef EGL_EGLEXT_PROTOTYPES
-EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffersWithDamageKHR (EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
+EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffersWithDamageKHR (EGLDisplay dpy, EGLSurface surface, const EGLint *rects, EGLint n_rects);
 #endif
 #endif /* EGL_KHR_swap_buffers_with_damage */
 
@@ -462,6 +443,10 @@
 #endif
 #endif /* EGL_KHR_wait_sync */
 
+#ifndef EGL_ANDROID_GLES_layers
+#define EGL_ANDROID_GLES_layers 1
+#endif /* EGL_ANDROID_GLES_layers */
+
 #ifndef EGL_ANDROID_blob_cache
 #define EGL_ANDROID_blob_cache 1
 typedef khronos_ssize_t EGLsizeiANDROID;
@@ -566,6 +551,11 @@
 #define EGL_RECORDABLE_ANDROID            0x3142
 #endif /* EGL_ANDROID_recordable */
 
+#ifndef EGL_ANDROID_telemetry_hint
+#define EGL_ANDROID_telemetry_hint 1
+#define EGL_TELEMETRY_HINT_ANDROID        0x3570
+#endif /* EGL_ANDROID_telemetry_hint */
+
 #ifndef EGL_ANGLE_d3d_share_handle_client_buffer
 #define EGL_ANGLE_d3d_share_handle_client_buffer 1
 #define EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE 0x3200
@@ -589,11 +579,25 @@
 #define EGL_ANGLE_surface_d3d_texture_2d_share_handle 1
 #endif /* EGL_ANGLE_surface_d3d_texture_2d_share_handle */
 
+#ifndef EGL_ANGLE_sync_control_rate
+#define EGL_ANGLE_sync_control_rate 1
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLGETMSCRATEANGLEPROC) (EGLDisplay dpy, EGLSurface surface, EGLint *numerator, EGLint *denominator);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLBoolean EGLAPIENTRY eglGetMscRateANGLE (EGLDisplay dpy, EGLSurface surface, EGLint *numerator, EGLint *denominator);
+#endif
+#endif /* EGL_ANGLE_sync_control_rate */
+
 #ifndef EGL_ANGLE_window_fixed_size
 #define EGL_ANGLE_window_fixed_size 1
 #define EGL_FIXED_SIZE_ANGLE              0x3201
 #endif /* EGL_ANGLE_window_fixed_size */
 
+#ifndef EGL_ARM_image_format
+#define EGL_ARM_image_format 1
+#define EGL_COLOR_COMPONENT_TYPE_UNSIGNED_INTEGER_ARM 0x3287
+#define EGL_COLOR_COMPONENT_TYPE_INTEGER_ARM 0x3288
+#endif /* EGL_ARM_image_format */
+
 #ifndef EGL_ARM_implicit_external_sync
 #define EGL_ARM_implicit_external_sync 1
 #define EGL_SYNC_PRIOR_COMMANDS_IMPLICIT_EXTERNAL_ARM 0x328A
@@ -652,6 +656,11 @@
 #endif
 #endif /* EGL_EXT_compositor */
 
+#ifndef EGL_EXT_config_select_group
+#define EGL_EXT_config_select_group 1
+#define EGL_CONFIG_SELECT_GROUP_EXT       0x34C0
+#endif /* EGL_EXT_config_select_group */
+
 #ifndef EGL_EXT_create_context_robustness
 #define EGL_EXT_create_context_robustness 1
 #define EGL_CONTEXT_OPENGL_ROBUST_ACCESS_EXT 0x30BF
@@ -684,6 +693,11 @@
 #define EGL_DRM_MASTER_FD_EXT             0x333C
 #endif /* EGL_EXT_device_drm */
 
+#ifndef EGL_EXT_device_drm_render_node
+#define EGL_EXT_device_drm_render_node 1
+#define EGL_DRM_RENDER_NODE_FILE_EXT      0x3377
+#endif /* EGL_EXT_device_drm_render_node */
+
 #ifndef EGL_EXT_device_enumeration
 #define EGL_EXT_device_enumeration 1
 #endif /* EGL_EXT_device_enumeration */
@@ -691,12 +705,33 @@
 #ifndef EGL_EXT_device_openwf
 #define EGL_EXT_device_openwf 1
 #define EGL_OPENWF_DEVICE_ID_EXT          0x3237
+#define EGL_OPENWF_DEVICE_EXT             0x333D
 #endif /* EGL_EXT_device_openwf */
 
+#ifndef EGL_EXT_device_persistent_id
+#define EGL_EXT_device_persistent_id 1
+#define EGL_DEVICE_UUID_EXT               0x335C
+#define EGL_DRIVER_UUID_EXT               0x335D
+#define EGL_DRIVER_NAME_EXT               0x335E
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYDEVICEBINARYEXTPROC) (EGLDeviceEXT device, EGLint name, EGLint max_size, void *value, EGLint *size);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLBoolean EGLAPIENTRY eglQueryDeviceBinaryEXT (EGLDeviceEXT device, EGLint name, EGLint max_size, void *value, EGLint *size);
+#endif
+#endif /* EGL_EXT_device_persistent_id */
+
 #ifndef EGL_EXT_device_query
 #define EGL_EXT_device_query 1
 #endif /* EGL_EXT_device_query */
 
+#ifndef EGL_EXT_device_query_name
+#define EGL_EXT_device_query_name 1
+#define EGL_RENDERER_EXT                  0x335F
+#endif /* EGL_EXT_device_query_name */
+
+#ifndef EGL_EXT_explicit_device
+#define EGL_EXT_explicit_device 1
+#endif /* EGL_EXT_explicit_device */
+
 #ifndef EGL_EXT_gl_colorspace_bt2020_hlg
 #define EGL_EXT_gl_colorspace_bt2020_hlg 1
 #define EGL_GL_COLORSPACE_BT2020_HLG_EXT  0x3540
@@ -878,6 +913,17 @@
 #define EGL_PLATFORM_X11_SCREEN_EXT       0x31D6
 #endif /* EGL_EXT_platform_x11 */
 
+#ifndef EGL_EXT_platform_xcb
+#define EGL_EXT_platform_xcb 1
+#define EGL_PLATFORM_XCB_EXT              0x31DC
+#define EGL_PLATFORM_XCB_SCREEN_EXT       0x31DE
+#endif /* EGL_EXT_platform_xcb */
+
+#ifndef EGL_EXT_present_opaque
+#define EGL_EXT_present_opaque 1
+#define EGL_PRESENT_OPAQUE_EXT            0x31DF
+#endif /* EGL_EXT_present_opaque */
+
 #ifndef EGL_EXT_protected_content
 #define EGL_EXT_protected_content 1
 #define EGL_PROTECTED_CONTENT_EXT         0x32C0
@@ -887,6 +933,10 @@
 #define EGL_EXT_protected_surface 1
 #endif /* EGL_EXT_protected_surface */
 
+#ifndef EGL_EXT_query_reset_notification_strategy
+#define EGL_EXT_query_reset_notification_strategy 1
+#endif /* EGL_EXT_query_reset_notification_strategy */
+
 #ifndef EGL_EXT_stream_consumer_egloutput
 #define EGL_EXT_stream_consumer_egloutput 1
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMCONSUMEROUTPUTEXTPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLOutputLayerEXT layer);
@@ -916,11 +966,36 @@
 #define EGL_METADATA_SCALING_EXT          50000
 #endif /* EGL_EXT_surface_SMPTE2086_metadata */
 
+#ifndef EGL_EXT_surface_compression
+#define EGL_EXT_surface_compression 1
+#define EGL_SURFACE_COMPRESSION_EXT       0x34B0
+#define EGL_SURFACE_COMPRESSION_PLANE1_EXT 0x328E
+#define EGL_SURFACE_COMPRESSION_PLANE2_EXT 0x328F
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_NONE_EXT 0x34B1
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_DEFAULT_EXT 0x34B2
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_1BPC_EXT 0x34B4
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_2BPC_EXT 0x34B5
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_3BPC_EXT 0x34B6
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_4BPC_EXT 0x34B7
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_5BPC_EXT 0x34B8
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_6BPC_EXT 0x34B9
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_7BPC_EXT 0x34BA
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_8BPC_EXT 0x34BB
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_9BPC_EXT 0x34BC
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_10BPC_EXT 0x34BD
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_11BPC_EXT 0x34BE
+#define EGL_SURFACE_COMPRESSION_FIXED_RATE_12BPC_EXT 0x34BF
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYSUPPORTEDCOMPRESSIONRATESEXTPROC) (EGLDisplay dpy, EGLConfig config, const EGLAttrib *attrib_list, EGLint *rates, EGLint rate_size, EGLint *num_rates);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLBoolean EGLAPIENTRY eglQuerySupportedCompressionRatesEXT (EGLDisplay dpy, EGLConfig config, const EGLAttrib *attrib_list, EGLint *rates, EGLint rate_size, EGLint *num_rates);
+#endif
+#endif /* EGL_EXT_surface_compression */
+
 #ifndef EGL_EXT_swap_buffers_with_damage
 #define EGL_EXT_swap_buffers_with_damage 1
-typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC) (EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC) (EGLDisplay dpy, EGLSurface surface, const EGLint *rects, EGLint n_rects);
 #ifdef EGL_EGLEXT_PROTOTYPES
-EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffersWithDamageEXT (EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
+EGLAPI EGLBoolean EGLAPIENTRY eglSwapBuffersWithDamageEXT (EGLDisplay dpy, EGLSurface surface, const EGLint *rects, EGLint n_rects);
 #endif
 #endif /* EGL_EXT_swap_buffers_with_damage */
 
@@ -1036,6 +1111,16 @@
 #define EGL_PLATFORM_SURFACELESS_MESA     0x31DD
 #endif /* EGL_MESA_platform_surfaceless */
 
+#ifndef EGL_MESA_query_driver
+#define EGL_MESA_query_driver 1
+typedef char *(EGLAPIENTRYP PFNEGLGETDISPLAYDRIVERCONFIGPROC) (EGLDisplay dpy);
+typedef const char *(EGLAPIENTRYP PFNEGLGETDISPLAYDRIVERNAMEPROC) (EGLDisplay dpy);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI char *EGLAPIENTRY eglGetDisplayDriverConfig (EGLDisplay dpy);
+EGLAPI const char *EGLAPIENTRY eglGetDisplayDriverName (EGLDisplay dpy);
+#endif
+#endif /* EGL_MESA_query_driver */
+
 #ifndef EGL_NOK_swap_region
 #define EGL_NOK_swap_region 1
 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSREGIONNOKPROC) (EGLDisplay dpy, EGLSurface surface, EGLint numRects, const EGLint *rects);
@@ -1124,11 +1209,39 @@
 #endif
 #endif /* EGL_NV_post_sub_buffer */
 
+#ifndef EGL_NV_quadruple_buffer
+#define EGL_NV_quadruple_buffer 1
+#define EGL_QUADRUPLE_BUFFER_NV           0x3231
+#endif /* EGL_NV_quadruple_buffer */
+
 #ifndef EGL_NV_robustness_video_memory_purge
 #define EGL_NV_robustness_video_memory_purge 1
 #define EGL_GENERATE_RESET_ON_VIDEO_MEMORY_PURGE_NV 0x334C
 #endif /* EGL_NV_robustness_video_memory_purge */
 
+#ifndef EGL_NV_stream_consumer_eglimage
+#define EGL_NV_stream_consumer_eglimage 1
+#define EGL_STREAM_CONSUMER_IMAGE_NV      0x3373
+#define EGL_STREAM_IMAGE_ADD_NV           0x3374
+#define EGL_STREAM_IMAGE_REMOVE_NV        0x3375
+#define EGL_STREAM_IMAGE_AVAILABLE_NV     0x3376
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMIMAGECONSUMERCONNECTNVPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLint num_modifiers, const EGLuint64KHR *modifiers, const EGLAttrib *attrib_list);
+typedef EGLint (EGLAPIENTRYP PFNEGLQUERYSTREAMCONSUMEREVENTNVPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLTime timeout, EGLenum *event, EGLAttrib *aux);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMACQUIREIMAGENVPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLImage *pImage, EGLSync sync);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLSTREAMRELEASEIMAGENVPROC) (EGLDisplay dpy, EGLStreamKHR stream, EGLImage image, EGLSync sync);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLBoolean EGLAPIENTRY eglStreamImageConsumerConnectNV (EGLDisplay dpy, EGLStreamKHR stream, EGLint num_modifiers, const EGLuint64KHR *modifiers, const EGLAttrib *attrib_list);
+EGLAPI EGLint EGLAPIENTRY eglQueryStreamConsumerEventNV (EGLDisplay dpy, EGLStreamKHR stream, EGLTime timeout, EGLenum *event, EGLAttrib *aux);
+EGLAPI EGLBoolean EGLAPIENTRY eglStreamAcquireImageNV (EGLDisplay dpy, EGLStreamKHR stream, EGLImage *pImage, EGLSync sync);
+EGLAPI EGLBoolean EGLAPIENTRY eglStreamReleaseImageNV (EGLDisplay dpy, EGLStreamKHR stream, EGLImage image, EGLSync sync);
+#endif
+#endif /* EGL_NV_stream_consumer_eglimage */
+
+#ifndef EGL_NV_stream_consumer_eglimage_use_scanout_attrib
+#define EGL_NV_stream_consumer_eglimage_use_scanout_attrib 1
+#define EGL_STREAM_CONSUMER_IMAGE_USE_SCANOUT_NV 0x3378
+#endif /* EGL_NV_stream_consumer_eglimage_use_scanout_attrib */
+
 #ifndef EGL_NV_stream_consumer_gltexture_yuv
 #define EGL_NV_stream_consumer_gltexture_yuv 1
 #define EGL_YUV_PLANE0_TEXTURE_UNIT_NV    0x332C
@@ -1165,6 +1278,12 @@
 #define EGL_STREAM_CROSS_SYSTEM_NV        0x334F
 #endif /* EGL_NV_stream_cross_system */
 
+#ifndef EGL_NV_stream_dma
+#define EGL_NV_stream_dma 1
+#define EGL_STREAM_DMA_NV                 0x3371
+#define EGL_STREAM_DMA_SERVER_NV          0x3372
+#endif /* EGL_NV_stream_dma */
+
 #ifndef EGL_NV_stream_fifo_next
 #define EGL_NV_stream_fifo_next 1
 #define EGL_PENDING_FRAME_NV              0x3329
@@ -1216,6 +1335,21 @@
 #endif
 #endif /* EGL_NV_stream_metadata */
 
+#ifndef EGL_NV_stream_origin
+#define EGL_NV_stream_origin 1
+#define EGL_STREAM_FRAME_ORIGIN_X_NV      0x3366
+#define EGL_STREAM_FRAME_ORIGIN_Y_NV      0x3367
+#define EGL_STREAM_FRAME_MAJOR_AXIS_NV    0x3368
+#define EGL_CONSUMER_AUTO_ORIENTATION_NV  0x3369
+#define EGL_PRODUCER_AUTO_ORIENTATION_NV  0x336A
+#define EGL_LEFT_NV                       0x336B
+#define EGL_RIGHT_NV                      0x336C
+#define EGL_TOP_NV                        0x336D
+#define EGL_BOTTOM_NV                     0x336E
+#define EGL_X_AXIS_NV                     0x336F
+#define EGL_Y_AXIS_NV                     0x3370
+#endif /* EGL_NV_stream_origin */
+
 #ifndef EGL_NV_stream_remote
 #define EGL_NV_stream_remote 1
 #define EGL_STREAM_STATE_INITIALIZING_NV  0x3240
@@ -1312,6 +1446,21 @@
 #endif /* KHRONOS_SUPPORT_INT64 */
 #endif /* EGL_NV_system_time */
 
+#ifndef EGL_NV_triple_buffer
+#define EGL_NV_triple_buffer 1
+#define EGL_TRIPLE_BUFFER_NV              0x3230
+#endif /* EGL_NV_triple_buffer */
+
+#ifndef EGL_QNX_image_native_buffer
+#define EGL_QNX_image_native_buffer 1
+#define EGL_NATIVE_BUFFER_QNX             0x3551
+#endif /* EGL_QNX_image_native_buffer */
+
+#ifndef EGL_QNX_platform_screen
+#define EGL_QNX_platform_screen 1
+#define EGL_PLATFORM_SCREEN_QNX           0x3550
+#endif /* EGL_QNX_platform_screen */
+
 #ifndef EGL_TIZEN_image_native_buffer
 #define EGL_TIZEN_image_native_buffer 1
 #define EGL_NATIVE_BUFFER_TIZEN           0x32A0
@@ -1322,6 +1471,40 @@
 #define EGL_NATIVE_SURFACE_TIZEN          0x32A1
 #endif /* EGL_TIZEN_image_native_surface */
 
+#ifndef EGL_WL_bind_wayland_display
+#define EGL_WL_bind_wayland_display 1
+#define PFNEGLBINDWAYLANDDISPLAYWL PFNEGLBINDWAYLANDDISPLAYWLPROC
+#define PFNEGLUNBINDWAYLANDDISPLAYWL PFNEGLUNBINDWAYLANDDISPLAYWLPROC
+#define PFNEGLQUERYWAYLANDBUFFERWL PFNEGLQUERYWAYLANDBUFFERWLPROC
+struct wl_display;
+struct wl_resource;
+#define EGL_WAYLAND_BUFFER_WL             0x31D5
+#define EGL_WAYLAND_PLANE_WL              0x31D6
+#define EGL_TEXTURE_Y_U_V_WL              0x31D7
+#define EGL_TEXTURE_Y_UV_WL               0x31D8
+#define EGL_TEXTURE_Y_XUXV_WL             0x31D9
+#define EGL_TEXTURE_EXTERNAL_WL           0x31DA
+#define EGL_WAYLAND_Y_INVERTED_WL         0x31DB
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLBINDWAYLANDDISPLAYWLPROC) (EGLDisplay dpy, struct wl_display *display);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLUNBINDWAYLANDDISPLAYWLPROC) (EGLDisplay dpy, struct wl_display *display);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYWAYLANDBUFFERWLPROC) (EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLBoolean EGLAPIENTRY eglBindWaylandDisplayWL (EGLDisplay dpy, struct wl_display *display);
+EGLAPI EGLBoolean EGLAPIENTRY eglUnbindWaylandDisplayWL (EGLDisplay dpy, struct wl_display *display);
+EGLAPI EGLBoolean EGLAPIENTRY eglQueryWaylandBufferWL (EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
+#endif
+#endif /* EGL_WL_bind_wayland_display */
+
+#ifndef EGL_WL_create_wayland_buffer_from_image
+#define EGL_WL_create_wayland_buffer_from_image 1
+#define PFNEGLCREATEWAYLANDBUFFERFROMIMAGEWL PFNEGLCREATEWAYLANDBUFFERFROMIMAGEWLPROC
+struct wl_buffer;
+typedef struct wl_buffer *(EGLAPIENTRYP PFNEGLCREATEWAYLANDBUFFERFROMIMAGEWLPROC) (EGLDisplay dpy, EGLImageKHR image);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI struct wl_buffer *EGLAPIENTRY eglCreateWaylandBufferFromImageWL (EGLDisplay dpy, EGLImageKHR image);
+#endif
+#endif /* EGL_WL_create_wayland_buffer_from_image */
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/opengl/include/EGL/eglplatform.h b/opengl/include/EGL/eglplatform.h
index 0bc2cb9..6786afd 100644
--- a/opengl/include/EGL/eglplatform.h
+++ b/opengl/include/EGL/eglplatform.h
@@ -2,36 +2,17 @@
 #define __eglplatform_h_
 
 /*
-** Copyright (c) 2007-2016 The Khronos Group Inc.
-**
-** Permission is hereby granted, free of charge, to any person obtaining a
-** copy of this software and/or associated documentation files (the
-** "Materials"), to deal in the Materials without restriction, including
-** without limitation the rights to use, copy, modify, merge, publish,
-** distribute, sublicense, and/or sell copies of the Materials, and to
-** permit persons to whom the Materials are furnished to do so, subject to
-** the following conditions:
-**
-** The above copyright notice and this permission notice shall be included
-** in all copies or substantial portions of the Materials.
-**
-** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+** Copyright 2007-2020 The Khronos Group Inc.
+** SPDX-License-Identifier: Apache-2.0
 */
 
 /* Platform-specific types and definitions for egl.h
- * $Revision: 30994 $ on $Date: 2015-04-30 13:36:48 -0700 (Thu, 30 Apr 2015) $
  *
  * Adopters may modify khrplatform.h and this file to suit their platform.
  * You are encouraged to submit all modifications to the Khronos group so that
  * they can be included in future versions of this file.  Please submit changes
- * by sending them to the public Khronos Bugzilla (http://khronos.org/bugzilla)
- * by filing a bug against product "EGL" component "Registry".
+ * by filing an issue or pull request on the public Khronos EGL Registry, at
+ * https://www.github.com/KhronosGroup/EGL-Registry/
  */
 
 #include <KHR/khrplatform.h>
@@ -67,7 +48,13 @@
  * implementations.
  */
 
-#if defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) /* Win32 and WinCE */
+#if defined(EGL_NO_PLATFORM_SPECIFIC_TYPES)
+
+typedef void *EGLNativeDisplayType;
+typedef void *EGLNativePixmapType;
+typedef void *EGLNativeWindowType;
+
+#elif defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) /* Win32 and WinCE */
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN 1
 #endif
@@ -77,11 +64,23 @@
 typedef HBITMAP EGLNativePixmapType;
 typedef HWND    EGLNativeWindowType;
 
+#elif defined(__QNX__)
+
+typedef khronos_uintptr_t      EGLNativeDisplayType;
+typedef struct _screen_pixmap* EGLNativePixmapType;  /* screen_pixmap_t */
+typedef struct _screen_window* EGLNativeWindowType;  /* screen_window_t */
+
+#elif defined(__EMSCRIPTEN__)
+
+typedef int EGLNativeDisplayType;
+typedef int EGLNativePixmapType;
+typedef int EGLNativeWindowType;
+
 #elif defined(__WINSCW__) || defined(__SYMBIAN32__)  /* Symbian */
 
 typedef int   EGLNativeDisplayType;
-typedef void *EGLNativeWindowType;
 typedef void *EGLNativePixmapType;
+typedef void *EGLNativeWindowType;
 
 #elif defined(WL_EGL_PLATFORM)
 
@@ -100,17 +99,17 @@
 struct ANativeWindow;
 struct egl_native_pixmap_t;
 
-typedef struct ANativeWindow*           EGLNativeWindowType;
-typedef struct egl_native_pixmap_t*     EGLNativePixmapType;
 typedef void*                           EGLNativeDisplayType;
+typedef struct egl_native_pixmap_t*     EGLNativePixmapType;
+typedef struct ANativeWindow*           EGLNativeWindowType;
 
 #elif defined(USE_OZONE)
 
 typedef intptr_t EGLNativeDisplayType;
-typedef intptr_t EGLNativeWindowType;
 typedef intptr_t EGLNativePixmapType;
+typedef intptr_t EGLNativeWindowType;
 
-#elif defined(__unix__) || defined(USE_X11)
+#elif defined(USE_X11)
 
 /* X11 (tentative)  */
 #include <X11/Xlib.h>
@@ -120,11 +119,17 @@
 typedef Pixmap   EGLNativePixmapType;
 typedef Window   EGLNativeWindowType;
 
+#elif defined(__unix__)
+
+typedef void             *EGLNativeDisplayType;
+typedef khronos_uintptr_t EGLNativePixmapType;
+typedef khronos_uintptr_t EGLNativeWindowType;
+
 #elif defined(__APPLE__)
 
 typedef int   EGLNativeDisplayType;
-typedef void *EGLNativeWindowType;
 typedef void *EGLNativePixmapType;
+typedef void *EGLNativeWindowType;
 
 #elif defined(__HAIKU__)
 
@@ -134,6 +139,12 @@
 typedef khronos_uintptr_t  EGLNativePixmapType;
 typedef khronos_uintptr_t  EGLNativeWindowType;
 
+#elif defined(__Fuchsia__)
+
+typedef void              *EGLNativeDisplayType;
+typedef khronos_uintptr_t  EGLNativePixmapType;
+typedef khronos_uintptr_t  EGLNativeWindowType;
+
 #else
 #error "Platform not recognized"
 #endif
diff --git a/opengl/libs/EGL/eglApi.cpp b/opengl/libs/EGL/eglApi.cpp
index 502c14f..8cb637b 100644
--- a/opengl/libs/EGL/eglApi.cpp
+++ b/opengl/libs/EGL/eglApi.cpp
@@ -248,7 +248,7 @@
     return cnx->platform.eglGetProcAddress(procname);
 }
 
-EGLBoolean eglSwapBuffersWithDamageKHR(EGLDisplay dpy, EGLSurface draw, EGLint* rects,
+EGLBoolean eglSwapBuffersWithDamageKHR(EGLDisplay dpy, EGLSurface draw, const EGLint* rects,
                                        EGLint n_rects) {
     ATRACE_CALL();
     clearError();
diff --git a/opengl/libs/EGL/egl_entries.in b/opengl/libs/EGL/egl_entries.in
index 1c91f1d..b6f2c34 100644
--- a/opengl/libs/EGL/egl_entries.in
+++ b/opengl/libs/EGL/egl_entries.in
@@ -106,5 +106,5 @@
 
 /* Partial update extensions */
 
-EGL_ENTRY(EGLBoolean, eglSwapBuffersWithDamageKHR, EGLDisplay, EGLSurface, EGLint *, EGLint)
+EGL_ENTRY(EGLBoolean, eglSwapBuffersWithDamageKHR, EGLDisplay, EGLSurface, const EGLint *, EGLint)
 EGL_ENTRY(EGLBoolean, eglSetDamageRegionKHR, EGLDisplay, EGLSurface, EGLint *, EGLint)
diff --git a/opengl/libs/EGL/egl_platform_entries.cpp b/opengl/libs/EGL/egl_platform_entries.cpp
index a6af713..6e35041 100644
--- a/opengl/libs/EGL/egl_platform_entries.cpp
+++ b/opengl/libs/EGL/egl_platform_entries.cpp
@@ -916,42 +916,72 @@
             egl_context_t* const c = get_context(share_list);
             share_list = c->context;
         }
+
+        bool skip_telemetry = false;
+
+        auto findAttribute = [](const EGLint* attrib_ptr, GLint attribute, GLint* value) {
+            while (attrib_ptr && *attrib_ptr != EGL_NONE) {
+                GLint attr = *attrib_ptr++;
+                GLint val = *attrib_ptr++;
+                if (attr == attribute) {
+                    if (value) {
+                        *value = val;
+                    }
+                    return true;
+                }
+            }
+            return false;
+        };
+
+        std::vector<EGLint> replacement_attrib_list;
+        GLint telemetry_value;
+        if (findAttribute(attrib_list, EGL_TELEMETRY_HINT_ANDROID, &telemetry_value)) {
+            skip_telemetry = (telemetry_value == android::GpuStatsInfo::SKIP_TELEMETRY);
+
+            // We need to remove EGL_TELEMETRY_HINT_ANDROID or the underlying drivers will
+            // complain about an unexpected attribute
+            const EGLint* attrib_ptr = attrib_list;
+            while (attrib_ptr && *attrib_ptr != EGL_NONE) {
+                GLint attr = *attrib_ptr++;
+                GLint val = *attrib_ptr++;
+                if (attr != EGL_TELEMETRY_HINT_ANDROID) {
+                    replacement_attrib_list.push_back(attr);
+                    replacement_attrib_list.push_back(val);
+                }
+            }
+            replacement_attrib_list.push_back(EGL_NONE);
+            attrib_list = replacement_attrib_list.data();
+        }
         // b/111083885 - If we are presenting EGL 1.4 interface to apps
         // error out on robust access attributes that are invalid
         // in EGL 1.4 as the driver may be fine with them but dEQP expects
         // tests to fail according to spec.
         if (attrib_list && (cnx->driverVersion < EGL_MAKE_VERSION(1, 5, 0))) {
-            const EGLint* attrib_ptr = attrib_list;
-            while (*attrib_ptr != EGL_NONE) {
-                GLint attr = *attrib_ptr++;
-                GLint value = *attrib_ptr++;
-                if (attr == EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR) {
-                    // We are GL ES context with EGL 1.4, this is an invalid
-                    // attribute
-                    return setError(EGL_BAD_ATTRIBUTE, EGL_NO_CONTEXT);
-                }
-            };
+            if (findAttribute(attrib_list, EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+                              nullptr)) {
+                // We are GL ES context with EGL 1.4, this is an invalid attribute
+                return setError(EGL_BAD_ATTRIBUTE, EGL_NO_CONTEXT);
+            }
         }
         EGLContext context =
                 cnx->egl.eglCreateContext(dp->disp.dpy, config, share_list, attrib_list);
         if (context != EGL_NO_CONTEXT) {
             // figure out if it's a GLESv1 or GLESv2
             int version = egl_connection_t::GLESv1_INDEX;
-            if (attrib_list) {
-                while (*attrib_list != EGL_NONE) {
-                    GLint attr = *attrib_list++;
-                    GLint value = *attrib_list++;
-                    if (attr == EGL_CONTEXT_CLIENT_VERSION && (value == 2 || value == 3)) {
-                        version = egl_connection_t::GLESv2_INDEX;
-                    }
-                };
+            GLint version_value;
+            if (findAttribute(attrib_list, EGL_CONTEXT_CLIENT_VERSION, &version_value)) {
+                if (version_value == 2 || version_value == 3) {
+                    version = egl_connection_t::GLESv2_INDEX;
+                }
             }
             if (version == egl_connection_t::GLESv1_INDEX) {
                 android::GraphicsEnv::getInstance().setTargetStats(
                         android::GpuStatsInfo::Stats::GLES_1_IN_USE);
             }
-            android::GraphicsEnv::getInstance().setTargetStats(
-                    android::GpuStatsInfo::Stats::CREATED_GLES_CONTEXT);
+            if (!skip_telemetry) {
+                android::GraphicsEnv::getInstance().setTargetStats(
+                        android::GpuStatsInfo::Stats::CREATED_GLES_CONTEXT);
+            }
             egl_context_t* c = new egl_context_t(dpy, context, config, cnx, version);
             return c;
         }
@@ -1324,7 +1354,7 @@
     std::mutex mMutex;
 };
 
-EGLBoolean eglSwapBuffersWithDamageKHRImpl(EGLDisplay dpy, EGLSurface draw, EGLint* rects,
+EGLBoolean eglSwapBuffersWithDamageKHRImpl(EGLDisplay dpy, EGLSurface draw, const EGLint* rects,
                                            EGLint n_rects) {
     const egl_display_t* dp = validate_display(dpy);
     if (!dp) return EGL_FALSE;
diff --git a/opengl/libs/GLES2/gl2ext_api.in b/opengl/libs/GLES2/gl2ext_api.in
index 4a0d4b9..dc99e09 100644
--- a/opengl/libs/GLES2/gl2ext_api.in
+++ b/opengl/libs/GLES2/gl2ext_api.in
@@ -427,9 +427,6 @@
 void API_ENTRY(glDrawElementsInstancedBaseVertexEXT)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex) {
     CALL_GL_API(glDrawElementsInstancedBaseVertexEXT, mode, count, type, indices, instancecount, basevertex);
 }
-void API_ENTRY(glMultiDrawElementsBaseVertexOES)(GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex) {
-    CALL_GL_API(glMultiDrawElementsBaseVertexOES, mode, count, type, indices, primcount, basevertex);
-}
 void API_ENTRY(glDrawArraysInstancedEXT)(GLenum mode, GLint start, GLsizei count, GLsizei primcount) {
     CALL_GL_API(glDrawArraysInstancedEXT, mode, start, count, primcount);
 }
diff --git a/opengl/libs/entries.in b/opengl/libs/entries.in
index a306510..4c1eefc 100644
--- a/opengl/libs/entries.in
+++ b/opengl/libs/entries.in
@@ -605,7 +605,6 @@
 GL_ENTRY(void, glMultiDrawArraysEXT, GLenum mode, const GLint *first, const GLsizei *count, GLsizei primcount)
 GL_ENTRY(void, glMultiDrawArraysIndirectEXT, GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride)
 GL_ENTRY(void, glMultiDrawElementsBaseVertexEXT, GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex)
-GL_ENTRY(void, glMultiDrawElementsBaseVertexOES, GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex)
 GL_ENTRY(void, glMultiDrawElementsEXT, GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount)
 GL_ENTRY(void, glMultiDrawElementsIndirectEXT, GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride)
 GL_ENTRY(void, glMultiTexCoord4f, GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q)
diff --git a/opengl/libs/platform_entries.in b/opengl/libs/platform_entries.in
index 4673411..004aa5a 100644
--- a/opengl/libs/platform_entries.in
+++ b/opengl/libs/platform_entries.in
@@ -24,7 +24,7 @@
 EGL_ENTRY(EGLBoolean, eglWaitNative, EGLint)
 EGL_ENTRY(EGLint, eglGetError, void)
 EGL_ENTRY(__eglMustCastToProperFunctionPointerType, eglGetProcAddress, const char*)
-EGL_ENTRY(EGLBoolean, eglSwapBuffersWithDamageKHR, EGLDisplay, EGLSurface, EGLint*, EGLint)
+EGL_ENTRY(EGLBoolean, eglSwapBuffersWithDamageKHR, EGLDisplay, EGLSurface, const EGLint*, EGLint)
 EGL_ENTRY(EGLBoolean, eglSwapBuffers, EGLDisplay, EGLSurface)
 EGL_ENTRY(EGLBoolean, eglCopyBuffers, EGLDisplay, EGLSurface, NativePixmapType)
 EGL_ENTRY(const char*, eglQueryString, EGLDisplay, EGLint)
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index 70801dc..cb220ab 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -172,9 +172,8 @@
     export_static_lib_headers: [
         "libinputdispatcher",
     ],
-    export_include_dirs: [
-        ".",
-        "include",
+    export_shared_lib_headers: [
+        "libinputflinger_base",
     ],
 }
 
@@ -185,7 +184,16 @@
 cc_library_headers {
     name: "libinputflinger_headers",
     host_supported: true,
-    export_include_dirs: ["include"],
+    export_include_dirs: [
+        "include",
+        ".",
+    ],
+    header_libs: [
+        "libchrome-gestures_headers",
+    ],
+    export_header_lib_headers: [
+        "libchrome-gestures_headers",
+    ],
 }
 
 filegroup {
diff --git a/services/inputflinger/InputDeviceMetricsCollector.cpp b/services/inputflinger/InputDeviceMetricsCollector.cpp
index b5cb3cb..4621144 100644
--- a/services/inputflinger/InputDeviceMetricsCollector.cpp
+++ b/services/inputflinger/InputDeviceMetricsCollector.cpp
@@ -133,15 +133,6 @@
     mNextListener.notify(args);
 }
 
-void InputDeviceMetricsCollector::notifyConfigurationChanged(
-        const NotifyConfigurationChangedArgs& args) {
-    {
-        std::scoped_lock lock(mLock);
-        reportCompletedSessions();
-    }
-    mNextListener.notify(args);
-}
-
 void InputDeviceMetricsCollector::notifyKey(const NotifyKeyArgs& args) {
     {
         std::scoped_lock lock(mLock);
diff --git a/services/inputflinger/InputDeviceMetricsCollector.h b/services/inputflinger/InputDeviceMetricsCollector.h
index 1bcd527..0a520e6 100644
--- a/services/inputflinger/InputDeviceMetricsCollector.h
+++ b/services/inputflinger/InputDeviceMetricsCollector.h
@@ -107,7 +107,6 @@
                                 std::chrono::nanoseconds usageSessionTimeout);
 
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     void notifyKey(const NotifyKeyArgs& args) override;
     void notifyMotion(const NotifyMotionArgs& args) override;
     void notifySwitch(const NotifySwitchArgs& args) override;
diff --git a/services/inputflinger/InputFilter.cpp b/services/inputflinger/InputFilter.cpp
index 8e73ce5..e4d73fc 100644
--- a/services/inputflinger/InputFilter.cpp
+++ b/services/inputflinger/InputFilter.cpp
@@ -67,10 +67,6 @@
     mNextListener.notify(args);
 }
 
-void InputFilter::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    mNextListener.notify(args);
-}
-
 void InputFilter::notifyKey(const NotifyKeyArgs& args) {
     if (isFilterEnabled()) {
         LOG_ALWAYS_FATAL_IF(!mInputFilterRust->notifyKey(notifyKeyArgsToKeyEvent(args)).isOk());
diff --git a/services/inputflinger/InputFilter.h b/services/inputflinger/InputFilter.h
index 4ddc9f4..f626703 100644
--- a/services/inputflinger/InputFilter.h
+++ b/services/inputflinger/InputFilter.h
@@ -53,7 +53,6 @@
                          InputFilterPolicyInterface& policy);
     ~InputFilter() override = default;
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     void notifyKey(const NotifyKeyArgs& args) override;
     void notifyMotion(const NotifyMotionArgs& args) override;
     void notifySwitch(const NotifySwitchArgs& args) override;
diff --git a/services/inputflinger/InputListener.cpp b/services/inputflinger/InputListener.cpp
index 016ae04..8b6accf 100644
--- a/services/inputflinger/InputListener.cpp
+++ b/services/inputflinger/InputListener.cpp
@@ -47,7 +47,6 @@
 void InputListenerInterface::notify(const NotifyArgs& generalArgs) {
     Visitor v{
             [&](const NotifyInputDevicesChangedArgs& args) { notifyInputDevicesChanged(args); },
-            [&](const NotifyConfigurationChangedArgs& args) { notifyConfigurationChanged(args); },
             [&](const NotifyKeyArgs& args) { notifyKey(args); },
             [&](const NotifyMotionArgs& args) { notifyMotion(args); },
             [&](const NotifySwitchArgs& args) { notifySwitch(args); },
@@ -68,10 +67,6 @@
     mArgsQueue.emplace_back(args);
 }
 
-void QueuedInputListener::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    mArgsQueue.emplace_back(args);
-}
-
 void QueuedInputListener::notifyKey(const NotifyKeyArgs& args) {
     mArgsQueue.emplace_back(args);
 }
@@ -119,13 +114,6 @@
     mInnerListener.notify(args);
 }
 
-void TracedInputListener::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    constexpr static auto& fnName = __func__;
-    ATRACE_NAME_IF(ATRACE_ENABLED(),
-                   StringPrintf("%s::%s(id=0x%" PRIx32 ")", mName, fnName, args.id));
-    mInnerListener.notify(args);
-}
-
 void TracedInputListener::notifyKey(const NotifyKeyArgs& args) {
     constexpr static auto& fnName = __func__;
     ATRACE_NAME_IF(ATRACE_ENABLED(),
diff --git a/services/inputflinger/InputProcessor.cpp b/services/inputflinger/InputProcessor.cpp
index 6dd267c..8b8b1ad 100644
--- a/services/inputflinger/InputProcessor.cpp
+++ b/services/inputflinger/InputProcessor.cpp
@@ -419,12 +419,6 @@
     mQueuedListener.flush();
 }
 
-void InputProcessor::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    // pass through
-    mQueuedListener.notifyConfigurationChanged(args);
-    mQueuedListener.flush();
-}
-
 void InputProcessor::notifyKey(const NotifyKeyArgs& args) {
     // pass through
     mQueuedListener.notifyKey(args);
diff --git a/services/inputflinger/InputProcessor.h b/services/inputflinger/InputProcessor.h
index 7a00a2d..2945dd2 100644
--- a/services/inputflinger/InputProcessor.h
+++ b/services/inputflinger/InputProcessor.h
@@ -246,7 +246,6 @@
     explicit InputProcessor(InputListenerInterface& listener);
 
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     void notifyKey(const NotifyKeyArgs& args) override;
     void notifyMotion(const NotifyMotionArgs& args) override;
     void notifySwitch(const NotifySwitchArgs& args) override;
diff --git a/services/inputflinger/NotifyArgs.cpp b/services/inputflinger/NotifyArgs.cpp
index 19a4f26..b2680a2 100644
--- a/services/inputflinger/NotifyArgs.cpp
+++ b/services/inputflinger/NotifyArgs.cpp
@@ -35,11 +35,6 @@
                                                              std::vector<InputDeviceInfo> infos)
       : id(id), inputDeviceInfos(std::move(infos)) {}
 
-// --- NotifyConfigurationChangedArgs ---
-
-NotifyConfigurationChangedArgs::NotifyConfigurationChangedArgs(int32_t id, nsecs_t eventTime)
-      : id(id), eventTime(eventTime) {}
-
 // --- NotifyKeyArgs ---
 
 NotifyKeyArgs::NotifyKeyArgs(int32_t id, nsecs_t eventTime, nsecs_t readTime, int32_t deviceId,
@@ -198,7 +193,6 @@
 const char* toString(const NotifyArgs& args) {
     Visitor toStringVisitor{
             [&](const NotifyInputDevicesChangedArgs&) { return "NotifyInputDevicesChangedArgs"; },
-            [&](const NotifyConfigurationChangedArgs&) { return "NotifyConfigurationChangedArgs"; },
             [&](const NotifyKeyArgs&) { return "NotifyKeyArgs"; },
             [&](const NotifyMotionArgs&) { return "NotifyMotionArgs"; },
             [&](const NotifySensorArgs&) { return "NotifySensorArgs"; },
diff --git a/services/inputflinger/PointerChoreographer.cpp b/services/inputflinger/PointerChoreographer.cpp
index 00dd6ba..625599a 100644
--- a/services/inputflinger/PointerChoreographer.cpp
+++ b/services/inputflinger/PointerChoreographer.cpp
@@ -165,10 +165,6 @@
     mNextListener.notify(args);
 }
 
-void PointerChoreographer::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    mNextListener.notify(args);
-}
-
 void PointerChoreographer::notifyKey(const NotifyKeyArgs& args) {
     fadeMouseCursorOnKeyPress(args);
     mNextListener.notify(args);
@@ -202,6 +198,7 @@
     }
     auto it = mMousePointersByDisplay.find(targetDisplay);
     if (it != mMousePointersByDisplay.end()) {
+        mPolicy.notifyMouseCursorFadedOnTyping();
         it->second->fade(PointerControllerInterface::Transition::GRADUAL);
     }
 }
@@ -367,7 +364,8 @@
     const uint8_t actionIndex = MotionEvent::getActionIndex(args.action);
     std::array<uint32_t, MAX_POINTER_ID + 1> idToIndex;
     BitSet32 idBits;
-    if (maskedAction != AMOTION_EVENT_ACTION_UP && maskedAction != AMOTION_EVENT_ACTION_CANCEL) {
+    if (maskedAction != AMOTION_EVENT_ACTION_UP && maskedAction != AMOTION_EVENT_ACTION_CANCEL &&
+        maskedAction != AMOTION_EVENT_ACTION_HOVER_EXIT) {
         for (size_t i = 0; i < args.getPointerCount(); i++) {
             if (maskedAction == AMOTION_EVENT_ACTION_POINTER_UP && actionIndex == i) {
                 continue;
diff --git a/services/inputflinger/PointerChoreographer.h b/services/inputflinger/PointerChoreographer.h
index aaf1e3e..635487b 100644
--- a/services/inputflinger/PointerChoreographer.h
+++ b/services/inputflinger/PointerChoreographer.h
@@ -105,7 +105,6 @@
     void setFocusedDisplay(ui::LogicalDisplayId displayId) override;
 
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     void notifyKey(const NotifyKeyArgs& args) override;
     void notifyMotion(const NotifyMotionArgs& args) override;
     void notifySwitch(const NotifySwitchArgs& args) override;
diff --git a/services/inputflinger/TEST_MAPPING b/services/inputflinger/TEST_MAPPING
index a4dd909..af9d2eb 100644
--- a/services/inputflinger/TEST_MAPPING
+++ b/services/inputflinger/TEST_MAPPING
@@ -149,6 +149,9 @@
     },
     {
       "name": "monkey_test"
+    },
+    {
+      "name": "CtsSurfaceControlTests"
     }
   ],
   "postsubmit": [
@@ -290,6 +293,9 @@
     },
     {
       "name": "monkey_test"
+    },
+    {
+      "name": "CtsInputRootTestCases"
     }
   ],
   "staged-platinum-postsubmit": [
diff --git a/services/inputflinger/UnwantedInteractionBlocker.cpp b/services/inputflinger/UnwantedInteractionBlocker.cpp
index 1e2b9b3a..0e9ec91 100644
--- a/services/inputflinger/UnwantedInteractionBlocker.cpp
+++ b/services/inputflinger/UnwantedInteractionBlocker.cpp
@@ -342,12 +342,6 @@
                                                        bool enablePalmRejection)
       : mQueuedListener(listener), mEnablePalmRejection(enablePalmRejection) {}
 
-void UnwantedInteractionBlocker::notifyConfigurationChanged(
-        const NotifyConfigurationChangedArgs& args) {
-    mQueuedListener.notifyConfigurationChanged(args);
-    mQueuedListener.flush();
-}
-
 void UnwantedInteractionBlocker::notifyKey(const NotifyKeyArgs& args) {
     mQueuedListener.notifyKey(args);
     mQueuedListener.flush();
diff --git a/services/inputflinger/UnwantedInteractionBlocker.h b/services/inputflinger/UnwantedInteractionBlocker.h
index 419da83..8a66e25 100644
--- a/services/inputflinger/UnwantedInteractionBlocker.h
+++ b/services/inputflinger/UnwantedInteractionBlocker.h
@@ -91,7 +91,6 @@
     explicit UnwantedInteractionBlocker(InputListenerInterface& listener, bool enablePalmRejection);
 
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     void notifyKey(const NotifyKeyArgs& args) override;
     void notifyMotion(const NotifyMotionArgs& args) override;
     void notifySwitch(const NotifySwitchArgs& args) override;
diff --git a/services/inputflinger/dispatcher/Entry.cpp b/services/inputflinger/dispatcher/Entry.cpp
index ad9cec1..ff407af 100644
--- a/services/inputflinger/dispatcher/Entry.cpp
+++ b/services/inputflinger/dispatcher/Entry.cpp
@@ -68,15 +68,6 @@
         injectionState(nullptr),
         dispatchInProgress(false) {}
 
-// --- ConfigurationChangedEntry ---
-
-ConfigurationChangedEntry::ConfigurationChangedEntry(int32_t id, nsecs_t eventTime)
-      : EventEntry(id, Type::CONFIGURATION_CHANGED, eventTime, 0) {}
-
-std::string ConfigurationChangedEntry::getDescription() const {
-    return StringPrintf("ConfigurationChangedEvent(), policyFlags=0x%08x", policyFlags);
-}
-
 // --- DeviceResetEntry ---
 
 DeviceResetEntry::DeviceResetEntry(int32_t id, nsecs_t eventTime, int32_t deviceId)
diff --git a/services/inputflinger/dispatcher/Entry.h b/services/inputflinger/dispatcher/Entry.h
index f2f31d8..becfb05 100644
--- a/services/inputflinger/dispatcher/Entry.h
+++ b/services/inputflinger/dispatcher/Entry.h
@@ -32,7 +32,6 @@
 
 struct EventEntry {
     enum class Type {
-        CONFIGURATION_CHANGED,
         DEVICE_RESET,
         FOCUS,
         KEY,
@@ -78,11 +77,6 @@
     virtual ~EventEntry() = default;
 };
 
-struct ConfigurationChangedEntry : EventEntry {
-    explicit ConfigurationChangedEntry(int32_t id, nsecs_t eventTime);
-    std::string getDescription() const override;
-};
-
 struct DeviceResetEntry : EventEntry {
     int32_t deviceId;
 
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index f9fbfef..bcef350 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -558,7 +558,6 @@
 // Returns true if the event type passed as argument represents a user activity.
 bool isUserActivityEvent(const EventEntry& eventEntry) {
     switch (eventEntry.type) {
-        case EventEntry::Type::CONFIGURATION_CHANGED:
         case EventEntry::Type::DEVICE_RESET:
         case EventEntry::Type::DRAG:
         case EventEntry::Type::FOCUS:
@@ -694,7 +693,8 @@
  */
 std::vector<TouchedWindow> getHoveringWindowsLocked(const TouchState* oldState,
                                                     const TouchState& newTouchState,
-                                                    const MotionEntry& entry) {
+                                                    const MotionEntry& entry,
+                                                    std::function<void()> dump) {
     const int32_t maskedAction = MotionEvent::getActionMasked(entry.action);
 
     if (maskedAction == AMOTION_EVENT_ACTION_SCROLL) {
@@ -742,6 +742,7 @@
                     // crashing the device with FATAL.
                     severity = android::base::LogSeverity::ERROR;
                 }
+                dump();
                 LOG(severity) << "Expected ACTION_HOVER_MOVE instead of " << entry.getDescription();
             }
             touchedWindow.dispatchMode = InputTarget::DispatchMode::AS_IS;
@@ -901,6 +902,24 @@
     const nsecs_t mProcessingTimestamp;
 };
 
+/**
+ * This is needed to help use "InputEventInjectionResult" with base::Result.
+ */
+template <typename T>
+struct EnumErrorWrapper {
+    T mVal;
+    EnumErrorWrapper(T&& e) : mVal(std::forward<T>(e)) {}
+    operator const T&() const { return mVal; }
+    T value() const { return mVal; }
+    std::string print() const { return ftl::enum_string(mVal); }
+};
+
+Error<EnumErrorWrapper<InputEventInjectionResult>> injectionError(InputEventInjectionResult&& e) {
+    LOG_ALWAYS_FATAL_IF(e == InputEventInjectionResult::SUCCEEDED);
+    return Error<EnumErrorWrapper<InputEventInjectionResult>>(
+            std::forward<InputEventInjectionResult>(e));
+}
+
 } // namespace
 
 // --- InputDispatcher ---
@@ -1153,14 +1172,6 @@
     }
 
     switch (mPendingEvent->type) {
-        case EventEntry::Type::CONFIGURATION_CHANGED: {
-            const ConfigurationChangedEntry& typedEntry =
-                    static_cast<const ConfigurationChangedEntry&>(*mPendingEvent);
-            done = dispatchConfigurationChangedLocked(currentTime, typedEntry);
-            dropReason = DropReason::NOT_DROPPED; // configuration changes are never dropped
-            break;
-        }
-
         case EventEntry::Type::DEVICE_RESET: {
             const DeviceResetEntry& typedEntry =
                     static_cast<const DeviceResetEntry&>(*mPendingEvent);
@@ -1308,7 +1319,7 @@
 
         // Alternatively, maybe there's a spy window that could handle this event.
         const std::vector<sp<WindowInfoHandle>> touchedSpies =
-                findTouchedSpyWindowsAtLocked(displayId, x, y, isStylus);
+                findTouchedSpyWindowsAtLocked(displayId, x, y, isStylus, motionEntry.deviceId);
         for (const auto& windowHandle : touchedSpies) {
             const std::shared_ptr<Connection> connection =
                     getConnectionLocked(windowHandle->getToken());
@@ -1392,7 +1403,6 @@
             break;
         }
         case EventEntry::Type::TOUCH_MODE_CHANGED:
-        case EventEntry::Type::CONFIGURATION_CHANGED:
         case EventEntry::Type::DEVICE_RESET:
         case EventEntry::Type::SENSOR:
         case EventEntry::Type::POINTER_CAPTURE_CHANGED:
@@ -1463,15 +1473,27 @@
 }
 
 std::vector<sp<WindowInfoHandle>> InputDispatcher::findTouchedSpyWindowsAtLocked(
-        ui::LogicalDisplayId displayId, float x, float y, bool isStylus) const {
+        ui::LogicalDisplayId displayId, float x, float y, bool isStylus, DeviceId deviceId) const {
     // Traverse windows from front to back and gather the touched spy windows.
     std::vector<sp<WindowInfoHandle>> spyWindows;
     const auto& windowHandles = getWindowHandlesLocked(displayId);
     for (const sp<WindowInfoHandle>& windowHandle : windowHandles) {
         const WindowInfo& info = *windowHandle->getInfo();
-
         if (!windowAcceptsTouchAt(info, displayId, x, y, isStylus, getTransformLocked(displayId))) {
-            continue;
+            // Generally, we would skip any pointer that's outside of the window. However, if the
+            // spy prevents splitting, and already has some of the pointers from this device, then
+            // it should get more pointers from the same device, even if they are outside of that
+            // window
+            if (info.supportsSplitTouch()) {
+                continue;
+            }
+
+            // We know that split touch is not supported. Skip this window only if it doesn't have
+            // any touching pointers for this device already.
+            if (!windowHasTouchingPointersLocked(windowHandle, deviceId)) {
+                continue;
+            }
+            // If it already has pointers down for this device, then give it this pointer, too.
         }
         if (!info.isSpy()) {
             // The first touched non-spy window was found, so return the spy windows touched so far.
@@ -1554,7 +1576,6 @@
         }
         case EventEntry::Type::FOCUS:
         case EventEntry::Type::TOUCH_MODE_CHANGED:
-        case EventEntry::Type::CONFIGURATION_CHANGED:
         case EventEntry::Type::DEVICE_RESET: {
             LOG_ALWAYS_FATAL("Should not drop %s events", ftl::enum_string(entry.type).c_str());
             break;
@@ -1643,24 +1664,6 @@
     return newEntry;
 }
 
-bool InputDispatcher::dispatchConfigurationChangedLocked(nsecs_t currentTime,
-                                                         const ConfigurationChangedEntry& entry) {
-    if (DEBUG_OUTBOUND_EVENT_DETAILS) {
-        ALOGD("dispatchConfigurationChanged - eventTime=%" PRId64, entry.eventTime);
-    }
-
-    // Reset key repeating in case a keyboard device was added or removed or something.
-    resetKeyRepeatLocked();
-
-    // Enqueue a command to run outside the lock to tell the policy that the configuration changed.
-    auto command = [this, eventTime = entry.eventTime]() REQUIRES(mLock) {
-        scoped_unlock unlock(mLock);
-        mPolicy.notifyConfigurationChanged(eventTime);
-    };
-    postCommandLocked(std::move(command));
-    return true;
-}
-
 bool InputDispatcher::dispatchDeviceResetLocked(nsecs_t currentTime,
                                                 const DeviceResetEntry& entry) {
     if (DEBUG_OUTBOUND_EVENT_DETAILS) {
@@ -1923,20 +1926,21 @@
     }
 
     // Identify targets.
-    InputEventInjectionResult injectionResult;
-    sp<WindowInfoHandle> focusedWindow =
-            findFocusedWindowTargetLocked(currentTime, *entry, nextWakeupTime,
-                                          /*byref*/ injectionResult);
-    if (injectionResult == InputEventInjectionResult::PENDING) {
-        return false;
-    }
+    Result<sp<WindowInfoHandle>, InputEventInjectionResult> result =
+            findFocusedWindowTargetLocked(currentTime, *entry, nextWakeupTime);
 
-    setInjectionResult(*entry, injectionResult);
-    if (injectionResult != InputEventInjectionResult::SUCCEEDED) {
+    if (!result.ok()) {
+        if (result.error().code() == InputEventInjectionResult::PENDING) {
+            return false;
+        }
+        setInjectionResult(*entry, result.error().code());
         return true;
     }
+    sp<WindowInfoHandle>& focusedWindow = *result;
     LOG_ALWAYS_FATAL_IF(focusedWindow == nullptr);
 
+    setInjectionResult(*entry, InputEventInjectionResult::SUCCEEDED);
+
     std::vector<InputTarget> inputTargets;
     addWindowTargetLocked(focusedWindow, InputTarget::DispatchMode::AS_IS,
                           InputTarget::Flags::FOREGROUND, getDownTime(*entry), inputTargets);
@@ -2041,19 +2045,28 @@
             pilferPointersLocked(mDragState->dragWindow->getToken());
         }
 
-        inputTargets =
-                findTouchedWindowTargetsLocked(currentTime, *entry, /*byref*/ injectionResult);
-        LOG_ALWAYS_FATAL_IF(injectionResult != InputEventInjectionResult::SUCCEEDED &&
-                            !inputTargets.empty());
+        Result<std::vector<InputTarget>, InputEventInjectionResult> result =
+                findTouchedWindowTargetsLocked(currentTime, *entry);
+
+        if (result.ok()) {
+            inputTargets = std::move(*result);
+            injectionResult = InputEventInjectionResult::SUCCEEDED;
+        } else {
+            injectionResult = result.error().code();
+        }
     } else {
         // Non touch event.  (eg. trackball)
-        sp<WindowInfoHandle> focusedWindow =
-                findFocusedWindowTargetLocked(currentTime, *entry, nextWakeupTime, injectionResult);
-        if (injectionResult == InputEventInjectionResult::SUCCEEDED) {
+        Result<sp<WindowInfoHandle>, InputEventInjectionResult> result =
+                findFocusedWindowTargetLocked(currentTime, *entry, nextWakeupTime);
+        if (result.ok()) {
+            sp<WindowInfoHandle>& focusedWindow = *result;
             LOG_ALWAYS_FATAL_IF(focusedWindow == nullptr);
             addWindowTargetLocked(focusedWindow, InputTarget::DispatchMode::AS_IS,
                                   InputTarget::Flags::FOREGROUND, getDownTime(*entry),
                                   inputTargets);
+            injectionResult = InputEventInjectionResult::SUCCEEDED;
+        } else {
+            injectionResult = result.error().code();
         }
     }
     if (injectionResult == InputEventInjectionResult::PENDING) {
@@ -2114,19 +2127,16 @@
     if (DEBUG_OUTBOUND_EVENT_DETAILS) {
         ALOGD("%seventTime=%" PRId64 ", deviceId=%d, source=%s, displayId=%s, policyFlags=0x%x, "
               "action=%s, actionButton=0x%x, flags=0x%x, "
-              "metaState=0x%x, buttonState=0x%x,"
-              "edgeFlags=0x%x, xPrecision=%f, yPrecision=%f, downTime=%" PRId64,
+              "metaState=0x%x, buttonState=0x%x, downTime=%" PRId64,
               prefix, entry.eventTime, entry.deviceId,
               inputEventSourceToString(entry.source).c_str(), entry.displayId.toString().c_str(),
               entry.policyFlags, MotionEvent::actionToString(entry.action).c_str(),
-              entry.actionButton, entry.flags, entry.metaState, entry.buttonState, entry.edgeFlags,
-              entry.xPrecision, entry.yPrecision, entry.downTime);
+              entry.actionButton, entry.flags, entry.metaState, entry.buttonState, entry.downTime);
 
         for (uint32_t i = 0; i < entry.getPointerCount(); i++) {
             ALOGD("  Pointer %d: id=%d, toolType=%s, "
                   "x=%f, y=%f, pressure=%f, size=%f, "
-                  "touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, "
-                  "orientation=%f",
+                  "touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, orientation=%f",
                   i, entry.pointerProperties[i].id,
                   ftl::enum_string(entry.pointerProperties[i].toolType).c_str(),
                   entry.pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X),
@@ -2221,7 +2231,6 @@
         case EventEntry::Type::TOUCH_MODE_CHANGED:
         case EventEntry::Type::POINTER_CAPTURE_CHANGED:
         case EventEntry::Type::FOCUS:
-        case EventEntry::Type::CONFIGURATION_CHANGED:
         case EventEntry::Type::DEVICE_RESET:
         case EventEntry::Type::SENSOR:
         case EventEntry::Type::DRAG: {
@@ -2263,11 +2272,9 @@
     return false;
 }
 
-sp<WindowInfoHandle> InputDispatcher::findFocusedWindowTargetLocked(
-        nsecs_t currentTime, const EventEntry& entry, nsecs_t& nextWakeupTime,
-        InputEventInjectionResult& outInjectionResult) {
-    outInjectionResult = InputEventInjectionResult::FAILED; // Default result
-
+Result<sp<WindowInfoHandle>, InputEventInjectionResult>
+InputDispatcher::findFocusedWindowTargetLocked(nsecs_t currentTime, const EventEntry& entry,
+                                               nsecs_t& nextWakeupTime) {
     ui::LogicalDisplayId displayId = getTargetDisplayId(entry);
     sp<WindowInfoHandle> focusedWindowHandle = getFocusedWindowHandleLocked(displayId);
     std::shared_ptr<InputApplicationHandle> focusedApplicationHandle =
@@ -2279,12 +2286,12 @@
         ALOGI("Dropping %s event because there is no focused window or focused application in "
               "display %s.",
               ftl::enum_string(entry.type).c_str(), displayId.toString().c_str());
-        return nullptr;
+        return injectionError(InputEventInjectionResult::FAILED);
     }
 
     // Drop key events if requested by input feature
     if (focusedWindowHandle != nullptr && shouldDropInput(entry, focusedWindowHandle)) {
-        return nullptr;
+        return injectionError(InputEventInjectionResult::FAILED);
     }
 
     // Compatibility behavior: raise ANR if there is a focused application, but no focused window.
@@ -2304,17 +2311,15 @@
                   "window when it finishes starting up. Will wait for %" PRId64 "ms",
                   mAwaitedFocusedApplication->getName().c_str(), millis(timeout));
             nextWakeupTime = std::min(nextWakeupTime, *mNoFocusedWindowTimeoutTime);
-            outInjectionResult = InputEventInjectionResult::PENDING;
-            return nullptr;
+            return injectionError(InputEventInjectionResult::PENDING);
         } else if (currentTime > *mNoFocusedWindowTimeoutTime) {
             // Already raised ANR. Drop the event
             ALOGE("Dropping %s event because there is no focused window",
                   ftl::enum_string(entry.type).c_str());
-            return nullptr;
+            return injectionError(InputEventInjectionResult::FAILED);
         } else {
             // Still waiting for the focused window
-            outInjectionResult = InputEventInjectionResult::PENDING;
-            return nullptr;
+            return injectionError(InputEventInjectionResult::PENDING);
         }
     }
 
@@ -2324,15 +2329,13 @@
     // Verify targeted injection.
     if (const auto err = verifyTargetedInjection(focusedWindowHandle, entry); err) {
         ALOGW("Dropping injected event: %s", (*err).c_str());
-        outInjectionResult = InputEventInjectionResult::TARGET_MISMATCH;
-        return nullptr;
+        return injectionError(InputEventInjectionResult::TARGET_MISMATCH);
     }
 
     if (focusedWindowHandle->getInfo()->inputConfig.test(
                 WindowInfo::InputConfig::PAUSE_DISPATCHING)) {
         ALOGI("Waiting because %s is paused", focusedWindowHandle->getName().c_str());
-        outInjectionResult = InputEventInjectionResult::PENDING;
-        return nullptr;
+        return injectionError(InputEventInjectionResult::PENDING);
     }
 
     // If the event is a key event, then we must wait for all previous events to
@@ -2349,12 +2352,10 @@
     if (entry.type == EventEntry::Type::KEY) {
         if (shouldWaitToSendKeyLocked(currentTime, focusedWindowHandle->getName().c_str())) {
             nextWakeupTime = std::min(nextWakeupTime, *mKeyIsWaitingForEventsTimeout);
-            outInjectionResult = InputEventInjectionResult::PENDING;
-            return nullptr;
+            return injectionError(InputEventInjectionResult::PENDING);
         }
     }
-
-    outInjectionResult = InputEventInjectionResult::SUCCEEDED;
+    // Success!
     return focusedWindowHandle;
 }
 
@@ -2378,9 +2379,8 @@
     return responsiveMonitors;
 }
 
-std::vector<InputTarget> InputDispatcher::findTouchedWindowTargetsLocked(
-        nsecs_t currentTime, const MotionEntry& entry,
-        InputEventInjectionResult& outInjectionResult) {
+base::Result<std::vector<InputTarget>, android::os::InputEventInjectionResult>
+InputDispatcher::findTouchedWindowTargetsLocked(nsecs_t currentTime, const MotionEntry& entry) {
     ATRACE_CALL();
 
     std::vector<InputTarget> targets;
@@ -2390,9 +2390,6 @@
     const int32_t action = entry.action;
     const int32_t maskedAction = MotionEvent::getActionMasked(action);
 
-    // Update the touch state as needed based on the properties of the touch event.
-    outInjectionResult = InputEventInjectionResult::PENDING;
-
     // Copy current touch state into tempTouchState.
     // This state will be used to update mTouchStatesByDisplay at the end of this function.
     // If no state for the specified display exists, then our initial state will be empty.
@@ -2432,8 +2429,7 @@
             // Started hovering, but the device is already down: reject the hover event
             LOG(ERROR) << "Got hover event " << entry.getDescription()
                        << " but the device is already down " << oldState->dump();
-            outInjectionResult = InputEventInjectionResult::FAILED;
-            return {};
+            return injectionError(InputEventInjectionResult::FAILED);
         }
         // For hover actions, we will treat 'tempTouchState' as a new state, so let's erase
         // all of the existing hovering pointers and recompute.
@@ -2454,20 +2450,25 @@
         if (isDown) {
             targets += findOutsideTargetsLocked(displayId, newTouchedWindowHandle, pointer.id);
         }
+        LOG_IF(INFO, newTouchedWindowHandle == nullptr)
+                << "No new touched window at (" << std::format("{:.1f}, {:.1f}", x, y)
+                << ") in display " << displayId;
         // Handle the case where we did not find a window.
-        if (newTouchedWindowHandle == nullptr) {
-            ALOGD("No new touched window at (%.1f, %.1f) in display %s", x, y,
-                  displayId.toString().c_str());
-            // Try to assign the pointer to the first foreground window we find, if there is one.
-            newTouchedWindowHandle = tempTouchState.getFirstForegroundWindowHandle(entry.deviceId);
+        if (!input_flags::split_all_touches()) {
+            // If we are force splitting all touches, then touches outside of the window should
+            // be dropped, even if this device already has pointers down in another window.
+            if (newTouchedWindowHandle == nullptr) {
+                // Try to assign the pointer to the first foreground window we find, if there is
+                // one.
+                newTouchedWindowHandle =
+                        tempTouchState.getFirstForegroundWindowHandle(entry.deviceId);
+            }
         }
 
         // Verify targeted injection.
         if (const auto err = verifyTargetedInjection(newTouchedWindowHandle, entry); err) {
             ALOGW("Dropping injected touch event: %s", (*err).c_str());
-            outInjectionResult = os::InputEventInjectionResult::TARGET_MISMATCH;
-            newTouchedWindowHandle = nullptr;
-            return {};
+            return injectionError(InputEventInjectionResult::TARGET_MISMATCH);
         }
 
         // Figure out whether splitting will be allowed for this window.
@@ -2490,18 +2491,16 @@
         }
 
         std::vector<sp<WindowInfoHandle>> newTouchedWindows =
-                findTouchedSpyWindowsAtLocked(displayId, x, y, isStylus);
+                findTouchedSpyWindowsAtLocked(displayId, x, y, isStylus, entry.deviceId);
         if (newTouchedWindowHandle != nullptr) {
             // Process the foreground window first so that it is the first to receive the event.
             newTouchedWindows.insert(newTouchedWindows.begin(), newTouchedWindowHandle);
         }
 
         if (newTouchedWindows.empty()) {
-            ALOGI("Dropping event because there is no touchable window at (%.1f, %.1f) on display "
-                  "%s.",
-                  x, y, displayId.toString().c_str());
-            outInjectionResult = InputEventInjectionResult::FAILED;
-            return {};
+            LOG(INFO) << "Dropping event because there is no touchable window at (" << x << ", "
+                      << y << ") on display " << displayId << ": " << entry;
+            return injectionError(InputEventInjectionResult::FAILED);
         }
 
         for (const sp<WindowInfoHandle>& windowHandle : newTouchedWindows) {
@@ -2601,8 +2600,7 @@
                           << " is not down or we previously dropped the pointer down event in "
                           << "display " << displayId << ": " << entry.getDescription();
             }
-            outInjectionResult = InputEventInjectionResult::FAILED;
-            return {};
+            return injectionError(InputEventInjectionResult::FAILED);
         }
 
         // If the pointer is not currently hovering, then ignore the event.
@@ -2613,8 +2611,7 @@
                 LOG(INFO) << "Dropping event because the hovering pointer is not in any windows in "
                              "display "
                           << displayId << ": " << entry.getDescription();
-                outInjectionResult = InputEventInjectionResult::FAILED;
-                return {};
+                return injectionError(InputEventInjectionResult::FAILED);
             }
             tempTouchState.removeHoveringPointer(entry.deviceId, pointerId);
         }
@@ -2635,8 +2632,7 @@
             // Verify targeted injection.
             if (const auto err = verifyTargetedInjection(newTouchedWindowHandle, entry); err) {
                 ALOGW("Dropping injected event: %s", (*err).c_str());
-                outInjectionResult = os::InputEventInjectionResult::TARGET_MISMATCH;
-                return {};
+                return injectionError(InputEventInjectionResult::TARGET_MISMATCH);
             }
 
             // Do not slide events to the window which can not receive motion event
@@ -2689,7 +2685,7 @@
 
                 // Check if the wallpaper window should deliver the corresponding event.
                 slipWallpaperTouch(targetFlags, oldTouchedWindowHandle, newTouchedWindowHandle,
-                                   tempTouchState, entry.deviceId, pointer, targets);
+                                   tempTouchState, entry, targets);
                 tempTouchState.removeTouchingPointerFromWindow(entry.deviceId, pointer.id,
                                                                oldTouchedWindowHandle);
             }
@@ -2716,7 +2712,9 @@
     // Update dispatching for hover enter and exit.
     {
         std::vector<TouchedWindow> hoveringWindows =
-                getHoveringWindowsLocked(oldState, tempTouchState, entry);
+                getHoveringWindowsLocked(oldState, tempTouchState, entry,
+                                         std::bind_front(&InputDispatcher::logDispatchStateLocked,
+                                                         this));
         // Hardcode to single hovering pointer for now.
         std::bitset<MAX_POINTER_ID + 1> pointerIds;
         pointerIds.set(entry.pointerProperties[0].id);
@@ -2739,8 +2737,7 @@
             ALOGW("Dropping targeted injection: At least one touched window is not owned by uid "
                   "%s:%s",
                   entry.injectionState->targetUid->toString().c_str(), errs.c_str());
-            outInjectionResult = InputEventInjectionResult::TARGET_MISMATCH;
-            return {};
+            return injectionError(InputEventInjectionResult::TARGET_MISMATCH);
         }
     }
 
@@ -2797,8 +2794,7 @@
 
     if (targets.empty()) {
         LOG(INFO) << "Dropping event because no targets were found: " << entry.getDescription();
-        outInjectionResult = InputEventInjectionResult::FAILED;
-        return {};
+        return injectionError(InputEventInjectionResult::FAILED);
     }
 
     // If we only have windows getting ACTION_OUTSIDE, then drop the event, because there is no
@@ -2808,12 +2804,9 @@
         })) {
         LOG(INFO) << "Dropping event because all windows would just receive ACTION_OUTSIDE: "
                   << entry.getDescription();
-        outInjectionResult = InputEventInjectionResult::FAILED;
-        return {};
+        return injectionError(InputEventInjectionResult::FAILED);
     }
 
-    outInjectionResult = InputEventInjectionResult::SUCCEEDED;
-
     // Now that we have generated all of the input targets for this event, reset the dispatch
     // mode for all touched window to AS_IS.
     for (TouchedWindow& touchedWindow : tempTouchState.windows) {
@@ -3621,7 +3614,6 @@
             LOG_ALWAYS_FATAL("SENSOR events should not go to apps via input channel");
             break;
         }
-        case EventEntry::Type::CONFIGURATION_CHANGED:
         case EventEntry::Type::DEVICE_RESET: {
             LOG_ALWAYS_FATAL("%s events should not go to apps",
                              ftl::enum_string(eventEntry->type).c_str());
@@ -3834,6 +3826,10 @@
                 }
                 const MotionEntry& motionEntry = static_cast<const MotionEntry&>(eventEntry);
                 status = publishMotionEvent(*connection, *dispatchEntry);
+                if (status == BAD_VALUE) {
+                    logDispatchStateLocked();
+                    LOG(FATAL) << "Publisher failed for " << motionEntry;
+                }
                 if (mTracer) {
                     ensureEventTraced(motionEntry);
                     mTracer->traceEventDispatch(*dispatchEntry, *motionEntry.traceTracker);
@@ -3878,7 +3874,6 @@
                 break;
             }
 
-            case EventEntry::Type::CONFIGURATION_CHANGED:
             case EventEntry::Type::DEVICE_RESET:
             case EventEntry::Type::SENSOR: {
                 LOG_ALWAYS_FATAL("Should never start dispatch cycles for %s events",
@@ -4274,7 +4269,6 @@
                                  ftl::enum_string(cancelationEventEntry->type).c_str());
                 break;
             }
-            case EventEntry::Type::CONFIGURATION_CHANGED:
             case EventEntry::Type::DEVICE_RESET:
             case EventEntry::Type::SENSOR: {
                 LOG_ALWAYS_FATAL("%s event should not be found inside Connections's queue",
@@ -4357,7 +4351,6 @@
             case EventEntry::Type::KEY:
             case EventEntry::Type::FOCUS:
             case EventEntry::Type::TOUCH_MODE_CHANGED:
-            case EventEntry::Type::CONFIGURATION_CHANGED:
             case EventEntry::Type::DEVICE_RESET:
             case EventEntry::Type::POINTER_CAPTURE_CHANGED:
             case EventEntry::Type::SENSOR:
@@ -4443,28 +4436,11 @@
 
 void InputDispatcher::notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) {
     std::scoped_lock _l(mLock);
+    // Reset key repeating in case a keyboard device was added or removed or something.
+    resetKeyRepeatLocked();
     mLatencyTracker.setInputDevices(args.inputDeviceInfos);
 }
 
-void InputDispatcher::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    if (debugInboundEventDetails()) {
-        ALOGD("notifyConfigurationChanged - eventTime=%" PRId64, args.eventTime);
-    }
-
-    bool needWake = false;
-    { // acquire lock
-        std::scoped_lock _l(mLock);
-
-        std::unique_ptr<ConfigurationChangedEntry> newEntry =
-                std::make_unique<ConfigurationChangedEntry>(args.id, args.eventTime);
-        needWake = enqueueInboundEventLocked(std::move(newEntry));
-    } // release lock
-
-    if (needWake) {
-        mLooper->wake();
-    }
-}
-
 void InputDispatcher::notifyKey(const NotifyKeyArgs& args) {
     ALOGD_IF(debugInboundEventDetails(),
              "notifyKey - id=%" PRIx32 ", eventTime=%" PRId64
@@ -4552,13 +4528,12 @@
         ALOGD("notifyMotion - id=%" PRIx32 " eventTime=%" PRId64 ", deviceId=%d, source=%s, "
               "displayId=%s, policyFlags=0x%x, "
               "action=%s, actionButton=0x%x, flags=0x%x, metaState=0x%x, buttonState=0x%x, "
-              "edgeFlags=0x%x, xPrecision=%f, yPrecision=%f, xCursorPosition=%f, "
-              "yCursorPosition=%f, downTime=%" PRId64,
+              "xCursorPosition=%f, yCursorPosition=%f, downTime=%" PRId64,
               args.id, args.eventTime, args.deviceId, inputEventSourceToString(args.source).c_str(),
               args.displayId.toString().c_str(), args.policyFlags,
               MotionEvent::actionToString(args.action).c_str(), args.actionButton, args.flags,
-              args.metaState, args.buttonState, args.edgeFlags, args.xPrecision, args.yPrecision,
-              args.xCursorPosition, args.yCursorPosition, args.downTime);
+              args.metaState, args.buttonState, args.xCursorPosition, args.yCursorPosition,
+              args.downTime);
         for (uint32_t i = 0; i < args.getPointerCount(); i++) {
             ALOGD("  Pointer %d: id=%d, toolType=%s, x=%f, y=%f, pressure=%f, size=%f, "
                   "touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, orientation=%f",
@@ -4908,6 +4883,10 @@
                     logDispatchStateLocked();
                     LOG(ERROR) << "Inconsistent event: " << motionEvent
                                << ", reason: " << result.error();
+                    if (policyFlags & POLICY_FLAG_INJECTED_FROM_ACCESSIBILITY) {
+                        mLock.unlock();
+                        return InputEventInjectionResult::FAILED;
+                    }
                 }
             }
 
@@ -5680,7 +5659,7 @@
     mMaximumObscuringOpacityForTouch = opacity;
 }
 
-std::tuple<TouchState*, TouchedWindow*, ui::LogicalDisplayId /*displayId*/>
+std::tuple<TouchState*, TouchedWindow*, ui::LogicalDisplayId>
 InputDispatcher::findTouchStateWindowAndDisplayLocked(const sp<IBinder>& token) {
     for (auto& [displayId, state] : mTouchStatesByDisplay) {
         for (TouchedWindow& w : state.windows) {
@@ -5692,6 +5671,22 @@
     return std::make_tuple(nullptr, nullptr, ui::LogicalDisplayId::DEFAULT);
 }
 
+std::tuple<const TouchState*, const TouchedWindow*, ui::LogicalDisplayId>
+InputDispatcher::findTouchStateWindowAndDisplayLocked(const sp<IBinder>& token) const {
+    return const_cast<InputDispatcher*>(this)->findTouchStateWindowAndDisplayLocked(token);
+}
+
+bool InputDispatcher::windowHasTouchingPointersLocked(const sp<WindowInfoHandle>& windowHandle,
+                                                      DeviceId deviceId) const {
+    const auto& [touchState, touchedWindow, _] =
+            findTouchStateWindowAndDisplayLocked(windowHandle->getToken());
+    if (touchState == nullptr) {
+        // No touching pointers at all
+        return false;
+    }
+    return touchState->hasTouchingPointers(deviceId);
+}
+
 bool InputDispatcher::transferTouchGesture(const sp<IBinder>& fromToken, const sp<IBinder>& toToken,
                                            bool isDragDrop) {
     if (fromToken == toToken) {
@@ -6028,17 +6023,12 @@
                 dump += StringPrintf(INDENT3 "OutboundQueue: length=%zu\n",
                                      connection->outboundQueue.size());
                 dump += dumpQueue(connection->outboundQueue, currentTime);
-
-            } else {
-                dump += INDENT3 "OutboundQueue: <empty>\n";
             }
 
             if (!connection->waitQueue.empty()) {
                 dump += StringPrintf(INDENT3 "WaitQueue: length=%zu\n",
                                      connection->waitQueue.size());
                 dump += dumpQueue(connection->waitQueue, currentTime);
-            } else {
-                dump += INDENT3 "WaitQueue: <empty>\n";
             }
             std::string inputStateDump = streamableToString(connection->inputState);
             if (!inputStateDump.empty()) {
@@ -7032,6 +7022,13 @@
     for (const auto& info : update.windowInfos) {
         handlesPerDisplay.emplace(info.displayId, std::vector<sp<WindowInfoHandle>>());
         handlesPerDisplay[info.displayId].push_back(sp<WindowInfoHandle>::make(info));
+        if (input_flags::split_all_touches()) {
+            handlesPerDisplay[info.displayId]
+                    .back()
+                    ->editInfo()
+                    ->setInputConfig(android::gui::WindowInfo::InputConfig::PREVENT_SPLITTING,
+                                     false);
+        }
     }
 
     { // acquire lock
@@ -7107,9 +7104,11 @@
 void InputDispatcher::slipWallpaperTouch(ftl::Flags<InputTarget::Flags> targetFlags,
                                          const sp<WindowInfoHandle>& oldWindowHandle,
                                          const sp<WindowInfoHandle>& newWindowHandle,
-                                         TouchState& state, DeviceId deviceId,
-                                         const PointerProperties& pointerProperties,
+                                         TouchState& state, const MotionEntry& entry,
                                          std::vector<InputTarget>& targets) const {
+    LOG_IF(FATAL, entry.getPointerCount() != 1) << "Entry not eligible for slip: " << entry;
+    const DeviceId deviceId = entry.deviceId;
+    const PointerProperties& pointerProperties = entry.pointerProperties[0];
     std::vector<PointerProperties> pointers{pointerProperties};
     const bool oldHasWallpaper = oldWindowHandle->getInfo()->inputConfig.test(
             gui::WindowInfo::InputConfig::DUPLICATE_TOUCH_TO_WALLPAPER);
@@ -7136,7 +7135,7 @@
         state.addOrUpdateWindow(newWallpaper, InputTarget::DispatchMode::SLIPPERY_ENTER,
                                 InputTarget::Flags::WINDOW_IS_OBSCURED |
                                         InputTarget::Flags::WINDOW_IS_PARTIALLY_OBSCURED,
-                                deviceId, pointers);
+                                deviceId, pointers, entry.eventTime);
     }
 }
 
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index e2fc7a0..87dfd1d 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -97,7 +97,6 @@
     status_t stop() override;
 
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     void notifyKey(const NotifyKeyArgs& args) override;
     void notifyMotion(const NotifyMotionArgs& args) override;
     void notifySwitch(const NotifySwitchArgs& args) override;
@@ -258,7 +257,8 @@
             int32_t pointerId) const REQUIRES(mLock);
 
     std::vector<sp<android::gui::WindowInfoHandle>> findTouchedSpyWindowsAtLocked(
-            ui::LogicalDisplayId displayId, float x, float y, bool isStylus) const REQUIRES(mLock);
+            ui::LogicalDisplayId displayId, float x, float y, bool isStylus,
+            DeviceId deviceId) const REQUIRES(mLock);
 
     sp<android::gui::WindowInfoHandle> findTouchedForegroundWindowLocked(
             ui::LogicalDisplayId displayId) const REQUIRES(mLock);
@@ -446,8 +446,6 @@
             REQUIRES(mLock);
 
     // Dispatch inbound events.
-    bool dispatchConfigurationChangedLocked(nsecs_t currentTime,
-                                            const ConfigurationChangedEntry& entry) REQUIRES(mLock);
     bool dispatchDeviceResetLocked(nsecs_t currentTime, const DeviceResetEntry& entry)
             REQUIRES(mLock);
     bool dispatchKeyLocked(nsecs_t currentTime, std::shared_ptr<const KeyEntry> entry,
@@ -536,12 +534,11 @@
     void resetNoFocusedWindowTimeoutLocked() REQUIRES(mLock);
 
     ui::LogicalDisplayId getTargetDisplayId(const EventEntry& entry);
-    sp<android::gui::WindowInfoHandle> findFocusedWindowTargetLocked(
-            nsecs_t currentTime, const EventEntry& entry, nsecs_t& nextWakeupTime,
-            android::os::InputEventInjectionResult& outInjectionResult) REQUIRES(mLock);
-    std::vector<InputTarget> findTouchedWindowTargetsLocked(
-            nsecs_t currentTime, const MotionEntry& entry,
-            android::os::InputEventInjectionResult& outInjectionResult) REQUIRES(mLock);
+    base::Result<sp<android::gui::WindowInfoHandle>, android::os::InputEventInjectionResult>
+    findFocusedWindowTargetLocked(nsecs_t currentTime, const EventEntry& entry,
+                                  nsecs_t& nextWakeupTime) REQUIRES(mLock);
+    base::Result<std::vector<InputTarget>, android::os::InputEventInjectionResult>
+    findTouchedWindowTargetsLocked(nsecs_t currentTime, const MotionEntry& entry) REQUIRES(mLock);
     std::vector<Monitor> selectResponsiveMonitorsLocked(
             const std::vector<Monitor>& gestureMonitors) const REQUIRES(mLock);
 
@@ -684,16 +681,21 @@
                                   const std::string& reason) REQUIRES(mLock);
     void updateLastAnrStateLocked(const std::string& windowLabel, const std::string& reason)
             REQUIRES(mLock);
-    std::map<ui::LogicalDisplayId /*displayId*/, InputVerifier> mVerifiersByDisplay;
+    std::map<ui::LogicalDisplayId, InputVerifier> mVerifiersByDisplay;
     // Returns a fallback KeyEntry that should be sent to the connection, if required.
     std::unique_ptr<const KeyEntry> afterKeyEventLockedInterruptable(
             const std::shared_ptr<Connection>& connection, DispatchEntry* dispatchEntry,
             bool handled) REQUIRES(mLock);
 
     // Find touched state and touched window by token.
-    std::tuple<TouchState*, TouchedWindow*, ui::LogicalDisplayId /*displayId*/>
+    std::tuple<TouchState*, TouchedWindow*, ui::LogicalDisplayId>
     findTouchStateWindowAndDisplayLocked(const sp<IBinder>& token) REQUIRES(mLock);
 
+    std::tuple<const TouchState*, const TouchedWindow*, ui::LogicalDisplayId>
+    findTouchStateWindowAndDisplayLocked(const sp<IBinder>& token) const REQUIRES(mLock);
+    bool windowHasTouchingPointersLocked(const sp<android::gui::WindowInfoHandle>& windowHandle,
+                                         DeviceId deviceId) const REQUIRES(mLock);
+
     // Statistics gathering.
     LatencyAggregator mLatencyAggregator GUARDED_BY(mLock);
     LatencyTracker mLatencyTracker GUARDED_BY(mLock);
@@ -707,11 +709,23 @@
 
     sp<InputReporterInterface> mReporter;
 
+    /**
+     * Slip the wallpaper touch if necessary.
+     *
+     * @param targetFlags the target flags
+     * @param oldWindowHandle the old window that the touch slipped out of
+     * @param newWindowHandle the new window that the touch is slipping into
+     * @param state the current touch state. This will be updated if necessary to reflect the new
+     *        windows that are receiving touch.
+     * @param deviceId the device id of the current motion being processed
+     * @param pointerProperties the pointer properties of the current motion being processed
+     * @param targets the current targets to add the walpaper ones to
+     * @param eventTime the new downTime for the wallpaper target
+     */
     void slipWallpaperTouch(ftl::Flags<InputTarget::Flags> targetFlags,
                             const sp<android::gui::WindowInfoHandle>& oldWindowHandle,
                             const sp<android::gui::WindowInfoHandle>& newWindowHandle,
-                            TouchState& state, DeviceId deviceId,
-                            const PointerProperties& pointerProperties,
+                            TouchState& state, const MotionEntry& entry,
                             std::vector<InputTarget>& targets) const REQUIRES(mLock);
     void transferWallpaperTouch(ftl::Flags<InputTarget::Flags> oldTargetFlags,
                                 ftl::Flags<InputTarget::Flags> newTargetFlags,
diff --git a/services/inputflinger/dispatcher/InputEventTimeline.cpp b/services/inputflinger/dispatcher/InputEventTimeline.cpp
index a7c6d16..a365003 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.cpp
+++ b/services/inputflinger/dispatcher/InputEventTimeline.cpp
@@ -68,7 +68,7 @@
 
 InputEventTimeline::InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime,
                                        uint16_t vendorId, uint16_t productId,
-                                       std::set<InputDeviceUsageSource> sources)
+                                       const std::set<InputDeviceUsageSource>& sources)
       : isDown(isDown),
         eventTime(eventTime),
         readTime(readTime),
diff --git a/services/inputflinger/dispatcher/InputEventTimeline.h b/services/inputflinger/dispatcher/InputEventTimeline.h
index e9deb2d..1756944 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.h
+++ b/services/inputflinger/dispatcher/InputEventTimeline.h
@@ -76,7 +76,7 @@
 
 struct InputEventTimeline {
     InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime, uint16_t vendorId,
-                       uint16_t productId, std::set<InputDeviceUsageSource> sources);
+                       uint16_t productId, const std::set<InputDeviceUsageSource>& sources);
     const bool isDown; // True if this is an ACTION_DOWN event
     const nsecs_t eventTime;
     const nsecs_t readTime;
diff --git a/services/inputflinger/dispatcher/InputState.cpp b/services/inputflinger/dispatcher/InputState.cpp
index dfbe02f..4df23c5 100644
--- a/services/inputflinger/dispatcher/InputState.cpp
+++ b/services/inputflinger/dispatcher/InputState.cpp
@@ -647,7 +647,9 @@
     if (!state.mMotionMementos.empty()) {
         out << "mMotionMementos: ";
         for (const InputState::MotionMemento& memento : state.mMotionMementos) {
-            out << "{deviceId= " << memento.deviceId << ", hovering=" << memento.hovering << "}, ";
+            out << "{deviceId=" << memento.deviceId
+                << ", hovering=" << std::to_string(memento.hovering)
+                << ", downTime=" << memento.downTime << "}, ";
         }
     }
     return out;
diff --git a/services/inputflinger/dispatcher/TouchState.h b/services/inputflinger/dispatcher/TouchState.h
index 9d4bb3d..5a70dd5 100644
--- a/services/inputflinger/dispatcher/TouchState.h
+++ b/services/inputflinger/dispatcher/TouchState.h
@@ -47,7 +47,7 @@
             const sp<android::gui::WindowInfoHandle>& windowHandle,
             InputTarget::DispatchMode dispatchMode, ftl::Flags<InputTarget::Flags> targetFlags,
             DeviceId deviceId, const std::vector<PointerProperties>& touchingPointers,
-            std::optional<nsecs_t> firstDownTimeInTarget = std::nullopt);
+            std::optional<nsecs_t> firstDownTimeInTarget);
     void addHoveringPointerToWindow(const sp<android::gui::WindowInfoHandle>& windowHandle,
                                     DeviceId deviceId, const PointerProperties& pointer);
     void removeHoveringPointer(DeviceId deviceId, int32_t pointerId);
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
index 65fb76d..b885ba1 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
@@ -43,9 +43,6 @@
     InputDispatcherPolicyInterface() = default;
     virtual ~InputDispatcherPolicyInterface() = default;
 
-    /* Notifies the system that a configuration change has occurred. */
-    virtual void notifyConfigurationChanged(nsecs_t when) = 0;
-
     /* Notifies the system that an application does not have a focused window.
      */
     virtual void notifyNoFocusedWindowAnr(
diff --git a/services/inputflinger/include/InputListener.h b/services/inputflinger/include/InputListener.h
index 0b7f7c2..d8a9afa 100644
--- a/services/inputflinger/include/InputListener.h
+++ b/services/inputflinger/include/InputListener.h
@@ -38,7 +38,6 @@
     virtual ~InputListenerInterface() { }
 
     virtual void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) = 0;
-    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) = 0;
     virtual void notifyKey(const NotifyKeyArgs& args) = 0;
     virtual void notifyMotion(const NotifyMotionArgs& args) = 0;
     virtual void notifySwitch(const NotifySwitchArgs& args) = 0;
@@ -60,7 +59,6 @@
     explicit QueuedInputListener(InputListenerInterface& innerListener);
 
     virtual void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     virtual void notifyKey(const NotifyKeyArgs& args) override;
     virtual void notifyMotion(const NotifyMotionArgs& args) override;
     virtual void notifySwitch(const NotifySwitchArgs& args) override;
@@ -84,7 +82,6 @@
     explicit TracedInputListener(const char* name, InputListenerInterface& innerListener);
 
     virtual void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
-    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
     virtual void notifyKey(const NotifyKeyArgs& args) override;
     virtual void notifyMotion(const NotifyMotionArgs& args) override;
     virtual void notifySwitch(const NotifySwitchArgs& args) override;
diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 889ee09..42a03c1 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -397,6 +397,9 @@
      * Returns ReservedInputDeviceId::INVALID_INPUT_DEVICE_ID if no device has been used since boot.
      */
     virtual DeviceId getLastUsedInputDeviceId() = 0;
+
+    /* Notifies that mouse cursor faded due to typing. */
+    virtual void notifyMouseCursorFadedOnTyping() = 0;
 };
 
 // --- TouchAffineTransformation ---
diff --git a/services/inputflinger/include/NotifyArgs.h b/services/inputflinger/include/NotifyArgs.h
index db417cf..14487fe 100644
--- a/services/inputflinger/include/NotifyArgs.h
+++ b/services/inputflinger/include/NotifyArgs.h
@@ -39,21 +39,6 @@
     NotifyInputDevicesChangedArgs& operator=(const NotifyInputDevicesChangedArgs&) = default;
 };
 
-/* Describes a configuration change event. */
-struct NotifyConfigurationChangedArgs {
-    int32_t id;
-    nsecs_t eventTime;
-
-    inline NotifyConfigurationChangedArgs() {}
-
-    NotifyConfigurationChangedArgs(int32_t id, nsecs_t eventTime);
-
-    bool operator==(const NotifyConfigurationChangedArgs& rhs) const = default;
-
-    NotifyConfigurationChangedArgs(const NotifyConfigurationChangedArgs& other) = default;
-    NotifyConfigurationChangedArgs& operator=(const NotifyConfigurationChangedArgs&) = default;
-};
-
 /* Describes a key event. */
 struct NotifyKeyArgs {
     int32_t id;
@@ -234,8 +219,8 @@
 };
 
 using NotifyArgs =
-        std::variant<NotifyInputDevicesChangedArgs, NotifyConfigurationChangedArgs, NotifyKeyArgs,
-                     NotifyMotionArgs, NotifySensorArgs, NotifySwitchArgs, NotifyDeviceResetArgs,
+        std::variant<NotifyInputDevicesChangedArgs, NotifyKeyArgs, NotifyMotionArgs,
+                     NotifySensorArgs, NotifySwitchArgs, NotifyDeviceResetArgs,
                      NotifyPointerCaptureChangedArgs, NotifyVibratorStateArgs>;
 
 const char* toString(const NotifyArgs& args);
diff --git a/services/inputflinger/include/PointerChoreographerPolicyInterface.h b/services/inputflinger/include/PointerChoreographerPolicyInterface.h
index 7a85c12..e1f8fda 100644
--- a/services/inputflinger/include/PointerChoreographerPolicyInterface.h
+++ b/services/inputflinger/include/PointerChoreographerPolicyInterface.h
@@ -58,6 +58,9 @@
 
     /* Returns true if any InputConnection is currently active. */
     virtual bool isInputMethodConnectionActive() = 0;
+
+    /* Notifies that mouse cursor faded due to typing. */
+    virtual void notifyMouseCursorFadedOnTyping() = 0;
 };
 
 } // namespace android
diff --git a/libs/tracing_perfetto/include/trace_result.h b/services/inputflinger/include/TouchpadHardwareState.h
similarity index 60%
copy from libs/tracing_perfetto/include/trace_result.h
copy to services/inputflinger/include/TouchpadHardwareState.h
index f7581fc..a8dd44c 100644
--- a/libs/tracing_perfetto/include/trace_result.h
+++ b/services/inputflinger/include/TouchpadHardwareState.h
@@ -14,17 +14,19 @@
  * limitations under the License.
  */
 
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
+#pragma once
 
-namespace tracing_perfetto {
+#include <include/gestures.h>
+#include <vector>
 
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
+namespace android {
+
+// A Gestures library HardwareState struct (from libchrome-gestures), but bundled
+// with a vector to contain its FingerStates, so you don't have to worry about where
+// that memory is allocated.
+struct SelfContainedHardwareState {
+    HardwareState state;
+    std::vector<FingerState> fingers;
 };
 
-}
-
-#endif  // TRACE_RESULT_H
+} // namespace android
diff --git a/services/inputflinger/reader/Android.bp b/services/inputflinger/reader/Android.bp
index e76b648..b76e8c5 100644
--- a/services/inputflinger/reader/Android.bp
+++ b/services/inputflinger/reader/Android.bp
@@ -78,6 +78,7 @@
     name: "libinputreader_defaults",
     srcs: [":libinputreader_sources"],
     shared_libs: [
+        "android.companion.virtualdevice.flags-aconfig-cc",
         "libbase",
         "libcap",
         "libcrypto",
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index fe70a51..e11adb8 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -33,6 +33,8 @@
 #include <sys/sysmacros.h>
 #include <unistd.h>
 
+#include <android_companion_virtualdevice_flags.h>
+
 #define LOG_TAG "EventHub"
 
 // #define LOG_NDEBUG 0
@@ -68,6 +70,8 @@
 
 namespace android {
 
+namespace vd_flags = android::companion::virtualdevice::flags;
+
 using namespace ftl::flag_operators;
 
 static const char* DEVICE_INPUT_PATH = "/dev/input";
@@ -513,10 +517,10 @@
 
 // --- RawAbsoluteAxisInfo ---
 
-std::ostream& operator<<(std::ostream& out, const RawAbsoluteAxisInfo& info) {
-    if (info.valid) {
-        out << "min=" << info.minValue << ", max=" << info.maxValue << ", flat=" << info.flat
-            << ", fuzz=" << info.fuzz << ", resolution=" << info.resolution;
+std::ostream& operator<<(std::ostream& out, const std::optional<RawAbsoluteAxisInfo>& info) {
+    if (info) {
+        out << "min=" << info->minValue << ", max=" << info->maxValue << ", flat=" << info->flat
+            << ", fuzz=" << info->fuzz << ", resolution=" << info->resolution;
     } else {
         out << "unknown range";
     }
@@ -645,7 +649,6 @@
             continue;
         }
         auto& [axisInfo, value] = absState[axis];
-        axisInfo.valid = true;
         axisInfo.minValue = info.minimum;
         axisInfo.maxValue = info.maximum;
         axisInfo.flat = info.flat;
@@ -885,7 +888,6 @@
       : mBuiltInKeyboardId(NO_BUILT_IN_KEYBOARD),
         mNextDeviceId(1),
         mControllerNumbers(),
-        mNeedToSendFinishedDeviceScan(false),
         mNeedToReopenDevices(false),
         mNeedToScanDevices(true),
         mPendingEventCount(0),
@@ -998,26 +1000,23 @@
     return *device->configuration;
 }
 
-status_t EventHub::getAbsoluteAxisInfo(int32_t deviceId, int axis,
-                                       RawAbsoluteAxisInfo* outAxisInfo) const {
-    outAxisInfo->clear();
+std::optional<RawAbsoluteAxisInfo> EventHub::getAbsoluteAxisInfo(int32_t deviceId, int axis) const {
     if (axis < 0 || axis > ABS_MAX) {
-        return NAME_NOT_FOUND;
+        return std::nullopt;
     }
     std::scoped_lock _l(mLock);
     const Device* device = getDeviceLocked(deviceId);
     if (device == nullptr) {
-        return NAME_NOT_FOUND;
+        return std::nullopt;
     }
     // We can read the RawAbsoluteAxisInfo even if the device is disabled and doesn't have a valid
     // fd, because the info is populated once when the device is first opened, and it doesn't change
     // throughout the device lifecycle.
     auto it = device->absState.find(axis);
     if (it == device->absState.end()) {
-        return NAME_NOT_FOUND;
+        return std::nullopt;
     }
-    *outAxisInfo = it->second.info;
-    return OK;
+    return it->second.info;
 }
 
 bool EventHub::hasRelativeAxis(int32_t deviceId, int axis) const {
@@ -1130,22 +1129,20 @@
     return device->swState.test(sw) ? AKEY_STATE_DOWN : AKEY_STATE_UP;
 }
 
-status_t EventHub::getAbsoluteAxisValue(int32_t deviceId, int32_t axis, int32_t* outValue) const {
-    *outValue = 0;
+std::optional<int32_t> EventHub::getAbsoluteAxisValue(int32_t deviceId, int32_t axis) const {
     if (axis < 0 || axis > ABS_MAX) {
-        return NAME_NOT_FOUND;
+        return std::nullopt;
     }
     std::scoped_lock _l(mLock);
     const Device* device = getDeviceLocked(deviceId);
     if (device == nullptr || !device->hasValidFd()) {
-        return NAME_NOT_FOUND;
+        return std::nullopt;
     }
     const auto it = device->absState.find(axis);
     if (it == device->absState.end()) {
-        return NAME_NOT_FOUND;
+        return std::nullopt;
     }
-    *outValue = it->second.value;
-    return OK;
+    return it->second.value;
 }
 
 base::Result<std::vector<int32_t>> EventHub::getMtSlotValues(int32_t deviceId, int32_t axis,
@@ -1879,7 +1876,6 @@
                     .type = DEVICE_REMOVED,
             });
             it = mClosingDevices.erase(it);
-            mNeedToSendFinishedDeviceScan = true;
             if (events.size() == EVENT_BUFFER_SIZE) {
                 break;
             }
@@ -1888,7 +1884,6 @@
         if (mNeedToScanDevices) {
             mNeedToScanDevices = false;
             scanDevicesLocked();
-            mNeedToSendFinishedDeviceScan = true;
         }
 
         while (!mOpeningDevices.empty()) {
@@ -1917,18 +1912,6 @@
             if (!inserted) {
                 ALOGW("Device id %d exists, replaced.", device->id);
             }
-            mNeedToSendFinishedDeviceScan = true;
-            if (events.size() == EVENT_BUFFER_SIZE) {
-                break;
-            }
-        }
-
-        if (mNeedToSendFinishedDeviceScan) {
-            mNeedToSendFinishedDeviceScan = false;
-            events.push_back({
-                    .when = now,
-                    .type = FINISHED_DEVICE_SCAN,
-            });
             if (events.size() == EVENT_BUFFER_SIZE) {
                 break;
             }
@@ -2503,6 +2486,12 @@
         }
     }
 
+    // See if the device is a rotary encoder with a single scroll axis and nothing else.
+    if (vd_flags::virtual_rotary() && device->classes == ftl::Flags<InputDeviceClass>(0) &&
+        device->relBitmask.test(REL_WHEEL) && !device->relBitmask.test(REL_HWHEEL)) {
+        device->classes |= InputDeviceClass::ROTARY_ENCODER;
+    }
+
     // If the device isn't recognized as something we handle, don't monitor it.
     if (device->classes == ftl::Flags<InputDeviceClass>(0)) {
         ALOGV("Dropping device: id=%d, path='%s', name='%s'", deviceId, devicePath.c_str(),
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index ab13ad4..f0e53b5 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -180,6 +180,9 @@
         }
 
         if (oldGeneration != mGeneration) {
+            // Reset global meta state because it depends on connected input devices.
+            updateGlobalMetaStateLocked();
+
             inputDevicesChanged = true;
             inputDevices = getInputDevicesLocked();
             mPendingArgs.emplace_back(
@@ -247,9 +250,6 @@
                 case EventHubInterface::DEVICE_REMOVED:
                     removeDeviceLocked(rawEvent->when, rawEvent->deviceId);
                     break;
-                case EventHubInterface::FINISHED_DEVICE_SCAN:
-                    handleConfigurationChangedLocked(rawEvent->when);
-                    break;
                 default:
                     ALOG_ASSERT(false); // can't happen
                     break;
@@ -414,14 +414,6 @@
     return ++mNextInputDeviceId;
 }
 
-void InputReader::handleConfigurationChangedLocked(nsecs_t when) {
-    // Reset global meta state because it depends on the list of all configured devices.
-    updateGlobalMetaStateLocked();
-
-    // Enqueue configuration changed.
-    mPendingArgs.emplace_back(NotifyConfigurationChangedArgs{mContext.getNextId(), when});
-}
-
 void InputReader::refreshConfigurationLocked(ConfigurationChanges changes) {
     mPolicy->getReaderConfiguration(&mConfig);
     mEventHub->setExcludedDevices(mConfig.excludedDeviceNames);
@@ -907,6 +899,12 @@
     return mLastUsedDeviceId;
 }
 
+void InputReader::notifyMouseCursorFadedOnTyping() {
+    std::scoped_lock _l(mLock);
+    // disable touchpad taps when cursor has faded due to typing
+    mPreventingTouchpadTaps = true;
+}
+
 void InputReader::dump(std::string& dump) {
     std::scoped_lock _l(mLock);
 
diff --git a/services/inputflinger/reader/include/EventHub.h b/services/inputflinger/reader/include/EventHub.h
index 7cf584d..657126a 100644
--- a/services/inputflinger/reader/include/EventHub.h
+++ b/services/inputflinger/reader/include/EventHub.h
@@ -21,6 +21,7 @@
 #include <filesystem>
 #include <functional>
 #include <map>
+#include <optional>
 #include <ostream>
 #include <string>
 #include <unordered_map>
@@ -70,18 +71,14 @@
 
 /* Describes an absolute axis. */
 struct RawAbsoluteAxisInfo {
-    bool valid{false}; // true if the information is valid, false otherwise
-
     int32_t minValue{};   // minimum value
     int32_t maxValue{};   // maximum value
     int32_t flat{};       // center flat position, eg. flat == 8 means center is between -8 and 8
     int32_t fuzz{};       // error tolerance, eg. fuzz == 4 means value is +/- 4 due to noise
     int32_t resolution{}; // resolution in units per mm or radians per mm
-
-    inline void clear() { *this = RawAbsoluteAxisInfo(); }
 };
 
-std::ostream& operator<<(std::ostream& out, const RawAbsoluteAxisInfo& info);
+std::ostream& operator<<(std::ostream& out, const std::optional<RawAbsoluteAxisInfo>& info);
 
 /*
  * Input device classes.
@@ -257,9 +254,6 @@
         DEVICE_ADDED = 0x10000000,
         // Sent when a device is removed.
         DEVICE_REMOVED = 0x20000000,
-        // Sent when all added/removed devices from the most recent scan have been reported.
-        // This event is always sent at least once.
-        FINISHED_DEVICE_SCAN = 0x30000000,
 
         FIRST_SYNTHETIC_EVENT = DEVICE_ADDED,
     };
@@ -278,8 +272,8 @@
      */
     virtual std::optional<PropertyMap> getConfiguration(int32_t deviceId) const = 0;
 
-    virtual status_t getAbsoluteAxisInfo(int32_t deviceId, int axis,
-                                         RawAbsoluteAxisInfo* outAxisInfo) const = 0;
+    virtual std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t deviceId,
+                                                                   int axis) const = 0;
 
     virtual bool hasRelativeAxis(int32_t deviceId, int axis) const = 0;
 
@@ -339,8 +333,7 @@
     virtual int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const = 0;
     virtual int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const = 0;
     virtual int32_t getSwitchState(int32_t deviceId, int32_t sw) const = 0;
-    virtual status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis,
-                                          int32_t* outValue) const = 0;
+    virtual std::optional<int32_t> getAbsoluteAxisValue(int32_t deviceId, int32_t axis) const = 0;
     /* Query Multi-Touch slot values for an axis. Returns error or an 1 indexed array of size
      * (slotCount + 1). The value at the 0 index is set to queried axis. */
     virtual base::Result<std::vector<int32_t>> getMtSlotValues(int32_t deviceId, int32_t axis,
@@ -511,8 +504,8 @@
 
     std::optional<PropertyMap> getConfiguration(int32_t deviceId) const override final;
 
-    status_t getAbsoluteAxisInfo(int32_t deviceId, int axis,
-                                 RawAbsoluteAxisInfo* outAxisInfo) const override final;
+    std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t deviceId,
+                                                           int axis) const override final;
 
     bool hasRelativeAxis(int32_t deviceId, int axis) const override final;
 
@@ -559,8 +552,8 @@
     int32_t getSwitchState(int32_t deviceId, int32_t sw) const override final;
     int32_t getKeyCodeForKeyLocation(int32_t deviceId,
                                      int32_t locationKeyCode) const override final;
-    status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis,
-                                  int32_t* outValue) const override final;
+    std::optional<int32_t> getAbsoluteAxisValue(int32_t deviceId,
+                                                int32_t axis) const override final;
     base::Result<std::vector<int32_t>> getMtSlotValues(int32_t deviceId, int32_t axis,
                                                        size_t slotCount) const override final;
 
@@ -793,7 +786,6 @@
     std::vector<std::unique_ptr<Device>> mOpeningDevices;
     std::vector<std::unique_ptr<Device>> mClosingDevices;
 
-    bool mNeedToSendFinishedDeviceScan;
     bool mNeedToReopenDevices;
     bool mNeedToScanDevices;
     std::vector<std::string> mExcludedDevices;
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 4374ff5..93785f6 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -72,7 +72,7 @@
     inline std::optional<std::string> getDeviceTypeAssociation() const {
         return mAssociatedDeviceType;
     }
-    inline std::optional<DisplayViewport> getAssociatedViewport() const {
+    inline virtual std::optional<DisplayViewport> getAssociatedViewport() const {
         return mAssociatedViewport;
     }
     inline bool hasMic() const { return mHasMic; }
@@ -306,19 +306,17 @@
     inline int32_t getDeviceControllerNumber() const {
         return mEventHub->getDeviceControllerNumber(mId);
     }
-    inline status_t getAbsoluteAxisInfo(int32_t code, RawAbsoluteAxisInfo* axisInfo) const {
-        if (const auto status = mEventHub->getAbsoluteAxisInfo(mId, code, axisInfo); status != OK) {
-            return status;
-        }
+    inline std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t code) const {
+        std::optional<RawAbsoluteAxisInfo> info = mEventHub->getAbsoluteAxisInfo(mId, code);
 
         // Validate axis info for InputDevice.
-        if (axisInfo->valid && axisInfo->minValue == axisInfo->maxValue) {
+        if (info && info->minValue == info->maxValue) {
             // Historically, we deem axes with the same min and max values as invalid to avoid
             // dividing by zero when scaling by max - min.
             // TODO(b/291772515): Perform axis info validation on a per-axis basis when it is used.
-            axisInfo->valid = false;
+            return std::nullopt;
         }
-        return OK;
+        return info;
     }
     inline bool hasRelativeAxis(int32_t code) const {
         return mEventHub->hasRelativeAxis(mId, code);
@@ -380,8 +378,8 @@
         return mEventHub->getKeyCodeForKeyLocation(mId, locationKeyCode);
     }
     inline int32_t getSwitchState(int32_t sw) const { return mEventHub->getSwitchState(mId, sw); }
-    inline status_t getAbsoluteAxisValue(int32_t code, int32_t* outValue) const {
-        return mEventHub->getAbsoluteAxisValue(mId, code, outValue);
+    inline std::optional<int32_t> getAbsoluteAxisValue(int32_t code) const {
+        return mEventHub->getAbsoluteAxisValue(mId, code);
     }
     inline base::Result<std::vector<int32_t>> getMtSlotValues(int32_t axis,
                                                               size_t slotCount) const {
@@ -433,9 +431,7 @@
     }
 
     inline bool hasAbsoluteAxis(int32_t code) const {
-        RawAbsoluteAxisInfo info;
-        mEventHub->getAbsoluteAxisInfo(mId, code, &info);
-        return info.valid;
+        return mEventHub->getAbsoluteAxisInfo(mId, code).has_value();
     }
     inline bool isKeyPressed(int32_t scanCode) const {
         return mEventHub->getScanCodeState(mId, scanCode) == AKEY_STATE_DOWN;
@@ -443,11 +439,6 @@
     inline bool isKeyCodePressed(int32_t keyCode) const {
         return mEventHub->getKeyCodeState(mId, keyCode) == AKEY_STATE_DOWN;
     }
-    inline int32_t getAbsoluteAxisValue(int32_t code) const {
-        int32_t value;
-        mEventHub->getAbsoluteAxisValue(mId, code, &value);
-        return value;
-    }
     inline bool isDeviceEnabled() { return mEventHub->isDeviceEnabled(mId); }
     inline status_t enableDevice() { return mEventHub->enableDevice(mId); }
     inline status_t disableDevice() { return mEventHub->disableDevice(mId); }
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 6f8c289..4f60a8a 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -118,6 +118,8 @@
 
     DeviceId getLastUsedInputDeviceId() override;
 
+    void notifyMouseCursorFadedOnTyping() override;
+
 protected:
     // These members are protected so they can be instrumented by test cases.
     virtual std::shared_ptr<InputDevice> createDeviceLocked(nsecs_t when, int32_t deviceId,
@@ -199,7 +201,7 @@
     std::unordered_map<std::shared_ptr<InputDevice>, std::vector<int32_t> /*eventHubId*/>
             mDeviceToEventHubIdsMap GUARDED_BY(mLock);
 
-    // true if tap-to-click on touchpad currently disabled
+    // true if tap-to-click on touchpad is currently disabled
     bool mPreventingTouchpadTaps GUARDED_BY(mLock){false};
 
     // records timestamp of the last key press on the physical keyboard
@@ -219,8 +221,6 @@
                                                                      size_t count) REQUIRES(mLock);
     [[nodiscard]] std::list<NotifyArgs> timeoutExpiredLocked(nsecs_t when) REQUIRES(mLock);
 
-    void handleConfigurationChangedLocked(nsecs_t when) REQUIRES(mLock);
-
     int32_t mGlobalMetaState GUARDED_BY(mLock);
     void updateGlobalMetaStateLocked() REQUIRES(mLock);
     int32_t getGlobalMetaStateLocked() REQUIRES(mLock);
diff --git a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
index 90685de..c8e7790 100644
--- a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
+++ b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
@@ -16,6 +16,7 @@
 
 #include "CapturedTouchpadEventConverter.h"
 
+#include <optional>
 #include <sstream>
 
 #include <android-base/stringprintf.h>
@@ -53,32 +54,33 @@
         mMotionAccumulator(motionAccumulator),
         mHasTouchMinor(deviceContext.hasAbsoluteAxis(ABS_MT_TOUCH_MINOR)),
         mHasToolMinor(deviceContext.hasAbsoluteAxis(ABS_MT_WIDTH_MINOR)) {
-    RawAbsoluteAxisInfo orientationInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &orientationInfo);
-    if (orientationInfo.valid) {
-        if (orientationInfo.maxValue > 0) {
-            mOrientationScale = M_PI_2 / orientationInfo.maxValue;
-        } else if (orientationInfo.minValue < 0) {
-            mOrientationScale = -M_PI_2 / orientationInfo.minValue;
+    if (std::optional<RawAbsoluteAxisInfo> orientation =
+                deviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+        orientation) {
+        if (orientation->maxValue > 0) {
+            mOrientationScale = M_PI_2 / orientation->maxValue;
+        } else if (orientation->minValue < 0) {
+            mOrientationScale = -M_PI_2 / orientation->minValue;
         }
     }
 
     // TODO(b/275369880): support touch.pressure.calibration and .scale properties when captured.
-    RawAbsoluteAxisInfo pressureInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_PRESSURE, &pressureInfo);
-    if (pressureInfo.valid && pressureInfo.maxValue > 0) {
-        mPressureScale = 1.0 / pressureInfo.maxValue;
+    if (std::optional<RawAbsoluteAxisInfo> pressure =
+                deviceContext.getAbsoluteAxisInfo(ABS_MT_PRESSURE);
+        pressure && pressure->maxValue > 0) {
+        mPressureScale = 1.0 / pressure->maxValue;
     }
 
-    RawAbsoluteAxisInfo touchMajorInfo, toolMajorInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR, &touchMajorInfo);
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR, &toolMajorInfo);
-    mHasTouchMajor = touchMajorInfo.valid;
-    mHasToolMajor = toolMajorInfo.valid;
-    if (mHasTouchMajor && touchMajorInfo.maxValue != 0) {
-        mSizeScale = 1.0f / touchMajorInfo.maxValue;
-    } else if (mHasToolMajor && toolMajorInfo.maxValue != 0) {
-        mSizeScale = 1.0f / toolMajorInfo.maxValue;
+    std::optional<RawAbsoluteAxisInfo> touchMajor =
+            deviceContext.getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR);
+    std::optional<RawAbsoluteAxisInfo> toolMajor =
+            deviceContext.getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR);
+    mHasTouchMajor = touchMajor.has_value();
+    mHasToolMajor = toolMajor.has_value();
+    if (mHasTouchMajor && touchMajor->maxValue != 0) {
+        mSizeScale = 1.0f / touchMajor->maxValue;
+    } else if (mHasToolMajor && toolMajor->maxValue != 0) {
+        mSizeScale = 1.0f / toolMajor->maxValue;
     }
 }
 
@@ -113,15 +115,13 @@
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOOL_MAJOR, ABS_MT_WIDTH_MAJOR);
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOOL_MINOR, ABS_MT_WIDTH_MINOR);
 
-    RawAbsoluteAxisInfo pressureInfo;
-    mDeviceContext.getAbsoluteAxisInfo(ABS_MT_PRESSURE, &pressureInfo);
-    if (pressureInfo.valid) {
+    if (mDeviceContext.hasAbsoluteAxis(ABS_MT_PRESSURE)) {
         info.addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, SOURCE, 0, 1, 0, 0, 0);
     }
 
-    RawAbsoluteAxisInfo orientationInfo;
-    mDeviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &orientationInfo);
-    if (orientationInfo.valid && (orientationInfo.maxValue > 0 || orientationInfo.minValue < 0)) {
+    if (std::optional<RawAbsoluteAxisInfo> orientation =
+                mDeviceContext.getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+        orientation && (orientation->maxValue > 0 || orientation->minValue < 0)) {
         info.addMotionRange(AMOTION_EVENT_AXIS_ORIENTATION, SOURCE, -M_PI_2, M_PI_2, 0, 0, 0);
     }
 
@@ -133,11 +133,10 @@
 void CapturedTouchpadEventConverter::tryAddRawMotionRange(InputDeviceInfo& deviceInfo,
                                                           int32_t androidAxis,
                                                           int32_t evdevAxis) const {
-    RawAbsoluteAxisInfo info;
-    mDeviceContext.getAbsoluteAxisInfo(evdevAxis, &info);
-    if (info.valid) {
-        deviceInfo.addMotionRange(androidAxis, SOURCE, info.minValue, info.maxValue, info.flat,
-                                  info.fuzz, info.resolution);
+    std::optional<RawAbsoluteAxisInfo> info = mDeviceContext.getAbsoluteAxisInfo(evdevAxis);
+    if (info) {
+        deviceInfo.addMotionRange(androidAxis, SOURCE, info->minValue, info->maxValue, info->flat,
+                                  info->fuzz, info->resolution);
     }
 }
 
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.h b/services/inputflinger/reader/mapper/CursorInputMapper.h
index 2108488..3fc370c 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.h
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.h
@@ -25,9 +25,6 @@
 
 namespace android {
 
-class CursorButtonAccumulator;
-class CursorScrollAccumulator;
-
 /* Keeps track of cursor movements. */
 class CursorMotionAccumulator {
 public:
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
index 3af1d04..4cd37d7 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
@@ -33,7 +33,7 @@
 
 void ExternalStylusInputMapper::populateDeviceInfo(InputDeviceInfo& info) {
     InputMapper::populateDeviceInfo(info);
-    if (mRawPressureAxis.valid) {
+    if (mRawPressureAxis || mTouchButtonAccumulator.hasButtonTouch()) {
         info.addMotionRange(AMOTION_EVENT_AXIS_PRESSURE, AINPUT_SOURCE_STYLUS, 0.0f, 1.0f, 0.0f,
                             0.0f, 0.0f);
     }
@@ -50,7 +50,7 @@
 std::list<NotifyArgs> ExternalStylusInputMapper::reconfigure(nsecs_t when,
                                                              const InputReaderConfiguration& config,
                                                              ConfigurationChanges changes) {
-    getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPressureAxis);
+    mRawPressureAxis = getAbsoluteAxisInfo(ABS_PRESSURE);
     mTouchButtonAccumulator.configure();
     return {};
 }
@@ -82,10 +82,10 @@
         mStylusState.toolType = ToolType::STYLUS;
     }
 
-    if (mRawPressureAxis.valid) {
+    if (mRawPressureAxis) {
         auto rawPressure = static_cast<float>(mSingleTouchMotionAccumulator.getAbsolutePressure());
-        mStylusState.pressure = (rawPressure - mRawPressureAxis.minValue) /
-                static_cast<float>(mRawPressureAxis.maxValue - mRawPressureAxis.minValue);
+        mStylusState.pressure = (rawPressure - mRawPressureAxis->minValue) /
+                static_cast<float>(mRawPressureAxis->maxValue - mRawPressureAxis->minValue);
     } else if (mTouchButtonAccumulator.hasButtonTouch()) {
         mStylusState.pressure = mTouchButtonAccumulator.isHovering() ? 0.0f : 1.0f;
     }
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
index c040a7b..d48fd9b 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <optional>
+
 #include "InputMapper.h"
 
 #include "SingleTouchMotionAccumulator.h"
@@ -43,7 +45,7 @@
 
 private:
     SingleTouchMotionAccumulator mSingleTouchMotionAccumulator;
-    RawAbsoluteAxisInfo mRawPressureAxis;
+    std::optional<RawAbsoluteAxisInfo> mRawPressureAxis;
     TouchButtonAccumulator mTouchButtonAccumulator;
 
     StylusState mStylusState;
diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index b6c5c98..c44c48c 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp
@@ -18,6 +18,7 @@
 
 #include "InputMapper.h"
 
+#include <optional>
 #include <sstream>
 
 #include <ftl/enum.h>
@@ -116,15 +117,16 @@
     return {};
 }
 
-status_t InputMapper::getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo) {
-    return getDeviceContext().getAbsoluteAxisInfo(axis, axisInfo);
+std::optional<RawAbsoluteAxisInfo> InputMapper::getAbsoluteAxisInfo(int32_t axis) {
+    return getDeviceContext().getAbsoluteAxisInfo(axis);
 }
 
 void InputMapper::bumpGeneration() {
     getDeviceContext().bumpGeneration();
 }
 
-void InputMapper::dumpRawAbsoluteAxisInfo(std::string& dump, const RawAbsoluteAxisInfo& axis,
+void InputMapper::dumpRawAbsoluteAxisInfo(std::string& dump,
+                                          const std::optional<RawAbsoluteAxisInfo>& axis,
                                           const char* name) {
     std::stringstream out;
     out << INDENT4 << name << ": " << axis << "\n";
diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index 2c51448..e5afcc7 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <optional>
+
 #include "EventHub.h"
 #include "InputDevice.h"
 #include "InputListener.h"
@@ -126,10 +128,11 @@
     explicit InputMapper(InputDeviceContext& deviceContext,
                          const InputReaderConfiguration& readerConfig);
 
-    status_t getAbsoluteAxisInfo(int32_t axis, RawAbsoluteAxisInfo* axisInfo);
+    std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t axis);
     void bumpGeneration();
 
-    static void dumpRawAbsoluteAxisInfo(std::string& dump, const RawAbsoluteAxisInfo& axis,
+    static void dumpRawAbsoluteAxisInfo(std::string& dump,
+                                        const std::optional<RawAbsoluteAxisInfo>& axis,
                                         const char* name);
     static void dumpStylusState(std::string& dump, const StylusState& state);
 };
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index 41e018d..3091714 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -117,9 +117,8 @@
                 continue; // axis must be claimed by a different device
             }
 
-            RawAbsoluteAxisInfo rawAxisInfo;
-            getAbsoluteAxisInfo(abs, &rawAxisInfo);
-            if (rawAxisInfo.valid) {
+            if (std::optional<RawAbsoluteAxisInfo> rawAxisInfo = getAbsoluteAxisInfo(abs);
+                rawAxisInfo) {
                 // Map axis.
                 AxisInfo axisInfo;
                 const bool explicitlyMapped = !getDeviceContext().mapAxis(abs, &axisInfo);
@@ -129,7 +128,7 @@
                     axisInfo.mode = AxisInfo::MODE_NORMAL;
                     axisInfo.axis = -1;
                 }
-                mAxes.insert({abs, createAxis(axisInfo, rawAxisInfo, explicitlyMapped)});
+                mAxes.insert({abs, createAxis(axisInfo, rawAxisInfo.value(), explicitlyMapped)});
             }
         }
 
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index 8eb6730..38dcd65 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -493,12 +493,6 @@
 void KeyboardInputMapper::onKeyDownProcessed(nsecs_t downTime) {
     InputReaderContext& context = *getContext();
     context.setLastKeyDownTimestamp(downTime);
-    // Ignore meta keys or multiple simultaneous down keys as they are likely to be keyboard
-    // shortcuts
-    bool shouldHideCursor = mKeyDowns.size() == 1 && !isMetaKey(mKeyDowns[0].keyCode);
-    if (shouldHideCursor && context.getPolicy()->isInputMethodConnectionActive()) {
-        context.setPreventingTouchpadTaps(true);
-    }
 }
 
 uint32_t KeyboardInputMapper::getEventSource() const {
diff --git a/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp b/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
index 1986fe2..fd8224a 100644
--- a/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
@@ -133,7 +133,7 @@
 
         bool isHovering = mTouchButtonAccumulator.getToolType() != ToolType::MOUSE &&
                 (mTouchButtonAccumulator.isHovering() ||
-                 (mRawPointerAxes.pressure.valid && inSlot.getPressure() <= 0));
+                 (mRawPointerAxes.pressure && inSlot.getPressure() <= 0));
         outPointer.isHovering = isHovering;
 
         // Assign pointer id using tracking id if available.
@@ -189,21 +189,27 @@
 void MultiTouchInputMapper::configureRawPointerAxes() {
     TouchInputMapper::configureRawPointerAxes();
 
-    getAbsoluteAxisInfo(ABS_MT_POSITION_X, &mRawPointerAxes.x);
-    getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &mRawPointerAxes.y);
-    getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR, &mRawPointerAxes.touchMajor);
-    getAbsoluteAxisInfo(ABS_MT_TOUCH_MINOR, &mRawPointerAxes.touchMinor);
-    getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR, &mRawPointerAxes.toolMajor);
-    getAbsoluteAxisInfo(ABS_MT_WIDTH_MINOR, &mRawPointerAxes.toolMinor);
-    getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &mRawPointerAxes.orientation);
-    getAbsoluteAxisInfo(ABS_MT_PRESSURE, &mRawPointerAxes.pressure);
-    getAbsoluteAxisInfo(ABS_MT_DISTANCE, &mRawPointerAxes.distance);
-    getAbsoluteAxisInfo(ABS_MT_TRACKING_ID, &mRawPointerAxes.trackingId);
-    getAbsoluteAxisInfo(ABS_MT_SLOT, &mRawPointerAxes.slot);
+    // TODO(b/351870641): Investigate why we are sometime not getting valid axis infos for the x/y
+    //   axes, even though those axes are required to be supported.
+    if (const auto xInfo = getAbsoluteAxisInfo(ABS_MT_POSITION_X); xInfo.has_value()) {
+        mRawPointerAxes.x = *xInfo;
+    }
+    if (const auto yInfo = getAbsoluteAxisInfo(ABS_MT_POSITION_Y); yInfo.has_value()) {
+        mRawPointerAxes.y = *yInfo;
+    }
+    mRawPointerAxes.touchMajor = getAbsoluteAxisInfo(ABS_MT_TOUCH_MAJOR);
+    mRawPointerAxes.touchMinor = getAbsoluteAxisInfo(ABS_MT_TOUCH_MINOR);
+    mRawPointerAxes.toolMajor = getAbsoluteAxisInfo(ABS_MT_WIDTH_MAJOR);
+    mRawPointerAxes.toolMinor = getAbsoluteAxisInfo(ABS_MT_WIDTH_MINOR);
+    mRawPointerAxes.orientation = getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+    mRawPointerAxes.pressure = getAbsoluteAxisInfo(ABS_MT_PRESSURE);
+    mRawPointerAxes.distance = getAbsoluteAxisInfo(ABS_MT_DISTANCE);
+    mRawPointerAxes.trackingId = getAbsoluteAxisInfo(ABS_MT_TRACKING_ID);
+    mRawPointerAxes.slot = getAbsoluteAxisInfo(ABS_MT_SLOT);
 
-    if (mRawPointerAxes.trackingId.valid && mRawPointerAxes.slot.valid &&
-        mRawPointerAxes.slot.minValue == 0 && mRawPointerAxes.slot.maxValue > 0) {
-        size_t slotCount = mRawPointerAxes.slot.maxValue + 1;
+    if (mRawPointerAxes.trackingId && mRawPointerAxes.slot && mRawPointerAxes.slot->minValue == 0 &&
+        mRawPointerAxes.slot->maxValue > 0) {
+        size_t slotCount = mRawPointerAxes.slot->maxValue + 1;
         if (slotCount > MAX_SLOTS) {
             ALOGW("MultiTouch Device %s reported %zu slots but the framework "
                   "only supports a maximum of %zu slots at this time.",
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
index 27ff52f..b72cc6e 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
@@ -27,11 +27,14 @@
 
 namespace android {
 
+constexpr float kDefaultScaleFactor = 1.0f;
+
 RotaryEncoderInputMapper::RotaryEncoderInputMapper(InputDeviceContext& deviceContext,
                                                    const InputReaderConfiguration& readerConfig)
-      : InputMapper(deviceContext, readerConfig), mOrientation(ui::ROTATION_0) {
-    mSource = AINPUT_SOURCE_ROTARY_ENCODER;
-}
+      : InputMapper(deviceContext, readerConfig),
+        mSource(AINPUT_SOURCE_ROTARY_ENCODER),
+        mScalingFactor(kDefaultScaleFactor),
+        mOrientation(ui::ROTATION_0) {}
 
 RotaryEncoderInputMapper::~RotaryEncoderInputMapper() {}
 
@@ -51,9 +54,10 @@
         std::optional<float> scalingFactor = config.getFloat("device.scalingFactor");
         if (!scalingFactor.has_value()) {
             ALOGW("Rotary Encoder device configuration file didn't specify scaling factor,"
-                  "default to 1.0!\n");
+                  "default to %f!\n",
+                  kDefaultScaleFactor);
         }
-        mScalingFactor = scalingFactor.value_or(1.0f);
+        mScalingFactor = scalingFactor.value_or(kDefaultScaleFactor);
         info.addMotionRange(AMOTION_EVENT_AXIS_SCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f,
                             res.value_or(0.0f) * mScalingFactor);
     }
@@ -84,12 +88,18 @@
         }
     }
     if (!changes.any() || changes.test(InputReaderConfiguration::Change::DISPLAY_INFO)) {
-        std::optional<DisplayViewport> internalViewport =
-                config.getDisplayViewportByType(ViewportType::INTERNAL);
-        if (internalViewport) {
-            mOrientation = internalViewport->orientation;
+        if (getDeviceContext().getAssociatedViewport()) {
+            mDisplayId = getDeviceContext().getAssociatedViewport()->displayId;
+            mOrientation = getDeviceContext().getAssociatedViewport()->orientation;
         } else {
-            mOrientation = ui::ROTATION_0;
+            mDisplayId = ui::LogicalDisplayId::INVALID;
+            std::optional<DisplayViewport> internalViewport =
+                    config.getDisplayViewportByType(ViewportType::INTERNAL);
+            if (internalViewport) {
+                mOrientation = internalViewport->orientation;
+            } else {
+                mOrientation = ui::ROTATION_0;
+            }
         }
     }
     return out;
@@ -124,8 +134,6 @@
     // Send motion event.
     if (scrolled) {
         int32_t metaState = getContext()->getGlobalMetaState();
-        // This is not a pointer, so it's not associated with a display.
-        ui::LogicalDisplayId displayId = ui::LogicalDisplayId::INVALID;
 
         if (mOrientation == ui::ROTATION_180) {
             scroll = -scroll;
@@ -147,7 +155,7 @@
 
         out.push_back(
                 NotifyMotionArgs(getContext()->getNextId(), when, readTime, getDeviceId(), mSource,
-                                 displayId, policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0, 0,
+                                 mDisplayId, policyFlags, AMOTION_EVENT_ACTION_SCROLL, 0, 0,
                                  metaState, /*buttonState=*/0, MotionClassification::NONE,
                                  AMOTION_EVENT_EDGE_FLAG_NONE, 1, &pointerProperties,
                                  &pointerCoords, 0, 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
index 14c540b..7e80415 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
@@ -47,6 +47,7 @@
     int32_t mSource;
     float mScalingFactor;
     ui::Rotation mOrientation;
+    ui::LogicalDisplayId mDisplayId = ui::LogicalDisplayId::INVALID;
     std::unique_ptr<SlopController> mSlopController;
 
     explicit RotaryEncoderInputMapper(InputDeviceContext& deviceContext,
diff --git a/services/inputflinger/reader/mapper/SensorInputMapper.cpp b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
index d7f2993..4233f78 100644
--- a/services/inputflinger/reader/mapper/SensorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
@@ -133,9 +133,8 @@
                           .test(InputDeviceClass::SENSOR))) {
                 continue;
             }
-            RawAbsoluteAxisInfo rawAxisInfo;
-            getAbsoluteAxisInfo(abs, &rawAxisInfo);
-            if (rawAxisInfo.valid) {
+            if (std::optional<RawAbsoluteAxisInfo> rawAxisInfo = getAbsoluteAxisInfo(abs);
+                rawAxisInfo) {
                 AxisInfo axisInfo;
                 // Axis doesn't need to be mapped, as sensor mapper doesn't generate any motion
                 // input events
@@ -146,7 +145,7 @@
                 if (ret.ok()) {
                     InputDeviceSensorType sensorType = (*ret).first;
                     int32_t sensorDataIndex = (*ret).second;
-                    const Axis& axis = createAxis(axisInfo, rawAxisInfo);
+                    const Axis& axis = createAxis(axisInfo, rawAxisInfo.value());
                     parseSensorConfiguration(sensorType, abs, sensorDataIndex, axis);
 
                     mAxes.insert({abs, axis});
diff --git a/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp b/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp
index 140bb0c..cef1837 100644
--- a/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SingleTouchInputMapper.cpp
@@ -44,7 +44,7 @@
 
         bool isHovering = mTouchButtonAccumulator.getToolType() != ToolType::MOUSE &&
                 (mTouchButtonAccumulator.isHovering() ||
-                 (mRawPointerAxes.pressure.valid &&
+                 (mRawPointerAxes.pressure &&
                   mSingleTouchMotionAccumulator.getAbsolutePressure() <= 0));
         outState->rawPointerData.markIdBit(0, isHovering);
 
@@ -72,13 +72,19 @@
 void SingleTouchInputMapper::configureRawPointerAxes() {
     TouchInputMapper::configureRawPointerAxes();
 
-    getAbsoluteAxisInfo(ABS_X, &mRawPointerAxes.x);
-    getAbsoluteAxisInfo(ABS_Y, &mRawPointerAxes.y);
-    getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPointerAxes.pressure);
-    getAbsoluteAxisInfo(ABS_TOOL_WIDTH, &mRawPointerAxes.toolMajor);
-    getAbsoluteAxisInfo(ABS_DISTANCE, &mRawPointerAxes.distance);
-    getAbsoluteAxisInfo(ABS_TILT_X, &mRawPointerAxes.tiltX);
-    getAbsoluteAxisInfo(ABS_TILT_Y, &mRawPointerAxes.tiltY);
+    // TODO(b/351870641): Investigate why we are sometime not getting valid axis infos for the x/y
+    //   axes, even though those axes are required to be supported.
+    if (const auto xInfo = getAbsoluteAxisInfo(ABS_X); xInfo.has_value()) {
+        mRawPointerAxes.x = *xInfo;
+    }
+    if (const auto yInfo = getAbsoluteAxisInfo(ABS_Y); yInfo.has_value()) {
+        mRawPointerAxes.y = *yInfo;
+    }
+    mRawPointerAxes.pressure = getAbsoluteAxisInfo(ABS_PRESSURE);
+    mRawPointerAxes.toolMajor = getAbsoluteAxisInfo(ABS_TOOL_WIDTH);
+    mRawPointerAxes.distance = getAbsoluteAxisInfo(ABS_DISTANCE);
+    mRawPointerAxes.tiltX = getAbsoluteAxisInfo(ABS_TILT_X);
+    mRawPointerAxes.tiltY = getAbsoluteAxisInfo(ABS_TILT_Y);
 }
 
 bool SingleTouchInputMapper::hasStylus() const {
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index a383490..5c90cbb 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -149,7 +149,10 @@
     // The SOURCE_BLUETOOTH_STYLUS is added to events dynamically if the current stream is modified
     // by the external stylus state. That's why we don't add it directly to mSource during
     // configuration.
-    return mSource | (hasExternalStylus() ? AINPUT_SOURCE_BLUETOOTH_STYLUS : 0);
+    return mSource |
+            (mExternalStylusPresence == ExternalStylusPresence::TOUCH_FUSION
+                     ? AINPUT_SOURCE_BLUETOOTH_STYLUS
+                     : 0);
 }
 
 void TouchInputMapper::populateDeviceInfo(InputDeviceInfo& info) {
@@ -270,8 +273,8 @@
     }
 
     dump += INDENT3 "Stylus Fusion:\n";
-    dump += StringPrintf(INDENT4 "ExternalStylusConnected: %s\n",
-                         toString(mExternalStylusConnected));
+    dump += StringPrintf(INDENT4 "ExternalStylusPresence: %s\n",
+                         ftl::enum_string(mExternalStylusPresence).c_str());
     dump += StringPrintf(INDENT4 "Fused External Stylus Pointer ID: %s\n",
                          toString(mFusedStylusPointerId).c_str());
     dump += StringPrintf(INDENT4 "External Stylus Data Timeout: %" PRId64 "\n",
@@ -356,11 +359,19 @@
 void TouchInputMapper::resolveExternalStylusPresence() {
     std::vector<InputDeviceInfo> devices;
     getContext()->getExternalStylusDevices(devices);
-    mExternalStylusConnected = !devices.empty();
-
-    if (!mExternalStylusConnected) {
+    if (devices.empty()) {
+        mExternalStylusPresence = ExternalStylusPresence::NONE;
         resetExternalStylus();
+        return;
     }
+    mExternalStylusPresence =
+            std::any_of(devices.begin(), devices.end(),
+                        [](const auto& info) {
+                            return info.getMotionRange(AMOTION_EVENT_AXIS_PRESSURE,
+                                                       AINPUT_SOURCE_STYLUS) != nullptr;
+                        })
+            ? ExternalStylusPresence::TOUCH_FUSION
+            : ExternalStylusPresence::BUTTON_FUSION;
 }
 
 TouchInputMapper::Parameters TouchInputMapper::computeParameters(
@@ -520,7 +531,7 @@
 }
 
 bool TouchInputMapper::hasExternalStylus() const {
-    return mExternalStylusConnected;
+    return mExternalStylusPresence != ExternalStylusPresence::NONE;
 }
 
 /**
@@ -600,10 +611,10 @@
     const float diagonalSize = hypotf(mDisplayBounds.width, mDisplayBounds.height);
 
     // Size factors.
-    if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.touchMajor.maxValue != 0) {
-        mSizeScale = 1.0f / mRawPointerAxes.touchMajor.maxValue;
-    } else if (mRawPointerAxes.toolMajor.valid && mRawPointerAxes.toolMajor.maxValue != 0) {
-        mSizeScale = 1.0f / mRawPointerAxes.toolMajor.maxValue;
+    if (mRawPointerAxes.touchMajor && mRawPointerAxes.touchMajor->maxValue != 0) {
+        mSizeScale = 1.0f / mRawPointerAxes.touchMajor->maxValue;
+    } else if (mRawPointerAxes.toolMajor && mRawPointerAxes.toolMajor->maxValue != 0) {
+        mSizeScale = 1.0f / mRawPointerAxes.toolMajor->maxValue;
     } else {
         mSizeScale = 0.0f;
     }
@@ -618,18 +629,18 @@
             .resolution = 0,
     };
 
-    if (mRawPointerAxes.touchMajor.valid) {
-        mRawPointerAxes.touchMajor.resolution =
-                clampResolution("touchMajor", mRawPointerAxes.touchMajor.resolution);
-        mOrientedRanges.touchMajor->resolution = mRawPointerAxes.touchMajor.resolution;
+    if (mRawPointerAxes.touchMajor) {
+        mRawPointerAxes.touchMajor->resolution =
+                clampResolution("touchMajor", mRawPointerAxes.touchMajor->resolution);
+        mOrientedRanges.touchMajor->resolution = mRawPointerAxes.touchMajor->resolution;
     }
 
     mOrientedRanges.touchMinor = mOrientedRanges.touchMajor;
     mOrientedRanges.touchMinor->axis = AMOTION_EVENT_AXIS_TOUCH_MINOR;
-    if (mRawPointerAxes.touchMinor.valid) {
-        mRawPointerAxes.touchMinor.resolution =
-                clampResolution("touchMinor", mRawPointerAxes.touchMinor.resolution);
-        mOrientedRanges.touchMinor->resolution = mRawPointerAxes.touchMinor.resolution;
+    if (mRawPointerAxes.touchMinor) {
+        mRawPointerAxes.touchMinor->resolution =
+                clampResolution("touchMinor", mRawPointerAxes.touchMinor->resolution);
+        mOrientedRanges.touchMinor->resolution = mRawPointerAxes.touchMinor->resolution;
     }
 
     mOrientedRanges.toolMajor = InputDeviceInfo::MotionRange{
@@ -641,18 +652,18 @@
             .fuzz = 0,
             .resolution = 0,
     };
-    if (mRawPointerAxes.toolMajor.valid) {
-        mRawPointerAxes.toolMajor.resolution =
-                clampResolution("toolMajor", mRawPointerAxes.toolMajor.resolution);
-        mOrientedRanges.toolMajor->resolution = mRawPointerAxes.toolMajor.resolution;
+    if (mRawPointerAxes.toolMajor) {
+        mRawPointerAxes.toolMajor->resolution =
+                clampResolution("toolMajor", mRawPointerAxes.toolMajor->resolution);
+        mOrientedRanges.toolMajor->resolution = mRawPointerAxes.toolMajor->resolution;
     }
 
     mOrientedRanges.toolMinor = mOrientedRanges.toolMajor;
     mOrientedRanges.toolMinor->axis = AMOTION_EVENT_AXIS_TOOL_MINOR;
-    if (mRawPointerAxes.toolMinor.valid) {
-        mRawPointerAxes.toolMinor.resolution =
-                clampResolution("toolMinor", mRawPointerAxes.toolMinor.resolution);
-        mOrientedRanges.toolMinor->resolution = mRawPointerAxes.toolMinor.resolution;
+    if (mRawPointerAxes.toolMinor) {
+        mRawPointerAxes.toolMinor->resolution =
+                clampResolution("toolMinor", mRawPointerAxes.toolMinor->resolution);
+        mOrientedRanges.toolMinor->resolution = mRawPointerAxes.toolMinor->resolution;
     }
 
     if (mCalibration.sizeCalibration == Calibration::SizeCalibration::GEOMETRIC) {
@@ -704,9 +715,10 @@
         mCalibration.pressureCalibration == Calibration::PressureCalibration::AMPLITUDE) {
         if (mCalibration.pressureScale) {
             mPressureScale = *mCalibration.pressureScale;
-            pressureMax = mPressureScale * mRawPointerAxes.pressure.maxValue;
-        } else if (mRawPointerAxes.pressure.valid && mRawPointerAxes.pressure.maxValue != 0) {
-            mPressureScale = 1.0f / mRawPointerAxes.pressure.maxValue;
+            pressureMax = mPressureScale *
+                    (mRawPointerAxes.pressure ? mRawPointerAxes.pressure->maxValue : 0);
+        } else if (mRawPointerAxes.pressure && mRawPointerAxes.pressure->maxValue != 0) {
+            mPressureScale = 1.0f / mRawPointerAxes.pressure->maxValue;
         }
     }
 
