Merge "Implement the VK_KHR_swapchain_mutable_format device extension in the vulkan loader" into main

commit: 16f184b3e52f91ee09cdc981a33dd600ac4a69db [log] [tgz]
author: Tom Murphy <tomnom@google.com> Fri Aug 30 22:51:47 2024 +0000
committer: Android (Google) Code Review <android-gerrit@google.com> Fri Aug 30 22:51:47 2024 +0000
tree: df8e73ce2f9baab757465648b759835f2ee213b0
parent: 48604fb057c83150a9f21af81eb970cf9ed70af7 [diff]
parent: ea32184c013e10610a74c9d2a1727ea77ac1bada [diff]
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 2ce3fb0..df1ef29 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg

@@ -24,6 +24,7 @@
                libs/nativewindow/
                libs/renderengine/
                libs/ui/
+               libs/vibrator/
                libs/vr/
                opengl/libs/
                services/bufferhub/

diff --git a/cmds/atrace/atrace_userdebug.rc b/cmds/atrace/atrace_userdebug.rc
index fa7be18..041ffe1 100644
--- a/cmds/atrace/atrace_userdebug.rc
+++ b/cmds/atrace/atrace_userdebug.rc

@@ -24,3 +24,7 @@
     chmod 0666 /sys/kernel/debug/tracing/events/raw_syscalls/sys_enter/filter
     chmod 0666 /sys/kernel/tracing/events/raw_syscalls/sys_exit/filter
     chmod 0666 /sys/kernel/debug/tracing/events/raw_syscalls/sys_exit/filter
+
+    # Allow traced_probes to use the kprobe interface
+    chmod 0666 /sys/kernel/debug/tracing/kprobe_events
+    chmod 0666 /sys/kernel/tracing/kprobe_events

diff --git a/cmds/flatland/GLHelper.cpp b/cmds/flatland/GLHelper.cpp
index c163095..77e7328 100644
--- a/cmds/flatland/GLHelper.cpp
+++ b/cmds/flatland/GLHelper.cpp

@@ -18,6 +18,7 @@
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/SurfaceComposerClient.h>
 #include <ui/DisplayMode.h>
 
@@ -202,6 +203,14 @@
 
 bool GLHelper::createNamedSurfaceTexture(GLuint name, uint32_t w, uint32_t h,
         sp<GLConsumer>* glConsumer, EGLSurface* surface) {
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    sp<GLConsumer> glc = new GLConsumer(name, GL_TEXTURE_EXTERNAL_OES, false, true);
+    glc->setDefaultBufferSize(w, h);
+    glc->getSurface()->setMaxDequeuedBufferCount(2);
+    glc->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER);
+
+    sp<ANativeWindow> anw = glc->getSurface();
+#else
     sp<IGraphicBufferProducer> producer;
     sp<IGraphicBufferConsumer> consumer;
     BufferQueue::createBufferQueue(&producer, &consumer);
@@ -212,6 +221,7 @@
     glc->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER);
 
     sp<ANativeWindow> anw = new Surface(producer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     EGLSurface s = eglCreateWindowSurface(mDisplay, mConfig, anw.get(), nullptr);
     if (s == EGL_NO_SURFACE) {
         fprintf(stderr, "eglCreateWindowSurface error: %#x\n", eglGetError());

diff --git a/cmds/installd/otapreopt_script.sh b/cmds/installd/otapreopt_script.sh
index 28bd793..b7ad331 100644
--- a/cmds/installd/otapreopt_script.sh
+++ b/cmds/installd/otapreopt_script.sh

@@ -50,6 +50,37 @@
   exit 1
 fi
 
+# A source that infinitely emits arbitrary lines.
+# When connected to STDIN of another process, this source keeps STDIN open until
+# the consumer process closes STDIN or this script dies.
+function infinite_source {
+  while echo .; do
+    sleep 1
+  done
+}
+
+PR_DEXOPT_JOB_VERSION="$(pm art pr-dexopt-job --version)"
+if (( $? == 0 )) && (( $PR_DEXOPT_JOB_VERSION >= 3 )); then
+  # Delegate to Pre-reboot Dexopt, a feature of ART Service.
+  # ART Service decides what to do with this request:
+  # - If Pre-reboot Dexopt is disabled or unsupported, the command returns
+  #   non-zero. This is always the case if the current system is Android 14 or
+  #   earlier.
+  # - If Pre-reboot Dexopt is enabled in synchronous mode, the command blocks
+  #   until Pre-reboot Dexopt finishes, and returns zero no matter it succeeds or
+  #   not. This is the default behavior if the current system is Android 15.
+  # - If Pre-reboot Dexopt is enabled in asynchronous mode, the command schedules
+  #   an asynchronous job and returns 0 immediately. The job will then run by the
+  #   job scheduler when the device is idle and charging.
+  if infinite_source | pm art on-ota-staged --slot "$TARGET_SLOT_SUFFIX"; then
+    # Handled by Pre-reboot Dexopt.
+    exit 0
+  fi
+  echo "Pre-reboot Dexopt not enabled. Fall back to otapreopt."
+else
+  echo "Pre-reboot Dexopt is too old. Fall back to otapreopt."
+fi
+
 if [ "$(/system/bin/otapreopt_chroot --version)" != 2 ]; then
   # We require an updated chroot wrapper that reads dexopt commands from stdin.
   # Even if we kept compat with the old binary, the OTA preopt wouldn't work due

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--- /dev/null
+++ b/cmds/installd/tests/corpus/seed-2024-08-29-98
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new file mode 100644
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--- /dev/null
+++ b/cmds/installd/tests/corpus/seed-2024-08-29-99
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diff --git a/cmds/installd/tests/installd_dexopt_test.cpp b/cmds/installd/tests/installd_dexopt_test.cpp
index ee91d80..e89543e 100644
--- a/cmds/installd/tests/installd_dexopt_test.cpp
+++ b/cmds/installd/tests/installd_dexopt_test.cpp

@@ -1449,7 +1449,7 @@
 
 class BootProfileTest : public ProfileTest {
   public:
-    std::vector<const std::string> extra_apps_;
+    std::vector<std::string> extra_apps_;
     std::vector<int64_t> extra_ce_data_inodes_;
 
     virtual void SetUp() {

diff --git a/cmds/installd/tests/installd_utils_test.cpp b/cmds/installd/tests/installd_utils_test.cpp
index 910cd63..19201b2 100644
--- a/cmds/installd/tests/installd_utils_test.cpp
+++ b/cmds/installd/tests/installd_utils_test.cpp

@@ -101,6 +101,9 @@
     EXPECT_EQ(0, validate_apk_path(path2))
             << path2 << " should be allowed as a valid path";
 
+    const char* path3 = TEST_APP_DIR "..example..com../example.apk";
+    EXPECT_EQ(0, validate_apk_path(path3)) << path3 << " should be allowed as a valid path";
+
     const char *badint1 = TEST_APP_DIR "../example.apk";
     EXPECT_EQ(-1, validate_apk_path(badint1))
             << badint1 << " should be rejected as a invalid path";

diff --git a/cmds/installd/utils.cpp b/cmds/installd/utils.cpp
index ffc082d..b05c655 100644
--- a/cmds/installd/utils.cpp
+++ b/cmds/installd/utils.cpp

@@ -1040,25 +1040,30 @@
         LOG(ERROR) << "Invalid directory " << dir;
         return -1;
     }
-    if (path.find("..") != std::string::npos) {
-        LOG(ERROR) << "Invalid path " << path;
-        return -1;
-    }
 
     if (path.compare(0, dir.size(), dir) != 0) {
         // Common case, path isn't under directory
         return -1;
     }
 
-    // Count number of subdirectories
-    auto pos = path.find('/', dir.size());
+    // Count number of subdirectories and invalidate ".." subdirectories
+    auto last = dir.size();
+    auto pos = path.find('/', last);
     int count = 0;
     while (pos != std::string::npos) {
-        auto next = path.find('/', pos + 1);
-        if (next > pos + 1) {
+        if (pos > last + 1) {
             count++;
         }
-        pos = next;
+        if (path.substr(last, pos - last) == "..") {
+            LOG(ERROR) << "Invalid path " << path;
+            return -1;
+        }
+        last = pos + 1;
+        pos = path.find('/', last);
+    }
+    if (path.substr(last, path.size() - last) == "..") {
+        LOG(ERROR) << "Invalid path " << path;
+        return -1;
     }
 
     if (count > maxSubdirs) {

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diff --git a/cmds/servicemanager/corpus/seed-2024-08-29-99 b/cmds/servicemanager/corpus/seed-2024-08-29-99
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diff --git a/include/audiomanager/IAudioManager.h b/include/audiomanager/IAudioManager.h
index 769670e..0b7e16b 100644
--- a/include/audiomanager/IAudioManager.h
+++ b/include/audiomanager/IAudioManager.h

@@ -27,7 +27,7 @@
 namespace android {
 
 // ----------------------------------------------------------------------------
-
+// TODO(b/309532236) replace this class with AIDL generated parcelable
 class IAudioManager : public IInterface
 {
 public:
@@ -43,6 +43,7 @@
         RELEASE_RECORDER                      = IBinder::FIRST_CALL_TRANSACTION + 6,
         PLAYER_SESSION_ID                     = IBinder::FIRST_CALL_TRANSACTION + 7,
         PORT_EVENT                            = IBinder::FIRST_CALL_TRANSACTION + 8,
+        PERMISSION_UPDATE_BARRIER             = IBinder::FIRST_CALL_TRANSACTION + 9,
     };
 
     DECLARE_META_INTERFACE(AudioManager)
@@ -63,6 +64,7 @@
     /*oneway*/ virtual status_t playerSessionId(audio_unique_id_t piid, audio_session_t sessionId) = 0;
     /*oneway*/ virtual status_t portEvent(audio_port_handle_t portId, player_state_t event,
                 const std::unique_ptr<os::PersistableBundle>& extras) = 0;
+    virtual status_t permissionUpdateBarrier() = 0;
 };
 
 // ----------------------------------------------------------------------------

diff --git a/include/ftl/small_vector.h b/include/ftl/small_vector.h
index 43e9fac..3d5d52e 100644
--- a/include/ftl/small_vector.h
+++ b/include/ftl/small_vector.h

@@ -234,7 +234,7 @@
   }
 
   // Extracts the elements as std::vector.
-  std::vector<T> promote() && {
+  std::vector<std::remove_const_t<T>> promote() && {
     if (dynamic()) {
       return std::get<Dynamic>(std::move(vector_)).promote();
     } else {
@@ -290,11 +290,11 @@
 class SmallVector<T, 0> final : details::ArrayTraits<T>,
                                 details::ArrayComparators<SmallVector>,
                                 details::ArrayIterators<SmallVector<T, 0>, T>,
-                                std::vector<T> {
+                                std::vector<std::remove_const_t<T>> {
   using details::ArrayTraits<T>::replace_at;
 
   using Iter = details::ArrayIterators<SmallVector, T>;
-  using Impl = std::vector<T>;
+  using Impl = std::vector<std::remove_const_t<T>>;
 
   friend Iter;
 
@@ -394,12 +394,12 @@
     pop_back();
   }
 
-  std::vector<T> promote() && { return std::move(*this); }
+  std::vector<std::remove_const_t<T>> promote() && { return std::move(*this); }
 
  private:
   template <typename U, std::size_t M>
   static Impl convert(SmallVector<U, M>&& other) {
-    if constexpr (std::is_constructible_v<Impl, std::vector<U>&&>) {
+    if constexpr (std::is_constructible_v<Impl, std::vector<std::remove_const_t<U>>&&>) {
       return std::move(other).promote();
     } else {
       SmallVector vector(other.size());

diff --git a/include/input/Input.h b/include/input/Input.h
index 1a3cb6a..a8684bd 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h

@@ -251,6 +251,8 @@
     TOUCH_MODE = AINPUT_EVENT_TYPE_TOUCH_MODE,
     ftl_first = KEY,
     ftl_last = TOUCH_MODE,
+    // Used by LatencyTracker fuzzer
+    kMaxValue = ftl_last
 };
 
 std::string inputEventSourceToString(int32_t source);

diff --git a/include/input/InputEventBuilders.h b/include/input/InputEventBuilders.h
index 55e0583..5bd5070 100644
--- a/include/input/InputEventBuilders.h
+++ b/include/input/InputEventBuilders.h

@@ -19,6 +19,8 @@
 #include <android/input.h>
 #include <attestation/HmacKeyManager.h>
 #include <input/Input.h>
+#include <input/InputTransport.h>
+#include <ui/LogicalDisplayId.h>
 #include <utils/Timers.h> // for nsecs_t, systemTime
 
 #include <vector>
@@ -44,6 +46,11 @@
 
     PointerBuilder& y(float y) { return axis(AMOTION_EVENT_AXIS_Y, y); }
 
+    PointerBuilder& isResampled(bool isResampled) {
+        mCoords.isResampled = isResampled;
+        return *this;
+    }
+
     PointerBuilder& axis(int32_t axis, float value) {
         mCoords.setAxisValue(axis, value);
         return *this;
@@ -58,6 +65,87 @@
     PointerCoords mCoords;
 };
 
+class InputMessageBuilder {
+public:
+    InputMessageBuilder(InputMessage::Type type, uint32_t seq) : mType{type}, mSeq{seq} {}
+
+    InputMessageBuilder& eventId(int32_t eventId) {
+        mEventId = eventId;
+        return *this;
+    }
+
+    InputMessageBuilder& eventTime(nsecs_t eventTime) {
+        mEventTime = eventTime;
+        return *this;
+    }
+
+    InputMessageBuilder& deviceId(DeviceId deviceId) {
+        mDeviceId = deviceId;
+        return *this;
+    }
+
+    InputMessageBuilder& source(int32_t source) {
+        mSource = source;
+        return *this;
+    }
+
+    InputMessageBuilder& displayId(ui::LogicalDisplayId displayId) {
+        mDisplayId = displayId;
+        return *this;
+    }
+
+    InputMessageBuilder& action(int32_t action) {
+        mAction = action;
+        return *this;
+    }
+
+    InputMessageBuilder& downTime(nsecs_t downTime) {
+        mDownTime = downTime;
+        return *this;
+    }
+
+    InputMessageBuilder& pointer(PointerBuilder pointerBuilder) {
+        mPointers.push_back(pointerBuilder);
+        return *this;
+    }
+
+    InputMessage build() const {
+        InputMessage message{};
+        // Header
+        message.header.type = mType;
+        message.header.seq = mSeq;
+        // Body
+        message.body.motion.eventId = mEventId;
+        message.body.motion.pointerCount = mPointers.size();
+        message.body.motion.eventTime = mEventTime;
+        message.body.motion.deviceId = mDeviceId;
+        message.body.motion.source = mSource;
+        message.body.motion.displayId = mDisplayId.val();
+        message.body.motion.action = mAction;
+        message.body.motion.downTime = mDownTime;
+
+        for (size_t i = 0; i < mPointers.size(); ++i) {
+            message.body.motion.pointers[i].properties = mPointers[i].buildProperties();
+            message.body.motion.pointers[i].coords = mPointers[i].buildCoords();
+        }
+        return message;
+    }
+
+private:
+    const InputMessage::Type mType;
+    const uint32_t mSeq;
+
+    int32_t mEventId{InputEvent::nextId()};
+    nsecs_t mEventTime{systemTime(SYSTEM_TIME_MONOTONIC)};
+    DeviceId mDeviceId{DEFAULT_DEVICE_ID};
+    int32_t mSource{AINPUT_SOURCE_TOUCHSCREEN};
+    ui::LogicalDisplayId mDisplayId{ui::LogicalDisplayId::DEFAULT};
+    int32_t mAction{AMOTION_EVENT_ACTION_MOVE};
+    nsecs_t mDownTime{mEventTime};
+
+    std::vector<PointerBuilder> mPointers;
+};
+
 class MotionEventBuilder {
 public:
     MotionEventBuilder(int32_t action, int32_t source) {

diff --git a/include/input/Resampler.h b/include/input/Resampler.h
index ff9c4b0..2892137 100644
--- a/include/input/Resampler.h
+++ b/include/input/Resampler.h

@@ -18,6 +18,7 @@
 
 #include <chrono>
 #include <optional>
+#include <vector>
 
 #include <input/Input.h>
 #include <input/InputTransport.h>
@@ -44,7 +45,7 @@
      * 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,
+    virtual void resampleMotionEvent(std::chrono::nanoseconds resampleTime,
                                      MotionEvent& motionEvent,
                                      const InputMessage* futureSample) = 0;
 };
@@ -60,7 +61,7 @@
      * data, LegacyResampler will extrapolate. Otherwise, no resampling takes place and
      * `motionEvent` is unmodified.
      */
-    void resampleMotionEvent(const std::chrono::nanoseconds resampleTime, MotionEvent& motionEvent,
+    void resampleMotionEvent(std::chrono::nanoseconds resampleTime, MotionEvent& motionEvent,
                              const InputMessage* futureSample) override;
 
 private:
@@ -71,11 +72,15 @@
 
     struct Sample {
         std::chrono::nanoseconds eventTime;
-        Pointer pointer;
+        std::vector<Pointer> pointers;
 
-        Sample(const std::chrono::nanoseconds eventTime, const PointerProperties& properties,
-               const PointerCoords& coords)
-              : eventTime{eventTime}, pointer{properties, coords} {}
+        std::vector<PointerCoords> asPointerCoords() const {
+            std::vector<PointerCoords> pointersCoords;
+            for (const Pointer& pointer : pointers) {
+                pointersCoords.push_back(pointer.coords);
+            }
+            return pointersCoords;
+        }
     };
 
     /**
@@ -92,24 +97,50 @@
     RingBuffer<Sample> mLatestSamples{/*capacity=*/2};
 
     /**
-     * Adds up to mLatestSamples.capacity() of motionEvent's latest samples to mLatestSamples. (If
+     * 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.)
+     * 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;
+    static Sample messageToSample(const InputMessage& message);
 
     /**
-     * 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.
+     * Checks if auxiliary sample has the same pointer properties of target sample. That is,
+     * auxiliary pointer IDs must appear in the same order as target pointer IDs, their toolType
+     * must match and be resampleable.
      */
-    void extrapolate(const std::chrono::nanoseconds resampleTime, MotionEvent& motionEvent) const;
+    static bool pointerPropertiesResampleable(const Sample& target, const Sample& auxiliary);
+
+    /**
+     * Checks if there are necessary conditions to interpolate. For example, interpolation cannot
+     * take place if samples are too far apart in time. mLatestSamples must have at least one sample
+     * when canInterpolate is invoked.
+     */
+    bool canInterpolate(const InputMessage& futureSample) const;
+
+    /**
+     * Returns a sample interpolated between the latest sample of mLatestSamples and futureSample,
+     * if the conditions from canInterpolate are satisfied. Otherwise, returns nullopt.
+     * mLatestSamples must have at least one sample when attemptInterpolation is called.
+     */
+    std::optional<Sample> attemptInterpolation(std::chrono::nanoseconds resampleTime,
+                                               const InputMessage& futureSample) const;
+
+    /**
+     * Checks if there are necessary conditions to extrapolate. That is, there are at least two
+     * samples in mLatestSamples, and delta is bounded within a time interval.
+     */
+    bool canExtrapolate() const;
+
+    /**
+     * Returns a sample extrapolated from the two samples of mLatestSamples, if the conditions from
+     * canExtrapolate are satisfied. The returned sample either has eventTime equal to resampleTime,
+     * or an earlier time if resampleTime is too far in the future. If canExtrapolate returns false,
+     * this function returns nullopt.
+     */
+    std::optional<Sample> attemptExtrapolation(std::chrono::nanoseconds resampleTime) const;
+
+    inline static void addSampleToMotionEvent(const Sample& sample, MotionEvent& motionEvent);
 };
-} // namespace android
\ No newline at end of file
+} // namespace android

diff --git a/libs/adbd_auth/adbd_auth.cpp b/libs/adbd_auth/adbd_auth.cpp
index 78896ed..d31cb3d 100644
--- a/libs/adbd_auth/adbd_auth.cpp
+++ b/libs/adbd_auth/adbd_auth.cpp

@@ -390,13 +390,16 @@
         }
     }
 
-    static constexpr const char* key_paths[] = {"/adb_keys", "/data/misc/adb/adb_keys"};
+    static constexpr std::pair<const char*, bool> key_paths[] = {
+        {"/adb_keys",               true  /* follow symlinks */       },
+        {"/data/misc/adb/adb_keys", false /* don't follow symlinks */ },
+    };
     void IteratePublicKeys(bool (*callback)(void*, const char*, size_t), void* opaque) {
-        for (const auto& path : key_paths) {
+        for (const auto& [path, follow_symlinks] : key_paths) {
             if (access(path, R_OK) == 0) {
                 LOG(INFO) << "adbd_auth: loading keys from " << path;
                 std::string content;
-                if (!android::base::ReadFileToString(path, &content)) {
+                if (!android::base::ReadFileToString(path, &content, follow_symlinks)) {
                     PLOG(ERROR) << "adbd_auth: couldn't read " << path;
                     continue;
                 }

diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index de331b7..379b609 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp

@@ -87,6 +87,11 @@
 
 cc_cmake_snapshot {
     name: "binder_sdk",
+    dist: {
+        targets: ["binder_sdk"],
+        dest: "binder_sdk.zip",
+    },
+
     modules_host: [
         "libbinder_sdk",
         "libbinder_sdk_single_threaded",

diff --git a/libs/binder/BackendUnifiedServiceManager.h b/libs/binder/BackendUnifiedServiceManager.h
index f5d7e66..8f3839f 100644
--- a/libs/binder/BackendUnifiedServiceManager.h
+++ b/libs/binder/BackendUnifiedServiceManager.h

@@ -57,8 +57,6 @@
         return mTheRealServiceManager->getInterfaceDescriptor();
     }
 
-    IBinder* onAsBinder() override { return IInterface::asBinder(mTheRealServiceManager).get(); }
-
 private:
     sp<os::IServiceManager> mTheRealServiceManager;
     void toBinderService(const os::Service& in, os::Service* _out);

diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 333f956..c55dd9d 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp

@@ -79,10 +79,9 @@
 IServiceManager::~IServiceManager() {}
 
 // From the old libbinder IServiceManager interface to IServiceManager.
-class ServiceManagerShim : public IServiceManager
-{
+class CppBackendShim : public IServiceManager {
 public:
-    explicit ServiceManagerShim (const sp<AidlServiceManager>& impl);
+    explicit CppBackendShim(const sp<BackendUnifiedServiceManager>& impl);
 
     sp<IBinder> getService(const String16& name) const override;
     sp<IBinder> checkService(const String16& name) const override;
@@ -136,11 +135,11 @@
                                           sp<RegistrationWaiter>* waiter);
 
     // Directly get the service in a way that, for lazy services, requests the service to be started
-    // if it is not currently started. This way, calls directly to ServiceManagerShim::getService
+    // if it is not currently started. This way, calls directly to CppBackendShim::getService
     // will still have the 5s delay that is expected by a large amount of Android code.
     //
-    // When implementing ServiceManagerShim, use realGetService instead of
-    // mUnifiedServiceManager->getService so that it can be overridden in ServiceManagerHostShim.
+    // When implementing CppBackendShim, use realGetService instead of
+    // mUnifiedServiceManager->getService so that it can be overridden in CppServiceManagerHostShim.
     virtual Status realGetService(const std::string& name, sp<IBinder>* _aidl_return) {
         Service service;
         Status status = mUnifiedServiceManager->getService2(name, &service);
@@ -155,7 +154,7 @@
 sp<IServiceManager> defaultServiceManager()
 {
     std::call_once(gSmOnce, []() {
-        gDefaultServiceManager = sp<ServiceManagerShim>::make(getBackendUnifiedServiceManager());
+        gDefaultServiceManager = sp<CppBackendShim>::make(getBackendUnifiedServiceManager());
     });
 
     return gDefaultServiceManager;
@@ -279,16 +278,14 @@
 
 // ----------------------------------------------------------------------
 
-ServiceManagerShim::ServiceManagerShim(const sp<AidlServiceManager>& impl) {
-    mUnifiedServiceManager = sp<BackendUnifiedServiceManager>::make(impl);
-}
+CppBackendShim::CppBackendShim(const sp<BackendUnifiedServiceManager>& impl)
+      : mUnifiedServiceManager(impl) {}
 
 // This implementation could be simplified and made more efficient by delegating
 // to waitForService. However, this changes the threading structure in some
 // cases and could potentially break prebuilts. Once we have higher logistical
 // complexity, this could be attempted.
-sp<IBinder> ServiceManagerShim::getService(const String16& name) const
-{
+sp<IBinder> CppBackendShim::getService(const String16& name) const {
     static bool gSystemBootCompleted = false;
 
     sp<IBinder> svc = checkService(name);
@@ -332,8 +329,7 @@
     return nullptr;
 }
 
-sp<IBinder> ServiceManagerShim::checkService(const String16& name) const
-{
+sp<IBinder> CppBackendShim::checkService(const String16& name) const {
     Service ret;
     if (!mUnifiedServiceManager->checkService(String8(name).c_str(), &ret).isOk()) {
         return nullptr;
@@ -341,16 +337,14 @@
     return ret.get<Service::Tag::binder>();
 }
 
-status_t ServiceManagerShim::addService(const String16& name, const sp<IBinder>& service,
-                                        bool allowIsolated, int dumpsysPriority)
-{
+status_t CppBackendShim::addService(const String16& name, const sp<IBinder>& service,
+                                    bool allowIsolated, int dumpsysPriority) {
     Status status = mUnifiedServiceManager->addService(String8(name).c_str(), service,
                                                        allowIsolated, dumpsysPriority);
     return status.exceptionCode();
 }
 
-Vector<String16> ServiceManagerShim::listServices(int dumpsysPriority)
-{
+Vector<String16> CppBackendShim::listServices(int dumpsysPriority) {
     std::vector<std::string> ret;
     if (!mUnifiedServiceManager->listServices(dumpsysPriority, &ret).isOk()) {
         return {};
@@ -364,8 +358,7 @@
     return res;
 }
 
-sp<IBinder> ServiceManagerShim::waitForService(const String16& name16)
-{
+sp<IBinder> CppBackendShim::waitForService(const String16& name16) {
     class Waiter : public android::os::BnServiceCallback {
         Status onRegistration(const std::string& /*name*/,
                               const sp<IBinder>& binder) override {
@@ -454,7 +447,7 @@
     }
 }
 
-bool ServiceManagerShim::isDeclared(const String16& name) {
+bool CppBackendShim::isDeclared(const String16& name) {
     bool declared;
     if (Status status = mUnifiedServiceManager->isDeclared(String8(name).c_str(), &declared);
         !status.isOk()) {
@@ -465,7 +458,7 @@
     return declared;
 }
 
-Vector<String16> ServiceManagerShim::getDeclaredInstances(const String16& interface) {
+Vector<String16> CppBackendShim::getDeclaredInstances(const String16& interface) {
     std::vector<std::string> out;
     if (Status status =
                 mUnifiedServiceManager->getDeclaredInstances(String8(interface).c_str(), &out);
@@ -483,7 +476,7 @@
     return res;
 }
 
-std::optional<String16> ServiceManagerShim::updatableViaApex(const String16& name) {
+std::optional<String16> CppBackendShim::updatableViaApex(const String16& name) {
     std::optional<std::string> declared;
     if (Status status = mUnifiedServiceManager->updatableViaApex(String8(name).c_str(), &declared);
         !status.isOk()) {
@@ -494,7 +487,7 @@
     return declared ? std::optional<String16>(String16(declared.value().c_str())) : std::nullopt;
 }
 
-Vector<String16> ServiceManagerShim::getUpdatableNames(const String16& apexName) {
+Vector<String16> CppBackendShim::getUpdatableNames(const String16& apexName) {
     std::vector<std::string> out;
     if (Status status = mUnifiedServiceManager->getUpdatableNames(String8(apexName).c_str(), &out);
         !status.isOk()) {
@@ -511,7 +504,7 @@
     return res;
 }
 
-std::optional<IServiceManager::ConnectionInfo> ServiceManagerShim::getConnectionInfo(
+std::optional<IServiceManager::ConnectionInfo> CppBackendShim::getConnectionInfo(
         const String16& name) {
     std::optional<os::ConnectionInfo> connectionInfo;
     if (Status status =
@@ -526,8 +519,8 @@
             : std::nullopt;
 }
 
-status_t ServiceManagerShim::registerForNotifications(const String16& name,
-                                                      const sp<AidlRegistrationCallback>& cb) {
+status_t CppBackendShim::registerForNotifications(const String16& name,
+                                                  const sp<AidlRegistrationCallback>& cb) {
     if (cb == nullptr) {
         ALOGE("%s: null cb passed", __FUNCTION__);
         return BAD_VALUE;
@@ -546,9 +539,9 @@
     return OK;
 }
 
-void ServiceManagerShim::removeRegistrationCallbackLocked(const sp<AidlRegistrationCallback>& cb,
-                                                          ServiceCallbackMap::iterator* it,
-                                                          sp<RegistrationWaiter>* waiter) {
+void CppBackendShim::removeRegistrationCallbackLocked(const sp<AidlRegistrationCallback>& cb,
+                                                      ServiceCallbackMap::iterator* it,
+                                                      sp<RegistrationWaiter>* waiter) {
     std::vector<LocalRegistrationAndWaiter>& localRegistrationAndWaiters = (*it)->second;
     for (auto lit = localRegistrationAndWaiters.begin();
          lit != localRegistrationAndWaiters.end();) {
@@ -567,8 +560,8 @@
     }
 }
 
-status_t ServiceManagerShim::unregisterForNotifications(const String16& name,
-                                                        const sp<AidlRegistrationCallback>& cb) {
+status_t CppBackendShim::unregisterForNotifications(const String16& name,
+                                                    const sp<AidlRegistrationCallback>& cb) {
     if (cb == nullptr) {
         ALOGE("%s: null cb passed", __FUNCTION__);
         return BAD_VALUE;
@@ -597,7 +590,7 @@
     return OK;
 }
 
-std::vector<IServiceManager::ServiceDebugInfo> ServiceManagerShim::getServiceDebugInfo() {
+std::vector<IServiceManager::ServiceDebugInfo> CppBackendShim::getServiceDebugInfo() {
     std::vector<os::ServiceDebugInfo> serviceDebugInfos;
     std::vector<IServiceManager::ServiceDebugInfo> ret;
     if (Status status = mUnifiedServiceManager->getServiceDebugInfo(&serviceDebugInfos);
@@ -615,21 +608,21 @@
 }
 
 #ifndef __ANDROID__
-// ServiceManagerShim for host. Implements the old libbinder android::IServiceManager API.
+// CppBackendShim for host. Implements the old libbinder android::IServiceManager API.
 // The internal implementation of the AIDL interface android::os::IServiceManager calls into
 // on-device service manager.
-class ServiceManagerHostShim : public ServiceManagerShim {
+class CppServiceManagerHostShim : public CppBackendShim {
 public:
-    ServiceManagerHostShim(const sp<AidlServiceManager>& impl,
-                           const RpcDelegateServiceManagerOptions& options)
-          : ServiceManagerShim(impl), mOptions(options) {}
-    // ServiceManagerShim::getService is based on checkService, so no need to override it.
+    CppServiceManagerHostShim(const sp<AidlServiceManager>& impl,
+                              const RpcDelegateServiceManagerOptions& options)
+          : CppBackendShim(sp<BackendUnifiedServiceManager>::make(impl)), mOptions(options) {}
+    // CppBackendShim::getService is based on checkService, so no need to override it.
     sp<IBinder> checkService(const String16& name) const override {
         return getDeviceService({String8(name).c_str()}, mOptions);
     }
 
 protected:
-    // Override realGetService for ServiceManagerShim::waitForService.
+    // Override realGetService for CppBackendShim::waitForService.
     Status realGetService(const std::string& name, sp<IBinder>* _aidl_return) override {
         *_aidl_return = getDeviceService({"-g", name}, mOptions);
         return Status::ok();
@@ -650,7 +643,7 @@
         ALOGE("getDeviceService(\"manager\") returns non service manager");
         return nullptr;
     }
-    return sp<ServiceManagerHostShim>::make(interface, options);
+    return sp<CppServiceManagerHostShim>::make(interface, options);
 }
 #endif
 

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index e8fe555..4b7af45 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp

@@ -1725,7 +1725,9 @@
                 }
             }
         }
-        ::munmap(ptr, len);
+        if (::munmap(ptr, len) == -1) {
+            ALOGW("munmap() failed: %s", strerror(errno));
+        }
     }
     ::close(fd);
     return status;
@@ -3332,7 +3334,9 @@
 
 void Parcel::Blob::release() {
     if (mFd != -1 && mData) {
-        ::munmap(mData, mSize);
+        if (::munmap(mData, mSize) == -1) {
+            ALOGW("munmap() failed: %s", strerror(errno));
+        }
     }
     clear();
 }

diff --git a/libs/binder/ndk/include_ndk/android/binder_ibinder.h b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
index 2929bce..72d255e 100644
--- a/libs/binder/ndk/include_ndk/android/binder_ibinder.h
+++ b/libs/binder/ndk/include_ndk/android/binder_ibinder.h

@@ -771,7 +771,7 @@
  * This provides a per-process-unique total ordering of binders where a null
  * AIBinder* object is considered to be before all other binder objects.
  * For instance, two binders refer to the same object in a local or remote
- * process when both AIBinder_lt(a, b) and AIBinder(b, a) are false. This API
+ * process when both AIBinder_lt(a, b) and AIBinder_lt(b, a) are false. This API
  * might be used to insert and lookup binders in binary search trees.
  *
  * AIBinder* pointers themselves actually also create a per-process-unique total

diff --git a/libs/binder/ndk/include_platform/android/binder_process.h b/libs/binder/ndk/include_platform/android/binder_process.h
index 68528e1..6aff994 100644
--- a/libs/binder/ndk/include_platform/android/binder_process.h
+++ b/libs/binder/ndk/include_platform/android/binder_process.h

@@ -47,8 +47,11 @@
  * be called once before startThreadPool. The number of threads can never decrease.
  *
  * This count refers to the number of threads that will be created lazily by the kernel, in
- * addition to the threads created by ABinderProcess_startThreadPool or
- * ABinderProcess_joinThreadPool.
+ * addition to the single threads created by ABinderProcess_startThreadPool (+1) or
+ * ABinderProcess_joinThreadPool (+1). Note: ABinderProcess_startThreadPool starts a thread
+ * itself, but it also enables up to the number of threads passed to this function to start.
+ * This function does not start any threads itself; it only configures
+ * ABinderProcess_startThreadPool.
  *
  * Do not use this from a library. Apps setup their own threadpools, and otherwise, the main
  * function should be responsible for configuring the threadpool for the entire application.
@@ -63,8 +66,8 @@
 bool ABinderProcess_isThreadPoolStarted(void);
 /**
  * This adds the current thread to the threadpool. This thread will be in addition to the thread
- * started by ABinderProcess_startThreadPool and the lazy kernel-started threads specified by
- * ABinderProcess_setThreadPoolMaxThreadCount.
+ * configured with ABinderProcess_setThreadPoolMaxThreadCount and started with
+ * ABinderProcess_startThreadPool.
  *
  * Do not use this from a library. Apps setup their own threadpools, and otherwise, the main
  * function should be responsible for configuring the threadpool for the entire application.

diff --git a/libs/binder/rust/rpcbinder/Android.bp b/libs/binder/rust/rpcbinder/Android.bp
index 2e46345..174fe8a 100644
--- a/libs/binder/rust/rpcbinder/Android.bp
+++ b/libs/binder/rust/rpcbinder/Android.bp

@@ -32,6 +32,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.compos",
+        "com.android.microfuchsia",
         "com.android.uwb",
         "com.android.virt",
     ],
@@ -60,6 +61,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.compos",
+        "com.android.microfuchsia",
         "com.android.uwb",
         "com.android.virt",
     ],
@@ -93,6 +95,7 @@
     apex_available: [
         "//apex_available:platform",
         "com.android.compos",
+        "com.android.microfuchsia",
         "com.android.uwb",
         "com.android.virt",
     ],

diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 21c32ac..1e463a4 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp

@@ -46,7 +46,7 @@
         "libbinder",
     ],
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
 }
@@ -137,7 +137,7 @@
         "libgmock",
     ],
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
     require_root: true,
@@ -705,7 +705,7 @@
         "libutils",
     ],
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
     require_root: true,
@@ -762,7 +762,7 @@
     ],
 
     test_suites: [
-        "device-tests",
+        "general-tests",
         "vts",
     ],
     require_root: true,
@@ -888,6 +888,7 @@
             enabled: false,
         },
     },
+    corpus: ["corpus/*"],
     fuzz_config: {
         cc: [
             "smoreland@google.com",

diff --git a/libs/binder/tests/binderRpcUniversalTests.cpp b/libs/binder/tests/binderRpcUniversalTests.cpp
index 2cec243..c6fd487 100644
--- a/libs/binder/tests/binderRpcUniversalTests.cpp
+++ b/libs/binder/tests/binderRpcUniversalTests.cpp

@@ -301,7 +301,8 @@
 
     auto proc = createRpcTestSocketServerProcess({});
 
-    sp<IBinder> someRealBinder = IInterface::asBinder(defaultServiceManager());
+    sp<IBinder> someRealBinder = defaultServiceManager()->getService(String16("activity"));
+    ASSERT_NE(someRealBinder, nullptr);
     sp<IBinder> outBinder;
     EXPECT_EQ(INVALID_OPERATION,
               proc.rootIface->repeatBinder(someRealBinder, &outBinder).transactionError());

diff --git a/libs/binder/trusty/include/binder/RpcServerTrusty.h b/libs/binder/trusty/include/binder/RpcServerTrusty.h
index fe44ea5..583ad01 100644
--- a/libs/binder/trusty/include/binder/RpcServerTrusty.h
+++ b/libs/binder/trusty/include/binder/RpcServerTrusty.h

@@ -42,7 +42,7 @@
     // equivalent.
     struct PortAcl {
         uint32_t flags;
-        std::vector<const uuid> uuids;
+        std::vector<uuid> uuids;
         const void* extraData;
     };
 

diff --git a/libs/bufferstreams/rust/src/lib.rs b/libs/bufferstreams/rust/src/lib.rs
index 17d4d87..9c48b49 100644
--- a/libs/bufferstreams/rust/src/lib.rs
+++ b/libs/bufferstreams/rust/src/lib.rs

@@ -37,23 +37,23 @@
 /// BufferPublishers are required to adhere to the following, based on the
 /// reactive streams specification:
 /// * The total number of on_next´s signalled by a Publisher to a Subscriber
-/// MUST be less than or equal to the total number of elements requested by that
-/// Subscriber´s Subscription at all times.
+///   MUST be less than or equal to the total number of elements requested by that
+///   Subscriber´s Subscription at all times.
 /// * A Publisher MAY signal fewer on_next than requested and terminate the
-/// Subscription by calling on_complete or on_error.
+///   Subscription by calling on_complete or on_error.
 /// * on_subscribe, on_next, on_error and on_complete signaled to a Subscriber
-/// MUST be signaled serially.
+///   MUST be signaled serially.
 /// * If a Publisher fails it MUST signal an on_error.
 /// * If a Publisher terminates successfully (finite stream) it MUST signal an
-/// on_complete.
+///   on_complete.
 /// * If a Publisher signals either on_error or on_complete on a Subscriber,
-/// that Subscriber’s Subscription MUST be considered cancelled.
+///   that Subscriber’s Subscription MUST be considered cancelled.
 /// * Once a terminal state has been signaled (on_error, on_complete) it is
-/// REQUIRED that no further signals occur.
+///   REQUIRED that no further signals occur.
 /// * If a Subscription is cancelled its Subscriber MUST eventually stop being
-///  signaled.
+///   signaled.
 /// * A Publisher MAY support multiple Subscribers and decides whether each
-/// Subscription is unicast or multicast.
+///   Subscription is unicast or multicast.
 pub trait BufferPublisher {
     /// Returns the StreamConfig of buffers that publisher creates.
     fn get_publisher_stream_config(&self) -> StreamConfig;
@@ -69,25 +69,25 @@
 /// BufferSubcribers are required to adhere to the following, based on the
 /// reactive streams specification:
 /// * The total number of on_next´s signalled by a Publisher to a Subscriber
-/// MUST be less than or equal to the total number of elements requested by that
-/// Subscriber´s Subscription at all times.
+///   MUST be less than or equal to the total number of elements requested by that
+///   Subscriber´s Subscription at all times.
 /// * A Publisher MAY signal fewer on_next than requested and terminate the
-/// Subscription by calling on_complete or on_error.
+///   Subscription by calling on_complete or on_error.
 /// * on_subscribe, on_next, on_error and on_complete signaled to a Subscriber
-/// MUST be signaled serially.
+///   MUST be signaled serially.
 /// * If a Publisher fails it MUST signal an on_error.
 /// * If a Publisher terminates successfully (finite stream) it MUST signal an
-/// on_complete.
+///   on_complete.
 /// * If a Publisher signals either on_error or on_complete on a Subscriber,
-/// that Subscriber’s Subscription MUST be considered cancelled.
+///   that Subscriber’s Subscription MUST be considered cancelled.
 /// * Once a terminal state has been signaled (on_error, on_complete) it is
-/// REQUIRED that no further signals occur.
+///   REQUIRED that no further signals occur.
 /// * If a Subscription is cancelled its Subscriber MUST eventually stop being
-/// signaled.
+///   signaled.
 /// * Publisher.subscribe MAY be called as many times as wanted but MUST be
-/// with a different Subscriber each time.
+///   with a different Subscriber each time.
 /// * A Publisher MAY support multiple Subscribers and decides whether each
-/// Subscription is unicast or multicast.
+///   Subscription is unicast or multicast.
 pub trait BufferSubscriber {
     /// The StreamConfig of buffers that this subscriber expects.
     fn get_subscriber_stream_config(&self) -> StreamConfig;
@@ -111,39 +111,39 @@
 /// BufferSubcriptions are required to adhere to the following, based on the
 /// reactive streams specification:
 /// * Subscription.request and Subscription.cancel MUST only be called inside
-/// of its Subscriber context.
+///   of its Subscriber context.
 /// * The Subscription MUST allow the Subscriber to call Subscription.request
-/// synchronously from within on_next or on_subscribe.
+///   synchronously from within on_next or on_subscribe.
 /// * Subscription.request MUST place an upper bound on possible synchronous
-/// recursion between Publisher and Subscriber.
+///   recursion between Publisher and Subscriber.
 /// * Subscription.request SHOULD respect the responsivity of its caller by
-/// returning in a timely manner.
+///   returning in a timely manner.
 /// * Subscription.cancel MUST respect the responsivity of its caller by
-/// returning in a timely manner, MUST be idempotent and MUST be thread-safe.
+///   returning in a timely manner, MUST be idempotent and MUST be thread-safe.
 /// * After the Subscription is cancelled, additional
-/// Subscription.request(n: u64) MUST be NOPs.
+///   Subscription.request(n: u64) MUST be NOPs.
 /// * After the Subscription is cancelled, additional Subscription.cancel()
-/// MUST be NOPs.
+///   MUST be NOPs.
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MUST register the given number of additional elements to be produced to the
-/// respective subscriber.
+///   MUST register the given number of additional elements to be produced to the
+///   respective subscriber.
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MUST signal on_error if the argument is <= 0. The cause message SHOULD
-/// explain that non-positive request signals are illegal.
+///   MUST signal on_error if the argument is <= 0. The cause message SHOULD
+///   explain that non-positive request signals are illegal.
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MAY synchronously call on_next on this (or other) subscriber(s).
+///   MAY synchronously call on_next on this (or other) subscriber(s).
 /// * While the Subscription is not cancelled, Subscription.request(n: u64)
-/// MAY synchronously call on_complete or on_error on this (or other)
-/// subscriber(s).
+///   MAY synchronously call on_complete or on_error on this (or other)
+///   subscriber(s).
 /// * While the Subscription is not cancelled, Subscription.cancel() MUST
-/// request the Publisher to eventually stop signaling its Subscriber. The
-/// operation is NOT REQUIRED to affect the Subscription immediately.
+///   request the Publisher to eventually stop signaling its Subscriber. The
+///   operation is NOT REQUIRED to affect the Subscription immediately.
 /// * While the Subscription is not cancelled, Subscription.cancel() MUST
-/// request the Publisher to eventually drop any references to the corresponding
-/// subscriber.
+///   request the Publisher to eventually drop any references to the corresponding
+///   subscriber.
 /// * While the Subscription is not cancelled, calling Subscription.cancel MAY
-/// cause the Publisher, if stateful, to transition into the shut-down state if
-/// no other Subscription exists at this point.
+///   cause the Publisher, if stateful, to transition into the shut-down state if
+///   no other Subscription exists at this point.
 /// * Calling Subscription.cancel MUST return normally.
 /// * Calling Subscription.request MUST return normally.
 pub trait BufferSubscription: Send + Sync + 'static {

diff --git a/libs/gralloc/types/fuzzer/Android.bp b/libs/gralloc/types/fuzzer/Android.bp
index 8337182..d9cdb59 100644
--- a/libs/gralloc/types/fuzzer/Android.bp
+++ b/libs/gralloc/types/fuzzer/Android.bp

@@ -28,14 +28,10 @@
     ],
     static_libs: [
         "libbase",
-        "libcgrouprc",
-        "libcgrouprc_format",
         "libcutils",
         "libgralloctypes",
         "libhidlbase",
         "liblog",
-        "libprocessgroup",
-        "libjsoncpp",
         "libutils",
     ],
 

diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index 52383ac..d1a5663 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp

@@ -83,6 +83,55 @@
 
 static const char* kLlndkLibrariesTxtPath = "/system/etc/llndk.libraries.txt";
 
+// List of libraries that were previously available via VNDK-SP,
+// and are now available via SPHAL.
+// On modern devices that lack the VNDK APEX, the device no longer
+// contains a helpful list of these libraries on the filesystem as above.
+// See system/sepolicy/vendor/file_contexts
+static const char* kFormerlyVndkspLibrariesList =
+    "android.hardware.common-V2-ndk.so:"
+    "android.hardware.common.fmq-V1-ndk.so:"
+    "android.hardware.graphics.allocator-V2-ndk.so:"
+    "android.hardware.graphics.common-V5-ndk.so:"
+    "android.hardware.graphics.common@1.0.so:"
+    "android.hardware.graphics.common@1.1.so:"
+    "android.hardware.graphics.common@1.2.so:"
+    "android.hardware.graphics.composer3-V1-ndk.so:"
+    "android.hardware.graphics.mapper@2.0.so:"
+    "android.hardware.graphics.mapper@2.1.so:"
+    "android.hardware.graphics.mapper@3.0.so:"
+    "android.hardware.graphics.mapper@4.0.so:"
+    "android.hardware.renderscript@1.0.so:"
+    "android.hidl.memory.token@1.0.so:"
+    "android.hidl.memory@1.0-impl.so:"
+    "android.hidl.memory@1.0.so:"
+    "android.hidl.safe_union@1.0.so:"
+    "libRSCpuRef.so:"
+    "libRSDriver.so:"
+    "libRS_internal.so:"
+    "libbacktrace.so:"
+    "libbase.so:"
+    "libbcinfo.so:"
+    "libblas.so:"
+    "libc++.so:"
+    "libcompiler_rt.so:"
+    "libcutils.so:"
+    "libdmabufheap.so:"
+    "libft2.so:"
+    "libgralloctypes.so:"
+    "libhardware.so:"
+    "libhidlbase.so:"
+    "libhidlmemory.so:"
+    "libion.so:"
+    "libjsoncpp.so:"
+    "liblzma.so:"
+    "libpng.so:"
+    "libprocessgroup.so:"
+    "libunwindstack.so:"
+    "libutils.so:"
+    "libutilscallstack.so:"
+    "libz.so";
+
 static std::string vndkVersionStr() {
 #ifdef __BIONIC__
     return base::GetProperty("ro.vndk.version", "");
@@ -122,8 +171,12 @@
 static const std::string getSystemNativeLibraries(NativeLibrary type) {
     std::string nativeLibrariesSystemConfig = "";
 
-    if (!isVndkEnabled() && type == NativeLibrary::LLNDK) {
-        nativeLibrariesSystemConfig = kLlndkLibrariesTxtPath;
+    if (!isVndkEnabled()) {
+        if (type == NativeLibrary::VNDKSP) {
+            return kFormerlyVndkspLibrariesList;
+        } else {
+            nativeLibrariesSystemConfig = kLlndkLibrariesTxtPath;
+        }
     } else {
         nativeLibrariesSystemConfig = kNativeLibrariesSystemConfigPath[type];
         insertVndkVersionStr(&nativeLibrariesSystemConfig);
@@ -263,7 +316,7 @@
         ALOGI("Driver path is setup via UPDATABLE_GFX_DRIVER: %s", mDriverPath.c_str());
     }
 
-    auto vndkNamespace = android_get_exported_namespace("vndk");
+    auto vndkNamespace = android_get_exported_namespace(isVndkEnabled() ? "vndk" : "sphal");
     if (!vndkNamespace) {
         mDriverNamespace = nullptr;
         return mDriverNamespace;
@@ -348,18 +401,10 @@
     switch (driver) {
         case GpuStatsInfo::Driver::GL:
         case GpuStatsInfo::Driver::GL_UPDATED:
-        case GpuStatsInfo::Driver::ANGLE: {
-            if (mGpuStats.glDriverToLoad == GpuStatsInfo::Driver::NONE ||
-                mGpuStats.glDriverToLoad == GpuStatsInfo::Driver::GL) {
-                mGpuStats.glDriverToLoad = driver;
-                break;
-            }
-
-            if (mGpuStats.glDriverFallback == GpuStatsInfo::Driver::NONE) {
-                mGpuStats.glDriverFallback = driver;
-            }
+        case GpuStatsInfo::Driver::ANGLE:
+            mGpuStats.glDriverToLoad = driver;
             break;
-        }
+
         case GpuStatsInfo::Driver::VULKAN:
         case GpuStatsInfo::Driver::VULKAN_UPDATED: {
             if (mGpuStats.vkDriverToLoad == GpuStatsInfo::Driver::NONE ||
@@ -508,8 +553,7 @@
     bool isIntendedDriverLoaded = false;
     if (api == GpuStatsInfo::Api::API_GL) {
         driver = mGpuStats.glDriverToLoad;
-        isIntendedDriverLoaded =
-                isDriverLoaded && (mGpuStats.glDriverFallback == GpuStatsInfo::Driver::NONE);
+        isIntendedDriverLoaded = isDriverLoaded;
     } else {
         driver = mGpuStats.vkDriverToLoad;
         isIntendedDriverLoaded =
@@ -631,7 +675,7 @@
         return mAngleNamespace;
     }
 
-    auto vndkNamespace = android_get_exported_namespace("vndk");
+    auto vndkNamespace = android_get_exported_namespace(isVndkEnabled() ? "vndk" : "sphal");
     if (!vndkNamespace) {
         mAngleNamespace = nullptr;
         return mAngleNamespace;

diff --git a/libs/graphicsenv/OWNERS b/libs/graphicsenv/OWNERS
index 1db8cbe..4aa8fff 100644
--- a/libs/graphicsenv/OWNERS
+++ b/libs/graphicsenv/OWNERS

@@ -1,4 +1,11 @@
 chrisforbes@google.com
-cnorthrop@google.com
 ianelliott@google.com
-lpy@google.com
+
+abdolrashidi@google.com
+cclao@google.com
+cnorthrop@google.com
+hibrian@google.com
+mathias@google.com
+romanl@google.com
+solti@google.com
+yuxinhu@google.com

diff --git a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
index 7f45581..72f29c6 100644
--- a/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h
+++ b/libs/graphicsenv/include/graphicsenv/GpuStatsInfo.h

@@ -141,7 +141,6 @@
     std::string appPackageName = "";
     int32_t vulkanVersion = 0;
     Driver glDriverToLoad = Driver::NONE;
-    Driver glDriverFallback = Driver::NONE;
     Driver vkDriverToLoad = Driver::NONE;
     Driver vkDriverFallback = Driver::NONE;
     bool glDriverToSend = false;

diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index cda4985..3c1971f 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp

@@ -22,11 +22,14 @@
 
 #include <com_android_graphics_libgui_flags.h>
 #include <cutils/atomic.h>
+#include <ftl/fake_guard.h>
 #include <gui/BLASTBufferQueue.h>
 #include <gui/BufferItemConsumer.h>
 #include <gui/BufferQueueConsumer.h>
 #include <gui/BufferQueueCore.h>
 #include <gui/BufferQueueProducer.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
 
