Merge "JPEG/R refactor: rename "recovery map" to "gain map"" into udc-dev
diff --git a/libs/binder/rust/tests/Android.bp b/libs/binder/rust/tests/Android.bp
index 1c875c0..2d1175b 100644
--- a/libs/binder/rust/tests/Android.bp
+++ b/libs/binder/rust/tests/Android.bp
@@ -23,9 +23,6 @@
     // this cannot be the same as the module name.
     stem: "rustBinderTestClientBinary",
     test_suites: ["general-tests"],
-    data: [
-        ":rustBinderTestService",
-    ],
 }
 
 rust_test {
@@ -39,6 +36,10 @@
     // this cannot be the same as the module name.
     stem: "rustBinderTestServiceBinary",
     test_harness: false,
+    // TODO(b/164473602): Remove this setting and add the module to `data`
+    // attribute of rustBinderTest.
+    auto_gen_config: false,
+    test_suites: ["general-tests"],
 }
 
 cc_test {
@@ -99,7 +100,7 @@
         "libbase",
     ],
     static_libs: [
-        "libbinder_rs_serialization_test",
+        "libbinder_rs_serialization_test"
     ],
     srcs: [
         "serialization.cpp",
@@ -115,10 +116,8 @@
     source_stem: "bindings",
     cpp_std: "gnu++17",
     bindgen_flags: [
-        "--allowlist-type",
-        "Transaction",
-        "--allowlist-var",
-        "TESTDATA_.*",
+        "--allowlist-type", "Transaction",
+        "--allowlist-var", "TESTDATA_.*",
     ],
 
     shared_libs: [
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 821dd37..5c324b2 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -582,7 +582,8 @@
     // 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.
-    if (mRequestedSize == getBufferSize(bufferItem)) {
+    if (mRequestedSize == getBufferSize(bufferItem) ||
+        bufferItem.mScalingMode != NATIVE_WINDOW_SCALING_MODE_FREEZE) {
         mSize = mRequestedSize;
     }
     Rect crop = computeCrop(bufferItem);
@@ -800,34 +801,24 @@
     mDequeueTimestamps.erase(bufferId);
 };
 
-void BLASTBufferQueue::syncNextTransaction(
+bool BLASTBufferQueue::syncNextTransaction(
         std::function<void(SurfaceComposerClient::Transaction*)> callback,
         bool acquireSingleBuffer) {
-    std::function<void(SurfaceComposerClient::Transaction*)> prevCallback = nullptr;
-    SurfaceComposerClient::Transaction* prevTransaction = nullptr;
+    LOG_ALWAYS_FATAL_IF(!callback,
+                        "BLASTBufferQueue: callback passed in to syncNextTransaction must not be "
+                        "NULL");
 
-    {
-        std::lock_guard _lock{mMutex};
-        BBQ_TRACE();
-        // We're about to overwrite the previous call so we should invoke that callback
-        // immediately.
-        if (mTransactionReadyCallback) {
-            prevCallback = mTransactionReadyCallback;
-            prevTransaction = mSyncTransaction;
-        }
-
-        mTransactionReadyCallback = callback;
-        if (callback) {
-            mSyncTransaction = new SurfaceComposerClient::Transaction();
-        } else {
-            mSyncTransaction = nullptr;
-        }
-        mAcquireSingleBuffer = mTransactionReadyCallback ? acquireSingleBuffer : true;
+    std::lock_guard _lock{mMutex};
+    BBQ_TRACE();
+    if (mTransactionReadyCallback) {
+        ALOGW("Attempting to overwrite transaction callback in syncNextTransaction");
+        return false;
     }
 
-    if (prevCallback) {
-        prevCallback(prevTransaction);
-    }
+    mTransactionReadyCallback = callback;
+    mSyncTransaction = new SurfaceComposerClient::Transaction();
+    mAcquireSingleBuffer = acquireSingleBuffer;
+    return true;
 }
 
 void BLASTBufferQueue::stopContinuousSyncTransaction() {
@@ -835,20 +826,35 @@
     SurfaceComposerClient::Transaction* prevTransaction = nullptr;
     {
         std::lock_guard _lock{mMutex};
-        bool invokeCallback = mTransactionReadyCallback && !mAcquireSingleBuffer;
-        if (invokeCallback) {
-            prevCallback = mTransactionReadyCallback;
-            prevTransaction = mSyncTransaction;
+        if (mAcquireSingleBuffer || !mTransactionReadyCallback) {
+            ALOGW("Attempting to stop continuous sync when none are active");
+            return;
         }
+
+        prevCallback = mTransactionReadyCallback;
+        prevTransaction = mSyncTransaction;
+
         mTransactionReadyCallback = nullptr;
         mSyncTransaction = nullptr;
         mAcquireSingleBuffer = true;
     }
+
     if (prevCallback) {
         prevCallback(prevTransaction);
     }
 }
 