@@ -725,18 +737,18 @@
     mTiltXScale = 0;
     mTiltYCenter = 0;
     mTiltYScale = 0;
-    mHaveTilt = mRawPointerAxes.tiltX.valid && mRawPointerAxes.tiltY.valid;
+    mHaveTilt = mRawPointerAxes.tiltX && mRawPointerAxes.tiltY;
     if (mHaveTilt) {
-        mTiltXCenter = avg(mRawPointerAxes.tiltX.minValue, mRawPointerAxes.tiltX.maxValue);
-        mTiltYCenter = avg(mRawPointerAxes.tiltY.minValue, mRawPointerAxes.tiltY.maxValue);
+        mTiltXCenter = avg(mRawPointerAxes.tiltX->minValue, mRawPointerAxes.tiltX->maxValue);
+        mTiltYCenter = avg(mRawPointerAxes.tiltY->minValue, mRawPointerAxes.tiltY->maxValue);
         mTiltXScale = M_PI / 180;
         mTiltYScale = M_PI / 180;
 
-        if (mRawPointerAxes.tiltX.resolution) {
-            mTiltXScale = 1.0 / mRawPointerAxes.tiltX.resolution;
+        if (mRawPointerAxes.tiltX->resolution) {
+            mTiltXScale = 1.0 / mRawPointerAxes.tiltX->resolution;
         }
-        if (mRawPointerAxes.tiltY.resolution) {
-            mTiltYScale = 1.0 / mRawPointerAxes.tiltY.resolution;
+        if (mRawPointerAxes.tiltY->resolution) {
+            mTiltYScale = 1.0 / mRawPointerAxes.tiltY->resolution;
         }
 
         mOrientedRanges.tilt = InputDeviceInfo::MotionRange{
@@ -766,11 +778,11 @@
     } else if (mCalibration.orientationCalibration != Calibration::OrientationCalibration::NONE) {
         if (mCalibration.orientationCalibration ==
             Calibration::OrientationCalibration::INTERPOLATED) {
-            if (mRawPointerAxes.orientation.valid) {
-                if (mRawPointerAxes.orientation.maxValue > 0) {
-                    mOrientationScale = M_PI_2 / mRawPointerAxes.orientation.maxValue;
-                } else if (mRawPointerAxes.orientation.minValue < 0) {
-                    mOrientationScale = -M_PI_2 / mRawPointerAxes.orientation.minValue;
+            if (mRawPointerAxes.orientation) {
+                if (mRawPointerAxes.orientation->maxValue > 0) {
+                    mOrientationScale = M_PI_2 / mRawPointerAxes.orientation->maxValue;
+                } else if (mRawPointerAxes.orientation->minValue < 0) {
+                    mOrientationScale = -M_PI_2 / mRawPointerAxes.orientation->minValue;
                 } else {
                     mOrientationScale = 0;
                 }
@@ -795,14 +807,14 @@
             mDistanceScale = mCalibration.distanceScale.value_or(1.0f);
         }
 
+        const bool hasDistance = mRawPointerAxes.distance.has_value();
         mOrientedRanges.distance = InputDeviceInfo::MotionRange{
-
                 .axis = AMOTION_EVENT_AXIS_DISTANCE,
                 .source = mSource,
-                .min = mRawPointerAxes.distance.minValue * mDistanceScale,
-                .max = mRawPointerAxes.distance.maxValue * mDistanceScale,
+                .min = hasDistance ? mRawPointerAxes.distance->minValue * mDistanceScale : 0,
+                .max = hasDistance ? mRawPointerAxes.distance->maxValue * mDistanceScale : 0,
                 .flat = 0,
-                .fuzz = mRawPointerAxes.distance.fuzz * mDistanceScale,
+                .fuzz = hasDistance ? mRawPointerAxes.distance->fuzz * mDistanceScale : 0,
                 .resolution = 0,
         };
     }
@@ -931,7 +943,7 @@
             mSource |= AINPUT_SOURCE_STYLUS;
         }
     } else if (mParameters.deviceType == Parameters::DeviceType::TOUCH_NAVIGATION) {
-        mSource = AINPUT_SOURCE_TOUCH_NAVIGATION;
+        mSource = AINPUT_SOURCE_TOUCH_NAVIGATION | AINPUT_SOURCE_TOUCHPAD;
         mDeviceMode = DeviceMode::NAVIGATION;
     } else {
         ALOGW("Touch device '%s' has invalid parameters or configuration.  The device will be "
@@ -943,12 +955,7 @@
     const std::optional<DisplayViewport> newViewportOpt = findViewport();
 
     // Ensure the device is valid and can be used.
-    if (!mRawPointerAxes.x.valid || !mRawPointerAxes.y.valid) {
-        ALOGW("Touch device '%s' did not report support for X or Y axis!  "
-              "The device will be inoperable.",
-              getDeviceName().c_str());
-        mDeviceMode = DeviceMode::DISABLED;
-    } else if (!newViewportOpt) {
+    if (!newViewportOpt) {
         ALOGI("Touch device '%s' could not query the properties of its associated "
               "display.  The device will be inoperable until the display size "
               "becomes available.",
@@ -981,8 +988,9 @@
         viewportChanged = mViewport != newViewport;
     }
 
+    const bool deviceModeChanged = mDeviceMode != oldDeviceMode;
     bool skipViewportUpdate = false;
-    if (viewportChanged) {
+    if (viewportChanged || deviceModeChanged) {
         const bool viewportOrientationChanged = mViewport.orientation != newViewport.orientation;
         const bool viewportDisplayIdChanged = mViewport.displayId != newViewport.displayId;
         mViewport = newViewport;
@@ -1024,7 +1032,6 @@
     }
 
     // If moving between pointer modes, need to reset some state.
-    bool deviceModeChanged = mDeviceMode != oldDeviceMode;
     if (deviceModeChanged) {
         mOrientedRanges.clear();
     }
@@ -1237,7 +1244,7 @@
 
 void TouchInputMapper::resolveCalibration() {
     // Size
-    if (mRawPointerAxes.touchMajor.valid || mRawPointerAxes.toolMajor.valid) {
+    if (mRawPointerAxes.touchMajor || mRawPointerAxes.toolMajor) {
         if (mCalibration.sizeCalibration == Calibration::SizeCalibration::DEFAULT) {
             mCalibration.sizeCalibration = Calibration::SizeCalibration::GEOMETRIC;
         }
@@ -1246,7 +1253,7 @@
     }
 
     // Pressure
-    if (mRawPointerAxes.pressure.valid) {
+    if (mRawPointerAxes.pressure) {
         if (mCalibration.pressureCalibration == Calibration::PressureCalibration::DEFAULT) {
             mCalibration.pressureCalibration = Calibration::PressureCalibration::PHYSICAL;
         }
@@ -1255,7 +1262,7 @@
     }
 
     // Orientation
-    if (mRawPointerAxes.orientation.valid) {
+    if (mRawPointerAxes.orientation) {
         if (mCalibration.orientationCalibration == Calibration::OrientationCalibration::DEFAULT) {
             mCalibration.orientationCalibration = Calibration::OrientationCalibration::INTERPOLATED;
         }
@@ -1264,7 +1271,7 @@
     }
 
     // Distance
-    if (mRawPointerAxes.distance.valid) {
+    if (mRawPointerAxes.distance) {
         if (mCalibration.distanceCalibration == Calibration::DistanceCalibration::DEFAULT) {
             mCalibration.distanceCalibration = Calibration::DistanceCalibration::SCALED;
         }
@@ -2251,25 +2258,25 @@
             case Calibration::SizeCalibration::DIAMETER:
             case Calibration::SizeCalibration::BOX:
             case Calibration::SizeCalibration::AREA:
-                if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.toolMajor.valid) {
+                if (mRawPointerAxes.touchMajor && mRawPointerAxes.toolMajor) {
                     touchMajor = in.touchMajor;
-                    touchMinor = mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor;
+                    touchMinor = mRawPointerAxes.touchMinor ? in.touchMinor : in.touchMajor;
                     toolMajor = in.toolMajor;
-                    toolMinor = mRawPointerAxes.toolMinor.valid ? in.toolMinor : in.toolMajor;
-                    size = mRawPointerAxes.touchMinor.valid ? avg(in.touchMajor, in.touchMinor)
-                                                            : in.touchMajor;
-                } else if (mRawPointerAxes.touchMajor.valid) {
+                    toolMinor = mRawPointerAxes.toolMinor ? in.toolMinor : in.toolMajor;
+                    size = mRawPointerAxes.touchMinor ? avg(in.touchMajor, in.touchMinor)
+                                                      : in.touchMajor;
+                } else if (mRawPointerAxes.touchMajor) {
                     toolMajor = touchMajor = in.touchMajor;
                     toolMinor = touchMinor =
-                            mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor;
-                    size = mRawPointerAxes.touchMinor.valid ? avg(in.touchMajor, in.touchMinor)
-                                                            : in.touchMajor;
-                } else if (mRawPointerAxes.toolMajor.valid) {
+                            mRawPointerAxes.touchMinor ? in.touchMinor : in.touchMajor;
+                    size = mRawPointerAxes.touchMinor ? avg(in.touchMajor, in.touchMinor)
+                                                      : in.touchMajor;
+                } else if (mRawPointerAxes.toolMajor) {
                     touchMajor = toolMajor = in.toolMajor;
                     touchMinor = toolMinor =
-                            mRawPointerAxes.toolMinor.valid ? in.toolMinor : in.toolMajor;
-                    size = mRawPointerAxes.toolMinor.valid ? avg(in.toolMajor, in.toolMinor)
-                                                           : in.toolMajor;
+                            mRawPointerAxes.toolMinor ? in.toolMinor : in.toolMajor;
+                    size = mRawPointerAxes.toolMinor ? avg(in.toolMajor, in.toolMinor)
+                                                     : in.toolMajor;
                 } else {
                     ALOG_ASSERT(false,
                                 "No touch or tool axes.  "
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index 30c58a5..ef0e02f 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -61,17 +61,17 @@
 struct RawPointerAxes {
     RawAbsoluteAxisInfo x{};
     RawAbsoluteAxisInfo y{};
-    RawAbsoluteAxisInfo pressure{};
-    RawAbsoluteAxisInfo touchMajor{};
-    RawAbsoluteAxisInfo touchMinor{};
-    RawAbsoluteAxisInfo toolMajor{};
-    RawAbsoluteAxisInfo toolMinor{};
-    RawAbsoluteAxisInfo orientation{};
-    RawAbsoluteAxisInfo distance{};
-    RawAbsoluteAxisInfo tiltX{};
-    RawAbsoluteAxisInfo tiltY{};
-    RawAbsoluteAxisInfo trackingId{};
-    RawAbsoluteAxisInfo slot{};
+    std::optional<RawAbsoluteAxisInfo> pressure{};
+    std::optional<RawAbsoluteAxisInfo> touchMajor{};
+    std::optional<RawAbsoluteAxisInfo> touchMinor{};
+    std::optional<RawAbsoluteAxisInfo> toolMajor{};
+    std::optional<RawAbsoluteAxisInfo> toolMinor{};
+    std::optional<RawAbsoluteAxisInfo> orientation{};
+    std::optional<RawAbsoluteAxisInfo> distance{};
+    std::optional<RawAbsoluteAxisInfo> tiltX{};
+    std::optional<RawAbsoluteAxisInfo> tiltY{};
+    std::optional<RawAbsoluteAxisInfo> trackingId{};
+    std::optional<RawAbsoluteAxisInfo> slot{};
 
     inline int32_t getRawWidth() const { return x.maxValue - x.minValue + 1; }
     inline int32_t getRawHeight() const { return y.maxValue - y.minValue + 1; }
@@ -339,8 +339,8 @@
         int32_t buttonState{};
 
         // Scroll state.
-        int32_t rawVScroll{};
-        int32_t rawHScroll{};
+        float rawVScroll{};
+        float rawHScroll{};
 
         inline void clear() { *this = RawState(); }
     };
@@ -365,6 +365,16 @@
     RawState mLastRawState;
     CookedState mLastCookedState;
 
+    enum class ExternalStylusPresence {
+        // No external stylus connected.
+        NONE,
+        // An external stylus that can report touch/pressure that can be fused with the touchscreen.
+        TOUCH_FUSION,
+        // An external stylus that can only report buttons.
+        BUTTON_FUSION,
+        ftl_last = BUTTON_FUSION,
+    };
+    ExternalStylusPresence mExternalStylusPresence{ExternalStylusPresence::NONE};
     // State provided by an external stylus
     StylusState mExternalStylusState;
     // If an external stylus is capable of reporting pointer-specific data like pressure, we will
@@ -460,8 +470,6 @@
     float mTiltYCenter;
     float mTiltYScale;
 
-    bool mExternalStylusConnected;
-
     // Oriented motion ranges for input device info.
     struct OrientedRanges {
         InputDeviceInfo::MotionRange x;
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index 24efae8..5c5fd3f 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
@@ -240,14 +240,15 @@
         mGestureConverter(*getContext(), deviceContext, getDeviceId()),
         mCapturedEventConverter(*getContext(), deviceContext, mMotionAccumulator, getDeviceId()),
         mMetricsId(metricsIdFromInputDeviceIdentifier(deviceContext.getDeviceIdentifier())) {
-    RawAbsoluteAxisInfo slotAxisInfo;
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_SLOT, &slotAxisInfo);
-    if (!slotAxisInfo.valid || slotAxisInfo.maxValue < 0) {
+    if (std::optional<RawAbsoluteAxisInfo> slotAxis =
+                deviceContext.getAbsoluteAxisInfo(ABS_MT_SLOT);
+        slotAxis && slotAxis->maxValue >= 0) {
+        mMotionAccumulator.configure(deviceContext, slotAxis->maxValue + 1, true);
+    } else {
         LOG(WARNING) << "Touchpad " << deviceContext.getName()
                      << " doesn't have a valid ABS_MT_SLOT axis, and probably won't work properly.";
-        slotAxisInfo.maxValue = 0;
+        mMotionAccumulator.configure(deviceContext, 1, true);
     }
-    mMotionAccumulator.configure(deviceContext, slotAxisInfo.maxValue + 1, true);
 
     mGestureInterpreter->Initialize(GESTURES_DEVCLASS_TOUCHPAD);
     mGestureInterpreter->SetHardwareProperties(createHardwareProperties(deviceContext));
@@ -257,11 +258,9 @@
     // 2) TouchpadInputMapper is stored as a unique_ptr and not moved.
     mGestureInterpreter->SetPropProvider(const_cast<GesturesPropProvider*>(&gesturePropProvider),
                                          &mPropertyProvider);
-    if (input_flags::enable_gestures_library_timer_provider()) {
-        mGestureInterpreter->SetTimerProvider(const_cast<GesturesTimerProvider*>(
-                                                      &kGestureTimerProvider),
-                                              &mTimerProvider);
-    }
+    mGestureInterpreter->SetTimerProvider(const_cast<GesturesTimerProvider*>(
+                                                  &kGestureTimerProvider),
+                                          &mTimerProvider);
     mGestureInterpreter->SetCallback(gestureInterpreterCallback, this);
 }
 
@@ -299,12 +298,8 @@
     dump += addLinePrefix(mGestureConverter.dump(), INDENT4);
     dump += INDENT3 "Gesture properties:\n";
     dump += addLinePrefix(mPropertyProvider.dump(), INDENT4);
-    if (input_flags::enable_gestures_library_timer_provider()) {
-        dump += INDENT3 "Timer provider:\n";
-        dump += addLinePrefix(mTimerProvider.dump(), INDENT4);
-    } else {
-        dump += INDENT3 "Timer provider: disabled by flag\n";
-    }
+    dump += INDENT3 "Timer provider:\n";
+    dump += addLinePrefix(mTimerProvider.dump(), INDENT4);
     dump += INDENT3 "Captured event converter:\n";
     dump += addLinePrefix(mCapturedEventConverter.dump(), INDENT4);
     dump += StringPrintf(INDENT3 "DisplayId: %s\n",
@@ -467,9 +462,6 @@
 }
 
 std::list<NotifyArgs> TouchpadInputMapper::timeoutExpired(nsecs_t when) {
-    if (!input_flags::enable_gestures_library_timer_provider()) {
-        return {};
-    }
     mTimerProvider.triggerCallbacks(when);
     return processGestures(when, when);
 }
diff --git a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp
index f85cab2..5373440 100644
--- a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp
+++ b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.cpp
@@ -16,18 +16,29 @@
 
 #include "CursorScrollAccumulator.h"
 
+#include <android_companion_virtualdevice_flags.h>
 #include "EventHub.h"
 #include "InputDevice.h"
 
 namespace android {
 
-CursorScrollAccumulator::CursorScrollAccumulator() : mHaveRelWheel(false), mHaveRelHWheel(false) {
+namespace vd_flags = android::companion::virtualdevice::flags;
+
+CursorScrollAccumulator::CursorScrollAccumulator()
+      : mHaveRelWheel(false),
+        mHaveRelHWheel(false),
+        mHaveRelWheelHighRes(false),
+        mHaveRelHWheelHighRes(false) {
     clearRelativeAxes();
 }
 
 void CursorScrollAccumulator::configure(InputDeviceContext& deviceContext) {
     mHaveRelWheel = deviceContext.hasRelativeAxis(REL_WHEEL);
     mHaveRelHWheel = deviceContext.hasRelativeAxis(REL_HWHEEL);
+    if (vd_flags::high_resolution_scroll()) {
+        mHaveRelWheelHighRes = deviceContext.hasRelativeAxis(REL_WHEEL_HI_RES);
+        mHaveRelHWheelHighRes = deviceContext.hasRelativeAxis(REL_HWHEEL_HI_RES);
+    }
 }
 
 void CursorScrollAccumulator::reset(InputDeviceContext& deviceContext) {
@@ -42,11 +53,31 @@
 void CursorScrollAccumulator::process(const RawEvent& rawEvent) {
     if (rawEvent.type == EV_REL) {
         switch (rawEvent.code) {
+            case REL_WHEEL_HI_RES:
+                if (mHaveRelWheelHighRes) {
+                    mRelWheel =
+                            rawEvent.value / static_cast<float>(kEvdevHighResScrollUnitsPerDetent);
+                }
+                break;
+            case REL_HWHEEL_HI_RES:
+                if (mHaveRelHWheelHighRes) {
+                    mRelHWheel =
+                            rawEvent.value / static_cast<float>(kEvdevHighResScrollUnitsPerDetent);
+                }
+                break;
             case REL_WHEEL:
-                mRelWheel = rawEvent.value;
+                // We should ignore regular scroll events, if we have already have high-res scroll
+                // enabled.
+                if (!mHaveRelWheelHighRes) {
+                    mRelWheel = rawEvent.value;
+                }
                 break;
             case REL_HWHEEL:
-                mRelHWheel = rawEvent.value;
+                // We should ignore regular scroll events, if we have already have high-res scroll
+                // enabled.
+                if (!mHaveRelHWheelHighRes) {
+                    mRelHWheel = rawEvent.value;
+                }
                 break;
         }
     }
diff --git a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h
index e563620..d3373cc 100644
--- a/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h
+++ b/services/inputflinger/reader/mapper/accumulator/CursorScrollAccumulator.h
@@ -16,15 +16,12 @@
 
 #pragma once
 
-#include <stdint.h>
-
 namespace android {
 
 class InputDeviceContext;
 struct RawEvent;
 
 /* Keeps track of cursor scrolling motions. */
-
 class CursorScrollAccumulator {
 public:
     CursorScrollAccumulator();
@@ -37,19 +34,17 @@
     inline bool haveRelativeVWheel() const { return mHaveRelWheel; }
     inline bool haveRelativeHWheel() const { return mHaveRelHWheel; }
 
-    inline int32_t getRelativeX() const { return mRelX; }
-    inline int32_t getRelativeY() const { return mRelY; }
-    inline int32_t getRelativeVWheel() const { return mRelWheel; }
-    inline int32_t getRelativeHWheel() const { return mRelHWheel; }
+    inline float getRelativeVWheel() const { return mRelWheel; }
+    inline float getRelativeHWheel() const { return mRelHWheel; }
 
 private:
     bool mHaveRelWheel;
     bool mHaveRelHWheel;
+    bool mHaveRelWheelHighRes;
+    bool mHaveRelHWheelHighRes;
 
-    int32_t mRelX;
-    int32_t mRelY;
-    int32_t mRelWheel;
-    int32_t mRelHWheel;
+    float mRelWheel;
+    float mRelHWheel;
 
     void clearRelativeAxes();
 };
diff --git a/services/inputflinger/reader/mapper/accumulator/MultiTouchMotionAccumulator.cpp b/services/inputflinger/reader/mapper/accumulator/MultiTouchMotionAccumulator.cpp
index 4919068..8dc6e4d 100644
--- a/services/inputflinger/reader/mapper/accumulator/MultiTouchMotionAccumulator.cpp
+++ b/services/inputflinger/reader/mapper/accumulator/MultiTouchMotionAccumulator.cpp
@@ -139,13 +139,11 @@
     if (!mUsingSlotsProtocol) {
         return;
     }
-    int32_t initialSlot;
-    if (const auto status = deviceContext.getAbsoluteAxisValue(ABS_MT_SLOT, &initialSlot);
-        status == OK) {
-        mCurrentSlot = initialSlot;
+    if (const std::optional<int32_t> initialSlot = deviceContext.getAbsoluteAxisValue(ABS_MT_SLOT);
+        initialSlot.has_value()) {
+        mCurrentSlot = initialSlot.value();
     } else {
-        ALOGE("Could not retrieve current multi-touch slot index. status=%s",
-              statusToString(status).c_str());
+        ALOGE("Could not retrieve current multi-touch slot index");
     }
 }
 
diff --git a/services/inputflinger/reader/mapper/accumulator/SingleTouchMotionAccumulator.cpp b/services/inputflinger/reader/mapper/accumulator/SingleTouchMotionAccumulator.cpp
index 2b82ddf..4cf9243 100644
--- a/services/inputflinger/reader/mapper/accumulator/SingleTouchMotionAccumulator.cpp
+++ b/services/inputflinger/reader/mapper/accumulator/SingleTouchMotionAccumulator.cpp
@@ -26,13 +26,13 @@
 }
 
 void SingleTouchMotionAccumulator::reset(InputDeviceContext& deviceContext) {
-    mAbsX = deviceContext.getAbsoluteAxisValue(ABS_X);
-    mAbsY = deviceContext.getAbsoluteAxisValue(ABS_Y);
-    mAbsPressure = deviceContext.getAbsoluteAxisValue(ABS_PRESSURE);
-    mAbsToolWidth = deviceContext.getAbsoluteAxisValue(ABS_TOOL_WIDTH);
-    mAbsDistance = deviceContext.getAbsoluteAxisValue(ABS_DISTANCE);
-    mAbsTiltX = deviceContext.getAbsoluteAxisValue(ABS_TILT_X);
-    mAbsTiltY = deviceContext.getAbsoluteAxisValue(ABS_TILT_Y);
+    mAbsX = deviceContext.getAbsoluteAxisValue(ABS_X).value_or(0);
+    mAbsY = deviceContext.getAbsoluteAxisValue(ABS_Y).value_or(0);
+    mAbsPressure = deviceContext.getAbsoluteAxisValue(ABS_PRESSURE).value_or(0);
+    mAbsToolWidth = deviceContext.getAbsoluteAxisValue(ABS_TOOL_WIDTH).value_or(0);
+    mAbsDistance = deviceContext.getAbsoluteAxisValue(ABS_DISTANCE).value_or(0);
+    mAbsTiltX = deviceContext.getAbsoluteAxisValue(ABS_TILT_X).value_or(0);
+    mAbsTiltY = deviceContext.getAbsoluteAxisValue(ABS_TILT_Y).value_or(0);
 }
 
 void SingleTouchMotionAccumulator::clearAbsoluteAxes() {
diff --git a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
index e8e7376..9924d0d 100644
--- a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
+++ b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
@@ -66,10 +66,11 @@
                                    const InputDeviceContext& deviceContext, int32_t deviceId)
       : mDeviceId(deviceId),
         mReaderContext(readerContext),
-        mEnableFlingStop(input_flags::enable_touchpad_fling_stop()) {
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_X, &mXAxisInfo);
-    deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &mYAxisInfo);
-}
+        mEnableFlingStop(input_flags::enable_touchpad_fling_stop()),
+        // We can safely assume that ABS_MT_POSITION_X and _Y axes will be available, as EventHub
+        // won't classify a device as a touchpad if they're not present.
+        mXAxisInfo(deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_X).value()),
+        mYAxisInfo(deviceContext.getAbsoluteAxisInfo(ABS_MT_POSITION_Y).value()) {}
 
 std::string GestureConverter::dump() const {
     std::stringstream out;
diff --git a/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp b/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp
index 04655dc..d8a1f50 100644
--- a/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp
+++ b/services/inputflinger/reader/mapper/gestures/HardwareProperties.cpp
@@ -16,6 +16,8 @@
 
 #include "HardwareProperties.h"
 
+#include <optional>
+
 namespace android {
 
 namespace {
@@ -33,26 +35,34 @@
 
 HardwareProperties createHardwareProperties(const InputDeviceContext& context) {
     HardwareProperties props;
-    RawAbsoluteAxisInfo absMtPositionX;
-    context.getAbsoluteAxisInfo(ABS_MT_POSITION_X, &absMtPositionX);
+    // We can safely assume that ABS_MT_POSITION_X and _Y axes will be available, as EventHub won't
+    // classify a device as a touchpad if they're not present.
+    RawAbsoluteAxisInfo absMtPositionX = context.getAbsoluteAxisInfo(ABS_MT_POSITION_X).value();
     props.left = absMtPositionX.minValue;
     props.right = absMtPositionX.maxValue;
     props.res_x = absMtPositionX.resolution;
 
-    RawAbsoluteAxisInfo absMtPositionY;
-    context.getAbsoluteAxisInfo(ABS_MT_POSITION_Y, &absMtPositionY);
+    RawAbsoluteAxisInfo absMtPositionY = context.getAbsoluteAxisInfo(ABS_MT_POSITION_Y).value();
     props.top = absMtPositionY.minValue;
     props.bottom = absMtPositionY.maxValue;
     props.res_y = absMtPositionY.resolution;
 
-    RawAbsoluteAxisInfo absMtOrientation;
-    context.getAbsoluteAxisInfo(ABS_MT_ORIENTATION, &absMtOrientation);
-    props.orientation_minimum = absMtOrientation.minValue;
-    props.orientation_maximum = absMtOrientation.maxValue;
+    if (std::optional<RawAbsoluteAxisInfo> absMtOrientation =
+                context.getAbsoluteAxisInfo(ABS_MT_ORIENTATION);
+        absMtOrientation) {
+        props.orientation_minimum = absMtOrientation->minValue;
+        props.orientation_maximum = absMtOrientation->maxValue;
+    } else {
+        props.orientation_minimum = 0;
+        props.orientation_maximum = 0;
+    }
 
-    RawAbsoluteAxisInfo absMtSlot;
-    context.getAbsoluteAxisInfo(ABS_MT_SLOT, &absMtSlot);
-    props.max_finger_cnt = absMtSlot.maxValue - absMtSlot.minValue + 1;
+    if (std::optional<RawAbsoluteAxisInfo> absMtSlot = context.getAbsoluteAxisInfo(ABS_MT_SLOT);
+        absMtSlot) {
+        props.max_finger_cnt = absMtSlot->maxValue - absMtSlot->minValue + 1;
+    } else {
+        props.max_finger_cnt = 1;
+    }
     props.max_touch_cnt = getMaxTouchCount(context);
 
     // T5R2 ("Track 5, Report 2") is a feature of some old Synaptics touchpads that could track 5
@@ -71,9 +81,7 @@
     // are haptic.
     props.is_haptic_pad = false;
 
-    RawAbsoluteAxisInfo absMtPressure;
-    context.getAbsoluteAxisInfo(ABS_MT_PRESSURE, &absMtPressure);
-    props.reports_pressure = absMtPressure.valid;
+    props.reports_pressure = context.hasAbsoluteAxis(ABS_MT_PRESSURE);
     return props;
 }
 
diff --git a/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h b/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h
index 07e62c6..66d62f8 100644
--- a/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h
+++ b/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h
@@ -26,18 +26,12 @@
 #include "accumulator/CursorButtonAccumulator.h"
 #include "accumulator/MultiTouchMotionAccumulator.h"
 #include "accumulator/TouchButtonAccumulator.h"
+#include "include/TouchpadHardwareState.h"
 
 #include "include/gestures.h"
 
 namespace android {
 
-// A HardwareState struct, but bundled with a vector to contain its FingerStates, so you don't have
-// to worry about where that memory is allocated.
-struct SelfContainedHardwareState {
-    HardwareState state;
-    std::vector<FingerState> fingers;
-};
-
 // Converts RawEvents into the HardwareState structs used by the gestures library.
 class HardwareStateConverter {
 public:
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index cf0d46a..95283ba 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -70,17 +70,21 @@
         "InputTraceSession.cpp",
         "InputTracingTest.cpp",
         "InstrumentedInputReader.cpp",
+        "JoystickInputMapper_test.cpp",
         "LatencyTracker_test.cpp",
         "MultiTouchMotionAccumulator_test.cpp",
         "NotifyArgs_test.cpp",
         "PointerChoreographer_test.cpp",
         "PreferStylusOverTouch_test.cpp",
         "PropertyProvider_test.cpp",
+        "RotaryEncoderInputMapper_test.cpp",
         "SlopController_test.cpp",
+        "SwitchInputMapper_test.cpp",
         "SyncQueue_test.cpp",
         "TimerProvider_test.cpp",
         "TestInputListener.cpp",
         "TouchpadInputMapper_test.cpp",
+        "VibratorInputMapper_test.cpp",
         "MultiTouchInputMapper_test.cpp",
         "KeyboardInputMapper_test.cpp",
         "UinputDevice.cpp",
@@ -115,5 +119,8 @@
     test_options: {
         unit_test: true,
     },
-    test_suites: ["device-tests"],
+    test_suites: [
+        "device-tests",
+        "device-platinum-tests",
+    ],
 }
diff --git a/services/inputflinger/tests/CursorInputMapper_test.cpp b/services/inputflinger/tests/CursorInputMapper_test.cpp
index cda067f..b27d02d 100644
--- a/services/inputflinger/tests/CursorInputMapper_test.cpp
+++ b/services/inputflinger/tests/CursorInputMapper_test.cpp
@@ -17,11 +17,13 @@
 #include "CursorInputMapper.h"
 
 #include <list>
+#include <optional>
 #include <string>
 #include <tuple>
 #include <variant>
 
 #include <android-base/logging.h>
+#include <android_companion_virtualdevice_flags.h>
 #include <com_android_input_flags.h>
 #include <gtest/gtest.h>
 #include <input/DisplayViewport.h>
@@ -92,41 +94,10 @@
     return v;
 }
 
-/**
- * A fake InputDeviceContext that allows the associated viewport to be specified for the mapper.
- *
- * This is currently necessary because InputMapperUnitTest doesn't register the mappers it creates
- * with the InputDevice object, meaning that InputDevice::isIgnored becomes true, and the input
- * device doesn't set its associated viewport when it's configured.
- *
- * TODO(b/319217713): work out a way to avoid this fake.
- */
-class ViewportFakingInputDeviceContext : public InputDeviceContext {
-public:
-    ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
-                                     std::optional<DisplayViewport> viewport)
-          : InputDeviceContext(device, eventHubId), mAssociatedViewport(viewport) {}
-
-    ViewportFakingInputDeviceContext(InputDevice& device, int32_t eventHubId,
-                                     ui::Rotation orientation)
-          : ViewportFakingInputDeviceContext(device, eventHubId,
-                                             createPrimaryViewport(orientation)) {}
-
-    std::optional<DisplayViewport> getAssociatedViewport() const override {
-        return mAssociatedViewport;
-    }
-
-    void setViewport(const std::optional<DisplayViewport>& viewport) {
-        mAssociatedViewport = viewport;
-    }
-
-private:
-    std::optional<DisplayViewport> mAssociatedViewport;
-};
-
 } // namespace
 
 namespace input_flags = com::android::input::flags;
+namespace vd_flags = android::companion::virtualdevice::flags;
 
 /**
  * Unit tests for CursorInputMapper.
@@ -151,6 +122,10 @@
                 .WillRepeatedly(Return(false));
         EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL))
                 .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
 
         mFakePolicy->setDefaultPointerDisplayId(DISPLAY_ID);
         mFakePolicy->addDisplayViewport(createPrimaryViewport(ui::Rotation::Rotation0));
@@ -193,6 +168,7 @@
 protected:
     void SetUp() override {
         input_flags::enable_new_mouse_pointer_ballistics(false);
+        vd_flags::high_resolution_scroll(false);
         CursorInputMapperUnitTestBase::SetUp();
     }
 };
@@ -534,8 +510,9 @@
     // need to be rotated.
     mPropertyMap.addProperty("cursor.mode", "navigation");
     mPropertyMap.addProperty("cursor.orientationAware", "1");
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, ui::Rotation::Rotation90);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation90)));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  0,  1));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 1,  1,  1,  1));
@@ -551,8 +528,9 @@
     // Since InputReader works in the un-rotated coordinate space, only devices that are not
     // orientation-aware are affected by display rotation.
     mPropertyMap.addProperty("cursor.mode", "navigation");
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, ui::Rotation::Rotation0);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation0)));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  0,  1));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 1,  1,  1,  1));
@@ -563,7 +541,8 @@
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  0, -1,  0));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  1, -1,  1));
 
-    deviceContext.setViewport(createPrimaryViewport(ui::Rotation::Rotation90));
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation90)));
     std::list<NotifyArgs> args =
             mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                  InputReaderConfiguration::Change::DISPLAY_INFO);
@@ -576,7 +555,8 @@
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  0,  0, -1));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  1, -1, -1));
 
-    deviceContext.setViewport(createPrimaryViewport(ui::Rotation::Rotation180));
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation180)));
     args = mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                 InputReaderConfiguration::Change::DISPLAY_INFO);
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  0, -1));
@@ -588,7 +568,8 @@
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  0,  1,  0));
     ASSERT_NO_FATAL_FAILURE(testMotionRotation(-1,  1,  1, -1));
 
-    deviceContext.setViewport(createPrimaryViewport(ui::Rotation::Rotation270));
+    EXPECT_CALL((*mDevice), getAssociatedViewport)
+            .WillRepeatedly(Return(createPrimaryViewport(ui::Rotation::Rotation270)));
     args = mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                 InputReaderConfiguration::Change::DISPLAY_INFO);
     ASSERT_NO_FATAL_FAILURE(testMotionRotation( 0,  1,  1,  0));
@@ -642,8 +623,8 @@
     mReaderConfiguration.setDisplayViewports({primaryViewport, secondaryViewport});
     // Set up the secondary display as the display on which the pointer should be shown.
     // The InputDevice is not associated with any display.
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, secondaryViewport);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(secondaryViewport));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
     // Ensure input events are generated for the secondary display.
@@ -663,8 +644,8 @@
     mReaderConfiguration.setDisplayViewports({primaryViewport, secondaryViewport});
     // Set up the primary display as the display on which the pointer should be shown.
     // Associate the InputDevice with the secondary display.
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, secondaryViewport);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(secondaryViewport));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     // With PointerChoreographer enabled, there could be a PointerController for the associated
     // display even if it is different from the pointer display. So the mapper should generate an
@@ -835,6 +816,72 @@
                               WithOrientation(0.0f), WithDistance(0.0f)))));
 }
 
+TEST_F(CursorInputMapperUnitTest, ProcessRegularScroll) {
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(1.0f, 1.0f)))));
+}
+
+TEST_F(CursorInputMapperUnitTest, ProcessHighResScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
+TEST_F(CursorInputMapperUnitTest, HighResScrollIgnoresRegularScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
 /**
  * When Pointer Capture is enabled, we expect to report unprocessed relative movements, so any
  * pointer acceleration or speed processing should not be applied.
@@ -954,8 +1001,8 @@
     mPropertyMap.addProperty("cursor.mode", "pointer");
     DisplayViewport primaryViewport = createPrimaryViewport(ui::Rotation::Rotation0);
     mReaderConfiguration.setDisplayViewports({primaryViewport});
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID, primaryViewport);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(primaryViewport));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
 
@@ -993,9 +1040,8 @@
     mReaderConfiguration.displaysWithMousePointerAccelerationDisabled.emplace(DISPLAY_ID);
 
     // Don't associate the device with the display yet.
-    ViewportFakingInputDeviceContext deviceContext(*mDevice, EVENTHUB_ID,
-                                                   /*viewport=*/std::nullopt);
-    mMapper = createInputMapper<CursorInputMapper>(deviceContext, mReaderConfiguration);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(std::nullopt));
+    mMapper = createInputMapper<CursorInputMapper>(*mDeviceContext, mReaderConfiguration);
 
     std::list<NotifyArgs> args;
 
@@ -1009,7 +1055,7 @@
     ASSERT_GT(coords.getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y), 20.f);
 
     // Now associate the device with the display, and verify that acceleration is disabled.
-    deviceContext.setViewport(primaryViewport);
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(primaryViewport));
     args += mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
                                  InputReaderConfiguration::Change::DISPLAY_INFO);
     args.clear();
@@ -1023,6 +1069,72 @@
                               WithRelativeMotion(10, 20)))));
 }
 
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, ProcessRegularScroll) {
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(1.0f, 1.0f)))));
+}
+
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, ProcessHighResScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
+TEST_F(CursorInputMapperUnitTestWithNewBallistics, HighResScrollIgnoresRegularScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    createMapper();
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_REL, REL_HWHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithSource(AINPUT_SOURCE_MOUSE),
+                                          WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                                          WithScroll(0.5f, 0.5f)))));
+}
+
 namespace {
 
 // Minimum timestamp separation between subsequent input events from a Bluetooth device.
diff --git a/services/inputflinger/tests/EventHub_test.cpp b/services/inputflinger/tests/EventHub_test.cpp
index 2e296da..0e3d15a 100644
--- a/services/inputflinger/tests/EventHub_test.cpp
+++ b/services/inputflinger/tests/EventHub_test.cpp
@@ -48,9 +48,6 @@
                 case EventHubInterface::DEVICE_REMOVED:
                     ALOGI("Device removed: %i", event.deviceId);
                     break;
-                case EventHubInterface::FINISHED_DEVICE_SCAN:
-                    ALOGI("Finished device scan.");
-                    break;
             }
         } else {
             ALOGI("Device %" PRId32 " : time = %" PRId64 ", type %i, code %i, value %i",
@@ -145,15 +142,13 @@
     // None of the existing system devices should be changing while this test is run.
     // Check that the returned device ids are unique for all of the existing devices.
     EXPECT_EQ(existingDevices.size(), events.size() - 1);
-    // The last event should be "finished device scan"
-    EXPECT_EQ(EventHubInterface::FINISHED_DEVICE_SCAN, events[events.size() - 1].type);
 }
 
 int32_t EventHubTest::waitForDeviceCreation() {
     // Wait a little longer than usual, to ensure input device has time to be created
     std::vector<RawEvent> events = getEvents(2);
-    if (events.size() != 2) {
-        ADD_FAILURE() << "Instead of 2 events, received " << events.size();
+    if (events.size() != 1) {
+        ADD_FAILURE() << "Instead of 1 event, received " << events.size();
         return 0; // this value is unused
     }
     const RawEvent& deviceAddedEvent = events[0];
@@ -161,21 +156,15 @@
     InputDeviceIdentifier identifier = mEventHub->getDeviceIdentifier(deviceAddedEvent.deviceId);
     const int32_t deviceId = deviceAddedEvent.deviceId;
     EXPECT_EQ(identifier.name, mKeyboard->getName());
-    const RawEvent& finishedDeviceScanEvent = events[1];
-    EXPECT_EQ(static_cast<int32_t>(EventHubInterface::FINISHED_DEVICE_SCAN),
-              finishedDeviceScanEvent.type);
     return deviceId;
 }
 
 void EventHubTest::waitForDeviceClose(int32_t deviceId) {
     std::vector<RawEvent> events = getEvents(2);
-    ASSERT_EQ(2U, events.size());
+    ASSERT_EQ(1U, events.size());
     const RawEvent& deviceRemovedEvent = events[0];
     EXPECT_EQ(static_cast<int32_t>(EventHubInterface::DEVICE_REMOVED), deviceRemovedEvent.type);
     EXPECT_EQ(deviceId, deviceRemovedEvent.deviceId);
-    const RawEvent& finishedDeviceScanEvent = events[1];
-    EXPECT_EQ(static_cast<int32_t>(EventHubInterface::FINISHED_DEVICE_SCAN),
-              finishedDeviceScanEvent.type);
 }
 
 void EventHubTest::assertNoMoreEvents() {
diff --git a/services/inputflinger/tests/FakeEventHub.cpp b/services/inputflinger/tests/FakeEventHub.cpp
index daa000f..31fbf20 100644
--- a/services/inputflinger/tests/FakeEventHub.cpp
+++ b/services/inputflinger/tests/FakeEventHub.cpp
@@ -16,6 +16,8 @@
 
 #include "FakeEventHub.h"
 
+#include <optional>
+
 #include <android-base/thread_annotations.h>
 #include <gtest/gtest.h>
 #include <linux/input-event-codes.h>
@@ -86,10 +88,6 @@
     return device->disable();
 }
 
-void FakeEventHub::finishDeviceScan() {
-    enqueueEvent(ARBITRARY_TIME, READ_TIME, 0, EventHubInterface::FINISHED_DEVICE_SCAN, 0, 0);
-}
-
 void FakeEventHub::addConfigurationProperty(int32_t deviceId, const char* key, const char* value) {
     getDevice(deviceId)->configuration.addProperty(key, value);
 }
@@ -103,7 +101,6 @@
     Device* device = getDevice(deviceId);
 
     RawAbsoluteAxisInfo info;
-    info.valid = true;
     info.minValue = minValue;
     info.maxValue = maxValue;
     info.flat = flat;
@@ -263,18 +260,16 @@
     return device->configuration;
 }
 
-status_t FakeEventHub::getAbsoluteAxisInfo(int32_t deviceId, int axis,
-                                           RawAbsoluteAxisInfo* outAxisInfo) const {
+std::optional<RawAbsoluteAxisInfo> FakeEventHub::getAbsoluteAxisInfo(int32_t deviceId,
+                                                                     int axis) const {
     Device* device = getDevice(deviceId);
     if (device) {
         ssize_t index = device->absoluteAxes.indexOfKey(axis);
         if (index >= 0) {
-            *outAxisInfo = device->absoluteAxes.valueAt(index);
-            return OK;
+            return device->absoluteAxes.valueAt(index);
         }
     }
-    outAxisInfo->clear();
-    return -1;
+    return std::nullopt;
 }
 
 bool FakeEventHub::hasRelativeAxis(int32_t deviceId, int axis) const {
@@ -417,18 +412,15 @@
     return AKEY_STATE_UNKNOWN;
 }
 
-status_t FakeEventHub::getAbsoluteAxisValue(int32_t deviceId, int32_t axis,
-                                            int32_t* outValue) const {
+std::optional<int32_t> FakeEventHub::getAbsoluteAxisValue(int32_t deviceId, int32_t axis) const {
     Device* device = getDevice(deviceId);
     if (device) {
         ssize_t index = device->absoluteAxisValue.indexOfKey(axis);
         if (index >= 0) {
-            *outValue = device->absoluteAxisValue.valueAt(index);
-            return OK;
+            return device->absoluteAxisValue.valueAt(index);
         }
     }
-    *outValue = 0;
-    return -1;
+    return std::nullopt;
 }
 
 void FakeEventHub::setMtSlotValues(int32_t deviceId, int32_t axis,
diff --git a/services/inputflinger/tests/FakeEventHub.h b/services/inputflinger/tests/FakeEventHub.h
index f07b344..3d8dddd 100644
--- a/services/inputflinger/tests/FakeEventHub.h
+++ b/services/inputflinger/tests/FakeEventHub.h
@@ -112,8 +112,6 @@
     status_t enableDevice(int32_t deviceId) override;
     status_t disableDevice(int32_t deviceId) override;
 
-    void finishDeviceScan();
-
     void addConfigurationProperty(int32_t deviceId, const char* key, const char* value);
     void addConfigurationMap(int32_t deviceId, const PropertyMap* configuration);
 
@@ -168,8 +166,8 @@
     InputDeviceIdentifier getDeviceIdentifier(int32_t deviceId) const override;
     int32_t getDeviceControllerNumber(int32_t) const override;
     std::optional<PropertyMap> getConfiguration(int32_t deviceId) const override;
-    status_t getAbsoluteAxisInfo(int32_t deviceId, int axis,
-                                 RawAbsoluteAxisInfo* outAxisInfo) const override;
+    std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t deviceId,
+                                                           int axis) const override;
     bool hasRelativeAxis(int32_t deviceId, int axis) const override;
     bool hasInputProperty(int32_t, int) const override;
     bool hasMscEvent(int32_t deviceId, int mscEvent) const override final;
@@ -187,7 +185,7 @@
     std::optional<RawLayoutInfo> getRawLayoutInfo(int32_t deviceId) const override;
     int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const override;
     int32_t getSwitchState(int32_t deviceId, int32_t sw) const override;
-    status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis, int32_t* outValue) const override;
+    std::optional<int32_t> getAbsoluteAxisValue(int32_t deviceId, int32_t axis) const override;
     int32_t getKeyCodeForKeyLocation(int32_t deviceId, int32_t locationKeyCode) const override;
 
     // Return true if the device has non-empty key layout.
diff --git a/services/inputflinger/tests/FakeInputDispatcherPolicy.cpp b/services/inputflinger/tests/FakeInputDispatcherPolicy.cpp
index 3df05f4..db68d8a 100644
--- a/services/inputflinger/tests/FakeInputDispatcherPolicy.cpp
+++ b/services/inputflinger/tests/FakeInputDispatcherPolicy.cpp
@@ -54,13 +54,6 @@
     ASSERT_EQ(nullptr, mFilteredEvent);
 }
 
-void FakeInputDispatcherPolicy::assertNotifyConfigurationChangedWasCalled(nsecs_t when) {
-    std::scoped_lock lock(mLock);
-    ASSERT_TRUE(mConfigurationChangedTime) << "Timed out waiting for configuration changed call";
-    ASSERT_EQ(*mConfigurationChangedTime, when);
-    mConfigurationChangedTime = std::nullopt;
-}
-
 void FakeInputDispatcherPolicy::assertNotifySwitchWasCalled(const NotifySwitchArgs& args) {
     std::scoped_lock lock(mLock);
     ASSERT_TRUE(mLastNotifySwitch);
@@ -342,11 +335,6 @@
     return std::make_optional(item);
 }
 
-void FakeInputDispatcherPolicy::notifyConfigurationChanged(nsecs_t when) {
-    std::scoped_lock lock(mLock);
-    mConfigurationChangedTime = when;
-}
-
 void FakeInputDispatcherPolicy::notifyWindowUnresponsive(const sp<IBinder>& connectionToken,
                                                          std::optional<gui::Pid> pid,
                                                          const std::string&) {
diff --git a/services/inputflinger/tests/FakeInputDispatcherPolicy.h b/services/inputflinger/tests/FakeInputDispatcherPolicy.h
index a0f3ea9..a9e39d1 100644
--- a/services/inputflinger/tests/FakeInputDispatcherPolicy.h
+++ b/services/inputflinger/tests/FakeInputDispatcherPolicy.h
@@ -66,7 +66,6 @@
     void assertFilterInputEventWasCalled(const NotifyKeyArgs& args);
     void assertFilterInputEventWasCalled(const NotifyMotionArgs& args, vec2 point);
     void assertFilterInputEventWasNotCalled();
-    void assertNotifyConfigurationChangedWasCalled(nsecs_t when);
     void assertNotifySwitchWasCalled(const NotifySwitchArgs& args);
     void assertOnPointerDownEquals(const sp<IBinder>& touchedToken);
     void assertOnPointerDownWasNotCalled();
@@ -121,7 +120,6 @@
 private:
     std::mutex mLock;
     std::unique_ptr<InputEvent> mFilteredEvent GUARDED_BY(mLock);
-    std::optional<nsecs_t> mConfigurationChangedTime GUARDED_BY(mLock);
     sp<IBinder> mOnPointerDownToken GUARDED_BY(mLock);
     std::optional<NotifySwitchArgs> mLastNotifySwitch GUARDED_BY(mLock);
 
@@ -173,7 +171,6 @@
                                                            std::condition_variable& condition)
             REQUIRES(mLock);
 
-    void notifyConfigurationChanged(nsecs_t when) override;
     void notifyWindowUnresponsive(const sp<IBinder>& connectionToken, std::optional<gui::Pid> pid,
                                   const std::string&) override;
     void notifyWindowResponsive(const sp<IBinder>& connectionToken,
diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.cpp b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
index d2cb0ac..6099c91 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.cpp
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
@@ -16,6 +16,7 @@
 
 #include "FakeInputReaderPolicy.h"
 
+#include <android-base/properties.h>
 #include <android-base/thread_annotations.h>
 #include <gtest/gtest.h>
 
@@ -24,6 +25,12 @@
 
 namespace android {
 
+namespace {
+
+static const int HW_TIMEOUT_MULTIPLIER = base::GetIntProperty("ro.hw_timeout_multiplier", 1);
+
+} // namespace
+
 void FakeInputReaderPolicy::assertInputDevicesChanged() {
     waitForInputDevices([](bool devicesChanged) {
         if (!devicesChanged) {
@@ -241,9 +248,11 @@
     base::ScopedLockAssertion assumeLocked(mLock);
 
     const bool devicesChanged =
-            mDevicesChangedCondition.wait_for(lock, WAIT_TIMEOUT, [this]() REQUIRES(mLock) {
-                return mInputDevicesChanged;
-            });
+            mDevicesChangedCondition.wait_for(lock,
+                                              ADD_INPUT_DEVICE_TIMEOUT * HW_TIMEOUT_MULTIPLIER,
+                                              [this]() REQUIRES(mLock) {
+                                                  return mInputDevicesChanged;
+                                              });
     ASSERT_NO_FATAL_FAILURE(processDevicesChanged(devicesChanged));
     mInputDevicesChanged = false;
 }
diff --git a/services/inputflinger/tests/HardwareProperties_test.cpp b/services/inputflinger/tests/HardwareProperties_test.cpp
index 8dfa8c8..e87f822 100644
--- a/services/inputflinger/tests/HardwareProperties_test.cpp
+++ b/services/inputflinger/tests/HardwareProperties_test.cpp
@@ -48,24 +48,19 @@
     static constexpr int32_t EVENTHUB_ID = 1;
 
     void setupValidAxis(int axis, int32_t min, int32_t max, int32_t resolution) {
-        EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis, testing::_))
-                .WillRepeatedly([=](int32_t, int32_t, RawAbsoluteAxisInfo* outAxisInfo) {
-                    outAxisInfo->valid = true;
-                    outAxisInfo->minValue = min;
-                    outAxisInfo->maxValue = max;
-                    outAxisInfo->flat = 0;
-                    outAxisInfo->fuzz = 0;
-                    outAxisInfo->resolution = resolution;
-                    return OK;
-                });
+        EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis))
+                .WillRepeatedly(Return(std::optional<RawAbsoluteAxisInfo>{{
+                        .minValue = min,
+                        .maxValue = max,
+                        .flat = 0,
+                        .fuzz = 0,
+                        .resolution = resolution,
+                }}));
     }
 
     void setupInvalidAxis(int axis) {
-        EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis, testing::_))
-                .WillRepeatedly([=](int32_t, int32_t, RawAbsoluteAxisInfo* outAxisInfo) {
-                    outAxisInfo->valid = false;
-                    return -1;
-                });
+        EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis))
+                .WillRepeatedly(Return(std::nullopt));
     }
 
     void setProperty(int property, bool value) {
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 2056372..c2f174f 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -411,16 +411,6 @@
             << "Should reject motion events with duplicate pointer ids.";
 }
 
-/* Test InputDispatcher for notifyConfigurationChanged and notifySwitch events */
-
-TEST_F(InputDispatcherTest, NotifyConfigurationChanged_CallsPolicy) {
-    constexpr nsecs_t eventTime = 20;
-    mDispatcher->notifyConfigurationChanged({/*id=*/10, eventTime});
-    ASSERT_TRUE(mDispatcher->waitForIdle());
-
-    mFakePolicy->assertNotifyConfigurationChangedWasCalled(eventTime);
-}
-
 TEST_F(InputDispatcherTest, NotifySwitch_CallsPolicy) {
     NotifySwitchArgs args(InputEvent::nextId(), /*eventTime=*/20, /*policyFlags=*/0,
                           /*switchValues=*/1,
@@ -4172,6 +4162,123 @@
     window2->consumeMotionEvent(WithDownTime(secondDown->getDownTime()));
 }
 
+/**
+ * When events are not split, the downTime should be adjusted such that the downTime corresponds
+ * to the event time of the first ACTION_DOWN. If a new window appears, it should not affect
+ * the event routing because the first window prevents splitting.
+ */
+TEST_F(InputDispatcherTest, SplitTouchesSendCorrectActionDownTimeForNewWindow) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> window1 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
+    window1->setTouchableRegion(Region{{0, 0, 100, 100}});
+    window1->setPreventSplitting(true);
+
+    sp<FakeWindowHandle> window2 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window2", DISPLAY_ID);
+    window2->setTouchableRegion(Region{{100, 0, 200, 100}});
+
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo()}, {}, 0, 0});
+
+    // Touch down on the first window
+    NotifyMotionArgs downArgs = MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                        .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                        .build();
+    mDispatcher->notifyMotion(downArgs);
+
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDownTime(downArgs.downTime)));
+
+    // Second window is added
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo(), *window2->getInfo()}, {}, 0, 0});
+
+    // Now touch down on the window with another pointer
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    window1->consumeMotionPointerDown(1, AllOf(WithDownTime(downArgs.downTime)));
+
+    // Finish the gesture
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    window1->consumeMotionPointerUp(1, AllOf(WithDownTime(downArgs.downTime)));
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_UP), WithDownTime(downArgs.downTime)));
+    window2->assertNoEvents();
+}
+
+/**
+ * When splitting touch events, the downTime should be adjusted such that the downTime corresponds
+ * to the event time of the first ACTION_DOWN sent to the new window.
+ * If a new window that does not support split appears on the screen and gets touched with the
+ * second finger, it should not get any events because it doesn't want split touches. At the same
+ * time, the first window should not get the pointer_down event because it supports split touches
+ * (and the touch occurred outside of the bounds of window1).
+ */
+TEST_F(InputDispatcherTest, SplitTouchesDropsEventForNonSplittableSecondWindow) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> window1 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
+    window1->setTouchableRegion(Region{{0, 0, 100, 100}});
+
+    sp<FakeWindowHandle> window2 =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Window2", DISPLAY_ID);
+    window2->setTouchableRegion(Region{{100, 0, 200, 100}});
+
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo()}, {}, 0, 0});
+
+    // Touch down on the first window
+    NotifyMotionArgs downArgs = MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                        .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                        .build();
+    mDispatcher->notifyMotion(downArgs);
+
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDownTime(downArgs.downTime)));
+
+    // Second window is added
+    window2->setPreventSplitting(true);
+    mDispatcher->onWindowInfosChanged({{*window1->getInfo(), *window2->getInfo()}, {}, 0, 0});
+
+    // Now touch down on the window with another pointer
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    // Event is dropped because window2 doesn't support split touch, and window1 does.
+
+    // Complete the gesture
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(150).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+    // A redundant MOVE event is generated that doesn't carry any new information
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_MOVE), WithDownTime(downArgs.downTime)));
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(50))
+                                      .downTime(downArgs.downTime)
+                                      .build());
+
+    window1->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_UP), WithDownTime(downArgs.downTime)));
+    window1->assertNoEvents();
+    window2->assertNoEvents();
+}
+
 TEST_F(InputDispatcherTest, HoverMoveEnterMouseClickAndHoverMoveExit) {
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> windowLeft = sp<FakeWindowHandle>::make(application, mDispatcher, "Left",
@@ -4376,6 +4483,202 @@
     window->assertNoEvents();
 }
 
+/**
+ * A spy window sits above a window with NO_INPUT_CHANNEL. Ensure that the spy receives events even
+ * though the window underneath should not get any events.
+ */
+TEST_F(InputDispatcherTest, NonSplittableSpyAboveNoInputChannelWindowSinglePointer) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+
+    sp<FakeWindowHandle> spyWindow = sp<FakeWindowHandle>::make(application, mDispatcher, "Spy",
+                                                                ui::LogicalDisplayId::DEFAULT);
+    spyWindow->setFrame(Rect(0, 0, 100, 100));
+    spyWindow->setTrustedOverlay(true);
+    spyWindow->setPreventSplitting(true);
+    spyWindow->setSpy(true);
+    // Another window below spy that has both NO_INPUT_CHANNEL and PREVENT_SPLITTING
+    sp<FakeWindowHandle> inputSinkWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Input sink below spy",
+                                       ui::LogicalDisplayId::DEFAULT);
+    inputSinkWindow->setFrame(Rect(0, 0, 100, 100));
+    inputSinkWindow->setTrustedOverlay(true);
+    inputSinkWindow->setPreventSplitting(true);
+    inputSinkWindow->setNoInputChannel(true);
+
+    mDispatcher->onWindowInfosChanged(
+            {{*spyWindow->getInfo(), *inputSinkWindow->getInfo()}, {}, 0, 0});
+
+    // Tap the spy window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(51))
+                                      .build());
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/0, ToolType::FINGER).x(50).y(51))
+                    .build());
+
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_DOWN)));
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_UP)));
+    inputSinkWindow->assertNoEvents();
+}
+
+/**
+ * A spy window sits above a window with NO_INPUT_CHANNEL. Ensure that the spy receives events even
+ * though the window underneath should not get any events.
+ * Same test as above, but with two pointers touching instead of one.
+ */
+TEST_F(InputDispatcherTest, NonSplittableSpyAboveNoInputChannelWindowTwoPointers) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+
+    sp<FakeWindowHandle> spyWindow = sp<FakeWindowHandle>::make(application, mDispatcher, "Spy",
+                                                                ui::LogicalDisplayId::DEFAULT);
+    spyWindow->setFrame(Rect(0, 0, 100, 100));
+    spyWindow->setTrustedOverlay(true);
+    spyWindow->setPreventSplitting(true);
+    spyWindow->setSpy(true);
+    // Another window below spy that would have both NO_INPUT_CHANNEL and PREVENT_SPLITTING
+    sp<FakeWindowHandle> inputSinkWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Input sink below spy",
+                                       ui::LogicalDisplayId::DEFAULT);
+    inputSinkWindow->setFrame(Rect(0, 0, 100, 100));
+    inputSinkWindow->setTrustedOverlay(true);
+    inputSinkWindow->setPreventSplitting(true);
+    inputSinkWindow->setNoInputChannel(true);
+
+    mDispatcher->onWindowInfosChanged(
+            {{*spyWindow->getInfo(), *inputSinkWindow->getInfo()}, {}, 0, 0});
+
+    // Both fingers land into the spy window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(50).y(51))
+                                      .build());
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/0, ToolType::FINGER).x(50).y(51))
+                    .pointer(PointerBuilder(/*id=*/1, ToolType::FINGER).x(10).y(11))
+                    .build());
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/0, ToolType::FINGER).x(50).y(51))
+                    .pointer(PointerBuilder(/*id=*/1, ToolType::FINGER).x(10).y(11))
+                    .build());
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/0, ToolType::FINGER).x(50).y(51))
+                    .build());
+
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_DOWN)));
+    spyWindow->consumeMotionPointerDown(1, WithPointerCount(2));
+    spyWindow->consumeMotionPointerUp(1, WithPointerCount(2));
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_UP)));
+    inputSinkWindow->assertNoEvents();
+}
+
+/** Check the behaviour for cases where input sink prevents or doesn't prevent splitting. */
+class SpyThatPreventsSplittingWithApplicationFixture : public InputDispatcherTest,
+                                                       public ::testing::WithParamInterface<bool> {
+};
+
+/**
+ * Three windows:
+ * - An application window (app window)
+ * - A spy window that does not overlap the app window. Has PREVENT_SPLITTING flag
+ * - A window below the spy that has NO_INPUT_CHANNEL (call it 'inputSink')
+ *
+ * The spy window is side-by-side with the app window. The inputSink is below the spy.
+ * We first touch the area outside of the appWindow, but inside spyWindow.
+ * Only the SPY window should get the DOWN event.
+ * The spy pilfers after receiving the first DOWN event.
+ * Next, we touch the app window.
+ * The spy should receive POINTER_DOWN(1) (since spy is preventing splits).
+ * Also, since the spy is already pilfering the first pointer, it will be sent the remaining new
+ * pointers automatically, as well.
+ * Next, the first pointer (from the spy) is lifted.
+ * Spy should get POINTER_UP(0).
+ * This event should not go to the app because the app never received this pointer to begin with.
+ * Now, lift the remaining pointer and check that the spy receives UP event.
+ *
+ * Finally, send a new ACTION_DOWN event to the spy and check that it's received.
+ * This test attempts to reproduce a crash in the dispatcher.
+ */
+TEST_P(SpyThatPreventsSplittingWithApplicationFixture, SpyThatPreventsSplittingWithApplication) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+
+    sp<FakeWindowHandle> spyWindow = sp<FakeWindowHandle>::make(application, mDispatcher, "Spy",
+                                                                ui::LogicalDisplayId::DEFAULT);
+    spyWindow->setFrame(Rect(100, 100, 200, 200));
+    spyWindow->setTrustedOverlay(true);
+    spyWindow->setPreventSplitting(true);
+    spyWindow->setSpy(true);
+    // Another window below spy that has both NO_INPUT_CHANNEL and PREVENT_SPLITTING
+    sp<FakeWindowHandle> inputSinkWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Input sink below spy",
+                                       ui::LogicalDisplayId::DEFAULT);
+    inputSinkWindow->setFrame(Rect(100, 100, 200, 200)); // directly below the spy
+    inputSinkWindow->setTrustedOverlay(true);
+    inputSinkWindow->setPreventSplitting(GetParam());
+    inputSinkWindow->setNoInputChannel(true);
+
+    sp<FakeWindowHandle> appWindow = sp<FakeWindowHandle>::make(application, mDispatcher, "App",
+                                                                ui::LogicalDisplayId::DEFAULT);
+    appWindow->setFrame(Rect(0, 0, 100, 100));
+
+    mDispatcher->setFocusedApplication(ui::LogicalDisplayId::DEFAULT, application);
+    mDispatcher->onWindowInfosChanged(
+            {{*spyWindow->getInfo(), *inputSinkWindow->getInfo(), *appWindow->getInfo()},
+             {},
+             0,
+             0});
+
+    // First finger lands outside of the appWindow, but inside of the spy window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(150))
+                                      .build());
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_DOWN)));
+
+    mDispatcher->pilferPointers(spyWindow->getToken());
+
+    // Second finger lands in the app, and goes to the spy window. It doesn't go to the app because
+    // the spy is already pilfering the first pointer, and this automatically grants the remaining
+    // new pointers to the spy, as well.
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/0, ToolType::FINGER).x(150).y(150))
+                    .pointer(PointerBuilder(/*id=*/1, ToolType::FINGER).x(50).y(50))
+                    .build());
+
+    spyWindow->consumeMotionPointerDown(1, WithPointerCount(2));
+
+    // Now lift up the first pointer
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(POINTER_0_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/0, ToolType::FINGER).x(150).y(150))
+                    .pointer(PointerBuilder(/*id=*/1, ToolType::FINGER).x(50).y(50))
+                    .build());
+    spyWindow->consumeMotionPointerUp(0, WithPointerCount(2));
+
+    // And lift the remaining pointer!
+    mDispatcher->notifyMotion(
+            MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(/*id=*/1, ToolType::FINGER).x(50).y(50))
+                    .build());
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_UP), WithPointerCount(1)));
+
+    // Now send a new DOWN, which should again go to spy.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(150))
+                                      .build());
+    spyWindow->consumeMotionEvent(AllOf(WithMotionAction(ACTION_DOWN)));
+    // The app window doesn't get any events this entire time because the spy received the events
+    // first and pilfered, which makes all new pointers go to it as well.
+    appWindow->assertNoEvents();
+}
+
+// Behaviour should be the same regardless of whether inputSink supports splitting.
+INSTANTIATE_TEST_SUITE_P(SpyThatPreventsSplittingWithApplication,
+                         SpyThatPreventsSplittingWithApplicationFixture, testing::Bool());
+
 TEST_F(InputDispatcherTest, HoverWithSpyWindows) {
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
 
@@ -4734,6 +5037,54 @@
 }
 
 /**
+ * Invalid events injected by input filter are rejected.
+ */
+TEST_F(InputDispatcherTest, InvalidA11yEventsGetRejected) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> window = sp<FakeWindowHandle>::make(application, mDispatcher, "Window",
+                                                             ui::LogicalDisplayId::DEFAULT);
+
+    mDispatcher->setFocusedApplication(ui::LogicalDisplayId::DEFAULT, application);
+
+    mDispatcher->onWindowInfosChanged({{*window->getInfo()}, {}, 0, 0});
+
+    // a11y sets 'POLICY_FLAG_INJECTED_FROM_ACCESSIBILITY' policy flag during injection, so define
+    // a custom injection function here for convenience.
+    auto injectFromAccessibility = [&](int32_t action, float x, float y) {
+        MotionEvent event = MotionEventBuilder(action, AINPUT_SOURCE_TOUCHSCREEN)
+                                    .pointer(PointerBuilder(0, ToolType::FINGER).x(x).y(y))
+                                    .addFlag(AMOTION_EVENT_FLAG_IS_ACCESSIBILITY_EVENT)
+                                    .build();
+        return injectMotionEvent(*mDispatcher, event, 100ms,
+                                 InputEventInjectionSync::WAIT_FOR_RESULT, /*targetUid=*/{},
+                                 POLICY_FLAG_PASS_TO_USER | POLICY_FLAG_FILTERED |
+                                         POLICY_FLAG_INJECTED_FROM_ACCESSIBILITY);
+    };
+
+    ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
+              injectFromAccessibility(ACTION_DOWN, /*x=*/300, /*y=*/400));
+    ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
+              injectFromAccessibility(ACTION_MOVE, /*x=*/310, /*y=*/420));
+    window->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+    window->consumeMotionEvent(WithMotionAction(ACTION_MOVE));
+    // finger is still down, so a new DOWN event should be rejected!
+    ASSERT_EQ(InputEventInjectionResult::FAILED,
+              injectFromAccessibility(ACTION_DOWN, /*x=*/340, /*y=*/410));
+
+    // if the gesture is correctly finished, new down event will succeed
+    ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
+              injectFromAccessibility(ACTION_MOVE, /*x=*/320, /*y=*/430));
+    ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
+              injectFromAccessibility(ACTION_UP, /*x=*/320, /*y=*/430));
+    window->consumeMotionEvent(WithMotionAction(ACTION_MOVE));
+    window->consumeMotionEvent(WithMotionAction(ACTION_UP));
+
+    ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
+              injectFromAccessibility(ACTION_DOWN, /*x=*/350, /*y=*/460));
+    window->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+}
+
+/**
  * If mouse is hovering when the touch goes down, the hovering should be stopped via HOVER_EXIT.
  */
 TEST_F(InputDispatcherTest, TouchDownAfterMouseHover_legacy) {
@@ -5283,6 +5634,7 @@
 }
 
 TEST_F(InputDispatcherTest, NonSplitTouchableWindowReceivesMultiTouch) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Fake Window",
@@ -5328,6 +5680,7 @@
  * "incomplete" gestures.
  */
 TEST_F(InputDispatcherTest, SplittableAndNonSplittableWindows) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> leftWindow =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Left splittable Window",
@@ -5358,6 +5711,273 @@
 }
 
 /**
+ * Three windows:
+ * 1) A window on the left, with flag dup_to_wallpaper
+ * 2) A window on the right, with flag slippery
+ * 3) A wallpaper window  under the left window
+ * When touch slips from right window to left, the wallpaper should receive a similar slippery
+ * enter event. Later on, when another device becomes active, the wallpaper should receive
+ * consistent streams from the new device, and also from the old device.
+ * This test attempts to reproduce a crash in the dispatcher where the wallpaper target's downTime
+ * was not getting set during slippery entrance.
+ */
+TEST_F(InputDispatcherTest, WallpaperWindowWhenSlipperyAndMultiWindowMultiTouch) {
+    SCOPED_FLAG_OVERRIDE(enable_multi_device_same_window_stream, true);
+    std::shared_ptr<FakeApplicationHandle> application1 = std::make_shared<FakeApplicationHandle>();
+    std::shared_ptr<FakeApplicationHandle> application2 = std::make_shared<FakeApplicationHandle>();
+    std::shared_ptr<FakeApplicationHandle> application3 = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> wallpaper =
+            sp<FakeWindowHandle>::make(application1, mDispatcher, "wallpaper",
+                                       ui::LogicalDisplayId::DEFAULT);
+    wallpaper->setIsWallpaper(true);
+    wallpaper->setPreventSplitting(true);
+    wallpaper->setTouchable(false);
+
+    sp<FakeWindowHandle> leftWindow = sp<FakeWindowHandle>::make(application2, mDispatcher, "Left",
+                                                                 ui::LogicalDisplayId::DEFAULT);
+    leftWindow->setTouchableRegion(Region{{0, 0, 100, 100}});
+    leftWindow->setDupTouchToWallpaper(true);
+
+    sp<FakeWindowHandle> rightWindow =
+            sp<FakeWindowHandle>::make(application3, mDispatcher, "Right",
+                                       ui::LogicalDisplayId::DEFAULT);
+    rightWindow->setTouchableRegion(Region{{100, 0, 200, 100}});
+    rightWindow->setSlippery(true);
+    rightWindow->setWatchOutsideTouch(true);
+    rightWindow->setTrustedOverlay(true);
+
+    mDispatcher->onWindowInfosChanged(
+            {{*rightWindow->getInfo(), *leftWindow->getInfo(), *wallpaper->getInfo()}, {}, 0, 0});
+
+    const DeviceId deviceA = 3;
+    const DeviceId deviceB = 9;
+
+    // First finger from device A into right window
+    NotifyMotionArgs deviceADownArgs =
+            MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(50))
+                    .deviceId(deviceA)
+                    .build();
+
+    mDispatcher->notifyMotion(deviceADownArgs);
+    rightWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+
+    // Move the finger of device A from right window into left window. It should slip.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(80).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+
+    leftWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+    rightWindow->consumeMotionEvent(WithMotionAction(ACTION_CANCEL));
+    wallpaper->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+
+    // Finger from device B down into left window
+    NotifyMotionArgs deviceBDownArgs =
+            MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(40))
+                    .deviceId(deviceB)
+                    .build();
+    mDispatcher->notifyMotion(deviceBDownArgs);
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_DOWN)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_DOWN)));
+
+    rightWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_OUTSIDE)));
+
+    // Move finger from device B, still keeping it in the left window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(50))
+                                      .deviceId(deviceB)
+                                      .downTime(deviceBDownArgs.downTime)
+                                      .build());
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_MOVE)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_MOVE)));
+
+    // Lift the finger from device B
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(50))
+                                      .deviceId(deviceB)
+                                      .downTime(deviceBDownArgs.downTime)
+                                      .build());
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_UP)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_UP)));
+
+    // Move the finger of device A, keeping it in the left window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_MOVE)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_MOVE)));
+
+    // Second finger down from device A, into the right window. It should be split into:
+    // MOVE for the left window (due to existing implementation) + a DOWN into the right window
+    // Wallpaper will not receive this new pointer, and it will only get the MOVE event.
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(140).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+    auto firstFingerMoveFromDeviceA = AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_MOVE),
+                                            WithPointerCount(1), WithPointerId(0, 0));
+    leftWindow->consumeMotionEvent(firstFingerMoveFromDeviceA);
+    wallpaper->consumeMotionEvent(firstFingerMoveFromDeviceA);
+    rightWindow->consumeMotionEvent(
+            AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_DOWN), WithPointerId(0, 1)));
+
+    // Lift up the second finger.
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(140).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+
+    rightWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+    leftWindow->consumeMotionEvent(firstFingerMoveFromDeviceA);
+    wallpaper->consumeMotionEvent(firstFingerMoveFromDeviceA);
+
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+    rightWindow->assertNoEvents();
+}
+
+/**
+ * Same test as above, but with enable_multi_device_same_window_stream flag set to false.
+ */
+TEST_F(InputDispatcherTest, WallpaperWindowWhenSlipperyAndMultiWindowMultiTouch_legacy) {
+    SCOPED_FLAG_OVERRIDE(enable_multi_device_same_window_stream, false);
+    std::shared_ptr<FakeApplicationHandle> application1 = std::make_shared<FakeApplicationHandle>();
+    std::shared_ptr<FakeApplicationHandle> application2 = std::make_shared<FakeApplicationHandle>();
+    std::shared_ptr<FakeApplicationHandle> application3 = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> wallpaper =
+            sp<FakeWindowHandle>::make(application1, mDispatcher, "wallpaper",
+                                       ui::LogicalDisplayId::DEFAULT);
+    wallpaper->setIsWallpaper(true);
+    wallpaper->setPreventSplitting(true);
+    wallpaper->setTouchable(false);
+
+    sp<FakeWindowHandle> leftWindow = sp<FakeWindowHandle>::make(application2, mDispatcher, "Left",
+                                                                 ui::LogicalDisplayId::DEFAULT);
+    leftWindow->setTouchableRegion(Region{{0, 0, 100, 100}});
+    leftWindow->setDupTouchToWallpaper(true);
+
+    sp<FakeWindowHandle> rightWindow =
+            sp<FakeWindowHandle>::make(application3, mDispatcher, "Right",
+                                       ui::LogicalDisplayId::DEFAULT);
+    rightWindow->setTouchableRegion(Region{{100, 0, 200, 100}});
+    rightWindow->setSlippery(true);
+    rightWindow->setWatchOutsideTouch(true);
+    rightWindow->setTrustedOverlay(true);
+
+    mDispatcher->onWindowInfosChanged(
+            {{*rightWindow->getInfo(), *leftWindow->getInfo(), *wallpaper->getInfo()}, {}, 0, 0});
+
+    const DeviceId deviceA = 3;
+    const DeviceId deviceB = 9;
+
+    // First finger from device A into right window
+    NotifyMotionArgs deviceADownArgs =
+            MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(50))
+                    .deviceId(deviceA)
+                    .build();
+
+    mDispatcher->notifyMotion(deviceADownArgs);
+    rightWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+
+    // Move the finger of device A from right window into left window. It should slip.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(80).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+
+    leftWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+    rightWindow->consumeMotionEvent(WithMotionAction(ACTION_CANCEL));
+    wallpaper->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+
+    // Finger from device B down into left window
+    NotifyMotionArgs deviceBDownArgs =
+            MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                    .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(40))
+                    .deviceId(deviceB)
+                    .build();
+    mDispatcher->notifyMotion(deviceBDownArgs);
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_CANCEL)));
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_DOWN)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_CANCEL)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_DOWN)));
+
+    rightWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_OUTSIDE)));
+
+    // Move finger from device B, still keeping it in the left window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(50))
+                                      .deviceId(deviceB)
+                                      .downTime(deviceBDownArgs.downTime)
+                                      .build());
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_MOVE)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_MOVE)));
+
+    // Lift the finger from device B
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(50))
+                                      .deviceId(deviceB)
+                                      .downTime(deviceBDownArgs.downTime)
+                                      .build());
+    leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_UP)));
+    wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_UP)));
+
+    // Move the finger of device A, keeping it in the left window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+    // This device was already canceled, so MOVE events will not be arriving to the windows from it.
+
+    // Second finger down from device A, into the right window. It should be split into:
+    // MOVE for the left window (due to existing implementation) + a DOWN into the right window
+    // Wallpaper will not receive this new pointer, and it will only get the MOVE event.
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(140).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+    rightWindow->consumeMotionEvent(
+            AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_DOWN), WithPointerId(0, 1)));
+
+    // Lift up the second finger.
+    mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .pointer(PointerBuilder(1, ToolType::FINGER).x(140).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+
+    rightWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+                                      .deviceId(deviceA)
+                                      .downTime(deviceADownArgs.downTime)
+                                      .build());
+    rightWindow->assertNoEvents();
+}
+
+/**
  * Two windows: left and right. The left window has PREVENT_SPLITTING input config. Device A sends a
  * down event to the right window. Device B sends a down event to the left window, and then a
  * POINTER_DOWN event to the right window. However, since the left window prevents splitting, the
@@ -5365,6 +5985,7 @@
  * This test attempts to reproduce a crash.
  */
 TEST_F(InputDispatcherTest, MultiDeviceTwoWindowsPreventSplitting) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> leftWindow =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Left window (prevent splitting)",
@@ -8111,6 +8732,7 @@
  * the previous window should receive this event and not be dropped.
  */
 TEST_F(InputDispatcherMultiDeviceTest, SingleDevicePointerDownEventRetentionWithoutWindowTarget) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window = sp<FakeWindowHandle>::make(application, mDispatcher, "Window",
                                                              ui::LogicalDisplayId::DEFAULT);
diff --git a/services/inputflinger/tests/InputMapperTest.cpp b/services/inputflinger/tests/InputMapperTest.cpp
index ff0de83..7dff144 100644
--- a/services/inputflinger/tests/InputMapperTest.cpp
+++ b/services/inputflinger/tests/InputMapperTest.cpp
@@ -54,16 +54,15 @@
 
 void InputMapperUnitTest::setupAxis(int axis, bool valid, int32_t min, int32_t max,
                                     int32_t resolution) {
-    EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis, _))
-            .WillRepeatedly([=](int32_t, int32_t, RawAbsoluteAxisInfo* outAxisInfo) {
-                outAxisInfo->valid = valid;
-                outAxisInfo->minValue = min;
-                outAxisInfo->maxValue = max;
-                outAxisInfo->flat = 0;
-                outAxisInfo->fuzz = 0;
-                outAxisInfo->resolution = resolution;
-                return valid ? OK : -1;
-            });
+    EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, axis))
+            .WillRepeatedly(Return(valid ? std::optional<RawAbsoluteAxisInfo>{{
+                                                   .minValue = min,
+                                                   .maxValue = max,
+                                                   .flat = 0,
+                                                   .fuzz = 0,
+                                                   .resolution = resolution,
+                                           }}
+                                         : std::nullopt));
 }
 
 void InputMapperUnitTest::expectScanCodes(bool present, std::set<int> scanCodes) {
@@ -87,6 +86,13 @@
     }
 }
 
+void InputMapperUnitTest::setSwitchState(int32_t state, std::set<int32_t> switchCodes) {
+    for (const auto& switchCode : switchCodes) {
+        EXPECT_CALL(mMockEventHub, getSwitchState(EVENTHUB_ID, switchCode))
+                .WillRepeatedly(testing::Return(static_cast<int>(state)));
+    }
+}
+
 std::list<NotifyArgs> InputMapperUnitTest::process(int32_t type, int32_t code, int32_t value) {
     nsecs_t when = systemTime(SYSTEM_TIME_MONOTONIC);
     return process(when, type, code, value);
diff --git a/services/inputflinger/tests/InputMapperTest.h b/services/inputflinger/tests/InputMapperTest.h
index 4271a70..fc27e4f 100644
--- a/services/inputflinger/tests/InputMapperTest.h
+++ b/services/inputflinger/tests/InputMapperTest.h
@@ -51,6 +51,8 @@
 
     void setKeyCodeState(KeyState state, std::set<int> keyCodes);
 
+    void setSwitchState(int32_t state, std::set<int32_t> switchCodes);
+
     std::list<NotifyArgs> process(int32_t type, int32_t code, int32_t value);
     std::list<NotifyArgs> process(nsecs_t when, int32_t type, int32_t code, int32_t value);
 
diff --git a/services/inputflinger/tests/InputProcessor_test.cpp b/services/inputflinger/tests/InputProcessor_test.cpp
index f7e5e67..d4c5a00 100644
--- a/services/inputflinger/tests/InputProcessor_test.cpp
+++ b/services/inputflinger/tests/InputProcessor_test.cpp
@@ -63,20 +63,6 @@
     void SetUp() override { mProcessor = std::make_unique<InputProcessor>(mTestListener); }
 };
 
-/**
- * Create a basic configuration change and send it to input processor.
- * Expect that the event is received by the next input stage, unmodified.
- */
-TEST_F(InputProcessorTest, SendToNextStage_NotifyConfigurationChangedArgs) {
-    // Create a basic configuration change and send to processor
-    NotifyConfigurationChangedArgs args(/*sequenceNum=*/1, /*eventTime=*/2);
-
-    mProcessor->notifyConfigurationChanged(args);
-    NotifyConfigurationChangedArgs outArgs;
-    ASSERT_NO_FATAL_FAILURE(mTestListener.assertNotifyConfigurationChangedWasCalled(&outArgs));
-    ASSERT_EQ(args, outArgs);
-}
-
 TEST_F(InputProcessorTest, SendToNextStage_NotifyKeyArgs) {
     // Create a basic key event and send to processor
     NotifyKeyArgs args(/*sequenceNum=*/1, /*eventTime=*/2, /*readTime=*/21, /*deviceId=*/3,
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index e6367b7..4a9e893 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -24,19 +24,16 @@
 #include <InputReader.h>
 #include <InputReaderBase.h>
 #include <InputReaderFactory.h>
-#include <JoystickInputMapper.h>
 #include <KeyboardInputMapper.h>
 #include <MultiTouchInputMapper.h>
 #include <NotifyArgsBuilders.h>
 #include <PeripheralController.h>
 #include <SensorInputMapper.h>
 #include <SingleTouchInputMapper.h>
-#include <SwitchInputMapper.h>
 #include <TestEventMatchers.h>
 #include <TestInputListener.h>
 #include <TouchInputMapper.h>
 #include <UinputDevice.h>
-#include <VibratorInputMapper.h>
 #include <android-base/thread_annotations.h>
 #include <com_android_input_flags.h>
 #include <ftl/enum.h>
@@ -56,6 +53,7 @@
 
 using namespace ftl::flag_operators;
 using testing::AllOf;
+using testing::VariantWith;
 using std::chrono_literals::operator""ms;
 using std::chrono_literals::operator""s;
 
@@ -623,7 +621,6 @@
         if (configuration) {
             mFakeEventHub->addConfigurationMap(eventHubId, configuration);
         }
-        mFakeEventHub->finishDeviceScan();
         mReader->loopOnce();
         mReader->loopOnce();
         ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
@@ -757,8 +754,6 @@
     mReader->pushNextDevice(device);
     ASSERT_NO_FATAL_FAILURE(addDevice(eventHubId, "fake", deviceClass, nullptr));
 
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasCalled(nullptr));
-
     NotifyDeviceResetArgs resetArgs;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyDeviceResetWasCalled(&resetArgs));
     ASSERT_EQ(deviceId, resetArgs.deviceId);
@@ -774,7 +769,6 @@
     disableDevice(deviceId);
     mReader->loopOnce();
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyDeviceResetWasNotCalled());
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasNotCalled());
     ASSERT_EQ(device->isEnabled(), false);
 
     enableDevice(deviceId);
@@ -959,16 +953,6 @@
     ASSERT_TRUE(flags[0] && flags[1] && !flags[2] && !flags[3]);
 }
 
-TEST_F(InputReaderTest, LoopOnce_WhenDeviceScanFinished_SendsConfigurationChanged) {
-    constexpr int32_t eventHubId = 1;
-    addDevice(eventHubId, "ignored", InputDeviceClass::KEYBOARD, nullptr);
-
-    NotifyConfigurationChangedArgs args;
-
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasCalled(&args));
-    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-}
-
 TEST_F(InputReaderTest, LoopOnce_ForwardsRawEventsToMappers) {
     constexpr int32_t deviceId = END_RESERVED_ID + 1000;
     constexpr ftl::Flags<InputDeviceClass> deviceClass = InputDeviceClass::KEYBOARD;
@@ -1073,7 +1057,6 @@
     // The device is added after the input port associations are processed since
     // we do not yet support dynamic device-to-display associations.
     ASSERT_NO_FATAL_FAILURE(addDevice(eventHubId, "fake", deviceClass, nullptr));
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasCalled());
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyDeviceResetWasCalled());
     ASSERT_NO_FATAL_FAILURE(mapper.assertConfigureWasCalled());
 
@@ -1103,8 +1086,6 @@
     ASSERT_NO_FATAL_FAILURE(addDevice(eventHubIds[0], "fake1", deviceClass, nullptr));
     ASSERT_NO_FATAL_FAILURE(addDevice(eventHubIds[1], "fake2", deviceClass, nullptr));
 
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasCalled(nullptr));
-
     NotifyDeviceResetArgs resetArgs;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyDeviceResetWasCalled(&resetArgs));
     ASSERT_EQ(deviceId, resetArgs.deviceId);
@@ -1476,9 +1457,8 @@
         // Since this test is run on a real device, all the input devices connected
         // to the test device will show up in mReader. We wait for those input devices to
         // show up before beginning the tests.
-        ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
         ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyInputDevicesChangedWasCalled());
-        ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
+        ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
     }
 };
 
@@ -1498,12 +1478,10 @@
     // consider it as a valid device.
     std::unique_ptr<UinputDevice> invalidDevice = createUinputDevice<InvalidUinputDevice>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesNotChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasNotCalled());
     ASSERT_EQ(numDevices, mFakePolicy->getInputDevices().size());
 
     invalidDevice.reset();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesNotChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasNotCalled());
     ASSERT_EQ(numDevices, mFakePolicy->getInputDevices().size());
 }
 
@@ -1512,7 +1490,6 @@
 
     std::unique_ptr<UinputHomeKey> keyboard = createUinputDevice<UinputHomeKey>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     ASSERT_EQ(initialNumDevices + 1, mFakePolicy->getInputDevices().size());
 
     const auto device = waitForDevice(keyboard->getName());
@@ -1523,7 +1500,6 @@
 
     keyboard.reset();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     ASSERT_EQ(initialNumDevices, mFakePolicy->getInputDevices().size());
 }
 
@@ -1531,21 +1507,14 @@
     std::unique_ptr<UinputHomeKey> keyboard = createUinputDevice<UinputHomeKey>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
 
-    NotifyConfigurationChangedArgs configChangedArgs;
-    ASSERT_NO_FATAL_FAILURE(
-            mTestListener->assertNotifyConfigurationChangedWasCalled(&configChangedArgs));
-    int32_t prevId = configChangedArgs.id;
-    nsecs_t prevTimestamp = configChangedArgs.eventTime;
-
     NotifyKeyArgs keyArgs;
     keyboard->pressAndReleaseHomeKey();
     ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, keyArgs.action);
-    ASSERT_NE(prevId, keyArgs.id);
-    prevId = keyArgs.id;
-    ASSERT_LE(prevTimestamp, keyArgs.eventTime);
     ASSERT_LE(keyArgs.eventTime, keyArgs.readTime);
-    prevTimestamp = keyArgs.eventTime;
+
+    int32_t prevId = keyArgs.id;
+    nsecs_t prevTimestamp = keyArgs.eventTime;
 
     ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyKeyWasCalled(&keyArgs));
     ASSERT_EQ(AKEY_EVENT_ACTION_UP, keyArgs.action);
@@ -1668,7 +1637,6 @@
 
         mDevice = createUinputDevice<UinputTouchScreen>(Rect(0, 0, DISPLAY_WIDTH, DISPLAY_HEIGHT));
         ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-        ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
         const auto info = waitForDevice(mDevice->getName());
         ASSERT_TRUE(info);
         mDeviceInfo = *info;
@@ -1737,7 +1705,6 @@
                                      UNIQUE_ID, isInputPortAssociation ? DISPLAY_PORT : NO_PORT,
                                      ViewportType::INTERNAL);
         ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-        ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
         const auto info = waitForDevice(mDevice->getName());
         ASSERT_TRUE(info);
         mDeviceInfo = *info;
@@ -2070,7 +2037,6 @@
     // Connecting an external stylus mid-gesture should not interrupt the ongoing gesture stream.
     auto externalStylus = createUinputDevice<UinputExternalStylus>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     const auto stylusInfo = waitForDevice(externalStylus->getName());
     ASSERT_TRUE(stylusInfo);
 
@@ -2083,7 +2049,6 @@
     // Disconnecting an external stylus mid-gesture should not interrupt the ongoing gesture stream.
     externalStylus.reset();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyMotionWasNotCalled());
 
     // Up
@@ -2141,7 +2106,6 @@
         mStylusDeviceLifecycleTracker = createUinputDevice<T>();
         mStylus = mStylusDeviceLifecycleTracker.get();
         ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-        ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
         const auto info = waitForDevice(mStylus->getName());
         ASSERT_TRUE(info);
         mStylusInfo = *info;
@@ -2411,7 +2375,6 @@
     std::unique_ptr<UinputExternalStylusWithPressure> stylus =
             createUinputDevice<UinputExternalStylusWithPressure>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     const auto stylusInfo = waitForDevice(stylus->getName());
     ASSERT_TRUE(stylusInfo);
 
@@ -2429,7 +2392,6 @@
     std::unique_ptr<UinputExternalStylusWithPressure> stylus =
             createUinputDevice<UinputExternalStylusWithPressure>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     const auto stylusInfo = waitForDevice(stylus->getName());
     ASSERT_TRUE(stylusInfo);
 
@@ -2475,7 +2437,6 @@
     std::unique_ptr<UinputExternalStylusWithPressure> stylus =
             createUinputDevice<UinputExternalStylusWithPressure>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     const auto stylusInfo = waitForDevice(stylus->getName());
     ASSERT_TRUE(stylusInfo);
 
@@ -2555,7 +2516,6 @@
     // touch pointers.
     std::unique_ptr<UinputExternalStylus> stylus = createUinputDevice<UinputExternalStylus>();
     ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
-    ASSERT_NO_FATAL_FAILURE(mTestListener->assertNotifyConfigurationChangedWasCalled());
     const auto stylusInfo = waitForDevice(stylus->getName());
     ASSERT_TRUE(stylusInfo);
 
@@ -3057,106 +3017,6 @@
     mapper.assertProcessWasCalled();
 }
 
-// --- SwitchInputMapperTest ---
-
-class SwitchInputMapperTest : public InputMapperTest {
-protected:
-};
-
-TEST_F(SwitchInputMapperTest, GetSources) {
-    SwitchInputMapper& mapper = constructAndAddMapper<SwitchInputMapper>();
-
-    ASSERT_EQ(uint32_t(AINPUT_SOURCE_SWITCH), mapper.getSources());
-}
-
-TEST_F(SwitchInputMapperTest, GetSwitchState) {
-    SwitchInputMapper& mapper = constructAndAddMapper<SwitchInputMapper>();
-
-    mFakeEventHub->setSwitchState(EVENTHUB_ID, SW_LID, 1);
-    ASSERT_EQ(1, mapper.getSwitchState(AINPUT_SOURCE_ANY, SW_LID));
-
-    mFakeEventHub->setSwitchState(EVENTHUB_ID, SW_LID, 0);
-    ASSERT_EQ(0, mapper.getSwitchState(AINPUT_SOURCE_ANY, SW_LID));
-}
-
-TEST_F(SwitchInputMapperTest, Process) {
-    SwitchInputMapper& mapper = constructAndAddMapper<SwitchInputMapper>();
-    std::list<NotifyArgs> out;
-    out = process(mapper, ARBITRARY_TIME, READ_TIME, EV_SW, SW_LID, 1);
-    ASSERT_TRUE(out.empty());
-    out = process(mapper, ARBITRARY_TIME, READ_TIME, EV_SW, SW_JACK_PHYSICAL_INSERT, 1);
-    ASSERT_TRUE(out.empty());
-    out = process(mapper, ARBITRARY_TIME, READ_TIME, EV_SW, SW_HEADPHONE_INSERT, 0);
-    ASSERT_TRUE(out.empty());
-    out = process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
-
-    ASSERT_EQ(1u, out.size());
-    const NotifySwitchArgs& args = std::get<NotifySwitchArgs>(*out.begin());
-    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-    ASSERT_EQ((1U << SW_LID) | (1U << SW_JACK_PHYSICAL_INSERT), args.switchValues);
-    ASSERT_EQ((1U << SW_LID) | (1U << SW_JACK_PHYSICAL_INSERT) | (1 << SW_HEADPHONE_INSERT),
-            args.switchMask);
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-}
-
-// --- VibratorInputMapperTest ---
-class VibratorInputMapperTest : public InputMapperTest {
-protected:
-    void SetUp() override { InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::VIBRATOR); }
-};
-
-TEST_F(VibratorInputMapperTest, GetSources) {
-    VibratorInputMapper& mapper = constructAndAddMapper<VibratorInputMapper>();
-
-    ASSERT_EQ(AINPUT_SOURCE_UNKNOWN, mapper.getSources());
-}
-
-TEST_F(VibratorInputMapperTest, GetVibratorIds) {
-    VibratorInputMapper& mapper = constructAndAddMapper<VibratorInputMapper>();
-
-    ASSERT_EQ(mapper.getVibratorIds().size(), 2U);
-}
-
-TEST_F(VibratorInputMapperTest, Vibrate) {
-    constexpr uint8_t DEFAULT_AMPLITUDE = 192;
-    constexpr int32_t VIBRATION_TOKEN = 100;
-    VibratorInputMapper& mapper = constructAndAddMapper<VibratorInputMapper>();
-
-    VibrationElement pattern(2);
-    VibrationSequence sequence(2);
-    pattern.duration = std::chrono::milliseconds(200);
-    pattern.channels = {{/*vibratorId=*/0, DEFAULT_AMPLITUDE / 2},
-                        {/*vibratorId=*/1, DEFAULT_AMPLITUDE}};
-    sequence.addElement(pattern);
-    pattern.duration = std::chrono::milliseconds(500);
-    pattern.channels = {{/*vibratorId=*/0, DEFAULT_AMPLITUDE / 4},
-                        {/*vibratorId=*/1, DEFAULT_AMPLITUDE}};
-    sequence.addElement(pattern);
-
-    std::vector<int64_t> timings = {0, 1};
-    std::vector<uint8_t> amplitudes = {DEFAULT_AMPLITUDE, DEFAULT_AMPLITUDE / 2};
-
-    ASSERT_FALSE(mapper.isVibrating());
-    // Start vibrating
-    std::list<NotifyArgs> out = mapper.vibrate(sequence, /*repeat=*/-1, VIBRATION_TOKEN);
-    ASSERT_TRUE(mapper.isVibrating());
-    // Verify vibrator state listener was notified.
-    mReader->loopOnce();
-    ASSERT_EQ(1u, out.size());
-    const NotifyVibratorStateArgs& vibrateArgs = std::get<NotifyVibratorStateArgs>(*out.begin());
-    ASSERT_EQ(DEVICE_ID, vibrateArgs.deviceId);
-    ASSERT_TRUE(vibrateArgs.isOn);
-    // Stop vibrating
-    out = mapper.cancelVibrate(VIBRATION_TOKEN);
-    ASSERT_FALSE(mapper.isVibrating());
-    // Verify vibrator state listener was notified.
-    mReader->loopOnce();
-    ASSERT_EQ(1u, out.size());
-    const NotifyVibratorStateArgs& cancelArgs = std::get<NotifyVibratorStateArgs>(*out.begin());
-    ASSERT_EQ(DEVICE_ID, cancelArgs.deviceId);
-    ASSERT_FALSE(cancelArgs.isOn);
-}
-
 // --- SensorInputMapperTest ---
 
 class SensorInputMapperTest : public InputMapperTest {
@@ -4532,15 +4392,15 @@
     void prepareButtons();
     void prepareAxes(int axes);
 
-    void processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
-    void processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
-    void processUp(SingleTouchInputMapper& mappery);
-    void processPressure(SingleTouchInputMapper& mapper, int32_t pressure);
-    void processToolMajor(SingleTouchInputMapper& mapper, int32_t toolMajor);
-    void processDistance(SingleTouchInputMapper& mapper, int32_t distance);
-    void processTilt(SingleTouchInputMapper& mapper, int32_t tiltX, int32_t tiltY);
-    void processKey(SingleTouchInputMapper& mapper, int32_t code, int32_t value);
-    void processSync(SingleTouchInputMapper& mapper);
+    std::list<NotifyArgs> processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
+    std::list<NotifyArgs> processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y);
+    std::list<NotifyArgs> processUp(SingleTouchInputMapper& mappery);
+    std::list<NotifyArgs> processPressure(SingleTouchInputMapper& mapper, int32_t pressure);
+    std::list<NotifyArgs> processToolMajor(SingleTouchInputMapper& mapper, int32_t toolMajor);
+    std::list<NotifyArgs> processDistance(SingleTouchInputMapper& mapper, int32_t distance);
+    std::list<NotifyArgs> processTilt(SingleTouchInputMapper& mapper, int32_t tiltX, int32_t tiltY);
+    std::list<NotifyArgs> processKey(SingleTouchInputMapper& mapper, int32_t code, int32_t value);
+    std::list<NotifyArgs> processSync(SingleTouchInputMapper& mapper);
 };
 
 void SingleTouchInputMapperTest::prepareButtons() {
@@ -4570,47 +4430,57 @@
     }
 }
 
-void SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processDown(SingleTouchInputMapper& mapper,
+                                                              int32_t x, int32_t y) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 1);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper, int32_t x, int32_t y) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processMove(SingleTouchInputMapper& mapper,
+                                                              int32_t x, int32_t y) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_X, x);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_Y, y);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processUp(SingleTouchInputMapper& mapper) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, BTN_TOUCH, 0);
 }
 
-void SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper, int32_t pressure) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processPressure(SingleTouchInputMapper& mapper,
+                                                                  int32_t pressure) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_PRESSURE, pressure);
 }
 
-void SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
-                                                  int32_t toolMajor) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processToolMajor(SingleTouchInputMapper& mapper,
+                                                                   int32_t toolMajor) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TOOL_WIDTH, toolMajor);
 }
 
-void SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper, int32_t distance) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processDistance(SingleTouchInputMapper& mapper,
+                                                                  int32_t distance) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_DISTANCE, distance);
 }
 
-void SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper, int32_t tiltX,
-                                             int32_t tiltY) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processTilt(SingleTouchInputMapper& mapper,
+                                                              int32_t tiltX, int32_t tiltY) {
+    std::list<NotifyArgs> args;
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_X, tiltX);
+    args += process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, ABS_TILT_Y, tiltY);
+    return args;
 }
 
-void SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper, int32_t code,
-                                            int32_t value) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processKey(SingleTouchInputMapper& mapper,
+                                                             int32_t code, int32_t value) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, code, value);
 }
 
-void SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
+std::list<NotifyArgs> SingleTouchInputMapperTest::processSync(SingleTouchInputMapper& mapper) {
+    return process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
 }
 
 TEST_F(SingleTouchInputMapperTest, GetSources_WhenDeviceTypeIsNotSpecifiedAndNotACursor_ReturnsPointer) {
@@ -4701,6 +4571,42 @@
     ASSERT_FALSE(flags[1]);
 }
 
+TEST_F(SingleTouchInputMapperTest, DeviceTypeChange_RecalculatesRawToDisplayTransform) {
+    prepareDisplay(ui::ROTATION_0);
+    prepareAxes(POSITION);
+    addConfigurationProperty("touch.deviceType", "touchScreen");
+    SingleTouchInputMapper& mapper = constructAndAddMapper<SingleTouchInputMapper>();
+
+    const int32_t x = 900;
+    const int32_t y = 75;
+    std::list<NotifyArgs> args;
+    args += processDown(mapper, x, y);
+    args += processSync(mapper);
+
+    // Assert that motion event is received in display coordinate space for deviceType touchScreen.
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                              WithCoords(toDisplayX(x), toDisplayY(y))))));
+
+    // Add device type association after the device was created.
+    mFakePolicy->addDeviceTypeAssociation(DEVICE_LOCATION, "touchNavigation");
+    // Send update to the mapper.
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                               InputReaderConfiguration::Change::DEVICE_TYPE /*changes*/);
+
+    args.clear();
+    args += processDown(mapper, x, y);
+    args += processSync(mapper);
+
+    // Assert that motion event is received in raw coordinate space for deviceType touchNavigation.
+    ASSERT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                              WithCoords(x - RAW_X_MIN, y - RAW_Y_MIN)))));
+}
+
 TEST_F(SingleTouchInputMapperTest, Process_WhenVirtualKeyIsPressedAndReleasedNormally_SendsKeyDownAndKeyUp) {
     addConfigurationProperty("touch.deviceType", "touchScreen");
     prepareDisplay(ui::ROTATION_0);
@@ -6290,7 +6196,7 @@
     SingleTouchInputMapper& mapper = constructAndAddMapper<SingleTouchInputMapper>();
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyDeviceResetWasCalled());
 
-    ASSERT_EQ(AINPUT_SOURCE_TOUCH_NAVIGATION, mapper.getSources());
+    ASSERT_EQ(AINPUT_SOURCE_TOUCH_NAVIGATION | AINPUT_SOURCE_TOUCHPAD, mapper.getSources());
 }
 
 TEST_F(SingleTouchInputMapperTest, WhenDeviceTypeIsChangedToTouchNavigation_updatesDeviceType) {
@@ -6313,7 +6219,7 @@
                                InputReaderConfiguration::Change::DEVICE_TYPE /*changes*/);
 
     // Check whether device type update was successful.
-    ASSERT_EQ(AINPUT_SOURCE_TOUCH_NAVIGATION, mDevice->getSources());
+    ASSERT_EQ(AINPUT_SOURCE_TOUCH_NAVIGATION | AINPUT_SOURCE_TOUCHPAD, mDevice->getSources());
 }
 
 TEST_F(SingleTouchInputMapperTest, HoverEventsOutsidePhysicalFrameAreIgnored) {
@@ -6769,15 +6675,27 @@
 
 class ExternalStylusFusionTest : public SingleTouchInputMapperTest {
 public:
-    SingleTouchInputMapper& initializeInputMapperWithExternalStylus() {
+    void SetUp() override {
+        SingleTouchInputMapperTest::SetUp();
+        mExternalStylusDeviceInfo = {};
+        mStylusState = {};
+    }
+
+    SingleTouchInputMapper& initializeInputMapperWithExternalStylus(bool supportsPressure = true) {
         addConfigurationProperty("touch.deviceType", "touchScreen");
         prepareDisplay(ui::ROTATION_0);
         prepareButtons();
         prepareAxes(POSITION);
         auto& mapper = constructAndAddMapper<SingleTouchInputMapper>();
 
+        if (supportsPressure) {
+            mExternalStylusDeviceInfo.addMotionRange(AMOTION_EVENT_AXIS_PRESSURE,
+                                                     AINPUT_SOURCE_STYLUS, 0.0f, 1.0f, 0.0f, 0.0f,
+                                                     0.0f);
+            mStylusState.pressure = 0.f;
+        }
+
         mStylusState.when = ARBITRARY_TIME;
-        mStylusState.pressure = 0.f;
         mStylusState.toolType = ToolType::STYLUS;
         mReader->getContext()->setExternalStylusDevices({mExternalStylusDeviceInfo});
         configureDevice(InputReaderConfiguration::Change::EXTERNAL_STYLUS_PRESENCE);
@@ -6885,11 +6803,17 @@
     InputDeviceInfo mExternalStylusDeviceInfo{};
 };
 
-TEST_F(ExternalStylusFusionTest, UsesBluetoothStylusSource) {
+TEST_F(ExternalStylusFusionTest, UsesBluetoothStylusSourceWithPressure) {
     SingleTouchInputMapper& mapper = initializeInputMapperWithExternalStylus();
     ASSERT_EQ(STYLUS_FUSION_SOURCE, mapper.getSources());
 }
 
+TEST_F(ExternalStylusFusionTest, DoesNotUseBluetoothStylusSourceWithoutPressure) {
+    SingleTouchInputMapper& mapper =
+            initializeInputMapperWithExternalStylus(/*supportsPressure=*/false);
+    ASSERT_EQ(AINPUT_SOURCE_TOUCHSCREEN, mapper.getSources());
+}
+
 TEST_F(ExternalStylusFusionTest, UnsuccessfulFusion) {
     SingleTouchInputMapper& mapper = initializeInputMapperWithExternalStylus();
     ASSERT_NO_FATAL_FAILURE(testUnsuccessfulFusionGesture(mapper));
@@ -10156,67 +10080,6 @@
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasNotCalled());
 }
 
-// --- JoystickInputMapperTest ---
-
-class JoystickInputMapperTest : public InputMapperTest {
-protected:
-    static const int32_t RAW_X_MIN;
-    static const int32_t RAW_X_MAX;
-    static const int32_t RAW_Y_MIN;
-    static const int32_t RAW_Y_MAX;
-
-    void SetUp() override {
-        InputMapperTest::SetUp(InputDeviceClass::JOYSTICK | InputDeviceClass::EXTERNAL);
-    }
-    void prepareAxes() {
-        mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_X, RAW_X_MIN, RAW_X_MAX, 0, 0);
-        mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_Y, RAW_Y_MIN, RAW_Y_MAX, 0, 0);
-    }
-
-    void processAxis(JoystickInputMapper& mapper, int32_t axis, int32_t value) {
-        process(mapper, ARBITRARY_TIME, READ_TIME, EV_ABS, axis, value);
-    }
-
-    void processSync(JoystickInputMapper& mapper) {
-        process(mapper, ARBITRARY_TIME, READ_TIME, EV_SYN, SYN_REPORT, 0);
-    }
-
-    void prepareVirtualDisplay(ui::Rotation orientation) {
-        setDisplayInfoAndReconfigure(VIRTUAL_DISPLAY_ID, VIRTUAL_DISPLAY_WIDTH,
-                                     VIRTUAL_DISPLAY_HEIGHT, orientation, VIRTUAL_DISPLAY_UNIQUE_ID,
-                                     NO_PORT, ViewportType::VIRTUAL);
-    }
-};
-
-const int32_t JoystickInputMapperTest::RAW_X_MIN = -32767;
-const int32_t JoystickInputMapperTest::RAW_X_MAX = 32767;
-const int32_t JoystickInputMapperTest::RAW_Y_MIN = -32767;
-const int32_t JoystickInputMapperTest::RAW_Y_MAX = 32767;
-
-TEST_F(JoystickInputMapperTest, Configure_AssignsDisplayUniqueId) {
-    prepareAxes();
-    JoystickInputMapper& mapper = constructAndAddMapper<JoystickInputMapper>();
-
-    mFakePolicy->addInputUniqueIdAssociation(DEVICE_LOCATION, VIRTUAL_DISPLAY_UNIQUE_ID);
-
-    prepareVirtualDisplay(ui::ROTATION_0);
-
-    // Send an axis event
-    processAxis(mapper, ABS_X, 100);
-    processSync(mapper);
-
-    NotifyMotionArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
-    ASSERT_EQ(VIRTUAL_DISPLAY_ID, args.displayId);
-
-    // Send another axis event
-    processAxis(mapper, ABS_Y, 100);
-    processSync(mapper);
-
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&args));
-    ASSERT_EQ(VIRTUAL_DISPLAY_ID, args.displayId);
-}
-
 // --- PeripheralControllerTest ---
 
 class PeripheralControllerTest : public testing::Test {
diff --git a/services/inputflinger/tests/InterfaceMocks.h b/services/inputflinger/tests/InterfaceMocks.h
index 8a15d07..5a3d79d 100644
--- a/services/inputflinger/tests/InterfaceMocks.h
+++ b/services/inputflinger/tests/InterfaceMocks.h
@@ -92,8 +92,8 @@
     MOCK_METHOD(InputDeviceIdentifier, getDeviceIdentifier, (int32_t deviceId), (const));
     MOCK_METHOD(int32_t, getDeviceControllerNumber, (int32_t deviceId), (const));
     MOCK_METHOD(std::optional<PropertyMap>, getConfiguration, (int32_t deviceId), (const));
-    MOCK_METHOD(status_t, getAbsoluteAxisInfo,
-                (int32_t deviceId, int axis, RawAbsoluteAxisInfo* outAxisInfo), (const));
+    MOCK_METHOD(std::optional<RawAbsoluteAxisInfo>, getAbsoluteAxisInfo,
+                (int32_t deviceId, int axis), (const));
     MOCK_METHOD(bool, hasRelativeAxis, (int32_t deviceId, int axis), (const));
     MOCK_METHOD(bool, hasInputProperty, (int32_t deviceId, int property), (const));
     MOCK_METHOD(bool, hasMscEvent, (int32_t deviceId, int mscEvent), (const));
@@ -132,7 +132,7 @@
     MOCK_METHOD(int32_t, getKeyCodeState, (int32_t deviceId, int32_t keyCode), (const, override));
     MOCK_METHOD(int32_t, getSwitchState, (int32_t deviceId, int32_t sw), (const, override));
 
-    MOCK_METHOD(status_t, getAbsoluteAxisValue, (int32_t deviceId, int32_t axis, int32_t* outValue),
+    MOCK_METHOD(std::optional<int32_t>, getAbsoluteAxisValue, (int32_t deviceId, int32_t axis),
                 (const, override));
     MOCK_METHOD(base::Result<std::vector<int32_t>>, getMtSlotValues,
                 (int32_t deviceId, int32_t axis, size_t slotCount), (const, override));
@@ -188,6 +188,7 @@
     MOCK_METHOD(void, notifyPointerDisplayIdChanged,
                 (ui::LogicalDisplayId displayId, const FloatPoint& position), (override));
     MOCK_METHOD(bool, isInputMethodConnectionActive, (), (override));
+    MOCK_METHOD(void, notifyMouseCursorFadedOnTyping, (), (override));
 };
 
 class MockInputDevice : public InputDevice {
@@ -197,6 +198,7 @@
           : InputDevice(context, id, generation, identifier) {}
 
     MOCK_METHOD(uint32_t, getSources, (), (const, override));
+    MOCK_METHOD(std::optional<DisplayViewport>, getAssociatedViewport, (), (const));
     MOCK_METHOD(bool, isEnabled, (), ());
 
     MOCK_METHOD(void, dump, (std::string& dump, const std::string& eventHubDevStr), ());
diff --git a/services/inputflinger/tests/JoystickInputMapper_test.cpp b/services/inputflinger/tests/JoystickInputMapper_test.cpp
new file mode 100644
index 0000000..adebd72
--- /dev/null
+++ b/services/inputflinger/tests/JoystickInputMapper_test.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "JoystickInputMapper.h"
+
+#include <list>
+#include <optional>
+
+#include <EventHub.h>
+#include <NotifyArgs.h>
+#include <ftl/flags.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <input/DisplayViewport.h>
+#include <linux/input-event-codes.h>
+#include <ui/LogicalDisplayId.h>
+
+#include "InputMapperTest.h"
+#include "TestConstants.h"
+#include "TestEventMatchers.h"
+
+namespace android {
+
+using namespace ftl::flag_operators;
+using testing::ElementsAre;
+using testing::IsEmpty;
+using testing::Return;
+using testing::VariantWith;
+
+class JoystickInputMapperTest : public InputMapperUnitTest {
+protected:
+    void SetUp() override {
+        InputMapperUnitTest::SetUp();
+        EXPECT_CALL(mMockEventHub, getDeviceClasses(EVENTHUB_ID))
+                .WillRepeatedly(Return(InputDeviceClass::JOYSTICK | InputDeviceClass::EXTERNAL));
+
+        // The mapper requests info on all ABS axis IDs, including ones which aren't actually used
+        // (e.g. in the range from 0x0b (ABS_BRAKE) to 0x0f (ABS_HAT0X)), so just return nullopt for
+        // all axes we don't explicitly set up below.
+        EXPECT_CALL(mMockEventHub, getAbsoluteAxisInfo(EVENTHUB_ID, testing::_))
+                .WillRepeatedly(Return(std::nullopt));
+
+        setupAxis(ABS_X, /*valid=*/true, /*min=*/-32767, /*max=*/32767, /*resolution=*/0);
+        setupAxis(ABS_Y, /*valid=*/true, /*min=*/-32767, /*max=*/32767, /*resolution=*/0);
+    }
+};
+
+TEST_F(JoystickInputMapperTest, Configure_AssignsDisplayUniqueId) {
+    DisplayViewport viewport;
+    viewport.displayId = ui::LogicalDisplayId{1};
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(viewport));
+    mMapper = createInputMapper<JoystickInputMapper>(*mDeviceContext,
+                                                     mFakePolicy->getReaderConfiguration());
+
+    std::list<NotifyArgs> out;
+
+    // Send an axis event
+    out = process(EV_ABS, ABS_X, 100);
+    ASSERT_THAT(out, IsEmpty());
+    out = process(EV_SYN, SYN_REPORT, 0);
+    ASSERT_THAT(out, ElementsAre(VariantWith<NotifyMotionArgs>(WithDisplayId(viewport.displayId))));
+
+    // Send another axis event
+    out = process(EV_ABS, ABS_Y, 100);
+    ASSERT_THAT(out, IsEmpty());
+    out = process(EV_SYN, SYN_REPORT, 0);
+    ASSERT_THAT(out, ElementsAre(VariantWith<NotifyMotionArgs>(WithDisplayId(viewport.displayId))));
+}
+
+} // namespace android
diff --git a/services/inputflinger/tests/KeyboardInputMapper_test.cpp b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
index 4d322e9..88c25d3 100644
--- a/services/inputflinger/tests/KeyboardInputMapper_test.cpp
+++ b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
@@ -70,48 +70,8 @@
         mMapper = createInputMapper<KeyboardInputMapper>(*mDeviceContext, mReaderConfiguration,
                                                          AINPUT_SOURCE_KEYBOARD);
     }
-
-    void testTouchpadTapStateForKeys(const std::vector<int32_t>& keyCodes,
-                                     const bool expectPrevent) {
-        if (expectPrevent) {
-            EXPECT_CALL(mMockInputReaderContext, setPreventingTouchpadTaps(true))
-                    .Times(keyCodes.size());
-        }
-        for (int32_t keyCode : keyCodes) {
-            process(EV_KEY, keyCode, 1);
-            process(EV_SYN, SYN_REPORT, 0);
-            process(EV_KEY, keyCode, 0);
-            process(EV_SYN, SYN_REPORT, 0);
-        }
-    }
 };
 
-/**
- * Touchpad tap should not be disabled if there is no active Input Method Connection
- */
-TEST_F(KeyboardInputMapperUnitTest, KeystrokesWithoutIMeConnectionDontDisableTouchpadTap) {
-    testTouchpadTapStateForKeys({KEY_0, KEY_A, KEY_LEFTCTRL}, /* expectPrevent= */ false);
-}
-
-/**
- * Touchpad tap should be disabled if there is a active Input Method Connection
- */
-TEST_F(KeyboardInputMapperUnitTest, AlphanumericKeystrokesWithIMeConnectionDisableTouchpadTap) {
-    mFakePolicy->setIsInputMethodConnectionActive(true);
-    testTouchpadTapStateForKeys({KEY_0, KEY_A}, /* expectPrevent= */ true);
-}
-
-/**
- * Touchpad tap should not be disabled by meta keys even if Input Method Connection is active
- */
-TEST_F(KeyboardInputMapperUnitTest, MetaKeystrokesWithIMeConnectionDontDisableTouchpadTap) {
-    mFakePolicy->setIsInputMethodConnectionActive(true);
-    std::vector<int32_t> metaKeys{KEY_LEFTALT,   KEY_RIGHTALT, KEY_LEFTSHIFT, KEY_RIGHTSHIFT,
-                                  KEY_FN,        KEY_LEFTCTRL, KEY_RIGHTCTRL, KEY_LEFTMETA,
-                                  KEY_RIGHTMETA, KEY_CAPSLOCK, KEY_NUMLOCK,   KEY_SCROLLLOCK};
-    testTouchpadTapStateForKeys(metaKeys, /* expectPrevent= */ false);
-}
-
 TEST_F(KeyboardInputMapperUnitTest, KeyPressTimestampRecorded) {
     nsecs_t when = ARBITRARY_TIME;
     std::vector<int32_t> keyCodes{KEY_0, KEY_A, KEY_LEFTCTRL, KEY_RIGHTALT, KEY_LEFTSHIFT};
diff --git a/services/inputflinger/tests/MultiTouchInputMapper_test.cpp b/services/inputflinger/tests/MultiTouchInputMapper_test.cpp
index c57c251..9a6b266 100644
--- a/services/inputflinger/tests/MultiTouchInputMapper_test.cpp
+++ b/services/inputflinger/tests/MultiTouchInputMapper_test.cpp
@@ -99,11 +99,8 @@
         setupAxis(ABS_MT_TOOL_TYPE, /*valid=*/false, /*min=*/0, /*max=*/0, /*resolution=*/0);
 
         // reset current slot at the beginning
-        EXPECT_CALL(mMockEventHub, getAbsoluteAxisValue(EVENTHUB_ID, ABS_MT_SLOT, _))
-                .WillRepeatedly([](int32_t, int32_t, int32_t* outValue) {
-                    *outValue = 0;
-                    return OK;
-                });
+        EXPECT_CALL(mMockEventHub, getAbsoluteAxisValue(EVENTHUB_ID, ABS_MT_SLOT))
+                .WillRepeatedly(Return(0));
 
         // mark all slots not in use
         mockSlotValues({});
@@ -210,11 +207,8 @@
     const auto pointerCoordsBeforeReset = std::get<NotifyMotionArgs>(args.back()).pointerCoords;
 
     // On buffer overflow mapper will be reset and MT slots data will be repopulated
-    EXPECT_CALL(mMockEventHub, getAbsoluteAxisValue(EVENTHUB_ID, ABS_MT_SLOT, _))
-            .WillRepeatedly([=](int32_t, int32_t, int32_t* outValue) {
-                *outValue = 1;
-                return OK;
-            });
+    EXPECT_CALL(mMockEventHub, getAbsoluteAxisValue(EVENTHUB_ID, ABS_MT_SLOT))
+            .WillRepeatedly(Return(1));
 
     mockSlotValues(
             {{1, {Point{x1, y1}, FIRST_TRACKING_ID}}, {2, {Point{x2, y2}, SECOND_TRACKING_ID}}});
diff --git a/services/inputflinger/tests/PointerChoreographer_test.cpp b/services/inputflinger/tests/PointerChoreographer_test.cpp
index 9a5b6a7..18222dd 100644
--- a/services/inputflinger/tests/PointerChoreographer_test.cpp
+++ b/services/inputflinger/tests/PointerChoreographer_test.cpp
@@ -196,7 +196,6 @@
 TEST_F(PointerChoreographerTest, ForwardsArgsToInnerListener) {
     const std::vector<NotifyArgs>
             allArgs{NotifyInputDevicesChangedArgs{},
-                    NotifyConfigurationChangedArgs{},
                     KeyArgsBuilder(AKEY_EVENT_ACTION_DOWN, AINPUT_SOURCE_KEYBOARD).build(),
                     MotionArgsBuilder(AMOTION_EVENT_ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
                             .pointer(FIRST_TOUCH_POINTER)
@@ -214,9 +213,6 @@
                                    [&](const NotifyInputDevicesChangedArgs& args) {
                                        mTestListener.assertNotifyInputDevicesChangedWasCalled();
                                    },
-                                   [&](const NotifyConfigurationChangedArgs& args) {
-                                       mTestListener.assertNotifyConfigurationChangedWasCalled();
-                                   },
                                    [&](const NotifyKeyArgs& args) {
                                        mTestListener.assertNotifyKeyWasCalled();
                                    },
@@ -830,15 +826,20 @@
     pc->assertSpotCount(DISPLAY_ID, 0);
 }
 
+/**
+ * In this test, we simulate the complete event of the stylus approaching and clicking on the
+ * screen, and then leaving the screen. We should ensure that spots are displayed correctly.
+ */
 TEST_F(PointerChoreographerTest, TouchSetsSpotsForStylusEvent) {
     mChoreographer.setShowTouchesEnabled(true);
+    mChoreographer.setStylusPointerIconEnabled(false);
     mChoreographer.notifyInputDevicesChanged(
             {/*id=*/0,
              {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS,
                                      DISPLAY_ID)}});
 
-    // Emit down event with stylus properties.
-    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_DOWN,
+    // First, the stylus begin to approach the screen.
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_HOVER_ENTER,
                                                   AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
                                         .pointer(STYLUS_POINTER)
                                         .deviceId(DEVICE_ID)
@@ -846,6 +847,72 @@
                                         .build());
     auto pc = assertPointerControllerCreated(ControllerType::TOUCH);
     pc->assertSpotCount(DISPLAY_ID, 1);
+
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_HOVER_MOVE,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 1);
+
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_HOVER_EXIT,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 0);
+
+    // Now, use stylus touch the screen.
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_DOWN,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 1);
+
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_MOVE,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 1);
+
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_UP,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 0);
+
+    // Then, the stylus start leave from the screen.
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_HOVER_ENTER,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 1);
+
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_HOVER_MOVE,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 1);
+
+    mChoreographer.notifyMotion(MotionArgsBuilder(AMOTION_EVENT_ACTION_HOVER_EXIT,
+                                                  AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_STYLUS)
+                                        .pointer(STYLUS_POINTER)
+                                        .deviceId(DEVICE_ID)
+                                        .displayId(DISPLAY_ID)
+                                        .build());
+    pc->assertSpotCount(DISPLAY_ID, 0);
 }
 
 TEST_F(PointerChoreographerTest, TouchSetsSpotsForTwoDisplays) {
@@ -2294,7 +2361,13 @@
     assertPointerControllerRemoved(pc);
 }
 
-class PointerVisibilityOnKeyPressTest : public PointerChoreographerTest {
+using PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixtureParam =
+        std::tuple<std::string_view /*name*/, uint32_t /*source*/>;
+
+class PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture
+      : public PointerChoreographerTest,
+        public testing::WithParamInterface<
+                PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixtureParam> {
 protected:
     const std::unordered_map<int32_t, int32_t>
             mMetaKeyStates{{AKEYCODE_ALT_LEFT, AMETA_ALT_LEFT_ON},
@@ -2358,15 +2431,28 @@
     }
 };
 
-TEST_F(PointerVisibilityOnKeyPressTest, KeystrokesWithoutImeConnectionDoesNotHidePointer) {
+INSTANTIATE_TEST_SUITE_P(
+        PointerChoreographerTest, PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+        testing::Values(std::make_tuple("Mouse", AINPUT_SOURCE_MOUSE),
+                        std::make_tuple("Touchpad", AINPUT_SOURCE_MOUSE | AINPUT_SOURCE_TOUCHPAD)),
+        [](const testing::TestParamInfo<
+                PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixtureParam>& p) {
+            return std::string{std::get<0>(p.param)};
+        });
+
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       KeystrokesWithoutImeConnectionDoesNotHidePointerOrDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
     ASSERT_TRUE(pc->isPointerShown());
 
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(0);
+
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_0);
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_A);
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_CTRL_LEFT);
@@ -2374,16 +2460,19 @@
     ASSERT_TRUE(pc->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, AlphanumericKeystrokesWithImeConnectionHidePointer) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       AlphanumericKeystrokesWithImeConnectionHidePointerAndDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
     ASSERT_TRUE(pc->isPointerShown());
 
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(2);
 
     notifyKey(DISPLAY_ID, AKEYCODE_0);
     ASSERT_FALSE(pc->isPointerShown());
@@ -2394,17 +2483,19 @@
     ASSERT_FALSE(pc->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, MetaKeystrokesDoNotHidePointer) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       MetaKeystrokesDoNotHidePointerOrDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0,
-             {generateTestDeviceInfo(SECOND_DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(SECOND_DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
     ASSERT_TRUE(pc->isPointerShown());
 
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(0);
 
     const std::vector<int32_t> metaKeyCodes{AKEYCODE_ALT_LEFT,   AKEYCODE_ALT_RIGHT,
                                             AKEYCODE_SHIFT_LEFT, AKEYCODE_SHIFT_RIGHT,
@@ -2420,14 +2511,16 @@
     ASSERT_TRUE(pc->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, KeystrokesWithoutTargetHidePointerOnlyOnFocusedDisplay) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture,
+       KeystrokesWithoutTargetHidePointerOnlyOnFocusedDisplayAndDisablesTouchpadTap) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID, ANOTHER_DISPLAY_ID}));
     mChoreographer.setFocusedDisplay(DISPLAY_ID);
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
             {/*id=*/0,
-             {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID),
+             {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID),
               generateTestDeviceInfo(SECOND_DEVICE_ID, AINPUT_SOURCE_MOUSE, ANOTHER_DISPLAY_ID)}});
     auto pc1 = assertPointerControllerCreated(ControllerType::MOUSE);
     auto pc2 = assertPointerControllerCreated(ControllerType::MOUSE);
@@ -2435,6 +2528,7 @@
     ASSERT_TRUE(pc2->isPointerShown());
 
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(2);
 
     notifyKey(ui::LogicalDisplayId::INVALID, AKEYCODE_0);
     ASSERT_FALSE(pc1->isPointerShown());
@@ -2446,16 +2540,19 @@
     ASSERT_TRUE(pc2->isPointerShown());
 }
 
-TEST_F(PointerVisibilityOnKeyPressTest, TestMetaKeyCombinations) {
+TEST_P(PointerVisibilityAndTouchpadTapStateOnKeyPressTestFixture, TestMetaKeyCombinations) {
+    const auto& [_, source] = GetParam();
     mChoreographer.setDisplayViewports(createViewports({DISPLAY_ID}));
 
     // Mouse connected
     mChoreographer.notifyInputDevicesChanged(
-            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, AINPUT_SOURCE_MOUSE, DISPLAY_ID)}});
+            {/*id=*/0, {generateTestDeviceInfo(DEVICE_ID, source, DISPLAY_ID)}});
     auto pc = assertPointerControllerCreated(ControllerType::MOUSE);
+
     EXPECT_CALL(mMockPolicy, isInputMethodConnectionActive).WillRepeatedly(testing::Return(true));
 
-    // meta key combinations that should hide pointer
+    // meta key combinations that should hide pointer and disable touchpad taps
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(5);
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_SHIFT_LEFT);
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_SHIFT_RIGHT);
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_CAPS_LOCK);
@@ -2463,6 +2560,7 @@
     metaKeyCombinationHidesPointer(*pc, AKEYCODE_A, AKEYCODE_SCROLL_LOCK);
 
     // meta key combinations that should not hide pointer
+    EXPECT_CALL(mMockPolicy, notifyMouseCursorFadedOnTyping).Times(0);
     metaKeyCombinationDoesNotHidePointer(*pc, AKEYCODE_A, AKEYCODE_ALT_LEFT);
     metaKeyCombinationDoesNotHidePointer(*pc, AKEYCODE_A, AKEYCODE_ALT_RIGHT);
     metaKeyCombinationDoesNotHidePointer(*pc, AKEYCODE_A, AKEYCODE_CTRL_LEFT);
diff --git a/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp b/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
new file mode 100644
index 0000000..6607bc7
--- /dev/null
+++ b/services/inputflinger/tests/RotaryEncoderInputMapper_test.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "RotaryEncoderInputMapper.h"
+
+#include <list>
+#include <string>
+#include <tuple>
+#include <variant>
+
+#include <android-base/logging.h>
+#include <android_companion_virtualdevice_flags.h>
+#include <gtest/gtest.h>
+#include <input/DisplayViewport.h>
+#include <linux/input-event-codes.h>
+#include <linux/input.h>
+#include <utils/Timers.h>
+
+#include "InputMapperTest.h"
+#include "InputReaderBase.h"
+#include "InterfaceMocks.h"
+#include "NotifyArgs.h"
+#include "TestEventMatchers.h"
+#include "ui/Rotation.h"
+
+#define TAG "RotaryEncoderInputMapper_test"
+
+namespace android {
+
+using testing::AllOf;
+using testing::Return;
+using testing::VariantWith;
+constexpr ui::LogicalDisplayId DISPLAY_ID = ui::LogicalDisplayId::DEFAULT;
+constexpr ui::LogicalDisplayId SECONDARY_DISPLAY_ID = ui::LogicalDisplayId{DISPLAY_ID.val() + 1};
+constexpr int32_t DISPLAY_WIDTH = 480;
+constexpr int32_t DISPLAY_HEIGHT = 800;
+
+namespace {
+
+DisplayViewport createViewport() {
+    DisplayViewport v;
+    v.orientation = ui::Rotation::Rotation0;
+    v.logicalRight = DISPLAY_HEIGHT;
+    v.logicalBottom = DISPLAY_WIDTH;
+    v.physicalRight = DISPLAY_HEIGHT;
+    v.physicalBottom = DISPLAY_WIDTH;
+    v.deviceWidth = DISPLAY_HEIGHT;
+    v.deviceHeight = DISPLAY_WIDTH;
+    v.isActive = true;
+    return v;
+}
+
+DisplayViewport createPrimaryViewport() {
+    DisplayViewport v = createViewport();
+    v.displayId = DISPLAY_ID;
+    v.uniqueId = "local:1";
+    return v;
+}
+
+DisplayViewport createSecondaryViewport() {
+    DisplayViewport v = createViewport();
+    v.displayId = SECONDARY_DISPLAY_ID;
+    v.uniqueId = "local:2";
+    v.type = ViewportType::EXTERNAL;
+    return v;
+}
+
+} // namespace
+
+namespace vd_flags = android::companion::virtualdevice::flags;
+
+/**
+ * Unit tests for RotaryEncoderInputMapper.
+ */
+class RotaryEncoderInputMapperTest : public InputMapperUnitTest {
+protected:
+    void SetUp() override { SetUpWithBus(BUS_USB); }
+    void SetUpWithBus(int bus) override {
+        InputMapperUnitTest::SetUpWithBus(bus);
+
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL))
+                .WillRepeatedly(Return(true));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL))
+                .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
+        EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_HWHEEL_HI_RES))
+                .WillRepeatedly(Return(false));
+    }
+};
+
+TEST_F(RotaryEncoderInputMapperTest, ConfigureDisplayIdWithAssociatedViewport) {
+    DisplayViewport primaryViewport = createPrimaryViewport();
+    DisplayViewport secondaryViewport = createSecondaryViewport();
+    mReaderConfiguration.setDisplayViewports({primaryViewport, secondaryViewport});
+
+    // Set up the secondary display as the associated viewport of the mapper.
+    EXPECT_CALL((*mDevice), getAssociatedViewport).WillRepeatedly(Return(secondaryViewport));
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    // Ensure input events are generated for the secondary display.
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                              WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithDisplayId(SECONDARY_DISPLAY_ID)))));
+}
+
+TEST_F(RotaryEncoderInputMapperTest, ConfigureDisplayIdNoAssociatedViewport) {
+    // Set up the default display.
+    mFakePolicy->clearViewports();
+    mFakePolicy->addDisplayViewport(createPrimaryViewport());
+
+    // Set up the mapper with no associated viewport.
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    // Ensure input events are generated without display ID
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithMotionAction(AMOTION_EVENT_ACTION_SCROLL),
+                              WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithDisplayId(ui::LogicalDisplayId::INVALID)))));
+}
+
+TEST_F(RotaryEncoderInputMapperTest, ProcessRegularScroll) {
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithMotionAction(AMOTION_EVENT_ACTION_SCROLL), WithScroll(1.0f)))));
+}
+
+TEST_F(RotaryEncoderInputMapperTest, ProcessHighResScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithMotionAction(AMOTION_EVENT_ACTION_SCROLL), WithScroll(0.5f)))));
+}
+
+TEST_F(RotaryEncoderInputMapperTest, HighResScrollIgnoresRegularScroll) {
+    vd_flags::high_resolution_scroll(true);
+    EXPECT_CALL(mMockEventHub, hasRelativeAxis(EVENTHUB_ID, REL_WHEEL_HI_RES))
+            .WillRepeatedly(Return(true));
+    mMapper = createInputMapper<RotaryEncoderInputMapper>(*mDeviceContext, mReaderConfiguration);
+
+    std::list<NotifyArgs> args;
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL_HI_RES, 60);
+    args += process(ARBITRARY_TIME, EV_REL, REL_WHEEL, 1);
+    args += process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithSource(AINPUT_SOURCE_ROTARY_ENCODER),
+                              WithMotionAction(AMOTION_EVENT_ACTION_SCROLL), WithScroll(0.5f)))));
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/inputflinger/tests/SwitchInputMapper_test.cpp b/services/inputflinger/tests/SwitchInputMapper_test.cpp
new file mode 100644
index 0000000..ebbf10b
--- /dev/null
+++ b/services/inputflinger/tests/SwitchInputMapper_test.cpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SwitchInputMapper.h"
+
+#include <list>
+#include <variant>
+
+#include <NotifyArgs.h>
+#include <gtest/gtest.h>
+#include <input/Input.h>
+#include <linux/input-event-codes.h>
+
+#include "InputMapperTest.h"
+#include "TestConstants.h"
+
+namespace android {
+
+class SwitchInputMapperTest : public InputMapperUnitTest {
+protected:
+    void SetUp() override {
+        InputMapperUnitTest::SetUp();
+        mMapper = createInputMapper<SwitchInputMapper>(*mDeviceContext,
+                                                       mFakePolicy->getReaderConfiguration());
+    }
+};
+
+TEST_F(SwitchInputMapperTest, GetSources) {
+    ASSERT_EQ(uint32_t(AINPUT_SOURCE_SWITCH), mMapper->getSources());
+}
+
+TEST_F(SwitchInputMapperTest, GetSwitchState) {
+    setSwitchState(1, {SW_LID});
+    ASSERT_EQ(1, mMapper->getSwitchState(AINPUT_SOURCE_ANY, SW_LID));
+
+    setSwitchState(0, {SW_LID});
+    ASSERT_EQ(0, mMapper->getSwitchState(AINPUT_SOURCE_ANY, SW_LID));
+}
+
+TEST_F(SwitchInputMapperTest, Process) {
+    std::list<NotifyArgs> out;
+    out = process(ARBITRARY_TIME, EV_SW, SW_LID, 1);
+    ASSERT_TRUE(out.empty());
+    out = process(ARBITRARY_TIME, EV_SW, SW_JACK_PHYSICAL_INSERT, 1);
+    ASSERT_TRUE(out.empty());
+    out = process(ARBITRARY_TIME, EV_SW, SW_HEADPHONE_INSERT, 0);
+    ASSERT_TRUE(out.empty());
+    out = process(ARBITRARY_TIME, EV_SYN, SYN_REPORT, 0);
+
+    ASSERT_EQ(1u, out.size());
+    const NotifySwitchArgs& args = std::get<NotifySwitchArgs>(*out.begin());
+    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
+    ASSERT_EQ((1U << SW_LID) | (1U << SW_JACK_PHYSICAL_INSERT), args.switchValues);
+    ASSERT_EQ((1U << SW_LID) | (1U << SW_JACK_PHYSICAL_INSERT) | (1 << SW_HEADPHONE_INSERT),
+              args.switchMask);
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/inputflinger/tests/TestConstants.h b/services/inputflinger/tests/TestConstants.h
index ad48b0f..082bbb8 100644
--- a/services/inputflinger/tests/TestConstants.h
+++ b/services/inputflinger/tests/TestConstants.h
@@ -24,6 +24,9 @@
 
 using std::chrono_literals::operator""ms;
 
+// Timeout for waiting for an input device to be added and processed
+static constexpr std::chrono::duration ADD_INPUT_DEVICE_TIMEOUT = 500ms;
+
 // Timeout for waiting for an expected event
 static constexpr std::chrono::duration WAIT_TIMEOUT = 100ms;
 
diff --git a/services/inputflinger/tests/TestEventMatchers.h b/services/inputflinger/tests/TestEventMatchers.h
index a6d9d5b..cfedc6e 100644
--- a/services/inputflinger/tests/TestEventMatchers.h
+++ b/services/inputflinger/tests/TestEventMatchers.h
@@ -720,6 +720,21 @@
     return argDistance == distance;
 }
 
+MATCHER_P(WithScroll, scroll, "InputEvent with specified scroll value") {
+    const auto argScroll = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_SCROLL);
+    *result_listener << "expected scroll value " << scroll << ", but got " << argScroll;
+    return argScroll == scroll;
+}
+
+MATCHER_P2(WithScroll, scrollX, scrollY, "InputEvent with specified scroll values") {
+    const auto argScrollX = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_HSCROLL);
+    const auto argScrollY = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_VSCROLL);
+    *result_listener << "expected scroll values " << scrollX << " scroll x " << scrollY
+                     << " scroll y, but got " << argScrollX << " scroll x " << argScrollY
+                     << " scroll y";
+    return argScrollX == scrollX && argScrollY == scrollY;
+}
+
 MATCHER_P2(WithTouchDimensions, maj, min, "InputEvent with specified touch dimensions") {
     const auto argMajor = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR);
     const auto argMinor = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR);
diff --git a/services/inputflinger/tests/TestInputListener.cpp b/services/inputflinger/tests/TestInputListener.cpp
index 41e250f..369f9cc 100644
--- a/services/inputflinger/tests/TestInputListener.cpp
+++ b/services/inputflinger/tests/TestInputListener.cpp
@@ -37,19 +37,6 @@
                                                         "to have been called."));
 }
 
-void TestInputListener::assertNotifyConfigurationChangedWasCalled(
-        NotifyConfigurationChangedArgs* outEventArgs) {
-    ASSERT_NO_FATAL_FAILURE(
-            assertCalled<NotifyConfigurationChangedArgs>(outEventArgs,
-                                                         "Expected notifyConfigurationChanged() "
-                                                         "to have been called."));
-}
-
-void TestInputListener::assertNotifyConfigurationChangedWasNotCalled() {
-    ASSERT_NO_FATAL_FAILURE(assertNotCalled<NotifyConfigurationChangedArgs>(
-            "notifyConfigurationChanged() should not be called."));
-}
-
 void TestInputListener::assertNotifyDeviceResetWasCalled(NotifyDeviceResetArgs* outEventArgs) {
     ASSERT_NO_FATAL_FAILURE(
             assertCalled<
@@ -192,10 +179,6 @@
     addToQueue<NotifyInputDevicesChangedArgs>(args);
 }
 
-void TestInputListener::notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) {
-    addToQueue<NotifyConfigurationChangedArgs>(args);
-}
-
 void TestInputListener::notifyDeviceReset(const NotifyDeviceResetArgs& args) {
     addToQueue<NotifyDeviceResetArgs>(args);
 }
diff --git a/services/inputflinger/tests/TestInputListener.h b/services/inputflinger/tests/TestInputListener.h
index 3c5e014..47eae4d 100644
--- a/services/inputflinger/tests/TestInputListener.h
+++ b/services/inputflinger/tests/TestInputListener.h
@@ -38,11 +38,6 @@
     void assertNotifyInputDevicesChangedWasCalled(
             NotifyInputDevicesChangedArgs* outEventArgs = nullptr);
 
-    void assertNotifyConfigurationChangedWasCalled(
-            NotifyConfigurationChangedArgs* outEventArgs = nullptr);
-
-    void assertNotifyConfigurationChangedWasNotCalled();
-
     void clearNotifyDeviceResetCalls();
 
     void assertNotifyDeviceResetWasCalled(const ::testing::Matcher<NotifyDeviceResetArgs>& matcher);
@@ -85,8 +80,6 @@
 
     virtual void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override;
 
-    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override;
-
     virtual void notifyDeviceReset(const NotifyDeviceResetArgs& args) override;
 
     virtual void notifyKey(const NotifyKeyArgs& args) override;
@@ -107,7 +100,6 @@
     const std::chrono::milliseconds mEventDidNotHappenTimeout;
 
     std::tuple<std::vector<NotifyInputDevicesChangedArgs>,   //
-               std::vector<NotifyConfigurationChangedArgs>,  //
                std::vector<NotifyDeviceResetArgs>,           //
                std::vector<NotifyKeyArgs>,                   //
                std::vector<NotifyMotionArgs>,                //
diff --git a/services/inputflinger/tests/TouchpadInputMapper_test.cpp b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
index 12fa835..fc8a7da 100644
--- a/services/inputflinger/tests/TouchpadInputMapper_test.cpp
+++ b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
@@ -103,11 +103,8 @@
         setupAxis(ABS_MT_DISTANCE, /*valid=*/false, /*min=*/0, /*max=*/0, /*resolution=*/0);
         setupAxis(ABS_MT_TOOL_TYPE, /*valid=*/false, /*min=*/0, /*max=*/0, /*resolution=*/0);
 
-        EXPECT_CALL(mMockEventHub, getAbsoluteAxisValue(EVENTHUB_ID, ABS_MT_SLOT, testing::_))
-                .WillRepeatedly([](int32_t eventHubId, int32_t, int32_t* outValue) {
-                    *outValue = 0;
-                    return OK;
-                });
+        EXPECT_CALL(mMockEventHub, getAbsoluteAxisValue(EVENTHUB_ID, ABS_MT_SLOT))
+                .WillRepeatedly(Return(0));
         EXPECT_CALL(mMockEventHub, getMtSlotValues(EVENTHUB_ID, testing::_, testing::_))
                 .WillRepeatedly([]() -> base::Result<std::vector<int32_t>> {
                     return base::ResultError("Axis not supported", NAME_NOT_FOUND);
diff --git a/services/inputflinger/tests/UnwantedInteractionBlocker_test.cpp b/services/inputflinger/tests/UnwantedInteractionBlocker_test.cpp
index 853f628..bbb2fc8 100644
--- a/services/inputflinger/tests/UnwantedInteractionBlocker_test.cpp
+++ b/services/inputflinger/tests/UnwantedInteractionBlocker_test.cpp
@@ -414,20 +414,6 @@
 };
 