 #include <gui/FrameRateUtils.h>
 #include <gui/GLConsumer.h>
@@ -74,6 +77,12 @@
     std::unique_lock _lock{mutex};        \
     base::ScopedLockAssertion assumeLocked(mutex);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+static ReleaseBufferCallback EMPTY_RELEASE_CALLBACK =
+        [](const ReleaseCallbackId&, const sp<Fence>& /*releaseFence*/,
+           std::optional<uint32_t> /*currentMaxAcquiredBufferCount*/) {};
+#endif
+
 void BLASTBufferItemConsumer::onDisconnect() {
     Mutex::Autolock lock(mMutex);
     mPreviouslyConnected = mCurrentlyConnected;
@@ -215,6 +224,12 @@
             },
             this);
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint> bufferReleaseConsumer;
+    gui::BufferReleaseChannel::open(mName, bufferReleaseConsumer, mBufferReleaseProducer);
+    mBufferReleaseReader = std::make_shared<BufferReleaseReader>(std::move(bufferReleaseConsumer));
+#endif
+
     BQA_LOGV("BLASTBufferQueue created");
 }
 
@@ -244,6 +259,9 @@
 void BLASTBufferQueue::onFirstRef() {
     // safe default, most producers are expected to override this
     mProducer->setMaxDequeuedBufferCount(2);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    mBufferReleaseThread.start(sp<BLASTBufferQueue>::fromExisting(this));
+#endif
 }
 
 void BLASTBufferQueue::update(const sp<SurfaceControl>& surface, uint32_t width, uint32_t height,
@@ -269,6 +287,9 @@
     if (surfaceControlChanged) {
         t.setFlags(mSurfaceControl, layer_state_t::eEnableBackpressure,
                    layer_state_t::eEnableBackpressure);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+        t.setBufferReleaseChannel(mSurfaceControl, mBufferReleaseProducer);
+#endif
         applyTransaction = true;
     }
     mTransformHint = mSurfaceControl->getTransformHint();
@@ -306,14 +327,12 @@
     return std::nullopt;
 }
 
-static void transactionCommittedCallbackThunk(void* context, nsecs_t latchTime,
-                                              const sp<Fence>& presentFence,
-                                              const std::vector<SurfaceControlStats>& stats) {
-    if (context == nullptr) {
-        return;
-    }
-    sp<BLASTBufferQueue> bq = static_cast<BLASTBufferQueue*>(context);
-    bq->transactionCommittedCallback(latchTime, presentFence, stats);
+TransactionCompletedCallbackTakesContext BLASTBufferQueue::makeTransactionCommittedCallbackThunk() {
+    return [bbq = sp<BLASTBufferQueue>::fromExisting(
+                    this)](void* /*context*/, nsecs_t latchTime, const sp<Fence>& presentFence,
+                           const std::vector<SurfaceControlStats>& stats) {
+        bbq->transactionCommittedCallback(latchTime, presentFence, stats);
+    };
 }
 
 void BLASTBufferQueue::transactionCommittedCallback(nsecs_t /*latchTime*/,
@@ -346,18 +365,15 @@
             BQA_LOGE("No matching SurfaceControls found: mSurfaceControlsWithPendingCallback was "
                      "empty.");
         }
-        decStrong((void*)transactionCommittedCallbackThunk);
     }
 }
 
-static void transactionCallbackThunk(void* context, nsecs_t latchTime,
-                                     const sp<Fence>& presentFence,
-                                     const std::vector<SurfaceControlStats>& stats) {
-    if (context == nullptr) {
-        return;
-    }
-    sp<BLASTBufferQueue> bq = static_cast<BLASTBufferQueue*>(context);
-    bq->transactionCallback(latchTime, presentFence, stats);
+TransactionCompletedCallbackTakesContext BLASTBufferQueue::makeTransactionCallbackThunk() {
+    return [bbq = sp<BLASTBufferQueue>::fromExisting(
+                    this)](void* /*context*/, nsecs_t latchTime, const sp<Fence>& presentFence,
+                           const std::vector<SurfaceControlStats>& stats) {
+        bbq->transactionCallback(latchTime, presentFence, stats);
+    };
 }
 
 void BLASTBufferQueue::transactionCallback(nsecs_t /*latchTime*/, const sp<Fence>& /*presentFence*/,
@@ -391,6 +407,7 @@
                                                     stat.latchTime,
                                                     stat.frameEventStats.dequeueReadyTime);
                 }
+#if !COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
                 auto currFrameNumber = stat.frameEventStats.frameNumber;
                 std::vector<ReleaseCallbackId> staleReleases;
                 for (const auto& [key, value]: mSubmitted) {
@@ -406,6 +423,7 @@
                                                 stat.currentMaxAcquiredBufferCount,
                                                 true /* fakeRelease */);
                 }
+#endif
             } else {
                 BQA_LOGE("Failed to find matching SurfaceControl in transactionCallback");
             }
@@ -413,23 +431,6 @@
             BQA_LOGE("No matching SurfaceControls found: mSurfaceControlsWithPendingCallback was "
                      "empty.");
         }
-
-        decStrong((void*)transactionCallbackThunk);
-    }
-}
-
-// Unlike transactionCallbackThunk the release buffer callback does not extend the life of the
-// BBQ. This is because if the BBQ is destroyed, then the buffers will be released by the client.
-// So we pass in a weak pointer to the BBQ and if it still alive, then we release the buffer.
-// Otherwise, this is a no-op.
-static void releaseBufferCallbackThunk(wp<BLASTBufferQueue> context, const ReleaseCallbackId& id,
-                                       const sp<Fence>& releaseFence,
-                                       std::optional<uint32_t> currentMaxAcquiredBufferCount) {
-    sp<BLASTBufferQueue> blastBufferQueue = context.promote();
-    if (blastBufferQueue) {
-        blastBufferQueue->releaseBufferCallback(id, releaseFence, currentMaxAcquiredBufferCount);
-    } else {
-        ALOGV("releaseBufferCallbackThunk %s blastBufferQueue is dead", id.to_string().c_str());
     }
 }
 
@@ -442,6 +443,23 @@
     }
 }
 
+// Unlike transactionCallbackThunk the release buffer callback does not extend the life of the
+// BBQ. This is because if the BBQ is destroyed, then the buffers will be released by the client.
+// So we pass in a weak pointer to the BBQ and if it still alive, then we release the buffer.
+// Otherwise, this is a no-op.
+ReleaseBufferCallback BLASTBufferQueue::makeReleaseBufferCallbackThunk() {
+    return [weakBbq = wp<BLASTBufferQueue>::fromExisting(
+                    this)](const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
+                           std::optional<uint32_t> currentMaxAcquiredBufferCount) {
+        sp<BLASTBufferQueue> bbq = weakBbq.promote();
+        if (!bbq) {
+            ALOGV("releaseBufferCallbackThunk %s blastBufferQueue is dead", id.to_string().c_str());
+            return;
+        }
+        bbq->releaseBufferCallback(id, releaseFence, currentMaxAcquiredBufferCount);
+    };
+}
+
 void BLASTBufferQueue::releaseBufferCallback(
         const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
         std::optional<uint32_t> currentMaxAcquiredBufferCount) {
@@ -509,13 +527,7 @@
                  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);
@@ -610,9 +622,6 @@
         t->notifyProducerDisconnect(mSurfaceControl);
     }
 
-    // Ensure BLASTBufferQueue stays alive until we receive the transaction complete callback.
-    incStrong((void*)transactionCallbackThunk);
-
     // Only update mSize for destination bounds if the incoming buffer matches the requested size.
     // Otherwise, it could cause stretching since the destination bounds will update before the
     // buffer with the new size is acquired.
@@ -625,9 +634,12 @@
                            bufferItem.mGraphicBuffer->getHeight(), bufferItem.mTransform,
                            bufferItem.mScalingMode, crop);
 
-    auto releaseBufferCallback =
-            std::bind(releaseBufferCallbackThunk, wp<BLASTBufferQueue>(this) /* callbackContext */,
-                      std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    ReleaseBufferCallback releaseBufferCallback =
+            applyTransaction ? EMPTY_RELEASE_CALLBACK : makeReleaseBufferCallbackThunk();
+#else
+    auto releaseBufferCallback = makeReleaseBufferCallbackThunk();
+#endif
     sp<Fence> fence = bufferItem.mFence ? new Fence(bufferItem.mFence->dup()) : Fence::NO_FENCE;
 
     nsecs_t dequeueTime = -1;
@@ -645,7 +657,7 @@
     t->setDataspace(mSurfaceControl, static_cast<ui::Dataspace>(bufferItem.mDataSpace));
     t->setHdrMetadata(mSurfaceControl, bufferItem.mHdrMetadata);
     t->setSurfaceDamageRegion(mSurfaceControl, bufferItem.mSurfaceDamage);
-    t->addTransactionCompletedCallback(transactionCallbackThunk, static_cast<void*>(this));
+    t->addTransactionCompletedCallback(makeTransactionCallbackThunk(), nullptr);
 
     mSurfaceControlsWithPendingCallback.push(mSurfaceControl);
 
@@ -777,9 +789,6 @@
         }
 
         // add to shadow queue
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-        mNumDequeued--;
-#endif
         mNumFrameAvailable++;
         if (waitForTransactionCallback && mNumFrameAvailable >= 2) {
             acquireAndReleaseBuffer();
@@ -805,9 +814,9 @@
 
             // Only need a commit callback when syncing to ensure the buffer that's synced has been
             // sent to SF
-            incStrong((void*)transactionCommittedCallbackThunk);
-            mSyncTransaction->addTransactionCommittedCallback(transactionCommittedCallbackThunk,
-                                                              static_cast<void*>(this));
+            mSyncTransaction
+                    ->addTransactionCommittedCallback(makeTransactionCommittedCallbackThunk(),
+                                                      nullptr);
             if (mAcquireSingleBuffer) {
                 prevCallback = mTransactionReadyCallback;
                 prevTransaction = mSyncTransaction;
@@ -834,17 +843,8 @@
 };
 
 void BLASTBufferQueue::onFrameCancelled(const uint64_t 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
+    std::lock_guard _lock{mTimestampMutex};
+    mDequeueTimestamps.erase(bufferId);
 }
 
 bool BLASTBufferQueue::syncNextTransaction(
@@ -1130,9 +1130,9 @@
 // can be non-blocking when the producer is in the client process.
 class BBQBufferQueueProducer : public BufferQueueProducer {
 public:
-    BBQBufferQueueProducer(const sp<BufferQueueCore>& core, wp<BLASTBufferQueue> bbq)
+    BBQBufferQueueProducer(const sp<BufferQueueCore>& core, const wp<BLASTBufferQueue>& bbq)
           : BufferQueueProducer(core, false /* consumerIsSurfaceFlinger*/),
-            mBLASTBufferQueue(std::move(bbq)) {}
+            mBLASTBufferQueue(bbq) {}
 
     status_t connect(const sp<IProducerListener>& listener, int api, bool producerControlledByApp,
                      QueueBufferOutput* output) override {
@@ -1144,107 +1144,6 @@
                                             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;
@@ -1267,13 +1166,6 @@
             bbq->resizeFrameEventHistory(newFrameHistorySize);
         }
 
-#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
-        {
-            std::lock_guard lock{bbq->mMutex};
-            bbq->mMaxDequeuedBuffers = maxDequeuedBufferCount;
-        }
-#endif
-
         return OK;
     }
 
@@ -1360,7 +1252,120 @@
 void BLASTBufferQueue::setTransactionHangCallback(
         std::function<void(const std::string&)> callback) {
     std::lock_guard _lock{mMutex};
-    mTransactionHangCallback = callback;
+    mTransactionHangCallback = std::move(callback);
 }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+
+BLASTBufferQueue::BufferReleaseReader::BufferReleaseReader(
+        std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint> endpoint)
+      : mEndpoint{std::move(endpoint)} {
+    mEpollFd = android::base::unique_fd{epoll_create1(0)};
+    LOG_ALWAYS_FATAL_IF(!mEpollFd.ok(),
+                        "Failed to create buffer release epoll file descriptor. errno=%d "
+                        "message='%s'",
+                        errno, strerror(errno));
+
+    epoll_event registerEndpointFd{};
+    registerEndpointFd.events = EPOLLIN;
+    registerEndpointFd.data.fd = mEndpoint->getFd();
+    status_t status =
+            epoll_ctl(mEpollFd.get(), EPOLL_CTL_ADD, mEndpoint->getFd(), &registerEndpointFd);
+    LOG_ALWAYS_FATAL_IF(status == -1,
+                        "Failed to register buffer release consumer file descriptor with epoll. "
+                        "errno=%d message='%s'",
+                        errno, strerror(errno));
+
+    mEventFd = android::base::unique_fd(eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK));
+    LOG_ALWAYS_FATAL_IF(!mEventFd.ok(),
+                        "Failed to create buffer release event file descriptor. errno=%d "
+                        "message='%s'",
+                        errno, strerror(errno));
+
+    epoll_event registerEventFd{};
+    registerEventFd.events = EPOLLIN;
+    registerEventFd.data.fd = mEventFd.get();
+    status = epoll_ctl(mEpollFd.get(), EPOLL_CTL_ADD, mEventFd.get(), &registerEventFd);
+    LOG_ALWAYS_FATAL_IF(status == -1,
+                        "Failed to register buffer release event file descriptor with epoll. "
+                        "errno=%d message='%s'",
+                        errno, strerror(errno));
+}
+
+BLASTBufferQueue::BufferReleaseReader& BLASTBufferQueue::BufferReleaseReader::operator=(
+        BufferReleaseReader&& other) {
+    if (this != &other) {
+        ftl::FakeGuard guard{mMutex};
+        ftl::FakeGuard otherGuard{other.mMutex};
+        mEndpoint = std::move(other.mEndpoint);
+        mEpollFd = std::move(other.mEpollFd);
+        mEventFd = std::move(other.mEventFd);
+    }
+    return *this;
+}
+
+status_t BLASTBufferQueue::BufferReleaseReader::readBlocking(ReleaseCallbackId& outId,
+                                                             sp<Fence>& outFence,
+                                                             uint32_t& outMaxAcquiredBufferCount) {
+    epoll_event event{};
+    while (true) {
+        int eventCount = epoll_wait(mEpollFd.get(), &event, 1 /* maxevents */, -1 /* timeout */);
+        if (eventCount == 1) {
+            break;
+        }
+        if (eventCount == -1 && errno != EINTR) {
+            ALOGE("epoll_wait error while waiting for buffer release. errno=%d message='%s'", errno,
+                  strerror(errno));
+        }
+    }
+
+    if (event.data.fd == mEventFd.get()) {
+        uint64_t value;
+        if (read(mEventFd.get(), &value, sizeof(uint64_t)) == -1 && errno != EWOULDBLOCK) {
+            ALOGE("error while reading from eventfd. errno=%d message='%s'", errno,
+                  strerror(errno));
+        }
+        return WOULD_BLOCK;
+    }
+
+    std::lock_guard lock{mMutex};
+    return mEndpoint->readReleaseFence(outId, outFence, outMaxAcquiredBufferCount);
+}
+
+void BLASTBufferQueue::BufferReleaseReader::interruptBlockingRead() {
+    uint64_t value = 1;
+    if (write(mEventFd.get(), &value, sizeof(uint64_t)) == -1) {
+        ALOGE("failed to notify dequeue event. errno=%d message='%s'", errno, strerror(errno));
+    }
+}
+
+void BLASTBufferQueue::BufferReleaseThread::start(const sp<BLASTBufferQueue>& bbq) {
+    mRunning = std::make_shared<std::atomic_bool>(true);
+    mReader = bbq->mBufferReleaseReader;
+    std::thread([running = mRunning, reader = mReader, weakBbq = wp<BLASTBufferQueue>(bbq)]() {
+        pthread_setname_np(pthread_self(), "BufferReleaseThread");
+        while (*running) {
+            ReleaseCallbackId id;
+            sp<Fence> fence;
+            uint32_t maxAcquiredBufferCount;
+            if (status_t status = reader->readBlocking(id, fence, maxAcquiredBufferCount);
+                status != OK) {
+                continue;
+            }
+            sp<BLASTBufferQueue> bbq = weakBbq.promote();
+            if (!bbq) {
+                return;
+            }
+            bbq->releaseBufferCallback(id, fence, maxAcquiredBufferCount);
+        }
+    }).detach();
+}
+
+BLASTBufferQueue::BufferReleaseThread::~BufferReleaseThread() {
+    *mRunning = false;
+    mReader->interruptBlockingRead();
+}
+
+#endif
+
 } // namespace android

diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 0714fd9..b109969 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp

@@ -892,88 +892,6 @@
 
 // ----------------------------------------------------------------------------
 
-namespace gui {
-
-status_t CaptureArgs::writeToParcel(Parcel* output) const {
-    SAFE_PARCEL(output->writeInt32, static_cast<int32_t>(pixelFormat));
-    SAFE_PARCEL(output->write, sourceCrop);
-    SAFE_PARCEL(output->writeFloat, frameScaleX);
-    SAFE_PARCEL(output->writeFloat, frameScaleY);
-    SAFE_PARCEL(output->writeBool, captureSecureLayers);
-    SAFE_PARCEL(output->writeInt32, uid);
-    SAFE_PARCEL(output->writeInt32, static_cast<int32_t>(dataspace));
-    SAFE_PARCEL(output->writeBool, allowProtected);
-    SAFE_PARCEL(output->writeBool, grayscale);
-    SAFE_PARCEL(output->writeInt32, excludeHandles.size());
-    for (auto& excludeHandle : excludeHandles) {
-        SAFE_PARCEL(output->writeStrongBinder, excludeHandle);
-    }
-    SAFE_PARCEL(output->writeBool, hintForSeamlessTransition);
-    return NO_ERROR;
-}
-
-status_t CaptureArgs::readFromParcel(const Parcel* input) {
-    int32_t value = 0;
-    SAFE_PARCEL(input->readInt32, &value);
-    pixelFormat = static_cast<ui::PixelFormat>(value);
-    SAFE_PARCEL(input->read, sourceCrop);
-    SAFE_PARCEL(input->readFloat, &frameScaleX);
-    SAFE_PARCEL(input->readFloat, &frameScaleY);
-    SAFE_PARCEL(input->readBool, &captureSecureLayers);
-    SAFE_PARCEL(input->readInt32, &uid);
-    SAFE_PARCEL(input->readInt32, &value);
-    dataspace = static_cast<ui::Dataspace>(value);
-    SAFE_PARCEL(input->readBool, &allowProtected);
-    SAFE_PARCEL(input->readBool, &grayscale);
-    int32_t numExcludeHandles = 0;
-    SAFE_PARCEL_READ_SIZE(input->readInt32, &numExcludeHandles, input->dataSize());
-    excludeHandles.reserve(numExcludeHandles);
-    for (int i = 0; i < numExcludeHandles; i++) {
-        sp<IBinder> binder;
-        SAFE_PARCEL(input->readStrongBinder, &binder);
-        excludeHandles.emplace(binder);
-    }
-    SAFE_PARCEL(input->readBool, &hintForSeamlessTransition);
-    return NO_ERROR;
-}
-
-status_t DisplayCaptureArgs::writeToParcel(Parcel* output) const {
-    SAFE_PARCEL(CaptureArgs::writeToParcel, output);
-
-    SAFE_PARCEL(output->writeStrongBinder, displayToken);
-    SAFE_PARCEL(output->writeUint32, width);
-    SAFE_PARCEL(output->writeUint32, height);
-    return NO_ERROR;
-}
-
-status_t DisplayCaptureArgs::readFromParcel(const Parcel* input) {
-    SAFE_PARCEL(CaptureArgs::readFromParcel, input);
-
-    SAFE_PARCEL(input->readStrongBinder, &displayToken);
-    SAFE_PARCEL(input->readUint32, &width);
-    SAFE_PARCEL(input->readUint32, &height);
-    return NO_ERROR;
-}
-
-status_t LayerCaptureArgs::writeToParcel(Parcel* output) const {
-    SAFE_PARCEL(CaptureArgs::writeToParcel, output);
-
-    SAFE_PARCEL(output->writeStrongBinder, layerHandle);
-    SAFE_PARCEL(output->writeBool, childrenOnly);
-    return NO_ERROR;
-}
-
-status_t LayerCaptureArgs::readFromParcel(const Parcel* input) {
-    SAFE_PARCEL(CaptureArgs::readFromParcel, input);
-
-    SAFE_PARCEL(input->readStrongBinder, &layerHandle);
-
-    SAFE_PARCEL(input->readBool, &childrenOnly);
-    return NO_ERROR;
-}
-
-}; // namespace gui
-
 ReleaseCallbackId BufferData::generateReleaseCallbackId() const {
     uint64_t bufferId;
     if (buffer) {

diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 4a8df9e..66e7ddd 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp

@@ -43,7 +43,7 @@
 #include <ui/GraphicBuffer.h>
 #include <ui/Region.h>
 
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/BufferItem.h>
 
 #include <gui/ISurfaceComposer.h>
@@ -77,9 +77,28 @@
 
 } // namespace
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+Surface::ProducerDeathListenerProxy::ProducerDeathListenerProxy(wp<SurfaceListener> surfaceListener)
+      : mSurfaceListener(surfaceListener) {}
+
+void Surface::ProducerDeathListenerProxy::binderDied(const wp<IBinder>&) {
+    sp<SurfaceListener> surfaceListener = mSurfaceListener.promote();
+    if (!surfaceListener) {
+        return;
+    }
+
+    if (surfaceListener->needsDeathNotify()) {
+        surfaceListener->onRemoteDied();
+    }
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 Surface::Surface(const sp<IGraphicBufferProducer>& bufferProducer, bool controlledByApp,
                  const sp<IBinder>& surfaceControlHandle)
       : mGraphicBufferProducer(bufferProducer),
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+        mSurfaceDeathListener(nullptr),
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
         mCrop(Rect::EMPTY_RECT),
         mBufferAge(0),
         mGenerationNumber(0),
@@ -134,6 +153,12 @@
     if (mConnectedToCpu) {
         Surface::disconnect(NATIVE_WINDOW_API_CPU);
     }
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    if (mSurfaceDeathListener != nullptr) {
+        IInterface::asBinder(mGraphicBufferProducer)->unlinkToDeath(mSurfaceDeathListener);
+        mSurfaceDeathListener = nullptr;
+    }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 }
 
 sp<ISurfaceComposer> Surface::composerService() const {
@@ -716,11 +741,12 @@
     return res;
 }
 
-status_t Surface::queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd) {
+status_t Surface::queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd,
+                              SurfaceQueueBufferOutput* output) {
     if (buffer == nullptr) {
         return BAD_VALUE;
     }
-    return queueBuffer(buffer.get(), fd ? fd->get() : -1);
+    return queueBuffer(buffer.get(), fd ? fd->get() : -1, output);
 }
 
 status_t Surface::detachBuffer(const sp<GraphicBuffer>& buffer) {
@@ -1170,7 +1196,8 @@
 
 #if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
-int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
+int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd,
+                         SurfaceQueueBufferOutput* surfaceOutput) {
     ATRACE_CALL();
     ALOGV("Surface::queueBuffer");
 
@@ -1220,16 +1247,26 @@
         onBufferQueuedLocked(slot, fence, output);
     }
 
+    if (surfaceOutput != nullptr) {
+        *surfaceOutput = {.bufferReplaced = output.bufferReplaced};
+    }
+
     return err;
 }
 
-int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers) {
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers,
+                          std::vector<SurfaceQueueBufferOutput>* queueBufferOutputs)
+#else
+int Surface::queueBuffers(const std::vector<BatchQueuedBuffer>& buffers)
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+{
     ATRACE_CALL();
     ALOGV("Surface::queueBuffers");
 
     size_t numBuffers = buffers.size();
-    std::vector<IGraphicBufferProducer::QueueBufferInput> queueBufferInputs(numBuffers);
-    std::vector<IGraphicBufferProducer::QueueBufferOutput> queueBufferOutputs;
+    std::vector<IGraphicBufferProducer::QueueBufferInput> igbpQueueBufferInputs(numBuffers);
+    std::vector<IGraphicBufferProducer::QueueBufferOutput> igbpQueueBufferOutputs;
     std::vector<int> bufferSlots(numBuffers, -1);
     std::vector<sp<Fence>> bufferFences(numBuffers);
 
@@ -1255,12 +1292,13 @@
             IGraphicBufferProducer::QueueBufferInput input;
             getQueueBufferInputLocked(buffers[batchIdx].buffer, buffers[batchIdx].fenceFd,
                                       buffers[batchIdx].timestamp, &input);
+            input.slot = i;
             bufferFences[batchIdx] = input.fence;
-            queueBufferInputs[batchIdx] = input;
+            igbpQueueBufferInputs[batchIdx] = input;
         }
     }
     nsecs_t now = systemTime();
-    err = mGraphicBufferProducer->queueBuffers(queueBufferInputs, &queueBufferOutputs);
+    err = mGraphicBufferProducer->queueBuffers(igbpQueueBufferInputs, &igbpQueueBufferOutputs);
     {
         Mutex::Autolock lock(mMutex);
         mLastQueueDuration = systemTime() - now;
@@ -1270,10 +1308,21 @@
 
         for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
             onBufferQueuedLocked(bufferSlots[batchIdx], bufferFences[batchIdx],
-                                 queueBufferOutputs[batchIdx]);
+                                 igbpQueueBufferOutputs[batchIdx]);
         }
     }
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    if (queueBufferOutputs != nullptr) {
+        queueBufferOutputs->clear();
+        queueBufferOutputs->resize(numBuffers);
+        for (size_t batchIdx = 0; batchIdx < numBuffers; batchIdx++) {
+            (*queueBufferOutputs)[batchIdx].bufferReplaced =
+                    igbpQueueBufferOutputs[batchIdx].bufferReplaced;
+        }
+    }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     return err;
 }
 
@@ -2033,6 +2082,7 @@
     Mutex::Autolock lock(mMutex);
     IGraphicBufferProducer::QueueBufferOutput output;
     mReportRemovedBuffers = reportBufferRemoval;
+
     if (listener != nullptr) {
         mListenerProxy = new ProducerListenerProxy(this, listener);
     }
@@ -2053,6 +2103,13 @@
         }
 
         mConsumerRunningBehind = (output.numPendingBuffers >= 2);
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+        if (listener && listener->needsDeathNotify()) {
+            mSurfaceDeathListener = sp<ProducerDeathListenerProxy>::make(listener);
+            IInterface::asBinder(mGraphicBufferProducer)->linkToDeath(mSurfaceDeathListener);
+        }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
     }
     if (!err && api == NATIVE_WINDOW_API_CPU) {
         mConnectedToCpu = true;
@@ -2093,6 +2150,14 @@
             mConnectedToCpu = false;
         }
     }
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    if (mSurfaceDeathListener != nullptr) {
+        IInterface::asBinder(mGraphicBufferProducer)->unlinkToDeath(mSurfaceDeathListener);
+        mSurfaceDeathListener = nullptr;
+    }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     return err;
 }
 

diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index b5d9366..df58df4 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp

@@ -43,7 +43,7 @@
 
 #include <system/graphics.h>
 
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/BufferItemConsumer.h>
 #include <gui/CpuConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
@@ -2051,8 +2051,9 @@
 SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::addTransactionCallback(
         TransactionCompletedCallbackTakesContext callback, void* callbackContext,
         CallbackId::Type callbackType) {
-    auto callbackWithContext = std::bind(callback, callbackContext, std::placeholders::_1,
-                                         std::placeholders::_2, std::placeholders::_3);
+    auto callbackWithContext =
+            std::bind(std::move(callback), callbackContext, std::placeholders::_1,
+                      std::placeholders::_2, std::placeholders::_3);
     const auto& surfaceControls = mListenerCallbacks[mTransactionCompletedListener].surfaceControls;
 
     CallbackId callbackId =
@@ -2066,13 +2067,15 @@
 SurfaceComposerClient::Transaction&
 SurfaceComposerClient::Transaction::addTransactionCompletedCallback(
         TransactionCompletedCallbackTakesContext callback, void* callbackContext) {
-    return addTransactionCallback(callback, callbackContext, CallbackId::Type::ON_COMPLETE);
+    return addTransactionCallback(std::move(callback), callbackContext,
+                                  CallbackId::Type::ON_COMPLETE);
 }
 
 SurfaceComposerClient::Transaction&
 SurfaceComposerClient::Transaction::addTransactionCommittedCallback(
         TransactionCompletedCallbackTakesContext callback, void* callbackContext) {
-    return addTransactionCallback(callback, callbackContext, CallbackId::Type::ON_COMMIT);
+    return addTransactionCallback(std::move(callback), callbackContext,
+                                  CallbackId::Type::ON_COMMIT);
 }
 
 SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::notifyProducerDisconnect(

diff --git a/libs/gui/WindowInfosListenerReporter.cpp b/libs/gui/WindowInfosListenerReporter.cpp
index 0929b8e..91c9a85 100644
--- a/libs/gui/WindowInfosListenerReporter.cpp
+++ b/libs/gui/WindowInfosListenerReporter.cpp

@@ -15,7 +15,7 @@
  */
 
 #include <android/gui/ISurfaceComposer.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/WindowInfosListenerReporter.h>
 #include "gui/WindowInfosUpdate.h"
 

diff --git a/libs/gui/aidl/Android.bp b/libs/gui/aidl/Android.bp
index 8ed08c2..fd035f6 100644
--- a/libs/gui/aidl/Android.bp
+++ b/libs/gui/aidl/Android.bp

@@ -28,9 +28,6 @@
         ":libgui_extra_unstructured_aidl_files",
 
         "android/gui/BitTube.aidl",
-        "android/gui/CaptureArgs.aidl",
-        "android/gui/DisplayCaptureArgs.aidl",
-        "android/gui/LayerCaptureArgs.aidl",
         "android/gui/LayerMetadata.aidl",
         "android/gui/ParcelableVsyncEventData.aidl",
         "android/gui/ScreenCaptureResults.aidl",

diff --git a/libs/gui/aidl/android/gui/CaptureArgs.aidl b/libs/gui/aidl/android/gui/CaptureArgs.aidl
index 9f198ca..2bbed2b 100644
--- a/libs/gui/aidl/android/gui/CaptureArgs.aidl
+++ b/libs/gui/aidl/android/gui/CaptureArgs.aidl

@@ -16,4 +16,58 @@
 
 package android.gui;
 
-parcelable CaptureArgs cpp_header "gui/DisplayCaptureArgs.h" rust_type "gui_aidl_types_rs::CaptureArgs";
+import android.gui.ARect;
+
+// Common arguments for capturing content on-screen
+parcelable CaptureArgs {
+    const int UNSET_UID = -1;
+
+    // Desired pixel format of the final screenshotted buffer
+    int /*ui::PixelFormat*/ pixelFormat = 1;
+
+    // Crop in layer space: all content outside of the crop will not be captured.
+    ARect sourceCrop;
+
+    // Scale in the x-direction for the screenshotted result.
+    float frameScaleX = 1.0f;
+
+    // Scale in the y-direction for the screenshotted result.
+    float frameScaleY = 1.0f;
+
+    // True if capturing secure layers is permitted
+    boolean captureSecureLayers = false;
+
+    // UID whose content we want to screenshot
+    int uid = UNSET_UID;
+
+    // Force capture to be in a color space. If the value is ui::Dataspace::UNKNOWN, the captured
+    // result will be in a colorspace appropriate for capturing the display contents
+    // The display may use non-RGB dataspace (ex. displayP3) that could cause pixel data could be
+    // different from SRGB (byte per color), and failed when checking colors in tests.
+    // NOTE: In normal cases, we want the screen to be captured in display's colorspace.
+    int /*ui::Dataspace*/ dataspace = 0;
+
+    // The receiver of the capture can handle protected buffer. A protected buffer has
+    // GRALLOC_USAGE_PROTECTED usage bit and must not be accessed unprotected behaviour.
+    // Any read/write access from unprotected context will result in undefined behaviour.
+    // Protected contents are typically DRM contents. This has no direct implication to the
+    // secure property of the surface, which is specified by the application explicitly to avoid
+    // the contents being accessed/captured by screenshot or unsecure display.
+    boolean allowProtected = false;
+
+    // True if the content should be captured in grayscale
+    boolean grayscale = false;
+
+    // List of layers to exclude capturing from
+    IBinder[] excludeHandles;
+
+    // Hint that the caller will use the screenshot animation as part of a transition animation.
+    // The canonical example would be screen rotation - in such a case any color shift in the
+    // screenshot is a detractor so composition in the display's colorspace is required.
+    // Otherwise, the system may choose a colorspace that is more appropriate for use-cases
+    // such as file encoding or for blending HDR content into an ap's UI, where the display's
+    // exact colorspace is not an appropriate intermediate result.
+    // Note that if the caller is requesting a specific dataspace, this hint does nothing.
+    boolean hintForSeamlessTransition = false;
+}
+

diff --git a/libs/gui/aidl/android/gui/DisplayCaptureArgs.aidl b/libs/gui/aidl/android/gui/DisplayCaptureArgs.aidl
index fc97dbf..e00a2df 100644
--- a/libs/gui/aidl/android/gui/DisplayCaptureArgs.aidl
+++ b/libs/gui/aidl/android/gui/DisplayCaptureArgs.aidl

@@ -16,5 +16,18 @@
 
 package android.gui;
 
-parcelable DisplayCaptureArgs cpp_header "gui/DisplayCaptureArgs.h" rust_type "gui_aidl_types_rs::DisplayCaptureArgs";
+import android.gui.CaptureArgs;
+
+// Arguments for screenshotting an entire display
+parcelable DisplayCaptureArgs {
+    CaptureArgs captureArgs;
+
+    // The display that we want to screenshot
+    IBinder displayToken;
+
+    // The width of the render area when we screenshot
+    int width = 0;
+    // The length of the render area when we screenshot
+    int height = 0;
+}
 

diff --git a/libs/gui/aidl/android/gui/JankData.aidl b/libs/gui/aidl/android/gui/JankData.aidl
index 7ea9d22..ec13681 100644
--- a/libs/gui/aidl/android/gui/JankData.aidl
+++ b/libs/gui/aidl/android/gui/JankData.aidl

@@ -29,7 +29,17 @@
   int jankType;
 
   /**
-   * Expected duration in nanoseconds of this frame.
+   * Time between frames in nanoseconds.
    */
   long frameIntervalNs;
+
+  /**
+   * Time allocated to the application to render this frame.
+   */
+  long scheduledAppFrameTimeNs;
+
+  /**
+   * Time taken by the application to render this frame.
+   */
+  long actualAppFrameTimeNs;
 }

diff --git a/libs/gui/aidl/android/gui/LayerCaptureArgs.aidl b/libs/gui/aidl/android/gui/LayerCaptureArgs.aidl
index 18d293f..004c35a 100644
--- a/libs/gui/aidl/android/gui/LayerCaptureArgs.aidl
+++ b/libs/gui/aidl/android/gui/LayerCaptureArgs.aidl

@@ -16,4 +16,15 @@
 
 package android.gui;
 
-parcelable LayerCaptureArgs cpp_header "gui/LayerCaptureArgs.h" rust_type "gui_aidl_types_rs::LayerCaptureArgs";
+import android.gui.CaptureArgs;
+
+// Arguments for capturing a layer and/or its children
+parcelable LayerCaptureArgs {
+    CaptureArgs captureArgs;
+
+    // The Layer that we may want to capture. We would also capture its children
+    IBinder layerHandle;
+    // True if we don't actually want to capture the layer and want to capture
+    // its children instead.
+    boolean childrenOnly = false;
+}

diff --git a/libs/gui/include/gui/AidlStatusUtil.h b/libs/gui/include/gui/AidlUtil.h
similarity index 84%
rename from libs/gui/include/gui/AidlStatusUtil.h
rename to libs/gui/include/gui/AidlUtil.h
index 55be27b..a3ecd84 100644
--- a/libs/gui/include/gui/AidlStatusUtil.h
+++ b/libs/gui/include/gui/AidlUtil.h

@@ -16,9 +16,11 @@
 
 #pragma once
 
+#include <android/gui/ARect.h>
 #include <binder/Status.h>
+#include <ui/Rect.h>
 
-// Extracted from frameworks/av/media/libaudioclient/include/media/AidlConversionUtil.h
+// Originally extracted from frameworks/av/media/libaudioclient/include/media/AidlConversionUtil.h
 namespace android::gui::aidl_utils {
 
 /**
@@ -68,7 +70,7 @@
  *
  * return_type method(type0 param0, ...)
  */
-static inline status_t statusTFromBinderStatus(const ::android::binder::Status &status) {
+static inline status_t statusTFromBinderStatus(const ::android::binder::Status& status) {
     return status.isOk() ? OK // check OK,
         : status.serviceSpecificErrorCode() // service-side error, not standard Java exception
                                             // (fromServiceSpecificError)
@@ -84,8 +86,8 @@
  * where Java callers expect an exception, not an integer return value.
  */
 static inline ::android::binder::Status binderStatusFromStatusT(
-        status_t status, const char *optionalMessage = nullptr) {
-    const char *const emptyIfNull = optionalMessage == nullptr ? "" : optionalMessage;
+        status_t status, const char* optionalMessage = nullptr) {
+    const char* const emptyIfNull = optionalMessage == nullptr ? "" : optionalMessage;
     // From binder::Status instructions:
     //  Prefer a generic exception code when possible, then a service specific
     //  code, and finally a status_t for low level failures or legacy support.
@@ -111,4 +113,26 @@
     return Status::fromServiceSpecificError(status, emptyIfNull);
 }
 
+static inline Rect fromARect(ARect rect) {
+    return Rect(rect.left, rect.top, rect.right, rect.bottom);
+}
+
+static inline ARect toARect(Rect rect) {
+    ARect aRect;
+
+    aRect.left = rect.left;
+    aRect.top = rect.top;
+    aRect.right = rect.right;
+    aRect.bottom = rect.bottom;
+    return aRect;
+}
+
+static inline ARect toARect(int32_t left, int32_t top, int32_t right, int32_t bottom) {
+    return toARect(Rect(left, top, right, bottom));
+}
+
+static inline ARect toARect(int32_t width, int32_t height) {
+    return toARect(Rect(width, height));
+}
+
 } // namespace android::gui::aidl_utils

diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 4dafc57..d787d6c 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h

@@ -103,15 +103,21 @@
     void onFrameDequeued(const uint64_t) override;
     void onFrameCancelled(const uint64_t) override;
 
+    TransactionCompletedCallbackTakesContext makeTransactionCommittedCallbackThunk();
     void transactionCommittedCallback(nsecs_t latchTime, const sp<Fence>& presentFence,
                                       const std::vector<SurfaceControlStats>& stats);
+
+    TransactionCompletedCallbackTakesContext makeTransactionCallbackThunk();
     virtual void transactionCallback(nsecs_t latchTime, const sp<Fence>& presentFence,
                                      const std::vector<SurfaceControlStats>& stats);
+
+    ReleaseBufferCallback makeReleaseBufferCallbackThunk();
     void releaseBufferCallback(const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
                                std::optional<uint32_t> currentMaxAcquiredBufferCount);
     void releaseBufferCallbackLocked(const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
                                      std::optional<uint32_t> currentMaxAcquiredBufferCount,
                                      bool fakeRelease) REQUIRES(mMutex);
+
     bool syncNextTransaction(std::function<void(SurfaceComposerClient::Transaction*)> callback,
                              bool acquireSingleBuffer = true);
     void stopContinuousSyncTransaction();
@@ -181,15 +187,6 @@
     // BufferQueue internally allows 1 more than
     // the max to be acquired
     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;
 
@@ -318,6 +315,51 @@
     std::function<void(const std::string&)> mTransactionHangCallback;
 
     std::unordered_set<uint64_t> mSyncedFrameNumbers GUARDED_BY(mMutex);
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(BUFFER_RELEASE_CHANNEL)
+    class BufferReleaseReader {
+    public:
+        BufferReleaseReader() = default;
+        BufferReleaseReader(std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint>);
+        BufferReleaseReader& operator=(BufferReleaseReader&&);
+
+        // Block until we can read a buffer release message.
+        //
+        // Returns:
+        // * OK if a ReleaseCallbackId and Fence were successfully read.
+        // * WOULD_BLOCK if the blocking read was interrupted by interruptBlockingRead.
+        // * UNKNOWN_ERROR if something went wrong.
+        status_t readBlocking(ReleaseCallbackId& outId, sp<Fence>& outReleaseFence,
+                              uint32_t& outMaxAcquiredBufferCount);
+
+        // Signals the reader's eventfd to wake up any threads waiting on readBlocking.
+        void interruptBlockingRead();
+
+    private:
+        std::mutex mMutex;
+        std::unique_ptr<gui::BufferReleaseChannel::ConsumerEndpoint> mEndpoint GUARDED_BY(mMutex);
+        android::base::unique_fd mEpollFd;
+        android::base::unique_fd mEventFd;
+    };
+
+    // BufferReleaseChannel is used to communicate buffer releases from SurfaceFlinger to
+    // the client. See BBQBufferQueueProducer::dequeueBuffer for details.
+    std::shared_ptr<BufferReleaseReader> mBufferReleaseReader;
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> mBufferReleaseProducer;
+
+    class BufferReleaseThread {
+    public:
+        BufferReleaseThread() = default;
+        ~BufferReleaseThread();
+        void start(const sp<BLASTBufferQueue>&);
+
+    private:
+        std::shared_ptr<std::atomic_bool> mRunning;
+        std::shared_ptr<BufferReleaseReader> mReader;
+    };
+
+    BufferReleaseThread mBufferReleaseThread;
+#endif
 };
 
 } // namespace android

diff --git a/libs/gui/include/gui/DisplayCaptureArgs.h b/libs/gui/include/gui/DisplayCaptureArgs.h
deleted file mode 100644
index e29ce41..0000000
--- a/libs/gui/include/gui/DisplayCaptureArgs.h
+++ /dev/null

@@ -1,84 +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.
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/IBinder.h>
-#include <binder/Parcel.h>
-#include <binder/Parcelable.h>
-#include <gui/SpHash.h>
-#include <ui/GraphicTypes.h>
-#include <ui/PixelFormat.h>
-#include <ui/Rect.h>
-#include <unordered_set>
-
-namespace android::gui {
-
-struct CaptureArgs : public Parcelable {
-    const static int32_t UNSET_UID = -1;
-    virtual ~CaptureArgs() = default;
-
-    ui::PixelFormat pixelFormat{ui::PixelFormat::RGBA_8888};
-    Rect sourceCrop;
-    float frameScaleX{1};
-    float frameScaleY{1};
-    bool captureSecureLayers{false};
-    int32_t uid{UNSET_UID};
-    // Force capture to be in a color space. If the value is ui::Dataspace::UNKNOWN, the captured
-    // result will be in a colorspace appropriate for capturing the display contents
-    // The display may use non-RGB dataspace (ex. displayP3) that could cause pixel data could be
-    // different from SRGB (byte per color), and failed when checking colors in tests.
-    // NOTE: In normal cases, we want the screen to be captured in display's colorspace.
-    ui::Dataspace dataspace = ui::Dataspace::UNKNOWN;
-
-    // The receiver of the capture can handle protected buffer. A protected buffer has
-    // GRALLOC_USAGE_PROTECTED usage bit and must not be accessed unprotected behaviour.
-    // Any read/write access from unprotected context will result in undefined behaviour.
-    // Protected contents are typically DRM contents. This has no direct implication to the
-    // secure property of the surface, which is specified by the application explicitly to avoid
-    // the contents being accessed/captured by screenshot or unsecure display.
-    bool allowProtected = false;
-
-    bool grayscale = false;
-
-    std::unordered_set<sp<IBinder>, SpHash<IBinder>> excludeHandles;
-
-    // Hint that the caller will use the screenshot animation as part of a transition animation.
-    // The canonical example would be screen rotation - in such a case any color shift in the
-    // screenshot is a detractor so composition in the display's colorspace is required.
-    // Otherwise, the system may choose a colorspace that is more appropriate for use-cases
-    // such as file encoding or for blending HDR content into an ap's UI, where the display's
-    // exact colorspace is not an appropriate intermediate result.
-    // Note that if the caller is requesting a specific dataspace, this hint does nothing.
-    bool hintForSeamlessTransition = false;
-
-    virtual status_t writeToParcel(Parcel* output) const;
-    virtual status_t readFromParcel(const Parcel* input);
-};
-
-struct DisplayCaptureArgs : CaptureArgs {
-    sp<IBinder> displayToken;
-    uint32_t width{0};
-    uint32_t height{0};
-
-    status_t writeToParcel(Parcel* output) const override;
-    status_t readFromParcel(const Parcel* input) override;
-};
-
-}; // namespace android::gui

diff --git a/libs/gui/include/gui/FrameTimestamps.h b/libs/gui/include/gui/FrameTimestamps.h
index 3d1be4d..462081b 100644
--- a/libs/gui/include/gui/FrameTimestamps.h
+++ b/libs/gui/include/gui/FrameTimestamps.h

@@ -116,7 +116,7 @@
     // Public for testing.
     static nsecs_t snapToNextTick(
             nsecs_t timestamp, nsecs_t tickPhase, nsecs_t tickInterval);
-    nsecs_t getReportedCompositeDeadline() const { return mCompositorTiming.deadline; };
+    nsecs_t getReportedCompositeDeadline() const { return mCompositorTiming.deadline; }
 
     nsecs_t getNextCompositeDeadline(const nsecs_t now) const;
     nsecs_t getCompositeInterval() const { return mCompositorTiming.interval; }

diff --git a/libs/gui/include/gui/IGraphicBufferProducer.h b/libs/gui/include/gui/IGraphicBufferProducer.h
index 8fca946..3aac457 100644
--- a/libs/gui/include/gui/IGraphicBufferProducer.h
+++ b/libs/gui/include/gui/IGraphicBufferProducer.h

@@ -867,6 +867,6 @@
 #endif
 
 // ----------------------------------------------------------------------------
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_GUI_IGRAPHICBUFFERPRODUCER_H

diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index 1ecc216..9a422fd 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h

@@ -18,6 +18,7 @@
 
 #include <android/gui/CachingHint.h>
 #include <android/gui/DisplayBrightness.h>
+#include <android/gui/DisplayCaptureArgs.h>
 #include <android/gui/FrameTimelineInfo.h>
 #include <android/gui/IDisplayEventConnection.h>
 #include <android/gui/IFpsListener.h>
@@ -27,6 +28,7 @@
 #include <android/gui/ITunnelModeEnabledListener.h>
 #include <android/gui/IWindowInfosListener.h>
 #include <android/gui/IWindowInfosPublisher.h>
+#include <android/gui/LayerCaptureArgs.h>
 #include <binder/IBinder.h>
 #include <binder/IInterface.h>
 #include <gui/ITransactionCompletedListener.h>
@@ -70,13 +72,6 @@
 using gui::IScreenCaptureListener;
 using gui::SpHash;
 
-namespace gui {
-
-struct DisplayCaptureArgs;
-struct LayerCaptureArgs;
-
-} // namespace gui
-
 namespace ui {
 
 struct DisplayMode;

diff --git a/libs/gui/include/gui/LayerCaptureArgs.h b/libs/gui/include/gui/LayerCaptureArgs.h
deleted file mode 100644
index fae2bcc..0000000
--- a/libs/gui/include/gui/LayerCaptureArgs.h
+++ /dev/null

@@ -1,34 +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.
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <gui/DisplayCaptureArgs.h>
-
-namespace android::gui {
-
-struct LayerCaptureArgs : CaptureArgs {
-    sp<IBinder> layerHandle;
-    bool childrenOnly{false};
-
-    status_t writeToParcel(Parcel* output) const override;
-    status_t readFromParcel(const Parcel* input) override;
-};
-
-}; // namespace android::gui

diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index d419945..2cdde32 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h

@@ -21,7 +21,9 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <android/gui/DisplayCaptureArgs.h>
 #include <android/gui/IWindowInfosReportedListener.h>
+#include <android/gui/LayerCaptureArgs.h>
 #include <android/gui/TrustedPresentationThresholds.h>
 #include <android/native_window.h>
 #include <gui/IGraphicBufferProducer.h>
@@ -35,9 +37,7 @@
 
 #include <ftl/flags.h>
 #include <gui/BufferReleaseChannel.h>
-#include <gui/DisplayCaptureArgs.h>
 #include <gui/ISurfaceComposer.h>
-#include <gui/LayerCaptureArgs.h>
 #include <gui/LayerMetadata.h>
 #include <gui/SpHash.h>
 #include <gui/SurfaceControl.h>

diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index 39207f8..e74f9ad 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h

@@ -66,6 +66,16 @@
     virtual void onBufferAttached() {}
     virtual bool needsAttachNotify() { return false; }
 #endif
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // Called if this Surface is connected to a remote implementation and it
+    // dies or becomes unavailable.
+    virtual void onRemoteDied() {}
+
+    // Clients will overwrite this if they want to receive a notification
+    // via onRemoteDied. This should return a constant value.
+    virtual bool needsDeathNotify() { return false; }
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 };
 
 class StubSurfaceListener : public SurfaceListener {
@@ -77,6 +87,15 @@
     virtual void onBufferDetached(int /*slot*/) override {}
 };
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+// Contains additional data from the queueBuffer operation.
+struct SurfaceQueueBufferOutput {
+    // True if this queueBuffer caused a buffer to be replaced in the queue
+    // (and therefore not will not be acquired)
+    bool bufferReplaced = false;
+};
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
 /*
  * An implementation of ANativeWindow that feeds graphics buffers into a
  * BufferQueue.
@@ -194,6 +213,14 @@
      * in <system/window.h>. */
     int setScalingMode(int mode);
 
+    virtual int setBuffersTimestamp(int64_t timestamp);
+    virtual int setBuffersDataSpace(ui::Dataspace dataSpace);
+    virtual int setCrop(Rect const* rect);
+    virtual int setBuffersTransform(uint32_t transform);
+    virtual int setBuffersStickyTransform(uint32_t transform);
+    virtual int setBuffersFormat(PixelFormat format);
+    virtual int setUsage(uint64_t reqUsage);
+
     // See IGraphicBufferProducer::setDequeueTimeout
     status_t setDequeueTimeout(nsecs_t timeout);
 
@@ -345,7 +372,12 @@
 protected:
     virtual int dequeueBuffer(ANativeWindowBuffer** buffer, int* fenceFd);
     virtual int cancelBuffer(ANativeWindowBuffer* buffer, int fenceFd);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd,
+                            SurfaceQueueBufferOutput* surfaceOutput = nullptr);
+#else
     virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
     virtual int perform(int operation, va_list args);
     virtual int setSwapInterval(int interval);
 
@@ -354,16 +386,9 @@
     virtual int connect(int api);
     virtual int setBufferCount(int bufferCount);
     virtual int setBuffersUserDimensions(uint32_t width, uint32_t height);
-    virtual int setBuffersFormat(PixelFormat format);
-    virtual int setBuffersTransform(uint32_t transform);
-    virtual int setBuffersStickyTransform(uint32_t transform);
-    virtual int setBuffersTimestamp(int64_t timestamp);
-    virtual int setBuffersDataSpace(ui::Dataspace dataSpace);
     virtual int setBuffersSmpte2086Metadata(const android_smpte2086_metadata* metadata);
     virtual int setBuffersCta8613Metadata(const android_cta861_3_metadata* metadata);
     virtual int setBuffersHdr10PlusMetadata(const size_t size, const uint8_t* metadata);
-    virtual int setCrop(Rect const* rect);
-    virtual int setUsage(uint64_t reqUsage);
     virtual void setSurfaceDamage(android_native_rect_t* rects, size_t numRects);
 
 public:
@@ -411,7 +436,8 @@
     // 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);
+    status_t queueBuffer(const sp<GraphicBuffer>& buffer, const sp<Fence>& fd = Fence::NO_FENCE,
+                         SurfaceQueueBufferOutput* output = nullptr);
 
     // 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.
@@ -432,8 +458,13 @@
         int fenceFd = -1;
         nsecs_t timestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
     };
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    virtual int queueBuffers(const std::vector<BatchQueuedBuffer>& buffers,
+                             std::vector<SurfaceQueueBufferOutput>* queueBufferOutputs = nullptr);
+#else
     virtual int queueBuffers(
             const std::vector<BatchQueuedBuffer>& buffers);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
 protected:
     enum { NUM_BUFFER_SLOTS = BufferQueueDefs::NUM_BUFFER_SLOTS };
@@ -470,6 +501,21 @@
         sp<SurfaceListener> mSurfaceListener;
     };
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    class ProducerDeathListenerProxy : public IBinder::DeathRecipient {
+    public:
+        ProducerDeathListenerProxy(wp<SurfaceListener> surfaceListener);
+        ProducerDeathListenerProxy(ProducerDeathListenerProxy&) = delete;
+
+        // IBinder::DeathRecipient
+        virtual void binderDied(const wp<IBinder>&) override;
+
+    private:
+        wp<SurfaceListener> mSurfaceListener;
+    };
+    friend class ProducerDeathListenerProxy;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     void querySupportedTimestampsLocked() const;
 
     void freeAllBuffers();
@@ -501,6 +547,13 @@
     // TODO: rename to mBufferProducer
     sp<IGraphicBufferProducer> mGraphicBufferProducer;
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+    // mSurfaceDeathListener gets registered as mGraphicBufferProducer's
+    // DeathRecipient when SurfaceListener::needsDeathNotify returns true and
+    // gets notified when it dies.
+    sp<ProducerDeathListenerProxy> mSurfaceDeathListener;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
+
     // mSlots stores the buffers that have been allocated for each buffer slot.
     // It is initialized to null pointers, and gets filled in with the result of
     // IGraphicBufferProducer::requestBuffer when the client dequeues a buffer from a

diff --git a/libs/gui/include/gui/view/Surface.h b/libs/gui/include/gui/view/Surface.h
index b7aba2b..7ddac81 100644
--- a/libs/gui/include/gui/view/Surface.h
+++ b/libs/gui/include/gui/view/Surface.h