+void BLASTBufferQueue::clearSyncTransaction() {
+    std::lock_guard _lock{mMutex};
+    if (!mAcquireSingleBuffer) {
+        ALOGW("Attempting to clear sync transaction when none are active");
+        return;
+    }
+
+    mTransactionReadyCallback = nullptr;
+    mSyncTransaction = nullptr;
+}
+
 bool BLASTBufferQueue::rejectBuffer(const BufferItem& item) {
     if (item.mScalingMode != NATIVE_WINDOW_SCALING_MODE_FREEZE) {
         // Only reject buffers if scaling mode is freeze.
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 69e9f8a..a49a859 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -97,9 +97,10 @@
     void releaseBufferCallbackLocked(const ReleaseCallbackId& id, const sp<Fence>& releaseFence,
                                      std::optional<uint32_t> currentMaxAcquiredBufferCount,
                                      bool fakeRelease) REQUIRES(mMutex);
-    void syncNextTransaction(std::function<void(SurfaceComposerClient::Transaction*)> callback,
+    bool syncNextTransaction(std::function<void(SurfaceComposerClient::Transaction*)> callback,
                              bool acquireSingleBuffer = true);
     void stopContinuousSyncTransaction();
+    void clearSyncTransaction();
 
     void mergeWithNextTransaction(SurfaceComposerClient::Transaction* t, uint64_t frameNumber);
     void applyPendingTransactions(uint64_t frameNumber);
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index cf2593d..7067c11 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -32,6 +32,7 @@
 #include <private/gui/ComposerService.h>
 #include <private/gui/ComposerServiceAIDL.h>
 #include <ui/DisplayMode.h>
+#include <ui/DisplayState.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/GraphicTypes.h>
 #include <ui/Transform.h>
@@ -116,15 +117,17 @@
         mBlastBufferQueueAdapter->syncNextTransaction(callback, acquireSingleBuffer);
     }
 
-    void syncNextTransaction(std::function<void(Transaction*)> callback,
+    bool syncNextTransaction(std::function<void(Transaction*)> callback,
                              bool acquireSingleBuffer = true) {
-        mBlastBufferQueueAdapter->syncNextTransaction(callback, acquireSingleBuffer);
+        return mBlastBufferQueueAdapter->syncNextTransaction(callback, acquireSingleBuffer);
     }
 
     void stopContinuousSyncTransaction() {
         mBlastBufferQueueAdapter->stopContinuousSyncTransaction();
     }
 
+    void clearSyncTransaction() { mBlastBufferQueueAdapter->clearSyncTransaction(); }
+
     int getWidth() { return mBlastBufferQueueAdapter->mSize.width; }
 
     int getHeight() { return mBlastBufferQueueAdapter->mSize.height; }
@@ -198,11 +201,13 @@
         t.apply();
         t.clear();
 
-        ui::DisplayMode mode;
-        ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(mDisplayToken, &mode));
-        const ui::Size& resolution = mode.resolution;
+        ui::DisplayState displayState;
+        ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getDisplayState(mDisplayToken, &displayState));
+        const ui::Size& resolution = displayState.layerStackSpaceRect;
         mDisplayWidth = resolution.getWidth();
         mDisplayHeight = resolution.getHeight();
+        ALOGV("Display: %dx%d orientation:%d", mDisplayWidth, mDisplayHeight,
+              displayState.orientation);
 
         mSurfaceControl = mClient->createSurface(String8("TestSurface"), mDisplayWidth,
                                                  mDisplayHeight, PIXEL_FORMAT_RGBA_8888,
@@ -1108,7 +1113,11 @@
     ASSERT_NE(nullptr, adapter.getTransactionReadyCallback());
 
     auto callback2 = [](Transaction*) {};
-    adapter.syncNextTransaction(callback2);
+    ASSERT_FALSE(adapter.syncNextTransaction(callback2));
+
+    sp<IGraphicBufferProducer> igbProducer;
+    setUpProducer(adapter, igbProducer);
+    queueBuffer(igbProducer, 0, 255, 0, 0);
 
     std::unique_lock<std::mutex> lock(mutex);
     if (!receivedCallback) {
@@ -1120,6 +1129,37 @@
     ASSERT_TRUE(receivedCallback);
 }
 
+TEST_F(BLASTBufferQueueTest, ClearSyncTransaction) {
+    std::mutex mutex;
+    std::condition_variable callbackReceivedCv;
+    bool receivedCallback = false;
+
+    BLASTBufferQueueHelper adapter(mSurfaceControl, mDisplayWidth, mDisplayHeight);
+    ASSERT_EQ(nullptr, adapter.getTransactionReadyCallback());
+    auto callback = [&](Transaction*) {
+        std::unique_lock<std::mutex> lock(mutex);
+        receivedCallback = true;
+        callbackReceivedCv.notify_one();
+    };
+    adapter.syncNextTransaction(callback);
+    ASSERT_NE(nullptr, adapter.getTransactionReadyCallback());
+
+    adapter.clearSyncTransaction();
+
+    sp<IGraphicBufferProducer> igbProducer;
+    setUpProducer(adapter, igbProducer);
+    queueBuffer(igbProducer, 0, 255, 0, 0);
+
+    std::unique_lock<std::mutex> lock(mutex);
+    if (!receivedCallback) {
+        ASSERT_EQ(callbackReceivedCv.wait_for(lock, std::chrono::seconds(3)),
+                  std::cv_status::timeout)
+                << "did not receive callback";
+    }
+
+    ASSERT_FALSE(receivedCallback);
+}
+
 TEST_F(BLASTBufferQueueTest, SyncNextTransactionDropBuffer) {
     uint8_t r = 255;
     uint8_t g = 0;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 6e2f862..851f13c 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -626,7 +626,9 @@
             touchedWindow.targetFlags = InputTarget::Flags::DISPATCH_AS_HOVER_ENTER;
         } else {
             // This pointer was already sent to the window. Use ACTION_HOVER_MOVE.
-            LOG_ALWAYS_FATAL_IF(maskedAction != AMOTION_EVENT_ACTION_HOVER_MOVE);
+            if (CC_UNLIKELY(maskedAction != AMOTION_EVENT_ACTION_HOVER_MOVE)) {
+                LOG(FATAL) << "Expected ACTION_HOVER_MOVE instead of " << entry.getDescription();
+            }
             touchedWindow.targetFlags = InputTarget::Flags::DISPATCH_AS_IS;
         }
         touchedWindow.pointerIds.set(pointerId);
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index eaed987..ccf4118 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -253,7 +253,8 @@
     mDevices.erase(eventHubId);
 }
 