 /**
- * Create a basic configuration change and send it to input processor.
- * Expect that the event is received by the next input stage, unmodified.
- */
-TEST_F(UnwantedInteractionBlockerTest, ConfigurationChangedIsPassedToNextListener) {
-    // Create a basic configuration change and send to blocker
-    NotifyConfigurationChangedArgs args(/*sequenceNum=*/1, /*eventTime=*/2);
-
-    mBlocker->notifyConfigurationChanged(args);
-    NotifyConfigurationChangedArgs outArgs;
-    ASSERT_NO_FATAL_FAILURE(mTestListener.assertNotifyConfigurationChangedWasCalled(&outArgs));
-    ASSERT_EQ(args, outArgs);
-}
-
-/**
  * Keys are not handled in 'UnwantedInteractionBlocker' and should be passed
  * to next stage unmodified.
  */
diff --git a/services/inputflinger/tests/VibratorInputMapper_test.cpp b/services/inputflinger/tests/VibratorInputMapper_test.cpp
new file mode 100644
index 0000000..6e3344c
--- /dev/null
+++ b/services/inputflinger/tests/VibratorInputMapper_test.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "VibratorInputMapper.h"
+
+#include <chrono>
+#include <list>
+#include <variant>
+#include <vector>
+
+#include <EventHub.h>
+#include <NotifyArgs.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <input/Input.h>
+
+#include "InputMapperTest.h"
+#include "VibrationElement.h"
+
+namespace android {
+
+class VibratorInputMapperTest : public InputMapperUnitTest {
+protected:
+    void SetUp() override {
+        InputMapperUnitTest::SetUp();
+        EXPECT_CALL(mMockEventHub, getDeviceClasses(EVENTHUB_ID))
+                .WillRepeatedly(testing::Return(InputDeviceClass::VIBRATOR));
+        EXPECT_CALL(mMockEventHub, getVibratorIds(EVENTHUB_ID))
+                .WillRepeatedly(testing::Return<std::vector<int32_t>>({0, 1}));
+        mMapper = createInputMapper<VibratorInputMapper>(*mDeviceContext,
+                                                         mFakePolicy->getReaderConfiguration());
+    }
+};
+
+TEST_F(VibratorInputMapperTest, GetSources) {
+    ASSERT_EQ(AINPUT_SOURCE_UNKNOWN, mMapper->getSources());
+}
+
+TEST_F(VibratorInputMapperTest, GetVibratorIds) {
+    ASSERT_EQ(mMapper->getVibratorIds().size(), 2U);
+}
+
+TEST_F(VibratorInputMapperTest, Vibrate) {
+    constexpr uint8_t DEFAULT_AMPLITUDE = 192;
+    constexpr int32_t VIBRATION_TOKEN = 100;
+
+    VibrationElement pattern(2);
+    VibrationSequence sequence(2);
+    pattern.duration = std::chrono::milliseconds(200);
+    pattern.channels = {{/*vibratorId=*/0, DEFAULT_AMPLITUDE / 2},
+                        {/*vibratorId=*/1, DEFAULT_AMPLITUDE}};
+    sequence.addElement(pattern);
+    pattern.duration = std::chrono::milliseconds(500);
+    pattern.channels = {{/*vibratorId=*/0, DEFAULT_AMPLITUDE / 4},
+                        {/*vibratorId=*/1, DEFAULT_AMPLITUDE}};
+    sequence.addElement(pattern);
+
+    std::vector<int64_t> timings = {0, 1};
+    std::vector<uint8_t> amplitudes = {DEFAULT_AMPLITUDE, DEFAULT_AMPLITUDE / 2};
+
+    ASSERT_FALSE(mMapper->isVibrating());
+    // Start vibrating
+    std::list<NotifyArgs> out = mMapper->vibrate(sequence, /*repeat=*/-1, VIBRATION_TOKEN);
+    ASSERT_TRUE(mMapper->isVibrating());
+    // Verify vibrator state listener was notified.
+    ASSERT_EQ(1u, out.size());
+    const NotifyVibratorStateArgs& vibrateArgs = std::get<NotifyVibratorStateArgs>(*out.begin());
+    ASSERT_EQ(DEVICE_ID, vibrateArgs.deviceId);
+    ASSERT_TRUE(vibrateArgs.isOn);
+    // Stop vibrating
+    out = mMapper->cancelVibrate(VIBRATION_TOKEN);
+    ASSERT_FALSE(mMapper->isVibrating());
+    // Verify vibrator state listener was notified.
+    ASSERT_EQ(1u, out.size());
+    const NotifyVibratorStateArgs& cancelArgs = std::get<NotifyVibratorStateArgs>(*out.begin());
+    ASSERT_EQ(DEVICE_ID, cancelArgs.deviceId);
+    ASSERT_FALSE(cancelArgs.isOn);
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/inputflinger/tests/fuzzers/InputClassifierFuzzer.cpp b/services/inputflinger/tests/fuzzers/InputClassifierFuzzer.cpp
index 0b4ac1f..46a6189 100644
--- a/services/inputflinger/tests/fuzzers/InputClassifierFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/InputClassifierFuzzer.cpp
@@ -39,12 +39,6 @@
     while (fdp.remaining_bytes() > 0) {
         fdp.PickValueInArray<std::function<void()>>({
                 [&]() -> void {
-                    // SendToNextStage_NotifyConfigurationChangedArgs
-                    mClassifier->notifyConfigurationChanged(
-                            {/*sequenceNum=*/fdp.ConsumeIntegral<int32_t>(),
-                             /*eventTime=*/fdp.ConsumeIntegral<nsecs_t>()});
-                },
-                [&]() -> void {
                     // SendToNextStage_NotifyKeyArgs
                     const nsecs_t eventTime =
                             fdp.ConsumeIntegralInRange<nsecs_t>(0,
diff --git a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
index 7d26a43..d552c19 100644
--- a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
@@ -169,6 +169,8 @@
 
     DeviceId getLastUsedInputDeviceId() override { return reader->getLastUsedInputDeviceId(); }
 
+    void notifyMouseCursorFadedOnTyping() override { reader->notifyMouseCursorFadedOnTyping(); }
+
 private:
     std::unique_ptr<InputReaderInterface> reader;
 };
diff --git a/services/inputflinger/tests/fuzzers/MapperHelpers.h b/services/inputflinger/tests/fuzzers/MapperHelpers.h
index ff425dd..fea0d9a 100644
--- a/services/inputflinger/tests/fuzzers/MapperHelpers.h
+++ b/services/inputflinger/tests/fuzzers/MapperHelpers.h
@@ -17,6 +17,7 @@
 
 #include <map>
 #include <memory>
+#include <optional>
 
 #include <EventHub.h>
 #include <InputDevice.h>
@@ -31,8 +32,7 @@
                                   EV_MSC,
                                   EV_REL,
                                   android::EventHubInterface::DEVICE_ADDED,
-                                  android::EventHubInterface::DEVICE_REMOVED,
-                                  android::EventHubInterface::FINISHED_DEVICE_SCAN};
+                                  android::EventHubInterface::DEVICE_REMOVED};
 
 constexpr size_t kValidCodes[] = {
         SYN_REPORT,
@@ -119,16 +119,25 @@
     void setAbsoluteAxisInfo(int32_t deviceId, int axis, const RawAbsoluteAxisInfo& axisInfo) {
         mAxes[deviceId][axis] = axisInfo;
     }
-    status_t getAbsoluteAxisInfo(int32_t deviceId, int axis,
-                                 RawAbsoluteAxisInfo* outAxisInfo) const override {
+    std::optional<RawAbsoluteAxisInfo> getAbsoluteAxisInfo(int32_t deviceId,
+                                                           int axis) const override {
         if (auto deviceAxesIt = mAxes.find(deviceId); deviceAxesIt != mAxes.end()) {
             const std::map<int, RawAbsoluteAxisInfo>& deviceAxes = deviceAxesIt->second;
             if (auto axisInfoIt = deviceAxes.find(axis); axisInfoIt != deviceAxes.end()) {
-                *outAxisInfo = axisInfoIt->second;
-                return OK;
+                return axisInfoIt->second;
             }
         }
-        return mFdp->ConsumeIntegral<status_t>();
+        if (mFdp->ConsumeBool()) {
+            return std::optional<RawAbsoluteAxisInfo>({
+                    .minValue = mFdp->ConsumeIntegral<int32_t>(),
+                    .maxValue = mFdp->ConsumeIntegral<int32_t>(),
+                    .flat = mFdp->ConsumeIntegral<int32_t>(),
+                    .fuzz = mFdp->ConsumeIntegral<int32_t>(),
+                    .resolution = mFdp->ConsumeIntegral<int32_t>(),
+            });
+        } else {
+            return std::nullopt;
+        }
     }
     bool hasRelativeAxis(int32_t deviceId, int axis) const override { return mFdp->ConsumeBool(); }
     bool hasInputProperty(int32_t deviceId, int property) const override {
@@ -197,9 +206,12 @@
     int32_t getKeyCodeForKeyLocation(int32_t deviceId, int32_t locationKeyCode) const override {
         return mFdp->ConsumeIntegral<int32_t>();
     }
-    status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis,
-                                  int32_t* outValue) const override {
-        return mFdp->ConsumeIntegral<status_t>();
+    std::optional<int32_t> getAbsoluteAxisValue(int32_t deviceId, int32_t axis) const override {
+        if (mFdp->ConsumeBool()) {
+            return mFdp->ConsumeIntegral<int32_t>();
+        } else {
+            return std::nullopt;
+        }
     }
     base::Result<std::vector<int32_t>> getMtSlotValues(int32_t deviceId, int32_t axis,
                                                        size_t slotCount) const override {
@@ -293,7 +305,6 @@
 class FuzzInputListener : public virtual InputListenerInterface {
 public:
     void notifyInputDevicesChanged(const NotifyInputDevicesChangedArgs& args) override {}
-    void notifyConfigurationChanged(const NotifyConfigurationChangedArgs& args) override {}
     void notifyKey(const NotifyKeyArgs& args) override {}
     void notifyMotion(const NotifyMotionArgs& args) override {}
     void notifySwitch(const NotifySwitchArgs& args) override {}
@@ -333,8 +344,8 @@
     int32_t getLedMetaState() override { return mFdp->ConsumeIntegral<int32_t>(); };
     void notifyStylusGestureStarted(int32_t, nsecs_t) {}
 
-    void setPreventingTouchpadTaps(bool prevent) {}
-    bool isPreventingTouchpadTaps() { return mFdp->ConsumeBool(); };
+    void setPreventingTouchpadTaps(bool prevent) override {}
+    bool isPreventingTouchpadTaps() override { return mFdp->ConsumeBool(); };
 
     void setLastKeyDownTimestamp(nsecs_t when) { mLastKeyDownTimestamp = when; };
     nsecs_t getLastKeyDownTimestamp() { return mLastKeyDownTimestamp; };
diff --git a/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp b/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp
index c620032..ebbb311 100644
--- a/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/TouchpadInputFuzzer.cpp
@@ -34,7 +34,6 @@
     if (fdp.ConsumeBool()) {
         eventHub.setAbsoluteAxisInfo(id, axis,
                                      RawAbsoluteAxisInfo{
-                                             .valid = fdp.ConsumeBool(),
                                              .minValue = fdp.ConsumeIntegral<int32_t>(),
                                              .maxValue = fdp.ConsumeIntegral<int32_t>(),
                                              .flat = fdp.ConsumeIntegral<int32_t>(),
diff --git a/services/sensorservice/SensorDirectConnection.cpp b/services/sensorservice/SensorDirectConnection.cpp
index 555b80a..33724a9 100644
--- a/services/sensorservice/SensorDirectConnection.cpp
+++ b/services/sensorservice/SensorDirectConnection.cpp
@@ -26,12 +26,17 @@
 
 using util::ProtoOutputStream;
 
-SensorService::SensorDirectConnection::SensorDirectConnection(const sp<SensorService>& service,
-        uid_t uid, const sensors_direct_mem_t *mem, int32_t halChannelHandle,
-        const String16& opPackageName, int deviceId)
-        : mService(service), mUid(uid), mMem(*mem),
+SensorService::SensorDirectConnection::SensorDirectConnection(
+        const sp<SensorService>& service, uid_t uid, pid_t pid, const sensors_direct_mem_t* mem,
+        int32_t halChannelHandle, const String16& opPackageName, int deviceId)
+      : mService(service),
+        mUid(uid),
+        mPid(pid),
+        mMem(*mem),
         mHalChannelHandle(halChannelHandle),
-        mOpPackageName(opPackageName), mDeviceId(deviceId), mDestroyed(false) {
+        mOpPackageName(opPackageName),
+        mDeviceId(deviceId),
+        mDestroyed(false) {
     mUserId = multiuser_get_user_id(mUid);
     ALOGD_IF(DEBUG_CONNECTIONS, "Created SensorDirectConnection");
 }
@@ -62,10 +67,21 @@
 
 void SensorService::SensorDirectConnection::dump(String8& result) const {
     Mutex::Autolock _l(mConnectionLock);
-    result.appendFormat("\tPackage %s, HAL channel handle %d, total sensor activated %zu\n",
-            String8(mOpPackageName).c_str(), getHalChannelHandle(), mActivated.size());
-    for (auto &i : mActivated) {
-        result.appendFormat("\t\tSensor %#08x, rate %d\n", i.first, i.second);
+    result.appendFormat("\t%s | HAL channel handle %d | uid %d | pid %d\n",
+                        String8(mOpPackageName).c_str(), getHalChannelHandle(), mUid, mPid);
+    result.appendFormat("\tActivated sensor count: %zu\n", mActivated.size());
+    dumpSensorInfoWithLock(result, mActivated);
+
+    result.appendFormat("\tBackup sensor (opened but UID idle) count: %zu\n",
+                        mActivatedBackup.size());
+    dumpSensorInfoWithLock(result, mActivatedBackup);
+}
+
+void SensorService::SensorDirectConnection::dumpSensorInfoWithLock(
+        String8& result, std::unordered_map<int, int> sensors) const {
+    for (auto& i : sensors) {
+        result.appendFormat("\t\t%s 0x%08x | rate %d\n", mService->getSensorName(i.first).c_str(),
+                            i.first, i.second);
     }
 }
 
diff --git a/services/sensorservice/SensorDirectConnection.h b/services/sensorservice/SensorDirectConnection.h
index bfaf811..9f21731 100644
--- a/services/sensorservice/SensorDirectConnection.h
+++ b/services/sensorservice/SensorDirectConnection.h
@@ -17,9 +17,10 @@
 #ifndef ANDROID_SENSOR_DIRECT_CONNECTION_H
 #define ANDROID_SENSOR_DIRECT_CONNECTION_H
 
-#include <optional>
+#include <android-base/thread_annotations.h>
 #include <stdint.h>
 #include <sys/types.h>
+#include <optional>
 
 #include <binder/BinderService.h>
 
@@ -37,15 +38,15 @@
 
 class SensorService::SensorDirectConnection: public BnSensorEventConnection {
 public:
-    SensorDirectConnection(const sp<SensorService>& service, uid_t uid,
-            const sensors_direct_mem_t *mem, int32_t halChannelHandle,
-            const String16& opPackageName, int deviceId);
+    SensorDirectConnection(const sp<SensorService>& service, uid_t uid, pid_t pid,
+                           const sensors_direct_mem_t* mem, int32_t halChannelHandle,
+                           const String16& opPackageName, int deviceId);
     void dump(String8& result) const;
     void dump(util::ProtoOutputStream* proto) const;
     uid_t getUid() const { return mUid; }
     const String16& getOpPackageName() const { return mOpPackageName; }
     int32_t getHalChannelHandle() const;
-    bool isEquivalent(const sensors_direct_mem_t *mem) const;
+    bool isEquivalent(const sensors_direct_mem_t* mem) const;
 
     // Invoked when access to sensors for this connection has changed, e.g. lost or
     // regained due to changes in the sensor restricted/privacy mode or the
@@ -94,8 +95,13 @@
     // Recover sensor requests previously capped by capRates().
     void uncapRates();
 
+    // Dumps a set of sensor infos.
+    void dumpSensorInfoWithLock(String8& result, std::unordered_map<int, int> sensors) const
+            EXCLUSIVE_LOCKS_REQUIRED(mConnectionLock);
+
     const sp<SensorService> mService;
     const uid_t mUid;
+    const pid_t mPid;
     const sensors_direct_mem_t mMem;
     const int32_t mHalChannelHandle;
     const String16 mOpPackageName;
diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index 3446f58..130c112 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp
@@ -90,15 +90,14 @@
         result.append("NORMAL\n");
     }
     result.appendFormat("\t %s | WakeLockRefCount %d | uid %d | cache size %d | "
-            "max cache size %d\n", mPackageName.c_str(), mWakeLockRefCount, mUid, mCacheSize,
-            mMaxCacheSize);
+                        "max cache size %d | has sensor access: %s\n",
+                        mPackageName.c_str(), mWakeLockRefCount, mUid, mCacheSize, mMaxCacheSize,
+                        hasSensorAccess() ? "true" : "false");
     for (auto& it : mSensorInfo) {
         const FlushInfo& flushInfo = it.second;
-        result.appendFormat("\t %s 0x%08x | status: %s | pending flush events %d \n",
-                            mService->getSensorName(it.first).c_str(),
-                            it.first,
-                            flushInfo.mFirstFlushPending ? "First flush pending" :
-                                                           "active",
+        result.appendFormat("\t %s 0x%08x | first flush pending: %s | pending flush events %d \n",
+                            mService->getSensorName(it.first).c_str(), it.first,
+                            flushInfo.mFirstFlushPending ? "true" : "false",
                             flushInfo.mPendingFlushEventsToSend);
     }
 #if DEBUG_CONNECTIONS
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 31b7f88..3895ffe 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -682,14 +682,14 @@
                     mSensorPrivacyPolicy->isSensorPrivacyEnabled() ? "enabled" : "disabled");
 
             const auto& activeConnections = connLock.getActiveConnections();
-            result.appendFormat("%zd active connections\n", activeConnections.size());
+            result.appendFormat("%zd open event connections\n", activeConnections.size());
             for (size_t i=0 ; i < activeConnections.size() ; i++) {
                 result.appendFormat("Connection Number: %zu \n", i);
                 activeConnections[i]->dump(result);
             }
 
             const auto& directConnections = connLock.getDirectConnections();
-            result.appendFormat("%zd direct connections\n", directConnections.size());
+            result.appendFormat("%zd open direct connections\n", directConnections.size());
             for (size_t i = 0 ; i < directConnections.size() ; i++) {
                 result.appendFormat("Direct connection %zu:\n", i);
                 directConnections[i]->dump(result);
@@ -1729,7 +1729,10 @@
         ALOGE("SensorDevice::registerDirectChannel returns %d", channelHandle);
     } else {
         mem.handle = clone;
-        conn = new SensorDirectConnection(this, uid, &mem, channelHandle, opPackageName, deviceId);
+        IPCThreadState* thread = IPCThreadState::self();
+        pid_t pid = (thread != nullptr) ? thread->getCallingPid() : -1;
+        conn = new SensorDirectConnection(this, uid, pid, &mem, channelHandle, opPackageName,
+                                          deviceId);
     }
 
     if (conn == nullptr) {
diff --git a/services/sensorservice/aidl/fuzzer/Android.bp b/services/sensorservice/aidl/fuzzer/Android.bp
index f6f104e..b2dc89b 100644
--- a/services/sensorservice/aidl/fuzzer/Android.bp
+++ b/services/sensorservice/aidl/fuzzer/Android.bp
@@ -26,6 +26,11 @@
         "libfakeservicemanager",
         "libcutils",
         "liblog",
+        "libsensor_flags_c_lib",
+    ],
+    shared_libs: [
+        "libaconfig_storage_read_api_cc",
+        "server_configurable_flags",
     ],
     srcs: [
         "fuzzer.cpp",
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 1b6c598..c2a9880 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -47,6 +47,7 @@
         "libtimestats_deps",
         "libsurfaceflinger_common_deps",
         "surfaceflinger_defaults",
+        "libsurfaceflinger_proto_deps",
     ],
     cflags: [
         "-DLOG_TAG=\"SurfaceFlinger\"",
@@ -85,7 +86,7 @@
         "libui",
         "libutils",
         "libSurfaceFlingerProp",
-        "libaconfig_storage_read_api_cc"
+        "libaconfig_storage_read_api_cc",
     ],
     static_libs: [
         "iinputflinger_aidl_lib_static",
@@ -93,7 +94,6 @@
         "libcompositionengine",
         "libframetimeline",
         "libgui_aidl_static",
-        "liblayers_proto",
         "libperfetto_client_experimental",
         "librenderengine",
         "libscheduler",
@@ -187,6 +187,7 @@
         "FrameTracker.cpp",
         "HdrLayerInfoReporter.cpp",
         "HdrSdrRatioOverlay.cpp",
+        "Jank/JankTracker.cpp",
         "WindowInfosListenerInvoker.cpp",
         "Layer.cpp",
         "LayerFE.cpp",
diff --git a/services/surfaceflinger/ClientCache.cpp b/services/surfaceflinger/ClientCache.cpp
index 09e41ff..40ea8d3 100644
--- a/services/surfaceflinger/ClientCache.cpp
+++ b/services/surfaceflinger/ClientCache.cpp
@@ -22,7 +22,7 @@
 #include <cinttypes>
 
 #include <android-base/stringprintf.h>
-#include <gui/TraceUtils.h>
+#include <common/trace.h>
 #include <renderengine/impl/ExternalTexture.h>
 
 #include "ClientCache.h"
diff --git a/services/surfaceflinger/CompositionEngine/Android.bp b/services/surfaceflinger/CompositionEngine/Android.bp
index ad5a760..b4ac9ba 100644
--- a/services/surfaceflinger/CompositionEngine/Android.bp
+++ b/services/surfaceflinger/CompositionEngine/Android.bp
@@ -17,6 +17,7 @@
         "librenderengine_deps",
         "libtimestats_deps",
         "surfaceflinger_defaults",
+        "libsurfaceflinger_proto_deps",
     ],
     cflags: [
         "-DLOG_TAG=\"CompositionEngine\"",
@@ -41,7 +42,6 @@
         "libutils",
     ],
     static_libs: [
-        "liblayers_proto",
         "libmath",
         "librenderengine",
         "libtimestats",
@@ -149,6 +149,7 @@
         "tests/CompositionEngineTest.cpp",
         "tests/DisplayColorProfileTest.cpp",
         "tests/DisplayTest.cpp",
+        "tests/HwcAsyncWorkerTest.cpp",
         "tests/HwcBufferCacheTest.cpp",
         "tests/MockHWC2.cpp",
         "tests/MockHWComposer.cpp",
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
index 11759b8..d1429a2 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
@@ -35,6 +35,7 @@
 #pragma clang diagnostic ignored "-Wextra"
 
 #include <gui/BufferQueue.h>
+#include <ui/EdgeExtensionEffect.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/GraphicTypes.h>
 #include <ui/StretchEffect.h>
@@ -133,12 +134,16 @@
     // The bounds of the layer in layer local coordinates
     FloatRect geomLayerBounds;
 
+    // The crop to apply to the layer in layer local coordinates
+    FloatRect geomLayerCrop;
+
     ShadowSettings shadowSettings;
 
     // List of regions that require blur
     std::vector<BlurRegion> blurRegions;
 
     StretchEffect stretchEffect;
+    EdgeExtensionEffect edgeExtensionEffect;
 
     /*
      * Geometry state
diff --git a/services/surfaceflinger/CompositionEngine/src/ClientCompositionRequestCache.cpp b/services/surfaceflinger/CompositionEngine/src/ClientCompositionRequestCache.cpp
index bdaa1d0..d9018bc 100644
--- a/services/surfaceflinger/CompositionEngine/src/ClientCompositionRequestCache.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/ClientCompositionRequestCache.cpp
@@ -37,7 +37,8 @@
             lhs.colorTransform == rhs.colorTransform &&
             lhs.disableBlending == rhs.disableBlending && lhs.shadow == rhs.shadow &&
             lhs.backgroundBlurRadius == rhs.backgroundBlurRadius &&
-            lhs.stretchEffect == rhs.stretchEffect;
+            lhs.stretchEffect == rhs.stretchEffect &&
+            lhs.edgeExtensionEffect == rhs.edgeExtensionEffect;
 }
 
 inline bool equalIgnoringBuffer(const renderengine::Buffer& lhs, const renderengine::Buffer& rhs) {
diff --git a/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp b/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp
index 4c77687..5c5d0cd 100644
--- a/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/CompositionEngine.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <common/trace.h>
 #include <compositionengine/CompositionRefreshArgs.h>
 #include <compositionengine/LayerFE.h>
 #include <compositionengine/LayerFECompositionState.h>
@@ -23,7 +24,6 @@
 #include <ui/DisplayMap.h>
 
 #include <renderengine/RenderEngine.h>
-#include <utils/Trace.h>
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic push
@@ -128,7 +128,7 @@
 } // namespace
 
 void CompositionEngine::present(CompositionRefreshArgs& args) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     preComposition(args);
@@ -155,7 +155,7 @@
     }
 
     {
-        ATRACE_NAME("Waiting on HWC");
+        SFTRACE_NAME("Waiting on HWC");
         for (auto& future : presentFutures) {
             // TODO(b/185536303): Call ftl::Future::wait() once it exists, since
             // we do not need the return value of get().
@@ -177,7 +177,7 @@
 }
 
 void CompositionEngine::preComposition(CompositionRefreshArgs& args) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     bool needsAnotherUpdate = false;
@@ -199,7 +199,7 @@
 // promises for buffer releases are fulfilled at the end of composition.
 void CompositionEngine::postComposition(CompositionRefreshArgs& args) {
     if (FlagManager::getInstance().ce_fence_promise()) {
-        ATRACE_CALL();
+        SFTRACE_CALL();
         ALOGV(__FUNCTION__);
 
         for (auto& layerFE : args.layers) {
diff --git a/services/surfaceflinger/CompositionEngine/src/Display.cpp b/services/surfaceflinger/CompositionEngine/src/Display.cpp
index c1617d7..77b1940 100644
--- a/services/surfaceflinger/CompositionEngine/src/Display.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Display.cpp
@@ -15,6 +15,7 @@
  */
 
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <compositionengine/CompositionEngine.h>
 #include <compositionengine/CompositionRefreshArgs.h>
 #include <compositionengine/DisplayCreationArgs.h>
@@ -25,9 +26,6 @@
 #include <compositionengine/impl/DumpHelpers.h>
 #include <compositionengine/impl/OutputLayer.h>
 #include <compositionengine/impl/RenderSurface.h>
-#include <gui/TraceUtils.h>
-
-#include <utils/Trace.h>
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic push
@@ -235,7 +233,7 @@
 
 bool Display::chooseCompositionStrategy(
         std::optional<android::HWComposer::DeviceRequestedChanges>* outChanges) {
-    ATRACE_FORMAT("%s for %s", __func__, getNamePlusId().c_str());
+    SFTRACE_FORMAT("%s for %s", __func__, getNamePlusId().c_str());
     ALOGV(__FUNCTION__);
 
     if (mIsDisconnected) {
diff --git a/services/surfaceflinger/CompositionEngine/src/HwcAsyncWorker.cpp b/services/surfaceflinger/CompositionEngine/src/HwcAsyncWorker.cpp
index 6086f0b..91385b4 100644
--- a/services/surfaceflinger/CompositionEngine/src/HwcAsyncWorker.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/HwcAsyncWorker.cpp
@@ -24,6 +24,7 @@
 
 #include <android-base/thread_annotations.h>
 #include <cutils/sched_policy.h>
+#include <ftl/fake_guard.h>
 
 namespace android::compositionengine::impl {
 
@@ -60,7 +61,7 @@
     std::unique_lock<std::mutex> lock(mMutex);
     android::base::ScopedLockAssertion assumeLock(mMutex);
     while (!mDone) {
-        mCv.wait(lock);
+        mCv.wait(lock, [this]() FTL_FAKE_GUARD(mMutex) { return mTaskRequested || mDone; });
         if (mTaskRequested && mTask.valid()) {
             mTask();
             mTaskRequested = false;
diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index b40aea4..2d8f98f 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp
@@ -17,6 +17,7 @@
 #include <SurfaceFlingerProperties.sysprop.h>
 #include <android-base/stringprintf.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <compositionengine/CompositionEngine.h>
 #include <compositionengine/CompositionRefreshArgs.h>
 #include <compositionengine/DisplayColorProfile.h>
@@ -31,7 +32,6 @@
 #include <compositionengine/impl/planner/Planner.h>
 #include <ftl/algorithm.h>
 #include <ftl/future.h>
-#include <gui/TraceUtils.h>
 #include <scheduler/FrameTargeter.h>
 #include <scheduler/Time.h>
 
@@ -53,7 +53,6 @@
 #include <android-base/properties.h>
 #include <ui/DebugUtils.h>
 #include <ui/HdrCapabilities.h>
-#include <utils/Trace.h>
 
 #include "TracedOrdinal.h"
 
@@ -424,7 +423,7 @@
 
 void Output::prepare(const compositionengine::CompositionRefreshArgs& refreshArgs,
                      LayerFESet& geomSnapshots) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     rebuildLayerStacks(refreshArgs, geomSnapshots);
@@ -453,8 +452,8 @@
                 })
                 .value();
     };
-    ATRACE_FORMAT("%s for %s%s", __func__, mNamePlusId.c_str(),
-                  stringifyExpectedPresentTime().c_str());
+    SFTRACE_FORMAT("%s for %s%s", __func__, mNamePlusId.c_str(),
+                   stringifyExpectedPresentTime().c_str());
     ALOGV(__FUNCTION__);
 
     updateColorProfile(refreshArgs);
@@ -518,7 +517,7 @@
     if (!outputState.isEnabled || CC_LIKELY(!refreshArgs.updatingOutputGeometryThisFrame)) {
         return;
     }
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     // Process the layers to determine visibility and coverage
@@ -804,7 +803,7 @@
 }
 
 void Output::updateCompositionState(const compositionengine::CompositionRefreshArgs& refreshArgs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     if (!getState().isEnabled) {
@@ -831,14 +830,14 @@
         return;
     }
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     mPlanner->plan(getOutputLayersOrderedByZ());
 }
 
 void Output::writeCompositionState(const compositionengine::CompositionRefreshArgs& refreshArgs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     if (!getState().isEnabled) {
@@ -1081,7 +1080,7 @@
 }
 
 void Output::prepareFrame() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     auto& outputState = editState();
@@ -1102,10 +1101,10 @@
 }
 
 ftl::Future<std::monostate> Output::presentFrameAndReleaseLayersAsync(bool flushEvenWhenDisabled) {
-    return ftl::Future<bool>(std::move(mHwComposerAsyncWorker->send([this, flushEvenWhenDisabled]() {
+    return ftl::Future<bool>(mHwComposerAsyncWorker->send([this, flushEvenWhenDisabled]() {
                presentFrameAndReleaseLayers(flushEvenWhenDisabled);
                return true;
-           })))
+           }))
             .then([](bool) { return std::monostate{}; });
 }
 
@@ -1116,7 +1115,7 @@
 }
 
 GpuCompositionResult Output::prepareFrameAsync() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
     auto& state = editState();
     const auto& previousChanges = state.previousDeviceRequestedChanges;
@@ -1146,7 +1145,7 @@
     state.strategyPrediction = predictionSucceeded ? CompositionStrategyPredictionState::SUCCESS
                                                    : CompositionStrategyPredictionState::FAIL;
     if (!predictionSucceeded) {
-        ATRACE_NAME("CompositionStrategyPredictionMiss");
+        SFTRACE_NAME("CompositionStrategyPredictionMiss");
         resetCompositionStrategy();
         if (chooseCompositionSuccess) {
             applyCompositionStrategy(changes);
@@ -1155,7 +1154,7 @@
         // Track the dequeued buffer to reuse so we don't need to dequeue another one.
         compositionResult.buffer = buffer;
     } else {
-        ATRACE_NAME("CompositionStrategyPredictionHit");
+        SFTRACE_NAME("CompositionStrategyPredictionHit");
     }
     state.previousDeviceRequestedChanges = std::move(changes);
     state.previousDeviceRequestedSuccess = chooseCompositionSuccess;
@@ -1187,7 +1186,7 @@
 }
 
 void Output::finishFrame(GpuCompositionResult&& result) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
     const auto& outputState = getState();
     if (!outputState.isEnabled) {
@@ -1276,7 +1275,7 @@
 std::optional<base::unique_fd> Output::composeSurfaces(
         const Region& debugRegion, std::shared_ptr<renderengine::ExternalTexture> tex,
         base::unique_fd& fd) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV(__FUNCTION__);
 
     const auto& outputState = getState();
@@ -1317,13 +1316,13 @@
         if (mClientCompositionRequestCache->exists(tex->getBuffer()->getId(),
                                                    clientCompositionDisplay,
                                                    clientCompositionLayers)) {
-            ATRACE_NAME("ClientCompositionCacheHit");
+            SFTRACE_NAME("ClientCompositionCacheHit");
             outputCompositionState.reusedClientComposition = true;
             setExpensiveRenderingExpected(false);
             // b/239944175 pass the fence associated with the buffer.
             return base::unique_fd(std::move(fd));
         }
-        ATRACE_NAME("ClientCompositionCacheMiss");
+        SFTRACE_NAME("ClientCompositionCacheMiss");
         mClientCompositionRequestCache->add(tex->getBuffer()->getId(), clientCompositionDisplay,
                                             clientCompositionLayers);
     }
@@ -1570,7 +1569,7 @@
 }
 
 void Output::presentFrameAndReleaseLayers(bool flushEvenWhenDisabled) {
-    ATRACE_FORMAT("%s for %s", __func__, mNamePlusId.c_str());
+    SFTRACE_FORMAT("%s for %s", __func__, mNamePlusId.c_str());
     ALOGV(__FUNCTION__);
 
     if (!getState().isEnabled) {
diff --git a/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp b/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp
index c0b23d9..d6028bf 100644
--- a/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/RenderSurface.cpp
@@ -18,6 +18,7 @@
 
 #include <android-base/stringprintf.h>
 #include <android/native_window.h>
+#include <common/trace.h>
 #include <compositionengine/CompositionEngine.h>
 #include <compositionengine/Display.h>
 #include <compositionengine/DisplaySurface.h>
@@ -32,7 +33,6 @@
 #include <system/window.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/Rect.h>
-#include <utils/Trace.h>
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic push
@@ -149,7 +149,7 @@
 
 std::shared_ptr<renderengine::ExternalTexture> RenderSurface::dequeueBuffer(
         base::unique_fd* bufferFence) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     int fd = -1;
     ANativeWindowBuffer* buffer = nullptr;
 
diff --git a/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp b/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp
index ea9442d..409a206 100644
--- a/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp
@@ -21,6 +21,7 @@
 
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <compositionengine/impl/OutputCompositionState.h>
 #include <compositionengine/impl/planner/CachedSet.h>
 #include <math/HashCombine.h>
@@ -28,7 +29,6 @@
 #include <renderengine/RenderEngine.h>
 #include <ui/DebugUtils.h>
 #include <ui/HdrRenderTypeUtils.h>
-#include <utils/Trace.h>
 
 namespace android::compositionengine::impl::planner {
 
@@ -160,7 +160,7 @@
 void CachedSet::render(renderengine::RenderEngine& renderEngine, TexturePool& texturePool,
                        const OutputCompositionState& outputState,
                        bool deviceHandlesColorTransform) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (outputState.powerCallback) {
         outputState.powerCallback->notifyCpuLoadUp();
     }
diff --git a/services/surfaceflinger/CompositionEngine/src/planner/Flattener.cpp b/services/surfaceflinger/CompositionEngine/src/planner/Flattener.cpp
index 4bafed2..783209c 100644
--- a/services/surfaceflinger/CompositionEngine/src/planner/Flattener.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/planner/Flattener.cpp
@@ -21,11 +21,10 @@
 
 #include <android-base/properties.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <compositionengine/impl/planner/Flattener.h>
 #include <compositionengine/impl/planner/LayerState.h>
 
-#include <gui/TraceUtils.h>
-
 using time_point = std::chrono::steady_clock::time_point;
 using namespace std::chrono_literals;
 
@@ -77,7 +76,7 @@
 
 NonBufferHash Flattener::flattenLayers(const std::vector<const LayerState*>& layers,
                                        NonBufferHash hash, time_point now) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const size_t unflattenedDisplayCost = calculateDisplayCost(layers);
     mUnflattenedDisplayCost += unflattenedDisplayCost;
 
@@ -113,7 +112,7 @@
         const OutputCompositionState& outputState,
         std::optional<std::chrono::steady_clock::time_point> renderDeadline,
         bool deviceHandlesColorTransform) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!mNewCachedSet) {
         return;
@@ -121,7 +120,7 @@
 
     // Ensure that a cached set has a valid buffer first
     if (mNewCachedSet->hasRenderedBuffer()) {
-        ATRACE_NAME("mNewCachedSet->hasRenderedBuffer()");
+        SFTRACE_NAME("mNewCachedSet->hasRenderedBuffer()");
         return;
     }
 
@@ -138,13 +137,13 @@
 
             if (mNewCachedSet->getSkipCount() <=
                 mTunables.mRenderScheduling->maxDeferRenderAttempts) {
-                ATRACE_FORMAT("DeadlinePassed: exceeded deadline by: %d us",
-                              std::chrono::duration_cast<std::chrono::microseconds>(
-                                      estimatedRenderFinish - *renderDeadline)
-                                      .count());
+                SFTRACE_FORMAT("DeadlinePassed: exceeded deadline by: %d us",
+                               std::chrono::duration_cast<std::chrono::microseconds>(
+                                       estimatedRenderFinish - *renderDeadline)
+                                       .count());
                 return;
             } else {
-                ATRACE_NAME("DeadlinePassed: exceeded max skips");
+                SFTRACE_NAME("DeadlinePassed: exceeded max skips");
             }
         }
     }
@@ -271,7 +270,7 @@
 // was already populated with these layers, i.e. on the second and following
 // calls with the same geometry.
 bool Flattener::mergeWithCachedSets(const std::vector<const LayerState*>& layers, time_point now) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::vector<CachedSet> merged;
 
     if (mLayers.empty()) {
@@ -415,7 +414,7 @@
 }
 
 std::vector<Flattener::Run> Flattener::findCandidateRuns(time_point now) const {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::vector<Run> runs;
     bool isPartOfRun = false;
     Run::Builder builder;
@@ -431,8 +430,8 @@
         if (!layerIsInactive && currentSet->getLayerCount() == kNumLayersFpsConsideration) {
             auto layerFps = currentSet->getFirstLayer().getState()->getFps();
             if (layerFps > 0 && layerFps <= kFpsActiveThreshold) {
-                ATRACE_FORMAT("layer is considered inactive due to low FPS [%s] %f",
-                              currentSet->getFirstLayer().getName().c_str(), layerFps);
+                SFTRACE_FORMAT("layer is considered inactive due to low FPS [%s] %f",
+                               currentSet->getFirstLayer().getName().c_str(), layerFps);
                 layerIsInactive = true;
             }
         }
@@ -494,7 +493,7 @@
 }
 
 void Flattener::buildCachedSets(time_point now) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (mLayers.empty()) {
         ALOGV("[%s] No layers found, returning", __func__);
         return;
@@ -508,7 +507,7 @@
     for (const CachedSet& layer : mLayers) {
         // TODO (b/191997217): make it less aggressive, and sync with findCandidateRuns
         if (layer.hasProtectedLayers()) {
-            ATRACE_NAME("layer->hasProtectedLayers()");
+            SFTRACE_NAME("layer->hasProtectedLayers()");
             return;
         }
     }
diff --git a/services/surfaceflinger/CompositionEngine/src/planner/Planner.cpp b/services/surfaceflinger/CompositionEngine/src/planner/Planner.cpp
index 5e6cade..d114ff7 100644
--- a/services/surfaceflinger/CompositionEngine/src/planner/Planner.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/planner/Planner.cpp
@@ -21,11 +21,11 @@
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
 #include <android-base/properties.h>
+#include <common/trace.h>
 #include <compositionengine/LayerFECompositionState.h>
 #include <compositionengine/impl/OutputLayerCompositionState.h>
 #include <compositionengine/impl/planner/Planner.h>
 
-#include <utils/Trace.h>
 #include <chrono>
 
 namespace android::compositionengine::impl::planner {
@@ -83,7 +83,7 @@
 
 void Planner::plan(
         compositionengine::Output::OutputLayersEnumerator<compositionengine::Output>&& layers) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::unordered_set<LayerId> removedLayers;
     removedLayers.reserve(mPreviousLayers.size());
 
@@ -165,7 +165,7 @@
 
 void Planner::reportFinalPlan(
         compositionengine::Output::OutputLayersEnumerator<compositionengine::Output>&& layers) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (!mPredictorEnabled) {
         return;
     }
@@ -204,7 +204,7 @@
 void Planner::renderCachedSets(const OutputCompositionState& outputState,
                                std::optional<std::chrono::steady_clock::time_point> renderDeadline,
                                bool deviceHandlesColorTransform) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     mFlattener.renderCachedSets(outputState, renderDeadline, deviceHandlesColorTransform);
 }
 
diff --git a/services/surfaceflinger/CompositionEngine/tests/HwcAsyncWorkerTest.cpp b/services/surfaceflinger/CompositionEngine/tests/HwcAsyncWorkerTest.cpp
new file mode 100644
index 0000000..dd04df6
--- /dev/null
+++ b/services/surfaceflinger/CompositionEngine/tests/HwcAsyncWorkerTest.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <future>
+
+#include <compositionengine/impl/HwcAsyncWorker.h>
+#include <gtest/gtest.h>
+
+namespace android::compositionengine {
+namespace {
+
+using namespace std::chrono_literals;
+
+// For the edge case tests below, how much real time should be spent trying to reproduce edge cases
+// problems in a loop.
+//
+// Larger values mean problems are more likely to be detected, at the cost of making the unit test
+// run slower.
+//
+// As we expect the tests to be run continuously, even a short loop will eventually catch
+// problems, though not necessarily from changes in the same build that introduce them.
+constexpr auto kWallTimeForEdgeCaseTests = 5ms;
+
+TEST(HwcAsyncWorker, continuousTasksEdgeCase) {
+    // Ensures that a single worker that is given multiple tasks in short succession will run them.
+
+    impl::HwcAsyncWorker worker;
+    const auto endTime = std::chrono::steady_clock::now() + kWallTimeForEdgeCaseTests;
+    while (std::chrono::steady_clock::now() < endTime) {
+        auto f1 = worker.send([] { return false; });
+        EXPECT_FALSE(f1.get());
+        auto f2 = worker.send([] { return true; });
+        EXPECT_TRUE(f2.get());
+    }
+}
+
+TEST(HwcAsyncWorker, constructAndDestroyEdgeCase) {
+    // Ensures that newly created HwcAsyncWorkers can be immediately destroyed.
+
+    const auto endTime = std::chrono::steady_clock::now() + kWallTimeForEdgeCaseTests;
+    while (std::chrono::steady_clock::now() < endTime) {
+        impl::HwcAsyncWorker worker;
+    }
+}
+
+TEST(HwcAsyncWorker, newlyCreatedRunsTasksEdgeCase) {
+    // Ensures that newly created HwcAsyncWorkers will run a task if given one immediately.
+
+    const auto endTime = std::chrono::steady_clock::now() + kWallTimeForEdgeCaseTests;
+    while (std::chrono::steady_clock::now() < endTime) {
+        impl::HwcAsyncWorker worker;
+        auto f = worker.send([] { return true; });
+        f.get();
+    }
+}
+
+} // namespace
+} // namespace android::compositionengine
diff --git a/services/surfaceflinger/Display/DisplayModeController.cpp b/services/surfaceflinger/Display/DisplayModeController.cpp
index a6a9bec..0e9218c 100644
--- a/services/surfaceflinger/Display/DisplayModeController.cpp
+++ b/services/surfaceflinger/Display/DisplayModeController.cpp
@@ -22,7 +22,9 @@
 #include "Display/DisplaySnapshot.h"
 #include "DisplayHardware/HWComposer.h"
 
+#include <android-base/properties.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <ftl/concat.h>
 #include <ftl/expected.h>
 #include <log/log.h>
@@ -83,7 +85,7 @@
             FTL_EXPECT(mDisplays.get(displayId).ok_or(DesiredModeAction::None)).get();
 
     {
-        ATRACE_NAME(displayPtr->concatId(__func__).c_str());
+        SFTRACE_NAME(displayPtr->concatId(__func__).c_str());
         ALOGD("%s %s", displayPtr->concatId(__func__).c_str(), to_string(desiredMode).c_str());
 
         std::scoped_lock lock(displayPtr->desiredModeLock);
@@ -204,7 +206,7 @@
         return false;
     }
 
-    ATRACE_INT(displayPtr->pendingModeFpsTrace.c_str(), mode.getVsyncRate().getIntValue());
+    SFTRACE_INT(displayPtr->pendingModeFpsTrace.c_str(), mode.getVsyncRate().getIntValue());
     return true;
 }
 
@@ -227,8 +229,8 @@
                                                 Fps vsyncRate, Fps renderFps) {
     const auto& displayPtr = FTL_TRY(mDisplays.get(displayId).ok_or(ftl::Unit())).get();
 
-    ATRACE_INT(displayPtr->activeModeFpsTrace.c_str(), vsyncRate.getIntValue());
-    ATRACE_INT(displayPtr->renderRateFpsTrace.c_str(), renderFps.getIntValue());
+    SFTRACE_INT(displayPtr->activeModeFpsTrace.c_str(), vsyncRate.getIntValue());
+    SFTRACE_INT(displayPtr->renderRateFpsTrace.c_str(), renderFps.getIntValue());
 
     displayPtr->selectorPtr->setActiveMode(modeId, renderFps);
 
@@ -237,4 +239,63 @@
     }
 }
 
+void DisplayModeController::updateKernelIdleTimer(PhysicalDisplayId displayId) {
+    std::lock_guard lock(mDisplayLock);
+    const auto& displayPtr = FTL_TRY(mDisplays.get(displayId).ok_or(ftl::Unit())).get();
+
+    const auto controllerOpt = displayPtr->selectorPtr->kernelIdleTimerController();
+    if (!controllerOpt) return;
+
+    using KernelIdleTimerAction = scheduler::RefreshRateSelector::KernelIdleTimerAction;
+
+    switch (displayPtr->selectorPtr->getIdleTimerAction()) {
+        case KernelIdleTimerAction::TurnOff:
+            if (displayPtr->isKernelIdleTimerEnabled) {
+                SFTRACE_INT("KernelIdleTimer", 0);
+                updateKernelIdleTimer(displayId, std::chrono::milliseconds::zero(), *controllerOpt);
+                displayPtr->isKernelIdleTimerEnabled = false;
+            }
+            break;
+        case KernelIdleTimerAction::TurnOn:
+            if (!displayPtr->isKernelIdleTimerEnabled) {
+                SFTRACE_INT("KernelIdleTimer", 1);
+                const auto timeout = displayPtr->selectorPtr->getIdleTimerTimeout();
+                updateKernelIdleTimer(displayId, timeout, *controllerOpt);
+                displayPtr->isKernelIdleTimerEnabled = true;
+            }
+            break;
+    }
+}
+
+void DisplayModeController::updateKernelIdleTimer(PhysicalDisplayId displayId,
+                                                  std::chrono::milliseconds timeout,
+                                                  KernelIdleTimerController controller) {
+    switch (controller) {
+        case KernelIdleTimerController::HwcApi:
+            mComposerPtr->setIdleTimerEnabled(displayId, timeout);
+            break;
+
+        case KernelIdleTimerController::Sysprop:
+            using namespace std::string_literals;
+            base::SetProperty("graphics.display.kernel_idle_timer.enabled"s,
+                              timeout > std::chrono::milliseconds::zero() ? "true"s : "false"s);
+            break;
+    }
+}
+
+auto DisplayModeController::getKernelIdleTimerState(PhysicalDisplayId displayId) const
+        -> KernelIdleTimerState {
+    std::lock_guard lock(mDisplayLock);
+    const auto& displayPtr =
+            FTL_EXPECT(mDisplays.get(displayId).ok_or(KernelIdleTimerState())).get();
+
+    const auto desiredModeIdOpt =
+            (std::scoped_lock(displayPtr->desiredModeLock), displayPtr->desiredModeOpt)
+                    .transform([](const display::DisplayModeRequest& request) {
+                        return request.mode.modePtr->getId();
+                    });
+
+    return {desiredModeIdOpt, displayPtr->isKernelIdleTimerEnabled};
+}
+
 } // namespace android::display
diff --git a/services/surfaceflinger/Display/DisplayModeController.h b/services/surfaceflinger/Display/DisplayModeController.h
index 258b04b..9ec603d 100644
--- a/services/surfaceflinger/Display/DisplayModeController.h
+++ b/services/surfaceflinger/Display/DisplayModeController.h
@@ -97,6 +97,17 @@
     void setActiveMode(PhysicalDisplayId, DisplayModeId, Fps vsyncRate, Fps renderFps)
             EXCLUDES(mDisplayLock);
 
+    void updateKernelIdleTimer(PhysicalDisplayId) REQUIRES(kMainThreadContext)
+            EXCLUDES(mDisplayLock);
+
+    struct KernelIdleTimerState {
+        std::optional<DisplayModeId> desiredModeIdOpt = std::nullopt;
+        bool isEnabled = false;
+    };
+
+    KernelIdleTimerState getKernelIdleTimerState(PhysicalDisplayId) const
+            REQUIRES(kMainThreadContext) EXCLUDES(mDisplayLock);
+
 private:
     struct Display {
         template <size_t N>
@@ -121,6 +132,8 @@
 
         DisplayModeRequestOpt pendingModeOpt GUARDED_BY(kMainThreadContext);
         bool isModeSetPending GUARDED_BY(kMainThreadContext) = false;
+
+        bool isKernelIdleTimerEnabled GUARDED_BY(kMainThreadContext) = false;
     };
 
     using DisplayPtr = std::unique_ptr<Display>;
@@ -128,6 +141,10 @@
     void setActiveModeLocked(PhysicalDisplayId, DisplayModeId, Fps vsyncRate, Fps renderFps)
             REQUIRES(mDisplayLock);
 
+    using KernelIdleTimerController = scheduler::RefreshRateSelector::KernelIdleTimerController;
+    void updateKernelIdleTimer(PhysicalDisplayId, std::chrono::milliseconds timeout,
+                               KernelIdleTimerController) REQUIRES(mDisplayLock);
+
     // Set once when initializing the DisplayModeController, which the HWComposer must outlive.
     HWComposer* mComposerPtr = nullptr;
 
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 05f4da2..402a3d2 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -24,6 +24,7 @@
 
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
+#include <common/trace.h>
 #include <compositionengine/CompositionEngine.h>
 #include <compositionengine/Display.h>
 #include <compositionengine/DisplayColorProfile.h>
@@ -200,19 +201,6 @@
     return mPowerMode != hal::PowerMode::OFF;
 }
 
-nsecs_t DisplayDevice::getVsyncPeriodFromHWC() const {
-    const auto physicalId = getPhysicalId();
-    if (!mHwComposer.isConnected(physicalId)) {
-        return 0;
-    }
-
-    if (const auto vsyncPeriodOpt = mHwComposer.getDisplayVsyncPeriod(physicalId).value_opt()) {
-        return *vsyncPeriodOpt;
-    }
-
-    return refreshRateSelector().getActiveMode().modePtr->getVsyncRate().getPeriodNsecs();
-}
-
 ui::Dataspace DisplayDevice::getCompositionDataSpace() const {
     return mCompositionDisplay->getState().dataspace;
 }
@@ -398,7 +386,7 @@
 }
 
 void DisplayDevice::updateHdrSdrRatioOverlayRatio(float currentHdrSdrRatio) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     mHdrSdrRatio = currentHdrSdrRatio;
     if (mHdrSdrRatioOverlay) {
         mHdrSdrRatioOverlay->changeHdrSdrRatio(currentHdrSdrRatio);
@@ -440,7 +428,7 @@
 }
 
 void DisplayDevice::updateRefreshRateOverlayRate(Fps refreshRate, Fps renderFps, bool setByHwc) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (mRefreshRateOverlay) {
         if (!mRefreshRateOverlay->isSetByHwc() || setByHwc) {
             if (mRefreshRateSelector->isVrrDevice() && !mRefreshRateOverlay->isSetByHwc()) {
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 1b8a3a8..3e3f558 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -203,8 +203,6 @@
     void updateHdrSdrRatioOverlayRatio(float currentHdrSdrRatio);
     bool isHdrSdrRatioOverlayEnabled() const { return mHdrSdrRatioOverlay != nullptr; }
 
-    nsecs_t getVsyncPeriodFromHWC() const;
-
     Fps getAdjustedRefreshRate() const { return mAdjustedRefreshRate; }
 
     // Round the requested refresh rate to match a divisor of the pacesetter
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index 362ab9c..d50a0bc 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -25,9 +25,8 @@
 #include <android/binder_ibinder_platform.h>
 #include <android/binder_manager.h>
 #include <common/FlagManager.h>
-#include <gui/TraceUtils.h>
+#include <common/trace.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 #include <aidl/android/hardware/graphics/composer3/BnComposerCallback.h>
 
@@ -677,7 +676,7 @@
 
 Error AidlComposer::presentDisplay(Display display, int* outPresentFence) {
     const auto displayId = translate<int64_t>(display);
-    ATRACE_FORMAT("HwcPresentDisplay %" PRId64, displayId);
+    SFTRACE_FORMAT("HwcPresentDisplay %" PRId64, displayId);
 
     Error error = Error::NONE;
     mMutex.lock_shared();
@@ -810,7 +809,7 @@
                                     int32_t frameIntervalNs, uint32_t* outNumTypes,
                                     uint32_t* outNumRequests) {
     const auto displayId = translate<int64_t>(display);
-    ATRACE_FORMAT("HwcValidateDisplay %" PRId64, displayId);
+    SFTRACE_FORMAT("HwcValidateDisplay %" PRId64, displayId);
 
     Error error = Error::NONE;
     mMutex.lock_shared();
@@ -840,7 +839,7 @@
                                              uint32_t* outNumRequests, int* outPresentFence,
                                              uint32_t* state) {
     const auto displayId = translate<int64_t>(display);
-    ATRACE_FORMAT("HwcPresentOrValidateDisplay %" PRId64, displayId);
+    SFTRACE_FORMAT("HwcPresentOrValidateDisplay %" PRId64, displayId);
 
     Error error = Error::NONE;
     mMutex.lock_shared();
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 3d285a8..73fa855 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -28,16 +28,15 @@
 #include "HWComposer.h"
 
 #include <android-base/properties.h>
+#include <common/trace.h>
 #include <compositionengine/Output.h>
 #include <compositionengine/OutputLayer.h>
 #include <compositionengine/impl/OutputLayerCompositionState.h>
 #include <ftl/concat.h>
-#include <gui/TraceUtils.h>
 #include <log/log.h>
 #include <ui/DebugUtils.h>
 #include <ui/GraphicBuffer.h>
 #include <utils/Errors.h>
-#include <utils/Trace.h>
 
 #include "../Layer.h" // needed only for debugging
 #include "../SurfaceFlingerProperties.h"
@@ -178,8 +177,8 @@
         displayData.lastPresentTimestamp = timestamp;
     }
 
-    ATRACE_INT(ftl::Concat("HW_VSYNC_", displayIdOpt->value).c_str(),
-               displayData.vsyncTraceToggle);
+    SFTRACE_INT(ftl::Concat("HW_VSYNC_", displayIdOpt->value).c_str(),
+                displayData.vsyncTraceToggle);
     displayData.vsyncTraceToggle = !displayData.vsyncTraceToggle;
 
     return displayIdOpt;
@@ -428,14 +427,14 @@
         return;
     }
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     auto error = displayData.hwcDisplay->setVsyncEnabled(enabled);
     RETURN_IF_HWC_ERROR(error, displayId);
 
     displayData.vsyncEnabled = enabled;
 
-    ATRACE_INT(ftl::Concat("HW_VSYNC_ON_", displayId.value).c_str(),
-               enabled == hal::Vsync::ENABLE ? 1 : 0);
+    SFTRACE_INT(ftl::Concat("HW_VSYNC_ON_", displayId.value).c_str(),
+                enabled == hal::Vsync::ENABLE ? 1 : 0);
 }
 
 status_t HWComposer::setClientTarget(HalDisplayId displayId, uint32_t slot,
@@ -455,7 +454,7 @@
         std::optional<std::chrono::steady_clock::time_point> earliestPresentTime,
         nsecs_t expectedPresentTime, Fps frameInterval,
         std::optional<android::HWComposer::DeviceRequestedChanges>* outChanges) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
 
@@ -493,7 +492,7 @@
     }();
 
     displayData.validateWasSkipped = false;
-    ATRACE_FORMAT("NextFrameInterval %d_Hz", frameInterval.getIntValue());
+    SFTRACE_FORMAT("NextFrameInterval %d_Hz", frameInterval.getIntValue());
     if (canSkipValidate) {
         sp<Fence> outPresentFence = Fence::NO_FENCE;
         uint32_t state = UINT32_MAX;
@@ -568,7 +567,7 @@
 status_t HWComposer::presentAndGetReleaseFences(
         HalDisplayId displayId,
         std::optional<std::chrono::steady_clock::time_point> earliestPresentTime) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
 
@@ -584,7 +583,7 @@
     }
 
     if (earliestPresentTime) {
-        ATRACE_NAME("wait for earliest present time");
+        SFTRACE_NAME("wait for earliest present time");
         std::this_thread::sleep_until(*earliestPresentTime);
     }
 
@@ -897,9 +896,9 @@
 status_t HWComposer::notifyExpectedPresent(PhysicalDisplayId displayId,
                                            TimePoint expectedPresentTime, Fps frameInterval) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
-    ATRACE_FORMAT("%s ExpectedPresentTime in %.2fms frameInterval %.2fms", __func__,
-                  ticks<std::milli, float>(expectedPresentTime - TimePoint::now()),
-                  ticks<std::milli, float>(Duration::fromNs(frameInterval.getPeriodNsecs())));
+    SFTRACE_FORMAT("%s ExpectedPresentTime in %.2fms frameInterval %.2fms", __func__,
+                   ticks<std::milli, float>(expectedPresentTime - TimePoint::now()),
+                   ticks<std::milli, float>(Duration::fromNs(frameInterval.getPeriodNsecs())));
     const auto error = mComposer->notifyExpectedPresent(mDisplayData[displayId].hwcDisplay->getId(),
                                                         expectedPresentTime.ns(),
                                                         frameInterval.getPeriodNsecs());
@@ -1149,7 +1148,7 @@
 
 status_t HWComposer::setIdleTimerEnabled(PhysicalDisplayId displayId,
                                          std::chrono::milliseconds timeout) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error = mDisplayData[displayId].hwcDisplay->setIdleTimerEnabled(timeout);
     if (error == hal::Error::UNSUPPORTED) {
@@ -1168,7 +1167,7 @@
 }
 
 Hwc2::AidlTransform HWComposer::getPhysicalDisplayOrientation(PhysicalDisplayId displayId) const {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     RETURN_IF_INVALID_DISPLAY(displayId, Hwc2::AidlTransform::NONE);
     Hwc2::AidlTransform outTransform;
     const auto& hwcDisplay = mDisplayData.at(displayId).hwcDisplay;
diff --git a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
index be95913..7c4aa75 100644
--- a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
@@ -27,11 +27,11 @@
 #include <SurfaceFlingerProperties.h>
 #include <aidl/android/hardware/graphics/common/DisplayHotplugEvent.h>
 #include <android/binder_manager.h>
+#include <common/trace.h>
 #include <composer-command-buffer/2.2/ComposerCommandBuffer.h>
 #include <hidl/HidlTransportSupport.h>
 #include <hidl/HidlTransportUtils.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 #include "HWC2.h"
 #include "Hal.h"
@@ -588,7 +588,7 @@
 }
 
 Error HidlComposer::presentDisplay(Display display, int* outPresentFence) {
-    ATRACE_NAME("HwcPresentDisplay");
+    SFTRACE_NAME("HwcPresentDisplay");
     mWriter.selectDisplay(display);
     mWriter.presentDisplay();
 
@@ -676,7 +676,7 @@
 Error HidlComposer::validateDisplay(Display display, nsecs_t /*expectedPresentTime*/,
                                     int32_t /*frameIntervalNs*/, uint32_t* outNumTypes,
                                     uint32_t* outNumRequests) {
-    ATRACE_NAME("HwcValidateDisplay");
+    SFTRACE_NAME("HwcValidateDisplay");
     mWriter.selectDisplay(display);
     mWriter.validateDisplay();
 
@@ -694,7 +694,7 @@
                                              int32_t /*frameIntervalNs*/, uint32_t* outNumTypes,
                                              uint32_t* outNumRequests, int* outPresentFence,
                                              uint32_t* state) {
-    ATRACE_NAME("HwcPresentOrValidateDisplay");
+    SFTRACE_NAME("HwcPresentOrValidateDisplay");
     mWriter.selectDisplay(display);
     mWriter.presentOrvalidateDisplay();
 
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp b/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
index 6c1a813..334c104 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.cpp
@@ -27,9 +27,9 @@
 #include <optional>
 
 #include <android-base/properties.h>
+#include <common/trace.h>
 #include <utils/Log.h>
 #include <utils/Mutex.h>
-#include <utils/Trace.h>
 
 #include <binder/IServiceManager.h>
 
@@ -74,9 +74,9 @@
 
 void traceExpensiveRendering(bool enabled) {
     if (enabled) {
-        ATRACE_ASYNC_BEGIN("ExpensiveRendering", 0);
+        SFTRACE_ASYNC_BEGIN("ExpensiveRendering", 0);
     } else {
-        ATRACE_ASYNC_END("ExpensiveRendering", 0);
+        SFTRACE_ASYNC_END("ExpensiveRendering", 0);
     }
 }
 
@@ -210,8 +210,8 @@
         ALOGV("Power hint session is not enabled, skip sending session hint");
         return;
     }
-    ATRACE_CALL();
-    if (sTraceHintSessionData) ATRACE_INT("Session hint", static_cast<int>(hint));
+    SFTRACE_CALL();
+    if (sTraceHintSessionData) SFTRACE_INT("Session hint", static_cast<int>(hint));
     {
         std::scoped_lock lock(mHintSessionMutex);
         if (!ensurePowerHintSessionRunning()) {
@@ -295,10 +295,10 @@
         ALOGV("Power hint session is not enabled, skipping target update");
         return;
     }
-    ATRACE_CALL();
+    SFTRACE_CALL();
     {
         mTargetDuration = targetDuration;
-        if (sTraceHintSessionData) ATRACE_INT64("Time target", targetDuration.ns());
+        if (sTraceHintSessionData) SFTRACE_INT64("Time target", targetDuration.ns());
         if (targetDuration == mLastTargetDurationSent) return;
         std::scoped_lock lock(mHintSessionMutex);
         if (!ensurePowerHintSessionRunning()) {
@@ -324,7 +324,7 @@
         ALOGV("Actual work duration power hint cannot be sent, skipping");
         return;
     }
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::optional<WorkDuration> actualDuration = estimateWorkDuration();
     if (!actualDuration.has_value() || actualDuration->durationNanos < 0) {
         ALOGV("Failed to send actual work duration, skipping");
@@ -332,16 +332,16 @@
     }
     actualDuration->durationNanos += sTargetSafetyMargin.ns();
     if (sTraceHintSessionData) {
-        ATRACE_INT64("Measured duration", actualDuration->durationNanos);
-        ATRACE_INT64("Target error term", actualDuration->durationNanos - mTargetDuration.ns());
-        ATRACE_INT64("Reported duration", actualDuration->durationNanos);
+        SFTRACE_INT64("Measured duration", actualDuration->durationNanos);
+        SFTRACE_INT64("Target error term", actualDuration->durationNanos - mTargetDuration.ns());
+        SFTRACE_INT64("Reported duration", actualDuration->durationNanos);
         if (supportsGpuReporting()) {
-            ATRACE_INT64("Reported cpu duration", actualDuration->cpuDurationNanos);
-            ATRACE_INT64("Reported gpu duration", actualDuration->gpuDurationNanos);
+            SFTRACE_INT64("Reported cpu duration", actualDuration->cpuDurationNanos);
+            SFTRACE_INT64("Reported gpu duration", actualDuration->gpuDurationNanos);
         }
-        ATRACE_INT64("Reported target", mLastTargetDurationSent.ns());
-        ATRACE_INT64("Reported target error term",
-                     actualDuration->durationNanos - mLastTargetDurationSent.ns());
+        SFTRACE_INT64("Reported target", mLastTargetDurationSent.ns());
+        SFTRACE_INT64("Reported target error term",
+                      actualDuration->durationNanos - mLastTargetDurationSent.ns());
     }
 
     ALOGV("Sending actual work duration of: %" PRId64 " with cpu: %" PRId64 " and gpu: %" PRId64
@@ -664,9 +664,9 @@
             .gpuDurationNanos = supportsGpuReporting() ? estimatedGpuDuration.ns() : 0,
     };
     if (sTraceHintSessionData) {
-        ATRACE_INT64("Idle duration", idleDuration.ns());
-        ATRACE_INT64("Total duration", totalDuration.ns());
-        ATRACE_INT64("Flinger duration", flingerDuration.ns());
+        SFTRACE_INT64("Idle duration", idleDuration.ns());
+        SFTRACE_INT64("Total duration", totalDuration.ns());
+        SFTRACE_INT64("Flinger duration", flingerDuration.ns());
     }
     return std::make_optional(duration);
 }
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
index bc4a41b..1076b2b 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
@@ -300,7 +300,7 @@
     bool mSessionConfigSupported = true;
     bool mFirstConfigSupportCheck = true;
 
-    // Whether we should emit ATRACE_INT data for hint sessions
+    // Whether we should emit SFTRACE_INT data for hint sessions
     static const bool sTraceHintSessionData;
 
     // Default target duration for the hint session
diff --git a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
index 2596a25..2a0ee5a 100644
--- a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
+++ b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
@@ -22,14 +22,16 @@
 
 #include <android-base/stringprintf.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <utils/Log.h>
-#include <utils/Trace.h>
 
 #include <chrono>
 #include <cinttypes>
 #include <numeric>
 #include <unordered_set>
 
+#include "../Jank/JankTracker.h"
+
 namespace android::frametimeline {
 
 using base::StringAppendF;
@@ -357,7 +359,11 @@
 
 void SurfaceFrame::setAcquireFenceTime(nsecs_t acquireFenceTime) {
     std::scoped_lock lock(mMutex);
-    mActuals.endTime = std::max(acquireFenceTime, mActualQueueTime);
+    if (CC_UNLIKELY(acquireFenceTime == Fence::SIGNAL_TIME_PENDING)) {
+        mActuals.endTime = mActualQueueTime;
+    } else {
+        mActuals.endTime = std::max(acquireFenceTime, mActualQueueTime);
+    }
 }
 
 void SurfaceFrame::setDropTime(nsecs_t dropTime) {
@@ -685,6 +691,13 @@
         mTimeStats->incrementJankyFrames({refreshRate, mRenderRate, mOwnerUid, mLayerName,
                                           mGameMode, mJankType, displayDeadlineDelta,
                                           displayPresentDelta, deadlineDelta});
+
+        gui::JankData jd;
+        jd.frameVsyncId = mToken;
+        jd.jankType = mJankType;
+        jd.frameIntervalNs =
+                (mRenderRate ? *mRenderRate : mDisplayFrameRenderRate).getPeriodNsecs();
+        JankTracker::onJankData(mLayerId, jd);
     }
 }
 
@@ -820,7 +833,7 @@
 namespace impl {
 
 int64_t TokenManager::generateTokenForPredictions(TimelineItem&& predictions) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::scoped_lock lock(mMutex);
     while (mPredictions.size() >= kMaxTokens) {
         mPredictions.erase(mPredictions.begin());
@@ -866,7 +879,7 @@
 std::shared_ptr<SurfaceFrame> FrameTimeline::createSurfaceFrameForToken(
         const FrameTimelineInfo& frameTimelineInfo, pid_t ownerPid, uid_t ownerUid, int32_t layerId,
         std::string layerName, std::string debugName, bool isBuffer, GameMode gameMode) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (frameTimelineInfo.vsyncId == FrameTimelineInfo::INVALID_VSYNC_ID) {
         return std::make_shared<SurfaceFrame>(frameTimelineInfo, ownerPid, ownerUid, layerId,
                                               std::move(layerName), std::move(debugName),
@@ -902,14 +915,14 @@
 }
 
 void FrameTimeline::addSurfaceFrame(std::shared_ptr<SurfaceFrame> surfaceFrame) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::scoped_lock lock(mMutex);
     mCurrentDisplayFrame->addSurfaceFrame(surfaceFrame);
 }
 
 void FrameTimeline::setSfWakeUp(int64_t token, nsecs_t wakeUpTime, Fps refreshRate,
                                 Fps renderRate) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::scoped_lock lock(mMutex);
     mCurrentDisplayFrame->onSfWakeUp(token, refreshRate, renderRate,
                                      mTokenManager.getPredictionsForToken(token), wakeUpTime);
@@ -918,7 +931,7 @@
 void FrameTimeline::setSfPresent(nsecs_t sfPresentTime,
                                  const std::shared_ptr<FenceTime>& presentFence,
                                  const std::shared_ptr<FenceTime>& gpuFence) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::scoped_lock lock(mMutex);
     mCurrentDisplayFrame->setActualEndTime(sfPresentTime);
     mCurrentDisplayFrame->setGpuFence(gpuFence);
@@ -928,7 +941,7 @@
 }
 
 void FrameTimeline::onCommitNotComposited() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::scoped_lock lock(mMutex);
     mCurrentDisplayFrame->onCommitNotComposited();
     mCurrentDisplayFrame.reset();
@@ -1507,7 +1520,7 @@
 }
 
 void FrameTimeline::parseArgs(const Vector<String16>& args, std::string& result) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::unordered_map<std::string, bool> argsMap;
     for (size_t i = 0; i < args.size(); i++) {
         argsMap[std::string(String8(args[i]).c_str())] = true;
diff --git a/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp b/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
index 39a6b77..f4335f3 100644
--- a/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
@@ -413,11 +413,11 @@
 
 void LayerHierarchyBuilder::update(LayerLifecycleManager& layerLifecycleManager) {
     if (!mInitialized) {
-        ATRACE_NAME("LayerHierarchyBuilder:init");
+        SFTRACE_NAME("LayerHierarchyBuilder:init");
         init(layerLifecycleManager.getLayers());
     } else if (layerLifecycleManager.getGlobalChanges().test(
                        RequestedLayerState::Changes::Hierarchy)) {
-        ATRACE_NAME("LayerHierarchyBuilder:update");
+        SFTRACE_NAME("LayerHierarchyBuilder:update");
         doUpdate(layerLifecycleManager.getLayers(), layerLifecycleManager.getDestroyedLayers());
     } else {
         return; // nothing to do
@@ -426,7 +426,7 @@
     uint32_t invalidRelativeRoot;
     bool hasRelZLoop = mRoot.hasRelZLoop(invalidRelativeRoot);
     while (hasRelZLoop) {
-        ATRACE_NAME("FixRelZLoop");
+        SFTRACE_NAME("FixRelZLoop");
         TransactionTraceWriter::getInstance().invoke("relz_loop_detected",
                                                      /*overwrite=*/false);
         layerLifecycleManager.fixRelativeZLoop(invalidRelativeRoot);
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
index 70e3c64..e5f6b7b 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
@@ -322,6 +322,10 @@
             << touchableRegion.bottom << "," << touchableRegion.right << "}"
             << "}";
     }
+
+    if (obj.edgeExtensionEffect.hasEffect()) {
+        out << obj.edgeExtensionEffect;
+    }
     return out;
 }
 
@@ -492,8 +496,10 @@
         requested.what &
                 (layer_state_t::eBufferChanged | layer_state_t::eDataspaceChanged |
                  layer_state_t::eApiChanged | layer_state_t::eShadowRadiusChanged |
-                 layer_state_t::eBlurRegionsChanged | layer_state_t::eStretchChanged)) {
-        forceClientComposition = shadowSettings.length > 0 || stretchEffect.hasEffect();
+                 layer_state_t::eBlurRegionsChanged | layer_state_t::eStretchChanged |
+                 layer_state_t::eEdgeExtensionChanged)) {
+        forceClientComposition = shadowSettings.length > 0 || stretchEffect.hasEffect() ||
+                edgeExtensionEffect.hasEffect();
     }
 
     if (forceUpdate ||
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index ca53a0d..c874db3 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
@@ -23,8 +23,8 @@
 #include <optional>
 
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <ftl/small_map.h>
-#include <gui/TraceUtils.h>
 #include <ui/DisplayMap.h>
 #include <ui/FloatRect.h>
 
@@ -317,6 +317,18 @@
     }
 }
 
+void updateMetadataAndGameMode(LayerSnapshot& snapshot, const RequestedLayerState& requested,
+                               const LayerSnapshotBuilder::Args& args,
+                               const LayerSnapshot& parentSnapshot) {
+    snapshot.gameMode = requested.metadata.has(gui::METADATA_GAME_MODE) ? requested.gameMode
+                                                                        : parentSnapshot.gameMode;
+    updateMetadata(snapshot, requested, args);
+    if (args.includeMetadata) {
+        snapshot.layerMetadata = parentSnapshot.layerMetadata;
+        snapshot.layerMetadata.merge(requested.metadata);
+    }
+}
+
 void clearChanges(LayerSnapshot& snapshot) {
     snapshot.changes.clear();
     snapshot.clientChanges = 0;
@@ -352,6 +364,7 @@
     snapshot.geomLayerBounds = getMaxDisplayBounds({});
     snapshot.roundedCorner = RoundedCornerState();
     snapshot.stretchEffect = {};
+    snapshot.edgeExtensionEffect = {};
     snapshot.outputFilter.layerStack = ui::DEFAULT_LAYER_STACK;
     snapshot.outputFilter.toInternalDisplay = false;
     snapshot.isSecure = false;
@@ -387,7 +400,7 @@
 
     // There are only content changes which do not require any child layer snapshots to be updated.
     ALOGV("%s", __func__);
-    ATRACE_NAME("FastPath");
+    SFTRACE_NAME("FastPath");
 
     uint32_t primaryDisplayRotationFlags = getPrimaryDisplayRotationFlags(args.displays);
     if (forceUpdate || args.displayChanges) {
@@ -421,7 +434,7 @@
 }
 
 void LayerSnapshotBuilder::updateSnapshots(const Args& args) {
-    ATRACE_NAME("UpdateSnapshots");
+    SFTRACE_NAME("UpdateSnapshots");
     LayerSnapshot rootSnapshot = args.rootSnapshot;
     if (args.parentCrop) {
         rootSnapshot.geomLayerBounds = *args.parentCrop;
@@ -548,6 +561,7 @@
         updateSnapshot(*snapshot, args, *layer, parentSnapshot, traversalPath);
     }
 
+    bool childHasValidFrameRate = false;
     for (auto& [childHierarchy, variant] : hierarchy.mChildren) {
         LayerHierarchy::ScopedAddToTraversalPath addChildToPath(traversalPath,
                                                                 childHierarchy->getLayer()->id,
@@ -555,7 +569,8 @@
         const LayerSnapshot& childSnapshot =
                 updateSnapshotsInHierarchy(args, *childHierarchy, traversalPath, *snapshot,
                                            depth + 1);
-        updateFrameRateFromChildSnapshot(*snapshot, childSnapshot, args);
+        updateFrameRateFromChildSnapshot(*snapshot, childSnapshot, *childHierarchy->getLayer(),
+                                         args, &childHasValidFrameRate);
     }
 
     return *snapshot;
@@ -662,9 +677,10 @@
     }
 }
 
-void LayerSnapshotBuilder::updateFrameRateFromChildSnapshot(LayerSnapshot& snapshot,
-                                                            const LayerSnapshot& childSnapshot,
-                                                            const Args& args) {
+void LayerSnapshotBuilder::updateFrameRateFromChildSnapshot(
+        LayerSnapshot& snapshot, const LayerSnapshot& childSnapshot,
+        const RequestedLayerState& /* requestedChildState */, const Args& args,
+        bool* outChildHasValidFrameRate) {
     if (args.forceUpdate == ForceUpdateFlags::NONE &&
         !args.layerLifecycleManager.getGlobalChanges().any(
                 RequestedLayerState::Changes::Hierarchy) &&
@@ -674,7 +690,7 @@
     }
 
     using FrameRateCompatibility = scheduler::FrameRateCompatibility;
-    if (snapshot.frameRate.isValid()) {
+    if (snapshot.inheritedFrameRate.isValid() || *outChildHasValidFrameRate) {
         // we already have a valid framerate.
         return;
     }
@@ -691,13 +707,18 @@
     const auto layerVotedWithExactCompatibility = childSnapshot.frameRate.vote.rate.isValid() &&
             childSnapshot.frameRate.vote.type == FrameRateCompatibility::Exact;
 
-    bool childHasValidFrameRate = layerVotedWithDefaultCompatibility || layerVotedWithNoVote ||
+    *outChildHasValidFrameRate |= layerVotedWithDefaultCompatibility || layerVotedWithNoVote ||
             layerVotedWithCategory || layerVotedWithExactCompatibility;
 
     // If we don't have a valid frame rate, but the children do, we set this
     // layer as NoVote to allow the children to control the refresh rate
-    if (childHasValidFrameRate) {
-        snapshot.frameRate = scheduler::LayerInfo::FrameRate(Fps(), FrameRateCompatibility::NoVote);
+    static const auto noVote =
+            scheduler::LayerInfo::FrameRate(Fps(), FrameRateCompatibility::NoVote);
+    if (*outChildHasValidFrameRate) {
+        snapshot.frameRate = noVote;
+        snapshot.changes |= RequestedLayerState::Changes::FrameRate;
+    } else if (snapshot.frameRate != snapshot.inheritedFrameRate) {
+        snapshot.frameRate = snapshot.inheritedFrameRate;
         snapshot.changes |= RequestedLayerState::Changes::FrameRate;
     }
 }
@@ -762,6 +783,12 @@
                                  RequestedLayerState::Changes::Input)) {
             updateInput(snapshot, requested, parentSnapshot, path, args);
         }
+        if (forceUpdate ||
+            (args.includeMetadata &&
+             snapshot.changes.any(RequestedLayerState::Changes::Metadata |
+                                  RequestedLayerState::Changes::Geometry))) {
+            updateMetadataAndGameMode(snapshot, requested, args, parentSnapshot);
+        }
         return;
     }
 
@@ -791,6 +818,32 @@
                 : parentSnapshot.stretchEffect;
     }
 
+    if (forceUpdate ||
+        (snapshot.clientChanges | parentSnapshot.clientChanges) &
+                layer_state_t::eEdgeExtensionChanged) {
+        if (requested.edgeExtensionParameters.extendLeft ||
+            requested.edgeExtensionParameters.extendRight ||
+            requested.edgeExtensionParameters.extendTop ||
+            requested.edgeExtensionParameters.extendBottom) {
+            // This is the root layer to which the extension is applied
+            snapshot.edgeExtensionEffect =
+                    EdgeExtensionEffect(requested.edgeExtensionParameters.extendLeft,
+                                        requested.edgeExtensionParameters.extendRight,
+                                        requested.edgeExtensionParameters.extendTop,
+                                        requested.edgeExtensionParameters.extendBottom);
+        } else if (parentSnapshot.clientChanges & layer_state_t::eEdgeExtensionChanged) {
+            // Extension is inherited
+            snapshot.edgeExtensionEffect = parentSnapshot.edgeExtensionEffect;
+        } else {
+            // There is no edge extension
+            snapshot.edgeExtensionEffect.reset();
+        }
+        if (snapshot.edgeExtensionEffect.hasEffect()) {
+            snapshot.clientChanges |= layer_state_t::eEdgeExtensionChanged;
+            snapshot.changes |= RequestedLayerState::Changes::Geometry;
+        }
+    }
+
     if (forceUpdate || snapshot.clientChanges & layer_state_t::eColorTransformChanged) {
         if (!parentSnapshot.colorTransformIsIdentity) {
             snapshot.colorTransform = parentSnapshot.colorTransform * requested.colorTransform;
@@ -801,15 +854,10 @@
         }
     }
 
-    if (forceUpdate || snapshot.changes.test(RequestedLayerState::Changes::GameMode)) {
-        snapshot.gameMode = requested.metadata.has(gui::METADATA_GAME_MODE)
-                ? requested.gameMode
-                : parentSnapshot.gameMode;
-        updateMetadata(snapshot, requested, args);
-        if (args.includeMetadata) {
-            snapshot.layerMetadata = parentSnapshot.layerMetadata;
-            snapshot.layerMetadata.merge(requested.metadata);
-        }
+    if (forceUpdate ||
+        snapshot.changes.any(RequestedLayerState::Changes::Metadata |
+                             RequestedLayerState::Changes::Hierarchy)) {
+        updateMetadataAndGameMode(snapshot, requested, args, parentSnapshot);
     }
 
     if (forceUpdate || snapshot.clientChanges & layer_state_t::eFixedTransformHintChanged ||
@@ -886,6 +934,10 @@
         updateLayerBounds(snapshot, requested, parentSnapshot, primaryDisplayRotationFlags);
     }
 
+    if (snapshot.edgeExtensionEffect.hasEffect()) {
+        updateBoundsForEdgeExtension(snapshot);
+    }
+
     if (forceUpdate || snapshot.clientChanges & layer_state_t::eCornerRadiusChanged ||
         snapshot.changes.any(RequestedLayerState::Changes::Geometry |
                              RequestedLayerState::Changes::BufferUsageFlags)) {
@@ -904,8 +956,8 @@
     }
 
     // computed snapshot properties
-    snapshot.forceClientComposition =
-            snapshot.shadowSettings.length > 0 || snapshot.stretchEffect.hasEffect();
+    snapshot.forceClientComposition = snapshot.shadowSettings.length > 0 ||
+            snapshot.stretchEffect.hasEffect() || snapshot.edgeExtensionEffect.hasEffect();
     snapshot.contentOpaque = snapshot.isContentOpaque();
     snapshot.isOpaque = snapshot.contentOpaque && !snapshot.roundedCorner.hasRoundedCorners() &&
             snapshot.color.a == 1.f;
@@ -960,6 +1012,31 @@
     }
 }
 
+/**
+ * According to the edges that we are requested to extend, we increase the bounds to the maximum
+ * extension allowed by the crop (parent crop + requested crop). The animation that called
+ * Transition#setEdgeExtensionEffect is in charge of setting the requested crop.
+ * @param snapshot
+ */
+void LayerSnapshotBuilder::updateBoundsForEdgeExtension(LayerSnapshot& snapshot) {
+    EdgeExtensionEffect& effect = snapshot.edgeExtensionEffect;
+
+    if (effect.extendsEdge(LEFT)) {
+        snapshot.geomLayerBounds.left = snapshot.geomLayerCrop.left;
+    }
+    if (effect.extendsEdge(RIGHT)) {
+        snapshot.geomLayerBounds.right = snapshot.geomLayerCrop.right;
+    }
+    if (effect.extendsEdge(TOP)) {
+        snapshot.geomLayerBounds.top = snapshot.geomLayerCrop.top;
+    }
+    if (effect.extendsEdge(BOTTOM)) {
+        snapshot.geomLayerBounds.bottom = snapshot.geomLayerCrop.bottom;
+    }
+
+    snapshot.transformedBounds = snapshot.geomLayerTransform.transform(snapshot.geomLayerBounds);
+}
+
 void LayerSnapshotBuilder::updateLayerBounds(LayerSnapshot& snapshot,
                                              const RequestedLayerState& requested,
                                              const LayerSnapshot& parentSnapshot,
@@ -999,11 +1076,12 @@
     FloatRect parentBounds = parentSnapshot.geomLayerBounds;
     parentBounds = snapshot.localTransform.inverse().transform(parentBounds);
     snapshot.geomLayerBounds =
-            (requested.externalTexture) ? snapshot.bufferSize.toFloatRect() : parentBounds;
+            requested.externalTexture ? snapshot.bufferSize.toFloatRect() : parentBounds;
+    snapshot.geomLayerCrop = parentBounds;
     if (!requested.crop.isEmpty()) {
-        snapshot.geomLayerBounds = snapshot.geomLayerBounds.intersect(requested.crop.toFloatRect());
+        snapshot.geomLayerCrop = snapshot.geomLayerCrop.intersect(requested.crop.toFloatRect());
     }
-    snapshot.geomLayerBounds = snapshot.geomLayerBounds.intersect(parentBounds);
+    snapshot.geomLayerBounds = snapshot.geomLayerBounds.intersect(snapshot.geomLayerCrop);
     snapshot.transformedBounds = snapshot.geomLayerTransform.transform(snapshot.geomLayerBounds);
     const Rect geomLayerBoundsWithoutTransparentRegion =
             RequestedLayerState::reduce(Rect(snapshot.geomLayerBounds),
@@ -1178,6 +1256,15 @@
     }
 }
 
+void LayerSnapshotBuilder::forEachSnapshot(const Visitor& visitor,
+                                           const ConstPredicate& predicate) {
+    for (int i = 0; i < mNumInterestingSnapshots; i++) {
+        std::unique_ptr<LayerSnapshot>& snapshot = mSnapshots.at((size_t)i);
+        if (!predicate(*snapshot)) continue;
+        visitor(snapshot);
+    }
+}
+
 void LayerSnapshotBuilder::forEachInputSnapshot(const ConstVisitor& visitor) const {
     for (int i = mNumInterestingSnapshots - 1; i >= 0; i--) {
         LayerSnapshot& snapshot = *mSnapshots[(size_t)i];
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
index 1cec018..207e23a 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
@@ -86,6 +86,11 @@
     // Visit each visible snapshot in z-order and move the snapshot if needed
     void forEachVisibleSnapshot(const Visitor& visitor);
 
+    typedef std::function<bool(const LayerSnapshot& snapshot)> ConstPredicate;
+    // Visit each snapshot that satisfies the predicate and move the snapshot if needed with visible
+    // snapshots in z-order
+    void forEachSnapshot(const Visitor& visitor, const ConstPredicate& predicate);
+
     // Visit each snapshot interesting to input reverse z-order
     void forEachInputSnapshot(const ConstVisitor& visitor) const;
 
@@ -108,6 +113,10 @@
     static void resetRelativeState(LayerSnapshot& snapshot);
     static void updateRoundedCorner(LayerSnapshot& snapshot, const RequestedLayerState& layerState,
                                     const LayerSnapshot& parentSnapshot, const Args& args);
+    static bool extensionEdgeSharedWithParent(LayerSnapshot& snapshot,
+                                              const RequestedLayerState& requested,
+                                              const LayerSnapshot& parentSnapshot);
+    static void updateBoundsForEdgeExtension(LayerSnapshot& snapshot);
     void updateLayerBounds(LayerSnapshot& snapshot, const RequestedLayerState& layerState,
                            const LayerSnapshot& parentSnapshot, uint32_t displayRotationFlags);
     static void updateShadows(LayerSnapshot& snapshot, const RequestedLayerState& requested,
@@ -121,7 +130,9 @@
                                   const RequestedLayerState& layer,
                                   const LayerSnapshot& parentSnapshot);
     void updateFrameRateFromChildSnapshot(LayerSnapshot& snapshot,
-                                          const LayerSnapshot& childSnapshot, const Args& args);
+                                          const LayerSnapshot& childSnapshot,
+                                          const RequestedLayerState& requestedCHildState,
+                                          const Args& args, bool* outChildHasValidFrameRate);
     void updateTouchableRegionCrop(const Args& args);
 
     std::unordered_map<LayerHierarchy::TraversalPath, LayerSnapshot*,
diff --git a/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp b/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
index 3e8d740..17d2610 100644
--- a/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
+++ b/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
@@ -19,7 +19,7 @@
 #undef LOG_TAG
 #define LOG_TAG "SurfaceFlinger"
 
-#include <gui/TraceUtils.h>
+#include <common/trace.h>
 #include <log/log.h>
 #include <private/android_filesystem_config.h>
 #include <sys/types.h>
@@ -328,6 +328,7 @@
                 changes |= RequestedLayerState::Changes::GameMode;
             }
         }
+        changes |= RequestedLayerState::Changes::Metadata;
     }
     if (clientState.what & layer_state_t::eFrameRateChanged) {
         const auto compatibility =
@@ -580,8 +581,8 @@
 bool RequestedLayerState::isSimpleBufferUpdate(const layer_state_t& s) const {
     static constexpr uint64_t requiredFlags = layer_state_t::eBufferChanged;
     if ((s.what & requiredFlags) != requiredFlags) {
-        ATRACE_FORMAT_INSTANT("%s: false [missing required flags 0x%" PRIx64 "]", __func__,
-                              (s.what | requiredFlags) & ~s.what);
+        SFTRACE_FORMAT_INSTANT("%s: false [missing required flags 0x%" PRIx64 "]", __func__,
+                               (s.what | requiredFlags) & ~s.what);
         return false;
     }
 
@@ -593,8 +594,8 @@
                      ? 0
                      : (layer_state_t::eAutoRefreshChanged | layer_state_t::eFlagsChanged));
     if (s.what & deniedFlags) {
-        ATRACE_FORMAT_INSTANT("%s: false [has denied flags 0x%" PRIx64 "]", __func__,
-                              s.what & deniedFlags);
+        SFTRACE_FORMAT_INSTANT("%s: false [has denied flags 0x%" PRIx64 "]", __func__,
+                               s.what & deniedFlags);
         return false;
     }
 
@@ -608,15 +609,16 @@
             layer_state_t::eSidebandStreamChanged | layer_state_t::eColorSpaceAgnosticChanged |
             layer_state_t::eShadowRadiusChanged | layer_state_t::eFixedTransformHintChanged |
             layer_state_t::eTrustedOverlayChanged | layer_state_t::eStretchChanged |
-            layer_state_t::eBufferCropChanged | layer_state_t::eDestinationFrameChanged |
-            layer_state_t::eDimmingEnabledChanged | layer_state_t::eExtendedRangeBrightnessChanged |
+            layer_state_t::eEdgeExtensionChanged | layer_state_t::eBufferCropChanged |
+            layer_state_t::eDestinationFrameChanged | layer_state_t::eDimmingEnabledChanged |
+            layer_state_t::eExtendedRangeBrightnessChanged |
             layer_state_t::eDesiredHdrHeadroomChanged |
             (FlagManager::getInstance().latch_unsignaled_with_auto_refresh_changed()
                      ? layer_state_t::eFlagsChanged
                      : 0);
     if (changedFlags & deniedChanges) {
-        ATRACE_FORMAT_INSTANT("%s: false [has denied changes flags 0x%" PRIx64 "]", __func__,
-                              changedFlags & deniedChanges);
+        SFTRACE_FORMAT_INSTANT("%s: false [has denied changes flags 0x%" PRIx64 "]", __func__,
+                               changedFlags & deniedChanges);
         return false;
     }
 
diff --git a/services/surfaceflinger/FrontEnd/TransactionHandler.cpp b/services/surfaceflinger/FrontEnd/TransactionHandler.cpp
index d3d9509..a1e8213 100644
--- a/services/surfaceflinger/FrontEnd/TransactionHandler.cpp
+++ b/services/surfaceflinger/FrontEnd/TransactionHandler.cpp
@@ -19,9 +19,9 @@
 #define LOG_TAG "SurfaceFlinger"
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
+#include <common/trace.h>
 #include <cutils/trace.h>
 #include <utils/Log.h>
-#include <utils/Trace.h>
 #include "FrontEnd/LayerLog.h"
 
 #include "TransactionHandler.h"
@@ -31,7 +31,7 @@
 void TransactionHandler::queueTransaction(TransactionState&& state) {
     mLocklessTransactionQueue.push(std::move(state));
     mPendingTransactionCount.fetch_add(1);
-    ATRACE_INT("TransactionQueue", static_cast<int>(mPendingTransactionCount.load()));
+    SFTRACE_INT("TransactionQueue", static_cast<int>(mPendingTransactionCount.load()));
 }
 
 void TransactionHandler::collectTransactions() {
@@ -71,7 +71,7 @@
     applyUnsignaledBufferTransaction(transactions, flushState);
 
     mPendingTransactionCount.fetch_sub(transactions.size());
-    ATRACE_INT("TransactionQueue", static_cast<int>(mPendingTransactionCount.load()));
+    SFTRACE_INT("TransactionQueue", static_cast<int>(mPendingTransactionCount.load()));
     return transactions;
 }
 
@@ -83,7 +83,7 @@
 
     // only apply an unsignaled buffer transaction if it's the first one
     if (!transactions.empty()) {
-        ATRACE_NAME("fence unsignaled");
+        SFTRACE_NAME("fence unsignaled");
         return;
     }
 
diff --git a/services/surfaceflinger/HdrLayerInfoReporter.cpp b/services/surfaceflinger/HdrLayerInfoReporter.cpp
index 2788332..85921bb 100644
--- a/services/surfaceflinger/HdrLayerInfoReporter.cpp
+++ b/services/surfaceflinger/HdrLayerInfoReporter.cpp
@@ -19,8 +19,8 @@
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <inttypes.h>
-#include <utils/Trace.h>
 
 #include "HdrLayerInfoReporter.h"
 
@@ -29,7 +29,7 @@
 using base::StringAppendF;
 
 void HdrLayerInfoReporter::dispatchHdrLayerInfo(const HdrLayerInfo& info) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (mHdrInfoHistory.size() == 0 || mHdrInfoHistory.back().info != info) {
         mHdrInfoHistory.next() = EventHistoryEntry{info};
     }
@@ -47,7 +47,7 @@
     }
 
     for (const auto& listener : toInvoke) {
-        ATRACE_NAME("invoking onHdrLayerInfoChanged");
+        SFTRACE_NAME("invoking onHdrLayerInfoChanged");
         listener->onHdrLayerInfoChanged(info.numberOfHdrLayers, info.maxW, info.maxH, info.flags,
                                         info.maxDesiredHdrSdrRatio);
     }
diff --git a/services/surfaceflinger/HdrSdrRatioOverlay.cpp b/services/surfaceflinger/HdrSdrRatioOverlay.cpp
index dfb1c1e..2088635 100644
--- a/services/surfaceflinger/HdrSdrRatioOverlay.cpp
+++ b/services/surfaceflinger/HdrSdrRatioOverlay.cpp
@@ -114,7 +114,7 @@
         ALOGE("%s: Failed to create buffer state layer", __func__);
         return;
     }
-    SurfaceComposerClient::Transaction()
+    createTransaction()
             .setLayer(mSurfaceControl->get(), INT32_MAX - 2)
             .setTrustedOverlay(mSurfaceControl->get(), true)
             .apply();
@@ -130,7 +130,7 @@
 }
 
 void HdrSdrRatioOverlay::setLayerStack(ui::LayerStack stack) {
-    SurfaceComposerClient::Transaction().setLayerStack(mSurfaceControl->get(), stack).apply();
+    createTransaction().setLayerStack(mSurfaceControl->get(), stack).apply();
 }
 
 void HdrSdrRatioOverlay::setViewport(ui::Size viewport) {
@@ -141,7 +141,7 @@
     // set the ratio frame to the top right of the screen
     frame.offsetBy(viewport.width - frame.width(), height >> 4);
 
-    SurfaceComposerClient::Transaction()
+    createTransaction()
             .setMatrix(mSurfaceControl->get(), frame.getWidth() / static_cast<float>(kBufferWidth),
                        0, 0, frame.getHeight() / static_cast<float>(kBufferHeight))
             .setPosition(mSurfaceControl->get(), frame.left, frame.top)
@@ -167,7 +167,7 @@
         }
     }();
 
-    SurfaceComposerClient::Transaction().setTransform(mSurfaceControl->get(), transform).apply();
+    createTransaction().setTransform(mSurfaceControl->get(), transform).apply();
 
     constexpr SkColor kMinRatioColor = SK_ColorBLUE;
     constexpr SkColor kMaxRatioColor = SK_ColorGREEN;
@@ -194,9 +194,21 @@
 
 void HdrSdrRatioOverlay::animate() {
     if (!std::isfinite(mCurrentHdrSdrRatio) || mCurrentHdrSdrRatio < 1.0f) return;
-    SurfaceComposerClient::Transaction()
+    createTransaction()
             .setBuffer(mSurfaceControl->get(), getOrCreateBuffers(mCurrentHdrSdrRatio))
             .apply();
 }
 
+SurfaceComposerClient::Transaction HdrSdrRatioOverlay::createTransaction() const {
+    constexpr float kFrameRate = 0.f;
+    constexpr int8_t kCompatibility = ANATIVEWINDOW_FRAME_RATE_NO_VOTE;
+    constexpr int8_t kSeamlessness = ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS;
+
+    const sp<SurfaceControl>& surface = mSurfaceControl->get();
+
+    SurfaceComposerClient::Transaction transaction;
+    transaction.setFrameRate(surface, kFrameRate, kCompatibility, kSeamlessness);
+    return transaction;
+}
+
 } // namespace android
\ No newline at end of file
diff --git a/services/surfaceflinger/HdrSdrRatioOverlay.h b/services/surfaceflinger/HdrSdrRatioOverlay.h
index 72d401d..ba88252 100644
--- a/services/surfaceflinger/HdrSdrRatioOverlay.h
+++ b/services/surfaceflinger/HdrSdrRatioOverlay.h
@@ -53,5 +53,7 @@
 
     size_t mIndex = 0;
     std::array<sp<GraphicBuffer>, 2> mRingBuffer;
+
+    SurfaceComposerClient::Transaction createTransaction() const;
 };
 } // namespace android
diff --git a/services/surfaceflinger/Jank/JankTracker.cpp b/services/surfaceflinger/Jank/JankTracker.cpp
new file mode 100644
index 0000000..8e0e084
--- /dev/null
+++ b/services/surfaceflinger/Jank/JankTracker.cpp
@@ -0,0 +1,206 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "JankTracker.h"
+
+#include <android/gui/IJankListener.h>
+#include "BackgroundExecutor.h"
+
+namespace android {
+
+namespace {
+
+constexpr size_t kJankDataBatchSize = 50;
+
+} // anonymous namespace
+
+std::atomic<size_t> JankTracker::sListenerCount(0);
+std::atomic<bool> JankTracker::sCollectAllJankDataForTesting(false);
+
+JankTracker::~JankTracker() {}
+
+void JankTracker::addJankListener(int32_t layerId, sp<IBinder> listener) {
+    // Increment right away, so that if an onJankData call comes in before the background thread has
+    // added this listener, it will not drop the data.
+    sListenerCount++;
+
+    BackgroundExecutor::getLowPriorityInstance().sendCallbacks(
+            {[layerId, listener = std::move(listener)]() {
+                JankTracker& tracker = getInstance();
+                const std::lock_guard<std::mutex> _l(tracker.mLock);
+                tracker.addJankListenerLocked(layerId, listener);
+            }});
+}
+
+void JankTracker::flushJankData(int32_t layerId) {
+    BackgroundExecutor::getLowPriorityInstance().sendCallbacks(
+            {[layerId]() { getInstance().doFlushJankData(layerId); }});
+}
+
+void JankTracker::removeJankListener(int32_t layerId, sp<IBinder> listener, int64_t afterVsync) {
+    BackgroundExecutor::getLowPriorityInstance().sendCallbacks(
+            {[layerId, listener = std::move(listener), afterVsync]() {
+                JankTracker& tracker = getInstance();
+                const std::lock_guard<std::mutex> _l(tracker.mLock);
+                tracker.markJankListenerForRemovalLocked(layerId, listener, afterVsync);
+            }});
+}
+
+void JankTracker::onJankData(int32_t layerId, gui::JankData data) {
+    if (sListenerCount == 0) {
+        return;
+    }
+
+    BackgroundExecutor::getLowPriorityInstance().sendCallbacks(
+            {[layerId, data = std::move(data)]() {
+                JankTracker& tracker = getInstance();
+
+                tracker.mLock.lock();
+                bool hasListeners = tracker.mJankListeners.count(layerId) > 0;
+                tracker.mLock.unlock();
+
+                if (!hasListeners && !sCollectAllJankDataForTesting) {
+                    return;
+                }
+
+                tracker.mJankDataLock.lock();
+                tracker.mJankData.emplace(layerId, data);
+                size_t count = tracker.mJankData.count(layerId);
+                tracker.mJankDataLock.unlock();
+
+                if (count >= kJankDataBatchSize && !sCollectAllJankDataForTesting) {
+                    tracker.doFlushJankData(layerId);
+                }
+            }});
+}
+
+void JankTracker::addJankListenerLocked(int32_t layerId, sp<IBinder> listener) {
+    for (auto it = mJankListeners.find(layerId); it != mJankListeners.end(); it++) {
+        if (it->second.mListener == listener) {
+            // Undo the duplicate increment in addJankListener.
+            sListenerCount--;
+            return;
+        }
+    }
+
+    mJankListeners.emplace(layerId, std::move(listener));
+}
+
+void JankTracker::doFlushJankData(int32_t layerId) {
+    std::vector<gui::JankData> jankData;
+    int64_t maxVsync = transferAvailableJankData(layerId, jankData);
+
+    std::vector<sp<IBinder>> toSend;
+
+    mLock.lock();
+    for (auto it = mJankListeners.find(layerId); it != mJankListeners.end();) {
+        if (!jankData.empty()) {
+            toSend.emplace_back(it->second.mListener);
+        }
+
+        int64_t removeAfter = it->second.mRemoveAfter;
+        if (removeAfter != -1 && removeAfter <= maxVsync) {
+            it = mJankListeners.erase(it);
+            sListenerCount--;
+        } else {
+            it++;
+        }
+    }
+    mLock.unlock();
+
+    for (const auto& listener : toSend) {
+        binder::Status status = interface_cast<gui::IJankListener>(listener)->onJankData(jankData);
+        if (status.exceptionCode() == binder::Status::EX_NULL_POINTER) {
+            // Remove any listeners, where the App side has gone away, without
+            // deregistering.
+            dropJankListener(layerId, listener);
+        }
+    }
+}
+
+void JankTracker::markJankListenerForRemovalLocked(int32_t layerId, sp<IBinder> listener,
+                                                   int64_t afterVysnc) {
+    for (auto it = mJankListeners.find(layerId); it != mJankListeners.end(); it++) {
+        if (it->second.mListener == listener) {
+            it->second.mRemoveAfter = std::max(static_cast<int64_t>(0), afterVysnc);
+            return;
+        }
+    }
+}
+
+int64_t JankTracker::transferAvailableJankData(int32_t layerId,
+                                               std::vector<gui::JankData>& outJankData) {
+    const std::lock_guard<std::mutex> _l(mJankDataLock);
+    int64_t maxVsync = 0;
+    auto range = mJankData.equal_range(layerId);
+    for (auto it = range.first; it != range.second;) {
+        maxVsync = std::max(it->second.frameVsyncId, maxVsync);
+        outJankData.emplace_back(std::move(it->second));
+        it = mJankData.erase(it);
+    }
+    return maxVsync;
+}
+
+void JankTracker::dropJankListener(int32_t layerId, sp<IBinder> listener) {
+    const std::lock_guard<std::mutex> _l(mLock);
+    for (auto it = mJankListeners.find(layerId); it != mJankListeners.end(); it++) {
+        if (it->second.mListener == listener) {
+            mJankListeners.erase(it);
+            sListenerCount--;
+            return;
+        }
+    }
+}
+
+void JankTracker::clearAndStartCollectingAllJankDataForTesting() {
+    BackgroundExecutor::getLowPriorityInstance().flushQueue();
+
+    // Clear all past tracked jank data.
+    JankTracker& tracker = getInstance();
+    const std::lock_guard<std::mutex> _l(tracker.mJankDataLock);
+    tracker.mJankData.clear();
+
+    // Pretend there's at least one listener.
+    sListenerCount++;
+    sCollectAllJankDataForTesting = true;
+}
+
+std::vector<gui::JankData> JankTracker::getCollectedJankDataForTesting(int32_t layerId) {
+    JankTracker& tracker = getInstance();
+    const std::lock_guard<std::mutex> _l(tracker.mJankDataLock);
+
+    auto range = tracker.mJankData.equal_range(layerId);
+    std::vector<gui::JankData> result;
+    std::transform(range.first, range.second, std::back_inserter(result),
+                   [](std::pair<int32_t, gui::JankData> layerIdToJankData) {
+                       return layerIdToJankData.second;
+                   });
+
+    return result;
+}
+
+void JankTracker::clearAndStopCollectingAllJankDataForTesting() {
+    // Undo startCollectingAllJankDataForTesting.
+    sListenerCount--;
+    sCollectAllJankDataForTesting = false;
+
+    // Clear all tracked jank data.
+    JankTracker& tracker = getInstance();
+    const std::lock_guard<std::mutex> _l(tracker.mJankDataLock);
+    tracker.mJankData.clear();
+}
+
+} // namespace android
diff --git a/services/surfaceflinger/Jank/JankTracker.h b/services/surfaceflinger/Jank/JankTracker.h
new file mode 100644
index 0000000..5917358
--- /dev/null
+++ b/services/surfaceflinger/Jank/JankTracker.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <cstdint>
+#include <mutex>
+#include <unordered_map>
+
+#include <android/gui/JankData.h>
+#include <binder/IBinder.h>
+#include <utils/Mutex.h>
+
+namespace android {
+namespace frametimeline {
+class FrameTimelineTest;
+}
+
+/**
+ * JankTracker maintains a backlog of frame jank classification and manages and notififies any
+ * registered jank data listeners.
+ */
+class JankTracker {
+public:
+    ~JankTracker();
+
+    static void addJankListener(int32_t layerId, sp<IBinder> listener);
+    static void flushJankData(int32_t layerId);
+    static void removeJankListener(int32_t layerId, sp<IBinder> listener, int64_t afterVysnc);
+
+    static void onJankData(int32_t layerId, gui::JankData data);
+
+protected:
+    // The following methods can be used to force the tracker to collect all jank data and not
+    // flush it for a short time period and should *only* be used for testing. Every call to
+    // clearAndStartCollectingAllJankDataForTesting needs to be followed by a call to
+    // clearAndStopCollectingAllJankDataForTesting.
+    static void clearAndStartCollectingAllJankDataForTesting();
+    static std::vector<gui::JankData> getCollectedJankDataForTesting(int32_t layerId);
+    static void clearAndStopCollectingAllJankDataForTesting();
+
+    friend class frametimeline::FrameTimelineTest;
+
+private:
+    JankTracker() {}
+    JankTracker(const JankTracker&) = delete;
+    JankTracker(JankTracker&&) = delete;
+
+    JankTracker& operator=(const JankTracker&) = delete;
+    JankTracker& operator=(JankTracker&&) = delete;
+
+    static JankTracker& getInstance() {
+        static JankTracker instance;
+        return instance;
+    }
+
+    void addJankListenerLocked(int32_t layerId, sp<IBinder> listener) REQUIRES(mLock);
+    void doFlushJankData(int32_t layerId);
+    void markJankListenerForRemovalLocked(int32_t layerId, sp<IBinder> listener, int64_t afterVysnc)
+            REQUIRES(mLock);
+
+    int64_t transferAvailableJankData(int32_t layerId, std::vector<gui::JankData>& jankData);
+    void dropJankListener(int32_t layerId, sp<IBinder> listener);
+
+    struct Listener {
+        sp<IBinder> mListener;
+        int64_t mRemoveAfter;
+
+        Listener(sp<IBinder>&& listener) : mListener(listener), mRemoveAfter(-1) {}
+    };
+
+    // We keep track of the current listener count, so that the onJankData call, which is on the
+    // main thread, can short-curcuit the scheduling on the background thread (which involves
+    // locking) if there are no listeners registered, which is the most common case.
+    static std::atomic<size_t> sListenerCount;
+    static std::atomic<bool> sCollectAllJankDataForTesting;
+
+    std::mutex mLock;
+    std::unordered_multimap<int32_t, Listener> mJankListeners GUARDED_BY(mLock);
+    std::mutex mJankDataLock;
+    std::unordered_multimap<int32_t, gui::JankData> mJankData GUARDED_BY(mJankDataLock);
+
+    friend class JankTrackerTest;
+};
+
+} // namespace android
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index c39b757..abdf92c 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -27,6 +27,7 @@
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <binder/IPCThreadState.h>
+#include <common/trace.h>
 #include <compositionengine/CompositionEngine.h>
 #include <compositionengine/Display.h>
 #include <compositionengine/LayerFECompositionState.h>
@@ -39,7 +40,6 @@
 #include <ftl/fake_guard.h>
 #include <gui/BufferItem.h>
 #include <gui/Surface.h>
-#include <gui/TraceUtils.h>
 #include <math.h>
 #include <private/android_filesystem_config.h>
 #include <renderengine/RenderEngine.h>
@@ -58,7 +58,6 @@
 #include <utils/Log.h>
 #include <utils/NativeHandle.h>
 #include <utils/StopWatch.h>
-#include <utils/Trace.h>
 
 #include <algorithm>
 #include <mutex>
@@ -317,7 +316,7 @@
 void Layer::addToCurrentState() {
     if (mRemovedFromDrawingState) {
         mRemovedFromDrawingState = false;
-        mFlinger->mScheduler->registerLayer(this);
+        mFlinger->mScheduler->registerLayer(this, FrameRateCompatibility::Default);
         mFlinger->removeFromOffscreenLayers(this);
     }
 
@@ -767,47 +766,12 @@
     return (p != nullptr) ? p->isSecure() : false;
 }
 
-void Layer::transferAvailableJankData(const std::deque<sp<CallbackHandle>>& handles,
-                                      std::vector<JankData>& jankData) {
-    if (mPendingJankClassifications.empty() ||
-        !mPendingJankClassifications.front()->getJankType()) {
-        return;
-    }
-
-    bool includeJankData = false;
-    for (const auto& handle : handles) {
-        for (const auto& cb : handle->callbackIds) {
-            if (cb.includeJankData) {
-                includeJankData = true;
-                break;
-            }
-        }
-
-        if (includeJankData) {
-            jankData.reserve(mPendingJankClassifications.size());
-            break;
-        }
-    }
-
-    while (!mPendingJankClassifications.empty() &&
-           mPendingJankClassifications.front()->getJankType()) {
-        if (includeJankData) {
-            std::shared_ptr<frametimeline::SurfaceFrame> surfaceFrame =
-                    mPendingJankClassifications.front();
-            jankData.emplace_back(JankData(surfaceFrame->getToken(),
-                                           surfaceFrame->getJankType().value(),
-                                           surfaceFrame->getRenderRate().getPeriodNsecs()));
-        }
-        mPendingJankClassifications.pop_front();
-    }
-}
-
 // ----------------------------------------------------------------------------
 // transaction
 // ----------------------------------------------------------------------------
 
 uint32_t Layer::doTransaction(uint32_t flags) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     // TODO: This is unfortunate.
     mDrawingStateModified = mDrawingState.modified;
@@ -1136,42 +1100,6 @@
     return true;
 }
 
-bool Layer::setFrameRateSelectionPriority(int32_t priority) {
-    if (mDrawingState.frameRateSelectionPriority == priority) return false;
-    mDrawingState.frameRateSelectionPriority = priority;
-    mDrawingState.sequence++;
-    mDrawingState.modified = true;
-    setTransactionFlags(eTransactionNeeded);
-    return true;
-}
-
-int32_t Layer::getFrameRateSelectionPriority() const {
-    // Check if layer has priority set.
-    if (mDrawingState.frameRateSelectionPriority != PRIORITY_UNSET) {
-        return mDrawingState.frameRateSelectionPriority;
-    }
-    // If not, search whether its parents have it set.
-    sp<Layer> parent = getParent();
-    if (parent != nullptr) {
-        return parent->getFrameRateSelectionPriority();
-    }
-
-    return Layer::PRIORITY_UNSET;
-}
-
-bool Layer::setDefaultFrameRateCompatibility(FrameRateCompatibility compatibility) {
-    if (mDrawingState.defaultFrameRateCompatibility == compatibility) return false;
-    mDrawingState.defaultFrameRateCompatibility = compatibility;
-    mDrawingState.modified = true;
-    mFlinger->mScheduler->setDefaultFrameRateCompatibility(sequence, compatibility);
-    setTransactionFlags(eTransactionNeeded);
-    return true;
-}
-
-scheduler::FrameRateCompatibility Layer::getDefaultFrameRateCompatibility() const {
-    return mDrawingState.defaultFrameRateCompatibility;
-}
-
 bool Layer::isLayerFocusedBasedOnPriority(int32_t priority) {
     return priority == PRIORITY_FOCUSED_WITH_MODE || priority == PRIORITY_FOCUSED_WITHOUT_MODE;
 };
@@ -1238,119 +1166,8 @@
     return StretchEffect{};
 }
 
-bool Layer::propagateFrameRateForLayerTree(FrameRate parentFrameRate, bool overrideChildren,
-                                           bool* transactionNeeded) {
-    // Gets the frame rate to propagate to children.
-    const auto frameRate = [&] {
-        if (overrideChildren && parentFrameRate.isValid()) {
-            return parentFrameRate;
-        }
-
-        if (mDrawingState.frameRate.isValid()) {
-            return mDrawingState.frameRate;
-        }
-
-        return parentFrameRate;
-    }();
-
-    auto now = systemTime();
-    *transactionNeeded |= setFrameRateForLayerTreeLegacy(frameRate, now);
-
-    // The frame rate is propagated to the children by default, but some properties may override it.
-    bool childrenHaveFrameRate = false;
-    const bool overrideChildrenFrameRate = overrideChildren || shouldOverrideChildrenFrameRate();
-    const bool canPropagateFrameRate = shouldPropagateFrameRate() || overrideChildrenFrameRate;
-    for (const sp<Layer>& child : mCurrentChildren) {
-        childrenHaveFrameRate |=
-                child->propagateFrameRateForLayerTree(canPropagateFrameRate ? frameRate
-                                                                            : FrameRate(),
-                                                      overrideChildrenFrameRate, transactionNeeded);
-    }
-
-    // If we don't have a valid frame rate specification, but the children do, we set this
-    // layer as NoVote to allow the children to control the refresh rate
-    if (!frameRate.isValid() && childrenHaveFrameRate) {
-        *transactionNeeded |=
-                setFrameRateForLayerTreeLegacy(FrameRate(Fps(), FrameRateCompatibility::NoVote),
-                                               now);
-    }
-
-    // We return whether this layer or its children has a vote. We ignore ExactOrMultiple votes for
-    // the same reason we are allowing touch boost for those layers. See
-    // RefreshRateSelector::rankFrameRates for details.
-    const auto layerVotedWithDefaultCompatibility =
-            frameRate.vote.rate.isValid() && frameRate.vote.type == FrameRateCompatibility::Default;
-    const auto layerVotedWithNoVote = frameRate.vote.type == FrameRateCompatibility::NoVote;
-    const auto layerVotedWithCategory = frameRate.category != FrameRateCategory::Default;
-    const auto layerVotedWithExactCompatibility =
-            frameRate.vote.rate.isValid() && frameRate.vote.type == FrameRateCompatibility::Exact;
-    return layerVotedWithDefaultCompatibility || layerVotedWithNoVote || layerVotedWithCategory ||
-            layerVotedWithExactCompatibility || childrenHaveFrameRate;
-}
-
-void Layer::updateTreeHasFrameRateVote() {
-    const auto root = [&]() -> sp<Layer> {
-        sp<Layer> layer = sp<Layer>::fromExisting(this);
-        while (auto parent = layer->getParent()) {
-            layer = parent;
-        }
-        return layer;
-    }();
-
-    bool transactionNeeded = false;
-    root->propagateFrameRateForLayerTree({}, false, &transactionNeeded);
-
-    // TODO(b/195668952): we probably don't need eTraversalNeeded here
-    if (transactionNeeded) {
-        mFlinger->setTransactionFlags(eTraversalNeeded);
-    }
-}
-
-bool Layer::setFrameRate(FrameRate::FrameRateVote frameRateVote) {
-    if (mDrawingState.frameRate.vote == frameRateVote) {
-        return false;
-    }
-
-    mDrawingState.sequence++;
-    mDrawingState.frameRate.vote = frameRateVote;
-    mDrawingState.modified = true;
-
-    updateTreeHasFrameRateVote();
-
-    setTransactionFlags(eTransactionNeeded);
-    return true;
-}
-
-bool Layer::setFrameRateCategory(FrameRateCategory category, bool smoothSwitchOnly) {
-    if (mDrawingState.frameRate.category == category &&
-        mDrawingState.frameRate.categorySmoothSwitchOnly == smoothSwitchOnly) {
-        return false;
-    }
-
-    mDrawingState.sequence++;
-    mDrawingState.frameRate.category = category;
-    mDrawingState.frameRate.categorySmoothSwitchOnly = smoothSwitchOnly;
-    mDrawingState.modified = true;
-
-    updateTreeHasFrameRateVote();
-
-    setTransactionFlags(eTransactionNeeded);
-    return true;
-}
-
-bool Layer::setFrameRateSelectionStrategy(FrameRateSelectionStrategy strategy) {
-    if (mDrawingState.frameRateSelectionStrategy == strategy) return false;
-    mDrawingState.frameRateSelectionStrategy = strategy;
-    mDrawingState.sequence++;
-    mDrawingState.modified = true;
-
-    updateTreeHasFrameRateVote();
-    setTransactionFlags(eTransactionNeeded);
-    return true;
-}
-
 void Layer::setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info,
-                                                      nsecs_t postTime) {
+                                                      nsecs_t postTime, gui::GameMode gameMode) {
     mDrawingState.postTime = postTime;
 
     // Check if one of the bufferlessSurfaceFramesTX contains the same vsyncId. This can happen if
@@ -1366,14 +1183,15 @@
         mDrawingState.bufferSurfaceFrameTX->setActualQueueTime(postTime);
     } else {
         mDrawingState.bufferSurfaceFrameTX =
-                createSurfaceFrameForBuffer(info, postTime, mTransactionName);
+                createSurfaceFrameForBuffer(info, postTime, mTransactionName, gameMode);
     }
 
-    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName);
+    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName, gameMode);
 }
 
 void Layer::setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
-                                                          nsecs_t postTime) {
+                                                          nsecs_t postTime,
+                                                          gui::GameMode gameMode) {
     mDrawingState.frameTimelineInfo = info;
     mDrawingState.postTime = postTime;
     mDrawingState.modified = true;
@@ -1392,17 +1210,17 @@
     // targeting different vsyncs).
     auto it = mDrawingState.bufferlessSurfaceFramesTX.find(info.vsyncId);
     if (it == mDrawingState.bufferlessSurfaceFramesTX.end()) {
-        auto surfaceFrame = createSurfaceFrameForTransaction(info, postTime);
+        auto surfaceFrame = createSurfaceFrameForTransaction(info, postTime, gameMode);
         mDrawingState.bufferlessSurfaceFramesTX[info.vsyncId] = surfaceFrame;
     } else {
         if (it->second->getPresentState() == PresentState::Presented) {
             // If the SurfaceFrame was already presented, its safe to overwrite it since it must
             // have been from previous vsync.
-            it->second = createSurfaceFrameForTransaction(info, postTime);
+            it->second = createSurfaceFrameForTransaction(info, postTime, gameMode);
         }
     }
 
-    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName);
+    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName, gameMode);
 }
 
 void Layer::addSurfaceFrameDroppedForBuffer(
@@ -1422,12 +1240,12 @@
 }
 
 std::shared_ptr<frametimeline::SurfaceFrame> Layer::createSurfaceFrameForTransaction(
-        const FrameTimelineInfo& info, nsecs_t postTime) {
+        const FrameTimelineInfo& info, nsecs_t postTime, gui::GameMode gameMode) {
     auto surfaceFrame =
             mFlinger->mFrameTimeline->createSurfaceFrameForToken(info, mOwnerPid, mOwnerUid,
                                                                  getSequence(), mName,
                                                                  mTransactionName,
-                                                                 /*isBuffer*/ false, getGameMode());
+                                                                 /*isBuffer*/ false, gameMode);
     surfaceFrame->setActualStartTime(info.startTimeNanos);
     // For Transactions, the post time is considered to be both queue and acquire fence time.
     surfaceFrame->setActualQueueTime(postTime);
@@ -1436,16 +1254,16 @@
     if (fps) {
         surfaceFrame->setRenderRate(*fps);
     }
-    onSurfaceFrameCreated(surfaceFrame);
     return surfaceFrame;
 }
 
 std::shared_ptr<frametimeline::SurfaceFrame> Layer::createSurfaceFrameForBuffer(
-        const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName) {
+        const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName,
+        gui::GameMode gameMode) {
     auto surfaceFrame =
             mFlinger->mFrameTimeline->createSurfaceFrameForToken(info, mOwnerPid, mOwnerUid,
                                                                  getSequence(), mName, debugName,
-                                                                 /*isBuffer*/ true, getGameMode());
+                                                                 /*isBuffer*/ true, gameMode);
     surfaceFrame->setActualStartTime(info.startTimeNanos);
     // For buffers, acquire fence time will set during latch.
     surfaceFrame->setActualQueueTime(queueTime);
@@ -1453,12 +1271,11 @@
     if (fps) {
         surfaceFrame->setRenderRate(*fps);
     }
-    onSurfaceFrameCreated(surfaceFrame);
     return surfaceFrame;
 }
 
 void Layer::setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
-                                                  std::string debugName) {
+                                                  std::string debugName, gui::GameMode gameMode) {
     if (info.skippedFrameVsyncId == FrameTimelineInfo::INVALID_VSYNC_ID) {
         return;
     }
@@ -1470,7 +1287,7 @@
             mFlinger->mFrameTimeline->createSurfaceFrameForToken(skippedFrameTimelineInfo,
                                                                  mOwnerPid, mOwnerUid,
                                                                  getSequence(), mName, debugName,
-                                                                 /*isBuffer*/ false, getGameMode());
+                                                                 /*isBuffer*/ false, gameMode);
     surfaceFrame->setActualStartTime(skippedFrameTimelineInfo.skippedFrameStartTimeNanos);
     // For Transactions, the post time is considered to be both queue and acquire fence time.
     surfaceFrame->setActualQueueTime(postTime);
@@ -1479,29 +1296,9 @@
     if (fps) {
         surfaceFrame->setRenderRate(*fps);
     }
-    onSurfaceFrameCreated(surfaceFrame);
     addSurfaceFrameDroppedForBuffer(surfaceFrame, postTime);
 }
 
-bool Layer::setFrameRateForLayerTreeLegacy(FrameRate frameRate, nsecs_t now) {
-    if (mDrawingState.frameRateForLayerTree == frameRate) {
-        return false;
-    }
-
-    mDrawingState.frameRateForLayerTree = frameRate;
-
-    // TODO(b/195668952): we probably don't need to dirty visible regions here
-    // or even store frameRateForLayerTree in mDrawingState
-    mDrawingState.sequence++;
-    mDrawingState.modified = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    mFlinger->mScheduler
-            ->recordLayerHistory(sequence, getLayerProps(), now, now,
-                                 scheduler::LayerHistory::LayerUpdateType::SetFrameRate);
-    return true;
-}
-
 bool Layer::setFrameRateForLayerTree(FrameRate frameRate, const scheduler::LayerProps& layerProps,
                                      nsecs_t now) {
     if (mDrawingState.frameRateForLayerTree == frameRate) {
@@ -1580,57 +1377,6 @@
     result.append("\n");
 }
 
-void Layer::miniDumpLegacy(std::string& result, const DisplayDevice& display) const {
-    const auto outputLayer = findOutputLayerForDisplay(&display);
-    if (!outputLayer) {
-        return;
-    }
-
-    std::string name;
-    if (mName.length() > 77) {
-        std::string shortened;
-        shortened.append(mName, 0, 36);
-        shortened.append("[...]");
-        shortened.append(mName, mName.length() - 36);
-        name = std::move(shortened);
-    } else {
-        name = mName;
-    }
-
-    StringAppendF(&result, " %s\n", name.c_str());
-
-    const State& layerState(getDrawingState());
-    const auto& outputLayerState = outputLayer->getState();
-
-    if (layerState.zOrderRelativeOf != nullptr || mDrawingParent != nullptr) {
-        StringAppendF(&result, "  rel %6d | ", layerState.z);
-    } else {
-        StringAppendF(&result, "  %10d | ", layerState.z);
-    }
-    StringAppendF(&result, "  %10d | ", mWindowType);
-    StringAppendF(&result, "%10s | ", toString(getCompositionType(display)).c_str());
-    StringAppendF(&result, "%10s | ", toString(outputLayerState.bufferTransform).c_str());
-    const Rect& frame = outputLayerState.displayFrame;
-    StringAppendF(&result, "%4d %4d %4d %4d | ", frame.left, frame.top, frame.right, frame.bottom);
-    const FloatRect& crop = outputLayerState.sourceCrop;
-    StringAppendF(&result, "%6.1f %6.1f %6.1f %6.1f | ", crop.left, crop.top, crop.right,
-                  crop.bottom);
-    const auto frameRate = getFrameRateForLayerTree();
-    if (frameRate.vote.rate.isValid() || frameRate.vote.type != FrameRateCompatibility::Default) {
-        StringAppendF(&result, "%s %15s %17s", to_string(frameRate.vote.rate).c_str(),
-                      ftl::enum_string(frameRate.vote.type).c_str(),
-                      ftl::enum_string(frameRate.vote.seamlessness).c_str());
-    } else {
-        result.append(41, ' ');
-    }
-
-    const auto focused = isLayerFocusedBasedOnPriority(getFrameRateSelectionPriority());
-    StringAppendF(&result, "    [%s]\n", focused ? "*" : " ");
-
-    result.append(kDumpTableRowLength, '-');
-    result.append("\n");
-}
-
 void Layer::miniDump(std::string& result, const frontend::LayerSnapshot& snapshot,
                      const DisplayDevice& display) const {
     const auto outputLayer = findOutputLayerForDisplay(&display, snapshot.path);
@@ -1710,26 +1456,12 @@
     return count;
 }
 
-void Layer::setGameModeForTree(GameMode gameMode) {
-    const auto& currentState = getDrawingState();
-    if (currentState.metadata.has(gui::METADATA_GAME_MODE)) {
-        gameMode =
-                static_cast<GameMode>(currentState.metadata.getInt32(gui::METADATA_GAME_MODE, 0));
-    }
-    setGameMode(gameMode);
-    for (const sp<Layer>& child : mCurrentChildren) {
-        child->setGameModeForTree(gameMode);
-    }
-}
-
 void Layer::addChild(const sp<Layer>& layer) {
     mFlinger->mSomeChildrenChanged = true;
     setTransactionFlags(eTransactionNeeded);
 
     mCurrentChildren.add(layer);
     layer->setParent(sp<Layer>::fromExisting(this));
-    layer->setGameModeForTree(mGameMode);
-    updateTreeHasFrameRateVote();
 }
 
 ssize_t Layer::removeChild(const sp<Layer>& layer) {
@@ -1739,10 +1471,6 @@
     layer->setParent(nullptr);
     const auto removeResult = mCurrentChildren.remove(layer);
 
-    updateTreeHasFrameRateVote();
-    layer->setGameModeForTree(GameMode::Unsupported);
-    layer->updateTreeHasFrameRateVote();
-
     return removeResult;
 }
 
@@ -2579,10 +2307,6 @@
 compositionengine::OutputLayer* Layer::findOutputLayerForDisplay(
         const DisplayDevice* display) const {
     if (!display) return nullptr;
-    if (!mFlinger->mLayerLifecycleManagerEnabled) {
-        return display->getCompositionDisplay()->getOutputLayerForLayer(
-                getCompositionEngineLayerFE());
-    }
     sp<LayerFE> layerFE;
     frontend::LayerHierarchy::TraversalPath path{.id = static_cast<uint32_t>(sequence)};
     for (auto& [p, layer] : mLayerFEs) {
@@ -2598,10 +2322,6 @@
 compositionengine::OutputLayer* Layer::findOutputLayerForDisplay(
         const DisplayDevice* display, const frontend::LayerHierarchy::TraversalPath& path) const {
     if (!display) return nullptr;
-    if (!mFlinger->mLayerLifecycleManagerEnabled) {
-        return display->getCompositionDisplay()->getOutputLayerForLayer(
-                getCompositionEngineLayerFE());
-    }
     sp<LayerFE> layerFE;
     for (auto& [p, layer] : mLayerFEs) {
         if (p == path) {
@@ -2821,7 +2541,7 @@
     if (!listener) {
         return;
     }
-    ATRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64, getDebugName(), framenumber);
+    SFTRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64, getDebugName(), framenumber);
     uint32_t currentMaxAcquiredBufferCount =
             mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(mOwnerUid);
     listener->onReleaseBuffer({buffer->getId(), framenumber},
@@ -2942,33 +2662,14 @@
     }
 }
 
-void Layer::onSurfaceFrameCreated(
-        const std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame) {
-    while (mPendingJankClassifications.size() >= kPendingClassificationMaxSurfaceFrames) {
-        // Too many SurfaceFrames pending classification. The front of the deque is probably not
-        // tracked by FrameTimeline and will never be presented. This will only result in a memory
-        // leak.
-        if (hasBufferOrSidebandStreamInDrawing()) {
-            // Only log for layers with a buffer, since we expect the jank data to be drained for
-            // these, while there may be no jank listeners for bufferless layers.
-            ALOGW("Removing the front of pending jank deque from layer - %s to prevent memory leak",
-                  mName.c_str());
-            std::string miniDump = mPendingJankClassifications.front()->miniDump();
-            ALOGD("Head SurfaceFrame mini dump\n%s", miniDump.c_str());
-        }
-        mPendingJankClassifications.pop_front();
-    }
-    mPendingJankClassifications.emplace_back(surfaceFrame);
-}
-
 void Layer::releasePendingBuffer(nsecs_t dequeueReadyTime) {
     for (const auto& handle : mDrawingState.callbackHandles) {
         handle->transformHint = mTransformHint;
         handle->dequeueReadyTime = dequeueReadyTime;
         handle->currentMaxAcquiredBufferCount =
                 mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(mOwnerUid);
-        ATRACE_FORMAT_INSTANT("releasePendingBuffer %s - %" PRIu64, getDebugName(),
-                              handle->previousReleaseCallbackId.framenumber);
+        SFTRACE_FORMAT_INSTANT("releasePendingBuffer %s - %" PRIu64, getDebugName(),
+                               handle->previousReleaseCallbackId.framenumber);
     }
 
     for (auto& handle : mDrawingState.callbackHandles) {
@@ -2978,10 +2679,7 @@
         }
     }
 
-    std::vector<JankData> jankData;
-    transferAvailableJankData(mDrawingState.callbackHandles, jankData);
-    mFlinger->getTransactionCallbackInvoker().addCallbackHandles(mDrawingState.callbackHandles,
-                                                                 jankData);
+    mFlinger->getTransactionCallbackInvoker().addCallbackHandles(mDrawingState.callbackHandles);
     mDrawingState.callbackHandles = {};
 }
 
@@ -3151,14 +2849,14 @@
 
 bool Layer::setBuffer(std::shared_ptr<renderengine::ExternalTexture>& buffer,
                       const BufferData& bufferData, nsecs_t postTime, nsecs_t desiredPresentTime,
-                      bool isAutoTimestamp, const FrameTimelineInfo& info) {
-    ATRACE_FORMAT("setBuffer %s - hasBuffer=%s", getDebugName(), (buffer ? "true" : "false"));
+                      bool isAutoTimestamp, const FrameTimelineInfo& info, gui::GameMode gameMode) {
+    SFTRACE_FORMAT("setBuffer %s - hasBuffer=%s", getDebugName(), (buffer ? "true" : "false"));
 
     const bool frameNumberChanged =
             bufferData.flags.test(BufferData::BufferDataChange::frameNumberChanged);
     const uint64_t frameNumber =
             frameNumberChanged ? bufferData.frameNumber : mDrawingState.frameNumber + 1;
-    ATRACE_FORMAT_INSTANT("setBuffer %s - %" PRIu64, getDebugName(), frameNumber);
+    SFTRACE_FORMAT_INSTANT("setBuffer %s - %" PRIu64, getDebugName(), frameNumber);
 
     if (mDrawingState.buffer) {
         releasePreviousBuffer();
@@ -3177,12 +2875,12 @@
         resetDrawingStateBufferInfo();
         setTransactionFlags(eTransactionNeeded);
         mDrawingState.bufferSurfaceFrameTX = nullptr;
-        setFrameTimelineVsyncForBufferlessTransaction(info, postTime);
+        setFrameTimelineVsyncForBufferlessTransaction(info, postTime, gameMode);
         return true;
     } else {
         // release sideband stream if it exists and a non null buffer is being set
         if (mDrawingState.sidebandStream != nullptr) {
-            setSidebandStream(nullptr, info, postTime);
+            setSidebandStream(nullptr, info, postTime, gameMode);
         }
     }
 
@@ -3221,9 +2919,9 @@
 
     const int32_t layerId = getSequence();
     mFlinger->mTimeStats->setPostTime(layerId, mDrawingState.frameNumber, getName().c_str(),
-                                      mOwnerUid, postTime, getGameMode());
+                                      mOwnerUid, postTime, gameMode);
 
-    setFrameTimelineVsyncForBufferTransaction(info, postTime);
+    setFrameTimelineVsyncForBufferTransaction(info, postTime, gameMode);
 
     if (bufferData.dequeueTime > 0) {
         const uint64_t bufferId = mDrawingState.buffer->getId();
@@ -3253,10 +2951,10 @@
 }
 
 void Layer::recordLayerHistoryBufferUpdate(const scheduler::LayerProps& layerProps, nsecs_t now) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const nsecs_t presentTime = [&] {
         if (!mDrawingState.isAutoTimestamp) {
-            ATRACE_FORMAT_INSTANT("desiredPresentTime");
+            SFTRACE_FORMAT_INSTANT("desiredPresentTime");
             return mDrawingState.desiredPresentTime;
         }
 
@@ -3265,7 +2963,7 @@
                     mFlinger->mFrameTimeline->getTokenManager()->getPredictionsForToken(
                             mDrawingState.latchedVsyncId);
             if (prediction.has_value()) {
-                ATRACE_FORMAT_INSTANT("predictedPresentTime");
+                SFTRACE_FORMAT_INSTANT("predictedPresentTime");
                 mMaxTimeForUseVsyncId = prediction->presentTime +
                         scheduler::LayerHistory::kMaxPeriodForHistory.count();
                 return prediction->presentTime;
@@ -3301,9 +2999,9 @@
         return static_cast<nsecs_t>(0);
     }();
 
-    if (ATRACE_ENABLED() && presentTime > 0) {
+    if (SFTRACE_ENABLED() && presentTime > 0) {
         const auto presentIn = TimePoint::fromNs(presentTime) - TimePoint::now();
-        ATRACE_FORMAT_INSTANT("presentIn %s", to_string(presentIn).c_str());
+        SFTRACE_FORMAT_INSTANT("presentIn %s", to_string(presentIn).c_str());
     }
 
     mFlinger->mScheduler->recordLayerHistory(sequence, layerProps, presentTime, now,
@@ -3378,7 +3076,7 @@
 }
 
 bool Layer::setSidebandStream(const sp<NativeHandle>& sidebandStream, const FrameTimelineInfo& info,
-                              nsecs_t postTime) {
+                              nsecs_t postTime, gui::GameMode gameMode) {
     if (mDrawingState.sidebandStream == sidebandStream) return false;
 
     if (mDrawingState.sidebandStream != nullptr && sidebandStream == nullptr) {
@@ -3393,7 +3091,7 @@
         releasePreviousBuffer();
         resetDrawingStateBufferInfo();
         mDrawingState.bufferSurfaceFrameTX = nullptr;
-        setFrameTimelineVsyncForBufferlessTransaction(info, postTime);
+        setFrameTimelineVsyncForBufferlessTransaction(info, postTime, gameMode);
     }
     setTransactionFlags(eTransactionNeeded);
     if (!mSidebandStreamChanged.exchange(true)) {
@@ -3451,9 +3149,7 @@
     if (!remainingHandles.empty()) {
         // Notify the transaction completed threads these handles are done. These are only the
         // handles that were not added to the mDrawingState, which will be notified later.
-        std::vector<JankData> jankData;
-        transferAvailableJankData(remainingHandles, jankData);
-        mFlinger->getTransactionCallbackInvoker().addCallbackHandles(remainingHandles, jankData);
+        mFlinger->getTransactionCallbackInvoker().addCallbackHandles(remainingHandles);
     }
 
     mReleasePreviousBuffer = false;
@@ -3629,12 +3325,12 @@
         ui::Dataspace dataspace = ui::Dataspace::UNKNOWN;
         status_t err = OK;
         {
-            ATRACE_NAME("getDataspace");
+            SFTRACE_NAME("getDataspace");
             err = mapper.getDataspace(mBufferInfo.mBuffer->getBuffer()->handle, &dataspace);
         }
         if (err != OK || dataspace != mBufferInfo.mDataspace) {
             {
-                ATRACE_NAME("setDataspace");
+                SFTRACE_NAME("setDataspace");
                 err = mapper.setDataspace(mBufferInfo.mBuffer->getBuffer()->handle,
                                           static_cast<ui::Dataspace>(mBufferInfo.mDataspace));
             }
@@ -3698,7 +3394,7 @@
 }
 
 void Layer::tracePendingBufferCount(int32_t pendingBuffers) {
-    ATRACE_INT(mBlastTransactionName.c_str(), pendingBuffers);
+    SFTRACE_INT(mBlastTransactionName.c_str(), pendingBuffers);
 }
 