@@ -59,8 +59,9 @@
     // of the full parceling to happen on its native side.
     status_t readFromParcel(const Parcel* parcel, bool nameAlreadyRead);
 
-  private:
+    std::string toString() const;
 
+private:
     static String16 readMaybeEmptyString16(const Parcel* parcel);
 };
 

diff --git a/libs/gui/libgui_flags.aconfig b/libs/gui/libgui_flags.aconfig
index c367e75..7468401 100644
--- a/libs/gui/libgui_flags.aconfig
+++ b/libs/gui/libgui_flags.aconfig

@@ -91,3 +91,11 @@
   bug: "342197847"
   is_fixed_read_only: true
 } # wb_ring_buffer
+
+flag {
+  name: "wb_camera3_and_processors"
+  namespace: "core_graphics"
+  description: "Remove usage of IGBPs in the *Processor and Camera3*"
+  bug: "342199002"
+  is_fixed_read_only: true
+} # wb_camera3_and_processors
\ No newline at end of file

diff --git a/libs/gui/rust/aidl_types/src/lib.rs b/libs/gui/rust/aidl_types/src/lib.rs
index fead018..2351df0 100644
--- a/libs/gui/rust/aidl_types/src/lib.rs
+++ b/libs/gui/rust/aidl_types/src/lib.rs

@@ -42,10 +42,7 @@
 }
 
 stub_unstructured_parcelable!(BitTube);
-stub_unstructured_parcelable!(CaptureArgs);
-stub_unstructured_parcelable!(DisplayCaptureArgs);
 stub_unstructured_parcelable!(DisplayInfo);
-stub_unstructured_parcelable!(LayerCaptureArgs);
 stub_unstructured_parcelable!(LayerDebugInfo);
 stub_unstructured_parcelable!(LayerMetadata);
 stub_unstructured_parcelable!(ParcelableVsyncEventData);

diff --git a/libs/gui/tests/Android.bp b/libs/gui/tests/Android.bp
index 1b216e9..f07747f 100644
--- a/libs/gui/tests/Android.bp
+++ b/libs/gui/tests/Android.bp

@@ -12,6 +12,34 @@
     default_applicable_licenses: ["frameworks_native_license"],
 }
 
+aidl_interface {
+    name: "libgui_test_server_aidl",
+    unstable: true,
+    srcs: ["testserver/aidl/**/*.aidl"],
+    local_include_dir: "testserver/aidl",
+    include_dirs: [
+        "frameworks/native/aidl/gui",
+    ],
+    backend: {
+        cpp: {
+            enabled: true,
+            additional_shared_libraries: [
+                "libgui",
+                "libui",
+            ],
+        },
+        java: {
+            enabled: false,
+        },
+        ndk: {
+            enabled: false,
+        },
+        rust: {
+            enabled: false,
+        },
+    },
+}
+
 cc_test {
     name: "libgui_test",
     test_suites: ["device-tests"],
@@ -30,7 +58,6 @@
     ],
 
     srcs: [
-        "LibGuiMain.cpp", // Custom gtest entrypoint
         "BLASTBufferQueue_test.cpp",
         "BufferItemConsumer_test.cpp",
         "BufferQueue_test.cpp",
@@ -38,24 +65,29 @@
         "Choreographer_test.cpp",
         "CompositorTiming_test.cpp",
         "CpuConsumer_test.cpp",
-        "EndToEndNativeInputTest.cpp",
-        "FrameRateUtilsTest.cpp",
-        "DisplayInfo_test.cpp",
         "DisplayedContentSampling_test.cpp",
+        "DisplayInfo_test.cpp",
+        "EndToEndNativeInputTest.cpp",
         "FillBuffer.cpp",
+        "FrameRateUtilsTest.cpp",
         "GLTest.cpp",
         "IGraphicBufferProducer_test.cpp",
+        "LibGuiMain.cpp", // Custom gtest entrypoint
         "Malicious.cpp",
         "MultiTextureConsumer_test.cpp",
         "RegionSampling_test.cpp",
         "StreamSplitter_test.cpp",
+        "Surface_test.cpp",
         "SurfaceTextureClient_test.cpp",
         "SurfaceTextureFBO_test.cpp",
+        "SurfaceTextureGL_test.cpp",
         "SurfaceTextureGLThreadToGL_test.cpp",
         "SurfaceTextureGLToGL_test.cpp",
-        "SurfaceTextureGL_test.cpp",
         "SurfaceTextureMultiContextGL_test.cpp",
-        "Surface_test.cpp",
+        "TestServer_test.cpp",
+        "testserver/TestServer.cpp",
+        "testserver/TestServerClient.cpp",
+        "testserver/TestServerHost.cpp",
         "TextureRenderer.cpp",
         "VsyncEventData_test.cpp",
         "WindowInfo_test.cpp",
@@ -66,10 +98,17 @@
         "android.hardware.configstore-utils",
         "libSurfaceFlingerProp",
         "libGLESv1_CM",
+        "libgui_test_server_aidl-cpp",
         "libinput",
         "libnativedisplay",
     ],
 
+    // This needs to get copied over for the test since it's not part of the
+    // platform.
+    data_libs: [
+        "libgui_test_server_aidl-cpp",
+    ],
+
     static_libs: [
         "libgmock",
     ],

diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index 6852589..eb2a61d 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp

@@ -20,7 +20,7 @@
 
 #include <android-base/thread_annotations.h>
 #include <android/hardware/graphics/common/1.2/types.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/BufferQueueCore.h>
 #include <gui/BufferQueueProducer.h>
 #include <gui/FrameTimestamps.h>
@@ -229,7 +229,8 @@
                                                  ISurfaceComposerClient::eFXSurfaceBufferState,
                                                  /*parent*/ mRootSurfaceControl->getHandle());
 
-        mCaptureArgs.sourceCrop = Rect(ui::Size(mDisplayWidth, mDisplayHeight));
+        mCaptureArgs.captureArgs.sourceCrop =
+                gui::aidl_utils::toARect(mDisplayWidth, mDisplayHeight);
         mCaptureArgs.layerHandle = mRootSurfaceControl->getHandle();
     }
 

diff --git a/libs/gui/tests/LibGuiMain.cpp b/libs/gui/tests/LibGuiMain.cpp
index 10f7207..7c7c2cc 100644
--- a/libs/gui/tests/LibGuiMain.cpp
+++ b/libs/gui/tests/LibGuiMain.cpp

@@ -14,8 +14,15 @@
  * limitations under the License.
  */
 
-#include "gtest/gtest.h"
-#include "log/log.h"
+#include <android-base/unique_fd.h>
+#include <gtest/gtest.h>
+#include <log/log.h>
+
+#include "testserver/TestServer.h"
+#include "testserver/TestServerClient.h"
+#include "testserver/TestServerHost.h"
+
+using namespace android;
 
 namespace {
 
@@ -32,7 +39,34 @@
 } // namespace
 
 int main(int argc, char** argv) {
+    // There are three modes that we can run in to support the libgui TestServer:
+    //
+    // - libgui_test : normal mode, runs tests and fork/execs the testserver host process
+    // - libgui_test --test-server-host $recvPipeFd $sendPipeFd : TestServerHost mode, listens on
+    //   $recvPipeFd for commands and sends responses over $sendPipeFd
+    // - libgui_test --test-server $name : TestServer mode, starts a ITestService binder service
+    //   under $name
+    for (int i = 1; i < argc; i++) {
+        std::string arg = argv[i];
+        if (arg == "--test-server-host") {
+            LOG_ALWAYS_FATAL_IF(argc < (i + 2), "--test-server-host requires two pipe fds");
+            // Note that the send/recv are from our perspective.
+            base::unique_fd recvPipeFd = base::unique_fd(atoi(argv[i + 1]));
+            base::unique_fd sendPipeFd = base::unique_fd(atoi(argv[i + 2]));
+            return TestServerHostMain(argv[0], std::move(sendPipeFd), std::move(recvPipeFd));
+        }
+        if (arg == "--test-server") {
+            LOG_ALWAYS_FATAL_IF(argc < (i + 1), "--test-server requires a name");
+            return TestServerMain(argv[i + 1]);
+        }
+    }
     testing::InitGoogleTest(&argc, argv);
     testing::UnitTest::GetInstance()->listeners().Append(new TestCaseLogger());
+
+    // This has to be run *before* any test initialization, because it fork/execs a TestServerHost,
+    // which will later create new binder service. You can't do that in a forked thread after you've
+    // initialized any binder stuff, which some tests do.
+    TestServerClient::InitializeOrDie(argv[0]);
+
     return RUN_ALL_TESTS();
 }
\ No newline at end of file

diff --git a/libs/gui/tests/RegionSampling_test.cpp b/libs/gui/tests/RegionSampling_test.cpp
index 223e4b6..a0d8c53 100644
--- a/libs/gui/tests/RegionSampling_test.cpp
+++ b/libs/gui/tests/RegionSampling_test.cpp

@@ -19,7 +19,7 @@
 
 #include <android/gui/BnRegionSamplingListener.h>
 #include <binder/ProcessState.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/DisplayEventReceiver.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/Surface.h>

diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 8ab8783..88893b6 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include "gui/view/Surface.h"
 #include "Constants.h"
 #include "MockConsumer.h"
 
@@ -27,7 +28,7 @@
 #include <binder/ProcessState.h>
 #include <com_android_graphics_libgui_flags.h>
 #include <configstore/Utils.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/BufferItemConsumer.h>
 #include <gui/BufferQueue.h>
 #include <gui/CpuConsumer.h>
@@ -49,10 +50,15 @@
 #include <utils/Errors.h>
 #include <utils/String8.h>
 
+#include <chrono>
 #include <cstddef>
+#include <cstdint>
+#include <future>
 #include <limits>
 #include <thread>
 
+#include "testserver/TestServerClient.h"
+
 namespace android {
 
 using namespace std::chrono_literals;
@@ -105,6 +111,18 @@
     std::vector<sp<GraphicBuffer>> mDiscardedBuffers;
 };
 
+class DeathWatcherListener : public StubSurfaceListener {
+public:
+    virtual void onRemoteDied() { mDiedPromise.set_value(true); }
+
+    virtual bool needsDeathNotify() { return true; }
+
+    std::future<bool> getDiedFuture() { return mDiedPromise.get_future(); }
+
+private:
+    std::promise<bool> mDiedPromise;
+};
+
 class SurfaceTest : public ::testing::Test {
 protected:
     SurfaceTest() {
@@ -2363,6 +2381,142 @@
 
     EXPECT_EQ(OK, surface->disconnect(NATIVE_WINDOW_API_CPU));
 }
+
+TEST_F(SurfaceTest, ViewSurface_toString) {
+    view::Surface surface{};
+    EXPECT_EQ("", surface.toString());
+
+    surface.name = String16("name");
+    EXPECT_EQ("name", surface.toString());
+}
+
+TEST_F(SurfaceTest, TestRemoteSurfaceDied_CallbackCalled) {
+    sp<TestServerClient> testServer = TestServerClient::Create();
+    sp<IGraphicBufferProducer> producer = testServer->CreateProducer();
+    EXPECT_NE(nullptr, producer);
+
+    sp<Surface> surface = sp<Surface>::make(producer);
+    sp<DeathWatcherListener> deathWatcher = sp<DeathWatcherListener>::make();
+    EXPECT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, deathWatcher));
+
+    auto diedFuture = deathWatcher->getDiedFuture();
+    EXPECT_EQ(OK, testServer->Kill());
+
+    diedFuture.wait();
+    EXPECT_TRUE(diedFuture.get());
+}
+
+TEST_F(SurfaceTest, TestRemoteSurfaceDied_Disconnect_CallbackNotCalled) {
+    sp<TestServerClient> testServer = TestServerClient::Create();
+    sp<IGraphicBufferProducer> producer = testServer->CreateProducer();
+    EXPECT_NE(nullptr, producer);
+
+    sp<Surface> surface = sp<Surface>::make(producer);
+    sp<DeathWatcherListener> deathWatcher = sp<DeathWatcherListener>::make();
+    EXPECT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, deathWatcher));
+    EXPECT_EQ(OK, surface->disconnect(NATIVE_WINDOW_API_CPU));
+
+    auto watcherDiedFuture = deathWatcher->getDiedFuture();
+    EXPECT_EQ(OK, testServer->Kill());
+
+    std::future_status status = watcherDiedFuture.wait_for(std::chrono::seconds(1));
+    EXPECT_EQ(std::future_status::timeout, status);
+}
+
+TEST_F(SurfaceTest, QueueBufferOutput_TracksReplacements) {
+    sp<BufferItemConsumer> consumer = sp<BufferItemConsumer>::make(GRALLOC_USAGE_SW_READ_OFTEN);
+    ASSERT_EQ(OK, consumer->setMaxBufferCount(3));
+    ASSERT_EQ(OK, consumer->setMaxAcquiredBufferCount(1));
+
+    sp<Surface> surface = consumer->getSurface();
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+
+    // Async mode sets up an extra buffer so the surface can queue it without waiting.
+    ASSERT_EQ(OK, surface->setMaxDequeuedBufferCount(1));
+    ASSERT_EQ(OK, surface->setAsyncMode(true));
+    ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, listener));
+
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+    SurfaceQueueBufferOutput output;
+    BufferItem item;
+
+    // We can queue directly, without an output arg.
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence));
+    EXPECT_EQ(OK, consumer->acquireBuffer(&item, 0));
+    EXPECT_EQ(OK, consumer->releaseBuffer(item));
+
+    // We can queue with an output arg, and that we don't expect to see a replacement.
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence, &output));
+    EXPECT_FALSE(output.bufferReplaced);
+
+    // We expect see a replacement when we queue a second buffer in async mode, and the consumer
+    // hasn't acquired the first one yet.
+    EXPECT_EQ(OK, surface->dequeueBuffer(&buffer, &fence));
+    EXPECT_EQ(OK, surface->queueBuffer(buffer, fence, &output));
+    EXPECT_TRUE(output.bufferReplaced);
+}
+
+TEST_F(SurfaceTest, QueueBufferOutput_TracksReplacements_Plural) {
+    sp<BufferItemConsumer> consumer = sp<BufferItemConsumer>::make(GRALLOC_USAGE_SW_READ_OFTEN);
+    ASSERT_EQ(OK, consumer->setMaxBufferCount(4));
+    ASSERT_EQ(OK, consumer->setMaxAcquiredBufferCount(1));
+
+    sp<Surface> surface = consumer->getSurface();
+    consumer->setName(String8("TRPTest"));
+    sp<StubSurfaceListener> listener = sp<StubSurfaceListener>::make();
+
+    // Async mode sets up an extra buffer so the surface can queue it without waiting.
+    ASSERT_EQ(OK, surface->setMaxDequeuedBufferCount(2));
+    ASSERT_EQ(OK, surface->setAsyncMode(true));
+    ASSERT_EQ(OK, surface->connect(NATIVE_WINDOW_API_CPU, listener));
+
+    // dequeueBuffers requires a vector of a certain size:
+    std::vector<Surface::BatchBuffer> buffers(2);
+    std::vector<Surface::BatchQueuedBuffer> queuedBuffers;
+    std::vector<SurfaceQueueBufferOutput> outputs;
+    BufferItem item;
+
+    auto moveBuffersToQueuedBuffers = [&]() {
+        EXPECT_EQ(2u, buffers.size());
+        EXPECT_NE(nullptr, buffers[0].buffer);
+        EXPECT_NE(nullptr, buffers[1].buffer);
+
+        queuedBuffers.clear();
+        for (auto& buffer : buffers) {
+            auto& queuedBuffer = queuedBuffers.emplace_back();
+            queuedBuffer.buffer = buffer.buffer;
+            queuedBuffer.fenceFd = buffer.fenceFd;
+            queuedBuffer.timestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
+        }
+        buffers = {{}, {}};
+    };
+
+    // We can queue directly, without an output arg.
+    EXPECT_EQ(OK, surface->dequeueBuffers(&buffers));
+    moveBuffersToQueuedBuffers();
+    EXPECT_EQ(OK, surface->queueBuffers(queuedBuffers));
+    EXPECT_EQ(OK, consumer->acquireBuffer(&item, 0));
+    EXPECT_EQ(OK, consumer->releaseBuffer(item));
+
+    // We can queue with an output arg. Only the second one should be replaced.
+    EXPECT_EQ(OK, surface->dequeueBuffers(&buffers));
+    moveBuffersToQueuedBuffers();
+    EXPECT_EQ(OK, surface->queueBuffers(queuedBuffers, &outputs));
+    EXPECT_EQ(2u, outputs.size());
+    EXPECT_FALSE(outputs[0].bufferReplaced);
+    EXPECT_TRUE(outputs[1].bufferReplaced);
+
+    // Since we haven't acquired anything, both queued buffers will replace the original one.
+    EXPECT_EQ(OK, surface->dequeueBuffers(&buffers));
+    moveBuffersToQueuedBuffers();
+    EXPECT_EQ(OK, surface->queueBuffers(queuedBuffers, &outputs));
+    EXPECT_EQ(2u, outputs.size());
+    EXPECT_TRUE(outputs[0].bufferReplaced);
+    EXPECT_TRUE(outputs[1].bufferReplaced);
+}
 #endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
 
 } // namespace android

diff --git a/libs/gui/tests/TestServer_test.cpp b/libs/gui/tests/TestServer_test.cpp
new file mode 100644
index 0000000..d640782
--- /dev/null
+++ b/libs/gui/tests/TestServer_test.cpp

@@ -0,0 +1,99 @@
+/*
+ * 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 <gtest/gtest.h>
+
+#include <SurfaceFlingerProperties.h>
+#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/AidlUtil.h>
+#include <gui/BufferItemConsumer.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 <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>
+
+#include "binder/IInterface.h"
+#include "testserver/TestServerClient.h"
+
+namespace android {
+
+namespace {
+
+class TestServerTest : public ::testing::Test {
+protected:
+    TestServerTest() { ProcessState::self()->startThreadPool(); }
+};
+
+} // namespace
+
+TEST_F(TestServerTest, Create) {
+    EXPECT_NE(nullptr, TestServerClient::Create());
+}
+
+TEST_F(TestServerTest, CreateProducer) {
+    sp<TestServerClient> client = TestServerClient::Create();
+    EXPECT_NE(nullptr, client->CreateProducer());
+}
+
+TEST_F(TestServerTest, KillServer) {
+    class DeathWaiter : public IBinder::DeathRecipient {
+    public:
+        virtual void binderDied(const wp<IBinder>&) override { mPromise.set_value(true); }
+        std::future<bool> getFuture() { return mPromise.get_future(); }
+
+        std::promise<bool> mPromise;
+    };
+
+    sp<TestServerClient> client = TestServerClient::Create();
+    sp<IGraphicBufferProducer> producer = client->CreateProducer();
+    EXPECT_NE(nullptr, producer);
+
+    sp<DeathWaiter> deathWaiter = sp<DeathWaiter>::make();
+    EXPECT_EQ(OK, IInterface::asBinder(producer)->linkToDeath(deathWaiter));
+
+    auto deathWaiterFuture = deathWaiter->getFuture();
+    EXPECT_EQ(OK, client->Kill());
+    EXPECT_EQ(nullptr, client->CreateProducer());
+
+    EXPECT_TRUE(deathWaiterFuture.get());
+}
+
+} // namespace android

diff --git a/libs/gui/tests/testserver/TestServer.cpp b/libs/gui/tests/testserver/TestServer.cpp
new file mode 100644
index 0000000..cd8824e
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServer.cpp

@@ -0,0 +1,114 @@
+/*
+ * 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 "TestServer"
+
+#include <android-base/stringprintf.h>
+#include <binder/IInterface.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <binder/Status.h>
+#include <gui/BufferQueue.h>
+#include <gui/IConsumerListener.h>
+#include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/view/Surface.h>
+#include <libgui_test_server/BnTestServer.h>
+#include <log/log.h>
+#include <utils/Errors.h>
+
+#include <cstdint>
+#include <cstdlib>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "TestServer.h"
+
+namespace android {
+
+namespace {
+class TestConsumerListener : public BnConsumerListener {
+    virtual void onFrameAvailable(const BufferItem&) override {}
+    virtual void onBuffersReleased() override {}
+    virtual void onSidebandStreamChanged() override {}
+};
+
+class TestServiceImpl : public libgui_test_server::BnTestServer {
+public:
+    TestServiceImpl(const char* name) : mName(name) {}
+
+    virtual binder::Status createProducer(view::Surface* out) override {
+        std::lock_guard<std::mutex> lock(mMutex);
+
+        BufferQueueHolder bq;
+        BufferQueue::createBufferQueue(&bq.producer, &bq.consumer);
+        sp<TestConsumerListener> listener = sp<TestConsumerListener>::make();
+        bq.consumer->consumerConnect(listener, /*controlledByApp*/ true);
+
+        uint64_t id = 0;
+        bq.producer->getUniqueId(&id);
+        std::string name = base::StringPrintf("%s-%" PRIu64, mName, id);
+
+        out->name = String16(name.c_str());
+        out->graphicBufferProducer = bq.producer;
+        mBqs.push_back(std::move(bq));
+
+        return binder::Status::ok();
+    }
+
+    virtual binder::Status killNow() override {
+        ALOGE("LibGUI Test Service %s dying in response to killNow", mName);
+        _exit(0);
+        // Not reached:
+        return binder::Status::ok();
+    }
+
+private:
+    std::mutex mMutex;
+    const char* mName;
+
+    struct BufferQueueHolder {
+        sp<IGraphicBufferProducer> producer;
+        sp<IGraphicBufferConsumer> consumer;
+    };
+
+    std::vector<BufferQueueHolder> mBqs;
+};
+} // namespace
+
+int TestServerMain(const char* name) {
+    ProcessState::self()->startThreadPool();
+
+    sp<TestServiceImpl> testService = sp<TestServiceImpl>::make(name);
+    ALOGE("service");
+    sp<IServiceManager> serviceManager(defaultServiceManager());
+    LOG_ALWAYS_FATAL_IF(OK != serviceManager->addService(String16(name), testService));
+
+    ALOGD("LibGUI Test Service %s STARTED", name);
+
+    IPCThreadState::self()->joinThreadPool();
+
+    ALOGW("LibGUI Test Service %s DIED", name);
+
+    return 0;
+}
+
+} // namespace android
\ No newline at end of file

diff --git a/libs/gui/tests/testserver/TestServer.h b/libs/gui/tests/testserver/TestServer.h
new file mode 100644
index 0000000..4226f1b
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServer.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.
+ */
+
+#pragma once
+
+namespace android {
+
+/*
+ * Main method for a libgui ITestServer server.
+ *
+ * This must be called without any binder setup having been done, because you can't fork and do
+ * binder things once ProcessState is set up.
+ * @param name The service name of the test server to start.
+ * @return retcode
+ */
+int TestServerMain(const char* name);
+
+} // namespace android

diff --git a/libs/gui/tests/testserver/TestServerClient.cpp b/libs/gui/tests/testserver/TestServerClient.cpp
new file mode 100644
index 0000000..e388074
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServerClient.cpp

@@ -0,0 +1,199 @@
+/*
+ * 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 <sys/wait.h>
+#include <cerrno>
+#define LOG_TAG "TestServerClient"
+
+#include <android-base/stringprintf.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <libgui_test_server/ITestServer.h>
+#include <log/log.h>
+#include <utils/Errors.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <atomic>
+#include <csignal>
+#include <cstdlib>
+#include <mutex>
+#include <string>
+
+#include "TestServerClient.h"
+#include "TestServerCommon.h"
+
+namespace android {
+
+namespace {
+
+std::string GetUniqueServiceName() {
+    static std::atomic<int> uniqueId = 1;
+
+    pid_t pid = getpid();
+    int id = uniqueId++;
+    return base::StringPrintf("Libgui-TestServer-%d-%d", pid, id);
+}
+
+struct RemoteTestServerHostHolder {
+    RemoteTestServerHostHolder(pid_t pid, int sendFd, int recvFd)
+          : mPid(pid), mSendFd(sendFd), mRecvFd(recvFd) {}
+    ~RemoteTestServerHostHolder() {
+        std::lock_guard lock(mMutex);
+
+        kill(mPid, SIGKILL);
+        close(mSendFd);
+        close(mRecvFd);
+    }
+
+    pid_t CreateTestServerOrDie(std::string name) {
+        std::lock_guard lock(mMutex);
+
+        CreateServerRequest request;
+        strlcpy(request.name, name.c_str(), sizeof(request.name) / sizeof(request.name[0]));
+
+        ssize_t bytes = write(mSendFd, &request, sizeof(request));
+        LOG_ALWAYS_FATAL_IF(bytes != sizeof(request));
+
+        CreateServerResponse response;
+        bytes = read(mRecvFd, &response, sizeof(response));
+        LOG_ALWAYS_FATAL_IF(bytes != sizeof(response));
+
+        return response.pid;
+    }
+
+private:
+    std::mutex mMutex;
+
+    pid_t mPid;
+    int mSendFd;
+    int mRecvFd;
+};
+
+std::unique_ptr<RemoteTestServerHostHolder> g_remoteTestServerHostHolder = nullptr;
+
+} // namespace
+
+void TestServerClient::InitializeOrDie(const char* filename) {
+    int sendPipeFds[2];
+    int ret = pipe(sendPipeFds);
+    LOG_ALWAYS_FATAL_IF(ret, "Unable to create subprocess send pipe");
+
+    int recvPipeFds[2];
+    ret = pipe(recvPipeFds);
+    LOG_ALWAYS_FATAL_IF(ret, "Unable to create subprocess recv pipe");
+
+    pid_t childPid = fork();
+    LOG_ALWAYS_FATAL_IF(childPid < 0, "Unable to fork child process");
+
+    if (childPid == 0) {
+        // We forked!
+        close(sendPipeFds[1]);
+        close(recvPipeFds[0]);
+
+        // We'll be reading from the parent's "send" and writing to the parent's "recv".
+        std::string sendPipe = std::to_string(sendPipeFds[0]);
+        std::string recvPipe = std::to_string(recvPipeFds[1]);
+        char* args[] = {
+                const_cast<char*>(filename),
+                const_cast<char*>("--test-server-host"),
+                const_cast<char*>(sendPipe.c_str()),
+                const_cast<char*>(recvPipe.c_str()),
+                nullptr,
+        };
+
+        ret = execv(filename, args);
+        ALOGE("Failed to exec libguiTestServer. ret=%d errno=%d (%s)", ret, errno, strerror(errno));
+        status_t status = -errno;
+        write(recvPipeFds[1], &status, sizeof(status));
+        _exit(EXIT_FAILURE);
+    }
+
+    close(sendPipeFds[0]);
+    close(recvPipeFds[1]);
+
+    // Check for an OK status that the host started. If so, we're good to go.
+    status_t status;
+    ret = read(recvPipeFds[0], &status, sizeof(status));
+    LOG_ALWAYS_FATAL_IF(ret != sizeof(status), "Unable to read from pipe: %d", ret);
+    LOG_ALWAYS_FATAL_IF(OK != status, "Pipe returned failed status: %d", status);
+
+    g_remoteTestServerHostHolder =
+            std::make_unique<RemoteTestServerHostHolder>(childPid, sendPipeFds[1], recvPipeFds[0]);
+}
+
+sp<TestServerClient> TestServerClient::Create() {
+    std::string serviceName = GetUniqueServiceName();
+
+    pid_t childPid = g_remoteTestServerHostHolder->CreateTestServerOrDie(serviceName);
+    ALOGD("Created child server %s with pid %d", serviceName.c_str(), childPid);
+
+    sp<libgui_test_server::ITestServer> server =
+            waitForService<libgui_test_server::ITestServer>(String16(serviceName.c_str()));
+    LOG_ALWAYS_FATAL_IF(server == nullptr);
+    ALOGD("Created connected to child server %s", serviceName.c_str());
+
+    return sp<TestServerClient>::make(server);
+}
+
+TestServerClient::TestServerClient(const sp<libgui_test_server::ITestServer>& server)
+      : mServer(server) {}
+
+TestServerClient::~TestServerClient() {
+    Kill();
+}
+
+sp<IGraphicBufferProducer> TestServerClient::CreateProducer() {
+    std::lock_guard<std::mutex> lock(mMutex);
+
+    if (!mIsAlive) {
+        return nullptr;
+    }
+
+    view::Surface surface;
+    binder::Status status = mServer->createProducer(&surface);
+
+    if (!status.isOk()) {
+        ALOGE("Failed to create remote producer. Error: %s", status.exceptionMessage().c_str());
+        return nullptr;
+    }
+
+    if (!surface.graphicBufferProducer) {
+        ALOGE("Remote producer returned no IGBP.");
+        return nullptr;
+    }
+
+    return surface.graphicBufferProducer;
+}
+
+status_t TestServerClient::Kill() {
+    std::lock_guard<std::mutex> lock(mMutex);
+    if (!mIsAlive) {
+        return DEAD_OBJECT;
+    }
+
+    mServer->killNow();
+    mServer = nullptr;
+    mIsAlive = false;
+
+    return OK;
+}
+
+} // namespace android

diff --git a/libs/gui/tests/testserver/TestServerClient.h b/libs/gui/tests/testserver/TestServerClient.h
new file mode 100644
index 0000000..5329634
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServerClient.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 <libgui_test_server/ITestServer.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class TestServerClient : public RefBase {
+public:
+    static void InitializeOrDie(const char* filename);
+    static sp<TestServerClient> Create();
+
+    TestServerClient(const sp<libgui_test_server::ITestServer>& server);
+    virtual ~TestServerClient() override;
+
+    sp<IGraphicBufferProducer> CreateProducer();
+    status_t Kill();
+
+private:
+    std::mutex mMutex;
+
+    sp<libgui_test_server::ITestServer> mServer;
+    bool mIsAlive = true;
+};
+
+} // namespace android

diff --git a/libs/gui/tests/testserver/TestServerCommon.h b/libs/gui/tests/testserver/TestServerCommon.h
new file mode 100644
index 0000000..7370f20
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServerCommon.h

@@ -0,0 +1,43 @@
+/*
+ * 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 <fcntl.h>
+
+namespace android {
+
+/*
+ * Test -> TestServerHost Request to create a new ITestServer fork.
+ */
+struct CreateServerRequest {
+    /*
+     * Service name for new ITestServer.
+     */
+    char name[128];
+};
+
+/*
+ * TestServerHost -> Test Response for creating an ITestServer fork.
+ */
+struct CreateServerResponse {
+    /*
+     * pid of new ITestServer.
+     */
+    pid_t pid;
+};
+
+} // namespace android
\ No newline at end of file

diff --git a/libs/gui/tests/testserver/TestServerHost.cpp b/libs/gui/tests/testserver/TestServerHost.cpp
new file mode 100644
index 0000000..696c3b9
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServerHost.cpp

@@ -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.
+ */
+
+#define LOG_TAG "TestServerHost"
+
+#include <android-base/unique_fd.h>
+#include <binder/IInterface.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <binder/Status.h>
+#include <gui/BufferQueue.h>
+#include <gui/IConsumerListener.h>
+#include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <libgui_test_server/BnTestServer.h>
+#include <log/log.h>
+#include <utils/Errors.h>
+
+#include <memory>
+#include <vector>
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <cstddef>
+#include <cstdlib>
+
+#include "TestServerCommon.h"
+#include "TestServerHost.h"
+
+namespace android {
+
+namespace {
+
+pid_t ForkTestServer(const char* filename, char* name) {
+    pid_t childPid = fork();
+    LOG_ALWAYS_FATAL_IF(childPid == -1);
+
+    if (childPid != 0) {
+        return childPid;
+    }
+
+    // We forked!
+    const char* test_server_flag = "--test-server";
+    char* args[] = {
+            const_cast<char*>(filename),
+            const_cast<char*>(test_server_flag),
+            name,
+            nullptr,
+    };
+
+    int ret = execv(filename, args);
+    ALOGE("Failed to exec libgui_test as a TestServer. ret=%d errno=%d (%s)", ret, errno,
+          strerror(errno));
+    _exit(EXIT_FAILURE);
+}
+
+} // namespace
+
+int TestServerHostMain(const char* filename, base::unique_fd sendPipeFd,
+                       base::unique_fd recvPipeFd) {
+    status_t status = OK;
+    LOG_ALWAYS_FATAL_IF(sizeof(status) != write(sendPipeFd.get(), &status, sizeof(status)));
+
+    ALOGE("Launched TestServerHost");
+
+    while (true) {
+        CreateServerRequest request = {};
+        ssize_t bytes = read(recvPipeFd.get(), &request, sizeof(request));
+        LOG_ALWAYS_FATAL_IF(bytes != sizeof(request));
+        pid_t childPid = ForkTestServer(filename, request.name);
+
+        CreateServerResponse response = {};
+        response.pid = childPid;
+        bytes = write(sendPipeFd.get(), &response, sizeof(response));
+        LOG_ALWAYS_FATAL_IF(bytes != sizeof(response));
+    }
+
+    return 0;
+}
+
+} // namespace android
\ No newline at end of file

diff --git a/libs/gui/tests/testserver/TestServerHost.h b/libs/gui/tests/testserver/TestServerHost.h
new file mode 100644
index 0000000..df22c0c
--- /dev/null
+++ b/libs/gui/tests/testserver/TestServerHost.h

@@ -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.
+ */
+
+#pragma once
+
+#include <android-base/unique_fd.h>
+
+#include <string>
+
+namespace android {
+
+/*
+ * Main method for a host process for TestServers.
+ *
+ * This must be called without any binder setup having been done, because you can't fork and do
+ * binder things once ProcessState is set up.
+ * @param filename File name of this binary / the binary to execve into
+ * @param sendPipeFd Pipe FD to send data to.
+ * @param recvPipeFd Pipe FD to receive data from.
+ * @return retcode
+ */
+int TestServerHostMain(const char* filename, base::unique_fd sendPipeFd,
+                       base::unique_fd recvPipeFd);
+
+} // namespace android

diff --git a/libs/gui/tests/testserver/aidl/libgui_test_server/ITestServer.aidl b/libs/gui/tests/testserver/aidl/libgui_test_server/ITestServer.aidl
new file mode 100644
index 0000000..c939ea0
--- /dev/null
+++ b/libs/gui/tests/testserver/aidl/libgui_test_server/ITestServer.aidl

@@ -0,0 +1,12 @@
+package libgui_test_server;
+
+import android.view.Surface;
+
+// Test server for libgui_test
+interface ITestServer {
+    // Create a new producer. The server will have connected to the consumer.
+    Surface createProducer();
+
+    // Kills the server immediately.
+    void killNow();
+}

diff --git a/libs/gui/view/Surface.cpp b/libs/gui/view/Surface.cpp
index 7c15e7c..84c2a6a 100644
--- a/libs/gui/view/Surface.cpp
+++ b/libs/gui/view/Surface.cpp

@@ -121,5 +121,11 @@
     return str.value_or(String16());
 }
 
+std::string Surface::toString() const {
+    std::stringstream out;
+    out << name;
+    return out.str();
+}
+
 } // namespace view
 } // namespace android

diff --git a/libs/input/Resampler.cpp b/libs/input/Resampler.cpp
index 836a97a..c663649 100644
--- a/libs/input/Resampler.cpp
+++ b/libs/input/Resampler.cpp

@@ -21,6 +21,7 @@
 
 #include <android-base/logging.h>
 #include <android-base/properties.h>
+#include <ftl/enum.h>
 
 #include <input/Resampler.h>
 #include <utils/Timers.h>
@@ -56,12 +57,17 @@
 
 constexpr std::chrono::milliseconds RESAMPLE_MAX_PREDICTION{8};
 
+bool canResampleTool(ToolType toolType) {
+    return toolType == ToolType::FINGER || toolType == ToolType::MOUSE ||
+            toolType == ToolType::STYLUS || toolType == ToolType::UNKNOWN;
+}
+
 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) {
+PointerCoords calculateResampledCoords(const PointerCoords& a, const PointerCoords& b,
+                                       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;
@@ -72,52 +78,143 @@
 } // 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);
+    const size_t numSamples = motionEvent.getHistorySize() + 1;
+    const size_t latestIndex = numSamples - 1;
+    const size_t secondToLatestIndex = (latestIndex > 0) ? (latestIndex - 1) : 0;
+    for (size_t sampleIndex = secondToLatestIndex; sampleIndex < numSamples; ++sampleIndex) {
+        std::vector<Pointer> pointers;
+        const size_t numPointers = motionEvent.getPointerCount();
+        for (size_t pointerIndex = 0; pointerIndex < numPointers; ++pointerIndex) {
+            // getSamplePointerCoords is the vector representation of a getHistorySize by
+            // getPointerCount matrix.
+            const PointerCoords& pointerCoords =
+                    motionEvent.getSamplePointerCoords()[sampleIndex * numPointers + pointerIndex];
+            pointers.push_back(
+                    Pointer{*motionEvent.getPointerProperties(pointerIndex), pointerCoords});
+        }
+        mLatestSamples.pushBack(
+                Sample{nanoseconds{motionEvent.getHistoricalEventTime(sampleIndex)}, pointers});
     }
 }
 
-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;
+LegacyResampler::Sample LegacyResampler::messageToSample(const InputMessage& message) {
+    std::vector<Pointer> pointers;
+    for (uint32_t i = 0; i < message.body.motion.pointerCount; ++i) {
+        pointers.push_back(Pointer{message.body.motion.pointers[i].properties,
+                                   message.body.motion.pointers[i].coords});
+    }
+    return Sample{nanoseconds{message.body.motion.eventTime}, pointers};
+}
+
+bool LegacyResampler::pointerPropertiesResampleable(const Sample& target, const Sample& auxiliary) {
+    if (target.pointers.size() > auxiliary.pointers.size()) {
+        LOG_IF(INFO, debugResampling())
+                << "Not resampled. Auxiliary sample has fewer pointers than target sample.";
+        return false;
+    }
+    for (size_t i = 0; i < target.pointers.size(); ++i) {
+        if (target.pointers[i].properties.id != auxiliary.pointers[i].properties.id) {
+            LOG_IF(INFO, debugResampling()) << "Not resampled. Pointer ID mismatch.";
+            return false;
+        }
+        if (target.pointers[i].properties.toolType != auxiliary.pointers[i].properties.toolType) {
+            LOG_IF(INFO, debugResampling()) << "Not resampled. Pointer ToolType mismatch.";
+            return false;
+        }
+        if (!canResampleTool(target.pointers[i].properties.toolType)) {
+            LOG_IF(INFO, debugResampling())
+                    << "Not resampled. Cannot resample "
+                    << ftl::enum_string(target.pointers[i].properties.toolType) << " ToolType.";
+            return false;
+        }
+    }
+    return true;
+}
+
+bool LegacyResampler::canInterpolate(const InputMessage& message) const {
+    LOG_IF(FATAL, mLatestSamples.empty())
+            << "Not resampled. mLatestSamples must not be empty to interpolate.";
+
+    const Sample& pastSample = *(mLatestSamples.end() - 1);
+    const Sample& futureSample = messageToSample(message);
+
+    if (!pointerPropertiesResampleable(pastSample, futureSample)) {
+        return false;
+    }
+
+    const nanoseconds delta = futureSample.eventTime - pastSample.eventTime;
     if (delta < RESAMPLE_MIN_DELTA) {
         LOG_IF(INFO, debugResampling()) << "Not resampled. Delta is too small: " << delta << "ns.";
-        return;
+        return false;
     }
+    return true;
+}
+
+std::optional<LegacyResampler::Sample> LegacyResampler::attemptInterpolation(
+        nanoseconds resampleTime, const InputMessage& futureSample) const {
+    if (!canInterpolate(futureSample)) {
+        return std::nullopt;
+    }
+    LOG_IF(FATAL, mLatestSamples.empty())
+            << "Not resampled. mLatestSamples must not be empty to interpolate.";
+
+    const Sample& pastSample = *(mLatestSamples.end() - 1);
+
+    const nanoseconds delta =
+            nanoseconds{futureSample.body.motion.eventTime} - pastSample.eventTime;
     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());
+    std::vector<Pointer> resampledPointers;
+    for (size_t i = 0; i < pastSample.pointers.size(); ++i) {
+        const PointerCoords& resampledCoords =
+                calculateResampledCoords(pastSample.pointers[i].coords,
+                                         futureSample.body.motion.pointers[i].coords, alpha);
+        resampledPointers.push_back(Pointer{pastSample.pointers[i].properties, resampledCoords});
+    }
+    return Sample{resampleTime, resampledPointers};
 }
 
-void LegacyResampler::extrapolate(const nanoseconds resampleTime, MotionEvent& motionEvent) const {
+bool LegacyResampler::canExtrapolate() const {
     if (mLatestSamples.size() < 2) {
-        return;
+        LOG_IF(INFO, debugResampling()) << "Not resampled. Not enough data.";
+        return false;
     }
-    const Sample pastSample = *(mLatestSamples.end() - 2);
-    const Sample presentSample = *(mLatestSamples.end() - 1);
-    const nanoseconds delta =
-            static_cast<nanoseconds>(presentSample.eventTime - pastSample.eventTime);
+
+    const Sample& pastSample = *(mLatestSamples.end() - 2);
+    const Sample& presentSample = *(mLatestSamples.end() - 1);
+
+    if (!pointerPropertiesResampleable(presentSample, pastSample)) {
+        return false;
+    }
+
+    const nanoseconds delta = presentSample.eventTime - pastSample.eventTime;
     if (delta < RESAMPLE_MIN_DELTA) {
         LOG_IF(INFO, debugResampling()) << "Not resampled. Delta is too small: " << delta << "ns.";
-        return;
+        return false;
     } else if (delta > RESAMPLE_MAX_DELTA) {
         LOG_IF(INFO, debugResampling()) << "Not resampled. Delta is too large: " << delta << "ns.";
-        return;
+        return false;
     }
+    return true;
+}
+
+std::optional<LegacyResampler::Sample> LegacyResampler::attemptExtrapolation(
+        nanoseconds resampleTime) const {
+    if (!canExtrapolate()) {
+        return std::nullopt;
+    }
+    LOG_IF(FATAL, mLatestSamples.size() < 2)
+            << "Not resampled. mLatestSamples must have at least two samples to extrapolate.";
+
+    const Sample& pastSample = *(mLatestSamples.end() - 2);
+    const Sample& presentSample = *(mLatestSamples.end() - 1);
+
+    const nanoseconds delta = presentSample.eventTime - pastSample.eventTime;
     // 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 farthestPrediction =
+            presentSample.eventTime + std::min<nanoseconds>(delta / 2, RESAMPLE_MAX_PREDICTION);
     const nanoseconds newResampleTime =
             (resampleTime > farthestPrediction) ? (farthestPrediction) : (resampleTime);
     LOG_IF(INFO, debugResampling() && newResampleTime == farthestPrediction)
@@ -128,24 +225,36 @@
             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());
+    std::vector<Pointer> resampledPointers;
+    for (size_t i = 0; i < presentSample.pointers.size(); ++i) {
+        const PointerCoords& resampledCoords =
+                calculateResampledCoords(pastSample.pointers[i].coords,
+                                         presentSample.pointers[i].coords, alpha);
+        resampledPointers.push_back(Pointer{presentSample.pointers[i].properties, resampledCoords});
+    }
+    return Sample{newResampleTime, resampledPointers};
 }
 
-void LegacyResampler::resampleMotionEvent(const nanoseconds resampleTime, MotionEvent& motionEvent,
+inline void LegacyResampler::addSampleToMotionEvent(const Sample& sample,
+                                                    MotionEvent& motionEvent) {
+    motionEvent.addSample(sample.eventTime.count(), sample.asPointerCoords().data(),
+                          motionEvent.getId());
+}
+
+void LegacyResampler::resampleMotionEvent(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);
+
+    const std::optional<Sample> sample = (futureSample != nullptr)
+            ? (attemptInterpolation(resampleTime, *futureSample))
+            : (attemptExtrapolation(resampleTime));
+    if (sample.has_value()) {
+        addSampleToMotionEvent(*sample, motionEvent);
     }
-    LOG_IF(INFO, debugResampling()) << "Not resampled. Not enough data.";
 }
 } // namespace android

diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 500f7b4..8e91f11 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig

@@ -164,3 +164,17 @@
   description: "Show touch and pointer indicators when mirroring a single task"
   bug: "310179437"
 }
+
+flag {
+  name: "include_relative_axis_values_for_captured_touchpads"
+  namespace: "input"
+  description: "Include AXIS_RELATIVE_X and AXIS_RELATIVE_Y values when reporting touches from captured touchpads."
+  bug: "330522990"
+}
+
+flag {
+  name: "enable_per_device_input_latency_metrics"
+  namespace: "input"
+  description: "Capture input latency metrics on a per device granular level using histograms."
+  bug: "270049345"
+}

diff --git a/libs/input/tests/Resampler_test.cpp b/libs/input/tests/Resampler_test.cpp
index 135f8b4..7ae9a28 100644
--- a/libs/input/tests/Resampler_test.cpp
+++ b/libs/input/tests/Resampler_test.cpp

@@ -59,6 +59,9 @@
 struct InputSample {
     std::chrono::milliseconds eventTime{0};
     std::vector<Pointer> pointers{};
+
+    explicit InputSample(std::chrono::milliseconds eventTime, const std::vector<Pointer>& pointers)
+          : eventTime{eventTime}, pointers{pointers} {}
     /**
      * Converts from InputSample to InputMessage. Enables calling LegacyResampler methods only with
      * the relevant data for tests.
@@ -67,21 +70,18 @@
 };
 
 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;
+    InputMessageBuilder messageBuilder =
+            InputMessageBuilder{InputMessage::Type::MOTION, /*seq=*/0}
+                    .eventTime(std::chrono::nanoseconds{eventTime}.count())
+                    .source(AINPUT_SOURCE_TOUCHSCREEN)
+                    .downTime(0);
+
+    for (const Pointer& pointer : pointers) {
+        messageBuilder.pointer(
+                PointerBuilder{pointer.id, pointer.toolType}.x(pointer.x).y(pointer.y).isResampled(
+                        pointer.isResampled));
     }
-    return message;
+    return messageBuilder.build();
 }
 
 struct InputStream {
@@ -132,14 +132,6 @@
 
     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.
@@ -153,42 +145,14 @@
      * 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 assertMotionEventIsResampledAndCoordsNear(
+            const MotionEvent& original, const MotionEvent& resampled,
+            const std::vector<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());
@@ -207,18 +171,29 @@
     EXPECT_EQ(beforeCall.getDisplayId(), afterCall.getDisplayId());
 }
 
-void ResamplerTest::assertMotionEventIsResampledAndCoordsNear(const MotionEvent& original,
-                                                              const MotionEvent& resampled,
-                                                              const PointerCoords& expectedCoords) {
+void ResamplerTest::assertMotionEventIsResampledAndCoordsNear(
+        const MotionEvent& original, const MotionEvent& resampled,
+        const std::vector<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);
+
+    const size_t numPointers = resampled.getPointerCount();
+    const size_t beginLatestSample = resampledSampleSize - 1;
+    for (size_t i = 0; i < numPointers; ++i) {
+        SCOPED_TRACE(i);
+        EXPECT_EQ(original.getPointerId(i), resampled.getPointerId(i));
+        EXPECT_EQ(original.getToolType(i), resampled.getToolType(i));
+
+        const PointerCoords& resampledCoords =
+                resampled.getSamplePointerCoords()[beginLatestSample * numPointers + i];
+
+        EXPECT_TRUE(resampledCoords.isResampled);
+        EXPECT_NEAR(expectedCoords[i].getX(), resampledCoords.getX(), EPSILON);
+        EXPECT_NEAR(expectedCoords[i].getY(), resampledCoords.getY(), EPSILON);
+    }
 }
 
 void ResamplerTest::assertMotionEventIsNotResampled(const MotionEvent& original,
@@ -233,7 +208,7 @@
     constexpr float TOUCH_MAJOR_VALUE = 1.0f;
 
     MotionEvent motionEvent =
-            InputStream{{{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
     constexpr std::chrono::nanoseconds eventTime{10ms};
@@ -255,34 +230,40 @@
     EXPECT_EQ(motionEvent.getTouchMajor(0), TOUCH_MAJOR_VALUE);
 
     assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
-                                              Pointer{.id = 0,
-                                                      .x = 2.2f,
-                                                      .y = 2.4f,
-                                                      .isResampled = true});
+                                              {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};
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
     const MotionEvent originalMotionEvent = motionEvent;
-    mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, /*futureSample=*/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}}}},
+            InputStream{{InputSample{4ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}},
+                         InputSample{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}}}},
+            InputStream{{InputSample{11ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .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.
@@ -308,28 +289,30 @@
  */
 TEST_F(ResamplerTest, SinglePointerSingleSampleInterpolation) {
     MotionEvent motionEvent =
-            InputStream{{{10ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
     const InputMessage futureSample =
-            InputSample{15ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}};
+            InputSample{15ms, {{.id = 0, .x = 2.0f, .y = 4.0f, .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});
+                                              {Pointer{.id = 0,
+                                                       .x = 1.2f,
+                                                       .y = 2.4f,
+                                                       .isResampled = true}});
 }
 
 TEST_F(ResamplerTest, SinglePointerDeltaTooSmallInterpolation) {
     MotionEvent motionEvent =
-            InputStream{{{10ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
     const InputMessage futureSample =
-            InputSample{11ms, {{.id = 0, .x = 2.0f, .y = 2.0f, .isResampled = false}}};
+            InputSample{11ms, {{.id = 0, .x = 2.0f, .y = 4.0f, .isResampled = false}}};
 
     const MotionEvent originalMotionEvent = motionEvent;
 
@@ -342,25 +325,26 @@
  * 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}}}},
+    MotionEvent firstMotionEvent =
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
-    mResampler->resampleMotionEvent(10ms, previousMotionEvent, nullptr);
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, nullptr);
 
-    MotionEvent motionEvent =
-            InputStream{{{10ms, {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false}}}},
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 2.0f, .y = 4.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
-    const MotionEvent originalMotionEvent = motionEvent;
+    const MotionEvent originalMotionEvent = secondMotionEvent;
 
-    mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, nullptr);
 
-    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
-                                              Pointer{.id = 0,
-                                                      .x = 1.0f,
-                                                      .y = 1.0f,
-                                                      .isResampled = true});
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, secondMotionEvent,
+                                              {Pointer{.id = 0,
+                                                       .x = 2.2f,
+                                                       .y = 4.4f,
+                                                       .isResampled = true}});
     // Integrity of the whole motionEvent
     // History size should increment by 1
     // Check if the resampled value is the last one
@@ -370,27 +354,30 @@
 
 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}}}},
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{10ms,
+                                     {{.id = 0, .x = 2.0f, .y = 3.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
+
     const InputMessage futureSample =
-            InputSample{15ms, {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false}}};
+            InputSample{15ms, {{.id = 0, .x = 3.0f, .y = 5.0f, .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});
+                                              {Pointer{.id = 0,
+                                                       .x = 2.2f,
+                                                       .y = 3.4f,
+                                                       .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}}}},
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{10ms,
+                                     {{.id = 0, .x = 2.0f, .y = 4.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
     const MotionEvent originalMotionEvent = motionEvent;
@@ -398,16 +385,17 @@
     mResampler->resampleMotionEvent(11ms, motionEvent, nullptr);
 
     assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
-                                              Pointer{.id = 0,
-                                                      .x = 2.2f,
-                                                      .y = 2.2f,
-                                                      .isResampled = true});
+                                              {Pointer{.id = 0,
+                                                       .x = 2.2f,
+                                                       .y = 4.4f,
+                                                       .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}}}},
+            InputStream{{InputSample{9ms, {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{10ms,
+                                     {{.id = 0, .x = 2.0f, .y = 4.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
     const MotionEvent originalMotionEvent = motionEvent;
@@ -419,8 +407,9 @@
 
 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}}}},
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{26ms,
+                                     {{.id = 0, .x = 2.0f, .y = 4.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
     const MotionEvent originalMotionEvent = motionEvent;
@@ -432,8 +421,9 @@
 