-std::list<NotifyArgs> InputDevice::configure(nsecs_t when, const InputReaderConfiguration* config,
+std::list<NotifyArgs> InputDevice::configure(nsecs_t when,
+                                             const InputReaderConfiguration& readerConfig,
                                              uint32_t changes) {
     std::list<NotifyArgs> out;
     mSources = 0;
@@ -291,7 +292,7 @@
             });
 
             mAssociatedDeviceType =
-                    getValueByKey(config->deviceTypeAssociations, mIdentifier.location);
+                    getValueByKey(readerConfig.deviceTypeAssociations, mIdentifier.location);
         }
 
         if (!changes || (changes & InputReaderConfiguration::CHANGE_KEYBOARD_LAYOUTS)) {
@@ -325,8 +326,8 @@
             // Do not execute this code on the first configure, because 'setEnabled' would call
             // InputMapper::reset, and you can't reset a mapper before it has been configured.
             // The mappers are configured for the first time at the bottom of this function.
-            auto it = config->disabledDevices.find(mId);
-            bool enabled = it == config->disabledDevices.end();
+            auto it = readerConfig.disabledDevices.find(mId);
+            bool enabled = it == readerConfig.disabledDevices.end();
             out += setEnabled(enabled, when);
         }
 
@@ -338,13 +339,14 @@
             // Find the display port that corresponds to the current input port.
             const std::string& inputPort = mIdentifier.location;
             if (!inputPort.empty()) {
-                const std::unordered_map<std::string, uint8_t>& ports = config->portAssociations;
+                const std::unordered_map<std::string, uint8_t>& ports =
+                        readerConfig.portAssociations;
                 const auto& displayPort = ports.find(inputPort);
                 if (displayPort != ports.end()) {
                     mAssociatedDisplayPort = std::make_optional(displayPort->second);
                 } else {
                     const std::unordered_map<std::string, std::string>& displayUniqueIds =
-                            config->uniqueIdAssociations;
+                            readerConfig.uniqueIdAssociations;
                     const auto& displayUniqueId = displayUniqueIds.find(inputPort);
                     if (displayUniqueId != displayUniqueIds.end()) {
                         mAssociatedDisplayUniqueId = displayUniqueId->second;
@@ -356,9 +358,11 @@
             // "disabledDevices" list. If it is associated with a specific display, and it was not
             // explicitly disabled, then enable/disable the device based on whether we can find the
             // corresponding viewport.
-            bool enabled = (config->disabledDevices.find(mId) == config->disabledDevices.end());
+            bool enabled =
+                    (readerConfig.disabledDevices.find(mId) == readerConfig.disabledDevices.end());
             if (mAssociatedDisplayPort) {
-                mAssociatedViewport = config->getDisplayViewportByPort(*mAssociatedDisplayPort);
+                mAssociatedViewport =
+                        readerConfig.getDisplayViewportByPort(*mAssociatedDisplayPort);
                 if (!mAssociatedViewport) {
                     ALOGW("Input device %s should be associated with display on port %" PRIu8 ", "
                           "but the corresponding viewport is not found.",
@@ -367,7 +371,7 @@
                 }
             } else if (mAssociatedDisplayUniqueId != std::nullopt) {
                 mAssociatedViewport =
-                        config->getDisplayViewportByUniqueId(*mAssociatedDisplayUniqueId);
+                        readerConfig.getDisplayViewportByUniqueId(*mAssociatedDisplayUniqueId);
                 if (!mAssociatedViewport) {
                     ALOGW("Input device %s should be associated with display %s but the "
                           "corresponding viewport cannot be found",
@@ -384,15 +388,16 @@
             }
         }
 
-        for_each_mapper([this, when, &config, changes, &out](InputMapper& mapper) {
-            out += mapper.reconfigure(when, config, changes);
+        for_each_mapper([this, when, &readerConfig, changes, &out](InputMapper& mapper) {
+            out += mapper.reconfigure(when, readerConfig, changes);
             mSources |= mapper.getSources();
         });
 
         // If a device is just plugged but it might be disabled, we need to update some info like
         // axis range of touch from each InputMapper first, then disable it.
         if (!changes) {
-            out += setEnabled(config->disabledDevices.find(mId) == config->disabledDevices.end(),
+            out += setEnabled(readerConfig.disabledDevices.find(mId) ==
+                                      readerConfig.disabledDevices.end(),
                               when);
         }
     }
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index 81ac03b..80459a2 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -234,7 +234,7 @@
     InputDeviceIdentifier identifier = mEventHub->getDeviceIdentifier(eventHubId);
     std::shared_ptr<InputDevice> device = createDeviceLocked(eventHubId, identifier);
 