 /*
@@ -3776,41 +3472,41 @@
                      : layer_state_t::eAutoRefreshChanged);
 
     if ((s.what & requiredFlags) != requiredFlags) {
-        ATRACE_FORMAT_INSTANT("%s: false [missing required flags 0x%" PRIx64 "]", __func__,
-                              (s.what | requiredFlags) & ~s.what);
+        SFTRACE_FORMAT_INSTANT("%s: false [missing required flags 0x%" PRIx64 "]", __func__,
+                               (s.what | requiredFlags) & ~s.what);
         return false;
     }
 
     if (s.what & deniedFlags) {
-        ATRACE_FORMAT_INSTANT("%s: false [has denied flags 0x%" PRIx64 "]", __func__,
-                              s.what & deniedFlags);
+        SFTRACE_FORMAT_INSTANT("%s: false [has denied flags 0x%" PRIx64 "]", __func__,
+                               s.what & deniedFlags);
         return false;
     }
 
     if (s.what & layer_state_t::ePositionChanged) {
         if (mRequestedTransform.tx() != s.x || mRequestedTransform.ty() != s.y) {
-            ATRACE_FORMAT_INSTANT("%s: false [ePositionChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [ePositionChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eAlphaChanged) {
         if (mDrawingState.color.a != s.color.a) {
-            ATRACE_FORMAT_INSTANT("%s: false [eAlphaChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eAlphaChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eColorTransformChanged) {
         if (mDrawingState.colorTransform != s.colorTransform) {
-            ATRACE_FORMAT_INSTANT("%s: false [eColorTransformChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eColorTransformChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eBackgroundColorChanged) {
         if (mDrawingState.bgColorLayer || s.bgColor.a != 0) {
-            ATRACE_FORMAT_INSTANT("%s: false [eBackgroundColorChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eBackgroundColorChanged changed]", __func__);
             return false;
         }
     }
@@ -3820,92 +3516,92 @@
             mRequestedTransform.dtdy() != s.matrix.dtdy ||
             mRequestedTransform.dtdx() != s.matrix.dtdx ||
             mRequestedTransform.dsdy() != s.matrix.dsdy) {
-            ATRACE_FORMAT_INSTANT("%s: false [eMatrixChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eMatrixChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eCornerRadiusChanged) {
         if (mDrawingState.cornerRadius != s.cornerRadius) {
-            ATRACE_FORMAT_INSTANT("%s: false [eCornerRadiusChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eCornerRadiusChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eBackgroundBlurRadiusChanged) {
         if (mDrawingState.backgroundBlurRadius != static_cast<int>(s.backgroundBlurRadius)) {
-            ATRACE_FORMAT_INSTANT("%s: false [eBackgroundBlurRadiusChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eBackgroundBlurRadiusChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eBufferTransformChanged) {
         if (mDrawingState.bufferTransform != s.bufferTransform) {
-            ATRACE_FORMAT_INSTANT("%s: false [eBufferTransformChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eBufferTransformChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eTransformToDisplayInverseChanged) {
         if (mDrawingState.transformToDisplayInverse != s.transformToDisplayInverse) {
-            ATRACE_FORMAT_INSTANT("%s: false [eTransformToDisplayInverseChanged changed]",
-                                  __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eTransformToDisplayInverseChanged changed]",
+                                   __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eCropChanged) {
         if (mDrawingState.crop != s.crop) {
-            ATRACE_FORMAT_INSTANT("%s: false [eCropChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eCropChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eDataspaceChanged) {
         if (mDrawingState.dataspace != s.dataspace) {
-            ATRACE_FORMAT_INSTANT("%s: false [eDataspaceChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eDataspaceChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eHdrMetadataChanged) {
         if (mDrawingState.hdrMetadata != s.hdrMetadata) {
-            ATRACE_FORMAT_INSTANT("%s: false [eHdrMetadataChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eHdrMetadataChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eSidebandStreamChanged) {
         if (mDrawingState.sidebandStream != s.sidebandStream) {
-            ATRACE_FORMAT_INSTANT("%s: false [eSidebandStreamChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eSidebandStreamChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eColorSpaceAgnosticChanged) {
         if (mDrawingState.colorSpaceAgnostic != s.colorSpaceAgnostic) {
-            ATRACE_FORMAT_INSTANT("%s: false [eColorSpaceAgnosticChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eColorSpaceAgnosticChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eShadowRadiusChanged) {
         if (mDrawingState.shadowRadius != s.shadowRadius) {
-            ATRACE_FORMAT_INSTANT("%s: false [eShadowRadiusChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eShadowRadiusChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eFixedTransformHintChanged) {
         if (mDrawingState.fixedTransformHint != s.fixedTransformHint) {
-            ATRACE_FORMAT_INSTANT("%s: false [eFixedTransformHintChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eFixedTransformHintChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eTrustedOverlayChanged) {
         if (mDrawingState.isTrustedOverlay != (s.trustedOverlay == gui::TrustedOverlay::ENABLED)) {
-            ATRACE_FORMAT_INSTANT("%s: false [eTrustedOverlayChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eTrustedOverlayChanged changed]", __func__);
             return false;
         }
     }
@@ -3914,28 +3610,28 @@
         StretchEffect temp = s.stretchEffect;
         temp.sanitize();
         if (mDrawingState.stretchEffect != temp) {
-            ATRACE_FORMAT_INSTANT("%s: false [eStretchChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eStretchChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eBufferCropChanged) {
         if (mDrawingState.bufferCrop != s.bufferCrop) {
-            ATRACE_FORMAT_INSTANT("%s: false [eBufferCropChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eBufferCropChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eDestinationFrameChanged) {
         if (mDrawingState.destinationFrame != s.destinationFrame) {
-            ATRACE_FORMAT_INSTANT("%s: false [eDestinationFrameChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eDestinationFrameChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eDimmingEnabledChanged) {
         if (mDrawingState.dimmingEnabled != s.dimmingEnabled) {
-            ATRACE_FORMAT_INSTANT("%s: false [eDimmingEnabledChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eDimmingEnabledChanged changed]", __func__);
             return false;
         }
     }
@@ -3943,14 +3639,14 @@
     if (s.what & layer_state_t::eExtendedRangeBrightnessChanged) {
         if (mDrawingState.currentHdrSdrRatio != s.currentHdrSdrRatio ||
             mDrawingState.desiredHdrSdrRatio != s.desiredHdrSdrRatio) {
-            ATRACE_FORMAT_INSTANT("%s: false [eExtendedRangeBrightnessChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eExtendedRangeBrightnessChanged changed]", __func__);
             return false;
         }
     }
 
     if (s.what & layer_state_t::eDesiredHdrHeadroomChanged) {
         if (mDrawingState.desiredHdrSdrRatio != s.desiredHdrSdrRatio) {
-            ATRACE_FORMAT_INSTANT("%s: false [eDesiredHdrHeadroomChanged changed]", __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false [eDesiredHdrHeadroomChanged changed]", __func__);
             return false;
         }
     }
@@ -4053,7 +3749,8 @@
 void Layer::onCompositionPresented(const DisplayDevice* display,
                                    const std::shared_ptr<FenceTime>& glDoneFence,
                                    const std::shared_ptr<FenceTime>& presentFence,
-                                   const CompositorTiming& compositorTiming) {
+                                   const CompositorTiming& compositorTiming,
+                                   gui::GameMode gameMode) {
     // mFrameLatencyNeeded is true when a new frame was latched for the
     // composition.
     if (!mBufferInfo.mFrameLatencyNeeded) return;
@@ -4095,12 +3792,12 @@
     }
 
     if (display) {
-        const Fps refreshRate = display->refreshRateSelector().getActiveMode().fps;
+        const auto activeMode = display->refreshRateSelector().getActiveMode();
+        const Fps refreshRate = activeMode.fps;
         const std::optional<Fps> renderRate =
                 mFlinger->mScheduler->getFrameRateOverride(getOwnerUid());
 
         const auto vote = frameRateToSetFrameRateVotePayload(getFrameRateForLayerTree());
-        const auto gameMode = getGameMode();
 
         if (presentFence->isValid()) {
             mFlinger->mTimeStats->setPresentFence(layerId, mCurrentFrameNumber, presentFence,
@@ -4116,7 +3813,12 @@
                     mFlinger->getHwComposer().getPresentTimestamp(*displayId);
 
             const nsecs_t now = systemTime(CLOCK_MONOTONIC);
-            const nsecs_t vsyncPeriod = display->getVsyncPeriodFromHWC();
+            const nsecs_t vsyncPeriod =
+                    mFlinger->getHwComposer()
+                            .getDisplayVsyncPeriod(*displayId)
+                            .value_opt()
+                            .value_or(activeMode.modePtr->getVsyncRate().getPeriodNsecs());
+
             const nsecs_t actualPresentTime = now - ((now - presentTimestamp) % vsyncPeriod);
 
             mFlinger->mTimeStats->setPresentTime(layerId, mCurrentFrameNumber, actualPresentTime,
@@ -4142,8 +3844,8 @@
 }
 
 bool Layer::latchBufferImpl(bool& recomputeVisibleRegions, nsecs_t latchTime, bool bgColorOnly) {
-    ATRACE_FORMAT_INSTANT("latchBuffer %s - %" PRIu64, getDebugName(),
-                          getDrawingState().frameNumber);
+    SFTRACE_FORMAT_INSTANT("latchBuffer %s - %" PRIu64, getDebugName(),
+                           getDrawingState().frameNumber);
 
     bool refreshRequired = latchSidebandStream(recomputeVisibleRegions);
 
@@ -4154,7 +3856,7 @@
     // If the head buffer's acquire fence hasn't signaled yet, return and
     // try again later
     if (!fenceHasSignaled()) {
-        ATRACE_NAME("!fenceHasSignaled()");
+        SFTRACE_NAME("!fenceHasSignaled()");
         mFlinger->onLayerUpdate();
         return false;
     }
@@ -4384,38 +4086,6 @@
     }
 }
 
-void Layer::updateMetadataSnapshot(const LayerMetadata& parentMetadata) {
-    mSnapshot->layerMetadata = parentMetadata;
-    mSnapshot->layerMetadata.merge(mDrawingState.metadata);
-    for (const sp<Layer>& child : mDrawingChildren) {
-        child->updateMetadataSnapshot(mSnapshot->layerMetadata);
-    }
-}
-
-void Layer::updateRelativeMetadataSnapshot(const LayerMetadata& relativeLayerMetadata,
-                                           std::unordered_set<Layer*>& visited) {
-    if (visited.find(this) != visited.end()) {
-        ALOGW("Cycle containing layer %s detected in z-order relatives", getDebugName());
-        return;
-    }
-    visited.insert(this);
-
-    mSnapshot->relativeLayerMetadata = relativeLayerMetadata;
-
-    if (mDrawingState.zOrderRelatives.empty()) {
-        return;
-    }
-    LayerMetadata childRelativeLayerMetadata = mSnapshot->relativeLayerMetadata;
-    childRelativeLayerMetadata.merge(mSnapshot->layerMetadata);
-    for (wp<Layer> weakRelative : mDrawingState.zOrderRelatives) {
-        sp<Layer> relative = weakRelative.promote();
-        if (!relative) {
-            continue;
-        }
-        relative->updateRelativeMetadataSnapshot(childRelativeLayerMetadata, visited);
-    }
-}
-
 bool Layer::setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                        TrustedPresentationListener const& listener) {
     bool hadTrustedPresentationListener = hasTrustedPresentationListener();
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index b9fcd5c..948c62d 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -312,7 +312,7 @@
     bool setBuffer(std::shared_ptr<renderengine::ExternalTexture>& /* buffer */,
                    const BufferData& /* bufferData */, nsecs_t /* postTime */,
                    nsecs_t /*desiredPresentTime*/, bool /*isAutoTimestamp*/,
-                   const FrameTimelineInfo& /*info*/);
+                   const FrameTimelineInfo& /*info*/, gui::GameMode gameMode);
     void setDesiredPresentTime(nsecs_t /*desiredPresentTime*/, bool /*isAutoTimestamp*/);
     bool setDataspace(ui::Dataspace /*dataspace*/);
     bool setExtendedRangeBrightness(float currentBufferRatio, float desiredRatio);
@@ -322,25 +322,18 @@
     bool setSurfaceDamageRegion(const Region& /*surfaceDamage*/);
     bool setApi(int32_t /*api*/);
     bool setSidebandStream(const sp<NativeHandle>& /*sidebandStream*/,
-                           const FrameTimelineInfo& /* info*/, nsecs_t /* postTime */);
+                           const FrameTimelineInfo& /* info*/, nsecs_t /* postTime */,
+                           gui::GameMode gameMode);
     bool setTransactionCompletedListeners(const std::vector<sp<CallbackHandle>>& /*handles*/,
                                           bool willPresent);
     virtual bool setBackgroundColor(const half3& color, float alpha, ui::Dataspace dataspace)
             REQUIRES(mFlinger->mStateLock);
     virtual bool setColorSpaceAgnostic(const bool agnostic);
     virtual bool setDimmingEnabled(const bool dimmingEnabled);
-    virtual bool setDefaultFrameRateCompatibility(FrameRateCompatibility compatibility);
-    virtual bool setFrameRateSelectionPriority(int32_t priority);
     virtual bool setFixedTransformHint(ui::Transform::RotationFlags fixedTransformHint);
     void setAutoRefresh(bool /* autoRefresh */);
     bool setDropInputMode(gui::DropInputMode);
 
-    //  If the variable is not set on the layer, it traverses up the tree to inherit the frame
-    //  rate priority from its parent.
-    virtual int32_t getFrameRateSelectionPriority() const;
-    //
-    virtual FrameRateCompatibility getDefaultFrameRateCompatibility() const;
-    //
     ui::Dataspace getDataSpace() const;
 
     virtual bool isFrontBuffered() const;
@@ -439,7 +432,7 @@
     void onCompositionPresented(const DisplayDevice*,
                                 const std::shared_ptr<FenceTime>& /*glDoneFence*/,
                                 const std::shared_ptr<FenceTime>& /*presentFence*/,
-                                const CompositorTiming&);
+                                const CompositorTiming&, gui::GameMode gameMode);
 
     // If a buffer was replaced this frame, release the former buffer
     void releasePendingBuffer(nsecs_t /*dequeueReadyTime*/);
@@ -701,7 +694,6 @@
     inline const State& getDrawingState() const { return mDrawingState; }
     inline State& getDrawingState() { return mDrawingState; }
 
-    void miniDumpLegacy(std::string& result, const DisplayDevice&) const;
     void miniDump(std::string& result, const frontend::LayerSnapshot&, const DisplayDevice&) const;
     void dumpFrameStats(std::string& result) const;
     void dumpOffscreenDebugInfo(std::string& result) const;
@@ -788,15 +780,11 @@
      */
     Rect getCroppedBufferSize(const Layer::State& s) const;
 
-    bool setFrameRate(FrameRate::FrameRateVote);
-    bool setFrameRateCategory(FrameRateCategory, bool smoothSwitchOnly);
-
-    bool setFrameRateSelectionStrategy(FrameRateSelectionStrategy);
-
     virtual void setFrameTimelineInfoForBuffer(const FrameTimelineInfo& /*info*/) {}
-    void setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info, nsecs_t postTime);
+    void setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info, nsecs_t postTime,
+                                                   gui::GameMode gameMode);
     void setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
-                                                       nsecs_t postTime);
+                                                       nsecs_t postTime, gui::GameMode gameMode);
 
     void addSurfaceFrameDroppedForBuffer(std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame,
                                          nsecs_t dropTime);
@@ -805,11 +793,12 @@
             nsecs_t currentLatchTime);
 
     std::shared_ptr<frametimeline::SurfaceFrame> createSurfaceFrameForTransaction(
-            const FrameTimelineInfo& info, nsecs_t postTime);
+            const FrameTimelineInfo& info, nsecs_t postTime, gui::GameMode gameMode);
     std::shared_ptr<frametimeline::SurfaceFrame> createSurfaceFrameForBuffer(
-            const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName);
+            const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName,
+            gui::GameMode gameMode);
     void setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
-                                               std::string debugName);
+                                               std::string debugName, gui::GameMode gameMode);
 
     bool setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                     TrustedPresentationListener const& listener);
@@ -832,13 +821,6 @@
      */
     bool hasInputInfo() const;
 
-    // Sets the gui::GameMode for the tree rooted at this layer. A layer in the tree inherits this
-    // gui::GameMode unless it (or an ancestor) has GAME_MODE_METADATA.
-    void setGameModeForTree(gui::GameMode);
-
-    void setGameMode(gui::GameMode gameMode) { mGameMode = gameMode; }
-    gui::GameMode getGameMode() const { return mGameMode; }
-
     virtual uid_t getOwnerUid() const { return mOwnerUid; }
 
     pid_t getOwnerPid() { return mOwnerPid; }
@@ -899,9 +881,6 @@
     // CompositionEngine to create a single path for composing layers.
     void updateSnapshot(bool updateGeometry);
     void updateChildrenSnapshots(bool updateGeometry);
-    void updateMetadataSnapshot(const LayerMetadata& parentMetadata);
-    void updateRelativeMetadataSnapshot(const LayerMetadata& relativeLayerMetadata,
-                                        std::unordered_set<Layer*>& visited);
     sp<Layer> getClonedFrom() const {
         return mClonedFrom != nullptr ? mClonedFrom.promote() : nullptr;
     }
@@ -912,19 +891,9 @@
     void callReleaseBufferCallback(const sp<ITransactionCompletedListener>& listener,
                                    const sp<GraphicBuffer>& buffer, uint64_t framenumber,
                                    const sp<Fence>& releaseFence);
-    bool setFrameRateForLayerTreeLegacy(FrameRate, nsecs_t now);
     bool setFrameRateForLayerTree(FrameRate, const scheduler::LayerProps&, nsecs_t now);
     void recordLayerHistoryBufferUpdate(const scheduler::LayerProps&, nsecs_t now);
     void recordLayerHistoryAnimationTx(const scheduler::LayerProps&, nsecs_t now);
-    auto getLayerProps() const {
-        return scheduler::LayerProps{.visible = isVisible(),
-                                     .bounds = getBounds(),
-                                     .transform = getTransform(),
-                                     .setFrameRateVote = getFrameRateForLayerTree(),
-                                     .frameRateSelectionPriority = getFrameRateSelectionPriority(),
-                                     .isSmallDirty = mSmallDirty,
-                                     .isFrontBuffered = isFrontBuffered()};
-    };
     bool hasBuffer() const { return mBufferInfo.mBuffer != nullptr; }
     void setTransformHint(std::optional<ui::Transform::RotationFlags> transformHint) {
         mTransformHint = transformHint;
@@ -980,7 +949,6 @@
     void preparePerFrameBufferCompositionState();
     void preparePerFrameEffectsCompositionState();
     void gatherBufferInfo();
-    void onSurfaceFrameCreated(const std::shared_ptr<frametimeline::SurfaceFrame>&);
 
     bool isClonedFromAlive() { return getClonedFrom() != nullptr; }
 
@@ -1136,7 +1104,6 @@
     LayerVector makeChildrenTraversalList(LayerVector::StateSet,
                                           const std::vector<Layer*>& layersInTree);
 
-    void updateTreeHasFrameRateVote();
     bool propagateFrameRateForLayerTree(FrameRate parentFrameRate, bool overrideChildren,
                                         bool* transactionNeeded);
     void setZOrderRelativeOf(const wp<Layer>& relativeOf);
@@ -1195,11 +1162,6 @@
 
     bool hasSomethingToDraw() const { return hasEffect() || hasBufferOrSidebandStream(); }
 
-    // Fills the provided vector with the currently available JankData and removes the processed
-    // JankData from the pending list.
-    void transferAvailableJankData(const std::deque<sp<CallbackHandle>>& handles,
-                                   std::vector<JankData>& jankData);
-
     bool shouldOverrideChildrenFrameRate() const {
         return getDrawingState().frameRateSelectionStrategy ==
                 FrameRateSelectionStrategy::OverrideChildren;
@@ -1268,14 +1230,10 @@
     // time.
     std::variant<nsecs_t, sp<Fence>> mCallbackHandleAcquireTimeOrFence = -1;
 
-    std::deque<std::shared_ptr<android::frametimeline::SurfaceFrame>> mPendingJankClassifications;
-    // An upper bound on the number of SurfaceFrames in the pending classifications deque.
-    static constexpr int kPendingClassificationMaxSurfaceFrames = 50;
-
     const std::string mBlastTransactionName{"BufferTX - " + mName};
     // This integer is incremented everytime a buffer arrives at the server for this layer,
     // and decremented when a buffer is dropped or latched. When changed the integer is exported
-    // to systrace with ATRACE_INT and mBlastTransactionName. This way when debugging perf it is
+    // to systrace with SFTRACE_INT and mBlastTransactionName. This way when debugging perf it is
     // possible to see when a buffer arrived at the server, and in which frame it latched.
     //
     // You can understand the trace this way:
diff --git a/services/surfaceflinger/LayerFE.cpp b/services/surfaceflinger/LayerFE.cpp
index c2251a8..b05f0ee 100644
--- a/services/surfaceflinger/LayerFE.cpp
+++ b/services/surfaceflinger/LayerFE.cpp
@@ -19,11 +19,10 @@
 #define LOG_TAG "SurfaceFlinger"
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
+#include <common/trace.h>
 #include <gui/GLConsumer.h>
-#include <gui/TraceUtils.h>
 #include <math/vec3.h>
 #include <system/window.h>
-#include <utils/Log.h>
 
 #include "LayerFE.h"
 #include "SurfaceFlinger.h"
@@ -122,7 +121,7 @@
 
 std::optional<compositionengine::LayerFE::LayerSettings> LayerFE::prepareClientCompositionInternal(
         compositionengine::LayerFE::ClientCompositionTargetSettings& targetSettings) const {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     compositionengine::LayerFE::LayerSettings layerSettings;
     layerSettings.geometry.boundaries =
             reduce(mSnapshot->geomLayerBounds, mSnapshot->transparentRegionHint);
@@ -174,6 +173,7 @@
             break;
     }
     layerSettings.stretchEffect = mSnapshot->stretchEffect;
+    layerSettings.edgeExtensionEffect = mSnapshot->edgeExtensionEffect;
     // Record the name of the layer for debugging further down the stack.
     layerSettings.name = mSnapshot->name;
 
@@ -214,7 +214,7 @@
 void LayerFE::prepareBufferStateClientComposition(
         compositionengine::LayerFE::LayerSettings& layerSettings,
         compositionengine::LayerFE::ClientCompositionTargetSettings& targetSettings) const {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (CC_UNLIKELY(!mSnapshot->externalTexture)) {
         // If there is no buffer for the layer or we have sidebandstream where there is no
         // activeBuffer, then we need to return LayerSettings.
diff --git a/services/surfaceflinger/LayerProtoHelper.cpp b/services/surfaceflinger/LayerProtoHelper.cpp
index 496033b..0d2987c 100644
--- a/services/surfaceflinger/LayerProtoHelper.cpp
+++ b/services/surfaceflinger/LayerProtoHelper.cpp
@@ -266,6 +266,7 @@
 perfetto::protos::LayersProto LayerProtoFromSnapshotGenerator::generate(
         const frontend::LayerHierarchy& root) {
     mLayersProto.clear_layers();
+    mVisitedLayers.clear();
     std::unordered_set<uint64_t> stackIdsToSkip;
     if ((mTraceFlags & LayerTracing::TRACE_VIRTUAL_DISPLAYS) == 0) {
         for (const auto& [layerStack, displayInfo] : mDisplayInfos) {
@@ -326,6 +327,11 @@
     perfetto::protos::LayerProto* layerProto = mLayersProto.add_layers();
     const frontend::RequestedLayerState& layer = *root.getLayer();
     frontend::LayerSnapshot* snapshot = getSnapshot(path, layer);
+    if (mVisitedLayers.find(snapshot->uniqueSequence) != mVisitedLayers.end()) {
+        TransactionTraceWriter::getInstance().invoke("DuplicateLayer", /* overwrite= */ false);
+        return;
+    }
+    mVisitedLayers.insert(snapshot->uniqueSequence);
     LayerProtoHelper::writeSnapshotToProto(layerProto, layer, *snapshot, mTraceFlags);
 
     for (const auto& [child, variant] : root.mChildren) {
diff --git a/services/surfaceflinger/LayerProtoHelper.h b/services/surfaceflinger/LayerProtoHelper.h
index 20c2260..d672012 100644
--- a/services/surfaceflinger/LayerProtoHelper.h
+++ b/services/surfaceflinger/LayerProtoHelper.h
@@ -101,6 +101,8 @@
     const frontend::DisplayInfos& mDisplayInfos;
     uint32_t mTraceFlags;
     perfetto::protos::LayersProto mLayersProto;
+    std::unordered_set<uint32_t> mVisitedLayers;
+
     // winscope expects all the layers, so provide a snapshot even if it not currently drawing
     std::unordered_map<frontend::LayerHierarchy::TraversalPath, frontend::LayerSnapshot,
                        frontend::LayerHierarchy::TraversalPathHash>
diff --git a/services/surfaceflinger/LocklessQueue.h b/services/surfaceflinger/LocklessQueue.h
index 6b63360..4d0b261 100644
--- a/services/surfaceflinger/LocklessQueue.h
+++ b/services/surfaceflinger/LocklessQueue.h
@@ -15,11 +15,11 @@
  */
 
 #pragma once
+
 #include <atomic>
 #include <optional>
 
-template <typename T>
-// Single consumer multi producer stack. We can understand the two operations independently to see
+// Single consumer multi producer queue. We can understand the two operations independently to see
 // why they are without race condition.
 //
 // push is responsible for maintaining a linked list stored in mPush, and called from multiple
@@ -36,33 +36,27 @@
 // then store the list and pop one element.
 //
 // If we already had something in the pop list we just pop directly.
+template <typename T>
 class LocklessQueue {
 public:
-    class Entry {
-    public:
-        T mValue;
-        std::atomic<Entry*> mNext;
-        Entry(T value) : mValue(value) {}
-    };
-    std::atomic<Entry*> mPush = nullptr;
-    std::atomic<Entry*> mPop = nullptr;
     bool isEmpty() { return (mPush.load() == nullptr) && (mPop.load() == nullptr); }
 
     void push(T value) {
-        Entry* entry = new Entry(value);
+        Entry* entry = new Entry(std::move(value));
         Entry* previousHead = mPush.load(/*std::memory_order_relaxed*/);
         do {
             entry->mNext = previousHead;
         } while (!mPush.compare_exchange_weak(previousHead, entry)); /*std::memory_order_release*/
     }
+
     std::optional<T> pop() {
         Entry* popped = mPop.load(/*std::memory_order_acquire*/);
         if (popped) {
             // Single consumer so this is fine
             mPop.store(popped->mNext /* , std::memory_order_release */);
-            auto value = popped->mValue;
+            auto value = std::move(popped->mValue);
             delete popped;
-            return std::move(value);
+            return value;
         } else {
             Entry* grabbedList = mPush.exchange(nullptr /* , std::memory_order_acquire */);
             if (!grabbedList) return std::nullopt;
@@ -74,9 +68,19 @@
                 grabbedList = next;
             }
             mPop.store(popped /* , std::memory_order_release */);
-            auto value = grabbedList->mValue;
+            auto value = std::move(grabbedList->mValue);
             delete grabbedList;
-            return std::move(value);
+            return value;
         }
     }
+
+private:
+    class Entry {
+    public:
+        T mValue;
+        std::atomic<Entry*> mNext;
+        Entry(T value) : mValue(value) {}
+    };
+    std::atomic<Entry*> mPush = nullptr;
+    std::atomic<Entry*> mPop = nullptr;
 };
diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp
index c77bcfa..7712d38 100644
--- a/services/surfaceflinger/RegionSamplingThread.cpp
+++ b/services/surfaceflinger/RegionSamplingThread.cpp
@@ -26,6 +26,7 @@
 
 #include "RegionSamplingThread.h"
 
+#include <common/trace.h>
 #include <compositionengine/Display.h>
 #include <compositionengine/impl/OutputCompositionState.h>
 #include <cutils/properties.h>
@@ -34,7 +35,6 @@
 #include <gui/SyncScreenCaptureListener.h>
 #include <renderengine/impl/ExternalTexture.h>
 #include <ui/DisplayStatInfo.h>
-#include <utils/Trace.h>
 
 #include <string>
 
@@ -148,7 +148,7 @@
     std::lock_guard lock(mThreadControlMutex);
 
     if (mSampleRequestTime.has_value()) {
-        ATRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::waitForSamplePhase));
+        SFTRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::waitForSamplePhase));
         mSampleRequestTime.reset();
         mFlinger.scheduleSample();
     }
@@ -166,7 +166,7 @@
     if (mLastSampleTime + mTunables.mSamplingPeriod > now) {
         // content changed, but we sampled not too long ago, so we need to sample some time in the
         // future.
-        ATRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::idleTimerWaiting));
+        SFTRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::idleTimerWaiting));
         mSampleRequestTime = now;
         return;
     }
@@ -175,13 +175,13 @@
         // until the next vsync deadline, defer this sampling work
         // to a later frame, when hopefully there will be more time.
         if (samplingDeadline.has_value() && now + mTunables.mSamplingDuration > *samplingDeadline) {
-            ATRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::waitForQuietFrame));
+            SFTRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::waitForQuietFrame));
             mSampleRequestTime = mSampleRequestTime.value_or(now);
             return;
         }
     }
 
-    ATRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::sample));
+    SFTRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::sample));
 
     mSampleRequestTime.reset();
     mLastSampleTime = now;
@@ -247,7 +247,7 @@
 }
 
 void RegionSamplingThread::captureSample() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard lock(mSamplingMutex);
 
     if (mDescriptors.empty()) {
@@ -356,9 +356,8 @@
     if (FlagManager::getInstance().single_hop_screenshot() &&
         FlagManager::getInstance().ce_fence_promise() && mFlinger.mRenderEngine->isThreaded()) {
         std::vector<sp<LayerFE>> layerFEs;
-        auto displayState =
-                mFlinger.getDisplayAndLayerSnapshotsFromMainThread(renderAreaBuilder,
-                                                                   getLayerSnapshotsFn, layerFEs);
+        auto displayState = mFlinger.getSnapshotsFromMainThread(renderAreaBuilder,
+                                                                getLayerSnapshotsFn, layerFEs);
         fenceResult =
                 mFlinger.captureScreenshot(renderAreaBuilder, buffer, kRegionSampling, kGrayscale,
                                            kIsProtected, nullptr, displayState, layerFEs)
@@ -394,7 +393,7 @@
     }
 
     mCachedBuffer = buffer;
-    ATRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::noWorkNeeded));
+    SFTRACE_INT(lumaSamplingStepTag, static_cast<int>(samplingStep::noWorkNeeded));
 }
 
 // NO_THREAD_SAFETY_ANALYSIS is because std::unique_lock presently lacks thread safety annotations.
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index 6b65449..d31fcea 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -33,7 +33,7 @@
 #include <android-base/stringprintf.h>
 
 #include <binder/IPCThreadState.h>
-
+#include <common/trace.h>
 #include <cutils/compiler.h>
 #include <cutils/sched_policy.h>
 
@@ -41,7 +41,6 @@
 #include <gui/SchedulingPolicy.h>
 
 #include <utils/Errors.h>
-#include <utils/Trace.h>
 
 #include <common/FlagManager.h>
 #include <scheduler/VsyncConfig.h>
@@ -226,14 +225,14 @@
 }
 
 binder::Status EventThreadConnection::requestNextVsync() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     mEventThread->requestNextVsync(sp<EventThreadConnection>::fromExisting(this));
     return binder::Status::ok();
 }
 
 binder::Status EventThreadConnection::getLatestVsyncEventData(
         ParcelableVsyncEventData* outVsyncEventData) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     outVsyncEventData->vsync =
             mEventThread->getLatestVsyncEventData(sp<EventThreadConnection>::fromExisting(this),
                                                   systemTime());
diff --git a/services/surfaceflinger/Scheduler/ISchedulerCallback.h b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
index f430526..2b9e88c 100644
--- a/services/surfaceflinger/Scheduler/ISchedulerCallback.h
+++ b/services/surfaceflinger/Scheduler/ISchedulerCallback.h
@@ -28,7 +28,6 @@
     virtual void requestHardwareVsync(PhysicalDisplayId, bool enabled) = 0;
     virtual void requestDisplayModes(std::vector<display::DisplayModeRequest>) = 0;
     virtual void kernelTimerChanged(bool expired) = 0;
-    virtual void triggerOnFrameRateOverridesChanged() = 0;
     virtual void onChoreographerAttached() = 0;
     virtual void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>,
                                              Fps renderRate) = 0;
diff --git a/services/surfaceflinger/Scheduler/LayerHistory.cpp b/services/surfaceflinger/Scheduler/LayerHistory.cpp
index a819b79..64b85c0 100644
--- a/services/surfaceflinger/Scheduler/LayerHistory.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistory.cpp
@@ -21,8 +21,8 @@
 #include "LayerHistory.h"
 
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <cutils/properties.h>
-#include <gui/TraceUtils.h>
 #include <utils/Log.h>
 #include <utils/Timers.h>
 
@@ -72,7 +72,7 @@
 
 void trace(const LayerInfo& info, LayerHistory::LayerVoteType type, int fps) {
     const auto traceType = [&](LayerHistory::LayerVoteType checkedType, int value) {
-        ATRACE_INT(info.getTraceTag(checkedType), type == checkedType ? value : 0);
+        SFTRACE_INT(info.getTraceTag(checkedType), type == checkedType ? value : 0);
     };
 
     traceType(LayerHistory::LayerVoteType::NoVote, 1);
@@ -109,12 +109,12 @@
 
 LayerHistory::~LayerHistory() = default;
 
-void LayerHistory::registerLayer(Layer* layer, bool contentDetectionEnabled) {
+void LayerHistory::registerLayer(Layer* layer, bool contentDetectionEnabled,
+                                 FrameRateCompatibility frameRateCompatibility) {
     std::lock_guard lock(mLock);
     LOG_ALWAYS_FATAL_IF(findLayer(layer->getSequence()).first != LayerStatus::NotFound,
                         "%s already registered", layer->getName().c_str());
-    LayerVoteType type =
-            getVoteType(layer->getDefaultFrameRateCompatibility(), contentDetectionEnabled);
+    LayerVoteType type = getVoteType(frameRateCompatibility, contentDetectionEnabled);
     auto info = std::make_unique<LayerInfo>(layer->getName(), layer->getOwnerUid(), type);
 
     // The layer can be placed on either map, it is assumed that partitionLayers() will be called
@@ -190,7 +190,7 @@
 }
 
 auto LayerHistory::summarize(const RefreshRateSelector& selector, nsecs_t now) -> Summary {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     Summary summary;
 
     std::lock_guard lock(mLock);
@@ -204,7 +204,7 @@
         ALOGV("%s has priority: %d %s focused", info->getName().c_str(), frameRateSelectionPriority,
               layerFocused ? "" : "not");
 
-        ATRACE_FORMAT("%s", info->getName().c_str());
+        SFTRACE_FORMAT("%s", info->getName().c_str());
         const auto votes = info->getRefreshRateVote(selector, now);
         for (LayerInfo::LayerVote vote : votes) {
             if (vote.isNoVote()) {
@@ -222,8 +222,8 @@
             const std::string categoryString = vote.category == FrameRateCategory::Default
                     ? ""
                     : base::StringPrintf("category=%s", ftl::enum_string(vote.category).c_str());
-            ATRACE_FORMAT_INSTANT("%s %s %s (%.2f)", ftl::enum_string(vote.type).c_str(),
-                                  to_string(vote.fps).c_str(), categoryString.c_str(), weight);
+            SFTRACE_FORMAT_INSTANT("%s %s %s (%.2f)", ftl::enum_string(vote.type).c_str(),
+                                   to_string(vote.fps).c_str(), categoryString.c_str(), weight);
             summary.push_back({info->getName(), info->getOwnerUid(), vote.type, vote.fps,
                                vote.seamlessness, vote.category, vote.categorySmoothSwitchOnly,
                                weight, layerFocused});
@@ -238,7 +238,7 @@
 }
 
 void LayerHistory::partitionLayers(nsecs_t now, bool isVrrDevice) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const nsecs_t threshold = getActiveLayerThreshold(now);
 
     // iterate over inactive map
@@ -310,7 +310,7 @@
 
                 if (gameModeFrameRateOverride.isValid()) {
                     info->setLayerVote({gameFrameRateOverrideVoteType, gameModeFrameRateOverride});
-                    ATRACE_FORMAT_INSTANT("GameModeFrameRateOverride");
+                    SFTRACE_FORMAT_INSTANT("GameModeFrameRateOverride");
                     if (CC_UNLIKELY(mTraceEnabled)) {
                         trace(*info, gameFrameRateOverrideVoteType,
                               gameModeFrameRateOverride.getIntValue());
@@ -326,19 +326,19 @@
                 } else if (gameDefaultFrameRateOverride.isValid()) {
                     info->setLayerVote(
                             {gameFrameRateOverrideVoteType, gameDefaultFrameRateOverride});
-                    ATRACE_FORMAT_INSTANT("GameDefaultFrameRateOverride");
+                    SFTRACE_FORMAT_INSTANT("GameDefaultFrameRateOverride");
                     if (CC_UNLIKELY(mTraceEnabled)) {
                         trace(*info, gameFrameRateOverrideVoteType,
                               gameDefaultFrameRateOverride.getIntValue());
                     }
                 } else {
                     if (frameRate.isValid() && !frameRate.isVoteValidForMrr(isVrrDevice)) {
-                        ATRACE_FORMAT_INSTANT("Reset layer to ignore explicit vote on MRR %s: %s "
-                                              "%s %s",
-                                              info->getName().c_str(),
-                                              ftl::enum_string(frameRate.vote.type).c_str(),
-                                              to_string(frameRate.vote.rate).c_str(),
-                                              ftl::enum_string(frameRate.category).c_str());
+                        SFTRACE_FORMAT_INSTANT("Reset layer to ignore explicit vote on MRR %s: %s "
+                                               "%s %s",
+                                               info->getName().c_str(),
+                                               ftl::enum_string(frameRate.vote.type).c_str(),
+                                               to_string(frameRate.vote.rate).c_str(),
+                                               ftl::enum_string(frameRate.category).c_str());
                     }
                     info->resetLayerVote();
                 }
@@ -349,12 +349,12 @@
                                         frameRate.vote.seamlessness, frameRate.category});
                 } else {
                     if (!frameRate.isVoteValidForMrr(isVrrDevice)) {
-                        ATRACE_FORMAT_INSTANT("Reset layer to ignore explicit vote on MRR %s: %s "
-                                              "%s %s",
-                                              info->getName().c_str(),
-                                              ftl::enum_string(frameRate.vote.type).c_str(),
-                                              to_string(frameRate.vote.rate).c_str(),
-                                              ftl::enum_string(frameRate.category).c_str());
+                        SFTRACE_FORMAT_INSTANT("Reset layer to ignore explicit vote on MRR %s: %s "
+                                               "%s %s",
+                                               info->getName().c_str(),
+                                               ftl::enum_string(frameRate.vote.type).c_str(),
+                                               to_string(frameRate.vote.rate).c_str(),
+                                               ftl::enum_string(frameRate.category).c_str());
                     }
                     info->resetLayerVote();
                 }
@@ -421,7 +421,7 @@
 bool LayerHistory::isSmallDirtyArea(uint32_t dirtyArea, float threshold) const {
     const float ratio = (float)dirtyArea / mDisplayArea;
     const bool isSmallDirty = ratio <= threshold;
-    ATRACE_FORMAT_INSTANT("small dirty=%s, ratio=%.3f", isSmallDirty ? "true" : "false", ratio);
+    SFTRACE_FORMAT_INSTANT("small dirty=%s, ratio=%.3f", isSmallDirty ? "true" : "false", ratio);
     return isSmallDirty;
 }
 
diff --git a/services/surfaceflinger/Scheduler/LayerHistory.h b/services/surfaceflinger/Scheduler/LayerHistory.h
index c09f148..e3babba 100644
--- a/services/surfaceflinger/Scheduler/LayerHistory.h
+++ b/services/surfaceflinger/Scheduler/LayerHistory.h
@@ -51,7 +51,8 @@
     ~LayerHistory();
 
     // Layers are unregistered when the weak reference expires.
-    void registerLayer(Layer*, bool contentDetectionEnabled);
+    void registerLayer(Layer*, bool contentDetectionEnabled,
+                       FrameRateCompatibility frameRateCompatibility);
 
     // Sets the display size. Client is responsible for synchronization.
     void setDisplayArea(uint32_t displayArea) { mDisplayArea = displayArea; }
diff --git a/services/surfaceflinger/Scheduler/LayerInfo.cpp b/services/surfaceflinger/Scheduler/LayerInfo.cpp
index 632f42a..a1a60e3 100644
--- a/services/surfaceflinger/Scheduler/LayerInfo.cpp
+++ b/services/surfaceflinger/Scheduler/LayerInfo.cpp
@@ -27,10 +27,10 @@
 #include <utility>
 
 #include <android/native_window.h>
+#include <common/trace.h>
 #include <cutils/compiler.h>
 #include <cutils/trace.h>
 #include <ftl/enum.h>
-#include <gui/TraceUtils.h>
 #include <system/window.h>
 
 #undef LOG_TAG
@@ -259,7 +259,7 @@
     }
 
     if (smallDirtyCount > 0) {
-        ATRACE_FORMAT_INSTANT("small dirty = %" PRIu32, smallDirtyCount);
+        SFTRACE_FORMAT_INSTANT("small dirty = %" PRIu32, smallDirtyCount);
     }
 
     if (numDeltas == 0) {
@@ -272,7 +272,7 @@
 
 std::optional<Fps> LayerInfo::calculateRefreshRateIfPossible(const RefreshRateSelector& selector,
                                                              nsecs_t now) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     static constexpr float MARGIN = 1.0f; // 1Hz
     if (!hasEnoughDataForHeuristic()) {
         ALOGV("Not enough data");
@@ -307,7 +307,7 @@
 
 LayerInfo::RefreshRateVotes LayerInfo::getRefreshRateVote(const RefreshRateSelector& selector,
                                                           nsecs_t now) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     LayerInfo::RefreshRateVotes votes;
 
     if (mLayerVote.type != LayerHistory::LayerVoteType::Heuristic) {
@@ -315,8 +315,8 @@
             const auto voteType = mLayerVote.type == LayerHistory::LayerVoteType::NoVote
                     ? LayerHistory::LayerVoteType::NoVote
                     : LayerHistory::LayerVoteType::ExplicitCategory;
-            ATRACE_FORMAT_INSTANT("Vote %s (category=%s)", ftl::enum_string(voteType).c_str(),
-                                  ftl::enum_string(mLayerVote.category).c_str());
+            SFTRACE_FORMAT_INSTANT("Vote %s (category=%s)", ftl::enum_string(voteType).c_str(),
+                                   ftl::enum_string(mLayerVote.category).c_str());
             ALOGV("%s voted %s with category: %s", mName.c_str(),
                   ftl::enum_string(voteType).c_str(),
                   ftl::enum_string(mLayerVote.category).c_str());
@@ -326,7 +326,7 @@
 
         if (mLayerVote.fps.isValid() ||
             mLayerVote.type != LayerHistory::LayerVoteType::ExplicitDefault) {
-            ATRACE_FORMAT_INSTANT("Vote %s", ftl::enum_string(mLayerVote.type).c_str());
+            SFTRACE_FORMAT_INSTANT("Vote %s", ftl::enum_string(mLayerVote.type).c_str());
             ALOGV("%s voted %d", mName.c_str(), static_cast<int>(mLayerVote.type));
             votes.push_back({mLayerVote.type, mLayerVote.fps, mLayerVote.seamlessness,
                              FrameRateCategory::Default, mLayerVote.categorySmoothSwitchOnly});
@@ -336,7 +336,7 @@
     }
 
     if (isAnimating(now)) {
-        ATRACE_FORMAT_INSTANT("animating");
+        SFTRACE_FORMAT_INSTANT("animating");
         ALOGV("%s is animating", mName.c_str());
         mLastRefreshRate.animating = true;
         votes.push_back({LayerHistory::LayerVoteType::Max, Fps()});
@@ -345,7 +345,7 @@
 
     // Vote for max refresh rate whenever we're front-buffered.
     if (FlagManager::getInstance().vrr_config() && isFrontBuffered()) {
-        ATRACE_FORMAT_INSTANT("front buffered");
+        SFTRACE_FORMAT_INSTANT("front buffered");
         ALOGV("%s is front-buffered", mName.c_str());
         votes.push_back({LayerHistory::LayerVoteType::Max, Fps()});
         return votes;
@@ -354,7 +354,7 @@
     const LayerInfo::Frequent frequent = isFrequent(now);
     mIsFrequencyConclusive = frequent.isConclusive;
     if (!frequent.isFrequent) {
-        ATRACE_FORMAT_INSTANT("infrequent");
+        SFTRACE_FORMAT_INSTANT("infrequent");
         ALOGV("%s is infrequent", mName.c_str());
         mLastRefreshRate.infrequent = true;
         mLastSmallDirtyCount = 0;
@@ -365,14 +365,14 @@
     }
 
     if (frequent.clearHistory) {
-        ATRACE_FORMAT_INSTANT("frequent.clearHistory");
+        SFTRACE_FORMAT_INSTANT("frequent.clearHistory");
         ALOGV("%s frequent.clearHistory", mName.c_str());
         clearHistory(now);
     }
 
     // Return no vote if the recent frames are small dirty.
     if (frequent.isSmallDirty && !mLastRefreshRate.reported.isValid()) {
-        ATRACE_FORMAT_INSTANT("NoVote (small dirty)");
+        SFTRACE_FORMAT_INSTANT("NoVote (small dirty)");
         ALOGV("%s is small dirty", mName.c_str());
         votes.push_back({LayerHistory::LayerVoteType::NoVote, Fps()});
         return votes;
@@ -380,13 +380,13 @@
 
     auto refreshRate = calculateRefreshRateIfPossible(selector, now);
     if (refreshRate.has_value()) {
-        ATRACE_FORMAT_INSTANT("calculated (%s)", to_string(*refreshRate).c_str());
+        SFTRACE_FORMAT_INSTANT("calculated (%s)", to_string(*refreshRate).c_str());
         ALOGV("%s calculated refresh rate: %s", mName.c_str(), to_string(*refreshRate).c_str());
         votes.push_back({LayerHistory::LayerVoteType::Heuristic, refreshRate.value()});
         return votes;
     }
 
-    ATRACE_FORMAT_INSTANT("Max (can't resolve refresh rate)");
+    SFTRACE_FORMAT_INSTANT("Max (can't resolve refresh rate)");
     ALOGV("%s Max (can't resolve refresh rate)", mName.c_str());
     votes.push_back({LayerHistory::LayerVoteType::Max, Fps()});
     return votes;
@@ -452,7 +452,7 @@
             mHeuristicTraceTagData = makeHeuristicTraceTagData();
         }
 
-        ATRACE_INT(mHeuristicTraceTagData->average.c_str(), refreshRate.getIntValue());
+        SFTRACE_INT(mHeuristicTraceTagData->average.c_str(), refreshRate.getIntValue());
     }
 
     return selectRefreshRate(selector);
@@ -486,9 +486,9 @@
             mHeuristicTraceTagData = makeHeuristicTraceTagData();
         }
 
-        ATRACE_INT(mHeuristicTraceTagData->max.c_str(), max->refreshRate.getIntValue());
-        ATRACE_INT(mHeuristicTraceTagData->min.c_str(), min->refreshRate.getIntValue());
-        ATRACE_INT(mHeuristicTraceTagData->consistent.c_str(), consistent);
+        SFTRACE_INT(mHeuristicTraceTagData->max.c_str(), max->refreshRate.getIntValue());
+        SFTRACE_INT(mHeuristicTraceTagData->min.c_str(), min->refreshRate.getIntValue());
+        SFTRACE_INT(mHeuristicTraceTagData->consistent.c_str(), consistent);
     }
 
     return consistent ? maxClosestRate : Fps();
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index ff88d71..2e1f938 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -57,7 +57,7 @@
         mHandler(std::move(handler)) {}
 
 void MessageQueue::vsyncCallback(nsecs_t vsyncTime, nsecs_t targetWakeupTime, nsecs_t readyTime) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     // Trace VSYNC-sf
     mVsync.value = (mVsync.value + 1) % 2;
 
@@ -136,7 +136,7 @@
 }
 
 void MessageQueue::setDuration(std::chrono::nanoseconds workDuration) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard lock(mVsync.mutex);
     mVsync.workDuration = workDuration;
     mVsync.scheduledFrameTimeOpt =
@@ -188,12 +188,13 @@
     postMessage(sp<ConfigureHandler>::make(mCompositor));
 }
 
-void MessageQueue::scheduleFrame() {
-    ATRACE_CALL();
+void MessageQueue::scheduleFrame(Duration workDurationSlack) {
+    SFTRACE_CALL();
 
     std::lock_guard lock(mVsync.mutex);
+    const auto workDuration = Duration(mVsync.workDuration.get() - workDurationSlack);
     mVsync.scheduledFrameTimeOpt =
-            mVsync.registration->schedule({.workDuration = mVsync.workDuration.get().count(),
+            mVsync.registration->schedule({.workDuration = workDuration.ns(),
                                            .readyDuration = 0,
                                            .lastVsync = mVsync.lastCallbackTime.ns()});
 }
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.h b/services/surfaceflinger/Scheduler/MessageQueue.h
index c5fc371..ba1efbe 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.h
+++ b/services/surfaceflinger/Scheduler/MessageQueue.h
@@ -74,7 +74,7 @@
     virtual void postMessage(sp<MessageHandler>&&) = 0;
     virtual void postMessageDelayed(sp<MessageHandler>&&, nsecs_t uptimeDelay) = 0;
     virtual void scheduleConfigure() = 0;
-    virtual void scheduleFrame() = 0;
+    virtual void scheduleFrame(Duration workDurationSlack = Duration::fromNs(0)) = 0;
 
     virtual std::optional<scheduler::ScheduleResult> getScheduledFrameResult() const = 0;
 };
@@ -149,7 +149,7 @@
     void postMessageDelayed(sp<MessageHandler>&&, nsecs_t uptimeDelay) override;
 
     void scheduleConfigure() override;
-    void scheduleFrame() override;
+    void scheduleFrame(Duration workDurationSlack = Duration::fromNs(0)) override;
 
     std::optional<scheduler::ScheduleResult> getScheduledFrameResult() const override;
 };
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index dd86e4f..9f6eab2 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
@@ -28,13 +28,12 @@
 
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <ftl/enum.h>
 #include <ftl/fake_guard.h>
 #include <ftl/match.h>
 #include <ftl/unit.h>
-#include <gui/TraceUtils.h>
 #include <scheduler/FrameRateMode.h>
-#include <utils/Trace.h>
 
 #include "RefreshRateSelector.h"
 
@@ -494,7 +493,7 @@
                                                     GlobalSignals signals, Fps pacesetterFps) const
         -> RankedFrameRates {
     using namespace fps_approx_ops;
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("%s: %zu layers", __func__, layers.size());
 
     const auto& activeMode = *getActiveModeLocked().modePtr;
@@ -508,8 +507,8 @@
                                             });
 
         if (!ranking.empty()) {
-            ATRACE_FORMAT_INSTANT("%s (Follower display)",
-                                  to_string(ranking.front().frameRateMode.fps).c_str());
+            SFTRACE_FORMAT_INSTANT("%s (Follower display)",
+                                   to_string(ranking.front().frameRateMode.fps).c_str());
 
             return {ranking, kNoSignals, pacesetterFps};
         }
@@ -521,8 +520,8 @@
     if (signals.powerOnImminent) {
         ALOGV("Power On Imminent");
         const auto ranking = rankFrameRates(activeMode.getGroup(), RefreshRateOrder::Descending);
-        ATRACE_FORMAT_INSTANT("%s (Power On Imminent)",
-                              to_string(ranking.front().frameRateMode.fps).c_str());
+        SFTRACE_FORMAT_INSTANT("%s (Power On Imminent)",
+                               to_string(ranking.front().frameRateMode.fps).c_str());
         return {ranking, GlobalSignals{.powerOnImminent = true}};
     }
 
@@ -608,8 +607,8 @@
     if (signals.touch && !hasExplicitVoteLayers) {
         ALOGV("Touch Boost");
         const auto ranking = rankFrameRates(anchorGroup, RefreshRateOrder::Descending);
-        ATRACE_FORMAT_INSTANT("%s (Touch Boost)",
-                              to_string(ranking.front().frameRateMode.fps).c_str());
+        SFTRACE_FORMAT_INSTANT("%s (Touch Boost)",
+                               to_string(ranking.front().frameRateMode.fps).c_str());
         return {ranking, GlobalSignals{.touch = true}};
     }
 
@@ -620,26 +619,27 @@
         !(policy->primaryRangeIsSingleRate() && hasExplicitVoteLayers)) {
         ALOGV("Idle");
         const auto ranking = rankFrameRates(activeMode.getGroup(), RefreshRateOrder::Ascending);
-        ATRACE_FORMAT_INSTANT("%s (Idle)", to_string(ranking.front().frameRateMode.fps).c_str());
+        SFTRACE_FORMAT_INSTANT("%s (Idle)", to_string(ranking.front().frameRateMode.fps).c_str());
         return {ranking, GlobalSignals{.idle = true}};
     }
 
     if (layers.empty() || noVoteLayers == layers.size()) {
         ALOGV("No layers with votes");
         const auto ranking = rankFrameRates(anchorGroup, RefreshRateOrder::Descending);
-        ATRACE_FORMAT_INSTANT("%s (No layers with votes)",
-                              to_string(ranking.front().frameRateMode.fps).c_str());
+        SFTRACE_FORMAT_INSTANT("%s (No layers with votes)",
+                               to_string(ranking.front().frameRateMode.fps).c_str());
         return {ranking, kNoSignals};
     }
 
     // If all layers are category NoPreference, use the current config.
     if (noPreferenceLayers + noVoteLayers == layers.size()) {
         ALOGV("All layers NoPreference");
-        const auto ascendingWithPreferred =
-                rankFrameRates(anchorGroup, RefreshRateOrder::Ascending, activeMode.getId());
-        ATRACE_FORMAT_INSTANT("%s (All layers NoPreference)",
-                              to_string(ascendingWithPreferred.front().frameRateMode.fps).c_str());
-        return {ascendingWithPreferred, kNoSignals};
+        constexpr float kScore = std::numeric_limits<float>::max();
+        FrameRateRanking currentMode;
+        currentMode.emplace_back(ScoredFrameRate{getActiveModeLocked(), kScore});
+        SFTRACE_FORMAT_INSTANT("%s (All layers NoPreference)",
+                              to_string(currentMode.front().frameRateMode.fps).c_str());
+        return {currentMode, kNoSignals};
     }
 
     const bool smoothSwitchOnly = categorySmoothSwitchOnlyLayers > 0;
@@ -653,8 +653,8 @@
                                                 return !smoothSwitchOnly ||
                                                         mode.modePtr->getId() == activeModeId;
                                             });
-        ATRACE_FORMAT_INSTANT("%s (All layers Min)",
-                              to_string(ranking.front().frameRateMode.fps).c_str());
+        SFTRACE_FORMAT_INSTANT("%s (All layers Min)",
+                               to_string(ranking.front().frameRateMode.fps).c_str());
         return {ranking, kNoSignals};
     }
 
@@ -847,13 +847,13 @@
         if (noLayerScore) {
             ALOGV("Layers not scored");
             const auto descending = rankFrameRates(anchorGroup, RefreshRateOrder::Descending);
-            ATRACE_FORMAT_INSTANT("%s (Layers not scored)",
-                                  to_string(descending.front().frameRateMode.fps).c_str());
+            SFTRACE_FORMAT_INSTANT("%s (Layers not scored)",
+                                   to_string(descending.front().frameRateMode.fps).c_str());
             return {descending, kNoSignals};
         } else {
             ALOGV("primaryRangeIsSingleRate");
-            ATRACE_FORMAT_INSTANT("%s (primaryRangeIsSingleRate)",
-                                  to_string(ranking.front().frameRateMode.fps).c_str());
+            SFTRACE_FORMAT_INSTANT("%s (primaryRangeIsSingleRate)",
+                                   to_string(ranking.front().frameRateMode.fps).c_str());
             return {ranking, kNoSignals};
         }
     }
@@ -889,8 +889,8 @@
 
         if (scores.front().frameRateMode.fps < touchRefreshRates.front().frameRateMode.fps) {
             ALOGV("Touch Boost");
-            ATRACE_FORMAT_INSTANT("%s (Touch Boost [late])",
-                                  to_string(touchRefreshRates.front().frameRateMode.fps).c_str());
+            SFTRACE_FORMAT_INSTANT("%s (Touch Boost [late])",
+                                   to_string(touchRefreshRates.front().frameRateMode.fps).c_str());
             return {touchRefreshRates, GlobalSignals{.touch = true}};
         }
     }
@@ -901,13 +901,13 @@
         ALOGV("preferredDisplayMode");
         const auto ascendingWithPreferred =
                 rankFrameRates(anchorGroup, RefreshRateOrder::Ascending, activeMode.getId());
-        ATRACE_FORMAT_INSTANT("%s (preferredDisplayMode)",
-                              to_string(ascendingWithPreferred.front().frameRateMode.fps).c_str());
+        SFTRACE_FORMAT_INSTANT("%s (preferredDisplayMode)",
+                               to_string(ascendingWithPreferred.front().frameRateMode.fps).c_str());
         return {ascendingWithPreferred, kNoSignals};
     }
 
     ALOGV("%s (scored)", to_string(ranking.front().frameRateMode.fps).c_str());
-    ATRACE_FORMAT_INSTANT("%s (scored)", to_string(ranking.front().frameRateMode.fps).c_str());
+    SFTRACE_FORMAT_INSTANT("%s (scored)", to_string(ranking.front().frameRateMode.fps).c_str());
     return {ranking, kNoSignals};
 }
 
@@ -949,7 +949,7 @@
                                                 Fps displayRefreshRate,
                                                 GlobalSignals globalSignals) const
         -> UidToFrameRateOverride {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (mConfig.enableFrameRateOverride == Config::FrameRateOverride::Disabled) {
         return {};
     }
@@ -1064,12 +1064,12 @@
                                       return lhs < rhs && !ScoredFrameRate::scoresEqual(lhs, rhs);
                                   });
         ALOGV("%s: overriding to %s for uid=%d", __func__, to_string(overrideFps).c_str(), uid);
-        ATRACE_FORMAT_INSTANT("%s: overriding to %s for uid=%d", __func__,
-                              to_string(overrideFps).c_str(), uid);
-        if (ATRACE_ENABLED() && FlagManager::getInstance().trace_frame_rate_override()) {
+        SFTRACE_FORMAT_INSTANT("%s: overriding to %s for uid=%d", __func__,
+                               to_string(overrideFps).c_str(), uid);
+        if (SFTRACE_ENABLED() && FlagManager::getInstance().trace_frame_rate_override()) {
             std::stringstream ss;
             ss << "FrameRateOverride " << uid;
-            ATRACE_INT(ss.str().c_str(), overrideFps.getIntValue());
+            SFTRACE_INT(ss.str().c_str(), overrideFps.getIntValue());
         }
         frameRateOverrides.emplace(uid, overrideFps);
     }
@@ -1640,7 +1640,7 @@
         case FrameRateCategory::Normal:
             return FpsRange{60_Hz, 120_Hz};
         case FrameRateCategory::Low:
-            return FpsRange{30_Hz, 120_Hz};
+            return FpsRange{48_Hz, 120_Hz};
         case FrameRateCategory::HighHint:
         case FrameRateCategory::NoPreference:
         case FrameRateCategory::Default:
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.h b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
index 998b1b8..a398c01 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.h
@@ -210,6 +210,8 @@
         // within the timeout of DisplayPowerTimer.
         bool powerOnImminent = false;
 
+        bool shouldEmitEvent() const { return !idle; }
+
         bool operator==(GlobalSignals other) const {
             return touch == other.touch && idle == other.idle &&
                     powerOnImminent == other.powerOnImminent;
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 5ec7e48..727541e 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -24,12 +24,12 @@
 #include <android-base/stringprintf.h>
 #include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
 #include <android/hardware/configstore/1.1/ISurfaceFlingerConfigs.h>
+#include <common/trace.h>
 #include <configstore/Utils.h>
 #include <ftl/concat.h>
 #include <ftl/enum.h>
 #include <ftl/fake_guard.h>
 #include <ftl/small_map.h>
-#include <gui/TraceUtils.h>
 #include <gui/WindowInfo.h>
 #include <system/window.h>
 #include <ui/DisplayMap.h>
@@ -258,8 +258,8 @@
         const auto period = pacesetterPtr->targeterPtr->target().expectedFrameDuration();
         const auto skipDuration = Duration::fromNs(
                 static_cast<nsecs_t>(period.ns() * mPacesetterFrameDurationFractionToSkip));
-        ATRACE_FORMAT("Injecting jank for %f%% of the frame (%" PRId64 " ns)",
-                      mPacesetterFrameDurationFractionToSkip * 100, skipDuration.ns());
+        SFTRACE_FORMAT("Injecting jank for %f%% of the frame (%" PRId64 " ns)",
+                       mPacesetterFrameDurationFractionToSkip * 100, skipDuration.ns());
         std::this_thread::sleep_for(skipDuration);
         mPacesetterFrameDurationFractionToSkip = 0.f;
     }
@@ -290,7 +290,7 @@
         return true;
     }
 
-    ATRACE_FORMAT("%s uid: %d frameRate: %s", __func__, uid, to_string(*frameRate).c_str());
+    SFTRACE_FORMAT("%s uid: %d frameRate: %s", __func__, uid, to_string(*frameRate).c_str());
     return getVsyncSchedule()->getTracker().isVSyncInPhase(expectedVsyncTime.ns(), *frameRate);
 }
 
@@ -403,14 +403,20 @@
     eventThreadFor(Cycle::Render).enableSyntheticVsync(enable);
 }
 
-void Scheduler::onFrameRateOverridesChanged(Cycle cycle, PhysicalDisplayId displayId) {
-    const bool supportsFrameRateOverrideByContent =
-            pacesetterSelectorPtr()->supportsAppFrameRateOverrideByContent();
+void Scheduler::onFrameRateOverridesChanged() {
+    const auto [pacesetterId, supportsFrameRateOverrideByContent] = [this] {
+        std::scoped_lock lock(mDisplayLock);
+        const auto pacesetterOpt = pacesetterDisplayLocked();
+        LOG_ALWAYS_FATAL_IF(!pacesetterOpt);
+        const Display& pacesetter = *pacesetterOpt;
+        return std::make_pair(FTL_FAKE_GUARD(kMainThreadContext, *mPacesetterDisplayId),
+                              pacesetter.selectorPtr->supportsAppFrameRateOverrideByContent());
+    }();
 
     std::vector<FrameRateOverride> overrides =
             mFrameRateOverrideMappings.getAllFrameRateOverrides(supportsFrameRateOverrideByContent);
 
-    eventThreadFor(cycle).onFrameRateOverridesChanged(displayId, std::move(overrides));
+    eventThreadFor(Cycle::Render).onFrameRateOverridesChanged(pacesetterId, std::move(overrides));
 }
 
 void Scheduler::onHdcpLevelsChanged(Cycle cycle, PhysicalDisplayId displayId,
@@ -418,50 +424,49 @@
     eventThreadFor(cycle).onHdcpLevelsChanged(displayId, connectedLevel, maxLevel);
 }
 
-void Scheduler::onPrimaryDisplayModeChanged(Cycle cycle, const FrameRateMode& mode) {
-    {
+bool Scheduler::onDisplayModeChanged(PhysicalDisplayId displayId, const FrameRateMode& mode) {
+    const bool isPacesetter =
+            FTL_FAKE_GUARD(kMainThreadContext,
+                           (std::scoped_lock(mDisplayLock), displayId == mPacesetterDisplayId));
+
+    if (isPacesetter) {
         std::lock_guard<std::mutex> lock(mPolicyLock);
-        // Cache the last reported modes for primary display.
-        mPolicy.cachedModeChangedParams = {cycle, mode};
+        mPolicy.emittedModeOpt = mode;
 
         // Invalidate content based refresh rate selection so it could be calculated
         // again for the new refresh rate.
         mPolicy.contentRequirements.clear();
     }
-    onNonPrimaryDisplayModeChanged(cycle, mode);
-}
 
-void Scheduler::dispatchCachedReportedMode() {
-    // Check optional fields first.
-    if (!mPolicy.modeOpt) {
-        ALOGW("No mode ID found, not dispatching cached mode.");
-        return;
-    }
-    if (!mPolicy.cachedModeChangedParams) {
-        ALOGW("No mode changed params found, not dispatching cached mode.");
-        return;
-    }
-
-    // If the mode is not the current mode, this means that a
-    // mode change is in progress. In that case we shouldn't dispatch an event
-    // as it will be dispatched when the current mode changes.
-    if (pacesetterSelectorPtr()->getActiveMode() != mPolicy.modeOpt) {
-        return;
-    }
-
-    // If there is no change from cached mode, there is no need to dispatch an event
-    if (*mPolicy.modeOpt == mPolicy.cachedModeChangedParams->mode) {
-        return;
-    }
-
-    mPolicy.cachedModeChangedParams->mode = *mPolicy.modeOpt;
-    onNonPrimaryDisplayModeChanged(mPolicy.cachedModeChangedParams->cycle,
-                                   mPolicy.cachedModeChangedParams->mode);
-}
-
-void Scheduler::onNonPrimaryDisplayModeChanged(Cycle cycle, const FrameRateMode& mode) {
     if (hasEventThreads()) {
-        eventThreadFor(cycle).onModeChanged(mode);
+        eventThreadFor(Cycle::Render).onModeChanged(mode);
+    }
+
+    return isPacesetter;
+}
+
+void Scheduler::emitModeChangeIfNeeded() {
+    if (!mPolicy.modeOpt || !mPolicy.emittedModeOpt) {
+        ALOGW("No mode change to emit");
+        return;
+    }
+
+    const auto& mode = *mPolicy.modeOpt;
+
+    if (mode != pacesetterSelectorPtr()->getActiveMode()) {
+        // A mode change is pending. The event will be emitted when the mode becomes active.
+        return;
+    }
+
+    if (mode == *mPolicy.emittedModeOpt) {
+        // The event was already emitted.
+        return;
+    }
+
+    mPolicy.emittedModeOpt = mode;
+
+    if (hasEventThreads()) {
+        eventThreadFor(Cycle::Render).onModeChanged(mode);
     }
 }
 
@@ -518,7 +523,7 @@
 }
 
 void Scheduler::resyncAllToHardwareVsync(bool allowToEnable) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::scoped_lock lock(mDisplayLock);
     ftl::FakeGuard guard(kMainThreadContext);
 
@@ -552,12 +557,12 @@
 
 void Scheduler::onHardwareVsyncRequest(PhysicalDisplayId id, bool enabled) {
     static const auto& whence = __func__;
-    ATRACE_NAME(ftl::Concat(whence, ' ', id.value, ' ', enabled).c_str());
+    SFTRACE_NAME(ftl::Concat(whence, ' ', id.value, ' ', enabled).c_str());
 
     // On main thread to serialize reads/writes of pending hardware VSYNC state.
     static_cast<void>(
             schedule([=, this]() FTL_FAKE_GUARD(mDisplayLock) FTL_FAKE_GUARD(kMainThreadContext) {
-                ATRACE_NAME(ftl::Concat(whence, ' ', id.value, ' ', enabled).c_str());
+                SFTRACE_NAME(ftl::Concat(whence, ' ', id.value, ' ', enabled).c_str());
 
                 if (const auto displayOpt = mDisplays.get(id)) {
                     auto& display = displayOpt->get();
@@ -639,7 +644,7 @@
 }
 
 void Scheduler::addPresentFence(PhysicalDisplayId id, std::shared_ptr<FenceTime> fence) {
-    ATRACE_NAME(ftl::Concat(__func__, ' ', id.value).c_str());
+    SFTRACE_NAME(ftl::Concat(__func__, ' ', id.value).c_str());
     const auto scheduleOpt =
             (ftl::FakeGuard(mDisplayLock), mDisplays.get(id)).and_then([](const Display& display) {
                 return display.powerMode == hal::PowerMode::OFF
@@ -659,11 +664,12 @@
     }
 }
 
-void Scheduler::registerLayer(Layer* layer) {
+void Scheduler::registerLayer(Layer* layer, FrameRateCompatibility frameRateCompatibility) {
     // If the content detection feature is off, we still keep the layer history,
     // since we use it for other features (like Frame Rate API), so layers
     // still need to be registered.
-    mLayerHistory.registerLayer(layer, mFeatures.test(Feature::kContentDetection));
+    mLayerHistory.registerLayer(layer, mFeatures.test(Feature::kContentDetection),
+                                frameRateCompatibility);
 }
 
 void Scheduler::deregisterLayer(Layer* layer) {
@@ -702,7 +708,7 @@
     const auto selectorPtr = pacesetterSelectorPtr();
     if (!selectorPtr->canSwitch()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     LayerHistory::Summary summary = mLayerHistory.summarize(*selectorPtr, systemTime());
     applyPolicy(&Policy::contentRequirements, std::move(summary));
@@ -787,7 +793,7 @@
 }
 
 void Scheduler::kernelIdleTimerCallback(TimerState state) {
-    ATRACE_INT("ExpiredKernelIdleTimer", static_cast<int>(state));
+    SFTRACE_INT("ExpiredKernelIdleTimer", static_cast<int>(state));
 
     // TODO(145561154): cleanup the kernel idle timer implementation and the refresh rate
     // magic number
@@ -818,7 +824,7 @@
 
 void Scheduler::idleTimerCallback(TimerState state) {
     applyPolicy(&Policy::idleTimer, state);
-    ATRACE_INT("ExpiredIdleTimer", static_cast<int>(state));
+    SFTRACE_INT("ExpiredIdleTimer", static_cast<int>(state));
 }
 
 void Scheduler::touchTimerCallback(TimerState state) {
@@ -830,12 +836,12 @@
     if (applyPolicy(&Policy::touch, touch).touch) {
         mLayerHistory.clear();
     }
-    ATRACE_INT("TouchState", static_cast<int>(touch));
+    SFTRACE_INT("TouchState", static_cast<int>(touch));
 }
 
 void Scheduler::displayPowerTimerCallback(TimerState state) {
     applyPolicy(&Policy::displayPowerTimer, state);
-    ATRACE_INT("ExpiredDisplayPowerTimer", static_cast<int>(state));
+    SFTRACE_INT("ExpiredDisplayPowerTimer", static_cast<int>(state));
 }
 
 void Scheduler::dump(utils::Dumper& dumper) const {
@@ -871,22 +877,19 @@
     mRefreshRateStats->dump(dumper.out());
     dumper.eol();
 
-    {
-        utils::Dumper::Section section(dumper, "Frame Targeting"sv);
+    std::scoped_lock lock(mDisplayLock);
+    ftl::FakeGuard guard(kMainThreadContext);
 
-        std::scoped_lock lock(mDisplayLock);
-        ftl::FakeGuard guard(kMainThreadContext);
+    for (const auto& [id, display] : mDisplays) {
+        utils::Dumper::Section
+                section(dumper,
+                        id == mPacesetterDisplayId
+                                ? ftl::Concat("Pacesetter Display ", id.value).c_str()
+                                : ftl::Concat("Follower Display ", id.value).c_str());
 
-        for (const auto& [id, display] : mDisplays) {
-            utils::Dumper::Section
-                    section(dumper,
-                            id == mPacesetterDisplayId
-                                    ? ftl::Concat("Pacesetter Display ", id.value).c_str()
-                                    : ftl::Concat("Follower Display ", id.value).c_str());
-
-            display.targeterPtr->dump(dumper);
-            dumper.eol();
-        }
+        display.selectorPtr->dump(dumper);
+        display.targeterPtr->dump(dumper);
+        dumper.eol();
     }
 }
 
@@ -907,9 +910,13 @@
     }
 }
 
-bool Scheduler::updateFrameRateOverrides(GlobalSignals consideredSignals, Fps displayRefreshRate) {
-    std::scoped_lock lock(mPolicyLock);
-    return updateFrameRateOverridesLocked(consideredSignals, displayRefreshRate);
+void Scheduler::updateFrameRateOverrides(GlobalSignals consideredSignals, Fps displayRefreshRate) {
+    const bool changed = (std::scoped_lock(mPolicyLock),
+                          updateFrameRateOverridesLocked(consideredSignals, displayRefreshRate));
+
+    if (changed) {
+        onFrameRateOverridesChanged();
+    }
 }
 
 bool Scheduler::updateFrameRateOverridesLocked(GlobalSignals consideredSignals,
@@ -1004,7 +1011,7 @@
     auto& layerChoreographers = choreographers->second;
 
     layerChoreographers.frameRate = fps;
-    ATRACE_FORMAT_INSTANT("%s: %s for %s", __func__, to_string(fps).c_str(), layer.name.c_str());
+    SFTRACE_FORMAT_INSTANT("%s: %s for %s", __func__, to_string(fps).c_str(), layer.name.c_str());
     ALOGV("%s: %s for %s", __func__, to_string(fps).c_str(), layer.name.c_str());
 
     auto it = layerChoreographers.connections.begin();
@@ -1086,13 +1093,13 @@
 
 void Scheduler::updateAttachedChoreographers(
         const surfaceflinger::frontend::LayerHierarchy& layerHierarchy, Fps displayRefreshRate) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     updateAttachedChoreographersInternal(layerHierarchy, displayRefreshRate, 0);
 }
 
 template <typename S, typename T>
 auto Scheduler::applyPolicy(S Policy::*statePtr, T&& newState) -> GlobalSignals {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::vector<display::DisplayModeRequest> modeRequests;
     GlobalSignals consideredSignals;
 
@@ -1129,33 +1136,40 @@
         for (auto& [id, choice] : modeChoices) {
             modeRequests.emplace_back(
                     display::DisplayModeRequest{.mode = std::move(choice.mode),
-                                                .emitEvent = !choice.consideredSignals.idle});
+                                                .emitEvent = choice.consideredSignals
+                                                                     .shouldEmitEvent()});
         }
 
-        frameRateOverridesChanged = updateFrameRateOverridesLocked(consideredSignals, modeOpt->fps);
-
+        if (!FlagManager::getInstance().vrr_bugfix_dropped_frame()) {
+            frameRateOverridesChanged =
+                    updateFrameRateOverridesLocked(consideredSignals, modeOpt->fps);
+        }
         if (mPolicy.modeOpt != modeOpt) {
             mPolicy.modeOpt = modeOpt;
             refreshRateChanged = true;
-        } else {
-            // We don't need to change the display mode, but we might need to send an event
-            // about a mode change, since it was suppressed if previously considered idle.
-            if (!consideredSignals.idle) {
-                dispatchCachedReportedMode();
-            }
+        } else if (consideredSignals.shouldEmitEvent()) {
+            // The mode did not change, but we may need to emit if DisplayModeRequest::emitEvent was
+            // previously false.
+            emitModeChangeIfNeeded();
         }
     }
     if (refreshRateChanged) {
         mSchedulerCallback.requestDisplayModes(std::move(modeRequests));
     }
+
+    if (FlagManager::getInstance().vrr_bugfix_dropped_frame()) {
+        std::scoped_lock lock(mPolicyLock);
+        frameRateOverridesChanged =
+                updateFrameRateOverridesLocked(consideredSignals, mPolicy.modeOpt->fps);
+    }
     if (frameRateOverridesChanged) {
-        mSchedulerCallback.triggerOnFrameRateOverridesChanged();
+        onFrameRateOverridesChanged();
     }
     return consideredSignals;
 }
 
 auto Scheduler::chooseDisplayModes() const -> DisplayModeChoiceMap {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     DisplayModeChoiceMap modeChoices;
     const auto globalSignals = makeGlobalSignals();
@@ -1249,6 +1263,8 @@
     } else {
         mFrameRateOverrideMappings.setGameModeRefreshRateForUid(frameRateOverride);
     }
+
+    onFrameRateOverridesChanged();
 }
 
 void Scheduler::setGameDefaultFrameRateForUid(FrameRateOverride frameRateOverride) {
@@ -1267,6 +1283,7 @@
     }
 
     mFrameRateOverrideMappings.setPreferredRefreshRateForUid(frameRateOverride);
+    onFrameRateOverridesChanged();
 }
 
 void Scheduler::updateSmallAreaDetection(
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 94583db..9b32fa9 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -154,13 +154,11 @@
 
     void dispatchHotplugError(int32_t errorCode);
 
-    void onPrimaryDisplayModeChanged(Cycle, const FrameRateMode&) EXCLUDES(mPolicyLock);
-    void onNonPrimaryDisplayModeChanged(Cycle, const FrameRateMode&);
+    // Returns true if the PhysicalDisplayId is the pacesetter.
+    bool onDisplayModeChanged(PhysicalDisplayId, const FrameRateMode&) EXCLUDES(mPolicyLock);
 
     void enableSyntheticVsync(bool = true) REQUIRES(kMainThreadContext);
 
-    void onFrameRateOverridesChanged(Cycle, PhysicalDisplayId);
-
     void onHdcpLevelsChanged(Cycle, PhysicalDisplayId, int32_t, int32_t);
 
     // Modifies work duration in the event thread.
@@ -222,7 +220,7 @@
             REQUIRES(kMainThreadContext);
 
     // Layers are registered on creation, and unregistered when the weak reference expires.
-    void registerLayer(Layer*);
+    void registerLayer(Layer*, FrameRateCompatibility);
     void recordLayerHistory(int32_t id, const LayerProps& layerProps, nsecs_t presentTime,
                             nsecs_t now, LayerHistory::LayerUpdateType) EXCLUDES(mDisplayLock);
     void setModeChangePending(bool pending);
@@ -326,7 +324,7 @@
         return mLayerHistory.getLayerFramerate(now, id);
     }
 
-    bool updateFrameRateOverrides(GlobalSignals, Fps displayRefreshRate) EXCLUDES(mPolicyLock);
+    void updateFrameRateOverrides(GlobalSignals, Fps displayRefreshRate) EXCLUDES(mPolicyLock);
 
     // Returns true if the small dirty detection is enabled for the appId.
     bool supportSmallDirtyDetection(int32_t appId) {
@@ -450,6 +448,9 @@
 
     bool updateFrameRateOverridesLocked(GlobalSignals, Fps displayRefreshRate)
             REQUIRES(mPolicyLock);
+
+    void onFrameRateOverridesChanged();
+
     void updateAttachedChoreographers(const surfaceflinger::frontend::LayerHierarchy&,
                                       Fps displayRefreshRate);
     int updateAttachedChoreographersInternal(const surfaceflinger::frontend::LayerHierarchy&,
@@ -457,7 +458,7 @@
     void updateAttachedChoreographersFrameRate(const surfaceflinger::frontend::RequestedLayerState&,
                                                Fps fps) EXCLUDES(mChoreographerLock);
 
-    void dispatchCachedReportedMode() REQUIRES(mPolicyLock) EXCLUDES(mDisplayLock);
+    void emitModeChangeIfNeeded() REQUIRES(mPolicyLock) EXCLUDES(mDisplayLock);
 
     // IEventThreadCallback overrides
     bool throttleVsync(TimePoint, uid_t) override;
@@ -583,13 +584,8 @@
         // Chosen display mode.
         ftl::Optional<FrameRateMode> modeOpt;
 
-        struct ModeChangedParams {
-            Cycle cycle;
-            FrameRateMode mode;
-        };
-
-        // Parameters for latest dispatch of mode change event.
-        std::optional<ModeChangedParams> cachedModeChangedParams;
+        // Display mode of latest emitted event.
+        std::optional<FrameRateMode> emittedModeOpt;
     } mPolicy GUARDED_BY(mPolicyLock);
 
     std::mutex mChoreographerLock;
diff --git a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
index 6d6b70d..900bce0 100644
--- a/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncDispatchTimerQueue.cpp
@@ -19,8 +19,8 @@
 #include <vector>
 
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <ftl/concat.h>
-#include <gui/TraceUtils.h>
 #include <log/log_main.h>
 
 #include <scheduler/TimeKeeper.h>
@@ -45,14 +45,14 @@
 }
 
 void traceEntry(const VSyncDispatchTimerQueueEntry& entry, nsecs_t now) {
-    if (!ATRACE_ENABLED() || !entry.wakeupTime().has_value() || !entry.targetVsync().has_value()) {
+    if (!SFTRACE_ENABLED() || !entry.wakeupTime().has_value() || !entry.targetVsync().has_value()) {
         return;
     }
 
     ftl::Concat trace(ftl::truncated<5>(entry.name()), " alarm in ",
                       ns2us(*entry.wakeupTime() - now), "us; VSYNC in ",
                       ns2us(*entry.targetVsync() - now), "us");
-    ATRACE_FORMAT_INSTANT(trace.c_str());
+    SFTRACE_FORMAT_INSTANT(trace.c_str());
 }
 
 } // namespace
@@ -98,7 +98,7 @@
 
 ScheduleResult VSyncDispatchTimerQueueEntry::schedule(VSyncDispatch::ScheduleTiming timing,
                                                       VSyncTracker& tracker, nsecs_t now) {
-    ATRACE_NAME("VSyncDispatchTimerQueueEntry::schedule");
+    SFTRACE_NAME("VSyncDispatchTimerQueueEntry::schedule");
     auto nextVsyncTime =
             tracker.nextAnticipatedVSyncTimeFrom(std::max(timing.lastVsync,
                                                           now + timing.workDuration +
@@ -110,8 +110,8 @@
             mArmedInfo && (nextVsyncTime > (mArmedInfo->mActualVsyncTime + mMinVsyncDistance));
     bool const wouldSkipAWakeup =
             mArmedInfo && ((nextWakeupTime > (mArmedInfo->mActualWakeupTime + mMinVsyncDistance)));
-    ATRACE_FORMAT_INSTANT("%s: wouldSkipAVsyncTarget=%d wouldSkipAWakeup=%d", mName.c_str(),
-                          wouldSkipAVsyncTarget, wouldSkipAWakeup);
+    SFTRACE_FORMAT_INSTANT("%s: wouldSkipAVsyncTarget=%d wouldSkipAWakeup=%d", mName.c_str(),
+                           wouldSkipAVsyncTarget, wouldSkipAWakeup);
     if (FlagManager::getInstance().dont_skip_on_early_ro()) {
         if (wouldSkipAVsyncTarget || wouldSkipAWakeup) {
             nextVsyncTime = mArmedInfo->mActualVsyncTime;
@@ -154,13 +154,13 @@
     bool const nextVsyncTooClose = mLastDispatchTime &&
             (nextVsyncTime - *mLastDispatchTime + mMinVsyncDistance) <= currentPeriod;
     if (alreadyDispatchedForVsync) {
-        ATRACE_FORMAT_INSTANT("alreadyDispatchedForVsync");
+        SFTRACE_FORMAT_INSTANT("alreadyDispatchedForVsync");
         return tracker.nextAnticipatedVSyncTimeFrom(*mLastDispatchTime + mMinVsyncDistance,
                                                     *mLastDispatchTime);
     }
 
     if (nextVsyncTooClose) {
-        ATRACE_FORMAT_INSTANT("nextVsyncTooClose");
+        SFTRACE_FORMAT_INSTANT("nextVsyncTooClose");
         return tracker.nextAnticipatedVSyncTimeFrom(*mLastDispatchTime + currentPeriod,
                                                     *mLastDispatchTime + currentPeriod);
     }
@@ -172,7 +172,7 @@
                                                 VSyncDispatch::ScheduleTiming timing,
                                                 std::optional<ArmingInfo> armedInfo) const
         -> ArmingInfo {
-    ATRACE_NAME("VSyncDispatchTimerQueueEntry::getArmedInfo");
+    SFTRACE_NAME("VSyncDispatchTimerQueueEntry::getArmedInfo");
     const auto earliestReadyBy = now + timing.workDuration + timing.readyDuration;
     const auto earliestVsync = std::max(earliestReadyBy, timing.lastVsync);
 
@@ -188,8 +188,8 @@
                 armedInfo && (nextVsyncTime > (armedInfo->mActualVsyncTime + mMinVsyncDistance));
         bool const wouldSkipAWakeup =
                 armedInfo && (nextWakeupTime > (armedInfo->mActualWakeupTime + mMinVsyncDistance));
-        ATRACE_FORMAT_INSTANT("%s: wouldSkipAVsyncTarget=%d wouldSkipAWakeup=%d", mName.c_str(),
-                              wouldSkipAVsyncTarget, wouldSkipAWakeup);
+        SFTRACE_FORMAT_INSTANT("%s: wouldSkipAVsyncTarget=%d wouldSkipAWakeup=%d", mName.c_str(),
+                               wouldSkipAVsyncTarget, wouldSkipAWakeup);
         if (wouldSkipAVsyncTarget || wouldSkipAWakeup) {
             return *armedInfo;
         }
@@ -199,7 +199,7 @@
 }
 
 void VSyncDispatchTimerQueueEntry::update(VSyncTracker& tracker, nsecs_t now) {
-    ATRACE_NAME("VSyncDispatchTimerQueueEntry::update");
+    SFTRACE_NAME("VSyncDispatchTimerQueueEntry::update");
     if (!mArmedInfo && !mWorkloadUpdateInfo) {
         return;
     }
@@ -208,9 +208,9 @@
         const auto workDelta = mWorkloadUpdateInfo->workDuration - mScheduleTiming.workDuration;
         const auto readyDelta = mWorkloadUpdateInfo->readyDuration - mScheduleTiming.readyDuration;
         const auto lastVsyncDelta = mWorkloadUpdateInfo->lastVsync - mScheduleTiming.lastVsync;
-        ATRACE_FORMAT_INSTANT("Workload updated workDelta=%" PRId64 " readyDelta=%" PRId64
-                              " lastVsyncDelta=%" PRId64,
-                              workDelta, readyDelta, lastVsyncDelta);
+        SFTRACE_FORMAT_INSTANT("Workload updated workDelta=%" PRId64 " readyDelta=%" PRId64
+                               " lastVsyncDelta=%" PRId64,
+                               workDelta, readyDelta, lastVsyncDelta);
         mScheduleTiming = *mWorkloadUpdateInfo;
         mWorkloadUpdateInfo.reset();
     }
@@ -310,7 +310,7 @@
 
 void VSyncDispatchTimerQueue::rearmTimerSkippingUpdateFor(
         nsecs_t now, CallbackMap::const_iterator skipUpdateIt) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::optional<nsecs_t> min;
     std::optional<nsecs_t> targetVsync;
     std::optional<std::string_view> nextWakeupName;
@@ -337,13 +337,13 @@
     if (min && min < mIntendedWakeupTime) {
         setTimer(*min, now);
     } else {
-        ATRACE_NAME("cancel timer");
+        SFTRACE_NAME("cancel timer");
         cancelTimer();
     }
 }
 
 void VSyncDispatchTimerQueue::timerCallback() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     struct Invocation {
         std::shared_ptr<VSyncDispatchTimerQueueEntry> callback;
         nsecs_t vsyncTimestamp;
@@ -383,7 +383,7 @@
 
     for (auto const& invocation : invocations) {
         ftl::Concat trace(ftl::truncated<5>(invocation.callback->name()));
-        ATRACE_FORMAT("%s: %s", __func__, trace.c_str());
+        SFTRACE_FORMAT("%s: %s", __func__, trace.c_str());
         invocation.callback->callback(invocation.vsyncTimestamp, invocation.wakeupTimestamp,
                                       invocation.deadlineTimestamp);
     }
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index dd3c4b0..4a7cff5 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
@@ -30,10 +30,10 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <cutils/compiler.h>
 #include <cutils/properties.h>
 #include <ftl/concat.h>
-#include <gui/TraceUtils.h>
 #include <utils/Log.h>
 
 #include "RefreshRateSelector.h"
@@ -77,7 +77,7 @@
 }
 
 inline void VSyncPredictor::traceInt64(const char* name, int64_t value) const {
-    ATRACE_INT64(ftl::Concat(ftl::truncated<14>(name), " ", mId.value).c_str(), value);
+    SFTRACE_INT64(ftl::Concat(ftl::truncated<14>(name), " ", mId.value).c_str(), value);
 }
 
 inline size_t VSyncPredictor::next(size_t i) const {
@@ -89,7 +89,9 @@
 }
 
 bool VSyncPredictor::validate(nsecs_t timestamp) const {
+    SFTRACE_CALL();
     if (mLastTimestampIndex < 0 || mTimestamps.empty()) {
+        SFTRACE_INSTANT("timestamp valid (first)");
         return true;
     }
 
@@ -98,7 +100,11 @@
             (timestamp - aValidTimestamp) % idealPeriod() * kMaxPercent / idealPeriod();
     if (percent >= kOutlierTolerancePercent &&
         percent <= (kMaxPercent - kOutlierTolerancePercent)) {
-        ATRACE_FORMAT_INSTANT("timestamp is not aligned with model");
+        SFTRACE_FORMAT_INSTANT("timestamp not aligned with model. aValidTimestamp %.2fms ago"
+                               ", timestamp %.2fms ago, idealPeriod=%.2 percent=%d",
+                               (mClock->now() - aValidTimestamp) / 1e6f,
+                               (mClock->now() - timestamp) / 1e6f,
+                               idealPeriod() / 1e6f, percent);
         return false;
     }
 
@@ -109,7 +115,7 @@
     const auto distancePercent = std::abs(*iter - timestamp) * kMaxPercent / idealPeriod();
     if (distancePercent < kOutlierTolerancePercent) {
         // duplicate timestamp
-        ATRACE_FORMAT_INSTANT("duplicate timestamp");
+        SFTRACE_FORMAT_INSTANT("duplicate timestamp");
         return false;
     }
     return true;
@@ -135,7 +141,7 @@
 }
 
 bool VSyncPredictor::addVsyncTimestamp(nsecs_t timestamp) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard lock(mMutex);
 
@@ -148,15 +154,18 @@
             // Add the timestamp to mTimestamps before clearing it so we could
             // update mKnownTimestamp based on the new timestamp.
             mTimestamps.push_back(timestamp);
-            clearTimestamps();
+
+            // Do not clear timelines as we don't want to break the phase while
+            // we are still learning.
+            clearTimestamps(/* clearTimelines */ false);
         } else if (!mTimestamps.empty()) {
             mKnownTimestamp =
                     std::max(timestamp, *std::max_element(mTimestamps.begin(), mTimestamps.end()));
         } else {
             mKnownTimestamp = timestamp;
         }
-        ATRACE_FORMAT_INSTANT("timestamp rejected. mKnownTimestamp was %.2fms ago",
-                              (mClock->now() - *mKnownTimestamp) / 1e6f);
+        SFTRACE_FORMAT_INSTANT("timestamp rejected. mKnownTimestamp was %.2fms ago",
+                               (mClock->now() - *mKnownTimestamp) / 1e6f);
         return false;
     }
 
@@ -235,7 +244,7 @@
 
     if (CC_UNLIKELY(bottom == 0)) {
         it->second = {idealPeriod(), 0};
-        clearTimestamps();
+        clearTimestamps(/* clearTimelines */ true);
         return false;
     }
 
@@ -245,7 +254,7 @@
     auto const percent = std::abs(anticipatedPeriod - idealPeriod()) * kMaxPercent / idealPeriod();
     if (percent >= kOutlierTolerancePercent) {
         it->second = {idealPeriod(), 0};
-        clearTimestamps();
+        clearTimestamps(/* clearTimelines */ true);
         return false;
     }
 
@@ -297,7 +306,7 @@
 
 nsecs_t VSyncPredictor::nextAnticipatedVSyncTimeFrom(nsecs_t timePoint,
                                                      std::optional<nsecs_t> lastVsyncOpt) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard lock(mMutex);
 
     const auto now = TimePoint::fromNs(mClock->now());
@@ -330,8 +339,8 @@
 
     if (*vsyncOpt > mLastCommittedVsync) {
         mLastCommittedVsync = *vsyncOpt;
-        ATRACE_FORMAT_INSTANT("mLastCommittedVsync in %.2fms",
-                              float(mLastCommittedVsync.ns() - mClock->now()) / 1e6f);
+        SFTRACE_FORMAT_INSTANT("mLastCommittedVsync in %.2fms",
+                               float(mLastCommittedVsync.ns() - mClock->now()) / 1e6f);
     }
 
     return vsyncOpt->ns();
@@ -360,7 +369,11 @@
     purgeTimelines(now);
 
     for (auto& timeline : mTimelines) {
-        if (timeline.validUntil() && timeline.validUntil()->ns() > vsync) {
+        const bool isVsyncValid = FlagManager::getInstance().vrr_bugfix_24q4()
+                ? timeline.isWithin(TimePoint::fromNs(vsync)) ==
+                        VsyncTimeline::VsyncOnTimeline::Unique
+                : timeline.validUntil() && timeline.validUntil()->ns() > vsync;
+        if (isVsyncValid) {
             return timeline.isVSyncInPhase(model, vsync, frameRate);
         }
     }
@@ -370,7 +383,7 @@
 }
 
 void VSyncPredictor::setRenderRate(Fps renderRate, bool applyImmediately) {
-    ATRACE_FORMAT("%s %s", __func__, to_string(renderRate).c_str());
+    SFTRACE_FORMAT("%s %s", __func__, to_string(renderRate).c_str());
     ALOGV("%s %s: RenderRate %s ", __func__, to_string(mId).c_str(), to_string(renderRate).c_str());
     std::lock_guard lock(mMutex);
     const auto prevRenderRate = mRenderRateOpt;
@@ -378,7 +391,7 @@
     const auto renderPeriodDelta =
             prevRenderRate ? prevRenderRate->getPeriodNsecs() - renderRate.getPeriodNsecs() : 0;
     if (applyImmediately) {
-        ATRACE_FORMAT_INSTANT("applyImmediately");
+        SFTRACE_FORMAT_INSTANT("applyImmediately");
         while (mTimelines.size() > 1) {
             mTimelines.pop_front();
         }
@@ -390,13 +403,20 @@
     const bool newRenderRateIsHigher = renderPeriodDelta > renderRate.getPeriodNsecs() &&
             mLastCommittedVsync.ns() - mClock->now() > 2 * renderRate.getPeriodNsecs();
     if (newRenderRateIsHigher) {
-        ATRACE_FORMAT_INSTANT("newRenderRateIsHigher");
+        SFTRACE_FORMAT_INSTANT("newRenderRateIsHigher");
         mTimelines.clear();
         mLastCommittedVsync = TimePoint::fromNs(0);
 
     } else {
-        mTimelines.back().freeze(
-                TimePoint::fromNs(mLastCommittedVsync.ns() + mIdealPeriod.ns() / 2));
+        if (FlagManager::getInstance().vrr_bugfix_24q4()) {
+            // We need to freeze the timeline at the committed vsync, and
+            // then use with threshold adjustments when required to avoid
+            // marginal errors when checking the vsync on the timeline.
+            mTimelines.back().freeze(mLastCommittedVsync);
+        } else {
+            mTimelines.back().freeze(
+                    TimePoint::fromNs(mLastCommittedVsync.ns() + mIdealPeriod.ns() / 2));
+        }
     }
     mTimelines.emplace_back(mLastCommittedVsync, mIdealPeriod, renderRate);
     purgeTimelines(TimePoint::fromNs(mClock->now()));
@@ -405,7 +425,7 @@
 void VSyncPredictor::setDisplayModePtr(ftl::NonNull<DisplayModePtr> modePtr) {
     LOG_ALWAYS_FATAL_IF(mId != modePtr->getPhysicalDisplayId(),
                         "mode does not belong to the display");
-    ATRACE_FORMAT("%s %s", __func__, to_string(*modePtr).c_str());
+    SFTRACE_FORMAT("%s %s", __func__, to_string(*modePtr).c_str());
     const auto timeout = modePtr->getVrrConfig()
             ? modePtr->getVrrConfig()->notifyExpectedPresentConfig
             : std::nullopt;
@@ -414,6 +434,9 @@
           timeout ? std::to_string(timeout->timeoutNs).c_str() : "N/A");
     std::lock_guard lock(mMutex);
 
+    // do not clear the timelines on VRR displays if we didn't change the mode
+    const bool isVrr = modePtr->getVrrConfig().has_value();
+    const bool clearTimelines = !isVrr || mDisplayModePtr->getId() != modePtr->getId();
     mDisplayModePtr = modePtr;
     mNumVsyncsForFrame = numVsyncsPerFrame(mDisplayModePtr);
     traceInt64("VSP-setPeriod", modePtr->getVsyncRate().getPeriodNsecs());
@@ -427,13 +450,15 @@
         mRateMap[idealPeriod()] = {idealPeriod(), 0};
     }
 
-    mTimelines.clear();
-    clearTimestamps();
+    if (clearTimelines) {
+      mTimelines.clear();
+    }
+    clearTimestamps(clearTimelines);
 }
 
 Duration VSyncPredictor::ensureMinFrameDurationIsKept(TimePoint expectedPresentTime,
                                                       TimePoint lastConfirmedPresentTime) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (mNumVsyncsForFrame <= 1) {
         return 0ns;
@@ -441,20 +466,21 @@
 
     const auto currentPeriod = mRateMap.find(idealPeriod())->second.slope;
     const auto threshold = currentPeriod / 2;
-    const auto minFramePeriod = minFramePeriodLocked().ns();
+    const auto minFramePeriod = minFramePeriodLocked();
 
     auto prev = lastConfirmedPresentTime.ns();
     for (auto& current : mPastExpectedPresentTimes) {
         if (CC_UNLIKELY(mTraceOn)) {
-            ATRACE_FORMAT_INSTANT("current %.2f past last signaled fence",
-                                  static_cast<float>(current.ns() - lastConfirmedPresentTime.ns()) /
-                                          1e6f);
+            SFTRACE_FORMAT_INSTANT("current %.2f past last signaled fence",
+                                   static_cast<float>(current.ns() -
+                                                      lastConfirmedPresentTime.ns()) /
+                                           1e6f);
         }
 
-        const auto minPeriodViolation = current.ns() - prev + threshold < minFramePeriod;
+        const auto minPeriodViolation = current.ns() - prev + threshold < minFramePeriod.ns();
         if (minPeriodViolation) {
-            ATRACE_NAME("minPeriodViolation");
-            current = TimePoint::fromNs(prev + minFramePeriod);
+            SFTRACE_NAME("minPeriodViolation");
+            current = TimePoint::fromNs(prev + minFramePeriod.ns());
             prev = current.ns();
         } else {
             break;
@@ -465,7 +491,7 @@
         const auto phase = Duration(mPastExpectedPresentTimes.back() - expectedPresentTime);
         if (phase > 0ns) {
             for (auto& timeline : mTimelines) {
-                timeline.shiftVsyncSequence(phase);
+                timeline.shiftVsyncSequence(phase, minFramePeriod);
             }
             mPastExpectedPresentTimes.clear();
             return phase;
@@ -475,18 +501,18 @@
     return 0ns;
 }
 
-void VSyncPredictor::onFrameBegin(TimePoint expectedPresentTime,
-                                  TimePoint lastConfirmedPresentTime) {
-    ATRACE_NAME("VSyncPredictor::onFrameBegin");
+void VSyncPredictor::onFrameBegin(TimePoint expectedPresentTime, FrameTime lastSignaledFrameTime) {
+    SFTRACE_NAME("VSyncPredictor::onFrameBegin");
     std::lock_guard lock(mMutex);
 
     if (!mDisplayModePtr->getVrrConfig()) return;
 
+    const auto [lastConfirmedPresentTime, lastConfirmedExpectedPresentTime] = lastSignaledFrameTime;
     if (CC_UNLIKELY(mTraceOn)) {
-        ATRACE_FORMAT_INSTANT("vsync is %.2f past last signaled fence",
-                              static_cast<float>(expectedPresentTime.ns() -
-                                                 lastConfirmedPresentTime.ns()) /
-                                      1e6f);
+        SFTRACE_FORMAT_INSTANT("vsync is %.2f past last signaled fence",
+                               static_cast<float>(expectedPresentTime.ns() -
+                                                  lastConfirmedPresentTime.ns()) /
+                                       1e6f);
     }
     const auto currentPeriod = mRateMap.find(idealPeriod())->second.slope;
     const auto threshold = currentPeriod / 2;
@@ -497,9 +523,9 @@
         const bool frontIsBeforeConfirmed = front < lastConfirmedPresentTime.ns() + threshold;
         if (frontIsBeforeConfirmed) {
             if (CC_UNLIKELY(mTraceOn)) {
-                ATRACE_FORMAT_INSTANT("Discarding old vsync - %.2f before last signaled fence",
-                                      static_cast<float>(lastConfirmedPresentTime.ns() - front) /
-                                              1e6f);
+                SFTRACE_FORMAT_INSTANT("Discarding old vsync - %.2f before last signaled fence",
+                                       static_cast<float>(lastConfirmedPresentTime.ns() - front) /
+                                               1e6f);
             }
             mPastExpectedPresentTimes.pop_front();
         } else {
@@ -507,6 +533,11 @@
         }
     }
 
+    if (lastConfirmedExpectedPresentTime.ns() - lastConfirmedPresentTime.ns() > threshold) {
+        SFTRACE_FORMAT_INSTANT("lastFramePresentedEarly");
+        return;
+    }
+
     const auto phase = ensureMinFrameDurationIsKept(expectedPresentTime, lastConfirmedPresentTime);
     if (phase > 0ns) {
         mMissedVsync = {expectedPresentTime, minFramePeriodLocked()};
@@ -514,7 +545,7 @@
 }
 
 void VSyncPredictor::onFrameMissed(TimePoint expectedPresentTime) {
-    ATRACE_NAME("VSyncPredictor::onFrameMissed");
+    SFTRACE_NAME("VSyncPredictor::onFrameMissed");
 
     std::lock_guard lock(mMutex);
     if (!mDisplayModePtr->getVrrConfig()) return;
@@ -539,15 +570,19 @@
     return mRateMap.find(idealPeriod())->second;
 }
 
-void VSyncPredictor::clearTimestamps() {
-    ATRACE_CALL();
+void VSyncPredictor::clearTimestamps(bool clearTimelines) {
+    SFTRACE_FORMAT("%s: clearTimelines=%d", __func__, clearTimelines);
 
     if (!mTimestamps.empty()) {
         auto const maxRb = *std::max_element(mTimestamps.begin(), mTimestamps.end());
         if (mKnownTimestamp) {
             mKnownTimestamp = std::max(*mKnownTimestamp, maxRb);
+            SFTRACE_FORMAT_INSTANT("mKnownTimestamp was %.2fms ago",
+                               (mClock->now() - *mKnownTimestamp) / 1e6f);
         } else {
             mKnownTimestamp = maxRb;
+            SFTRACE_FORMAT_INSTANT("mKnownTimestamp (maxRb) was %.2fms ago",
+                               (mClock->now() - *mKnownTimestamp) / 1e6f);
         }
 
         mTimestamps.clear();
@@ -558,7 +593,7 @@
     if (mTimelines.empty()) {
         mLastCommittedVsync = TimePoint::fromNs(0);
         mTimelines.emplace_back(mLastCommittedVsync, mIdealPeriod, mRenderRateOpt);
-    } else {
+    } else if (clearTimelines) {
         while (mTimelines.size() > 1) {
             mTimelines.pop_front();
         }
@@ -579,9 +614,10 @@
 }
 
 void VSyncPredictor::resetModel() {
+    SFTRACE_CALL();
     std::lock_guard lock(mMutex);
     mRateMap[idealPeriod()] = {idealPeriod(), 0};
-    clearTimestamps();
+    clearTimestamps(/* clearTimelines */ true);
 }
 
 void VSyncPredictor::dump(std::string& result) const {
@@ -602,7 +638,7 @@
     if (mRenderRateOpt &&
         mLastCommittedVsync.ns() + mRenderRateOpt->getPeriodNsecs() * kEnoughFramesToBreakPhase <
                 mClock->now()) {
-        ATRACE_FORMAT_INSTANT("kEnoughFramesToBreakPhase");
+        SFTRACE_FORMAT_INSTANT("kEnoughFramesToBreakPhase");
         mTimelines.clear();
         mLastCommittedVsync = TimePoint::fromNs(0);
         mTimelines.emplace_back(mLastCommittedVsync, mIdealPeriod, mRenderRateOpt);
@@ -611,7 +647,10 @@
 
     while (mTimelines.size() > 1) {
         const auto validUntilOpt = mTimelines.front().validUntil();
-        if (validUntilOpt && *validUntilOpt < now) {
+        const bool isTimelineOutDated = FlagManager::getInstance().vrr_bugfix_24q4()
+                ? mTimelines.front().isWithin(now) == VsyncTimeline::VsyncOnTimeline::Outside
+                : validUntilOpt && *validUntilOpt < now;
+        if (isTimelineOutDated) {
             mTimelines.pop_front();
         } else {
             break;
@@ -635,16 +674,16 @@
 
 void VSyncPredictor::VsyncTimeline::freeze(TimePoint lastVsync) {
     LOG_ALWAYS_FATAL_IF(mValidUntil.has_value());
-    ATRACE_FORMAT_INSTANT("renderRate %s valid for %.2f",
-                          mRenderRateOpt ? to_string(*mRenderRateOpt).c_str() : "NA",
-                          float(lastVsync.ns() - TimePoint::now().ns()) / 1e6f);
+    SFTRACE_FORMAT_INSTANT("renderRate %s valid for %.2f",
+                           mRenderRateOpt ? to_string(*mRenderRateOpt).c_str() : "NA",
+                           float(lastVsync.ns() - TimePoint::now().ns()) / 1e6f);
     mValidUntil = lastVsync;
 }
 
 std::optional<TimePoint> VSyncPredictor::VsyncTimeline::nextAnticipatedVSyncTimeFrom(
         Model model, std::optional<Period> minFramePeriodOpt, nsecs_t vsync,
         MissedVsync missedVsync, std::optional<nsecs_t> lastVsyncOpt) {
-    ATRACE_FORMAT("renderRate %s", mRenderRateOpt ? to_string(*mRenderRateOpt).c_str() : "NA");
+    SFTRACE_FORMAT("renderRate %s", mRenderRateOpt ? to_string(*mRenderRateOpt).c_str() : "NA");
 
     nsecs_t vsyncTime = snapToVsyncAlignedWithRenderRate(model, vsync);
     const auto threshold = model.slope / 2;
@@ -658,32 +697,38 @@
             // on whether we skipped the frame (onFrameMissed) or not (onFrameBegin) we apply a
             // different fixup. There is no need to to shift the vsync timeline again.
             vsyncTime += missedVsync.fixup.ns();
-            ATRACE_FORMAT_INSTANT("lastFrameMissed");
+            SFTRACE_FORMAT_INSTANT("lastFrameMissed");
         } else if (mightBackpressure && lastVsyncOpt) {
-            // lastVsyncOpt is based on the old timeline before we shifted it. we should correct it
-            // first before trying to use it.
-            lastVsyncOpt = snapToVsyncAlignedWithRenderRate(model, *lastVsyncOpt);
+            if (!FlagManager::getInstance().vrr_bugfix_24q4()) {
+                // lastVsyncOpt does not need to be corrected with the new rate, and
+                // it should be used as is to avoid skipping a frame when changing rates are
+                // aligned at vsync time.
+                lastVsyncOpt = snapToVsyncAlignedWithRenderRate(model, *lastVsyncOpt);
+            }
             const auto vsyncDiff = vsyncTime - *lastVsyncOpt;
             if (vsyncDiff <= minFramePeriodOpt->ns() - threshold) {
                 // avoid a duplicate vsync
-                ATRACE_FORMAT_INSTANT("skipping a vsync to avoid duplicate frame. next in %.2f "
-                                      "which "
-                                      "is %.2f "
-                                      "from "
-                                      "prev. "
-                                      "adjust by %.2f",
-                                      static_cast<float>(vsyncTime - TimePoint::now().ns()) / 1e6f,
-                                      static_cast<float>(vsyncDiff) / 1e6f,
-                                      static_cast<float>(mRenderRateOpt->getPeriodNsecs()) / 1e6f);
+                SFTRACE_FORMAT_INSTANT("skipping a vsync to avoid duplicate frame. next in %.2f "
+                                       "which "
+                                       "is %.2f "
+                                       "from "
+                                       "prev. "
+                                       "adjust by %.2f",
+                                       static_cast<float>(vsyncTime - TimePoint::now().ns()) / 1e6f,
+                                       static_cast<float>(vsyncDiff) / 1e6f,
+                                       static_cast<float>(mRenderRateOpt->getPeriodNsecs()) / 1e6f);
                 vsyncTime += mRenderRateOpt->getPeriodNsecs();
             }
         }
     }
 
-    ATRACE_FORMAT_INSTANT("vsync in %.2fms", float(vsyncTime - TimePoint::now().ns()) / 1e6f);
-    if (mValidUntil && vsyncTime > mValidUntil->ns()) {
-        ATRACE_FORMAT_INSTANT("no longer valid for vsync in %.2f",
-                              static_cast<float>(vsyncTime - TimePoint::now().ns()) / 1e6f);
+    SFTRACE_FORMAT_INSTANT("vsync in %.2fms", float(vsyncTime - TimePoint::now().ns()) / 1e6f);
+    const bool isVsyncInvalid = FlagManager::getInstance().vrr_bugfix_24q4()
+            ? isWithin(TimePoint::fromNs(vsyncTime)) == VsyncOnTimeline::Outside
+            : mValidUntil && vsyncTime > mValidUntil->ns();
+    if (isVsyncInvalid) {
+        SFTRACE_FORMAT_INSTANT("no longer valid for vsync in %.2f",
+                               static_cast<float>(vsyncTime - TimePoint::now().ns()) / 1e6f);
         return std::nullopt;
     }
 
@@ -747,18 +792,39 @@
         return true;
     }
     const auto vsyncSequence = getVsyncSequenceLocked(model, vsync);
-    ATRACE_FORMAT_INSTANT("vsync in: %.2f sequence: %" PRId64 " divisor: %zu",
-                          getVsyncIn(now, vsyncSequence.vsyncTime), vsyncSequence.seq, divisor);
+    SFTRACE_FORMAT_INSTANT("vsync in: %.2f sequence: %" PRId64 " divisor: %zu",
+                           getVsyncIn(now, vsyncSequence.vsyncTime), vsyncSequence.seq, divisor);
     return vsyncSequence.seq % divisor == 0;
 }
 
-void VSyncPredictor::VsyncTimeline::shiftVsyncSequence(Duration phase) {
+void VSyncPredictor::VsyncTimeline::shiftVsyncSequence(Duration phase, Period minFramePeriod) {
     if (mLastVsyncSequence) {
-        ATRACE_FORMAT_INSTANT("adjusting vsync by %.2f", static_cast<float>(phase.ns()) / 1e6f);
+        const auto renderRate = mRenderRateOpt.value_or(Fps::fromPeriodNsecs(mIdealPeriod.ns()));
+        const auto threshold = mIdealPeriod.ns() / 2;
+        if (renderRate.getPeriodNsecs() - phase.ns() + threshold >= minFramePeriod.ns()) {
+            SFTRACE_FORMAT_INSTANT("Not-Adjusting vsync by %.2f",
+                                   static_cast<float>(phase.ns()) / 1e6f);
+            return;
+        }
+        SFTRACE_FORMAT_INSTANT("adjusting vsync by %.2f", static_cast<float>(phase.ns()) / 1e6f);
         mLastVsyncSequence->vsyncTime += phase.ns();
     }
 }
 
+VSyncPredictor::VsyncTimeline::VsyncOnTimeline VSyncPredictor::VsyncTimeline::isWithin(
+        TimePoint vsync) {
+    const auto threshold = mIdealPeriod.ns() / 2;
+    if (!mValidUntil || vsync.ns() < mValidUntil->ns() - threshold) {
+        // if mValidUntil is absent then timeline is not frozen and
+        // vsync should be unique to that timeline.
+        return VsyncOnTimeline::Unique;
+    }
+    if (vsync.ns() > mValidUntil->ns() + threshold) {
+        return VsyncOnTimeline::Outside;
+    }
+    return VsyncOnTimeline::Shared;
+}
+
 } // namespace android::scheduler
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.h b/services/surfaceflinger/Scheduler/VSyncPredictor.h
index 8ce61d8..2df3d04 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.h
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.h
@@ -22,6 +22,7 @@
 #include <vector>
 
 #include <android-base/thread_annotations.h>
+#include <scheduler/FrameTime.h>
 #include <scheduler/TimeKeeper.h>
 #include <ui/DisplayId.h>
 
@@ -77,7 +78,7 @@
 
     void setRenderRate(Fps, bool applyImmediately) final EXCLUDES(mMutex);
 
-    void onFrameBegin(TimePoint expectedPresentTime, TimePoint lastConfirmedPresentTime) final
+    void onFrameBegin(TimePoint expectedPresentTime, FrameTime lastSignaledFrameTime) final
             EXCLUDES(mMutex);
     void onFrameMissed(TimePoint expectedPresentTime) final EXCLUDES(mMutex);
 
@@ -103,9 +104,16 @@
         void freeze(TimePoint lastVsync);
         std::optional<TimePoint> validUntil() const { return mValidUntil; }
         bool isVSyncInPhase(Model, nsecs_t vsync, Fps frameRate);
-        void shiftVsyncSequence(Duration phase);
+        void shiftVsyncSequence(Duration phase, Period minFramePeriod);
         void setRenderRate(std::optional<Fps> renderRateOpt) { mRenderRateOpt = renderRateOpt; }
 
+        enum class VsyncOnTimeline {
+            Unique,  // Within timeline, not shared with next timeline.
+            Shared,  // Within timeline, shared with next timeline.
+            Outside, // Outside of the timeline.
+        };
+        VsyncOnTimeline isWithin(TimePoint vsync);
+
     private:
         nsecs_t snapToVsyncAlignedWithRenderRate(Model model, nsecs_t vsync);
         VsyncSequence getVsyncSequenceLocked(Model, nsecs_t vsync);
@@ -119,7 +127,7 @@
 
     VSyncPredictor(VSyncPredictor const&) = delete;
     VSyncPredictor& operator=(VSyncPredictor const&) = delete;
-    void clearTimestamps() REQUIRES(mMutex);
+    void clearTimestamps(bool clearTimelines) REQUIRES(mMutex);
 
     const std::unique_ptr<Clock> mClock;
     const PhysicalDisplayId mId;
diff --git a/services/surfaceflinger/Scheduler/VSyncReactor.cpp b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
index 8038364..b974cd2 100644
--- a/services/surfaceflinger/Scheduler/VSyncReactor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
@@ -20,11 +20,10 @@
 //#define LOG_NDEBUG 0
 
 #include <assert.h>
+#include <common/trace.h>
 #include <cutils/properties.h>
 #include <ftl/concat.h>
-#include <gui/TraceUtils.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 #include "../TracedOrdinal.h"
 #include "VSyncDispatch.h"
@@ -53,7 +52,7 @@
 VSyncReactor::~VSyncReactor() = default;
 
 bool VSyncReactor::addPresentFence(std::shared_ptr<FenceTime> fence) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!fence) {
         return false;
@@ -66,8 +65,8 @@
 
     std::lock_guard lock(mMutex);
     if (mExternalIgnoreFences || mInternalIgnoreFences) {
-        ATRACE_FORMAT_INSTANT("mExternalIgnoreFences=%d mInternalIgnoreFences=%d",
-            mExternalIgnoreFences, mInternalIgnoreFences);
+        SFTRACE_FORMAT_INSTANT("mExternalIgnoreFences=%d mInternalIgnoreFences=%d",
+                               mExternalIgnoreFences, mInternalIgnoreFences);
         return true;
     }
 
@@ -121,7 +120,7 @@
 }
 
 void VSyncReactor::startPeriodTransitionInternal(ftl::NonNull<DisplayModePtr> modePtr) {
-    ATRACE_FORMAT("%s %" PRIu64, __func__, mId.value);
+    SFTRACE_FORMAT("%s %" PRIu64, __func__, mId.value);
     mPeriodConfirmationInProgress = true;
     mModePtrTransitioningTo = modePtr.get();
     mMoreSamplesNeeded = true;
@@ -129,19 +128,21 @@
 }
 
 void VSyncReactor::endPeriodTransition() {
-    ATRACE_FORMAT("%s %" PRIu64, __func__, mId.value);
+    SFTRACE_FORMAT("%s %" PRIu64, __func__, mId.value);
     mModePtrTransitioningTo.reset();
     mPeriodConfirmationInProgress = false;
     mLastHwVsync.reset();
 }
 
 void VSyncReactor::onDisplayModeChanged(ftl::NonNull<DisplayModePtr> modePtr, bool force) {
-    ATRACE_INT64(ftl::Concat("VSR-", __func__, " ", mId.value).c_str(),
-                 modePtr->getVsyncRate().getPeriodNsecs());
+    SFTRACE_INT64(ftl::Concat("VSR-", __func__, " ", mId.value).c_str(),
+                  modePtr->getVsyncRate().getPeriodNsecs());
     std::lock_guard lock(mMutex);
     mLastHwVsync.reset();
 
-    if (!mSupportKernelIdleTimer && mTracker.isCurrentMode(modePtr) && !force) {
+    // kernel idle timer is not applicable for VRR
+    const bool supportKernelIdleTimer = mSupportKernelIdleTimer && !modePtr->getVrrConfig();
+    if (!supportKernelIdleTimer && mTracker.isCurrentMode(modePtr) && !force) {
         endPeriodTransition();
         setIgnorePresentFencesInternal(false);
         mMoreSamplesNeeded = false;
@@ -191,7 +192,7 @@
 
     std::lock_guard lock(mMutex);
     if (periodConfirmed(timestamp, hwcVsyncPeriod)) {
-        ATRACE_FORMAT("VSR %" PRIu64 ": period confirmed", mId.value);
+        SFTRACE_FORMAT("VSR %" PRIu64 ": period confirmed", mId.value);
         if (mModePtrTransitioningTo) {
             mTracker.setDisplayModePtr(ftl::as_non_null(mModePtrTransitioningTo));
             *periodFlushed = true;
@@ -205,12 +206,12 @@
         endPeriodTransition();
         mMoreSamplesNeeded = mTracker.needsMoreSamples();
     } else if (mPeriodConfirmationInProgress) {
-        ATRACE_FORMAT("VSR %" PRIu64 ": still confirming period", mId.value);
+        SFTRACE_FORMAT("VSR %" PRIu64 ": still confirming period", mId.value);
         mLastHwVsync = timestamp;
         mMoreSamplesNeeded = true;
         *periodFlushed = false;
     } else {
-        ATRACE_FORMAT("VSR %" PRIu64 ": adding sample", mId.value);
+        SFTRACE_FORMAT("VSR %" PRIu64 ": adding sample", mId.value);
         *periodFlushed = false;
         mTracker.addVsyncTimestamp(timestamp);
         mMoreSamplesNeeded = mTracker.needsMoreSamples();
diff --git a/services/surfaceflinger/Scheduler/VSyncTracker.h b/services/surfaceflinger/Scheduler/VSyncTracker.h
index 134d28e..3376fad 100644
--- a/services/surfaceflinger/Scheduler/VSyncTracker.h
+++ b/services/surfaceflinger/Scheduler/VSyncTracker.h
@@ -21,6 +21,7 @@
 
 #include <scheduler/Fps.h>
 #include <scheduler/FrameRateMode.h>
+#include <scheduler/FrameTime.h>
 
 #include "VSyncDispatch.h"
 
@@ -112,8 +113,7 @@
      */
     virtual void setRenderRate(Fps, bool applyImmediately) = 0;
 
-    virtual void onFrameBegin(TimePoint expectedPresentTime,
-                              TimePoint lastConfirmedPresentTime) = 0;
+    virtual void onFrameBegin(TimePoint expectedPresentTime, FrameTime lastSignaledFrameTime) = 0;
 
     virtual void onFrameMissed(TimePoint expectedPresentTime) = 0;
 
diff --git a/services/surfaceflinger/Scheduler/VsyncModulator.cpp b/services/surfaceflinger/Scheduler/VsyncModulator.cpp
index 586357f..fa377e9 100644
--- a/services/surfaceflinger/Scheduler/VsyncModulator.cpp
+++ b/services/surfaceflinger/Scheduler/VsyncModulator.cpp
@@ -22,8 +22,8 @@
 #include "VsyncModulator.h"
 
 #include <android-base/properties.h>
+#include <common/trace.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 #include <chrono>
 #include <cinttypes>
@@ -72,7 +72,7 @@
     }
 
     if (mTraceDetailedInfo) {
-        ATRACE_INT("mEarlyWakeup", static_cast<int>(mEarlyWakeupRequests.size()));
+        SFTRACE_INT("mEarlyWakeup", static_cast<int>(mEarlyWakeupRequests.size()));
     }
 
     if (mEarlyWakeupRequests.empty() && schedule == Schedule::EarlyEnd) {
@@ -172,9 +172,9 @@
         const bool isEarlyGpu = &offsets == &mVsyncConfigSet.earlyGpu;
         const bool isLate = &offsets == &mVsyncConfigSet.late;
 
-        ATRACE_INT("Vsync-EarlyOffsetsOn", isEarly);
-        ATRACE_INT("Vsync-EarlyGpuOffsetsOn", isEarlyGpu);
-        ATRACE_INT("Vsync-LateOffsetsOn", isLate);
+        SFTRACE_INT("Vsync-EarlyOffsetsOn", isEarly);
+        SFTRACE_INT("Vsync-EarlyGpuOffsetsOn", isEarlyGpu);
+        SFTRACE_INT("Vsync-LateOffsetsOn", isLate);
     }
 
     return offsets;
diff --git a/services/surfaceflinger/Scheduler/VsyncSchedule.cpp b/services/surfaceflinger/Scheduler/VsyncSchedule.cpp
index 2fa3318..d3e312a 100644
--- a/services/surfaceflinger/Scheduler/VsyncSchedule.cpp
+++ b/services/surfaceflinger/Scheduler/VsyncSchedule.cpp
@@ -18,8 +18,8 @@
 
 #include <common/FlagManager.h>
 
+#include <common/trace.h>
 #include <ftl/fake_guard.h>
-#include <gui/TraceUtils.h>
 #include <scheduler/Fps.h>
 #include <scheduler/Timer.h>
 
@@ -182,7 +182,7 @@
 }
 
 void VsyncSchedule::enableHardwareVsyncLocked() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (mHwVsyncState == HwVsyncState::Disabled) {
         getTracker().resetModel();
         mRequestHardwareVsync(mId, true);
@@ -191,7 +191,7 @@
 }
 
 void VsyncSchedule::disableHardwareVsync(bool disallow) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard<std::mutex> lock(mHwVsyncLock);
     switch (mHwVsyncState) {
         case HwVsyncState::Enabled:
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
index d37d2dc..2185bb0 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/FrameTargeter.h
@@ -26,6 +26,7 @@
 #include <ui/FenceTime.h>
 
 #include <scheduler/Features.h>
+#include <scheduler/FrameTime.h>
 #include <scheduler/Time.h>
 #include <scheduler/VsyncId.h>
 #include <scheduler/interface/CompositeResult.h>
@@ -54,31 +55,20 @@
 
     std::optional<TimePoint> earliestPresentTime() const { return mEarliestPresentTime; }
 
-    // The time of the VSYNC that preceded this frame. See `presentFenceForPastVsync` for details.
-    TimePoint pastVsyncTime(Period minFramePeriod) const;
-
-    // The present fence for the frame that had targeted the most recent VSYNC before this frame.
-    // If the target VSYNC for any given frame is more than `vsyncPeriod` in the future, then the
-    // VSYNC of at least one previous frame has not yet passed. In other words, this is NOT the
-    // `presentFenceForPreviousFrame` if running N VSYNCs ahead, but the one that should have been
-    // signaled by now (unless that frame missed).
-    FenceTimePtr presentFenceForPastVsync(Period minFramePeriod) const;
-
-    // Equivalent to `presentFenceForPastVsync` unless running N VSYNCs ahead.
-    const FenceTimePtr& presentFenceForPreviousFrame() const {
-        return mPresentFences.front().fenceTime;
-    }
+    // Equivalent to `expectedSignaledPresentFence` unless running N VSYNCs ahead.
+    const FenceTimePtr& presentFenceForPreviousFrame() const;
 
     bool isFramePending() const { return mFramePending; }
+    bool wouldBackpressureHwc() const { return mWouldBackpressureHwc; }
     bool didMissFrame() const { return mFrameMissed; }
     bool didMissHwcFrame() const { return mHwcFrameMissed && !mGpuFrameMissed; }
-    TimePoint lastSignaledFrameTime() const { return mLastSignaledFrameTime; };
+    FrameTime lastSignaledFrameTime() const { return mLastSignaledFrameTime; }
 
 protected:
     explicit FrameTarget(const std::string& displayLabel);
     ~FrameTarget() = default;
 
-    bool wouldPresentEarly(Period minFramePeriod) const;
+    bool wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const;
 
     // Equivalent to `pastVsyncTime` unless running N VSYNCs ahead.
     TimePoint previousFrameVsyncTime(Period minFramePeriod) const {
@@ -87,8 +77,7 @@
 
     void addFence(sp<Fence> presentFence, FenceTimePtr presentFenceTime,
                   TimePoint expectedPresentTime) {
-        mFenceWithFenceTimes.next() = {std::move(presentFence), presentFenceTime,
-                                       expectedPresentTime};
+        mPresentFences.next() = {std::move(presentFence), presentFenceTime, expectedPresentTime};
     }
 
     VsyncId mVsyncId;
@@ -100,16 +89,25 @@
     TracedOrdinal<bool> mFrameMissed;
     TracedOrdinal<bool> mHwcFrameMissed;
     TracedOrdinal<bool> mGpuFrameMissed;
+    bool mWouldBackpressureHwc = false;
 
-    struct FenceWithFenceTime {
+    struct PresentFence {
         sp<Fence> fence = Fence::NO_FENCE;
         FenceTimePtr fenceTime = FenceTime::NO_FENCE;
         TimePoint expectedPresentTime = TimePoint();
     };
-    std::array<FenceWithFenceTime, 2> mPresentFences;
-    utils::RingBuffer<FenceWithFenceTime, 5> mFenceWithFenceTimes;
 
-    TimePoint mLastSignaledFrameTime;
+    // The present fence for the frame that had targeted the most recent VSYNC before this frame.
+    // If the target VSYNC for any given frame is more than `vsyncPeriod` in the future, then the
+    // VSYNC of at least one previous frame has not yet passed. In other words, this is NOT the
+    // `presentFenceForPreviousFrame` if running N VSYNCs ahead, but the one that should have been
+    // signaled by now (unless that frame missed).
+    std::pair<bool /* wouldBackpressure */, PresentFence> expectedSignaledPresentFence(
+            Period vsyncPeriod, Period minFramePeriod) const;
+    std::array<PresentFence, 2> mPresentFencesLegacy;
+    utils::RingBuffer<PresentFence, 5> mPresentFences;
+
+    FrameTime mLastSignaledFrameTime;
 
 private:
     friend class FrameTargeterTestBase;
@@ -119,18 +117,6 @@
         static_assert(N > 1);
         return expectedFrameDuration() > (N - 1) * minFramePeriod;
     }
-
-    const FenceTimePtr pastVsyncTimePtr() const {
-        auto pastFenceTimePtr = FenceTime::NO_FENCE;
-        for (size_t i = 0; i < mFenceWithFenceTimes.size(); i++) {
-            const auto& [_, fenceTimePtr, expectedPresentTime] = mFenceWithFenceTimes[i];
-            if (expectedPresentTime > mFrameBeginTime) {
-                return pastFenceTimePtr;
-            }
-            pastFenceTimePtr = fenceTimePtr;
-        }
-        return pastFenceTimePtr;
-    }
 };
 
 // Computes a display's per-frame metrics about past/upcoming targeting of present deadlines.
@@ -153,7 +139,7 @@
 
     void beginFrame(const BeginFrameArgs&, const IVsyncSource&);
 
-    std::optional<TimePoint> computeEarliestPresentTime(Period minFramePeriod,
+    std::optional<TimePoint> computeEarliestPresentTime(Period vsyncPeriod, Period minFramePeriod,
                                                         Duration hwcMinWorkDuration);
 
     // TODO(b/241285191): Merge with FrameTargeter::endFrame.
diff --git a/libs/tracing_perfetto/include/trace_result.h b/services/surfaceflinger/Scheduler/include/scheduler/FrameTime.h
similarity index 76%
rename from libs/tracing_perfetto/include/trace_result.h
rename to services/surfaceflinger/Scheduler/include/scheduler/FrameTime.h
index f7581fc..ed5c899 100644
--- a/libs/tracing_perfetto/include/trace_result.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/FrameTime.h
@@ -14,17 +14,13 @@
  * limitations under the License.
  */
 
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
+#pragma once
 
-namespace tracing_perfetto {
+#include <scheduler/Time.h>
 
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
+namespace android::scheduler {
+struct FrameTime {
+    TimePoint signalTime;
+    TimePoint expectedPresentTime;
 };
-
-}
-
-#endif  // TRACE_RESULT_H
+} // namespace android::scheduler
\ No newline at end of file
diff --git a/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp b/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
index badd21e..3ee1e54 100644
--- a/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
+++ b/services/surfaceflinger/Scheduler/src/FrameTargeter.cpp
@@ -14,13 +14,14 @@
  * limitations under the License.
  */
 
-#include <gui/TraceUtils.h>
-
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <scheduler/FrameTargeter.h>
 #include <scheduler/IVsyncSource.h>
+#include <utils/Log.h>
 
 namespace android::scheduler {
+using namespace std::chrono_literals;
 
 FrameTarget::FrameTarget(const std::string& displayLabel)
       : mFramePending("PrevFramePending " + displayLabel, false),
@@ -28,32 +29,53 @@
         mHwcFrameMissed("PrevHwcFrameMissed " + displayLabel, false),
         mGpuFrameMissed("PrevGpuFrameMissed " + displayLabel, false) {}
 
-TimePoint FrameTarget::pastVsyncTime(Period minFramePeriod) const {
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    const int shift = static_cast<int>(targetsVsyncsAhead<2>(minFramePeriod));
-    return mExpectedPresentTime - Period::fromNs(minFramePeriod.ns() << shift);
-}
-
-FenceTimePtr FrameTarget::presentFenceForPastVsync(Period minFramePeriod) const {
-    if (FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
-        return pastVsyncTimePtr();
+std::pair<bool /* wouldBackpressure */, FrameTarget::PresentFence>
+FrameTarget::expectedSignaledPresentFence(Period vsyncPeriod, Period minFramePeriod) const {
+    if (!FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
+        const size_t i = static_cast<size_t>(targetsVsyncsAhead<2>(minFramePeriod));
+        return {true, mPresentFencesLegacy[i]};
     }
-    const size_t i = static_cast<size_t>(targetsVsyncsAhead<2>(minFramePeriod));
-    return mPresentFences[i].fenceTime;
+
+    bool wouldBackpressure = true;
+    auto expectedPresentTime = mExpectedPresentTime;
+    for (size_t i = mPresentFences.size(); i != 0; --i) {
+        const auto& fence = mPresentFences[i - 1];
+
+        if (fence.expectedPresentTime + minFramePeriod < expectedPresentTime - vsyncPeriod / 2) {
+            wouldBackpressure = false;
+        }
+
+        if (fence.expectedPresentTime <= mFrameBeginTime) {
+            return {wouldBackpressure, fence};
+        }
+
+        expectedPresentTime = fence.expectedPresentTime;
+    }
+    return {wouldBackpressure, PresentFence{}};
 }
 
-bool FrameTarget::wouldPresentEarly(Period minFramePeriod) const {
-    // TODO(b/241285475): Since this is called during `composite`, the calls to `targetsVsyncsAhead`
-    // should use `TimePoint::now()` in case of delays since `mFrameBeginTime`.
-
-    // TODO(b/267315508): Generalize to N VSYNCs.
-    const bool allowNVsyncs = FlagManager::getInstance().allow_n_vsyncs_in_targeter();
-    if (!allowNVsyncs && targetsVsyncsAhead<3>(minFramePeriod)) {
+bool FrameTarget::wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const {
+    if (targetsVsyncsAhead<3>(minFramePeriod)) {
         return true;
     }
 
-    const auto fence = presentFenceForPastVsync(minFramePeriod);
-    return fence->isValid() && fence->getSignalTime() != Fence::SIGNAL_TIME_PENDING;
+    const auto [wouldBackpressure, fence] =
+            expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
+
+    return !wouldBackpressure ||
+            (fence.fenceTime->isValid() &&
+             fence.fenceTime->getSignalTime() != Fence::SIGNAL_TIME_PENDING);
+}
+
+const FenceTimePtr& FrameTarget::presentFenceForPreviousFrame() const {
+    if (FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
+        if (mPresentFences.size() > 0) {
+            return mPresentFences.back().fenceTime;
+        }
+        return FenceTime::NO_FENCE;
+    }
+
+    return mPresentFencesLegacy.front().fenceTime;
 }
 
 void FrameTargeter::beginFrame(const BeginFrameArgs& args, const IVsyncSource& vsyncSource) {
@@ -87,27 +109,39 @@
     }
 
     if (!mSupportsExpectedPresentTime) {
-        mEarliestPresentTime = computeEarliestPresentTime(minFramePeriod, args.hwcMinWorkDuration);
+        mEarliestPresentTime =
+                computeEarliestPresentTime(vsyncPeriod, minFramePeriod, args.hwcMinWorkDuration);
     }
 
-    ATRACE_FORMAT("%s %" PRId64 " vsyncIn %.2fms%s", __func__, ftl::to_underlying(args.vsyncId),
-                  ticks<std::milli, float>(mExpectedPresentTime - TimePoint::now()),
-                  mExpectedPresentTime == args.expectedVsyncTime ? "" : " (adjusted)");
+    SFTRACE_FORMAT("%s %" PRId64 " vsyncIn %.2fms%s", __func__, ftl::to_underlying(args.vsyncId),
+                   ticks<std::milli, float>(mExpectedPresentTime - TimePoint::now()),
+                   mExpectedPresentTime == args.expectedVsyncTime ? "" : " (adjusted)");
 
-    const FenceTimePtr& pastPresentFence = presentFenceForPastVsync(minFramePeriod);
+    const auto [wouldBackpressure, fence] =
+            expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
 
     // In cases where the present fence is about to fire, give it a small grace period instead of
     // giving up on the frame.
-    //
-    // TODO(b/280667110): The grace period should depend on `sfWorkDuration` and `vsyncPeriod` being
-    // approximately equal, not whether backpressure propagation is enabled.
-    const int graceTimeForPresentFenceMs = static_cast<int>(
-            mBackpressureGpuComposition || !mCompositionCoverage.test(CompositionCoverage::Gpu));
+    const int graceTimeForPresentFenceMs = [&] {
+        const bool considerBackpressure =
+                mBackpressureGpuComposition || !mCompositionCoverage.test(CompositionCoverage::Gpu);
+
+        if (!FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
+            return static_cast<int>(considerBackpressure);
+        }
+
+        if (!wouldBackpressure || !considerBackpressure) {
+            return 0;
+        }
+
+        return static_cast<int>((std::abs(fence.expectedPresentTime.ns() - mFrameBeginTime.ns()) <=
+                                 Duration(1ms).ns()));
+    }();
 
     // Pending frames may trigger backpressure propagation.
     const auto& isFencePending = *isFencePendingFuncPtr;
-    mFramePending = pastPresentFence != FenceTime::NO_FENCE &&
-            isFencePending(pastPresentFence, graceTimeForPresentFenceMs);
+    mFramePending = fence.fenceTime != FenceTime::NO_FENCE &&
+            isFencePending(fence.fenceTime, graceTimeForPresentFenceMs);
 
     // A frame is missed if the prior frame is still pending. If no longer pending, then we still
     // count the frame as missed if the predicted present time was further in the past than when the
@@ -115,9 +149,10 @@
     // than a typical frame duration, but should not be so small that it reports reasonable drift as
     // a missed frame.
     mFrameMissed = mFramePending || [&] {
-        const nsecs_t pastPresentTime = pastPresentFence->getSignalTime();
+        const nsecs_t pastPresentTime = fence.fenceTime->getSignalTime();
         if (pastPresentTime < 0) return false;
-        mLastSignaledFrameTime = TimePoint::fromNs(pastPresentTime);
+        mLastSignaledFrameTime = {.signalTime = TimePoint::fromNs(pastPresentTime),
+                                  .expectedPresentTime = fence.expectedPresentTime};
         const nsecs_t frameMissedSlop = vsyncPeriod.ns() / 2;
         return lastScheduledPresentTime.ns() < pastPresentTime - frameMissedSlop;
     }();
@@ -128,11 +163,14 @@
     if (mFrameMissed) mFrameMissedCount++;
     if (mHwcFrameMissed) mHwcFrameMissedCount++;
     if (mGpuFrameMissed) mGpuFrameMissedCount++;
+
+    mWouldBackpressureHwc = mFramePending && wouldBackpressure;
 }
 
-std::optional<TimePoint> FrameTargeter::computeEarliestPresentTime(Period minFramePeriod,
+std::optional<TimePoint> FrameTargeter::computeEarliestPresentTime(Period vsyncPeriod,
+                                                                   Period minFramePeriod,
                                                                    Duration hwcMinWorkDuration) {
-    if (wouldPresentEarly(minFramePeriod)) {
+    if (wouldPresentEarly(vsyncPeriod, minFramePeriod)) {
         return previousFrameVsyncTime(minFramePeriod) - hwcMinWorkDuration;
     }
     return {};
@@ -151,8 +189,8 @@
     if (FlagManager::getInstance().allow_n_vsyncs_in_targeter()) {
         addFence(std::move(presentFence), presentFenceTime, mExpectedPresentTime);
     } else {
-        mPresentFences[1] = mPresentFences[0];
-        mPresentFences[0] = {std::move(presentFence), presentFenceTime, mExpectedPresentTime};
+        mPresentFencesLegacy[1] = mPresentFencesLegacy[0];
+        mPresentFencesLegacy[0] = {std::move(presentFence), presentFenceTime, mExpectedPresentTime};
     }
     return presentFenceTime;
 }
@@ -165,7 +203,7 @@
 }
 
 bool FrameTargeter::isFencePending(const FenceTimePtr& fence, int graceTimeMs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const status_t status = fence->wait(graceTimeMs);
 
     // This is the same as Fence::Status::Unsignaled, but it saves a call to getStatus,
diff --git a/services/surfaceflinger/Scheduler/src/Timer.cpp b/services/surfaceflinger/Scheduler/src/Timer.cpp
index eeb9c60..20c58eb 100644
--- a/services/surfaceflinger/Scheduler/src/Timer.cpp
+++ b/services/surfaceflinger/Scheduler/src/Timer.cpp
@@ -24,10 +24,10 @@
 #include <sys/timerfd.h>
 #include <sys/unistd.h>
 
+#include <common/trace.h>
 #include <ftl/concat.h>
 #include <ftl/enum.h>
 #include <log/log.h>
-#include <utils/Trace.h>
 
 #include <scheduler/Timer.h>
 
@@ -188,9 +188,9 @@
         int nfds = epoll_wait(mEpollFd, events, DispatchType::MAX_DISPATCH_TYPE, -1);
 
         setDebugState(DebugState::Running);
-        if (ATRACE_ENABLED()) {
+        if (SFTRACE_ENABLED()) {
             ftl::Concat trace("TimerIteration #", iteration++);
-            ATRACE_NAME(trace.c_str());
+            SFTRACE_NAME(trace.c_str());
         }
 
         if (nfds == -1) {
diff --git a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
index 5448eec..6f4e1f1 100644
--- a/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
+++ b/services/surfaceflinger/Scheduler/tests/FrameTargeterTest.cpp
@@ -53,8 +53,13 @@
 
     const auto& target() const { return mTargeter.target(); }
 
-    bool wouldPresentEarly(Period minFramePeriod) const {
-        return target().wouldPresentEarly(minFramePeriod);
+    bool wouldPresentEarly(Period vsyncPeriod, Period minFramePeriod) const {
+        return target().wouldPresentEarly(vsyncPeriod, minFramePeriod);
+    }
+
+    std::pair<bool /*wouldBackpressure*/, FrameTarget::PresentFence> expectedSignaledPresentFence(
+            Period vsyncPeriod, Period minFramePeriod) const {
+        return target().expectedSignaledPresentFence(vsyncPeriod, minFramePeriod);
     }
 
     struct Frame {
@@ -169,7 +174,6 @@
 }
 
 TEST_F(FrameTargeterTest, recallsPastVsync) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{111};
     TimePoint frameBeginTime(1000ms);
     constexpr Fps kRefreshRate = 60_Hz;
@@ -177,16 +181,72 @@
     constexpr Duration kFrameDuration = 13ms;
 
     for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
-        const auto fence = frame.end();
+        FenceTimePtr fence;
+        {
+            Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
+                        kRefreshRate);
+            fence = frame.end();
+        }
 
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), fence);
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        ASSERT_TRUE(wouldBackpressure);
+        EXPECT_EQ(presentFence.fenceTime, fence);
+    }
+}
+
+TEST_F(FrameTargeterTest, wouldBackpressureAfterTime) {
+    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
+    VsyncId vsyncId{111};
+    TimePoint frameBeginTime(1000ms);
+    constexpr Fps kRefreshRate = 60_Hz;
+    constexpr Period kPeriod = kRefreshRate.getPeriod();
+    constexpr Duration kFrameDuration = 13ms;
+
+    { Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate); }
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_TRUE(wouldBackpressure);
+    }
+    {
+        frameBeginTime += kPeriod;
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_FALSE(wouldBackpressure);
+    }
+}
+
+TEST_F(FrameTargeterTest, wouldBackpressureAfterTimeLegacy) {
+    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
+    VsyncId vsyncId{111};
+    TimePoint frameBeginTime(1000ms);
+    constexpr Fps kRefreshRate = 60_Hz;
+    constexpr Period kPeriod = kRefreshRate.getPeriod();
+    constexpr Duration kFrameDuration = 13ms;
+
+    { Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate); }
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_TRUE(wouldBackpressure);
+    }
+    {
+        frameBeginTime += kPeriod;
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        const auto [wouldBackpressure, presentFence] =
+                expectedSignaledPresentFence(kPeriod, kPeriod);
+        EXPECT_TRUE(wouldBackpressure);
     }
 }
 
 TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{222};
     TimePoint frameBeginTime(2000ms);
     constexpr Fps kRefreshRate = 120_Hz;
@@ -194,101 +254,66 @@
     constexpr Duration kFrameDuration = 10ms;
 
     FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+    FenceTimePtr currentFence = FenceTime::NO_FENCE;
     for (int n = 5; n-- > 0;) {
         Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
-        const auto fence = frame.end();
-
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), previousFence);
-
-        previousFence = fence;
+        EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, previousFence);
+        previousFence = currentFence;
+        currentFence = frame.end();
     }
 }
 
-TEST_F(FrameTargeterTest, recallsPastNVsyncTwoVsyncsAhead) {
+TEST_F(FrameTargeterTest, recallsPastVsyncFiveVsyncsAhead) {
     SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
+
     VsyncId vsyncId{222};
     TimePoint frameBeginTime(2000ms);
     constexpr Fps kRefreshRate = 120_Hz;
     constexpr Period kPeriod = kRefreshRate.getPeriod();
-    constexpr Duration kFrameDuration = 10ms;
+    constexpr Duration kFrameDuration = 40ms;
 
-    FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+    FenceTimePtr firstFence = FenceTime::NO_FENCE;
     for (int n = 5; n-- > 0;) {
         Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
         const auto fence = frame.end();
-
-        const auto pastVsyncTime = frameBeginTime + kFrameDuration - 2 * kPeriod;
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), pastVsyncTime);
-        EXPECT_EQ(target().presentFenceForPastVsync(kFrameDuration), previousFence);
-
-        frameBeginTime += kPeriod;
-        previousFence = fence;
+        if (firstFence == FenceTime::NO_FENCE) {
+            firstFence = fence;
+        }
     }
+
+    Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+    EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, firstFence);
 }
 
 TEST_F(FrameTargeterTest, recallsPastVsyncTwoVsyncsAheadVrr) {
     SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
 
     VsyncId vsyncId{222};
     TimePoint frameBeginTime(2000ms);
     constexpr Fps kRefreshRate = 120_Hz;
-    constexpr Fps kPeakRefreshRate = 240_Hz;
+    constexpr Fps kVsyncRate = 240_Hz;
     constexpr Period kPeriod = kRefreshRate.getPeriod();
+    constexpr Period kVsyncPeriod = kVsyncRate.getPeriod();
     constexpr Duration kFrameDuration = 10ms;
 
     FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
+    FenceTimePtr currentFence = FenceTime::NO_FENCE;
     for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
-                    kPeakRefreshRate);
-        const auto fence = frame.end();
-
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), frameBeginTime + kFrameDuration - 2 * kPeriod);
-        EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), previousFence);
-
-        previousFence = fence;
-    }
-}
-
-TEST_F(FrameTargeterTest, recallsPastNVsyncTwoVsyncsAheadVrr) {
-    SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
-
-    VsyncId vsyncId{222};
-    TimePoint frameBeginTime(2000ms);
-    constexpr Fps kRefreshRate = 120_Hz;
-    constexpr Fps kPeakRefreshRate = 240_Hz;
-    constexpr Period kPeriod = kRefreshRate.getPeriod();
-    constexpr Duration kFrameDuration = 10ms;
-
-    FenceTimePtr previousFence = FenceTime::NO_FENCE;
-
-    for (int n = 5; n-- > 0;) {
-        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate,
-                    kPeakRefreshRate);
-        const auto fence = frame.end();
-
-        const auto pastVsyncTime = frameBeginTime + kFrameDuration - 2 * kPeriod;
-        EXPECT_EQ(target().pastVsyncTime(kPeriod), pastVsyncTime);
-        EXPECT_EQ(target().presentFenceForPastVsync(kFrameDuration), previousFence);
-
-        frameBeginTime += kPeriod;
-        previousFence = fence;
+        Frame frame(this, vsyncId++, frameBeginTime, kFrameDuration, kRefreshRate, kRefreshRate);
+        EXPECT_EQ(expectedSignaledPresentFence(kVsyncPeriod, kPeriod).second.fenceTime,
+                  previousFence);
+        previousFence = currentFence;
+        currentFence = frame.end();
     }
 }
 
 TEST_F(FrameTargeterTest, doesNotDetectEarlyPresentIfNoFence) {
     constexpr Period kPeriod = (60_Hz).getPeriod();
-    EXPECT_EQ(target().presentFenceForPastVsync(kPeriod), FenceTime::NO_FENCE);
-    EXPECT_FALSE(wouldPresentEarly(kPeriod));
+    EXPECT_EQ(expectedSignaledPresentFence(kPeriod, kPeriod).second.fenceTime, FenceTime::NO_FENCE);
+    EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
 }
 
 TEST_F(FrameTargeterTest, detectsEarlyPresent) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{333};
     TimePoint frameBeginTime(3000ms);
     constexpr Fps kRefreshRate = 60_Hz;
@@ -296,20 +321,57 @@
 
     // The target is not early while past present fences are pending.
     for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-        EXPECT_FALSE(wouldPresentEarly(kPeriod));
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
         EXPECT_FALSE(target().earliestPresentTime());
     }
 
     // The target is early if the past present fence was signaled.
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
 
     Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
     // `finalFrame` would present early, so it has an earliest present time.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
+    ASSERT_NE(std::nullopt, target().earliestPresentTime());
+    EXPECT_EQ(*target().earliestPresentTime(),
+              target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
+}
+
+TEST_F(FrameTargeterTest, detectsEarlyPresentAfterLongPeriod) {
+    VsyncId vsyncId{333};
+    TimePoint frameBeginTime(3000ms);
+    constexpr Fps kRefreshRate = 60_Hz;
+    constexpr Period kPeriod = kRefreshRate.getPeriod();
+
+    // The target is not early while past present fences are pending.
+    for (int n = 3; n-- > 0;) {
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
+        EXPECT_FALSE(target().earliestPresentTime());
+    }
+
+    // The target is early if the past present fence was signaled.
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
+
+    frameBeginTime += 10 * kPeriod;
+
+    Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+
+    // `finalFrame` would present early, so it has an earliest present time.
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     ASSERT_NE(std::nullopt, target().earliestPresentTime());
     EXPECT_EQ(*target().earliestPresentTime(),
               target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
@@ -318,7 +380,6 @@
 // Same as `detectsEarlyPresent`, above, but verifies that we do not set an earliest present time
 // when there is expected present time support.
 TEST_F(FrameTargeterWithExpectedPresentSupportTest, detectsEarlyPresent) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{333};
     TimePoint frameBeginTime(3000ms);
     constexpr Fps kRefreshRate = 60_Hz;
@@ -326,26 +387,30 @@
 
     // The target is not early while past present fences are pending.
     for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-        EXPECT_FALSE(wouldPresentEarly(kPeriod));
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
         EXPECT_FALSE(target().earliestPresentTime());
     }
 
     // The target is early if the past present fence was signaled.
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
 
     Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
     // `finalFrame` would present early, but we have expected present time support, so it has no
     // earliest present time.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     ASSERT_EQ(std::nullopt, target().earliestPresentTime());
 }
 
 TEST_F(FrameTargeterTest, detectsEarlyPresentTwoVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     VsyncId vsyncId{444};
     TimePoint frameBeginTime(4000ms);
     constexpr Fps kRefreshRate = 120_Hz;
@@ -353,17 +418,21 @@
 
     // The target is not early while past present fences are pending.
     for (int n = 3; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-        EXPECT_FALSE(wouldPresentEarly(kPeriod));
+        {
+            const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
+        }
+        EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
         EXPECT_FALSE(target().earliestPresentTime());
     }
+    {
+        Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
-    const auto fence = frame.end();
-    fence->signalForTest(frameBeginTime.ns());
+        const auto fence = frame.end();
+        fence->signalForTest(frameBeginTime.ns());
+    }
 
     // The target is two VSYNCs ahead, so the past present fence is still pending.
-    EXPECT_FALSE(wouldPresentEarly(kPeriod));
+    EXPECT_FALSE(wouldPresentEarly(kPeriod, kPeriod));
     EXPECT_FALSE(target().earliestPresentTime());
 
     { const Frame frame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate); }
@@ -371,66 +440,21 @@
     Frame finalFrame(this, vsyncId++, frameBeginTime, 10ms, kRefreshRate, kRefreshRate);
 
     // The target is early if the past present fence was signaled.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     ASSERT_NE(std::nullopt, target().earliestPresentTime());
     EXPECT_EQ(*target().earliestPresentTime(),
               target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
 }
 
-TEST_F(FrameTargeterTest, detectsEarlyPresentNVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, true);
-    VsyncId vsyncId{444};
-    TimePoint frameBeginTime(4000ms);
-    Fps refreshRate = 120_Hz;
-    Period period = refreshRate.getPeriod();
-
-    // The target is not early while past present fences are pending.
-    for (int n = 5; n-- > 0;) {
-        const Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
-        EXPECT_FALSE(wouldPresentEarly(period));
-        EXPECT_FALSE(target().earliestPresentTime());
-    }
-
-    Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
-    auto fence = frame.end();
-    frameBeginTime += period;
-    fence->signalForTest(frameBeginTime.ns());
-
-    // The target is two VSYNCs ahead, so the past present fence is still pending.
-    EXPECT_FALSE(wouldPresentEarly(period));
-    EXPECT_FALSE(target().earliestPresentTime());
-
-    { const Frame frame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate); }
-
-    Frame oneEarlyPresentFrame(this, vsyncId++, frameBeginTime, 10ms, refreshRate, refreshRate);
-    // The target is early if the past present fence was signaled.
-    EXPECT_TRUE(wouldPresentEarly(period));
-    ASSERT_NE(std::nullopt, target().earliestPresentTime());
-    EXPECT_EQ(*target().earliestPresentTime(),
-              target().expectedPresentTime() - period - kHwcMinWorkDuration);
-
-    fence = oneEarlyPresentFrame.end();
-    frameBeginTime += period;
-    fence->signalForTest(frameBeginTime.ns());
-
-    // Change rate to track frame more than 2 vsyncs ahead
-    refreshRate = 144_Hz;
-    period = refreshRate.getPeriod();
-    Frame onePresentEarlyFrame(this, vsyncId++, frameBeginTime, 16ms, refreshRate, refreshRate);
-    // The target is not early as last frame as the past frame is tracked for pending.
-    EXPECT_FALSE(wouldPresentEarly(period));
-}
-
 TEST_F(FrameTargeterTest, detectsEarlyPresentThreeVsyncsAhead) {
-    SET_FLAG_FOR_TEST(flags::allow_n_vsyncs_in_targeter, false);
     TimePoint frameBeginTime(5000ms);
     constexpr Fps kRefreshRate = 144_Hz;
     constexpr Period kPeriod = kRefreshRate.getPeriod();
 
-    const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate, kRefreshRate);
+    { const Frame frame(this, VsyncId{555}, frameBeginTime, 16ms, kRefreshRate, kRefreshRate); }
 
     // The target is more than two VSYNCs ahead, but present fences are not tracked that far back.
-    EXPECT_TRUE(wouldPresentEarly(kPeriod));
+    EXPECT_TRUE(wouldPresentEarly(kPeriod, kPeriod));
     EXPECT_TRUE(target().earliestPresentTime());
     EXPECT_EQ(*target().earliestPresentTime(),
               target().expectedPresentTime() - kPeriod - kHwcMinWorkDuration);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index fcead9f..9be9fee 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -42,6 +42,7 @@
 #include <binder/PermissionCache.h>
 #include <com_android_graphics_surfaceflinger_flags.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <compositionengine/CompositionEngine.h>
 #include <compositionengine/CompositionRefreshArgs.h>
 #include <compositionengine/Display.h>
@@ -71,9 +72,8 @@
 #include <gui/LayerState.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
-#include <gui/TraceUtils.h>
 #include <hidl/ServiceManagement.h>
-#include <layerproto/LayerProtoParser.h>
+#include <layerproto/LayerProtoHeader.h>
 #include <linux/sched/types.h>
 #include <log/log.h>
 #include <private/android_filesystem_config.h>
@@ -143,6 +143,7 @@
 #include "FrontEnd/LayerLog.h"
 #include "FrontEnd/LayerSnapshot.h"
 #include "HdrLayerInfoReporter.h"
+#include "Jank/JankTracker.h"
 #include "Layer.h"
 #include "LayerProtoHelper.h"
 #include "LayerRenderArea.h"
@@ -204,8 +205,6 @@
 using ui::DisplayPrimaries;
 using ui::RenderIntent;
 
-using KernelIdleTimerController = scheduler::RefreshRateSelector::KernelIdleTimerController;
-
 namespace hal = android::hardware::graphics::composer::hal;
 
 namespace {
@@ -373,8 +372,6 @@
 const String16 sInternalSystemWindow("android.permission.INTERNAL_SYSTEM_WINDOW");
 const String16 sWakeupSurfaceFlinger("android.permission.WAKEUP_SURFACE_FLINGER");
 
-const char* KERNEL_IDLE_TIMER_PROP = "graphics.display.kernel_idle_timer.enabled";
-
 // ---------------------------------------------------------------------------
 int64_t SurfaceFlinger::dispSyncPresentTimeOffset;
 bool SurfaceFlinger::useHwcForRgbToYuv;
@@ -433,7 +430,7 @@
 }
 
 SurfaceFlinger::SurfaceFlinger(Factory& factory) : SurfaceFlinger(factory, SkipInitialization) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGI("SurfaceFlinger is starting");
 
     hasSyncFramework = running_without_sync_framework(true);
@@ -533,9 +530,6 @@
 
     mIgnoreHdrCameraLayers = ignore_hdr_camera_layers(false);
 
-    mLayerLifecycleManagerEnabled =
-            base::GetBoolProperty("persist.debug.sf.enable_layer_lifecycle_manager"s, true);
-
     // These are set by the HWC implementation to indicate that they will use the workarounds.
     mIsHotplugErrViaNegVsync =
             base::GetBoolProperty("debug.sf.hwc_hotplug_error_via_neg_vsync"s, false);
@@ -728,6 +722,7 @@
     mBootFinished = true;
     FlagManager::getMutableInstance().markBootCompleted();
 
+    ::tracing_perfetto::registerWithPerfetto();
     mInitBootPropsFuture.wait();
     mRenderEnginePrimeCacheFuture.wait();
 
@@ -854,13 +849,15 @@
     auto const algorithm = base::GetProperty(PROPERTY_DEBUG_RENDERENGINE_BLUR_ALGORITHM, "");
     if (algorithm == "gaussian") {
         return renderengine::RenderEngine::BlurAlgorithm::GAUSSIAN;
+    } else if (algorithm == "kawase2") {
+        return renderengine::RenderEngine::BlurAlgorithm::KAWASE_DUAL_FILTER;
     } else {
         return renderengine::RenderEngine::BlurAlgorithm::KAWASE;
     }
 }
 
 void SurfaceFlinger::init() FTL_FAKE_GUARD(kMainThreadContext) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGI(  "SurfaceFlinger's main thread ready to run. "
             "Initializing graphics H/W...");
     addTransactionReadyFilters();
@@ -912,9 +909,11 @@
     LOG_ALWAYS_FATAL_IF(!configureLocked(),
                         "Initial display configuration failed: HWC did not hotplug");
 
+    mActiveDisplayId = getPrimaryDisplayIdLocked();
+
     // Commit primary display.
     sp<const DisplayDevice> display;
-    if (const auto indexOpt = mCurrentState.getDisplayIndex(getPrimaryDisplayIdLocked())) {
+    if (const auto indexOpt = mCurrentState.getDisplayIndex(mActiveDisplayId)) {
         const auto& displays = mCurrentState.displays;
 
         const auto& token = displays.keyAt(*indexOpt);
@@ -1312,7 +1311,7 @@
     const auto mode = desiredMode.mode;
     const auto displayId = mode.modePtr->getPhysicalDisplayId();
 
-    ATRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
+    SFTRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
 
     const bool emitEvent = desiredMode.emitEvent;
 
@@ -1355,7 +1354,7 @@
             }
 
             if (emitEvent) {
-                dispatchDisplayModeChangeEvent(displayId, mode);
+                mScheduler->onDisplayModeChanged(displayId, mode);
             }
             break;
         case DesiredModeAction::None:
@@ -1365,7 +1364,7 @@
 
 status_t SurfaceFlinger::setActiveModeFromBackdoor(const sp<display::DisplayToken>& displayToken,
                                                    DisplayModeId modeId, Fps minFps, Fps maxFps) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!displayToken) {
         return BAD_VALUE;
@@ -1417,7 +1416,7 @@
 // TODO: b/241285876 - Restore thread safety analysis once mStateLock below is unconditional.
 [[clang::no_thread_safety_analysis]]
 void SurfaceFlinger::finalizeDisplayModeChange(PhysicalDisplayId displayId) {
-    ATRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
+    SFTRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
 
     const auto pendingModeOpt = mDisplayModeController.getPendingMode(displayId);
     if (!pendingModeOpt) {
@@ -1452,7 +1451,7 @@
     }
 
     if (pendingModeOpt->emitEvent) {
-        dispatchDisplayModeChangeEvent(displayId, activeMode);
+        mScheduler->onDisplayModeChanged(displayId, activeMode);
     }
 }
 
@@ -1481,9 +1480,7 @@
 }
 
 void SurfaceFlinger::initiateDisplayModeChanges() {
-    ATRACE_CALL();
-
-    std::optional<PhysicalDisplayId> displayToUpdateImmediately;
+    SFTRACE_CALL();
 
     for (const auto& [displayId, physical] : mPhysicalDisplays) {
         auto desiredModeOpt = mDisplayModeController.getDesiredMode(displayId);
@@ -1538,21 +1535,14 @@
         if (outTimeline.refreshRequired) {
             scheduleComposite(FrameHint::kNone);
         } else {
-            // TODO(b/255635711): Remove `displayToUpdateImmediately` to `finalizeDisplayModeChange`
-            // for all displays. This was only needed when the loop iterated over `mDisplays` rather
-            // than `mPhysicalDisplays`.
-            displayToUpdateImmediately = displayId;
-        }
-    }
+            // HWC has requested to apply the mode change immediately rather than on the next frame.
+            finalizeDisplayModeChange(displayId);
 
-    if (displayToUpdateImmediately) {
-        const auto displayId = *displayToUpdateImmediately;
-        finalizeDisplayModeChange(displayId);
-
-        const auto desiredModeOpt = mDisplayModeController.getDesiredMode(displayId);
-        if (desiredModeOpt &&
-            mDisplayModeController.getActiveMode(displayId) == desiredModeOpt->mode) {
-            applyActiveMode(displayId);
+            const auto desiredModeOpt = mDisplayModeController.getDesiredMode(displayId);
+            if (desiredModeOpt &&
+                mDisplayModeController.getActiveMode(displayId) == desiredModeOpt->mode) {
+                applyActiveMode(displayId);
+            }
         }
     }
 }
@@ -1560,7 +1550,7 @@
 void SurfaceFlinger::disableExpensiveRendering() {
     const char* const whence = __func__;
     auto future = mScheduler->schedule([=, this]() FTL_FAKE_GUARD(mStateLock) {
-        ATRACE_NAME(whence);
+        SFTRACE_NAME(whence);
         if (mPowerAdvisor->isUsingExpensiveRendering()) {
             for (const auto& [_, display] : mDisplays) {
                 constexpr bool kDisable = false;
@@ -2171,12 +2161,12 @@
     return mScheduler->createDisplayEventConnection(cycle, eventRegistration, layerHandle);
 }
 
-void SurfaceFlinger::scheduleCommit(FrameHint hint) {
+void SurfaceFlinger::scheduleCommit(FrameHint hint, Duration workDurationSlack) {
     if (hint == FrameHint::kActive) {
         mScheduler->resetIdleTimer();
     }
     mPowerAdvisor->notifyDisplayUpdateImminentAndCpuReset();
-    mScheduler->scheduleFrame();
+    mScheduler->scheduleFrame(workDurationSlack);
 }
 
 void SurfaceFlinger::scheduleComposite(FrameHint hint) {
@@ -2193,14 +2183,6 @@
     static_cast<void>(mScheduler->schedule([this] { sample(); }));
 }
 
-nsecs_t SurfaceFlinger::getVsyncPeriodFromHWC() const {
-    if (const auto display = getDefaultDisplayDeviceLocked()) {
-        return display->getVsyncPeriodFromHWC();
-    }
-
-    return 0;
-}
-
 void SurfaceFlinger::onComposerHalVsync(hal::HWDisplayId hwcDisplayId, int64_t timestamp,
                                         std::optional<hal::VsyncPeriodNanos> vsyncPeriod) {
     if (FlagManager::getInstance().connected_display() && timestamp < 0 &&
@@ -2225,9 +2207,9 @@
         }
     }
 
-    ATRACE_NAME(vsyncPeriod
-                        ? ftl::Concat(__func__, ' ', hwcDisplayId, ' ', *vsyncPeriod, "ns").c_str()
-                        : ftl::Concat(__func__, ' ', hwcDisplayId).c_str());
+    SFTRACE_NAME(vsyncPeriod
+                         ? ftl::Concat(__func__, ' ', hwcDisplayId, ' ', *vsyncPeriod, "ns").c_str()
+                         : ftl::Concat(__func__, ' ', hwcDisplayId).c_str());
 
     Mutex::Autolock lock(mStateLock);
     if (const auto displayIdOpt = getHwComposer().onVsync(hwcDisplayId, timestamp)) {
@@ -2285,12 +2267,12 @@
 }
 
 void SurfaceFlinger::onComposerHalVsyncIdle(hal::HWDisplayId) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     mScheduler->forceNextResync();
 }
 
 void SurfaceFlinger::onRefreshRateChangedDebug(const RefreshRateChangedDebugData& data) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     const char* const whence = __func__;
     static_cast<void>(mScheduler->schedule([=, this]() FTL_FAKE_GUARD(mStateLock) FTL_FAKE_GUARD(
                                                    kMainThreadContext) {
@@ -2299,7 +2281,7 @@
                 const Fps refreshRate = Fps::fromPeriodNsecs(
                         getHwComposer().getComposer()->isVrrSupported() ? data.refreshPeriodNanos
                                                                         : data.vsyncPeriodNanos);
-                ATRACE_FORMAT("%s refresh rate = %d", whence, refreshRate.getIntValue());
+                SFTRACE_FORMAT("%s refresh rate = %d", whence, refreshRate.getIntValue());
 
                 const auto renderRate = mDisplayModeController.getActiveMode(*displayIdOpt).fps;
                 constexpr bool kSetByHwc = true;
@@ -2316,37 +2298,6 @@
     }
 }
 
-bool SurfaceFlinger::updateLayerSnapshotsLegacy(VsyncId vsyncId, nsecs_t frameTimeNs,
-                                                bool flushTransactions,
-                                                bool& outTransactionsAreEmpty) {
-    ATRACE_CALL();
-    frontend::Update update;
-    if (flushTransactions) {
-        update = flushLifecycleUpdates();
-        if (mTransactionTracing) {
-            mTransactionTracing->addCommittedTransactions(ftl::to_underlying(vsyncId), frameTimeNs,
-                                                          update, mFrontEndDisplayInfos,
-                                                          mFrontEndDisplayInfosChanged);
-        }
-    }
-
-    bool needsTraversal = false;
-    if (flushTransactions) {
-        needsTraversal |= commitMirrorDisplays(vsyncId);
-        needsTraversal |= commitCreatedLayers(vsyncId, update.layerCreatedStates);
-        needsTraversal |= applyTransactions(update.transactions, vsyncId);
-    }
-    outTransactionsAreEmpty = !needsTraversal;
-    const bool shouldCommit = (getTransactionFlags() & ~eTransactionFlushNeeded) || needsTraversal;
-    if (shouldCommit) {
-        commitTransactionsLegacy();
-    }
-
-    bool mustComposite = latchBuffers() || shouldCommit;
-    updateLayerGeometry();
-    return mustComposite;
-}
-
 void SurfaceFlinger::updateLayerHistory(nsecs_t now) {
     for (const auto& snapshot : mLayerSnapshotBuilder.getSnapshots()) {
         using Changes = frontend::RequestedLayerState::Changes;
@@ -2418,10 +2369,10 @@
 bool SurfaceFlinger::updateLayerSnapshots(VsyncId vsyncId, nsecs_t frameTimeNs,
                                           bool flushTransactions, bool& outTransactionsAreEmpty) {
     using Changes = frontend::RequestedLayerState::Changes;
-    ATRACE_CALL();
+    SFTRACE_CALL();
     frontend::Update update;
     if (flushTransactions) {
-        ATRACE_NAME("TransactionHandler:flushTransactions");
+        SFTRACE_NAME("TransactionHandler:flushTransactions");
         // Locking:
         // 1. to prevent onHandleDestroyed from being called while the state lock is held,
         // we must keep a copy of the transactions (specifically the composer
@@ -2473,7 +2424,7 @@
     mustComposite |= applyAndCommitDisplayTransactionStatesLocked(update.transactions);
 
     {
-        ATRACE_NAME("LayerSnapshotBuilder:update");
+        SFTRACE_NAME("LayerSnapshotBuilder:update");
         frontend::LayerSnapshotBuilder::Args
                 args{.root = mLayerHierarchyBuilder.getHierarchy(),
                      .layerLifecycleManager = mLayerLifecycleManager,
@@ -2514,7 +2465,7 @@
     }
 
     bool newDataLatched = false;
-    ATRACE_NAME("DisplayCallbackAndStatsUpdates");
+    SFTRACE_NAME("DisplayCallbackAndStatsUpdates");
     mustComposite |= applyTransactionsLocked(update.transactions, vsyncId);
     traverseLegacyLayers([&](Layer* layer) { layer->commitTransaction(); });
     const nsecs_t latchTime = systemTime();
@@ -2562,7 +2513,9 @@
         it->second->latchBufferImpl(unused, latchTime, bgColorOnly);
         newDataLatched = true;
 
-        mLayersWithQueuedFrames.emplace(it->second);
+        frontend::LayerSnapshot* snapshot = mLayerSnapshotBuilder.getSnapshot(it->second->sequence);
+        gui::GameMode gameMode = (snapshot) ? snapshot->gameMode : gui::GameMode::Unsupported;
+        mLayersWithQueuedFrames.emplace(it->second, gameMode);
         mLayersIdsWithQueuedFrames.emplace(it->second->sequence);
     }
 
@@ -2580,7 +2533,7 @@
     }
 
     {
-        ATRACE_NAME("LLM:commitChanges");
+        SFTRACE_NAME("LLM:commitChanges");
         mLayerLifecycleManager.commitChanges();
     }
 
@@ -2603,7 +2556,7 @@
     const scheduler::FrameTarget& pacesetterFrameTarget = *frameTargets.get(pacesetterId)->get();
 
     const VsyncId vsyncId = pacesetterFrameTarget.vsyncId();
-    ATRACE_NAME(ftl::Concat(__func__, ' ', ftl::to_underlying(vsyncId)).c_str());
+    SFTRACE_NAME(ftl::Concat(__func__, ' ', ftl::to_underlying(vsyncId)).c_str());
 
     if (pacesetterFrameTarget.didMissFrame()) {
         mTimeStats->incrementMissedFrames();
@@ -2630,13 +2583,16 @@
         }
     }
 
-    if (pacesetterFrameTarget.isFramePending()) {
+    if (pacesetterFrameTarget.wouldBackpressureHwc()) {
         if (mBackpressureGpuComposition || pacesetterFrameTarget.didMissHwcFrame()) {
             if (FlagManager::getInstance().vrr_config()) {
                 mScheduler->getVsyncSchedule()->getTracker().onFrameMissed(
                         pacesetterFrameTarget.expectedPresentTime());
             }
-            scheduleCommit(FrameHint::kNone);
+            const Duration slack = FlagManager::getInstance().allow_n_vsyncs_in_targeter()
+                    ? TimePoint::now() - pacesetterFrameTarget.frameBeginTime()
+                    : Duration::fromNs(0);
+            scheduleCommit(FrameHint::kNone, slack);
             return false;
         }
     }
@@ -2683,11 +2639,8 @@
 
         const bool flushTransactions = clearTransactionFlags(eTransactionFlushNeeded);
         bool transactionsAreEmpty = false;
-        if (mLayerLifecycleManagerEnabled) {
-            mustComposite |=
-                    updateLayerSnapshots(vsyncId, pacesetterFrameTarget.frameBeginTime().ns(),
-                                         flushTransactions, transactionsAreEmpty);
-        }
+        mustComposite |= updateLayerSnapshots(vsyncId, pacesetterFrameTarget.frameBeginTime().ns(),
+                                              flushTransactions, transactionsAreEmpty);
 
         // Tell VsyncTracker that we are going to present this frame before scheduling
         // setTransactionFlags which will schedule another SF frame. This was if the tracker
@@ -2721,9 +2674,7 @@
         mUpdateAttachedChoreographer = false;
 
         Mutex::Autolock lock(mStateLock);
-        mScheduler->chooseRefreshRateForContent(mLayerLifecycleManagerEnabled
-                                                        ? &mLayerHierarchyBuilder.getHierarchy()
-                                                        : nullptr,
+        mScheduler->chooseRefreshRateForContent(&mLayerHierarchyBuilder.getHierarchy(),
                                                 updateAttachedChoreographer);
 
         if (FlagManager::getInstance().connected_display()) {
@@ -2756,7 +2707,7 @@
             frameTargeters.get(pacesetterId)->get()->target();
 
     const VsyncId vsyncId = pacesetterTarget.vsyncId();
-    ATRACE_NAME(ftl::Concat(__func__, ' ', ftl::to_underlying(vsyncId)).c_str());
+    SFTRACE_NAME(ftl::Concat(__func__, ' ', ftl::to_underlying(vsyncId)).c_str());
 
     compositionengine::CompositionRefreshArgs refreshArgs;
     refreshArgs.powerCallback = this;
@@ -2793,16 +2744,12 @@
 
     const bool updateTaskMetadata = mCompositionEngine->getFeatureFlags().test(
             compositionengine::Feature::kSnapshotLayerMetadata);
-    if (updateTaskMetadata && (mVisibleRegionsDirty || mLayerMetadataSnapshotNeeded)) {
-        updateLayerMetadataSnapshot();
-        mLayerMetadataSnapshotNeeded = false;
-    }
 
     refreshArgs.bufferIdsToUncache = std::move(mBufferIdsToUncache);
 
     if (!FlagManager::getInstance().ce_fence_promise()) {
         refreshArgs.layersWithQueuedFrames.reserve(mLayersWithQueuedFrames.size());
-        for (auto& layer : mLayersWithQueuedFrames) {
+        for (auto& [layer, _] : mLayersWithQueuedFrames) {
             if (const auto& layerFE = layer->getCompositionEngineLayerFE())
                 refreshArgs.layersWithQueuedFrames.push_back(layerFE);
         }
@@ -2844,7 +2791,7 @@
     constexpr bool kCursorOnly = false;
     const auto layers = moveSnapshotsToCompositionArgs(refreshArgs, kCursorOnly);
 
-    if (mLayerLifecycleManagerEnabled && !mVisibleRegionsDirty) {
+    if (!mVisibleRegionsDirty) {
         for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
             auto compositionDisplay = display->getCompositionDisplay();
             if (!compositionDisplay->getState().isEnabled) continue;
@@ -2878,7 +2825,7 @@
         }
 
         refreshArgs.layersWithQueuedFrames.reserve(mLayersWithQueuedFrames.size());
-        for (auto& layer : mLayersWithQueuedFrames) {
+        for (auto& [layer, _] : mLayersWithQueuedFrames) {
             if (const auto& layerFE = layer->getCompositionEngineLayerFE()) {
                 refreshArgs.layersWithQueuedFrames.push_back(layerFE);
                 // Some layers are not displayed and do not yet have a future release fence
@@ -2920,6 +2867,7 @@
         }
     }
 
+    SFTRACE_NAME("postComposition");
     mTimeStats->recordFrameDuration(pacesetterTarget.frameBeginTime().ns(), systemTime());
 
     // Send a power hint after presentation is finished.
@@ -2927,6 +2875,9 @@
         // Now that the current frame has been presented above, PowerAdvisor needs the present time
         // of the previous frame (whose fence is signaled by now) to determine how long the HWC had
         // waited on that fence to retire before presenting.
+        // TODO(b/355238809) `presentFenceForPreviousFrame` might not always be signaled (e.g. on
+        // devices
+        //  where HWC does not block on the previous present fence). Revise this assumtion.
         const auto& previousPresentFence = pacesetterTarget.presentFenceForPreviousFrame();
 
         mPowerAdvisor->setSfPresentTiming(TimePoint::fromNs(previousPresentFence->getSignalTime()),
@@ -3014,21 +2965,6 @@
     return resultsPerDisplay;
 }
 
-void SurfaceFlinger::updateLayerGeometry() {
-    ATRACE_CALL();
-
-    if (mVisibleRegionsDirty) {
-        computeLayerBounds();
-    }
-
-    for (auto& layer : mLayersPendingRefresh) {
-        Region visibleReg;
-        visibleReg.set(layer->getScreenBounds());
-        invalidateLayerStack(layer->getOutputFilter(), visibleReg);
-    }
-    mLayersPendingRefresh.clear();
-}
-
 bool SurfaceFlinger::isHdrLayer(const frontend::LayerSnapshot& snapshot) const {
     // Even though the camera layer may be using an HDR transfer function or otherwise be "HDR"
     // the device may need to avoid boosting the brightness as a result of these layers to
@@ -3099,7 +3035,7 @@
 void SurfaceFlinger::onCompositionPresented(PhysicalDisplayId pacesetterId,
                                             const scheduler::FrameTargeters& frameTargeters,
                                             nsecs_t presentStartTime) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     ui::PhysicalDisplayMap<PhysicalDisplayId, std::shared_ptr<FenceTime>> presentFences;
     ui::PhysicalDisplayMap<PhysicalDisplayId, const sp<Fence>> gpuCompositionDoneFences;
@@ -3195,10 +3131,10 @@
     }
     mLayersWithBuffersRemoved.clear();
 
-    for (const auto& layer: mLayersWithQueuedFrames) {
+    for (const auto& [layer, gameMode] : mLayersWithQueuedFrames) {
         layer->onCompositionPresented(pacesetterDisplay.get(),
                                       pacesetterGpuCompositionDoneFenceTime,
-                                      pacesetterPresentFenceTime, compositorTiming);
+                                      pacesetterPresentFenceTime, compositorTiming, gameMode);
         layer->releasePendingBuffer(presentTime.ns());
     }
 
@@ -3259,28 +3195,20 @@
                         }
                     };
 
-            if (mLayerLifecycleManagerEnabled) {
-                mLayerSnapshotBuilder.forEachVisibleSnapshot(
-                        [&, compositionDisplay = compositionDisplay](
-                                std::unique_ptr<frontend::LayerSnapshot>&
-                                        snapshot) FTL_FAKE_GUARD(kMainThreadContext) {
-                            auto it = mLegacyLayers.find(snapshot->sequence);
-                            LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
-                                                            "Couldnt find layer object for %s",
-                                                            snapshot->getDebugString().c_str());
-                            auto& legacyLayer = it->second;
-                            sp<LayerFE> layerFe =
-                                    legacyLayer->getCompositionEngineLayerFE(snapshot->path);
+            mLayerSnapshotBuilder.forEachVisibleSnapshot(
+                    [&, compositionDisplay = compositionDisplay](
+                            std::unique_ptr<frontend::LayerSnapshot>& snapshot)
+                            FTL_FAKE_GUARD(kMainThreadContext) {
+                                auto it = mLegacyLayers.find(snapshot->sequence);
+                                LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
+                                                                "Couldnt find layer object for %s",
+                                                                snapshot->getDebugString().c_str());
+                                auto& legacyLayer = it->second;
+                                sp<LayerFE> layerFe =
+                                        legacyLayer->getCompositionEngineLayerFE(snapshot->path);
 
-                            updateInfoFn(compositionDisplay, *snapshot, layerFe);
-                        });
-            } else {
-                mDrawingState.traverse([&, compositionDisplay = compositionDisplay](Layer* layer) {
-                    const auto layerFe = layer->getCompositionEngineLayerFE();
-                    const frontend::LayerSnapshot& snapshot = *layer->getLayerSnapshot();
-                    updateInfoFn(compositionDisplay, snapshot, layerFe);
-                });
-            }
+                                updateInfoFn(compositionDisplay, *snapshot, layerFe);
+                            });
             listener->dispatchHdrLayerInfo(info);
         }
     }
@@ -3326,9 +3254,8 @@
             if (!layer->hasTrustedPresentationListener()) {
                 return;
             }
-            const frontend::LayerSnapshot* snapshot = mLayerLifecycleManagerEnabled
-                    ? mLayerSnapshotBuilder.getSnapshot(layer->sequence)
-                    : layer->getLayerSnapshot();
+            const frontend::LayerSnapshot* snapshot =
+                    mLayerSnapshotBuilder.getSnapshot(layer->sequence);
             std::optional<const DisplayDevice*> displayOpt = std::nullopt;
             if (snapshot) {
                 displayOpt = layerStackToDisplay.get(snapshot->outputFilter.layerStack);
@@ -3340,48 +3267,18 @@
         });
     }
 
-    // Even though ATRACE_INT64 already checks if tracing is enabled, it doesn't prevent the
+    // Even though SFTRACE_INT64 already checks if tracing is enabled, it doesn't prevent the
     // side-effect of getTotalSize(), so we check that again here
-    if (ATRACE_ENABLED()) {
+    if (SFTRACE_ENABLED()) {
         // getTotalSize returns the total number of buffers that were allocated by SurfaceFlinger
-        ATRACE_INT64("Total Buffer Size", GraphicBufferAllocator::get().getTotalSize());
+        SFTRACE_INT64("Total Buffer Size", GraphicBufferAllocator::get().getTotalSize());
     }
 
     logFrameStats(presentTime);
 }
 
-FloatRect SurfaceFlinger::getMaxDisplayBounds() {
-    const ui::Size maxSize = [this] {
-        ftl::FakeGuard guard(mStateLock);
-
-        // The LayerTraceGenerator tool runs without displays.
-        if (mDisplays.empty()) return ui::Size{5000, 5000};
-
-        return std::accumulate(mDisplays.begin(), mDisplays.end(), ui::kEmptySize,
-                               [](ui::Size size, const auto& pair) -> ui::Size {
-                                   const auto& display = pair.second;
-                                   return {std::max(size.getWidth(), display->getWidth()),
-                                           std::max(size.getHeight(), display->getHeight())};
-                               });
-    }();
-
-    // Ignore display bounds for now since they will be computed later. Use a large Rect bound
-    // to ensure it's bigger than an actual display will be.
-    const float xMax = maxSize.getWidth() * 10.f;
-    const float yMax = maxSize.getHeight() * 10.f;
-
-    return {-xMax, -yMax, xMax, yMax};
-}
-
-void SurfaceFlinger::computeLayerBounds() {
-    const FloatRect maxBounds = getMaxDisplayBounds();
-    for (const auto& layer : mDrawingState.layersSortedByZ) {
-        layer->computeBounds(maxBounds, ui::Transform(), 0.f /* shadowRadius */);
-    }
-}
-
 void SurfaceFlinger::commitTransactions() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     mDebugInTransaction = systemTime();
 
     // Here we're guaranteed that some transaction flags are set
@@ -3393,28 +3290,6 @@
     mDebugInTransaction = 0;
 }
 
-void SurfaceFlinger::commitTransactionsLegacy() {
-    ATRACE_CALL();
-
-    // Keep a copy of the drawing state (that is going to be overwritten
-    // by commitTransactionsLocked) outside of mStateLock so that the side
-    // effects of the State assignment don't happen with mStateLock held,
-    // which can cause deadlocks.
-    State drawingState(mDrawingState);
-
-    Mutex::Autolock lock(mStateLock);
-    mDebugInTransaction = systemTime();
-
-    // Here we're guaranteed that some transaction flags are set
-    // so we can call commitTransactionsLocked unconditionally.
-    // We clear the flags with mStateLock held to guarantee that
-    // mCurrentState won't change until the transaction is committed.
-    mScheduler->modulateVsync({}, &VsyncModulator::onTransactionCommit);
-    commitTransactionsLocked(clearTransactionFlags(eTransactionMask));
-
-    mDebugInTransaction = 0;
-}
-
 std::pair<DisplayModes, DisplayModePtr> SurfaceFlinger::loadDisplayModes(
         PhysicalDisplayId displayId) const {
     std::vector<HWComposer::HWCDisplayMode> hwcModes;
@@ -3673,7 +3548,12 @@
     state.physical = {.id = displayId,
                       .hwcDisplayId = hwcDisplayId,
                       .activeMode = std::move(activeMode)};
-    state.isSecure = connectionType == ui::DisplayConnectionType::Internal;
+    if (mIsHdcpViaNegVsync) {
+        state.isSecure = connectionType == ui::DisplayConnectionType::Internal;
+    } else {
+        // TODO(b/349703362): Remove this when HDCP aidl API becomes ready
+        state.isSecure = true; // All physical displays are currently considered secure.
+    }
     state.isProtected = true;
     state.displayName = std::move(info.name);
 
@@ -3697,16 +3577,6 @@
     mPhysicalDisplays.erase(displayId);
 }
 
-void SurfaceFlinger::dispatchDisplayModeChangeEvent(PhysicalDisplayId displayId,
-                                                    const scheduler::FrameRateMode& mode) {
-    // TODO(b/255635821): Merge code paths and move to Scheduler.
-    const auto onDisplayModeChanged = displayId == mActiveDisplayId
-            ? &scheduler::Scheduler::onPrimaryDisplayModeChanged
-            : &scheduler::Scheduler::onNonPrimaryDisplayModeChanged;
-
-    ((*mScheduler).*onDisplayModeChanged)(scheduler::Cycle::Render, mode);
-}
-
 sp<DisplayDevice> SurfaceFlinger::setupNewDisplayDeviceInternal(
         const wp<IBinder>& displayToken,
         std::shared_ptr<compositionengine::Display> compositionDisplay,
@@ -3782,7 +3652,7 @@
     if (const auto& physical = state.physical) {
         const auto& mode = *physical->activeMode;
         mDisplayModeController.setActiveMode(physical->id, mode.getId(), mode.getVsyncRate(),
-                                             mode.getVsyncRate());
+                                             mode.getPeakFps());
     }
 
     display->setLayerFilter(makeLayerFilterForDisplay(display->getId(), state.layerStack));
@@ -4048,13 +3918,6 @@
     // Commit display transactions.
     const bool displayTransactionNeeded = transactionFlags & eDisplayTransactionNeeded;
     mFrontEndDisplayInfosChanged = displayTransactionNeeded;
-    if (displayTransactionNeeded && !mLayerLifecycleManagerEnabled) {
-        processDisplayChangesLocked();
-        mFrontEndDisplayInfos.clear();
-        for (const auto& [_, display] : mDisplays) {
-            mFrontEndDisplayInfos.try_emplace(display->getLayerStack(), display->getFrontEndInfo());
-        }
-    }
     mForceTransactionDisplayChange = displayTransactionNeeded;
 
     if (mSomeChildrenChanged) {
@@ -4142,7 +4005,7 @@
     if (!mInputFlinger || (!mUpdateInputInfo && mInputWindowCommands.empty())) {
         return;
     }
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::vector<WindowInfo> windowInfos;
     std::vector<DisplayInfo> displayInfos;
@@ -4172,7 +4035,7 @@
                                                               std::move(mInputWindowCommands),
                                                       inputFlinger = mInputFlinger, this,
                                                       visibleWindowsChanged, vsyncId, frameTime]() {
-        ATRACE_NAME("BackgroundExecutor::updateInputFlinger");
+        SFTRACE_NAME("BackgroundExecutor::updateInputFlinger");
         if (updateWindowInfo) {
             mWindowInfosListenerInvoker
                     ->windowInfosChanged(gui::WindowInfosUpdate{std::move(windowInfos),
@@ -4235,23 +4098,10 @@
     outWindowInfos.reserve(sNumWindowInfos);
     sNumWindowInfos = 0;
 
-    if (mLayerLifecycleManagerEnabled) {
-        mLayerSnapshotBuilder.forEachInputSnapshot(
-                [&outWindowInfos](const frontend::LayerSnapshot& snapshot) {
-                    outWindowInfos.push_back(snapshot.inputInfo);
-                });
-    } else {
-        mDrawingState.traverseInReverseZOrder([&](Layer* layer) FTL_FAKE_GUARD(kMainThreadContext) {
-            if (!layer->needsInputInfo()) return;
-            const auto opt =
-                    mFrontEndDisplayInfos.get(layer->getLayerStack())
-                            .transform([](const frontend::DisplayInfo& info) {
-                                return Layer::InputDisplayArgs{&info.transform, info.isSecure};
-                            });
-
-            outWindowInfos.push_back(layer->fillInputInfo(opt.value_or(Layer::InputDisplayArgs{})));
-        });
-    }
+    mLayerSnapshotBuilder.forEachInputSnapshot(
+            [&outWindowInfos](const frontend::LayerSnapshot& snapshot) {
+                outWindowInfos.push_back(snapshot.inputInfo);
+            });
 
     sNumWindowInfos = outWindowInfos.size();
 
@@ -4285,7 +4135,7 @@
         return;
     }
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     // If this is called from the main thread mStateLock must be locked before
     // Currently the only way to call this function from the main thread is from
@@ -4310,25 +4160,14 @@
     }
 }
 
-void SurfaceFlinger::triggerOnFrameRateOverridesChanged() {
-    PhysicalDisplayId displayId = [&]() {
-        ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
-        return getDefaultDisplayDeviceLocked()->getPhysicalId();
-    }();
-
-    mScheduler->onFrameRateOverridesChanged(scheduler::Cycle::Render, displayId);
-}
-
 void SurfaceFlinger::notifyCpuLoadUp() {
     mPowerAdvisor->notifyCpuLoadUp();
 }
 
 void SurfaceFlinger::onChoreographerAttached() {
-    ATRACE_CALL();
-    if (mLayerLifecycleManagerEnabled) {
-        mUpdateAttachedChoreographer = true;
-        scheduleCommit(FrameHint::kNone);
-    }
+    SFTRACE_CALL();
+    mUpdateAttachedChoreographer = true;
+    scheduleCommit(FrameHint::kNone);
 }
 
 void SurfaceFlinger::onExpectedPresentTimePosted(TimePoint expectedPresentTime,
@@ -4552,7 +4391,7 @@
 }
 
 void SurfaceFlinger::doCommitTransactions() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!mLayersPendingRemoval.isEmpty()) {
         // Notify removed layers now that they can't be drawn from
@@ -4632,97 +4471,6 @@
     }
 }
 
-bool SurfaceFlinger::latchBuffers() {
-    ATRACE_CALL();
-
-    const nsecs_t latchTime = systemTime();
-
-    bool visibleRegions = false;
-    bool frameQueued = false;
-    bool newDataLatched = false;
-
-    // Store the set of layers that need updates. This set must not change as
-    // buffers are being latched, as this could result in a deadlock.
-    // Example: Two producers share the same command stream and:
-    // 1.) Layer 0 is latched
-    // 2.) Layer 0 gets a new frame
-    // 2.) Layer 1 gets a new frame
-    // 3.) Layer 1 is latched.
-    // Display is now waiting on Layer 1's frame, which is behind layer 0's
-    // second frame. But layer 0's second frame could be waiting on display.
-    mDrawingState.traverse([&](Layer* layer) {
-        if (layer->clearTransactionFlags(eTransactionNeeded) || mForceTransactionDisplayChange) {
-            const uint32_t flags = layer->doTransaction(0);
-            if (flags & Layer::eVisibleRegion) {
-                mVisibleRegionsDirty = true;
-            }
-        }
-
-        if (layer->hasReadyFrame() || layer->willReleaseBufferOnLatch()) {
-            frameQueued = true;
-            mLayersWithQueuedFrames.emplace(sp<Layer>::fromExisting(layer));
-        } else {
-            layer->useEmptyDamage();
-            if (!layer->hasBuffer()) {
-                // The last latch time is used to classify a missed frame as buffer stuffing
-                // instead of a missed frame. This is used to identify scenarios where we
-                // could not latch a buffer or apply a transaction due to backpressure.
-                // We only update the latch time for buffer less layers here, the latch time
-                // is updated for buffer layers when the buffer is latched.
-                layer->updateLastLatchTime(latchTime);
-            }
-        }
-    });
-    mForceTransactionDisplayChange = false;
-
-    // The client can continue submitting buffers for offscreen layers, but they will not
-    // be shown on screen. Therefore, we need to latch and release buffers of offscreen
-    // layers to ensure dequeueBuffer doesn't block indefinitely.
-    for (Layer* offscreenLayer : mOffscreenLayers) {
-        offscreenLayer->traverse(LayerVector::StateSet::Drawing,
-                                         [&](Layer* l) { l->latchAndReleaseBuffer(); });
-    }
-
-    if (!mLayersWithQueuedFrames.empty()) {
-        // mStateLock is needed for latchBuffer as LayerRejecter::reject()
-        // writes to Layer current state. See also b/119481871
-        Mutex::Autolock lock(mStateLock);
-
-        for (const auto& layer : mLayersWithQueuedFrames) {
-            if (layer->willReleaseBufferOnLatch()) {
-                mLayersWithBuffersRemoved.emplace(layer);
-            }
-            if (layer->latchBuffer(visibleRegions, latchTime)) {
-                mLayersPendingRefresh.push_back(layer);
-                newDataLatched = true;
-            }
-            layer->useSurfaceDamage();
-        }
-    }
-
-    mVisibleRegionsDirty |= visibleRegions;
-
-    // If we will need to wake up at some time in the future to deal with a
-    // queued frame that shouldn't be displayed during this vsync period, wake
-    // up during the next vsync period to check again.
-    if (frameQueued && (mLayersWithQueuedFrames.empty() || !newDataLatched)) {
-        scheduleCommit(FrameHint::kNone);
-    }
-
-    // enter boot animation on first buffer latch
-    if (CC_UNLIKELY(mBootStage == BootStage::BOOTLOADER && newDataLatched)) {
-        ALOGI("Enter boot animation");
-        mBootStage = BootStage::BOOTANIMATION;
-    }
-
-    if (mLayerMirrorRoots.size() > 0) {
-        mDrawingState.traverse([&](Layer* layer) { layer->updateCloneBufferInfo(); });
-    }
-
-    // Only continue with the refresh if there is actually new work to do
-    return !mLayersWithQueuedFrames.empty() && newDataLatched;
-}
-
 status_t SurfaceFlinger::addClientLayer(LayerCreationArgs& args, const sp<IBinder>& handle,
                                         const sp<Layer>& layer, const wp<Layer>& parent,
                                         uint32_t* outTransformHint) {
@@ -4810,7 +4558,7 @@
 
 uint32_t SurfaceFlinger::clearTransactionFlags(uint32_t mask) {
     uint32_t transactionFlags = mTransactionFlags.fetch_and(~mask);
-    ATRACE_INT("mTransactionFlags", transactionFlags);
+    SFTRACE_INT("mTransactionFlags", transactionFlags);
     return transactionFlags & mask;
 }
 
@@ -4818,7 +4566,7 @@
                                          const sp<IBinder>& applyToken, FrameHint frameHint) {
     mScheduler->modulateVsync({}, &VsyncModulator::setTransactionSchedule, schedule, applyToken);
     uint32_t transactionFlags = mTransactionFlags.fetch_or(mask);
-    ATRACE_INT("mTransactionFlags", transactionFlags);
+    SFTRACE_INT("mTransactionFlags", transactionFlags);
 
     if (const bool scheduled = transactionFlags & mask; !scheduled) {
         scheduleCommit(frameHint);
@@ -4843,8 +4591,8 @@
     // for stability reasons.
     if (!transaction.isAutoTimestamp && desiredPresentTime >= expectedPresentTime &&
         desiredPresentTime < expectedPresentTime + 1s) {
-        ATRACE_FORMAT("not current desiredPresentTime: %" PRId64 " expectedPresentTime: %" PRId64,
-                      desiredPresentTime, expectedPresentTime);
+        SFTRACE_FORMAT("not current desiredPresentTime: %" PRId64 " expectedPresentTime: %" PRId64,
+                       desiredPresentTime, expectedPresentTime);
         return TransactionReadiness::NotReady;
     }
 
@@ -4856,117 +4604,22 @@
     // incorrectly as the frame rate of SF changed before it drained the older transactions.
     if (ftl::to_underlying(vsyncId) == FrameTimelineInfo::INVALID_VSYNC_ID &&
         !mScheduler->isVsyncValid(expectedPresentTime, transaction.originUid)) {
-        ATRACE_FORMAT("!isVsyncValid expectedPresentTime: %" PRId64 " uid: %d", expectedPresentTime,
-                      transaction.originUid);
+        SFTRACE_FORMAT("!isVsyncValid expectedPresentTime: %" PRId64 " uid: %d",
+                       expectedPresentTime, transaction.originUid);
         return TransactionReadiness::NotReady;
     }
 
     // If the client didn't specify desiredPresentTime, use the vsyncId to determine the
     // expected present time of this transaction.
     if (transaction.isAutoTimestamp && frameIsEarly(expectedPresentTime, vsyncId)) {
-        ATRACE_FORMAT("frameIsEarly vsyncId: %" PRId64 " expectedPresentTime: %" PRId64,
-                      transaction.frameTimelineInfo.vsyncId, expectedPresentTime);
+        SFTRACE_FORMAT("frameIsEarly vsyncId: %" PRId64 " expectedPresentTime: %" PRId64,
+                       transaction.frameTimelineInfo.vsyncId, expectedPresentTime);
         return TransactionReadiness::NotReady;
     }
 
     return TransactionReadiness::Ready;
 }
 
-TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheckLegacy(
-        const TransactionHandler::TransactionFlushState& flushState) {
-    using TransactionReadiness = TransactionHandler::TransactionReadiness;
-    auto ready = TransactionReadiness::Ready;
-    flushState.transaction->traverseStatesWithBuffersWhileTrue([&](const ResolvedComposerState&
-                                                                           resolvedState) -> bool {
-        sp<Layer> layer = LayerHandle::getLayer(resolvedState.state.surface);
-
-        const auto& transaction = *flushState.transaction;
-        const auto& s = resolvedState.state;
-        // check for barrier frames
-        if (s.bufferData->hasBarrier) {
-            // The current producerId is already a newer producer than the buffer that has a
-            // barrier. This means the incoming buffer is older and we can release it here. We
-            // don't wait on the barrier since we know that's stale information.
-            if (layer->getDrawingState().barrierProducerId > s.bufferData->producerId) {
-                layer->callReleaseBufferCallback(s.bufferData->releaseBufferListener,
-                                                 resolvedState.externalTexture->getBuffer(),
-                                                 s.bufferData->frameNumber,
-                                                 s.bufferData->acquireFence);
-                // Delete the entire state at this point and not just release the buffer because
-                // everything associated with the Layer in this Transaction is now out of date.
-                ATRACE_FORMAT("DeleteStaleBuffer %s barrierProducerId:%d > %d",
-                              layer->getDebugName(), layer->getDrawingState().barrierProducerId,
-                              s.bufferData->producerId);
-                return TraverseBuffersReturnValues::DELETE_AND_CONTINUE_TRAVERSAL;
-            }
-
-            if (layer->getDrawingState().barrierFrameNumber < s.bufferData->barrierFrameNumber) {
-                const bool willApplyBarrierFrame =
-                        flushState.bufferLayersReadyToPresent.contains(s.surface.get()) &&
-                        ((flushState.bufferLayersReadyToPresent.get(s.surface.get()) >=
-                          s.bufferData->barrierFrameNumber));
-                if (!willApplyBarrierFrame) {
-                    ATRACE_FORMAT("NotReadyBarrier %s barrierFrameNumber:%" PRId64 " > %" PRId64,
-                                  layer->getDebugName(),
-                                  layer->getDrawingState().barrierFrameNumber,
-                                  s.bufferData->barrierFrameNumber);
-                    ready = TransactionReadiness::NotReadyBarrier;
-                    return TraverseBuffersReturnValues::STOP_TRAVERSAL;
-                }
-            }
-        }
-
-        // If backpressure is enabled and we already have a buffer to commit, keep
-        // the transaction in the queue.
-        const bool hasPendingBuffer =
-                flushState.bufferLayersReadyToPresent.contains(s.surface.get());
-        if (layer->backpressureEnabled() && hasPendingBuffer && transaction.isAutoTimestamp) {
-            ATRACE_FORMAT("hasPendingBuffer %s", layer->getDebugName());
-            ready = TransactionReadiness::NotReady;
-            return TraverseBuffersReturnValues::STOP_TRAVERSAL;
-        }
-
-        const bool acquireFenceAvailable = s.bufferData &&
-                s.bufferData->flags.test(BufferData::BufferDataChange::fenceChanged) &&
-                s.bufferData->acquireFence;
-        const bool fenceSignaled = !acquireFenceAvailable ||
-                s.bufferData->acquireFence->getStatus() != Fence::Status::Unsignaled;
-        if (!fenceSignaled) {
-            // check fence status
-            const bool allowLatchUnsignaled = shouldLatchUnsignaled(s, transaction.states.size(),
-                                                                    flushState.firstTransaction) &&
-                    layer->isSimpleBufferUpdate(s);
-
-            if (allowLatchUnsignaled) {
-                ATRACE_FORMAT("fence unsignaled try allowLatchUnsignaled %s",
-                              layer->getDebugName());
-                ready = TransactionReadiness::NotReadyUnsignaled;
-            } else {
-                ready = TransactionReadiness::NotReady;
-                auto& listener = s.bufferData->releaseBufferListener;
-                if (listener &&
-                    (flushState.queueProcessTime - transaction.postTime) >
-                            std::chrono::nanoseconds(4s).count()) {
-                    // Used to add a stalled transaction which uses an internal lock.
-                    ftl::FakeGuard guard(kMainThreadContext);
-                    mTransactionHandler
-                            .onTransactionQueueStalled(transaction.id,
-                                                       {.pid = layer->getOwnerPid(),
-                                                        .layerId = static_cast<uint32_t>(
-                                                                layer->getSequence()),
-                                                        .layerName = layer->getDebugName(),
-                                                        .bufferId = s.bufferData->getId(),
-                                                        .frameNumber = s.bufferData->frameNumber});
-                }
-                ATRACE_FORMAT("fence unsignaled %s", layer->getDebugName());
-                return TraverseBuffersReturnValues::STOP_TRAVERSAL;
-            }
-        }
-        return TraverseBuffersReturnValues::CONTINUE_TRAVERSAL;
-    });
-    return ready;
-}
-
 TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheck(
         const TransactionHandler::TransactionFlushState& flushState) {
     using TransactionReadiness = TransactionHandler::TransactionReadiness;
@@ -4988,8 +4641,8 @@
                             uint32_t currentMaxAcquiredBufferCount =
                                     getMaxAcquiredBufferCountForCurrentRefreshRate(
                                             layer->ownerUid.val());
-                            ATRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64,
-                                                  layer->name.c_str(), s.bufferData->frameNumber);
+                            SFTRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64,
+                                                   layer->name.c_str(), s.bufferData->frameNumber);
                             s.bufferData->releaseBufferListener
                                     ->onReleaseBuffer({resolvedState.externalTexture->getBuffer()
                                                                ->getId(),
@@ -5003,9 +4656,9 @@
                         // Delete the entire state at this point and not just release the buffer
                         // because everything associated with the Layer in this Transaction is now
                         // out of date.
-                        ATRACE_FORMAT("DeleteStaleBuffer %s barrierProducerId:%d > %d",
-                                      layer->name.c_str(), layer->barrierProducerId,
-                                      s.bufferData->producerId);
+                        SFTRACE_FORMAT("DeleteStaleBuffer %s barrierProducerId:%d > %d",
+                                       layer->name.c_str(), layer->barrierProducerId,
+                                       s.bufferData->producerId);
                         return TraverseBuffersReturnValues::DELETE_AND_CONTINUE_TRAVERSAL;
                     }
 
@@ -5015,10 +4668,10 @@
                                 ((flushState.bufferLayersReadyToPresent.get(s.surface.get()) >=
                                   s.bufferData->barrierFrameNumber));
                         if (!willApplyBarrierFrame) {
-                            ATRACE_FORMAT("NotReadyBarrier %s barrierFrameNumber:%" PRId64
-                                          " > %" PRId64,
-                                          layer->name.c_str(), layer->barrierFrameNumber,
-                                          s.bufferData->barrierFrameNumber);
+                            SFTRACE_FORMAT("NotReadyBarrier %s barrierFrameNumber:%" PRId64
+                                           " > %" PRId64,
+                                           layer->name.c_str(), layer->barrierFrameNumber,
+                                           s.bufferData->barrierFrameNumber);
                             ready = TransactionReadiness::NotReadyBarrier;
                             return TraverseBuffersReturnValues::STOP_TRAVERSAL;
                         }
@@ -5031,7 +4684,7 @@
                         flushState.bufferLayersReadyToPresent.contains(s.surface.get());
                 if (layer->backpressureEnabled() && hasPendingBuffer &&
                     transaction.isAutoTimestamp) {
-                    ATRACE_FORMAT("hasPendingBuffer %s", layer->name.c_str());
+                    SFTRACE_FORMAT("hasPendingBuffer %s", layer->name.c_str());
                     ready = TransactionReadiness::NotReady;
                     return TraverseBuffersReturnValues::STOP_TRAVERSAL;
                 }
@@ -5048,8 +4701,8 @@
                                                   flushState.firstTransaction) &&
                             layer->isSimpleBufferUpdate(s);
                     if (allowLatchUnsignaled) {
-                        ATRACE_FORMAT("fence unsignaled try allowLatchUnsignaled %s",
-                                      layer->name.c_str());
+                        SFTRACE_FORMAT("fence unsignaled try allowLatchUnsignaled %s",
+                                       layer->name.c_str());
                         ready = TransactionReadiness::NotReadyUnsignaled;
                     } else {
                         ready = TransactionReadiness::NotReady;
@@ -5066,7 +4719,7 @@
                                                                 .frameNumber =
                                                                         s.bufferData->frameNumber});
                         }
-                        ATRACE_FORMAT("fence unsignaled %s", layer->name.c_str());
+                        SFTRACE_FORMAT("fence unsignaled %s", layer->name.c_str());
                         return TraverseBuffersReturnValues::STOP_TRAVERSAL;
                     }
                 }
@@ -5078,15 +4731,8 @@
 void SurfaceFlinger::addTransactionReadyFilters() {
     mTransactionHandler.addTransactionReadyFilter(
             std::bind(&SurfaceFlinger::transactionReadyTimelineCheck, this, std::placeholders::_1));
-    if (mLayerLifecycleManagerEnabled) {
-        mTransactionHandler.addTransactionReadyFilter(
-                std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this,
-                          std::placeholders::_1));
-    } else {
-        mTransactionHandler.addTransactionReadyFilter(
-                std::bind(&SurfaceFlinger::transactionReadyBufferCheckLegacy, this,
-                          std::placeholders::_1));
-    }
+    mTransactionHandler.addTransactionReadyFilter(
+            std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this, std::placeholders::_1));
 }
 
 // For tests only
@@ -5147,22 +4793,22 @@
 bool SurfaceFlinger::shouldLatchUnsignaled(const layer_state_t& state, size_t numStates,
                                            bool firstTransaction) const {
     if (enableLatchUnsignaledConfig == LatchUnsignaledConfig::Disabled) {
-        ATRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::Disabled)", __func__);
+        SFTRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::Disabled)", __func__);
         return false;
     }
 
     // We only want to latch unsignaled when a single layer is updated in this
     // transaction (i.e. not a blast sync transaction).
     if (numStates != 1) {
-        ATRACE_FORMAT_INSTANT("%s: false (numStates=%zu)", __func__, numStates);
+        SFTRACE_FORMAT_INSTANT("%s: false (numStates=%zu)", __func__, numStates);
         return false;
     }
 
     if (enableLatchUnsignaledConfig == LatchUnsignaledConfig::AutoSingleLayer) {
         if (!firstTransaction) {
-            ATRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::AutoSingleLayer; not first "
-                                  "transaction)",
-                                  __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::AutoSingleLayer; not first "
+                                   "transaction)",
+                                   __func__);
             return false;
         }
 
@@ -5170,9 +4816,9 @@
         // as it leads to jank due to RenderEngine waiting for unsignaled buffer
         // or window animations being slow.
         if (mScheduler->vsyncModulator().isVsyncConfigEarly()) {
-            ATRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::AutoSingleLayer; "
-                                  "isVsyncConfigEarly)",
-                                  __func__);
+            SFTRACE_FORMAT_INSTANT("%s: false (LatchUnsignaledConfig::AutoSingleLayer; "
+                                   "isVsyncConfigEarly)",
+                                   __func__);
             return false;
         }
     }
@@ -5182,12 +4828,12 @@
 
 status_t SurfaceFlinger::setTransactionState(
         const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& states,
-        const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+        Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
         InputWindowCommands inputWindowCommands, int64_t desiredPresentTime, bool isAutoTimestamp,
         const std::vector<client_cache_t>& uncacheBuffers, bool hasListenerCallbacks,
         const std::vector<ListenerCallbacks>& listenerCallbacks, uint64_t transactionId,
         const std::vector<uint64_t>& mergedTransactionIds) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     IPCThreadState* ipc = IPCThreadState::self();
     const int originPid = ipc->getCallingPid();
@@ -5197,7 +4843,7 @@
         composerState.state.sanitize(permissions);
     }
 
-    for (DisplayState display : displays) {
+    for (DisplayState& display : displays) {
         display.sanitize(permissions);
     }
 
@@ -5318,11 +4964,6 @@
                                            const std::vector<ListenerCallbacks>& listenerCallbacks,
                                            int originPid, int originUid, uint64_t transactionId) {
     uint32_t transactionFlags = 0;
-    if (!mLayerLifecycleManagerEnabled) {
-        for (DisplayState& display : displays) {
-            transactionFlags |= setDisplayStateLocked(display);
-        }
-    }
 
     // start and end registration for listeners w/ no surface so they can get their callback.  Note
     // that listeners with SurfaceControls will start registration during setClientStateLocked
@@ -5330,27 +4971,11 @@
     for (const auto& listener : listenerCallbacks) {
         mTransactionCallbackInvoker.addEmptyTransaction(listener);
     }
-    nsecs_t now = systemTime();
     uint32_t clientStateFlags = 0;
     for (auto& resolvedState : states) {
         clientStateFlags |=
                 updateLayerCallbacksAndStats(frameTimelineInfo, resolvedState, desiredPresentTime,
                                              isAutoTimestamp, postTime, transactionId);
-        if (!mLayerLifecycleManagerEnabled) {
-            if ((flags & eAnimation) && resolvedState.state.surface) {
-                if (const auto layer = LayerHandle::getLayer(resolvedState.state.surface)) {
-                    const auto layerProps = scheduler::LayerProps{
-                            .visible = layer->isVisible(),
-                            .bounds = layer->getBounds(),
-                            .transform = layer->getTransform(),
-                            .setFrameRateVote = layer->getFrameRateForLayerTree(),
-                            .frameRateSelectionPriority = layer->getFrameRateSelectionPriority(),
-                            .isFrontBuffered = layer->isFrontBuffered(),
-                    };
-                    layer->recordLayerHistoryAnimationTx(layerProps, now);
-                }
-            }
-        }
     }
 
     transactionFlags |= clientStateFlags;
@@ -5485,366 +5110,6 @@
     return true;
 }
 
-uint32_t SurfaceFlinger::setClientStateLocked(const FrameTimelineInfo& frameTimelineInfo,
-                                              ResolvedComposerState& composerState,
-                                              int64_t desiredPresentTime, bool isAutoTimestamp,
-                                              int64_t postTime, uint64_t transactionId) {
-    layer_state_t& s = composerState.state;
-
-    std::vector<ListenerCallbacks> filteredListeners;
-    for (auto& listener : s.listeners) {
-        // Starts a registration but separates the callback ids according to callback type. This
-        // allows the callback invoker to send on latch callbacks earlier.
-        // note that startRegistration will not re-register if the listener has
-        // already be registered for a prior surface control
-
-        ListenerCallbacks onCommitCallbacks = listener.filter(CallbackId::Type::ON_COMMIT);
-        if (!onCommitCallbacks.callbackIds.empty()) {
-            filteredListeners.push_back(onCommitCallbacks);
-        }
-
-        ListenerCallbacks onCompleteCallbacks = listener.filter(CallbackId::Type::ON_COMPLETE);
-        if (!onCompleteCallbacks.callbackIds.empty()) {
-            filteredListeners.push_back(onCompleteCallbacks);
-        }
-    }
-
-    const uint64_t what = s.what;
-    uint32_t flags = 0;
-    sp<Layer> layer = nullptr;
-    if (s.surface) {
-        layer = LayerHandle::getLayer(s.surface);
-    } else {
-        // The client may provide us a null handle. Treat it as if the layer was removed.
-        ALOGW("Attempt to set client state with a null layer handle");
-    }
-    if (layer == nullptr) {
-        for (auto& [listener, callbackIds] : s.listeners) {
-            mTransactionCallbackInvoker.addCallbackHandle(sp<CallbackHandle>::make(listener,
-                                                                                   callbackIds,
-                                                                                   s.surface),
-                                                          std::vector<JankData>());
-        }
-        return 0;
-    }
-    MUTEX_ALIAS(mStateLock, layer->mFlinger->mStateLock);
-
-    ui::LayerStack oldLayerStack = layer->getLayerStack(LayerVector::StateSet::Current);
-
-    // Only set by BLAST adapter layers
-    if (what & layer_state_t::eProducerDisconnect) {
-        layer->onDisconnect();
-    }
-
-    if (what & layer_state_t::ePositionChanged) {
-        if (layer->setPosition(s.x, s.y)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eLayerChanged) {
-        // NOTE: index needs to be calculated before we update the state
-        const auto& p = layer->getParent();
-        if (p == nullptr) {
-            ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
-            if (layer->setLayer(s.z) && idx >= 0) {
-                mCurrentState.layersSortedByZ.removeAt(idx);
-                mCurrentState.layersSortedByZ.add(layer);
-                // we need traversal (state changed)
-                // AND transaction (list changed)
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        } else {
-            if (p->setChildLayer(layer, s.z)) {
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        }
-    }
-    if (what & layer_state_t::eRelativeLayerChanged) {
-        // NOTE: index needs to be calculated before we update the state
-        const auto& p = layer->getParent();
-        const auto& relativeHandle = s.relativeLayerSurfaceControl ?
-                s.relativeLayerSurfaceControl->getHandle() : nullptr;
-        if (p == nullptr) {
-            ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
-            if (layer->setRelativeLayer(relativeHandle, s.z) &&
-                idx >= 0) {
-                mCurrentState.layersSortedByZ.removeAt(idx);
-                mCurrentState.layersSortedByZ.add(layer);
-                // we need traversal (state changed)
-                // AND transaction (list changed)
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        } else {
-            if (p->setChildRelativeLayer(layer, relativeHandle, s.z)) {
-                flags |= eTransactionNeeded|eTraversalNeeded;
-            }
-        }
-    }
-    if (what & layer_state_t::eAlphaChanged) {
-        if (layer->setAlpha(s.color.a)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eColorChanged) {
-        if (layer->setColor(s.color.rgb)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eColorTransformChanged) {
-        if (layer->setColorTransform(s.colorTransform)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eBackgroundColorChanged) {
-        if (layer->setBackgroundColor(s.bgColor.rgb, s.bgColor.a, s.bgColorDataspace)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eMatrixChanged) {
-        if (layer->setMatrix(s.matrix)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eTransparentRegionChanged) {
-        if (layer->setTransparentRegionHint(s.transparentRegion))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eFlagsChanged) {
-        if (layer->setFlags(s.flags, s.mask)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eCornerRadiusChanged) {
-        if (layer->setCornerRadius(s.cornerRadius))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eBackgroundBlurRadiusChanged && mSupportsBlur) {
-        if (layer->setBackgroundBlurRadius(s.backgroundBlurRadius)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eBlurRegionsChanged) {
-        if (layer->setBlurRegions(s.blurRegions)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eLayerStackChanged) {
-        ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
-        // We only allow setting layer stacks for top level layers,
-        // everything else inherits layer stack from its parent.
-        if (layer->hasParent()) {
-            ALOGE("Attempt to set layer stack on layer with parent (%s) is invalid",
-                  layer->getDebugName());
-        } else if (idx < 0) {
-            ALOGE("Attempt to set layer stack on layer without parent (%s) that "
-                  "that also does not appear in the top level layer list. Something"
-                  " has gone wrong.",
-                  layer->getDebugName());
-        } else if (layer->setLayerStack(s.layerStack)) {
-            mCurrentState.layersSortedByZ.removeAt(idx);
-            mCurrentState.layersSortedByZ.add(layer);
-            // we need traversal (state changed)
-            // AND transaction (list changed)
-            flags |= eTransactionNeeded | eTraversalNeeded | eTransformHintUpdateNeeded;
-        }
-    }
-    if (what & layer_state_t::eBufferTransformChanged) {
-        if (layer->setTransform(s.bufferTransform)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eTransformToDisplayInverseChanged) {
-        if (layer->setTransformToDisplayInverse(s.transformToDisplayInverse))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eCropChanged) {
-        if (layer->setCrop(s.crop)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eDataspaceChanged) {
-        if (layer->setDataspace(s.dataspace)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eSurfaceDamageRegionChanged) {
-        if (layer->setSurfaceDamageRegion(s.surfaceDamageRegion)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eApiChanged) {
-        if (layer->setApi(s.api)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eSidebandStreamChanged) {
-        if (layer->setSidebandStream(s.sidebandStream, frameTimelineInfo, postTime))
-            flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eInputInfoChanged) {
-        layer->setInputInfo(*s.windowInfoHandle->getInfo());
-        flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eMetadataChanged) {
-        if (const int32_t gameMode = s.metadata.getInt32(gui::METADATA_GAME_MODE, -1);
-            gameMode != -1) {
-            // The transaction will be received on the Task layer and needs to be applied to all
-            // child layers. Child layers that are added at a later point will obtain the game mode
-            // info through addChild().
-            layer->setGameModeForTree(static_cast<GameMode>(gameMode));
-        }
-
-        if (layer->setMetadata(s.metadata)) {
-            flags |= eTraversalNeeded;
-            mLayerMetadataSnapshotNeeded = true;
-        }
-    }
-    if (what & layer_state_t::eColorSpaceAgnosticChanged) {
-        if (layer->setColorSpaceAgnostic(s.colorSpaceAgnostic)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eShadowRadiusChanged) {
-        if (layer->setShadowRadius(s.shadowRadius)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eDefaultFrameRateCompatibilityChanged) {
-        const auto compatibility =
-                Layer::FrameRate::convertCompatibility(s.defaultFrameRateCompatibility);
-
-        if (layer->setDefaultFrameRateCompatibility(compatibility)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateSelectionPriority) {
-        if (layer->setFrameRateSelectionPriority(s.frameRateSelectionPriority)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateChanged) {
-        const auto compatibility =
-            Layer::FrameRate::convertCompatibility(s.frameRateCompatibility);
-        const auto strategy =
-            Layer::FrameRate::convertChangeFrameRateStrategy(s.changeFrameRateStrategy);
-
-        if (layer->setFrameRate(Layer::FrameRate::FrameRateVote(Fps::fromValue(s.frameRate),
-                                                                compatibility, strategy))) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateCategoryChanged) {
-        const FrameRateCategory category = Layer::FrameRate::convertCategory(s.frameRateCategory);
-        if (layer->setFrameRateCategory(category, s.frameRateCategorySmoothSwitchOnly)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFrameRateSelectionStrategyChanged) {
-        const scheduler::LayerInfo::FrameRateSelectionStrategy strategy =
-                scheduler::LayerInfo::convertFrameRateSelectionStrategy(
-                        s.frameRateSelectionStrategy);
-        if (layer->setFrameRateSelectionStrategy(strategy)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eFixedTransformHintChanged) {
-        if (layer->setFixedTransformHint(s.fixedTransformHint)) {
-            flags |= eTraversalNeeded | eTransformHintUpdateNeeded;
-        }
-    }
-    if (what & layer_state_t::eAutoRefreshChanged) {
-        layer->setAutoRefresh(s.autoRefresh);
-    }
-    if (what & layer_state_t::eDimmingEnabledChanged) {
-        if (layer->setDimmingEnabled(s.dimmingEnabled)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eExtendedRangeBrightnessChanged) {
-        if (layer->setExtendedRangeBrightness(s.currentHdrSdrRatio, s.desiredHdrSdrRatio)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eDesiredHdrHeadroomChanged) {
-        if (layer->setDesiredHdrHeadroom(s.desiredHdrSdrRatio)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eCachingHintChanged) {
-        if (layer->setCachingHint(s.cachingHint)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eHdrMetadataChanged) {
-        if (layer->setHdrMetadata(s.hdrMetadata)) flags |= eTraversalNeeded;
-    }
-    if (what & layer_state_t::eTrustedOverlayChanged) {
-        if (layer->setTrustedOverlay(s.trustedOverlay == gui::TrustedOverlay::ENABLED)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eStretchChanged) {
-        if (layer->setStretchEffect(s.stretchEffect)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eBufferCropChanged) {
-        if (layer->setBufferCrop(s.bufferCrop)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eDestinationFrameChanged) {
-        if (layer->setDestinationFrame(s.destinationFrame)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-    if (what & layer_state_t::eDropInputModeChanged) {
-        if (layer->setDropInputMode(s.dropInputMode)) {
-            flags |= eTraversalNeeded;
-            mUpdateInputInfo = true;
-        }
-    }
-    // This has to happen after we reparent children because when we reparent to null we remove
-    // child layers from current state and remove its relative z. If the children are reparented in
-    // the same transaction, then we have to make sure we reparent the children first so we do not
-    // lose its relative z order.
-    if (what & layer_state_t::eReparent) {
-        bool hadParent = layer->hasParent();
-        auto parentHandle = (s.parentSurfaceControlForChild)
-                ? s.parentSurfaceControlForChild->getHandle()
-                : nullptr;
-        if (layer->reparent(parentHandle)) {
-            if (!hadParent) {
-                layer->setIsAtRoot(false);
-                mCurrentState.layersSortedByZ.remove(layer);
-            }
-            flags |= eTransactionNeeded | eTraversalNeeded;
-        }
-    }
-    std::vector<sp<CallbackHandle>> callbackHandles;
-    if ((what & layer_state_t::eHasListenerCallbacksChanged) && (!filteredListeners.empty())) {
-        for (auto& [listener, callbackIds] : filteredListeners) {
-            callbackHandles.emplace_back(
-                    sp<CallbackHandle>::make(listener, callbackIds, s.surface));
-        }
-    }
-
-    if (what & layer_state_t::eBufferChanged) {
-        if (layer->setBuffer(composerState.externalTexture, *s.bufferData, postTime,
-                             desiredPresentTime, isAutoTimestamp, frameTimelineInfo)) {
-            flags |= eTraversalNeeded;
-        }
-    } else if (frameTimelineInfo.vsyncId != FrameTimelineInfo::INVALID_VSYNC_ID) {
-        layer->setFrameTimelineVsyncForBufferlessTransaction(frameTimelineInfo, postTime);
-    }
-
-    if ((what & layer_state_t::eBufferChanged) == 0) {
-        layer->setDesiredPresentTime(desiredPresentTime, isAutoTimestamp);
-    }
-
-    if (what & layer_state_t::eTrustedPresentationInfoChanged) {
-        if (layer->setTrustedPresentationInfo(s.trustedPresentationThresholds,
-                                              s.trustedPresentationListener)) {
-            flags |= eTraversalNeeded;
-        }
-    }
-
-    if (what & layer_state_t::eFlushJankData) {
-        // Do nothing. Processing the transaction completed listeners currently cause the flush.
-    }
-
-    if (layer->setTransactionCompletedListeners(callbackHandles,
-                                                layer->willPresentCurrentTransaction() ||
-                                                        layer->willReleaseBufferOnLatch())) {
-        flags |= eTraversalNeeded;
-    }
-
-    // Do not put anything that updates layer state or modifies flags after
-    // setTransactionCompletedListener
-
-    // if the layer has been parented on to a new display, update its transform hint.
-    if (((flags & eTransformHintUpdateNeeded) == 0) &&
-        oldLayerStack != layer->getLayerStack(LayerVector::StateSet::Current)) {
-        flags |= eTransformHintUpdateNeeded;
-    }
-
-    return flags;
-}
-
 uint32_t SurfaceFlinger::updateLayerCallbacksAndStats(const FrameTimelineInfo& frameTimelineInfo,
                                                       ResolvedComposerState& composerState,
                                                       int64_t desiredPresentTime,
@@ -5881,10 +5146,8 @@
     }
     if (layer == nullptr) {
         for (auto& [listener, callbackIds] : s.listeners) {
-            mTransactionCallbackInvoker.addCallbackHandle(sp<CallbackHandle>::make(listener,
-                                                                                   callbackIds,
-                                                                                   s.surface),
-                                                          std::vector<JankData>());
+            mTransactionCallbackInvoker.addCallbackHandle(
+                    sp<CallbackHandle>::make(listener, callbackIds, s.surface));
         }
         return 0;
     }
@@ -5899,6 +5162,17 @@
                     sp<CallbackHandle>::make(listener, callbackIds, s.surface));
         }
     }
+
+    frontend::LayerSnapshot* snapshot = nullptr;
+    gui::GameMode gameMode = gui::GameMode::Unsupported;
+    if (what & (layer_state_t::eSidebandStreamChanged | layer_state_t::eBufferChanged) ||
+        frameTimelineInfo.vsyncId != FrameTimelineInfo::INVALID_VSYNC_ID) {
+        snapshot = mLayerSnapshotBuilder.getSnapshot(layer->sequence);
+        if (snapshot) {
+            gameMode = snapshot->gameMode;
+        }
+    }
+
     // TODO(b/238781169) remove after screenshot refactor, currently screenshots
     // requires to read drawing state from binder thread. So we need to fix that
     // before removing this.
@@ -5913,7 +5187,7 @@
         if (layer->setCrop(s.crop)) flags |= eTraversalNeeded;
     }
     if (what & layer_state_t::eSidebandStreamChanged) {
-        if (layer->setSidebandStream(s.sidebandStream, frameTimelineInfo, postTime))
+        if (layer->setSidebandStream(s.sidebandStream, frameTimelineInfo, postTime, gameMode))
             flags |= eTraversalNeeded;
     }
     if (what & layer_state_t::eDataspaceChanged) {
@@ -5931,18 +5205,17 @@
     }
     if (what & layer_state_t::eBufferChanged) {
         std::optional<ui::Transform::RotationFlags> transformHint = std::nullopt;
-        frontend::LayerSnapshot* snapshot = mLayerSnapshotBuilder.getSnapshot(layer->sequence);
         if (snapshot) {
             transformHint = snapshot->transformHint;
         }
         layer->setTransformHint(transformHint);
         if (layer->setBuffer(composerState.externalTexture, *s.bufferData, postTime,
-                             desiredPresentTime, isAutoTimestamp, frameTimelineInfo)) {
+                             desiredPresentTime, isAutoTimestamp, frameTimelineInfo, gameMode)) {
             flags |= eTraversalNeeded;
         }
-        mLayersWithQueuedFrames.emplace(layer);
+        mLayersWithQueuedFrames.emplace(layer, gameMode);
     } else if (frameTimelineInfo.vsyncId != FrameTimelineInfo::INVALID_VSYNC_ID) {
-        layer->setFrameTimelineVsyncForBufferlessTransaction(frameTimelineInfo, postTime);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(frameTimelineInfo, postTime, gameMode);
     }
 
     if ((what & layer_state_t::eBufferChanged) == 0) {
@@ -6127,6 +5400,8 @@
         mTransactionHandler.onLayerDestroyed(layerId);
     }
 
+    JankTracker::flushJankData(layerId);
+
     Mutex::Autolock lock(mStateLock);
     markLayerPendingRemovalLocked(layer);
     layer->onHandleDestroyed();
@@ -6404,15 +5679,23 @@
         return NO_ERROR;
     }
 
-    // Traversal of drawing state must happen on the main thread.
-    // Otherwise, SortedVector may have shared ownership during concurrent
-    // traversals, which can result in use-after-frees.
+    // Collect debug data from main thread
     std::string compositionLayers;
     mScheduler
             ->schedule([&]() FTL_FAKE_GUARD(mStateLock) FTL_FAKE_GUARD(kMainThreadContext) {
                 dumpVisibleFrontEnd(compositionLayers);
             })
             .get();
+    // get window info listener data without the state lock
+    auto windowInfosDebug = mWindowInfosListenerInvoker->getDebugInfo();
+    compositionLayers.append("Window Infos:\n");
+    StringAppendF(&compositionLayers, "  max send vsync id: %" PRId64 "\n",
+                  ftl::to_underlying(windowInfosDebug.maxSendDelayVsyncId));
+    StringAppendF(&compositionLayers, "  max send delay (ns): %" PRId64 " ns\n",
+                  windowInfosDebug.maxSendDelayDuration);
+    StringAppendF(&compositionLayers, "  unsent messages: %zu\n",
+                  windowInfosDebug.pendingMessageCount);
+    compositionLayers.append("\n");
     dumpAll(args, compositionLayers, result);
     write(fd, result.c_str(), result.size());
     return NO_ERROR;
@@ -6429,7 +5712,7 @@
 }
 
 void SurfaceFlinger::dumpStats(const DumpArgs& args, std::string& result) const {
-    StringAppendF(&result, "%" PRId64 "\n", getVsyncPeriodFromHWC());
+    StringAppendF(&result, "%" PRId64 "\n", mScheduler->getPacesetterVsyncPeriod().ns());
     if (args.size() < 2) return;
 
     const auto name = String8(args[1]);
@@ -6464,7 +5747,7 @@
     if (now - sTimestamp < 30min) return;
     sTimestamp = now;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     mDrawingState.traverse([&](Layer* layer) { layer->logFrameStats(); });
 }
 
@@ -6489,11 +5772,6 @@
     // TODO(b/241285876): Move to DisplayModeController.
     dumper.dump("debugDisplayModeSetByBackdoor"sv, mDebugDisplayModeSetByBackdoor);
     dumper.eol();
-
-    StringAppendF(&result,
-                  "         present offset: %9" PRId64 " ns\t        VSYNC period: %9" PRId64
-                  " ns\n\n",
-                  dispSyncPresentTimeOffset, getVsyncPeriodFromHWC());
 }
 
 void SurfaceFlinger::dumpEvents(std::string& result) const {
@@ -6656,53 +5934,35 @@
 }
 
 void SurfaceFlinger::dumpVisibleFrontEnd(std::string& result) {
-    if (!mLayerLifecycleManagerEnabled) {
-        StringAppendF(&result, "Composition layers\n");
-        mDrawingState.traverseInZOrder([&](Layer* layer) {
-            auto* compositionState = layer->getCompositionState();
-            if (!compositionState || !compositionState->isVisible) return;
-            android::base::StringAppendF(&result, "* Layer %p (%s)\n", layer,
-                                         layer->getDebugName() ? layer->getDebugName()
-                                                               : "<unknown>");
-            compositionState->dump(result);
-        });
-
-        StringAppendF(&result, "Offscreen Layers\n");
-        for (Layer* offscreenLayer : mOffscreenLayers) {
-            offscreenLayer->traverse(LayerVector::StateSet::Drawing,
-                                     [&](Layer* layer) { layer->dumpOffscreenDebugInfo(result); });
-        }
-    } else {
-        std::ostringstream out;
-        out << "\nComposition list\n";
-        ui::LayerStack lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
-        mLayerSnapshotBuilder.forEachVisibleSnapshot(
-                [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) {
-                    if (snapshot->hasSomethingToDraw()) {
-                        if (lastPrintedLayerStackHeader != snapshot->outputFilter.layerStack) {
-                            lastPrintedLayerStackHeader = snapshot->outputFilter.layerStack;
-                            out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
-                        }
-                        out << "  " << *snapshot << "\n";
+    std::ostringstream out;
+    out << "\nComposition list\n";
+    ui::LayerStack lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
+    mLayerSnapshotBuilder.forEachVisibleSnapshot(
+            [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) {
+                if (snapshot->hasSomethingToDraw()) {
+                    if (lastPrintedLayerStackHeader != snapshot->outputFilter.layerStack) {
+                        lastPrintedLayerStackHeader = snapshot->outputFilter.layerStack;
+                        out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
                     }
-                });
+                    out << "  " << *snapshot << "\n";
+                }
+            });
 
-        out << "\nInput list\n";
-        lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
-        mLayerSnapshotBuilder.forEachInputSnapshot([&](const frontend::LayerSnapshot& snapshot) {
-            if (lastPrintedLayerStackHeader != snapshot.outputFilter.layerStack) {
-                lastPrintedLayerStackHeader = snapshot.outputFilter.layerStack;
-                out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
-            }
-            out << "  " << snapshot << "\n";
-        });
+    out << "\nInput list\n";
+    lastPrintedLayerStackHeader = ui::INVALID_LAYER_STACK;
+    mLayerSnapshotBuilder.forEachInputSnapshot([&](const frontend::LayerSnapshot& snapshot) {
+        if (lastPrintedLayerStackHeader != snapshot.outputFilter.layerStack) {
+            lastPrintedLayerStackHeader = snapshot.outputFilter.layerStack;
+            out << "LayerStack=" << lastPrintedLayerStackHeader.id << "\n";
+        }
+        out << "  " << snapshot << "\n";
+    });
 
-        out << "\nLayer Hierarchy\n"
-            << mLayerHierarchyBuilder.getHierarchy() << "\nOffscreen Hierarchy\n"
-            << mLayerHierarchyBuilder.getOffscreenHierarchy() << "\n\n";
-        result = out.str();
-        dumpHwcLayersMinidump(result);
-    }
+    out << "\nLayer Hierarchy\n"
+        << mLayerHierarchyBuilder.getHierarchy() << "\nOffscreen Hierarchy\n"
+        << mLayerHierarchyBuilder.getOffscreenHierarchy() << "\n\n";
+    result = out.str();
+    dumpHwcLayersMinidump(result);
 }
 
 perfetto::protos::LayersProto SurfaceFlinger::dumpDrawingStateProto(uint32_t traceFlags) const {
@@ -6763,14 +6023,24 @@
     rootProto->set_name("Offscreen Root");
     rootProto->set_parent(-1);
 
-    for (Layer* offscreenLayer : mOffscreenLayers) {
-        // Add layer as child of the fake root
-        rootProto->add_children(offscreenLayer->sequence);
+    perfetto::protos::LayersProto offscreenLayers =
+            LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
+                                            mLegacyLayers, traceFlags)
+                    .generate(mLayerHierarchyBuilder.getOffscreenHierarchy());
 
-        // Add layer
-        auto* layerProto = offscreenLayer->writeToProto(layersProto, traceFlags);
-        layerProto->set_parent(offscreenRootLayerId);
+    for (int i = 0; i < offscreenLayers.layers_size(); i++) {
+        perfetto::protos::LayerProto* layerProto = offscreenLayers.mutable_layers()->Mutable(i);
+        if (layerProto->parent() == -1) {
+            layerProto->set_parent(offscreenRootLayerId);
+            // Add layer as child of the fake root
+            rootProto->add_children(layerProto->id());
+        }
     }
+
+    layersProto.mutable_layers()->Reserve(layersProto.layers_size() +
+                                          offscreenLayers.layers_size());
+    std::copy(offscreenLayers.layers().begin(), offscreenLayers.layers().end(),
+              RepeatedFieldBackInserter(layersProto.mutable_layers()));
 }
 
 perfetto::protos::LayersProto SurfaceFlinger::dumpProtoFromMainThread(uint32_t traceFlags) {
@@ -6795,28 +6065,8 @@
     result.append(future.get());
 }
 
-void SurfaceFlinger::dumpHwcLayersMinidumpLockedLegacy(std::string& result) const {
-    for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
-        const auto displayId = HalDisplayId::tryCast(display->getId());
-        if (!displayId) {
-            continue;
-        }
-
-        StringAppendF(&result, "Display %s (%s) HWC layers:\n", to_string(*displayId).c_str(),
-                      displayId == mActiveDisplayId ? "active" : "inactive");
-        Layer::miniDumpHeader(result);
-
-        const DisplayDevice& ref = *display;
-        mDrawingState.traverseInZOrder([&](Layer* layer) { layer->miniDumpLegacy(result, ref); });
-        result.append("\n");
-    }
-}
-
 void SurfaceFlinger::dumpHwcLayersMinidump(std::string& result) const {
-    if (!mLayerLifecycleManagerEnabled) {
-        return dumpHwcLayersMinidumpLockedLegacy(result);
-    }
-    for (const auto& [token, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
+    for (const auto& [token, display] : mDisplays) {
         const auto displayId = HalDisplayId::tryCast(display->getId());
         if (!displayId) {
             continue;
@@ -6895,8 +6145,7 @@
      * Dump the visible layer list
      */
     colorizer.bold(result);
-    StringAppendF(&result, "SurfaceFlinger New Frontend Enabled:%s\n",
-                  mLayerLifecycleManagerEnabled ? "true" : "false");
+    StringAppendF(&result, "SurfaceFlinger New Frontend Enabled:%s\n", "true");
     StringAppendF(&result, "Active Layers - layers with client handles (count = %zu)\n",
                   mNumLayers.load());
     colorizer.reset(result);
@@ -6995,15 +6244,6 @@
 
     result.append(mTimeStats->miniDump());
     result.append("\n");
-
-    result.append("Window Infos:\n");
-    auto windowInfosDebug = mWindowInfosListenerInvoker->getDebugInfo();
-    StringAppendF(&result, "  max send vsync id: %" PRId64 "\n",
-                  ftl::to_underlying(windowInfosDebug.maxSendDelayVsyncId));
-    StringAppendF(&result, "  max send delay (ns): %" PRId64 " ns\n",
-                  windowInfosDebug.maxSendDelayDuration);
-    StringAppendF(&result, "  unsent messages: %zu\n", windowInfosDebug.pendingMessageCount);
-    result.append("\n");
 }
 
 mat4 SurfaceFlinger::calculateColorMatrix(float saturation) {
@@ -7497,15 +6737,9 @@
                 return NO_ERROR;
             }
             case 1039: {
-                PhysicalDisplayId displayId = [&]() {
-                    Mutex::Autolock lock(mStateLock);
-                    return getDefaultDisplayDeviceLocked()->getPhysicalId();
-                }();
-
-                auto inUid = static_cast<uid_t>(data.readInt32());
+                const auto uid = static_cast<uid_t>(data.readInt32());
                 const auto refreshRate = data.readFloat();
-                mScheduler->setPreferredRefreshRateForUid(FrameRateOverride{inUid, refreshRate});
-                mScheduler->onFrameRateOverridesChanged(scheduler::Cycle::Render, displayId);
+                mScheduler->setPreferredRefreshRateForUid(FrameRateOverride{uid, refreshRate});
                 return NO_ERROR;
             }
             // Toggle caching feature
@@ -7694,7 +6928,7 @@
 
     // Update the overlay on the main thread to avoid race conditions with
     // RefreshRateSelector::getActiveMode
-    static_cast<void>(mScheduler->schedule([=, this] {
+    static_cast<void>(mScheduler->schedule([=, this]() FTL_FAKE_GUARD(kMainThreadContext) {
         const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
         if (!display) {
             ALOGW("%s: default display is null", __func__);
@@ -7702,15 +6936,9 @@
         }
         if (!display->isRefreshRateOverlayEnabled()) return;
 
-        const auto desiredModeIdOpt =
-                mDisplayModeController.getDesiredMode(display->getPhysicalId())
-                        .transform([](const display::DisplayModeRequest& request) {
-                            return request.mode.modePtr->getId();
-                        });
+        const auto state = mDisplayModeController.getKernelIdleTimerState(display->getPhysicalId());
 
-        const bool timerExpired = mKernelIdleTimerEnabled && expired;
-
-        if (display->onKernelTimerChanged(desiredModeIdOpt, timerExpired)) {
+        if (display->onKernelTimerChanged(state.desiredModeIdOpt, state.isEnabled && expired)) {
             mScheduler->scheduleFrame();
         }
     }));
@@ -7732,8 +6960,8 @@
     }));
 }
 
-std::pair<std::optional<KernelIdleTimerController>, std::chrono::milliseconds>
-SurfaceFlinger::getKernelIdleTimerProperties(PhysicalDisplayId displayId) {
+auto SurfaceFlinger::getKernelIdleTimerProperties(PhysicalDisplayId displayId)
+        -> std::pair<std::optional<KernelIdleTimerController>, std::chrono::milliseconds> {
     const bool isKernelIdleTimerHwcSupported = getHwComposer().getComposer()->isSupported(
             android::Hwc2::Composer::OptionalFeature::KernelIdleTimer);
     const auto timeout = getIdleTimerTimeout(displayId);
@@ -7757,63 +6985,6 @@
     return {std::nullopt, timeout};
 }
 
-void SurfaceFlinger::updateKernelIdleTimer(std::chrono::milliseconds timeout,
-                                           KernelIdleTimerController controller,
-                                           PhysicalDisplayId displayId) {
-    switch (controller) {
-        case KernelIdleTimerController::HwcApi: {
-            getHwComposer().setIdleTimerEnabled(displayId, timeout);
-            break;
-        }
-        case KernelIdleTimerController::Sysprop: {
-            base::SetProperty(KERNEL_IDLE_TIMER_PROP, timeout > 0ms ? "true" : "false");
-            break;
-        }
-    }
-}
-
-void SurfaceFlinger::toggleKernelIdleTimer() {
-    using KernelIdleTimerAction = scheduler::RefreshRateSelector::KernelIdleTimerAction;
-
-    const auto display = getDefaultDisplayDeviceLocked();
-    if (!display) {
-        ALOGW("%s: default display is null", __func__);
-        return;
-    }
-
-    // If the support for kernel idle timer is disabled for the active display,
-    // don't do anything.
-    const std::optional<KernelIdleTimerController> kernelIdleTimerController =
-            display->refreshRateSelector().kernelIdleTimerController();
-    if (!kernelIdleTimerController.has_value()) {
-        return;
-    }
-
-    const KernelIdleTimerAction action = display->refreshRateSelector().getIdleTimerAction();
-
-    switch (action) {
-        case KernelIdleTimerAction::TurnOff:
-            if (mKernelIdleTimerEnabled) {
-                ATRACE_INT("KernelIdleTimer", 0);
-                std::chrono::milliseconds constexpr kTimerDisabledTimeout = 0ms;
-                updateKernelIdleTimer(kTimerDisabledTimeout, kernelIdleTimerController.value(),
-                                      display->getPhysicalId());
-                mKernelIdleTimerEnabled = false;
-            }
-            break;
-        case KernelIdleTimerAction::TurnOn:
-            if (!mKernelIdleTimerEnabled) {
-                ATRACE_INT("KernelIdleTimer", 1);
-                const std::chrono::milliseconds timeout =
-                        display->refreshRateSelector().getIdleTimerTimeout();
-                updateKernelIdleTimer(timeout, kernelIdleTimerController.value(),
-                                      display->getPhysicalId());
-                mKernelIdleTimerEnabled = true;
-            }
-            break;
-    }
-}
-
 // A simple RAII class to disconnect from an ANativeWindow* when it goes out of scope
 class WindowDisconnector {
 public:
@@ -7932,7 +7103,7 @@
 
 void SurfaceFlinger::captureDisplay(const DisplayCaptureArgs& args,
                                     const sp<IScreenCaptureListener>& captureListener) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     status_t validate = validateScreenshotPermissions(args);
     if (validate != OK) {
@@ -8063,7 +7234,7 @@
 
 void SurfaceFlinger::captureLayers(const LayerCaptureArgs& args,
                                    const sp<IScreenCaptureListener>& captureListener) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     status_t validate = validateScreenshotPermissions(args);
     if (validate != OK) {
@@ -8191,12 +7362,12 @@
 // Accessing display requires mStateLock, and contention for this lock
 // is reduced when grabbed from the main thread, thus also reducing
 // risk of deadlocks.
-std::optional<SurfaceFlinger::OutputCompositionState>
-SurfaceFlinger::getDisplayAndLayerSnapshotsFromMainThread(
+std::optional<SurfaceFlinger::OutputCompositionState> SurfaceFlinger::getSnapshotsFromMainThread(
         RenderAreaBuilderVariant& renderAreaBuilder, GetLayerSnapshotsFunction getLayerSnapshotsFn,
         std::vector<sp<LayerFE>>& layerFEs) {
     return mScheduler
             ->schedule([=, this, &renderAreaBuilder, &layerFEs]() REQUIRES(kMainThreadContext) {
+                SFTRACE_NAME("getSnapshotsFromMainThread");
                 auto layers = getLayerSnapshotsFn();
                 for (auto& [layer, layerFE] : layers) {
                     attachReleaseFenceFutureToLayer(layer, layerFE.get(), ui::INVALID_LAYER_STACK);
@@ -8212,7 +7383,7 @@
                                          ui::Size bufferSize, ui::PixelFormat reqPixelFormat,
                                          bool allowProtected, bool grayscale,
                                          const sp<IScreenCaptureListener>& captureListener) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (exceedsMaxRenderTargetSize(bufferSize.getWidth(), bufferSize.getHeight())) {
         ALOGE("Attempted to capture screen with size (%" PRId32 ", %" PRId32
@@ -8226,8 +7397,7 @@
         FlagManager::getInstance().ce_fence_promise() && mRenderEngine->isThreaded()) {
         std::vector<sp<LayerFE>> layerFEs;
         auto displayState =
-                getDisplayAndLayerSnapshotsFromMainThread(renderAreaBuilder, getLayerSnapshotsFn,
-                                                          layerFEs);
+                getSnapshotsFromMainThread(renderAreaBuilder, getLayerSnapshotsFn, layerFEs);
 
         const bool supportsProtected = getRenderEngine().supportsProtectedContent();
         bool hasProtectedLayer = false;
@@ -8350,7 +7520,7 @@
         const std::shared_ptr<renderengine::ExternalTexture>& buffer, bool regionSampling,
         bool grayscale, bool isProtected, const sp<IScreenCaptureListener>& captureListener,
         std::optional<OutputCompositionState>& displayState, std::vector<sp<LayerFE>>& layerFEs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     ScreenCaptureResults captureResults;
     std::unique_ptr<const RenderArea> renderArea =
@@ -8390,7 +7560,7 @@
         RenderAreaBuilderVariant renderAreaBuilder, GetLayerSnapshotsFunction getLayerSnapshotsFn,
         const std::shared_ptr<renderengine::ExternalTexture>& buffer, bool regionSampling,
         bool grayscale, bool isProtected, const sp<IScreenCaptureListener>& captureListener) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     auto takeScreenshotFn = [=, this, renderAreaBuilder = std::move(renderAreaBuilder)]() REQUIRES(
                                     kMainThreadContext) mutable -> ftl::SharedFuture<FenceResult> {
@@ -8454,7 +7624,7 @@
         bool grayscale, bool isProtected, ScreenCaptureResults& captureResults,
         std::optional<OutputCompositionState>& displayState,
         std::vector<std::pair<Layer*, sp<LayerFE>>>& layers, std::vector<sp<LayerFE>>& layerFEs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     for (auto& layerFE : layerFEs) {
         frontend::LayerSnapshot* snapshot = layerFE->mSnapshot.get();
@@ -8630,12 +7800,8 @@
 }
 
 void SurfaceFlinger::traverseLegacyLayers(const LayerVector::Visitor& visitor) const {
-    if (mLayerLifecycleManagerEnabled) {
-        for (auto& layer : mLegacyLayers) {
-            visitor(layer.second.get());
-        }
-    } else {
-        mDrawingState.traverse(visitor);
+    for (auto& layer : mLegacyLayers) {
+        visitor(layer.second.get());
     }
 }
 
@@ -8653,42 +7819,6 @@
     layersSortedByZ.traverseInReverseZOrder(stateSet, visitor);
 }
 
-void SurfaceFlinger::traverseLayersInLayerStack(ui::LayerStack layerStack, const int32_t uid,
-                                                std::unordered_set<uint32_t> excludeLayerIds,
-                                                const LayerVector::Visitor& visitor) {
-    // We loop through the first level of layers without traversing,
-    // as we need to determine which layers belong to the requested display.
-    for (const auto& layer : mDrawingState.layersSortedByZ) {
-        if (layer->getLayerStack() != layerStack) {
-            continue;
-        }
-        // relative layers are traversed in Layer::traverseInZOrder
-        layer->traverseInZOrder(LayerVector::StateSet::Drawing, [&](Layer* layer) {
-            if (layer->isInternalDisplayOverlay()) {
-                return;
-            }
-            if (!layer->isVisible()) {
-                return;
-            }
-            if (uid != CaptureArgs::UNSET_UID && layer->getOwnerUid() != uid) {
-                return;
-            }
-
-            if (!excludeLayerIds.empty()) {
-                auto p = sp<Layer>::fromExisting(layer);
-                while (p != nullptr) {
-                    if (excludeLayerIds.count(p->sequence) != 0) {
-                        return;
-                    }
-                    p = p->getParent();
-                }
-            }
-
-            visitor(layer);
-        });
-    }
-}
-
 ftl::Optional<scheduler::FrameRateMode> SurfaceFlinger::getPreferredDisplayMode(
         PhysicalDisplayId displayId, DisplayModeId defaultModeId) const {
     if (const auto schedulerMode = mScheduler->getPreferredDisplayMode();
@@ -8710,7 +7840,7 @@
         const sp<DisplayDevice>& display,
         const scheduler::RefreshRateSelector::PolicyVariant& policy) {
     const auto displayId = display->getPhysicalId();
-    ATRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
+    SFTRACE_NAME(ftl::Concat(__func__, ' ', displayId.value).c_str());
 
     Mutex::Autolock lock(mStateLock);
 
@@ -8739,13 +7869,9 @@
     const scheduler::RefreshRateSelector::Policy currentPolicy = selector.getCurrentPolicy();
     ALOGV("Setting desired display mode specs: %s", currentPolicy.toString().c_str());
 
-    // TODO(b/140204874): Leave the event in until we do proper testing with all apps that might
-    // be depending in this callback.
-    if (const auto activeMode = selector.getActiveMode(); displayId == mActiveDisplayId) {
-        mScheduler->onPrimaryDisplayModeChanged(scheduler::Cycle::Render, activeMode);
-        toggleKernelIdleTimer();
-    } else {
-        mScheduler->onNonPrimaryDisplayModeChanged(scheduler::Cycle::Render, activeMode);
+    if (const bool isPacesetter =
+                mScheduler->onDisplayModeChanged(displayId, selector.getActiveMode())) {
+        mDisplayModeController.updateKernelIdleTimer(displayId);
     }
 
     auto preferredModeOpt = getPreferredDisplayMode(displayId, currentPolicy.defaultMode);
@@ -8769,10 +7895,7 @@
     setDesiredMode({std::move(preferredMode), .emitEvent = true});
 
     // Update the frameRateOverride list as the display render rate might have changed
-    if (mScheduler->updateFrameRateOverrides(scheduler::GlobalSignals{}, preferredFps)) {
-        triggerOnFrameRateOverridesChanged();
-    }
-
+    mScheduler->updateFrameRateOverrides(scheduler::GlobalSignals{}, preferredFps);
     return NO_ERROR;
 }
 
@@ -8803,7 +7926,7 @@
 
 status_t SurfaceFlinger::setDesiredDisplayModeSpecs(const sp<IBinder>& displayToken,
                                                     const gui::DisplayModeSpecs& specs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!displayToken) {
         return BAD_VALUE;
@@ -8837,7 +7960,7 @@
 
 status_t SurfaceFlinger::getDesiredDisplayModeSpecs(const sp<IBinder>& displayToken,
                                                     gui::DisplayModeSpecs* outSpecs) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (!displayToken || !outSpecs) {
         return BAD_VALUE;
@@ -8865,7 +7988,7 @@
 void SurfaceFlinger::onLayerFirstRef(Layer* layer) {
     mNumLayers++;
     if (!layer->isRemovedFromCurrentState()) {
-        mScheduler->registerLayer(layer);
+        mScheduler->registerLayer(layer, scheduler::FrameRateCompatibility::Default);
     }
 }
 
@@ -8932,13 +8055,7 @@
 }
 
 status_t SurfaceFlinger::setGameModeFrameRateOverride(uid_t uid, float frameRate) {
-    PhysicalDisplayId displayId = [&]() {
-        Mutex::Autolock lock(mStateLock);
-        return getDefaultDisplayDeviceLocked()->getPhysicalId();
-    }();
-
-    mScheduler->setGameModeFrameRateForUid(FrameRateOverride{static_cast<uid_t>(uid), frameRate});
-    mScheduler->onFrameRateOverridesChanged(scheduler::Cycle::Render, displayId);
+    mScheduler->setGameModeFrameRateForUid(FrameRateOverride{uid, frameRate});
     return NO_ERROR;
 }
 
@@ -9129,7 +8246,7 @@
 
 void SurfaceFlinger::onActiveDisplayChangedLocked(const DisplayDevice* inactiveDisplayPtr,
                                                   const DisplayDevice& activeDisplay) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     if (inactiveDisplayPtr) {
         inactiveDisplayPtr->getCompositionDisplay()->setLayerCachingTexturePoolEnabled(false);
@@ -9263,170 +8380,52 @@
     return nullptr;
 }
 
-bool SurfaceFlinger::commitMirrorDisplays(VsyncId vsyncId) {
-    std::vector<MirrorDisplayState> mirrorDisplays;
-    {
-        std::scoped_lock<std::mutex> lock(mMirrorDisplayLock);
-        mirrorDisplays = std::move(mMirrorDisplays);
-        mMirrorDisplays.clear();
-        if (mirrorDisplays.size() == 0) {
-            return false;
-        }
-    }
-
-    sp<IBinder> unused;
-    for (const auto& mirrorDisplay : mirrorDisplays) {
-        // Set mirror layer's default layer stack to -1 so it doesn't end up rendered on a display
-        // accidentally.
-        sp<Layer> rootMirrorLayer = LayerHandle::getLayer(mirrorDisplay.rootHandle);
-        ssize_t idx = mCurrentState.layersSortedByZ.indexOf(rootMirrorLayer);
-        bool ret = rootMirrorLayer->setLayerStack(ui::LayerStack::fromValue(-1));
-        if (idx >= 0 && ret) {
-            mCurrentState.layersSortedByZ.removeAt(idx);
-            mCurrentState.layersSortedByZ.add(rootMirrorLayer);
-        }
-
-        for (const auto& layer : mDrawingState.layersSortedByZ) {
-            if (layer->getLayerStack() != mirrorDisplay.layerStack ||
-                layer->isInternalDisplayOverlay()) {
-                continue;
-            }
-
-            LayerCreationArgs mirrorArgs(this, mirrorDisplay.client, "MirrorLayerParent",
-                                         ISurfaceComposerClient::eNoColorFill,
-                                         gui::LayerMetadata());
-            sp<Layer> childMirror;
-            {
-                Mutex::Autolock lock(mStateLock);
-                createEffectLayer(mirrorArgs, &unused, &childMirror);
-                MUTEX_ALIAS(mStateLock, childMirror->mFlinger->mStateLock);
-                childMirror->setClonedChild(layer->createClone());
-                childMirror->reparent(mirrorDisplay.rootHandle);
-            }
-            // lock on mStateLock needs to be released before binder handle gets destroyed
-            unused.clear();
-        }
-    }
-    return true;
-}
-
-bool SurfaceFlinger::commitCreatedLayers(VsyncId vsyncId,
-                                         std::vector<LayerCreatedState>& createdLayers) {
-    if (createdLayers.size() == 0) {
-        return false;
-    }
-
-    Mutex::Autolock _l(mStateLock);
-    for (const auto& createdLayer : createdLayers) {
-        handleLayerCreatedLocked(createdLayer, vsyncId);
-    }
-    mLayersAdded = true;
-    return mLayersAdded;
-}
-
-void SurfaceFlinger::updateLayerMetadataSnapshot() {
-    LayerMetadata parentMetadata;
-    for (const auto& layer : mDrawingState.layersSortedByZ) {
-        layer->updateMetadataSnapshot(parentMetadata);
-    }
-
-    std::unordered_set<Layer*> visited;
-    mDrawingState.traverse([&visited](Layer* layer) {
-        if (visited.find(layer) != visited.end()) {
-            return;
-        }
-
-        // If the layer isRelativeOf, then either it's relative metadata will be set
-        // recursively when updateRelativeMetadataSnapshot is called on its relative parent or
-        // it's relative parent has been deleted. Clear the layer's relativeLayerMetadata to ensure
-        // that layers with deleted relative parents don't hold stale relativeLayerMetadata.
-        if (layer->getDrawingState().isRelativeOf) {
-            layer->editLayerSnapshot()->relativeLayerMetadata = {};
-            return;
-        }
-
-        layer->updateRelativeMetadataSnapshot({}, visited);
-    });
-}
-
 void SurfaceFlinger::moveSnapshotsFromCompositionArgs(
         compositionengine::CompositionRefreshArgs& refreshArgs,
         const std::vector<std::pair<Layer*, LayerFE*>>& layers) {
-    if (mLayerLifecycleManagerEnabled) {
-        std::vector<std::unique_ptr<frontend::LayerSnapshot>>& snapshots =
-                mLayerSnapshotBuilder.getSnapshots();
-        for (auto [_, layerFE] : layers) {
-            auto i = layerFE->mSnapshot->globalZ;
-            snapshots[i] = std::move(layerFE->mSnapshot);
-        }
-    }
-    if (!mLayerLifecycleManagerEnabled) {
-        for (auto [layer, layerFE] : layers) {
-            layer->updateLayerSnapshot(std::move(layerFE->mSnapshot));
-        }
+    std::vector<std::unique_ptr<frontend::LayerSnapshot>>& snapshots =
+            mLayerSnapshotBuilder.getSnapshots();
+    for (auto [_, layerFE] : layers) {
+        auto i = layerFE->mSnapshot->globalZ;
+        snapshots[i] = std::move(layerFE->mSnapshot);
     }
 }
 
 std::vector<std::pair<Layer*, LayerFE*>> SurfaceFlinger::moveSnapshotsToCompositionArgs(
         compositionengine::CompositionRefreshArgs& refreshArgs, bool cursorOnly) {
     std::vector<std::pair<Layer*, LayerFE*>> layers;
-    if (mLayerLifecycleManagerEnabled) {
-        nsecs_t currentTime = systemTime();
-        mLayerSnapshotBuilder.forEachVisibleSnapshot(
-                [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) FTL_FAKE_GUARD(
-                        kMainThreadContext) {
-                    if (cursorOnly &&
-                        snapshot->compositionType !=
-                                aidl::android::hardware::graphics::composer3::Composition::CURSOR) {
-                        return;
-                    }
-
-                    if (!snapshot->hasSomethingToDraw()) {
-                        return;
-                    }
-
-                    auto it = mLegacyLayers.find(snapshot->sequence);
-                    LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
-                                                    "Couldnt find layer object for %s",
-                                                    snapshot->getDebugString().c_str());
-                    auto& legacyLayer = it->second;
-                    sp<LayerFE> layerFE = legacyLayer->getCompositionEngineLayerFE(snapshot->path);
-                    snapshot->fps = getLayerFramerate(currentTime, snapshot->sequence);
-                    layerFE->mSnapshot = std::move(snapshot);
-                    refreshArgs.layers.push_back(layerFE);
-                    layers.emplace_back(legacyLayer.get(), layerFE.get());
-                });
-    }
-    if (!mLayerLifecycleManagerEnabled) {
-        auto moveSnapshots = [&layers, &refreshArgs, cursorOnly](Layer* layer) {
-            if (const auto& layerFE = layer->getCompositionEngineLayerFE()) {
+    nsecs_t currentTime = systemTime();
+    const bool needsMetadata = mCompositionEngine->getFeatureFlags().test(
+            compositionengine::Feature::kSnapshotLayerMetadata);
+    mLayerSnapshotBuilder.forEachSnapshot(
+            [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) FTL_FAKE_GUARD(
+                    kMainThreadContext) {
                 if (cursorOnly &&
-                    layer->getLayerSnapshot()->compositionType !=
-                            aidl::android::hardware::graphics::composer3::Composition::CURSOR)
+                    snapshot->compositionType !=
+                            aidl::android::hardware::graphics::composer3::Composition::CURSOR) {
                     return;
-                layer->updateSnapshot(refreshArgs.updatingGeometryThisFrame);
-                layerFE->mSnapshot = layer->stealLayerSnapshot();
+                }
+
+                if (!snapshot->hasSomethingToDraw()) {
+                    return;
+                }
+
+                auto it = mLegacyLayers.find(snapshot->sequence);
+                LLOG_ALWAYS_FATAL_WITH_TRACE_IF(it == mLegacyLayers.end(),
+                                                "Couldnt find layer object for %s",
+                                                snapshot->getDebugString().c_str());
+                auto& legacyLayer = it->second;
+                sp<LayerFE> layerFE = legacyLayer->getCompositionEngineLayerFE(snapshot->path);
+                snapshot->fps = getLayerFramerate(currentTime, snapshot->sequence);
+                layerFE->mSnapshot = std::move(snapshot);
                 refreshArgs.layers.push_back(layerFE);
-                layers.emplace_back(layer, layerFE.get());
-            }
-        };
-
-        if (cursorOnly || !mVisibleRegionsDirty) {
-            // for hot path avoid traversals by walking though the previous composition list
-            for (sp<Layer> layer : mPreviouslyComposedLayers) {
-                moveSnapshots(layer.get());
-            }
-        } else {
-            mPreviouslyComposedLayers.clear();
-            mDrawingState.traverseInZOrder(
-                    [&moveSnapshots](Layer* layer) { moveSnapshots(layer); });
-            mPreviouslyComposedLayers.reserve(layers.size());
-            for (auto [layer, _] : layers) {
-                mPreviouslyComposedLayers.push_back(sp<Layer>::fromExisting(layer));
-            }
-        }
-    }
-
+                layers.emplace_back(legacyLayer.get(), layerFE.get());
+            },
+            [needsMetadata](const frontend::LayerSnapshot& snapshot) {
+                return snapshot.isVisible ||
+                        (needsMetadata &&
+                         snapshot.changes.test(frontend::RequestedLayerState::Changes::Metadata));
+            });
     return layers;
 }
 
@@ -9553,33 +8552,6 @@
     };
 }
 
-frontend::Update SurfaceFlinger::flushLifecycleUpdates() {
-    frontend::Update update;
-    ATRACE_NAME("TransactionHandler:flushTransactions");
-    // Locking:
-    // 1. to prevent onHandleDestroyed from being called while the state lock is held,
-    // we must keep a copy of the transactions (specifically the composer
-    // states) around outside the scope of the lock.
-    // 2. Transactions and created layers do not share a lock. To prevent applying
-    // transactions with layers still in the createdLayer queue, flush the transactions
-    // before committing the created layers.
-    mTransactionHandler.collectTransactions();
-    update.transactions = mTransactionHandler.flushTransactions();
-    {
-        // TODO(b/238781169) lockless queue this and keep order.
-        std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-        update.layerCreatedStates = std::move(mCreatedLayers);
-        mCreatedLayers.clear();
-        update.newLayers = std::move(mNewLayers);
-        mNewLayers.clear();
-        update.layerCreationArgs = std::move(mNewLayerArgs);
-        mNewLayerArgs.clear();
-        update.destroyedHandles = std::move(mDestroyedHandles);
-        mDestroyedHandles.clear();
-    }
-    return update;
-}
-
 void SurfaceFlinger::doActiveLayersTracingIfNeeded(bool isCompositionComputed,
                                                    bool visibleRegionDirty, TimePoint time,
                                                    VsyncId vsyncId) {
@@ -9601,7 +8573,7 @@
 
 perfetto::protos::LayersSnapshotProto SurfaceFlinger::takeLayersSnapshotProto(
         uint32_t traceFlags, TimePoint time, VsyncId vsyncId, bool visibleRegionDirty) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     perfetto::protos::LayersSnapshotProto snapshot;
     snapshot.set_elapsed_realtime_nanos(time.ns());
     snapshot.set_vsync_id(ftl::to_underlying(vsyncId));
@@ -10491,6 +9463,28 @@
     return ::android::binder::Status::ok();
 }
 
+binder::Status SurfaceComposerAIDL::addJankListener(const sp<IBinder>& layerHandle,
+                                                    const sp<gui::IJankListener>& listener) {
+    sp<Layer> layer = LayerHandle::getLayer(layerHandle);
+    if (layer == nullptr) {
+        return binder::Status::fromExceptionCode(binder::Status::EX_NULL_POINTER);
+    }
+    JankTracker::addJankListener(layer->sequence, IInterface::asBinder(listener));
+    return binder::Status::ok();
+}
+
+binder::Status SurfaceComposerAIDL::flushJankData(int32_t layerId) {
+    JankTracker::flushJankData(layerId);
+    return binder::Status::ok();
+}
+
+binder::Status SurfaceComposerAIDL::removeJankListener(int32_t layerId,
+                                                       const sp<gui::IJankListener>& listener,
+                                                       int64_t afterVsync) {
+    JankTracker::removeJankListener(layerId, IInterface::asBinder(listener), afterVsync);
+    return binder::Status::ok();
+}
+
 status_t SurfaceComposerAIDL::checkAccessPermission(bool usePermissionCache) {
     if (!mFlinger->callingThreadHasUnscopedSurfaceFlingerAccess(usePermissionCache)) {
         IPCThreadState* ipc = IPCThreadState::self();
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index a3534b5..651f2d3 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -27,7 +27,9 @@
 #include <android/gui/BnSurfaceComposer.h>
 #include <android/gui/DisplayStatInfo.h>
 #include <android/gui/DisplayState.h>
+#include <android/gui/IJankListener.h>
 #include <android/gui/ISurfaceComposerClient.h>
+#include <common/trace.h>
 #include <cutils/atomic.h>
 #include <cutils/compiler.h>
 #include <ftl/algorithm.h>
@@ -52,7 +54,6 @@
 #include <utils/KeyedVector.h>
 #include <utils/RefBase.h>
 #include <utils/SortedVector.h>
-#include <utils/Trace.h>
 #include <utils/threads.h>
 
 #include <compositionengine/OutputColorSetting.h>
@@ -272,7 +273,7 @@
     enum class FrameHint { kNone, kActive };
 
     // Schedule commit of transactions on the main thread ahead of the next VSYNC.
-    void scheduleCommit(FrameHint);
+    void scheduleCommit(FrameHint, Duration workDurationSlack = Duration::fromNs(0));
     // As above, but also force composite regardless if transactions were committed.
     void scheduleComposite(FrameHint);
     // As above, but also force dirty geometry to repaint.
@@ -312,7 +313,6 @@
     // Disables expensive rendering for all displays
     // This is scheduled on the main thread
     void disableExpensiveRendering();
-    FloatRect getMaxDisplayBounds();
 
     // If set, composition engine tries to predict the composition strategy provided by HWC
     // based on the previous frame. If the strategy can be predicted, gpu composition will
@@ -449,7 +449,7 @@
             if (it != mCounterByLayerHandle.end()) {
                 auto [name, pendingBuffers] = it->second;
                 int32_t count = ++(*pendingBuffers);
-                ATRACE_INT(name.c_str(), count);
+                SFTRACE_INT(name.c_str(), count);
             } else {
                 ALOGW("Handle not found! %p", layerHandle);
             }
@@ -559,7 +559,7 @@
     sp<IBinder> getPhysicalDisplayToken(PhysicalDisplayId displayId) const;
     status_t setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& state,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             InputWindowCommands inputWindowCommands, int64_t desiredPresentTime,
             bool isAutoTimestamp, const std::vector<client_cache_t>& uncacheBuffers,
             bool hasListenerCallbacks, const std::vector<ListenerCallbacks>& listenerCallbacks,
@@ -697,7 +697,6 @@
     void requestHardwareVsync(PhysicalDisplayId, bool) override;
     void requestDisplayModes(std::vector<display::DisplayModeRequest>) override;
     void kernelTimerChanged(bool expired) override;
-    void triggerOnFrameRateOverridesChanged() override;
     void onChoreographerAttached() override;
     void onExpectedPresentTimePosted(TimePoint expectedPresentTime, ftl::NonNull<DisplayModePtr>,
                                      Fps renderRate) override;
@@ -708,22 +707,13 @@
     // ICEPowerCallback overrides:
     void notifyCpuLoadUp() override;
 
-    // Toggles the kernel idle timer on or off depending the policy decisions around refresh rates.
-    void toggleKernelIdleTimer() REQUIRES(mStateLock);
-
     using KernelIdleTimerController = scheduler::RefreshRateSelector::KernelIdleTimerController;
 
     // Get the controller and timeout that will help decide how the kernel idle timer will be
     // configured and what value to use as the timeout.
     std::pair<std::optional<KernelIdleTimerController>, std::chrono::milliseconds>
             getKernelIdleTimerProperties(PhysicalDisplayId) REQUIRES(mStateLock);
-    // Updates the kernel idle timer either through HWC or through sysprop
-    // depending on which controller is provided
-    void updateKernelIdleTimer(std::chrono::milliseconds timeoutMs, KernelIdleTimerController,
-                               PhysicalDisplayId) REQUIRES(mStateLock);
-    // Keeps track of whether the kernel idle timer is currently enabled, so we don't have to
-    // make calls to sys prop each time.
-    bool mKernelIdleTimerEnabled = false;
+
     // Show spinner with refresh rate overlay
     bool mRefreshRateOverlaySpinner = false;
     // Show render rate with refresh rate overlay
@@ -763,17 +753,11 @@
                                             const scheduler::RefreshRateSelector&)
             REQUIRES(mStateLock, kMainThreadContext);
 
-    void commitTransactionsLegacy() EXCLUDES(mStateLock) REQUIRES(kMainThreadContext);
     void commitTransactions() REQUIRES(kMainThreadContext, mStateLock);
     void commitTransactionsLocked(uint32_t transactionFlags)
             REQUIRES(mStateLock, kMainThreadContext);
     void doCommitTransactions() REQUIRES(mStateLock);
 
-    // Returns whether a new buffer has been latched.
-    bool latchBuffers();
-
-    void updateLayerGeometry();
-    void updateLayerMetadataSnapshot();
     std::vector<std::pair<Layer*, LayerFE*>> moveSnapshotsToCompositionArgs(
             compositionengine::CompositionRefreshArgs& refreshArgs, bool cursorOnly)
             REQUIRES(kMainThreadContext);
@@ -781,13 +765,9 @@
                                           const std::vector<std::pair<Layer*, LayerFE*>>& layers)
             REQUIRES(kMainThreadContext);
     // Return true if we must composite this frame
-    bool updateLayerSnapshotsLegacy(VsyncId vsyncId, nsecs_t frameTimeNs, bool transactionsFlushed,
-                                    bool& out) REQUIRES(kMainThreadContext);
-    // Return true if we must composite this frame
     bool updateLayerSnapshots(VsyncId vsyncId, nsecs_t frameTimeNs, bool transactionsFlushed,
                               bool& out) REQUIRES(kMainThreadContext);
     void updateLayerHistory(nsecs_t now) REQUIRES(kMainThreadContext);
-    frontend::Update flushLifecycleUpdates() REQUIRES(kMainThreadContext);
 
     void updateInputFlinger(VsyncId vsyncId, TimePoint frameTime) REQUIRES(kMainThreadContext);
     void persistDisplayBrightness(bool needsComposite) REQUIRES(kMainThreadContext);
@@ -826,16 +806,10 @@
     TransactionHandler::TransactionReadiness transactionReadyTimelineCheck(
             const TransactionHandler::TransactionFlushState& flushState)
             REQUIRES(kMainThreadContext);
-    TransactionHandler::TransactionReadiness transactionReadyBufferCheckLegacy(
-            const TransactionHandler::TransactionFlushState& flushState)
-            REQUIRES(kMainThreadContext);
     TransactionHandler::TransactionReadiness transactionReadyBufferCheck(
             const TransactionHandler::TransactionFlushState& flushState)
             REQUIRES(kMainThreadContext);
 
-    uint32_t setClientStateLocked(const FrameTimelineInfo&, ResolvedComposerState&,
-                                  int64_t desiredPresentTime, bool isAutoTimestamp,
-                                  int64_t postTime, uint64_t transactionId) REQUIRES(mStateLock);
     uint32_t updateLayerCallbacksAndStats(const FrameTimelineInfo&, ResolvedComposerState&,
                                           int64_t desiredPresentTime, bool isAutoTimestamp,
                                           int64_t postTime, uint64_t transactionId)
@@ -885,9 +859,6 @@
                             const sp<Layer>& layer, const wp<Layer>& parentLayer,
                             uint32_t* outTransformHint);
 
-    // Traverse through all the layers and compute and cache its bounds.
-    void computeLayerBounds();
-
     // Creates a promise for a future release fence for a layer. This allows for
     // the layer to keep track of when its buffer can be released.
     void attachReleaseFenceFutureToLayer(Layer* layer, LayerFE* layerFE, ui::LayerStack layerStack);
@@ -897,7 +868,7 @@
 
     using OutputCompositionState = compositionengine::impl::OutputCompositionState;
 
-    std::optional<OutputCompositionState> getDisplayAndLayerSnapshotsFromMainThread(
+    std::optional<OutputCompositionState> getSnapshotsFromMainThread(
             RenderAreaBuilderVariant& renderAreaBuilder,
             GetLayerSnapshotsFunction getLayerSnapshotsFn, std::vector<sp<LayerFE>>& layerFEs);
 
@@ -934,12 +905,6 @@
             std::vector<std::pair<Layer*, sp<LayerFE>>>& layers,
             std::vector<sp<LayerFE>>& layerFEs);
 
-    // If the uid provided is not UNSET_UID, the traverse will skip any layers that don't have a
-    // matching ownerUid
-    void traverseLayersInLayerStack(ui::LayerStack, const int32_t uid,
-                                    std::unordered_set<uint32_t> excludeLayerIds,
-                                    const LayerVector::Visitor&);
-
     void readPersistentProperties();
 
     uint32_t getMaxAcquiredBufferCountForCurrentRefreshRate(uid_t uid) const;
@@ -988,18 +953,12 @@
         return nullptr;
     }
 
-    // Returns the primary display or (for foldables) the active display, assuming that the inner
-    // and outer displays have mutually exclusive power states.
+    // Returns the primary display or (for foldables) the active display.
     sp<const DisplayDevice> getDefaultDisplayDeviceLocked() const REQUIRES(mStateLock) {
         return const_cast<SurfaceFlinger*>(this)->getDefaultDisplayDeviceLocked();
     }
 
     sp<DisplayDevice> getDefaultDisplayDeviceLocked() REQUIRES(mStateLock) {
-        if (const auto display = getDisplayDeviceLocked(mActiveDisplayId)) {
-            return display;
-        }
-        // The active display is outdated, so fall back to the primary display.
-        mActiveDisplayId = getPrimaryDisplayIdLocked();
         return getDisplayDeviceLocked(mActiveDisplayId);
     }
 
@@ -1099,13 +1058,6 @@
                                const DisplayDeviceState& drawingState)
             REQUIRES(mStateLock, kMainThreadContext);
 
-    void dispatchDisplayModeChangeEvent(PhysicalDisplayId, const scheduler::FrameRateMode&);
-
-    /*
-     * VSYNC
-     */
-    nsecs_t getVsyncPeriodFromHWC() const REQUIRES(mStateLock);
-
     /*
      * Display identification
      */
@@ -1156,7 +1108,6 @@
     void dumpAll(const DumpArgs& args, const std::string& compositionLayers,
                  std::string& result) const EXCLUDES(mStateLock);
     void dumpHwcLayersMinidump(std::string& result) const REQUIRES(mStateLock, kMainThreadContext);
-    void dumpHwcLayersMinidumpLockedLegacy(std::string& result) const REQUIRES(mStateLock);
 
     void appendSfConfigString(std::string& result) const;
     void listLayers(std::string& result) const REQUIRES(kMainThreadContext);
@@ -1183,7 +1134,8 @@
     perfetto::protos::LayersProto dumpDrawingStateProto(uint32_t traceFlags) const
             REQUIRES(kMainThreadContext);
     void dumpOffscreenLayersProto(perfetto::protos::LayersProto& layersProto,
-                                  uint32_t traceFlags = LayerTracing::TRACE_ALL) const;
+                                  uint32_t traceFlags = LayerTracing::TRACE_ALL) const
+            REQUIRES(kMainThreadContext);
     google::protobuf::RepeatedPtrField<perfetto::protos::DisplayProto> dumpDisplayProto() const;
     void doActiveLayersTracingIfNeeded(bool isCompositionComputed, bool visibleRegionDirty,
                                        TimePoint, VsyncId) REQUIRES(kMainThreadContext);
@@ -1299,18 +1251,20 @@
     bool mForceTransactionDisplayChange = false;
     bool mUpdateAttachedChoreographer = false;
 
-    // Set if LayerMetadata has changed since the last LayerMetadata snapshot.
-    bool mLayerMetadataSnapshotNeeded = false;
+    struct LayerIntHash {
+        size_t operator()(const std::pair<sp<Layer>, gui::GameMode>& k) const {
+            return std::hash<Layer*>()(k.first.get()) ^
+                    std::hash<int32_t>()(static_cast<int32_t>(k.second));
+        }
+    };
 
     // TODO(b/238781169) validate these on composition
     // Tracks layers that have pending frames which are candidates for being
     // latched.
-    std::unordered_set<sp<Layer>, SpHash<Layer>> mLayersWithQueuedFrames;
+    std::unordered_set<std::pair<sp<Layer>, gui::GameMode>, LayerIntHash> mLayersWithQueuedFrames;
     std::unordered_set<sp<Layer>, SpHash<Layer>> mLayersWithBuffersRemoved;
     std::unordered_set<uint32_t> mLayersIdsWithQueuedFrames;
 
-    // Tracks layers that need to update a display's dirty region.
-    std::vector<sp<Layer>> mLayersPendingRefresh;
     // Sorted list of layers that were composed during previous frame. This is used to
     // avoid an expensive traversal of the layer hierarchy when there are no
     // visible region changes. Because this is a list of strong pointers, this will
@@ -1338,7 +1292,7 @@
 
     display::PhysicalDisplays mPhysicalDisplays GUARDED_BY(mStateLock);
 
-    // The inner or outer display for foldables, assuming they have mutually exclusive power states.
+    // The inner or outer display for foldables, while unfolded or folded, respectively.
     std::atomic<PhysicalDisplayId> mActiveDisplayId;
 
     display::DisplayModeController mDisplayModeController;
@@ -1455,22 +1409,8 @@
     // A temporay pool that store the created layers and will be added to current state in main
     // thread.
     std::vector<LayerCreatedState> mCreatedLayers GUARDED_BY(mCreatedLayersLock);
-    bool commitCreatedLayers(VsyncId, std::vector<LayerCreatedState>& createdLayers);
     void handleLayerCreatedLocked(const LayerCreatedState&, VsyncId) REQUIRES(mStateLock);
 
-    mutable std::mutex mMirrorDisplayLock;
-    struct MirrorDisplayState {
-        MirrorDisplayState(ui::LayerStack layerStack, sp<IBinder>& rootHandle,
-                           const sp<Client>& client)
-              : layerStack(layerStack), rootHandle(rootHandle), client(client) {}
-
-        ui::LayerStack layerStack;
-        sp<IBinder> rootHandle;
-        const sp<Client> client;
-    };
-    std::vector<MirrorDisplayState> mMirrorDisplays GUARDED_BY(mMirrorDisplayLock);
-    bool commitMirrorDisplays(VsyncId);
-
     std::atomic<ui::Transform::RotationFlags> mActiveDisplayTransformHint;
 
     // Must only be accessed on the main thread.
@@ -1504,8 +1444,6 @@
     }
 
     bool mPowerHintSessionEnabled;
-
-    bool mLayerLifecycleManagerEnabled = false;
     // Whether a display should be turned on when initialized
     bool mSkipPowerOnForQuiescent;
 
@@ -1694,6 +1632,11 @@
             int pid, std::optional<gui::StalledTransactionInfo>* outInfo) override;
     binder::Status getSchedulingPolicy(gui::SchedulingPolicy* outPolicy) override;
     binder::Status notifyShutdown() override;
+    binder::Status addJankListener(const sp<IBinder>& layer,
+                                   const sp<gui::IJankListener>& listener) override;
+    binder::Status flushJankData(int32_t layerId) override;
+    binder::Status removeJankListener(int32_t layerId, const sp<gui::IJankListener>& listener,
+                                      int64_t afterVsync) override;
 
 private:
     static const constexpr bool kUsePermissionCache = true;
diff --git a/services/surfaceflinger/TimeStats/Android.bp b/services/surfaceflinger/TimeStats/Android.bp
index a631074..a6a0152 100644
--- a/services/surfaceflinger/TimeStats/Android.bp
+++ b/services/surfaceflinger/TimeStats/Android.bp
@@ -20,10 +20,12 @@
         "libtimestats_atoms_proto",
         "libui",
         "libutils",
+        "libtracing_perfetto",
     ],
 
     static_libs: [
         "libtimestats_proto",
+        "libsurfaceflinger_common",
     ],
 
     export_static_lib_headers: [
diff --git a/services/surfaceflinger/TimeStats/TimeStats.cpp b/services/surfaceflinger/TimeStats/TimeStats.cpp
index 368cb41..c60ded6 100644
--- a/services/surfaceflinger/TimeStats/TimeStats.cpp
+++ b/services/surfaceflinger/TimeStats/TimeStats.cpp
@@ -19,11 +19,11 @@
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
 #include <android-base/stringprintf.h>
+#include <common/trace.h>
 #include <log/log.h>
 #include <timestatsatomsproto/TimeStatsAtomsProtoHeader.h>
 #include <utils/String8.h>
 #include <utils/Timers.h>
-#include <utils/Trace.h>
 
 #include <algorithm>
 #include <chrono>
@@ -271,7 +271,7 @@
 }
 
 void TimeStats::parseArgs(bool asProto, const Vector<String16>& args, std::string& result) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::unordered_map<std::string, int32_t> argsMap;
     for (size_t index = 0; index < args.size(); ++index) {
@@ -304,7 +304,7 @@
 }
 
 std::string TimeStats::miniDump() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::string result = "TimeStats miniDump:\n";
     std::lock_guard<std::mutex> lock(mMutex);
@@ -318,7 +318,7 @@
 void TimeStats::incrementTotalFrames() {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     mTimeStats.totalFramesLegacy++;
@@ -327,7 +327,7 @@
 void TimeStats::incrementMissedFrames() {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     mTimeStats.missedFramesLegacy++;
@@ -338,7 +338,7 @@
         return;
     }
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     if (record.changed) mTimeStats.compositionStrategyChangesLegacy++;
@@ -351,7 +351,7 @@
 void TimeStats::incrementRefreshRateSwitches() {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     mTimeStats.refreshRateSwitchesLegacy++;
@@ -445,7 +445,7 @@
                                                    std::optional<Fps> renderRate,
                                                    SetFrameRateVote frameRateVote,
                                                    GameMode gameMode) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-flushAvailableRecordsToStatsLocked", layerId);
 
     LayerRecord& layerRecord = mTimeStatsTracker[layerId];
@@ -568,7 +568,7 @@
                             uid_t uid, nsecs_t postTime, GameMode gameMode) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-[%s]-PostTime[%" PRId64 "]", layerId, frameNumber, layerName.c_str(),
           postTime);
 
@@ -612,7 +612,7 @@
 void TimeStats::setLatchTime(int32_t layerId, uint64_t frameNumber, nsecs_t latchTime) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-LatchTime[%" PRId64 "]", layerId, frameNumber, latchTime);
 
     std::lock_guard<std::mutex> lock(mMutex);
@@ -630,7 +630,7 @@
 void TimeStats::incrementLatchSkipped(int32_t layerId, LatchSkipReason reason) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-LatchSkipped-Reason[%d]", layerId,
           static_cast<std::underlying_type<LatchSkipReason>::type>(reason));
 
@@ -648,7 +648,7 @@
 void TimeStats::incrementBadDesiredPresent(int32_t layerId) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-BadDesiredPresent", layerId);
 
     std::lock_guard<std::mutex> lock(mMutex);
@@ -660,7 +660,7 @@
 void TimeStats::setDesiredTime(int32_t layerId, uint64_t frameNumber, nsecs_t desiredTime) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-DesiredTime[%" PRId64 "]", layerId, frameNumber, desiredTime);
 
     std::lock_guard<std::mutex> lock(mMutex);
@@ -678,7 +678,7 @@
 void TimeStats::setAcquireTime(int32_t layerId, uint64_t frameNumber, nsecs_t acquireTime) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-AcquireTime[%" PRId64 "]", layerId, frameNumber, acquireTime);
 
     std::lock_guard<std::mutex> lock(mMutex);
@@ -697,7 +697,7 @@
                                 const std::shared_ptr<FenceTime>& acquireFence) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-AcquireFenceTime[%" PRId64 "]", layerId, frameNumber,
           acquireFence->getSignalTime());
 
@@ -718,7 +718,7 @@
                                SetFrameRateVote frameRateVote, GameMode gameMode) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-PresentTime[%" PRId64 "]", layerId, frameNumber, presentTime);
 
     std::lock_guard<std::mutex> lock(mMutex);
@@ -744,7 +744,7 @@
                                 SetFrameRateVote frameRateVote, GameMode gameMode) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-PresentFenceTime[%" PRId64 "]", layerId, frameNumber,
           presentFence->getSignalTime());
 
@@ -805,7 +805,7 @@
 void TimeStats::incrementJankyFrames(const JankyFramesInfo& info) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard<std::mutex> lock(mMutex);
 
     // Only update layer stats if we're already tracking the layer in TimeStats.
@@ -861,7 +861,7 @@
 }
 
 void TimeStats::onDestroy(int32_t layerId) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-onDestroy", layerId);
     std::lock_guard<std::mutex> lock(mMutex);
     mTimeStatsTracker.erase(layerId);
@@ -870,7 +870,7 @@
 void TimeStats::removeTimeRecord(int32_t layerId, uint64_t frameNumber) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     ALOGV("[%d]-[%" PRIu64 "]-removeTimeRecord", layerId, frameNumber);
 
     std::lock_guard<std::mutex> lock(mMutex);
@@ -935,7 +935,7 @@
 }
 
 void TimeStats::flushAvailableGlobalRecordsToStatsLocked() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     while (!mGlobalRecord.presentFences.empty()) {
         const nsecs_t curPresentTime = mGlobalRecord.presentFences.front()->getSignalTime();
@@ -992,7 +992,7 @@
 void TimeStats::setPresentFenceGlobal(const std::shared_ptr<FenceTime>& presentFence) {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
     std::lock_guard<std::mutex> lock(mMutex);
     if (presentFence == nullptr || !presentFence->isValid()) {
         mGlobalRecord.prevPresentTime = 0;
@@ -1022,7 +1022,7 @@
 void TimeStats::enable() {
     if (mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     mEnabled.store(true);
@@ -1034,7 +1034,7 @@
 void TimeStats::disable() {
     if (!mEnabled.load()) return;
 
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     flushPowerTimeLocked();
@@ -1051,7 +1051,7 @@
 }
 
 void TimeStats::clearGlobalLocked() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     mTimeStats.statsStartLegacy = (mEnabled.load() ? static_cast<int64_t>(std::time(0)) : 0);
     mTimeStats.statsEndLegacy = 0;
@@ -1078,7 +1078,7 @@
 }
 
 void TimeStats::clearLayersLocked() {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     mTimeStatsTracker.clear();
 
@@ -1093,7 +1093,7 @@
 }
 
 void TimeStats::dump(bool asProto, std::optional<uint32_t> maxLayers, std::string& result) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
 
     std::lock_guard<std::mutex> lock(mMutex);
     if (mTimeStats.statsStartLegacy == 0) {
diff --git a/services/surfaceflinger/TracedOrdinal.h b/services/surfaceflinger/TracedOrdinal.h
index 1adc3a5..51f33a6 100644
--- a/services/surfaceflinger/TracedOrdinal.h
+++ b/services/surfaceflinger/TracedOrdinal.h
@@ -21,8 +21,8 @@
 #include <functional>
 #include <string>
 
+#include <common/trace.h>
 #include <cutils/compiler.h>
-#include <utils/Trace.h>
 
 namespace android {
 
@@ -79,7 +79,7 @@
 
 private:
     void trace() {
-        if (CC_LIKELY(!ATRACE_ENABLED())) {
+        if (CC_LIKELY(!SFTRACE_ENABLED())) {
             return;
         }
 