 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}}}},
+            InputStream{{InputSample{5ms, {{.id = 0, .x = 1.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{25ms,
+                                     {{.id = 0, .x = 2.0f, .y = 4.0f, .isResampled = false}}}},
                         AMOTION_EVENT_ACTION_MOVE};
 
     const MotionEvent originalMotionEvent = motionEvent;
@@ -441,9 +431,424 @@
     mResampler->resampleMotionEvent(43ms, motionEvent, nullptr);
 
     assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
-                                              Pointer{.id = 0,
-                                                      .x = 2.4f,
-                                                      .y = 2.4f,
-                                                      .isResampled = true});
+                                              {Pointer{.id = 0,
+                                                       .x = 2.4f,
+                                                       .y = 4.8f,
+                                                       .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerSingleSampleInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .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},
+                         {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              {Pointer{.x = 2.2f, .y = 2.2f, .isResampled = true},
+                                               Pointer{.x = 3.2f, .y = 3.2f, .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerSingleSampleExtrapolation) {
+    MotionEvent firstMotionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, /*futureSample=*/nullptr);
+
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, secondMotionEvent,
+                                              {Pointer{.x = 3.4f, .y = 3.4f, .isResampled = true},
+                                               Pointer{.x = 4.4f, .y = 4.4f, .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerMultipleSampleInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{10ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+    const InputMessage futureSample =
+            InputSample{15ms,
+                        {{.id = 0, .x = 5.0f, .y = 5.0f, .isResampled = false},
+                         {.id = 1, .x = 6.0f, .y = 6.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              {Pointer{.x = 3.4f, .y = 3.4f, .isResampled = true},
+                                               Pointer{.x = 4.4f, .y = 4.4f, .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerMultipleSampleExtrapolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}},
+                         InputSample{10ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              {Pointer{.x = 3.4f, .y = 3.4f, .isResampled = true},
+                                               Pointer{.x = 4.4f, .y = 4.4f, .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerIncreaseNumPointersInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .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},
+                         {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                         {.id = 2, .x = 5.0f, .y = 5.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsResampledAndCoordsNear(originalMotionEvent, motionEvent,
+                                              {Pointer{.x = 1.4f, .y = 1.4f, .isResampled = true},
+                                               Pointer{.x = 2.4f, .y = 2.4f, .isResampled = true}});
+
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{25ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                                      {.id = 2, .x = 5.0f, .y = 5.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const InputMessage secondFutureSample =
+            InputSample{30ms,
+                        {{.id = 0, .x = 5.0f, .y = 5.0f, .isResampled = false},
+                         {.id = 1, .x = 6.0f, .y = 6.0f, .isResampled = false},
+                         {.id = 2, .x = 7.0f, .y = 7.0f, .isResampled = false}}};
+
+    const MotionEvent originalSecondMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(27ms, secondMotionEvent, &secondFutureSample);
+
+    assertMotionEventIsResampledAndCoordsNear(originalSecondMotionEvent, secondMotionEvent,
+                                              {Pointer{.x = 3.8f, .y = 3.8f, .isResampled = true},
+                                               Pointer{.x = 4.8f, .y = 4.8f, .isResampled = true},
+                                               Pointer{.x = 5.8f, .y = 5.8f, .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerIncreaseNumPointersExtrapolation) {
+    MotionEvent firstMotionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, /*futureSample=*/nullptr);
+
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                                      {.id = 2, .x = 5.0f, .y = 5.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent secondOriginalMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsNotResampled(secondOriginalMotionEvent, secondMotionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDecreaseNumPointersInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                                      {.id = 2, .x = 5.0f, .y = 5.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const InputMessage futureSample =
+            InputSample{15ms,
+                        {{.id = 0, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                         {.id = 1, .x = 5.0f, .y = 5.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDecreaseNumPointersExtrapolation) {
+    MotionEvent firstMotionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false},
+                                      {.id = 2, .x = 3.0f, .y = 3.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, /*futureSample=*/nullptr);
+
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false},
+                                      {.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent secondOriginalMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsResampledAndCoordsNear(secondOriginalMotionEvent, secondMotionEvent,
+                                              {Pointer{.x = 3.4f, .y = 3.4f, .isResampled = true},
+                                               Pointer{.x = 4.4f, .y = 4.4f, .isResampled = true}});
+}
+
+TEST_F(ResamplerTest, MultiplePointerDifferentIdOrderInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const InputMessage futureSample =
+            InputSample{15ms,
+                        {{.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                         {.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDifferentIdOrderExtrapolation) {
+    MotionEvent firstMotionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, /*futureSample=*/nullptr);
+
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                                      {.id = 0, .x = 3.0f, .y = 3.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent secondOriginalMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsNotResampled(secondOriginalMotionEvent, secondMotionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDifferentIdsInterpolation) {
+    MotionEvent motionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const InputMessage futureSample =
+            InputSample{15ms,
+                        {{.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                         {.id = 2, .x = 3.0f, .y = 3.0f, .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDifferentIdsExtrapolation) {
+    MotionEvent firstMotionEvent =
+            InputStream{{InputSample{5ms,
+                                     {{.id = 0, .x = 1.0f, .y = 1.0f, .isResampled = false},
+                                      {.id = 1, .x = 2.0f, .y = 2.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, /*futureSample=*/nullptr);
+
+    MotionEvent secondMotionEvent =
+            InputStream{{InputSample{10ms,
+                                     {{.id = 1, .x = 4.0f, .y = 4.0f, .isResampled = false},
+                                      {.id = 2, .x = 3.0f, .y = 3.0f, .isResampled = false}}}},
+                        AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent secondOriginalMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsNotResampled(secondOriginalMotionEvent, secondMotionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDifferentToolTypeInterpolation) {
+    MotionEvent motionEvent = InputStream{{InputSample{10ms,
+                                                       {{.id = 0,
+                                                         .toolType = ToolType::FINGER,
+                                                         .x = 1.0f,
+                                                         .y = 1.0f,
+                                                         .isResampled = false},
+                                                        {.id = 1,
+                                                         .toolType = ToolType::FINGER,
+                                                         .x = 2.0f,
+                                                         .y = 2.0f,
+                                                         .isResampled = false}}}},
+                                          AMOTION_EVENT_ACTION_MOVE};
+
+    const InputMessage futureSample = InputSample{15ms,
+                                                  {{.id = 0,
+                                                    .toolType = ToolType::FINGER,
+                                                    .x = 3.0,
+                                                    .y = 3.0,
+                                                    .isResampled = false},
+                                                   {.id = 1,
+                                                    .toolType = ToolType::STYLUS,
+                                                    .x = 4.0,
+                                                    .y = 4.0,
+                                                    .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, &futureSample);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerDifferentToolTypeExtrapolation) {
+    MotionEvent firstMotionEvent = InputStream{{InputSample{5ms,
+                                                            {{.id = 0,
+                                                              .toolType = ToolType::FINGER,
+                                                              .x = 1.0f,
+                                                              .y = 1.0f,
+                                                              .isResampled = false},
+                                                             {.id = 1,
+                                                              .toolType = ToolType::FINGER,
+                                                              .x = 2.0f,
+                                                              .y = 2.0f,
+                                                              .isResampled = false}}}},
+                                               AMOTION_EVENT_ACTION_MOVE};
+
+    mResampler->resampleMotionEvent(9ms, firstMotionEvent, /*futureSample=*/nullptr);
+
+    MotionEvent secondMotionEvent = InputStream{{InputSample{10ms,
+                                                             {{.id = 0,
+                                                               .toolType = ToolType::FINGER,
+                                                               .x = 1.0f,
+                                                               .y = 1.0f,
+                                                               .isResampled = false},
+                                                              {.id = 1,
+                                                               .toolType = ToolType::STYLUS,
+                                                               .x = 2.0f,
+                                                               .y = 2.0f,
+                                                               .isResampled = false}}}},
+                                                AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent secondOriginalMotionEvent = secondMotionEvent;
+
+    mResampler->resampleMotionEvent(11ms, secondMotionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsNotResampled(secondOriginalMotionEvent, secondMotionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerShouldNotResampleToolTypeInterpolation) {
+    MotionEvent motionEvent = InputStream{{InputSample{10ms,
+                                                       {{.id = 0,
+                                                         .toolType = ToolType::PALM,
+                                                         .x = 1.0f,
+                                                         .y = 1.0f,
+                                                         .isResampled = false},
+                                                        {.id = 1,
+                                                         .toolType = ToolType::PALM,
+                                                         .x = 2.0f,
+                                                         .y = 2.0f,
+                                                         .isResampled = false}}}},
+                                          AMOTION_EVENT_ACTION_MOVE};
+
+    const InputMessage futureSample = InputSample{15ms,
+                                                  {{.id = 0,
+                                                    .toolType = ToolType::PALM,
+                                                    .x = 3.0,
+                                                    .y = 3.0,
+                                                    .isResampled = false},
+                                                   {.id = 1,
+                                                    .toolType = ToolType::PALM,
+                                                    .x = 4.0,
+                                                    .y = 4.0,
+                                                    .isResampled = false}}};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
+}
+
+TEST_F(ResamplerTest, MultiplePointerShouldNotResampleToolTypeExtrapolation) {
+    MotionEvent motionEvent = InputStream{{InputSample{5ms,
+                                                       {{.id = 0,
+                                                         .toolType = ToolType::PALM,
+                                                         .x = 1.0f,
+                                                         .y = 1.0f,
+                                                         .isResampled = false},
+                                                        {.id = 1,
+                                                         .toolType = ToolType::PALM,
+                                                         .x = 2.0f,
+                                                         .y = 2.0f,
+                                                         .isResampled = false}}},
+                                           InputSample{10ms,
+                                                       {{.id = 0,
+                                                         .toolType = ToolType::PALM,
+                                                         .x = 3.0f,
+                                                         .y = 3.0f,
+                                                         .isResampled = false},
+                                                        {.id = 1,
+                                                         .toolType = ToolType::PALM,
+                                                         .x = 4.0f,
+                                                         .y = 4.0f,
+                                                         .isResampled = false}}}},
+                                          AMOTION_EVENT_ACTION_MOVE};
+
+    const MotionEvent originalMotionEvent = motionEvent;
+
+    mResampler->resampleMotionEvent(11ms, motionEvent, /*futureSample=*/nullptr);
+
+    assertMotionEventIsNotResampled(originalMotionEvent, motionEvent);
 }
 } // namespace android

diff --git a/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h b/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h
index 099f47d..f1453bd 100644
--- a/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h
+++ b/libs/nativedisplay/include/surfacetexture/SurfaceTexture.h

@@ -98,11 +98,25 @@
      * is created in a detached state, and attachToContext must be called before
      * calls to updateTexImage.
      */
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    SurfaceTexture(uint32_t tex, uint32_t textureTarget, bool useFenceSync, bool isControlledByApp);
+
+    SurfaceTexture(uint32_t textureTarget, bool useFenceSync, bool isControlledByApp);
+
+    SurfaceTexture(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.")));
+
+    SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t textureTarget, bool useFenceSync,
+                   bool isControlledByApp)
+            __attribute((deprecated("Prefer ctors that create their own surface and consumer.")));
+#else
     SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t tex, uint32_t textureTarget,
                    bool useFenceSync, bool isControlledByApp);
 
     SurfaceTexture(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
@@ -499,6 +513,8 @@
     friend class EGLConsumer;
 
 private:
+    void initialize();
+
     // Proxy listener to avoid having SurfaceTexture directly implement FrameAvailableListener as it
     // is extending ConsumerBase which also implements FrameAvailableListener.
     class FrameAvailableListenerProxy : public ConsumerBase::FrameAvailableListener {

diff --git a/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp b/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp
index 3a09204..ce232cc 100644
--- a/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp
+++ b/libs/nativedisplay/surfacetexture/SurfaceTexture.cpp

@@ -35,6 +35,49 @@
 
 static const mat4 mtxIdentity;
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+SurfaceTexture::SurfaceTexture(uint32_t tex, uint32_t texTarget, bool useFenceSync,
+                               bool isControlledByApp)
+      : ConsumerBase(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(tex),
+        mUseFenceSync(useFenceSync),
+        mTexTarget(texTarget),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mOpMode(OpMode::attachedToGL) {
+    initialize();
+}
+
+SurfaceTexture::SurfaceTexture(uint32_t texTarget, bool useFenceSync, bool isControlledByApp)
+      : ConsumerBase(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),
+        mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+        mOpMode(OpMode::detached) {
+    initialize();
+}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+
 SurfaceTexture::SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t tex,
                                uint32_t texTarget, bool useFenceSync, bool isControlledByApp)
       : ConsumerBase(bq, isControlledByApp),
@@ -53,11 +96,7 @@
         mTexTarget(texTarget),
         mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
         mOpMode(OpMode::attachedToGL) {
-    SFT_LOGV("SurfaceTexture");
-
-    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
-
-    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+    initialize();
 }
 
 SurfaceTexture::SurfaceTexture(const sp<IGraphicBufferConsumer>& bq, uint32_t texTarget,
@@ -78,11 +117,7 @@
         mTexTarget(texTarget),
         mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
         mOpMode(OpMode::detached) {
-    SFT_LOGV("SurfaceTexture");
-
-    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
-
-    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+    initialize();
 }
 
 status_t SurfaceTexture::setDefaultBufferSize(uint32_t w, uint32_t h) {
@@ -531,4 +566,12 @@
 }
 #endif
 
+void SurfaceTexture::initialize() {
+    SFT_LOGV("SurfaceTexture");
+
+    memcpy(mCurrentTransformMatrix, mtxIdentity.asArray(), sizeof(mCurrentTransformMatrix));
+
+    mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+}
+
 } // namespace android

diff --git a/libs/nativewindow/tests/ANativeWindowTest.cpp b/libs/nativewindow/tests/ANativeWindowTest.cpp
index 6cf8291..937ff02 100644
--- a/libs/nativewindow/tests/ANativeWindowTest.cpp
+++ b/libs/nativewindow/tests/ANativeWindowTest.cpp

@@ -50,9 +50,14 @@
         const ::testing::TestInfo* const test_info =
                 ::testing::UnitTest::GetInstance()->current_test_info();
         ALOGV("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        mItemConsumer = new BufferItemConsumer(GRALLOC_USAGE_SW_READ_OFTEN);
+        mWindow = new TestableSurface(mItemConsumer->getSurface()->getIGraphicBufferProducer());
+#else
         BufferQueue::createBufferQueue(&mProducer, &mConsumer);
         mItemConsumer = new BufferItemConsumer(mConsumer, GRALLOC_USAGE_SW_READ_OFTEN);
         mWindow = new TestableSurface(mProducer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
         const int success = native_window_api_connect(mWindow.get(), NATIVE_WINDOW_API_CPU);
         EXPECT_EQ(0, success);
     }
@@ -64,10 +69,12 @@
         const int success = native_window_api_disconnect(mWindow.get(), NATIVE_WINDOW_API_CPU);
         EXPECT_EQ(0, success);
     }
+
+#if !COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     sp<IGraphicBufferProducer> mProducer;
     sp<IGraphicBufferConsumer> mConsumer;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     sp<BufferItemConsumer> mItemConsumer;
-
     sp<TestableSurface> mWindow;
 };
 

diff --git a/libs/ui/include/ui/Fence.h b/libs/ui/include/ui/Fence.h
index 9aae145..a75ba37 100644
--- a/libs/ui/include/ui/Fence.h
+++ b/libs/ui/include/ui/Fence.h

@@ -156,6 +156,6 @@
     base::unique_fd mFenceFd;
 };
 
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_FENCE_H

diff --git a/libs/ui/include/ui/GraphicBuffer.h b/libs/ui/include/ui/GraphicBuffer.h
index 652d8ba..936bf8f 100644
--- a/libs/ui/include/ui/GraphicBuffer.h
+++ b/libs/ui/include/ui/GraphicBuffer.h

@@ -297,6 +297,6 @@
             mDeathCallbacks;
 };
 
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_GRAPHIC_BUFFER_H

diff --git a/libs/ui/include/ui/GraphicBufferAllocator.h b/libs/ui/include/ui/GraphicBufferAllocator.h
index bbb2d77..97ed05a 100644
--- a/libs/ui/include/ui/GraphicBufferAllocator.h
+++ b/libs/ui/include/ui/GraphicBufferAllocator.h

@@ -137,6 +137,6 @@
 };
 
 // ---------------------------------------------------------------------------
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_BUFFER_ALLOCATOR_H

diff --git a/libs/ui/include/ui/GraphicBufferMapper.h b/libs/ui/include/ui/GraphicBufferMapper.h
index 9da1447..91aabe9 100644
--- a/libs/ui/include/ui/GraphicBufferMapper.h
+++ b/libs/ui/include/ui/GraphicBufferMapper.h

@@ -188,7 +188,7 @@
 
 // ---------------------------------------------------------------------------
 
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_UI_BUFFER_MAPPER_H
 

diff --git a/libs/ui/include/ui/PixelFormat.h b/libs/ui/include/ui/PixelFormat.h
index cf5c2e8..1f20787 100644
--- a/libs/ui/include/ui/PixelFormat.h
+++ b/libs/ui/include/ui/PixelFormat.h

@@ -72,6 +72,6 @@
 
 uint32_t bytesPerPixel(PixelFormat format);
 
-}; // namespace android
+} // namespace android
 
 #endif // UI_PIXELFORMAT_H

diff --git a/libs/ui/include/ui/Point.h b/libs/ui/include/ui/Point.h
index d050ede..97a54be 100644
--- a/libs/ui/include/ui/Point.h
+++ b/libs/ui/include/ui/Point.h

@@ -83,6 +83,6 @@
 
 ANDROID_BASIC_TYPES_TRAITS(Point)
 
-}; // namespace android
+} // namespace android
 
 #endif // ANDROID_UI_POINT

diff --git a/libs/ui/include/ui/Rect.h b/libs/ui/include/ui/Rect.h
index 9e24a07..2eb9330 100644
--- a/libs/ui/include/ui/Rect.h
+++ b/libs/ui/include/ui/Rect.h

@@ -233,7 +233,7 @@
 
 ANDROID_BASIC_TYPES_TRAITS(Rect)
 
-}; // namespace android
+} // namespace android
 
 namespace std {
 template <>

diff --git a/libs/ui/include/ui/Region.h b/libs/ui/include/ui/Region.h
index 927c334..d1b38f3 100644
--- a/libs/ui/include/ui/Region.h
+++ b/libs/ui/include/ui/Region.h

@@ -233,7 +233,7 @@
 }
 
 // ---------------------------------------------------------------------------
-}; // namespace android
+} // namespace android
 
 namespace std {
 template <>

diff --git a/libs/vibrator/ExternalVibrationUtils.cpp b/libs/vibrator/ExternalVibrationUtils.cpp
index 54afb71..ca13afc 100644
--- a/libs/vibrator/ExternalVibrationUtils.cpp
+++ b/libs/vibrator/ExternalVibrationUtils.cpp

@@ -167,7 +167,7 @@
             }
         }
 
-        if (adaptiveScaleFactor != 1.0f) {
+        if (adaptiveScaleFactor >= 0 && adaptiveScaleFactor != 1.0f) {
             buffer[i] *= adaptiveScaleFactor;
         }
     }

diff --git a/libs/vibrator/include/vibrator/ExternalVibrationUtils.h b/libs/vibrator/include/vibrator/ExternalVibrationUtils.h
index 322a2ac..f0760fd 100644
--- a/libs/vibrator/include/vibrator/ExternalVibrationUtils.h
+++ b/libs/vibrator/include/vibrator/ExternalVibrationUtils.h

@@ -57,7 +57,9 @@
     return (mLevel == HapticLevel::NONE || mScaleFactor == 1.0f) && mAdaptiveScaleFactor == 1.0f;
 }
 
-bool isScaleMute() const { return mLevel == HapticLevel::MUTE || mScaleFactor == 0; }
+bool isScaleMute() const {
+    return mLevel == HapticLevel::MUTE || mScaleFactor == 0 || mAdaptiveScaleFactor == 0;
+}
 
 std::string toString() const {
     std::ostringstream os;

diff --git a/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp b/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp
index 7adc9c3..9369f80 100644
--- a/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp
+++ b/libs/vibrator/tests/ExternalVibrationUtilsTest.cpp

@@ -188,9 +188,19 @@
 }
 
 TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestScaleV2ToScaleFactorUndefinedUsesHapticLevel,
+        // 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, 0.8f, -0.38f};
+    scaleBuffer(HapticScale(HapticLevel::VERY_HIGH, -1.0f /* scaleFactor */, adaptiveScaleNone));
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, 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))) {
+        // 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 };
@@ -210,9 +220,23 @@
     EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
 }
 
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestAdaptiveScaleFactorUndefinedIsIgnoredLegacyScale,
+                  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, 0.79f, -0.39f};
+    scaleBuffer(HapticLevel::VERY_HIGH, -1.0f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, 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))) {
+    // Adaptive scale mutes vibration
+    float expectedMuted[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expectedMuted), std::end(expectedMuted), 0);
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.0f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedMuted, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
     // 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 */);
@@ -234,9 +258,23 @@
     EXPECT_FLOATS_NEARLY_EQ(expectedVeryLow, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
 }
 
+TEST_F_WITH_FLAGS(ExternalVibrationUtilsTest, TestAdaptiveScaleFactorUndefinedIgnoredFixedScale,
+                  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, -1.0f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, 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))) {
+    // Adaptive scale mutes vibration
+    float expectedMuted[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expectedMuted), std::end(expectedMuted), 0);
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.0f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedMuted, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
     // 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 */);
@@ -259,9 +297,24 @@
 }
 
 TEST_F_WITH_FLAGS(
+        ExternalVibrationUtilsTest, TestAdaptiveScaleFactorUndefinedIgnoredScaleV2,
+        // 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, -1.0f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedVeryHigh, 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))) {
+    // Adaptive scale mutes vibration
+    float expectedMuted[TEST_BUFFER_LENGTH];
+    std::fill(std::begin(expectedMuted), std::end(expectedMuted), 0);
+    scaleBuffer(HapticLevel::VERY_HIGH, 0.0f /* adaptiveScaleFactor */);
+    EXPECT_FLOATS_NEARLY_EQ(expectedMuted, mBuffer, TEST_BUFFER_LENGTH, TEST_TOLERANCE);
+
     // 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 */);

diff --git a/services/audiomanager/IAudioManager.cpp b/services/audiomanager/IAudioManager.cpp
index 3ef5049..da1aae2 100644
--- a/services/audiomanager/IAudioManager.cpp
+++ b/services/audiomanager/IAudioManager.cpp

@@ -152,6 +152,12 @@
         data.writeNullableParcelable(extras);
         return remote()->transact(PORT_EVENT, data, &reply, IBinder::FLAG_ONEWAY);
     }
+
+    virtual status_t permissionUpdateBarrier() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
+        return remote()->transact(PERMISSION_UPDATE_BARRIER, data, &reply, 0);
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioManager, "android.media.IAudioService");

diff --git a/services/gpuservice/gpuwork/GpuWork.cpp b/services/gpuservice/gpuwork/GpuWork.cpp
index 1a744ab..00161e6 100644
--- a/services/gpuservice/gpuwork/GpuWork.cpp
+++ b/services/gpuservice/gpuwork/GpuWork.cpp

@@ -118,6 +118,9 @@
 }
 
 void GpuWork::initialize() {
+    // Workaround b/347947040 by allowing time for statsd / bpf setup.
+    std::this_thread::sleep_for(std::chrono::seconds(30));
+
     // Make sure BPF programs are loaded.
     bpf::waitForProgsLoaded();
 

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0
new file mode 100644
index 0000000..120a34d
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-0
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1
new file mode 100644
index 0000000..92d5bdf
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-1
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10
new file mode 100644
index 0000000..c044c84
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-10
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11
new file mode 100644
index 0000000..430552e
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-11
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12
new file mode 100644
index 0000000..f7849bb
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-12
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13
new file mode 100644
index 0000000..2f0a655
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-13
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14
new file mode 100644
index 0000000..bd8fb01
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-14
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15
new file mode 100644
index 0000000..29aa2b1
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-15
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16
new file mode 100644
index 0000000..e00100f
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-16
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17
new file mode 100644
index 0000000..db281e1
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-17
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18
new file mode 100644
index 0000000..5592c32
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-18
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2
new file mode 100644
index 0000000..5bd2b99
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-2
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3
new file mode 100644
index 0000000..2d89289
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-3
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-4 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-4
new file mode 100644
index 0000000..8f3f1c2
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-4
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5
new file mode 100644
index 0000000..95b05e7
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-5
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6
new file mode 100644
index 0000000..497a501
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-6
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7
new file mode 100644
index 0000000..9902bde
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-7
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8
new file mode 100644
index 0000000..fdaaf31
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-8
Binary files differ

diff --git a/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9 b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9
new file mode 100644
index 0000000..a197c6a
--- /dev/null
+++ b/services/gpuservice/tests/fuzzers/corpus/seed-2024-08-29-9
Binary files differ

diff --git a/services/inputflinger/PointerChoreographer.cpp b/services/inputflinger/PointerChoreographer.cpp
index 625599a..397feda 100644
--- a/services/inputflinger/PointerChoreographer.cpp
+++ b/services/inputflinger/PointerChoreographer.cpp

@@ -511,8 +511,9 @@
     std::scoped_lock _l(mLock);
 
     dump += "PointerChoreographer:\n";
-    dump += StringPrintf("show touches: %s\n", mShowTouchesEnabled ? "true" : "false");
-    dump += StringPrintf("stylus pointer icon enabled: %s\n",
+    dump += StringPrintf(INDENT "Show Touches Enabled: %s\n",
+                         mShowTouchesEnabled ? "true" : "false");
+    dump += StringPrintf(INDENT "Stylus PointerIcon Enabled: %s\n",
                          mStylusPointerIconEnabled ? "true" : "false");
 
     dump += INDENT "MousePointerControllers:\n";

diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index bcef350..250e72c 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp

@@ -52,6 +52,7 @@
 #include "Connection.h"
 #include "DebugConfig.h"
 #include "InputDispatcher.h"
+#include "InputEventTimeline.h"
 #include "trace/InputTracer.h"
 #include "trace/InputTracingPerfettoBackend.h"
 #include "trace/ThreadedBackend.h"
@@ -4642,10 +4643,9 @@
         if (args.id != android::os::IInputConstants::INVALID_INPUT_EVENT_ID &&
             IdGenerator::getSource(args.id) == IdGenerator::Source::INPUT_READER &&
             !mInputFilterEnabled) {
-            const bool isDown = args.action == AMOTION_EVENT_ACTION_DOWN;
             std::set<InputDeviceUsageSource> sources = getUsageSourcesForMotionArgs(args);
-            mLatencyTracker.trackListener(args.id, isDown, args.eventTime, args.readTime,
-                                          args.deviceId, sources);
+            mLatencyTracker.trackListener(args.id, args.eventTime, args.readTime, args.deviceId,
+                                          sources, args.action, InputEventType::MOTION);
         }
 
         needWake = enqueueInboundEventLocked(std::move(newEntry));

diff --git a/services/inputflinger/dispatcher/InputEventTimeline.cpp b/services/inputflinger/dispatcher/InputEventTimeline.cpp
index a365003..31ceb8d 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.cpp
+++ b/services/inputflinger/dispatcher/InputEventTimeline.cpp

@@ -68,13 +68,15 @@
 
 InputEventTimeline::InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime,
                                        uint16_t vendorId, uint16_t productId,
-                                       const std::set<InputDeviceUsageSource>& sources)
+                                       const std::set<InputDeviceUsageSource>& sources,
+                                       InputEventActionType inputEventActionType)
       : isDown(isDown),
         eventTime(eventTime),
         readTime(readTime),
         vendorId(vendorId),
         productId(productId),
-        sources(sources) {}
+        sources(sources),
+        inputEventActionType(inputEventActionType) {}
 
 bool InputEventTimeline::operator==(const InputEventTimeline& rhs) const {
     if (connectionTimelines.size() != rhs.connectionTimelines.size()) {
@@ -90,7 +92,8 @@
         }
     }
     return isDown == rhs.isDown && eventTime == rhs.eventTime && readTime == rhs.readTime &&
-            vendorId == rhs.vendorId && productId == rhs.productId && sources == rhs.sources;
+            vendorId == rhs.vendorId && productId == rhs.productId && sources == rhs.sources &&
+            inputEventActionType == rhs.inputEventActionType;
 }
 
 } // namespace android::inputdispatcher

diff --git a/services/inputflinger/dispatcher/InputEventTimeline.h b/services/inputflinger/dispatcher/InputEventTimeline.h
index 1756944..6668399 100644
--- a/services/inputflinger/dispatcher/InputEventTimeline.h
+++ b/services/inputflinger/dispatcher/InputEventTimeline.h

@@ -74,15 +74,39 @@
     bool mHasGraphicsTimeline = false;
 };
 
+enum class InputEventActionType : int32_t {
+    UNKNOWN_INPUT_EVENT = 0,
+    MOTION_ACTION_DOWN = 1,
+    // Motion events for ACTION_MOVE (characterizes scrolling motion)
+    MOTION_ACTION_MOVE = 2,
+    // Motion events for ACTION_UP (when the pointer first goes up)
+    MOTION_ACTION_UP = 3,
+    // Motion events for ACTION_HOVER_MOVE (pointer position on screen changes but pointer is not
+    // down)
+    MOTION_ACTION_HOVER_MOVE = 4,
+    // Motion events for ACTION_SCROLL (moving the mouse wheel)
+    MOTION_ACTION_SCROLL = 5,
+    // Key events for both ACTION_DOWN and ACTION_UP (key press and key release)
+    KEY = 6,
+
+    ftl_first = UNKNOWN_INPUT_EVENT,
+    ftl_last = KEY,
+    // Used by latency fuzzer
+    kMaxValue = ftl_last
+
+};
+
 struct InputEventTimeline {
     InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime, uint16_t vendorId,
-                       uint16_t productId, const std::set<InputDeviceUsageSource>& sources);
+                       uint16_t productId, const std::set<InputDeviceUsageSource>& sources,
+                       InputEventActionType inputEventActionType);
     const bool isDown; // True if this is an ACTION_DOWN event
     const nsecs_t eventTime;
     const nsecs_t readTime;
     const uint16_t vendorId;
     const uint16_t productId;
     const std::set<InputDeviceUsageSource> sources;
+    const InputEventActionType inputEventActionType;
 
     struct IBinderHash {
         std::size_t operator()(const sp<IBinder>& b) const {

diff --git a/services/inputflinger/dispatcher/LatencyTracker.cpp b/services/inputflinger/dispatcher/LatencyTracker.cpp
index 698bd9f..721d009 100644
--- a/services/inputflinger/dispatcher/LatencyTracker.cpp
+++ b/services/inputflinger/dispatcher/LatencyTracker.cpp

@@ -67,9 +67,10 @@
     LOG_ALWAYS_FATAL_IF(processor == nullptr);
 }
 
-void LatencyTracker::trackListener(int32_t inputEventId, bool isDown, nsecs_t eventTime,
-                                   nsecs_t readTime, DeviceId deviceId,
-                                   const std::set<InputDeviceUsageSource>& sources) {
+void LatencyTracker::trackListener(int32_t inputEventId, nsecs_t eventTime, nsecs_t readTime,
+                                   DeviceId deviceId,
+                                   const std::set<InputDeviceUsageSource>& sources,
+                                   int inputEventAction, InputEventType inputEventType) {
     reportAndPruneMatureRecords(eventTime);
     const auto it = mTimelines.find(inputEventId);
     if (it != mTimelines.end()) {
@@ -101,9 +102,43 @@
         return;
     }
 
+    const InputEventActionType inputEventActionType = [&]() {
+        switch (inputEventType) {
+            case InputEventType::MOTION: {
+                switch (inputEventAction) {
+                    case AMOTION_EVENT_ACTION_DOWN:
+                        return InputEventActionType::MOTION_ACTION_DOWN;
+                    case AMOTION_EVENT_ACTION_MOVE:
+                        return InputEventActionType::MOTION_ACTION_MOVE;
+                    case AMOTION_EVENT_ACTION_UP:
+                        return InputEventActionType::MOTION_ACTION_UP;
+                    case AMOTION_EVENT_ACTION_HOVER_MOVE:
+                        return InputEventActionType::MOTION_ACTION_HOVER_MOVE;
+                    case AMOTION_EVENT_ACTION_SCROLL:
+                        return InputEventActionType::MOTION_ACTION_SCROLL;
+                    default:
+                        return InputEventActionType::UNKNOWN_INPUT_EVENT;
+                }
+            }
+            case InputEventType::KEY: {
+                switch (inputEventAction) {
+                    case AKEY_EVENT_ACTION_DOWN:
+                    case AKEY_EVENT_ACTION_UP:
+                        return InputEventActionType::KEY;
+                    default:
+                        return InputEventActionType::UNKNOWN_INPUT_EVENT;
+                }
+            }
+            default:
+                return InputEventActionType::UNKNOWN_INPUT_EVENT;
+        }
+    }();
+
+    bool isDown = inputEventType == InputEventType::MOTION &&
+            inputEventAction == AMOTION_EVENT_ACTION_DOWN;
     mTimelines.emplace(inputEventId,
                        InputEventTimeline(isDown, eventTime, readTime, identifier->vendor,
-                                          identifier->product, sources));
+                                          identifier->product, sources, inputEventActionType));
     mEventTimes.emplace(eventTime, inputEventId);
 }
 

diff --git a/services/inputflinger/dispatcher/LatencyTracker.h b/services/inputflinger/dispatcher/LatencyTracker.h
index 890d61d..532f422 100644
--- a/services/inputflinger/dispatcher/LatencyTracker.h
+++ b/services/inputflinger/dispatcher/LatencyTracker.h

@@ -52,8 +52,9 @@
      * duplicate events that happen to have the same eventTime and inputEventId. Therefore, we
      * must drop all duplicate data.
      */
-    void trackListener(int32_t inputEventId, bool isDown, nsecs_t eventTime, nsecs_t readTime,
-                       DeviceId deviceId, const std::set<InputDeviceUsageSource>& sources);
+    void trackListener(int32_t inputEventId, nsecs_t eventTime, nsecs_t readTime, DeviceId deviceId,
+                       const std::set<InputDeviceUsageSource>& sources, int inputEventActionType,
+                       InputEventType inputEventType);
     void trackFinishedEvent(int32_t inputEventId, const sp<IBinder>& connectionToken,
                             nsecs_t deliveryTime, nsecs_t consumeTime, nsecs_t finishTime);
     void trackGraphicsLatency(int32_t inputEventId, const sp<IBinder>& connectionToken,

diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 42a03c1..7bec94e 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h

@@ -34,7 +34,9 @@
 #include <vector>
 
 #include "PointerControllerInterface.h"
+#include "TouchpadHardwareState.h"
 #include "VibrationElement.h"
+#include "include/gestures.h"
 
 // Maximum supported size of a vibration pattern.
 // Must be at least 2.
@@ -227,6 +229,9 @@
     // True to enable tap dragging on touchpads.
     bool touchpadTapDraggingEnabled;
 
+    // True if hardware state update notifications should be sent to the policy.
+    bool shouldNotifyTouchpadHardwareState;
+
     // True to enable a zone on the right-hand side of touchpads where clicks will be turned into
     // context (a.k.a. "right") clicks.
     bool touchpadRightClickZoneEnabled;
@@ -268,6 +273,7 @@
             touchpadNaturalScrollingEnabled(true),
             touchpadTapToClickEnabled(true),
             touchpadTapDraggingEnabled(false),
+            shouldNotifyTouchpadHardwareState(false),
             touchpadRightClickZoneEnabled(false),
             stylusButtonMotionEventsEnabled(true),
             stylusPointerIconEnabled(false) {}
@@ -363,6 +369,8 @@
 
     virtual std::vector<InputDeviceSensorInfo> getSensors(int32_t deviceId) = 0;
 
+    virtual std::optional<HardwareProperties> getTouchpadHardwareProperties(int32_t deviceId) = 0;
+
     /* Return true if the device can send input events to the specified display. */
     virtual bool canDispatchToDisplay(int32_t deviceId, ui::LogicalDisplayId displayId) = 0;
 
@@ -454,6 +462,10 @@
      */
     virtual void notifyInputDevicesChanged(const std::vector<InputDeviceInfo>& inputDevices) = 0;
 
+    /* Sends the hardware state of a connected touchpad */
+    virtual void notifyTouchpadHardwareState(const SelfContainedHardwareState& schs,
+                                             int32_t deviceId) = 0;
+
     /* Gets the keyboard layout for a particular input device. */
     virtual std::shared_ptr<KeyCharacterMap> getKeyboardLayoutOverlay(
             const InputDeviceIdentifier& identifier,

diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index 2daf195..70f024e 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp

@@ -725,6 +725,15 @@
     return count;
 }
 
+std::optional<HardwareProperties> InputDevice::getTouchpadHardwareProperties() {
+    std::optional<HardwareProperties> result = first_in_mappers<HardwareProperties>(
+            [](InputMapper& mapper) -> std::optional<HardwareProperties> {
+                return mapper.getTouchpadHardwareProperties();
+            });
+
+    return result;
+}
+
 void InputDevice::updateLedState(bool reset) {
     for_each_mapper([reset](InputMapper& mapper) { mapper.updateLedState(reset); });
 }

diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index f0e53b5..a5b1249 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp

@@ -33,6 +33,7 @@
 #include <utils/Thread.h>
 
 #include "InputDevice.h"
+#include "include/gestures.h"
 
 using android::base::StringPrintf;
 
@@ -817,6 +818,18 @@
     return device->getDeviceInfo().getSensors();
 }
 
+std::optional<HardwareProperties> InputReader::getTouchpadHardwareProperties(int32_t deviceId) {
+    std::scoped_lock _l(mLock);
+
+    InputDevice* device = findInputDeviceLocked(deviceId);
+
+    if (device == nullptr) {
+        return {};
+    }
+
+    return device->getTouchpadHardwareProperties();
+}
+
 bool InputReader::setLightColor(int32_t deviceId, int32_t lightId, int32_t color) {
     std::scoped_lock _l(mLock);
 

diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 93785f6..021978d 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h

@@ -141,6 +141,8 @@
 
     size_t getMapperCount();
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties();
+
     // construct and add a mapper to the input device
     template <class T, typename... Args>
     T& addMapper(int32_t eventHubId, Args... args) {

diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 4f60a8a..2cc0a00 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h

@@ -104,6 +104,8 @@
 
     std::vector<InputDeviceSensorInfo> getSensors(int32_t deviceId) override;
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties(int32_t deviceId) override;
+
     bool setLightColor(int32_t deviceId, int32_t lightId, int32_t color) override;
 
     bool setLightPlayerId(int32_t deviceId, int32_t lightId, int32_t playerId) override;

diff --git a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
index c8e7790..dd46bbc 100644
--- a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp
+++ b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.cpp

@@ -20,14 +20,19 @@
 #include <sstream>
 
 #include <android-base/stringprintf.h>
+#include <com_android_input_flags.h>
 #include <input/PrintTools.h>
 #include <linux/input-event-codes.h>
 #include <log/log_main.h>
 
+namespace input_flags = com::android::input::flags;
+
 namespace android {
 
 namespace {
 
+static constexpr uint32_t SOURCE = AINPUT_SOURCE_TOUCHPAD;
+
 int32_t actionWithIndex(int32_t action, int32_t index) {
     return action | (index << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);
 }
@@ -43,6 +48,12 @@
     return i;
 }
 
+void addRawMotionRange(InputDeviceInfo& deviceInfo, int32_t androidAxis,
+                       RawAbsoluteAxisInfo& evdevAxis) {
+    deviceInfo.addMotionRange(androidAxis, SOURCE, evdevAxis.minValue, evdevAxis.maxValue,
+                              evdevAxis.flat, evdevAxis.fuzz, evdevAxis.resolution);
+}
+
 } // namespace
 
 CapturedTouchpadEventConverter::CapturedTouchpadEventConverter(
@@ -108,8 +119,15 @@
 }
 
 void CapturedTouchpadEventConverter::populateMotionRanges(InputDeviceInfo& info) const {
-    tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_X, ABS_MT_POSITION_X);
-    tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_Y, ABS_MT_POSITION_Y);
+    if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+        tryAddRawMotionRangeWithRelative(/*byref*/ info, AMOTION_EVENT_AXIS_X,
+                                         AMOTION_EVENT_AXIS_RELATIVE_X, ABS_MT_POSITION_X);
+        tryAddRawMotionRangeWithRelative(/*byref*/ info, AMOTION_EVENT_AXIS_Y,
+                                         AMOTION_EVENT_AXIS_RELATIVE_Y, ABS_MT_POSITION_Y);
+    } else {
+        tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_X, ABS_MT_POSITION_X);
+        tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_Y, ABS_MT_POSITION_Y);
+    }
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOUCH_MAJOR, ABS_MT_TOUCH_MAJOR);
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOUCH_MINOR, ABS_MT_TOUCH_MINOR);
     tryAddRawMotionRange(/*byref*/ info, AMOTION_EVENT_AXIS_TOOL_MAJOR, ABS_MT_WIDTH_MAJOR);
@@ -135,8 +153,23 @@
                                                           int32_t evdevAxis) const {
     std::optional<RawAbsoluteAxisInfo> info = mDeviceContext.getAbsoluteAxisInfo(evdevAxis);
     if (info) {
-        deviceInfo.addMotionRange(androidAxis, SOURCE, info->minValue, info->maxValue, info->flat,
-                                  info->fuzz, info->resolution);
+        addRawMotionRange(/*byref*/ deviceInfo, androidAxis, *info);
+    }
+}
+
+void CapturedTouchpadEventConverter::tryAddRawMotionRangeWithRelative(InputDeviceInfo& deviceInfo,
+                                                                      int32_t androidAxis,
+                                                                      int32_t androidRelativeAxis,
+                                                                      int32_t evdevAxis) const {
+    std::optional<RawAbsoluteAxisInfo> axisInfo = mDeviceContext.getAbsoluteAxisInfo(evdevAxis);
+    if (axisInfo) {
+        addRawMotionRange(/*byref*/ deviceInfo, androidAxis, *axisInfo);
+
+        // The largest movement we could possibly report on a relative axis is from the minimum to
+        // the maximum (or vice versa) of the absolute axis.
+        float range = axisInfo->maxValue - axisInfo->minValue;
+        deviceInfo.addMotionRange(androidRelativeAxis, SOURCE, -range, range, axisInfo->flat,
+                                  axisInfo->fuzz, axisInfo->resolution);
     }
 }
 
@@ -163,7 +196,7 @@
     std::list<NotifyArgs> out;
     std::vector<PointerCoords> coords;
     std::vector<PointerProperties> properties;
-    std::map<size_t, size_t> coordsIndexForSlotNumber;
+    std::map<size_t /*slotNumber*/, size_t /*coordsIndex*/> coordsIndexForSlotNumber;
 
     // For all the touches that were already down, send a MOVE event with their updated coordinates.
     // A convention of the MotionEvent API is that pointer coordinates in UP events match the
@@ -175,11 +208,19 @@
             // to stay perfectly still between frames, and if it does the worst that can happen is
             // an extra MOVE event, so it's not worth the overhead of checking for changes.
             coordsIndexForSlotNumber[slotNumber] = coords.size();
-            coords.push_back(makePointerCoordsForSlot(mMotionAccumulator.getSlot(slotNumber)));
+            coords.push_back(makePointerCoordsForSlot(slotNumber));
             properties.push_back({.id = pointerId, .toolType = ToolType::FINGER});
         }
         out.push_back(
                 makeMotionArgs(when, readTime, AMOTION_EVENT_ACTION_MOVE, coords, properties));
+        if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+            // For any further events we send from this sync, the pointers won't have moved relative
+            // to the positions we just reported in this MOVE event, so zero out the relative axes.
+            for (PointerCoords& pointer : coords) {
+                pointer.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, 0);
+                pointer.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, 0);
+            }
+        }
     }
 
     std::vector<size_t> upSlots, downSlots;
@@ -234,6 +275,9 @@
                                      /*flags=*/cancel ? AMOTION_EVENT_FLAG_CANCELED : 0));
 
         freePointerIdForSlot(slotNumber);
+        if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+            mPreviousCoordsForSlotNumber.erase(slotNumber);
+        }
         coords.erase(coords.begin() + indexToRemove);
         properties.erase(properties.begin() + indexToRemove);
         // Now that we've removed some coords and properties, we might have to update the slot
@@ -254,7 +298,7 @@
                 : actionWithIndex(AMOTION_EVENT_ACTION_POINTER_DOWN, coordsIndex);
 
         coordsIndexForSlotNumber[slotNumber] = coordsIndex;
-        coords.push_back(makePointerCoordsForSlot(mMotionAccumulator.getSlot(slotNumber)));
+        coords.push_back(makePointerCoordsForSlot(slotNumber));
         properties.push_back(
                 {.id = allocatePointerIdToSlot(slotNumber), .toolType = ToolType::FINGER});
 
@@ -286,12 +330,22 @@
                             AMOTION_EVENT_INVALID_CURSOR_POSITION, mDownTime, /*videoFrames=*/{});
 }
 
-PointerCoords CapturedTouchpadEventConverter::makePointerCoordsForSlot(
-        const MultiTouchMotionAccumulator::Slot& slot) const {
+PointerCoords CapturedTouchpadEventConverter::makePointerCoordsForSlot(size_t slotNumber) {
+    const MultiTouchMotionAccumulator::Slot& slot = mMotionAccumulator.getSlot(slotNumber);
     PointerCoords coords;
     coords.clear();
     coords.setAxisValue(AMOTION_EVENT_AXIS_X, slot.getX());
     coords.setAxisValue(AMOTION_EVENT_AXIS_Y, slot.getY());
+    if (input_flags::include_relative_axis_values_for_captured_touchpads()) {
+        if (auto it = mPreviousCoordsForSlotNumber.find(slotNumber);
+            it != mPreviousCoordsForSlotNumber.end()) {
+            auto [oldX, oldY] = it->second;
+            coords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X, slot.getX() - oldX);
+            coords.setAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y, slot.getY() - oldY);
+        }
+        mPreviousCoordsForSlotNumber[slotNumber] = std::make_pair(slot.getX(), slot.getY());
+    }
+
     coords.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, slot.getTouchMajor());
     coords.setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, slot.getTouchMinor());
     coords.setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, slot.getToolMajor());

diff --git a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h
index 9b6df7a..d6c0708 100644
--- a/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h
+++ b/services/inputflinger/reader/mapper/CapturedTouchpadEventConverter.h

@@ -21,6 +21,7 @@
 #include <map>
 #include <set>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include <android/input.h>
@@ -49,12 +50,14 @@
 private:
     void tryAddRawMotionRange(InputDeviceInfo& deviceInfo, int32_t androidAxis,
                               int32_t evdevAxis) const;
+    void tryAddRawMotionRangeWithRelative(InputDeviceInfo& deviceInfo, int32_t androidAxis,
+                                          int32_t androidRelativeAxis, int32_t evdevAxis) const;
     [[nodiscard]] std::list<NotifyArgs> sync(nsecs_t when, nsecs_t readTime);
     [[nodiscard]] NotifyMotionArgs makeMotionArgs(nsecs_t when, nsecs_t readTime, int32_t action,
                                                   const std::vector<PointerCoords>& coords,
                                                   const std::vector<PointerProperties>& properties,
                                                   int32_t actionButton = 0, int32_t flags = 0);
-    PointerCoords makePointerCoordsForSlot(const MultiTouchMotionAccumulator::Slot& slot) const;
+    PointerCoords makePointerCoordsForSlot(size_t slotNumber);
     int32_t allocatePointerIdToSlot(size_t slotNumber);
     void freePointerIdForSlot(size_t slotNumber);
 
@@ -76,8 +79,7 @@
 
     std::bitset<MAX_POINTER_ID + 1> mPointerIdsInUse;
     std::map<size_t, int32_t> mPointerIdForSlotNumber;
-
-    static constexpr uint32_t SOURCE = AINPUT_SOURCE_TOUCHPAD;
+    std::map<size_t, std::pair<float, float>> mPreviousCoordsForSlotNumber;
 };
 
 } // namespace android

diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index c44c48c..627df7f 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp

@@ -140,4 +140,7 @@
     dump += StringPrintf(INDENT4 "Tool Type: %s\n", ftl::enum_string(state.toolType).c_str());
 }
 
+std::optional<HardwareProperties> InputMapper::getTouchpadHardwareProperties() {
+    return std::nullopt;
+}
 } // namespace android

diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index e5afcc7..75cc4bb 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h

@@ -122,6 +122,8 @@
     virtual std::optional<ui::LogicalDisplayId> getAssociatedDisplayId() { return std::nullopt; }
     virtual void updateLedState(bool reset) {}
 
+    virtual std::optional<HardwareProperties> getTouchpadHardwareProperties();
+
 protected:
     InputDeviceContext& mDeviceContext;
 

diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index 5c5fd3f..dbc2872 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp

@@ -36,6 +36,7 @@
 #include <log/log_main.h>
 #include <stats_pull_atom_callback.h>
 #include <statslog.h>
+#include "InputReaderBase.h"
 #include "TouchCursorInputMapperCommon.h"
 #include "TouchpadInputMapper.h"
 #include "gestures/HardwareProperties.h"
@@ -251,7 +252,8 @@
     }
 
     mGestureInterpreter->Initialize(GESTURES_DEVCLASS_TOUCHPAD);
-    mGestureInterpreter->SetHardwareProperties(createHardwareProperties(deviceContext));
+    mHardwareProperties = createHardwareProperties(deviceContext);
+    mGestureInterpreter->SetHardwareProperties(mHardwareProperties);
     // Even though we don't explicitly delete copy/move semantics, it's safe to
     // give away pointers to TouchpadInputMapper and its members here because
     // 1) mGestureInterpreter's lifecycle is determined by TouchpadInputMapper, and
@@ -372,6 +374,7 @@
                 .setBoolValues({config.touchpadTapDraggingEnabled});
         mPropertyProvider.getProperty("Button Right Click Zone Enable")
                 .setBoolValues({config.touchpadRightClickZoneEnabled});
+        mTouchpadHardwareStateNotificationsEnabled = config.shouldNotifyTouchpadHardwareState;
     }
     std::list<NotifyArgs> out;
     if ((!changes.any() && config.pointerCaptureRequest.isEnable()) ||
@@ -421,6 +424,9 @@
     }
     std::optional<SelfContainedHardwareState> state = mStateConverter.processRawEvent(rawEvent);
     if (state) {
+        if (mTouchpadHardwareStateNotificationsEnabled) {
+            getPolicy()->notifyTouchpadHardwareState(*state, rawEvent.deviceId);
+        }
         updatePalmDetectionMetrics();
         return sendHardwareState(rawEvent.when, rawEvent.readTime, *state);
     } else {
@@ -493,4 +499,8 @@
     return mDisplayId;
 }
 
+std::optional<HardwareProperties> TouchpadInputMapper::getTouchpadHardwareProperties() {
+    return mHardwareProperties;
+}
+
 } // namespace android

diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.h b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
index 8baa63e..a2c4be9 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.h

@@ -68,6 +68,8 @@
 
     std::optional<ui::LogicalDisplayId> getAssociatedDisplayId() override;
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties() override;
+
 private:
     void resetGestureInterpreter(nsecs_t when);
     explicit TouchpadInputMapper(InputDeviceContext& deviceContext,
@@ -92,6 +94,7 @@
     HardwareStateConverter mStateConverter;
     GestureConverter mGestureConverter;
     CapturedTouchpadEventConverter mCapturedEventConverter;
+    HardwareProperties mHardwareProperties;
 
     bool mPointerCaptured = false;
     bool mResettingInterpreter = false;
@@ -112,6 +115,10 @@
     std::optional<ui::LogicalDisplayId> mDisplayId;
 
     nsecs_t mGestureStartTime{0};
+
+    // True if hardware state update notifications is available for usage based on its feature flag
+    // and settings value.
+    bool mTouchpadHardwareStateNotificationsEnabled = false;
 };
 
 } // namespace android

diff --git a/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h b/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h
index 66d62f8..148ca5a 100644
--- a/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h
+++ b/services/inputflinger/reader/mapper/gestures/HardwareStateConverter.h

@@ -28,6 +28,7 @@
 #include "accumulator/TouchButtonAccumulator.h"
 #include "include/TouchpadHardwareState.h"
 
+#include "TouchpadHardwareState.h"
 #include "include/gestures.h"
 
 namespace android {

diff --git a/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp b/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp
index b738abf..d39ad3f 100644
--- a/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp
+++ b/services/inputflinger/tests/CapturedTouchpadEventConverter_test.cpp

@@ -20,6 +20,7 @@
 #include <memory>
 
 #include <EventHub.h>
+#include <com_android_input_flags.h>
 #include <gtest/gtest.h>
 #include <linux/input-event-codes.h>
 #include <linux/input.h>
@@ -32,9 +33,14 @@
 #include "TestEventMatchers.h"
 #include "TestInputListener.h"
 