-    notifyAll(device->configure(when, &mConfig, 0));
+    notifyAll(device->configure(when, mConfig, 0));
     notifyAll(device->reset(when));
 
     if (device->isIgnored()) {
@@ -310,7 +310,7 @@
 
     std::list<NotifyArgs> resetEvents;
     if (device->hasEventHubDevices()) {
-        resetEvents += device->configure(when, &mConfig, 0);
+        resetEvents += device->configure(when, mConfig, 0);
     }
     resetEvents += device->reset(when);
     notifyAll(std::move(resetEvents));
@@ -408,7 +408,7 @@
     } else {
         for (auto& devicePair : mDevices) {
             std::shared_ptr<InputDevice>& device = devicePair.second;
-            notifyAll(device->configure(now, &mConfig, changes));
+            notifyAll(device->configure(now, mConfig, changes));
         }
     }
 
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 4ae06fe..ad45cb1 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -83,7 +83,7 @@
     void addEventHubDevice(int32_t eventHubId, bool populateMappers = true);
     void removeEventHubDevice(int32_t eventHubId);
     [[nodiscard]] std::list<NotifyArgs> configure(nsecs_t when,
-                                                  const InputReaderConfiguration* config,
+                                                  const InputReaderConfiguration& readerConfig,
                                                   uint32_t changes);
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when);
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvents, size_t count);
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.cpp b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
index d7dc2ae..1cc614e 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
@@ -134,7 +134,7 @@
 }
 
 std::list<NotifyArgs> CursorInputMapper::reconfigure(nsecs_t when,
-                                                     const InputReaderConfiguration* config,
+                                                     const InputReaderConfiguration& config,
                                                      uint32_t changes) {
     std::list<NotifyArgs> out = InputMapper::reconfigure(when, config, changes);
 
@@ -173,10 +173,10 @@
     }
 
     const bool configurePointerCapture = mParameters.mode != Parameters::Mode::NAVIGATION &&
-            ((!changes && config->pointerCaptureRequest.enable) ||
+            ((!changes && config.pointerCaptureRequest.enable) ||
              (changes & InputReaderConfiguration::CHANGE_POINTER_CAPTURE));
     if (configurePointerCapture) {
-        if (config->pointerCaptureRequest.enable) {
+        if (config.pointerCaptureRequest.enable) {
             if (mParameters.mode == Parameters::Mode::POINTER) {
                 mParameters.mode = Parameters::Mode::POINTER_RELATIVE;
                 mSource = AINPUT_SOURCE_MOUSE_RELATIVE;
@@ -207,9 +207,9 @@
             mWheelXVelocityControl.setParameters(FLAT_VELOCITY_CONTROL_PARAMS);
             mWheelYVelocityControl.setParameters(FLAT_VELOCITY_CONTROL_PARAMS);
         } else {
-            mPointerVelocityControl.setParameters(config->pointerVelocityControlParameters);
-            mWheelXVelocityControl.setParameters(config->wheelVelocityControlParameters);
-            mWheelYVelocityControl.setParameters(config->wheelVelocityControlParameters);
+            mPointerVelocityControl.setParameters(config.pointerVelocityControlParameters);
+            mWheelXVelocityControl.setParameters(config.wheelVelocityControlParameters);
+            mWheelYVelocityControl.setParameters(config.wheelVelocityControlParameters);
         }
     }
 
@@ -241,7 +241,7 @@
         // rotations and report values directly from the input device.
         if (!isOrientedDevice && mDisplayId &&
             mParameters.mode != Parameters::Mode::POINTER_RELATIVE) {
-            if (auto viewport = config->getDisplayViewportById(*mDisplayId); viewport) {
+            if (auto viewport = config.getDisplayViewportById(*mDisplayId); viewport) {
                 mOrientation = getInverseRotation(viewport->orientation);
             }
         }
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.h b/services/inputflinger/reader/mapper/CursorInputMapper.h
index 987b9de..5f7a3ad 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.h
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.h
@@ -60,7 +60,7 @@
     virtual void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     virtual void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
index c5a3075..bbb641e 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
@@ -47,7 +47,7 @@
 }
 
 std::list<NotifyArgs> ExternalStylusInputMapper::reconfigure(nsecs_t when,
-                                                             const InputReaderConfiguration* config,
+                                                             const InputReaderConfiguration& config,
                                                              uint32_t changes) {
     getAbsoluteAxisInfo(ABS_PRESSURE, &mRawPressureAxis);
     mTouchButtonAccumulator.configure();
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
index 0df8cf7..3eac10d 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
@@ -33,7 +33,7 @@
     void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index 9d1e9ce..5dd7bc4 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp
@@ -35,7 +35,7 @@
 