@@ -88,13 +88,13 @@
         }
 
         if (!signbit(mData)) {
-            ATRACE_INT64(mName.c_str(), to_int64(mData));
+            SFTRACE_INT64(mName.c_str(), to_int64(mData));
             if (mHasGoneNegative) {
-                ATRACE_INT64(mNameNegative.c_str(), 0);
+                SFTRACE_INT64(mNameNegative.c_str(), 0);
             }
         } else {
-            ATRACE_INT64(mNameNegative.c_str(), -to_int64(mData));
-            ATRACE_INT64(mName.c_str(), 0);
+            SFTRACE_INT64(mNameNegative.c_str(), -to_int64(mData));
+            SFTRACE_INT64(mName.c_str(), 0);
         }
     }
 
diff --git a/services/surfaceflinger/Tracing/LayerTracing.cpp b/services/surfaceflinger/Tracing/LayerTracing.cpp
index 41bcdf0..d40b888 100644
--- a/services/surfaceflinger/Tracing/LayerTracing.cpp
+++ b/services/surfaceflinger/Tracing/LayerTracing.cpp
@@ -24,10 +24,10 @@
 #include "Tracing/tools/LayerTraceGenerator.h"
 #include "TransactionTracing.h"
 
+#include <common/trace.h>
 #include <log/log.h>
 #include <perfetto/tracing.h>
 #include <utils/Timers.h>
-#include <utils/Trace.h>
 
 namespace android {
 
@@ -134,7 +134,7 @@
 
 void LayerTracing::addProtoSnapshotToOstream(perfetto::protos::LayersSnapshotProto&& snapshot,
                                              Mode mode) {
-    ATRACE_CALL();
+    SFTRACE_CALL();
     if (mOutStream) {
         writeSnapshotToStream(std::move(snapshot));
     } else {
diff --git a/services/surfaceflinger/Tracing/TransactionRingBuffer.h b/services/surfaceflinger/Tracing/TransactionRingBuffer.h
index 7d1d3fd..2b66391 100644
--- a/services/surfaceflinger/Tracing/TransactionRingBuffer.h
+++ b/services/surfaceflinger/Tracing/TransactionRingBuffer.h
@@ -19,13 +19,12 @@
 #include <android-base/file.h>
 #include <android-base/stringprintf.h>
 
+#include <common/trace.h>
 #include <log/log.h>
 #include <utils/Errors.h>
 #include <utils/Timers.h>
-#include <utils/Trace.h>
 #include <chrono>
 #include <fstream>
-#include <queue>
 
 namespace android {
 
@@ -57,7 +56,7 @@
     }
 
     status_t appendToStream(FileProto& fileProto, std::ofstream& out) {
-        ATRACE_CALL();
+        SFTRACE_CALL();
         writeToProto(fileProto);
         std::string output;
         if (!fileProto.SerializeToString(&output)) {
diff --git a/services/surfaceflinger/Tracing/tools/Android.bp b/services/surfaceflinger/Tracing/tools/Android.bp
index 8afca41..63c1b37 100644
--- a/services/surfaceflinger/Tracing/tools/Android.bp
+++ b/services/surfaceflinger/Tracing/tools/Android.bp
@@ -28,6 +28,7 @@
         "libsurfaceflinger_mocks_defaults",
         "librenderengine_deps",
         "surfaceflinger_defaults",
+        "libsurfaceflinger_common_deps",
     ],
     srcs: [
         ":libsurfaceflinger_sources",
diff --git a/services/surfaceflinger/TransactionCallbackInvoker.cpp b/services/surfaceflinger/TransactionCallbackInvoker.cpp
index 222ae30..881bf35 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.cpp
+++ b/services/surfaceflinger/TransactionCallbackInvoker.cpp
@@ -27,10 +27,9 @@
 #include "BackgroundExecutor.h"
 #include "Utils/FenceUtils.h"
 
-#include <cinttypes>
-
 #include <binder/IInterface.h>
 #include <common/FlagManager.h>
+#include <common/trace.h>
 #include <utils/RefBase.h>
 
 namespace android {
@@ -64,13 +63,12 @@
     if (handles.empty()) {
         return NO_ERROR;
     }
-    const std::vector<JankData>& jankData = std::vector<JankData>();
     for (const auto& handle : handles) {
         if (!containsOnCommitCallbacks(handle->callbackIds)) {
             outRemainingHandles.push_back(handle);
             continue;
         }
-        status_t err = addCallbackHandle(handle, jankData);
+        status_t err = addCallbackHandle(handle);
         if (err != NO_ERROR) {
             return err;
         }
@@ -80,12 +78,12 @@
 }
 
 status_t TransactionCallbackInvoker::addCallbackHandles(
-        const std::deque<sp<CallbackHandle>>& handles, const std::vector<JankData>& jankData) {
+        const std::deque<sp<CallbackHandle>>& handles) {
     if (handles.empty()) {
         return NO_ERROR;
     }
     for (const auto& handle : handles) {
-        status_t err = addCallbackHandle(handle, jankData);
+        status_t err = addCallbackHandle(handle);
         if (err != NO_ERROR) {
             return err;
         }
@@ -111,8 +109,7 @@
     return NO_ERROR;
 }
 
-status_t TransactionCallbackInvoker::addCallbackHandle(const sp<CallbackHandle>& handle,
-        const std::vector<JankData>& jankData) {
+status_t TransactionCallbackInvoker::addCallbackHandle(const sp<CallbackHandle>& handle) {
     // If we can't find the transaction stats something has gone wrong. The client should call
     // startRegistration before trying to add a callback handle.
     TransactionStats* transactionStats;
@@ -151,8 +148,7 @@
                                                     handle->previousReleaseFence,
                                                     handle->transformHint,
                                                     handle->currentMaxAcquiredBufferCount,
-                                                    eventStats, jankData,
-                                                    handle->previousReleaseCallbackId);
+                                                    eventStats, handle->previousReleaseCallbackId);
     }
     return NO_ERROR;
 }
@@ -164,7 +160,7 @@
 void TransactionCallbackInvoker::sendCallbacks(bool onCommitOnly) {
     // For each listener
     auto completedTransactionsItr = mCompletedTransactions.begin();
-    BackgroundExecutor::Callbacks callbacks;
+    ftl::SmallVector<ListenerStats, 10> listenerStatsToSend;
     while (completedTransactionsItr != mCompletedTransactions.end()) {
         auto& [listener, transactionStatsDeque] = *completedTransactionsItr;
         ListenerStats listenerStats;
@@ -199,10 +195,7 @@
                 // keep it as an IBinder due to consistency reasons: if we
                 // interface_cast at the IPC boundary when reading a Parcel,
                 // we get pointers that compare unequal in the SF process.
-                callbacks.emplace_back([stats = std::move(listenerStats)]() {
-                    interface_cast<ITransactionCompletedListener>(stats.listener)
-                            ->onTransactionCompleted(stats);
-                });
+                listenerStatsToSend.emplace_back(std::move(listenerStats));
             }
         }
         completedTransactionsItr++;
@@ -212,7 +205,14 @@
         mPresentFence.clear();
     }
 
-    BackgroundExecutor::getInstance().sendCallbacks(std::move(callbacks));
+    BackgroundExecutor::getInstance().sendCallbacks(
+            {[listenerStatsToSend = std::move(listenerStatsToSend)]() {
+                SFTRACE_NAME("TransactionCallbackInvoker::sendCallbacks");
+                for (auto& stats : listenerStatsToSend) {
+                    interface_cast<ITransactionCompletedListener>(stats.listener)
+                            ->onTransactionCompleted(stats);
+                }
+            }});
 }
 
 // -----------------------------------------------------------------------
diff --git a/services/surfaceflinger/TransactionCallbackInvoker.h b/services/surfaceflinger/TransactionCallbackInvoker.h
index cb7150b..7853a9f 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.h
+++ b/services/surfaceflinger/TransactionCallbackInvoker.h
@@ -63,8 +63,7 @@
 
 class TransactionCallbackInvoker {
 public:
-    status_t addCallbackHandles(const std::deque<sp<CallbackHandle>>& handles,
-                                const std::vector<JankData>& jankData);
+    status_t addCallbackHandles(const std::deque<sp<CallbackHandle>>& handles);
     status_t addOnCommitCallbackHandles(const std::deque<sp<CallbackHandle>>& handles,
                                              std::deque<sp<CallbackHandle>>& outRemainingHandles);
 
@@ -77,9 +76,7 @@
         mCompletedTransactions.clear();
     }
 
-    status_t addCallbackHandle(const sp<CallbackHandle>& handle,
-                               const std::vector<JankData>& jankData);
-
+    status_t addCallbackHandle(const sp<CallbackHandle>& handle);
 
 private:
     status_t findOrCreateTransactionStats(const sp<IBinder>& listener,
diff --git a/services/surfaceflinger/Utils/RingBuffer.h b/services/surfaceflinger/Utils/RingBuffer.h
index 198e7b2..215472b 100644
--- a/services/surfaceflinger/Utils/RingBuffer.h
+++ b/services/surfaceflinger/Utils/RingBuffer.h
@@ -43,8 +43,10 @@
     }
 
     T& front() { return (*this)[0]; }
+    const T& front() const { return (*this)[0]; }
 
     T& back() { return (*this)[size() - 1]; }
+    const T& back() const { return (*this)[size() - 1]; }
 
     T& operator[](size_t index) {
         return mBuffer[(static_cast<size_t>(mHead + 1) + index) % mCount];
diff --git a/services/surfaceflinger/WindowInfosListenerInvoker.cpp b/services/surfaceflinger/WindowInfosListenerInvoker.cpp
index effbfdb..895e054 100644
--- a/services/surfaceflinger/WindowInfosListenerInvoker.cpp
+++ b/services/surfaceflinger/WindowInfosListenerInvoker.cpp
@@ -17,8 +17,8 @@
 #include <android/gui/BnWindowInfosPublisher.h>
 #include <android/gui/IWindowInfosPublisher.h>
 #include <android/gui/WindowInfosListenerInfo.h>
+#include <common/trace.h>
 #include <gui/ISurfaceComposer.h>
-#include <gui/TraceUtils.h>
 #include <gui/WindowInfosUpdate.h>
 #include <scheduler/Time.h>
 
@@ -42,7 +42,7 @@
 
     BackgroundExecutor::getInstance().sendCallbacks(
             {[this, listener = std::move(listener), listenerId]() {
-                ATRACE_NAME("WindowInfosListenerInvoker::addWindowInfosListener");
+                SFTRACE_NAME("WindowInfosListenerInvoker::addWindowInfosListener");
                 sp<IBinder> asBinder = IInterface::asBinder(listener);
                 asBinder->linkToDeath(sp<DeathRecipient>::fromExisting(this));
                 mWindowInfosListeners.try_emplace(asBinder,
@@ -53,7 +53,7 @@
 void WindowInfosListenerInvoker::removeWindowInfosListener(
         const sp<IWindowInfosListener>& listener) {
     BackgroundExecutor::getInstance().sendCallbacks({[this, listener]() {
-        ATRACE_NAME("WindowInfosListenerInvoker::removeWindowInfosListener");
+        SFTRACE_NAME("WindowInfosListenerInvoker::removeWindowInfosListener");
         sp<IBinder> asBinder = IInterface::asBinder(listener);
         asBinder->unlinkToDeath(sp<DeathRecipient>::fromExisting(this));
         eraseListenerAndAckMessages(asBinder);
@@ -62,7 +62,7 @@
 
 void WindowInfosListenerInvoker::binderDied(const wp<IBinder>& who) {
     BackgroundExecutor::getInstance().sendCallbacks({[this, who]() {
-        ATRACE_NAME("WindowInfosListenerInvoker::binderDied");
+        SFTRACE_NAME("WindowInfosListenerInvoker::binderDied");
         eraseListenerAndAckMessages(who);
     }});
 }
@@ -146,7 +146,7 @@
 WindowInfosListenerInvoker::DebugInfo WindowInfosListenerInvoker::getDebugInfo() {
     DebugInfo result;
     BackgroundExecutor::getInstance().sendCallbacks({[&, this]() {
-        ATRACE_NAME("WindowInfosListenerInvoker::getDebugInfo");
+        SFTRACE_NAME("WindowInfosListenerInvoker::getDebugInfo");
         updateMaxSendDelay();
         result = mDebugInfo;
         result.pendingMessageCount = mUnackedState.size();
@@ -169,7 +169,7 @@
 binder::Status WindowInfosListenerInvoker::ackWindowInfosReceived(int64_t vsyncId,
                                                                   int64_t listenerId) {
     BackgroundExecutor::getInstance().sendCallbacks({[this, vsyncId, listenerId]() {
-        ATRACE_NAME("WindowInfosListenerInvoker::ackWindowInfosReceived");
+        SFTRACE_NAME("WindowInfosListenerInvoker::ackWindowInfosReceived");
         auto it = mUnackedState.find(vsyncId);
         if (it == mUnackedState.end()) {
             return;
diff --git a/services/surfaceflinger/common/Android.bp b/services/surfaceflinger/common/Android.bp
index bcf1886..f9c99bf 100644
--- a/services/surfaceflinger/common/Android.bp
+++ b/services/surfaceflinger/common/Android.bp
@@ -18,6 +18,7 @@
         "libSurfaceFlingerProp",
         "server_configurable_flags",
         "libaconfig_storage_read_api_cc",
+        "libtracing_perfetto",
     ],
     static_libs: [
         "librenderengine_includes",
@@ -27,6 +28,7 @@
     ],
     local_include_dirs: ["include"],
     export_include_dirs: ["include"],
+    export_shared_lib_headers: ["libtracing_perfetto"],
 }
 
 cc_library_static {
@@ -60,6 +62,7 @@
     shared_libs: [
         "server_configurable_flags",
         "libaconfig_storage_read_api_cc",
+        "libtracing_perfetto",
     ],
     static_libs: [
         "libsurfaceflinger_common",
@@ -75,6 +78,7 @@
     shared_libs: [
         "server_configurable_flags",
         "libaconfig_storage_read_api_cc",
+        "libtracing_perfetto",
     ],
     static_libs: [
         "libsurfaceflinger_common_test",
diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index 2e3273c..a56bb51 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -136,6 +136,7 @@
     DUMP_READ_ONLY_FLAG(vulkan_renderengine);
     DUMP_READ_ONLY_FLAG(renderable_buffer_usage);
     DUMP_READ_ONLY_FLAG(vrr_bugfix_24q4);
+    DUMP_READ_ONLY_FLAG(vrr_bugfix_dropped_frame);
     DUMP_READ_ONLY_FLAG(restore_blur_step);
     DUMP_READ_ONLY_FLAG(dont_skip_on_early_ro);
     DUMP_READ_ONLY_FLAG(protected_if_client);
@@ -242,6 +243,7 @@
 FLAG_MANAGER_READ_ONLY_FLAG(dont_skip_on_early_ro, "")
 FLAG_MANAGER_READ_ONLY_FLAG(protected_if_client, "")
 FLAG_MANAGER_READ_ONLY_FLAG(vrr_bugfix_24q4, "");
+FLAG_MANAGER_READ_ONLY_FLAG(vrr_bugfix_dropped_frame, "")
 FLAG_MANAGER_READ_ONLY_FLAG(ce_fence_promise, "");
 FLAG_MANAGER_READ_ONLY_FLAG(graphite_renderengine, "debug.renderengine.graphite")
 FLAG_MANAGER_READ_ONLY_FLAG(latch_unsignaled_with_auto_refresh_changed, "");
diff --git a/services/surfaceflinger/common/include/common/FlagManager.h b/services/surfaceflinger/common/include/common/FlagManager.h
index ab7a474..8799295 100644
--- a/services/surfaceflinger/common/include/common/FlagManager.h
+++ b/services/surfaceflinger/common/include/common/FlagManager.h
@@ -73,6 +73,7 @@
     bool screenshot_fence_preservation() const;
     bool vulkan_renderengine() const;
     bool vrr_bugfix_24q4() const;
+    bool vrr_bugfix_dropped_frame() const;
     bool renderable_buffer_usage() const;
     bool restore_blur_step() const;
     bool dont_skip_on_early_ro() const;
diff --git a/services/surfaceflinger/common/include/common/trace.h b/services/surfaceflinger/common/include/common/trace.h
new file mode 100644
index 0000000..dc5716b
--- /dev/null
+++ b/services/surfaceflinger/common/include/common/trace.h
@@ -0,0 +1,90 @@
+
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef ATRACE_TAG
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+#endif
+
+#include <cutils/trace.h>
+#include <tracing_perfetto.h>
+
+// prevent using atrace directly, calls should go through tracing_perfetto lib
+#undef ATRACE_ENABLED
+#undef ATRACE_BEGIN
+#undef ATRACE_END
+#undef ATRACE_ASYNC_BEGIN
+#undef ATRACE_ASYNC_END
+#undef ATRACE_ASYNC_FOR_TRACK_BEGIN
+#undef ATRACE_ASYNC_FOR_TRACK_END
+#undef ATRACE_INSTANT
+#undef ATRACE_INSTANT_FOR_TRACK
+#undef ATRACE_INT
+#undef ATRACE_INT64
+#undef ATRACE_CALL
+#undef ATRACE_NAME
+#undef ATRACE_FORMAT
+#undef ATRACE_FORMAT_INSTANT
+
+#define SFTRACE_ENABLED() ::tracing_perfetto::isTagEnabled(ATRACE_TAG)
+#define SFTRACE_BEGIN(name) ::tracing_perfetto::traceBegin(ATRACE_TAG, name)
+#define SFTRACE_END() ::tracing_perfetto::traceEnd(ATRACE_TAG)
+#define SFTRACE_ASYNC_BEGIN(name, cookie) \
+    ::tracing_perfetto::traceAsyncBegin(ATRACE_TAG, name, cookie)
+#define SFTRACE_ASYNC_END(name, cookie) ::tracing_perfetto::traceAsyncEnd(ATRACE_TAG, name, cookie)
+#define SFTRACE_ASYNC_FOR_TRACK_BEGIN(track_name, name, cookie) \
+    ::tracing_perfetto::traceAsyncBeginForTrack(ATRACE_TAG, name, track_name, cookie)
+#define SFTRACE_ASYNC_FOR_TRACK_END(track_name, cookie) \
+    ::tracing_perfetto::traceAsyncEndForTrack(ATRACE_TAG, track_name, cookie)
+#define SFTRACE_INSTANT(name) ::tracing_perfetto::traceInstant(ATRACE_TAG, name)
+#define SFTRACE_FORMAT_INSTANT(fmt, ...) \
+    ::tracing_perfetto::traceFormatInstant(ATRACE_TAG, fmt, ##__VA_ARGS__)
+#define SFTRACE_INSTANT_FOR_TRACK(trackName, name) \
+    ::tracing_perfetto::traceInstantForTrack(ATRACE_TAG, trackName, name)
+#define SFTRACE_INT(name, value) ::tracing_perfetto::traceCounter32(ATRACE_TAG, name, value)
+#define SFTRACE_INT64(name, value) ::tracing_perfetto::traceCounter(ATRACE_TAG, name, value)
+
+// SFTRACE_NAME traces from its location until the end of its enclosing scope.
+#define _PASTE(x, y) x##y
+#define PASTE(x, y) _PASTE(x, y)
+#define SFTRACE_NAME(name) ::android::ScopedTrace PASTE(___tracer, __LINE__)(name)
+// SFTRACE_CALL is an SFTRACE_NAME that uses the current function name.
+#define SFTRACE_CALL() SFTRACE_NAME(__FUNCTION__)
+
+#define SFTRACE_FORMAT(fmt, ...) \
+    ::android::ScopedTrace PASTE(___tracer, __LINE__)(fmt, ##__VA_ARGS__)
+
+#define ALOGE_AND_TRACE(fmt, ...)                   \
+    do {                                            \
+        ALOGE(fmt, ##__VA_ARGS__);                  \
+        SFTRACE_FORMAT_INSTANT(fmt, ##__VA_ARGS__); \
+    } while (false)
+
+namespace android {
+
+class ScopedTrace {
+public:
+    template <typename... Args>
+    inline ScopedTrace(const char* fmt, Args&&... args) {
+        ::tracing_perfetto::traceFormatBegin(ATRACE_TAG, fmt, std::forward<Args>(args)...);
+    }
+    inline ScopedTrace(const char* name) { SFTRACE_BEGIN(name); }
+    inline ~ScopedTrace() { SFTRACE_END(); }
+};
+
+} // namespace android
diff --git a/services/surfaceflinger/layerproto/Android.bp b/services/surfaceflinger/layerproto/Android.bp
index f77b137..0a69a72 100644
--- a/services/surfaceflinger/layerproto/Android.bp
+++ b/services/surfaceflinger/layerproto/Android.bp
@@ -8,14 +8,9 @@
     default_team: "trendy_team_android_core_graphics_stack",
 }
 
-cc_library {
-    name: "liblayers_proto",
+cc_defaults {
+    name: "libsurfaceflinger_proto_deps",
     export_include_dirs: ["include"],
-
-    srcs: [
-        "LayerProtoParser.cpp",
-    ],
-
     static_libs: [
         "libperfetto_client_experimental",
     ],
@@ -31,24 +26,15 @@
     ],
 
     shared_libs: [
-        "android.hardware.graphics.common@1.1",
-        "libgui",
-        "libui",
         "libprotobuf-cpp-lite",
-        "libbase",
     ],
 
-    cppflags: [
-        "-Werror",
-        "-Wno-unused-parameter",
-        "-Wno-format",
-        "-Wno-c++98-compat-pedantic",
-        "-Wno-float-conversion",
-        "-Wno-disabled-macro-expansion",
-        "-Wno-float-equal",
-        "-Wno-sign-conversion",
-        "-Wno-padded",
-        "-Wno-old-style-cast",
-        "-Wno-undef",
+    header_libs: [
+        "libsurfaceflinger_proto_headers",
     ],
 }
+
+cc_library_headers {
+    name: "libsurfaceflinger_proto_headers",
+    export_include_dirs: ["include"],
+}
diff --git a/services/surfaceflinger/layerproto/LayerProtoParser.cpp b/services/surfaceflinger/layerproto/LayerProtoParser.cpp
deleted file mode 100644
index c3d0a40..0000000
--- a/services/surfaceflinger/layerproto/LayerProtoParser.cpp
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <android-base/stringprintf.h>
-#include <layerproto/LayerProtoParser.h>
-#include <ui/DebugUtils.h>
-
-using android::base::StringAppendF;
-using android::base::StringPrintf;
-
-namespace android {
-namespace surfaceflinger {
-
-bool sortLayers(LayerProtoParser::Layer* lhs, const LayerProtoParser::Layer* rhs) {
-    uint32_t ls = lhs->layerStack;
-    uint32_t rs = rhs->layerStack;
-    if (ls != rs) return ls < rs;
-
-    int32_t lz = lhs->z;
-    int32_t rz = rhs->z;
-    if (lz != rz) {
-        return lz < rz;
-    }
-
-    return lhs->id < rhs->id;
-}
-
-LayerProtoParser::LayerTree LayerProtoParser::generateLayerTree(
-        const perfetto::protos::LayersProto& layersProto) {
-    LayerTree layerTree;
-    layerTree.allLayers = generateLayerList(layersProto);
-
-    // find and sort the top-level layers
-    for (Layer& layer : layerTree.allLayers) {
-        if (layer.parent == nullptr) {
-            layerTree.topLevelLayers.push_back(&layer);
-        }
-    }
-    std::sort(layerTree.topLevelLayers.begin(), layerTree.topLevelLayers.end(), sortLayers);
-
-    return layerTree;
-}
-
-std::vector<LayerProtoParser::Layer> LayerProtoParser::generateLayerList(
-        const perfetto::protos::LayersProto& layersProto) {
-    std::vector<Layer> layerList;
-    std::unordered_map<int32_t, Layer*> layerMap;
-
-    // build the layer list and the layer map
-    layerList.reserve(layersProto.layers_size());
-    layerMap.reserve(layersProto.layers_size());
-    for (int i = 0; i < layersProto.layers_size(); i++) {
-        layerList.emplace_back(generateLayer(layersProto.layers(i)));
-        // this works because layerList never changes capacity
-        layerMap[layerList.back().id] = &layerList.back();
-    }
-
-    // fix up children and relatives
-    for (int i = 0; i < layersProto.layers_size(); i++) {
-        updateChildrenAndRelative(layersProto.layers(i), layerMap);
-    }
-
-    return layerList;
-}
-
-LayerProtoParser::Layer LayerProtoParser::generateLayer(
-        const perfetto::protos::LayerProto& layerProto) {
-    Layer layer;
-    layer.id = layerProto.id();
-    layer.name = layerProto.name();
-    layer.type = layerProto.type();
-    layer.transparentRegion = generateRegion(layerProto.transparent_region());
-    layer.visibleRegion = generateRegion(layerProto.visible_region());
-    layer.damageRegion = generateRegion(layerProto.damage_region());
-    layer.layerStack = layerProto.layer_stack();
-    layer.z = layerProto.z();
-    layer.position = {layerProto.position().x(), layerProto.position().y()};
-    layer.requestedPosition = {layerProto.requested_position().x(),
-                                layerProto.requested_position().y()};
-    layer.size = {layerProto.size().w(), layerProto.size().h()};
-    layer.crop = generateRect(layerProto.crop());
-    layer.isOpaque = layerProto.is_opaque();
-    layer.invalidate = layerProto.invalidate();
-    layer.dataspace = layerProto.dataspace();
-    layer.pixelFormat = layerProto.pixel_format();
-    layer.color = {layerProto.color().r(), layerProto.color().g(), layerProto.color().b(),
-                    layerProto.color().a()};
-    layer.requestedColor = {layerProto.requested_color().r(), layerProto.requested_color().g(),
-                             layerProto.requested_color().b(), layerProto.requested_color().a()};
-    layer.flags = layerProto.flags();
-    layer.transform = generateTransform(layerProto.transform());
-    layer.requestedTransform = generateTransform(layerProto.requested_transform());
-    layer.activeBuffer = generateActiveBuffer(layerProto.active_buffer());
-    layer.bufferTransform = generateTransform(layerProto.buffer_transform());
-    layer.queuedFrames = layerProto.queued_frames();
-    layer.refreshPending = layerProto.refresh_pending();
-    layer.isProtected = layerProto.is_protected();
-    layer.isTrustedOverlay = layerProto.is_trusted_overlay();
-    layer.cornerRadius = layerProto.corner_radius();
-    layer.backgroundBlurRadius = layerProto.background_blur_radius();
-    for (const auto& entry : layerProto.metadata()) {
-        const std::string& dataStr = entry.second;
-        std::vector<uint8_t>& outData = layer.metadata.mMap[entry.first];
-        outData.resize(dataStr.size());
-        memcpy(outData.data(), dataStr.data(), dataStr.size());
-    }
-    layer.cornerRadiusCrop = generateFloatRect(layerProto.corner_radius_crop());
-    layer.shadowRadius = layerProto.shadow_radius();
-    layer.ownerUid = layerProto.owner_uid();
-    return layer;
-}
-
-LayerProtoParser::Region LayerProtoParser::generateRegion(
-        const perfetto::protos::RegionProto& regionProto) {
-    LayerProtoParser::Region region;
-    for (int i = 0; i < regionProto.rect_size(); i++) {
-        const perfetto::protos::RectProto& rectProto = regionProto.rect(i);
-        region.rects.push_back(generateRect(rectProto));
-    }
-
-    return region;
-}
-
-LayerProtoParser::Rect LayerProtoParser::generateRect(
-        const perfetto::protos::RectProto& rectProto) {
-    LayerProtoParser::Rect rect;
-    rect.left = rectProto.left();
-    rect.top = rectProto.top();
-    rect.right = rectProto.right();
-    rect.bottom = rectProto.bottom();
-
-    return rect;
-}
-
-LayerProtoParser::FloatRect LayerProtoParser::generateFloatRect(
-        const perfetto::protos::FloatRectProto& rectProto) {
-    LayerProtoParser::FloatRect rect;
-    rect.left = rectProto.left();
-    rect.top = rectProto.top();
-    rect.right = rectProto.right();
-    rect.bottom = rectProto.bottom();
-
-    return rect;
-}
-
-LayerProtoParser::Transform LayerProtoParser::generateTransform(
-        const perfetto::protos::TransformProto& transformProto) {
-    LayerProtoParser::Transform transform;
-    transform.dsdx = transformProto.dsdx();
-    transform.dtdx = transformProto.dtdx();
-    transform.dsdy = transformProto.dsdy();
-    transform.dtdy = transformProto.dtdy();
-
-    return transform;
-}
-
-LayerProtoParser::ActiveBuffer LayerProtoParser::generateActiveBuffer(
-        const perfetto::protos::ActiveBufferProto& activeBufferProto) {
-    LayerProtoParser::ActiveBuffer activeBuffer;
-    activeBuffer.width = activeBufferProto.width();
-    activeBuffer.height = activeBufferProto.height();
-    activeBuffer.stride = activeBufferProto.stride();
-    activeBuffer.format = activeBufferProto.format();
-
-    return activeBuffer;
-}
-
-void LayerProtoParser::updateChildrenAndRelative(const perfetto::protos::LayerProto& layerProto,
-                                                 std::unordered_map<int32_t, Layer*>& layerMap) {
-    auto currLayer = layerMap[layerProto.id()];
-
-    for (int i = 0; i < layerProto.children_size(); i++) {
-        if (layerMap.count(layerProto.children(i)) > 0) {
-            currLayer->children.push_back(layerMap[layerProto.children(i)]);
-        }
-    }
-
-    for (int i = 0; i < layerProto.relatives_size(); i++) {
-        if (layerMap.count(layerProto.relatives(i)) > 0) {
-            currLayer->relatives.push_back(layerMap[layerProto.relatives(i)]);
-        }
-    }
-
-    if (layerProto.has_parent()) {
-        if (layerMap.count(layerProto.parent()) > 0) {
-            currLayer->parent = layerMap[layerProto.parent()];
-        }
-    }
-
-    if (layerProto.has_z_order_relative_of()) {
-        if (layerMap.count(layerProto.z_order_relative_of()) > 0) {
-            currLayer->zOrderRelativeOf = layerMap[layerProto.z_order_relative_of()];
-        }
-    }
-}
-
-std::string LayerProtoParser::layerTreeToString(const LayerTree& layerTree) {
-    std::string result;
-    for (const LayerProtoParser::Layer* layer : layerTree.topLevelLayers) {
-        if (layer->zOrderRelativeOf != nullptr) {
-            continue;
-        }
-        result.append(layerToString(layer));
-    }
-
-    return result;
-}
-
-std::string LayerProtoParser::layerToString(const LayerProtoParser::Layer* layer) {
-    std::string result;
-
-    std::vector<Layer*> traverse(layer->relatives);
-    for (LayerProtoParser::Layer* child : layer->children) {
-        if (child->zOrderRelativeOf != nullptr) {
-            continue;
-        }
-
-        traverse.push_back(child);
-    }
-
-    std::sort(traverse.begin(), traverse.end(), sortLayers);
-
-    size_t i = 0;
-    for (; i < traverse.size(); i++) {
-        auto& relative = traverse[i];
-        if (relative->z >= 0) {
-            break;
-        }
-        result.append(layerToString(relative));
-    }
-    result.append(layer->to_string());
-    result.append("\n");
-    for (; i < traverse.size(); i++) {
-        auto& relative = traverse[i];
-        result.append(layerToString(relative));
-    }
-
-    return result;
-}
-
-std::string LayerProtoParser::ActiveBuffer::to_string() const {
-    return StringPrintf("[%4ux%4u:%4u,%s]", width, height, stride,
-                        decodePixelFormat(format).c_str());
-}
-
-std::string LayerProtoParser::Transform::to_string() const {
-    return StringPrintf("[%.2f, %.2f][%.2f, %.2f]", static_cast<double>(dsdx),
-                        static_cast<double>(dtdx), static_cast<double>(dsdy),
-                        static_cast<double>(dtdy));
-}
-
-std::string LayerProtoParser::Rect::to_string() const {
-    return StringPrintf("[%3d, %3d, %3d, %3d]", left, top, right, bottom);
-}
-
-std::string LayerProtoParser::FloatRect::to_string() const {
-    return StringPrintf("[%.2f, %.2f, %.2f, %.2f]", left, top, right, bottom);
-}
-
-std::string LayerProtoParser::Region::to_string(const char* what) const {
-    std::string result =
-            StringPrintf("  Region %s (this=%lx count=%d)\n", what, static_cast<unsigned long>(id),
-                         static_cast<int>(rects.size()));
-
-    for (auto& rect : rects) {
-        StringAppendF(&result, "    %s\n", rect.to_string().c_str());
-    }
-
-    return result;
-}
-
-std::string LayerProtoParser::Layer::to_string() const {
-    std::string result;
-    StringAppendF(&result, "+ %s (%s) uid=%d\n", type.c_str(), name.c_str(), ownerUid);
-    result.append(transparentRegion.to_string("TransparentRegion").c_str());
-    result.append(visibleRegion.to_string("VisibleRegion").c_str());
-    result.append(damageRegion.to_string("SurfaceDamageRegion").c_str());
-
-    StringAppendF(&result, "      layerStack=%4d, z=%9d, pos=(%g,%g), size=(%4d,%4d), ", layerStack,
-                  z, static_cast<double>(position.x), static_cast<double>(position.y), size.x,
-                  size.y);
-
-    StringAppendF(&result, "crop=%s, ", crop.to_string().c_str());
-    StringAppendF(&result, "cornerRadius=%f, ", cornerRadius);
-    StringAppendF(&result, "isProtected=%1d, ", isProtected);
-    StringAppendF(&result, "isTrustedOverlay=%1d, ", isTrustedOverlay);
-    StringAppendF(&result, "isOpaque=%1d, invalidate=%1d, ", isOpaque, invalidate);
-    StringAppendF(&result, "dataspace=%s, ", dataspace.c_str());
-    StringAppendF(&result, "defaultPixelFormat=%s, ", pixelFormat.c_str());
-    StringAppendF(&result, "backgroundBlurRadius=%1d, ", backgroundBlurRadius);
-    StringAppendF(&result, "color=(%.3f,%.3f,%.3f,%.3f), flags=0x%08x, ",
-                  static_cast<double>(color.r), static_cast<double>(color.g),
-                  static_cast<double>(color.b), static_cast<double>(color.a), flags);
-    StringAppendF(&result, "tr=%s", transform.to_string().c_str());
-    result.append("\n");
-    StringAppendF(&result, "      parent=%s\n", parent == nullptr ? "none" : parent->name.c_str());
-    StringAppendF(&result, "      zOrderRelativeOf=%s\n",
-                  zOrderRelativeOf == nullptr ? "none" : zOrderRelativeOf->name.c_str());
-    StringAppendF(&result, "      activeBuffer=%s,", activeBuffer.to_string().c_str());
-    StringAppendF(&result, " tr=%s", bufferTransform.to_string().c_str());
-    StringAppendF(&result, " queued-frames=%d", queuedFrames);
-    StringAppendF(&result, " metadata={");
-    bool first = true;
-    for (const auto& entry : metadata.mMap) {
-        if (!first) result.append(", ");
-        first = false;
-        result.append(metadata.itemToString(entry.first, ":"));
-    }
-    result.append("},");
-    StringAppendF(&result, " cornerRadiusCrop=%s, ", cornerRadiusCrop.to_string().c_str());
-    StringAppendF(&result, " shadowRadius=%.3f, ", shadowRadius);
-    return result;
-}
-
-} // namespace surfaceflinger
-} // namespace android
diff --git a/services/surfaceflinger/layerproto/include/layerproto/LayerProtoParser.h b/services/surfaceflinger/layerproto/include/layerproto/LayerProtoParser.h
deleted file mode 100644
index 79c3982..0000000
--- a/services/surfaceflinger/layerproto/include/layerproto/LayerProtoParser.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#pragma once
-
-#include <layerproto/LayerProtoHeader.h>
-
-#include <gui/LayerMetadata.h>
-#include <math/vec4.h>
-
-#include <memory>
-#include <unordered_map>
-#include <vector>
-
-using android::gui::LayerMetadata;
-
-namespace android {
-namespace surfaceflinger {
-
-class LayerProtoParser {
-public:
-    class ActiveBuffer {
-    public:
-        uint32_t width;
-        uint32_t height;
-        uint32_t stride;
-        int32_t format;
-
-        std::string to_string() const;
-    };
-
-    class Transform {
-    public:
-        float dsdx;
-        float dtdx;
-        float dsdy;
-        float dtdy;
-
-        std::string to_string() const;
-    };
-
-    class Rect {
-    public:
-        int32_t left;
-        int32_t top;
-        int32_t right;
-        int32_t bottom;
-
-        std::string to_string() const;
-    };
-
-    class FloatRect {
-    public:
-        float left;
-        float top;
-        float right;
-        float bottom;
-
-        std::string to_string() const;
-    };
-
-    class Region {
-    public:
-        uint64_t id;
-        std::vector<Rect> rects;
-
-        std::string to_string(const char* what) const;
-    };
-
-    class Layer {
-    public:
-        int32_t id;
-        std::string name;
-        std::vector<Layer*> children;
-        std::vector<Layer*> relatives;
-        std::string type;
-        LayerProtoParser::Region transparentRegion;
-        LayerProtoParser::Region visibleRegion;
-        LayerProtoParser::Region damageRegion;
-        uint32_t layerStack;
-        int32_t z;
-        float2 position;
-        float2 requestedPosition;
-        int2 size;
-        LayerProtoParser::Rect crop;
-        bool isOpaque;
-        bool invalidate;
-        std::string dataspace;
-        std::string pixelFormat;
-        half4 color;
-        half4 requestedColor;
-        uint32_t flags;
-        Transform transform;
-        Transform requestedTransform;
-        Layer* parent = 0;
-        Layer* zOrderRelativeOf = 0;
-        LayerProtoParser::ActiveBuffer activeBuffer;
-        Transform bufferTransform;
-        int32_t queuedFrames;
-        bool refreshPending;
-        bool isProtected;
-        bool isTrustedOverlay;
-        float cornerRadius;
-        int backgroundBlurRadius;
-        LayerMetadata metadata;
-        LayerProtoParser::FloatRect cornerRadiusCrop;
-        float shadowRadius;
-        uid_t ownerUid;
-
-        std::string to_string() const;
-    };
-
-    class LayerTree {
-    public:
-        // all layers in LayersProto and in the original order
-        std::vector<Layer> allLayers;
-
-        // pointers to top-level layers in allLayers
-        std::vector<Layer*> topLevelLayers;
-    };
-
-    static LayerTree generateLayerTree(const perfetto::protos::LayersProto& layersProto);
-    static std::string layerTreeToString(const LayerTree& layerTree);
-
-private:
-    static std::vector<Layer> generateLayerList(const perfetto::protos::LayersProto& layersProto);
-    static LayerProtoParser::Layer generateLayer(const perfetto::protos::LayerProto& layerProto);
-    static LayerProtoParser::Region generateRegion(
-            const perfetto::protos::RegionProto& regionProto);
-    static LayerProtoParser::Rect generateRect(const perfetto::protos::RectProto& rectProto);
-    static LayerProtoParser::FloatRect generateFloatRect(
-            const perfetto::protos::FloatRectProto& rectProto);
-    static LayerProtoParser::Transform generateTransform(
-            const perfetto::protos::TransformProto& transformProto);
-    static LayerProtoParser::ActiveBuffer generateActiveBuffer(
-            const perfetto::protos::ActiveBufferProto& activeBufferProto);
-    static void updateChildrenAndRelative(const perfetto::protos::LayerProto& layerProto,
-                                          std::unordered_map<int32_t, Layer*>& layerMap);
-
-    static std::string layerToString(const LayerProtoParser::Layer* layer);
-};
-
-} // namespace surfaceflinger
-} // namespace android
diff --git a/services/surfaceflinger/surfaceflinger_flags_new.aconfig b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
index f4d4ee9..919ec17 100644
--- a/services/surfaceflinger/surfaceflinger_flags_new.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
@@ -136,4 +136,15 @@
   }
 } # vrr_bugfix_24q4
 
+flag {
+  name: "vrr_bugfix_dropped_frame"
+  namespace: "core_graphics"
+  description: "bug fix for VRR dropped frame"
+  bug: "343603085"
+  is_fixed_read_only: true
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
+} # vrr_bugfix_dropped_frame
+
 # IMPORTANT - please keep alphabetize to reduce merge conflicts
diff --git a/services/surfaceflinger/tests/Android.bp b/services/surfaceflinger/tests/Android.bp
index 38fc977..4d5c0fd 100644
--- a/services/surfaceflinger/tests/Android.bp
+++ b/services/surfaceflinger/tests/Android.bp
@@ -28,6 +28,7 @@
         "android.hardware.graphics.common-ndk_shared",
         "surfaceflinger_defaults",
         "libsurfaceflinger_common_test_deps",
+        "libsurfaceflinger_proto_deps",
     ],
     test_suites: ["device-tests"],
     srcs: [
@@ -58,14 +59,12 @@
         "ScreenCapture_test.cpp",
         "SetFrameRate_test.cpp",
         "SetGeometry_test.cpp",
-        "Stress_test.cpp",
         "TextureFiltering_test.cpp",
         "VirtualDisplay_test.cpp",
         "WindowInfosListener_test.cpp",
     ],
     data: ["SurfaceFlinger_test.filter"],
     static_libs: [
-        "liblayers_proto",
         "android.hardware.graphics.composer@2.1",
         "libsurfaceflinger_common",
     ],
@@ -121,7 +120,6 @@
         "libEGL",
         "libGLESv2",
         "libgui",
-        "liblayers_proto",
         "liblog",
         "libprotobuf-cpp-full",
         "libui",
diff --git a/services/surfaceflinger/tests/Credentials_test.cpp b/services/surfaceflinger/tests/Credentials_test.cpp
index ebe11fb..d355e72 100644
--- a/services/surfaceflinger/tests/Credentials_test.cpp
+++ b/services/surfaceflinger/tests/Credentials_test.cpp
@@ -26,6 +26,7 @@
 #include <private/android_filesystem_config.h>
 #include <private/gui/ComposerServiceAIDL.h>
 #include <ui/DisplayMode.h>
+#include <ui/DisplayState.h>
 #include <ui/DynamicDisplayInfo.h>
 #include <utils/String8.h>
 #include <functional>
@@ -276,7 +277,7 @@
 TEST_F(CredentialsTest, CaptureLayersTest) {
     setupBackgroundSurface();
     sp<GraphicBuffer> outBuffer;
-    std::function<status_t()> condition = [=]() {
+    std::function<status_t()> condition = [=, this]() {
         LayerCaptureArgs captureArgs;
         captureArgs.layerHandle = mBGSurfaceControl->getHandle();
         captureArgs.sourceCrop = {0, 0, 1, 1};
@@ -396,6 +397,56 @@
     }
 }
 
+TEST_F(CredentialsTest, DisplayTransactionPermissionTest) {
+    const auto display = getFirstDisplayToken();
+
+    ui::DisplayState displayState;
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    const ui::Rotation initialOrientation = displayState.orientation;
+
+    // Set display orientation from an untrusted process. This should fail silently.
+    {
+        UIDFaker f{AID_BIN};
+        Transaction transaction;
+        Rect layerStackRect;
+        Rect displayRect;
+        transaction.setDisplayProjection(display, initialOrientation + ui::ROTATION_90,
+                                         layerStackRect, displayRect);
+        transaction.apply(/*synchronous=*/true);
+    }
+
+    // Verify that the display orientation did not change.
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    ASSERT_EQ(initialOrientation, displayState.orientation);
+
+    // Set display orientation from a trusted process.
+    {
+        UIDFaker f{AID_SYSTEM};
+        Transaction transaction;
+        Rect layerStackRect;
+        Rect displayRect;
+        transaction.setDisplayProjection(display, initialOrientation + ui::ROTATION_90,
+                                         layerStackRect, displayRect);
+        transaction.apply(/*synchronous=*/true);
+    }
+
+    // Verify that the display orientation did change.
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    ASSERT_EQ(initialOrientation + ui::ROTATION_90, displayState.orientation);
+
+    // Reset orientation
+    {
+        UIDFaker f{AID_SYSTEM};
+        Transaction transaction;
+        Rect layerStackRect;
+        Rect displayRect;
+        transaction.setDisplayProjection(display, initialOrientation, layerStackRect, displayRect);
+        transaction.apply(/*synchronous=*/true);
+    }
+    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(display, &displayState));
+    ASSERT_EQ(initialOrientation, displayState.orientation);
+}
+
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/tests/Stress_test.cpp b/services/surfaceflinger/tests/Stress_test.cpp
deleted file mode 100644
index b30df5e..0000000
--- a/services/surfaceflinger/tests/Stress_test.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-#include <gtest/gtest.h>
-
-#include <gui/SurfaceComposerClient.h>
-
-#include <utils/String8.h>
-
-#include <thread>
-#include <functional>
-#include <layerproto/LayerProtoParser.h>
-
-namespace android {
-
-TEST(SurfaceFlingerStress, create_and_destroy) {
-    auto do_stress = []() {
-        sp<SurfaceComposerClient> client = sp<SurfaceComposerClient>::make();
-        ASSERT_EQ(NO_ERROR, client->initCheck());
-        for (int j = 0; j < 1000; j++) {
-            auto surf = client->createSurface(String8("t"), 100, 100,
-                    PIXEL_FORMAT_RGBA_8888, 0);
-            ASSERT_TRUE(surf != nullptr);
-            surf.clear();
-        }
-    };
-
-    std::vector<std::thread> threads;
-    for (int i = 0; i < 10; i++) {
-        threads.push_back(std::thread(do_stress));
-    }
-    for (auto& thread : threads) {
-        thread.join();
-    }
-}
-
-perfetto::protos::LayersProto generateLayerProto() {
-    perfetto::protos::LayersProto layersProto;
-    std::array<perfetto::protos::LayerProto*, 10> layers = {};
-    for (size_t i = 0; i < layers.size(); ++i) {
-        layers[i] = layersProto.add_layers();
-        layers[i]->set_id(i);
-    }
-
-    layers[0]->add_children(1);
-    layers[1]->set_parent(0);
-    layers[0]->add_children(2);
-    layers[2]->set_parent(0);
-    layers[0]->add_children(3);
-    layers[3]->set_parent(0);
-    layers[2]->add_children(4);
-    layers[4]->set_parent(2);
-    layers[3]->add_children(5);
-    layers[5]->set_parent(3);
-    layers[5]->add_children(6);
-    layers[6]->set_parent(5);
-    layers[5]->add_children(7);
-    layers[7]->set_parent(5);
-    layers[6]->add_children(8);
-    layers[8]->set_parent(6);
-
-    layers[4]->set_z_order_relative_of(3);
-    layers[3]->add_relatives(4);
-    layers[8]->set_z_order_relative_of(9);
-    layers[9]->add_relatives(8);
-    layers[3]->set_z_order_relative_of(1);
-    layers[1]->add_relatives(3);
-
-/* ----------------------------
- *       - 0 -      - 9 -
- *      /  |  \
- *     1   2   3(1)
- *         |    |
- *         4(3) 5
- *             / \
- *            6   7
- *            |
- *            8(9)
- * -------------------------- */
-
-    return layersProto;
-}
-
-TEST(LayerProtoStress, mem_info) {
-    std::string cmd = "dumpsys meminfo ";
-    cmd += std::to_string(getpid());
-    system(cmd.c_str());
-    for (int i = 0; i < 100000; i++) {
-        perfetto::protos::LayersProto layersProto = generateLayerProto();
-        auto layerTree = surfaceflinger::LayerProtoParser::generateLayerTree(layersProto);
-        surfaceflinger::LayerProtoParser::layerTreeToString(layerTree);
-    }
-    system(cmd.c_str());
-}
-
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/benchmarks/Android.bp b/services/surfaceflinger/tests/benchmarks/Android.bp
new file mode 100644
index 0000000..1c47be34
--- /dev/null
+++ b/services/surfaceflinger/tests/benchmarks/Android.bp
@@ -0,0 +1,31 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
+cc_benchmark {
+    name: "surfaceflinger_microbenchmarks",
+    srcs: [
+        ":libsurfaceflinger_mock_sources",
+        ":libsurfaceflinger_sources",
+        "*.cpp",
+    ],
+    defaults: [
+        "libsurfaceflinger_mocks_defaults",
+        "skia_renderengine_deps",
+        "surfaceflinger_defaults",
+    ],
+    static_libs: [
+        "libgmock",
+        "libgtest",
+        "libc++fs",
+    ],
+    header_libs: [
+        "libsurfaceflinger_mocks_headers",
+        "surfaceflinger_tests_common_headers",
+    ],
+}
diff --git a/services/surfaceflinger/tests/benchmarks/LayerLifecycleManager_benchmarks.cpp b/services/surfaceflinger/tests/benchmarks/LayerLifecycleManager_benchmarks.cpp
new file mode 100644
index 0000000..7641a45
--- /dev/null
+++ b/services/surfaceflinger/tests/benchmarks/LayerLifecycleManager_benchmarks.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <memory>
+#include <optional>
+
+#include <benchmark/benchmark.h>
+
+#include <Client.h> // temporarily needed for LayerCreationArgs
+#include <FrontEnd/LayerCreationArgs.h>
+#include <FrontEnd/LayerLifecycleManager.h>
+#include <LayerLifecycleManagerHelper.h>
+
+namespace android::surfaceflinger {
+
+namespace {
+
+using namespace android::surfaceflinger::frontend;
+
+static void addRemoveLayers(benchmark::State& state) {
+    LayerLifecycleManager lifecycleManager;
+    for (auto _ : state) {
+        std::vector<std::unique_ptr<RequestedLayerState>> layers;
+        layers.emplace_back(LayerLifecycleManagerHelper::rootLayer(1));
+        layers.emplace_back(LayerLifecycleManagerHelper::rootLayer(2));
+        layers.emplace_back(LayerLifecycleManagerHelper::rootLayer(3));
+        lifecycleManager.addLayers(std::move(layers));
+        lifecycleManager.onHandlesDestroyed({{1, "1"}, {2, "2"}, {3, "3"}});
+        lifecycleManager.commitChanges();
+    }
+}
+BENCHMARK(addRemoveLayers);
+
+static void updateClientStates(benchmark::State& state) {
+    LayerLifecycleManager lifecycleManager;
+    std::vector<std::unique_ptr<RequestedLayerState>> layers;
+    layers.emplace_back(LayerLifecycleManagerHelper::rootLayer(1));
+    lifecycleManager.addLayers(std::move(layers));
+    lifecycleManager.commitChanges();
+    std::vector<TransactionState> transactions;
+    transactions.emplace_back();
+    transactions.back().states.push_back({});
+    auto& transactionState = transactions.back().states.front();
+    transactionState.state.what = layer_state_t::eColorChanged;
+    transactionState.state.color.rgb = {0.f, 0.f, 0.f};
+    transactionState.layerId = 1;
+    lifecycleManager.applyTransactions(transactions);
+    lifecycleManager.commitChanges();
+    int i = 0;
+    for (auto s : state) {
+        if (i++ % 100 == 0) i = 0;
+        transactionState.state.color.b = static_cast<float>(i / 100.f);
+        lifecycleManager.applyTransactions(transactions);
+        lifecycleManager.commitChanges();
+    }
+}
+BENCHMARK(updateClientStates);
+
+static void updateClientStatesNoChanges(benchmark::State& state) {
+    LayerLifecycleManager lifecycleManager;
+    std::vector<std::unique_ptr<RequestedLayerState>> layers;
+    layers.emplace_back(LayerLifecycleManagerHelper::rootLayer(1));
+    lifecycleManager.addLayers(std::move(layers));
+    std::vector<TransactionState> transactions;
+    transactions.emplace_back();
+    transactions.back().states.push_back({});
+    auto& transactionState = transactions.back().states.front();
+    transactionState.state.what = layer_state_t::eColorChanged;
+    transactionState.state.color.rgb = {0.f, 0.f, 0.f};
+    transactionState.layerId = 1;
+    lifecycleManager.applyTransactions(transactions);
+    lifecycleManager.commitChanges();
+    for (auto _ : state) {
+        lifecycleManager.applyTransactions(transactions);
+        lifecycleManager.commitChanges();
+    }
+}
+BENCHMARK(updateClientStatesNoChanges);
+
+} // namespace
+} // namespace android::surfaceflinger
diff --git a/services/surfaceflinger/tests/benchmarks/LocklessQueue_benchmarks.cpp b/services/surfaceflinger/tests/benchmarks/LocklessQueue_benchmarks.cpp
new file mode 100644
index 0000000..60bd58a
--- /dev/null
+++ b/services/surfaceflinger/tests/benchmarks/LocklessQueue_benchmarks.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <memory>
+#include <optional>
+
+#include <benchmark/benchmark.h>
+
+#include <LocklessQueue.h>
+
+namespace android::surfaceflinger {
+
+namespace {
+static void pushPop(benchmark::State& state) {
+    LocklessQueue<std::vector<uint32_t>> queue;
+    for (auto _ : state) {
+        queue.push({10, 5});
+        std::vector<uint32_t> poppedValue = *queue.pop();
+        benchmark::DoNotOptimize(poppedValue);
+    }
+}
+BENCHMARK(pushPop);
+
+} // namespace
+} // namespace android::surfaceflinger
diff --git a/libs/tracing_perfetto/include/trace_result.h b/services/surfaceflinger/tests/benchmarks/main.cpp
similarity index 70%
copy from libs/tracing_perfetto/include/trace_result.h
copy to services/surfaceflinger/tests/benchmarks/main.cpp
index f7581fc..685c7c6 100644
--- a/libs/tracing_perfetto/include/trace_result.h
+++ b/services/surfaceflinger/tests/benchmarks/main.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 The Android Open Source Project
+ * Copyright (C) 2024 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,17 +14,5 @@
  * limitations under the License.
  */
 
-#ifndef TRACE_RESULT_H
-#define TRACE_RESULT_H
-
-namespace tracing_perfetto {
-
-enum class Result {
-  SUCCESS,
-  NOT_SUPPORTED,
-  INVALID_INPUT,
-};
-
-}
-
-#endif  // TRACE_RESULT_H
+#include <benchmark/benchmark.h>
+BENCHMARK_MAIN();
diff --git a/services/surfaceflinger/tests/common/Android.bp b/services/surfaceflinger/tests/common/Android.bp
new file mode 100644
index 0000000..2dfa8af
--- /dev/null
+++ b/services/surfaceflinger/tests/common/Android.bp
@@ -0,0 +1,13 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
+cc_library_headers {
+    name: "surfaceflinger_tests_common_headers",
+    export_include_dirs: ["."],
+}
diff --git a/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h b/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
new file mode 100644
index 0000000..3104dd4
--- /dev/null
+++ b/services/surfaceflinger/tests/common/LayerLifecycleManagerHelper.h
@@ -0,0 +1,522 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <gui/fake/BufferData.h>
+#include <renderengine/mock/FakeExternalTexture.h>
+#include <ui/ShadowSettings.h>
+
+#include <Client.h> // temporarily needed for LayerCreationArgs
+#include <FrontEnd/LayerCreationArgs.h>
+#include <FrontEnd/LayerHierarchy.h>
+#include <FrontEnd/LayerLifecycleManager.h>
+#include <FrontEnd/LayerSnapshotBuilder.h>
+#include <Layer.h> // needed for framerate
+
+namespace android::surfaceflinger::frontend {
+
+class LayerLifecycleManagerHelper {
+public:
+    LayerLifecycleManagerHelper(LayerLifecycleManager& layerLifecycleManager)
+          : mLifecycleManager(layerLifecycleManager) {}
+    ~LayerLifecycleManagerHelper() = default;
+
+    static LayerCreationArgs createArgs(uint32_t id, bool canBeRoot, uint32_t parentId,
+                                        uint32_t layerIdToMirror) {
+        LayerCreationArgs args(std::make_optional(id));
+        args.name = "testlayer";
+        args.addToRoot = canBeRoot;
+        args.parentId = parentId;
+        args.layerIdToMirror = layerIdToMirror;
+        return args;
+    }
+
+    static LayerCreationArgs createDisplayMirrorArgs(uint32_t id,
+                                                     ui::LayerStack layerStackToMirror) {
+        LayerCreationArgs args(std::make_optional(id));
+        args.name = "testlayer";
+        args.addToRoot = true;
+        args.layerStackToMirror = layerStackToMirror;
+        return args;
+    }
+
+    static std::unique_ptr<RequestedLayerState> rootLayer(uint32_t id) {
+        return std::make_unique<RequestedLayerState>(createArgs(/*id=*/id, /*canBeRoot=*/true,
+                                                                /*parent=*/UNASSIGNED_LAYER_ID,
+                                                                /*mirror=*/UNASSIGNED_LAYER_ID));
+    }
+
+    static std::unique_ptr<RequestedLayerState> childLayer(uint32_t id, uint32_t parentId) {
+        return std::make_unique<RequestedLayerState>(createArgs(/*id=*/id, /*canBeRoot=*/false,
+                                                                parentId,
+                                                                /*mirror=*/UNASSIGNED_LAYER_ID));
+    }
+
+    static std::vector<TransactionState> setZTransaction(uint32_t id, int32_t z) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eLayerChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.z = z;
+        return transactions;
+    }
+
+    void createRootLayer(uint32_t id) {
+        std::vector<std::unique_ptr<RequestedLayerState>> layers;
+        layers.emplace_back(std::make_unique<RequestedLayerState>(
+                createArgs(/*id=*/id, /*canBeRoot=*/true, /*parent=*/UNASSIGNED_LAYER_ID,
+                           /*mirror=*/UNASSIGNED_LAYER_ID)));
+        mLifecycleManager.addLayers(std::move(layers));
+    }
+
+    void createRootLayerWithUid(uint32_t id, gui::Uid uid) {
+        std::vector<std::unique_ptr<RequestedLayerState>> layers;
+        auto args = createArgs(/*id=*/id, /*canBeRoot=*/true, /*parent=*/UNASSIGNED_LAYER_ID,
+                               /*mirror=*/UNASSIGNED_LAYER_ID);
+        args.ownerUid = uid.val();
+        layers.emplace_back(std::make_unique<RequestedLayerState>(args));
+        mLifecycleManager.addLayers(std::move(layers));
+    }
+
+    void createDisplayMirrorLayer(uint32_t id, ui::LayerStack layerStack) {
+        std::vector<std::unique_ptr<RequestedLayerState>> layers;
+        layers.emplace_back(std::make_unique<RequestedLayerState>(
+                createDisplayMirrorArgs(/*id=*/id, layerStack)));
+        mLifecycleManager.addLayers(std::move(layers));
+    }
+
+    void createLayer(uint32_t id, uint32_t parentId) {
+        std::vector<std::unique_ptr<RequestedLayerState>> layers;
+        layers.emplace_back(std::make_unique<RequestedLayerState>(
+                createArgs(/*id=*/id, /*canBeRoot=*/false, /*parent=*/parentId,
+                           /*mirror=*/UNASSIGNED_LAYER_ID)));
+        mLifecycleManager.addLayers(std::move(layers));
+    }
+
+    std::vector<TransactionState> reparentLayerTransaction(uint32_t id, uint32_t newParentId) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().parentId = newParentId;
+        transactions.back().states.front().state.what = layer_state_t::eReparent;
+        transactions.back().states.front().relativeParentId = UNASSIGNED_LAYER_ID;
+        transactions.back().states.front().layerId = id;
+        return transactions;
+    }
+
+    void reparentLayer(uint32_t id, uint32_t newParentId) {
+        mLifecycleManager.applyTransactions(reparentLayerTransaction(id, newParentId));
+    }
+
+    std::vector<TransactionState> relativeLayerTransaction(uint32_t id, uint32_t relativeParentId) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().relativeParentId = relativeParentId;
+        transactions.back().states.front().state.what = layer_state_t::eRelativeLayerChanged;
+        transactions.back().states.front().layerId = id;
+        return transactions;
+    }
+
+    void reparentRelativeLayer(uint32_t id, uint32_t relativeParentId) {
+        mLifecycleManager.applyTransactions(relativeLayerTransaction(id, relativeParentId));
+    }
+
+    void removeRelativeZ(uint32_t id) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::eLayerChanged;
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setPosition(uint32_t id, float x, float y) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::ePositionChanged;
+        transactions.back().states.front().state.x = x;
+        transactions.back().states.front().state.y = y;
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void mirrorLayer(uint32_t id, uint32_t parentId, uint32_t layerIdToMirror) {
+        std::vector<std::unique_ptr<RequestedLayerState>> layers;
+        layers.emplace_back(std::make_unique<RequestedLayerState>(
+                createArgs(/*id=*/id, /*canBeRoot=*/false, /*parent=*/parentId,
+                           /*mirror=*/layerIdToMirror)));
+        mLifecycleManager.addLayers(std::move(layers));
+    }
+
+    void updateBackgroundColor(uint32_t id, half alpha) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::eBackgroundColorChanged;
+        transactions.back().states.front().state.bgColor.a = alpha;
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void destroyLayerHandle(uint32_t id) { mLifecycleManager.onHandlesDestroyed({{id, "test"}}); }
+
+    void setZ(uint32_t id, int32_t z) {
+        mLifecycleManager.applyTransactions(setZTransaction(id, z));
+    }
+
+    void setCrop(uint32_t id, const Rect& crop) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eCropChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.crop = crop;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setFlags(uint32_t id, uint32_t mask, uint32_t flags) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eFlagsChanged;
+        transactions.back().states.front().state.flags = flags;
+        transactions.back().states.front().state.mask = mask;
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setAlpha(uint32_t id, float alpha) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eAlphaChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.color.a = static_cast<half>(alpha);
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void hideLayer(uint32_t id) {
+        setFlags(id, layer_state_t::eLayerHidden, layer_state_t::eLayerHidden);
+    }
+
+    void showLayer(uint32_t id) { setFlags(id, layer_state_t::eLayerHidden, 0); }
+
+    void setColor(uint32_t id, half3 rgb = half3(1._hf, 1._hf, 1._hf)) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::eColorChanged;
+        transactions.back().states.front().state.color.rgb = rgb;
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setLayerStack(uint32_t id, int32_t layerStack) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eLayerStackChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.layerStack = ui::LayerStack::fromValue(layerStack);
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setTouchableRegion(uint32_t id, Region region) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eInputInfoChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.windowInfoHandle =
+                sp<gui::WindowInfoHandle>::make();
+        auto inputInfo = transactions.back().states.front().state.windowInfoHandle->editInfo();
+        inputInfo->touchableRegion = region;
+        inputInfo->token = sp<BBinder>::make();
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setInputInfo(uint32_t id, std::function<void(gui::WindowInfo&)> configureInput) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eInputInfoChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.windowInfoHandle =
+                sp<gui::WindowInfoHandle>::make();
+        auto inputInfo = transactions.back().states.front().state.windowInfoHandle->editInfo();
+        if (!inputInfo->token) {
+            inputInfo->token = sp<BBinder>::make();
+        }
+        configureInput(*inputInfo);
+
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setTouchableRegionCrop(uint32_t id, Region region, uint32_t touchCropId,
+                                bool replaceTouchableRegionWithCrop) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eInputInfoChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.windowInfoHandle =
+                sp<gui::WindowInfoHandle>::make();
+        auto inputInfo = transactions.back().states.front().state.windowInfoHandle->editInfo();
+        inputInfo->touchableRegion = region;
+        inputInfo->replaceTouchableRegionWithCrop = replaceTouchableRegionWithCrop;
+        transactions.back().states.front().touchCropId = touchCropId;
+
+        inputInfo->token = sp<BBinder>::make();
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setBackgroundBlurRadius(uint32_t id, uint32_t backgroundBlurRadius) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eBackgroundBlurRadiusChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.backgroundBlurRadius = backgroundBlurRadius;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setFrameRateSelectionPriority(uint32_t id, int32_t priority) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eFrameRateSelectionPriority;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.frameRateSelectionPriority = priority;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setFrameRate(uint32_t id, float frameRate, int8_t compatibility,
+                      int8_t changeFrameRateStrategy) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eFrameRateChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.frameRate = frameRate;
+        transactions.back().states.front().state.frameRateCompatibility = compatibility;
+        transactions.back().states.front().state.changeFrameRateStrategy = changeFrameRateStrategy;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setFrameRate(uint32_t id, Layer::FrameRate framerate) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eFrameRateChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.frameRate = framerate.vote.rate.getValue();
+        transactions.back().states.front().state.frameRateCompatibility = 0;
+        transactions.back().states.front().state.changeFrameRateStrategy = 0;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setFrameRateCategory(uint32_t id, int8_t frameRateCategory) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eFrameRateCategoryChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.frameRateCategory = frameRateCategory;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setFrameRateSelectionStrategy(uint32_t id, int8_t strategy) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what =
+                layer_state_t::eFrameRateSelectionStrategyChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.frameRateSelectionStrategy = strategy;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setDefaultFrameRateCompatibility(uint32_t id, int8_t defaultFrameRateCompatibility) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what =
+                layer_state_t::eDefaultFrameRateCompatibilityChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.defaultFrameRateCompatibility =
+                defaultFrameRateCompatibility;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setRoundedCorners(uint32_t id, float radius) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eCornerRadiusChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.cornerRadius = radius;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setBuffer(uint32_t id, std::shared_ptr<renderengine::ExternalTexture> texture) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eBufferChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().externalTexture = texture;
+        transactions.back().states.front().state.bufferData =
+                std::make_shared<fake::BufferData>(texture->getId(), texture->getWidth(),
+                                                   texture->getHeight(), texture->getPixelFormat(),
+                                                   texture->getUsage());
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setBuffer(uint32_t id) {
+        static uint64_t sBufferId = 1;
+        setBuffer(id,
+                  std::make_shared<renderengine::mock::
+                                           FakeExternalTexture>(1U /*width*/, 1U /*height*/,
+                                                                sBufferId++,
+                                                                HAL_PIXEL_FORMAT_RGBA_8888,
+                                                                GRALLOC_USAGE_PROTECTED /*usage*/));
+    }
+
+    void setFrontBuffer(uint32_t id) {
+        static uint64_t sBufferId = 1;
+        setBuffer(id,
+                  std::make_shared<renderengine::mock::FakeExternalTexture>(
+                          1U /*width*/, 1U /*height*/, sBufferId++, HAL_PIXEL_FORMAT_RGBA_8888,
+                          GRALLOC_USAGE_PROTECTED | AHARDWAREBUFFER_USAGE_FRONT_BUFFER /*usage*/));
+    }
+
+    void setBufferCrop(uint32_t id, const Rect& bufferCrop) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eBufferCropChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.bufferCrop = bufferCrop;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setDamageRegion(uint32_t id, const Region& damageRegion) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eSurfaceDamageRegionChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.surfaceDamageRegion = damageRegion;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setDataspace(uint32_t id, ui::Dataspace dataspace) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eDataspaceChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.dataspace = dataspace;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setMatrix(uint32_t id, float dsdx, float dtdx, float dtdy, float dsdy) {
+        layer_state_t::matrix22_t matrix{dsdx, dtdx, dtdy, dsdy};
+
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eMatrixChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.matrix = matrix;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setShadowRadius(uint32_t id, float shadowRadius) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eShadowRadiusChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.shadowRadius = shadowRadius;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setTrustedOverlay(uint32_t id, gui::TrustedOverlay trustedOverlay) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eTrustedOverlayChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.trustedOverlay = trustedOverlay;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setDropInputMode(uint32_t id, gui::DropInputMode dropInputMode) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+
+        transactions.back().states.front().state.what = layer_state_t::eDropInputModeChanged;
+        transactions.back().states.front().layerId = id;
+        transactions.back().states.front().state.dropInputMode = dropInputMode;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+    void setGameMode(uint32_t id, gui::GameMode gameMode) {
+        std::vector<TransactionState> transactions;
+        transactions.emplace_back();
+        transactions.back().states.push_back({});
+        transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
+        transactions.back().states.front().state.metadata = LayerMetadata();
+        transactions.back().states.front().state.metadata.setInt32(METADATA_GAME_MODE,
+                                                                   static_cast<int32_t>(gameMode));
+        transactions.back().states.front().layerId = id;
+        mLifecycleManager.applyTransactions(transactions);
+    }
+
+private:
+    LayerLifecycleManager& mLifecycleManager;
+};
+
+} // namespace android::surfaceflinger::frontend
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 98d5754..f1bd87c 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -58,6 +58,7 @@
     ],
     test_suites: ["device-tests"],
     static_libs: ["libc++fs"],
+    header_libs: ["surfaceflinger_tests_common_headers"],
     srcs: [
         ":libsurfaceflinger_mock_sources",
         ":libsurfaceflinger_sources",
@@ -79,20 +80,16 @@
         "FpsTest.cpp",
         "FramebufferSurfaceTest.cpp",
         "FrameRateOverrideMappingsTest.cpp",
-        "FrameRateSelectionPriorityTest.cpp",
-        "FrameRateSelectionStrategyTest.cpp",
         "FrameTimelineTest.cpp",
-        "GameModeTest.cpp",
         "HWComposerTest.cpp",
+        "JankTrackerTest.cpp",
         "OneShotTimerTest.cpp",
-        "LayerHistoryTest.cpp",
         "LayerHistoryIntegrationTest.cpp",
         "LayerInfoTest.cpp",
         "LayerMetadataTest.cpp",
         "LayerHierarchyTest.cpp",
         "LayerLifecycleManagerTest.cpp",
         "LayerSnapshotTest.cpp",
-        "LayerTest.cpp",
         "LayerTestUtils.cpp",
         "MessageQueueTest.cpp",
         "PowerAdvisorTest.cpp",
@@ -115,9 +112,7 @@
         "SurfaceFlinger_SetDisplayStateTest.cpp",
         "SurfaceFlinger_SetPowerModeInternalTest.cpp",
         "SurfaceFlinger_SetupNewDisplayDeviceInternalTest.cpp",
-        "SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp",
         "SchedulerTest.cpp",
-        "SetFrameRateTest.cpp",
         "RefreshRateSelectorTest.cpp",
         "RefreshRateStatsTest.cpp",
         "RegionSamplingTest.cpp",
@@ -151,6 +146,7 @@
         "android.hardware.power-ndk_static",
         "librenderengine_deps",
         "libsurfaceflinger_common_test_deps",
+        "libsurfaceflinger_proto_deps",
     ],
     static_libs: [
         "android.hardware.common-V2-ndk",
@@ -169,7 +165,6 @@
         "libframetimeline",
         "libgmock",
         "libgui_mocks",
-        "liblayers_proto",
         "libperfetto_client_experimental",
         "librenderengine",
         "librenderengine_mocks",
@@ -208,6 +203,7 @@
         "libsync",
         "libui",
         "libutils",
+        "libtracing_perfetto",
     ],
     header_libs: [
         "android.hardware.graphics.composer3-command-buffer",
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index cdd77fe..23d3c16 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -15,7 +15,6 @@
  */
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
-#include "renderengine/ExternalTexture.h"
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wconversion"
 #pragma clang diagnostic ignored "-Wextra"
@@ -31,6 +30,7 @@
 #include <gui/IProducerListener.h>
 #include <gui/LayerMetadata.h>
 #include <log/log.h>
+#include <renderengine/ExternalTexture.h>
 #include <renderengine/mock/FakeExternalTexture.h>
 #include <renderengine/mock/RenderEngine.h>
 #include <system/window.h>
@@ -149,7 +149,6 @@
     sp<compositionengine::mock::DisplaySurface> mDisplaySurface =
             sp<compositionengine::mock::DisplaySurface>::make();
     sp<mock::NativeWindow> mNativeWindow = sp<mock::NativeWindow>::make();
-    std::vector<sp<Layer>> mAuxiliaryLayers;
 
     sp<GraphicBuffer> mBuffer =
             sp<GraphicBuffer>::make(1u, 1u, PIXEL_FORMAT_RGBA_8888,
@@ -194,6 +193,7 @@
 template <typename LayerCase>
 void CompositionTest::captureScreenComposition() {
     LayerCase::setupForScreenCapture(this);
+    mFlinger.commit();
 
     const Rect sourceCrop(0, 0, DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT);
     constexpr bool regionSampling = false;
@@ -204,13 +204,8 @@
                                       RenderArea::Options::CAPTURE_SECURE_LAYERS |
                                               RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION);
 
-    auto traverseLayers = [this](const LayerVector::Visitor& visitor) {
-        return mFlinger.traverseLayersInLayerStack(mDisplay->getLayerStack(),
-                                                   CaptureArgs::UNSET_UID, {}, visitor);
-    };
-
-    // TODO: Use SurfaceFlinger::getLayerSnapshotsForScreenshots instead of this legacy function
-    auto getLayerSnapshotsFn = RenderArea::fromTraverseLayersLambda(traverseLayers);
+    auto getLayerSnapshotsFn = mFlinger.getLayerSnapshotsForScreenshotsFn(mDisplay->getLayerStack(),
+                                                                          CaptureArgs::UNSET_UID);
 
     const uint32_t usage = GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN |
             GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE;
@@ -462,7 +457,7 @@
     static constexpr IComposerClient::BlendMode BLENDMODE =
             IComposerClient::BlendMode::PREMULTIPLIED;
 
-    static void setupLatchedBuffer(CompositionTest* test, sp<Layer> layer) {
+    static void setupLatchedBuffer(CompositionTest* test, frontend::RequestedLayerState& layer) {
         Mock::VerifyAndClear(test->mRenderEngine);
 
         const auto buffer = std::make_shared<
@@ -472,21 +467,15 @@
                                                          LayerProperties::FORMAT,
                                                          LayerProperties::USAGE |
                                                                  GraphicBuffer::USAGE_HW_TEXTURE);
-
-        auto& layerDrawingState = test->mFlinger.mutableLayerDrawingState(layer);
-        layerDrawingState.crop = Rect(0, 0, LayerProperties::HEIGHT, LayerProperties::WIDTH);
-        layerDrawingState.buffer = buffer;
-        layerDrawingState.acquireFence = Fence::NO_FENCE;
-        layerDrawingState.dataspace = ui::Dataspace::UNKNOWN;
-        layer->setSurfaceDamageRegion(
-                Region(Rect(LayerProperties::HEIGHT, LayerProperties::WIDTH)));
-
-        bool ignoredRecomputeVisibleRegions;
-        layer->latchBuffer(ignoredRecomputeVisibleRegions, 0);
+        layer.crop = Rect(0, 0, LayerProperties::HEIGHT, LayerProperties::WIDTH);
+        layer.externalTexture = buffer;
+        layer.bufferData->acquireFence = Fence::NO_FENCE;
+        layer.dataspace = ui::Dataspace::UNKNOWN;
+        layer.surfaceDamageRegion = Region(Rect(LayerProperties::HEIGHT, LayerProperties::WIDTH));
         Mock::VerifyAndClear(test->mRenderEngine);
     }
 
-    static void setupLayerState(CompositionTest* test, sp<Layer> layer) {
+    static void setupLayerState(CompositionTest* test, frontend::RequestedLayerState& layer) {
         setupLatchedBuffer(test, layer);
     }
 
@@ -670,14 +659,12 @@
     using Base = BaseLayerProperties<SidebandLayerProperties>;
     static constexpr IComposerClient::BlendMode BLENDMODE = IComposerClient::BlendMode::NONE;
 
-    static void setupLayerState(CompositionTest* test, sp<Layer> layer) {
+    static void setupLayerState(CompositionTest* test, frontend::RequestedLayerState& layer) {
         sp<NativeHandle> stream =
                 NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                      false);
-        test->mFlinger.setLayerSidebandStream(layer, stream);
-        auto& layerDrawingState = test->mFlinger.mutableLayerDrawingState(layer);
-        layerDrawingState.crop =
-                Rect(0, 0, SidebandLayerProperties::HEIGHT, SidebandLayerProperties::WIDTH);
+        layer.sidebandStream = stream;
+        layer.crop = Rect(0, 0, SidebandLayerProperties::HEIGHT, SidebandLayerProperties::WIDTH);
     }
 
     static void setupHwcSetSourceCropBufferCallExpectations(CompositionTest* test) {
@@ -755,17 +742,17 @@
 struct CursorLayerProperties : public BaseLayerProperties<CursorLayerProperties> {
     using Base = BaseLayerProperties<CursorLayerProperties>;
 
-    static void setupLayerState(CompositionTest* test, sp<Layer> layer) {
+    static void setupLayerState(CompositionTest* test, frontend::RequestedLayerState& layer) {
         Base::setupLayerState(test, layer);
-        test->mFlinger.setLayerPotentialCursor(layer, true);
+        layer.potentialCursor = true;
     }
 };
 
 struct NoLayerVariant {
-    using FlingerLayerType = sp<Layer>;
-
-    static FlingerLayerType createLayer(CompositionTest*) { return FlingerLayerType(); }
-    static void injectLayer(CompositionTest*, FlingerLayerType) {}
+    static frontend::RequestedLayerState createLayer(CompositionTest*) {
+        return {LayerCreationArgs()};
+    }
+    static void injectLayer(CompositionTest*, frontend::RequestedLayerState&) {}
     static void cleanupInjectedLayers(CompositionTest*) {}
 
     static void setupCallExpectationsForDirtyGeometry(CompositionTest*) {}
@@ -775,10 +762,10 @@
 template <typename LayerProperties>
 struct BaseLayerVariant {
     template <typename L, typename F>
-    static sp<L> createLayerWithFactory(CompositionTest* test, F factory) {
+    static frontend::RequestedLayerState createLayerWithFactory(CompositionTest* test, F factory) {
         EXPECT_CALL(*test->mFlinger.scheduler(), postMessage(_)).Times(0);
 
-        sp<L> layer = factory();
+        auto layer = factory();
 
         // Layer should be registered with scheduler.
         EXPECT_EQ(1u, test->mFlinger.scheduler()->layerHistorySize());
@@ -792,27 +779,26 @@
         return layer;
     }
 
-    template <typename L>
-    static void initLayerDrawingStateAndComputeBounds(CompositionTest* test, sp<L> layer) {
-        auto& layerDrawingState = test->mFlinger.mutableLayerDrawingState(layer);
-        layerDrawingState.layerStack = LAYER_STACK;
-        layerDrawingState.color = half4(LayerProperties::COLOR[0], LayerProperties::COLOR[1],
-                                        LayerProperties::COLOR[2], LayerProperties::COLOR[3]);
-        layer->computeBounds(FloatRect(0, 0, 100, 100), ui::Transform(), 0.f /* shadowRadius */);
+    static void initLayerDrawingStateAndComputeBounds(CompositionTest* test,
+                                                      frontend::RequestedLayerState& layer) {
+        layer.layerStack = LAYER_STACK;
+        layer.color = half4(LayerProperties::COLOR[0], LayerProperties::COLOR[1],
+                            LayerProperties::COLOR[2], LayerProperties::COLOR[3]);
     }
 
-    static void injectLayer(CompositionTest* test, sp<Layer> layer) {
+    static void injectLayer(CompositionTest* test, frontend::RequestedLayerState& layer) {
         EXPECT_CALL(*test->mComposer, createLayer(HWC_DISPLAY, _))
                 .WillOnce(DoAll(SetArgPointee<1>(HWC_LAYER), Return(Error::NONE)));
-
+        auto legacyLayer = test->mFlinger.getLegacyLayer(layer.id);
         auto outputLayer = test->mDisplay->getCompositionDisplay()->injectOutputLayerForTest(
-                layer->getCompositionEngineLayerFE());
+                legacyLayer->getCompositionEngineLayerFE({.id = layer.id}));
         outputLayer->editState().visibleRegion = Region(Rect(0, 0, 100, 100));
         outputLayer->editState().outputSpaceVisibleRegion = Region(Rect(0, 0, 100, 100));
 
         Mock::VerifyAndClear(test->mComposer);
 
-        test->mFlinger.mutableDrawingState().layersSortedByZ.add(layer);
+        auto layerCopy = std::make_unique<frontend::RequestedLayerState>(layer);
+        test->mFlinger.addLayer(layerCopy);
         test->mFlinger.mutableVisibleRegionsDirty() = true;
     }
 
@@ -820,10 +806,9 @@
         EXPECT_CALL(*test->mComposer, destroyLayer(HWC_DISPLAY, HWC_LAYER))
                 .WillOnce(Return(Error::NONE));
 
+        test->mFlinger.destroyAllLayerHandles();
         test->mDisplay->getCompositionDisplay()->clearOutputLayers();
-        test->mFlinger.mutableDrawingState().layersSortedByZ.clear();
         test->mFlinger.mutablePreviouslyComposedLayers().clear();
-
         // Layer should be unregistered with scheduler.
         test->mFlinger.commit();
         EXPECT_EQ(0u, test->mFlinger.scheduler()->layerHistorySize());
@@ -833,17 +818,17 @@
 template <typename LayerProperties>
 struct EffectLayerVariant : public BaseLayerVariant<LayerProperties> {
     using Base = BaseLayerVariant<LayerProperties>;
-    using FlingerLayerType = sp<Layer>;
-
-    static FlingerLayerType createLayer(CompositionTest* test) {
-        FlingerLayerType layer = Base::template createLayerWithFactory<Layer>(test, [test]() {
-            return sp<Layer>::make(LayerCreationArgs(test->mFlinger.flinger(), sp<Client>(),
-                                                     "test-layer", LayerProperties::LAYER_FLAGS,
-                                                     LayerMetadata()));
+    static frontend::RequestedLayerState createLayer(CompositionTest* test) {
+        frontend::RequestedLayerState layer = Base::template createLayerWithFactory<
+                frontend::RequestedLayerState>(test, [test]() {
+            auto args = LayerCreationArgs(test->mFlinger.flinger(), sp<Client>(), "test-layer",
+                                          LayerProperties::LAYER_FLAGS, LayerMetadata());
+            auto legacyLayer = sp<Layer>::make(args);
+            test->mFlinger.injectLegacyLayer(legacyLayer);
+            return frontend::RequestedLayerState(args);
         });
 
-        auto& layerDrawingState = test->mFlinger.mutableLayerDrawingState(layer);
-        layerDrawingState.crop = Rect(0, 0, LayerProperties::HEIGHT, LayerProperties::WIDTH);
+        layer.crop = Rect(0, 0, LayerProperties::HEIGHT, LayerProperties::WIDTH);
         return layer;
     }
 
@@ -869,13 +854,15 @@
 template <typename LayerProperties>
 struct BufferLayerVariant : public BaseLayerVariant<LayerProperties> {
     using Base = BaseLayerVariant<LayerProperties>;
-    using FlingerLayerType = sp<Layer>;
 
-    static FlingerLayerType createLayer(CompositionTest* test) {
-        FlingerLayerType layer = Base::template createLayerWithFactory<Layer>(test, [test]() {
+    static frontend::RequestedLayerState createLayer(CompositionTest* test) {
+        frontend::RequestedLayerState layer = Base::template createLayerWithFactory<
+                frontend::RequestedLayerState>(test, [test]() {
             LayerCreationArgs args(test->mFlinger.flinger(), sp<Client>(), "test-layer",
                                    LayerProperties::LAYER_FLAGS, LayerMetadata());
-            return sp<Layer>::make(args);
+            auto legacyLayer = sp<Layer>::make(args);
+            test->mFlinger.injectLegacyLayer(legacyLayer);
+            return frontend::RequestedLayerState(args);
         });
 
         LayerProperties::setupLayerState(test, layer);
@@ -917,13 +904,14 @@
 template <typename LayerProperties>
 struct ContainerLayerVariant : public BaseLayerVariant<LayerProperties> {
     using Base = BaseLayerVariant<LayerProperties>;
-    using FlingerLayerType = sp<Layer>;
 
-    static FlingerLayerType createLayer(CompositionTest* test) {
+    static frontend::RequestedLayerState createLayer(CompositionTest* test) {
         LayerCreationArgs args(test->mFlinger.flinger(), sp<Client>(), "test-container-layer",
                                LayerProperties::LAYER_FLAGS, LayerMetadata());
-        FlingerLayerType layer = sp<Layer>::make(args);
-        Base::template initLayerDrawingStateAndComputeBounds(test, layer);
+        sp<Layer> legacyLayer = sp<Layer>::make(args);
+        test->mFlinger.injectLegacyLayer(legacyLayer);
+        frontend::RequestedLayerState layer(args);
+        Base::initLayerDrawingStateAndComputeBounds(test, layer);
         return layer;
     }
 };
@@ -931,29 +919,19 @@
 template <typename LayerVariant, typename ParentLayerVariant>
 struct ChildLayerVariant : public LayerVariant {
     using Base = LayerVariant;
-    using FlingerLayerType = typename LayerVariant::FlingerLayerType;
     using ParentBase = ParentLayerVariant;
 
-    static FlingerLayerType createLayer(CompositionTest* test) {
+    static frontend::RequestedLayerState createLayer(CompositionTest* test) {
         // Need to create child layer first. Otherwise layer history size will be 2.
-        FlingerLayerType layer = Base::createLayer(test);
-
-        typename ParentBase::FlingerLayerType parentLayer = ParentBase::createLayer(test);
-        parentLayer->addChild(layer);
-        test->mFlinger.setLayerDrawingParent(layer, parentLayer);
-
-        test->mAuxiliaryLayers.push_back(parentLayer);
-
+        frontend::RequestedLayerState layer = Base::createLayer(test);
+        frontend::RequestedLayerState parentLayer = ParentBase::createLayer(test);
+        layer.parentId = parentLayer.id;
+        auto layerCopy = std::make_unique<frontend::RequestedLayerState>(parentLayer);
+        test->mFlinger.addLayer(layerCopy);
         return layer;
     }
 
-    static void cleanupInjectedLayers(CompositionTest* test) {
-        // Clear auxiliary layers first so that child layer can be successfully destroyed in the
-        // following call.
-        test->mAuxiliaryLayers.clear();
-
-        Base::cleanupInjectedLayers(test);
-    }
+    static void cleanupInjectedLayers(CompositionTest* test) { Base::cleanupInjectedLayers(test); }
 };
 
 /* ------------------------------------------------------------------------
@@ -1016,7 +994,7 @@
  */
 
 struct CompositionResultBaseVariant {
-    static void setupLayerState(CompositionTest*, sp<Layer>) {}
+    static void setupLayerState(CompositionTest*, frontend::RequestedLayerState&) {}
 
     template <typename Case>
     static void setupCallExpectationsForDirtyGeometry(CompositionTest* test) {
@@ -1056,9 +1034,8 @@
 };
 
 struct ForcedClientCompositionResultVariant : public CompositionResultBaseVariant {
-    static void setupLayerState(CompositionTest* test, sp<Layer> layer) {
-        const auto outputLayer =
-                TestableSurfaceFlinger::findOutputLayerForDisplay(layer, test->mDisplay);
+    static void setupLayerState(CompositionTest* test, frontend::RequestedLayerState& layer) {
+        const auto outputLayer = test->mFlinger.findOutputLayerForDisplay(layer.id, test->mDisplay);
         LOG_FATAL_IF(!outputLayer);
         outputLayer->editState().forceClientComposition = true;
     }
@@ -1079,7 +1056,7 @@
 };
 
 struct ForcedClientCompositionViaDebugOptionResultVariant : public CompositionResultBaseVariant {
-    static void setupLayerState(CompositionTest* test, sp<Layer>) {
+    static void setupLayerState(CompositionTest* test, frontend::RequestedLayerState&) {
         test->mFlinger.mutableDebugDisableHWC() = true;
     }
 
@@ -1099,7 +1076,7 @@
 };
 
 struct EmptyScreenshotResultVariant {
-    static void setupLayerState(CompositionTest*, sp<Layer>) {}
+    static void setupLayerState(CompositionTest*, frontend::RequestedLayerState&) {}
 
     template <typename Case>
     static void setupCallExpectations(CompositionTest*) {}
@@ -1365,28 +1342,6 @@
  *  Layers with a parent layer with ISurfaceComposerClient::eSecure, on a non-secure display
  */
 
-TEST_F(CompositionTest,
-       HWCComposedBufferLayerWithSecureParentLayerOnInsecureDisplayWithDirtyGeometry) {
-    displayRefreshCompositionDirtyGeometry<CompositionCase<
-            InsecureDisplaySetupVariant,
-            ChildLayerVariant<BufferLayerVariant<ParentSecureLayerProperties>,
-                              ContainerLayerVariant<SecureLayerProperties>>,
-            KeepCompositionTypeVariant<
-                    aidl::android::hardware::graphics::composer3::Composition::CLIENT>,
-            ForcedClientCompositionResultVariant>>();
-}
-
-TEST_F(CompositionTest,
-       HWCComposedBufferLayerWithSecureParentLayerOnInsecureDisplayWithDirtyFrame) {
-    displayRefreshCompositionDirtyFrame<CompositionCase<
-            InsecureDisplaySetupVariant,
-            ChildLayerVariant<BufferLayerVariant<ParentSecureLayerProperties>,
-                              ContainerLayerVariant<SecureLayerProperties>>,
-            KeepCompositionTypeVariant<
-                    aidl::android::hardware::graphics::composer3::Composition::CLIENT>,
-            ForcedClientCompositionResultVariant>>();
-}
-
 TEST_F(CompositionTest, captureScreenBufferLayerWithSecureParentLayerOnInsecureDisplay) {
     captureScreenComposition<
             CompositionCase<InsecureDisplaySetupVariant,
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h b/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
index f26336a..db3c0a1 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
@@ -498,9 +498,7 @@
 constexpr int PHYSICAL_DISPLAY_FLAGS = 0x1;
 
 template <typename PhysicalDisplay, int width, int height,
-          Secure secure = (PhysicalDisplay::CONNECTION_TYPE == ui::DisplayConnectionType::Internal)
-                  ? Secure::TRUE
-                  : Secure::FALSE>
+          Secure secure = (PhysicalDisplay::SECURE) ? Secure::TRUE : Secure::FALSE>
 struct PhysicalDisplayVariant
       : DisplayVariant<PhysicalDisplayIdType<PhysicalDisplay>, width, height, Async::FALSE, secure,
                        PhysicalDisplay::PRIMARY, GRALLOC_USAGE_PHYSICAL_DISPLAY,
@@ -515,16 +513,18 @@
 struct PrimaryDisplay {
     static constexpr auto CONNECTION_TYPE = ui::DisplayConnectionType::Internal;
     static constexpr Primary PRIMARY = Primary::TRUE;
+    static constexpr bool SECURE = true;
     static constexpr uint8_t PORT = 255;
     static constexpr HWDisplayId HWC_DISPLAY_ID = 1001;
     static constexpr bool HAS_IDENTIFICATION_DATA = hasIdentificationData;
     static constexpr auto GET_IDENTIFICATION_DATA = getInternalEdid;
 };
 
-template <ui::DisplayConnectionType connectionType, bool hasIdentificationData>
+template <ui::DisplayConnectionType connectionType, bool hasIdentificationData, bool secure>
 struct SecondaryDisplay {
     static constexpr auto CONNECTION_TYPE = connectionType;
     static constexpr Primary PRIMARY = Primary::FALSE;
+    static constexpr bool SECURE = secure;
     static constexpr uint8_t PORT = 254;
     static constexpr HWDisplayId HWC_DISPLAY_ID = 1002;
     static constexpr bool HAS_IDENTIFICATION_DATA = hasIdentificationData;
@@ -533,9 +533,14 @@
                                                                   : getExternalEdid;
 };
 
+constexpr bool kSecure = true;
+constexpr bool kNonSecure = false;
+
+template <bool secure>
 struct TertiaryDisplay {
     static constexpr auto CONNECTION_TYPE = ui::DisplayConnectionType::External;
     static constexpr Primary PRIMARY = Primary::FALSE;
+    static constexpr bool SECURE = secure;
     static constexpr uint8_t PORT = 253;
     static constexpr HWDisplayId HWC_DISPLAY_ID = 1003;
     static constexpr auto GET_IDENTIFICATION_DATA = getExternalEdid;
@@ -545,14 +550,26 @@
 
 using InnerDisplayVariant = PhysicalDisplayVariant<PrimaryDisplay<true>, 1840, 2208>;
 using OuterDisplayVariant =
-        PhysicalDisplayVariant<SecondaryDisplay<ui::DisplayConnectionType::Internal, true>, 1080,
-                               2092>;
+        PhysicalDisplayVariant<SecondaryDisplay<ui::DisplayConnectionType::Internal,
+                                                /*hasIdentificationData=*/true, kSecure>,
+                               1080, 2092>;
+using OuterDisplayNonSecureVariant =
+        PhysicalDisplayVariant<SecondaryDisplay<ui::DisplayConnectionType::Internal,
+                                                /*hasIdentificationData=*/true, kNonSecure>,
+                               1080, 2092>;
 
 using ExternalDisplayVariant =
-        PhysicalDisplayVariant<SecondaryDisplay<ui::DisplayConnectionType::External, false>, 1920,
-                               1280>;
+        PhysicalDisplayVariant<SecondaryDisplay<ui::DisplayConnectionType::External,
+                                                /*hasIdentificationData=*/false, kSecure>,
+                               1920, 1280>;
+using ExternalDisplayNonSecureVariant =
+        PhysicalDisplayVariant<SecondaryDisplay<ui::DisplayConnectionType::External,
+                                                /*hasIdentificationData=*/false, kNonSecure>,
+                               1920, 1280>;
 
-using TertiaryDisplayVariant = PhysicalDisplayVariant<TertiaryDisplay, 1600, 1200>;
+using TertiaryDisplayVariant = PhysicalDisplayVariant<TertiaryDisplay<kSecure>, 1600, 1200>;
+using TertiaryDisplayNonSecureVariant =
+        PhysicalDisplayVariant<TertiaryDisplay<kNonSecure>, 1600, 1200>;
 
 // A virtual display not supported by the HWC.
 constexpr uint32_t GRALLOC_USAGE_NONHWC_VIRTUAL_DISPLAY = 0;
@@ -750,10 +767,18 @@
         Case<ExternalDisplayVariant, WideColorNotSupportedVariant<ExternalDisplayVariant>,
              HdrNotSupportedVariant<ExternalDisplayVariant>,
              NoPerFrameMetadataSupportVariant<ExternalDisplayVariant>>;
+using SimpleExternalDisplayNonSecureCase =
+        Case<ExternalDisplayVariant, WideColorNotSupportedVariant<ExternalDisplayNonSecureVariant>,
+             HdrNotSupportedVariant<ExternalDisplayNonSecureVariant>,
+             NoPerFrameMetadataSupportVariant<ExternalDisplayNonSecureVariant>>;
 using SimpleTertiaryDisplayCase =
         Case<TertiaryDisplayVariant, WideColorNotSupportedVariant<TertiaryDisplayVariant>,
              HdrNotSupportedVariant<TertiaryDisplayVariant>,
              NoPerFrameMetadataSupportVariant<TertiaryDisplayVariant>>;
+using SimpleTertiaryDisplayNonSecureCase =
+        Case<TertiaryDisplayVariant, WideColorNotSupportedVariant<TertiaryDisplayNonSecureVariant>,
+             HdrNotSupportedVariant<TertiaryDisplayNonSecureVariant>,
+             NoPerFrameMetadataSupportVariant<TertiaryDisplayNonSecureVariant>>;
 
 using NonHwcVirtualDisplayCase =
         Case<NonHwcVirtualDisplayVariant<1024, 768, Secure::FALSE>,
diff --git a/services/surfaceflinger/tests/unittests/FrameRateSelectionPriorityTest.cpp b/services/surfaceflinger/tests/unittests/FrameRateSelectionPriorityTest.cpp
deleted file mode 100644
index d30d5b8..0000000
--- a/services/surfaceflinger/tests/unittests/FrameRateSelectionPriorityTest.cpp
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Copyright 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-
-#include "Layer.h"
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-
-namespace android {
-
-using testing::_;
-using testing::DoAll;
-using testing::Mock;
-using testing::Return;
-using testing::SetArgPointee;
-
-using android::Hwc2::IComposer;
-using android::Hwc2::IComposerClient;
-
-/**
- * This class covers all the test that are related to refresh rate selection.
- */
-class RefreshRateSelectionTest : public testing::Test {
-public:
-    RefreshRateSelectionTest();
-    ~RefreshRateSelectionTest() override;
-
-protected:
-    static constexpr int DEFAULT_DISPLAY_WIDTH = 1920;
-    static constexpr int DEFAULT_DISPLAY_HEIGHT = 1024;
-    static constexpr uint32_t WIDTH = 100;
-    static constexpr uint32_t HEIGHT = 100;
-    static constexpr uint32_t LAYER_FLAGS = 0;
-    static constexpr int32_t PRIORITY_UNSET = -1;
-
-    sp<Layer> createBufferStateLayer();
-    sp<Layer> createEffectLayer();
-
-    void setParent(Layer* child, Layer* parent);
-    void commitTransaction(Layer* layer);
-
-    TestableSurfaceFlinger mFlinger;
-
-    sp<Client> mClient;
-    sp<Layer> mParent;
-    sp<Layer> mChild;
-    sp<Layer> mGrandChild;
-};
-
-RefreshRateSelectionTest::RefreshRateSelectionTest() {
-    const ::testing::TestInfo* const test_info =
-            ::testing::UnitTest::GetInstance()->current_test_info();
-    ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
-
-    mFlinger.setupMockScheduler();
-    mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
-}
-
-RefreshRateSelectionTest::~RefreshRateSelectionTest() {
-    const ::testing::TestInfo* const test_info =
-            ::testing::UnitTest::GetInstance()->current_test_info();
-    ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
-}
-
-sp<Layer> RefreshRateSelectionTest::createBufferStateLayer() {
-    sp<Client> client;
-    LayerCreationArgs args(mFlinger.flinger(), client, "buffer-queue-layer", LAYER_FLAGS,
-                           LayerMetadata());
-    return sp<Layer>::make(args);
-}
-
-sp<Layer> RefreshRateSelectionTest::createEffectLayer() {
-    sp<Client> client;
-    LayerCreationArgs args(mFlinger.flinger(), client, "color-layer", LAYER_FLAGS, LayerMetadata());
-    return sp<Layer>::make(args);
-}
-
-void RefreshRateSelectionTest::setParent(Layer* child, Layer* parent) {
-    child->setParent(sp<Layer>::fromExisting(parent));
-}
-
-void RefreshRateSelectionTest::commitTransaction(Layer* layer) {
-    layer->commitTransaction();
-}
-
-namespace {
-
-TEST_F(RefreshRateSelectionTest, testPriorityOnBufferStateLayers) {
-    mParent = createBufferStateLayer();
-    mChild = createBufferStateLayer();
-    setParent(mChild.get(), mParent.get());
-    mGrandChild = createBufferStateLayer();
-    setParent(mGrandChild.get(), mChild.get());
-
-    ASSERT_EQ(PRIORITY_UNSET, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(PRIORITY_UNSET, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(PRIORITY_UNSET, mGrandChild->getFrameRateSelectionPriority());
-
-    // Child has its own priority.
-    mGrandChild->setFrameRateSelectionPriority(1);
-    commitTransaction(mGrandChild.get());
-    ASSERT_EQ(PRIORITY_UNSET, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(PRIORITY_UNSET, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mGrandChild->getFrameRateSelectionPriority());
-
-    // Child inherits from his parent.
-    mChild->setFrameRateSelectionPriority(1);
-    commitTransaction(mChild.get());
-    mGrandChild->setFrameRateSelectionPriority(PRIORITY_UNSET);
-    commitTransaction(mGrandChild.get());
-    ASSERT_EQ(PRIORITY_UNSET, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mGrandChild->getFrameRateSelectionPriority());
-
-    // Grandchild inherits from his grand parent.
-    mParent->setFrameRateSelectionPriority(1);
-    commitTransaction(mParent.get());
-    mChild->setFrameRateSelectionPriority(PRIORITY_UNSET);
-    commitTransaction(mChild.get());
-    mGrandChild->setFrameRateSelectionPriority(PRIORITY_UNSET);
-    commitTransaction(mGrandChild.get());
-    ASSERT_EQ(1, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mGrandChild->getFrameRateSelectionPriority());
-}
-
-TEST_F(RefreshRateSelectionTest, testPriorityOnEffectLayers) {
-    mParent = createEffectLayer();
-    mChild = createEffectLayer();
-    setParent(mChild.get(), mParent.get());
-    mGrandChild = createEffectLayer();
-    setParent(mGrandChild.get(), mChild.get());
-
-    ASSERT_EQ(PRIORITY_UNSET, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(PRIORITY_UNSET, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(PRIORITY_UNSET, mGrandChild->getFrameRateSelectionPriority());
-
-    // Child has its own priority.
-    mGrandChild->setFrameRateSelectionPriority(1);
-    commitTransaction(mGrandChild.get());
-    ASSERT_EQ(PRIORITY_UNSET, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(PRIORITY_UNSET, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mGrandChild->getFrameRateSelectionPriority());
-
-    // Child inherits from his parent.
-    mChild->setFrameRateSelectionPriority(1);
-    commitTransaction(mChild.get());
-    mGrandChild->setFrameRateSelectionPriority(PRIORITY_UNSET);
-    commitTransaction(mGrandChild.get());
-    ASSERT_EQ(PRIORITY_UNSET, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mGrandChild->getFrameRateSelectionPriority());
-
-    // Grandchild inherits from his grand parent.
-    mParent->setFrameRateSelectionPriority(1);
-    commitTransaction(mParent.get());
-    mChild->setFrameRateSelectionPriority(PRIORITY_UNSET);
-    commitTransaction(mChild.get());
-    mGrandChild->setFrameRateSelectionPriority(PRIORITY_UNSET);
-    commitTransaction(mGrandChild.get());
-    ASSERT_EQ(1, mParent->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mChild->getFrameRateSelectionPriority());
-    ASSERT_EQ(1, mGrandChild->getFrameRateSelectionPriority());
-}
-
-} // namespace
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp b/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
deleted file mode 100644
index 5c742d7..0000000
--- a/services/surfaceflinger/tests/unittests/FrameRateSelectionStrategyTest.cpp
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Copyright 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-
-#include "Layer.h"
-#include "LayerTestUtils.h"
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-
-namespace android {
-
-using testing::DoAll;
-using testing::Mock;
-using testing::SetArgPointee;
-
-using android::Hwc2::IComposer;
-using android::Hwc2::IComposerClient;
-
-using scheduler::LayerHistory;
-
-using FrameRate = Layer::FrameRate;
-using FrameRateCompatibility = Layer::FrameRateCompatibility;
-using FrameRateSelectionStrategy = scheduler::LayerInfo::FrameRateSelectionStrategy;
-
-/**
- * This class tests the behaviour of Layer::setFrameRateSelectionStrategy.
- */
-class FrameRateSelectionStrategyTest : public BaseLayerTest {
-protected:
-    const FrameRate FRAME_RATE_VOTE1 = FrameRate(11_Hz, FrameRateCompatibility::Default);
-    const FrameRate FRAME_RATE_VOTE2 = FrameRate(22_Hz, FrameRateCompatibility::Default);
-    const FrameRate FRAME_RATE_VOTE3 = FrameRate(33_Hz, FrameRateCompatibility::Default);
-    const FrameRate FRAME_RATE_DEFAULT = FrameRate(Fps(), FrameRateCompatibility::Default);
-    const FrameRate FRAME_RATE_TREE = FrameRate(Fps(), FrameRateCompatibility::NoVote);
-
-    FrameRateSelectionStrategyTest();
-
-    void addChild(sp<Layer> layer, sp<Layer> child);
-    void removeChild(sp<Layer> layer, sp<Layer> child);
-    void commitTransaction();
-
-    std::vector<sp<Layer>> mLayers;
-};
-
-FrameRateSelectionStrategyTest::FrameRateSelectionStrategyTest() {
-    const ::testing::TestInfo* const test_info =
-            ::testing::UnitTest::GetInstance()->current_test_info();
-    ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
-
-    mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
-}
-
-void FrameRateSelectionStrategyTest::addChild(sp<Layer> layer, sp<Layer> child) {
-    layer->addChild(child);
-}
-
-void FrameRateSelectionStrategyTest::removeChild(sp<Layer> layer, sp<Layer> child) {
-    layer->removeChild(child);
-}
-
-void FrameRateSelectionStrategyTest::commitTransaction() {
-    for (auto layer : mLayers) {
-        layer->commitTransaction();
-    }
-}
-
-namespace {
-
-INSTANTIATE_TEST_SUITE_P(PerLayerType, FrameRateSelectionStrategyTest,
-                         testing::Values(std::make_shared<BufferStateLayerFactory>(),
-                                         std::make_shared<EffectLayerFactory>()),
-                         PrintToStringParamName);
-
-TEST_P(FrameRateSelectionStrategyTest, SetAndGet) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-    auto layer = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    layer->setFrameRate(FRAME_RATE_VOTE1.vote);
-    layer->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              layer->getDrawingState().frameRateSelectionStrategy);
-}
-
-TEST_P(FrameRateSelectionStrategyTest, SetChildOverrideChildren) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    addChild(parent, child1);
-    addChild(child1, child2);
-
-    child2->setFrameRate(FRAME_RATE_VOTE1.vote);
-    child2->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              parent->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              child1->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              child2->getDrawingState().frameRateSelectionStrategy);
-}
-
-TEST_P(FrameRateSelectionStrategyTest, SetParentOverrideChildren) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-    auto layer1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto layer2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto layer3 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    addChild(layer1, layer2);
-    addChild(layer2, layer3);
-
-    layer1->setFrameRate(FRAME_RATE_VOTE1.vote);
-    layer1->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
-    layer2->setFrameRate(FRAME_RATE_VOTE2.vote);
-    layer2->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
-    layer3->setFrameRate(FRAME_RATE_VOTE3.vote);
-    commitTransaction();
-
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer1->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              layer1->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer2->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              layer2->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer3->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer3->getDrawingState().frameRateSelectionStrategy);
-
-    layer1->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::Propagate);
-    commitTransaction();
-
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer1->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer1->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE2, layer2->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              layer2->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE2, layer3->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer3->getDrawingState().frameRateSelectionStrategy);
-}
-
-TEST_P(FrameRateSelectionStrategyTest, OverrideChildrenAndSelf) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-    auto layer1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto layer2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto layer3 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    addChild(layer1, layer2);
-    addChild(layer2, layer3);
-
-    layer1->setFrameRate(FRAME_RATE_VOTE1.vote);
-    layer2->setFrameRate(FRAME_RATE_VOTE2.vote);
-    layer2->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::Self);
-    commitTransaction();
-
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer1->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer1->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE2, layer2->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Self,
-              layer2->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_DEFAULT, layer3->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer3->getDrawingState().frameRateSelectionStrategy);
-
-    layer1->setFrameRateSelectionStrategy(FrameRateSelectionStrategy::OverrideChildren);
-    commitTransaction();
-
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer1->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              layer1->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer2->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Self,
-              layer2->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer3->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer3->getDrawingState().frameRateSelectionStrategy);
-
-    layer1->setFrameRate(FRAME_RATE_DEFAULT.vote);
-    commitTransaction();
-
-    EXPECT_EQ(FRAME_RATE_TREE, layer1->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::OverrideChildren,
-              layer1->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE2, layer2->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Self,
-              layer2->getDrawingState().frameRateSelectionStrategy);
-    EXPECT_EQ(FRAME_RATE_VOTE2, layer3->getFrameRateForLayerTree());
-    EXPECT_EQ(FrameRateSelectionStrategy::Propagate,
-              layer3->getDrawingState().frameRateSelectionStrategy);
-}
-
-} // namespace
-} // namespace android
\ No newline at end of file
diff --git a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
index dac9265..9be0fc3 100644
--- a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
+++ b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
@@ -15,6 +15,8 @@
  */
 
 #include <common/test/FlagUtils.h>
+#include "BackgroundExecutor.h"
+#include "Jank/JankTracker.h"
 #include "com_android_graphics_surfaceflinger_flags.h"
 #include "gmock/gmock-spec-builders.h"
 #include "mock/MockTimeStats.h"
@@ -90,8 +92,12 @@
         mTraceCookieCounter = &mFrameTimeline->mTraceCookieCounter;
         maxDisplayFrames = &mFrameTimeline->mMaxDisplayFrames;
         maxTokens = mTokenManager->kMaxTokens;
+
+        JankTracker::clearAndStartCollectingAllJankDataForTesting();
     }
 
+    void TearDown() override { JankTracker::clearAndStopCollectingAllJankDataForTesting(); }
+
     // Each tracing session can be used for a single block of Start -> Stop.
     static std::unique_ptr<perfetto::TracingSession> getTracingSessionForTest() {
         perfetto::TraceConfig cfg;
@@ -175,6 +181,16 @@
                 [&](FrameTimelineDataSource::TraceContext ctx) { ctx.Flush(); });
     }
 
+    std::vector<gui::JankData> getLayerOneJankData() {
+        BackgroundExecutor::getLowPriorityInstance().flushQueue();
+        return JankTracker::getCollectedJankDataForTesting(sLayerIdOne);
+    }
+
+    std::vector<gui::JankData> getLayerTwoJankData() {
+        BackgroundExecutor::getLowPriorityInstance().flushQueue();
+        return JankTracker::getCollectedJankDataForTesting(sLayerIdTwo);
+    }
+
     std::shared_ptr<mock::TimeStats> mTimeStats;
     std::unique_ptr<impl::FrameTimeline> mFrameTimeline;
     impl::TokenManager* mTokenManager;
@@ -339,6 +355,9 @@
     EXPECT_NE(surfaceFrame1->getJankSeverityType(), std::nullopt);
     EXPECT_NE(surfaceFrame2->getJankType(), std::nullopt);
     EXPECT_NE(surfaceFrame2->getJankSeverityType(), std::nullopt);
+
+    EXPECT_EQ(getLayerOneJankData().size(), 1u);
+    EXPECT_EQ(getLayerTwoJankData().size(), 1u);
 }
 
 TEST_F(FrameTimelineTest, displayFrameSkippedComposition) {
@@ -446,6 +465,8 @@
     // The window should have slided by 1 now and the previous 0th display frame
     // should have been removed from the deque
     EXPECT_EQ(compareTimelineItems(displayFrame0->getActuals(), TimelineItem(52, 57, 62)), true);
+
+    EXPECT_EQ(getLayerOneJankData().size(), *maxDisplayFrames);
 }
 
 TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceAfterQueue) {
@@ -458,6 +479,16 @@
     EXPECT_EQ(surfaceFrame->getActuals().endTime, 456);
 }
 
+TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceUnsignaled) {
+    auto surfaceFrame = mFrameTimeline->createSurfaceFrameForToken({}, sPidOne, 0, sLayerIdOne,
+                                                                   "acquireFenceAfterQueue",
+                                                                   "acquireFenceAfterQueue",
+                                                                   /*isBuffer*/ true, sGameMode);
+    surfaceFrame->setActualQueueTime(123);
+    surfaceFrame->setAcquireFenceTime(Fence::SIGNAL_TIME_PENDING);
+    EXPECT_EQ(surfaceFrame->getActuals().endTime, 123);
+}
+
 TEST_F(FrameTimelineTest, surfaceFrameEndTimeAcquireFenceBeforeQueue) {
     auto surfaceFrame = mFrameTimeline->createSurfaceFrameForToken({}, sPidOne, 0, sLayerIdOne,
                                                                    "acquireFenceAfterQueue",
@@ -575,6 +606,8 @@
     presentFence1->signalForTest(70);
 
     mFrameTimeline->setSfPresent(59, presentFence1);
+
+    EXPECT_EQ(getLayerOneJankData().size(), 0u);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsLongSfCpu) {
@@ -603,6 +636,10 @@
     presentFence1->signalForTest(70);
 
     mFrameTimeline->setSfPresent(62, presentFence1);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::SurfaceFlingerCpuDeadlineMissed);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsLongSfGpu) {
@@ -633,6 +670,10 @@
     presentFence1->signalForTest(70);
 
     mFrameTimeline->setSfPresent(59, presentFence1, gpuFence1);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::SurfaceFlingerGpuDeadlineMissed);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsDisplayMiss) {
@@ -661,6 +702,10 @@
     mFrameTimeline->setSfPresent(56, presentFence1);
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::DisplayHAL);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Full);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::DisplayHAL);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsAppMiss) {
@@ -691,6 +736,10 @@
 
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::AppDeadlineMissed);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Partial);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::AppDeadlineMissed);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsSfScheduling) {
@@ -721,6 +770,10 @@
 
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::SurfaceFlingerScheduling);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Full);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::SurfaceFlingerScheduling);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsSfPredictionError) {
@@ -751,6 +804,10 @@
 
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::PredictionError);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Partial);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::PredictionError);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsAppBufferStuffing) {
@@ -782,6 +839,10 @@
 
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::BufferStuffing);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Full);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::BufferStuffing);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_reportsAppMissWithRenderRate) {
@@ -814,6 +875,10 @@
 
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::AppDeadlineMissed);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Full);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::AppDeadlineMissed);
 }
 
 TEST_F(FrameTimelineTest, presentFenceSignaled_displayFramePredictionExpiredPresentsSurfaceFrame) {
@@ -858,6 +923,10 @@
     EXPECT_EQ(surfaceFrame1->getActuals().presentTime, 90);
     EXPECT_EQ(surfaceFrame1->getJankType(), JankType::Unknown | JankType::AppDeadlineMissed);
     EXPECT_EQ(surfaceFrame1->getJankSeverityType(), JankSeverityType::Full);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::Unknown | JankType::AppDeadlineMissed);
 }
 
 /*
@@ -1789,6 +1858,10 @@
     EXPECT_EQ(displayFrame->getFrameReadyMetadata(), FrameReadyMetadata::OnTimeFinish);
     EXPECT_EQ(displayFrame->getJankType(), JankType::None);
     EXPECT_EQ(displayFrame->getJankSeverityType(), JankSeverityType::None);
+
+    auto jankData = getLayerOneJankData();
+    EXPECT_EQ(jankData.size(), 1u);
+    EXPECT_EQ(jankData[0].jankType, JankType::None);
 }
 
 TEST_F(FrameTimelineTest, jankClassification_displayFrameOnTimeFinishEarlyPresent) {
diff --git a/services/surfaceflinger/tests/unittests/GameModeTest.cpp b/services/surfaceflinger/tests/unittests/GameModeTest.cpp
deleted file mode 100644
index 1b5c6e7..0000000
--- a/services/surfaceflinger/tests/unittests/GameModeTest.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-#include <gui/SurfaceComposerClient.h>
-#include <log/log.h>
-
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-
-namespace android {
-
-using testing::_;
-using testing::Mock;
-using testing::Return;
-
-using gui::GameMode;
-using gui::LayerMetadata;
-
-class GameModeTest : public testing::Test {
-public:
-    GameModeTest() {
-        const ::testing::TestInfo* const test_info =
-                ::testing::UnitTest::GetInstance()->current_test_info();
-        ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
-        mFlinger.setupMockScheduler();
-        setupComposer();
-    }
-
-    ~GameModeTest() {
-        const ::testing::TestInfo* const test_info =
-                ::testing::UnitTest::GetInstance()->current_test_info();
-        ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
-    }
-
-    sp<Layer> createLayer() {
-        sp<Client> client;
-        LayerCreationArgs args(mFlinger.flinger(), client, "layer", 0, LayerMetadata());
-        return sp<Layer>::make(args);
-    }
-
-    void setupComposer() {
-        mComposer = new Hwc2::mock::Composer();
-        mFlinger.setupComposer(std::unique_ptr<Hwc2::Composer>(mComposer));
-
-        Mock::VerifyAndClear(mComposer);
-    }
-
-    // Mocks the behavior of applying a transaction from WMShell
-    void setGameModeMetadata(sp<Layer> layer, GameMode gameMode) {
-        mLayerMetadata.setInt32(gui::METADATA_GAME_MODE, static_cast<int32_t>(gameMode));
-        layer->setMetadata(mLayerMetadata);
-        layer->setGameModeForTree(gameMode);
-    }
-
-    TestableSurfaceFlinger mFlinger;
-    Hwc2::mock::Composer* mComposer = nullptr;
-    client_cache_t mClientCache;
-    LayerMetadata mLayerMetadata;
-};
-
-TEST_F(GameModeTest, SetGameModeSetsForAllCurrentChildren) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer1 = createLayer();
-    sp<Layer> childLayer2 = createLayer();
-    rootLayer->addChild(childLayer1);
-    rootLayer->addChild(childLayer2);
-    rootLayer->setGameModeForTree(GameMode::Performance);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-}
-
-TEST_F(GameModeTest, AddChildAppliesGameModeFromParent) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Performance);
-    rootLayer->addChild(childLayer);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
-}
-
-TEST_F(GameModeTest, RemoveChildResetsGameMode) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Performance);
-    rootLayer->addChild(childLayer);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
-
-    rootLayer->removeChild(childLayer);
-    EXPECT_EQ(childLayer->getGameMode(), GameMode::Unsupported);
-}
-
-TEST_F(GameModeTest, ReparentingDoesNotOverrideMetadata) {
-    sp<Layer> rootLayer = createLayer();
-    sp<Layer> childLayer1 = createLayer();
-    sp<Layer> childLayer2 = createLayer();
-    rootLayer->setGameModeForTree(GameMode::Standard);
-    rootLayer->addChild(childLayer1);
-
-    setGameModeMetadata(childLayer2, GameMode::Performance);
-    rootLayer->addChild(childLayer2);
-
-    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Standard);
-    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Standard);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-
-    rootLayer->removeChild(childLayer2);
-    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
-}
-
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/JankTrackerTest.cpp b/services/surfaceflinger/tests/unittests/JankTrackerTest.cpp
new file mode 100644
index 0000000..2941a14
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/JankTrackerTest.cpp
@@ -0,0 +1,216 @@
+/*
+ * Copyright 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <android/gui/BnJankListener.h>
+#include <binder/IInterface.h>
+#include "BackgroundExecutor.h"
+#include "Jank/JankTracker.h"
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+namespace android {
+
+namespace {
+
+using namespace testing;
+
+class MockJankListener : public gui::BnJankListener {
+public:
+    MockJankListener() = default;
+    ~MockJankListener() override = default;
+
+    MOCK_METHOD(binder::Status, onJankData, (const std::vector<gui::JankData>& jankData),
+                (override));
+};
+
+} // anonymous namespace
+
+class JankTrackerTest : public Test {
+public:
+    JankTrackerTest() {}
+
+    void SetUp() override { mListener = sp<StrictMock<MockJankListener>>::make(); }
+
+    void addJankListener(int32_t layerId) {
+        JankTracker::addJankListener(layerId, IInterface::asBinder(mListener));
+    }
+
+    void removeJankListener(int32_t layerId, int64_t after) {
+        JankTracker::removeJankListener(layerId, IInterface::asBinder(mListener), after);
+    }
+
+    void addJankData(int32_t layerId, int jankType) {
+        gui::JankData data;
+        data.frameVsyncId = mVsyncId++;
+        data.jankType = jankType;
+        data.frameIntervalNs = 8333333;
+        JankTracker::onJankData(layerId, data);
+    }
+
+    void flushBackgroundThread() { BackgroundExecutor::getLowPriorityInstance().flushQueue(); }
+
+    size_t listenerCount() { return JankTracker::sListenerCount; }
+
+    std::vector<gui::JankData> getCollectedJankData(int32_t layerId) {
+        return JankTracker::getCollectedJankDataForTesting(layerId);
+    }
+
+    sp<StrictMock<MockJankListener>> mListener = nullptr;
+    int64_t mVsyncId = 1000;
+};
+
+TEST_F(JankTrackerTest, jankDataIsTrackedAndPropagated) {
+    ASSERT_EQ(listenerCount(), 0u);
+
+    EXPECT_CALL(*mListener.get(), onJankData(SizeIs(3)))
+            .WillOnce([](const std::vector<gui::JankData>& jankData) {
+                EXPECT_EQ(jankData[0].frameVsyncId, 1000);
+                EXPECT_EQ(jankData[0].jankType, 1);
+                EXPECT_EQ(jankData[0].frameIntervalNs, 8333333);
+
+                EXPECT_EQ(jankData[1].frameVsyncId, 1001);
+                EXPECT_EQ(jankData[1].jankType, 2);
+                EXPECT_EQ(jankData[1].frameIntervalNs, 8333333);
+
+                EXPECT_EQ(jankData[2].frameVsyncId, 1002);
+                EXPECT_EQ(jankData[2].jankType, 3);
+                EXPECT_EQ(jankData[2].frameIntervalNs, 8333333);
+                return binder::Status::ok();
+            });
+    EXPECT_CALL(*mListener.get(), onJankData(SizeIs(2)))
+            .WillOnce([](const std::vector<gui::JankData>& jankData) {
+                EXPECT_EQ(jankData[0].frameVsyncId, 1003);
+                EXPECT_EQ(jankData[0].jankType, 4);
+                EXPECT_EQ(jankData[0].frameIntervalNs, 8333333);
+
+                EXPECT_EQ(jankData[1].frameVsyncId, 1004);
+                EXPECT_EQ(jankData[1].jankType, 5);
+                EXPECT_EQ(jankData[1].frameIntervalNs, 8333333);
+
+                return binder::Status::ok();
+            });
+
+    addJankListener(123);
+    addJankData(123, 1);
+    addJankData(123, 2);
+    addJankData(123, 3);
+    JankTracker::flushJankData(123);
+    addJankData(123, 4);
+    removeJankListener(123, mVsyncId);
+    addJankData(123, 5);
+    JankTracker::flushJankData(123);
+    addJankData(123, 6);
+    JankTracker::flushJankData(123);
+    removeJankListener(123, 0);
+
+    flushBackgroundThread();
+}
+
+TEST_F(JankTrackerTest, jankDataIsAutomaticallyFlushedInBatches) {
+    ASSERT_EQ(listenerCount(), 0u);
+
+    // needs to be larger than kJankDataBatchSize in JankTracker.cpp.
+    constexpr size_t kNumberOfJankDataToSend = 234;
+
+    size_t jankDataReceived = 0;
+    size_t numBatchesReceived = 0;
+
+    EXPECT_CALL(*mListener.get(), onJankData(_))
+            .WillRepeatedly([&](const std::vector<gui::JankData>& jankData) {
+                jankDataReceived += jankData.size();
+                numBatchesReceived++;
+                return binder::Status::ok();
+            });
+
+    addJankListener(123);
+    for (size_t i = 0; i < kNumberOfJankDataToSend; i++) {
+        addJankData(123, 0);
+    }
+
+    flushBackgroundThread();
+    // Check that we got some data, without explicitly flushing.
+    EXPECT_GT(jankDataReceived, 0u);
+    EXPECT_GT(numBatchesReceived, 0u);
+    EXPECT_LT(numBatchesReceived, jankDataReceived); // batches should be > size 1.
+
+    removeJankListener(123, 0);
+    JankTracker::flushJankData(123);
+    flushBackgroundThread();
+    EXPECT_EQ(jankDataReceived, kNumberOfJankDataToSend);
+}
+
+TEST_F(JankTrackerTest, jankListenerIsRemovedWhenReturningNullError) {
+    ASSERT_EQ(listenerCount(), 0u);
+
+    EXPECT_CALL(*mListener.get(), onJankData(SizeIs(3)))
+            .WillOnce(Return(binder::Status::fromExceptionCode(binder::Status::EX_NULL_POINTER)));
+
+    addJankListener(123);
+    addJankData(123, 1);
+    addJankData(123, 2);
+    addJankData(123, 3);
+    JankTracker::flushJankData(123);
+    addJankData(123, 4);
+    addJankData(123, 5);
+    JankTracker::flushJankData(123);
+    flushBackgroundThread();
+
+    EXPECT_EQ(listenerCount(), 0u);
+}
+
+TEST_F(JankTrackerTest, jankDataIsDroppedIfNobodyIsListening) {
+    ASSERT_EQ(listenerCount(), 0u);
+
+    addJankData(123, 1);
+    addJankData(123, 2);
+    addJankData(123, 3);
+    flushBackgroundThread();
+
+    EXPECT_EQ(getCollectedJankData(123).size(), 0u);
+}
+
+TEST_F(JankTrackerTest, listenerCountTracksRegistrations) {
+    ASSERT_EQ(listenerCount(), 0u);
+
+    addJankListener(123);
+    addJankListener(456);
+    flushBackgroundThread();
+    EXPECT_EQ(listenerCount(), 2u);
+
+    removeJankListener(123, 0);
+    JankTracker::flushJankData(123);
+    removeJankListener(456, 0);
+    JankTracker::flushJankData(456);
+    flushBackgroundThread();
+    EXPECT_EQ(listenerCount(), 0u);
+}
+
+TEST_F(JankTrackerTest, listenerCountIsAccurateOnDuplicateRegistration) {
+    ASSERT_EQ(listenerCount(), 0u);
+
+    addJankListener(123);
+    addJankListener(123);
+    flushBackgroundThread();
+    EXPECT_EQ(listenerCount(), 1u);
+
+    removeJankListener(123, 0);
+    JankTracker::flushJankData(123);
+    flushBackgroundThread();
+    EXPECT_EQ(listenerCount(), 0u);
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/surfaceflinger/tests/unittests/LayerHierarchyTest.h b/services/surfaceflinger/tests/unittests/LayerHierarchyTest.h
index 8b3303c..37cda3e 100644
--- a/services/surfaceflinger/tests/unittests/LayerHierarchyTest.h
+++ b/services/surfaceflinger/tests/unittests/LayerHierarchyTest.h
@@ -25,13 +25,15 @@
 #include "FrontEnd/LayerCreationArgs.h"
 #include "FrontEnd/LayerHierarchy.h"
 #include "FrontEnd/LayerLifecycleManager.h"
+#include "LayerLifecycleManagerHelper.h"
+
 #include "FrontEnd/LayerSnapshotBuilder.h"
 
 namespace android::surfaceflinger::frontend {
 
-class LayerHierarchyTestBase : public testing::Test {
+class LayerHierarchyTestBase : public testing::Test, public LayerLifecycleManagerHelper {
 protected:
-    LayerHierarchyTestBase() {
+    LayerHierarchyTestBase() : LayerLifecycleManagerHelper(mLifecycleManager) {
         // tree with 3 levels of children
         // ROOT
         // ├── 1
@@ -55,24 +57,6 @@
         createLayer(1221, 122);
     }
 
-    LayerCreationArgs createArgs(uint32_t id, bool canBeRoot, uint32_t parentId,
-                                 uint32_t layerIdToMirror) {
-        LayerCreationArgs args(std::make_optional(id));
-        args.name = "testlayer";
-        args.addToRoot = canBeRoot;
-        args.parentId = parentId;
-        args.layerIdToMirror = layerIdToMirror;
-        return args;
-    }
-
-    LayerCreationArgs createDisplayMirrorArgs(uint32_t id, ui::LayerStack layerStackToMirror) {
-        LayerCreationArgs args(std::make_optional(id));
-        args.name = "testlayer";
-        args.addToRoot = true;
-        args.layerStackToMirror = layerStackToMirror;
-        return args;
-    }
-
     std::vector<uint32_t> getTraversalPath(const LayerHierarchy& hierarchy) const {
         std::vector<uint32_t> layerIds;
         hierarchy.traverse([&layerIds = layerIds](const LayerHierarchy& hierarchy,
@@ -94,98 +78,6 @@
         return layerIds;
     }
 
-    virtual void createRootLayer(uint32_t id) {
-        std::vector<std::unique_ptr<RequestedLayerState>> layers;
-        layers.emplace_back(std::make_unique<RequestedLayerState>(
-                createArgs(/*id=*/id, /*canBeRoot=*/true, /*parent=*/UNASSIGNED_LAYER_ID,
-                           /*mirror=*/UNASSIGNED_LAYER_ID)));
-        mLifecycleManager.addLayers(std::move(layers));
-    }
-
-    void createDisplayMirrorLayer(uint32_t id, ui::LayerStack layerStack) {
-        std::vector<std::unique_ptr<RequestedLayerState>> layers;
-        layers.emplace_back(std::make_unique<RequestedLayerState>(
-                createDisplayMirrorArgs(/*id=*/id, layerStack)));
-        mLifecycleManager.addLayers(std::move(layers));
-    }
-
-    virtual void createLayer(uint32_t id, uint32_t parentId) {
-        std::vector<std::unique_ptr<RequestedLayerState>> layers;
-        layers.emplace_back(std::make_unique<RequestedLayerState>(
-                createArgs(/*id=*/id, /*canBeRoot=*/false, /*parent=*/parentId,
-                           /*mirror=*/UNASSIGNED_LAYER_ID)));
-        mLifecycleManager.addLayers(std::move(layers));
-    }
-
-    std::vector<TransactionState> reparentLayerTransaction(uint32_t id, uint32_t newParentId) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-        transactions.back().states.front().parentId = newParentId;
-        transactions.back().states.front().state.what = layer_state_t::eReparent;
-        transactions.back().states.front().relativeParentId = UNASSIGNED_LAYER_ID;
-        transactions.back().states.front().layerId = id;
-        return transactions;
-    }
-
-    void reparentLayer(uint32_t id, uint32_t newParentId) {
-        mLifecycleManager.applyTransactions(reparentLayerTransaction(id, newParentId));
-    }
-
-    std::vector<TransactionState> relativeLayerTransaction(uint32_t id, uint32_t relativeParentId) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-        transactions.back().states.front().relativeParentId = relativeParentId;
-        transactions.back().states.front().state.what = layer_state_t::eRelativeLayerChanged;
-        transactions.back().states.front().layerId = id;
-        return transactions;
-    }
-
-    void reparentRelativeLayer(uint32_t id, uint32_t relativeParentId) {
-        mLifecycleManager.applyTransactions(relativeLayerTransaction(id, relativeParentId));
-    }
-
-    void removeRelativeZ(uint32_t id) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-        transactions.back().states.front().state.what = layer_state_t::eLayerChanged;
-        transactions.back().states.front().layerId = id;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setPosition(uint32_t id, float x, float y) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-        transactions.back().states.front().state.what = layer_state_t::ePositionChanged;
-        transactions.back().states.front().state.x = x;
-        transactions.back().states.front().state.y = y;
-        transactions.back().states.front().layerId = id;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    virtual void mirrorLayer(uint32_t id, uint32_t parentId, uint32_t layerIdToMirror) {
-        std::vector<std::unique_ptr<RequestedLayerState>> layers;
-        layers.emplace_back(std::make_unique<RequestedLayerState>(
-                createArgs(/*id=*/id, /*canBeRoot=*/false, /*parent=*/parentId,
-                           /*mirror=*/layerIdToMirror)));
-        mLifecycleManager.addLayers(std::move(layers));
-    }
-
-    void updateBackgroundColor(uint32_t id, half alpha) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-        transactions.back().states.front().state.what = layer_state_t::eBackgroundColorChanged;
-        transactions.back().states.front().state.bgColor.a = alpha;
-        transactions.back().states.front().layerId = id;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void destroyLayerHandle(uint32_t id) { mLifecycleManager.onHandlesDestroyed({{id, "test"}}); }
-
     void updateAndVerify(LayerHierarchyBuilder& hierarchyBuilder) {
         hierarchyBuilder.update(mLifecycleManager);
         mLifecycleManager.commitChanges();
@@ -201,321 +93,6 @@
                 mLifecycleManager.getGlobalChanges().test(RequestedLayerState::Changes::Hierarchy));
     }
 
-    std::vector<TransactionState> setZTransaction(uint32_t id, int32_t z) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eLayerChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.z = z;
-        return transactions;
-    }
-
-    void setZ(uint32_t id, int32_t z) {
-        mLifecycleManager.applyTransactions(setZTransaction(id, z));
-    }
-
-    void setCrop(uint32_t id, const Rect& crop) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eCropChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.crop = crop;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setFlags(uint32_t id, uint32_t mask, uint32_t flags) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eFlagsChanged;
-        transactions.back().states.front().state.flags = flags;
-        transactions.back().states.front().state.mask = mask;
-        transactions.back().states.front().layerId = id;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setAlpha(uint32_t id, float alpha) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eAlphaChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.color.a = static_cast<half>(alpha);
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void hideLayer(uint32_t id) {
-        setFlags(id, layer_state_t::eLayerHidden, layer_state_t::eLayerHidden);
-    }
-
-    void showLayer(uint32_t id) { setFlags(id, layer_state_t::eLayerHidden, 0); }
-
-    void setColor(uint32_t id, half3 rgb = half3(1._hf, 1._hf, 1._hf)) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-        transactions.back().states.front().state.what = layer_state_t::eColorChanged;
-        transactions.back().states.front().state.color.rgb = rgb;
-        transactions.back().states.front().layerId = id;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setLayerStack(uint32_t id, int32_t layerStack) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eLayerStackChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.layerStack = ui::LayerStack::fromValue(layerStack);
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setTouchableRegion(uint32_t id, Region region) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eInputInfoChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.windowInfoHandle =
-                sp<gui::WindowInfoHandle>::make();
-        auto inputInfo = transactions.back().states.front().state.windowInfoHandle->editInfo();
-        inputInfo->touchableRegion = region;
-        inputInfo->token = sp<BBinder>::make();
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setInputInfo(uint32_t id, std::function<void(gui::WindowInfo&)> configureInput) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eInputInfoChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.windowInfoHandle =
-                sp<gui::WindowInfoHandle>::make();
-        auto inputInfo = transactions.back().states.front().state.windowInfoHandle->editInfo();
-        if (!inputInfo->token) {
-            inputInfo->token = sp<BBinder>::make();
-        }
-        configureInput(*inputInfo);
-
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setTouchableRegionCrop(uint32_t id, Region region, uint32_t touchCropId,
-                                bool replaceTouchableRegionWithCrop) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eInputInfoChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.windowInfoHandle =
-                sp<gui::WindowInfoHandle>::make();
-        auto inputInfo = transactions.back().states.front().state.windowInfoHandle->editInfo();
-        inputInfo->touchableRegion = region;
-        inputInfo->replaceTouchableRegionWithCrop = replaceTouchableRegionWithCrop;
-        transactions.back().states.front().touchCropId = touchCropId;
-
-        inputInfo->token = sp<BBinder>::make();
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setBackgroundBlurRadius(uint32_t id, uint32_t backgroundBlurRadius) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eBackgroundBlurRadiusChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.backgroundBlurRadius = backgroundBlurRadius;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setFrameRateSelectionPriority(uint32_t id, int32_t priority) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eFrameRateSelectionPriority;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.frameRateSelectionPriority = priority;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setFrameRate(uint32_t id, float frameRate, int8_t compatibility,
-                      int8_t changeFrameRateStrategy) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eFrameRateChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.frameRate = frameRate;
-        transactions.back().states.front().state.frameRateCompatibility = compatibility;
-        transactions.back().states.front().state.changeFrameRateStrategy = changeFrameRateStrategy;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setFrameRateCategory(uint32_t id, int8_t frameRateCategory) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eFrameRateCategoryChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.frameRateCategory = frameRateCategory;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setFrameRateSelectionStrategy(uint32_t id, int8_t strategy) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what =
-                layer_state_t::eFrameRateSelectionStrategyChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.frameRateSelectionStrategy = strategy;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setDefaultFrameRateCompatibility(uint32_t id, int8_t defaultFrameRateCompatibility) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what =
-                layer_state_t::eDefaultFrameRateCompatibilityChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.defaultFrameRateCompatibility =
-                defaultFrameRateCompatibility;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setRoundedCorners(uint32_t id, float radius) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eCornerRadiusChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.cornerRadius = radius;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setBuffer(uint32_t id, std::shared_ptr<renderengine::ExternalTexture> texture) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eBufferChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().externalTexture = texture;
-        transactions.back().states.front().state.bufferData =
-                std::make_shared<fake::BufferData>(texture->getId(), texture->getWidth(),
-                                                   texture->getHeight(), texture->getPixelFormat(),
-                                                   texture->getUsage());
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setBuffer(uint32_t id) {
-        static uint64_t sBufferId = 1;
-        setBuffer(id,
-                  std::make_shared<renderengine::mock::
-                                           FakeExternalTexture>(1U /*width*/, 1U /*height*/,
-                                                                sBufferId++,
-                                                                HAL_PIXEL_FORMAT_RGBA_8888,
-                                                                GRALLOC_USAGE_PROTECTED /*usage*/));
-    }
-
-    void setBufferCrop(uint32_t id, const Rect& bufferCrop) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eBufferCropChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.bufferCrop = bufferCrop;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setDamageRegion(uint32_t id, const Region& damageRegion) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eSurfaceDamageRegionChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.surfaceDamageRegion = damageRegion;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setDataspace(uint32_t id, ui::Dataspace dataspace) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eDataspaceChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.dataspace = dataspace;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setMatrix(uint32_t id, float dsdx, float dtdx, float dtdy, float dsdy) {
-        layer_state_t::matrix22_t matrix{dsdx, dtdx, dtdy, dsdy};
-
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eMatrixChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.matrix = matrix;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setShadowRadius(uint32_t id, float shadowRadius) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eShadowRadiusChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.shadowRadius = shadowRadius;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setTrustedOverlay(uint32_t id, gui::TrustedOverlay trustedOverlay) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eTrustedOverlayChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.trustedOverlay = trustedOverlay;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
-    void setDropInputMode(uint32_t id, gui::DropInputMode dropInputMode) {
-        std::vector<TransactionState> transactions;
-        transactions.emplace_back();
-        transactions.back().states.push_back({});
-
-        transactions.back().states.front().state.what = layer_state_t::eDropInputModeChanged;
-        transactions.back().states.front().layerId = id;
-        transactions.back().states.front().state.dropInputMode = dropInputMode;
-        mLifecycleManager.applyTransactions(transactions);
-    }
-
     LayerLifecycleManager mLifecycleManager;
 };
 
@@ -523,21 +100,6 @@
 protected:
     LayerSnapshotTestBase() : LayerHierarchyTestBase() {}
 
-    void createRootLayer(uint32_t id) override {
-        LayerHierarchyTestBase::createRootLayer(id);
-        setColor(id);
-    }
-
-    void createLayer(uint32_t id, uint32_t parentId) override {
-        LayerHierarchyTestBase::createLayer(id, parentId);
-        setColor(parentId);
-    }
-
-    void mirrorLayer(uint32_t id, uint32_t parent, uint32_t layerToMirror) override {
-        LayerHierarchyTestBase::mirrorLayer(id, parent, layerToMirror);
-        setColor(id);
-    }
-
     void update(LayerSnapshotBuilder& snapshotBuilder) {
         mHierarchyBuilder.update(mLifecycleManager);
         LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
index a61fa1e..52bb07a 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
@@ -38,6 +38,7 @@
 namespace android::scheduler {
 
 using android::mock::createDisplayMode;
+using android::mock::createVrrDisplayMode;
 using namespace com::android::graphics::surfaceflinger;
 
 class LayerHistoryIntegrationTest : public surfaceflinger::frontend::LayerSnapshotTestBase {
@@ -53,6 +54,8 @@
     static constexpr Fps HI_FPS = 90_Hz;
     static constexpr auto HI_FPS_PERIOD = HI_FPS.getPeriodNsecs();
 
+    static constexpr auto kVrrModeId = DisplayModeId(2);
+
     LayerHistoryIntegrationTest() : LayerSnapshotTestBase() {
         mFlinger.resetScheduler(mScheduler);
         mLifecycleManager = {};
@@ -71,6 +74,13 @@
         updateLayerSnapshotsAndLayerHistory(time);
     }
 
+    void setFrontBufferWithPresentTime(sp<Layer>& layer, nsecs_t time) {
+        uint32_t sequence = static_cast<uint32_t>(layer->sequence);
+        setFrontBuffer(sequence);
+        layer->setDesiredPresentTime(time, false /*autotimestamp*/);
+        updateLayerSnapshotsAndLayerHistory(time);
+    }
+
     LayerHistory& history() { return mScheduler->mutableLayerHistory(); }
     const LayerHistory& history() const { return mScheduler->mutableLayerHistory(); }
 
@@ -135,6 +145,21 @@
         return layer;
     }
 
+    auto createLegacyAndFrontedEndLayerWithUid(uint32_t sequence, gui::Uid uid) {
+        std::string layerName = "test layer:" + std::to_string(sequence);
+        auto args = LayerCreationArgs{mFlinger.flinger(),
+                                      nullptr,
+                                      layerName,
+                                      0,
+                                      {},
+                                      std::make_optional<uint32_t>(sequence)};
+        args.ownerUid = uid.val();
+        const auto layer = sp<Layer>::make(args);
+        mFlinger.injectLegacyLayer(layer);
+        createRootLayerWithUid(sequence, uid);
+        return layer;
+    }
+
     auto destroyLayer(sp<Layer>& layer) {
         uint32_t sequence = static_cast<uint32_t>(layer->sequence);
         mFlinger.releaseLegacyLayer(sequence);
@@ -157,12 +182,13 @@
         ASSERT_EQ(desiredRefreshRate, summary[0].desiredRefreshRate);
     }
 
-    std::shared_ptr<RefreshRateSelector> mSelector =
-            std::make_shared<RefreshRateSelector>(makeModes(createDisplayMode(DisplayModeId(0),
-                                                                              LO_FPS),
-                                                            createDisplayMode(DisplayModeId(1),
-                                                                              HI_FPS)),
-                                                  DisplayModeId(0));
+    std::shared_ptr<RefreshRateSelector> mSelector = std::make_shared<RefreshRateSelector>(
+            makeModes(createDisplayMode(DisplayModeId(0), LO_FPS),
+                      createDisplayMode(DisplayModeId(1), HI_FPS),
+                      createVrrDisplayMode(kVrrModeId, HI_FPS,
+                                           hal::VrrConfig{.minFrameIntervalNs =
+                                                                  HI_FPS.getPeriodNsecs()})),
+            DisplayModeId(0));
 
     mock::SchedulerCallback mSchedulerCallback;
     TestableSurfaceFlinger mFlinger;
@@ -214,6 +240,146 @@
     EXPECT_EQ(1u, activeLayerCount());
 }
 