+namespace input_flags = com::android::input::flags;
+
 namespace android {
 
 using testing::AllOf;
+using testing::Each;
+using testing::ElementsAre;
+using testing::VariantWith;
 
 class CapturedTouchpadEventConverterTest : public testing::Test {
 public:
@@ -44,6 +50,8 @@
             mReader(mFakeEventHub, mFakePolicy, mFakeListener),
             mDevice(newDevice()),
             mDeviceContext(*mDevice, EVENTHUB_ID) {
+        input_flags::include_relative_axis_values_for_captured_touchpads(true);
+
         const size_t slotCount = 8;
         mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_SLOT, 0, slotCount - 1, 0, 0, 0);
         mAccumulator.configure(mDeviceContext, slotCount, /*usingSlotsProtocol=*/true);
@@ -123,7 +131,7 @@
 
 TEST_F(CapturedTouchpadEventConverterTest, MotionRanges_allAxesPresent_populatedCorrectly) {
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_X, 0, 4000, 0, 0, 45);
-    mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_Y, 0, 2500, 0, 0, 40);
+    mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_POSITION_Y, -500, 2000, 0, 0, 40);
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_TOUCH_MAJOR, 0, 1100, 0, 0, 35);
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_TOUCH_MINOR, 0, 1000, 0, 0, 30);
     mFakeEventHub->addAbsoluteAxis(EVENTHUB_ID, ABS_MT_WIDTH_MAJOR, 0, 900, 0, 0, 25);
@@ -147,8 +155,8 @@
     const InputDeviceInfo::MotionRange* posY =
             info.getMotionRange(AMOTION_EVENT_AXIS_Y, AINPUT_SOURCE_TOUCHPAD);
     ASSERT_NE(nullptr, posY);
-    EXPECT_NEAR(0, posY->min, EPSILON);
-    EXPECT_NEAR(2500, posY->max, EPSILON);
+    EXPECT_NEAR(-500, posY->min, EPSILON);
+    EXPECT_NEAR(2000, posY->max, EPSILON);
     EXPECT_NEAR(40, posY->resolution, EPSILON);
 
     const InputDeviceInfo::MotionRange* touchMajor =
@@ -179,8 +187,22 @@
     EXPECT_NEAR(800, toolMinor->max, EPSILON);
     EXPECT_NEAR(20, toolMinor->resolution, EPSILON);
 
-    // ...except orientation and pressure, which get scaled, and size, which is generated from other
-    // values.
+    // ...except for the relative motion axes, derived from the corresponding absolute ones:
+    const InputDeviceInfo::MotionRange* relX =
+            info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_X, AINPUT_SOURCE_TOUCHPAD);
+    ASSERT_NE(nullptr, relX);
+    EXPECT_NEAR(-4000, relX->min, EPSILON);
+    EXPECT_NEAR(4000, relX->max, EPSILON);
+    EXPECT_NEAR(45, relX->resolution, EPSILON);
+
+    const InputDeviceInfo::MotionRange* relY =
+            info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_Y, AINPUT_SOURCE_TOUCHPAD);
+    ASSERT_NE(nullptr, relY);
+    EXPECT_NEAR(-2500, relY->min, EPSILON);
+    EXPECT_NEAR(2500, relY->max, EPSILON);
+    EXPECT_NEAR(40, relY->resolution, EPSILON);
+
+    // ...orientation and pressure, which get scaled:
     const InputDeviceInfo::MotionRange* orientation =
             info.getMotionRange(AMOTION_EVENT_AXIS_ORIENTATION, AINPUT_SOURCE_TOUCHPAD);
     ASSERT_NE(nullptr, orientation);
@@ -195,6 +217,7 @@
     EXPECT_NEAR(1, pressure->max, EPSILON);
     EXPECT_NEAR(0, pressure->resolution, EPSILON);
 
+    // ... and size, which is generated from other values.
     const InputDeviceInfo::MotionRange* size =
             info.getMotionRange(AMOTION_EVENT_AXIS_SIZE, AINPUT_SOURCE_TOUCHPAD);
     ASSERT_NE(nullptr, size);
@@ -216,7 +239,9 @@
     // present, since it's generated from axes that aren't provided by this device).
     EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_X, AINPUT_SOURCE_TOUCHPAD));
     EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_Y, AINPUT_SOURCE_TOUCHPAD));
-    EXPECT_EQ(2u, info.getMotionRanges().size());
+    EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_X, AINPUT_SOURCE_TOUCHPAD));
+    EXPECT_NE(nullptr, info.getMotionRange(AMOTION_EVENT_AXIS_RELATIVE_Y, AINPUT_SOURCE_TOUCHPAD));
+    EXPECT_EQ(4u, info.getMotionRanges().size());
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, OneFinger_motionReportedCorrectly) {
@@ -232,28 +257,31 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithCoords(50, 100), WithToolType(ToolType::FINGER)));
+                      WithCoords(50, 100), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER)));
 
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 52);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 99);
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
+                      WithCoords(52, 99), WithRelativeMotion(2, -1),
+                      WithToolType(ToolType::FINGER)));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
 
     std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithCoords(52, 99), WithRelativeMotion(0, 0), WithPointerCount(1u),
+                              WithToolType(ToolType::FINGER)))));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, OneFinger_touchDimensionsPassedThrough) {
@@ -504,13 +532,13 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithCoords(51, 100)));
+                      WithCoords(51, 100), WithRelativeMotion(0, 0)));
 
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 52);
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 100)));
+                      WithCoords(52, 100), WithRelativeMotion(1, 0)));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, FingerArrivingAfterPalm_onlyFingerReported) {
@@ -550,7 +578,7 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(98, 148)));
+                      WithCoords(98, 148), WithRelativeMotion(-2, -2)));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, FingerAndFingerTurningIntoPalm_partiallyCancelled) {
@@ -572,17 +600,17 @@
     processAxis(conv, EV_KEY, BTN_TOUCH, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerToolType(0, ToolType::FINGER),
-                      WithPointerToolType(1, ToolType::FINGER)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithPointerCount(1u), WithToolType(ToolType::FINGER))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u),
+                                          WithPointerToolType(0, ToolType::FINGER),
+                                          WithPointerToolType(1, ToolType::FINGER)))));
 
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 51);
@@ -591,15 +619,16 @@
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 251);
     processAxis(conv, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_PALM);
 
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(2u)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithFlags(AMOTION_EVENT_FLAG_CANCELED), WithPointerCount(2u)));
+    std::list<NotifyArgs> args = processSync(conv);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithFlags(AMOTION_EVENT_FLAG_CANCELED)))));
+    EXPECT_THAT(args, Each(VariantWith<NotifyMotionArgs>(WithPointerCount(2u))));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, FingerAndPalmTurningIntoFinger_reported) {
@@ -632,15 +661,15 @@
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 251);
     processAxis(conv, EV_ABS, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerCount(1u))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u)))));
 }
 
 TEST_F(CapturedTouchpadEventConverterTest, TwoFingers_motionReportedCorrectly) {
@@ -656,7 +685,8 @@
 
     EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithCoords(50, 100), WithToolType(ToolType::FINGER)));
+                      WithCoords(50, 100), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER)));
 
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 52);
@@ -670,18 +700,22 @@
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(52, 99), WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerCoords(0, 52, 99),
-                      WithPointerCoords(1, 250, 200), WithPointerToolType(0, ToolType::FINGER),
-                      WithPointerToolType(1, ToolType::FINGER)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerCount(1u), WithCoords(52, 99),
+                                          WithRelativeMotion(2, -1),
+                                          WithToolType(ToolType::FINGER))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u), WithPointerCoords(0, 52, 99),
+                                          WithPointerRelativeMotion(0, 0, 0),
+                                          WithPointerCoords(1, 250, 200),
+                                          WithPointerRelativeMotion(1, 0, 0),
+                                          WithPointerToolType(0, ToolType::FINGER),
+                                          WithPointerToolType(1, ToolType::FINGER)))));
 
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
@@ -692,34 +726,96 @@
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 0);
 
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(2u),
-                      WithPointerCoords(0, 52, 99), WithPointerCoords(1, 255, 202),
-                      WithPointerToolType(1, ToolType::FINGER),
-                      WithPointerToolType(0, ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerCoords(0, 52, 99),
-                      WithPointerCoords(1, 255, 202), WithPointerToolType(0, ToolType::FINGER),
-                      WithPointerToolType(1, ToolType::FINGER)));
+    std::list<NotifyArgs> args = processSync(conv);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerRelativeMotion(1, 5, 2))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerRelativeMotion(1, 0, 0)))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(
+                        AllOf(WithPointerCount(2u), WithPointerCoords(0, 52, 99),
+                              WithPointerRelativeMotion(0, 0, 0), WithPointerCoords(1, 255, 202),
+                              WithPointerToolType(1, ToolType::FINGER),
+                              WithPointerToolType(0, ToolType::FINGER)))));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
 
     args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(AllOf(WithPointerCount(1u), WithCoords(255, 202),
+                                                         WithPointerRelativeMotion(1, 0, 0),
+                                                         WithToolType(ToolType::FINGER)))));
+}
+
+TEST_F(CapturedTouchpadEventConverterTest, RelativeMotionAxesClearedForNewFingerInSlot) {
+    CapturedTouchpadEventConverter conv = createConverter();
+    // Put down one finger.
+    processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
+    processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, 1);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 50);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 100);
+
+    processAxis(conv, EV_KEY, BTN_TOUCH, 1);
+    processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
+                      WithCoords(50, 100), WithRelativeMotion(0, 0)));
+
+    // Move it in negative X and Y directions.
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 47);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 97);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithCoords(47, 97),
+                      WithRelativeMotion(-3, -3)));
+
+    // Lift it.
+    processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
+    processAxis(conv, EV_KEY, BTN_TOUCH, 0);
+    processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
+
+    std::list<NotifyArgs> args = processSync(conv);
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
+    EXPECT_THAT(args,
+                Each(VariantWith<NotifyMotionArgs>(AllOf(WithCoords(47, 97),
+                                                         WithRelativeMotion(0, 0),
+                                                         WithPointerCount(1u)))));
+
+    // Put down another finger using the same slot. Relative axis values should be cleared.
+    processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, 2);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 60);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 60);
+
+    processAxis(conv, EV_KEY, BTN_TOUCH, 1);
+    processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
+                      WithCoords(60, 60), WithRelativeMotion(0, 0)));
+
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 64);
+    processAxis(conv, EV_ABS, ABS_MT_POSITION_Y, 58);
+
+    EXPECT_THAT(processSyncAndExpectSingleMotionArg(conv),
                 AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(1u),
-                      WithCoords(255, 202), WithToolType(ToolType::FINGER)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithPointerCount(1u),
-                      WithCoords(255, 202), WithToolType(ToolType::FINGER)));
+                      WithCoords(64, 58), WithRelativeMotion(4, -2)));
 }
 
 // Pointer IDs max out at 31, and so must be reused once a touch is lifted to avoid running out.
@@ -737,17 +833,18 @@
     processAxis(conv, EV_KEY, BTN_TOUCH, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithPointerCount(1u),
-                      WithPointerId(/*index=*/0, /*id=*/0)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerId(/*index=*/0, /*id=*/0),
-                      WithPointerId(/*index=*/1, /*id=*/1)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN),
+                                          WithPointerCount(1u),
+                                          WithPointerId(/*index=*/0, /*id=*/0))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerCount(2u),
+                                          WithPointerId(/*index=*/0, /*id=*/0),
+                                          WithPointerId(/*index=*/1, /*id=*/1)))));
 
     // Lift the finger in slot 0, freeing up pointer ID 0...
     processAxis(conv, EV_ABS, ABS_MT_SLOT, 0);
@@ -758,27 +855,30 @@
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, 3);
     processAxis(conv, EV_ABS, ABS_MT_POSITION_X, 30);
 
-    args = processSync(conv);
-    ASSERT_EQ(3u, args.size());
+    std::list<NotifyArgs> args = processSync(conv);
     // Slot 1 being present will result in a MOVE event, even though it hasn't actually moved (see
     // comments in CapturedTouchpadEventConverter::sync).
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE), WithPointerCount(2u),
-                      WithPointerId(/*index=*/0, /*id=*/0), WithPointerId(/*index=*/1, /*id=*/1)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_UP |
-                                       0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerId(/*index=*/0, /*id=*/0),
-                      WithPointerId(/*index=*/1, /*id=*/1)));
-    args.pop_front();
-    // Slot 0 being lifted causes the finger from slot 1 to move up to index 0, but keep its
-    // previous ID. The new finger in slot 2 should take ID 0, which was just freed up.
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_POINTER_DOWN |
-                                       1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
-                      WithPointerCount(2u), WithPointerId(/*index=*/0, /*id=*/1),
-                      WithPointerId(/*index=*/1, /*id=*/0)));
+    EXPECT_THAT(args,
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_MOVE),
+                                          WithPointerId(/*index=*/0, /*id=*/0),
+                                          WithPointerId(/*index=*/1, /*id=*/1))),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_UP |
+                                                  0 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerId(/*index=*/0, /*id=*/0),
+                                          WithPointerId(/*index=*/1, /*id=*/1))),
+                            // Slot 0 being lifted causes the finger from slot 1 to move up to index
+                            // 0, but keep its previous ID. The new finger in slot 2 should take ID
+                            // 0, which was just freed up.
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(
+                                                  AMOTION_EVENT_ACTION_POINTER_DOWN |
+                                                  1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+                                          WithPointerId(/*index=*/0, /*id=*/1),
+                                          WithPointerId(/*index=*/1, /*id=*/0)))));
+    EXPECT_THAT(args, Each(VariantWith<NotifyMotionArgs>(WithPointerCount(2u))));
 }
 
 // Motion events without any pointers are invalid, so when a button press is reported in the same
@@ -797,33 +897,30 @@
 
     processAxis(conv, EV_KEY, BTN_LEFT, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_DOWN)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)))));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
 
     processAxis(conv, EV_KEY, BTN_LEFT, 0);
-    args = processSync(conv);
-    ASSERT_EQ(3u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(0)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_UP));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0))),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
 }
 
 // Some touchpads sometimes report a button press before they report the finger touching the pad. In
@@ -841,15 +938,14 @@
     processAxis(conv, EV_KEY, BTN_TOUCH, 1);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_DOWN)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)))));
 }
 
 // When all fingers are lifted from a touchpad, we should release any buttons that are down, since
@@ -866,29 +962,25 @@
 
     processAxis(conv, EV_KEY, BTN_LEFT, 1);
 
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_DOWN)),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS))));
 
     processAxis(conv, EV_ABS, ABS_MT_TRACKING_ID, -1);
     processAxis(conv, EV_KEY, BTN_TOUCH, 0);
     processAxis(conv, EV_KEY, BTN_TOOL_FINGER, 0);
-    args = processSync(conv);
-    ASSERT_EQ(3u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE), WithPointerCount(1u),
-                      WithCoords(50, 100), WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(0)));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_UP));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithPointerCount(1u), WithCoords(50, 100),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(0))),
+                            VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_UP))));
 
     processAxis(conv, EV_KEY, BTN_LEFT, 0);
     ASSERT_EQ(0u, processSync(conv).size());
@@ -908,48 +1000,41 @@
                 WithMotionAction(AMOTION_EVENT_ACTION_DOWN));
 
     processAxis(conv, EV_KEY, BTN_LEFT, 1);
-    std::list<NotifyArgs> args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY)))));
 
     processAxis(conv, EV_KEY, BTN_RIGHT, 1);
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
-                                      AMOTION_EVENT_BUTTON_SECONDARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY |
+                                                          AMOTION_EVENT_BUTTON_SECONDARY)))));
 
     processAxis(conv, EV_KEY, BTN_LEFT, 0);
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
-                      WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                                          WithButtonState(AMOTION_EVENT_BUTTON_SECONDARY)))));
 
     processAxis(conv, EV_KEY, BTN_RIGHT, 0);
-    args = processSync(conv);
-    ASSERT_EQ(2u, args.size());
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                WithMotionAction(AMOTION_EVENT_ACTION_MOVE));
-    args.pop_front();
-    EXPECT_THAT(std::get<NotifyMotionArgs>(args.front()),
-                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
-                      WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY), WithButtonState(0)));
+    EXPECT_THAT(processSync(conv),
+                ElementsAre(VariantWith<NotifyMotionArgs>(
+                                    WithMotionAction(AMOTION_EVENT_ACTION_MOVE)),
+                            VariantWith<NotifyMotionArgs>(
+                                    AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                                          WithActionButton(AMOTION_EVENT_BUTTON_SECONDARY),
+                                          WithButtonState(0)))));
 }
 
 } // namespace android

diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.cpp b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
index 6099c91..d77d539 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.cpp
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.cpp

@@ -65,6 +65,17 @@
     ASSERT_FALSE(mDeviceIdOfNotifiedStylusGesture);
 }
 
+void FakeInputReaderPolicy::assertTouchpadHardwareStateNotified() {
+    std::unique_lock lock(mLock);
+    base::ScopedLockAssertion assumeLocked(mLock);
+
+    const bool success =
+            mTouchpadHardwareStateNotified.wait_for(lock, WAIT_TIMEOUT, [this]() REQUIRES(mLock) {
+                return mTouchpadHardwareState.has_value();
+            });
+    ASSERT_TRUE(success) << "Timed out waiting for hardware state to be notified";
+}
+
 void FakeInputReaderPolicy::clearViewports() {
     mViewports.clear();
     mConfig.setDisplayViewports(mViewports);
@@ -234,6 +245,13 @@
     mDevicesChangedCondition.notify_all();
 }
 
+void FakeInputReaderPolicy::notifyTouchpadHardwareState(const SelfContainedHardwareState& schs,
+                                                        int32_t deviceId) {
+    std::scoped_lock lock(mLock);
+    mTouchpadHardwareState = schs;
+    mTouchpadHardwareStateNotified.notify_all();
+}
+
 std::shared_ptr<KeyCharacterMap> FakeInputReaderPolicy::getKeyboardLayoutOverlay(
         const InputDeviceIdentifier&, const std::optional<KeyboardLayoutInfo>) {
     return nullptr;

diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.h b/services/inputflinger/tests/FakeInputReaderPolicy.h
index 94f1311..e5ba620 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.h
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.h

@@ -42,6 +42,7 @@
     void assertInputDevicesNotChanged();
     void assertStylusGestureNotified(int32_t deviceId);
     void assertStylusGestureNotNotified();
+    void assertTouchpadHardwareStateNotified();
 
     virtual void clearViewports();
     std::optional<DisplayViewport> getDisplayViewportByUniqueId(const std::string& uniqueId) const;
@@ -82,6 +83,8 @@
 private:
     void getReaderConfiguration(InputReaderConfiguration* outConfig) override;
     void notifyInputDevicesChanged(const std::vector<InputDeviceInfo>& inputDevices) override;
+    void notifyTouchpadHardwareState(const SelfContainedHardwareState& schs,
+                                     int32_t deviceId) override;
     std::shared_ptr<KeyCharacterMap> getKeyboardLayoutOverlay(
             const InputDeviceIdentifier&, const std::optional<KeyboardLayoutInfo>) override;
     std::string getDeviceAlias(const InputDeviceIdentifier&) override;
@@ -101,6 +104,9 @@
     std::condition_variable mStylusGestureNotifiedCondition;
     std::optional<DeviceId> mDeviceIdOfNotifiedStylusGesture GUARDED_BY(mLock){};
 
+    std::condition_variable mTouchpadHardwareStateNotified;
+    std::optional<SelfContainedHardwareState> mTouchpadHardwareState GUARDED_BY(mLock){};
+
     uint32_t mNextPointerCaptureSequenceNumber{0};
 };
 

diff --git a/services/inputflinger/tests/LatencyTracker_test.cpp b/services/inputflinger/tests/LatencyTracker_test.cpp
index 4fcffdd..5650286 100644
--- a/services/inputflinger/tests/LatencyTracker_test.cpp
+++ b/services/inputflinger/tests/LatencyTracker_test.cpp

@@ -61,12 +61,13 @@
 
 InputEventTimeline getTestTimeline() {
     InputEventTimeline t(
-            /*isDown=*/true,
+            /*isDown=*/false,
             /*eventTime=*/2,
             /*readTime=*/3,
             /*vendorId=*/0,
             /*productId=*/0,
-            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     ConnectionTimeline expectedCT(/*deliveryTime=*/6, /*consumeTime=*/7, /*finishTime=*/8);
     std::array<nsecs_t, GraphicsTimeline::SIZE> graphicsTimeline;
     graphicsTimeline[GraphicsTimeline::GPU_COMPLETED_TIME] = 9;
@@ -116,9 +117,10 @@
 void LatencyTrackerTest::triggerEventReporting(nsecs_t lastEventTime) {
     const nsecs_t triggerEventTime =
             lastEventTime + std::chrono::nanoseconds(ANR_TIMEOUT).count() + 1;
-    mTracker->trackListener(/*inputEventId=*/1, /*isDown=*/true, triggerEventTime,
+    mTracker->trackListener(/*inputEventId=*/1, triggerEventTime,
                             /*readTime=*/3, DEVICE_ID,
-                            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+                            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+                            AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
 }
 
 void LatencyTrackerTest::assertReceivedTimeline(const InputEventTimeline& timeline) {
@@ -167,12 +169,15 @@
  * any additional ConnectionTimeline's.
  */
 TEST_F(LatencyTrackerTest, TrackListener_DoesNotTriggerReporting) {
-    mTracker->trackListener(/*inputEventId=*/1, /*isDown=*/false, /*eventTime=*/2,
-                            /*readTime=*/3, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(/*inputEventId=*/1, /*eventTime=*/2,
+                            /*readTime=*/3, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN},
+                            AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
     triggerEventReporting(/*eventTime=*/2);
-    assertReceivedTimeline(InputEventTimeline{/*isDown=*/false, /*eventTime=*/2,
-                                              /*readTime=*/3, /*vendorId=*/0, /*productID=*/0,
-                                              /*sources=*/{InputDeviceUsageSource::UNKNOWN}});
+    assertReceivedTimeline(
+            InputEventTimeline{/*isDown=*/false, /*eventTime=*/2,
+                               /*readTime=*/3, /*vendorId=*/0, /*productID=*/0,
+                               /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+                               /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT});
 }
 
 /**
@@ -203,8 +208,9 @@
 
     const auto& [connectionToken, expectedCT] = *expected.connectionTimelines.begin();
 
-    mTracker->trackListener(inputEventId, expected.isDown, expected.eventTime, expected.readTime,
-                            DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId, expected.eventTime, expected.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     mTracker->trackFinishedEvent(inputEventId, connectionToken, expectedCT.deliveryTime,
                                  expectedCT.consumeTime, expectedCT.finishTime);
     mTracker->trackGraphicsLatency(inputEventId, connectionToken, expectedCT.graphicsTimeline);
@@ -220,14 +226,16 @@
 TEST_F(LatencyTrackerTest, WhenDuplicateEventsAreReported_DoesNotCrash) {
     constexpr nsecs_t inputEventId = 1;
     constexpr nsecs_t readTime = 3; // does not matter for this test
-    constexpr bool isDown = true;   // does not matter for this test
+    constexpr bool isDown = false;  // does not matter for this test
 
     // In the following 2 calls to trackListener, the inputEventId's are the same, but event times
     // are different.
-    mTracker->trackListener(inputEventId, isDown, /*eventTime=*/1, readTime, DEVICE_ID,
-                            {InputDeviceUsageSource::UNKNOWN});
-    mTracker->trackListener(inputEventId, isDown, /*eventTime=*/2, readTime, DEVICE_ID,
-                            {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId, /*eventTime=*/1, readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
+    mTracker->trackListener(inputEventId, /*eventTime=*/2, readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
 
     triggerEventReporting(/*eventTime=*/2);
     // Since we sent duplicate input events, the tracker should just delete all of them, because it
@@ -238,12 +246,13 @@
 TEST_F(LatencyTrackerTest, MultipleEvents_AreReportedConsistently) {
     constexpr int32_t inputEventId1 = 1;
     InputEventTimeline timeline1(
-            /*isDown*/ true,
+            /*isDown*/ false,
             /*eventTime*/ 2,
             /*readTime*/ 3,
             /*vendorId=*/0,
             /*productId=*/0,
-            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+            /*inputEventType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     timeline1.connectionTimelines.emplace(connection1,
                                           ConnectionTimeline(/*deliveryTime*/ 6, /*consumeTime*/ 7,
                                                              /*finishTime*/ 8));
@@ -260,7 +269,8 @@
             /*readTime=*/30,
             /*vendorId=*/0,
             /*productId=*/0,
-            /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+            /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     timeline2.connectionTimelines.emplace(connection2,
                                           ConnectionTimeline(/*deliveryTime=*/60,
                                                              /*consumeTime=*/70,
@@ -272,11 +282,13 @@
     connectionTimeline2.setGraphicsTimeline(std::move(graphicsTimeline2));
 
     // Start processing first event
-    mTracker->trackListener(inputEventId1, timeline1.isDown, timeline1.eventTime,
-                            timeline1.readTime, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId1, timeline1.eventTime, timeline1.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     // Start processing second event
-    mTracker->trackListener(inputEventId2, timeline2.isDown, timeline2.eventTime,
-                            timeline2.readTime, DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId2, timeline2.eventTime, timeline2.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     mTracker->trackFinishedEvent(inputEventId1, connection1, connectionTimeline1.deliveryTime,
                                  connectionTimeline1.consumeTime, connectionTimeline1.finishTime);
 
@@ -301,12 +313,14 @@
     const sp<IBinder>& token = timeline.connectionTimelines.begin()->first;
 
     for (size_t i = 1; i <= 100; i++) {
-        mTracker->trackListener(/*inputEventId=*/i, timeline.isDown, timeline.eventTime,
-                                timeline.readTime, /*deviceId=*/DEVICE_ID,
-                                /*sources=*/{InputDeviceUsageSource::UNKNOWN});
+        mTracker->trackListener(/*inputEventId=*/i, timeline.eventTime, timeline.readTime,
+                                /*deviceId=*/DEVICE_ID,
+                                /*sources=*/{InputDeviceUsageSource::UNKNOWN},
+                                AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
         expectedTimelines.push_back(InputEventTimeline{timeline.isDown, timeline.eventTime,
                                                        timeline.readTime, timeline.vendorId,
-                                                       timeline.productId, timeline.sources});
+                                                       timeline.productId, timeline.sources,
+                                                       timeline.inputEventActionType});
     }
     // Now, complete the first event that was sent.
     mTracker->trackFinishedEvent(/*inputEventId=*/1, token, expectedCT.deliveryTime,
@@ -332,12 +346,14 @@
                                  expectedCT.consumeTime, expectedCT.finishTime);
     mTracker->trackGraphicsLatency(inputEventId, connection1, expectedCT.graphicsTimeline);
 
-    mTracker->trackListener(inputEventId, expected.isDown, expected.eventTime, expected.readTime,
-                            DEVICE_ID, {InputDeviceUsageSource::UNKNOWN});
+    mTracker->trackListener(inputEventId, expected.eventTime, expected.readTime, DEVICE_ID,
+                            {InputDeviceUsageSource::UNKNOWN}, AMOTION_EVENT_ACTION_CANCEL,
+                            InputEventType::MOTION);
     triggerEventReporting(expected.eventTime);
     assertReceivedTimeline(InputEventTimeline{expected.isDown, expected.eventTime,
                                               expected.readTime, expected.vendorId,
-                                              expected.productId, expected.sources});
+                                              expected.productId, expected.sources,
+                                              expected.inputEventActionType});
 }
 
 /**
@@ -348,22 +364,92 @@
 TEST_F(LatencyTrackerTest, TrackListenerCheck_DeviceInfoFieldsInputEventTimeline) {
     constexpr int32_t inputEventId = 1;
     InputEventTimeline timeline(
-            /*isDown*/ true, /*eventTime*/ 2, /*readTime*/ 3,
+            /*isDown*/ false, /*eventTime*/ 2, /*readTime*/ 3,
             /*vendorId=*/50, /*productId=*/60,
             /*sources=*/
-            {InputDeviceUsageSource::TOUCHSCREEN, InputDeviceUsageSource::STYLUS_DIRECT});
+            {InputDeviceUsageSource::TOUCHSCREEN, InputDeviceUsageSource::STYLUS_DIRECT},
+            /*inputEventActionType=*/InputEventActionType::UNKNOWN_INPUT_EVENT);
     InputDeviceInfo deviceInfo1 = generateTestDeviceInfo(
             /*vendorId=*/5, /*productId=*/6, /*deviceId=*/DEVICE_ID + 1);
     InputDeviceInfo deviceInfo2 = generateTestDeviceInfo(
             /*vendorId=*/50, /*productId=*/60, /*deviceId=*/DEVICE_ID);
 
     mTracker->setInputDevices({deviceInfo1, deviceInfo2});
-    mTracker->trackListener(inputEventId, timeline.isDown, timeline.eventTime, timeline.readTime,
-                            DEVICE_ID,
+    mTracker->trackListener(inputEventId, timeline.eventTime, timeline.readTime, DEVICE_ID,
                             {InputDeviceUsageSource::TOUCHSCREEN,
-                             InputDeviceUsageSource::STYLUS_DIRECT});
+                             InputDeviceUsageSource::STYLUS_DIRECT},
+                            AMOTION_EVENT_ACTION_CANCEL, InputEventType::MOTION);
     triggerEventReporting(timeline.eventTime);
     assertReceivedTimeline(timeline);
 }
 
+/**
+ * Check that InputEventActionType is correctly assigned to InputEventTimeline in trackListener.
+ */
+TEST_F(LatencyTrackerTest, TrackListenerCheck_InputEventActionTypeFieldInputEventTimeline) {
+    constexpr int32_t inputEventId = 1;
+    // Create timelines for different event types (Motion, Key)
+    InputEventTimeline motionDownTimeline(
+            /*isDown*/ true, /*eventTime*/ 2, /*readTime*/ 3,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::MOTION_ACTION_DOWN);
+
+    InputEventTimeline motionMoveTimeline(
+            /*isDown*/ false, /*eventTime*/ 4, /*readTime*/ 5,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::MOTION_ACTION_MOVE);
+
+    InputEventTimeline motionUpTimeline(
+            /*isDown*/ false, /*eventTime*/ 6, /*readTime*/ 7,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::MOTION_ACTION_UP);
+
+    InputEventTimeline keyDownTimeline(
+            /*isDown*/ false, /*eventTime*/ 8, /*readTime*/ 9,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::KEY);
+
+    InputEventTimeline keyUpTimeline(
+            /*isDown*/ false, /*eventTime*/ 10, /*readTime*/ 11,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::KEY);
+
+    InputEventTimeline unknownTimeline(
+            /*isDown*/ false, /*eventTime*/ 12, /*readTime*/ 13,
+            /*vendorId*/ 0, /*productId*/ 0,
+            /*sources*/ {InputDeviceUsageSource::UNKNOWN},
+            /*inputEventActionType*/ InputEventActionType::UNKNOWN_INPUT_EVENT);
+
+    mTracker->trackListener(inputEventId, motionDownTimeline.eventTime, motionDownTimeline.readTime,
+                            DEVICE_ID, motionDownTimeline.sources, AMOTION_EVENT_ACTION_DOWN,
+                            InputEventType::MOTION);
+    mTracker->trackListener(inputEventId + 1, motionMoveTimeline.eventTime,
+                            motionMoveTimeline.readTime, DEVICE_ID, motionMoveTimeline.sources,
+                            AMOTION_EVENT_ACTION_MOVE, InputEventType::MOTION);
+    mTracker->trackListener(inputEventId + 2, motionUpTimeline.eventTime, motionUpTimeline.readTime,
+                            DEVICE_ID, motionUpTimeline.sources, AMOTION_EVENT_ACTION_UP,
+                            InputEventType::MOTION);
+    mTracker->trackListener(inputEventId + 3, keyDownTimeline.eventTime, keyDownTimeline.readTime,
+                            DEVICE_ID, keyDownTimeline.sources, AKEY_EVENT_ACTION_DOWN,
+                            InputEventType::KEY);
+    mTracker->trackListener(inputEventId + 4, keyUpTimeline.eventTime, keyUpTimeline.readTime,
+                            DEVICE_ID, keyUpTimeline.sources, AKEY_EVENT_ACTION_UP,
+                            InputEventType::KEY);
+    mTracker->trackListener(inputEventId + 5, unknownTimeline.eventTime, unknownTimeline.readTime,
+                            DEVICE_ID, unknownTimeline.sources, AMOTION_EVENT_ACTION_POINTER_DOWN,
+                            InputEventType::MOTION);
+
+    triggerEventReporting(unknownTimeline.eventTime);
+
+    std::vector<InputEventTimeline> expectedTimelines = {motionDownTimeline, motionMoveTimeline,
+                                                         motionUpTimeline,   keyDownTimeline,
+                                                         keyUpTimeline,      unknownTimeline};
+    assertReceivedTimelines(expectedTimelines);
+}
+
 } // namespace android::inputdispatcher

diff --git a/services/inputflinger/tests/TestEventMatchers.h b/services/inputflinger/tests/TestEventMatchers.h
index cfedc6e..f3be041 100644
--- a/services/inputflinger/tests/TestEventMatchers.h
+++ b/services/inputflinger/tests/TestEventMatchers.h

@@ -654,6 +654,15 @@
     return argX == x && argY == y;
 }
 
+MATCHER_P3(WithPointerRelativeMotion, pointer, x, y,
+           "InputEvent with specified relative motion for pointer") {
+    const auto argX = arg.pointerCoords[pointer].getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_X);
+    const auto argY = arg.pointerCoords[pointer].getAxisValue(AMOTION_EVENT_AXIS_RELATIVE_Y);
+    *result_listener << "expected pointer " << pointer << " to have relative motion (" << x << ", "
+                     << y << "), but got (" << argX << ", " << argY << ")";
+    return argX == x && argY == y;
+}
+
 MATCHER_P3(WithGestureOffset, dx, dy, epsilon,
            "InputEvent with specified touchpad gesture offset") {
     const auto argGestureX = arg.pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_GESTURE_X_OFFSET);

diff --git a/services/inputflinger/tests/TouchpadInputMapper_test.cpp b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
index fc8a7da..ea69fff 100644
--- a/services/inputflinger/tests/TouchpadInputMapper_test.cpp
+++ b/services/inputflinger/tests/TouchpadInputMapper_test.cpp

@@ -172,4 +172,22 @@
     ASSERT_THAT(args, testing::IsEmpty());
 }
 
+TEST_F(TouchpadInputMapperTest, TouchpadHardwareState) {
+    mReaderConfiguration.shouldNotifyTouchpadHardwareState = true;
+    std::list<NotifyArgs> args =
+            mMapper->reconfigure(ARBITRARY_TIME, mReaderConfiguration,
+                                 InputReaderConfiguration::Change::TOUCHPAD_SETTINGS);
+
+    args += process(EV_ABS, ABS_MT_TRACKING_ID, 1);
+    args += process(EV_KEY, BTN_TOUCH, 1);
+    setScanCodeState(KeyState::DOWN, {BTN_TOOL_FINGER});
+    args += process(EV_KEY, BTN_TOOL_FINGER, 1);
+    args += process(EV_ABS, ABS_MT_POSITION_X, 50);
+    args += process(EV_ABS, ABS_MT_POSITION_Y, 50);
+    args += process(EV_ABS, ABS_MT_PRESSURE, 1);
+    args += process(EV_SYN, SYN_REPORT, 0);
+
+    mFakePolicy->assertTouchpadHardwareStateNotified();
+}
+
 } // namespace android

diff --git a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
index d552c19..3e4a19b 100644
--- a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp

@@ -117,6 +117,10 @@
         return reader->getSensors(deviceId);
     }
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties(int32_t deviceId) {
+        return reader->getTouchpadHardwareProperties(deviceId);
+    }
+
     bool canDispatchToDisplay(int32_t deviceId, ui::LogicalDisplayId displayId) {
         return reader->canDispatchToDisplay(deviceId, displayId);
     }

diff --git a/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp b/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp
index 6daeaaf..80c2213 100644
--- a/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/LatencyTrackerFuzzer.cpp

@@ -18,6 +18,7 @@
 #include <linux/input.h>
 
 #include "../../InputDeviceMetricsSource.h"
+#include "../InputEventTimeline.h"
 #include "dispatcher/LatencyTracker.h"
 
 namespace android {
@@ -65,14 +66,15 @@
         fdp.PickValueInArray<std::function<void()>>({
                 [&]() -> void {
                     int32_t inputEventId = fdp.ConsumeIntegral<int32_t>();
-                    int32_t isDown = fdp.ConsumeBool();
                     nsecs_t eventTime = fdp.ConsumeIntegral<nsecs_t>();
                     nsecs_t readTime = fdp.ConsumeIntegral<nsecs_t>();
                     const DeviceId deviceId = fdp.ConsumeIntegral<int32_t>();
                     std::set<InputDeviceUsageSource> sources = {
                             fdp.ConsumeEnum<InputDeviceUsageSource>()};
-                    tracker.trackListener(inputEventId, isDown, eventTime, readTime, deviceId,
-                                          sources);
+                    int32_t inputEventActionType = fdp.ConsumeIntegral<int32_t>();
+                    const InputEventType inputEventType = fdp.ConsumeEnum<InputEventType>();
+                    tracker.trackListener(inputEventId, eventTime, readTime, deviceId, sources,
+                                          inputEventActionType, inputEventType);
                 },
                 [&]() -> void {
                     int32_t inputEventId = fdp.ConsumeIntegral<int32_t>();

diff --git a/services/inputflinger/tests/fuzzers/MapperHelpers.h b/services/inputflinger/tests/fuzzers/MapperHelpers.h
index fea0d9a..ddc3310 100644
--- a/services/inputflinger/tests/fuzzers/MapperHelpers.h
+++ b/services/inputflinger/tests/fuzzers/MapperHelpers.h

@@ -281,6 +281,8 @@
     FuzzInputReaderPolicy(std::shared_ptr<ThreadSafeFuzzedDataProvider> mFdp) : mFdp(mFdp) {}
     void getReaderConfiguration(InputReaderConfiguration* outConfig) override {}
     void notifyInputDevicesChanged(const std::vector<InputDeviceInfo>& inputDevices) override {}
+    void notifyTouchpadHardwareState(const SelfContainedHardwareState& schs,
+                                     int32_t deviceId) override {}
     std::shared_ptr<KeyCharacterMap> getKeyboardLayoutOverlay(
             const InputDeviceIdentifier& identifier,
             const std::optional<KeyboardLayoutInfo> layoutInfo) override {

diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index 130c112..f56642b 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp

@@ -172,7 +172,7 @@
 
 bool SensorService::SensorEventConnection::removeSensor(int32_t handle) {
     Mutex::Autolock _l(mConnectionLock);
-    if (mSensorInfo.erase(handle) >= 0) {
+    if (mSensorInfo.erase(handle) > 0) {
         return true;
     }
     return false;

diff --git a/services/surfaceflinger/Client.cpp b/services/surfaceflinger/Client.cpp
index 6b4215e..abeb2a9 100644
--- a/services/surfaceflinger/Client.cpp
+++ b/services/surfaceflinger/Client.cpp

@@ -21,7 +21,7 @@
 
 #include <private/android_filesystem_config.h>
 
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/SchedulingPolicy.h>
 
 #include "Client.h"

diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
index b0b1a02..eb6e677 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h

@@ -33,6 +33,7 @@
 #include "DisplayHardware/HWC2.h"
 
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
+#include <aidl/android/hardware/graphics/composer3/Lut.h>
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion -Wextra"
@@ -77,6 +78,7 @@
                  Error(const std::string&, bool, const std::vector<uint8_t>&));
     MOCK_METHOD1(setBrightness, Error(float));
     MOCK_METHOD1(setBlockingRegion, Error(const android::Region&));
+    MOCK_METHOD(Error, setLuts, (std::vector<aidl::android::hardware::graphics::composer3::Lut>&));
 };
 
 } // namespace mock

diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
index 629d9f2..839fb7d 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h

@@ -151,6 +151,10 @@
                 getOverlaySupport, (), (const, override));
     MOCK_METHOD(status_t, setRefreshRateChangedCallbackDebugEnabled, (PhysicalDisplayId, bool));
     MOCK_METHOD(status_t, notifyExpectedPresent, (PhysicalDisplayId, TimePoint, Fps));
+    MOCK_METHOD(status_t, getRequestedLuts,
+                (PhysicalDisplayId,
+                 std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*),
+                (override));
 };
 
 } // namespace mock

diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index d50a0bc..20ae74a 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp

@@ -44,6 +44,7 @@
 using aidl::android::hardware::graphics::composer3::BnComposerCallback;
 using aidl::android::hardware::graphics::composer3::Capability;
 using aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness;
+using aidl::android::hardware::graphics::composer3::Lut;
 using aidl::android::hardware::graphics::composer3::PowerMode;
 using aidl::android::hardware::graphics::composer3::VirtualDisplay;
 
@@ -1539,6 +1540,30 @@
     return error;
 }
 
+Error AidlComposer::getRequestedLuts(Display display, std::vector<DisplayLuts::LayerLut>* outLuts) {
+    Error error = Error::NONE;
+    mMutex.lock_shared();
+    if (auto reader = getReader(display)) {
+        *outLuts = reader->get().takeDisplayLuts(translate<int64_t>(display));
+    } else {
+        error = Error::BAD_DISPLAY;
+    }
+    mMutex.unlock_shared();
+    return error;
+}
+
+Error AidlComposer::setLayerLuts(Display display, Layer layer, std::vector<Lut>& luts) {
+    Error error = Error::NONE;
+    mMutex.lock_shared();
+    if (auto writer = getWriter(display)) {
+        writer->get().setLayerLuts(translate<int64_t>(display), translate<int64_t>(layer), luts);
+    } else {
+        error = Error::BAD_DISPLAY;
+    }
+    mMutex.unlock_shared();
+    return error;
+}
+
 Error AidlComposer::setLayerBrightness(Display display, Layer layer, float brightness) {
     Error error = Error::NONE;
     mMutex.lock_shared();

diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
index ea0e53a..246223a 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h

@@ -244,6 +244,13 @@
     Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) override;
     Error notifyExpectedPresent(Display, nsecs_t expectedPresentTime,
                                 int32_t frameIntervalNs) override;
+    Error getRequestedLuts(
+            Display display,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*
+                    outLuts) override;
+    Error setLayerLuts(
+            Display display, Layer layer,
+            std::vector<aidl::android::hardware::graphics::composer3::Lut>& luts) override;
 
 private:
     // Many public functions above simply write a command into the command

diff --git a/services/surfaceflinger/DisplayHardware/ComposerHal.h b/services/surfaceflinger/DisplayHardware/ComposerHal.h
index bc067a0..7db9a94 100644
--- a/services/surfaceflinger/DisplayHardware/ComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/ComposerHal.h

@@ -40,7 +40,9 @@
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayConfiguration.h>
+#include <aidl/android/hardware/graphics/composer3/DisplayLuts.h>
 #include <aidl/android/hardware/graphics/composer3/IComposerCallback.h>
+#include <aidl/android/hardware/graphics/composer3/Lut.h>
 #include <aidl/android/hardware/graphics/composer3/OverlayProperties.h>
 
 #include <aidl/android/hardware/graphics/common/Transform.h>
@@ -303,6 +305,9 @@
     virtual Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) = 0;
     virtual Error notifyExpectedPresent(Display, nsecs_t expectedPresentTime,
                                         int32_t frameIntervalNs) = 0;
+    virtual Error getRequestedLuts(Display display,
+                                   std::vector<V3_0::DisplayLuts::LayerLut>* outLuts) = 0;
+    virtual Error setLayerLuts(Display display, Layer layer, std::vector<V3_0::Lut>& luts) = 0;
 };
 
 } // namespace Hwc2

diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
index c77cdd4..748765a 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp

@@ -31,10 +31,11 @@
 #include <utils/String8.h>
 #include <log/log.h>
 
-#include <hardware/hardware.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferQueue.h>
 #include <gui/Surface.h>
+#include <hardware/hardware.h>
 
 #include <ui/DebugUtils.h>
 #include <ui/GraphicBuffer.h>
@@ -48,10 +49,18 @@
 
 using ui::Dataspace;
 
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+FramebufferSurface::FramebufferSurface(HWComposer& hwc, PhysicalDisplayId displayId,
+                                       const sp<IGraphicBufferProducer>& producer,
+                                       const sp<IGraphicBufferConsumer>& consumer,
+                                       const ui::Size& size, const ui::Size& maxSize)
+      : ConsumerBase(producer, consumer),
+#else
 FramebufferSurface::FramebufferSurface(HWComposer& hwc, PhysicalDisplayId displayId,
                                        const sp<IGraphicBufferConsumer>& consumer,
                                        const ui::Size& size, const ui::Size& maxSize)
       : ConsumerBase(consumer),
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
         mDisplayId(displayId),
         mMaxSize(maxSize),
         mCurrentBufferSlot(-1),

diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
index 2728cf6..6ca64a2 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h

@@ -20,6 +20,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <com_android_graphics_libgui_flags.h>
 #include <compositionengine/DisplaySurface.h>
 #include <gui/BufferQueue.h>
 #include <gui/ConsumerBase.h>
@@ -40,9 +41,16 @@
 
 class FramebufferSurface : public ConsumerBase, public compositionengine::DisplaySurface {
 public:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+    FramebufferSurface(HWComposer& hwc, PhysicalDisplayId displayId,
+                       const sp<IGraphicBufferProducer>& producer,
+                       const sp<IGraphicBufferConsumer>& consumer, const ui::Size& size,
+                       const ui::Size& maxSize);
+#else
     FramebufferSurface(HWComposer& hwc, PhysicalDisplayId displayId,
                        const sp<IGraphicBufferConsumer>& consumer, const ui::Size& size,
                        const ui::Size& maxSize);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
     virtual status_t beginFrame(bool mustRecompose);
     virtual status_t prepareFrame(CompositionType compositionType);

diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index 8c0f81e..8e78af4 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp

@@ -41,6 +41,8 @@
 using aidl::android::hardware::graphics::composer3::Composition;
 using AidlCapability = aidl::android::hardware::graphics::composer3::Capability;
 using aidl::android::hardware::graphics::composer3::DisplayCapability;
+using aidl::android::hardware::graphics::composer3::DisplayLuts;
+using aidl::android::hardware::graphics::composer3::Lut;
 using aidl::android::hardware::graphics::composer3::OverlayProperties;
 
 namespace android {
@@ -607,6 +609,19 @@
     return static_cast<Error>(error);
 }
 
+Error Display::getRequestedLuts(std::vector<DisplayLuts::LayerLut>* outLayerLuts) {
+    std::vector<DisplayLuts::LayerLut> tmpLayerLuts;
+    const auto error = mComposer.getRequestedLuts(mId, &tmpLayerLuts);
+    for (DisplayLuts::LayerLut& layerLut : tmpLayerLuts) {
+        if (layerLut.lut.pfd.get() >= 0) {
+            outLayerLuts->push_back({layerLut.layer,
+                                     Lut{ndk::ScopedFileDescriptor(layerLut.lut.pfd.release()),
+                                         layerLut.lut.lutProperties}});
+        }
+    }
+    return static_cast<Error>(error);
+}
+
 Error Display::getDisplayDecorationSupport(
         std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>*
                 support) {
@@ -1037,6 +1052,14 @@
     return static_cast<Error>(intError);
 }
 
+Error Layer::setLuts(std::vector<Lut>& luts) {
+    if (CC_UNLIKELY(!mDisplay)) {
+        return Error::BAD_DISPLAY;
+    }
+    const auto intError = mComposer.setLayerLuts(mDisplay->getId(), mId, luts);
+    return static_cast<Error>(intError);
+}
+
 } // namespace impl
 } // namespace HWC2
 } // namespace android

diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index 5b94831..c2dc943 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h

@@ -45,6 +45,7 @@
 #include <aidl/android/hardware/graphics/composer3/Color.h>
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
+#include <aidl/android/hardware/graphics/composer3/Lut.h>
 #include <aidl/android/hardware/graphics/composer3/OverlayProperties.h>
 #include <aidl/android/hardware/graphics/composer3/RefreshRateChangedDebugData.h>
 
@@ -178,6 +179,9 @@
     [[nodiscard]] virtual hal::Error getClientTargetProperty(
             aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness*
                     outClientTargetProperty) = 0;
+    [[nodiscard]] virtual hal::Error getRequestedLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*
+                    outLuts) = 0;
     [[nodiscard]] virtual hal::Error getDisplayDecorationSupport(
             std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>*
                     support) = 0;
@@ -261,6 +265,9 @@
     hal::Error getClientTargetProperty(
             aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness*
                     outClientTargetProperty) override;
+    hal::Error getRequestedLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*
+                    outLuts) override;
     hal::Error getDisplayDecorationSupport(
             std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>*
                     support) override;
@@ -354,6 +361,8 @@
     // AIDL HAL
     [[nodiscard]] virtual hal::Error setBrightness(float brightness) = 0;
     [[nodiscard]] virtual hal::Error setBlockingRegion(const android::Region& region) = 0;
+    [[nodiscard]] virtual hal::Error setLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::Lut>& luts) = 0;
 };
 
 namespace impl {
@@ -404,6 +413,8 @@
     // AIDL HAL
     hal::Error setBrightness(float brightness) override;
     hal::Error setBlockingRegion(const android::Region& region) override;
+    hal::Error setLuts(
+            std::vector<aidl::android::hardware::graphics::composer3::Lut>& luts) override;
 
 private:
     // These are references to data owned by HWComposer, which will outlive

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 73fa855..c83e0da 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp

@@ -533,6 +533,7 @@
 
     DeviceRequestedChanges::ClientTargetProperty clientTargetProperty;
     error = hwcDisplay->getClientTargetProperty(&clientTargetProperty);
+    RETURN_IF_HWC_ERROR_FOR("getClientTargetProperty", error, displayId, BAD_INDEX);
 
     outChanges->emplace(DeviceRequestedChanges{std::move(changedTypes), std::move(displayRequests),
                                                std::move(layerRequests),
@@ -925,6 +926,21 @@
     return NO_ERROR;
 }
 
+status_t HWComposer::getRequestedLuts(
+        PhysicalDisplayId displayId,
+        std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>* outLuts) {
+    RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
+    const auto error = mDisplayData[displayId].hwcDisplay->getRequestedLuts(outLuts);
+    if (error == hal::Error::UNSUPPORTED) {
+        RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
+    }
+    if (error == hal::Error::BAD_PARAMETER) {
+        RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
+    }
+    RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
+    return NO_ERROR;
+}
+
 status_t HWComposer::setAutoLowLatencyMode(PhysicalDisplayId displayId, bool on) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error = mDisplayData[displayId].hwcDisplay->setAutoLowLatencyMode(on);

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 9368b7b..dec4bfe 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h

@@ -52,6 +52,7 @@
 #include <aidl/android/hardware/graphics/composer3/ClientTargetPropertyWithBrightness.h>
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
 #include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
+#include <aidl/android/hardware/graphics/composer3/DisplayLuts.h>
 #include <aidl/android/hardware/graphics/composer3/OverlayProperties.h>
 
 namespace android {
@@ -309,6 +310,11 @@
     virtual status_t setRefreshRateChangedCallbackDebugEnabled(PhysicalDisplayId, bool enabled) = 0;
     virtual status_t notifyExpectedPresent(PhysicalDisplayId, TimePoint expectedPresentTime,
                                            Fps frameInterval) = 0;
+
+    // Composer 4.0
+    virtual status_t getRequestedLuts(
+            PhysicalDisplayId,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*) = 0;
 };
 
 static inline bool operator==(const android::HWComposer::DeviceRequestedChanges& lhs,
@@ -472,6 +478,12 @@
     status_t notifyExpectedPresent(PhysicalDisplayId, TimePoint expectedPresentTime,
                                    Fps frameInterval) override;
 
+    // Composer 4.0
+    status_t getRequestedLuts(
+            PhysicalDisplayId,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*)
+            override;
+
     // for debugging ----------------------------------------------------------
     void dump(std::string& out) const override;
     void dumpOverlayProperties(std::string& out) const override;

diff --git a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
index 7c4aa75..ee1e07a 100644
--- a/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/HidlComposerHal.cpp

