diff --git a/TEST_MAPPING b/TEST_MAPPING
index 260ee8d..f54f132 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -56,6 +56,9 @@
         },
         {
           "include-filter": "*RefreshRateOverlayTest.*"
+        },
+        {
+          "exclude-filter": "*ChildLayerTest#ChildrenSurviveParentDestruction"
         }
       ]
     },
diff --git a/cmds/flatland/GLHelper.cpp b/cmds/flatland/GLHelper.cpp
index 01f7d30..c163095 100644
--- a/cmds/flatland/GLHelper.cpp
+++ b/cmds/flatland/GLHelper.cpp
@@ -35,9 +35,12 @@
 GLHelper::~GLHelper() {
 }
 
-bool GLHelper::setUp(const ShaderDesc* shaderDescs, size_t numShaders) {
+bool GLHelper::setUp(const sp<IBinder>& displayToken, const ShaderDesc* shaderDescs,
+                     size_t numShaders) {
     bool result;
 
+    mDisplayToken = displayToken;
+
     mDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
     if (mDisplay == EGL_NO_DISPLAY) {
         fprintf(stderr, "eglGetDisplay error: %#x\n", eglGetError());
@@ -221,14 +224,8 @@
 }
 
 bool GLHelper::computeWindowScale(uint32_t w, uint32_t h, float* scale) {
-    const sp<IBinder> dpy = mSurfaceComposerClient->getInternalDisplayToken();
-    if (dpy == nullptr) {
-        fprintf(stderr, "SurfaceComposer::getInternalDisplayToken failed.\n");
-        return false;
-    }
-
     ui::DisplayMode mode;
-    status_t err = mSurfaceComposerClient->getActiveDisplayMode(dpy, &mode);
+    status_t err = mSurfaceComposerClient->getActiveDisplayMode(mDisplayToken, &mode);
     if (err != NO_ERROR) {
         fprintf(stderr, "SurfaceComposer::getActiveDisplayMode failed: %#x\n", err);
         return false;
diff --git a/cmds/flatland/GLHelper.h b/cmds/flatland/GLHelper.h
index d09463a..5194f50 100644
--- a/cmds/flatland/GLHelper.h
+++ b/cmds/flatland/GLHelper.h
@@ -44,7 +44,7 @@
 
     ~GLHelper();
 
-    bool setUp(const ShaderDesc* shaderDescs, size_t numShaders);
+    bool setUp(const sp<IBinder>& displayToken, const ShaderDesc* shaderDescs, size_t numShaders);
 
     void tearDown();
 
@@ -87,6 +87,8 @@
     size_t mNumShaders;
 
     GLuint mDitherTexture;
+
+    sp<IBinder> mDisplayToken;
 };
 
 } // namespace android
diff --git a/cmds/flatland/Main.cpp b/cmds/flatland/Main.cpp
index 7ceb397..6d14d56 100644
--- a/cmds/flatland/Main.cpp
+++ b/cmds/flatland/Main.cpp
@@ -20,6 +20,7 @@
 #include <gui/SurfaceControl.h>
 #include <gui/GLConsumer.h>
 #include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
 #include <ui/Fence.h>
 #include <utils/Trace.h>
 
@@ -34,9 +35,10 @@
 
 using namespace ::android;
 
-static uint32_t g_SleepBetweenSamplesMs = 0;
-static bool     g_PresentToWindow       = false;
-static size_t   g_BenchmarkNameLen      = 0;
+static uint32_t    g_SleepBetweenSamplesMs = 0;
+static bool        g_PresentToWindow       = false;
+static size_t      g_BenchmarkNameLen      = 0;
+static sp<IBinder> g_DisplayToken          = nullptr;
 
 struct BenchmarkDesc {
     // The name of the test.
@@ -393,7 +395,7 @@
         uint32_t h = mDesc.runHeights[mInstance];
 
         mGLHelper = new GLHelper();
-        result = mGLHelper->setUp(shaders, NELEMS(shaders));
+        result = mGLHelper->setUp(g_DisplayToken, shaders, NELEMS(shaders));
         if (!result) {
             return false;
         }
@@ -718,13 +720,17 @@
 }
 