 void InputMapper::dump(std::string& dump) {}
 
-std::list<NotifyArgs> InputMapper::reconfigure(nsecs_t when, const InputReaderConfiguration* config,
+std::list<NotifyArgs> InputMapper::reconfigure(nsecs_t when, const InputReaderConfiguration& config,
                                                uint32_t changes) {
     return {};
 }
diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index bb15e4d..ab573f0 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h
@@ -54,7 +54,7 @@
     virtual void populateDeviceInfo(InputDeviceInfo& deviceInfo);
     virtual void dump(std::string& dump);
     [[nodiscard]] virtual std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                            const InputReaderConfiguration* config,
+                                                            const InputReaderConfiguration& config,
                                                             uint32_t changes);
     [[nodiscard]] virtual std::list<NotifyArgs> reset(nsecs_t when);
     [[nodiscard]] virtual std::list<NotifyArgs> process(const RawEvent* rawEvent) = 0;
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index f60035b..3e840ee 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -104,7 +104,7 @@
 }
 
 std::list<NotifyArgs> JoystickInputMapper::reconfigure(nsecs_t when,
-                                                       const InputReaderConfiguration* config,
+                                                       const InputReaderConfiguration& config,
                                                        uint32_t changes) {
     std::list<NotifyArgs> out = InputMapper::reconfigure(when, config, changes);
 
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.h b/services/inputflinger/reader/mapper/JoystickInputMapper.h
index 9adb07f..6f1c6b7 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.h
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.h
@@ -29,7 +29,7 @@
     virtual void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     virtual void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index fc00c48..f8dd3a8 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -118,21 +118,21 @@
 }
 
 std::optional<DisplayViewport> KeyboardInputMapper::findViewport(
-        const InputReaderConfiguration* config) {
+        const InputReaderConfiguration& readerConfig) {
     if (getDeviceContext().getAssociatedViewport()) {
         return getDeviceContext().getAssociatedViewport();
     }
 
     // No associated display defined, try to find default display if orientationAware.
     if (mParameters.orientationAware) {
-        return config->getDisplayViewportByType(ViewportType::INTERNAL);
+        return readerConfig.getDisplayViewportByType(ViewportType::INTERNAL);
     }
 
     return std::nullopt;
 }
 
 std::list<NotifyArgs> KeyboardInputMapper::reconfigure(nsecs_t when,
-                                                       const InputReaderConfiguration* config,
+                                                       const InputReaderConfiguration& config,
                                                        uint32_t changes) {
     std::list<NotifyArgs> out = InputMapper::reconfigure(when, config, changes);
 
@@ -147,7 +147,7 @@
 
     if (!changes || (changes & InputReaderConfiguration::CHANGE_KEYBOARD_LAYOUT_ASSOCIATION)) {
         mKeyboardLayoutInfo =
-                getValueByKey(config->keyboardLayoutAssociations, getDeviceContext().getLocation());
+                getValueByKey(config.keyboardLayoutAssociations, getDeviceContext().getLocation());
     }
 
     return out;
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.h b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
index 52576c3..0cb130d 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.h
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
@@ -30,7 +30,7 @@
     void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
@@ -96,7 +96,7 @@
     void resetLedState();
     void initializeLedState(LedState& ledState, int32_t led);
     void updateLedStateForModifier(LedState& ledState, int32_t led, int32_t modifier, bool reset);
-    std::optional<DisplayViewport> findViewport(const InputReaderConfiguration* config);
+    std::optional<DisplayViewport> findViewport(const InputReaderConfiguration& readerConfig);
     [[nodiscard]] std::list<NotifyArgs> cancelAllDownKeys(nsecs_t when);
 };
 
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
index 5b7b295..b181aa0 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
@@ -64,7 +64,7 @@
 }
 
 std::list<NotifyArgs> RotaryEncoderInputMapper::reconfigure(nsecs_t when,
-                                                            const InputReaderConfiguration* config,
+                                                            const InputReaderConfiguration& config,
                                                             uint32_t changes) {
     std::list<NotifyArgs> out = InputMapper::reconfigure(when, config, changes);
     if (!changes) {
@@ -72,7 +72,7 @@
     }
     if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
         std::optional<DisplayViewport> internalViewport =
-                config->getDisplayViewportByType(ViewportType::INTERNAL);
+                config.getDisplayViewportByType(ViewportType::INTERNAL);
         if (internalViewport) {
             mOrientation = internalViewport->orientation;
         } else {
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
index 639a987..37c9442 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
@@ -32,7 +32,7 @@
     virtual void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     virtual void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/reader/mapper/SensorInputMapper.cpp b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
index 720fc69..f8a520d 100644
--- a/services/inputflinger/reader/mapper/SensorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
@@ -117,7 +117,7 @@
 }
 
 std::list<NotifyArgs> SensorInputMapper::reconfigure(nsecs_t when,
-                                                     const InputReaderConfiguration* config,
+                                                     const InputReaderConfiguration& config,
                                                      uint32_t changes) {
     std::list<NotifyArgs> out = InputMapper::reconfigure(when, config, changes);
 
diff --git a/services/inputflinger/reader/mapper/SensorInputMapper.h b/services/inputflinger/reader/mapper/SensorInputMapper.h
index 93cc244..fa36ab3 100644
--- a/services/inputflinger/reader/mapper/SensorInputMapper.h
+++ b/services/inputflinger/reader/mapper/SensorInputMapper.h
@@ -34,7 +34,7 @@
     void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index c19737d..9a426bf 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -288,11 +288,11 @@
 }
 
 std::list<NotifyArgs> TouchInputMapper::reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) {
     std::list<NotifyArgs> out = InputMapper::reconfigure(when, config, changes);
 
-    mConfig = *config;
+    mConfig = config;
 