@@ -46,6 +46,8 @@
 using aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness;
 using aidl::android::hardware::graphics::composer3::DimmingStage;
 using aidl::android::hardware::graphics::composer3::DisplayCapability;
+using aidl::android::hardware::graphics::composer3::DisplayLuts;
+using aidl::android::hardware::graphics::composer3::Lut;
 using aidl::android::hardware::graphics::composer3::OverlayProperties;
 
 namespace android {
@@ -1408,6 +1410,14 @@
     return Error::NONE;
 }
 
+Error HidlComposer::getRequestedLuts(Display, std::vector<DisplayLuts::LayerLut>*) {
+    return Error::NONE;
+}
+
+Error HidlComposer::setLayerLuts(Display, Layer, std::vector<Lut>&) {
+    return Error::NONE;
+}
+
 Error HidlComposer::setLayerBrightness(Display, Layer, float) {
     return Error::NONE;
 }

diff --git a/services/surfaceflinger/DisplayHardware/HidlComposerHal.h b/services/surfaceflinger/DisplayHardware/HidlComposerHal.h
index d78bfb7..701a54b 100644
--- a/services/surfaceflinger/DisplayHardware/HidlComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/HidlComposerHal.h

@@ -351,6 +351,12 @@
                                    Hdr*) override;
     Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) override;
     Error notifyExpectedPresent(Display, nsecs_t, int32_t) override;
+    Error getRequestedLuts(
+            Display,
+            std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*)
+            override;
+    Error setLayerLuts(Display, Layer,
+                       std::vector<aidl::android::hardware::graphics::composer3::Lut>&) override;
 
 private:
     class CommandWriter : public CommandWriterBase {

diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index 4b5a68c..384f7b2 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp

@@ -22,6 +22,7 @@
 
 #include <cinttypes>
 
+#include <com_android_graphics_libgui_flags.h>
 #include <ftl/enum.h>
 #include <ftl/flags.h>
 #include <gui/BufferItem.h>
@@ -51,7 +52,11 @@
                                              const sp<IGraphicBufferProducer>& bqProducer,
                                              const sp<IGraphicBufferConsumer>& bqConsumer,
                                              const std::string& name)
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+      : ConsumerBase(bqProducer, bqConsumer),
+#else
       : ConsumerBase(bqConsumer),
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
         mHwc(hwc),
         mDisplayId(displayId),
         mDisplayName(name),

diff --git a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
index 2a0ee5a..3736abc 100644
--- a/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp
+++ b/services/surfaceflinger/FrameTimeline/FrameTimeline.cpp

@@ -697,6 +697,23 @@
         jd.jankType = mJankType;
         jd.frameIntervalNs =
                 (mRenderRate ? *mRenderRate : mDisplayFrameRenderRate).getPeriodNsecs();
+
+        if (mPredictionState == PredictionState::Valid) {
+            jd.scheduledAppFrameTimeNs = mPredictions.endTime - mPredictions.startTime;
+
+            // Using expected start, rather than actual, to measure the entire frame time. That is
+            // if the application starts the frame later than scheduled, include that delay in the
+            // frame time, as it usually means main thread being busy with non-rendering work.
+            if (mPresentState == PresentState::Dropped) {
+                jd.actualAppFrameTimeNs = mDropTime - mPredictions.startTime;
+            } else {
+                jd.actualAppFrameTimeNs = mActuals.endTime - mPredictions.startTime;
+            }
+        } else {
+            jd.scheduledAppFrameTimeNs = 0;
+            jd.actualAppFrameTimeNs = 0;
+        }
+
         JankTracker::onJankData(mLayerId, jd);
     }
 }

diff --git a/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp b/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
index f4335f3..d709530 100644
--- a/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerHierarchy.cpp

@@ -18,6 +18,8 @@
 #undef LOG_TAG
 #define LOG_TAG "SurfaceFlinger"
 
+#include <android-base/logging.h>
+
 #include "LayerHierarchy.h"
 #include "LayerLog.h"
 #include "SwapErase.h"
@@ -485,6 +487,55 @@
     return it->second;
 }
 
+void LayerHierarchyBuilder::logSampledChildren(const LayerHierarchy& hierarchy) const {
+    LOG(ERROR) << "Dumping random sampling of child layers.";
+    int sampleSize = static_cast<int>(hierarchy.mChildren.size() / 100 + 1);
+    for (const auto& [child, variant] : hierarchy.mChildren) {
+        if (rand() % sampleSize == 0) {
+            LOG(ERROR) << "Child Layer: " << *(child->mLayer);
+        }
+    }
+}
+
+void LayerHierarchyBuilder::dumpLayerSample(const LayerHierarchy& root) const {
+    LOG(ERROR) << "Dumping layer keeping > 20 children alive:";
+    // If mLayer is nullptr, it will be skipped while traversing.
+    if (!root.mLayer && root.mChildren.size() > 20) {
+        LOG(ERROR) << "ROOT has " << root.mChildren.size() << " children";
+        logSampledChildren(root);
+    }
+    root.traverse([&](const LayerHierarchy& hierarchy, const auto&) -> bool {
+        if (hierarchy.mChildren.size() <= 20) {
+            return true;
+        }
+        // mLayer is ensured to be non-null. See LayerHierarchy::traverse.
+        const auto* layer = hierarchy.mLayer;
+        const auto childrenCount = hierarchy.mChildren.size();
+        LOG(ERROR) << "Layer " << *layer << " has " << childrenCount << " children";
+
+        const auto* parent = hierarchy.mParent;
+        while (parent != nullptr) {
+            if (!parent->mLayer) break;
+            LOG(ERROR) << "Parent Layer: " << *(parent->mLayer);
+            parent = parent->mParent;
+        }
+
+        logSampledChildren(hierarchy);
+        // Stop traversing.
+        return false;
+    });
+    LOG(ERROR) << "Dumping random sampled layers.";
+    size_t numLayers = 0;
+    root.traverse([&](const LayerHierarchy& hierarchy, const auto&) -> bool {
+        if (hierarchy.mLayer) numLayers++;
+        if ((rand() % 20 == 13) && hierarchy.mLayer) {
+            LOG(ERROR) << "Layer: " << *(hierarchy.mLayer);
+        }
+        return true;
+    });
+    LOG(ERROR) << "Total layer count: " << numLayers;
+}
+
 const LayerHierarchy::TraversalPath LayerHierarchy::TraversalPath::ROOT =
         {.id = UNASSIGNED_LAYER_ID, .variant = LayerHierarchy::Attached};
 

diff --git a/services/surfaceflinger/FrontEnd/LayerHierarchy.h b/services/surfaceflinger/FrontEnd/LayerHierarchy.h
index d023f9e..47d0041 100644
--- a/services/surfaceflinger/FrontEnd/LayerHierarchy.h
+++ b/services/surfaceflinger/FrontEnd/LayerHierarchy.h

@@ -211,8 +211,11 @@
     const LayerHierarchy& getHierarchy() const;
     const LayerHierarchy& getOffscreenHierarchy() const;
     std::string getDebugString(uint32_t layerId, uint32_t depth = 0) const;
+    void dumpLayerSample(const LayerHierarchy& layerHierarchy) const;
 
 private:
+    void logSampledChildren(const LayerHierarchy& hierarchy) const;
+
     void onLayerAdded(RequestedLayerState* layer);
     void attachToParent(LayerHierarchy*);
     void detachFromParent(LayerHierarchy*);

diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index c874db3..ac15b92 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp

@@ -1265,6 +1265,12 @@
     }
 }
 
+void LayerSnapshotBuilder::forEachSnapshot(const ConstVisitor& visitor) const {
+    for (auto& snapshot : mSnapshots) {
+        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 207e23a..486cb33 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h

@@ -91,6 +91,9 @@
     // snapshots in z-order
     void forEachSnapshot(const Visitor& visitor, const ConstPredicate& predicate);
 
+    // Visit each snapshot
+    void forEachSnapshot(const ConstVisitor& visitor) const;
+
     // Visit each snapshot interesting to input reverse z-order
     void forEachInputSnapshot(const ConstVisitor& visitor) const;
 

diff --git a/services/surfaceflinger/FrontEnd/Update.h b/services/surfaceflinger/FrontEnd/Update.h
index e5cca8f..4af27ab 100644
--- a/services/surfaceflinger/FrontEnd/Update.h
+++ b/services/surfaceflinger/FrontEnd/Update.h

@@ -22,28 +22,13 @@
 #include "RequestedLayerState.h"
 #include "TransactionState.h"
 
-namespace android {
-struct LayerCreatedState {
-    LayerCreatedState(const wp<Layer>& layer, const wp<Layer>& parent, bool addToRoot)
-          : layer(layer), initialParent(parent), addToRoot(addToRoot) {}
-    wp<Layer> layer;
-    // Indicates the initial parent of the created layer, only used for creating layer in
-    // SurfaceFlinger. If nullptr, it may add the created layer into the current root layers.
-    wp<Layer> initialParent;
-    // Indicates whether the layer getting created should be added at root if there's no parent
-    // and has permission ACCESS_SURFACE_FLINGER. If set to false and no parent, the layer will
-    // be added offscreen.
-    bool addToRoot;
-};
-} // namespace android
-
 namespace android::surfaceflinger::frontend {
 
 // Atomic set of changes affecting layer state. These changes are queued in binder threads and
 // applied every vsync.
 struct Update {
     std::vector<TransactionState> transactions;
-    std::vector<LayerCreatedState> layerCreatedStates;
+    std::vector<sp<Layer>> legacyLayers;
     std::vector<std::unique_ptr<frontend::RequestedLayerState>> newLayers;
     std::vector<LayerCreationArgs> layerCreationArgs;
     std::vector<std::pair<uint32_t, std::string /* debugName */>> destroyedHandles;

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index abdf92c..3c8af19 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp

@@ -231,10 +231,6 @@
     LOG_ALWAYS_FATAL_IF(std::this_thread::get_id() != mFlinger->mMainThreadId,
                         "Layer destructor called off the main thread.");
 
-    // The original layer and the clone layer share the same texture and buffer. Therefore, only
-    // one of the layers, in this case the original layer, needs to handle the deletion. The
-    // original layer and the clone should be removed at the same time so there shouldn't be any
-    // issue with the clone layer trying to use the texture.
     if (mBufferInfo.mBuffer != nullptr) {
         callReleaseBufferCallback(mDrawingState.releaseBufferListener,
                                   mBufferInfo.mBuffer->getBuffer(), mBufferInfo.mFrameNumber,
@@ -250,10 +246,6 @@
     if (mDrawingState.sidebandStream != nullptr) {
         mFlinger->mTunnelModeEnabledReporter->decrementTunnelModeCount();
     }
-    if (mHadClonedChild) {
-        auto& roots = mFlinger->mLayerMirrorRoots;
-        roots.erase(std::remove(roots.begin(), roots.end(), this), roots.end());
-    }
     if (hasTrustedPresentationListener()) {
         mFlinger->mNumTrustedPresentationListeners--;
         updateTrustedPresentationState(nullptr, nullptr, -1 /* time_in_ms */, true /* leaveState*/);
@@ -282,49 +274,6 @@
     }
 }
 
-void Layer::removeFromCurrentState() {
-    if (!mRemovedFromDrawingState) {
-        mRemovedFromDrawingState = true;
-        mFlinger->mScheduler->deregisterLayer(this);
-    }
-    updateTrustedPresentationState(nullptr, nullptr, -1 /* time_in_ms */, true /* leaveState*/);
-
-    mFlinger->markLayerPendingRemovalLocked(sp<Layer>::fromExisting(this));
-}
-
-sp<Layer> Layer::getRootLayer() {
-    sp<Layer> parent = getParent();
-    if (parent == nullptr) {
-        return sp<Layer>::fromExisting(this);
-    }
-    return parent->getRootLayer();
-}
-
-void Layer::onRemovedFromCurrentState() {
-    // Use the root layer since we want to maintain the hierarchy for the entire subtree.
-    auto layersInTree = getRootLayer()->getLayersInTree(LayerVector::StateSet::Current);
-    std::sort(layersInTree.begin(), layersInTree.end());
-
-    REQUIRE_MUTEX(mFlinger->mStateLock);
-    traverse(LayerVector::StateSet::Current,
-             [&](Layer* layer) REQUIRES(layer->mFlinger->mStateLock) {
-                 layer->removeFromCurrentState();
-                 layer->removeRelativeZ(layersInTree);
-             });
-}
-
-void Layer::addToCurrentState() {
-    if (mRemovedFromDrawingState) {
-        mRemovedFromDrawingState = false;
-        mFlinger->mScheduler->registerLayer(this, FrameRateCompatibility::Default);
-        mFlinger->removeFromOffscreenLayers(this);
-    }
-
-    for (const auto& child : mCurrentChildren) {
-        child->addToCurrentState();
-    }
-}
-
 // ---------------------------------------------------------------------------
 // set-up
 // ---------------------------------------------------------------------------
@@ -593,7 +542,6 @@
     snapshot->alpha = alpha;
     snapshot->backgroundBlurRadius = getBackgroundBlurRadius();
     snapshot->blurRegions = getBlurRegions();
-    snapshot->stretchEffect = getStretchEffect();
 }
 
 void Layer::prepareGeometryCompositionState() {
@@ -827,33 +775,6 @@
     mTransactionFlags |= mask;
 }
 
-bool Layer::setChildLayer(const sp<Layer>& childLayer, int32_t z) {
-    ssize_t idx = mCurrentChildren.indexOf(childLayer);
-    if (idx < 0) {
-        return false;
-    }
-    if (childLayer->setLayer(z)) {
-        mCurrentChildren.removeAt(idx);
-        mCurrentChildren.add(childLayer);
-        return true;
-    }
-    return false;
-}
-
-bool Layer::setChildRelativeLayer(const sp<Layer>& childLayer,
-        const sp<IBinder>& relativeToHandle, int32_t relativeZ) {
-    ssize_t idx = mCurrentChildren.indexOf(childLayer);
-    if (idx < 0) {
-        return false;
-    }
-    if (childLayer->setRelativeLayer(relativeToHandle, relativeZ)) {
-        mCurrentChildren.removeAt(idx);
-        mCurrentChildren.add(childLayer);
-        return true;
-    }
-    return false;
-}
-
 bool Layer::setLayer(int32_t z) {
     if (mDrawingState.z == z && !usingRelativeZ(LayerVector::StateSet::Current)) return false;
     mDrawingState.sequence++;
@@ -960,46 +881,6 @@
     return true;
 }
 
-bool Layer::setBackgroundColor(const half3& color, float alpha, ui::Dataspace dataspace) {
-    if (!mDrawingState.bgColorLayer && alpha == 0) {
-        return false;
-    }
-    mDrawingState.sequence++;
-    mDrawingState.modified = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    if (!mDrawingState.bgColorLayer && alpha != 0) {
-        // create background color layer if one does not yet exist
-        uint32_t flags = ISurfaceComposerClient::eFXSurfaceEffect;
-        std::string name = mName + "BackgroundColorLayer";
-        mDrawingState.bgColorLayer = mFlinger->getFactory().createEffectLayer(
-                surfaceflinger::LayerCreationArgs(mFlinger.get(), nullptr, std::move(name), flags,
-                                                  LayerMetadata()));
-
-        // add to child list
-        addChild(mDrawingState.bgColorLayer);
-        mFlinger->mLayersAdded = true;
-        // set up SF to handle added color layer
-        if (isRemovedFromCurrentState()) {
-            MUTEX_ALIAS(mFlinger->mStateLock, mDrawingState.bgColorLayer->mFlinger->mStateLock);
-            mDrawingState.bgColorLayer->onRemovedFromCurrentState();
-        }
-        mFlinger->setTransactionFlags(eTransactionNeeded);
-    } else if (mDrawingState.bgColorLayer && alpha == 0) {
-        MUTEX_ALIAS(mFlinger->mStateLock, mDrawingState.bgColorLayer->mFlinger->mStateLock);
-        mDrawingState.bgColorLayer->reparent(nullptr);
-        mDrawingState.bgColorLayer = nullptr;
-        return true;
-    }
-
-    mDrawingState.bgColorLayer->setColor(color);
-    mDrawingState.bgColorLayer->setLayer(std::numeric_limits<int32_t>::min());
-    mDrawingState.bgColorLayer->setAlpha(alpha);
-    mDrawingState.bgColorLayer->setDataspace(dataspace);
-
-    return true;
-}
-
 bool Layer::setCornerRadius(float cornerRadius) {
     if (mDrawingState.cornerRadius == cornerRadius) return false;
 
@@ -1150,22 +1031,6 @@
     return true;
 }
 
-StretchEffect Layer::getStretchEffect() const {
-    if (mDrawingState.stretchEffect.hasEffect()) {
-        return mDrawingState.stretchEffect;
-    }
-
-    sp<Layer> parent = getParent();
-    if (parent != nullptr) {
-        auto effect = parent->getStretchEffect();
-        if (effect.hasEffect()) {
-            // TODO(b/179047472): Map it? Or do we make the effect be in global space?
-            return effect;
-        }
-    }
-    return StretchEffect{};
-}
-
 void Layer::setFrameTimelineVsyncForBufferTransaction(const FrameTimelineInfo& info,
                                                       nsecs_t postTime, gui::GameMode gameMode) {
     mDrawingState.postTime = postTime;
@@ -1350,14 +1215,6 @@
     return usage;
 }
 
-void Layer::updateTransformHint(ui::Transform::RotationFlags transformHint) {
-    if (mFlinger->mDebugDisableTransformHint || transformHint & ui::Transform::ROT_INVALID) {
-        transformHint = ui::Transform::ROT_0;
-    }
-
-    setTransformHintLegacy(transformHint);
-}
-
 // ----------------------------------------------------------------------------
 // debugging
 // ----------------------------------------------------------------------------
@@ -1448,32 +1305,6 @@
     mFlinger->mFrameTracer->onDestroy(layerId);
 }
 
-size_t Layer::getDescendantCount() const {
-    size_t count = 0;
-    for (const sp<Layer>& child : mDrawingChildren) {
-        count += 1 + child->getChildrenCount();
-    }
-    return count;
-}
-
-void Layer::addChild(const sp<Layer>& layer) {
-    mFlinger->mSomeChildrenChanged = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    mCurrentChildren.add(layer);
-    layer->setParent(sp<Layer>::fromExisting(this));
-}
-
-ssize_t Layer::removeChild(const sp<Layer>& layer) {
-    mFlinger->mSomeChildrenChanged = true;
-    setTransactionFlags(eTransactionNeeded);
-
-    layer->setParent(nullptr);
-    const auto removeResult = mCurrentChildren.remove(layer);
-
-    return removeResult;
-}
-
 void Layer::setChildrenDrawingParent(const sp<Layer>& newParent) {
     for (const sp<Layer>& child : mDrawingChildren) {
         child->mDrawingParent = newParent;
@@ -1484,39 +1315,6 @@
     }
 }
 
-bool Layer::reparent(const sp<IBinder>& newParentHandle) {
-    sp<Layer> newParent;
-    if (newParentHandle != nullptr) {
-        newParent = LayerHandle::getLayer(newParentHandle);
-        if (newParent == nullptr) {
-            ALOGE("Unable to promote Layer handle");
-            return false;
-        }
-        if (newParent == this) {
-            ALOGE("Invalid attempt to reparent Layer (%s) to itself", getName().c_str());
-            return false;
-        }
-    }
-
-    sp<Layer> parent = getParent();
-    if (parent != nullptr) {
-        parent->removeChild(sp<Layer>::fromExisting(this));
-    }
-
-    if (newParentHandle != nullptr) {
-        newParent->addChild(sp<Layer>::fromExisting(this));
-        if (!newParent->isRemovedFromCurrentState()) {
-            addToCurrentState();
-        } else {
-            onRemovedFromCurrentState();
-        }
-    } else {
-        onRemovedFromCurrentState();
-    }
-
-    return true;
-}
-
 bool Layer::setColorTransform(const mat4& matrix) {
     static const mat4 identityMatrix = mat4();
 
@@ -1599,167 +1397,6 @@
     return traverse;
 }
 
-/**
- * Negatively signed relatives are before 'this' in Z-order.
- */
-void Layer::traverseInZOrder(LayerVector::StateSet stateSet, const LayerVector::Visitor& visitor) {
-    // In the case we have other layers who are using a relative Z to us, makeTraversalList will
-    // produce a new list for traversing, including our relatives, and not including our children
-    // who are relatives of another surface. In the case that there are no relative Z,
-    // makeTraversalList returns our children directly to avoid significant overhead.
-    // However in this case we need to take the responsibility for filtering children which
-    // are relatives of another surface here.
-    bool skipRelativeZUsers = false;
-    const LayerVector list = makeTraversalList(stateSet, &skipRelativeZUsers);
-
-    size_t i = 0;
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-
-        if (relative->getZ(stateSet) >= 0) {
-            break;
-        }
-        relative->traverseInZOrder(stateSet, visitor);
-    }
-
-    visitor(this);
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-        relative->traverseInZOrder(stateSet, visitor);
-    }
-}
-
-/**
- * Positively signed relatives are before 'this' in reverse Z-order.
- */
-void Layer::traverseInReverseZOrder(LayerVector::StateSet stateSet,
-                                    const LayerVector::Visitor& visitor) {
-    // See traverseInZOrder for documentation.
-    bool skipRelativeZUsers = false;
-    LayerVector list = makeTraversalList(stateSet, &skipRelativeZUsers);
-
-    int32_t i = 0;
-    for (i = int32_t(list.size()) - 1; i >= 0; i--) {
-        const auto& relative = list[i];
-
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-
-        if (relative->getZ(stateSet) < 0) {
-            break;
-        }
-        relative->traverseInReverseZOrder(stateSet, visitor);
-    }
-    visitor(this);
-    for (; i >= 0; i--) {
-        const auto& relative = list[i];
-
-        if (skipRelativeZUsers && relative->usingRelativeZ(stateSet)) {
-            continue;
-        }
-
-        relative->traverseInReverseZOrder(stateSet, visitor);
-    }
-}
-
-void Layer::traverse(LayerVector::StateSet state, const LayerVector::Visitor& visitor) {
-    visitor(this);
-    const LayerVector& children =
-          state == LayerVector::StateSet::Drawing ? mDrawingChildren : mCurrentChildren;
-    for (const sp<Layer>& child : children) {
-        child->traverse(state, visitor);
-    }
-}
-
-void Layer::traverseChildren(const LayerVector::Visitor& visitor) {
-    for (const sp<Layer>& child : mDrawingChildren) {
-        visitor(child.get());
-    }
-}
-
-LayerVector Layer::makeChildrenTraversalList(LayerVector::StateSet stateSet,
-                                             const std::vector<Layer*>& layersInTree) {
-    LOG_ALWAYS_FATAL_IF(stateSet == LayerVector::StateSet::Invalid,
-                        "makeTraversalList received invalid stateSet");
-    const bool useDrawing = stateSet == LayerVector::StateSet::Drawing;
-    const LayerVector& children = useDrawing ? mDrawingChildren : mCurrentChildren;
-    const State& state = useDrawing ? mDrawingState : mDrawingState;
-
-    LayerVector traverse(stateSet);
-    for (const wp<Layer>& weakRelative : state.zOrderRelatives) {
-        sp<Layer> strongRelative = weakRelative.promote();
-        // Only add relative layers that are also descendents of the top most parent of the tree.
-        // If a relative layer is not a descendent, then it should be ignored.
-        if (std::binary_search(layersInTree.begin(), layersInTree.end(), strongRelative.get())) {
-            traverse.add(strongRelative);
-        }
-    }
-
-    for (const sp<Layer>& child : children) {
-        const State& childState = useDrawing ? child->mDrawingState : child->mDrawingState;
-        // If a layer has a relativeOf layer, only ignore if the layer it's relative to is a
-        // descendent of the top most parent of the tree. If it's not a descendent, then just add
-        // the child here since it won't be added later as a relative.
-        if (std::binary_search(layersInTree.begin(), layersInTree.end(),
-                               childState.zOrderRelativeOf.promote().get())) {
-            continue;
-        }
-        traverse.add(child);
-    }
-
-    return traverse;
-}
-
-void Layer::traverseChildrenInZOrderInner(const std::vector<Layer*>& layersInTree,
-                                          LayerVector::StateSet stateSet,
-                                          const LayerVector::Visitor& visitor) {
-    const LayerVector list = makeChildrenTraversalList(stateSet, layersInTree);
-
-    size_t i = 0;
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-        if (relative->getZ(stateSet) >= 0) {
-            break;
-        }
-        relative->traverseChildrenInZOrderInner(layersInTree, stateSet, visitor);
-    }
-
-    visitor(this);
-    for (; i < list.size(); i++) {
-        const auto& relative = list[i];
-        relative->traverseChildrenInZOrderInner(layersInTree, stateSet, visitor);
-    }
-}
-
-std::vector<Layer*> Layer::getLayersInTree(LayerVector::StateSet stateSet) {
-    const bool useDrawing = stateSet == LayerVector::StateSet::Drawing;
-    const LayerVector& children = useDrawing ? mDrawingChildren : mCurrentChildren;
-
-    std::vector<Layer*> layersInTree = {this};
-    for (size_t i = 0; i < children.size(); i++) {
-        const auto& child = children[i];
-        std::vector<Layer*> childLayers = child->getLayersInTree(stateSet);
-        layersInTree.insert(layersInTree.end(), childLayers.cbegin(), childLayers.cend());
-    }
-
-    return layersInTree;
-}
-
-void Layer::traverseChildrenInZOrder(LayerVector::StateSet stateSet,
-                                     const LayerVector::Visitor& visitor) {
-    std::vector<Layer*> layersInTree = getLayersInTree(stateSet);
-    std::sort(layersInTree.begin(), layersInTree.end());
-    traverseChildrenInZOrderInner(layersInTree, stateSet, visitor);
-}
-
 ui::Transform Layer::getTransform() const {
     return mEffectiveTransform;
 }
@@ -1870,27 +1507,6 @@
     return false;
 }
 
-void Layer::commitChildList() {
-    for (size_t i = 0; i < mCurrentChildren.size(); i++) {
-        const auto& child = mCurrentChildren[i];
-        child->commitChildList();
-    }
-    mDrawingChildren = mCurrentChildren;
-    mDrawingParent = mCurrentParent;
-    if (CC_UNLIKELY(usingRelativeZ(LayerVector::StateSet::Drawing))) {
-        auto zOrderRelativeOf = mDrawingState.zOrderRelativeOf.promote();
-        if (zOrderRelativeOf == nullptr) return;
-        if (findInHierarchy(zOrderRelativeOf)) {
-            ALOGE("Detected Z ordering loop between %s and %s", mName.c_str(),
-                  zOrderRelativeOf->mName.c_str());
-            ALOGE("Severing rel Z loop, potentially dangerous");
-            mDrawingState.isRelativeOf = false;
-            zOrderRelativeOf->removeZOrderRelative(wp<Layer>::fromExisting(this));
-        }
-    }
-}
-
-
 void Layer::setInputInfo(const WindowInfo& info) {
     mDrawingState.inputInfo = info;
     mDrawingState.touchableRegionCrop =
@@ -2057,10 +1673,6 @@
                                    [&]() { return layerInfo->mutable_destination_frame(); });
 }
 
-bool Layer::isRemovedFromCurrentState() const  {
-    return mRemovedFromDrawingState;
-}
-
 // Applies the given transform to the region, while protecting against overflows caused by any
 // offsets. If applying the offset in the transform to any of the Rects in the region would result
 // in an overflow, they are not added to the output Region.
@@ -2252,16 +1864,6 @@
         info.inputConfig |= WindowInfo::InputConfig::TRUSTED_OVERLAY;
     }
 
-    // If the layer is a clone, we need to crop the input region to cloned root to prevent
-    // touches from going outside the cloned area.
-    if (isClone()) {
-        info.inputConfig |= WindowInfo::InputConfig::CLONE;
-        if (const sp<Layer> clonedRoot = getClonedRoot()) {
-            const Rect rect = displayTransform.transform(Rect{clonedRoot->mScreenBounds});
-            info.touchableRegion = info.touchableRegion.intersect(rect);
-        }
-    }
-
     Rect bufferSize = getBufferSize(getDrawingState());
     info.contentSize = Size(bufferSize.width(), bufferSize.height());
 
@@ -2289,16 +1891,6 @@
     return Rect{layerToDisplay.transform(croppedInputBounds)};
 }
 
-sp<Layer> Layer::getClonedRoot() {
-    if (mClonedChild != nullptr) {
-        return sp<Layer>::fromExisting(this);
-    }
-    if (mDrawingParent == nullptr || mDrawingParent.promote() == nullptr) {
-        return nullptr;
-    }
-    return mDrawingParent.promote()->getClonedRoot();
-}
-
 bool Layer::hasInputInfo() const {
     return mDrawingState.inputInfo.token != nullptr ||
             mDrawingState.inputInfo.inputConfig.test(WindowInfo::InputConfig::NO_INPUT_CHANNEL);
@@ -2338,170 +1930,6 @@
     return outputLayer ? outputLayer->getState().visibleRegion : Region();
 }
 
-void Layer::updateCloneBufferInfo() {
-    if (!isClone() || !isClonedFromAlive()) {
-        return;
-    }
-
-    sp<Layer> clonedFrom = getClonedFrom();
-    mBufferInfo = clonedFrom->mBufferInfo;
-    mSidebandStream = clonedFrom->mSidebandStream;
-    surfaceDamageRegion = clonedFrom->surfaceDamageRegion;
-    mCurrentFrameNumber = clonedFrom->mCurrentFrameNumber.load();
-    mPreviousFrameNumber = clonedFrom->mPreviousFrameNumber;
-
-    // After buffer info is updated, the drawingState from the real layer needs to be copied into
-    // the cloned. This is because some properties of drawingState can change when latchBuffer is
-    // called. However, copying the drawingState would also overwrite the cloned layer's relatives
-    // and touchableRegionCrop. Therefore, temporarily store the relatives so they can be set in
-    // the cloned drawingState again.
-    wp<Layer> tmpZOrderRelativeOf = mDrawingState.zOrderRelativeOf;
-    SortedVector<wp<Layer>> tmpZOrderRelatives = mDrawingState.zOrderRelatives;
-    wp<Layer> tmpTouchableRegionCrop = mDrawingState.touchableRegionCrop;
-    WindowInfo tmpInputInfo = mDrawingState.inputInfo;
-
-    cloneDrawingState(clonedFrom.get());
-
-    mDrawingState.touchableRegionCrop = tmpTouchableRegionCrop;
-    mDrawingState.zOrderRelativeOf = tmpZOrderRelativeOf;
-    mDrawingState.zOrderRelatives = tmpZOrderRelatives;
-    mDrawingState.inputInfo = tmpInputInfo;
-}
-
-bool Layer::updateMirrorInfo(const std::deque<Layer*>& cloneRootsPendingUpdates) {
-    if (mClonedChild == nullptr || !mClonedChild->isClonedFromAlive()) {
-        // If mClonedChild is null, there is nothing to mirror. If isClonedFromAlive returns false,
-        // it means that there is a clone, but the layer it was cloned from has been destroyed. In
-        // that case, we want to delete the reference to the clone since we want it to get
-        // destroyed. The root, this layer, will still be around since the client can continue
-        // to hold a reference, but no cloned layers will be displayed.
-        mClonedChild = nullptr;
-        return true;
-    }
-
-    std::map<sp<Layer>, sp<Layer>> clonedLayersMap;
-    // If the real layer exists and is in current state, add the clone as a child of the root.
-    // There's no need to remove from drawingState when the layer is offscreen since currentState is
-    // copied to drawingState for the root layer. So the clonedChild is always removed from
-    // drawingState and then needs to be added back each traversal.
-    if (!mClonedChild->getClonedFrom()->isRemovedFromCurrentState()) {
-        addChildToDrawing(mClonedChild);
-    }
-
-    mClonedChild->updateClonedDrawingState(clonedLayersMap);
-    mClonedChild->updateClonedChildren(sp<Layer>::fromExisting(this), clonedLayersMap);
-    mClonedChild->updateClonedRelatives(clonedLayersMap);
-
-    for (Layer* root : cloneRootsPendingUpdates) {
-        if (clonedLayersMap.find(sp<Layer>::fromExisting(root)) != clonedLayersMap.end()) {
-            return false;
-        }
-    }
-    return true;
-}
-
-void Layer::updateClonedDrawingState(std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    // If the layer the clone was cloned from is alive, copy the content of the drawingState
-    // to the clone. If the real layer is no longer alive, continue traversing the children
-    // since we may be able to pull out other children that are still alive.
-    if (isClonedFromAlive()) {
-        sp<Layer> clonedFrom = getClonedFrom();
-        cloneDrawingState(clonedFrom.get());
-        clonedLayersMap.emplace(clonedFrom, sp<Layer>::fromExisting(this));
-    }
-
-    // The clone layer may have children in drawingState since they may have been created and
-    // added from a previous request to updateMirorInfo. This is to ensure we don't recreate clones
-    // that already exist, since we can just re-use them.
-    // The drawingChildren will not get overwritten by the currentChildren since the clones are
-    // not updated in the regular traversal. They are skipped since the root will lose the
-    // reference to them when it copies its currentChildren to drawing.
-    for (sp<Layer>& child : mDrawingChildren) {
-        child->updateClonedDrawingState(clonedLayersMap);
-    }
-}
-
-void Layer::updateClonedChildren(const sp<Layer>& mirrorRoot,
-                                 std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    mDrawingChildren.clear();
-
-    if (!isClonedFromAlive()) {
-        return;
-    }
-
-    sp<Layer> clonedFrom = getClonedFrom();
-    for (sp<Layer>& child : clonedFrom->mDrawingChildren) {
-        if (child == mirrorRoot) {
-            // This is to avoid cyclical mirroring.
-            continue;
-        }
-        sp<Layer> clonedChild = clonedLayersMap[child];
-        if (clonedChild == nullptr) {
-            clonedChild = child->createClone();
-            clonedLayersMap[child] = clonedChild;
-        }
-        addChildToDrawing(clonedChild);
-        clonedChild->updateClonedChildren(mirrorRoot, clonedLayersMap);
-    }
-}
-
-void Layer::updateClonedInputInfo(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    auto cropLayer = mDrawingState.touchableRegionCrop.promote();
-    if (cropLayer != nullptr) {
-        if (clonedLayersMap.count(cropLayer) == 0) {
-            // Real layer had a crop layer but it's not in the cloned hierarchy. Just set to
-            // self as crop layer to avoid going outside bounds.
-            mDrawingState.touchableRegionCrop = wp<Layer>::fromExisting(this);
-        } else {
-            const sp<Layer>& clonedCropLayer = clonedLayersMap.at(cropLayer);
-            mDrawingState.touchableRegionCrop = clonedCropLayer;
-        }
-    }
-    // Cloned layers shouldn't handle watch outside since their z order is not determined by
-    // WM or the client.
-    mDrawingState.inputInfo.setInputConfig(WindowInfo::InputConfig::WATCH_OUTSIDE_TOUCH, false);
-}
-
-void Layer::updateClonedRelatives(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap) {
-    mDrawingState.zOrderRelativeOf = wp<Layer>();
-    mDrawingState.zOrderRelatives.clear();
-
-    if (!isClonedFromAlive()) {
-        return;
-    }
-
-    const sp<Layer>& clonedFrom = getClonedFrom();
-    for (wp<Layer>& relativeWeak : clonedFrom->mDrawingState.zOrderRelatives) {
-        const sp<Layer>& relative = relativeWeak.promote();
-        if (clonedLayersMap.count(relative) > 0) {
-            auto& clonedRelative = clonedLayersMap.at(relative);
-            mDrawingState.zOrderRelatives.add(clonedRelative);
-        }
-    }
-
-    // Check if the relativeLayer for the real layer is part of the cloned hierarchy.
-    // It's possible that the layer it's relative to is outside the requested cloned hierarchy.
-    // In that case, we treat the layer as if the relativeOf has been removed. This way, it will
-    // still traverse the children, but the layer with the missing relativeOf will not be shown
-    // on screen.
-    const sp<Layer>& relativeOf = clonedFrom->mDrawingState.zOrderRelativeOf.promote();
-    if (clonedLayersMap.count(relativeOf) > 0) {
-        const sp<Layer>& clonedRelativeOf = clonedLayersMap.at(relativeOf);
-        mDrawingState.zOrderRelativeOf = clonedRelativeOf;
-    }
-
-    updateClonedInputInfo(clonedLayersMap);
-
-    for (sp<Layer>& child : mDrawingChildren) {
-        child->updateClonedRelatives(clonedLayersMap);
-    }
-}
-
-void Layer::addChildToDrawing(const sp<Layer>& layer) {
-    mDrawingChildren.add(layer);
-    layer->mDrawingParent = sp<Layer>::fromExisting(this);
-}
-
 bool Layer::isInternalDisplayOverlay() const {
     const State& s(mDrawingState);
     if (s.flags & layer_state_t::eLayerSkipScreenshot) {
@@ -2512,12 +1940,6 @@
     return parent && parent->isInternalDisplayOverlay();
 }
 
-void Layer::setClonedChild(const sp<Layer>& clonedChild) {
-    mClonedChild = clonedChild;
-    mHadClonedChild = true;
-    mFlinger->mLayerMirrorRoots.push_back(this);
-}
-
 bool Layer::setDropInputMode(gui::DropInputMode mode) {
     if (mDrawingState.dropInputMode == mode) {
         return false;
@@ -2526,27 +1948,27 @@
     return true;
 }
 
-void Layer::cloneDrawingState(const Layer* from) {
-    mDrawingState = from->mDrawingState;
-    // Skip callback info since they are not applicable for cloned layers.
-    mDrawingState.releaseBufferListener = nullptr;
-    // TODO (b/238781169) currently broken for mirror layers because we do not
-    // track release fences for mirror layers composed on other displays
-    mDrawingState.callbackHandles = {};
-}
-
 void Layer::callReleaseBufferCallback(const sp<ITransactionCompletedListener>& listener,
                                       const sp<GraphicBuffer>& buffer, uint64_t framenumber,
                                       const sp<Fence>& releaseFence) {
-    if (!listener) {
+    if (!listener && !mBufferReleaseChannel) {
         return;
     }
+
     SFTRACE_FORMAT_INSTANT("callReleaseBufferCallback %s - %" PRIu64, getDebugName(), framenumber);
+
+    ReleaseCallbackId callbackId{buffer->getId(), framenumber};
+    const sp<Fence>& fence = releaseFence ? releaseFence : Fence::NO_FENCE;
     uint32_t currentMaxAcquiredBufferCount =
             mFlinger->getMaxAcquiredBufferCountForCurrentRefreshRate(mOwnerUid);
-    listener->onReleaseBuffer({buffer->getId(), framenumber},
-                              releaseFence ? releaseFence : Fence::NO_FENCE,
-                              currentMaxAcquiredBufferCount);
+
+    if (listener) {
+        listener->onReleaseBuffer(callbackId, fence, currentMaxAcquiredBufferCount);
+    }
+
+    if (mBufferReleaseChannel) {
+        mBufferReleaseChannel->writeReleaseFence(callbackId, fence, currentMaxAcquiredBufferCount);
+    }
 }
 
 sp<CallbackHandle> Layer::findCallbackHandle() {
@@ -2664,6 +2086,7 @@
 
 void Layer::releasePendingBuffer(nsecs_t dequeueReadyTime) {
     for (const auto& handle : mDrawingState.callbackHandles) {
+        handle->bufferReleaseChannel = mBufferReleaseChannel;
         handle->transformHint = mTransformHint;
         handle->dequeueReadyTime = dequeueReadyTime;
         handle->currentMaxAcquiredBufferCount =
@@ -3381,13 +2804,6 @@
     }
 }
 
-sp<Layer> Layer::createClone() {
-    surfaceflinger::LayerCreationArgs args(mFlinger.get(), nullptr, mName + " (Mirror)", 0,
-                                           LayerMetadata());
-    sp<Layer> layer = mFlinger->getFactory().createBufferStateLayer(args);
-    return layer;
-}
-
 void Layer::decrementPendingBufferCount() {
     int32_t pendingBuffers = --mPendingBufferTransactions;
     tracePendingBufferCount(pendingBuffers);
@@ -4001,13 +3417,6 @@
     return mBufferInfo.mBuffer ? mBufferInfo.mBuffer->getBuffer() : nullptr;
 }
 
-void Layer::setTransformHintLegacy(ui::Transform::RotationFlags displayTransformHint) {
-    mTransformHintLegacy = getFixedTransformHint();
-    if (mTransformHintLegacy == ui::Transform::ROT_INVALID) {
-        mTransformHintLegacy = displayTransformHint;
-    }
-}
-
 const std::shared_ptr<renderengine::ExternalTexture>& Layer::getExternalTexture() const {
     return mBufferInfo.mBuffer;
 }
@@ -4109,6 +3518,11 @@
     return haveTrustedPresentationListener;
 }
 
+void Layer::setBufferReleaseChannel(
+        const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel) {
+    mBufferReleaseChannel = channel;
+}
+
 void Layer::updateLastLatchTime(nsecs_t latchTime) {
     mLastLatchTime = latchTime;
 }

diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 948c62d..1e4f2dc 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h

@@ -250,8 +250,6 @@
     // true if this layer is visible, false otherwise
     virtual bool isVisible() const;
 
-    virtual sp<Layer> createClone();
-
     // Set a 2x2 transformation matrix on the layer. This transform
     // will be applied after parent transforms, but before any final
     // producer specified transform.
@@ -297,7 +295,6 @@
 
     virtual bool setMetadata(const LayerMetadata& data);
     virtual void setChildrenDrawingParent(const sp<Layer>&);
-    virtual bool reparent(const sp<IBinder>& newParentHandle) REQUIRES(mFlinger->mStateLock);
     virtual bool setColorTransform(const mat4& matrix);
     virtual mat4 getColorTransform() const;
     virtual bool hasColorTransform() const;
@@ -326,8 +323,6 @@
                            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 setFixedTransformHint(ui::Transform::RotationFlags fixedTransformHint);
@@ -426,7 +421,6 @@
 
     // from graphics API
     static ui::Dataspace translateDataspace(ui::Dataspace dataspace);
-    void updateCloneBufferInfo();
     uint64_t mPreviousFrameNumber = 0;
 
     void onCompositionPresented(const DisplayDevice*,
@@ -543,6 +537,7 @@
     };
 
     BufferInfo mBufferInfo;
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> mBufferReleaseChannel;
 
     // implements compositionengine::LayerFE
     const compositionengine::LayerFECompositionState* getCompositionState() const;
@@ -638,8 +633,6 @@
         return {getLayerStack(), isInternalDisplayOverlay()};
     }
 
-    bool isRemovedFromCurrentState() const;
-
     perfetto::protos::LayerProto* writeToProto(perfetto::protos::LayersProto& layersProto,
                                                uint32_t traceFlags);
     void writeCompositionStateToProto(perfetto::protos::LayerProto* layerProto,
@@ -657,8 +650,6 @@
 
     gui::WindowInfo::Type getWindowType() const { return mWindowType; }
 
-    bool updateMirrorInfo(const std::deque<Layer*>& cloneRootsPendingUpdates);
-
     /*
      * doTransaction - process the transaction. This is a good place to figure
      * out which attributes of the surface have changed.
@@ -671,26 +662,6 @@
      */
     void removeRelativeZ(const std::vector<Layer*>& layersInTree);
 
-    /*
-     * Remove from current state and mark for removal.
-     */
-    void removeFromCurrentState() REQUIRES(mFlinger->mStateLock);
-
-    /*
-     * called with the state lock from a binder thread when the layer is
-     * removed from the current list to the pending removal list
-     */
-    void onRemovedFromCurrentState() REQUIRES(mFlinger->mStateLock);
-
-    /*
-     * Called when the layer is added back to the current state list.
-     */
-    void addToCurrentState();
-
-    /*
-     * Sets display transform hint on BufferLayerConsumer.
-     */
-    void updateTransformHint(ui::Transform::RotationFlags);
     inline const State& getDrawingState() const { return mDrawingState; }
     inline State& getDrawingState() { return mDrawingState; }
 
@@ -719,57 +690,9 @@
     // is ready to acquire a buffer.
     ui::Transform::RotationFlags getFixedTransformHint() const;
 
-    /**
-     * Traverse this layer and it's hierarchy of children directly. Unlike traverseInZOrder
-     * which will not emit children who have relativeZOrder to another layer, this method
-     * just directly emits all children. It also emits them in no particular order.
-     * So this method is not suitable for graphical operations, as it doesn't represent
-     * the scene state, but it's also more efficient than traverseInZOrder and so useful for
-     * book-keeping.
-     */
-    void traverse(LayerVector::StateSet, const LayerVector::Visitor&);
-    void traverseInReverseZOrder(LayerVector::StateSet, const LayerVector::Visitor&);
-    void traverseInZOrder(LayerVector::StateSet, const LayerVector::Visitor&);
-    void traverseChildren(const LayerVector::Visitor&);
-
-    /**
-     * Traverse only children in z order, ignoring relative layers that are not children of the
-     * parent.
-     */
-    void traverseChildrenInZOrder(LayerVector::StateSet, const LayerVector::Visitor&);
-
-    size_t getDescendantCount() const;
-    size_t getChildrenCount() const { return mDrawingChildren.size(); }
     bool isHandleAlive() const { return mHandleAlive; }
     bool onHandleDestroyed() { return mHandleAlive = false; }
-
-    // ONLY CALL THIS FROM THE LAYER DTOR!
-    // See b/141111965.  We need to add current children to offscreen layers in
-    // the layer dtor so as not to dangle layers.  Since the layer has not
-    // committed its transaction when the layer is destroyed, we must add
-    // current children.  This is safe in the dtor as we will no longer update
-    // the current state, but should not be called anywhere else!
-    LayerVector& getCurrentChildren() { return mCurrentChildren; }
-
-    void addChild(const sp<Layer>&);
-    // Returns index if removed, or negative value otherwise
-    // for symmetry with Vector::remove
-    ssize_t removeChild(const sp<Layer>& layer);
-    sp<Layer> getParent() const { return mCurrentParent.promote(); }
-
-    // Should be called with the surfaceflinger statelock held
-    bool isAtRoot() const { return mIsAtRoot; }
-    void setIsAtRoot(bool isAtRoot) { mIsAtRoot = isAtRoot; }
-
-    bool hasParent() const { return getParent() != nullptr; }
     Rect getScreenBounds(bool reduceTransparentRegion = true) const;
-    bool setChildLayer(const sp<Layer>& childLayer, int32_t z);
-    bool setChildRelativeLayer(const sp<Layer>& childLayer,
-            const sp<IBinder>& relativeToHandle, int32_t relativeZ);
-
-    // Copy the current list of children to the drawing state. Called by
-    // SurfaceFlinger to complete a transaction.
-    void commitChildList();
     int32_t getZ(LayerVector::StateSet) const;
 
     /**
@@ -802,6 +725,8 @@
 
     bool setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                     TrustedPresentationListener const& listener);
+    void setBufferReleaseChannel(
+            const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel);
 
     // Creates a new handle each time, so we only expect
     // this to be called once.
@@ -827,15 +752,6 @@
 
     int32_t getOwnerAppId() { return mOwnerAppId; }
 
-    // This layer is not a clone, but it's the parent to the cloned hierarchy. The
-    // variable mClonedChild represents the top layer that will be cloned so this
-    // layer will be the parent of mClonedChild.
-    // The layers in the cloned hierarchy will match the lifetime of the real layers. That is
-    // if the real layer is destroyed, then the clone layer will also be destroyed.
-    sp<Layer> mClonedChild;
-    bool mHadClonedChild = false;
-    void setClonedChild(const sp<Layer>& mClonedChild);
-
     mutable bool contentDirty{false};
     Region surfaceDamageRegion;
 
@@ -859,7 +775,6 @@
     }
 
     bool setStretchEffect(const StretchEffect& effect);
-    StretchEffect getStretchEffect() const;
 
     bool setBufferCrop(const Rect& /* bufferCrop */);
     bool setDestinationFrame(const Rect& /* destinationFrame */);
@@ -881,10 +796,6 @@
     // CompositionEngine to create a single path for composing layers.
     void updateSnapshot(bool updateGeometry);
     void updateChildrenSnapshots(bool updateGeometry);
-    sp<Layer> getClonedFrom() const {
-        return mClonedFrom != nullptr ? mClonedFrom.promote() : nullptr;
-    }
-    bool isClone() { return mClonedFrom != nullptr; }
 
     bool willPresentCurrentTransaction() const;
 
@@ -950,16 +861,6 @@
     void preparePerFrameEffectsCompositionState();
     void gatherBufferInfo();
 
-    bool isClonedFromAlive() { return getClonedFrom() != nullptr; }
-
-    void cloneDrawingState(const Layer* from);
-    void updateClonedDrawingState(std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-    void updateClonedChildren(const sp<Layer>& mirrorRoot,
-                              std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-    void updateClonedRelatives(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-    void addChildToDrawing(const sp<Layer>&);
-    void updateClonedInputInfo(const std::map<sp<Layer>, sp<Layer>>& clonedLayersMap);
-
     void prepareBasicGeometryCompositionState();
     void prepareGeometryCompositionState();
     void prepareCursorCompositionState();
@@ -1090,19 +991,6 @@
             const DisplayDevice&) const;
     aidl::android::hardware::graphics::composer3::Composition getCompositionType(
             const compositionengine::OutputLayer*) const;
-    /**
-     * Returns an unsorted vector of all layers that are part of this tree.
-     * That includes the current layer and all its descendants.
-     */
-    std::vector<Layer*> getLayersInTree(LayerVector::StateSet);
-    /**
-     * Traverses layers that are part of this tree in the correct z order.
-     * layersInTree must be sorted before calling this method.
-     */
-    void traverseChildrenInZOrderInner(const std::vector<Layer*>& layersInTree,
-                                       LayerVector::StateSet, const LayerVector::Visitor&);
-    LayerVector makeChildrenTraversalList(LayerVector::StateSet,
-                                          const std::vector<Layer*>& layersInTree);
 
     bool propagateFrameRateForLayerTree(FrameRate parentFrameRate, bool overrideChildren,
                                         bool* transactionNeeded);
@@ -1111,10 +999,6 @@
     gui::DropInputMode getDropInputMode() const;
     void handleDropInputMode(gui::WindowInfo& info) const;
 
-    // Find the root of the cloned hierarchy, this means the first non cloned parent.
-    // This will return null if first non cloned parent is not found.
-    sp<Layer> getClonedRoot();
-
     // Finds the top most layer in the hierarchy. This will find the root Layer where the parent is
     // null.
     sp<Layer> getRootLayer();
@@ -1189,12 +1073,6 @@
 
     bool mGetHandleCalled = false;
 
-    // The current layer is a clone of mClonedFrom. This means that this layer will update it's
-    // properties based on mClonedFrom. When mClonedFrom latches a new buffer for BufferLayers,
-    // this layer will update it's buffer. When mClonedFrom updates it's drawing state, children,
-    // and relatives, this layer will update as well.
-    wp<Layer> mClonedFrom;
-
     // The inherited shadow radius after taking into account the layer hierarchy. This is the
     // final shadow radius for this layer. If a shadow is specified for a layer, then effective
     // shadow radius is the set shadow radius, otherwise its the parent's shadow radius.
@@ -1212,13 +1090,11 @@
 
     bool findInHierarchy(const sp<Layer>&);
 
-    void setTransformHintLegacy(ui::Transform::RotationFlags);
     void releasePreviousBuffer();
     void resetDrawingStateBufferInfo();
 
     // Transform hint provided to the producer. This must be accessed holding
     // the mStateLock.
-    ui::Transform::RotationFlags mTransformHintLegacy = ui::Transform::ROT_0;
     std::optional<ui::Transform::RotationFlags> mTransformHint = std::nullopt;
 
     ReleaseCallbackId mPreviousReleaseCallbackId = ReleaseCallbackId::INVALID_ID;

diff --git a/services/surfaceflinger/LayerProtoHelper.cpp b/services/surfaceflinger/LayerProtoHelper.cpp
index 0d2987c..885c3d3 100644
--- a/services/surfaceflinger/LayerProtoHelper.cpp
+++ b/services/surfaceflinger/LayerProtoHelper.cpp

@@ -263,7 +263,7 @@
     outRegion.bottom = proto.bottom();
 }
 
-perfetto::protos::LayersProto LayerProtoFromSnapshotGenerator::generate(
+LayerProtoFromSnapshotGenerator& LayerProtoFromSnapshotGenerator::with(
         const frontend::LayerHierarchy& root) {
     mLayersProto.clear_layers();
     mVisitedLayers.clear();
@@ -305,9 +305,40 @@
         }
     }
 