 // Print the command usage help to stderr.
-static void showHelp(const char *cmd) {
-    fprintf(stderr, "usage: %s [options]\n", cmd);
-    fprintf(stderr, "options include:\n"
-                    "  -s N            sleep for N ms between samples\n"
-                    "  -d              display the test frame to a window\n"
-                    "  --help          print this helpful message and exit\n"
-            );
+static void showHelp(const char* cmd) {
+  fprintf(stderr, "usage: %s [options]\n", cmd);
+  fprintf(
+      stderr,
+      "options include:\n"
+      "  -s N            sleep for N ms between samples\n"
+      "  -d              display the test frame to a window\n"
+      "  -i display-id   specify a display ID to use for multi-display device\n"
+      "                  see \"dumpsys SurfaceFlinger --display-id\" for valid "
+      "display IDs\n"
+      "  --help          print this helpful message and exit\n");
 }
 
 int main(int argc, char** argv) {
@@ -733,6 +739,14 @@
         exit(0);
     }
 
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    if (ids.empty()) {
+        fprintf(stderr, "Failed to get ID for any displays.\n");
+        exit(3);
+    }
+
+    std::optional<PhysicalDisplayId> displayId;
+
     for (;;) {
         int ret;
         int option_index = 0;
@@ -741,7 +755,7 @@
             {     0,               0, 0,  0 }
         };
 
-        ret = getopt_long(argc, argv, "ds:",
+        ret = getopt_long(argc, argv, "ds:i:",
                           long_options, &option_index);
 
         if (ret < 0) {
@@ -757,6 +771,14 @@
                 g_SleepBetweenSamplesMs = atoi(optarg);
             break;
 
+            case 'i':
+                displayId = DisplayId::fromValue<PhysicalDisplayId>(atoll(optarg));
+                if (!displayId) {
+                    fprintf(stderr, "Invalid display ID: %s.\n", optarg);
+                    exit(4);
+                }
+            break;
+
             case 0:
                 if (strcmp(long_options[option_index].name, "help")) {
                     showHelp(argv[0]);
@@ -770,6 +792,22 @@
         }
     }
 
+    if (!displayId) { // no display id is specified
+        if (ids.size() == 1) {
+            displayId = ids.front();
+        } else {
+            fprintf(stderr, "Please specify a display ID for multi-display device.\n");
+            showHelp(argv[0]);
+            exit(5);
+        }
+    }
+
+    g_DisplayToken = SurfaceComposerClient::getPhysicalDisplayToken(*displayId);
+    if (g_DisplayToken == nullptr) {
+        fprintf(stderr, "SurfaceComposer::getPhysicalDisplayToken failed.\n");
+        exit(6);
+    }
+
     g_BenchmarkNameLen = maxBenchmarkNameLen();
 
