Merge "Revert "Read from BufferReleaseChannel in background thread"" into main
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/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) {
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/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/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 4c3f4a6..d1a5663 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -401,18 +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 ||
@@ -561,8 +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 =
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/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/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 500f7b4..ab117b8 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -164,3 +164,10 @@
   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"
+}
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/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/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/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/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/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/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 0c297d9..a232228 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -5863,9 +5863,16 @@
         }
     }
 
-    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>
@@ -5899,36 +5906,6 @@
     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) {
@@ -6882,7 +6859,8 @@
     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;
     }
 
@@ -8431,9 +8409,6 @@
                                             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 282c8cf..873fac2 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -1128,9 +1128,6 @@
 
     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);
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/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 00e987f..ba2b888 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;