-    mDefaultSnapshots.clear();
-    mChildToRelativeParent.clear();
-    return std::move(mLayersProto);
+    return *this;
+}
+
+LayerProtoFromSnapshotGenerator& LayerProtoFromSnapshotGenerator::withOffscreenLayers(
+        const frontend::LayerHierarchy& offscreenRoot) {
+    // Add a fake invisible root layer to the proto output and parent all the offscreen layers to
+    // it.
+    perfetto::protos::LayerProto* rootProto = mLayersProto.add_layers();
+    const int32_t offscreenRootLayerId = INT32_MAX - 2;
+    rootProto->set_id(offscreenRootLayerId);
+    rootProto->set_name("Offscreen Root");
+    rootProto->set_parent(-1);
+
+    perfetto::protos::LayersProto offscreenLayers =
+            LayerProtoFromSnapshotGenerator(mSnapshotBuilder, mDisplayInfos, mLegacyLayers,
+                                            mTraceFlags)
+                    .with(offscreenRoot)
+                    .generate();
+
+    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());
+        }
+    }
+
+    mLayersProto.mutable_layers()->Reserve(mLayersProto.layers_size() +
+                                           offscreenLayers.layers_size());
+    std::copy(offscreenLayers.layers().begin(), offscreenLayers.layers().end(),
+              RepeatedFieldBackInserter(mLayersProto.mutable_layers()));
+
+    return *this;
 }
 
 frontend::LayerSnapshot* LayerProtoFromSnapshotGenerator::getSnapshot(

diff --git a/services/surfaceflinger/LayerProtoHelper.h b/services/surfaceflinger/LayerProtoHelper.h
index d672012..c0198b6 100644
--- a/services/surfaceflinger/LayerProtoHelper.h
+++ b/services/surfaceflinger/LayerProtoHelper.h

@@ -88,7 +88,12 @@
             mLegacyLayers(legacyLayers),
             mDisplayInfos(displayInfos),
             mTraceFlags(traceFlags) {}
-    perfetto::protos::LayersProto generate(const frontend::LayerHierarchy& root);
+    LayerProtoFromSnapshotGenerator& with(const frontend::LayerHierarchy& root);
+    // Creates a fake root and adds all offscreen layers from the passed in hierarchy to the fake
+    // root
+    LayerProtoFromSnapshotGenerator& withOffscreenLayers(
+            const frontend::LayerHierarchy& offscreenRoot);
+    perfetto::protos::LayersProto generate() { return mLayersProto; };
 
 private:
     void writeHierarchyToProto(const frontend::LayerHierarchy& root,

diff --git a/services/surfaceflinger/LayerVector.cpp b/services/surfaceflinger/LayerVector.cpp
index f52e60d..ff0a955 100644
--- a/services/surfaceflinger/LayerVector.cpp
+++ b/services/surfaceflinger/LayerVector.cpp

@@ -61,35 +61,6 @@
     return (l->sequence > r->sequence) ? 1 : -1;
 }
 
-void LayerVector::traverseInZOrder(StateSet stateSet, const Visitor& visitor) const {
-    for (size_t i = 0; i < size(); i++) {
-        const auto& layer = (*this)[i];
-        auto& state = layer->getDrawingState();
-        if (state.isRelativeOf) {
-            continue;
-        }
-        layer->traverseInZOrder(stateSet, visitor);
-    }
-}
-
-void LayerVector::traverseInReverseZOrder(StateSet stateSet, const Visitor& visitor) const {
-    for (auto i = static_cast<int64_t>(size()) - 1; i >= 0; i--) {
-        const auto& layer = (*this)[i];
-        auto& state = layer->getDrawingState();
-        if (state.isRelativeOf) {
-            continue;
-        }
-        layer->traverseInReverseZOrder(stateSet, visitor);
-     }
-}
-
-void LayerVector::traverse(const Visitor& visitor) const {
-    for (auto i = static_cast<int64_t>(size()) - 1; i >= 0; i--) {
-        const auto& layer = (*this)[i];
-        layer->traverse(mStateSet, visitor);
-    }
-}
-
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues

diff --git a/services/surfaceflinger/LayerVector.h b/services/surfaceflinger/LayerVector.h
index a531f4f..38dc11d 100644
--- a/services/surfaceflinger/LayerVector.h
+++ b/services/surfaceflinger/LayerVector.h

@@ -46,11 +46,8 @@
 
     // Sorts layer by layer-stack, Z order, and finally creation order (sequence).
     int do_compare(const void* lhs, const void* rhs) const override;
-
     using Visitor = std::function<void(Layer*)>;
-    void traverseInReverseZOrder(StateSet stateSet, const Visitor& visitor) const;
-    void traverseInZOrder(StateSet stateSet, const Visitor& visitor) const;
-    void traverse(const Visitor& visitor) const;
+
 private:
     const StateSet mStateSet;
 };

diff --git a/services/surfaceflinger/Scheduler/LayerInfo.cpp b/services/surfaceflinger/Scheduler/LayerInfo.cpp
index a1a60e3..dbc458c 100644
--- a/services/surfaceflinger/Scheduler/LayerInfo.cpp
+++ b/services/surfaceflinger/Scheduler/LayerInfo.cpp

@@ -595,6 +595,12 @@
         return true;
     }
 
+    if (FlagManager::getInstance().view_set_requested_frame_rate_mrr() &&
+        category == FrameRateCategory::NoPreference && vote.rate.isValid() &&
+        vote.type == FrameRateCompatibility::ExactOrMultiple) {
+        return true;
+    }
+
     return false;
 }
 

diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 727541e..be00079 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp

@@ -122,6 +122,12 @@
 
     demotePacesetterDisplay(kPromotionParams);
     promotePacesetterDisplay(pacesetterId, kPromotionParams);
+
+    // Cancel the pending refresh rate change, if any, before updating the phase configuration.
+    mVsyncModulator->cancelRefreshRateChange();
+
+    mVsyncConfiguration->reset();
+    updatePhaseConfiguration(pacesetterId, pacesetterSelectorPtr()->getActiveMode().fps);
 }
 
 void Scheduler::registerDisplay(PhysicalDisplayId displayId, RefreshRateSelectorPtr selectorPtr,
@@ -481,21 +487,18 @@
     }
 }
 
-void Scheduler::updatePhaseConfiguration(Fps refreshRate) {
+void Scheduler::updatePhaseConfiguration(PhysicalDisplayId displayId, Fps refreshRate) {
+    const bool isPacesetter =
+            FTL_FAKE_GUARD(kMainThreadContext,
+                           (std::scoped_lock(mDisplayLock), displayId == mPacesetterDisplayId));
+    if (!isPacesetter) return;
+
     mRefreshRateStats->setRefreshRate(refreshRate);
     mVsyncConfiguration->setRefreshRateFps(refreshRate);
     setVsyncConfig(mVsyncModulator->setVsyncConfigSet(mVsyncConfiguration->getCurrentConfigs()),
                    refreshRate.getPeriod());
 }
 
-void Scheduler::resetPhaseConfiguration(Fps refreshRate) {
-    // Cancel the pending refresh rate change, if any, before updating the phase configuration.
-    mVsyncModulator->cancelRefreshRateChange();
-
-    mVsyncConfiguration->reset();
-    updatePhaseConfiguration(refreshRate);
-}
-
 void Scheduler::setActiveDisplayPowerModeForRefreshRateStats(hal::PowerMode powerMode) {
     mRefreshRateStats->setPowerMode(powerMode);
 }

diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 9b32fa9..1367ec3 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h

@@ -187,8 +187,7 @@
         }
     }
 
-    void updatePhaseConfiguration(Fps);
-    void resetPhaseConfiguration(Fps) REQUIRES(kMainThreadContext);
+    void updatePhaseConfiguration(PhysicalDisplayId, Fps);
 
     const VsyncConfiguration& getVsyncConfiguration() const { return *mVsyncConfiguration; }
 

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 9be9fee..f4bff8f 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp

@@ -40,6 +40,7 @@
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/PermissionCache.h>
+#include <com_android_graphics_libgui_flags.h>
 #include <com_android_graphics_surfaceflinger_flags.h>
 #include <common/FlagManager.h>
 #include <common/trace.h>
@@ -64,7 +65,7 @@
 #include <ftl/fake_guard.h>
 #include <ftl/future.h>
 #include <ftl/unit.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/BufferQueue.h>
 #include <gui/DebugEGLImageTracker.h>
 #include <gui/IProducerListener.h>
@@ -1279,20 +1280,14 @@
         return BAD_VALUE;
     }
 
+    // TODO: b/277364366 - Require a display token from clients and remove fallback to pacesetter.
     std::optional<PhysicalDisplayId> displayIdOpt;
-    {
+    if (displayToken) {
         Mutex::Autolock lock(mStateLock);
-        if (displayToken) {
-            displayIdOpt = getPhysicalDisplayIdLocked(displayToken);
-            if (!displayIdOpt) {
-                ALOGW("%s: Invalid physical display token %p", __func__, displayToken.get());
-                return NAME_NOT_FOUND;
-            }
-        } else {
-            // TODO (b/277364366): Clients should be updated to pass in the display they
-            // want, rather than us picking an arbitrary one (the active display, in this
-            // case).
-            displayIdOpt = mActiveDisplayId;
+        displayIdOpt = getPhysicalDisplayIdLocked(displayToken);
+        if (!displayIdOpt) {
+            ALOGW("%s: Invalid physical display token %p", __func__, displayToken.get());
+            return NAME_NOT_FOUND;
         }
     }
 
@@ -1339,19 +1334,13 @@
             // VsyncController model is locked.
             mScheduler->modulateVsync(displayId, &VsyncModulator::onRefreshRateChangeInitiated);
 
-            if (displayId == mActiveDisplayId) {
-                mScheduler->updatePhaseConfiguration(mode.fps);
-            }
-
+            mScheduler->updatePhaseConfiguration(displayId, mode.fps);
             mScheduler->setModeChangePending(true);
             break;
         }
         case DesiredModeAction::InitiateRenderRateSwitch:
             mScheduler->setRenderRate(displayId, mode.fps, /*applyImmediately*/ false);
-
-            if (displayId == mActiveDisplayId) {
-                mScheduler->updatePhaseConfiguration(mode.fps);
-            }
+            mScheduler->updatePhaseConfiguration(displayId, mode.fps);
 
             if (emitEvent) {
                 mScheduler->onDisplayModeChanged(displayId, mode);
@@ -1446,9 +1435,7 @@
     mDisplayModeController.finalizeModeChange(displayId, activeMode.modePtr->getId(),
                                               activeMode.modePtr->getVsyncRate(), activeMode.fps);
 
-    if (displayId == mActiveDisplayId) {
-        mScheduler->updatePhaseConfiguration(activeMode.fps);
-    }
+    mScheduler->updatePhaseConfiguration(displayId, activeMode.fps);
 
     if (pendingModeOpt->emitEvent) {
         mScheduler->onDisplayModeChanged(displayId, activeMode);
@@ -1472,11 +1459,9 @@
 
     constexpr bool kAllowToEnable = true;
     mScheduler->resyncToHardwareVsync(displayId, kAllowToEnable, std::move(activeModePtr).take());
-    mScheduler->setRenderRate(displayId, renderFps, /*applyImmediately*/ true);
 
-    if (displayId == mActiveDisplayId) {
-        mScheduler->updatePhaseConfiguration(renderFps);
-    }
+    mScheduler->setRenderRate(displayId, renderFps, /*applyImmediately*/ true);
+    mScheduler->updatePhaseConfiguration(displayId, renderFps);
 }
 
 void SurfaceFlinger::initiateDisplayModeChanges() {
@@ -2386,7 +2371,7 @@
         {
             // TODO(b/238781169) lockless queue this and keep order.
             std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-            update.layerCreatedStates = std::move(mCreatedLayers);
+            update.legacyLayers = std::move(mCreatedLayers);
             mCreatedLayers.clear();
             update.newLayers = std::move(mNewLayers);
             mNewLayers.clear();
@@ -2405,11 +2390,8 @@
         }
         mLayerLifecycleManager.applyTransactions(update.transactions);
         mLayerLifecycleManager.onHandlesDestroyed(update.destroyedHandles);
-        for (auto& legacyLayer : update.layerCreatedStates) {
-            sp<Layer> layer = legacyLayer.layer.promote();
-            if (layer) {
-                mLegacyLayers[layer->sequence] = layer;
-            }
+        for (auto& legacyLayer : update.legacyLayers) {
+            mLegacyLayers[legacyLayer->sequence] = legacyLayer;
         }
         mLayerHierarchyBuilder.update(mLayerLifecycleManager);
     }
@@ -2520,12 +2502,18 @@
     }
 
     updateLayerHistory(latchTime);
-    mLayerSnapshotBuilder.forEachVisibleSnapshot([&](const frontend::LayerSnapshot& snapshot) {
-        if (mLayersIdsWithQueuedFrames.find(snapshot.path.id) == mLayersIdsWithQueuedFrames.end())
-            return;
-        Region visibleReg;
-        visibleReg.set(snapshot.transformedBoundsWithoutTransparentRegion);
-        invalidateLayerStack(snapshot.outputFilter, visibleReg);
+    mLayerSnapshotBuilder.forEachSnapshot([&](const frontend::LayerSnapshot& snapshot) {
+        // update output dirty region if we have a queued buffer that is visible or a snapshot
+        // recently became invisible
+        // TODO(b/360050020) investigate if we need to update dirty region when layer color changes
+        if ((snapshot.isVisible &&
+             (mLayersIdsWithQueuedFrames.find(snapshot.path.id) !=
+              mLayersIdsWithQueuedFrames.end())) ||
+            (!snapshot.isVisible && snapshot.changes.test(Changes::Visibility))) {
+            Region visibleReg;
+            visibleReg.set(snapshot.transformedBoundsWithoutTransparentRegion);
+            invalidateLayerStack(snapshot.outputFilter, visibleReg);
+        }
     });
 
     for (auto& destroyedLayer : mLayerLifecycleManager.getDestroyedLayers()) {
@@ -2857,9 +2845,7 @@
         for (auto [layer, layerFE] : layers) {
             CompositionResult compositionResult{layerFE->stealCompositionResult()};
             for (auto& [releaseFence, layerStack] : compositionResult.releaseFences) {
-                Layer* clonedFrom = layer->getClonedFrom().get();
-                auto owningLayer = clonedFrom ? clonedFrom : layer;
-                owningLayer->onLayerDisplayed(std::move(releaseFence), layerStack);
+                layer->onLayerDisplayed(std::move(releaseFence), layerStack);
             }
             if (compositionResult.lastClientCompositionFence) {
                 layer->setWasClientComposed(compositionResult.lastClientCompositionFence);
@@ -3722,11 +3708,20 @@
                  state.surface.get());
         const auto displayId = PhysicalDisplayId::tryCast(compositionDisplay->getId());
         LOG_FATAL_IF(!displayId);
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        const auto frameBufferSurface =
+                sp<FramebufferSurface>::make(getHwComposer(), *displayId, bqProducer, bqConsumer,
+                                             state.physical->activeMode->getResolution(),
+                                             ui::Size(maxGraphicsWidth, maxGraphicsHeight));
+        displaySurface = frameBufferSurface;
+        producer = frameBufferSurface->getSurface()->getIGraphicBufferProducer();
+#else
         displaySurface =
                 sp<FramebufferSurface>::make(getHwComposer(), *displayId, bqConsumer,
                                              state.physical->activeMode->getResolution(),
                                              ui::Size(maxGraphicsWidth, maxGraphicsHeight));
         producer = bqProducer;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     }
 
     LOG_FATAL_IF(!displaySurface);
@@ -3830,11 +3825,8 @@
                 setPowerModeInternal(display, hal::PowerMode::ON);
             }
 
-            // TODO(b/175678251) Call a listener instead.
-            if (currentState.physical->hwcDisplayId == getHwComposer().getPrimaryHwcDisplayId()) {
-                const Fps refreshRate =
-                        mDisplayModeController.getActiveMode(display->getPhysicalId()).fps;
-                mScheduler->resetPhaseConfiguration(refreshRate);
+            if (display->getPhysicalId() == mActiveDisplayId) {
+                onActiveDisplayChangedLocked(nullptr, *display);
             }
         }
         return;
@@ -3926,51 +3918,6 @@
         mUpdateInputInfo = true;
     }
 
-    // Update transform hint.
-    if (transactionFlags & (eTransformHintUpdateNeeded | eDisplayTransactionNeeded)) {
-        // Layers and/or displays have changed, so update the transform hint for each layer.
-        //
-        // NOTE: we do this here, rather than when presenting the display so that
-        // the hint is set before we acquire a buffer from the surface texture.
-        //
-        // NOTE: layer transactions have taken place already, so we use their
-        // drawing state. However, SurfaceFlinger's own transaction has not
-        // happened yet, so we must use the current state layer list
-        // (soon to become the drawing state list).
-        //
-        sp<const DisplayDevice> hintDisplay;
-        ui::LayerStack layerStack;
-
-        mCurrentState.traverse([&](Layer* layer) REQUIRES(mStateLock) {
-            // NOTE: we rely on the fact that layers are sorted by
-            // layerStack first (so we don't have to traverse the list
-            // of displays for every layer).
-            if (const auto filter = layer->getOutputFilter(); layerStack != filter.layerStack) {
-                layerStack = filter.layerStack;
-                hintDisplay = nullptr;
-
-                // Find the display that includes the layer.
-                for (const auto& [token, display] : mDisplays) {
-                    if (!display->getCompositionDisplay()->includesLayer(filter)) {
-                        continue;
-                    }
-
-                    // Pick the primary display if another display mirrors the layer.
-                    if (hintDisplay) {
-                        hintDisplay = nullptr;
-                        break;
-                    }
-
-                    hintDisplay = display;
-                }
-            }
-
-            if (hintDisplay) {
-                layer->updateTransformHint(hintDisplay->getTransformHint());
-            }
-        });
-    }
-
     if (mLayersAdded) {
         mLayersAdded = false;
         // Layers have been added.
@@ -3984,14 +3931,6 @@
         mLayersRemoved = false;
         mVisibleRegionsDirty = true;
         mUpdateInputInfo = true;
-        mDrawingState.traverseInZOrder([&](Layer* layer) {
-            if (mLayersPendingRemoval.indexOf(sp<Layer>::fromExisting(layer)) >= 0) {
-                // this layer is not visible anymore
-                Region visibleReg;
-                visibleReg.set(layer->getScreenBounds());
-                invalidateLayerStack(layer->getOutputFilter(), visibleReg);
-            }
-        });
     }
 
     if (transactionFlags & eInputInfoUpdateNeeded) {
@@ -4392,74 +4331,8 @@
 
 void SurfaceFlinger::doCommitTransactions() {
     SFTRACE_CALL();
-
-    if (!mLayersPendingRemoval.isEmpty()) {
-        // Notify removed layers now that they can't be drawn from
-        for (const auto& l : mLayersPendingRemoval) {
-            // Ensure any buffers set to display on any children are released.
-            if (l->isRemovedFromCurrentState()) {
-                l->latchAndReleaseBuffer();
-            }
-
-            // If a layer has a parent, we allow it to out-live it's handle
-            // with the idea that the parent holds a reference and will eventually
-            // be cleaned up. However no one cleans up the top-level so we do so
-            // here.
-            if (l->isAtRoot()) {
-                l->setIsAtRoot(false);
-                mCurrentState.layersSortedByZ.remove(l);
-            }
-
-            // If the layer has been removed and has no parent, then it will not be reachable
-            // when traversing layers on screen. Add the layer to the offscreenLayers set to
-            // ensure we can copy its current to drawing state.
-            if (!l->getParent()) {
-                mOffscreenLayers.emplace(l.get());
-            }
-        }
-        mLayersPendingRemoval.clear();
-    }
-
     mDrawingState = mCurrentState;
     mCurrentState.colorMatrixChanged = false;
-
-    if (mVisibleRegionsDirty) {
-        for (const auto& rootLayer : mDrawingState.layersSortedByZ) {
-            rootLayer->commitChildList();
-        }
-    }
-
-    commitOffscreenLayers();
-    if (mLayerMirrorRoots.size() > 0) {
-        std::deque<Layer*> pendingUpdates;
-        pendingUpdates.insert(pendingUpdates.end(), mLayerMirrorRoots.begin(),
-                              mLayerMirrorRoots.end());
-        std::vector<Layer*> needsUpdating;
-        for (Layer* cloneRoot : mLayerMirrorRoots) {
-            pendingUpdates.pop_front();
-            if (cloneRoot->isRemovedFromCurrentState()) {
-                continue;
-            }
-            if (cloneRoot->updateMirrorInfo(pendingUpdates)) {
-            } else {
-                needsUpdating.push_back(cloneRoot);
-            }
-        }
-        for (Layer* cloneRoot : needsUpdating) {
-            cloneRoot->updateMirrorInfo({});
-        }
-    }
-}
-
-void SurfaceFlinger::commitOffscreenLayers() {
-    for (Layer* offscreenLayer : mOffscreenLayers) {
-        offscreenLayer->traverse(LayerVector::StateSet::Drawing, [](Layer* layer) {
-            if (layer->clearTransactionFlags(eTransactionNeeded)) {
-                layer->doTransaction(0);
-                layer->commitChildList();
-            }
-        });
-    }
 }
 
 void SurfaceFlinger::invalidateLayerStack(const ui::LayerFilter& layerFilter, const Region& dirty) {
@@ -4475,65 +4348,26 @@
                                         const sp<Layer>& layer, const wp<Layer>& parent,
                                         uint32_t* outTransformHint) {
     if (mNumLayers >= MAX_LAYERS) {
+        static std::atomic<nsecs_t> lasttime{0};
+        nsecs_t now = systemTime();
+        if (lasttime != 0 && ns2s(now - lasttime.load()) < 10) {
+            ALOGE("AddClientLayer already dumped 10s before");
+            return NO_MEMORY;
+        } else {
+            lasttime = now;
+        }
+
         ALOGE("AddClientLayer failed, mNumLayers (%zu) >= MAX_LAYERS (%zu)", mNumLayers.load(),
               MAX_LAYERS);
-        static_cast<void>(mScheduler->schedule([=, this] {
-            ALOGE("Dumping layer keeping > 20 children alive:");
-            bool leakingParentLayerFound = false;
-            mDrawingState.traverse([&](Layer* layer) {
-                if (leakingParentLayerFound) {
-                    return;
-                }
-                if (layer->getChildrenCount() > 20) {
-                    leakingParentLayerFound = true;
-                    sp<Layer> parent = sp<Layer>::fromExisting(layer);
-                    while (parent) {
-                        ALOGE("Parent Layer: %s%s", parent->getName().c_str(),
-                              (parent->isHandleAlive() ? "handleAlive" : ""));
-                        parent = parent->getParent();
-                    }
-                    // Sample up to 100 layers
-                    ALOGE("Dumping random sampling of child layers total(%zu): ",
-                          layer->getChildrenCount());
-                    int sampleSize = (layer->getChildrenCount() / 100) + 1;
-                    layer->traverseChildren([&](Layer* layer) {
-                        if (rand() % sampleSize == 0) {
-                            ALOGE("Child Layer: %s%s", layer->getName().c_str(),
-                                  (layer->isHandleAlive() ? "handleAlive" : ""));
-                        }
-                    });
-                }
-            });
-
-            int numLayers = 0;
-            mDrawingState.traverse([&](Layer* layer) { numLayers++; });
-
-            ALOGE("Dumping random sampling of on-screen layers total(%u):", numLayers);
-            mDrawingState.traverse([&](Layer* layer) {
-                // Aim to dump about 200 layers to avoid totally trashing
-                // logcat. On the other hand, if there really are 4096 layers
-                // something has gone totally wrong its probably the most
-                // useful information in logcat.
-                if (rand() % 20 == 13) {
-                    ALOGE("Layer: %s%s", layer->getName().c_str(),
-                          (layer->isHandleAlive() ? "handleAlive" : ""));
-                    std::this_thread::sleep_for(std::chrono::milliseconds(5));
-                }
-            });
-            ALOGE("Dumping random sampling of off-screen layers total(%zu): ",
-                  mOffscreenLayers.size());
-            for (Layer* offscreenLayer : mOffscreenLayers) {
-                if (rand() % 20 == 13) {
-                    ALOGE("Offscreen-layer: %s%s", offscreenLayer->getName().c_str(),
-                          (offscreenLayer->isHandleAlive() ? "handleAlive" : ""));
-                    std::this_thread::sleep_for(std::chrono::milliseconds(5));
-                }
-            }
+        static_cast<void>(mScheduler->schedule([&]() FTL_FAKE_GUARD(kMainThreadContext) {
+            ALOGE("Dumping on-screen layers.");
+            mLayerHierarchyBuilder.dumpLayerSample(mLayerHierarchyBuilder.getHierarchy());
+            ALOGE("Dumping off-screen layers.");
+            mLayerHierarchyBuilder.dumpLayerSample(mLayerHierarchyBuilder.getOffscreenHierarchy());
         }));
         return NO_MEMORY;
     }
 
-    layer->updateTransformHint(mActiveDisplayTransformHint);
     if (outTransformHint) {
         *outTransformHint = mActiveDisplayTransformHint;
     }
@@ -4541,7 +4375,7 @@
     args.layerIdToMirror = LayerHandle::getLayerId(args.mirrorLayerHandle.promote());
     {
         std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-        mCreatedLayers.emplace_back(layer, parent, args.addToRoot);
+        mCreatedLayers.emplace_back(layer);
         mNewLayers.emplace_back(std::make_unique<frontend::RequestedLayerState>(args));
         args.mirrorLayerHandle.clear();
         args.parentHandle.clear();
@@ -5229,6 +5063,10 @@
         }
     }
 
+    if (what & layer_state_t::eBufferReleaseChannelChanged) {
+        layer->setBufferReleaseChannel(s.bufferReleaseChannel);
+    }
+
     const auto& requestedLayerState = mLayerLifecycleManager.getLayerFromId(layer->getSequence());
     bool willPresentCurrentTransaction = requestedLayerState &&
             (requestedLayerState->hasReadyFrame() ||
@@ -5267,8 +5105,6 @@
         if (result != NO_ERROR) {
             return result;
         }
-
-        mirrorLayer->setClonedChild(mirrorFrom->createClone());
     }
 
     outResult.layerId = mirrorLayer->sequence;
@@ -5382,33 +5218,22 @@
     return NO_ERROR;
 }
 
-void SurfaceFlinger::markLayerPendingRemovalLocked(const sp<Layer>& layer) {
-    mLayersPendingRemoval.add(layer);
-    mLayersRemoved = true;
-    setTransactionFlags(eTransactionNeeded);
-}
-
 void SurfaceFlinger::onHandleDestroyed(BBinder* handle, sp<Layer>& layer, uint32_t layerId) {
     {
-        std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
-        mDestroyedHandles.emplace_back(layerId, layer->getDebugName());
-    }
-
-    {
         // Used to remove stalled transactions which uses an internal lock.
         ftl::FakeGuard guard(kMainThreadContext);
         mTransactionHandler.onLayerDestroyed(layerId);
     }
-
     JankTracker::flushJankData(layerId);
 
-    Mutex::Autolock lock(mStateLock);
-    markLayerPendingRemovalLocked(layer);
+    std::scoped_lock<std::mutex> lock(mCreatedLayersLock);
+    mDestroyedHandles.emplace_back(layerId, layer->getDebugName());
+
+    Mutex::Autolock stateLock(mStateLock);
     layer->onHandleDestroyed();
     mBufferCountTracker.remove(handle);
     layer.clear();
-
-    setTransactionFlags(eTransactionFlushNeeded);
+    setTransactionFlags(eTransactionFlushNeeded | eTransactionNeeded);
 }
 
 void SurfaceFlinger::initializeDisplays() {
@@ -5748,7 +5573,7 @@
     sTimestamp = now;
 
     SFTRACE_CALL();
-    mDrawingState.traverse([&](Layer* layer) { layer->logFrameStats(); });
+    traverseLegacyLayers([&](Layer* layer) { layer->logFrameStats(); });
 }
 
 void SurfaceFlinger::appendSfConfigString(std::string& result) const {
@@ -5977,9 +5802,16 @@
         }
     }
 
-    return LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
-                                           mLegacyLayers, traceFlags)
-            .generate(mLayerHierarchyBuilder.getHierarchy());
+    auto traceGenerator =
+            LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
+                                            mLegacyLayers, traceFlags)
+                    .with(mLayerHierarchyBuilder.getHierarchy());
+
+    if (traceFlags & LayerTracing::Flag::TRACE_EXTRA) {
+        traceGenerator.withOffscreenLayers(mLayerHierarchyBuilder.getOffscreenHierarchy());
+    }
+
+    return traceGenerator.generate();
 }
 
 google::protobuf::RepeatedPtrField<perfetto::protos::DisplayProto>
@@ -6013,36 +5845,6 @@
     getHwComposer().dump(result);
 }
 
-void SurfaceFlinger::dumpOffscreenLayersProto(perfetto::protos::LayersProto& layersProto,
-                                              uint32_t traceFlags) const {
-    // Add a fake invisible root layer to the proto output and parent all the offscreen layers to
-    // it.
-    perfetto::protos::LayerProto* rootProto = layersProto.add_layers();
-    const int32_t offscreenRootLayerId = INT32_MAX - 2;
-    rootProto->set_id(offscreenRootLayerId);
-    rootProto->set_name("Offscreen Root");
-    rootProto->set_parent(-1);
-
-    perfetto::protos::LayersProto offscreenLayers =
-            LayerProtoFromSnapshotGenerator(mLayerSnapshotBuilder, mFrontEndDisplayInfos,
-                                            mLegacyLayers, traceFlags)
-                    .generate(mLayerHierarchyBuilder.getOffscreenHierarchy());
-
-    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) {
     return mScheduler
             ->schedule([=, this]() FTL_FAKE_GUARD(kMainThreadContext) {
@@ -6051,20 +5853,6 @@
             .get();
 }
 
-void SurfaceFlinger::dumpOffscreenLayers(std::string& result) {
-    auto future = mScheduler->schedule([this] {
-        std::string result;
-        for (Layer* offscreenLayer : mOffscreenLayers) {
-            offscreenLayer->traverse(LayerVector::StateSet::Drawing,
-                                     [&](Layer* layer) { layer->dumpOffscreenDebugInfo(result); });
-        }
-        return result;
-    });
-
-    result.append("Offscreen Layers:\n");
-    result.append(future.get());
-}
-
 void SurfaceFlinger::dumpHwcLayersMinidump(std::string& result) const {
     for (const auto& [token, display] : mDisplays) {
         const auto displayId = HalDisplayId::tryCast(display->getId());
@@ -7010,7 +6798,8 @@
     IPCThreadState* ipc = IPCThreadState::self();
     const int pid = ipc->getCallingPid();
     const int uid = ipc->getCallingUid();
-    if (uid == AID_GRAPHICS || PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) {
+    if (uid == AID_GRAPHICS || uid == AID_SYSTEM ||
+        PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) {
         return OK;
     }
 
@@ -7105,7 +6894,8 @@
                                     const sp<IScreenCaptureListener>& captureListener) {
     SFTRACE_CALL();
 
-    status_t validate = validateScreenshotPermissions(args);
+    const auto& captureArgs = args.captureArgs;
+    status_t validate = validateScreenshotPermissions(captureArgs);
     if (validate != OK) {
         ALOGD("Permission denied to captureDisplay");
         invokeScreenCaptureError(validate, captureListener);
@@ -7118,7 +6908,7 @@
         return;
     }
 
-    if (args.captureSecureLayers && !hasCaptureBlackoutContentPermission()) {
+    if (captureArgs.captureSecureLayers && !hasCaptureBlackoutContentPermission()) {
         ALOGD("Attempting to capture secure layers without CAPTURE_BLACKOUT_CONTENT");
         invokeScreenCaptureError(PERMISSION_DENIED, captureListener);
         return;
@@ -7144,7 +6934,7 @@
             reqSize = display->getLayerStackSpaceRect().getSize();
         }
 
-        for (const auto& handle : args.excludeHandles) {
+        for (const auto& handle : captureArgs.excludeHandles) {
             uint32_t excludeLayer = LayerHandle::getLayerId(handle);
             if (excludeLayer != UNASSIGNED_LAYER_ID) {
                 excludeLayerIds.emplace(excludeLayer);
@@ -7157,17 +6947,21 @@
     }
 
     GetLayerSnapshotsFunction getLayerSnapshotsFn =
-            getLayerSnapshotsForScreenshots(layerStack, args.uid, std::move(excludeLayerIds));
+            getLayerSnapshotsForScreenshots(layerStack, captureArgs.uid,
+                                            std::move(excludeLayerIds));
 
     ftl::Flags<RenderArea::Options> options;
-    if (args.captureSecureLayers) options |= RenderArea::Options::CAPTURE_SECURE_LAYERS;
-    if (args.hintForSeamlessTransition)
+    if (captureArgs.captureSecureLayers) options |= RenderArea::Options::CAPTURE_SECURE_LAYERS;
+    if (captureArgs.hintForSeamlessTransition)
         options |= RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION;
     captureScreenCommon(RenderAreaBuilderVariant(std::in_place_type<DisplayRenderAreaBuilder>,
-                                                 args.sourceCrop, reqSize, args.dataspace,
+                                                 gui::aidl_utils::fromARect(captureArgs.sourceCrop),
+                                                 reqSize,
+                                                 static_cast<ui::Dataspace>(captureArgs.dataspace),
                                                  displayWeak, options),
-                        getLayerSnapshotsFn, reqSize, args.pixelFormat, args.allowProtected,
-                        args.grayscale, captureListener);
+                        getLayerSnapshotsFn, reqSize,
+                        static_cast<ui::PixelFormat>(captureArgs.pixelFormat),
+                        captureArgs.allowProtected, captureArgs.grayscale, captureListener);
 }
 
 void SurfaceFlinger::captureDisplay(DisplayId displayId, const CaptureArgs& args,
@@ -7220,10 +7014,11 @@
     if (args.hintForSeamlessTransition)
         options |= RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION;
     captureScreenCommon(RenderAreaBuilderVariant(std::in_place_type<DisplayRenderAreaBuilder>,
-                                                 Rect(), size, args.dataspace, displayWeak,
-                                                 options),
-                        getLayerSnapshotsFn, size, args.pixelFormat, kAllowProtected, kGrayscale,
-                        captureListener);
+                                                 Rect(), size,
+                                                 static_cast<ui::Dataspace>(args.dataspace),
+                                                 displayWeak, options),
+                        getLayerSnapshotsFn, size, static_cast<ui::PixelFormat>(args.pixelFormat),
+                        kAllowProtected, kGrayscale, captureListener);
 }
 
 ScreenCaptureResults SurfaceFlinger::captureLayersSync(const LayerCaptureArgs& args) {
@@ -7236,20 +7031,23 @@
                                    const sp<IScreenCaptureListener>& captureListener) {
     SFTRACE_CALL();
 
-    status_t validate = validateScreenshotPermissions(args);
+    const auto& captureArgs = args.captureArgs;
+
+    status_t validate = validateScreenshotPermissions(captureArgs);
     if (validate != OK) {
         ALOGD("Permission denied to captureLayers");
         invokeScreenCaptureError(validate, captureListener);
         return;
     }
 
+    auto crop = gui::aidl_utils::fromARect(captureArgs.sourceCrop);
+
     ui::Size reqSize;
     sp<Layer> parent;
-    Rect crop(args.sourceCrop);
     std::unordered_set<uint32_t> excludeLayerIds;
-    ui::Dataspace dataspace = args.dataspace;
+    ui::Dataspace dataspace = static_cast<ui::Dataspace>(captureArgs.dataspace);
 
-    if (args.captureSecureLayers && !hasCaptureBlackoutContentPermission()) {
+    if (captureArgs.captureSecureLayers && !hasCaptureBlackoutContentPermission()) {
         ALOGD("Attempting to capture secure layers without CAPTURE_BLACKOUT_CONTENT");
         invokeScreenCaptureError(PERMISSION_DENIED, captureListener);
         return;
@@ -7266,26 +7064,27 @@
         }
 
         Rect parentSourceBounds = parent->getCroppedBufferSize(parent->getDrawingState());
-        if (args.sourceCrop.width() <= 0) {
+        if (crop.width() <= 0) {
             crop.left = 0;
             crop.right = parentSourceBounds.getWidth();
         }
 
-        if (args.sourceCrop.height() <= 0) {
+        if (crop.height() <= 0) {
             crop.top = 0;
             crop.bottom = parentSourceBounds.getHeight();
         }
 
-        if (crop.isEmpty() || args.frameScaleX <= 0.0f || args.frameScaleY <= 0.0f) {
+        if (crop.isEmpty() || captureArgs.frameScaleX <= 0.0f || captureArgs.frameScaleY <= 0.0f) {
             // Error out if the layer has no source bounds (i.e. they are boundless) and a source
             // crop was not specified, or an invalid frame scale was provided.
             ALOGD("Boundless layer, unspecified crop, or invalid frame scale to captureLayers");
             invokeScreenCaptureError(BAD_VALUE, captureListener);
             return;
         }
-        reqSize = ui::Size(crop.width() * args.frameScaleX, crop.height() * args.frameScaleY);
+        reqSize = ui::Size(crop.width() * captureArgs.frameScaleX,
+                           crop.height() * captureArgs.frameScaleY);
 
-        for (const auto& handle : args.excludeHandles) {
+        for (const auto& handle : captureArgs.excludeHandles) {
             uint32_t excludeLayer = LayerHandle::getLayerId(handle);
             if (excludeLayer != UNASSIGNED_LAYER_ID) {
                 excludeLayerIds.emplace(excludeLayer);
@@ -7311,8 +7110,9 @@
     }
 
     GetLayerSnapshotsFunction getLayerSnapshotsFn =
-            getLayerSnapshotsForScreenshots(parent->sequence, args.uid, std::move(excludeLayerIds),
-                                            args.childrenOnly, parentCrop);
+            getLayerSnapshotsForScreenshots(parent->sequence, captureArgs.uid,
+                                            std::move(excludeLayerIds), args.childrenOnly,
+                                            parentCrop);
 
     if (captureListener == nullptr) {
         ALOGD("capture screen must provide a capture listener callback");
@@ -7321,14 +7121,15 @@
     }
 
     ftl::Flags<RenderArea::Options> options;
-    if (args.captureSecureLayers) options |= RenderArea::Options::CAPTURE_SECURE_LAYERS;
-    if (args.hintForSeamlessTransition)
+    if (captureArgs.captureSecureLayers) options |= RenderArea::Options::CAPTURE_SECURE_LAYERS;
+    if (captureArgs.hintForSeamlessTransition)
         options |= RenderArea::Options::HINT_FOR_SEAMLESS_TRANSITION;
     captureScreenCommon(RenderAreaBuilderVariant(std::in_place_type<LayerRenderAreaBuilder>, crop,
                                                  reqSize, dataspace, parent, args.childrenOnly,
                                                  options),
-                        getLayerSnapshotsFn, reqSize, args.pixelFormat, args.allowProtected,
-                        args.grayscale, captureListener);
+                        getLayerSnapshotsFn, reqSize,
+                        static_cast<ui::PixelFormat>(captureArgs.pixelFormat),
+                        captureArgs.allowProtected, captureArgs.grayscale, captureListener);
 }
 
 // Creates a Future release fence for a layer and keeps track of it in a list to
@@ -7337,9 +7138,7 @@
 void SurfaceFlinger::attachReleaseFenceFutureToLayer(Layer* layer, LayerFE* layerFE,
                                                      ui::LayerStack layerStack) {
     ftl::Future<FenceResult> futureFence = layerFE->createReleaseFenceFuture();
-    Layer* clonedFrom = layer->getClonedFrom().get();
-    auto owningLayer = clonedFrom ? clonedFrom : layer;
-    owningLayer->prepareReleaseCallbacks(std::move(futureFence), layerStack);
+    layer->prepareReleaseCallbacks(std::move(futureFence), layerStack);
 }
 
 // Loop over all visible layers to see whether there's any protected layer. A protected layer is
@@ -7807,18 +7606,6 @@
 
 // ---------------------------------------------------------------------------
 
-void SurfaceFlinger::State::traverse(const LayerVector::Visitor& visitor) const {
-    layersSortedByZ.traverse(visitor);
-}
-
-void SurfaceFlinger::State::traverseInZOrder(const LayerVector::Visitor& visitor) const {
-    layersSortedByZ.traverseInZOrder(stateSet, visitor);
-}
-
-void SurfaceFlinger::State::traverseInReverseZOrder(const LayerVector::Visitor& visitor) const {
-    layersSortedByZ.traverseInReverseZOrder(stateSet, visitor);
-}
-
 ftl::Optional<scheduler::FrameRateMode> SurfaceFlinger::getPreferredDisplayMode(
         PhysicalDisplayId displayId, DisplayModeId defaultModeId) const {
     if (const auto schedulerMode = mScheduler->getPreferredDisplayMode();
@@ -7987,17 +7774,12 @@
 
 void SurfaceFlinger::onLayerFirstRef(Layer* layer) {
     mNumLayers++;
-    if (!layer->isRemovedFromCurrentState()) {
-        mScheduler->registerLayer(layer, scheduler::FrameRateCompatibility::Default);
-    }
+    mScheduler->registerLayer(layer, scheduler::FrameRateCompatibility::Default);
 }
 
 void SurfaceFlinger::onLayerDestroyed(Layer* layer) {
     mNumLayers--;
-    removeHierarchyFromOffscreenLayers(layer);
-    if (!layer->isRemovedFromCurrentState()) {
-        mScheduler->deregisterLayer(layer);
-    }
+    mScheduler->deregisterLayer(layer);
     if (mTransactionTracing) {
         mTransactionTracing->onLayerRemoved(layer->getSequence());
     }
@@ -8008,24 +7790,6 @@
     scheduleCommit(FrameHint::kActive);
 }
 
-// WARNING: ONLY CALL THIS FROM LAYER DTOR
-// Here we add children in the current state to offscreen layers and remove the
-// layer itself from the offscreen layer list.  Since
-// this is the dtor, it is safe to access the current state.  This keeps us
-// from dangling children layers such that they are not reachable from the
-// Drawing state nor the offscreen layer list
-// See b/141111965
-void SurfaceFlinger::removeHierarchyFromOffscreenLayers(Layer* layer) {
-    for (auto& child : layer->getCurrentChildren()) {
-        mOffscreenLayers.emplace(child.get());
-    }
-    mOffscreenLayers.erase(layer);
-}
-
-void SurfaceFlinger::removeFromOffscreenLayers(Layer* layer) {
-    mOffscreenLayers.erase(layer);
-}
-
 status_t SurfaceFlinger::setGlobalShadowSettings(const half4& ambientColor, const half4& spotColor,
                                                  float lightPosY, float lightPosZ,
                                                  float lightRadius) {
@@ -8168,51 +7932,6 @@
     return calculateMaxAcquiredBufferCount(refreshRate, presentLatency);
 }
 
-void SurfaceFlinger::handleLayerCreatedLocked(const LayerCreatedState& state, VsyncId vsyncId) {
-    sp<Layer> layer = state.layer.promote();
-    if (!layer) {
-        ALOGD("Layer was destroyed soon after creation %p", state.layer.unsafe_get());
-        return;
-    }
-    MUTEX_ALIAS(mStateLock, layer->mFlinger->mStateLock);
-
-    sp<Layer> parent;
-    bool addToRoot = state.addToRoot;
-    if (state.initialParent != nullptr) {
-        parent = state.initialParent.promote();
-        if (parent == nullptr) {
-            ALOGD("Parent was destroyed soon after creation %p", state.initialParent.unsafe_get());
-            addToRoot = false;
-        }
-    }
-
-    if (parent == nullptr && addToRoot) {
-        layer->setIsAtRoot(true);
-        mCurrentState.layersSortedByZ.add(layer);
-    } else if (parent == nullptr) {
-        layer->onRemovedFromCurrentState();
-    } else if (parent->isRemovedFromCurrentState()) {
-        parent->addChild(layer);
-        layer->onRemovedFromCurrentState();
-    } else {
-        parent->addChild(layer);
-    }
-
-    ui::LayerStack layerStack = layer->getLayerStack(LayerVector::StateSet::Current);
-    sp<const DisplayDevice> hintDisplay;
-    // Find the display that includes the layer.
-    for (const auto& [token, display] : mDisplays) {
-        if (display->getLayerStack() == layerStack) {
-            hintDisplay = display;
-            break;
-        }
-    }
-
-    if (hintDisplay) {
-        layer->updateTransformHint(hintDisplay->getTransformHint());
-    }
-}
-
 void SurfaceFlinger::sample() {
     if (!mLumaSampling || !mRegionSamplingThread) {
         return;
@@ -8255,8 +7974,6 @@
     mActiveDisplayId = activeDisplay.getPhysicalId();
     activeDisplay.getCompositionDisplay()->setLayerCachingTexturePoolEnabled(true);
 
-    mScheduler->resetPhaseConfiguration(mDisplayModeController.getActiveMode(mActiveDisplayId).fps);
-
     // TODO(b/255635711): Check for pending mode changes on other displays.
     mScheduler->setModeChangePending(false);
 
@@ -8582,9 +8299,6 @@
                                             0);
 
     auto layers = dumpDrawingStateProto(traceFlags);
-    if (traceFlags & LayerTracing::Flag::TRACE_EXTRA) {
-        dumpOffscreenLayersProto(layers);
-    }
     *snapshot.mutable_layers() = std::move(layers);
 
     if (traceFlags & LayerTracing::Flag::TRACE_HWC) {

diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 651f2d3..414088e 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h

@@ -292,16 +292,11 @@
     void onLayerDestroyed(Layer*);
     void onLayerUpdate();
 
-    void removeHierarchyFromOffscreenLayers(Layer* layer);
-    void removeFromOffscreenLayers(Layer* layer);
-
     // Called when all clients have released all their references to
     // this layer. The layer may still be kept alive by its parents but
     // the client can no longer modify this layer directly.
     void onHandleDestroyed(BBinder* handle, sp<Layer>& layer, uint32_t layerId);
 
-    std::vector<Layer*> mLayerMirrorRoots;
-
     TransactionCallbackInvoker& getTransactionCallbackInvoker() {
         return mTransactionCallbackInvoker;
     }
@@ -392,11 +387,10 @@
 
     class State {
     public:
-        explicit State(LayerVector::StateSet set) : stateSet(set), layersSortedByZ(set) {}
+        explicit State(LayerVector::StateSet set) : stateSet(set) {}
         State& operator=(const State& other) {
             // We explicitly don't copy stateSet so that, e.g., mDrawingState
             // always uses the Drawing StateSet.
-            layersSortedByZ = other.layersSortedByZ;
             displays = other.displays;
             colorMatrixChanged = other.colorMatrixChanged;
             if (colorMatrixChanged) {
@@ -408,7 +402,6 @@
         }
 
         const LayerVector::StateSet stateSet = LayerVector::StateSet::Invalid;
-        LayerVector layersSortedByZ;
 
         // TODO(b/241285876): Replace deprecated DefaultKeyedVector with ftl::SmallMap.
         DefaultKeyedVector<wp<IBinder>, DisplayDeviceState> displays;
@@ -428,10 +421,6 @@
         mat4 colorMatrix;
 
         ShadowSettings globalShadowSettings;
-
-        void traverse(const LayerVector::Visitor& visitor) const;
-        void traverseInZOrder(const LayerVector::Visitor& visitor) const;
-        void traverseInReverseZOrder(const LayerVector::Visitor& visitor) const;
     };
 
     // Keeps track of pending buffers per layer handle in the transaction queue or current/drawing
@@ -824,8 +813,6 @@
     // Clears and returns the masked bits.
     uint32_t clearTransactionFlags(uint32_t mask);
 
-    void commitOffscreenLayers();
-
     static LatchUnsignaledConfig getLatchUnsignaledConfig();
     bool shouldLatchUnsignaled(const layer_state_t&, size_t numStates, bool firstTransaction) const;
     bool applyTransactionsLocked(std::vector<TransactionState>& transactions, VsyncId)
@@ -852,8 +839,6 @@
     status_t mirrorDisplay(DisplayId displayId, const LayerCreationArgs& args,
                            gui::CreateSurfaceResult& outResult);
 
-    void markLayerPendingRemovalLocked(const sp<Layer>& layer) REQUIRES(mStateLock);
-
     // add a layer to SurfaceFlinger
     status_t addClientLayer(LayerCreationArgs& args, const sp<IBinder>& handle,
                             const sp<Layer>& layer, const wp<Layer>& parentLayer,
@@ -1133,9 +1118,6 @@
 
     perfetto::protos::LayersProto dumpDrawingStateProto(uint32_t traceFlags) const
             REQUIRES(kMainThreadContext);
-    void dumpOffscreenLayersProto(perfetto::protos::LayersProto& layersProto,
-                                  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);
@@ -1147,7 +1129,6 @@
     void dumpHwc(std::string& result) const;
     perfetto::protos::LayersProto dumpProtoFromMainThread(
             uint32_t traceFlags = LayerTracing::TRACE_ALL) EXCLUDES(mStateLock);
-    void dumpOffscreenLayers(std::string& result) EXCLUDES(mStateLock);
     void dumpPlannerInfo(const DumpArgs& args, std::string& result) const REQUIRES(mStateLock);
 
     status_t doDump(int fd, const DumpArgs& args, bool asProto);
@@ -1208,7 +1189,6 @@
     State mCurrentState{LayerVector::StateSet::Current};
     std::atomic<int32_t> mTransactionFlags = 0;
     std::atomic<uint32_t> mUniqueTransactionId = 1;
-    SortedVector<sp<Layer>> mLayersPendingRemoval;
 
     // Buffers that have been discarded by clients and need to be evicted from per-layer caches so
     // the graphics memory can be immediately freed.
@@ -1393,24 +1373,11 @@
     // Flag used to set override desired display mode from backdoor
     bool mDebugDisplayModeSetByBackdoor = false;
 
-    // A set of layers that have no parent so they are not drawn on screen.
-    // Should only be accessed by the main thread.
-    // The Layer pointer is removed from the set when the destructor is called so there shouldn't
-    // be any issues with a raw pointer referencing an invalid object.
-    std::unordered_set<Layer*> mOffscreenLayers;
-
     BufferCountTracker mBufferCountTracker;
 
     std::unordered_map<DisplayId, sp<HdrLayerInfoReporter>> mHdrLayerInfoListeners
             GUARDED_BY(mStateLock);
 
-    mutable std::mutex mCreatedLayersLock;
-
-    // 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);
-    void handleLayerCreatedLocked(const LayerCreatedState&, VsyncId) REQUIRES(mStateLock);
-
     std::atomic<ui::Transform::RotationFlags> mActiveDisplayTransformHint;
 
     // Must only be accessed on the main thread.
@@ -1451,6 +1418,8 @@
     frontend::LayerHierarchyBuilder mLayerHierarchyBuilder GUARDED_BY(kMainThreadContext);
     frontend::LayerSnapshotBuilder mLayerSnapshotBuilder GUARDED_BY(kMainThreadContext);
 
+    mutable std::mutex mCreatedLayersLock;
+    std::vector<sp<Layer>> mCreatedLayers GUARDED_BY(mCreatedLayersLock);
     std::vector<std::pair<uint32_t, std::string>> mDestroyedHandles GUARDED_BY(mCreatedLayersLock);
     std::vector<std::unique_ptr<frontend::RequestedLayerState>> mNewLayers
             GUARDED_BY(mCreatedLayersLock);

diff --git a/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp b/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
index 617ea2c..1dba175 100644
--- a/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
+++ b/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp

@@ -162,7 +162,10 @@
 
         auto layersProto =
                 LayerProtoFromSnapshotGenerator(snapshotBuilder, displayInfos, {}, traceFlags)
-                        .generate(hierarchyBuilder.getHierarchy());
+                        .with(hierarchyBuilder.getHierarchy())
+                        .withOffscreenLayers(hierarchyBuilder.getOffscreenHierarchy())
+                        .generate();
+
         auto displayProtos = LayerProtoHelper::writeDisplayInfoToProto(displayInfos);
         if (!onlyLastEntry || (i == traceFile.entry_size() - 1)) {
             perfetto::protos::LayersSnapshotProto snapshotProto{};

diff --git a/services/surfaceflinger/TransactionCallbackInvoker.cpp b/services/surfaceflinger/TransactionCallbackInvoker.cpp
index 881bf35..c6856ae 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.cpp
+++ b/services/surfaceflinger/TransactionCallbackInvoker.cpp

@@ -149,6 +149,13 @@
                                                     handle->transformHint,
                                                     handle->currentMaxAcquiredBufferCount,
                                                     eventStats, handle->previousReleaseCallbackId);
+        if (handle->bufferReleaseChannel &&
+            handle->previousReleaseCallbackId != ReleaseCallbackId::INVALID_ID) {
+            mBufferReleases.emplace_back(handle->bufferReleaseChannel,
+                                         handle->previousReleaseCallbackId,
+                                         handle->previousReleaseFence,
+                                         handle->currentMaxAcquiredBufferCount);
+        }
     }
     return NO_ERROR;
 }
@@ -158,6 +165,12 @@
 }
 
 void TransactionCallbackInvoker::sendCallbacks(bool onCommitOnly) {
+    for (const auto& bufferRelease : mBufferReleases) {
+        bufferRelease.channel->writeReleaseFence(bufferRelease.callbackId, bufferRelease.fence,
+                                                 bufferRelease.currentMaxAcquiredBufferCount);
+    }
+    mBufferReleases.clear();
+
     // For each listener
     auto completedTransactionsItr = mCompletedTransactions.begin();
     ftl::SmallVector<ListenerStats, 10> listenerStatsToSend;

diff --git a/services/surfaceflinger/TransactionCallbackInvoker.h b/services/surfaceflinger/TransactionCallbackInvoker.h
index 7853a9f..14a7487 100644
--- a/services/surfaceflinger/TransactionCallbackInvoker.h
+++ b/services/surfaceflinger/TransactionCallbackInvoker.h