     printf(" cmdline:");
@@ -782,4 +820,6 @@
         fprintf(stderr, "exiting due to error.\n");
         return 1;
     }
+
+    return 0;
 }
diff --git a/cmds/surfacereplayer/Android.bp b/cmds/surfacereplayer/Android.bp
deleted file mode 100644
index 34fc8b1..0000000
--- a/cmds/surfacereplayer/Android.bp
+++ /dev/null
@@ -1,13 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_native_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_native_license"],
-}
-
-subdirs = [
-    "proto",
-    "replayer",
-]
diff --git a/cmds/surfacereplayer/OWNERS b/cmds/surfacereplayer/OWNERS
deleted file mode 100644
index 32bcc83..0000000
--- a/cmds/surfacereplayer/OWNERS
+++ /dev/null
@@ -1 +0,0 @@
-include platform/frameworks/native:/services/surfaceflinger/OWNERS
diff --git a/cmds/surfacereplayer/proto/Android.bp b/cmds/surfacereplayer/proto/Android.bp
deleted file mode 100644
index 23b54ee..0000000
--- a/cmds/surfacereplayer/proto/Android.bp
+++ /dev/null
@@ -1,23 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_native_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_native_license"],
-}
-
-cc_library_static {
-    name: "libtrace_proto",
-    srcs: [
-        "src/trace.proto",
-    ],
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
-    proto: {
-        type: "lite",
-        export_proto_headers: true,
-    },
-}
diff --git a/cmds/surfacereplayer/proto/src/trace.proto b/cmds/surfacereplayer/proto/src/trace.proto
deleted file mode 100644
index a177027..0000000
--- a/cmds/surfacereplayer/proto/src/trace.proto
+++ /dev/null
@@ -1,225 +0,0 @@
-syntax = "proto2";
-option optimize_for = LITE_RUNTIME;
-package android.surfaceflinger;
-
-message Trace {
-    repeated Increment increment = 1;
-}
-
-message Increment {
-    required int64 time_stamp = 1;
-
-    oneof increment {
-        Transaction        transaction          = 2;
-        SurfaceCreation    surface_creation     = 3;
-        SurfaceDeletion    surface_deletion     = 4;
-        BufferUpdate       buffer_update        = 5;
-        VSyncEvent         vsync_event          = 6;
-        DisplayCreation    display_creation     = 7;
-        DisplayDeletion    display_deletion     = 8;
-        PowerModeUpdate    power_mode_update    = 9;
-    }
-}
-
-message Transaction {
-    repeated SurfaceChange surface_change = 1;
-    repeated DisplayChange display_change = 2;
-
-    required bool   synchronous      = 3;
-    required bool   animation        = 4;
-    optional Origin origin           = 5;
-    optional uint64 id               = 6;
-}
-
-message SurfaceChange {
-    required int32 id = 1;
-    reserved 7;
-    oneof SurfaceChange {
-        PositionChange              position                = 2;
-        SizeChange                  size                    = 3;
-        AlphaChange                 alpha                   = 4;
-        LayerChange                 layer                   = 5;
-        CropChange                  crop                    = 6;
-        MatrixChange                matrix                  = 8;
-        TransparentRegionHintChange transparent_region_hint = 10;
-        LayerStackChange            layer_stack             = 11;
-        HiddenFlagChange            hidden_flag             = 12;
-        OpaqueFlagChange            opaque_flag             = 13;
-        SecureFlagChange            secure_flag             = 14;
-        CornerRadiusChange          corner_radius           = 16;
-        ReparentChange              reparent                = 17;
-        RelativeParentChange        relative_parent         = 18;
-        BackgroundBlurRadiusChange  background_blur_radius  = 20;
-        ShadowRadiusChange          shadow_radius           = 21;
-        BlurRegionsChange           blur_regions            = 22;
-        TrustedOverlayChange        trusted_overlay         = 23;
-    }
-}
-
-message PositionChange {
-    required float x = 1;
-    required float y = 2;
-}
-
-message SizeChange {
-    required uint32 w = 1;
-    required uint32 h = 2;
-}
-
-message AlphaChange {
-    required float alpha = 1;
-}
-
-message CornerRadiusChange {
-    required float corner_radius = 1;
-}
-
-message BackgroundBlurRadiusChange {
-    required float background_blur_radius = 1;
-}
-
-message LayerChange {
-    required uint32 layer = 1;
-}
-
-message CropChange {
-    required Rectangle rectangle = 1;
-}
-
-message MatrixChange {
-    required float dsdx = 1;
-    required float dtdx = 2;
-    required float dsdy = 3;
-    required float dtdy = 4;
-}
-
-message TransparentRegionHintChange {
-    repeated Rectangle region = 1;
-}
-
-message LayerStackChange {
-    required uint32 layer_stack = 1;
-}
-
-message DisplayFlagsChange {
-    required uint32 flags = 1;
-}
-
-message HiddenFlagChange {
-    required bool hidden_flag = 1;
-}
-
-message OpaqueFlagChange {
-    required bool opaque_flag = 1;
-}
-
-message SecureFlagChange {
-    required bool secure_flag = 1;
-}
-
-message DisplayChange {
-    required int32 id = 1;
-
-    oneof DisplayChange {
-        DispSurfaceChange surface     = 2;
-        LayerStackChange  layer_stack = 3;
-        SizeChange        size        = 4;
-        ProjectionChange  projection  = 5;
-        DisplayFlagsChange flags      = 6;