     // Full configuration should happen the first time configure is called and
     // when the device type is changed. Changing a device type can affect
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index d98ae60..0e8ff4b 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -153,7 +153,7 @@
     void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
     void dump(std::string& dump) override;
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index 33f368e..8135071 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
@@ -220,7 +220,7 @@
 }
 
 std::list<NotifyArgs> TouchpadInputMapper::reconfigure(nsecs_t when,
-                                                       const InputReaderConfiguration* config,
+                                                       const InputReaderConfiguration& config,
                                                        uint32_t changes) {
     if (!changes) {
         // First time configuration
@@ -231,7 +231,7 @@
         std::optional<int32_t> displayId = mPointerController->getDisplayId();
         ui::Rotation orientation = ui::ROTATION_0;
         if (displayId.has_value()) {
-            if (auto viewport = config->getDisplayViewportById(*displayId); viewport) {
+            if (auto viewport = config.getDisplayViewportById(*displayId); viewport) {
                 orientation = getInverseRotation(viewport->orientation);
             }
         }
@@ -242,14 +242,14 @@
                 .setBoolValues({true});
         GesturesProp accelCurveProp = mPropertyProvider.getProperty("Pointer Accel Curve");
         accelCurveProp.setRealValues(
-                createAccelerationCurveForSensitivity(config->touchpadPointerSpeed,
+                createAccelerationCurveForSensitivity(config.touchpadPointerSpeed,
                                                       accelCurveProp.getCount()));
         mPropertyProvider.getProperty("Invert Scrolling")
-                .setBoolValues({config->touchpadNaturalScrollingEnabled});
+                .setBoolValues({config.touchpadNaturalScrollingEnabled});
         mPropertyProvider.getProperty("Tap Enable")
-                .setBoolValues({config->touchpadTapToClickEnabled});
+                .setBoolValues({config.touchpadTapToClickEnabled});
         mPropertyProvider.getProperty("Button Right Click Zone Enable")
-                .setBoolValues({config->touchpadRightClickZoneEnabled});
+                .setBoolValues({config.touchpadRightClickZoneEnabled});
     }
     return {};
 }
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.h b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
index 6f152fa..27cdde1 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
@@ -45,7 +45,7 @@
     void dump(std::string& dump) override;
 
     [[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
-                                                    const InputReaderConfiguration* config,
+                                                    const InputReaderConfiguration& config,
                                                     uint32_t changes) override;
     [[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
     [[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.cpp b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
index 30c1719..3486d0f 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.cpp
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.cpp
@@ -154,8 +154,8 @@
     mPointerController = std::move(controller);
 }
 
-const InputReaderConfiguration* FakeInputReaderPolicy::getReaderConfiguration() const {
-    return &mConfig;
+const InputReaderConfiguration& FakeInputReaderPolicy::getReaderConfiguration() const {
+    return mConfig;
 }
 
 const std::vector<InputDeviceInfo>& FakeInputReaderPolicy::getInputDevices() const {
diff --git a/services/inputflinger/tests/FakeInputReaderPolicy.h b/services/inputflinger/tests/FakeInputReaderPolicy.h
index 28ac505..85ff01a 100644
--- a/services/inputflinger/tests/FakeInputReaderPolicy.h
+++ b/services/inputflinger/tests/FakeInputReaderPolicy.h
@@ -63,7 +63,7 @@
     void addDisabledDevice(int32_t deviceId);
     void removeDisabledDevice(int32_t deviceId);
     void setPointerController(std::shared_ptr<FakePointerController> controller);
-    const InputReaderConfiguration* getReaderConfiguration() const;
+    const InputReaderConfiguration& getReaderConfiguration() const;
     const std::vector<InputDeviceInfo>& getInputDevices() const;
     TouchAffineTransformation getTouchAffineTransformation(const std::string& inputDeviceDescriptor,
                                                            ui::Rotation surfaceRotation);
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index fb082da..dcf8557 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -263,7 +263,7 @@
         }
     }
 
-    std::list<NotifyArgs> reconfigure(nsecs_t, const InputReaderConfiguration* config,
+    std::list<NotifyArgs> reconfigure(nsecs_t, const InputReaderConfiguration& config,
                                       uint32_t changes) override {
         std::scoped_lock<std::mutex> lock(mLock);
         mConfigureWasCalled = true;
@@ -271,7 +271,7 @@
         // Find the associated viewport if exist.
         const std::optional<uint8_t> displayPort = getDeviceContext().getAssociatedDisplayPort();
         if (displayPort && (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
-            mViewport = config->getDisplayViewportByPort(*displayPort);
+            mViewport = config.getDisplayViewportByPort(*displayPort);
         }
 
         mStateChangedCondition.notify_all();
@@ -2319,7 +2319,7 @@
 TEST_F(InputDeviceTest, WhenNoMappersAreRegistered_DeviceIsIgnored) {
     // Configuration.
     InputReaderConfiguration config;
-    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, &config, 0);
+    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, config, 0);
 
     // Reset.
     unused += mDevice->reset(ARBITRARY_TIME);
@@ -2378,7 +2378,7 @@
     mapper2.setMetaState(AMETA_SHIFT_ON);
 