@@ -16,18 +16,14 @@
 
 #pragma once
 
-#include <condition_variable>
 #include <deque>
-#include <mutex>
 #include <optional>
-#include <queue>
-#include <thread>
 #include <unordered_map>
-#include <unordered_set>
 
 #include <android-base/thread_annotations.h>
 #include <binder/IBinder.h>
 #include <ftl/future.h>
+#include <gui/BufferReleaseChannel.h>
 #include <gui/ITransactionCompletedListener.h>
 #include <ui/Fence.h>
 #include <ui/FenceResult.h>
@@ -59,6 +55,7 @@
     uint64_t frameNumber = 0;
     uint64_t previousFrameNumber = 0;
     ReleaseCallbackId previousReleaseCallbackId = ReleaseCallbackId::INVALID_ID;
+    std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> bufferReleaseChannel;
 };
 
 class TransactionCallbackInvoker {
@@ -86,6 +83,14 @@
     std::unordered_map<sp<IBinder>, std::deque<TransactionStats>, IListenerHash>
         mCompletedTransactions;
 
+    struct BufferRelease {
+        std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint> channel;
+        ReleaseCallbackId callbackId;
+        sp<Fence> fence;
+        uint32_t currentMaxAcquiredBufferCount;
+    };
+    std::vector<BufferRelease> mBufferReleases;
+
     sp<Fence> mPresentFence;
 };
 

diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index a56bb51..8ec908f 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp

@@ -119,6 +119,7 @@
     DUMP_READ_ONLY_FLAG(connected_display);
     DUMP_READ_ONLY_FLAG(enable_small_area_detection);
     DUMP_READ_ONLY_FLAG(frame_rate_category_mrr);
+    DUMP_READ_ONLY_FLAG(view_set_requested_frame_rate_mrr);
     DUMP_READ_ONLY_FLAG(misc1);
     DUMP_READ_ONLY_FLAG(vrr_config);
     DUMP_READ_ONLY_FLAG(hotplug2);
@@ -154,6 +155,7 @@
     DUMP_READ_ONLY_FLAG(force_compile_graphite_renderengine);
     DUMP_READ_ONLY_FLAG(single_hop_screenshot);
     DUMP_READ_ONLY_FLAG(trace_frame_rate_override);
+    DUMP_READ_ONLY_FLAG(true_hdr_screenshots);
 
 #undef DUMP_READ_ONLY_FLAG
 #undef DUMP_SERVER_FLAG
@@ -222,6 +224,8 @@
 FLAG_MANAGER_READ_ONLY_FLAG(connected_display, "")
 FLAG_MANAGER_READ_ONLY_FLAG(enable_small_area_detection, "")
 FLAG_MANAGER_READ_ONLY_FLAG(frame_rate_category_mrr, "debug.sf.frame_rate_category_mrr")
+FLAG_MANAGER_READ_ONLY_FLAG(view_set_requested_frame_rate_mrr,
+                            "debug.sf.view_set_requested_frame_rate_mrr")
 FLAG_MANAGER_READ_ONLY_FLAG(misc1, "")
 FLAG_MANAGER_READ_ONLY_FLAG(vrr_config, "debug.sf.enable_vrr_config")
 FLAG_MANAGER_READ_ONLY_FLAG(hotplug2, "")
@@ -256,6 +260,7 @@
 FLAG_MANAGER_READ_ONLY_FLAG(flush_buffer_slots_to_uncache, "");
 FLAG_MANAGER_READ_ONLY_FLAG(force_compile_graphite_renderengine, "");
 FLAG_MANAGER_READ_ONLY_FLAG(single_hop_screenshot, "");
+FLAG_MANAGER_READ_ONLY_FLAG(true_hdr_screenshots, "debug.sf.true_hdr_screenshots");
 
 /// Trunk stable server flags ///
 FLAG_MANAGER_SERVER_FLAG(refresh_rate_overlay_on_external_display, "")

diff --git a/services/surfaceflinger/common/include/common/FlagManager.h b/services/surfaceflinger/common/include/common/FlagManager.h
index 8799295..473e564 100644
--- a/services/surfaceflinger/common/include/common/FlagManager.h
+++ b/services/surfaceflinger/common/include/common/FlagManager.h

@@ -56,6 +56,7 @@
     /// Trunk stable readonly flags ///
     bool connected_display() const;
     bool frame_rate_category_mrr() const;
+    bool view_set_requested_frame_rate_mrr() const;
     bool enable_small_area_detection() const;
     bool misc1() const;
     bool vrr_config() const;
@@ -92,6 +93,7 @@
     bool force_compile_graphite_renderengine() const;
     bool single_hop_screenshot() const;
     bool trace_frame_rate_override() const;
+    bool true_hdr_screenshots() const;
 
 protected:
     // overridden for unit tests

diff --git a/services/surfaceflinger/surfaceflinger_flags_new.aconfig b/services/surfaceflinger/surfaceflinger_flags_new.aconfig
index 919ec17..0ff846e7 100644
--- a/services/surfaceflinger/surfaceflinger_flags_new.aconfig
+++ b/services/surfaceflinger/surfaceflinger_flags_new.aconfig

@@ -114,6 +114,14 @@
   }
  } # single_hop_screenshot
 
+flag {
+    name: "true_hdr_screenshots"
+    namespace: "core_graphics"
+    description: "Enables screenshotting display content in HDR, sans tone mapping"
+    bug: "329470026"
+    is_fixed_read_only: true
+} # true_hdr_screenshots
+
  flag {
   name: "override_trusted_overlay"
   namespace: "window_surfaces"
@@ -126,6 +134,14 @@
 } # override_trusted_overlay
 
 flag {
+    name: "view_set_requested_frame_rate_mrr"
+    namespace: "core_graphics"
+    description: "Enable to use frame rate category NoPreference with fixed frame rate vote on MRR devices"
+    bug: "352206100"
+    is_fixed_read_only: true
+} # view_set_requested_frame_rate_mrr
+
+flag {
   name: "vrr_bugfix_24q4"
   namespace: "core_graphics"
   description: "bug fixes for VRR"

diff --git a/services/surfaceflinger/tests/BootDisplayMode_test.cpp b/services/surfaceflinger/tests/BootDisplayMode_test.cpp
index 4f41a81..222642f 100644
--- a/services/surfaceflinger/tests/BootDisplayMode_test.cpp
+++ b/services/surfaceflinger/tests/BootDisplayMode_test.cpp

@@ -18,7 +18,7 @@
 
 #include <gtest/gtest.h>
 
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/SurfaceComposerClient.h>
 #include <private/gui/ComposerService.h>
 #include <private/gui/ComposerServiceAIDL.h>

diff --git a/services/surfaceflinger/tests/BufferGenerator.cpp b/services/surfaceflinger/tests/BufferGenerator.cpp
index d74bd55..efab7b8 100644
--- a/services/surfaceflinger/tests/BufferGenerator.cpp
+++ b/services/surfaceflinger/tests/BufferGenerator.cpp

@@ -42,8 +42,13 @@
      * through saved callback. */
     class BufferListener : public ConsumerBase::FrameAvailableListener {
     public:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        BufferListener(sp<BufferItemConsumer> consumer, BufferCallback callback)
+#else
         BufferListener(sp<IGraphicBufferConsumer> consumer, BufferCallback callback)
-              : mConsumer(consumer), mCallback(callback) {}
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+              : mConsumer(consumer), mCallback(callback) {
+        }
 
         void onFrameAvailable(const BufferItem& /*item*/) {
             BufferItem item;
@@ -55,7 +60,11 @@
         }
 
     private:
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        sp<BufferItemConsumer> mConsumer;
+#else
         sp<IGraphicBufferConsumer> mConsumer;
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
         BufferCallback mCallback;
     };
 
@@ -63,6 +72,16 @@
      * queue. */
     void initialize(uint32_t width, uint32_t height, android_pixel_format_t format,
                     BufferCallback callback) {
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        mBufferItemConsumer = sp<BufferItemConsumer>::make(GraphicBuffer::USAGE_HW_TEXTURE);
+        mBufferItemConsumer->setDefaultBufferSize(width, height);
+        mBufferItemConsumer->setDefaultBufferFormat(format);
+
+        mListener = sp<BufferListener>::make(mBufferItemConsumer, callback);
+        mBufferItemConsumer->setFrameAvailableListener(mListener);
+
+        mSurface = mBufferItemConsumer->getSurface();
+#else
         sp<IGraphicBufferProducer> producer;
         sp<IGraphicBufferConsumer> consumer;
         BufferQueue::createBufferQueue(&producer, &consumer);
@@ -77,6 +96,7 @@
         mBufferItemConsumer->setFrameAvailableListener(mListener);
 
         mSurface = sp<Surface>::make(producer, true);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     }
 
     /* Used by Egl manager. The surface is never displayed. */

diff --git a/services/surfaceflinger/tests/Credentials_test.cpp b/services/surfaceflinger/tests/Credentials_test.cpp
index d355e72..e6fed63 100644
--- a/services/surfaceflinger/tests/Credentials_test.cpp
+++ b/services/surfaceflinger/tests/Credentials_test.cpp

@@ -20,7 +20,7 @@
 
 #include <android/gui/ISurfaceComposer.h>
 #include <gtest/gtest.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 #include <private/android_filesystem_config.h>
@@ -280,7 +280,7 @@
     std::function<status_t()> condition = [=, this]() {
         LayerCaptureArgs captureArgs;
         captureArgs.layerHandle = mBGSurfaceControl->getHandle();
-        captureArgs.sourceCrop = {0, 0, 1, 1};
+        captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(0, 0, 1, 1);
 
         ScreenCaptureResults captureResults;
         return ScreenCapture::captureLayers(captureArgs, captureResults);

diff --git a/services/surfaceflinger/tests/LayerState_test.cpp b/services/surfaceflinger/tests/LayerState_test.cpp
index 15a98df..cc57e11 100644
--- a/services/surfaceflinger/tests/LayerState_test.cpp
+++ b/services/surfaceflinger/tests/LayerState_test.cpp

@@ -28,66 +28,6 @@
 
 namespace test {
 
-TEST(LayerStateTest, ParcellingDisplayCaptureArgs) {
-    DisplayCaptureArgs args;
-    args.pixelFormat = ui::PixelFormat::RGB_565;
-    args.sourceCrop = Rect(0, 0, 500, 200);
-    args.frameScaleX = 2;
-    args.frameScaleY = 4;
-    args.captureSecureLayers = true;
-    args.displayToken = sp<BBinder>::make();
-    args.width = 10;
-    args.height = 20;
-    args.grayscale = true;
-
-    Parcel p;
-    args.writeToParcel(&p);
-    p.setDataPosition(0);
-
-    DisplayCaptureArgs args2;
-    args2.readFromParcel(&p);
-
-    ASSERT_EQ(args.pixelFormat, args2.pixelFormat);
-    ASSERT_EQ(args.sourceCrop, args2.sourceCrop);
-    ASSERT_EQ(args.frameScaleX, args2.frameScaleX);
-    ASSERT_EQ(args.frameScaleY, args2.frameScaleY);
-    ASSERT_EQ(args.captureSecureLayers, args2.captureSecureLayers);
-    ASSERT_EQ(args.displayToken, args2.displayToken);
-    ASSERT_EQ(args.width, args2.width);
-    ASSERT_EQ(args.height, args2.height);
-    ASSERT_EQ(args.grayscale, args2.grayscale);
-}
-
-TEST(LayerStateTest, ParcellingLayerCaptureArgs) {
-    LayerCaptureArgs args;
-    args.pixelFormat = ui::PixelFormat::RGB_565;
-    args.sourceCrop = Rect(0, 0, 500, 200);
-    args.frameScaleX = 2;
-    args.frameScaleY = 4;
-    args.captureSecureLayers = true;
-    args.layerHandle = sp<BBinder>::make();
-    args.excludeHandles = {sp<BBinder>::make(), sp<BBinder>::make()};
-    args.childrenOnly = false;
-    args.grayscale = true;
-
-    Parcel p;
-    args.writeToParcel(&p);
-    p.setDataPosition(0);
-
-    LayerCaptureArgs args2;
-    args2.readFromParcel(&p);
-
-    ASSERT_EQ(args.pixelFormat, args2.pixelFormat);
-    ASSERT_EQ(args.sourceCrop, args2.sourceCrop);
-    ASSERT_EQ(args.frameScaleX, args2.frameScaleX);
-    ASSERT_EQ(args.frameScaleY, args2.frameScaleY);
-    ASSERT_EQ(args.captureSecureLayers, args2.captureSecureLayers);
-    ASSERT_EQ(args.layerHandle, args2.layerHandle);
-    ASSERT_EQ(args.excludeHandles, args2.excludeHandles);
-    ASSERT_EQ(args.childrenOnly, args2.childrenOnly);
-    ASSERT_EQ(args.grayscale, args2.grayscale);
-}
-
 TEST(LayerStateTest, ParcellingScreenCaptureResultsWithFence) {
     ScreenCaptureResults results;
     results.buffer = sp<GraphicBuffer>::make(100u, 200u, PIXEL_FORMAT_RGBA_8888, 1u, 0u);

diff --git a/services/surfaceflinger/tests/LayerTransactionTest.h b/services/surfaceflinger/tests/LayerTransactionTest.h
index 5b056d0..03f9005 100644
--- a/services/surfaceflinger/tests/LayerTransactionTest.h
+++ b/services/surfaceflinger/tests/LayerTransactionTest.h

@@ -23,7 +23,7 @@
 
 #include <cutils/properties.h>
 #include <gtest/gtest.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/SurfaceComposerClient.h>
 #include <private/gui/ComposerService.h>

diff --git a/services/surfaceflinger/tests/LayerTypeTransaction_test.cpp b/services/surfaceflinger/tests/LayerTypeTransaction_test.cpp
index f9b4bba..76bae41 100644
--- a/services/surfaceflinger/tests/LayerTypeTransaction_test.cpp
+++ b/services/surfaceflinger/tests/LayerTypeTransaction_test.cpp

@@ -18,6 +18,7 @@
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wconversion"
 
+#include <gui/AidlUtil.h>
 #include <gui/BufferItemConsumer.h>
 #include <private/android_filesystem_config.h>
 #include "TransactionTestHarnesses.h"
@@ -64,7 +65,7 @@
     // only layerB is in this range
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = parent->getHandle();
-    captureArgs.sourceCrop = {0, 0, 32, 32};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(32, 32);
     ScreenCapture::captureLayers(&screenshot, captureArgs);
     screenshot->expectColor(Rect(0, 0, 32, 32), Color::BLUE);
 }

diff --git a/services/surfaceflinger/tests/MirrorLayer_test.cpp b/services/surfaceflinger/tests/MirrorLayer_test.cpp
index d97d433..6cc1c51 100644
--- a/services/surfaceflinger/tests/MirrorLayer_test.cpp
+++ b/services/surfaceflinger/tests/MirrorLayer_test.cpp

@@ -20,6 +20,7 @@
 
 #include <android-base/properties.h>
 #include <common/FlagManager.h>
+#include <gui/AidlUtil.h>
 #include <private/android_filesystem_config.h>
 #include "LayerTransactionTest.h"
 #include "utils/TransactionUtils.h"
@@ -350,7 +351,7 @@
         // Capture just the mirror layer and child.
         LayerCaptureArgs captureArgs;
         captureArgs.layerHandle = mirrorParent->getHandle();
-        captureArgs.sourceCrop = childBounds;
+        captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(childBounds);
         std::unique_ptr<ScreenCapture> shot;
         ScreenCapture::captureLayers(&shot, captureArgs);
         shot->expectSize(childBounds.width(), childBounds.height());

diff --git a/services/surfaceflinger/tests/ScreenCapture_test.cpp b/services/surfaceflinger/tests/ScreenCapture_test.cpp
index 9a78550..c62f493 100644
--- a/services/surfaceflinger/tests/ScreenCapture_test.cpp
+++ b/services/surfaceflinger/tests/ScreenCapture_test.cpp

@@ -20,6 +20,7 @@
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wconversion"
 
+#include <gui/AidlUtil.h>
 #include <private/android_filesystem_config.h>
 #include <ui/DisplayState.h>
 
@@ -65,7 +66,7 @@
                     .show(mFGSurfaceControl);
         });
 
-        mCaptureArgs.sourceCrop = mDisplayRect;
+        mCaptureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(mDisplayRect);
         mCaptureArgs.layerHandle = mRootSurfaceControl->getHandle();
     }
 
@@ -112,7 +113,7 @@
             shot->expectColor(Rect(0, 0, 32, 32), Color::BLACK);
         }
 
-        mCaptureArgs.captureSecureLayers = true;
+        mCaptureArgs.captureArgs.captureSecureLayers = true;
         // AID_SYSTEM is allowed to capture secure content.
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(mCaptureArgs, mCaptureResults));
         ASSERT_TRUE(mCaptureResults.capturedSecureLayers);
@@ -164,7 +165,7 @@
 
     // Here we pass captureSecureLayers = true and since we are AID_SYSTEM we should be able
     // to receive them...we are expected to take care with the results.
-    mCaptureArgs.captureSecureLayers = true;
+    mCaptureArgs.captureArgs.captureSecureLayers = true;
     ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(mCaptureArgs, mCaptureResults));
     ASSERT_TRUE(mCaptureResults.capturedSecureLayers);
     ScreenCapture sc(mCaptureResults.buffer, mCaptureResults.capturedHdrLayers);
@@ -198,8 +199,8 @@
             .apply();
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = childLayer->getHandle();
-    captureArgs.sourceCrop = size;
-    captureArgs.captureSecureLayers = false;
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(size);
+    captureArgs.captureArgs.captureSecureLayers = false;
     {
         SCOPED_TRACE("parent hidden");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -208,7 +209,7 @@
         sc.expectColor(size, Color::BLACK);
     }
 
-    captureArgs.captureSecureLayers = true;
+    captureArgs.captureArgs.captureSecureLayers = true;
     {
         SCOPED_TRACE("capture secure parent not visible");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -218,7 +219,7 @@
     }
 
     Transaction().show(parentLayer).apply();
-    captureArgs.captureSecureLayers = false;
+    captureArgs.captureArgs.captureSecureLayers = false;
     {
         SCOPED_TRACE("parent visible");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -227,7 +228,7 @@
         sc.expectColor(size, Color::BLACK);
     }
 
-    captureArgs.captureSecureLayers = true;
+    captureArgs.captureArgs.captureSecureLayers = true;
     {
         SCOPED_TRACE("capture secure parent visible");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -259,8 +260,8 @@
             .apply();
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = childLayer->getHandle();
-    captureArgs.sourceCrop = size;
-    captureArgs.captureSecureLayers = false;
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(size);
+    captureArgs.captureArgs.captureSecureLayers = false;
     {
         SCOPED_TRACE("parent hidden");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -269,7 +270,7 @@
         sc.expectColor(size, Color::BLACK);
     }
 
-    captureArgs.captureSecureLayers = true;
+    captureArgs.captureArgs.captureSecureLayers = true;
     {
         SCOPED_TRACE("capture secure parent not visible");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -279,7 +280,7 @@
     }
 
     Transaction().show(parentLayer).apply();
-    captureArgs.captureSecureLayers = false;
+    captureArgs.captureArgs.captureSecureLayers = false;
     {
         SCOPED_TRACE("parent visible");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -288,7 +289,7 @@
         sc.expectColor(size, Color::BLACK);
     }
 
-    captureArgs.captureSecureLayers = true;
+    captureArgs.captureArgs.captureSecureLayers = true;
     {
         SCOPED_TRACE("capture secure parent visible");
         ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(captureArgs, mCaptureResults));
@@ -361,14 +362,14 @@
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = fgHandle;
     captureArgs.childrenOnly = true;
-    captureArgs.excludeHandles = {child2->getHandle()};
+    captureArgs.captureArgs.excludeHandles = {child2->getHandle()};
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     mCapture->checkPixel(10, 10, 0, 0, 0);
     mCapture->checkPixel(0, 0, 200, 200, 200);
 }
 
 TEST_F(ScreenCaptureTest, CaptureLayerExcludeThroughDisplayArgs) {
-    mCaptureArgs.excludeHandles = {mFGSurfaceControl->getHandle()};
+    mCaptureArgs.captureArgs.excludeHandles = {mFGSurfaceControl->getHandle()};
     ScreenCapture::captureLayers(&mCapture, mCaptureArgs);
     mCapture->expectBGColor(0, 0);
     // Doesn't capture FG layer which is at 64, 64
@@ -401,7 +402,7 @@
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = fgHandle;
     captureArgs.childrenOnly = true;
-    captureArgs.excludeHandles = {child2->getHandle()};
+    captureArgs.captureArgs.excludeHandles = {child2->getHandle()};
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     mCapture->checkPixel(10, 10, 0, 0, 0);
     mCapture->checkPixel(0, 0, 200, 200, 200);
@@ -418,7 +419,7 @@
     // Captures child
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = child->getHandle();
-    captureArgs.sourceCrop = {0, 0, 10, 20};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(10, 20);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     mCapture->expectColor(Rect(0, 0, 9, 9), {200, 200, 200, 255});
     // Area outside of child's bounds is transparent.
@@ -481,7 +482,7 @@
 
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = child->getHandle();
-    captureArgs.sourceCrop = {0, 0, 10, 10};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(10, 10);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
     mCapture->expectColor(Rect(0, 0, 9, 9), Color::RED);
@@ -623,7 +624,7 @@
     // red area to the right of the blue area
     mCapture->expectColor(Rect(30, 0, 59, 59), Color::RED);
 
-    captureArgs.sourceCrop = {0, 0, 30, 30};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(30, 30);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     // Capturing the cropped screen, cropping out the shown red area, should leave only the blue
     // area visible.
@@ -658,8 +659,8 @@
     // red area to the right of the blue area
     mCapture->expectColor(Rect(30, 0, 59, 59), Color::RED);
 
-    captureArgs.frameScaleX = 0.5f;
-    captureArgs.frameScaleY = 0.5f;
+    captureArgs.captureArgs.frameScaleX = 0.5f;
+    captureArgs.captureArgs.frameScaleY = 0.5f;
     sleep(1);
 
     ScreenCapture::captureLayers(&mCapture, captureArgs);
@@ -689,8 +690,8 @@
 
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = redLayer->getHandle();
-    captureArgs.frameScaleX = INT32_MAX / 60;
-    captureArgs.frameScaleY = INT32_MAX / 60;
+    captureArgs.captureArgs.frameScaleX = INT32_MAX / 60;
+    captureArgs.captureArgs.frameScaleY = INT32_MAX / 60;
 
     ScreenCaptureResults captureResults;
     ASSERT_EQ(BAD_VALUE, ScreenCapture::captureLayers(captureArgs, captureResults));
@@ -736,7 +737,7 @@
     mCapture->expectColor(Rect(30, 30, 60, 60), Color::RED);
 
     // Passing flag secure so the blue layer should be screenshot too.
-    args.captureSecureLayers = true;
+    args.captureArgs.captureSecureLayers = true;
     ScreenCapture::captureLayers(&mCapture, args);
     mCapture->expectColor(Rect(0, 0, 30, 30), Color::BLUE);
     mCapture->expectColor(Rect(30, 30, 60, 60), Color::RED);
@@ -780,7 +781,7 @@
     // Reading color data will expectedly result in crash, only check usage bit
     // b/309965549 Checking that the usage bit is protected does not work for
     // devices that do not support usage protected.
-    mCaptureArgs.allowProtected = true;
+    mCaptureArgs.captureArgs.allowProtected = true;
     ASSERT_EQ(NO_ERROR, ScreenCapture::captureLayers(mCaptureArgs, captureResults));
     // ASSERT_EQ(GRALLOC_USAGE_PROTECTED, GRALLOC_USAGE_PROTECTED &
     // captureResults.buffer->getUsage());
@@ -898,7 +899,7 @@
 
     // Make screenshot request with current uid set. No layers were created with the current
     // uid so screenshot will be black.
-    captureArgs.uid = fakeUid;
+    captureArgs.captureArgs.uid = fakeUid;
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     mCapture->expectColor(Rect(0, 0, 32, 32), Color::TRANSPARENT);
     mCapture->expectBorder(Rect(0, 0, 32, 32), Color::TRANSPARENT);
@@ -935,7 +936,7 @@
     mCapture->expectBorder(Rect(128, 128, 160, 160), Color::TRANSPARENT);
 
     // Screenshot from the fakeUid caller with no uid requested allows everything to be screenshot.
-    captureArgs.uid = -1;
+    captureArgs.captureArgs.uid = -1;
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     mCapture->expectColor(Rect(128, 128, 160, 160), Color::RED);
     mCapture->expectBorder(Rect(128, 128, 160, 160), {63, 63, 195, 255});
@@ -955,7 +956,7 @@
     ScreenCapture::captureLayers(&mCapture, captureArgs);
     mCapture->expectColor(Rect(0, 0, 32, 32), Color::RED);
 
-    captureArgs.grayscale = true;
+    captureArgs.captureArgs.grayscale = true;
 
     const uint8_t tolerance = 1;
 
@@ -1052,7 +1053,7 @@
 
     LayerCaptureArgs captureArgs;
     captureArgs.layerHandle = mirroredLayer->getHandle();
-    captureArgs.sourceCrop = Rect(0, 0, 1, 1);
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(1, 1);
 
     // Screenshot path should only use the children of the layer hierarchy so
     // that it will not create a new snapshot. A snapshot would otherwise be

diff --git a/services/surfaceflinger/tests/TextureFiltering_test.cpp b/services/surfaceflinger/tests/TextureFiltering_test.cpp
index c5d118c..3f39cf6 100644
--- a/services/surfaceflinger/tests/TextureFiltering_test.cpp
+++ b/services/surfaceflinger/tests/TextureFiltering_test.cpp

@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 
+#include <android/gui/DisplayCaptureArgs.h>
 #include <android/gui/ISurfaceComposerClient.h>
 #include <gtest/gtest.h>
-#include <gui/DisplayCaptureArgs.h>
+#include <gui/AidlUtil.h>
 #include <ui/GraphicTypes.h>
 #include <ui/Rect.h>
 
@@ -84,7 +85,7 @@
 };
 
 TEST_F(TextureFilteringTest, NoFiltering) {
-    captureArgs.sourceCrop = Rect{0, 0, 100, 100};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(100, 100);
     captureArgs.layerHandle = mParent->getHandle();
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
@@ -93,7 +94,7 @@
 }
 
 TEST_F(TextureFilteringTest, BufferCropNoFiltering) {
-    captureArgs.sourceCrop = Rect{0, 0, 100, 100};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(100, 100);
     captureArgs.layerHandle = mParent->getHandle();
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
@@ -105,7 +106,7 @@
 TEST_F(TextureFilteringTest, BufferCropIsFiltered) {
     Transaction().setBufferCrop(mLayer, Rect{25, 25, 75, 75}).apply();
 
-    captureArgs.sourceCrop = Rect{0, 0, 100, 100};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(100, 100);
     captureArgs.layerHandle = mParent->getHandle();
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
@@ -114,9 +115,9 @@
 
 // Expect filtering because the output source crop is stretched to the output buffer's size.
 TEST_F(TextureFilteringTest, OutputSourceCropIsFiltered) {
-    captureArgs.frameScaleX = 2;
-    captureArgs.frameScaleY = 2;
-    captureArgs.sourceCrop = Rect{25, 25, 75, 75};
+    captureArgs.captureArgs.frameScaleX = 2;
+    captureArgs.captureArgs.frameScaleY = 2;
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(25, 25, 75, 75);
     captureArgs.layerHandle = mParent->getHandle();
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
@@ -127,9 +128,9 @@
 // buffer's size.
 TEST_F(TextureFilteringTest, LayerCropOutputSourceCropIsFiltered) {
     Transaction().setCrop(mLayer, Rect{25, 25, 75, 75}).apply();
-    captureArgs.frameScaleX = 2;
-    captureArgs.frameScaleY = 2;
-    captureArgs.sourceCrop = Rect{25, 25, 75, 75};
+    captureArgs.captureArgs.frameScaleX = 2;
+    captureArgs.captureArgs.frameScaleY = 2;
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(25, 25, 75, 75);
     captureArgs.layerHandle = mParent->getHandle();
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
@@ -139,8 +140,8 @@
 // Expect filtering because the layer is scaled up.
 TEST_F(TextureFilteringTest, LayerCaptureWithScalingIsFiltered) {
     captureArgs.layerHandle = mLayer->getHandle();
-    captureArgs.frameScaleX = 2;
-    captureArgs.frameScaleY = 2;
+    captureArgs.captureArgs.frameScaleX = 2;
+    captureArgs.captureArgs.frameScaleY = 2;
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
     expectFiltered({0, 0, 100, 200}, {100, 0, 200, 200});
@@ -149,7 +150,7 @@
 // Expect no filtering because the output buffer's size matches the source crop.
 TEST_F(TextureFilteringTest, LayerCaptureOutputSourceCropNoFiltering) {
     captureArgs.layerHandle = mLayer->getHandle();
-    captureArgs.sourceCrop = Rect{25, 25, 75, 75};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(25, 25, 75, 75);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
     mCapture->expectColor(Rect{0, 0, 25, 50}, Color::RED);
@@ -162,7 +163,7 @@
     Transaction().setCrop(mLayer, Rect{10, 10, 90, 90}).apply();
 
     captureArgs.layerHandle = mLayer->getHandle();
-    captureArgs.sourceCrop = Rect{25, 25, 75, 75};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(25, 25, 75, 75);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
     mCapture->expectColor(Rect{0, 0, 25, 50}, Color::RED);
@@ -172,7 +173,7 @@
 // Expect no filtering because the output source crop and output buffer are the same size.
 TEST_F(TextureFilteringTest, OutputSourceCropDisplayFrameMatchNoFiltering) {
     captureArgs.layerHandle = mLayer->getHandle();
-    captureArgs.sourceCrop = Rect{25, 25, 75, 75};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(25, 25, 75, 75);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
     mCapture->expectColor(Rect{0, 0, 25, 50}, Color::RED);
@@ -206,7 +207,7 @@
     Transaction().setPosition(mParent, 100, 100).apply();
 
     captureArgs.layerHandle = mParent->getHandle();
-    captureArgs.sourceCrop = Rect{0, 0, 100, 100};
+    captureArgs.captureArgs.sourceCrop = gui::aidl_utils::toARect(100, 100);
     ScreenCapture::captureLayers(&mCapture, captureArgs);
 
     mCapture->expectColor(Rect{0, 0, 50, 100}, Color::RED);

diff --git a/services/surfaceflinger/tests/TransactionTestHarnesses.h b/services/surfaceflinger/tests/TransactionTestHarnesses.h
index af3cb9a..67a5247 100644
--- a/services/surfaceflinger/tests/TransactionTestHarnesses.h
+++ b/services/surfaceflinger/tests/TransactionTestHarnesses.h

@@ -16,6 +16,7 @@
 #ifndef ANDROID_TRANSACTION_TEST_HARNESSES
 #define ANDROID_TRANSACTION_TEST_HARNESSES
 
+#include <com_android_graphics_libgui_flags.h>
 #include <common/FlagManager.h>
 #include <ui/DisplayState.h>
 
@@ -51,6 +52,16 @@
                 const ui::Size& resolution = displayMode.resolution;
 
                 sp<IBinder> vDisplay;
+
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+                sp<BufferItemConsumer> itemConsumer = sp<BufferItemConsumer>::make(
+                        // Sample usage bits from screenrecord
+                        GRALLOC_USAGE_HW_VIDEO_ENCODER | GRALLOC_USAGE_SW_READ_OFTEN);
+                sp<BufferListener> listener = sp<BufferListener>::make(this);
+                itemConsumer->setFrameAvailableListener(listener);
+                itemConsumer->setName(String8("Virtual disp consumer"));
+                itemConsumer->setDefaultBufferSize(resolution.getWidth(), resolution.getHeight());
+#else
                 sp<IGraphicBufferProducer> producer;
                 sp<IGraphicBufferConsumer> consumer;
                 sp<BufferItemConsumer> itemConsumer;
@@ -65,6 +76,7 @@
                                                                     GRALLOC_USAGE_SW_READ_OFTEN);
                 sp<BufferListener> listener = sp<BufferListener>::make(this);
                 itemConsumer->setFrameAvailableListener(listener);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
 
                 static const std::string kDisplayName("VirtualDisplay");
                 vDisplay = SurfaceComposerClient::createVirtualDisplay(kDisplayName,
@@ -76,7 +88,12 @@
                         SurfaceComposerClient::getDefault()->mirrorDisplay(displayId);
 
                 SurfaceComposerClient::Transaction t;
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+                t.setDisplaySurface(vDisplay,
+                                    itemConsumer->getSurface()->getIGraphicBufferProducer());
+#else
                 t.setDisplaySurface(vDisplay, producer);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
                 t.setDisplayProjection(vDisplay, displayState.orientation,
                                        Rect(displayState.layerStackSpaceRect), Rect(resolution));
                 if (FlagManager::getInstance().ce_fence_promise()) {

diff --git a/services/surfaceflinger/tests/VirtualDisplay_test.cpp b/services/surfaceflinger/tests/VirtualDisplay_test.cpp
index cd66dd2..d69378c 100644
--- a/services/surfaceflinger/tests/VirtualDisplay_test.cpp
+++ b/services/surfaceflinger/tests/VirtualDisplay_test.cpp

@@ -27,6 +27,12 @@
 class VirtualDisplayTest : public ::testing::Test {
 protected:
     void SetUp() override {
+#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
+        mGLConsumer = sp<GLConsumer>::make(GLConsumer::TEXTURE_EXTERNAL, true, false, false);
+        mGLConsumer->setName(String8("Virtual disp consumer"));
+        mGLConsumer->setDefaultBufferSize(100, 100);
+        mProducer = mGLConsumer->getSurface()->getIGraphicBufferProducer();
+#else
         sp<IGraphicBufferConsumer> consumer;
 
         BufferQueue::createBufferQueue(&mProducer, &consumer);
@@ -34,6 +40,7 @@
         consumer->setDefaultBufferSize(100, 100);
 
         mGLConsumer = sp<GLConsumer>::make(consumer, GLConsumer::TEXTURE_EXTERNAL, true, false);
+#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
     }
 
     sp<IGraphicBufferProducer> mProducer;

diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
index 52bb07a..7e84408 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryIntegrationTest.cpp

@@ -892,6 +892,50 @@
     EXPECT_EQ(FrameRateCategory::High, summarizeLayerHistory(time)[0].frameRateCategory);
 }
 
+TEST_F(LayerHistoryIntegrationTest, oneLayerExplicitVoteWithFixedSourceAndNoPreferenceCategory) {
+    SET_FLAG_FOR_TEST(flags::frame_rate_category_mrr, false);
+    SET_FLAG_FOR_TEST(flags::view_set_requested_frame_rate_mrr, true);
+
+    auto layer = createLegacyAndFrontedEndLayer(1);
+    setFrameRate(1, (45.6_Hz).getValue(), ANATIVEWINDOW_FRAME_RATE_COMPATIBILITY_FIXED_SOURCE,
+                 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();
+    updateLayerSnapshotsAndLayerHistory(time);
+    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::NoPreference, summarizeLayerHistory(time)[0].frameRateCategory);
+
+    // Second LayerRequirement is the frame rate specification
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
+              summarizeLayerHistory(time)[1].vote);
+    EXPECT_EQ(45.6_Hz, summarizeLayerHistory(time)[1].desiredRefreshRate);
+    EXPECT_EQ(FrameRateCategory::Default, summarizeLayerHistory(time)[1].frameRateCategory);
+
+    // layer became infrequent, but the vote stays
+    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::NoPreference, summarizeLayerHistory(time)[0].frameRateCategory);
+}
+
 TEST_F(LayerHistoryIntegrationTest, multipleLayers) {
     auto layer1 = createLegacyAndFrontedEndLayer(1);
     auto layer2 = createLegacyAndFrontedEndLayer(2);

diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 358f6b0..45ca7e2 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp

@@ -884,7 +884,6 @@
             mScheduler->createDisplayEventConnection(Cycle::Render, {}, layer->getHandle());
 
     layer.clear();
-    mFlinger.mutableLayersPendingRemoval().clear();
     EXPECT_TRUE(mScheduler->mutableAttachedChoreographers().empty());
 }
 

diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp
index db6df22..4bc134f 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_HdrOutputControlTest.cpp

@@ -18,7 +18,7 @@
 #define LOG_TAG "LibSurfaceFlingerUnittests"
 
 #include <gtest/gtest.h>
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <private/gui/ComposerService.h>
 #include <private/gui/ComposerServiceAIDL.h>
 

diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index a6a2758..710b5cc 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h

@@ -721,7 +721,6 @@
     }
 
     auto& mutableMinAcquiredBuffers() { return SurfaceFlinger::minAcquiredBuffers; }
-    auto& mutableLayersPendingRemoval() { return mFlinger->mLayersPendingRemoval; }
     auto& mutableLayerSnapshotBuilder() { return mFlinger->mLayerSnapshotBuilder; };
 
     auto fromHandle(const sp<IBinder>& handle) { return LayerHandle::getLayer(handle); }
@@ -789,7 +788,6 @@
         mutableDisplays().clear();
         mutableCurrentState().displays.clear();
         mutableDrawingState().displays.clear();
-        mFlinger->mLayersPendingRemoval.clear();
         mFlinger->mScheduler.reset();
         mFlinger->mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>());
         mFlinger->mRenderEngine = std::unique_ptr<renderengine::RenderEngine>();

diff --git a/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp b/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp
index 7bf1674..f8f08c7 100644
--- a/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionTracingTest.cpp

@@ -20,6 +20,7 @@
 #include <gui/SurfaceComposerClient.h>
 #include <cstdint>
 #include "Client.h"
+#include "Layer.h"
 
 #include <layerproto/LayerProtoHeader.h>
 #include "FrontEnd/LayerCreationArgs.h"

diff --git a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
index 9f6065b..e27af0e 100644
--- a/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TunnelModeEnabledReporterTest.cpp

@@ -128,12 +128,10 @@
             NativeHandle::create(reinterpret_cast<native_handle_t*>(DEFAULT_SIDEBAND_STREAM),
                                  false);
     layer->setSidebandStream(stream, FrameTimelineInfo{}, 20, gui::GameMode::Unsupported);
-    mFlinger.mutableCurrentState().layersSortedByZ.add(layer);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     mTunnelModeEnabledReporter->addListener(mTunnelModeEnabledListener);
     EXPECT_EQ(true, mTunnelModeEnabledListener->mTunnelModeEnabled);
     mTunnelModeEnabledReporter->removeListener(mTunnelModeEnabledListener);
-    mFlinger.mutableCurrentState().layersSortedByZ.remove(layer);
     layer = nullptr;
 
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
@@ -154,12 +152,9 @@
     layerWithSidebandStream->setSidebandStream(stream, FrameTimelineInfo{}, 20,
                                                gui::GameMode::Unsupported);
 
-    mFlinger.mutableCurrentState().layersSortedByZ.add(simpleLayer);
-    mFlinger.mutableCurrentState().layersSortedByZ.add(layerWithSidebandStream);
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     EXPECT_EQ(true, mTunnelModeEnabledListener->mTunnelModeEnabled);
 
-    mFlinger.mutableCurrentState().layersSortedByZ.remove(layerWithSidebandStream);
     layerWithSidebandStream = nullptr;
     mTunnelModeEnabledReporter->updateTunnelModeStatus();
     EXPECT_EQ(false, mTunnelModeEnabledListener->mTunnelModeEnabled);

diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h
index 184dada..f472d8f 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockComposer.h

@@ -180,6 +180,12 @@
     MOCK_METHOD1(onHotplugDisconnect, void(Display));
     MOCK_METHOD(Error, setRefreshRateChangedCallbackDebugEnabled, (Display, bool));
     MOCK_METHOD(Error, notifyExpectedPresent, (Display, nsecs_t, int32_t));
+    MOCK_METHOD(
+            Error, getRequestedLuts,
+            (Display,
+             std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*));
+    MOCK_METHOD(Error, setLayerLuts,
+                (Display, Layer, std::vector<aidl::android::hardware::graphics::composer3::Lut>&));
 };
 
 } // namespace Hwc2::mock

diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
index 602bdfc..2cc1987 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h

@@ -109,6 +109,9 @@
     MOCK_METHOD(hal::Error, getOverlaySupport,
                 (aidl::android::hardware::graphics::composer3::OverlayProperties *),
                 (const override));
+    MOCK_METHOD(hal::Error, getRequestedLuts,
+                (std::vector<aidl::android::hardware::graphics::composer3::DisplayLuts::LayerLut>*),
+                (override));
 };
 
 class Layer : public HWC2::Layer {
@@ -143,6 +146,8 @@
                 (const std::string &, bool, const std::vector<uint8_t> &), (override));
     MOCK_METHOD(hal::Error, setBrightness, (float), (override));
     MOCK_METHOD(hal::Error, setBlockingRegion, (const android::Region &), (override));
+    MOCK_METHOD(hal::Error, setLuts,
+                (std::vector<aidl::android::hardware::graphics::composer3::Lut>&), (override));
 };
 
 } // namespace android::HWC2::mock

diff --git a/services/surfaceflinger/tests/utils/ScreenshotUtils.h b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
index 1675584..0bedcd1 100644
--- a/services/surfaceflinger/tests/utils/ScreenshotUtils.h
+++ b/services/surfaceflinger/tests/utils/ScreenshotUtils.h

@@ -15,7 +15,7 @@
  */
 #pragma once
 
-#include <gui/AidlStatusUtil.h>
+#include <gui/AidlUtil.h>
 #include <gui/SyncScreenCaptureListener.h>
 #include <private/gui/ComposerServiceAIDL.h>
 #include <ui/FenceResult.h>
@@ -39,7 +39,7 @@
         const auto sf = ComposerServiceAIDL::getComposerService();
         SurfaceComposerClient::Transaction().apply(true);
 
-        captureArgs.dataspace = ui::Dataspace::V0_SRGB;
+        captureArgs.captureArgs.dataspace = static_cast<int32_t>(ui::Dataspace::V0_SRGB);
         const sp<SyncScreenCaptureListener> captureListener = sp<SyncScreenCaptureListener>::make();
         binder::Status status = sf->captureDisplay(captureArgs, captureListener);
         status_t err = statusTFromBinderStatus(status);
@@ -77,7 +77,7 @@
         const auto sf = ComposerServiceAIDL::getComposerService();
         SurfaceComposerClient::Transaction().apply(true);
 
-        captureArgs.dataspace = ui::Dataspace::V0_SRGB;
+        captureArgs.captureArgs.dataspace = static_cast<int32_t>(ui::Dataspace::V0_SRGB);
         const sp<SyncScreenCaptureListener> captureListener = sp<SyncScreenCaptureListener>::make();
         binder::Status status = sf->captureLayers(captureArgs, captureListener);
         status_t err = statusTFromBinderStatus(status);

diff --git a/services/vibratorservice/VibratorHalWrapper.cpp b/services/vibratorservice/VibratorHalWrapper.cpp
index c97f401..3d8124b 100644
--- a/services/vibratorservice/VibratorHalWrapper.cpp
+++ b/services/vibratorservice/VibratorHalWrapper.cpp

@@ -32,6 +32,8 @@
 using aidl::android::hardware::vibrator::Effect;
 using aidl::android::hardware::vibrator::EffectStrength;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::PwleV2OutputMapEntry;
+using aidl::android::hardware::vibrator::PwleV2Primitive;
 using aidl::android::hardware::vibrator::VendorEffect;
 
 using std::chrono::milliseconds;
@@ -114,6 +116,12 @@
     return HalResult<void>::unsupported();
 }
 
+HalResult<void> HalWrapper::composePwleV2(const std::vector<PwleV2Primitive>&,
+                                          const std::function<void()>&) {
+    ALOGV("Skipped composePwleV2 because it's not available in Vibrator HAL");
+    return HalResult<void>::unsupported();
+}
+
 HalResult<Capabilities> HalWrapper::getCapabilities() {
     std::lock_guard<std::mutex> lock(mInfoMutex);
     if (mInfoCache.mCapabilities.isFailed()) {
@@ -313,6 +321,13 @@
     return HalResultFactory::fromStatus(getHal()->composePwle(primitives, cb));
 }
 
+HalResult<void> AidlHalWrapper::composePwleV2(const std::vector<PwleV2Primitive>& composite,
+                                              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()->composePwleV2(composite, cb));
+}
+
 HalResult<Capabilities> AidlHalWrapper::getCapabilitiesInternal() {
     int32_t cap = 0;
     auto status = getHal()->getCapabilities(&cap);

diff --git a/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h b/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
index 20979bd..ae0d9ab 100644
--- a/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h
+++ b/services/vibratorservice/include/vibratorservice/VibratorHalWrapper.h

@@ -354,6 +354,8 @@
     using CompositeEffect = aidl::android::hardware::vibrator::CompositeEffect;
     using Braking = aidl::android::hardware::vibrator::Braking;
     using PrimitivePwle = aidl::android::hardware::vibrator::PrimitivePwle;
+    using PwleV2Primitive = aidl::android::hardware::vibrator::PwleV2Primitive;
+    using PwleV2OutputMapEntry = aidl::android::hardware::vibrator::PwleV2OutputMapEntry;
 
     explicit HalWrapper(std::shared_ptr<CallbackScheduler> scheduler)
           : mCallbackScheduler(std::move(scheduler)) {}
@@ -391,6 +393,9 @@
     virtual HalResult<void> performPwleEffect(const std::vector<PrimitivePwle>& primitives,
                                               const std::function<void()>& completionCallback);
 
+    virtual HalResult<void> composePwleV2(const std::vector<PwleV2Primitive>& composite,
+                                          const std::function<void()>& completionCallback);
+
 protected:
     // Shared pointer to allow CallbackScheduler to outlive this wrapper.
     const std::shared_ptr<CallbackScheduler> mCallbackScheduler;
@@ -471,6 +476,9 @@
             const std::vector<PrimitivePwle>& primitives,
             const std::function<void()>& completionCallback) override final;
 
+    HalResult<void> composePwleV2(const std::vector<PwleV2Primitive>& composite,
+                                  const std::function<void()>& completionCallback) override final;
+
 protected:
     HalResult<Capabilities> getCapabilitiesInternal() override final;
     HalResult<std::vector<Effect>> getSupportedEffectsInternal() override final;

diff --git a/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp b/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
index 7bcc59a..ba7e1f0 100644
--- a/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperAidlTest.cpp

@@ -39,6 +39,7 @@
 using aidl::android::hardware::vibrator::IVibrator;
 using aidl::android::hardware::vibrator::IVibratorCallback;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::PwleV2Primitive;
 using aidl::android::hardware::vibrator::VendorEffect;
 using aidl::android::os::PersistableBundle;
 
@@ -681,3 +682,38 @@
     ASSERT_TRUE(result.isOk());
     ASSERT_EQ(1, *callbackCounter.get());
 }
+
+TEST_F(VibratorHalWrapperAidlTest, TestComposePwleV2) {
+    auto pwleEffect = {
+            PwleV2Primitive(/*amplitude=*/0.2, /*frequency=*/50, /*time=*/100),
+            PwleV2Primitive(/*amplitude=*/0.5, /*frequency=*/150, /*time=*/100),
+            PwleV2Primitive(/*amplitude=*/0.8, /*frequency=*/250, /*time=*/100),
+    };
+
+    {
+        InSequence seq;
+        EXPECT_CALL(*mMockHal.get(), composePwleV2(_, _))
+                .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->composePwleV2(pwleEffect, callback);
+    ASSERT_TRUE(result.isUnsupported());
+    // Callback not triggered on failure
+    ASSERT_EQ(0, *callbackCounter.get());
+
+    result = mWrapper->composePwleV2(pwleEffect, callback);
+    ASSERT_TRUE(result.isFailed());
+    // Callback not triggered for unsupported
+    ASSERT_EQ(0, *callbackCounter.get());
+
+    result = mWrapper->composePwleV2(pwleEffect, callback);
+    ASSERT_TRUE(result.isOk());
+    ASSERT_EQ(1, *callbackCounter.get());
+}

diff --git a/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp b/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
index 9a7c69d..83430d7 100644
--- a/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp
+++ b/services/vibratorservice/test/VibratorHalWrapperHidlV1_0Test.cpp

@@ -40,6 +40,7 @@
 using aidl::android::hardware::vibrator::EffectStrength;
 using aidl::android::hardware::vibrator::IVibrator;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::PwleV2Primitive;
 using aidl::android::hardware::vibrator::VendorEffect;
 using aidl::android::os::PersistableBundle;
 
@@ -369,3 +370,19 @@
     // No callback is triggered.
     ASSERT_EQ(0, *callbackCounter.get());
 }
+
+TEST_F(VibratorHalWrapperHidlV1_0Test, TestComposePwleV2Unsupported) {
+    auto pwleEffect = {
+            PwleV2Primitive(/*amplitude=*/0.2, /*frequency=*/50, /*time=*/100),
+            PwleV2Primitive(/*amplitude=*/0.5, /*frequency=*/150, /*time=*/100),
+            PwleV2Primitive(/*amplitude=*/0.8, /*frequency=*/250, /*time=*/100),
+    };
+
+    std::unique_ptr<int32_t> callbackCounter = std::make_unique<int32_t>();
+    auto callback = vibrator::TestFactory::createCountingCallback(callbackCounter.get());
+
+    ASSERT_TRUE(mWrapper->composePwleV2(pwleEffect, callback).isUnsupported());
+
+    // No callback is triggered.
+    ASSERT_EQ(0, *callbackCounter.get());
+}

diff --git a/services/vibratorservice/test/test_mocks.h b/services/vibratorservice/test/test_mocks.h
index 2f9451e..5e09084 100644
--- a/services/vibratorservice/test/test_mocks.h
+++ b/services/vibratorservice/test/test_mocks.h

@@ -41,6 +41,8 @@
 using aidl::android::hardware::vibrator::IVibrator;
 using aidl::android::hardware::vibrator::IVibratorCallback;
 using aidl::android::hardware::vibrator::PrimitivePwle;
+using aidl::android::hardware::vibrator::PwleV2OutputMapEntry;
+using aidl::android::hardware::vibrator::PwleV2Primitive;
 using aidl::android::hardware::vibrator::VendorEffect;
 
 // -------------------------------------------------------------------------------------------------
@@ -89,6 +91,17 @@
     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, getPwleV2FrequencyToOutputAccelerationMap,
+                (std::vector<PwleV2OutputMapEntry> * ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getPwleV2PrimitiveDurationMaxMillis, (int32_t* ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getPwleV2PrimitiveDurationMinMillis, (int32_t* ret),
+                (override));
+    MOCK_METHOD(ndk::ScopedAStatus, getPwleV2CompositionSizeMax, (int32_t* ret), (override));
+    MOCK_METHOD(ndk::ScopedAStatus, composePwleV2,
+                (const std::vector<PwleV2Primitive>& e,
+                 const std::shared_ptr<IVibratorCallback>& cb),
+                (override));
     MOCK_METHOD(ndk::ScopedAStatus, getInterfaceVersion, (int32_t*), (override));
     MOCK_METHOD(ndk::ScopedAStatus, getInterfaceHash, (std::string*), (override));
     MOCK_METHOD(ndk::SpAIBinder, asBinder, (), (override));

diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 0c23cf1..09b0a14 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp

@@ -1215,8 +1215,15 @@
                             surfaceCompressionProps
                                 ->imageCompressionFixedRateFlags =
                                 compressionProps.imageCompressionFixedRateFlags;
-                        } else {
+                        } else if (compressionRes ==
+                                       VK_ERROR_OUT_OF_HOST_MEMORY ||
+                                   compressionRes ==
+                                       VK_ERROR_OUT_OF_DEVICE_MEMORY) {
                             return compressionRes;
+                        } else {
+                            // For any of the *_NOT_SUPPORTED errors we continue
+                            // onto the next format
+                            continue;
                         }
                     }
                 } break;
commit	16f184b3e52f91ee09cdc981a33dd600ac4a69db	[log] [tgz]
author	Tom Murphy <tomnom@google.com>	Fri Aug 30 22:51:47 2024 +0000
committer	Android (Google) Code Review <android-gerrit@google.com>	Fri Aug 30 22:51:47 2024 +0000
tree	df8e73ce2f9baab757465648b759835f2ee213b0
parent	48604fb057c83150a9f21af81eb970cf9ed70af7 [diff]
parent	ea32184c013e10610a74c9d2a1727ea77ac1bada [diff]