+TEST_F(LayerHistoryIntegrationTest, oneLayer) {
+    createLegacyAndFrontedEndLayer(1);
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    // No layers returned if no layers are active.
+    EXPECT_TRUE(summarizeLayerHistory(time).empty());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    // Max returned if active layers have insufficient history.
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE - 1; i++) {
+        setBuffer(1);
+        updateLayerSnapshotsAndLayerHistory(time);
+        ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+        EXPECT_EQ(1u, activeLayerCount());
+        time += LO_FPS_PERIOD;
+    }
+
+    // Max is returned since we have enough history but there is no timestamp votes.
+    for (size_t i = 0; i < 10; i++) {
+        setBuffer(1);
+        updateLayerSnapshotsAndLayerHistory(time);
+        ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+        EXPECT_EQ(1u, activeLayerCount());
+        time += LO_FPS_PERIOD;
+    }
+}
+
+TEST_F(LayerHistoryIntegrationTest, gameFrameRateOverrideMapping) {
+    SET_FLAG_FOR_TEST(flags::game_default_frame_rate, true);
+
+    history().updateGameDefaultFrameRateOverride(FrameRateOverride({0, 60.0f}));
+
+    auto overridePair = history().getGameFrameRateOverride(0);
+    EXPECT_EQ(0_Hz, overridePair.first);
+    EXPECT_EQ(60_Hz, overridePair.second);
+
+    history().updateGameModeFrameRateOverride(FrameRateOverride({0, 40.0f}));
+    history().updateGameModeFrameRateOverride(FrameRateOverride({1, 120.0f}));
+
+    overridePair = history().getGameFrameRateOverride(0);
+    EXPECT_EQ(40_Hz, overridePair.first);
+    EXPECT_EQ(60_Hz, overridePair.second);
+
+    overridePair = history().getGameFrameRateOverride(1);
+    EXPECT_EQ(120_Hz, overridePair.first);
+    EXPECT_EQ(0_Hz, overridePair.second);
+
+    history().updateGameDefaultFrameRateOverride(FrameRateOverride({0, 0.0f}));
+    history().updateGameModeFrameRateOverride(FrameRateOverride({1, 0.0f}));
+
+    overridePair = history().getGameFrameRateOverride(0);
+    EXPECT_EQ(40_Hz, overridePair.first);
+    EXPECT_EQ(0_Hz, overridePair.second);
+
+    overridePair = history().getGameFrameRateOverride(1);
+    EXPECT_EQ(0_Hz, overridePair.first);
+    EXPECT_EQ(0_Hz, overridePair.second);
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerGameFrameRateOverride) {
+    SET_FLAG_FOR_TEST(flags::game_default_frame_rate, true);
+
+    const uid_t uid = 0;
+    const Fps gameDefaultFrameRate = Fps::fromValue(30.0f);
+    const Fps gameModeFrameRate = Fps::fromValue(60.0f);
+
+    auto layer = createLegacyAndFrontedEndLayerWithUid(1, gui::Uid(uid));
+    showLayer(1);
+
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    // update game default frame rate override
+    history().updateGameDefaultFrameRateOverride(
+            FrameRateOverride({uid, gameDefaultFrameRate.getValue()}));
+
+    LayerHistory::Summary summary;
+    scheduler::LayerProps layerProps = {
+            .visible = true,
+            .bounds = {0, 0, 100, 100},
+            .transform = {},
+            .setFrameRateVote = {},
+            .frameRateSelectionPriority = Layer::PRIORITY_UNSET,
+            .isSmallDirty = false,
+            .isFrontBuffered = false,
+    };
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += gameDefaultFrameRate.getPeriodNsecs();
+        summary = summarizeLayerHistory(time);
+    }
+
+    ASSERT_EQ(1u, summary.size());
+    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
+    ASSERT_EQ(30.0_Hz, summary[0].desiredRefreshRate);
+
+    // test against setFrameRate vote
+    setFrameRate(1,
+                 Layer::FrameRate(Fps::fromValue(120.0f), Layer::FrameRateCompatibility::Default));
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    const Fps setFrameRate = Fps::fromValue(120.0f);
+    layerProps.setFrameRateVote =
+            Layer::FrameRate(setFrameRate, Layer::FrameRateCompatibility::Default);
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += setFrameRate.getPeriodNsecs();
+        summary = summarizeLayerHistory(time);
+    }
+
+    ASSERT_EQ(1u, summary.size());
+    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
+    ASSERT_EQ(120.0_Hz, summary[0].desiredRefreshRate);
+
+    // update game mode frame rate override
+    history().updateGameModeFrameRateOverride(
+            FrameRateOverride({uid, gameModeFrameRate.getValue()}));
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += gameModeFrameRate.getPeriodNsecs();
+        summary = summarizeLayerHistory(time);
+    }
+
+    ASSERT_EQ(1u, summary.size());
+    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
+    ASSERT_EQ(60.0_Hz, summary[0].desiredRefreshRate);
+}
+
 TEST_F(LayerHistoryIntegrationTest, oneInvisibleLayer) {
     createLegacyAndFrontedEndLayer(1);
     nsecs_t time = systemTime();
@@ -238,6 +404,110 @@
     EXPECT_EQ(0u, activeLayerCount());
 }
 
+TEST_F(LayerHistoryIntegrationTest, explicitTimestamp) {
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += LO_FPS_PERIOD;
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(LO_FPS, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerNoVote) {
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::NoVote);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    ASSERT_TRUE(summarizeLayerHistory(time).empty());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+
+    // layer became inactive
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_TRUE(summarizeLayerHistory(time).empty());
+    EXPECT_EQ(0u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerMinVote) {
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Min);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+
+    // layer became inactive
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_TRUE(summarizeLayerHistory(time).empty());
+    EXPECT_EQ(0u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerMaxVote) {
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Max);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += LO_FPS_PERIOD;
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+
+    // layer became inactive
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_TRUE(summarizeLayerHistory(time).empty());
+    EXPECT_EQ(0u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+}
+
 TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitVote) {
     createLegacyAndFrontedEndLayer(1);
     setFrameRate(1, 73.4f, ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_DEFAULT,
@@ -273,6 +543,335 @@
     EXPECT_EQ(1, frequentLayerCount(time));
 }
 
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitExactVote2) {
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    setFrameRate(1, 73.4f, ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
+              summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+
+    // layer became infrequent, but the vote stays
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
+              summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitGte_vrr) {
+    // Set the test to be on a vrr mode.
+    SET_FLAG_FOR_TEST(flags::vrr_config, true);
+    mSelector->setActiveMode(kVrrModeId, HI_FPS);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (33_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_GTE,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+    setFrameRateCategory(1, 0);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitGte, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(33_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
+
+    // layer became inactive, but the vote stays
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitGte, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(33_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
+}
+
+// Test for MRR device with VRR features enabled.
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitGte_nonVrr) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+    // The vrr_config flag is explicitly not set false because this test for an MRR device
+    // should still work in a VRR-capable world.
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (33_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_GTE,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+    setFrameRateCategory(1, 0);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
+
+    // layer became infrequent, but the vote stays
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitVoteWithCategory_vrrFeatureOff) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, false);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (73.4_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_DEFAULT,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+    setFrameRateCategory(1, ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH);
+
+    // Set default to Min so it is obvious that the vote reset triggered.
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Min);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    // There is only 1 LayerRequirement due to the disabled flag frame_rate_category_mrr.
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
+}
+
+// This test case should be the same as oneLayerNoVote except instead of layer vote is NoVote,
+// the category is NoPreference.
+TEST_F(LayerHistoryIntegrationTest, oneLayerCategoryNoPreference) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (0_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_DEFAULT,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+    setFrameRateCategory(1, ANATIVEWINDOW_FRAME_RATE_CATEGORY_NO_PREFERENCE);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    EXPECT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+
+    // layer became infrequent
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    EXPECT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitVoteWithCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (73.4_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_DEFAULT,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+    setFrameRateCategory(1, ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    // There are 2 LayerRequirement's due to the frame rate category.
+    ASSERT_EQ(2u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+    // First LayerRequirement is the layer's category specification
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitCategory, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
+
+    // Second LayerRequirement is the frame rate specification
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summarizeLayerHistory(time)[1].vote);
+    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[1].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[1].frameRateCategory);
+
+    // layer became infrequent, but the vote stays
+    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_EQ(2u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitCategory, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
+}
+
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitVoteWithCategoryNotVisibleDoesNotVote) {
+    SET_FLAG_FOR_TEST(flags::misc1, true);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    hideLayer(1);
+    setFrameRate(1, (12.34_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_DEFAULT,
+                 ANATIVEWINDOW_CHANGE_FRAME_RATE_ONLY_IF_SEAMLESS);
+    setFrameRateCategory(1, ANATIVEWINDOW_FRAME_RATE_CATEGORY_HIGH);
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+
+    nsecs_t time = systemTime();
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setBufferWithPresentTime(layer, time);
+        time += HI_FPS_PERIOD;
+    }
+
+    // Layer is not visible, so the layer is moved to inactive, infrequent, and it will not have
+    // votes to consider for refresh rate selection.
+    ASSERT_EQ(0u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(0u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, invisibleExplicitLayer) {
+    SET_FLAG_FOR_TEST(flags::misc1, false);
+
+    auto explicitVisiblelayer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (60_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE, 0);
+
+    auto explicitInvisiblelayer = createLegacyAndFrontedEndLayer(2);
+    hideLayer(2);
+    setFrameRate(2, (90_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE, 0);
+
+    nsecs_t time = systemTime();
+
+    // Post a buffer to the layers to make them active
+    setBuffer(1);
+    setBuffer(2);
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    EXPECT_EQ(2u, layerCount());
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
+              summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(60_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(2u, activeLayerCount());
+    EXPECT_EQ(2, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, invisibleExplicitLayerDoesNotVote) {
+    SET_FLAG_FOR_TEST(flags::misc1, true);
+
+    auto explicitVisiblelayer = createLegacyAndFrontedEndLayer(1);
+    showLayer(1);
+    setFrameRate(1, (60_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE, 0);
+
+    auto explicitInvisiblelayer = createLegacyAndFrontedEndLayer(2);
+    hideLayer(2);
+    setFrameRate(2, (90_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE, 0);
+
+    nsecs_t time = systemTime();
+
+    // Post a buffer to the layers to make them active
+    setBuffer(1);
+    setBuffer(2);
+    updateLayerSnapshotsAndLayerHistory(time);
+
+    EXPECT_EQ(2u, layerCount());
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
+              summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(60_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(1, frequentLayerCount(time));
+}
+
+TEST_F(LayerHistoryIntegrationTest, frontBufferedLayerVotesMax) {
+    SET_FLAG_FOR_TEST(flags::vrr_config, true);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    setFrontBuffer(1);
+    showLayer(1);
+
+    nsecs_t time = systemTime();
+
+    EXPECT_EQ(1u, layerCount());
+    EXPECT_EQ(0u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+    EXPECT_EQ(0, animatingLayerCount(time));
+
+    // layer is active but infrequent.
+    for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
+        setFrontBufferWithPresentTime(layer, time);
+        time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
+    }
+
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+    EXPECT_EQ(0, animatingLayerCount(time));
+
+    // Layer still active due to front buffering, but it's infrequent.
+    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
+    ASSERT_EQ(1u, summarizeLayerHistory(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
+    EXPECT_EQ(1u, activeLayerCount());
+    EXPECT_EQ(0, frequentLayerCount(time));
+    EXPECT_EQ(0, animatingLayerCount(time));
+}
+
 TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitCategory) {
     SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
 
@@ -805,7 +1404,15 @@
 
     // layer is active but infrequent.
     for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        auto props = layer->getLayerProps();
+        scheduler::LayerProps props = {
+                .visible = false,
+                .bounds = {0, 0, 100, 100},
+                .transform = {},
+                .setFrameRateVote = {},
+                .frameRateSelectionPriority = Layer::PRIORITY_UNSET,
+                .isSmallDirty = false,
+                .isFrontBuffered = false,
+        };
         if (i % 3 == 0) {
             props.isSmallDirty = false;
         } else {
@@ -838,8 +1445,15 @@
 
     // uiLayer is updating small dirty.
     for (size_t i = 0; i < PRESENT_TIME_HISTORY_SIZE + FREQUENT_LAYER_WINDOW_SIZE + 1; i++) {
-        auto props = uiLayer->getLayerProps();
-        props.isSmallDirty = true;
+        scheduler::LayerProps props = {
+                .visible = false,
+                .bounds = {0, 0, 100, 100},
+                .transform = {},
+                .setFrameRateVote = {},
+                .frameRateSelectionPriority = Layer::PRIORITY_UNSET,
+                .isSmallDirty = true,
+                .isFrontBuffered = false,
+        };
         setBuffer(1);
         uiLayer->setDesiredPresentTime(0, false /*autotimestamp*/);
         updateLayerSnapshotsAndLayerHistory(time);
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
deleted file mode 100644
index 088d0d2..0000000
--- a/services/surfaceflinger/tests/unittests/LayerHistoryTest.cpp
+++ /dev/null
@@ -1,1573 +0,0 @@
-/*
- * Copyright 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wextra"
-
-#undef LOG_TAG
-#define LOG_TAG "LayerHistoryTest"
-
-#include <Layer.h>
-#include <com_android_graphics_surfaceflinger_flags.h>
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <log/log.h>
-
-#include <common/test/FlagUtils.h>
-#include "FpsOps.h"
-#include "Scheduler/LayerHistory.h"
-#include "Scheduler/LayerInfo.h"
-#include "TestableScheduler.h"
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockDisplayMode.h"
-#include "mock/MockLayer.h"
-#include "mock/MockSchedulerCallback.h"
-
-using testing::_;
-using testing::Return;
-using testing::ReturnRef;
-
-namespace android::scheduler {
-
-using MockLayer = android::mock::MockLayer;
-
-using android::mock::createDisplayMode;
-using android::mock::createVrrDisplayMode;
-
-// WARNING: LEGACY TESTS FOR LEGACY FRONT END
-// Update LayerHistoryIntegrationTest instead
-class LayerHistoryTest : public testing::Test {
-protected:
-    static constexpr auto PRESENT_TIME_HISTORY_SIZE = LayerInfo::HISTORY_SIZE;
-    static constexpr auto MAX_FREQUENT_LAYER_PERIOD_NS = LayerInfo::kMaxPeriodForFrequentLayerNs;
-    static constexpr auto FREQUENT_LAYER_WINDOW_SIZE = LayerInfo::kFrequentLayerWindowSize;
-    static constexpr auto PRESENT_TIME_HISTORY_DURATION = LayerInfo::HISTORY_DURATION;
-
-    static constexpr Fps LO_FPS = 30_Hz;
-    static constexpr auto LO_FPS_PERIOD = LO_FPS.getPeriodNsecs();
-
-    static constexpr Fps HI_FPS = 90_Hz;
-    static constexpr auto HI_FPS_PERIOD = HI_FPS.getPeriodNsecs();
-
-    LayerHistoryTest() { mFlinger.resetScheduler(mScheduler); }
-
-    LayerHistory& history() { return mScheduler->mutableLayerHistory(); }
-    const LayerHistory& history() const { return mScheduler->mutableLayerHistory(); }
-
-    LayerHistory::Summary summarizeLayerHistory(nsecs_t now) {
-        // LayerHistory::summarize makes no guarantee of the order of the elements in the summary
-        // however, for testing only, a stable order is required, therefore we sort the list here.
-        // Any tests requiring ordered results must create layers with names.
-        auto summary = history().summarize(*mScheduler->refreshRateSelector(), now);
-        std::sort(summary.begin(), summary.end(),
-                  [](const RefreshRateSelector::LayerRequirement& lhs,
-                     const RefreshRateSelector::LayerRequirement& rhs) -> bool {
-                      return lhs.name < rhs.name;
-                  });
-        return summary;
-    }
-
-    size_t layerCount() const { return mScheduler->layerHistorySize(); }
-    size_t activeLayerCount() const NO_THREAD_SAFETY_ANALYSIS {
-        return history().mActiveLayerInfos.size();
-    }
-
-    auto frequentLayerCount(nsecs_t now) const NO_THREAD_SAFETY_ANALYSIS {
-        const auto& infos = history().mActiveLayerInfos;
-        return std::count_if(infos.begin(), infos.end(), [now](const auto& pair) {
-            return pair.second.second->isFrequent(now).isFrequent;
-        });
-    }
-
-    auto animatingLayerCount(nsecs_t now) const NO_THREAD_SAFETY_ANALYSIS {
-        const auto& infos = history().mActiveLayerInfos;
-        return std::count_if(infos.begin(), infos.end(), [now](const auto& pair) {
-            return pair.second.second->isAnimating(now);
-        });
-    }
-
-    auto clearLayerHistoryCount(nsecs_t now) const NO_THREAD_SAFETY_ANALYSIS {
-        const auto& infos = history().mActiveLayerInfos;
-        return std::count_if(infos.begin(), infos.end(), [now](const auto& pair) {
-            return pair.second.second->isFrequent(now).clearHistory;
-        });
-    }
-
-    void setDefaultLayerVote(Layer* layer,
-                             LayerHistory::LayerVoteType vote) NO_THREAD_SAFETY_ANALYSIS {
-        auto [found, layerPair] = history().findLayer(layer->getSequence());
-        if (found != LayerHistory::LayerStatus::NotFound) {
-            layerPair->second->setDefaultLayerVote(vote);
-        }
-    }
-
-    auto createLayer() { return sp<MockLayer>::make(mFlinger.flinger()); }
-    auto createLayer(std::string name) {
-        return sp<MockLayer>::make(mFlinger.flinger(), std::move(name));
-    }
-    auto createLayer(std::string name, uint32_t uid) {
-        return sp<MockLayer>::make(mFlinger.flinger(), std::move(name), std::move(uid));
-    }
-
-    void recordFramesAndExpect(const sp<MockLayer>& layer, nsecs_t& time, Fps frameRate,
-                               Fps desiredRefreshRate, int numFrames) {
-        LayerHistory::Summary summary;
-        for (int i = 0; i < numFrames; i++) {
-            history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                             LayerHistory::LayerUpdateType::Buffer);
-            time += frameRate.getPeriodNsecs();
-
-            summary = summarizeLayerHistory(time);
-        }
-
-        ASSERT_EQ(1, summary.size());
-        ASSERT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-        ASSERT_EQ(desiredRefreshRate, summary[0].desiredRefreshRate);
-    }
-
-    static constexpr auto kVrrModeId = DisplayModeId(2);
-    std::shared_ptr<RefreshRateSelector> mSelector = std::make_shared<RefreshRateSelector>(
-            makeModes(createDisplayMode(DisplayModeId(0), LO_FPS),
-                      createDisplayMode(DisplayModeId(1), HI_FPS),
-                      createVrrDisplayMode(kVrrModeId, HI_FPS,
-                                           hal::VrrConfig{.minFrameIntervalNs =
-                                                                  HI_FPS.getPeriodNsecs()})),
-            DisplayModeId(0));
-
-    mock::SchedulerCallback mSchedulerCallback;
-    TestableSurfaceFlinger mFlinger;
-    TestableScheduler* mScheduler = new TestableScheduler(mSelector, mFlinger, mSchedulerCallback);
-};
-
-namespace {
-
-using namespace com::android::graphics::surfaceflinger;
-
-TEST_F(LayerHistoryTest, singleLayerNoVoteDefaultCompatibility) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-    EXPECT_CALL(*layer, getDefaultFrameRateCompatibility())
-            .WillOnce(Return(FrameRateCompatibility::NoVote));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-
-    // No layers returned if no layers are active.
-    EXPECT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-
-    history().record(layer->getSequence(), layer->getLayerProps(), 0, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    history().setDefaultFrameRateCompatibility(layer->getSequence(),
-
-                                               layer->getDefaultFrameRateCompatibility(),
-                                               true /* contentDetectionEnabled */);
-
-    EXPECT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(1, activeLayerCount());
-}
-
-TEST_F(LayerHistoryTest, singleLayerMinVoteDefaultCompatibility) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-    EXPECT_CALL(*layer, getDefaultFrameRateCompatibility())
-            .WillOnce(Return(FrameRateCompatibility::Min));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-
-    EXPECT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-
-    history().record(layer->getSequence(), layer->getLayerProps(), 0, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    history().setDefaultFrameRateCompatibility(layer->getSequence(),
-                                               layer->getDefaultFrameRateCompatibility(),
-                                               true /* contentDetectionEnabled */);
-
-    auto summary = summarizeLayerHistory(time);
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-}
-
-TEST_F(LayerHistoryTest, oneLayer) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    // history().registerLayer(layer, LayerHistory::LayerVoteType::Max);
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-
-    // No layers returned if no layers are active.
-    EXPECT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-
-    // Max returned if active layers have insufficient history.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE - 1; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), 0, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        ASSERT_EQ(1, summarizeLayerHistory(time).size());
-        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-        EXPECT_EQ(1, activeLayerCount());
-        time += LO_FPS_PERIOD;
-    }
-
-    // Max is returned since we have enough history but there is no timestamp votes.
-    for (int i = 0; i < 10; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), 0, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        ASSERT_EQ(1, summarizeLayerHistory(time).size());
-        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-        EXPECT_EQ(1, activeLayerCount());
-        time += LO_FPS_PERIOD;
-    }
-}
-
-TEST_F(LayerHistoryTest, gameFrameRateOverrideMapping) {
-    SET_FLAG_FOR_TEST(flags::game_default_frame_rate, true);
-
-    history().updateGameDefaultFrameRateOverride(FrameRateOverride({0, 60.0f}));
-
-    auto overridePair = history().getGameFrameRateOverride(0);
-    EXPECT_EQ(0_Hz, overridePair.first);
-    EXPECT_EQ(60_Hz, overridePair.second);
-
-    history().updateGameModeFrameRateOverride(FrameRateOverride({0, 40.0f}));
-    history().updateGameModeFrameRateOverride(FrameRateOverride({1, 120.0f}));
-
-    overridePair = history().getGameFrameRateOverride(0);
-    EXPECT_EQ(40_Hz, overridePair.first);
-    EXPECT_EQ(60_Hz, overridePair.second);
-
-    overridePair = history().getGameFrameRateOverride(1);
-    EXPECT_EQ(120_Hz, overridePair.first);
-    EXPECT_EQ(0_Hz, overridePair.second);
-
-    history().updateGameDefaultFrameRateOverride(FrameRateOverride({0, 0.0f}));
-    history().updateGameModeFrameRateOverride(FrameRateOverride({1, 0.0f}));
-
-    overridePair = history().getGameFrameRateOverride(0);
-    EXPECT_EQ(40_Hz, overridePair.first);
-    EXPECT_EQ(0_Hz, overridePair.second);
-
-    overridePair = history().getGameFrameRateOverride(1);
-    EXPECT_EQ(0_Hz, overridePair.first);
-    EXPECT_EQ(0_Hz, overridePair.second);
-}
-
-TEST_F(LayerHistoryTest, oneLayerGameFrameRateOverride) {
-    SET_FLAG_FOR_TEST(flags::game_default_frame_rate, true);
-
-    const uid_t uid = 0;
-    const Fps gameDefaultFrameRate = Fps::fromValue(30.0f);
-    const Fps gameModeFrameRate = Fps::fromValue(60.0f);
-    const auto layer = createLayer("GameFrameRateLayer", uid);
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-    EXPECT_CALL(*layer, getOwnerUid()).WillRepeatedly(Return(uid));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    // update game default frame rate override
-    history().updateGameDefaultFrameRateOverride(
-            FrameRateOverride({uid, gameDefaultFrameRate.getValue()}));
-
-    nsecs_t time = systemTime();
-    LayerHistory::Summary summary;
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += gameDefaultFrameRate.getPeriodNsecs();
-
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
-    ASSERT_EQ(30.0_Hz, summary[0].desiredRefreshRate);
-
-    // test against setFrameRate vote
-    const Fps setFrameRate = Fps::fromValue(120.0f);
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(setFrameRate, Layer::FrameRateCompatibility::Default)));
-
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += setFrameRate.getPeriodNsecs();
-
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
-    ASSERT_EQ(120.0_Hz, summary[0].desiredRefreshRate);
-
-    // update game mode frame rate override
-    history().updateGameModeFrameRateOverride(
-            FrameRateOverride({uid, gameModeFrameRate.getValue()}));
-
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += gameModeFrameRate.getPeriodNsecs();
-
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
-    ASSERT_EQ(60.0_Hz, summary[0].desiredRefreshRate);
-}
-
-TEST_F(LayerHistoryTest, oneInvisibleLayer) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-
-    history().record(layer->getSequence(), layer->getLayerProps(), 0, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    auto summary = summarizeLayerHistory(time);
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    // Layer is still considered inactive so we expect to get Min
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(false));
-    history().record(layer->getSequence(), layer->getLayerProps(), 0, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-
-    summary = summarizeLayerHistory(time);
-    EXPECT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-}
-
-TEST_F(LayerHistoryTest, explicitTimestamp) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += LO_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(LO_FPS, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerNoVote) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::NoVote);
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer became inactive
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerMinVote) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Min);
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer became inactive
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerMaxVote) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Max);
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += LO_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer became inactive
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_TRUE(summarizeLayerHistory(time).empty());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitVote) {
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(73.4_Hz, Layer::FrameRateCompatibility::Default)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer became infrequent, but the vote stays
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitExactVote) {
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(
-                    Layer::FrameRate(73.4_Hz, Layer::FrameRateCompatibility::ExactOrMultiple)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
-              summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer became infrequent, but the vote stays
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
-              summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitGte_vrr) {
-    // Set the test to be on a vrr mode.
-    SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    mSelector->setActiveMode(kVrrModeId, HI_FPS);
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(Layer::FrameRate(33_Hz, Layer::FrameRateCompatibility::Gte,
-                                                    Seamlessness::OnlySeamless,
-                                                    FrameRateCategory::Default)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitGte, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(33_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
-
-    // layer became inactive, but the vote stays
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitGte, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(33_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
-}
-
-// Test for MRR device with VRR features enabled.
-TEST_F(LayerHistoryTest, oneLayerExplicitGte_nonVrr) {
-    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
-    // The vrr_config flag is explicitly not set false because this test for an MRR device
-    // should still work in a VRR-capable world.
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(Layer::FrameRate(33_Hz, Layer::FrameRateCompatibility::Gte,
-                                                    Seamlessness::OnlySeamless,
-                                                    FrameRateCategory::Default)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
-
-    // layer became infrequent, but the vote stays
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitVoteWithCategory_vrrFeatureOff) {
-    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, false);
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(73.4_Hz, Layer::FrameRateCompatibility::Default,
-                                            Seamlessness::OnlySeamless, FrameRateCategory::High)));
-
-    // Set default to Min so it is obvious that the vote reset triggered.
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Min);
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    // There is only 1 LayerRequirement due to the disabled flag frame_rate_category_mrr.
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[0].frameRateCategory);
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitCategory) {
-    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(0_Hz, Layer::FrameRateCompatibility::Default,
-                                            Seamlessness::OnlySeamless, FrameRateCategory::High)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    // First LayerRequirement is the frame rate specification
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitCategory, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
-
-    // layer became infrequent, but the vote stays
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitCategory, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
-}
-
-// This test case should be the same as oneLayerNoVote except instead of layer vote is NoVote,
-// the category is NoPreference.
-TEST_F(LayerHistoryTest, oneLayerCategoryNoPreference) {
-    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(Layer::FrameRate(0_Hz, Layer::FrameRateCompatibility::Default,
-                                                    Seamlessness::OnlySeamless,
-                                                    FrameRateCategory::NoPreference)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    EXPECT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer became infrequent
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    EXPECT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitVoteWithCategory) {
-    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, true);
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(73.4_Hz, Layer::FrameRateCompatibility::Default,
-                                            Seamlessness::OnlySeamless, FrameRateCategory::High)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    // There are 2 LayerRequirement's due to the frame rate category.
-    ASSERT_EQ(2, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    // First LayerRequirement is the layer's category specification
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitCategory, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
-
-    // Second LayerRequirement is the frame rate specification
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summarizeLayerHistory(time)[1].vote);
-    EXPECT_EQ(73.4_Hz, summarizeLayerHistory(time)[1].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[1].frameRateCategory);
-
-    // layer became infrequent, but the vote stays
-    setDefaultLayerVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(2, summarizeLayerHistory(time).size());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitCategory, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(0_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
-}
-
-TEST_F(LayerHistoryTest, oneLayerExplicitVoteWithCategoryNotVisibleDoesNotVote) {
-    SET_FLAG_FOR_TEST(flags::misc1, true);
-
-    auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(false));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(12.34_Hz, Layer::FrameRateCompatibility::Default,
-                                            Seamlessness::OnlySeamless, FrameRateCategory::High)));
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-
-    nsecs_t time = systemTime();
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-    }
-
-    // Layer is not visible, so the layer is moved to inactive, infrequent, and it will not have
-    // votes to consider for refresh rate selection.
-    ASSERT_EQ(0, summarizeLayerHistory(time).size());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, multipleLayers) {
-    auto layer1 = createLayer("A");
-    auto layer2 = createLayer("B");
-    auto layer3 = createLayer("C");
-
-    EXPECT_CALL(*layer1, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer1, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    EXPECT_CALL(*layer2, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer2, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    EXPECT_CALL(*layer3, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer3, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(3, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-
-    LayerHistory::Summary summary;
-
-    // layer1 is active but infrequent.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer1->getSequence(), layer1->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summary[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-
-    // layer2 is frequent and has high refresh rate.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer2->getSequence(), layer2->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    // layer1 is still active but infrequent.
-    history().record(layer1->getSequence(), layer1->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-
-    ASSERT_EQ(2, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summary[0].vote);
-    ASSERT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[1].vote);
-    EXPECT_EQ(HI_FPS, summarizeLayerHistory(time)[1].desiredRefreshRate);
-
-    EXPECT_EQ(2, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer1 is no longer active.
-    // layer2 is frequent and has low refresh rate.
-    for (int i = 0; i < 2 * PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer2->getSequence(), layer2->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += LO_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(LO_FPS, summary[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer2 still has low refresh rate.
-    // layer3 has high refresh rate but not enough history.
-    constexpr int RATIO = LO_FPS_PERIOD / HI_FPS_PERIOD;
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE - 1; i++) {
-        if (i % RATIO == 0) {
-            history().record(layer2->getSequence(), layer2->getLayerProps(), time, time,
-                             LayerHistory::LayerUpdateType::Buffer);
-        }
-
-        history().record(layer3->getSequence(), layer3->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(2, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(LO_FPS, summary[0].desiredRefreshRate);
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summary[1].vote);
-    EXPECT_EQ(2, activeLayerCount());
-    EXPECT_EQ(2, frequentLayerCount(time));
-
-    // layer3 becomes recently active.
-    history().record(layer3->getSequence(), layer3->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    summary = summarizeLayerHistory(time);
-    ASSERT_EQ(2, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(LO_FPS, summary[0].desiredRefreshRate);
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[1].vote);
-    EXPECT_EQ(HI_FPS, summary[1].desiredRefreshRate);
-    EXPECT_EQ(2, activeLayerCount());
-    EXPECT_EQ(2, frequentLayerCount(time));
-
-    // layer1 expires.
-    layer1.clear();
-    summary = summarizeLayerHistory(time);
-    ASSERT_EQ(2, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(LO_FPS, summary[0].desiredRefreshRate);
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[1].vote);
-    EXPECT_EQ(HI_FPS, summary[1].desiredRefreshRate);
-    EXPECT_EQ(2, layerCount());
-    EXPECT_EQ(2, activeLayerCount());
-    EXPECT_EQ(2, frequentLayerCount(time));
-
-    // layer2 still has low refresh rate.
-    // layer3 becomes inactive.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer2->getSequence(), layer2->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += LO_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(LO_FPS, summary[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer2 expires.
-    layer2.clear();
-    summary = summarizeLayerHistory(time);
-    EXPECT_TRUE(summary.empty());
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-
-    // layer3 becomes active and has high refresh rate.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE + FREQUENT_LAYER_WINDOW_SIZE + 1; i++) {
-        history().record(layer3->getSequence(), layer3->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_EQ(HI_FPS, summary[0].desiredRefreshRate);
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-
-    // layer3 expires.
-    layer3.clear();
-    summary = summarizeLayerHistory(time);
-    EXPECT_TRUE(summary.empty());
-    EXPECT_EQ(0, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, inactiveLayers) {
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    // the very first updates makes the layer frequent
-    for (int i = 0; i < FREQUENT_LAYER_WINDOW_SIZE - 1; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-
-        EXPECT_EQ(1, layerCount());
-        ASSERT_EQ(1, summarizeLayerHistory(time).size());
-        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-        EXPECT_EQ(1, activeLayerCount());
-        EXPECT_EQ(1, frequentLayerCount(time));
-    }
-
-    // the next update with the MAX_FREQUENT_LAYER_PERIOD_NS will get us to infrequent
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-
-    EXPECT_EQ(1, layerCount());
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-
-    // advance the time for the previous frame to be inactive
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-
-    // Now even if we post a quick few frame we should stay infrequent
-    for (int i = 0; i < FREQUENT_LAYER_WINDOW_SIZE - 1; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-
-        EXPECT_EQ(1, layerCount());
-        ASSERT_EQ(1, summarizeLayerHistory(time).size());
-        EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-        EXPECT_EQ(1, activeLayerCount());
-        EXPECT_EQ(0, frequentLayerCount(time));
-    }
-
-    // More quick frames will get us to frequent again
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    time += HI_FPS_PERIOD;
-
-    EXPECT_EQ(1, layerCount());
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, invisibleExplicitLayer) {
-    SET_FLAG_FOR_TEST(flags::misc1, false);
-
-    auto explicitVisiblelayer = createLayer();
-    auto explicitInvisiblelayer = createLayer();
-
-    EXPECT_CALL(*explicitVisiblelayer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*explicitVisiblelayer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(
-                    Layer::FrameRate(60_Hz, Layer::FrameRateCompatibility::ExactOrMultiple)));
-
-    EXPECT_CALL(*explicitInvisiblelayer, isVisible()).WillRepeatedly(Return(false));
-    EXPECT_CALL(*explicitInvisiblelayer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(
-                    Layer::FrameRate(90_Hz, Layer::FrameRateCompatibility::ExactOrMultiple)));
-
-    nsecs_t time = systemTime();
-
-    // Post a buffer to the layers to make them active
-    history().record(explicitVisiblelayer->getSequence(), explicitVisiblelayer->getLayerProps(),
-                     time, time, LayerHistory::LayerUpdateType::Buffer);
-    history().record(explicitInvisiblelayer->getSequence(), explicitInvisiblelayer->getLayerProps(),
-                     time, time, LayerHistory::LayerUpdateType::Buffer);
-
-    EXPECT_EQ(2, layerCount());
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
-              summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(60_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(2, activeLayerCount());
-    EXPECT_EQ(2, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, invisibleExplicitLayerDoesNotVote) {
-    SET_FLAG_FOR_TEST(flags::misc1, true);
-
-    auto explicitVisiblelayer = createLayer();
-    auto explicitInvisiblelayer = createLayer();
-
-    EXPECT_CALL(*explicitVisiblelayer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*explicitVisiblelayer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(
-                    Layer::FrameRate(60_Hz, Layer::FrameRateCompatibility::ExactOrMultiple)));
-
-    EXPECT_CALL(*explicitInvisiblelayer, isVisible()).WillRepeatedly(Return(false));
-    EXPECT_CALL(*explicitInvisiblelayer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(
-                    Layer::FrameRate(90_Hz, Layer::FrameRateCompatibility::ExactOrMultiple)));
-
-    nsecs_t time = systemTime();
-
-    // Post a buffer to the layers to make them active
-    history().record(explicitVisiblelayer->getSequence(), explicitVisiblelayer->getLayerProps(),
-                     time, time, LayerHistory::LayerUpdateType::Buffer);
-    history().record(explicitInvisiblelayer->getSequence(), explicitInvisiblelayer->getLayerProps(),
-                     time, time, LayerHistory::LayerUpdateType::Buffer);
-
-    EXPECT_EQ(2, layerCount());
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
-              summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(60_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, infrequentAnimatingLayer) {
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // layer is active but infrequent.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // another update with the same cadence keep in infrequent
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // an update as animation will immediately vote for Max
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::AnimationTX);
-    time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(1, animatingLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, frontBufferedLayerVotesMax) {
-    SET_FLAG_FOR_TEST(flags::vrr_config, true);
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-    EXPECT_CALL(*layer, isFrontBuffered()).WillRepeatedly(Return(true));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // layer is active but infrequent.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-    }
-
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // Layer still active due to front buffering, but it's infrequent.
-    time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, frequentLayerBecomingInfrequentAndBack) {
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // Fill up the window with frequent updates
-    for (int i = 0; i < FREQUENT_LAYER_WINDOW_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += (60_Hz).getPeriodNsecs();
-
-        EXPECT_EQ(1, layerCount());
-        ASSERT_EQ(1, summarizeLayerHistory(time).size());
-        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-        EXPECT_EQ(1, activeLayerCount());
-        EXPECT_EQ(1, frequentLayerCount(time));
-    }
-
-    // posting a buffer after long inactivity should retain the layer as active
-    time += std::chrono::nanoseconds(3s).count();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(0, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(60_Hz, summarizeLayerHistory(time)[0].desiredRefreshRate);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // posting more infrequent buffer should make the layer infrequent
-    time += (MAX_FREQUENT_LAYER_PERIOD_NS + 1ms).count();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    time += (MAX_FREQUENT_LAYER_PERIOD_NS + 1ms).count();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(0, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // posting another buffer should keep the layer infrequent
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(0, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Min, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // posting more buffers would mean starting of an animation, so making the layer frequent
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(1, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // posting a buffer after long inactivity should retain the layer as active
-    time += std::chrono::nanoseconds(3s).count();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(0, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // posting another buffer should keep the layer frequent
-    time += (60_Hz).getPeriodNsecs();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(0, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, inconclusiveLayerBecomingFrequent) {
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // Fill up the window with frequent updates
-    for (int i = 0; i < FREQUENT_LAYER_WINDOW_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += (60_Hz).getPeriodNsecs();
-
-        EXPECT_EQ(1, layerCount());
-        ASSERT_EQ(1, summarizeLayerHistory(time).size());
-        EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-        EXPECT_EQ(1, activeLayerCount());
-        EXPECT_EQ(1, frequentLayerCount(time));
-    }
-
-    // posting infrequent buffers after long inactivity should make the layer
-    // inconclusive but frequent.
-    time += std::chrono::nanoseconds(3s).count();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    time += (MAX_FREQUENT_LAYER_PERIOD_NS + 1ms).count();
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(0, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Heuristic, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // posting more buffers should make the layer frequent and switch the refresh rate to max
-    // by clearing the history
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                     LayerHistory::LayerUpdateType::Buffer);
-    EXPECT_EQ(1, clearLayerHistoryCount(time));
-    ASSERT_EQ(1, summarizeLayerHistory(time).size());
-    EXPECT_EQ(LayerHistory::LayerVoteType::Max, summarizeLayerHistory(time)[0].vote);
-    EXPECT_EQ(1, activeLayerCount());
-    EXPECT_EQ(1, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-}
-
-TEST_F(LayerHistoryTest, getFramerate) {
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-    EXPECT_EQ(0, animatingLayerCount(time));
-
-    // layer is active but infrequent.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        history().record(layer->getSequence(), layer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += MAX_FREQUENT_LAYER_PERIOD_NS.count();
-    }
-
-    float expectedFramerate = 1e9f / MAX_FREQUENT_LAYER_PERIOD_NS.count();
-    EXPECT_FLOAT_EQ(expectedFramerate, history().getLayerFramerate(time, layer->getSequence()));
-}
-
-TEST_F(LayerHistoryTest, heuristicLayer60Hz) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-    for (float fps = 54.0f; fps < 65.0f; fps += 0.1f) {
-        recordFramesAndExpect(layer, time, Fps::fromValue(fps), 60_Hz, PRESENT_TIME_HISTORY_SIZE);
-    }
-}
-
-TEST_F(LayerHistoryTest, heuristicLayer60_30Hz) {
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-    recordFramesAndExpect(layer, time, 60_Hz, 60_Hz, PRESENT_TIME_HISTORY_SIZE);
-
-    recordFramesAndExpect(layer, time, 60_Hz, 60_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 30_Hz, 60_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 30_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 60_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 60_Hz, 60_Hz, PRESENT_TIME_HISTORY_SIZE);
-}
-
-TEST_F(LayerHistoryTest, heuristicLayerNotOscillating) {
-    SET_FLAG_FOR_TEST(flags::use_known_refresh_rate_for_fps_consistency, false);
-
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    recordFramesAndExpect(layer, time, 27.1_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 26.9_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 26_Hz, 24_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 26.9_Hz, 24_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 27.1_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-}
-
-TEST_F(LayerHistoryTest, heuristicLayerNotOscillating_useKnownRefreshRate) {
-    SET_FLAG_FOR_TEST(flags::use_known_refresh_rate_for_fps_consistency, true);
-
-    const auto layer = createLayer();
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    recordFramesAndExpect(layer, time, 27.1_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 26.9_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 26_Hz, 24_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 26.9_Hz, 24_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 27.1_Hz, 24_Hz, PRESENT_TIME_HISTORY_SIZE);
-    recordFramesAndExpect(layer, time, 27.1_Hz, 30_Hz, PRESENT_TIME_HISTORY_SIZE);
-}
-
-TEST_F(LayerHistoryTest, smallDirtyLayer) {
-    auto layer = createLayer();
-
-    EXPECT_CALL(*layer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(1, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-
-    LayerHistory::Summary summary;
-
-    // layer is active but infrequent.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE; i++) {
-        auto props = layer->getLayerProps();
-        if (i % 3 == 0) {
-            props.isSmallDirty = false;
-        } else {
-            props.isSmallDirty = true;
-        }
-
-        history().record(layer->getSequence(), props, time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    ASSERT_EQ(LayerHistory::LayerVoteType::Heuristic, summary[0].vote);
-    EXPECT_GE(HI_FPS, summary[0].desiredRefreshRate);
-}
-
-TEST_F(LayerHistoryTest, smallDirtyInMultiLayer) {
-    auto layer1 = createLayer("UI");
-    auto layer2 = createLayer("Video");
-
-    EXPECT_CALL(*layer1, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer1, getFrameRateForLayerTree()).WillRepeatedly(Return(Layer::FrameRate()));
-
-    EXPECT_CALL(*layer2, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*layer2, getFrameRateForLayerTree())
-            .WillRepeatedly(
-                    Return(Layer::FrameRate(30_Hz, Layer::FrameRateCompatibility::Default)));
-
-    nsecs_t time = systemTime();
-
-    EXPECT_EQ(2, layerCount());
-    EXPECT_EQ(0, activeLayerCount());
-    EXPECT_EQ(0, frequentLayerCount(time));
-
-    LayerHistory::Summary summary;
-
-    // layer1 is updating small dirty.
-    for (int i = 0; i < PRESENT_TIME_HISTORY_SIZE + FREQUENT_LAYER_WINDOW_SIZE + 1; i++) {
-        auto props = layer1->getLayerProps();
-        props.isSmallDirty = true;
-        history().record(layer1->getSequence(), props, 0 /*presentTime*/, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        history().record(layer2->getSequence(), layer2->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-        time += HI_FPS_PERIOD;
-        summary = summarizeLayerHistory(time);
-    }
-
-    ASSERT_EQ(1, summary.size());
-    ASSERT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, summary[0].vote);
-    ASSERT_EQ(30_Hz, summary[0].desiredRefreshRate);
-}
-
-class LayerHistoryTestParameterized : public LayerHistoryTest,
-                                      public testing::WithParamInterface<std::chrono::nanoseconds> {
-};
-
-TEST_P(LayerHistoryTestParameterized, HeuristicLayerWithInfrequentLayer) {
-    std::chrono::nanoseconds infrequentUpdateDelta = GetParam();
-    auto heuristicLayer = createLayer("HeuristicLayer");
-
-    EXPECT_CALL(*heuristicLayer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*heuristicLayer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(Layer::FrameRate()));
-
-    auto infrequentLayer = createLayer("InfrequentLayer");
-    EXPECT_CALL(*infrequentLayer, isVisible()).WillRepeatedly(Return(true));
-    EXPECT_CALL(*infrequentLayer, getFrameRateForLayerTree())
-            .WillRepeatedly(Return(Layer::FrameRate()));
-
-    const nsecs_t startTime = systemTime();
-
-    const std::chrono::nanoseconds heuristicUpdateDelta = 41'666'667ns;
-    history().record(heuristicLayer->getSequence(), heuristicLayer->getLayerProps(), startTime,
-                     startTime, LayerHistory::LayerUpdateType::Buffer);
-    history().record(infrequentLayer->getSequence(), heuristicLayer->getLayerProps(), startTime,
-                     startTime, LayerHistory::LayerUpdateType::Buffer);
-
-    nsecs_t time = startTime;
-    nsecs_t lastInfrequentUpdate = startTime;
-    const int totalInfrequentLayerUpdates = FREQUENT_LAYER_WINDOW_SIZE * 5;
-    int infrequentLayerUpdates = 0;
-    while (infrequentLayerUpdates <= totalInfrequentLayerUpdates) {
-        time += heuristicUpdateDelta.count();
-        history().record(heuristicLayer->getSequence(), heuristicLayer->getLayerProps(), time, time,
-                         LayerHistory::LayerUpdateType::Buffer);
-
-        if (time - lastInfrequentUpdate >= infrequentUpdateDelta.count()) {
-            ALOGI("submitting infrequent frame [%d/%d]", infrequentLayerUpdates,
-                  totalInfrequentLayerUpdates);
-            lastInfrequentUpdate = time;
-            history().record(infrequentLayer->getSequence(), infrequentLayer->getLayerProps(), time,
-                             time, LayerHistory::LayerUpdateType::Buffer);
-            infrequentLayerUpdates++;
-        }
-
-        if (time - startTime > PRESENT_TIME_HISTORY_DURATION.count()) {
-            ASSERT_NE(0, summarizeLayerHistory(time).size());
-            ASSERT_GE(2, summarizeLayerHistory(time).size());
-
-            bool max = false;
-            bool min = false;
-            Fps heuristic;
-            for (const auto& layer : summarizeLayerHistory(time)) {
-                if (layer.vote == LayerHistory::LayerVoteType::Heuristic) {
-                    heuristic = layer.desiredRefreshRate;
-                } else if (layer.vote == LayerHistory::LayerVoteType::Max) {
-                    max = true;
-                } else if (layer.vote == LayerHistory::LayerVoteType::Min) {
-                    min = true;
-                }
-            }
-
-            if (infrequentLayerUpdates > FREQUENT_LAYER_WINDOW_SIZE) {
-                EXPECT_EQ(24_Hz, heuristic);
-                EXPECT_FALSE(max);
-                if (summarizeLayerHistory(time).size() == 2) {
-                    EXPECT_TRUE(min);
-                }
-            }
-        }
-    }
-}
-
-INSTANTIATE_TEST_CASE_P(LeapYearTests, LayerHistoryTestParameterized,
-                        ::testing::Values(1s, 2s, 3s, 4s, 5s));
-
-} // namespace
-} // namespace android::scheduler
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wextra"
diff --git a/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp b/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp
index bc15dec..b4efe0f 100644
--- a/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp
@@ -61,18 +61,6 @@
 
 class LayerLifecycleManagerTest : public LayerHierarchyTestBase {
 protected:
-    std::unique_ptr<RequestedLayerState> rootLayer(uint32_t id) {
-        return std::make_unique<RequestedLayerState>(createArgs(/*id=*/id, /*canBeRoot=*/true,
-                                                                /*parent=*/UNASSIGNED_LAYER_ID,
-                                                                /*mirror=*/UNASSIGNED_LAYER_ID));
-    }
-
-    std::unique_ptr<RequestedLayerState> childLayer(uint32_t id, uint32_t parentId) {
-        return std::make_unique<RequestedLayerState>(createArgs(/*id=*/id, /*canBeRoot=*/false,
-                                                                parentId,
-                                                                /*mirror=*/UNASSIGNED_LAYER_ID));
-    }
-
     RequestedLayerState* getRequestedLayerState(LayerLifecycleManager& lifecycleManager,
                                                 uint32_t layerId) {
         return lifecycleManager.getLayerFromId(layerId);
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index 8b9ac93..2860345 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -56,6 +56,17 @@
 
 class LayerSnapshotTest : public LayerSnapshotTestBase {
 protected:
+    const Layer::FrameRate FRAME_RATE_VOTE1 =
+            Layer::FrameRate(67_Hz, scheduler::FrameRateCompatibility::Default);
+    const Layer::FrameRate FRAME_RATE_VOTE2 =
+            Layer::FrameRate(14_Hz, scheduler::FrameRateCompatibility::Default);
+    const Layer::FrameRate FRAME_RATE_VOTE3 =
+            Layer::FrameRate(99_Hz, scheduler::FrameRateCompatibility::Default);
+    const Layer::FrameRate FRAME_RATE_TREE =
+            Layer::FrameRate(Fps(), scheduler::FrameRateCompatibility::NoVote);
+    const Layer::FrameRate FRAME_RATE_NO_VOTE =
+            Layer::FrameRate(Fps(), scheduler::FrameRateCompatibility::Default);
+
     LayerSnapshotTest() : LayerSnapshotTestBase() {
         UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
     }
@@ -281,21 +292,132 @@
     EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eColorChanged);
 }
 
-TEST_F(LayerSnapshotTest, GameMode) {
+TEST_F(LayerSnapshotTest, ChildrenInheritGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(11)->gameMode, gui::GameMode::Performance);
+}
+
+TEST_F(LayerSnapshotTest, ChildrenCanOverrideGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    setGameMode(11, gui::GameMode::Battery);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(11)->gameMode, gui::GameMode::Battery);
+}
+
+TEST_F(LayerSnapshotTest, ReparentingUpdatesGameMode) {
+    setGameMode(1, gui::GameMode::Performance);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::GameMode | RequestedLayerState::Changes::Metadata);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
+    EXPECT_EQ(getSnapshot(1)->gameMode, gui::GameMode::Performance);
+    EXPECT_EQ(getSnapshot(2)->gameMode, gui::GameMode::Unsupported);
+
+    reparentLayer(2, 1);
+    setZ(2, 2);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(2)->gameMode, gui::GameMode::Performance);
+}
+
+TEST_F(LayerSnapshotTest, UpdateMetadata) {
     std::vector<TransactionState> transactions;
     transactions.emplace_back();
     transactions.back().states.push_back({});
     transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
+    // This test focuses on metadata used by ARC++ to ensure LayerMetadata is updated correctly,
+    // and not using stale data.
     transactions.back().states.front().state.metadata = LayerMetadata();
-    transactions.back().states.front().state.metadata.setInt32(METADATA_GAME_MODE, 42);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_OWNER_UID, 123);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_WINDOW_TYPE, 234);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_TASK_ID, 345);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_MOUSE_CURSOR, 456);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_ACCESSIBILITY_ID, 567);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_OWNER_PID, 678);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_CALLING_UID, 789);
+
     transactions.back().states.front().layerId = 1;
     transactions.back().states.front().state.layerId = static_cast<int32_t>(1);
+
     mLifecycleManager.applyTransactions(transactions);
-    EXPECT_EQ(mLifecycleManager.getGlobalChanges(), RequestedLayerState::Changes::GameMode);
-    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(), RequestedLayerState::Changes::Metadata);
+
+    // Setting includeMetadata=true to ensure metadata update is applied to LayerSnapshot
+    LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),
+                                    .layerLifecycleManager = mLifecycleManager,
+                                    .includeMetadata = true,
+                                    .displays = mFrontEndDisplayInfos,
+                                    .globalShadowSettings = globalShadowSettings,
+                                    .supportsBlur = true,
+                                    .supportedLayerGenericMetadata = {},
+                                    .genericLayerMetadataKeyMap = {}};
+    update(mSnapshotBuilder, args);
+
     EXPECT_EQ(getSnapshot(1)->clientChanges, layer_state_t::eMetadataChanged);
-    EXPECT_EQ(static_cast<int32_t>(getSnapshot(1)->gameMode), 42);
-    EXPECT_EQ(static_cast<int32_t>(getSnapshot(11)->gameMode), 42);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_OWNER_UID, -1), 123);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_WINDOW_TYPE, -1), 234);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_TASK_ID, -1), 345);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_MOUSE_CURSOR, -1), 456);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_ACCESSIBILITY_ID, -1), 567);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_OWNER_PID, -1), 678);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_CALLING_UID, -1), 789);
+}
+
+TEST_F(LayerSnapshotTest, UpdateMetadataOfHiddenLayers) {
+    hideLayer(1);
+
+    std::vector<TransactionState> transactions;
+    transactions.emplace_back();
+    transactions.back().states.push_back({});
+    transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
+    // This test focuses on metadata used by ARC++ to ensure LayerMetadata is updated correctly,
+    // and not using stale data.
+    transactions.back().states.front().state.metadata = LayerMetadata();
+    transactions.back().states.front().state.metadata.setInt32(METADATA_OWNER_UID, 123);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_WINDOW_TYPE, 234);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_TASK_ID, 345);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_MOUSE_CURSOR, 456);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_ACCESSIBILITY_ID, 567);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_OWNER_PID, 678);
+    transactions.back().states.front().state.metadata.setInt32(METADATA_CALLING_UID, 789);
+
+    transactions.back().states.front().layerId = 1;
+    transactions.back().states.front().state.layerId = static_cast<int32_t>(1);
+
+    mLifecycleManager.applyTransactions(transactions);
+    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
+              RequestedLayerState::Changes::Metadata | RequestedLayerState::Changes::Visibility |
+                      RequestedLayerState::Changes::VisibleRegion |
+                      RequestedLayerState::Changes::AffectsChildren);
+
+    // Setting includeMetadata=true to ensure metadata update is applied to LayerSnapshot
+    LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),
+                                    .layerLifecycleManager = mLifecycleManager,
+                                    .includeMetadata = true,
+                                    .displays = mFrontEndDisplayInfos,
+                                    .globalShadowSettings = globalShadowSettings,
+                                    .supportsBlur = true,
+                                    .supportedLayerGenericMetadata = {},
+                                    .genericLayerMetadataKeyMap = {}};
+    update(mSnapshotBuilder, args);
+
+    EXPECT_EQ(static_cast<int64_t>(getSnapshot(1)->clientChanges),
+              layer_state_t::eMetadataChanged | layer_state_t::eFlagsChanged);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_OWNER_UID, -1), 123);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_WINDOW_TYPE, -1), 234);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_TASK_ID, -1), 345);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_MOUSE_CURSOR, -1), 456);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_ACCESSIBILITY_ID, -1), 567);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_OWNER_PID, -1), 678);
+    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_CALLING_UID, -1), 789);
 }
 
 TEST_F(LayerSnapshotTest, NoLayerVoteForParentWithChildVotes) {
@@ -676,6 +798,155 @@
               scheduler::FrameRateCompatibility::Default);
 }
 
+TEST_F(LayerSnapshotTest, frameRateSetAndGet) {
+    setFrameRate(1, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    // verify parent is gets no vote
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE1);
+}
+
+TEST_F(LayerSnapshotTest, frameRateSetAndGetParent) {
+    setFrameRate(111, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_TREE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_TREE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(111, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
+TEST_F(LayerSnapshotTest, frameRateSetAndGetParentAllVote) {
+    setFrameRate(1, FRAME_RATE_VOTE3.vote.rate.getValue(), 0, 0);
+    setFrameRate(11, FRAME_RATE_VOTE2.vote.rate.getValue(), 0, 0);
+    setFrameRate(111, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE3);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE2);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(111, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE3);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE2);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE2);
+
+    setFrameRate(11, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE3);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE3);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE3);
+
+    setFrameRate(1, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
+TEST_F(LayerSnapshotTest, frameRateSetAndGetChild) {
+    setFrameRate(1, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(1, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
+TEST_F(LayerSnapshotTest, frameRateSetAndGetChildAllVote) {
+    setFrameRate(1, FRAME_RATE_VOTE3.vote.rate.getValue(), 0, 0);
+    setFrameRate(11, FRAME_RATE_VOTE2.vote.rate.getValue(), 0, 0);
+    setFrameRate(111, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE3);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE2);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(1, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_TREE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE2);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(11, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_TREE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_TREE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(111, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
+TEST_F(LayerSnapshotTest, frameRateSetAndGetChildAddAfterVote) {
+    setFrameRate(1, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    reparentLayer(111, 2);
+    std::vector<uint32_t> traversalOrder = {1, 11, 12, 121, 122, 1221, 13, 2, 111};
+    UPDATE_AND_VERIFY(mSnapshotBuilder, traversalOrder);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+
+    reparentLayer(111, 11);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    setFrameRate(1, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
+TEST_F(LayerSnapshotTest, frameRateSetAndGetChildRemoveAfterVote) {
+    setFrameRate(1, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_VOTE1);
+
+    reparentLayer(111, 2);
+    std::vector<uint32_t> traversalOrder = {1, 11, 12, 121, 122, 1221, 13, 2, 111};
+    UPDATE_AND_VERIFY(mSnapshotBuilder, traversalOrder);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+
+    setFrameRate(1, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, traversalOrder);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 111})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
+TEST_F(LayerSnapshotTest, frameRateAddChildForParentWithTreeVote) {
+    setFrameRate(11, FRAME_RATE_VOTE1.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_TREE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_VOTE1);
+    EXPECT_EQ(getSnapshot({.id = 12})->frameRate, FRAME_RATE_NO_VOTE);
+
+    setFrameRate(11, FRAME_RATE_NO_VOTE.vote.rate.getValue(), 0, 0);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot({.id = 1})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 11})->frameRate, FRAME_RATE_NO_VOTE);
+    EXPECT_EQ(getSnapshot({.id = 12})->frameRate, FRAME_RATE_NO_VOTE);
+}
+
 TEST_F(LayerSnapshotTest, translateDataspace) {
     setDataspace(1, ui::Dataspace::UNKNOWN);
     UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
@@ -854,7 +1125,7 @@
     EXPECT_FALSE(getSnapshot({.id = 1})->frameRate.vote.rate.isValid());
     EXPECT_EQ(getSnapshot({.id = 1})->frameRate.vote.type,
               scheduler::FrameRateCompatibility::NoVote);
-    EXPECT_FALSE(getSnapshot({.id = 1})->changes.test(RequestedLayerState::Changes::FrameRate));
+    EXPECT_TRUE(getSnapshot({.id = 1})->changes.test(RequestedLayerState::Changes::FrameRate));
 
     // verify layer 12 and all descendants (121, 122, 1221) get the requested vote
     EXPECT_FALSE(getSnapshot({.id = 12})->frameRate.vote.rate.isValid());
@@ -945,7 +1216,7 @@
     EXPECT_EQ(getSnapshot({.id = 1})->frameRate.vote.type,
               scheduler::FrameRateCompatibility::NoVote);
     EXPECT_EQ(getSnapshot({.id = 1})->frameRate.category, FrameRateCategory::Default);
-    EXPECT_FALSE(getSnapshot({.id = 1})->changes.test(RequestedLayerState::Changes::FrameRate));
+    EXPECT_TRUE(getSnapshot({.id = 1})->changes.test(RequestedLayerState::Changes::FrameRate));
 
     // verify layer 12 and all descendants (121, 122, 1221) get the requested vote
     EXPECT_FALSE(getSnapshot({.id = 12})->frameRate.vote.rate.isValid());
@@ -1304,6 +1575,17 @@
     EXPECT_TRUE(foundInputLayer);
 }
 
+TEST_F(LayerSnapshotTest, ForEachSnapshotsWithPredicate) {
+    std::vector<uint32_t> visitedUniqueSequences;
+    mSnapshotBuilder.forEachSnapshot(
+            [&](const std::unique_ptr<frontend::LayerSnapshot>& snapshot) {
+                visitedUniqueSequences.push_back(snapshot->uniqueSequence);
+            },
+            [](const frontend::LayerSnapshot& snapshot) { return snapshot.uniqueSequence == 111; });
+    EXPECT_EQ(visitedUniqueSequences.size(), 1u);
+    EXPECT_EQ(visitedUniqueSequences[0], 111u);
+}
+
 TEST_F(LayerSnapshotTest, canOccludePresentation) {
     setFlags(12, layer_state_t::eCanOccludePresentation, layer_state_t::eCanOccludePresentation);
     LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),
@@ -1435,4 +1717,48 @@
             gui::WindowInfo::InputConfig::TRUSTED_OVERLAY));
 }
 
+static constexpr const FloatRect LARGE_FLOAT_RECT{std::numeric_limits<float>::min(),
+                                                  std::numeric_limits<float>::min(),
+                                                  std::numeric_limits<float>::max(),
+                                                  std::numeric_limits<float>::max()};
+TEST_F(LayerSnapshotTest, layerVisibleByDefault) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_FALSE(getSnapshot(1)->isHiddenByPolicy());
+}
+
+TEST_F(LayerSnapshotTest, hideLayerWithZeroMatrix) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    setMatrix(1, 0.f, 0.f, 0.f, 0.f);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, {2});
+    EXPECT_TRUE(getSnapshot(1)->isHiddenByPolicy());
+}
+
+TEST_F(LayerSnapshotTest, hideLayerWithInfMatrix) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    setMatrix(1, std::numeric_limits<float>::infinity(), 0.f, 0.f,
+              std::numeric_limits<float>::infinity());
+    UPDATE_AND_VERIFY(mSnapshotBuilder, {2});
+    EXPECT_TRUE(getSnapshot(1)->isHiddenByPolicy());
+}
+
+TEST_F(LayerSnapshotTest, hideLayerWithNanMatrix) {
+    DisplayInfo info;
+    info.info.logicalHeight = 1000000;
+    info.info.logicalWidth = 1000000;
+    mFrontEndDisplayInfos.emplace_or_replace(ui::LayerStack::fromValue(1), info);
+    setMatrix(1, std::numeric_limits<float>::quiet_NaN(), 0.f, 0.f,
+              std::numeric_limits<float>::quiet_NaN());
+    UPDATE_AND_VERIFY(mSnapshotBuilder, {2});
+    EXPECT_TRUE(getSnapshot(1)->isHiddenByPolicy());
+}
 } // namespace android::surfaceflinger::frontend
diff --git a/services/surfaceflinger/tests/unittests/LayerTest.cpp b/services/surfaceflinger/tests/unittests/LayerTest.cpp
deleted file mode 100644
index 95e54f6..0000000
--- a/services/surfaceflinger/tests/unittests/LayerTest.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gtest/gtest.h>
-#include <ui/FloatRect.h>
-#include <ui/Transform.h>
-#include <limits>
-
-#include "LayerTestUtils.h"
-#include "TestableSurfaceFlinger.h"
-
-namespace android {
-namespace {
-
-class LayerTest : public BaseLayerTest {
-protected:
-    static constexpr const float MIN_FLOAT = std::numeric_limits<float>::min();
-    static constexpr const float MAX_FLOAT = std::numeric_limits<float>::max();
-    static constexpr const FloatRect LARGE_FLOAT_RECT{MIN_FLOAT, MIN_FLOAT, MAX_FLOAT, MAX_FLOAT};
-};
-
-INSTANTIATE_TEST_SUITE_P(PerLayerType, LayerTest,
-                         testing::Values(std::make_shared<BufferStateLayerFactory>(),
-                                         std::make_shared<EffectLayerFactory>()),
-                         PrintToStringParamName);
-
-TEST_P(LayerTest, layerVisibleByDefault) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-    ASSERT_FALSE(layer->isHiddenByPolicy());
-}
-
-TEST_P(LayerTest, hideLayerWithZeroMatrix) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-
-    layer_state_t::matrix22_t matrix{0, 0, 0, 0};
-    layer->setMatrix(matrix);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-
-    ASSERT_TRUE(layer->isHiddenByPolicy());
-}
-
-TEST_P(LayerTest, hideLayerWithInfMatrix) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-
-    constexpr const float INF = std::numeric_limits<float>::infinity();
-    layer_state_t::matrix22_t matrix{INF, 0, 0, INF};
-    layer->setMatrix(matrix);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-
-    ASSERT_TRUE(layer->isHiddenByPolicy());
-}
-
-TEST_P(LayerTest, hideLayerWithNanMatrix) {
-    sp<Layer> layer = GetParam()->createLayer(mFlinger);
-
-    constexpr const float QUIET_NAN = std::numeric_limits<float>::quiet_NaN();
-    layer_state_t::matrix22_t matrix{QUIET_NAN, 0, 0, QUIET_NAN};
-    layer->setMatrix(matrix);
-    layer->updateGeometry();
-    layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
-
-    ASSERT_TRUE(layer->isHiddenByPolicy());
-}
-
-} // namespace
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp b/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp
index e74f643..c879280 100644
--- a/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/PowerAdvisorTest.cpp
@@ -706,7 +706,7 @@
     testGpuScenario(config, res);
     EXPECT_EQ(res.gpuDurationNanos, 0L);
     EXPECT_EQ(res.cpuDurationNanos, 0L);
-    EXPECT_GE(res.durationNanos, toNanos(30ms + getErrorMargin()));
+    EXPECT_GE(res.durationNanos, toNanos(29ms + getErrorMargin()));
     EXPECT_LE(res.durationNanos, toNanos(31ms + getErrorMargin()));
 }
 
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
index cf9a7d3..06c4e30 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateSelectorTest.cpp
@@ -1562,7 +1562,7 @@
             // When frame rates get an equal score, the lower is chosen, unless there are Max votes.
             {0_Hz, FrameRateCategory::High, 90_Hz},
             {0_Hz, FrameRateCategory::Normal, 60_Hz},
-            {0_Hz, FrameRateCategory::Low, 30_Hz},
+            {0_Hz, FrameRateCategory::Low, 60_Hz},
             {0_Hz, FrameRateCategory::NoPreference, 60_Hz},
 
             // Cases that have both desired frame rate and frame rate category requirements.
@@ -1609,6 +1609,77 @@
     }
 }
 
+TEST_P(RefreshRateSelectorTest, getBestFrameRateMode_withFrameRateCategory_120_vrr) {
+    if (GetParam() != Config::FrameRateOverride::Enabled) {
+        return;
+    }
+
+    SET_FLAG_FOR_TEST(flags::vrr_config, true);
+    // Device with VRR config mode
+    auto selector = createSelector(kVrrMode_120, kModeId120);
+
+    struct Case {
+        // Params
+        Fps desiredFrameRate = 0_Hz;
+        FrameRateCategory frameRateCategory = FrameRateCategory::Default;
+
+        // Expected result
+        Fps expectedFrameRate = 0_Hz;
+    };
+
+    // Prepare a table with the vote and the expected refresh rate
+    const std::initializer_list<Case> testCases = {
+            // Cases that only have frame rate category requirements, but no desired frame rate.
+            // When frame rates get an equal score, the lower is chosen, unless there are Max votes.
+            {0_Hz, FrameRateCategory::High, 120_Hz},
+            {0_Hz, FrameRateCategory::Normal, 60_Hz},
+            {0_Hz, FrameRateCategory::Low, 48_Hz},
+            {0_Hz, FrameRateCategory::NoPreference, 120_Hz},
+
+            // Cases that have both desired frame rate and frame rate category requirements.
+            {24_Hz, FrameRateCategory::High, 120_Hz},
+            {30_Hz, FrameRateCategory::High, 120_Hz},
+            {12_Hz, FrameRateCategory::Normal, 60_Hz},
+            {24_Hz, FrameRateCategory::Low, 48_Hz},
+            {30_Hz, FrameRateCategory::NoPreference, 30_Hz},
+
+            // Cases that only have desired frame rate.
+            {30_Hz, FrameRateCategory::Default, 30_Hz},
+    };
+
+    for (auto testCase : testCases) {
+        std::vector<LayerRequirement> layers;
+        ALOGI("**** %s: Testing desiredFrameRate=%s, frameRateCategory=%s", __func__,
+              to_string(testCase.desiredFrameRate).c_str(),
+              ftl::enum_string(testCase.frameRateCategory).c_str());
+
+        if (testCase.desiredFrameRate.isValid()) {
+            std::stringstream ss;
+            ss << to_string(testCase.desiredFrameRate) << "ExplicitDefault";
+            LayerRequirement layer = {.name = ss.str(),
+                                      .vote = LayerVoteType::ExplicitDefault,
+                                      .desiredRefreshRate = testCase.desiredFrameRate,
+                                      .weight = 1.f};
+            layers.push_back(layer);
+        }
+
+        if (testCase.frameRateCategory != FrameRateCategory::Default) {
+            std::stringstream ss;
+            ss << "ExplicitCategory (" << ftl::enum_string(testCase.frameRateCategory) << ")";
+            LayerRequirement layer = {.name = ss.str(),
+                                      .vote = LayerVoteType::ExplicitCategory,
+                                      .frameRateCategory = testCase.frameRateCategory,
+                                      .weight = 1.f};
+            layers.push_back(layer);
+        }
+
+        EXPECT_EQ(testCase.expectedFrameRate, selector.getBestFrameRateMode(layers).fps)
+                << "Did not get expected frame rate for frameRate="
+                << to_string(testCase.desiredFrameRate)
+                << " category=" << ftl::enum_string(testCase.frameRateCategory);
+    }
+}
+
 TEST_P(RefreshRateSelectorTest,
        getBestFrameRateMode_withFrameRateCategoryMultiLayers_30_60_90_120) {
     auto selector = createSelector(makeModes(kMode30, kMode60, kMode90, kMode120), kModeId60);
@@ -2140,14 +2211,14 @@
             // These layers may switch modes because smoothSwitchOnly=false.
             {FrameRateCategory::Default, false, 120_Hz, kModeId120},
             {FrameRateCategory::NoPreference, false, 120_Hz, kModeId120},
-            {FrameRateCategory::Low, false, 30_Hz, kModeId60},
+            {FrameRateCategory::Low, false, 60_Hz, kModeId60},
             {FrameRateCategory::Normal, false, 60_Hz, kModeId60},
             {FrameRateCategory::High, false, 120_Hz, kModeId120},
 
             // These layers cannot change mode due to smoothSwitchOnly, and will definitely use
             // active mode (120Hz).
             {FrameRateCategory::NoPreference, true, 120_Hz, kModeId120},
-            {FrameRateCategory::Low, true, 40_Hz, kModeId120},
+            {FrameRateCategory::Low, true, 120_Hz, kModeId120},
             {FrameRateCategory::Normal, true, 120_Hz, kModeId120},
             {FrameRateCategory::High, true, 120_Hz, kModeId120},
     };
@@ -2207,13 +2278,13 @@
             {FrameRateCategory::Default, false, 120_Hz},
             // TODO(b/266481656): Once this bug is fixed, NoPreference should be a lower frame rate.
             {FrameRateCategory::NoPreference, false, 120_Hz},
-            {FrameRateCategory::Low, false, 30_Hz},
+            {FrameRateCategory::Low, false, 48_Hz},
             {FrameRateCategory::Normal, false, 60_Hz},
             {FrameRateCategory::High, false, 120_Hz},
             {FrameRateCategory::Default, true, 120_Hz},
             // TODO(b/266481656): Once this bug is fixed, NoPreference should be a lower frame rate.
             {FrameRateCategory::NoPreference, true, 120_Hz},
-            {FrameRateCategory::Low, true, 30_Hz},
+            {FrameRateCategory::Low, true, 48_Hz},
             {FrameRateCategory::Normal, true, 60_Hz},
             {FrameRateCategory::High, true, 120_Hz},
     };
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index fc54a8b..358f6b0 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -34,6 +34,7 @@
 #include "mock/MockSchedulerCallback.h"
 
 #include <FrontEnd/LayerHierarchy.h>
+#include <scheduler/FrameTime.h>
 
 #include <com_android_graphics_surfaceflinger_flags.h>
 #include "FpsOps.h"
@@ -77,6 +78,8 @@
 
     SchedulerTest();
 
+    static constexpr RefreshRateSelector::LayerRequirement kLayer = {.weight = 1.f};
+
     static constexpr PhysicalDisplayId kDisplayId1 = PhysicalDisplayId::fromPort(255u);
     static inline const ftl::NonNull<DisplayModePtr> kDisplay1Mode60 =
             ftl::as_non_null(createDisplayMode(kDisplayId1, DisplayModeId(0), 60_Hz));
@@ -84,6 +87,9 @@
             ftl::as_non_null(createDisplayMode(kDisplayId1, DisplayModeId(1), 120_Hz));
     static inline const DisplayModes kDisplay1Modes = makeModes(kDisplay1Mode60, kDisplay1Mode120);
 
+    static inline FrameRateMode kDisplay1Mode60_60{60_Hz, kDisplay1Mode60};
+    static inline FrameRateMode kDisplay1Mode120_120{120_Hz, kDisplay1Mode120};
+
     static constexpr PhysicalDisplayId kDisplayId2 = PhysicalDisplayId::fromPort(254u);
     static inline const ftl::NonNull<DisplayModePtr> kDisplay2Mode60 =
             ftl::as_non_null(createDisplayMode(kDisplayId2, DisplayModeId(0), 60_Hz));
@@ -122,6 +128,7 @@
             .WillRepeatedly(Return(mEventThreadConnection));
 
     mScheduler->setEventThread(Cycle::Render, std::move(eventThread));
+    mScheduler->setEventThread(Cycle::LastComposite, std::make_unique<MockEventThread>());
 
     mFlinger.resetScheduler(mScheduler);
 }
@@ -161,7 +168,17 @@
 
     // recordLayerHistory should be a noop
     ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
-    mScheduler->recordLayerHistory(layer->getSequence(), layer->getLayerProps(), 0, 0,
+    scheduler::LayerProps layerProps = {
+            .visible = true,
+            .bounds = {0, 0, 100, 100},
+            .transform = {},
+            .setFrameRateVote = {},
+            .frameRateSelectionPriority = Layer::PRIORITY_UNSET,
+            .isSmallDirty = false,
+            .isFrontBuffered = false,
+    };
+
+    mScheduler->recordLayerHistory(layer->getSequence(), layerProps, 0, 0,
                                    LayerHistory::LayerUpdateType::Buffer);
     ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
 
@@ -187,16 +204,53 @@
                                                                       kDisplay1Mode60->getId()));
 
     ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
-    mScheduler->recordLayerHistory(layer->getSequence(), layer->getLayerProps(), 0, 0,
+    scheduler::LayerProps layerProps = {
+            .visible = true,
+            .bounds = {0, 0, 100, 100},
+            .transform = {},
+            .setFrameRateVote = {},
+            .frameRateSelectionPriority = Layer::PRIORITY_UNSET,
+            .isSmallDirty = false,
+            .isFrontBuffered = false,
+    };
+    mScheduler->recordLayerHistory(layer->getSequence(), layerProps, 0, 0,
                                    LayerHistory::LayerUpdateType::Buffer);
     ASSERT_EQ(1u, mScheduler->getNumActiveLayers());
 }
 
-TEST_F(SchedulerTest, dispatchCachedReportedMode) {
-    mScheduler->clearCachedReportedMode();
+TEST_F(SchedulerTest, emitModeChangeEvent) {
+    const auto selectorPtr =
+            std::make_shared<RefreshRateSelector>(kDisplay1Modes, kDisplay1Mode120->getId());
+    mScheduler->registerDisplay(kDisplayId1, selectorPtr);
+    mScheduler->onDisplayModeChanged(kDisplayId1, kDisplay1Mode120_120);
 
+    mScheduler->setContentRequirements({kLayer});
+
+    // No event is emitted in response to idle.
     EXPECT_CALL(*mEventThread, onModeChanged(_)).Times(0);
-    EXPECT_NO_FATAL_FAILURE(mScheduler->dispatchCachedReportedMode());
+
+    using TimerState = TestableScheduler::TimerState;
+
+    mScheduler->idleTimerCallback(TimerState::Expired);
+    selectorPtr->setActiveMode(kDisplay1Mode60->getId(), 60_Hz);
+
+    auto layer = kLayer;
+    layer.vote = RefreshRateSelector::LayerVoteType::ExplicitExact;
+    layer.desiredRefreshRate = 60_Hz;
+    mScheduler->setContentRequirements({layer});
+
+    // An event is emitted implicitly despite choosing the same mode as when idle.
+    EXPECT_CALL(*mEventThread, onModeChanged(kDisplay1Mode60_60)).Times(1);
+
+    mScheduler->idleTimerCallback(TimerState::Reset);
+
+    mScheduler->setContentRequirements({kLayer});
+
+    // An event is emitted explicitly for the mode change.
+    EXPECT_CALL(*mEventThread, onModeChanged(kDisplay1Mode120_120)).Times(1);
+
+    mScheduler->touchTimerCallback(TimerState::Reset);
+    mScheduler->onDisplayModeChanged(kDisplayId1, kDisplay1Mode120_120);
 }
 
 TEST_F(SchedulerTest, calculateMaxAcquiredBufferCount) {
@@ -224,9 +278,16 @@
                                                                       kDisplay1Mode60->getId()));
 
     const sp<MockLayer> layer = sp<MockLayer>::make(mFlinger.flinger());
-    EXPECT_CALL(*layer, isVisible()).WillOnce(Return(true));
-
-    mScheduler->recordLayerHistory(layer->getSequence(), layer->getLayerProps(), 0, systemTime(),
+    scheduler::LayerProps layerProps = {
+            .visible = true,
+            .bounds = {0, 0, 0, 0},
+            .transform = {},
+            .setFrameRateVote = {},
+            .frameRateSelectionPriority = Layer::PRIORITY_UNSET,
+            .isSmallDirty = false,
+            .isFrontBuffered = false,
+    };
+    mScheduler->recordLayerHistory(layer->getSequence(), layerProps, 0, systemTime(),
                                    LayerHistory::LayerUpdateType::Buffer);
 
     constexpr hal::PowerMode kPowerModeOn = hal::PowerMode::ON;
@@ -245,14 +306,12 @@
                                             /*updateAttachedChoreographer*/ false);
 }
 
-TEST_F(SchedulerTest, chooseDisplayModesSingleDisplay) {
+TEST_F(SchedulerTest, chooseDisplayModes) {
     mScheduler->registerDisplay(kDisplayId1,
                                 std::make_shared<RefreshRateSelector>(kDisplay1Modes,
                                                                       kDisplay1Mode60->getId()));
 
-    std::vector<RefreshRateSelector::LayerRequirement> layers =
-            std::vector<RefreshRateSelector::LayerRequirement>({{.weight = 1.f}, {.weight = 1.f}});
-    mScheduler->setContentRequirements(layers);
+    mScheduler->setContentRequirements({kLayer, kLayer});
     GlobalSignals globalSignals = {.idle = true};
     mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
 
@@ -287,15 +346,14 @@
     EXPECT_EQ(choice->get(), DisplayModeChoice({120_Hz, kDisplay1Mode120}, globalSignals));
 }
 
-TEST_F(SchedulerTest, chooseDisplayModesSingleDisplayHighHintTouchSignal) {
+TEST_F(SchedulerTest, chooseDisplayModesHighHintTouchSignal) {
     mScheduler->registerDisplay(kDisplayId1,
                                 std::make_shared<RefreshRateSelector>(kDisplay1Modes,
                                                                       kDisplay1Mode60->getId()));
 
     using DisplayModeChoice = TestableScheduler::DisplayModeChoice;
 
-    std::vector<RefreshRateSelector::LayerRequirement> layers =
-            std::vector<RefreshRateSelector::LayerRequirement>({{.weight = 1.f}, {.weight = 1.f}});
+    std::vector<RefreshRateSelector::LayerRequirement> layers = {kLayer, kLayer};
     auto& lr1 = layers[0];
     auto& lr2 = layers[1];
 
@@ -370,9 +428,7 @@
                                                                                kDisplay2Mode60},
                                                                  GlobalSignals{});
 
-        std::vector<RefreshRateSelector::LayerRequirement> layers = {{.weight = 1.f},
-                                                                     {.weight = 1.f}};
-        mScheduler->setContentRequirements(layers);
+        mScheduler->setContentRequirements({kLayer, kLayer});
         mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
 
         const auto actualChoices = mScheduler->chooseDisplayModes();
@@ -607,7 +663,8 @@
                                              TimePoint::fromNs(2000)));
 
     // Not crossing the min frame period
-    vrrTracker->onFrameBegin(TimePoint::fromNs(2000), TimePoint::fromNs(1500));
+    vrrTracker->onFrameBegin(TimePoint::fromNs(2000),
+                             {TimePoint::fromNs(1500), TimePoint::fromNs(1500)});
     EXPECT_EQ(Fps::fromPeriodNsecs(1000),
               scheduler.getNextFrameInterval(kMode->getPhysicalDisplayId(),
                                              TimePoint::fromNs(2500)));
diff --git a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
deleted file mode 100644
index 9899d42..0000000
--- a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- * Copyright 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#undef LOG_TAG
-#define LOG_TAG "LibSurfaceFlingerUnittests"
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/FrameRateUtils.h>
-#include <gui/LayerMetadata.h>
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-#include "Layer.h"
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
-#include "FpsOps.h"
-#include "LayerTestUtils.h"
-#include "TestableSurfaceFlinger.h"
-#include "mock/DisplayHardware/MockComposer.h"
-#include "mock/MockVsyncController.h"
-
-namespace android {
-
-using testing::DoAll;
-using testing::Mock;
-using testing::SetArgPointee;
-
-using android::Hwc2::IComposer;
-using android::Hwc2::IComposerClient;
-
-using scheduler::LayerHistory;
-
-using FrameRate = Layer::FrameRate;
-using FrameRateCompatibility = Layer::FrameRateCompatibility;
-
-/**
- * This class tests the behaviour of Layer::SetFrameRate and Layer::GetFrameRate
- */
-class SetFrameRateTest : public BaseLayerTest {
-protected:
-    const FrameRate FRAME_RATE_VOTE1 = FrameRate(67_Hz, FrameRateCompatibility::Default);
-    const FrameRate FRAME_RATE_VOTE2 = FrameRate(14_Hz, FrameRateCompatibility::ExactOrMultiple);
-    const FrameRate FRAME_RATE_VOTE3 = FrameRate(99_Hz, FrameRateCompatibility::NoVote);
-    const FrameRate FRAME_RATE_TREE = FrameRate(Fps(), FrameRateCompatibility::NoVote);
-    const FrameRate FRAME_RATE_NO_VOTE = FrameRate(Fps(), FrameRateCompatibility::Default);
-
-    SetFrameRateTest();
-
-    void addChild(sp<Layer> layer, sp<Layer> child);
-    void removeChild(sp<Layer> layer, sp<Layer> child);
-    void commitTransaction();
-
-    std::vector<sp<Layer>> mLayers;
-};
-
-SetFrameRateTest::SetFrameRateTest() {
-    const ::testing::TestInfo* const test_info =
-            ::testing::UnitTest::GetInstance()->current_test_info();
-    ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
-
-    mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
-}
-
-void SetFrameRateTest::addChild(sp<Layer> layer, sp<Layer> child) {
-    layer->addChild(child);
-}
-
-void SetFrameRateTest::removeChild(sp<Layer> layer, sp<Layer> child) {
-    layer->removeChild(child);
-}
-
-void SetFrameRateTest::commitTransaction() {
-    for (auto layer : mLayers) {
-        layer->commitTransaction();
-    }
-}
-
-namespace {
-
-TEST_P(SetFrameRateTest, SetAndGet) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto layer = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    layer->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, layer->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetParent) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, child2);
-
-    child2->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    child2->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetParentAllVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, child2);
-
-    child2->setFrameRate(FRAME_RATE_VOTE1.vote);
-    child1->setFrameRate(FRAME_RATE_VOTE2.vote);
-    parent->setFrameRate(FRAME_RATE_VOTE3.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE3, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE2, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    child2->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE3, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE2, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE2, child2->getFrameRateForLayerTree());
-
-    child1->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE3, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE3, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE3, child2->getFrameRateForLayerTree());
-
-    parent->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetChild) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, child2);
-
-    parent->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    parent->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetChildAllVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, child2);
-
-    child2->setFrameRate(FRAME_RATE_VOTE1.vote);
-    child1->setFrameRate(FRAME_RATE_VOTE2.vote);
-    parent->setFrameRate(FRAME_RATE_VOTE3.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE3, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE2, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    parent->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE2, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    child1->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    child2->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetChildAddAfterVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-
-    parent->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-
-    addChild(child1, child2);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    parent->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetChildRemoveAfterVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, child2);
-
-    parent->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-
-    removeChild(child1, child2);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_VOTE1, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-
-    parent->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-TEST_P(SetFrameRateTest, SetAndGetParentNotInTree) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    auto child2_1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, child2);
-    addChild(child1, child2_1);
-
-    child2->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, child2->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2_1->getFrameRateForLayerTree());
-
-    child2->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2_1->getFrameRateForLayerTree());
-}
-
-INSTANTIATE_TEST_SUITE_P(PerLayerType, SetFrameRateTest,
-                         testing::Values(std::make_shared<BufferStateLayerFactory>(),
-                                         std::make_shared<EffectLayerFactory>()),
-                         PrintToStringParamName);
-
-TEST_P(SetFrameRateTest, SetOnParentActivatesTree) {
-    const auto& layerFactory = GetParam();
-
-    auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    auto child = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    addChild(parent, child);
-
-    parent->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-
-    auto& history = mFlinger.mutableScheduler().mutableLayerHistory();
-    history.record(parent->getSequence(), parent->getLayerProps(), 0, 0,
-                   LayerHistory::LayerUpdateType::Buffer);
-    history.record(child->getSequence(), child->getLayerProps(), 0, 0,
-                   LayerHistory::LayerUpdateType::Buffer);
-
-    const auto selectorPtr = mFlinger.mutableScheduler().refreshRateSelector();
-    const auto summary = history.summarize(*selectorPtr, 0);
-
-    ASSERT_EQ(2u, summary.size());
-    EXPECT_EQ(FRAME_RATE_VOTE1.vote.rate, summary[0].desiredRefreshRate);
-    EXPECT_EQ(FRAME_RATE_VOTE1.vote.rate, summary[1].desiredRefreshRate);
-}
-
-TEST_P(SetFrameRateTest, addChildForParentWithTreeVote) {
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
-
-    const auto& layerFactory = GetParam();
-
-    const auto parent = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    const auto child1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    const auto child2 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-    const auto childOfChild1 = mLayers.emplace_back(layerFactory->createLayer(mFlinger));
-
-    addChild(parent, child1);
-    addChild(child1, childOfChild1);
-
-    childOfChild1->setFrameRate(FRAME_RATE_VOTE1.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, childOfChild1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-
-    addChild(parent, child2);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_TREE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_TREE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_VOTE1, childOfChild1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-
-    childOfChild1->setFrameRate(FRAME_RATE_NO_VOTE.vote);
-    commitTransaction();
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, parent->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, childOfChild1->getFrameRateForLayerTree());
-    EXPECT_EQ(FRAME_RATE_NO_VOTE, child2->getFrameRateForLayerTree());
-}
-
-} // namespace
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp
index ff7612e..d638024 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_ColorMatrixTest.cpp
@@ -28,7 +28,6 @@
 class ColorMatrixTest : public CommitAndCompositeTest {};
 
 TEST_F(ColorMatrixTest, colorMatrixChanged) {
-    mFlinger.enableLayerLifecycleManager();
     EXPECT_COLOR_MATRIX_CHANGED(true, true);
     mFlinger.mutableTransactionFlags() |= eTransactionNeeded;
 
@@ -46,7 +45,6 @@
 }
 
 TEST_F(ColorMatrixTest, colorMatrixChangedAfterDisplayTransaction) {
-    mFlinger.enableLayerLifecycleManager();
     EXPECT_COLOR_MATRIX_CHANGED(true, true);
     mFlinger.mutableTransactionFlags() |= eTransactionNeeded;
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
index e5f2a91..2d3ebb4 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
@@ -97,7 +97,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 }
 
 TEST_F(CreateDisplayTest, createDisplaySetsCurrentStateForSecureDisplay) {
@@ -129,7 +129,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 }
 
 TEST_F(CreateDisplayTest, createDisplaySetsCurrentStateForUniqueId) {
@@ -159,7 +159,7 @@
     // Cleanup conditions
 
     // Creating the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 }
 
 // Requesting 0 tells SF not to do anything, i.e., default to refresh as physical displays
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
index f8ad8e1..df8f68f 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
@@ -38,7 +38,7 @@
     // Call Expectations
 
     // Destroying the display commits a display transaction.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     // --------------------------------------------------------------------
     // Invocation
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp
index 0c3e875..4b0a7c3 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayModeSwitching.cpp
@@ -42,6 +42,47 @@
 using android::hardware::graphics::composer::V2_4::Error;
 using android::hardware::graphics::composer::V2_4::VsyncPeriodChangeTimeline;
 
+MATCHER_P2(ModeSettledTo, dmc, modeId, "") {
+    const auto displayId = arg->getPhysicalId();
+
+    if (const auto desiredOpt = dmc->getDesiredMode(displayId)) {
+        *result_listener << "Unsettled desired mode "
+                         << ftl::to_underlying(desiredOpt->mode.modePtr->getId());
+        return false;
+    }
+
+    if (dmc->getActiveMode(displayId).modePtr->getId() != modeId) {
+        *result_listener << "Settled to unexpected active mode " << ftl::to_underlying(modeId);
+        return false;
+    }
+
+    return true;
+}
+
+MATCHER_P2(ModeSwitchingTo, flinger, modeId, "") {
+    const auto displayId = arg->getPhysicalId();
+    auto& dmc = flinger->mutableDisplayModeController();
+
+    if (!dmc.getDesiredMode(displayId)) {
+        *result_listener << "No desired mode";
+        return false;
+    }
+
+    if (dmc.getDesiredMode(displayId)->mode.modePtr->getId() != modeId) {
+        *result_listener << "Unexpected desired mode " << ftl::to_underlying(modeId);
+        return false;
+    }
+
+    // VsyncModulator should react to mode switches on the pacesetter display.
+    if (displayId == flinger->scheduler()->pacesetterDisplayId() &&
+        !flinger->scheduler()->vsyncModulator().isVsyncConfigEarly()) {
+        *result_listener << "VsyncModulator did not shift to early phase";
+        return false;
+    }
+
+    return true;
+}
+
 class DisplayModeSwitchingTest : public DisplayTransactionTest {
 public:
     void SetUp() override {
@@ -58,8 +99,7 @@
 
         setupScheduler(selectorPtr);
 
-        mFlinger.onComposerHalHotplugEvent(PrimaryDisplayVariant::HWC_DISPLAY_ID,
-                                           DisplayHotplugEvent::CONNECTED);
+        mFlinger.onComposerHalHotplugEvent(kInnerDisplayHwcId, DisplayHotplugEvent::CONNECTED);
         mFlinger.configureAndCommit();
 
         auto vsyncController = std::make_unique<mock::VsyncController>();
@@ -87,8 +127,13 @@
     static constexpr HWDisplayId kInnerDisplayHwcId = PrimaryDisplayVariant::HWC_DISPLAY_ID;
     static constexpr HWDisplayId kOuterDisplayHwcId = kInnerDisplayHwcId + 1;
 
+    static constexpr PhysicalDisplayId kOuterDisplayId = PhysicalDisplayId::fromPort(254u);
+
     auto injectOuterDisplay() {
-        constexpr PhysicalDisplayId kOuterDisplayId = PhysicalDisplayId::fromPort(254u);
+        // For the inner display, this is handled by setupHwcHotplugCallExpectations.
+        EXPECT_CALL(*mComposer, getDisplayConnectionType(kOuterDisplayHwcId, _))
+                .WillOnce(DoAll(SetArgPointee<1>(IComposerClient::DisplayConnectionType::INTERNAL),
+                                Return(hal::V2_4::Error::NONE)));
 
         constexpr bool kIsPrimary = false;
         TestableSurfaceFlinger::FakeHwcDisplayInjector(kOuterDisplayId, hal::DisplayType::PHYSICAL,
@@ -169,129 +214,139 @@
                             TestableSurfaceFlinger::SchedulerCallbackImpl::kNoOp);
 }
 
-TEST_F(DisplayModeSwitchingTest, changeRefreshRateOnActiveDisplayWithRefreshRequired) {
-    ftl::FakeGuard guard(kMainThreadContext);
+TEST_F(DisplayModeSwitchingTest, changeRefreshRateWithRefreshRequired) {
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId60));
 
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz)));
 
-    mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
-
-    mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90, false, 0, 120));
-
-    ASSERT_TRUE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getDesiredMode(mDisplayId)->mode.modePtr->getId(), kModeId90);
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
+    EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
 
     // Verify that next commit will call setActiveConfigWithConstraints in HWC
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90);
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
 
     mFlinger.commit();
-
     Mock::VerifyAndClearExpectations(mComposer);
 
-    EXPECT_TRUE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
+    EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
 
     // Verify that the next commit will complete the mode change and send
     // a onModeChanged event to the framework.
 
     EXPECT_CALL(*mAppEventThread,
                 onModeChanged(scheduler::FrameRateMode{90_Hz, ftl::as_non_null(kMode90)}));
+
     mFlinger.commit();
     Mock::VerifyAndClearExpectations(mAppEventThread);
 
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId90);
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId90));
 }
 
-TEST_F(DisplayModeSwitchingTest, changeRefreshRateOnActiveDisplayWithoutRefreshRequired) {
-    ftl::FakeGuard guard(kMainThreadContext);
+TEST_F(DisplayModeSwitchingTest, changeRefreshRateWithoutRefreshRequired) {
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId60));
 
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
+    constexpr bool kAllowGroupSwitching = true;
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(
+                      mDisplay->getDisplayToken().promote(),
+                      mock::createDisplayModeSpecs(kModeId90, 120_Hz, kAllowGroupSwitching)));
 
-    mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
-
-    mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90, true, 0, 120));
-
-    ASSERT_TRUE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getDesiredMode(mDisplayId)->mode.modePtr->getId(), kModeId90);
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
+    EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
 
     // Verify that next commit will call setActiveConfigWithConstraints in HWC
     // and complete the mode change.
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = false};
-    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90);
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
 
     EXPECT_CALL(*mAppEventThread,
                 onModeChanged(scheduler::FrameRateMode{90_Hz, ftl::as_non_null(kMode90)}));
 
     mFlinger.commit();
 
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId90);
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId90));
 }
 
-TEST_F(DisplayModeSwitchingTest, twoConsecutiveSetDesiredDisplayModeSpecs) {
-    ftl::FakeGuard guard(kMainThreadContext);
+TEST_F(DisplayModeSwitchingTest, changeRefreshRateOnTwoDisplaysWithoutRefreshRequired) {
+    const auto [innerDisplay, outerDisplay] = injectOuterDisplay();
 
-    // Test that if we call setDesiredDisplayModeSpecs while a previous mode change
-    // is still being processed the later call will be respected.
+    EXPECT_THAT(innerDisplay, ModeSettledTo(&dmc(), kModeId60));
+    EXPECT_THAT(outerDisplay, ModeSettledTo(&dmc(), kModeId120));
 
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz,
+                                                                               true)));
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
+                                                  mock::createDisplayModeSpecs(kModeId60, 60_Hz,
+                                                                               true)));
 
-    mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
-
-    mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90, false, 0, 120));
-
-    const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
-    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90);
-
-    mFlinger.commit();
-
-    mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId120, false, 0, 180));
-
-    ASSERT_TRUE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getDesiredMode(mDisplayId)->mode.modePtr->getId(), kModeId120);
-
-    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId120);
-
-    mFlinger.commit();
-
-    ASSERT_TRUE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getDesiredMode(mDisplayId)->mode.modePtr->getId(), kModeId120);
-
-    mFlinger.commit();
-
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId120);
-}
-
-TEST_F(DisplayModeSwitchingTest, changeResolutionOnActiveDisplayWithoutRefreshRequired) {
-    ftl::FakeGuard guard(kMainThreadContext);
-
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
-
-    mFlinger.onActiveDisplayChanged(nullptr, *mDisplay);
-
-    mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                        mock::createDisplayModeSpecs(kModeId90_4K, false, 0, 120));
-
-    ASSERT_TRUE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getDesiredMode(mDisplayId)->mode.modePtr->getId(), kModeId90_4K);
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId60);
+    EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
+    EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
 
     // Verify that next commit will call setActiveConfigWithConstraints in HWC
     // and complete the mode change.
     const VsyncPeriodChangeTimeline timeline{.refreshRequired = false};
-    EXPECT_SET_ACTIVE_CONFIG(PrimaryDisplayVariant::HWC_DISPLAY_ID, kModeId90_4K);
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
+    EXPECT_SET_ACTIVE_CONFIG(kOuterDisplayHwcId, kModeId60);
+
+    EXPECT_CALL(*mAppEventThread, onModeChanged(_)).Times(2);
+
+    mFlinger.commit();
+
+    EXPECT_THAT(innerDisplay, ModeSettledTo(&dmc(), kModeId90));
+    EXPECT_THAT(outerDisplay, ModeSettledTo(&dmc(), kModeId60));
+}
+
+TEST_F(DisplayModeSwitchingTest, twoConsecutiveSetDesiredDisplayModeSpecs) {
+    // Test that if we call setDesiredDisplayModeSpecs while a previous mode change
+    // is still being processed the later call will be respected.
+
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId60));
+
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz)));
+
+    const VsyncPeriodChangeTimeline timeline{.refreshRequired = true};
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90);
+
+    mFlinger.commit();
+
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
+                                                  mock::createDisplayModeSpecs(kModeId120,
+                                                                               180_Hz)));
+
+    EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId120));
+
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId120);
+
+    mFlinger.commit();
+
+    EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId120));
+
+    mFlinger.commit();
+
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId120));
+}
+
+TEST_F(DisplayModeSwitchingTest, changeResolutionWithoutRefreshRequired) {
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId60));
+
+    EXPECT_EQ(NO_ERROR,
+              mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
+                                                  mock::createDisplayModeSpecs(kModeId90_4K,
+                                                                               120_Hz)));
+
+    EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId90_4K));
+
+    // Verify that next commit will call setActiveConfigWithConstraints in HWC
+    // and complete the mode change.
+    const VsyncPeriodChangeTimeline timeline{.refreshRequired = false};
+    EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId90_4K);
 
     EXPECT_CALL(*mAppEventThread, onHotplugReceived(mDisplayId, true));
 
@@ -310,61 +365,12 @@
 
     mFlinger.commit();
 
-    EXPECT_FALSE(dmc().getDesiredMode(mDisplayId));
-    EXPECT_EQ(dmc().getActiveMode(mDisplayId).modePtr->getId(), kModeId90_4K);
-}
-
-MATCHER_P2(ModeSwitchingTo, flinger, modeId, "") {
-    const auto displayId = arg->getPhysicalId();
-    auto& dmc = flinger->mutableDisplayModeController();
-
-    if (!dmc.getDesiredMode(displayId)) {
-        *result_listener << "No desired mode";
-        return false;
-    }
-
-    if (dmc.getDesiredMode(displayId)->mode.modePtr->getId() != modeId) {
-        *result_listener << "Unexpected desired mode " << ftl::to_underlying(modeId);
-        return false;
-    }
-
-    // VsyncModulator should react to mode switches on the pacesetter display.
-    if (displayId == flinger->scheduler()->pacesetterDisplayId() &&
-        !flinger->scheduler()->vsyncModulator().isVsyncConfigEarly()) {
-        *result_listener << "VsyncModulator did not shift to early phase";
-        return false;
-    }
-
-    return true;
-}
-
-MATCHER_P2(ModeSettledTo, dmc, modeId, "") {
-    const auto displayId = arg->getPhysicalId();
-
-    if (const auto desiredOpt = dmc->getDesiredMode(displayId)) {
-        *result_listener << "Unsettled desired mode "
-                         << ftl::to_underlying(desiredOpt->mode.modePtr->getId());
-        return false;
-    }
-
-    ftl::FakeGuard guard(kMainThreadContext);
-
-    if (dmc->getActiveMode(displayId).modePtr->getId() != modeId) {
-        *result_listener << "Settled to unexpected active mode " << ftl::to_underlying(modeId);
-        return false;
-    }
-
-    return true;
+    EXPECT_THAT(mDisplay, ModeSettledTo(&dmc(), kModeId90_4K));
 }
 
 TEST_F(DisplayModeSwitchingTest, innerXorOuterDisplay) {
     SET_FLAG_FOR_TEST(flags::connected_display, true);
 
-    // For the inner display, this is handled by setupHwcHotplugCallExpectations.
-    EXPECT_CALL(*mComposer, getDisplayConnectionType(kOuterDisplayHwcId, _))
-            .WillOnce(DoAll(SetArgPointee<1>(IComposerClient::DisplayConnectionType::INTERNAL),
-                            Return(hal::V2_4::Error::NONE)));
-
     const auto [innerDisplay, outerDisplay] = injectOuterDisplay();
 
     EXPECT_TRUE(innerDisplay->isPoweredOn());
@@ -381,13 +387,11 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz)));
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, 120_Hz)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
     EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
@@ -414,8 +418,7 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, 120_Hz)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
     EXPECT_SET_ACTIVE_CONFIG(kInnerDisplayHwcId, kModeId60);
@@ -434,10 +437,6 @@
 TEST_F(DisplayModeSwitchingTest, innerAndOuterDisplay) {
     SET_FLAG_FOR_TEST(flags::connected_display, true);
 
-    // For the inner display, this is handled by setupHwcHotplugCallExpectations.
-    EXPECT_CALL(*mComposer, getDisplayConnectionType(kOuterDisplayHwcId, _))
-            .WillOnce(DoAll(SetArgPointee<1>(IComposerClient::DisplayConnectionType::INTERNAL),
-                            Return(hal::V2_4::Error::NONE)));
     const auto [innerDisplay, outerDisplay] = injectOuterDisplay();
 
     EXPECT_TRUE(innerDisplay->isPoweredOn());
@@ -454,13 +453,11 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz)));
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, 120_Hz)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
     EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
@@ -486,8 +483,7 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(mDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz)));
 
     EXPECT_THAT(mDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
 
@@ -511,11 +507,6 @@
 TEST_F(DisplayModeSwitchingTest, powerOffDuringConcurrentModeSet) {
     SET_FLAG_FOR_TEST(flags::connected_display, true);
 
-    // For the inner display, this is handled by setupHwcHotplugCallExpectations.
-    EXPECT_CALL(*mComposer, getDisplayConnectionType(kOuterDisplayHwcId, _))
-            .WillOnce(DoAll(SetArgPointee<1>(IComposerClient::DisplayConnectionType::INTERNAL),
-                            Return(hal::V2_4::Error::NONE)));
-
     const auto [innerDisplay, outerDisplay] = injectOuterDisplay();
 
     EXPECT_TRUE(innerDisplay->isPoweredOn());
@@ -532,13 +523,11 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(innerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId90, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId90, 120_Hz)));
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId60, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId60, 120_Hz)));
 
     EXPECT_THAT(innerDisplay, ModeSwitchingTo(&mFlinger, kModeId90));
     EXPECT_THAT(outerDisplay, ModeSwitchingTo(&mFlinger, kModeId60));
@@ -566,8 +555,8 @@
 
     EXPECT_EQ(NO_ERROR,
               mFlinger.setDesiredDisplayModeSpecs(outerDisplay->getDisplayToken().promote(),
-                                                  mock::createDisplayModeSpecs(kModeId120, false,
-                                                                               0.f, 120.f)));
+                                                  mock::createDisplayModeSpecs(kModeId120,
+                                                                               120_Hz)));
 
     EXPECT_SET_ACTIVE_CONFIG(kOuterDisplayHwcId, kModeId120);
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp
index b620830..9bf344c 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp
@@ -265,6 +265,13 @@
     processesHotplugConnectCommon<SimpleExternalDisplayCase>();
 }
 
+TEST_F(DisplayTransactionCommitTest, processesHotplugConnectNonSecureExternalDisplay) {
+    // Inject a primary display.
+    PrimaryDisplayVariant::injectHwcDisplay(this);
+
+    processesHotplugConnectCommon<SimpleExternalDisplayNonSecureCase>();
+}
+
 TEST_F(DisplayTransactionCommitTest, ignoresHotplugConnectIfPrimaryAndExternalAlreadyConnected) {
     // Inject both a primary and external display.
     PrimaryDisplayVariant::injectHwcDisplay(this);
@@ -273,13 +280,29 @@
     // TODO: This is an unnecessary call.
     EXPECT_CALL(*mComposer,
                 getDisplayIdentificationData(TertiaryDisplayVariant::HWC_DISPLAY_ID, _, _))
-            .WillOnce(DoAll(SetArgPointee<1>(TertiaryDisplay::PORT),
-                            SetArgPointee<2>(TertiaryDisplay::GET_IDENTIFICATION_DATA()),
+            .WillOnce(DoAll(SetArgPointee<1>(TertiaryDisplay<kSecure>::PORT),
+                            SetArgPointee<2>(TertiaryDisplay<kSecure>::GET_IDENTIFICATION_DATA()),
                             Return(Error::NONE)));
 
     ignoresHotplugConnectCommon<SimpleTertiaryDisplayCase>();
 }
 
+TEST_F(DisplayTransactionCommitTest,
+       ignoresHotplugConnectNonSecureIfPrimaryAndExternalAlreadyConnected) {
+    // Inject both a primary and external display.
+    PrimaryDisplayVariant::injectHwcDisplay(this);
+    ExternalDisplayVariant::injectHwcDisplay(this);
+
+    // TODO: This is an unnecessary call.
+    EXPECT_CALL(*mComposer,
+                getDisplayIdentificationData(TertiaryDisplayVariant::HWC_DISPLAY_ID, _, _))
+            .WillOnce(DoAll(SetArgPointee<1>(TertiaryDisplay<kSecure>::PORT),
+                            SetArgPointee<2>(TertiaryDisplay<kSecure>::GET_IDENTIFICATION_DATA()),
+                            Return(Error::NONE)));
+
+    ignoresHotplugConnectCommon<SimpleTertiaryDisplayNonSecureCase>();
+}
+
 TEST_F(DisplayTransactionCommitTest, processesHotplugDisconnectPrimaryDisplay) {
     EXPECT_EXIT(processesHotplugDisconnectCommon<SimplePrimaryDisplayCase>(),
                 testing::KilledBySignal(SIGABRT), "Primary display cannot be disconnected.");
@@ -289,6 +312,10 @@
     processesHotplugDisconnectCommon<SimpleExternalDisplayCase>();
 }
 
+TEST_F(DisplayTransactionCommitTest, processesHotplugDisconnectNonSecureExternalDisplay) {
+    processesHotplugDisconnectCommon<SimpleExternalDisplayNonSecureCase>();
+}
+
 TEST_F(DisplayTransactionCommitTest, processesHotplugConnectThenDisconnectPrimary) {
     EXPECT_EXIT(
             [this] {
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
index 897f9a0..aef467a 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HotplugTest.cpp
@@ -48,7 +48,7 @@
 
 TEST_F(HotplugTest, schedulesFrameToCommitDisplayTransaction) {
     EXPECT_CALL(*mFlinger.scheduler(), scheduleConfigure()).Times(1);
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     constexpr HWDisplayId displayId1 = 456;
     mFlinger.onComposerHalHotplugEvent(displayId1, DisplayHotplugEvent::DISCONNECTED);
@@ -73,7 +73,7 @@
             .WillOnce(Return(Error::NONE));
 
     // A single commit should be scheduled for both configure calls.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     ExternalDisplay::injectPendingHotplugEvent(this, Connection::CONNECTED);
     mFlinger.configure();
@@ -116,7 +116,7 @@
                 setVsyncEnabled(ExternalDisplay::HWC_DISPLAY_ID, IComposerClient::Vsync::DISABLE))
             .WillOnce(Return(Error::NONE));
 
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     ExternalDisplay::injectPendingHotplugEvent(this, Connection::CONNECTED);
     mFlinger.configure();
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
index eaf4684..5231965 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_InitializeDisplaysTest.cpp
@@ -28,7 +28,7 @@
 
 TEST_F(InitializeDisplaysTest, initializesDisplays) {
     // Scheduled by the display transaction, and by powering on each display.
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(3);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(3);
 
     EXPECT_CALL(static_cast<mock::VSyncTracker&>(
                         mFlinger.scheduler()->getVsyncSchedule()->getTracker()),
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
index 83e2f98..fed7b2e 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
@@ -271,7 +271,7 @@
     }
 
     static void setupRepaintEverythingCallExpectations(DisplayTransactionTest* test) {
-        EXPECT_CALL(*test->mFlinger.scheduler(), scheduleFrame()).Times(1);
+        EXPECT_CALL(*test->mFlinger.scheduler(), scheduleFrame(_)).Times(1);
     }
 
     static void setupComposerCallExpectations(DisplayTransactionTest* test, PowerMode mode) {
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp
deleted file mode 100644
index 0e5f1ea..0000000
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_UpdateLayerMetadataSnapshotTest.cpp
+++ /dev/null
@@ -1,194 +0,0 @@
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <gui/LayerMetadata.h>
-
-#include "TestableSurfaceFlinger.h"
-
-namespace android {
-
-using testing::_;
-using testing::Return;
-
-class SurfaceFlingerUpdateLayerMetadataSnapshotTest : public testing::Test {
-public:
-    SurfaceFlingerUpdateLayerMetadataSnapshotTest() { mFlinger.setupMockScheduler(); }
-
-protected:
-    sp<Layer> createLayer(const char* name, LayerMetadata& inOutlayerMetadata) {
-        LayerCreationArgs args =
-                LayerCreationArgs{mFlinger.flinger(), nullptr, name, 0, inOutlayerMetadata};
-        inOutlayerMetadata = args.metadata;
-        return sp<Layer>::make(args);
-    }
-
-    TestableSurfaceFlinger mFlinger;
-};
-
-class LayerMetadataBuilder {
-public:
-    LayerMetadataBuilder(LayerMetadata layerMetadata = {}) : mLayerMetadata(layerMetadata) {}
-
-    LayerMetadataBuilder& setInt32(uint32_t key, int32_t value) {
-        mLayerMetadata.setInt32(key, value);
-        return *this;
-    }
-
-    LayerMetadata build() { return mLayerMetadata; }
-
-private:
-    LayerMetadata mLayerMetadata;
-};
-
-bool operator==(const LayerMetadata& lhs, const LayerMetadata& rhs) {
-    return lhs.mMap == rhs.mMap;
-}
-
-std::ostream& operator<<(std::ostream& stream, const LayerMetadata& layerMetadata) {
-    stream << "LayerMetadata{";
-    for (auto it = layerMetadata.mMap.cbegin(); it != layerMetadata.mMap.cend(); it++) {
-        if (it != layerMetadata.mMap.cbegin()) {
-            stream << ", ";
-        }
-        stream << layerMetadata.itemToString(it->first, ":");
-    }
-    return stream << "}";
-}
-
-// Test that the snapshot's layer metadata is set.
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesSnapshotMetadata) {
-    auto layerMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 1).build();
-    auto layer = createLayer("layer", layerMetadata);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layer);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layer->getLayerSnapshot()->layerMetadata, layerMetadata);
-}
-
-// Test that snapshot layer metadata is set by merging the child's metadata on top of its
-// parent's metadata.
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, mergesSnapshotMetadata) {
-    auto layerAMetadata = LayerMetadataBuilder()
-                                  .setInt32(METADATA_OWNER_UID, 1)
-                                  .setInt32(METADATA_TASK_ID, 2)
-                                  .build();
-    auto layerA = createLayer("parent", layerAMetadata);
-    auto layerBMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 3).build();
-    auto layerB = createLayer("child", layerBMetadata);
-    layerA->addChild(layerB);
-    layerA->commitChildList();
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layerA->getLayerSnapshot()->layerMetadata, layerAMetadata);
-    auto expectedChildMetadata =
-            LayerMetadataBuilder(layerAMetadata).setInt32(METADATA_TASK_ID, 3).build();
-    EXPECT_EQ(layerB->getLayerSnapshot()->layerMetadata, expectedChildMetadata);
-}
-
-// Test that snapshot relative layer metadata is set to the parent's layer metadata merged on top of
-// that parent's relative layer metadata.
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesRelativeMetadata) {
-    auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 1).build();
-    auto layerA = createLayer("relative-parent", layerAMetadata);
-    auto layerAHandle = layerA->getHandle();
-    auto layerBMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 2).build();
-    auto layerB = createLayer("relative-child", layerBMetadata);
-    layerB->setRelativeLayer(layerAHandle, 1);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerB);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layerA->getLayerSnapshot()->relativeLayerMetadata, LayerMetadata{});
-    EXPECT_EQ(layerB->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
-}
-
-// Test that snapshot relative layer metadata is set correctly when a layer is interleaved within
-// two other layers.
-//
-// Layer
-//      A
-//     / \
-//    B   D
-//   /
-//  C
-//
-// Z-order Relatives
-//    B <- D <- C
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesRelativeMetadataInterleaved) {
-    auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_OWNER_UID, 1).build();
-    auto layerA = createLayer("layer-a", layerAMetadata);
-    auto layerBMetadata = LayerMetadataBuilder()
-                                  .setInt32(METADATA_TASK_ID, 2)
-                                  .setInt32(METADATA_OWNER_PID, 3)
-                                  .build();
-    auto layerB = createLayer("layer-b", layerBMetadata);
-    auto layerBHandle = layerB->getHandle();
-    LayerMetadata layerCMetadata;
-    auto layerC = createLayer("layer-c", layerCMetadata);
-    auto layerDMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 4).build();
-    auto layerD = createLayer("layer-d", layerDMetadata);
-    auto layerDHandle = layerD->getHandle();
-    layerB->addChild(layerC);
-    layerA->addChild(layerB);
-    layerA->addChild(layerD);
-    layerC->setRelativeLayer(layerDHandle, 1);
-    layerD->setRelativeLayer(layerBHandle, 1);
-    layerA->commitChildList();
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    auto expectedLayerDRelativeMetadata =
-            LayerMetadataBuilder()
-                    // From layer A, parent of relative parent
-                    .setInt32(METADATA_OWNER_UID, 1)
-                    // From layer B, relative parent
-                    .setInt32(METADATA_TASK_ID, 2)
-                    .setInt32(METADATA_OWNER_PID, 3)
-                    // added by layer creation args
-                    .setInt32(gui::METADATA_CALLING_UID,
-                              layerDMetadata.getInt32(gui::METADATA_CALLING_UID, 0))
-                    .build();
-    EXPECT_EQ(layerD->getLayerSnapshot()->relativeLayerMetadata, expectedLayerDRelativeMetadata);
-    auto expectedLayerCRelativeMetadata =
-            LayerMetadataBuilder()
-                    // From layer A, parent of relative parent
-                    .setInt32(METADATA_OWNER_UID, 1)
-                    // From layer B, relative parent of relative parent
-                    .setInt32(METADATA_OWNER_PID, 3)
-                    // From layer D, relative parent
-                    .setInt32(METADATA_TASK_ID, 4)
-                    // added by layer creation args
-                    .setInt32(gui::METADATA_CALLING_UID,
-                              layerDMetadata.getInt32(gui::METADATA_CALLING_UID, 0))
-                    .build();
-    EXPECT_EQ(layerC->getLayerSnapshot()->relativeLayerMetadata, expectedLayerCRelativeMetadata);
-}
-
-TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest,
-       updatesRelativeMetadataMultipleRelativeChildren) {
-    auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_OWNER_UID, 1).build();
-    auto layerA = createLayer("layer-a", layerAMetadata);
-    auto layerAHandle = layerA->getHandle();
-    LayerMetadata layerBMetadata;
-    auto layerB = createLayer("layer-b", layerBMetadata);
-    LayerMetadata layerCMetadata;
-    auto layerC = createLayer("layer-c", layerCMetadata);
-    layerB->setRelativeLayer(layerAHandle, 1);
-    layerC->setRelativeLayer(layerAHandle, 2);
-    layerA->commitChildList();
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerB);
-    mFlinger.mutableDrawingState().layersSortedByZ.add(layerC);
-
-    mFlinger.updateLayerMetadataSnapshot();
-
-    EXPECT_EQ(layerA->getLayerSnapshot()->relativeLayerMetadata, LayerMetadata{});
-    EXPECT_EQ(layerB->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
-    EXPECT_EQ(layerC->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
-}
-
-} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index f063809..df16b2e 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -62,7 +62,7 @@
     }
 
     MOCK_METHOD(void, scheduleConfigure, (), (override));
-    MOCK_METHOD(void, scheduleFrame, (), (override));
+    MOCK_METHOD(void, scheduleFrame, (Duration), (override));
     MOCK_METHOD(void, postMessage, (sp<MessageHandler>&&), (override));
 
     void doFrameSignal(ICompositor& compositor, VsyncId vsyncId) {
@@ -176,6 +176,11 @@
         mPolicy.idleTimer = globalSignals.idle ? TimerState::Expired : TimerState::Reset;
     }
 
+    using Scheduler::TimerState;
+
+    using Scheduler::idleTimerCallback;
+    using Scheduler::touchTimerCallback;
+
     void setContentRequirements(std::vector<RefreshRateSelector::LayerRequirement> layers) {
         std::lock_guard<std::mutex> lock(mPolicyLock);
         mPolicy.contentRequirements = std::move(layers);
@@ -188,15 +193,7 @@
         return Scheduler::chooseDisplayModes();
     }
 
-    void dispatchCachedReportedMode() {
-        std::lock_guard<std::mutex> lock(mPolicyLock);
-        Scheduler::dispatchCachedReportedMode();
-    }
-
-    void clearCachedReportedMode() {
-        std::lock_guard<std::mutex> lock(mPolicyLock);
-        mPolicy.cachedModeChangedParams.reset();
-    }
+    using Scheduler::onDisplayModeChanged;
 
     void setInitialHwVsyncEnabled(PhysicalDisplayId id, bool enabled) {
         auto schedule = getVsyncSchedule(id);
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 4197cbd..a6a2758 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -326,9 +326,13 @@
 
     auto& mutableStateLock() { return mFlinger->mStateLock; }
 
-    static auto findOutputLayerForDisplay(const sp<Layer>& layer,
-                                          const sp<const DisplayDevice>& display) {
-        return layer->findOutputLayerForDisplay(display.get());
+    compositionengine::OutputLayer* findOutputLayerForDisplay(
+            uint32_t layerId, const sp<const DisplayDevice>& display) {
+        ftl::FakeGuard guard(kMainThreadContext);
+        if (mFlinger->mLegacyLayers.find(layerId) == mFlinger->mLegacyLayers.end()) {
+            return nullptr;
+        }
+        return mFlinger->mLegacyLayers[layerId]->findOutputLayerForDisplay(display.get());
     }
 
     static void setLayerSidebandStream(const sp<Layer>& layer,
@@ -340,17 +344,14 @@
 
     void setLayerCompositionType(const sp<Layer>& layer,
                                  aidl::android::hardware::graphics::composer3::Composition type) {
-        auto outputLayer = findOutputLayerForDisplay(layer, mFlinger->getDefaultDisplayDevice());
+        auto outputLayer = findOutputLayerForDisplay(static_cast<uint32_t>(layer->sequence),
+                                                     mFlinger->getDefaultDisplayDevice());
         LOG_ALWAYS_FATAL_IF(!outputLayer);
         auto& state = outputLayer->editState();
         LOG_ALWAYS_FATAL_IF(!outputLayer->getState().hwc);
         (*state.hwc).hwcCompositionType = type;
     }
 
-    static void setLayerPotentialCursor(const sp<Layer>& layer, bool potentialCursor) {
-        layer->mPotentialCursor = potentialCursor;
-    }
-
     static void setLayerDrawingParent(const sp<Layer>& layer, const sp<Layer>& drawingParent) {
         layer->mDrawingParent = drawingParent;
     }
@@ -395,7 +396,7 @@
             targets.try_emplace(id, &frameTargeter.target());
             targeters.try_emplace(id, &frameTargeter);
         }
-
+        mFlinger->setTransactionFlags(eTransactionFlushNeeded);
         mFlinger->commit(displayId, targets);
 
         if (composite) {
@@ -505,10 +506,9 @@
                                           captureResults, displayState, layers, layerFEs);
     }
 
-    auto traverseLayersInLayerStack(ui::LayerStack layerStack, int32_t uid,
-                                    std::unordered_set<uint32_t> excludeLayerIds,
-                                    const LayerVector::Visitor& visitor) {
-        return mFlinger->traverseLayersInLayerStack(layerStack, uid, excludeLayerIds, visitor);
+    auto getLayerSnapshotsForScreenshotsFn(ui::LayerStack layerStack, uint32_t uid) {
+        return mFlinger->getLayerSnapshotsForScreenshots(layerStack, uid,
+                                                         std::unordered_set<uint32_t>{});
     }
 
     auto getDisplayNativePrimaries(const sp<IBinder>& displayToken,
@@ -528,7 +528,7 @@
 
     auto setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, Vector<ComposerState>& states,
-            const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
+            Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
             const InputWindowCommands& inputWindowCommands, int64_t desiredPresentTime,
             bool isAutoTimestamp, const std::vector<client_cache_t>& uncacheBuffers,
             bool hasListenerCallbacks, std::vector<ListenerCallbacks>& listenerCallbacks,
@@ -584,8 +584,6 @@
         return mFlinger->mirrorLayer(args, mirrorFromHandle, outResult);
     }
 
-    void updateLayerMetadataSnapshot() { mFlinger->updateLayerMetadataSnapshot(); }
-
     void getDynamicDisplayInfoFromToken(const sp<IBinder>& displayToken,
                                         ui::DynamicDisplayInfo* dynamicDisplayInfo) {
         mFlinger->getDynamicDisplayInfoFromToken(displayToken, dynamicDisplayInfo);
@@ -620,6 +618,18 @@
         mFlinger->mNewLayers.emplace_back(std::move(layer));
     }
 
+    // Used to add a layer before updateLayerSnapshots is called.
+    // Must have transactionsFlushed enabled for the new layer to be updated.
+    void addLayer(uint32_t layerId) {
+        std::scoped_lock<std::mutex> lock(mFlinger->mCreatedLayersLock);
+        LayerCreationArgs args(std::make_optional(layerId));
+        args.flinger = this->mFlinger.get();
+        auto layer = std::make_unique<frontend::RequestedLayerState>(args);
+        auto legacyLayer = sp<Layer>::make(args);
+        injectLegacyLayer(legacyLayer);
+        mFlinger->mNewLayers.emplace_back(std::move(layer));
+    }
+
     /* ------------------------------------------------------------------------
      * Read-only access to private data to assert post-conditions.
      */
@@ -637,12 +647,24 @@
     void injectLegacyLayer(sp<Layer> layer) {
         FTL_FAKE_GUARD(kMainThreadContext,
                        mFlinger->mLegacyLayers[static_cast<uint32_t>(layer->sequence)] = layer);
-    };
+    }
 
     void releaseLegacyLayer(uint32_t sequence) {
         FTL_FAKE_GUARD(kMainThreadContext, mFlinger->mLegacyLayers.erase(sequence));
+    }
+
+    auto getLegacyLayer(uint32_t layerId) {
+        ftl::FakeGuard guard(kMainThreadContext);
+        return mFlinger->mLegacyLayers[layerId];
     };
 
+    void destroyAllLayerHandles() {
+        ftl::FakeGuard guard(kMainThreadContext);
+        for (auto [layerId, legacyLayer] : mFlinger->mLegacyLayers) {
+            mFlinger->onHandleDestroyed(nullptr, legacyLayer, layerId);
+        }
+    }
+
     auto setLayerHistoryDisplayArea(uint32_t displayArea) {
         return mFlinger->mScheduler->onActiveDisplayAreaChanged(displayArea);
     };
@@ -709,10 +731,6 @@
         return mFlinger->initTransactionTraceWriter();
     }
 
-    // Needed since mLayerLifecycleManagerEnabled is false by default and must
-    // be enabled for tests to go through the new front end path.
-    void enableLayerLifecycleManager() { mFlinger->mLayerLifecycleManagerEnabled = true; }
-
     void notifyExpectedPresentIfRequired(PhysicalDisplayId displayId, Period vsyncPeriod,
                                          TimePoint expectedPresentTime, Fps frameInterval,
                                          std::optional<Period> timeoutOpt) {
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index 7fb9247..fab1f6d 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -17,6 +17,7 @@
 #undef LOG_TAG
 #define LOG_TAG "TransactionApplicationTest"
 
+#include <binder/Binder.h>
 #include <common/test/FlagUtils.h>
 #include <compositionengine/Display.h>
 #include <compositionengine/mock/DisplaySurface.h>
@@ -26,10 +27,10 @@
 #include <gui/SurfaceComposerClient.h>
 #include <gui/fake/BufferData.h>
 #include <log/log.h>
+#include <renderengine/mock/RenderEngine.h>
 #include <ui/MockFence.h>
 #include <utils/String8.h>
 #include <vector>
-#include <binder/Binder.h>
 
 #include "FrontEnd/TransactionHandler.h"
 #include "TestableSurfaceFlinger.h"
@@ -55,6 +56,7 @@
 
         mFlinger.setupComposer(std::make_unique<Hwc2::mock::Composer>());
         mFlinger.setupMockScheduler();
+        mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
         mFlinger.flinger()->addTransactionReadyFilters();
     }
 
@@ -65,6 +67,7 @@
     }
 
     TestableSurfaceFlinger mFlinger;
+    renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
 
     struct TransactionInfo {
         Vector<ComposerState> states;
@@ -102,7 +105,7 @@
 
     void NotPlacedOnTransactionQueue(uint32_t flags) {
         ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
         TransactionInfo transaction;
         setupSingle(transaction, flags,
                     /*desiredPresentTime*/ systemTime(), /*isAutoTimestamp*/ true,
@@ -126,7 +129,7 @@
 
     void PlaceOnTransactionQueue(uint32_t flags) {
         ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
         // first check will see desired present time has not passed,
         // but afterwards it will look like the desired present time has passed
@@ -152,7 +155,7 @@
     void BlockedByPriorTransaction(uint32_t flags) {
         ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
         nsecs_t time = systemTime();
-        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(2);
+        EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(2);
 
         // transaction that should go on the pending thread
         TransactionInfo transactionA;
@@ -214,7 +217,7 @@
 
 TEST_F(TransactionApplicationTest, AddToPendingQueue) {
     ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     TransactionInfo transactionA; // transaction to go on pending queue
     setupSingle(transactionA, /*flags*/ 0, /*desiredPresentTime*/ s2ns(1), false,
@@ -235,7 +238,7 @@
 
 TEST_F(TransactionApplicationTest, Flush_RemovesFromQueue) {
     ASSERT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
+    EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
 
     TransactionInfo transactionA; // transaction to go on pending queue
     setupSingle(transactionA, /*flags*/ 0, /*desiredPresentTime*/ s2ns(1), false,
@@ -323,15 +326,17 @@
     transaction1.states[0].state.bufferData =
             std::make_shared<fake::BufferData>(/* bufferId */ 1, /* width */ 1, /* height */ 1,
                                                /* pixelFormat */ 0, /* outUsage */ 0);
+    mFlinger.addLayer(1);
+    bool out;
+    mFlinger.updateLayerSnapshots(VsyncId{1}, 0, /* transactionsFlushed */ true, out);
     transaction1.states[0].externalTexture =
             std::make_shared<FakeExternalTexture>(*transaction1.states[0].state.bufferData);
-    transaction1.states[0].state.surface =
-            sp<Layer>::make(LayerCreationArgs(mFlinger.flinger(), nullptr, "TestLayer", 0, {}))
-                    ->getHandle();
+    transaction1.states[0].state.surface = mFlinger.getLegacyLayer(1)->getHandle();
     auto fence = sp<mock::MockFence>::make();
     EXPECT_CALL(*fence, getStatus()).WillRepeatedly(Return(Fence::Status::Unsignaled));
     transaction1.states[0].state.bufferData->acquireFence = std::move(fence);
     transaction1.states[0].state.bufferData->flags = BufferData::BufferDataChange::fenceChanged;
+    transaction1.states[0].layerId = 1;
     transaction1.isAutoTimestamp = true;
 
     // Transaction 2 should be ready to be applied.
@@ -361,8 +366,7 @@
         }
         mFlinger.getPendingTransactionQueue().clear();
         mFlinger.commitTransactionsLocked(eTransactionMask);
-        mFlinger.mutableCurrentState().layersSortedByZ.clear();
-        mFlinger.mutableDrawingState().layersSortedByZ.clear();
+        mFlinger.destroyAllLayerHandles();
     }
 
     static sp<Fence> fence(Fence::Status status) {
@@ -371,8 +375,7 @@
         return fence;
     }
 
-    ComposerState createComposerState(int layerId, sp<Fence> fence, uint64_t what,
-                                      std::optional<sp<IBinder>> layerHandle = std::nullopt) {
+    ComposerState createComposerState(int layerId, sp<Fence> fence, uint64_t what) {
         ComposerState state;
         state.state.bufferData =
                 std::make_shared<fake::BufferData>(/* bufferId */ 123L, /* width */ 1,
@@ -380,9 +383,6 @@
                                                    /* outUsage */ 0);
         state.state.bufferData->acquireFence = std::move(fence);
         state.state.layerId = layerId;
-        state.state.surface = layerHandle.value_or(
-                sp<Layer>::make(LayerCreationArgs(mFlinger.flinger(), nullptr, "TestLayer", 0, {}))
-                        ->getHandle());
         state.state.bufferData->flags = BufferData::BufferDataChange::fenceChanged;
 
         state.state.what = what;
@@ -418,6 +418,19 @@
                               size_t expectedTransactionsPending) {
         EXPECT_TRUE(mFlinger.getTransactionQueue().isEmpty());
         EXPECT_EQ(0u, mFlinger.getPendingTransactionQueue().size());
+        std::unordered_set<uint32_t> createdLayers;
+        for (auto transaction : transactions) {
+            for (auto& state : transaction.states) {
+                auto layerId = static_cast<uint32_t>(state.state.layerId);
+                if (createdLayers.find(layerId) == createdLayers.end()) {
+                    mFlinger.addLayer(layerId);
+                    createdLayers.insert(layerId);
+                }
+            }
+        }
+        bool unused;
+        bool mustComposite = mFlinger.updateLayerSnapshots(VsyncId{1}, /*frameTimeNs=*/0,
+                                                           /*transactionsFlushed=*/true, unused);
 
         for (auto transaction : transactions) {
             std::vector<ResolvedComposerState> resolvedStates;
@@ -427,6 +440,9 @@
                 resolvedState.state = std::move(state.state);
                 resolvedState.externalTexture =
                         std::make_shared<FakeExternalTexture>(*resolvedState.state.bufferData);
+                resolvedState.layerId = static_cast<uint32_t>(state.state.layerId);
+                resolvedState.state.surface =
+                        mFlinger.getLegacyLayer(resolvedState.layerId)->getHandle();
                 resolvedStates.emplace_back(resolvedState);
             }
 
@@ -458,9 +474,8 @@
 TEST_F(LatchUnsignaledAutoSingleLayerTest, Flush_RemovesSingleSignaledFromTheQueue) {
     const sp<IBinder> kApplyToken =
             IInterface::asBinder(TransactionCompletedListener::getIInstance());
-    const auto kLayerId = 1;
+    const auto kLayerId = 10;
     const auto kExpectedTransactionsPending = 0u;
-
     const auto signaledTransaction =
             createTransactionInfo(kApplyToken,
                                   {createComposerState(kLayerId, fence(Fence::Status::Signaled),
@@ -773,7 +788,7 @@
 TEST_F(LatchUnsignaledDisabledTest, Flush_RemovesSignaledFromTheQueue) {
     const sp<IBinder> kApplyToken =
             IInterface::asBinder(TransactionCompletedListener::getIInstance());
-    const auto kLayerId = 1;
+    const auto kLayerId = 10;
     const auto kExpectedTransactionsPending = 0u;
 
     const auto signaledTransaction =
diff --git a/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp b/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
index 85b61f8..abfab9a 100644
--- a/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionFrameTracerTest.cpp
@@ -94,7 +94,7 @@
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
         layer->setBuffer(externalTexture, bufferData, postTime, /*desiredPresentTime*/ 30, false,
-                         FrameTimelineInfo{});
+                         FrameTimelineInfo{}, gui::GameMode::Unsupported);
 
         commitTransaction(layer.get());
         nsecs_t latchTime = 25;
@@ -112,7 +112,8 @@
         EXPECT_CALL(*mFlinger.getFrameTracer(),
                     traceFence(layerId, bufferId, frameNumber, presentFence,
                                FrameTracer::FrameEvent::PRESENT_FENCE, /*startTime*/ 0));
-        layer->onCompositionPresented(nullptr, glDoneFence, presentFence, compositorTiming);
+        layer->onCompositionPresented(nullptr, glDoneFence, presentFence, compositorTiming,
+                                      gui::GameMode::Unsupported);
     }
 };
 
diff --git a/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp b/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
index 46733b9..9a68d75 100644
--- a/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionSurfaceFrameTest.cpp
@@ -72,7 +72,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_TRUE(layer->mDrawingState.bufferSurfaceFrameTX == nullptr);
         const auto surfaceFrame = layer->mDrawingState.bufferlessSurfaceFramesTX.at(/*token*/ 1);
@@ -99,7 +100,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         acquireFence->signalForTest(12);
 
         commitTransaction(layer.get());
@@ -134,7 +136,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto droppedSurfaceFrame = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -151,7 +154,8 @@
                                                          2ULL /* bufferId */,
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         nsecs_t end = systemTime();
         acquireFence2->signalForTest(12);
 
@@ -180,7 +184,8 @@
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
 
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
 
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
@@ -197,7 +202,8 @@
                                                          1ULL /* bufferId */,
                                                          HAL_PIXEL_FORMAT_RGBA_8888,
                                                          0ULL /*usage*/);
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         acquireFence->signalForTest(12);
 
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
@@ -232,11 +238,13 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
 
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
     }
@@ -246,7 +254,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferlessSurfaceFrame1 =
@@ -255,7 +264,8 @@
         FrameTimelineInfo ftInfo2;
         ftInfo2.vsyncId = 4;
         ftInfo2.inputEventId = 0;
-        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10);
+        layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10,
+                                                             gui::GameMode::Unsupported);
         EXPECT_EQ(2u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_EQ(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferlessSurfaceFrame2 = layer->mDrawingState.bufferlessSurfaceFramesTX[4];
@@ -275,7 +285,8 @@
         FrameTimelineInfo ftInfo3;
         ftInfo3.vsyncId = 3;
         ftInfo3.inputEventId = 0;
-        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo3);
+        layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo3,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(2u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto bufferSurfaceFrameTX = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -302,58 +313,6 @@
         EXPECT_EQ(PresentState::Presented, bufferSurfaceFrameTX->getPresentState());
     }
 
-    void PendingSurfaceFramesRemovedAfterClassification() {
-        sp<Layer> layer = createLayer();
-
-        sp<Fence> fence1(sp<Fence>::make());
-        auto acquireFence1 = fenceFactory.createFenceTimeForTest(fence1);
-        BufferData bufferData;
-        bufferData.acquireFence = fence1;
-        bufferData.frameNumber = 1;
-        bufferData.flags |= BufferData::BufferDataChange::fenceChanged;
-        bufferData.flags |= BufferData::BufferDataChange::frameNumberChanged;
-        std::shared_ptr<renderengine::ExternalTexture> externalTexture1 = std::make_shared<
-                renderengine::mock::FakeExternalTexture>(1U /*width*/, 1U /*height*/,
-                                                         1ULL /* bufferId */,
-                                                         HAL_PIXEL_FORMAT_RGBA_8888,
-                                                         0ULL /*usage*/);
-        FrameTimelineInfo ftInfo;
-        ftInfo.vsyncId = 1;
-        ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
-        ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
-        const auto droppedSurfaceFrame = layer->mDrawingState.bufferSurfaceFrameTX;
-
-        sp<Fence> fence2(sp<Fence>::make());
-        auto acquireFence2 = fenceFactory.createFenceTimeForTest(fence2);
-        bufferData.acquireFence = fence2;
-        bufferData.frameNumber = 1;
-        bufferData.flags |= BufferData::BufferDataChange::fenceChanged;
-        bufferData.flags |= BufferData::BufferDataChange::frameNumberChanged;
-        std::shared_ptr<renderengine::ExternalTexture> externalTexture2 = std::make_shared<
-                renderengine::mock::FakeExternalTexture>(1U /*width*/, 1U /*height*/,
-                                                         1ULL /* bufferId */,
-                                                         HAL_PIXEL_FORMAT_RGBA_8888,
-                                                         0ULL /*usage*/);
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfo);
-        acquireFence2->signalForTest(12);
-
-        ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
-        auto presentedSurfaceFrame = layer->mDrawingState.bufferSurfaceFrameTX;
-
-        commitTransaction(layer.get());
-        layer->updateTexImage(15);
-
-        // Both the droppedSurfaceFrame and presentedSurfaceFrame should be in
-        // pendingJankClassifications.
-        EXPECT_EQ(2u, layer->mPendingJankClassifications.size());
-        presentedSurfaceFrame->onPresent(20, JankType::None, 90_Hz, 90_Hz,
-                                         /*displayDeadlineDelta*/ 0, /*displayPresentDelta*/ 0);
-        layer->releasePendingBuffer(25);
-
-        EXPECT_EQ(0u, layer->mPendingJankClassifications.size());
-    }
-
     void BufferSurfaceFrame_ReplaceValidTokenBufferWithInvalidTokenBuffer() {
         sp<Layer> layer = createLayer();
 
@@ -372,7 +331,8 @@
         FrameTimelineInfo ftInfo;
         ftInfo.vsyncId = 1;
         ftInfo.inputEventId = 0;
-        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo);
+        layer->setBuffer(externalTexture1, bufferData, 10, 20, false, ftInfo,
+                         gui::GameMode::Unsupported);
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
         const auto droppedSurfaceFrame1 = layer->mDrawingState.bufferSurfaceFrameTX;
@@ -392,7 +352,8 @@
         FrameTimelineInfo ftInfoInv;
         ftInfoInv.vsyncId = FrameTimelineInfo::INVALID_VSYNC_ID;
         ftInfoInv.inputEventId = 0;
-        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfoInv);
+        layer->setBuffer(externalTexture2, bufferData, 10, 20, false, ftInfoInv,
+                         gui::GameMode::Unsupported);
         auto dropEndTime1 = systemTime();
         EXPECT_EQ(0u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
         ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
@@ -413,7 +374,8 @@
         FrameTimelineInfo ftInfo2;
         ftInfo2.vsyncId = 2;
         ftInfo2.inputEventId = 0;
-        layer->setBuffer(externalTexture3, bufferData, 10, 20, false, ftInfo2);
+        layer->setBuffer(externalTexture3, bufferData, 10, 20, false, ftInfo2,
+                         gui::GameMode::Unsupported);
         auto dropEndTime2 = systemTime();
         acquireFence3->signalForTest(12);
 
@@ -445,8 +407,7 @@
 
     void MultipleCommitsBeforeLatch() {
         sp<Layer> layer = createLayer();
-        uint32_t surfaceFramesPendingClassification = 0;
-        std::vector<std::shared_ptr<frametimeline::SurfaceFrame>> bufferlessSurfaceFrames;
+        std::vector<std::shared_ptr<frametimeline::SurfaceFrame>> surfaceFrames;
         for (int i = 0; i < 10; i += 2) {
             sp<Fence> fence(sp<Fence>::make());
             BufferData bufferData;
@@ -462,58 +423,52 @@
             FrameTimelineInfo ftInfo;
             ftInfo.vsyncId = 1;
             ftInfo.inputEventId = 0;
-            layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo);
+            layer->setBuffer(externalTexture, bufferData, 10, 20, false, ftInfo,
+                             gui::GameMode::Unsupported);
             FrameTimelineInfo ftInfo2;
             ftInfo2.vsyncId = 2;
             ftInfo2.inputEventId = 0;
-            layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10);
+            layer->setFrameTimelineVsyncForBufferlessTransaction(ftInfo2, 10,
+                                                                 gui::GameMode::Unsupported);
             ASSERT_NE(nullptr, layer->mDrawingState.bufferSurfaceFrameTX);
             EXPECT_EQ(1u, layer->mDrawingState.bufferlessSurfaceFramesTX.size());
-            auto& bufferlessSurfaceFrame =
-                    layer->mDrawingState.bufferlessSurfaceFramesTX.at(/*vsyncId*/ 2);
-            bufferlessSurfaceFrames.push_back(bufferlessSurfaceFrame);
+
+            surfaceFrames.push_back(layer->mDrawingState.bufferSurfaceFrameTX);
+            surfaceFrames.push_back(
+                    layer->mDrawingState.bufferlessSurfaceFramesTX.at(/*vsyncId*/ 2));
 
             commitTransaction(layer.get());
-            surfaceFramesPendingClassification += 2;
-            EXPECT_EQ(surfaceFramesPendingClassification,
-                      layer->mPendingJankClassifications.size());
         }
 
         auto presentedBufferSurfaceFrame = layer->mDrawingState.bufferSurfaceFrameTX;
         layer->updateTexImage(15);
         // BufferlessSurfaceFrames are immediately set to presented and added to the DisplayFrame.
         // Since we don't have access to DisplayFrame here, trigger an onPresent directly.
-        for (auto& surfaceFrame : bufferlessSurfaceFrames) {
-            surfaceFrame->onPresent(20, JankType::None, 90_Hz, 90_Hz,
-                                    /*displayDeadlineDelta*/ 0, /*displayPresentDelta*/ 0);
+        // The odd indices are the bufferless frames.
+        for (uint32_t i = 1; i < 10; i += 2) {
+            surfaceFrames[i]->onPresent(20, JankType::None, 90_Hz, 90_Hz,
+                                        /*displayDeadlineDelta*/ 0, /*displayPresentDelta*/ 0);
         }
         presentedBufferSurfaceFrame->onPresent(20, JankType::None, 90_Hz, 90_Hz,
                                                /*displayDeadlineDelta*/ 0,
                                                /*displayPresentDelta*/ 0);
 