     InputReaderConfiguration config;
-    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, &config, 0);
+    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, config, 0);
 
     std::optional<std::string> propertyValue = mDevice->getConfiguration().getString("key");
     ASSERT_TRUE(propertyValue.has_value())
@@ -3669,7 +3669,7 @@
     addMapperAndConfigure<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
                                                AINPUT_KEYBOARD_TYPE_ALPHABETIC);
     InputReaderConfiguration config;
-    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, &config, 0);
+    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, config, 0);
 
     ASSERT_EQ("en", mDevice->getDeviceInfo().getKeyboardLayoutInfo()->languageTag);
     ASSERT_EQ("extended", mDevice->getDeviceInfo().getKeyboardLayoutInfo()->layoutType);
diff --git a/services/inputflinger/tests/fuzzers/CursorInputFuzzer.cpp b/services/inputflinger/tests/fuzzers/CursorInputFuzzer.cpp
index 0d5f30c..28873a3 100644
--- a/services/inputflinger/tests/fuzzers/CursorInputFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/CursorInputFuzzer.cpp
@@ -52,13 +52,13 @@
                 [&]() -> void { mapper.getSources(); },
                 [&]() -> void {
                     std::list<NotifyArgs> unused =
-                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), &policyConfig,
+                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), policyConfig,
                                                fdp->ConsumeIntegral<int32_t>());
                 },
                 [&]() -> void {
                     // Need to reconfigure with 0 or you risk a NPE.
                     std::list<NotifyArgs> unused =
-                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), &policyConfig, 0);
+                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), policyConfig, 0);
                     InputDeviceInfo info;
                     mapper.populateDeviceInfo(info);
                 },
@@ -71,7 +71,7 @@
 
                     // Need to reconfigure with 0 or you risk a NPE.
                     std::list<NotifyArgs> unused =
-                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), &policyConfig, 0);
+                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), policyConfig, 0);
                     RawEvent rawEvent{fdp->ConsumeIntegral<nsecs_t>(),
                                       fdp->ConsumeIntegral<nsecs_t>(),
                                       fdp->ConsumeIntegral<int32_t>(),
@@ -90,7 +90,7 @@
                 [&]() -> void {
                     // Need to reconfigure with 0 or you risk a NPE.
                     std::list<NotifyArgs> unused =
-                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), &policyConfig, 0);
+                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), policyConfig, 0);
                     mapper.getAssociatedDisplayId();
                 },
         })();
diff --git a/services/inputflinger/tests/fuzzers/FuzzContainer.h b/services/inputflinger/tests/fuzzers/FuzzContainer.h
index 76d2bcd..d42d11c 100644
--- a/services/inputflinger/tests/fuzzers/FuzzContainer.h
+++ b/services/inputflinger/tests/fuzzers/FuzzContainer.h
@@ -59,7 +59,7 @@
     void configureDevice() {
         nsecs_t arbitraryTime = mFdp->ConsumeIntegral<nsecs_t>();
         std::list<NotifyArgs> out;
-        out += mFuzzDevice->configure(arbitraryTime, &mPolicyConfig, 0);
+        out += mFuzzDevice->configure(arbitraryTime, mPolicyConfig, 0);
         out += mFuzzDevice->reset(arbitraryTime);
         for (const NotifyArgs& args : out) {
             mFuzzListener.notify(args);
diff --git a/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp b/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp
index 14cb8a5..00b44b5 100644
--- a/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp
@@ -64,7 +64,7 @@
                 [&]() -> void { mapper.getSources(); },
                 [&]() -> void {
                     std::list<NotifyArgs> unused =
-                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), &policyConfig,
+                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), policyConfig,
                                                fdp->ConsumeIntegral<uint32_t>());
                 },
                 [&]() -> void {
diff --git a/services/inputflinger/tests/fuzzers/MultiTouchInputFuzzer.cpp b/services/inputflinger/tests/fuzzers/MultiTouchInputFuzzer.cpp
index 8352a90..70908ff 100644
--- a/services/inputflinger/tests/fuzzers/MultiTouchInputFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/MultiTouchInputFuzzer.cpp
@@ -79,7 +79,7 @@
                 [&]() -> void { mapper.getSources(); },
                 [&]() -> void {
                     std::list<NotifyArgs> unused =
-                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), &policyConfig,
+                            mapper.reconfigure(fdp->ConsumeIntegral<nsecs_t>(), policyConfig,
                                                fdp->ConsumeIntegral<uint32_t>());
                 },
                 [&]() -> void {
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 3e12db6..8ddcfa1 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -130,7 +130,7 @@
 
         pacesetterVsyncSchedule = promotePacesetterDisplayLocked();
     }
-    applyNewVsyncSchedule(std::move(pacesetterVsyncSchedule));
+    applyNewVsyncScheduleIfNonNull(std::move(pacesetterVsyncSchedule));
 }
 
 void Scheduler::unregisterDisplay(PhysicalDisplayId displayId) {
@@ -149,7 +149,7 @@
 
         pacesetterVsyncSchedule = promotePacesetterDisplayLocked();
     }
-    applyNewVsyncSchedule(std::move(pacesetterVsyncSchedule));
+    applyNewVsyncScheduleIfNonNull(std::move(pacesetterVsyncSchedule));
 }
 
 void Scheduler::run() {
@@ -693,16 +693,17 @@
         pacesetterVsyncSchedule = promotePacesetterDisplayLocked(pacesetterIdOpt);
     }
 