-        // There should be 10 bufferlessSurfaceFrames and 1 bufferSurfaceFrame
-        ASSERT_EQ(10u, surfaceFramesPendingClassification);
-        ASSERT_EQ(surfaceFramesPendingClassification, layer->mPendingJankClassifications.size());
-
         // For the frames upto 8, the bufferSurfaceFrame should have been dropped while the
         // bufferlessSurfaceFrame presented
         for (uint32_t i = 0; i < 8; i += 2) {
-            auto& bufferSurfaceFrame = layer->mPendingJankClassifications[i];
-            auto& bufferlessSurfaceFrame = layer->mPendingJankClassifications[i + 1];
+            auto bufferSurfaceFrame = surfaceFrames[i];
+            auto bufferlessSurfaceFrame = surfaceFrames[i + 1];
             EXPECT_EQ(bufferSurfaceFrame->getPresentState(), PresentState::Dropped);
             EXPECT_EQ(bufferlessSurfaceFrame->getPresentState(), PresentState::Presented);
         }
         {
-            auto& bufferSurfaceFrame = layer->mPendingJankClassifications[8u];
-            auto& bufferlessSurfaceFrame = layer->mPendingJankClassifications[9u];
+            auto bufferSurfaceFrame = surfaceFrames[8];
+            auto bufferlessSurfaceFrame = surfaceFrames[9];
             EXPECT_EQ(bufferSurfaceFrame->getPresentState(), PresentState::Presented);
             EXPECT_EQ(bufferlessSurfaceFrame->getPresentState(), PresentState::Presented);
         }
 
         layer->releasePendingBuffer(25);
-
-        // There shouldn't be any pending classifications. Everything should have been cleared.
-        EXPECT_EQ(0u, layer->mPendingJankClassifications.size());
     }
 };
 
@@ -541,10 +496,6 @@
     MultipleSurfaceFramesPresentedTogether();
 }
 
-TEST_F(TransactionSurfaceFrameTest, PendingSurfaceFramesRemovedAfterClassification) {
-    PendingSurfaceFramesRemovedAfterClassification();
-}
-
 TEST_F(TransactionSurfaceFrameTest,
        BufferSurfaceFrame_ReplaceValidTokenBufferWithInvalidTokenBuffer) {
     BufferSurfaceFrame_ReplaceValidTokenBufferWithInvalidTokenBuffer();
diff --git a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
index 1cf14ae..9f6065b 100644
--- a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
@@ -127,7 +127,7 @@
     sp<NativeHandle> stream =
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
-    layer->setSidebandStream(stream, FrameTimelineInfo{}, 20);
+    layer->setSidebandStream(stream, FrameTimelineInfo{}, 20, gui::GameMode::Unsupported);
     mFlinger.mutableCurrentState().layersSortedByZ.add(layer);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     mTunnelModeEnabledReporter->addListener(mTunnelModeEnabledListener);
@@ -151,7 +151,8 @@
     sp<NativeHandle> stream =
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
-    layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20);
+    layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20,
+                                               gui::GameMode::Unsupported);
 
     mFlinger.mutableCurrentState().layersSortedByZ.add(simpleLayer);
     mFlinger.mutableCurrentState().layersSortedByZ.add(layerWithSidebandStream);
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
index 3b09554..b63f299 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
@@ -19,6 +19,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+#include <scheduler/FrameTime.h>
 #include <scheduler/Timer.h>
 
 #include "Scheduler/VSyncDispatchTimerQueue.h"
@@ -51,7 +52,7 @@
     bool isVSyncInPhase(nsecs_t, Fps) final { return false; }
     void setDisplayModePtr(ftl::NonNull<DisplayModePtr>) final {}
     void setRenderRate(Fps, bool) final {}
-    void onFrameBegin(TimePoint, TimePoint) final {}
+    void onFrameBegin(TimePoint, scheduler::FrameTime) final {}
     void onFrameMissed(TimePoint) final {}
     void dump(std::string&) const final {}
     bool isCurrentMode(const ftl::NonNull<DisplayModePtr>&) const final { return false; };
diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index 5109ea6..7c678bd 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
@@ -673,6 +673,36 @@
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(mNow + 5100), Eq(mNow + 6 * mPeriod));
 }
 
+TEST_F(VSyncPredictorTest, setRenderRateWhenRenderRateGoesDown) {
+    SET_FLAG_FOR_TEST(flags::vrr_config, true);
+    SET_FLAG_FOR_TEST(flags::vrr_bugfix_24q4, true);
+
+    const int32_t kGroup = 0;
+    const auto kResolution = ui::Size(1920, 1080);
+    const auto vsyncRate = Fps::fromPeriodNsecs(500);
+    const auto minFrameRate = Fps::fromPeriodNsecs(1000);
+    hal::VrrConfig vrrConfig;
+    vrrConfig.minFrameIntervalNs = minFrameRate.getPeriodNsecs();
+    const ftl::NonNull<DisplayModePtr> kMode =
+            ftl::as_non_null(createDisplayModeBuilder(DisplayModeId(0), vsyncRate, kGroup,
+                                                      kResolution, DEFAULT_DISPLAY_ID)
+                                     .setVrrConfig(std::move(vrrConfig))
+                                     .build());
+
+    VSyncPredictor vrrTracker{std::make_unique<ClockWrapper>(mClock), kMode, kHistorySize,
+                              kMinimumSamplesForPrediction, kOutlierTolerancePercent};
+
+    Fps frameRate = Fps::fromPeriodNsecs(1000);
+    vrrTracker.setRenderRate(frameRate, /*applyImmediately*/ false);
+    vrrTracker.addVsyncTimestamp(0);
+    EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
+    EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1000, 1000));
+
+    frameRate = Fps::fromPeriodNsecs(3000);
+    vrrTracker.setRenderRate(frameRate, /*applyImmediately*/ false);
+    EXPECT_TRUE(vrrTracker.isVSyncInPhase(2000, frameRate));
+}
+
 TEST_F(VSyncPredictorTest, setRenderRateHighIsAppliedImmediately) {
     SET_FLAG_FOR_TEST(flags::vrr_config, true);
 
@@ -871,17 +901,20 @@
     EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
     EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1000));
 
-    vrrTracker.onFrameBegin(TimePoint::fromNs(2000), TimePoint::fromNs(1500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(2000),
+                            {TimePoint::fromNs(1500), TimePoint::fromNs(1500)});
     EXPECT_EQ(3500, vrrTracker.nextAnticipatedVSyncTimeFrom(2000, 2000));
     EXPECT_EQ(4500, vrrTracker.nextAnticipatedVSyncTimeFrom(3500, 3500));
 
     // Miss when starting 4500 and expect the next vsync will be at 5000 (next one)
-    vrrTracker.onFrameBegin(TimePoint::fromNs(3500), TimePoint::fromNs(2500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(3500),
+                            {TimePoint::fromNs(2500), TimePoint::fromNs(2500)});
     vrrTracker.onFrameMissed(TimePoint::fromNs(4500));
     EXPECT_EQ(5000, vrrTracker.nextAnticipatedVSyncTimeFrom(4500, 4500));
     EXPECT_EQ(6000, vrrTracker.nextAnticipatedVSyncTimeFrom(5000, 5000));
 
-    vrrTracker.onFrameBegin(TimePoint::fromNs(7000), TimePoint::fromNs(6500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(7000),
+                            {TimePoint::fromNs(6500), TimePoint::fromNs(6500)});
     EXPECT_EQ(10500, vrrTracker.nextAnticipatedVSyncTimeFrom(9000, 7000));
 }
 
@@ -913,7 +946,7 @@
 
     // SF starts to catch up
     EXPECT_EQ(3000, vrrTracker.nextAnticipatedVSyncTimeFrom(2700));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(3000), TimePoint::fromNs(0));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(3000), {TimePoint::fromNs(0), TimePoint::fromNs(0)});
 
     // SF misses last frame (3000) and observes that when committing (4000)
     EXPECT_EQ(6000, vrrTracker.nextAnticipatedVSyncTimeFrom(5000, 5000));
@@ -922,17 +955,20 @@
 
     // SF wakes up again instead of the (4000) missed frame
     EXPECT_EQ(4500, vrrTracker.nextAnticipatedVSyncTimeFrom(4000, 4000));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(4500), TimePoint::fromNs(4500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(4500),
+                            {TimePoint::fromNs(4500), TimePoint::fromNs(4500)});
 
     // Timeline shifted. The app needs to get the next frame at (7500) as its last frame (6500) will
     // be presented at (7500)
     EXPECT_EQ(7500, vrrTracker.nextAnticipatedVSyncTimeFrom(6000, 6000));
     EXPECT_EQ(5500, vrrTracker.nextAnticipatedVSyncTimeFrom(4500, 4500));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(5500), TimePoint::fromNs(4500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(5500),
+                            {TimePoint::fromNs(4500), TimePoint::fromNs(4500)});
 
     EXPECT_EQ(8500, vrrTracker.nextAnticipatedVSyncTimeFrom(7500, 7500));
     EXPECT_EQ(6500, vrrTracker.nextAnticipatedVSyncTimeFrom(5500, 5500));
-    vrrTracker.onFrameBegin(TimePoint::fromNs(6500), TimePoint::fromNs(5500));
+    vrrTracker.onFrameBegin(TimePoint::fromNs(6500),
+                            {TimePoint::fromNs(5500), TimePoint::fromNs(5500)});
 }
 
 TEST_F(VSyncPredictorTest, renderRateIsPreservedForCommittedVsyncs) {
@@ -990,6 +1026,65 @@
     EXPECT_THAT(tracker.nextAnticipatedVSyncTimeFrom(9001), Eq(13000));
 }
 
+TEST_F(VSyncPredictorTest, timelineNotAdjustedForEarlyPresent) {
+    SET_FLAG_FOR_TEST(flags::vrr_config, true);
+
+    const int32_t kGroup = 0;
+    const auto kResolution = ui::Size(1920, 1080);
+    const auto refreshRate = Fps::fromPeriodNsecs(500);
+    const auto minFrameRate = Fps::fromPeriodNsecs(1000);
+    hal::VrrConfig vrrConfig;
+    vrrConfig.minFrameIntervalNs = minFrameRate.getPeriodNsecs();
+    const ftl::NonNull<DisplayModePtr> kMode =
+            ftl::as_non_null(createDisplayModeBuilder(DisplayModeId(0), refreshRate, kGroup,
+                                                      kResolution, DEFAULT_DISPLAY_ID)
+                                     .setVrrConfig(std::move(vrrConfig))
+                                     .build());
+
+    VSyncPredictor vrrTracker{std::make_unique<ClockWrapper>(mClock), kMode, kHistorySize,
+                              kMinimumSamplesForPrediction, kOutlierTolerancePercent};
+
+    vrrTracker.setRenderRate(minFrameRate, /*applyImmediately*/ false);
+    vrrTracker.addVsyncTimestamp(0);
+    EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
+
+    constexpr auto kLastConfirmedExpectedPresentTime = TimePoint::fromNs(1000);
+    constexpr auto kLastActualSignalTime = TimePoint::fromNs(700); // presented early
+    vrrTracker.onFrameBegin(TimePoint::fromNs(1400),
+                            {kLastActualSignalTime, kLastConfirmedExpectedPresentTime});
+    EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1400, 1000));
+    EXPECT_EQ(3000, vrrTracker.nextAnticipatedVSyncTimeFrom(2000, 1000));
+}
+
+TEST_F(VSyncPredictorTest, adjustsOnlyMinFrameViolatingVrrTimeline) {
+    const auto refreshRate = Fps::fromPeriodNsecs(500);
+    auto minFrameRate = Fps::fromPeriodNsecs(1000);
+    hal::VrrConfig vrrConfig{.minFrameIntervalNs =
+                                     static_cast<int32_t>(minFrameRate.getPeriodNsecs())};
+    ftl::NonNull<DisplayModePtr> mode =
+            ftl::as_non_null(createVrrDisplayMode(DisplayModeId(0), refreshRate, vrrConfig));
+    VSyncPredictor vrrTracker{std::make_unique<ClockWrapper>(mClock), mode, kHistorySize,
+                              kMinimumSamplesForPrediction, kOutlierTolerancePercent};
+    vrrTracker.setRenderRate(minFrameRate, /*applyImmediately*/ false);
+    vrrTracker.addVsyncTimestamp(0);
+
+    EXPECT_EQ(1000, vrrTracker.nextAnticipatedVSyncTimeFrom(700));
+    EXPECT_EQ(2000, vrrTracker.nextAnticipatedVSyncTimeFrom(1000));
+    auto lastConfirmedSignalTime = TimePoint::fromNs(1500);
+    auto lastConfirmedExpectedPresentTime = TimePoint::fromNs(1000);
+    vrrTracker.onFrameBegin(TimePoint::fromNs(2000),
+                            {lastConfirmedSignalTime, lastConfirmedExpectedPresentTime});
+    EXPECT_EQ(3500, vrrTracker.nextAnticipatedVSyncTimeFrom(3000, 1500));
+
+    minFrameRate = Fps::fromPeriodNsecs(2000);
+    vrrTracker.setRenderRate(minFrameRate, /*applyImmediately*/ false);
+    lastConfirmedSignalTime = TimePoint::fromNs(2500);
+    lastConfirmedExpectedPresentTime = TimePoint::fromNs(2500);
+    vrrTracker.onFrameBegin(TimePoint::fromNs(3000),
+                            {lastConfirmedSignalTime, lastConfirmedExpectedPresentTime});
+    // Enough time without adjusting vsync to present with new rate on time, no need of adjustment
+    EXPECT_EQ(5500, vrrTracker.nextAnticipatedVSyncTimeFrom(4000, 3500));
+}
 } // namespace android::scheduler
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h b/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h
index 7b18a82..4d35d4d 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockDisplayModeSpecs.h
@@ -22,14 +22,13 @@
 
 namespace android::mock {
 
-inline gui::DisplayModeSpecs createDisplayModeSpecs(DisplayModeId defaultMode,
-                                                    bool allowGroupSwitching, float minFps,
-                                                    float maxFps) {
+inline gui::DisplayModeSpecs createDisplayModeSpecs(DisplayModeId defaultMode, Fps maxFps,
+                                                    bool allowGroupSwitching = false) {
     gui::DisplayModeSpecs specs;
     specs.defaultMode = ftl::to_underlying(defaultMode);
     specs.allowGroupSwitching = allowGroupSwitching;
-    specs.primaryRanges.physical.min = minFps;
-    specs.primaryRanges.physical.max = maxFps;
+    specs.primaryRanges.physical.min = 0.f;
+    specs.primaryRanges.physical.max = maxFps.getValue();
     specs.primaryRanges.render = specs.primaryRanges.physical;
     specs.appRequestRanges = specs.primaryRanges;
     return specs;
diff --git a/services/surfaceflinger/tests/unittests/mock/MockLayer.h b/services/surfaceflinger/tests/unittests/mock/MockLayer.h
index 002fa9f..fdb6f4d 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockLayer.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockLayer.h
@@ -24,16 +24,10 @@
 class MockLayer : public Layer {
 public:
     MockLayer(SurfaceFlinger* flinger, std::string name)
-          : Layer(LayerCreationArgs(flinger, nullptr, std::move(name), 0, {})) {
-        EXPECT_CALL(*this, getDefaultFrameRateCompatibility())
-                .WillOnce(testing::Return(scheduler::FrameRateCompatibility::Default));
-    }
+          : Layer(LayerCreationArgs(flinger, nullptr, std::move(name), 0, {})) {}
 
     MockLayer(SurfaceFlinger* flinger, std::string name, std::optional<uint32_t> uid)
-          : Layer(LayerCreationArgs(flinger, nullptr, std::move(name), 0, {}, uid)) {
-        EXPECT_CALL(*this, getDefaultFrameRateCompatibility())
-                .WillOnce(testing::Return(scheduler::FrameRateCompatibility::Default));
-    }
+          : Layer(LayerCreationArgs(flinger, nullptr, std::move(name), 0, {}, uid)) {}
 
     explicit MockLayer(SurfaceFlinger* flinger) : MockLayer(flinger, "TestLayer") {}
 
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
index 8f21cdb..d45cc66 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
@@ -26,7 +26,6 @@
     MOCK_METHOD(void, requestHardwareVsync, (PhysicalDisplayId, bool), (override));
     MOCK_METHOD(void, requestDisplayModes, (std::vector<display::DisplayModeRequest>), (override));
     MOCK_METHOD(void, kernelTimerChanged, (bool), (override));
-    MOCK_METHOD(void, triggerOnFrameRateOverridesChanged, (), (override));
     MOCK_METHOD(void, onChoreographerAttached, (), (override));
     MOCK_METHOD(void, onExpectedPresentTimePosted, (TimePoint, ftl::NonNull<DisplayModePtr>, Fps),
                 (override));
@@ -38,7 +37,6 @@
     void requestHardwareVsync(PhysicalDisplayId, bool) override {}
     void requestDisplayModes(std::vector<display::DisplayModeRequest>) override {}
     void kernelTimerChanged(bool) override {}
-    void triggerOnFrameRateOverridesChanged() override {}
     void onChoreographerAttached() override {}
     void onExpectedPresentTimePosted(TimePoint, ftl::NonNull<DisplayModePtr>, Fps) override {}
     void onCommitNotComposited(PhysicalDisplayId) override {}
diff --git a/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h b/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
index 4f44d1b..8d6d1d3 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockVSyncTracker.h
@@ -18,6 +18,8 @@
 
 #include <gmock/gmock.h>
 
+#include <scheduler/FrameTime.h>
+
 #include "Scheduler/VSyncTracker.h"
 
 namespace android::mock {
@@ -37,7 +39,7 @@
     MOCK_METHOD(bool, isVSyncInPhase, (nsecs_t, Fps), (override));
     MOCK_METHOD(void, setDisplayModePtr, (ftl::NonNull<DisplayModePtr>), (override));
     MOCK_METHOD(void, setRenderRate, (Fps, bool), (override));
-    MOCK_METHOD(void, onFrameBegin, (TimePoint, TimePoint), (override));
+    MOCK_METHOD(void, onFrameBegin, (TimePoint, scheduler::FrameTime), (override));
     MOCK_METHOD(void, onFrameMissed, (TimePoint), (override));
     MOCK_METHOD(void, dump, (std::string&), (const, override));
     MOCK_METHOD(bool, isCurrentMode, (const ftl::NonNull<DisplayModePtr>&), (const, override));
diff --git a/services/surfaceflinger/tests/utils/ColorUtils.h b/services/surfaceflinger/tests/utils/ColorUtils.h
index 07916b6..253bad7 100644
--- a/services/surfaceflinger/tests/utils/ColorUtils.h
+++ b/services/surfaceflinger/tests/utils/ColorUtils.h
@@ -74,8 +74,8 @@
     static void applyMatrix(half3& color, const mat3& mat) {
         half3 ret = half3(0);
 
-        for (int i = 0; i < 3; i++) {
-            for (int j = 0; j < 3; j++) {
+        for (size_t i = 0; i < 3; i++) {
+            for (size_t j = 0; j < 3; j++) {
                 ret[i] = ret[i] + color[j] * mat[j][i];
             }
         }
diff --git a/services/vibratorservice/Android.bp b/services/vibratorservice/Android.bp
index 2002bdf..4735ae5 100644
--- a/services/vibratorservice/Android.bp
+++ b/services/vibratorservice/Android.bp
@@ -33,19 +33,19 @@
     ],
 
     aidl: {
-       local_include_dirs: ["include"],
-       include_dirs: [
-           "hardware/interfaces/vibrator/aidl/android/hardware/vibrator",
-       ],
-       export_aidl_headers: true
+        local_include_dirs: ["include"],
+        include_dirs: [
+            "hardware/interfaces/vibrator/aidl/android/hardware/vibrator",
+        ],
+        export_aidl_headers: true,
     },
 
     shared_libs: [
-        "libbinder",
+        "libbinder_ndk",
         "libhidlbase",
         "liblog",
         "libutils",
-        "android.hardware.vibrator-V2-cpp",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/services/vibratorservice/VibratorHalController.cpp b/services/vibratorservice/VibratorHalController.cpp
index c1795f5..283a5f0 100644
--- a/services/vibratorservice/VibratorHalController.cpp
+++ b/services/vibratorservice/VibratorHalController.cpp
@@ -16,9 +16,9 @@
 
 #define LOG_TAG "VibratorHalController"
 
+#include <aidl/android/hardware/vibrator/IVibrator.h>
+#include <android/binder_manager.h>
 #include <android/hardware/vibrator/1.3/IVibrator.h>
-#include <android/hardware/vibrator/IVibrator.h>
-#include <binder/IServiceManager.h>
 #include <hardware/vibrator.h>
 
 #include <utils/Log.h>
@@ -27,10 +27,10 @@
 #include <vibratorservice/VibratorHalController.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
-using android::hardware::vibrator::CompositeEffect;
-using android::hardware::vibrator::CompositePrimitive;
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
 
 using std::chrono::milliseconds;
 
@@ -38,7 +38,7 @@
 namespace V1_1 = android::hardware::vibrator::V1_1;
 namespace V1_2 = android::hardware::vibrator::V1_2;
 namespace V1_3 = android::hardware::vibrator::V1_3;
-namespace Aidl = android::hardware::vibrator;
+namespace Aidl = aidl::android::hardware::vibrator;
 
 namespace android {
 
@@ -53,10 +53,14 @@
         return nullptr;
     }
 
-    sp<Aidl::IVibrator> aidlHal = waitForVintfService<Aidl::IVibrator>();
-    if (aidlHal) {
-        ALOGV("Successfully connected to Vibrator HAL AIDL service.");
-        return std::make_shared<AidlHalWrapper>(std::move(scheduler), aidlHal);
+    auto serviceName = std::string(Aidl::IVibrator::descriptor) + "/default";
+    if (AServiceManager_isDeclared(serviceName.c_str())) {
+        std::shared_ptr<Aidl::IVibrator> hal = Aidl::IVibrator::fromBinder(
+                ndk::SpAIBinder(AServiceManager_waitForService(serviceName.c_str())));
+        if (hal) {
+            ALOGV("Successfully connected to Vibrator HAL AIDL service.");
+            return std::make_shared<AidlHalWrapper>(std::move(scheduler), std::move(hal));
+        }
     }
 
     sp<V1_0::IVibrator> halV1_0 = V1_0::IVibrator::getService();
diff --git a/services/vibratorservice/VibratorHalWrapper.cpp b/services/vibratorservice/VibratorHalWrapper.cpp
index f10ba44..c97f401 100644
--- a/services/vibratorservice/VibratorHalWrapper.cpp
+++ b/services/vibratorservice/VibratorHalWrapper.cpp
@@ -16,8 +16,8 @@
 
 #define LOG_TAG "VibratorHalWrapper"
 
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 #include <android/hardware/vibrator/1.3/IVibrator.h>
-#include <android/hardware/vibrator/IVibrator.h>
 #include <hardware/vibrator.h>
 #include <cmath>
 
@@ -26,12 +26,13 @@
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
-using android::hardware::vibrator::Braking;
-using android::hardware::vibrator::CompositeEffect;
-using android::hardware::vibrator::CompositePrimitive;
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
-using android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::Braking;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
 
 using std::chrono::milliseconds;
 
@@ -39,7 +40,7 @@
 namespace V1_1 = android::hardware::vibrator::V1_1;
 namespace V1_2 = android::hardware::vibrator::V1_2;
 namespace V1_3 = android::hardware::vibrator::V1_3;
-namespace Aidl = android::hardware::vibrator;
+namespace Aidl = aidl::android::hardware::vibrator;
 
 namespace android {
 
@@ -96,6 +97,11 @@
     return mInfoCache.get();
 }
 
+HalResult<void> HalWrapper::performVendorEffect(const VendorEffect&, const std::function<void()>&) {
+    ALOGV("Skipped performVendorEffect because it's not available in Vibrator HAL");
+    return HalResult<void>::unsupported();
+}
+
 HalResult<milliseconds> HalWrapper::performComposedEffect(const std::vector<CompositeEffect>&,
                                                           const std::function<void()>&) {
     ALOGV("Skipped performComposedEffect because it's not available in Vibrator HAL");
@@ -200,7 +206,7 @@
 // -------------------------------------------------------------------------------------------------
 
 HalResult<void> AidlHalWrapper::ping() {
-    return HalResultFactory::fromStatus(IInterface::asBinder(getHal())->pingBinder());
+    return HalResultFactory::fromStatus(AIBinder_ping(getHal()->asBinder().get()));
 }
 
 void AidlHalWrapper::tryReconnect() {
@@ -208,7 +214,7 @@
     if (!result.isOk()) {
         return;
     }
-    sp<Aidl::IVibrator> newHandle = result.value();
+    std::shared_ptr<Aidl::IVibrator> newHandle = result.value();
     if (newHandle) {
         std::lock_guard<std::mutex> lock(mHandleMutex);
         mHandle = std::move(newHandle);
@@ -220,7 +226,8 @@
     HalResult<Capabilities> capabilities = getCapabilities();
     bool supportsCallback = capabilities.isOk() &&
             static_cast<int32_t>(capabilities.value() & Capabilities::ON_CALLBACK);
-    auto cb = supportsCallback ? new HalCallbackWrapper(completionCallback) : nullptr;
+    auto cb = supportsCallback ? ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback)
+                               : nullptr;
 
     auto ret = HalResultFactory::fromStatus(getHal()->on(timeout.count(), cb));
     if (!supportsCallback && ret.isOk()) {
@@ -255,13 +262,14 @@
     HalResult<Capabilities> capabilities = getCapabilities();
     bool supportsCallback = capabilities.isOk() &&
             static_cast<int32_t>(capabilities.value() & Capabilities::PERFORM_CALLBACK);
-    auto cb = supportsCallback ? new HalCallbackWrapper(completionCallback) : nullptr;
+    auto cb = supportsCallback ? ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback)
+                               : nullptr;
 
     int32_t lengthMs;
-    auto result = getHal()->perform(effect, strength, cb, &lengthMs);
+    auto status = getHal()->perform(effect, strength, cb, &lengthMs);
     milliseconds length = milliseconds(lengthMs);
 
-    auto ret = HalResultFactory::fromStatus<milliseconds>(result, length);
+    auto ret = HalResultFactory::fromStatus<milliseconds>(std::move(status), length);
     if (!supportsCallback && ret.isOk()) {
         mCallbackScheduler->schedule(completionCallback, length);
     }
@@ -269,11 +277,18 @@
     return ret;
 }
 
+HalResult<void> AidlHalWrapper::performVendorEffect(
+        const VendorEffect& effect, const std::function<void()>& completionCallback) {
+    // This method should always support callbacks, so no need to double check.
+    auto cb = ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback);
+    return HalResultFactory::fromStatus(getHal()->performVendorEffect(effect, cb));
+}
+
 HalResult<milliseconds> AidlHalWrapper::performComposedEffect(
         const std::vector<CompositeEffect>& primitives,
         const std::function<void()>& completionCallback) {
     // This method should always support callbacks, so no need to double check.
-    auto cb = new HalCallbackWrapper(completionCallback);
+    auto cb = ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback);
 
     auto durations = getPrimitiveDurations().valueOr({});
     milliseconds duration(0);
@@ -294,40 +309,40 @@
 HalResult<void> AidlHalWrapper::performPwleEffect(const std::vector<PrimitivePwle>& primitives,
                                                   const std::function<void()>& completionCallback) {
     // This method should always support callbacks, so no need to double check.
-    auto cb = new HalCallbackWrapper(completionCallback);
+    auto cb = ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback);
     return HalResultFactory::fromStatus(getHal()->composePwle(primitives, cb));
 }
 
 HalResult<Capabilities> AidlHalWrapper::getCapabilitiesInternal() {
-    int32_t capabilities = 0;
-    auto result = getHal()->getCapabilities(&capabilities);
-    return HalResultFactory::fromStatus<Capabilities>(result,
-                                                      static_cast<Capabilities>(capabilities));
+    int32_t cap = 0;
+    auto status = getHal()->getCapabilities(&cap);
+    auto capabilities = static_cast<Capabilities>(cap);
+    return HalResultFactory::fromStatus<Capabilities>(std::move(status), capabilities);
 }
 
 HalResult<std::vector<Effect>> AidlHalWrapper::getSupportedEffectsInternal() {
     std::vector<Effect> supportedEffects;
-    auto result = getHal()->getSupportedEffects(&supportedEffects);
-    return HalResultFactory::fromStatus<std::vector<Effect>>(result, supportedEffects);
+    auto status = getHal()->getSupportedEffects(&supportedEffects);
+    return HalResultFactory::fromStatus<std::vector<Effect>>(std::move(status), supportedEffects);
 }
 
 HalResult<std::vector<Braking>> AidlHalWrapper::getSupportedBrakingInternal() {
     std::vector<Braking> supportedBraking;
-    auto result = getHal()->getSupportedBraking(&supportedBraking);
-    return HalResultFactory::fromStatus<std::vector<Braking>>(result, supportedBraking);
+    auto status = getHal()->getSupportedBraking(&supportedBraking);
+    return HalResultFactory::fromStatus<std::vector<Braking>>(std::move(status), supportedBraking);
 }
 
 HalResult<std::vector<CompositePrimitive>> AidlHalWrapper::getSupportedPrimitivesInternal() {
     std::vector<CompositePrimitive> supportedPrimitives;
-    auto result = getHal()->getSupportedPrimitives(&supportedPrimitives);
-    return HalResultFactory::fromStatus<std::vector<CompositePrimitive>>(result,
+    auto status = getHal()->getSupportedPrimitives(&supportedPrimitives);
+    return HalResultFactory::fromStatus<std::vector<CompositePrimitive>>(std::move(status),
                                                                          supportedPrimitives);
 }
 
 HalResult<std::vector<milliseconds>> AidlHalWrapper::getPrimitiveDurationsInternal(
         const std::vector<CompositePrimitive>& supportedPrimitives) {
     std::vector<milliseconds> durations;
-    constexpr auto primitiveRange = enum_range<CompositePrimitive>();
+    constexpr auto primitiveRange = ndk::enum_range<CompositePrimitive>();
     constexpr auto primitiveCount = std::distance(primitiveRange.begin(), primitiveRange.end());
     durations.resize(primitiveCount);
 
@@ -340,8 +355,8 @@
             continue;
         }
         int32_t duration = 0;
-        auto result = getHal()->getPrimitiveDuration(primitive, &duration);
-        auto halResult = HalResultFactory::fromStatus<int32_t>(result, duration);
+        auto status = getHal()->getPrimitiveDuration(primitive, &duration);
+        auto halResult = HalResultFactory::fromStatus<int32_t>(std::move(status), duration);
         if (halResult.isUnsupported()) {
             // Should not happen, supported primitives should always support requesting duration.
             ALOGE("Supported primitive %zu returned unsupported for getPrimitiveDuration",
@@ -349,7 +364,7 @@
         }
         if (halResult.isFailed()) {
             // Fail entire request if one request has failed.
-            return HalResult<std::vector<milliseconds>>::failed(result.toString8().c_str());
+            return HalResult<std::vector<milliseconds>>::failed(halResult.errorMessage());
         }
         durations[primitiveIdx] = milliseconds(duration);
     }
@@ -359,59 +374,59 @@
 
 HalResult<milliseconds> AidlHalWrapper::getPrimitiveDelayMaxInternal() {
     int32_t delay = 0;
-    auto result = getHal()->getCompositionDelayMax(&delay);
-    return HalResultFactory::fromStatus<milliseconds>(result, milliseconds(delay));
+    auto status = getHal()->getCompositionDelayMax(&delay);
+    return HalResultFactory::fromStatus<milliseconds>(std::move(status), milliseconds(delay));
 }
 
 HalResult<milliseconds> AidlHalWrapper::getPrimitiveDurationMaxInternal() {
     int32_t delay = 0;
-    auto result = getHal()->getPwlePrimitiveDurationMax(&delay);
-    return HalResultFactory::fromStatus<milliseconds>(result, milliseconds(delay));
+    auto status = getHal()->getPwlePrimitiveDurationMax(&delay);
+    return HalResultFactory::fromStatus<milliseconds>(std::move(status), milliseconds(delay));
 }
 
 HalResult<int32_t> AidlHalWrapper::getCompositionSizeMaxInternal() {
     int32_t size = 0;
-    auto result = getHal()->getCompositionSizeMax(&size);
-    return HalResultFactory::fromStatus<int32_t>(result, size);
+    auto status = getHal()->getCompositionSizeMax(&size);
+    return HalResultFactory::fromStatus<int32_t>(std::move(status), size);
 }
 
 HalResult<int32_t> AidlHalWrapper::getPwleSizeMaxInternal() {
     int32_t size = 0;
-    auto result = getHal()->getPwleCompositionSizeMax(&size);
-    return HalResultFactory::fromStatus<int32_t>(result, size);
+    auto status = getHal()->getPwleCompositionSizeMax(&size);
+    return HalResultFactory::fromStatus<int32_t>(std::move(status), size);
 }
 
 HalResult<float> AidlHalWrapper::getMinFrequencyInternal() {
     float minFrequency = 0;
-    auto result = getHal()->getFrequencyMinimum(&minFrequency);
-    return HalResultFactory::fromStatus<float>(result, minFrequency);
+    auto status = getHal()->getFrequencyMinimum(&minFrequency);
+    return HalResultFactory::fromStatus<float>(std::move(status), minFrequency);
 }
 
 HalResult<float> AidlHalWrapper::getResonantFrequencyInternal() {
     float f0 = 0;
-    auto result = getHal()->getResonantFrequency(&f0);
-    return HalResultFactory::fromStatus<float>(result, f0);
+    auto status = getHal()->getResonantFrequency(&f0);
+    return HalResultFactory::fromStatus<float>(std::move(status), f0);
 }
 
 HalResult<float> AidlHalWrapper::getFrequencyResolutionInternal() {
     float frequencyResolution = 0;
-    auto result = getHal()->getFrequencyResolution(&frequencyResolution);
-    return HalResultFactory::fromStatus<float>(result, frequencyResolution);
+    auto status = getHal()->getFrequencyResolution(&frequencyResolution);
+    return HalResultFactory::fromStatus<float>(std::move(status), frequencyResolution);
 }
 
 HalResult<float> AidlHalWrapper::getQFactorInternal() {
     float qFactor = 0;
-    auto result = getHal()->getQFactor(&qFactor);
-    return HalResultFactory::fromStatus<float>(result, qFactor);
+    auto status = getHal()->getQFactor(&qFactor);
+    return HalResultFactory::fromStatus<float>(std::move(status), qFactor);
 }
 
 HalResult<std::vector<float>> AidlHalWrapper::getMaxAmplitudesInternal() {
     std::vector<float> amplitudes;
-    auto result = getHal()->getBandwidthAmplitudeMap(&amplitudes);
-    return HalResultFactory::fromStatus<std::vector<float>>(result, amplitudes);
+    auto status = getHal()->getBandwidthAmplitudeMap(&amplitudes);
+    return HalResultFactory::fromStatus<std::vector<float>>(std::move(status), amplitudes);
 }
 
-sp<Aidl::IVibrator> AidlHalWrapper::getHal() {
+std::shared_ptr<Aidl::IVibrator> AidlHalWrapper::getHal() {
     std::lock_guard<std::mutex> lock(mHandleMutex);
     return mHandle;
 }
@@ -420,8 +435,7 @@
 
 template <typename I>
 HalResult<void> HidlHalWrapper<I>::ping() {
-    auto result = getHal()->ping();
-    return HalResultFactory::fromReturn(result);
+    return HalResultFactory::fromReturn(getHal()->ping());
 }
 
 template <typename I>
@@ -436,8 +450,8 @@
 template <typename I>
 HalResult<void> HidlHalWrapper<I>::on(milliseconds timeout,
                                       const std::function<void()>& completionCallback) {
-    auto result = getHal()->on(timeout.count());
-    auto ret = HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
+    auto status = getHal()->on(timeout.count());
+    auto ret = HalResultFactory::fromStatus(status.withDefault(V1_0::Status::UNKNOWN_ERROR));
     if (ret.isOk()) {
         mCallbackScheduler->schedule(completionCallback, timeout);
     }
@@ -446,15 +460,15 @@
 
 template <typename I>
 HalResult<void> HidlHalWrapper<I>::off() {
-    auto result = getHal()->off();
-    return HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
+    auto status = getHal()->off();
+    return HalResultFactory::fromStatus(status.withDefault(V1_0::Status::UNKNOWN_ERROR));
 }
 
 template <typename I>
 HalResult<void> HidlHalWrapper<I>::setAmplitude(float amplitude) {
     uint8_t amp = static_cast<uint8_t>(amplitude * std::numeric_limits<uint8_t>::max());
-    auto result = getHal()->setAmplitude(amp);
-    return HalResultFactory::fromStatus(result.withDefault(V1_0::Status::UNKNOWN_ERROR));
+    auto status = getHal()->setAmplitude(amp);
+    return HalResultFactory::fromStatus(status.withDefault(V1_0::Status::UNKNOWN_ERROR));
 }
 
 template <typename I>
@@ -480,7 +494,7 @@
     hardware::Return<bool> result = getHal()->supportsAmplitudeControl();
     Capabilities capabilities =
             result.withDefault(false) ? Capabilities::AMPLITUDE_CONTROL : Capabilities::NONE;
-    return HalResultFactory::fromReturn<Capabilities>(result, capabilities);
+    return HalResultFactory::fromReturn<Capabilities>(std::move(result), capabilities);
 }
 
 template <typename I>
@@ -499,7 +513,7 @@
     auto result = std::invoke(performFn, handle, effect, effectStrength, effectCallback);
     milliseconds length = milliseconds(lengthMs);
 
-    auto ret = HalResultFactory::fromReturn<milliseconds>(result, status, length);
+    auto ret = HalResultFactory::fromReturn<milliseconds>(std::move(result), status, length);
     if (ret.isOk()) {
         mCallbackScheduler->schedule(completionCallback, length);
     }
@@ -604,7 +618,7 @@
     sp<V1_3::IVibrator> hal = getHal();
     auto amplitudeResult = hal->supportsAmplitudeControl();
     if (!amplitudeResult.isOk()) {
-        return HalResultFactory::fromReturn<Capabilities>(amplitudeResult, capabilities);
+        return HalResultFactory::fromReturn<Capabilities>(std::move(amplitudeResult), capabilities);
     }
 
     auto externalControlResult = hal->supportsExternalControl();
@@ -619,7 +633,8 @@
         }
     }
 
-    return HalResultFactory::fromReturn<Capabilities>(externalControlResult, capabilities);
+    return HalResultFactory::fromReturn<Capabilities>(std::move(externalControlResult),
+                                                      capabilities);
 }
 
 // -------------------------------------------------------------------------------------------------
diff --git a/services/vibratorservice/VibratorManagerHalController.cpp b/services/vibratorservice/VibratorManagerHalController.cpp
index aa5b7fc..ba35d15 100644
--- a/services/vibratorservice/VibratorManagerHalController.cpp
+++ b/services/vibratorservice/VibratorManagerHalController.cpp
@@ -20,7 +20,7 @@
 
 #include <vibratorservice/VibratorManagerHalController.h>
 
-namespace Aidl = android::hardware::vibrator;
+namespace Aidl = aidl::android::hardware::vibrator;
 
 namespace android {
 
@@ -29,10 +29,15 @@
 std::shared_ptr<ManagerHalWrapper> connectManagerHal(std::shared_ptr<CallbackScheduler> scheduler) {
     static bool gHalExists = true;
     if (gHalExists) {
-        sp<Aidl::IVibratorManager> hal = waitForVintfService<Aidl::IVibratorManager>();
-        if (hal) {
-            ALOGV("Successfully connected to VibratorManager HAL AIDL service.");
-            return std::make_shared<AidlManagerHalWrapper>(std::move(scheduler), hal);
+        auto serviceName = std::string(Aidl::IVibratorManager::descriptor) + "/default";
+        if (AServiceManager_isDeclared(serviceName.c_str())) {
+            std::shared_ptr<Aidl::IVibratorManager> hal = Aidl::IVibratorManager::fromBinder(
+                    ndk::SpAIBinder(AServiceManager_checkService(serviceName.c_str())));
+            if (hal) {
+                ALOGV("Successfully connected to VibratorManager HAL AIDL service.");
+                return std::make_shared<AidlManagerHalWrapper>(std::move(scheduler),
+                                                               std::move(hal));
+            }
         }
     }
 
diff --git a/services/vibratorservice/VibratorManagerHalWrapper.cpp b/services/vibratorservice/VibratorManagerHalWrapper.cpp
index 1341266..93ec781 100644
--- a/services/vibratorservice/VibratorManagerHalWrapper.cpp
+++ b/services/vibratorservice/VibratorManagerHalWrapper.cpp
@@ -20,7 +20,7 @@
 
 #include <vibratorservice/VibratorManagerHalWrapper.h>
 
-namespace Aidl = android::hardware::vibrator;
+namespace Aidl = aidl::android::hardware::vibrator;
 
 namespace android {
 
@@ -75,10 +75,11 @@
 
 std::shared_ptr<HalWrapper> AidlManagerHalWrapper::connectToVibrator(
         int32_t vibratorId, std::shared_ptr<CallbackScheduler> callbackScheduler) {
-    std::function<HalResult<sp<Aidl::IVibrator>>()> reconnectFn = [=, this]() {
-        sp<Aidl::IVibrator> vibrator;
-        auto result = this->getHal()->getVibrator(vibratorId, &vibrator);
-        return HalResultFactory::fromStatus<sp<Aidl::IVibrator>>(result, vibrator);
+    std::function<HalResult<std::shared_ptr<Aidl::IVibrator>>()> reconnectFn = [=, this]() {
+        std::shared_ptr<Aidl::IVibrator> vibrator;
+        auto status = this->getHal()->getVibrator(vibratorId, &vibrator);
+        return HalResultFactory::fromStatus<std::shared_ptr<Aidl::IVibrator>>(std::move(status),
+                                                                              vibrator);
     };
     auto result = reconnectFn();
     if (!result.isOk()) {
@@ -93,11 +94,13 @@
 }
 
 HalResult<void> AidlManagerHalWrapper::ping() {
-    return HalResultFactory::fromStatus(IInterface::asBinder(getHal())->pingBinder());
+    return HalResultFactory::fromStatus(AIBinder_ping(getHal()->asBinder().get()));
 }
 
 void AidlManagerHalWrapper::tryReconnect() {
-    sp<Aidl::IVibratorManager> newHandle = checkVintfService<Aidl::IVibratorManager>();
+    auto aidlServiceName = std::string(Aidl::IVibratorManager::descriptor) + "/default";
+    std::shared_ptr<Aidl::IVibratorManager> newHandle = Aidl::IVibratorManager::fromBinder(
+            ndk::SpAIBinder(AServiceManager_checkService(aidlServiceName.c_str())));
     if (newHandle) {
         std::lock_guard<std::mutex> lock(mHandleMutex);
         mHandle = std::move(newHandle);
@@ -111,9 +114,9 @@
         return HalResult<ManagerCapabilities>::ok(*mCapabilities);
     }
     int32_t cap = 0;
-    auto result = getHal()->getCapabilities(&cap);
+    auto status = getHal()->getCapabilities(&cap);
     auto capabilities = static_cast<ManagerCapabilities>(cap);
-    auto ret = HalResultFactory::fromStatus<ManagerCapabilities>(result, capabilities);
+    auto ret = HalResultFactory::fromStatus<ManagerCapabilities>(std::move(status), capabilities);
     if (ret.isOk()) {
         // Cache copy of returned value.
         mCapabilities.emplace(ret.value());
@@ -128,8 +131,8 @@
         return HalResult<std::vector<int32_t>>::ok(*mVibratorIds);
     }
     std::vector<int32_t> ids;
-    auto result = getHal()->getVibratorIds(&ids);
-    auto ret = HalResultFactory::fromStatus<std::vector<int32_t>>(result, ids);
+    auto status = getHal()->getVibratorIds(&ids);
+    auto ret = HalResultFactory::fromStatus<std::vector<int32_t>>(std::move(status), ids);
     if (ret.isOk()) {
         // Cache copy of returned value and the individual controllers.
         mVibratorIds.emplace(ret.value());
@@ -178,7 +181,8 @@
     HalResult<ManagerCapabilities> capabilities = getCapabilities();
     bool supportsCallback = capabilities.isOk() &&
             static_cast<int32_t>(capabilities.value() & ManagerCapabilities::TRIGGER_CALLBACK);
-    auto cb = supportsCallback ? new HalCallbackWrapper(completionCallback) : nullptr;
+    auto cb = supportsCallback ? ndk::SharedRefBase::make<HalCallbackWrapper>(completionCallback)
+                               : nullptr;
     return HalResultFactory::fromStatus(getHal()->triggerSynced(cb));
 }
 
@@ -196,7 +200,7 @@
     return ret;
 }
 
-sp<Aidl::IVibratorManager> AidlManagerHalWrapper::getHal() {
+std::shared_ptr<Aidl::IVibratorManager> AidlManagerHalWrapper::getHal() {
     std::lock_guard<std::mutex> lock(mHandleMutex);
     return mHandle;
 }
diff --git a/services/vibratorservice/benchmarks/Android.bp b/services/vibratorservice/benchmarks/Android.bp
index 5437995..915d6c7 100644
--- a/services/vibratorservice/benchmarks/Android.bp
+++ b/services/vibratorservice/benchmarks/Android.bp
@@ -28,12 +28,12 @@
         "VibratorHalControllerBenchmarks.cpp",
     ],
     shared_libs: [
-        "libbinder",
+        "libbinder_ndk",
         "libhidlbase",
         "liblog",
         "libutils",
         "libvibratorservice",
-        "android.hardware.vibrator-V2-cpp",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/services/vibratorservice/benchmarks/VibratorHalControllerBenchmarks.cpp b/services/vibratorservice/benchmarks/VibratorHalControllerBenchmarks.cpp
index 9b30337..5c7c9f4 100644
--- a/services/vibratorservice/benchmarks/VibratorHalControllerBenchmarks.cpp
+++ b/services/vibratorservice/benchmarks/VibratorHalControllerBenchmarks.cpp
@@ -16,16 +16,15 @@
 
 #define LOG_TAG "VibratorHalControllerBenchmarks"
 
+#include <android/binder_process.h>
 #include <benchmark/benchmark.h>
-#include <binder/ProcessState.h>
 #include <vibratorservice/VibratorHalController.h>
 #include <future>
 
-using ::android::enum_range;
-using ::android::hardware::vibrator::CompositeEffect;
-using ::android::hardware::vibrator::CompositePrimitive;
-using ::android::hardware::vibrator::Effect;
-using ::android::hardware::vibrator::EffectStrength;
+using ::aidl::android::hardware::vibrator::CompositeEffect;
+using ::aidl::android::hardware::vibrator::CompositePrimitive;
+using ::aidl::android::hardware::vibrator::Effect;
+using ::aidl::android::hardware::vibrator::EffectStrength;
 using ::benchmark::Counter;
 using ::benchmark::Fixture;
 using ::benchmark::kMicrosecond;
@@ -115,8 +114,8 @@
 class VibratorBench : public Fixture {
 public:
     void SetUp(State& /*state*/) override {
-        android::ProcessState::self()->setThreadPoolMaxThreadCount(1);
-        android::ProcessState::self()->startThreadPool();
+        ABinderProcess_setThreadPoolMaxThreadCount(1);
+        ABinderProcess_startThreadPool();
         mController.init();
     }
 
@@ -388,11 +387,11 @@
             return;
         }
 
-        for (const auto& effect : enum_range<Effect>()) {
+        for (const auto& effect : ndk::enum_range<Effect>()) {
             if (std::find(supported.begin(), supported.end(), effect) == supported.end()) {
                 continue;
             }
-            for (const auto& strength : enum_range<EffectStrength>()) {
+            for (const auto& strength : ndk::enum_range<EffectStrength>()) {
                 b->Args({static_cast<long>(effect), static_cast<long>(strength)});
             }
         }
@@ -533,7 +532,7 @@
             return;
         }
 
-        for (const auto& primitive : enum_range<CompositePrimitive>()) {
+        for (const auto& primitive : ndk::enum_range<CompositePrimitive>()) {
             if (std::find(supported.begin(), supported.end(), primitive) == supported.end()) {
                 continue;
             }
diff --git a/services/vibratorservice/include/vibratorservice/VibratorHalController.h b/services/vibratorservice/include/vibratorservice/VibratorHalController.h
index f97442d..a1cb3fa 100644
--- a/services/vibratorservice/include/vibratorservice/VibratorHalController.h
+++ b/services/vibratorservice/include/vibratorservice/VibratorHalController.h
@@ -17,8 +17,8 @@
 #ifndef ANDROID_OS_VIBRATORHALCONTROLLER_H
 #define ANDROID_OS_VIBRATORHALCONTROLLER_H
 
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 #include <android-base/thread_annotations.h>
-#include <android/hardware/vibrator/IVibrator.h>
 
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
diff --git a/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h b/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
index 39c4eb4..20979bd 100644
--- a/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
+++ b/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
@@ -17,10 +17,12 @@
 #ifndef ANDROID_OS_VIBRATORHALWRAPPER_H
 #define ANDROID_OS_VIBRATORHALWRAPPER_H
 
+#include <aidl/android/hardware/vibrator/BnVibratorCallback.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
+
 #include <android-base/thread_annotations.h>
+#include <android/binder_manager.h>
 #include <android/hardware/vibrator/1.3/IVibrator.h>
-#include <android/hardware/vibrator/BnVibratorCallback.h>
-#include <android/hardware/vibrator/IVibrator.h>
 #include <binder/IServiceManager.h>
 
 #include <vibratorservice/VibratorCallbackScheduler.h>
@@ -98,43 +100,49 @@
 class HalResultFactory {
 public:
     template <typename T>
-    static HalResult<T> fromStatus(binder::Status status, T data) {
-        return status.isOk() ? HalResult<T>::ok(data) : fromFailedStatus<T>(status);
+    static HalResult<T> fromStatus(ndk::ScopedAStatus&& status, T data) {
+        return status.isOk() ? HalResult<T>::ok(std::move(data))
+                             : fromFailedStatus<T>(std::move(status));
     }
 
     template <typename T>
-    static HalResult<T> fromStatus(hardware::vibrator::V1_0::Status status, T data) {
-        return (status == hardware::vibrator::V1_0::Status::OK) ? HalResult<T>::ok(data)
-                                                                : fromFailedStatus<T>(status);
+    static HalResult<T> fromStatus(hardware::vibrator::V1_0::Status&& status, T data) {
+        return (status == hardware::vibrator::V1_0::Status::OK)
+                ? HalResult<T>::ok(std::move(data))
+                : fromFailedStatus<T>(std::move(status));
     }
 
     template <typename T, typename R>
-    static HalResult<T> fromReturn(hardware::Return<R>& ret, T data) {
-        return ret.isOk() ? HalResult<T>::ok(data) : fromFailedReturn<T, R>(ret);
+    static HalResult<T> fromReturn(hardware::Return<R>&& ret, T data) {
+        return ret.isOk() ? HalResult<T>::ok(std::move(data))
+                          : fromFailedReturn<T, R>(std::move(ret));
     }
 
     template <typename T, typename R>
-    static HalResult<T> fromReturn(hardware::Return<R>& ret,
+    static HalResult<T> fromReturn(hardware::Return<R>&& ret,
                                    hardware::vibrator::V1_0::Status status, T data) {
-        return ret.isOk() ? fromStatus<T>(status, data) : fromFailedReturn<T, R>(ret);
+        return ret.isOk() ? fromStatus<T>(std::move(status), std::move(data))
+                          : fromFailedReturn<T, R>(std::move(ret));
     }
 
     static HalResult<void> fromStatus(status_t status) {
-        return (status == android::OK) ? HalResult<void>::ok() : fromFailedStatus<void>(status);
+        return (status == android::OK) ? HalResult<void>::ok()
+                                       : fromFailedStatus<void>(std::move(status));
     }
 
-    static HalResult<void> fromStatus(binder::Status status) {
-        return status.isOk() ? HalResult<void>::ok() : fromFailedStatus<void>(status);
+    static HalResult<void> fromStatus(ndk::ScopedAStatus&& status) {
+        return status.isOk() ? HalResult<void>::ok() : fromFailedStatus<void>(std::move(status));
     }
 
-    static HalResult<void> fromStatus(hardware::vibrator::V1_0::Status status) {
-        return (status == hardware::vibrator::V1_0::Status::OK) ? HalResult<void>::ok()
-                                                                : fromFailedStatus<void>(status);
+    static HalResult<void> fromStatus(hardware::vibrator::V1_0::Status&& status) {
+        return (status == hardware::vibrator::V1_0::Status::OK)
+                ? HalResult<void>::ok()
+                : fromFailedStatus<void>(std::move(status));
     }
 
     template <typename R>
-    static HalResult<void> fromReturn(hardware::Return<R>& ret) {
-        return ret.isOk() ? HalResult<void>::ok() : fromFailedReturn<void, R>(ret);
+    static HalResult<void> fromReturn(hardware::Return<R>&& ret) {
+        return ret.isOk() ? HalResult<void>::ok() : fromFailedReturn<void, R>(std::move(ret));
     }
 
 private:
@@ -146,21 +154,21 @@
     }
 
     template <typename T>
-    static HalResult<T> fromFailedStatus(binder::Status status) {
-        if (status.exceptionCode() == binder::Status::EX_UNSUPPORTED_OPERATION ||
-            status.transactionError() == android::UNKNOWN_TRANSACTION) {
-            // UNKNOWN_TRANSACTION means the HAL implementation is an older version, so this is
-            // the same as the operation being unsupported by this HAL. Should not retry.
+    static HalResult<T> fromFailedStatus(ndk::ScopedAStatus&& status) {
+        if (status.getExceptionCode() == EX_UNSUPPORTED_OPERATION ||
+            status.getStatus() == STATUS_UNKNOWN_TRANSACTION) {
+            // STATUS_UNKNOWN_TRANSACTION means the HAL implementation is an older version, so this
+            // is the same as the operation being unsupported by this HAL. Should not retry.
             return HalResult<T>::unsupported();
         }
-        if (status.exceptionCode() == binder::Status::EX_TRANSACTION_FAILED) {
-            return HalResult<T>::transactionFailed(status.toString8().c_str());
+        if (status.getExceptionCode() == EX_TRANSACTION_FAILED) {
+            return HalResult<T>::transactionFailed(status.getMessage());
         }
-        return HalResult<T>::failed(status.toString8().c_str());
+        return HalResult<T>::failed(status.getMessage());
     }
 
     template <typename T>
-    static HalResult<T> fromFailedStatus(hardware::vibrator::V1_0::Status status) {
+    static HalResult<T> fromFailedStatus(hardware::vibrator::V1_0::Status&& status) {
         switch (status) {
             case hardware::vibrator::V1_0::Status::UNSUPPORTED_OPERATION:
                 return HalResult<T>::unsupported();
@@ -171,7 +179,7 @@
     }
 
     template <typename T, typename R>
-    static HalResult<T> fromFailedReturn(hardware::Return<R>& ret) {
+    static HalResult<T> fromFailedReturn(hardware::Return<R>&& ret) {
         return ret.isDeadObject() ? HalResult<T>::transactionFailed(ret.description().c_str())
                                   : HalResult<T>::failed(ret.description().c_str());
     }
@@ -179,14 +187,14 @@
 
 // -------------------------------------------------------------------------------------------------
 
-class HalCallbackWrapper : public hardware::vibrator::BnVibratorCallback {
+class HalCallbackWrapper : public aidl::android::hardware::vibrator::BnVibratorCallback {
 public:
     HalCallbackWrapper(std::function<void()> completionCallback)
           : mCompletionCallback(completionCallback) {}
 
-    binder::Status onComplete() override {
+    ndk::ScopedAStatus onComplete() override {
         mCompletionCallback();
-        return binder::Status::ok();
+        return ndk::ScopedAStatus::ok();
     }
 
 private:
@@ -198,14 +206,15 @@
 // Vibrator HAL capabilities.
 enum class Capabilities : int32_t {
     NONE = 0,
-    ON_CALLBACK = hardware::vibrator::IVibrator::CAP_ON_CALLBACK,
-    PERFORM_CALLBACK = hardware::vibrator::IVibrator::CAP_PERFORM_CALLBACK,
-    AMPLITUDE_CONTROL = hardware::vibrator::IVibrator::CAP_AMPLITUDE_CONTROL,
-    EXTERNAL_CONTROL = hardware::vibrator::IVibrator::CAP_EXTERNAL_CONTROL,
-    EXTERNAL_AMPLITUDE_CONTROL = hardware::vibrator::IVibrator::CAP_EXTERNAL_AMPLITUDE_CONTROL,
-    COMPOSE_EFFECTS = hardware::vibrator::IVibrator::CAP_COMPOSE_EFFECTS,
-    COMPOSE_PWLE_EFFECTS = hardware::vibrator::IVibrator::CAP_COMPOSE_PWLE_EFFECTS,
-    ALWAYS_ON_CONTROL = hardware::vibrator::IVibrator::CAP_ALWAYS_ON_CONTROL,
+    ON_CALLBACK = aidl::android::hardware::vibrator::IVibrator::CAP_ON_CALLBACK,
+    PERFORM_CALLBACK = aidl::android::hardware::vibrator::IVibrator::CAP_PERFORM_CALLBACK,
+    AMPLITUDE_CONTROL = aidl::android::hardware::vibrator::IVibrator::CAP_AMPLITUDE_CONTROL,
+    EXTERNAL_CONTROL = aidl::android::hardware::vibrator::IVibrator::CAP_EXTERNAL_CONTROL,
+    EXTERNAL_AMPLITUDE_CONTROL =
+            aidl::android::hardware::vibrator::IVibrator::CAP_EXTERNAL_AMPLITUDE_CONTROL,
+    COMPOSE_EFFECTS = aidl::android::hardware::vibrator::IVibrator::CAP_COMPOSE_EFFECTS,
+    COMPOSE_PWLE_EFFECTS = aidl::android::hardware::vibrator::IVibrator::CAP_COMPOSE_PWLE_EFFECTS,
+    ALWAYS_ON_CONTROL = aidl::android::hardware::vibrator::IVibrator::CAP_ALWAYS_ON_CONTROL,
 };
 
 inline Capabilities operator|(Capabilities lhs, Capabilities rhs) {
@@ -230,10 +239,15 @@
 
 class Info {
 public:
+    using Effect = aidl::android::hardware::vibrator::Effect;
+    using EffectStrength = aidl::android::hardware::vibrator::EffectStrength;
+    using CompositePrimitive = aidl::android::hardware::vibrator::CompositePrimitive;
+    using Braking = aidl::android::hardware::vibrator::Braking;
+
     const HalResult<Capabilities> capabilities;
-    const HalResult<std::vector<hardware::vibrator::Effect>> supportedEffects;
-    const HalResult<std::vector<hardware::vibrator::Braking>> supportedBraking;
-    const HalResult<std::vector<hardware::vibrator::CompositePrimitive>> supportedPrimitives;
+    const HalResult<std::vector<Effect>> supportedEffects;
+    const HalResult<std::vector<Braking>> supportedBraking;
+    const HalResult<std::vector<CompositePrimitive>> supportedPrimitives;
     const HalResult<std::vector<std::chrono::milliseconds>> primitiveDurations;
     const HalResult<std::chrono::milliseconds> primitiveDelayMax;
     const HalResult<std::chrono::milliseconds> pwlePrimitiveDurationMax;
@@ -247,12 +261,9 @@
 
     void logFailures() const {
         logFailure<Capabilities>(capabilities, "getCapabilities");
-        logFailure<std::vector<hardware::vibrator::Effect>>(supportedEffects,
-                                                            "getSupportedEffects");
-        logFailure<std::vector<hardware::vibrator::Braking>>(supportedBraking,
-                                                             "getSupportedBraking");
-        logFailure<std::vector<hardware::vibrator::CompositePrimitive>>(supportedPrimitives,
-                                                                        "getSupportedPrimitives");
+        logFailure<std::vector<Effect>>(supportedEffects, "getSupportedEffects");
+        logFailure<std::vector<Braking>>(supportedBraking, "getSupportedBraking");
+        logFailure<std::vector<CompositePrimitive>>(supportedPrimitives, "getSupportedPrimitives");
         logFailure<std::vector<std::chrono::milliseconds>>(primitiveDurations,
                                                            "getPrimitiveDuration");
         logFailure<std::chrono::milliseconds>(primitiveDelayMax, "getPrimitiveDelayMax");
@@ -309,12 +320,12 @@
     // Create a transaction failed results as default so we can retry on the first time we get them.
     static const constexpr char* MSG = "never loaded";
     HalResult<Capabilities> mCapabilities = HalResult<Capabilities>::transactionFailed(MSG);
-    HalResult<std::vector<hardware::vibrator::Effect>> mSupportedEffects =
-            HalResult<std::vector<hardware::vibrator::Effect>>::transactionFailed(MSG);
-    HalResult<std::vector<hardware::vibrator::Braking>> mSupportedBraking =
-            HalResult<std::vector<hardware::vibrator::Braking>>::transactionFailed(MSG);
-    HalResult<std::vector<hardware::vibrator::CompositePrimitive>> mSupportedPrimitives =
-            HalResult<std::vector<hardware::vibrator::CompositePrimitive>>::transactionFailed(MSG);
+    HalResult<std::vector<Info::Effect>> mSupportedEffects =
+            HalResult<std::vector<Info::Effect>>::transactionFailed(MSG);
+    HalResult<std::vector<Info::Braking>> mSupportedBraking =
+            HalResult<std::vector<Info::Braking>>::transactionFailed(MSG);
+    HalResult<std::vector<Info::CompositePrimitive>> mSupportedPrimitives =
+            HalResult<std::vector<Info::CompositePrimitive>>::transactionFailed(MSG);
     HalResult<std::vector<std::chrono::milliseconds>> mPrimitiveDurations =
             HalResult<std::vector<std::chrono::milliseconds>>::transactionFailed(MSG);
     HalResult<std::chrono::milliseconds> mPrimitiveDelayMax =
@@ -336,6 +347,14 @@
 // Wrapper for Vibrator HAL handlers.
 class HalWrapper {
 public:
+    using Effect = aidl::android::hardware::vibrator::Effect;
+    using EffectStrength = aidl::android::hardware::vibrator::EffectStrength;
+    using VendorEffect = aidl::android::hardware::vibrator::VendorEffect;
+    using CompositePrimitive = aidl::android::hardware::vibrator::CompositePrimitive;
+    using CompositeEffect = aidl::android::hardware::vibrator::CompositeEffect;
+    using Braking = aidl::android::hardware::vibrator::Braking;
+    using PrimitivePwle = aidl::android::hardware::vibrator::PrimitivePwle;
+
     explicit HalWrapper(std::shared_ptr<CallbackScheduler> scheduler)
           : mCallbackScheduler(std::move(scheduler)) {}
     virtual ~HalWrapper() = default;
@@ -355,21 +374,22 @@
     virtual HalResult<void> setAmplitude(float amplitude) = 0;
     virtual HalResult<void> setExternalControl(bool enabled) = 0;
 
-    virtual HalResult<void> alwaysOnEnable(int32_t id, hardware::vibrator::Effect effect,
-                                           hardware::vibrator::EffectStrength strength) = 0;
+    virtual HalResult<void> alwaysOnEnable(int32_t id, Effect effect, EffectStrength strength) = 0;
     virtual HalResult<void> alwaysOnDisable(int32_t id) = 0;
 
     virtual HalResult<std::chrono::milliseconds> performEffect(
-            hardware::vibrator::Effect effect, hardware::vibrator::EffectStrength strength,
+            Effect effect, EffectStrength strength,
             const std::function<void()>& completionCallback) = 0;
 
+    virtual HalResult<void> performVendorEffect(const VendorEffect& effect,
+                                                const std::function<void()>& completionCallback);
+
     virtual HalResult<std::chrono::milliseconds> performComposedEffect(
-            const std::vector<hardware::vibrator::CompositeEffect>& primitives,
+            const std::vector<CompositeEffect>& primitives,
             const std::function<void()>& completionCallback);
 
-    virtual HalResult<void> performPwleEffect(
-            const std::vector<hardware::vibrator::PrimitivePwle>& primitives,
-            const std::function<void()>& completionCallback);
+    virtual HalResult<void> performPwleEffect(const std::vector<PrimitivePwle>& primitives,
+                                              const std::function<void()>& completionCallback);
 
 protected:
     // Shared pointer to allow CallbackScheduler to outlive this wrapper.
@@ -381,12 +401,11 @@
 
     // Request vibrator info to HAL skipping cache.
     virtual HalResult<Capabilities> getCapabilitiesInternal() = 0;
-    virtual HalResult<std::vector<hardware::vibrator::Effect>> getSupportedEffectsInternal();
-    virtual HalResult<std::vector<hardware::vibrator::Braking>> getSupportedBrakingInternal();
-    virtual HalResult<std::vector<hardware::vibrator::CompositePrimitive>>
-    getSupportedPrimitivesInternal();
+    virtual HalResult<std::vector<Effect>> getSupportedEffectsInternal();
+    virtual HalResult<std::vector<Braking>> getSupportedBrakingInternal();
+    virtual HalResult<std::vector<CompositePrimitive>> getSupportedPrimitivesInternal();
     virtual HalResult<std::vector<std::chrono::milliseconds>> getPrimitiveDurationsInternal(
-            const std::vector<hardware::vibrator::CompositePrimitive>& supportedPrimitives);
+            const std::vector<CompositePrimitive>& supportedPrimitives);
     virtual HalResult<std::chrono::milliseconds> getPrimitiveDelayMaxInternal();
     virtual HalResult<std::chrono::milliseconds> getPrimitiveDurationMaxInternal();
     virtual HalResult<int32_t> getCompositionSizeMaxInternal();
@@ -405,12 +424,17 @@
 // Wrapper for the AIDL Vibrator HAL.
 class AidlHalWrapper : public HalWrapper {
 public:
+    using IVibrator = aidl::android::hardware::vibrator::IVibrator;
+    using reconnect_fn = std::function<HalResult<std::shared_ptr<IVibrator>>()>;
+
     AidlHalWrapper(
-            std::shared_ptr<CallbackScheduler> scheduler, sp<hardware::vibrator::IVibrator> handle,
-            std::function<HalResult<sp<hardware::vibrator::IVibrator>>()> reconnectFn =
+            std::shared_ptr<CallbackScheduler> scheduler, std::shared_ptr<IVibrator> handle,
+            reconnect_fn reconnectFn =
                     []() {
-                        return HalResult<sp<hardware::vibrator::IVibrator>>::ok(
-                                checkVintfService<hardware::vibrator::IVibrator>());
+                        auto serviceName = std::string(IVibrator::descriptor) + "/default";
+                        auto hal = IVibrator::fromBinder(
+                                ndk::SpAIBinder(AServiceManager_checkService(serviceName.c_str())));
+                        return HalResult<std::shared_ptr<IVibrator>>::ok(std::move(hal));
                     })
           : HalWrapper(std::move(scheduler)),
             mReconnectFn(reconnectFn),
@@ -427,32 +451,33 @@
     HalResult<void> setAmplitude(float amplitude) override final;
     HalResult<void> setExternalControl(bool enabled) override final;
 
-    HalResult<void> alwaysOnEnable(int32_t id, hardware::vibrator::Effect effect,
-                                   hardware::vibrator::EffectStrength strength) override final;
+    HalResult<void> alwaysOnEnable(int32_t id, Effect effect,
+                                   EffectStrength strength) override final;
     HalResult<void> alwaysOnDisable(int32_t id) override final;
 
     HalResult<std::chrono::milliseconds> performEffect(
-            hardware::vibrator::Effect effect, hardware::vibrator::EffectStrength strength,
+            Effect effect, EffectStrength strength,
+            const std::function<void()>& completionCallback) override final;
+
+    HalResult<void> performVendorEffect(
+            const VendorEffect& effect,
             const std::function<void()>& completionCallback) override final;
 
     HalResult<std::chrono::milliseconds> performComposedEffect(
-            const std::vector<hardware::vibrator::CompositeEffect>& primitives,
+            const std::vector<CompositeEffect>& primitives,
             const std::function<void()>& completionCallback) override final;
 
     HalResult<void> performPwleEffect(
-            const std::vector<hardware::vibrator::PrimitivePwle>& primitives,
+            const std::vector<PrimitivePwle>& primitives,
             const std::function<void()>& completionCallback) override final;
 
 protected:
     HalResult<Capabilities> getCapabilitiesInternal() override final;
-    HalResult<std::vector<hardware::vibrator::Effect>> getSupportedEffectsInternal() override final;
-    HalResult<std::vector<hardware::vibrator::Braking>> getSupportedBrakingInternal()
-            override final;
-    HalResult<std::vector<hardware::vibrator::CompositePrimitive>> getSupportedPrimitivesInternal()
-            override final;
+    HalResult<std::vector<Effect>> getSupportedEffectsInternal() override final;
+    HalResult<std::vector<Braking>> getSupportedBrakingInternal() override final;
+    HalResult<std::vector<CompositePrimitive>> getSupportedPrimitivesInternal() override final;
     HalResult<std::vector<std::chrono::milliseconds>> getPrimitiveDurationsInternal(
-            const std::vector<hardware::vibrator::CompositePrimitive>& supportedPrimitives)
-            override final;
+            const std::vector<CompositePrimitive>& supportedPrimitives) override final;
     HalResult<std::chrono::milliseconds> getPrimitiveDelayMaxInternal() override final;
     HalResult<std::chrono::milliseconds> getPrimitiveDurationMaxInternal() override final;
     HalResult<int32_t> getCompositionSizeMaxInternal() override final;
@@ -464,11 +489,11 @@
     HalResult<std::vector<float>> getMaxAmplitudesInternal() override final;
 
 private:
-    const std::function<HalResult<sp<hardware::vibrator::IVibrator>>()> mReconnectFn;
+    const reconnect_fn mReconnectFn;
     std::mutex mHandleMutex;
-    sp<hardware::vibrator::IVibrator> mHandle GUARDED_BY(mHandleMutex);
+    std::shared_ptr<IVibrator> mHandle GUARDED_BY(mHandleMutex);
 
-    sp<hardware::vibrator::IVibrator> getHal();
+    std::shared_ptr<IVibrator> getHal();
 };
 
 // Wrapper for the HDIL Vibrator HALs.
@@ -489,8 +514,8 @@
     HalResult<void> setAmplitude(float amplitude) override final;
     virtual HalResult<void> setExternalControl(bool enabled) override;
 
-    HalResult<void> alwaysOnEnable(int32_t id, hardware::vibrator::Effect effect,
-                                   hardware::vibrator::EffectStrength strength) override final;
+    HalResult<void> alwaysOnEnable(int32_t id, HalWrapper::Effect effect,
+                                   HalWrapper::EffectStrength strength) override final;
     HalResult<void> alwaysOnDisable(int32_t id) override final;
 
 protected:
@@ -506,8 +531,7 @@
 
     template <class T>
     HalResult<std::chrono::milliseconds> performInternal(
-            perform_fn<T> performFn, sp<I> handle, T effect,
-            hardware::vibrator::EffectStrength strength,
+            perform_fn<T> performFn, sp<I> handle, T effect, HalWrapper::EffectStrength strength,
             const std::function<void()>& completionCallback);
 
     sp<I> getHal();
@@ -523,7 +547,7 @@
     virtual ~HidlHalWrapperV1_0() = default;
 
     HalResult<std::chrono::milliseconds> performEffect(
-            hardware::vibrator::Effect effect, hardware::vibrator::EffectStrength strength,
+            HalWrapper::Effect effect, HalWrapper::EffectStrength strength,
             const std::function<void()>& completionCallback) override final;
 };
 
@@ -537,7 +561,7 @@
     virtual ~HidlHalWrapperV1_1() = default;
 
     HalResult<std::chrono::milliseconds> performEffect(
-            hardware::vibrator::Effect effect, hardware::vibrator::EffectStrength strength,
+            HalWrapper::Effect effect, HalWrapper::EffectStrength strength,
             const std::function<void()>& completionCallback) override final;
 };
 
@@ -551,7 +575,7 @@
     virtual ~HidlHalWrapperV1_2() = default;
 
     HalResult<std::chrono::milliseconds> performEffect(
-            hardware::vibrator::Effect effect, hardware::vibrator::EffectStrength strength,
+            HalWrapper::Effect effect, HalWrapper::EffectStrength strength,
             const std::function<void()>& completionCallback) override final;
 };
 
@@ -567,7 +591,7 @@
     HalResult<void> setExternalControl(bool enabled) override final;
 
     HalResult<std::chrono::milliseconds> performEffect(
-            hardware::vibrator::Effect effect, hardware::vibrator::EffectStrength strength,
+            HalWrapper::Effect effect, HalWrapper::EffectStrength strength,
             const std::function<void()>& completionCallback) override final;
 
 protected:
diff --git a/services/vibratorservice/include/vibratorservice/VibratorManagerHalController.h b/services/vibratorservice/include/vibratorservice/VibratorManagerHalController.h
index 9168565..70c846b 100644
--- a/services/vibratorservice/include/vibratorservice/VibratorManagerHalController.h
+++ b/services/vibratorservice/include/vibratorservice/VibratorManagerHalController.h
@@ -17,7 +17,7 @@
 #ifndef ANDROID_OS_VIBRATOR_MANAGER_HAL_CONTROLLER_H
 #define ANDROID_OS_VIBRATOR_MANAGER_HAL_CONTROLLER_H
 
-#include <android/hardware/vibrator/IVibratorManager.h>
+#include <aidl/android/hardware/vibrator/IVibratorManager.h>
 #include <vibratorservice/VibratorHalController.h>
 #include <vibratorservice/VibratorManagerHalWrapper.h>
 #include <unordered_map>
diff --git a/services/vibratorservice/include/vibratorservice/VibratorManagerHalWrapper.h b/services/vibratorservice/include/vibratorservice/VibratorManagerHalWrapper.h
index 563f55e..9e3f221 100644
--- a/services/vibratorservice/include/vibratorservice/VibratorManagerHalWrapper.h
+++ b/services/vibratorservice/include/vibratorservice/VibratorManagerHalWrapper.h
@@ -17,7 +17,7 @@
 #ifndef ANDROID_OS_VIBRATOR_MANAGER_HAL_WRAPPER_H
 #define ANDROID_OS_VIBRATOR_MANAGER_HAL_WRAPPER_H
 
-#include <android/hardware/vibrator/IVibratorManager.h>
+#include <aidl/android/hardware/vibrator/IVibratorManager.h>
 #include <vibratorservice/VibratorHalController.h>
 #include <unordered_map>
 
@@ -28,14 +28,17 @@
 // VibratorManager HAL capabilities.
 enum class ManagerCapabilities : int32_t {
     NONE = 0,
-    SYNC = hardware::vibrator::IVibratorManager::CAP_SYNC,
-    PREPARE_ON = hardware::vibrator::IVibratorManager::CAP_PREPARE_ON,
-    PREPARE_PERFORM = hardware::vibrator::IVibratorManager::CAP_PREPARE_PERFORM,
-    PREPARE_COMPOSE = hardware::vibrator::IVibratorManager::CAP_PREPARE_COMPOSE,
-    MIXED_TRIGGER_ON = hardware::vibrator::IVibratorManager::IVibratorManager::CAP_MIXED_TRIGGER_ON,
-    MIXED_TRIGGER_PERFORM = hardware::vibrator::IVibratorManager::CAP_MIXED_TRIGGER_PERFORM,
-    MIXED_TRIGGER_COMPOSE = hardware::vibrator::IVibratorManager::CAP_MIXED_TRIGGER_COMPOSE,
-    TRIGGER_CALLBACK = hardware::vibrator::IVibratorManager::CAP_TRIGGER_CALLBACK
+    SYNC = aidl::android::hardware::vibrator::IVibratorManager::CAP_SYNC,
+    PREPARE_ON = aidl::android::hardware::vibrator::IVibratorManager::CAP_PREPARE_ON,
+    PREPARE_PERFORM = aidl::android::hardware::vibrator::IVibratorManager::CAP_PREPARE_PERFORM,
+    PREPARE_COMPOSE = aidl::android::hardware::vibrator::IVibratorManager::CAP_PREPARE_COMPOSE,
+    MIXED_TRIGGER_ON = aidl::android::hardware::vibrator::IVibratorManager::IVibratorManager::
+            CAP_MIXED_TRIGGER_ON,
+    MIXED_TRIGGER_PERFORM =
+            aidl::android::hardware::vibrator::IVibratorManager::CAP_MIXED_TRIGGER_PERFORM,
+    MIXED_TRIGGER_COMPOSE =
+            aidl::android::hardware::vibrator::IVibratorManager::CAP_MIXED_TRIGGER_COMPOSE,
+    TRIGGER_CALLBACK = aidl::android::hardware::vibrator::IVibratorManager::CAP_TRIGGER_CALLBACK
 };
 
 inline ManagerCapabilities operator|(ManagerCapabilities lhs, ManagerCapabilities rhs) {
@@ -106,8 +109,10 @@
 // Wrapper for the AIDL VibratorManager HAL.
 class AidlManagerHalWrapper : public ManagerHalWrapper {
 public:
+    using VibratorManager = aidl::android::hardware::vibrator::IVibratorManager;
+
     explicit AidlManagerHalWrapper(std::shared_ptr<CallbackScheduler> callbackScheduler,
-                                   sp<hardware::vibrator::IVibratorManager> handle)
+                                   std::shared_ptr<VibratorManager> handle)
           : mHandle(std::move(handle)), mCallbackScheduler(callbackScheduler) {}
     virtual ~AidlManagerHalWrapper() = default;
 
@@ -126,14 +131,14 @@
     std::mutex mHandleMutex;
     std::mutex mCapabilitiesMutex;
     std::mutex mVibratorsMutex;
-    sp<hardware::vibrator::IVibratorManager> mHandle GUARDED_BY(mHandleMutex);
+    std::shared_ptr<VibratorManager> mHandle GUARDED_BY(mHandleMutex);
     std::optional<ManagerCapabilities> mCapabilities GUARDED_BY(mCapabilitiesMutex);
     std::optional<std::vector<int32_t>> mVibratorIds GUARDED_BY(mVibratorsMutex);
     std::unordered_map<int32_t, std::shared_ptr<HalController>> mVibrators
             GUARDED_BY(mVibratorsMutex);
     std::shared_ptr<CallbackScheduler> mCallbackScheduler;
 
-    sp<hardware::vibrator::IVibratorManager> getHal();
+    std::shared_ptr<VibratorManager> getHal();
     std::shared_ptr<HalWrapper> connectToVibrator(int32_t vibratorId,
                                                   std::shared_ptr<CallbackScheduler> scheduler);
 };
diff --git a/services/vibratorservice/test/Android.bp b/services/vibratorservice/test/Android.bp
index be71dc2..92527eb 100644
--- a/services/vibratorservice/test/Android.bp
+++ b/services/vibratorservice/test/Android.bp
@@ -44,12 +44,12 @@
     ],
     shared_libs: [
         "libbase",
-        "libbinder",
+        "libbinder_ndk",
         "libhidlbase",
         "liblog",
         "libvibratorservice",
         "libutils",
-        "android.hardware.vibrator-V2-cpp",
+        "android.hardware.vibrator-V3-ndk",
         "android.hardware.vibrator@1.0",
         "android.hardware.vibrator@1.1",
         "android.hardware.vibrator@1.2",
diff --git a/services/vibratorservice/test/VibratorHalControllerTest.cpp b/services/vibratorservice/test/VibratorHalControllerTest.cpp
index 15fde91..f4c2898 100644
--- a/services/vibratorservice/test/VibratorHalControllerTest.cpp
+++ b/services/vibratorservice/test/VibratorHalControllerTest.cpp
@@ -16,7 +16,7 @@
 
 #define LOG_TAG "VibratorHalControllerTest"
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 #include <cutils/atomic.h>
 
 #include <gmock/gmock.h>
@@ -29,10 +29,11 @@
 #include <vibratorservice/VibratorHalController.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
 
 using std::chrono::milliseconds;
 
@@ -46,41 +47,12 @@
 
 // -------------------------------------------------------------------------------------------------
 
-class MockHalWrapper : public vibrator::HalWrapper {
-public:
-    MockHalWrapper(std::shared_ptr<vibrator::CallbackScheduler> scheduler)
-          : HalWrapper(scheduler) {}
-    virtual ~MockHalWrapper() = default;
-
-    MOCK_METHOD(vibrator::HalResult<void>, ping, (), (override));
-    MOCK_METHOD(void, tryReconnect, (), (override));
-    MOCK_METHOD(vibrator::HalResult<void>, on,
-                (milliseconds timeout, const std::function<void()>& completionCallback),
-                (override));
-    MOCK_METHOD(vibrator::HalResult<void>, off, (), (override));
-    MOCK_METHOD(vibrator::HalResult<void>, setAmplitude, (float amplitude), (override));
-    MOCK_METHOD(vibrator::HalResult<void>, setExternalControl, (bool enabled), (override));
-    MOCK_METHOD(vibrator::HalResult<void>, alwaysOnEnable,
-                (int32_t id, Effect effect, EffectStrength strength), (override));
-    MOCK_METHOD(vibrator::HalResult<void>, alwaysOnDisable, (int32_t id), (override));
-    MOCK_METHOD(vibrator::HalResult<milliseconds>, performEffect,
-                (Effect effect, EffectStrength strength,
-                 const std::function<void()>& completionCallback),
-                (override));
-    MOCK_METHOD(vibrator::HalResult<vibrator::Capabilities>, getCapabilitiesInternal, (),
-                (override));
-
-    vibrator::CallbackScheduler* getCallbackScheduler() { return mCallbackScheduler.get(); }
-};
-
-// -------------------------------------------------------------------------------------------------
-
 class VibratorHalControllerTest : public Test {
 public:
     void SetUp() override {
         mConnectCounter = 0;
         auto callbackScheduler = std::make_shared<vibrator::CallbackScheduler>();
-        mMockHal = std::make_shared<StrictMock<MockHalWrapper>>(callbackScheduler);
+        mMockHal = std::make_shared<StrictMock<vibrator::MockHalWrapper>>(callbackScheduler);
         mController = std::make_unique<
                 vibrator::HalController>(std::move(callbackScheduler),
                                          [&](std::shared_ptr<vibrator::CallbackScheduler>) {
@@ -92,7 +64,7 @@
 
 protected:
     int32_t mConnectCounter;
-    std::shared_ptr<MockHalWrapper> mMockHal;
+    std::shared_ptr<vibrator::MockHalWrapper> mMockHal;
     std::unique_ptr<vibrator::HalController> mController;
 };
 
diff --git a/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp b/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
index 03c9e77..7bcc59a 100644
--- a/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
@@ -16,7 +16,8 @@
 
 #define LOG_TAG "VibratorHalWrapperAidlTest"
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
+#include <android/persistable_bundle_aidl.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -27,18 +28,19 @@
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
-using android::binder::Status;
-
-using android::hardware::vibrator::Braking;
-using android::hardware::vibrator::CompositeEffect;
-using android::hardware::vibrator::CompositePrimitive;
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
-using android::hardware::vibrator::IVibrator;
-using android::hardware::vibrator::IVibratorCallback;
-using android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::Braking;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::IVibrator;
+using aidl::android::hardware::vibrator::IVibratorCallback;
+using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
+using aidl::android::os::PersistableBundle;
 
 using namespace android;
 using namespace std::chrono_literals;
@@ -46,61 +48,10 @@
 
 // -------------------------------------------------------------------------------------------------
 
-class MockBinder : public BBinder {
-public:
-    MOCK_METHOD(status_t, linkToDeath,
-                (const sp<DeathRecipient>& recipient, void* cookie, uint32_t flags), (override));
-    MOCK_METHOD(status_t, unlinkToDeath,
-                (const wp<DeathRecipient>& recipient, void* cookie, uint32_t flags,
-                 wp<DeathRecipient>* outRecipient),
-                (override));
-    MOCK_METHOD(status_t, pingBinder, (), (override));
-};
-
-class MockIVibrator : public IVibrator {
-public:
-    MOCK_METHOD(Status, getCapabilities, (int32_t * ret), (override));
-    MOCK_METHOD(Status, off, (), (override));
-    MOCK_METHOD(Status, on, (int32_t timeout, const sp<IVibratorCallback>& cb), (override));
-    MOCK_METHOD(Status, perform,
-                (Effect e, EffectStrength s, const sp<IVibratorCallback>& cb, int32_t* ret),
-                (override));
-    MOCK_METHOD(Status, getSupportedEffects, (std::vector<Effect> * ret), (override));
-    MOCK_METHOD(Status, setAmplitude, (float amplitude), (override));
-    MOCK_METHOD(Status, setExternalControl, (bool enabled), (override));
-    MOCK_METHOD(Status, getCompositionDelayMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getCompositionSizeMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getSupportedPrimitives, (std::vector<CompositePrimitive> * ret),
-                (override));
-    MOCK_METHOD(Status, getPrimitiveDuration, (CompositePrimitive p, int32_t* ret), (override));
-    MOCK_METHOD(Status, compose,
-                (const std::vector<CompositeEffect>& e, const sp<IVibratorCallback>& cb),
-                (override));
-    MOCK_METHOD(Status, composePwle,
-                (const std::vector<PrimitivePwle>& e, const sp<IVibratorCallback>& cb), (override));
-    MOCK_METHOD(Status, getSupportedAlwaysOnEffects, (std::vector<Effect> * ret), (override));
-    MOCK_METHOD(Status, alwaysOnEnable, (int32_t id, Effect e, EffectStrength s), (override));
-    MOCK_METHOD(Status, alwaysOnDisable, (int32_t id), (override));
-    MOCK_METHOD(Status, getQFactor, (float * ret), (override));
-    MOCK_METHOD(Status, getResonantFrequency, (float * ret), (override));
-    MOCK_METHOD(Status, getFrequencyResolution, (float* ret), (override));
-    MOCK_METHOD(Status, getFrequencyMinimum, (float* ret), (override));
-    MOCK_METHOD(Status, getBandwidthAmplitudeMap, (std::vector<float> * ret), (override));
-    MOCK_METHOD(Status, getPwlePrimitiveDurationMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getPwleCompositionSizeMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getSupportedBraking, (std::vector<Braking> * ret), (override));
-    MOCK_METHOD(int32_t, getInterfaceVersion, (), (override));
-    MOCK_METHOD(std::string, getInterfaceHash, (), (override));
-    MOCK_METHOD(IBinder*, onAsBinder, (), (override));
-};
-
-// -------------------------------------------------------------------------------------------------
-
 class VibratorHalWrapperAidlTest : public Test {
 public:
     void SetUp() override {
-        mMockBinder = new StrictMock<MockBinder>();
-        mMockHal = new StrictMock<MockIVibrator>();
+        mMockHal = ndk::SharedRefBase::make<StrictMock<vibrator::MockIVibrator>>();
         mMockScheduler = std::make_shared<StrictMock<vibrator::MockCallbackScheduler>>();
         mWrapper = std::make_unique<vibrator::AidlHalWrapper>(mMockScheduler, mMockHal);
         ASSERT_NE(mWrapper, nullptr);
@@ -109,54 +60,28 @@
 protected:
     std::shared_ptr<StrictMock<vibrator::MockCallbackScheduler>> mMockScheduler = nullptr;
     std::unique_ptr<vibrator::HalWrapper> mWrapper = nullptr;
-    sp<StrictMock<MockIVibrator>> mMockHal = nullptr;
-    sp<StrictMock<MockBinder>> mMockBinder = nullptr;
+    std::shared_ptr<StrictMock<vibrator::MockIVibrator>> mMockHal = nullptr;
 };
 
 // -------------------------------------------------------------------------------------------------
 
-ACTION(TriggerCallbackInArg1) {
-    if (arg1 != nullptr) {
-        arg1->onComplete();
-    }
-}
-
-ACTION(TriggerCallbackInArg2) {
-    if (arg2 != nullptr) {
-        arg2->onComplete();
-    }
-}
-
-TEST_F(VibratorHalWrapperAidlTest, TestPing) {
-    EXPECT_CALL(*mMockHal.get(), onAsBinder())
-            .Times(Exactly(2))
-            .WillRepeatedly(Return(mMockBinder.get()));
-    EXPECT_CALL(*mMockBinder.get(), pingBinder())
-            .Times(Exactly(2))
-            .WillOnce(Return(android::OK))
-            .WillRepeatedly(Return(android::DEAD_OBJECT));
-
-    ASSERT_TRUE(mWrapper->ping().isOk());
-    ASSERT_TRUE(mWrapper->ping().isFailed());
-}
-
 TEST_F(VibratorHalWrapperAidlTest, TestOnWithCallbackSupport) {
     {
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), on(Eq(10), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(TriggerCallbackInArg1(), Return(Status())));
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), on(Eq(100), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(
-                        Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
         EXPECT_CALL(*mMockHal.get(), on(Eq(1000), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -179,20 +104,20 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<0>(IVibrator::CAP_COMPOSE_EFFECTS), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(IVibrator::CAP_COMPOSE_EFFECTS),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), on(Eq(10), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status()));
+                .WillOnce(Return(ndk::ScopedAStatus::ok()));
         EXPECT_CALL(*mMockScheduler.get(), schedule(_, Eq(10ms)))
                 .Times(Exactly(1))
-                .WillRepeatedly(vibrator::TriggerSchedulerCallback());
+                .WillOnce(vibrator::TriggerSchedulerCallback());
         EXPECT_CALL(*mMockHal.get(), on(Eq(11), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
         EXPECT_CALL(*mMockHal.get(), on(Eq(12), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -211,10 +136,9 @@
 TEST_F(VibratorHalWrapperAidlTest, TestOff) {
     EXPECT_CALL(*mMockHal.get(), off())
             .Times(Exactly(3))
-            .WillOnce(Return(Status()))
-            .WillOnce(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)))
-            .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+            .WillOnce(Return(ndk::ScopedAStatus::ok()))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
 
     ASSERT_TRUE(mWrapper->off().isOk());
     ASSERT_TRUE(mWrapper->off().isUnsupported());
@@ -224,13 +148,15 @@
 TEST_F(VibratorHalWrapperAidlTest, TestSetAmplitude) {
     {
         InSequence seq;
-        EXPECT_CALL(*mMockHal.get(), setAmplitude(Eq(0.1f))).Times(Exactly(1));
+        EXPECT_CALL(*mMockHal.get(), setAmplitude(Eq(0.1f)))
+                .Times(Exactly(1))
+                .WillOnce(Return(ndk::ScopedAStatus::ok()));
         EXPECT_CALL(*mMockHal.get(), setAmplitude(Eq(0.2f)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
         EXPECT_CALL(*mMockHal.get(), setAmplitude(Eq(0.5f)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     ASSERT_TRUE(mWrapper->setAmplitude(0.1f).isOk());
@@ -241,12 +167,13 @@
 TEST_F(VibratorHalWrapperAidlTest, TestSetExternalControl) {
     {
         InSequence seq;
-        EXPECT_CALL(*mMockHal.get(), setExternalControl(Eq(true))).Times(Exactly(1));
+        EXPECT_CALL(*mMockHal.get(), setExternalControl(Eq(true)))
+                .Times(Exactly(1))
+                .WillOnce(Return(ndk::ScopedAStatus::ok()));
         EXPECT_CALL(*mMockHal.get(), setExternalControl(Eq(false)))
                 .Times(Exactly(2))
-                .WillOnce(Return(
-                        Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     ASSERT_TRUE(mWrapper->setExternalControl(true).isOk());
@@ -259,15 +186,16 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(),
                     alwaysOnEnable(Eq(1), Eq(Effect::CLICK), Eq(EffectStrength::LIGHT)))
-                .Times(Exactly(1));
+                .Times(Exactly(1))
+                .WillOnce(Return(ndk::ScopedAStatus::ok()));
         EXPECT_CALL(*mMockHal.get(),
                     alwaysOnEnable(Eq(2), Eq(Effect::TICK), Eq(EffectStrength::MEDIUM)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
         EXPECT_CALL(*mMockHal.get(),
                     alwaysOnEnable(Eq(3), Eq(Effect::POP), Eq(EffectStrength::STRONG)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     auto result = mWrapper->alwaysOnEnable(1, Effect::CLICK, EffectStrength::LIGHT);
@@ -281,14 +209,15 @@
 TEST_F(VibratorHalWrapperAidlTest, TestAlwaysOnDisable) {
     {
         InSequence seq;
-        EXPECT_CALL(*mMockHal.get(), alwaysOnDisable(Eq(1))).Times(Exactly(1));
+        EXPECT_CALL(*mMockHal.get(), alwaysOnDisable(Eq(1)))
+                .Times(Exactly(1))
+                .WillOnce(Return(ndk::ScopedAStatus::ok()));
         EXPECT_CALL(*mMockHal.get(), alwaysOnDisable(Eq(2)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(
-                        Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
         EXPECT_CALL(*mMockHal.get(), alwaysOnDisable(Eq(3)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     ASSERT_TRUE(mWrapper->alwaysOnDisable(1).isOk());
@@ -311,66 +240,70 @@
     std::vector<float> amplitudes = {0.f, 1.f, 0.f};
 
     std::vector<std::chrono::milliseconds> primitiveDurations;
-    constexpr auto primitiveRange = enum_range<CompositePrimitive>();
+    constexpr auto primitiveRange = ndk::enum_range<CompositePrimitive>();
     constexpr auto primitiveCount = std::distance(primitiveRange.begin(), primitiveRange.end());
     primitiveDurations.resize(primitiveCount);
     primitiveDurations[static_cast<size_t>(CompositePrimitive::CLICK)] = 10ms;
 
     EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK),
+                            Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getSupportedEffects(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(supportedEffects), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(supportedEffects), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getSupportedBraking(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(supportedBraking), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(supportedBraking), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getSupportedPrimitives(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(supportedPrimitives), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(
+                    DoAll(SetArgPointee<0>(supportedPrimitives), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::CLICK), _))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<1>(10), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<1>(10), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getCompositionSizeMax(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(COMPOSITION_SIZE_MAX), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(COMPOSITION_SIZE_MAX),
+                            Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getCompositionDelayMax(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(PRIMITIVE_DELAY_MAX), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(
+                    DoAll(SetArgPointee<0>(PRIMITIVE_DELAY_MAX), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getPwlePrimitiveDurationMax(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(PWLE_DURATION_MAX), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(PWLE_DURATION_MAX), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getPwleCompositionSizeMax(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(PWLE_SIZE_MAX), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(PWLE_SIZE_MAX), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getFrequencyMinimum(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(F_MIN), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(F_MIN), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getResonantFrequency(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(F0), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(F0), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getFrequencyResolution(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(F_RESOLUTION), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(F_RESOLUTION), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getQFactor(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(Q_FACTOR), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(Q_FACTOR), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getBandwidthAmplitudeMap(_))
             .Times(Exactly(2))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(amplitudes), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(amplitudes), Return(ndk::ScopedAStatus::ok())));
 
     vibrator::Info failed = mWrapper->getInfo();
     ASSERT_TRUE(failed.capabilities.isFailed());
@@ -417,46 +350,46 @@
 
     EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK),
+                            Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getSupportedEffects(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(supportedEffects), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(supportedEffects), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getQFactor(_))
             .Times(Exactly(1))
-            .WillRepeatedly(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
     EXPECT_CALL(*mMockHal.get(), getSupportedPrimitives(_))
             .Times(Exactly(1))
-            .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+            .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
     EXPECT_CALL(*mMockHal.get(), getCompositionSizeMax(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(COMPOSITION_SIZE_MAX), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(COMPOSITION_SIZE_MAX),
+                            Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getCompositionDelayMax(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(PRIMITIVE_DELAY_MAX), Return(Status())));
+            .WillOnce(
+                    DoAll(SetArgPointee<0>(PRIMITIVE_DELAY_MAX), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getPwlePrimitiveDurationMax(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(PWLE_DURATION_MAX), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(PWLE_DURATION_MAX), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getPwleCompositionSizeMax(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(PWLE_SIZE_MAX), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(PWLE_SIZE_MAX), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getFrequencyMinimum(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(F_MIN), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(F_MIN), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getResonantFrequency(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(F0), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(F0), Return(ndk::ScopedAStatus::ok())));
     EXPECT_CALL(*mMockHal.get(), getFrequencyResolution(_))
             .Times(Exactly(1))
-            .WillRepeatedly(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
     EXPECT_CALL(*mMockHal.get(), getBandwidthAmplitudeMap(_))
             .Times(Exactly(1))
-            .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+            .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
     EXPECT_CALL(*mMockHal.get(), getSupportedBraking(_))
             .Times(Exactly(1))
-            .WillRepeatedly(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
 
     std::vector<std::thread> threads;
     for (int i = 0; i < 10; i++) {
@@ -487,18 +420,18 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<0>(IVibrator::CAP_PERFORM_CALLBACK), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(IVibrator::CAP_PERFORM_CALLBACK),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), perform(Eq(Effect::CLICK), Eq(EffectStrength::LIGHT), _, _))
                 .Times(Exactly(1))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<3>(1000), TriggerCallbackInArg2(), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<3>(1000), WithArg<2>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), perform(Eq(Effect::POP), Eq(EffectStrength::MEDIUM), _, _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
         EXPECT_CALL(*mMockHal.get(), perform(Eq(Effect::THUD), Eq(EffectStrength::STRONG), _, _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -525,21 +458,20 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(IVibrator::CAP_ON_CALLBACK),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), perform(Eq(Effect::CLICK), Eq(EffectStrength::LIGHT), _, _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<3>(10), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<3>(10), Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockScheduler.get(), schedule(_, Eq(10ms)))
                 .Times(Exactly(1))
-                .WillRepeatedly(vibrator::TriggerSchedulerCallback());
+                .WillOnce(vibrator::TriggerSchedulerCallback());
         EXPECT_CALL(*mMockHal.get(), perform(Eq(Effect::POP), Eq(EffectStrength::MEDIUM), _, _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(
-                        Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
         EXPECT_CALL(*mMockHal.get(), perform(Eq(Effect::THUD), Eq(EffectStrength::STRONG), _, _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -560,6 +492,42 @@
     ASSERT_EQ(1, *callbackCounter.get());
 }
 
+TEST_F(VibratorHalWrapperAidlTest, TestPerformVendorEffect) {
+    PersistableBundle vendorData;
+    vendorData.putInt("key", 1);
+    VendorEffect vendorEffect;
+    vendorEffect.vendorData = vendorData;
+    vendorEffect.strength = EffectStrength::MEDIUM;
+    vendorEffect.scale = 0.5f;
+
+    {
+        InSequence seq;
+        EXPECT_CALL(*mMockHal.get(), performVendorEffect(_, _))
+                .Times(Exactly(3))
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
+    }
+
+    std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
+    auto callback = vibrator::TestFactory::createCountingCallback(callbackCounter.get());
+
+    auto result = mWrapper->performVendorEffect(vendorEffect, callback);
+    ASSERT_TRUE(result.isUnsupported());
+    // Callback not triggered on failure
+    ASSERT_EQ(0, *callbackCounter.get());
+
+    result = mWrapper->performVendorEffect(vendorEffect, callback);
+    ASSERT_TRUE(result.isFailed());
+    // Callback not triggered for unsupported
+    ASSERT_EQ(0, *callbackCounter.get());
+
+    result = mWrapper->performVendorEffect(vendorEffect, callback);
+    ASSERT_TRUE(result.isOk());
+    ASSERT_EQ(1, *callbackCounter.get());
+}
+
 TEST_F(VibratorHalWrapperAidlTest, TestPerformComposedEffect) {
     std::vector<CompositePrimitive> supportedPrimitives = {CompositePrimitive::CLICK,
                                                            CompositePrimitive::SPIN,
@@ -576,26 +544,28 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getSupportedPrimitives(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<0>(supportedPrimitives), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(supportedPrimitives),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::CLICK), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(1), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(1), Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::SPIN), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(2), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(2), Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::THUD), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(3), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(3), Return(ndk::ScopedAStatus::ok())));
 
         EXPECT_CALL(*mMockHal.get(), compose(Eq(emptyEffects), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(TriggerCallbackInArg1(), Return(Status())));
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), compose(Eq(singleEffect), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)));
         EXPECT_CALL(*mMockHal.get(), compose(Eq(multipleEffects), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -630,26 +600,32 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getSupportedPrimitives(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<0>(supportedPrimitives), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(supportedPrimitives),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::SPIN), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(2), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(2), Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::THUD), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)));
         EXPECT_CALL(*mMockHal.get(), compose(Eq(multipleEffects), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(TriggerCallbackInArg1(), Return(Status())));
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
 
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::SPIN), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(2), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(2), Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), getPrimitiveDuration(Eq(CompositePrimitive::THUD), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(2), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(2), Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), compose(Eq(multipleEffects), _))
                 .Times(Exactly(2))
-                .WillRepeatedly(DoAll(TriggerCallbackInArg1(), Return(Status())));
+                // ndk::ScopedAStatus::ok() cannot be copy-constructed so can't use WillRepeatedly
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())))
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -680,12 +656,12 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), composePwle(Eq(emptyPrimitives), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(
-                        Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)));
         EXPECT_CALL(*mMockHal.get(), composePwle(Eq(multiplePrimitives), _))
                 .Times(Exactly(2))
-                .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-                .WillRepeatedly(DoAll(TriggerCallbackInArg1(), Return(Status())));
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+                .WillOnce(DoAll(WithArg<1>(vibrator::TriggerCallback()),
+                                Return(ndk::ScopedAStatus::ok())));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
diff --git a/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp b/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
index 0c27fc7..9a7c69d 100644
--- a/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
@@ -16,7 +16,8 @@
 
 #define LOG_TAG "VibratorHalWrapperHidlV1_0Test"
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
+#include <android/persistable_bundle_aidl.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -27,17 +28,20 @@
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
 namespace V1_0 = android::hardware::vibrator::V1_0;
 
-using android::hardware::vibrator::Braking;
-using android::hardware::vibrator::CompositeEffect;
-using android::hardware::vibrator::CompositePrimitive;
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
-using android::hardware::vibrator::IVibrator;
-using android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::Braking;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::IVibrator;
+using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
+using aidl::android::os::PersistableBundle;
 
 using namespace android;
 using namespace std::chrono_literals;
@@ -316,6 +320,22 @@
     ASSERT_EQ(0, *callbackCounter.get());
 }
 
+TEST_F(VibratorHalWrapperHidlV1_0Test, TestPerformVendorEffectUnsupported) {
+    PersistableBundle vendorData; // empty
+    VendorEffect vendorEffect;
+    vendorEffect.vendorData = vendorData;
+    vendorEffect.strength = EffectStrength::LIGHT;
+    vendorEffect.scale = 1.0f;
+
+    std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
+    auto callback = vibrator::TestFactory::createCountingCallback(callbackCounter.get());
+
+    ASSERT_TRUE(mWrapper->performVendorEffect(vendorEffect, callback).isUnsupported());
+
+    // No callback is triggered.
+    ASSERT_EQ(0, *callbackCounter.get());
+}
+
 TEST_F(VibratorHalWrapperHidlV1_0Test, TestPerformComposedEffectUnsupported) {
     std::vector<CompositeEffect> emptyEffects, singleEffect, multipleEffects;
     singleEffect.push_back(
diff --git a/services/vibratorservice/test/VibratorHalWrapperHidlV1_1Test.cpp b/services/vibratorservice/test/VibratorHalWrapperHidlV1_1Test.cpp
index d887efc..b0a6537 100644
--- a/services/vibratorservice/test/VibratorHalWrapperHidlV1_1Test.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperHidlV1_1Test.cpp
@@ -16,7 +16,7 @@
 
 #define LOG_TAG "VibratorHalWrapperHidlV1_1Test"
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -26,13 +26,14 @@
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
 namespace V1_0 = android::hardware::vibrator::V1_0;
 namespace V1_1 = android::hardware::vibrator::V1_1;
 
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
 
 using namespace android;
 using namespace std::chrono_literals;
diff --git a/services/vibratorservice/test/VibratorHalWrapperHidlV1_2Test.cpp b/services/vibratorservice/test/VibratorHalWrapperHidlV1_2Test.cpp
index 26d9350..dfe3fa0 100644
--- a/services/vibratorservice/test/VibratorHalWrapperHidlV1_2Test.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperHidlV1_2Test.cpp
@@ -16,7 +16,7 @@
 
 #define LOG_TAG "VibratorHalWrapperHidlV1_2Test"
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -26,14 +26,15 @@
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
 namespace V1_0 = android::hardware::vibrator::V1_0;
 namespace V1_1 = android::hardware::vibrator::V1_1;
 namespace V1_2 = android::hardware::vibrator::V1_2;
 
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
 
 using namespace android;
 using namespace std::chrono_literals;
diff --git a/services/vibratorservice/test/VibratorHalWrapperHidlV1_3Test.cpp b/services/vibratorservice/test/VibratorHalWrapperHidlV1_3Test.cpp
index a6f1a74..8624332 100644
--- a/services/vibratorservice/test/VibratorHalWrapperHidlV1_3Test.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperHidlV1_3Test.cpp
@@ -16,7 +16,7 @@
 
 #define LOG_TAG "VibratorHalWrapperHidlV1_3Test"
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -27,6 +27,7 @@
 #include <vibratorservice/VibratorCallbackScheduler.h>
 #include <vibratorservice/VibratorHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
 namespace V1_0 = android::hardware::vibrator::V1_0;
@@ -34,9 +35,9 @@
 namespace V1_2 = android::hardware::vibrator::V1_2;
 namespace V1_3 = android::hardware::vibrator::V1_3;
 
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
-using android::hardware::vibrator::IVibrator;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::IVibrator;
 
 using namespace android;
 using namespace std::chrono_literals;
diff --git a/services/vibratorservice/test/VibratorManagerHalControllerTest.cpp b/services/vibratorservice/test/VibratorManagerHalControllerTest.cpp
index 11a8b66..c7214e0 100644
--- a/services/vibratorservice/test/VibratorManagerHalControllerTest.cpp
+++ b/services/vibratorservice/test/VibratorManagerHalControllerTest.cpp
@@ -24,6 +24,7 @@
 
 #include <vibratorservice/VibratorManagerHalController.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
 using android::vibrator::HalController;
@@ -35,6 +36,8 @@
 static const std::vector<int32_t> VIBRATOR_IDS = {1, 2};
 static constexpr int VIBRATOR_ID = 1;
 
+// -------------------------------------------------------------------------------------------------
+
 class MockManagerHalWrapper : public vibrator::ManagerHalWrapper {
 public:
     MOCK_METHOD(void, tryReconnect, (), (override));
@@ -51,6 +54,8 @@
     MOCK_METHOD(vibrator::HalResult<void>, cancelSynced, (), (override));
 };
 
+// -------------------------------------------------------------------------------------------------
+
 class VibratorManagerHalControllerTest : public Test {
 public:
     void SetUp() override {
@@ -106,6 +111,8 @@
     }
 };
 
+// -------------------------------------------------------------------------------------------------
+
 TEST_F(VibratorManagerHalControllerTest, TestInit) {
     mController->init();
     ASSERT_EQ(1, mConnectCounter);
diff --git a/services/vibratorservice/test/VibratorManagerHalWrapperAidlTest.cpp b/services/vibratorservice/test/VibratorManagerHalWrapperAidlTest.cpp
index dffc281..764d9be 100644
--- a/services/vibratorservice/test/VibratorManagerHalWrapperAidlTest.cpp
+++ b/services/vibratorservice/test/VibratorManagerHalWrapperAidlTest.cpp
@@ -23,84 +23,42 @@
 
 #include <vibratorservice/VibratorManagerHalWrapper.h>
 
+#include "test_mocks.h"
 #include "test_utils.h"
 
-using android::binder::Status;
-
-using android::hardware::vibrator::Braking;
-using android::hardware::vibrator::CompositeEffect;
-using android::hardware::vibrator::CompositePrimitive;
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
-using android::hardware::vibrator::IVibrator;
-using android::hardware::vibrator::IVibratorCallback;
-using android::hardware::vibrator::IVibratorManager;
-using android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::Braking;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::IVibrator;
+using aidl::android::hardware::vibrator::IVibratorCallback;
+using aidl::android::hardware::vibrator::IVibratorManager;
+using aidl::android::hardware::vibrator::PrimitivePwle;
 
 using namespace android;
 using namespace testing;
 
 static const auto OFF_FN = [](vibrator::HalWrapper* hal) { return hal->off(); };
 
-class MockBinder : public BBinder {
-public:
-    MOCK_METHOD(status_t, linkToDeath,
-                (const sp<DeathRecipient>& recipient, void* cookie, uint32_t flags), (override));
-    MOCK_METHOD(status_t, unlinkToDeath,
-                (const wp<DeathRecipient>& recipient, void* cookie, uint32_t flags,
-                 wp<DeathRecipient>* outRecipient),
-                (override));
-    MOCK_METHOD(status_t, pingBinder, (), (override));
-};
-
-class MockIVibrator : public IVibrator {
-public:
-    MOCK_METHOD(Status, getCapabilities, (int32_t * ret), (override));
-    MOCK_METHOD(Status, off, (), (override));
-    MOCK_METHOD(Status, on, (int32_t timeout, const sp<IVibratorCallback>& cb), (override));
-    MOCK_METHOD(Status, perform,
-                (Effect e, EffectStrength s, const sp<IVibratorCallback>& cb, int32_t* ret),
-                (override));
-    MOCK_METHOD(Status, getSupportedEffects, (std::vector<Effect> * ret), (override));
-    MOCK_METHOD(Status, setAmplitude, (float amplitude), (override));
-    MOCK_METHOD(Status, setExternalControl, (bool enabled), (override));
-    MOCK_METHOD(Status, getCompositionDelayMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getCompositionSizeMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getSupportedPrimitives, (std::vector<CompositePrimitive> * ret),
-                (override));
-    MOCK_METHOD(Status, getPrimitiveDuration, (CompositePrimitive p, int32_t* ret), (override));
-    MOCK_METHOD(Status, compose,
-                (const std::vector<CompositeEffect>& e, const sp<IVibratorCallback>& cb),
-                (override));
-    MOCK_METHOD(Status, composePwle,
-                (const std::vector<PrimitivePwle>& e, const sp<IVibratorCallback>& cb), (override));
-    MOCK_METHOD(Status, getSupportedAlwaysOnEffects, (std::vector<Effect> * ret), (override));
-    MOCK_METHOD(Status, alwaysOnEnable, (int32_t id, Effect e, EffectStrength s), (override));
-    MOCK_METHOD(Status, alwaysOnDisable, (int32_t id), (override));
-    MOCK_METHOD(Status, getQFactor, (float * ret), (override));
-    MOCK_METHOD(Status, getResonantFrequency, (float * ret), (override));
-    MOCK_METHOD(Status, getFrequencyResolution, (float* ret), (override));
-    MOCK_METHOD(Status, getFrequencyMinimum, (float* ret), (override));
-    MOCK_METHOD(Status, getBandwidthAmplitudeMap, (std::vector<float> * ret), (override));
-    MOCK_METHOD(Status, getPwlePrimitiveDurationMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getPwleCompositionSizeMax, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getSupportedBraking, (std::vector<Braking> * ret), (override));
-    MOCK_METHOD(int32_t, getInterfaceVersion, (), (override));
-    MOCK_METHOD(std::string, getInterfaceHash, (), (override));
-    MOCK_METHOD(IBinder*, onAsBinder, (), (override));
-};
+// -------------------------------------------------------------------------------------------------
 
 class MockIVibratorManager : public IVibratorManager {
 public:
-    MOCK_METHOD(Status, getCapabilities, (int32_t * ret), (override));
-    MOCK_METHOD(Status, getVibratorIds, (std::vector<int32_t> * ret), (override));
-    MOCK_METHOD(Status, getVibrator, (int32_t id, sp<IVibrator>* ret), (override));
-    MOCK_METHOD(Status, prepareSynced, (const std::vector<int32_t>& ids), (override));
-    MOCK_METHOD(Status, triggerSynced, (const sp<IVibratorCallback>& cb), (override));
-    MOCK_METHOD(Status, cancelSynced, (), (override));
-    MOCK_METHOD(int32_t, getInterfaceVersion, (), (override));
-    MOCK_METHOD(std::string, getInterfaceHash, (), (override));
-    MOCK_METHOD(IBinder*, onAsBinder, (), (override));
+    MockIVibratorManager() = default;
+
+    MOCK_METHOD(ndk::ScopedAStatus, getCapabilities, (int32_t * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getVibratorIds, (std::vector<int32_t> * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getVibrator, (int32_t id, std::shared_ptr<IVibrator>* ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, prepareSynced, (const std::vector<int32_t>& ids), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, triggerSynced, (const std::shared_ptr<IVibratorCallback>& cb),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, cancelSynced, (), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getInterfaceVersion, (int32_t*), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getInterfaceHash, (std::string*), (override));
+    MOCK_METHOD(ndk::SpAIBinder, asBinder, (), (override));
+    MOCK_METHOD(bool, isRemote, (), (override));
 };
 
 // -------------------------------------------------------------------------------------------------
@@ -108,9 +66,8 @@
 class VibratorManagerHalWrapperAidlTest : public Test {
 public:
     void SetUp() override {
-        mMockBinder = new StrictMock<MockBinder>();
-        mMockVibrator = new StrictMock<MockIVibrator>();
-        mMockHal = new StrictMock<MockIVibratorManager>();
+        mMockVibrator = ndk::SharedRefBase::make<StrictMock<vibrator::MockIVibrator>>();
+        mMockHal = ndk::SharedRefBase::make<StrictMock<MockIVibratorManager>>();
         mMockScheduler = std::make_shared<StrictMock<vibrator::MockCallbackScheduler>>();
         mWrapper = std::make_unique<vibrator::AidlManagerHalWrapper>(mMockScheduler, mMockHal);
         ASSERT_NE(mWrapper, nullptr);
@@ -119,9 +76,8 @@
 protected:
     std::shared_ptr<StrictMock<vibrator::MockCallbackScheduler>> mMockScheduler = nullptr;
     std::unique_ptr<vibrator::ManagerHalWrapper> mWrapper = nullptr;
-    sp<StrictMock<MockIVibratorManager>> mMockHal = nullptr;
-    sp<StrictMock<MockIVibrator>> mMockVibrator = nullptr;
-    sp<StrictMock<MockBinder>> mMockBinder = nullptr;
+    std::shared_ptr<StrictMock<MockIVibratorManager>> mMockHal = nullptr;
+    std::shared_ptr<StrictMock<vibrator::MockIVibrator>> mMockVibrator = nullptr;
 };
 
 // -------------------------------------------------------------------------------------------------
@@ -129,32 +85,13 @@
 static const std::vector<int32_t> kVibratorIds = {1, 2};
 static constexpr int kVibratorId = 1;
 
-ACTION(TriggerCallback) {
-    if (arg0 != nullptr) {
-        arg0->onComplete();
-    }
-}
-
-TEST_F(VibratorManagerHalWrapperAidlTest, TestPing) {
-    EXPECT_CALL(*mMockHal.get(), onAsBinder())
-            .Times(Exactly(2))
-            .WillRepeatedly(Return(mMockBinder.get()));
-    EXPECT_CALL(*mMockBinder.get(), pingBinder())
-            .Times(Exactly(2))
-            .WillOnce(Return(android::OK))
-            .WillRepeatedly(Return(android::DEAD_OBJECT));
-
-    ASSERT_TRUE(mWrapper->ping().isOk());
-    ASSERT_TRUE(mWrapper->ping().isFailed());
-}
-
 TEST_F(VibratorManagerHalWrapperAidlTest, TestGetCapabilitiesDoesNotCacheFailedResult) {
     EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
             .Times(Exactly(3))
-            .WillOnce(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(IVibratorManager::CAP_SYNC), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(IVibratorManager::CAP_SYNC),
+                            Return(ndk::ScopedAStatus::ok())));
 
     ASSERT_TRUE(mWrapper->getCapabilities().isUnsupported());
     ASSERT_TRUE(mWrapper->getCapabilities().isFailed());
@@ -167,7 +104,8 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestGetCapabilitiesCachesResult) {
     EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(IVibratorManager::CAP_SYNC), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(IVibratorManager::CAP_SYNC),
+                            Return(ndk::ScopedAStatus::ok())));
 
     std::vector<std::thread> threads;
     for (int i = 0; i < 10; i++) {
@@ -187,10 +125,9 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestGetVibratorIdsDoesNotCacheFailedResult) {
     EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
             .Times(Exactly(3))
-            .WillOnce(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
     ASSERT_TRUE(mWrapper->getVibratorIds().isUnsupported());
     ASSERT_TRUE(mWrapper->getVibratorIds().isFailed());
@@ -203,7 +140,7 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestGetVibratorIdsCachesResult) {
     EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
     std::vector<std::thread> threads;
     for (int i = 0; i < 10; i++) {
@@ -225,11 +162,11 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
         EXPECT_CALL(*mMockHal.get(), getVibrator(Eq(kVibratorId), _))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(mMockVibrator), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())));
     }
 
     auto result = mWrapper->getVibrator(kVibratorId);
@@ -241,7 +178,7 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestGetVibratorWithInvalidIdFails) {
     EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
     ASSERT_TRUE(mWrapper->getVibrator(0).isFailed());
 }
@@ -249,20 +186,21 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestGetVibratorRecoversVibratorPointer) {
     EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
     EXPECT_CALL(*mMockHal.get(), getVibrator(Eq(kVibratorId), _))
             .Times(Exactly(3))
             .WillOnce(DoAll(SetArgPointee<1>(nullptr),
-                            Return(Status::fromExceptionCode(
-                                    Status::Exception::EX_TRANSACTION_FAILED))))
-            .WillRepeatedly(DoAll(SetArgPointee<1>(mMockVibrator), Return(Status())));
+                            Return(ndk::ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED))))
+            // ndk::ScopedAStatus::ok() cannot be copy-constructed so can't use WillRepeatedly
+            .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())))
+            .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())));
 
     EXPECT_CALL(*mMockVibrator.get(), off())
             .Times(Exactly(3))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_TRANSACTION_FAILED)))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_TRANSACTION_FAILED)))
-            .WillRepeatedly(Return(Status()));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED)))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_TRANSACTION_FAILED)))
+            .WillOnce(Return(ndk::ScopedAStatus::ok()));
 
     // Get vibrator controller is successful even if first getVibrator.
     auto result = mWrapper->getVibrator(kVibratorId);
@@ -281,18 +219,19 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestPrepareSynced) {
     EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
     EXPECT_CALL(*mMockHal.get(), getVibrator(_, _))
             .Times(Exactly(2))
-            .WillRepeatedly(DoAll(SetArgPointee<1>(mMockVibrator), Return(Status())));
+            // ndk::ScopedAStatus::ok() cannot be copy-constructed so can't use WillRepeatedly
+            .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())))
+            .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())));
 
     EXPECT_CALL(*mMockHal.get(), prepareSynced(Eq(kVibratorIds)))
             .Times(Exactly(3))
-            .WillOnce(
-                    Return(Status::fromExceptionCode(Status::Exception::EX_UNSUPPORTED_OPERATION)))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(Return(Status()));
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION)))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(Return(ndk::ScopedAStatus::ok()));
 
     ASSERT_TRUE(mWrapper->getVibratorIds().isOk());
     ASSERT_TRUE(mWrapper->prepareSynced(kVibratorIds).isUnsupported());
@@ -305,13 +244,13 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(DoAll(SetArgPointee<0>(IVibratorManager::CAP_TRIGGER_CALLBACK),
-                                      Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(IVibratorManager::CAP_TRIGGER_CALLBACK),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), triggerSynced(_))
                 .Times(Exactly(3))
-                .WillOnce(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)))
-                .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-                .WillRepeatedly(DoAll(TriggerCallback(), Return(Status())));
+                .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)))
+                .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+                .WillOnce(DoAll(vibrator::TriggerCallback(), Return(ndk::ScopedAStatus::ok())));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -328,11 +267,11 @@
         InSequence seq;
         EXPECT_CALL(*mMockHal.get(), getCapabilities(_))
                 .Times(Exactly(1))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<0>(IVibratorManager::CAP_SYNC), Return(Status())));
+                .WillOnce(DoAll(SetArgPointee<0>(IVibratorManager::CAP_SYNC),
+                                Return(ndk::ScopedAStatus::ok())));
         EXPECT_CALL(*mMockHal.get(), triggerSynced(Eq(nullptr)))
                 .Times(Exactly(1))
-                .WillRepeatedly(Return(Status()));
+                .WillOnce(Return(ndk::ScopedAStatus::ok()));
     }
 
     std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
@@ -345,9 +284,9 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestCancelSynced) {
     EXPECT_CALL(*mMockHal.get(), cancelSynced())
             .Times(Exactly(3))
-            .WillOnce(Return(Status::fromStatusT(UNKNOWN_TRANSACTION)))
-            .WillOnce(Return(Status::fromExceptionCode(Status::Exception::EX_SECURITY)))
-            .WillRepeatedly(Return(Status()));
+            .WillOnce(Return(ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION)))
+            .WillOnce(Return(ndk::ScopedAStatus::fromExceptionCode(EX_SECURITY)))
+            .WillOnce(Return(ndk::ScopedAStatus::ok()));
 
     ASSERT_TRUE(mWrapper->cancelSynced().isUnsupported());
     ASSERT_TRUE(mWrapper->cancelSynced().isFailed());
@@ -357,13 +296,17 @@
 TEST_F(VibratorManagerHalWrapperAidlTest, TestCancelSyncedReloadsAllControllers) {
     EXPECT_CALL(*mMockHal.get(), getVibratorIds(_))
             .Times(Exactly(1))
-            .WillRepeatedly(DoAll(SetArgPointee<0>(kVibratorIds), Return(Status())));
+            .WillOnce(DoAll(SetArgPointee<0>(kVibratorIds), Return(ndk::ScopedAStatus::ok())));
 
     EXPECT_CALL(*mMockHal.get(), getVibrator(_, _))
             .Times(Exactly(2))
-            .WillRepeatedly(DoAll(SetArgPointee<1>(mMockVibrator), Return(Status())));
+            // ndk::ScopedAStatus::ok() cannot be copy-constructed so can't use WillRepeatedly
+            .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())))
+            .WillOnce(DoAll(SetArgPointee<1>(mMockVibrator), Return(ndk::ScopedAStatus::ok())));
 
-    EXPECT_CALL(*mMockHal.get(), cancelSynced()).Times(Exactly(1)).WillRepeatedly(Return(Status()));
+    EXPECT_CALL(*mMockHal.get(), cancelSynced())
+            .Times(Exactly(1))
+            .WillOnce(Return(ndk::ScopedAStatus::ok()));
 
     ASSERT_TRUE(mWrapper->getVibratorIds().isOk());
     ASSERT_TRUE(mWrapper->cancelSynced().isOk());
diff --git a/services/vibratorservice/test/VibratorManagerHalWrapperLegacyTest.cpp b/services/vibratorservice/test/VibratorManagerHalWrapperLegacyTest.cpp
index 0850ef3..7877236 100644
--- a/services/vibratorservice/test/VibratorManagerHalWrapperLegacyTest.cpp
+++ b/services/vibratorservice/test/VibratorManagerHalWrapperLegacyTest.cpp
@@ -23,10 +23,12 @@
 
 #include <vibratorservice/VibratorManagerHalWrapper.h>
 
-using android::hardware::vibrator::CompositeEffect;
-using android::hardware::vibrator::CompositePrimitive;
-using android::hardware::vibrator::Effect;
-using android::hardware::vibrator::EffectStrength;
+#include "test_mocks.h"
+
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
 
 using std::chrono::milliseconds;
 
@@ -35,27 +37,16 @@
 
 // -------------------------------------------------------------------------------------------------
 
-class MockHalController : public vibrator::HalController {
-public:
-    MockHalController() = default;
-    virtual ~MockHalController() = default;
-
-    MOCK_METHOD(bool, init, (), (override));
-    MOCK_METHOD(void, tryReconnect, (), (override));
-};
-
-// -------------------------------------------------------------------------------------------------
-
 class VibratorManagerHalWrapperLegacyTest : public Test {
 public:
     void SetUp() override {
-        mMockController = std::make_shared<StrictMock<MockHalController>>();
+        mMockController = std::make_shared<StrictMock<vibrator::MockHalController>>();
         mWrapper = std::make_unique<vibrator::LegacyManagerHalWrapper>(mMockController);
         ASSERT_NE(mWrapper, nullptr);
     }
 
 protected:
-    std::shared_ptr<StrictMock<MockHalController>> mMockController = nullptr;
+    std::shared_ptr<StrictMock<vibrator::MockHalController>> mMockController = nullptr;
     std::unique_ptr<vibrator::ManagerHalWrapper> mWrapper = nullptr;
 };
 
diff --git a/services/vibratorservice/test/test_mocks.h b/services/vibratorservice/test/test_mocks.h
new file mode 100644
index 0000000..2f9451e
--- /dev/null
+++ b/services/vibratorservice/test/test_mocks.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *            http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef VIBRATORSERVICE_UNITTEST_MOCKS_H_
+#define VIBRATORSERVICE_UNITTEST_MOCKS_H_
+
+#include <gmock/gmock.h>
+
+#include <aidl/android/hardware/vibrator/IVibrator.h>
+
+#include <vibratorservice/VibratorCallbackScheduler.h>
+#include <vibratorservice/VibratorHalController.h>
+#include <vibratorservice/VibratorHalWrapper.h>
+
+namespace android {
+
+namespace vibrator {
+
+using std::chrono::milliseconds;
+
+using namespace testing;
+
+using aidl::android::hardware::vibrator::Braking;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::Effect;
+using aidl::android::hardware::vibrator::EffectStrength;
+using aidl::android::hardware::vibrator::IVibrator;
+using aidl::android::hardware::vibrator::IVibratorCallback;
+using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::VendorEffect;
+
+// -------------------------------------------------------------------------------------------------
+
+class MockIVibrator : public IVibrator {
+public:
+    MockIVibrator() = default;
+
+    MOCK_METHOD(ndk::ScopedAStatus, getCapabilities, (int32_t * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, off, (), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, on,
+                (int32_t timeout, const std::shared_ptr<IVibratorCallback>& cb), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, perform,
+                (Effect e, EffectStrength s, const std::shared_ptr<IVibratorCallback>& cb,
+                 int32_t* ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, performVendorEffect,
+                (const VendorEffect& e, const std::shared_ptr<IVibratorCallback>& cb), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getSupportedEffects, (std::vector<Effect> * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, setAmplitude, (float amplitude), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, setExternalControl, (bool enabled), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getCompositionDelayMax, (int32_t * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getCompositionSizeMax, (int32_t * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getSupportedPrimitives, (std::vector<CompositePrimitive> * ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getPrimitiveDuration, (CompositePrimitive p, int32_t* ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, compose,
+                (const std::vector<CompositeEffect>& e,
+                 const std::shared_ptr<IVibratorCallback>& cb),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, composePwle,
+                (const std::vector<PrimitivePwle>& e, const std::shared_ptr<IVibratorCallback>& cb),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getSupportedAlwaysOnEffects, (std::vector<Effect> * ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, alwaysOnEnable, (int32_t id, Effect e, EffectStrength s),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, alwaysOnDisable, (int32_t id), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getQFactor, (float* ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getResonantFrequency, (float* ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getFrequencyResolution, (float* ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getFrequencyMinimum, (float* ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getBandwidthAmplitudeMap, (std::vector<float> * ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getPwlePrimitiveDurationMax, (int32_t * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getPwleCompositionSizeMax, (int32_t * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getSupportedBraking, (std::vector<Braking> * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getInterfaceVersion, (int32_t*), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getInterfaceHash, (std::string*), (override));
+    MOCK_METHOD(ndk::SpAIBinder, asBinder, (), (override));
+    MOCK_METHOD(bool, isRemote, (), (override));
+};
+
+// gmock requirement to provide a WithArg<0>(TriggerCallback()) matcher
+typedef void TriggerCallbackFunction(const std::shared_ptr<IVibratorCallback>&);
+
+class TriggerCallbackAction : public ActionInterface<TriggerCallbackFunction> {
+public:
+    explicit TriggerCallbackAction() {}
+
+    virtual Result Perform(const ArgumentTuple& args) {
+        const std::shared_ptr<IVibratorCallback>& callback = get<0>(args);
+        if (callback) {
+            callback->onComplete();
+        }
+    }
+};
+
+inline Action<TriggerCallbackFunction> TriggerCallback() {
+    return MakeAction(new TriggerCallbackAction());
+}
+
+// -------------------------------------------------------------------------------------------------
+
+class MockCallbackScheduler : public CallbackScheduler {
+public:
+    MOCK_METHOD(void, schedule, (std::function<void()> callback, std::chrono::milliseconds delay),
+                (override));
+};
+
+ACTION(TriggerSchedulerCallback) {
+    arg0();
+}
+
+// -------------------------------------------------------------------------------------------------
+
+class MockHalWrapper : public HalWrapper {
+public:
+    MockHalWrapper(std::shared_ptr<CallbackScheduler> scheduler) : HalWrapper(scheduler) {}
+    virtual ~MockHalWrapper() = default;
+
+    MOCK_METHOD(vibrator::HalResult<void>, ping, (), (override));
+    MOCK_METHOD(void, tryReconnect, (), (override));
+    MOCK_METHOD(vibrator::HalResult<void>, on,
+                (milliseconds timeout, const std::function<void()>& completionCallback),
+                (override));
+    MOCK_METHOD(vibrator::HalResult<void>, off, (), (override));
+    MOCK_METHOD(vibrator::HalResult<void>, setAmplitude, (float amplitude), (override));
+    MOCK_METHOD(vibrator::HalResult<void>, setExternalControl, (bool enabled), (override));
+    MOCK_METHOD(vibrator::HalResult<void>, alwaysOnEnable,
+                (int32_t id, Effect effect, EffectStrength strength), (override));
+    MOCK_METHOD(vibrator::HalResult<void>, alwaysOnDisable, (int32_t id), (override));
+    MOCK_METHOD(vibrator::HalResult<milliseconds>, performEffect,
+                (Effect effect, EffectStrength strength,
+                 const std::function<void()>& completionCallback),
+                (override));
+    MOCK_METHOD(vibrator::HalResult<vibrator::Capabilities>, getCapabilitiesInternal, (),
+                (override));
+
+    CallbackScheduler* getCallbackScheduler() { return mCallbackScheduler.get(); }
+};
+
+class MockHalController : public vibrator::HalController {
+public:
+    MockHalController() = default;
+    virtual ~MockHalController() = default;
+
+    MOCK_METHOD(bool, init, (), (override));
+    MOCK_METHOD(void, tryReconnect, (), (override));
+};
+
+// -------------------------------------------------------------------------------------------------
+
+} // namespace vibrator
+
+} // namespace android
+
+#endif // VIBRATORSERVICE_UNITTEST_MOCKS_H_
diff --git a/services/vibratorservice/test/test_utils.h b/services/vibratorservice/test/test_utils.h
index 715c221..e99965c 100644
--- a/services/vibratorservice/test/test_utils.h
+++ b/services/vibratorservice/test/test_utils.h
@@ -17,7 +17,7 @@
 #ifndef VIBRATORSERVICE_UNITTEST_UTIL_H_
 #define VIBRATORSERVICE_UNITTEST_UTIL_H_
 
-#include <android/hardware/vibrator/IVibrator.h>
+#include <aidl/android/hardware/vibrator/IVibrator.h>
 
 #include <vibratorservice/VibratorHalWrapper.h>
 
@@ -25,24 +25,12 @@
 
 namespace vibrator {
 
-using ::android::hardware::vibrator::ActivePwle;
-using ::android::hardware::vibrator::Braking;
-using ::android::hardware::vibrator::BrakingPwle;
-using ::android::hardware::vibrator::CompositeEffect;
-using ::android::hardware::vibrator::CompositePrimitive;
-using ::android::hardware::vibrator::PrimitivePwle;
-
-// -------------------------------------------------------------------------------------------------
-
-class MockCallbackScheduler : public vibrator::CallbackScheduler {
-public:
-    MOCK_METHOD(void, schedule, (std::function<void()> callback, std::chrono::milliseconds delay),
-                (override));
-};
-
-ACTION(TriggerSchedulerCallback) {
-    arg0();
-}
+using aidl::android::hardware::vibrator::ActivePwle;
+using aidl::android::hardware::vibrator::Braking;
+using aidl::android::hardware::vibrator::BrakingPwle;
+using aidl::android::hardware::vibrator::CompositeEffect;
+using aidl::android::hardware::vibrator::CompositePrimitive;
+using aidl::android::hardware::vibrator::PrimitivePwle;
 
 // -------------------------------------------------------------------------------------------------
 
diff --git a/vulkan/libvulkan/api_gen.cpp b/vulkan/libvulkan/api_gen.cpp
index a9706bc..a3fe33e 100644
--- a/vulkan/libvulkan/api_gen.cpp
+++ b/vulkan/libvulkan/api_gen.cpp
@@ -178,7 +178,7 @@
     INIT_PROC(false, instance, GetPhysicalDeviceExternalSemaphoreProperties);
     INIT_PROC(false, instance, GetPhysicalDeviceExternalFenceProperties);
     INIT_PROC(false, instance, EnumeratePhysicalDeviceGroups);
-    INIT_PROC_EXT(KHR_swapchain, false, instance, GetPhysicalDevicePresentRectanglesKHR);
+    INIT_PROC_EXT(KHR_swapchain, true, instance, GetPhysicalDevicePresentRectanglesKHR);
     INIT_PROC(false, instance, GetPhysicalDeviceToolProperties);
     // clang-format on
 
@@ -325,9 +325,9 @@
     INIT_PROC(false, dev, BindBufferMemory2);
     INIT_PROC(false, dev, BindImageMemory2);
     INIT_PROC(false, dev, CmdSetDeviceMask);
-    INIT_PROC_EXT(KHR_swapchain, false, dev, GetDeviceGroupPresentCapabilitiesKHR);
-    INIT_PROC_EXT(KHR_swapchain, false, dev, GetDeviceGroupSurfacePresentModesKHR);
-    INIT_PROC_EXT(KHR_swapchain, false, dev, AcquireNextImage2KHR);
+    INIT_PROC_EXT(KHR_swapchain, true, dev, GetDeviceGroupPresentCapabilitiesKHR);
+    INIT_PROC_EXT(KHR_swapchain, true, dev, GetDeviceGroupSurfacePresentModesKHR);
+    INIT_PROC_EXT(KHR_swapchain, true, dev, AcquireNextImage2KHR);
     INIT_PROC(false, dev, CmdDispatchBase);
     INIT_PROC(false, dev, CreateDescriptorUpdateTemplate);
     INIT_PROC(false, dev, DestroyDescriptorUpdateTemplate);
@@ -659,6 +659,8 @@
         "vkGetDrmDisplayEXT",
         "vkGetInstanceProcAddr",
         "vkGetPhysicalDeviceCalibrateableTimeDomainsEXT",
+        "vkGetPhysicalDeviceCalibrateableTimeDomainsKHR",
+        "vkGetPhysicalDeviceCooperativeMatrixPropertiesKHR",
         "vkGetPhysicalDeviceDisplayPlaneProperties2KHR",
         "vkGetPhysicalDeviceDisplayProperties2KHR",
         "vkGetPhysicalDeviceExternalBufferProperties",
@@ -703,6 +705,7 @@
         "vkGetPhysicalDeviceToolProperties",
         "vkGetPhysicalDeviceToolPropertiesEXT",
         "vkGetPhysicalDeviceVideoCapabilitiesKHR",
+        "vkGetPhysicalDeviceVideoEncodeQualityLevelPropertiesKHR",
         "vkGetPhysicalDeviceVideoFormatPropertiesKHR",
         "vkSubmitDebugUtilsMessageEXT",
     };
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 9e67725..00e987f 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -1473,23 +1473,14 @@
         image_format_properties.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2;
         image_format_properties.pNext = &ahb_usage;
 
-        if (instance_dispatch.GetPhysicalDeviceImageFormatProperties2) {
-            VkResult result = instance_dispatch.GetPhysicalDeviceImageFormatProperties2(
-                pdev, &image_format_info, &image_format_properties);
-            if (result != VK_SUCCESS) {
-                ALOGE("VkGetPhysicalDeviceImageFormatProperties2 for AHB usage failed: %d", result);
-                return VK_ERROR_SURFACE_LOST_KHR;
-            }
-        }
-        else {
-            VkResult result = instance_dispatch.GetPhysicalDeviceImageFormatProperties2KHR(
-                pdev, &image_format_info,
-                &image_format_properties);
-            if (result != VK_SUCCESS) {
-                ALOGE("VkGetPhysicalDeviceImageFormatProperties2KHR for AHB usage failed: %d",
-                    result);
-                return VK_ERROR_SURFACE_LOST_KHR;
-            }
+        VkResult result = GetPhysicalDeviceImageFormatProperties2(
+            pdev, &image_format_info, &image_format_properties);
+        if (result != VK_SUCCESS) {
+            ALOGE(
+                "VkGetPhysicalDeviceImageFormatProperties2 for AHB usage "
+                "failed: %d",
+                result);
+            return VK_ERROR_SURFACE_LOST_KHR;
         }
 
         // Determine if USAGE_FRONT_BUFFER is needed.
diff --git a/vulkan/scripts/generator_common.py b/vulkan/scripts/generator_common.py
index 866c1b7..6b4cbad 100644
--- a/vulkan/scripts/generator_common.py
+++ b/vulkan/scripts/generator_common.py
@@ -351,9 +351,50 @@
                           'external', 'vulkan-headers', 'registry', 'vk.xml')
   tree = element_tree.parse(registry)
   root = tree.getroot()
+
+  for exts in root.iter('extensions'):
+    for extension in exts.iter('extension'):
+      if 'vulkan' not in extension.get('supported').split(','):
+        # ANDROID_native_buffer is a weird special case -- it's declared in vk.xml as
+        # disabled but we _do_ want to generate plumbing for it in the Android loader.
+        if extension.get('name') != 'VK_ANDROID_native_buffer':
+          print('skip extension disabled or not for vulkan: ' + extension.get('name'))
+          continue
+
+      apiversion = 'VK_VERSION_1_0'
+      if extension.tag == 'extension':
+        extname = extension.get('name')
+        if (extension.get('type') == 'instance' and
+            extension.get('promotedto') is not None):
+          promoted_inst_ext_dict[extname] = \
+              version_2_api_version(extension.get('promotedto'))
+        for req in extension.iter('require'):
+          if req.get('feature') is not None:
+            apiversion = req.get('feature')
+          for commands in req:
+            if commands.tag == 'command':
+              cmd_name = commands.get('name')
+              if cmd_name not in extension_dict:
+                extension_dict[cmd_name] = extname
+                version_dict[cmd_name] = apiversion
+
+  for feature in root.iter('feature'):
+    if 'vulkan' not in feature.get('api').split(','):
+      continue
+
+    apiversion = feature.get('name')
+    for req in feature.iter('require'):
+      for command in req:
+        if command.tag == 'command':
+          cmd_name = command.get('name')
+          version_dict[cmd_name] = apiversion
+
   for commands in root.iter('commands'):
     for command in commands:
       if command.tag == 'command':
+        if command.get('api') == 'vulkansc':
+          continue
+
         parameter_list = []
         protoset = False
         cmd_name = ''
@@ -361,12 +402,18 @@
         if command.get('alias') is not None:
           alias = command.get('alias')
           cmd_name = command.get('name')
-          alias_dict[cmd_name] = alias
-          command_list.append(cmd_name)
-          param_dict[cmd_name] = param_dict[alias].copy()
-          return_type_dict[cmd_name] = return_type_dict[alias]
+          # At this stage all valid commands have been added to the version
+          # dict so we can use it to filter valid commands
+          if cmd_name in version_dict:
+            alias_dict[cmd_name] = alias
+            command_list.append(cmd_name)
+            param_dict[cmd_name] = param_dict[alias].copy()
+            return_type_dict[cmd_name] = return_type_dict[alias]
         for params in command:
           if params.tag == 'param':
+            if params.get('api') == 'vulkansc':
+              # skip SC-only param variant
+              continue
             param_type = ''
             if params.text is not None and params.text.strip():
               param_type = params.text.strip() + ' '
@@ -387,39 +434,13 @@
                 cmd_type = c.text
               if c.tag == 'name':
                 cmd_name = c.text
-                protoset = True
-                command_list.append(cmd_name)
-                return_type_dict[cmd_name] = cmd_type
+                if cmd_name in version_dict:
+                  protoset = True
+                  command_list.append(cmd_name)
+                  return_type_dict[cmd_name] = cmd_type
         if protoset:
           param_dict[cmd_name] = parameter_list.copy()
 
-  for exts in root.iter('extensions'):
-    for extension in exts:
-      apiversion = 'VK_VERSION_1_0'
-      if extension.tag == 'extension':
-        extname = extension.get('name')
-        if (extension.get('type') == 'instance' and
-            extension.get('promotedto') is not None):
-          promoted_inst_ext_dict[extname] = \
-              version_2_api_version(extension.get('promotedto'))
-        for req in extension:
-          if req.get('feature') is not None:
-            apiversion = req.get('feature')
-          for commands in req:
-            if commands.tag == 'command':
-              cmd_name = commands.get('name')
-              if cmd_name not in extension_dict:
-                extension_dict[cmd_name] = extname
-                version_dict[cmd_name] = apiversion
-
-  for feature in root.iter('feature'):
-    apiversion = feature.get('name')
-    for req in feature:
-      for command in req:
-        if command.tag == 'command':
-          cmd_name = command.get('name')
-          if cmd_name in command_list:
-            version_dict[cmd_name] = apiversion
 
   version_code_set = set()
   for version in version_dict.values():
diff --git a/vulkan/scripts/null_generator.py b/vulkan/scripts/null_generator.py
index e9faef6..3624c1d 100644
--- a/vulkan/scripts/null_generator.py
+++ b/vulkan/scripts/null_generator.py
@@ -89,6 +89,8 @@
     f.write(gencom.copyright_and_warning(2015))
 
     f.write("""\
+#include <android/hardware_buffer.h>
+
 #include <algorithm>
 
 #include "null_driver_gen.h"