-    applyNewVsyncSchedule(std::move(pacesetterVsyncSchedule));
+    applyNewVsyncScheduleIfNonNull(std::move(pacesetterVsyncSchedule));
 }
 
 std::shared_ptr<VsyncSchedule> Scheduler::promotePacesetterDisplayLocked(
         std::optional<PhysicalDisplayId> pacesetterIdOpt) {
     // TODO(b/241286431): Choose the pacesetter display.
+    const auto oldPacesetterDisplayIdOpt = mPacesetterDisplayId;
     mPacesetterDisplayId = pacesetterIdOpt.value_or(mRefreshRateSelectors.begin()->first);
     ALOGI("Display %s is the pacesetter", to_string(*mPacesetterDisplayId).c_str());
 
-    auto vsyncSchedule = getVsyncScheduleLocked(*mPacesetterDisplayId);
+    auto newVsyncSchedule = getVsyncScheduleLocked(*mPacesetterDisplayId);
     if (const auto pacesetterPtr = pacesetterSelectorPtrLocked()) {
         pacesetterPtr->setIdleTimerCallbacks(
                 {.platform = {.onReset = [this] { idleTimerCallback(TimerState::Reset); },
@@ -713,15 +714,28 @@
 
         pacesetterPtr->startIdleTimer();
 
+        // Track the new period, which may have changed due to switching to a
+        // new pacesetter or due to a hotplug event. In the former case, this
+        // is important so that VSYNC modulation does not get stuck in the
+        // initiated state if a transition started on the old pacesetter.
         const Fps refreshRate = pacesetterPtr->getActiveMode().modePtr->getFps();
-        vsyncSchedule->startPeriodTransition(mSchedulerCallback, refreshRate.getPeriod(),
-                                             true /* force */);
+        newVsyncSchedule->startPeriodTransition(mSchedulerCallback, refreshRate.getPeriod(),
+                                                true /* force */);
     }
-    return vsyncSchedule;
+    if (oldPacesetterDisplayIdOpt == mPacesetterDisplayId) {
+        return nullptr;
+    }
+    return newVsyncSchedule;
 }
 
-void Scheduler::applyNewVsyncSchedule(std::shared_ptr<VsyncSchedule> vsyncSchedule) {
-    onNewVsyncSchedule(vsyncSchedule->getDispatch());
+void Scheduler::applyNewVsyncScheduleIfNonNull(
+        std::shared_ptr<VsyncSchedule> pacesetterSchedulePtr) {
+    if (!pacesetterSchedulePtr) {
+        // The pacesetter has not changed, so there is no new VsyncSchedule to
+        // apply.
+        return;
+    }
+    onNewVsyncSchedule(pacesetterSchedulePtr->getDispatch());
     std::vector<android::EventThread*> threads;
     {
         std::lock_guard<std::mutex> lock(mConnectionsLock);
@@ -731,7 +745,7 @@
         }
     }
     for (auto* thread : threads) {
-        thread->onNewVsyncSchedule(vsyncSchedule);
+        thread->onNewVsyncSchedule(pacesetterSchedulePtr);
     }
 }
 
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 3423652..720a1cb 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -329,10 +329,12 @@
     // MessageQueue and EventThread need to use the new pacesetter's
     // VsyncSchedule, and this must happen while mDisplayLock is *not* locked,
     // or else we may deadlock with EventThread.
+    // Returns the new pacesetter's VsyncSchedule, or null if the pacesetter is
+    // unchanged.
     std::shared_ptr<VsyncSchedule> promotePacesetterDisplayLocked(
             std::optional<PhysicalDisplayId> pacesetterIdOpt = std::nullopt)
             REQUIRES(kMainThreadContext, mDisplayLock);
-    void applyNewVsyncSchedule(std::shared_ptr<VsyncSchedule>) EXCLUDES(mDisplayLock);
+    void applyNewVsyncScheduleIfNonNull(std::shared_ptr<VsyncSchedule>) EXCLUDES(mDisplayLock);
 
     // Blocks until the pacesetter's idle timer thread exits. `mDisplayLock` must not be locked by
     // the caller on the main thread to avoid deadlock, since the timer thread locks it before exit.
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index dc76b4c..0c43831 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -384,4 +384,23 @@
     }
 }
 
+TEST_F(SchedulerTest, changingPacesetterChangesVsyncSchedule) {
+    // Add a second display so we can change the pacesetter.
+    mScheduler->registerDisplay(kDisplayId2,
+                                std::make_shared<RefreshRateSelector>(kDisplay2Modes,
+                                                                      kDisplay2Mode60->getId()));
+    // Ensure that the pacesetter is the one we expect.
+    mScheduler->setPacesetterDisplay(kDisplayId1);
+
+    // Switching to the other will call onNewVsyncSchedule.
+    EXPECT_CALL(*mEventThread, onNewVsyncSchedule(mScheduler->getVsyncSchedule(kDisplayId2)))
+            .Times(1);
+    mScheduler->setPacesetterDisplay(kDisplayId2);
+}
+
+TEST_F(SchedulerTest, promotingSamePacesetterDoesNotChangeVsyncSchedule) {
+    EXPECT_CALL(*mEventThread, onNewVsyncSchedule(_)).Times(0);
+    mScheduler->setPacesetterDisplay(kDisplayId1);
+}
+
 } // namespace android::scheduler