-    }
-}
-
-message DispSurfaceChange {
-    required uint64 buffer_queue_id   = 1;
-    required string buffer_queue_name = 2;
-}
-
-message ProjectionChange {
-    required int32     orientation = 1;
-    required Rectangle viewport    = 2;
-    required Rectangle frame       = 3;
-}
-
-message Rectangle {
-    required int32 left   = 1;
-    required int32 top    = 2;
-    required int32 right  = 3;
-    required int32 bottom = 4;
-}
-
-message SurfaceCreation {
-    required int32  id   = 1;
-    required string name = 2;
-    required uint32 w    = 3;
-    required uint32 h    = 4;
-}
-
-message SurfaceDeletion {
-    required int32 id = 1;
-}
-
-message BufferUpdate {
-    required int32  id           = 1;
-    required uint32 w            = 2;
-    required uint32 h            = 3;
-    required uint64 frame_number = 4;
-}
-
-message VSyncEvent {
-    required int64 when = 1;
-}
-
-message DisplayCreation {
-    required int32     id                = 1;
-    required string    name              = 2;
-    optional uint64    display_id        = 3;
-    required bool      is_secure         = 4;
-}
-
-message DisplayDeletion {
-    required int32 id = 1;
-}
-
-message PowerModeUpdate {
-    required int32  id   = 1;
-    required int32  mode = 2;
-}
-
-message ReparentChange {
-    required int32 parent_id = 1;
-}
-
-message RelativeParentChange {
-    required int32 relative_parent_id = 1;
-    required int32 z = 2;
-}
-
-message ShadowRadiusChange {
-    required float radius = 1;
-}
-
-message TrustedOverlayChange {
-    required float is_trusted_overlay = 1;
-}
-
-message BlurRegionsChange {
-    repeated BlurRegionChange blur_regions = 1;
-}
-
-message BlurRegionChange {
-    required uint32 blur_radius = 1;
-    required float corner_radius_tl = 2;
-    required float corner_radius_tr = 3;
-    required float corner_radius_bl = 4;
-    required float corner_radius_br = 5;
-    required float alpha = 6;
-    required int32 left = 7;
-    required int32 top = 8;
-    required int32 right = 9;
-    required int32 bottom = 10;
-}
-
-message Origin {
-    required int32 pid = 1;
-    required int32 uid = 2;
-}
diff --git a/cmds/surfacereplayer/replayer/Android.bp b/cmds/surfacereplayer/replayer/Android.bp
deleted file mode 100644
index 3985230..0000000
--- a/cmds/surfacereplayer/replayer/Android.bp
+++ /dev/null
@@ -1,71 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_native_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_native_license"],
-}
-
-cc_library_shared {
-    name: "libsurfacereplayer",
-    srcs: [
-        "BufferQueueScheduler.cpp",
-        "Event.cpp",
-        "Replayer.cpp",
-    ],
-    cppflags: [
-        "-Werror",
-        "-Wno-unused-parameter",
-        "-Wno-format",
-	"-Wno-c++98-compat-pedantic",
-	"-Wno-float-conversion",
-	"-Wno-disabled-macro-expansion",
-	"-Wno-float-equal",
-	"-Wno-sign-conversion",
-	"-Wno-padded",
-    ],
-    static_libs: [
-        "libtrace_proto",
-    ],
-    shared_libs: [
-        "libEGL",
-        "libGLESv2",
-        "libbinder",
-        "liblog",
-        "libcutils",
-        "libgui",
-        "libui",
-        "libutils",
-        "libprotobuf-cpp-lite",
-        "libbase",
-        "libnativewindow",
-    ],
-    export_include_dirs: [
-        ".",
-    ],
-}
-
-cc_binary {
-    name: "surfacereplayer",
-    srcs: [
-        "Main.cpp",
-    ],
-    shared_libs: [
-        "libprotobuf-cpp-lite",
-        "libsurfacereplayer",
-        "libutils",
-        "libgui",
-    ],
-    static_libs: [
-        "libtrace_proto",
-    ],
-    cppflags: [
-        "-Werror",
-        "-Wno-unused-parameter",
-	"-Wno-c++98-compat-pedantic",
-	"-Wno-float-conversion",
-	"-Wno-disabled-macro-expansion",
-	"-Wno-float-equal",
-    ],
-}
diff --git a/cmds/surfacereplayer/replayer/BufferQueueScheduler.cpp b/cmds/surfacereplayer/replayer/BufferQueueScheduler.cpp
deleted file mode 100644
index 77de8dc..0000000
--- a/cmds/surfacereplayer/replayer/BufferQueueScheduler.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#define LOG_TAG "BufferQueueScheduler"
-
-#include "BufferQueueScheduler.h"
-
-#include <android/native_window.h>
-#include <gui/Surface.h>
-
-using namespace android;
-
-BufferQueueScheduler::BufferQueueScheduler(
-        const sp<SurfaceControl>& surfaceControl, const HSV& color, int id)
-      : mSurfaceControl(surfaceControl), mColor(color), mSurfaceId(id), mContinueScheduling(true) {}
-
-void BufferQueueScheduler::startScheduling() {
-    ALOGV("Starting Scheduler for %d Layer", mSurfaceId);
-    std::unique_lock<std::mutex> lock(mMutex);
-    if (mSurfaceControl == nullptr) {
-        mCondition.wait(lock, [&] { return (mSurfaceControl != nullptr); });
-    }
-
-    while (mContinueScheduling) {
-        while (true) {
-            if (mBufferEvents.empty()) {
-                break;
-            }
-
-            BufferEvent event = mBufferEvents.front();
-            lock.unlock();
-
-            bufferUpdate(event.dimensions);
-            fillSurface(event.event);
-            mColor.modulate();
-            lock.lock();
-            mBufferEvents.pop();
-        }
-        mCondition.wait(lock);
-    }
-}
-
-void BufferQueueScheduler::addEvent(const BufferEvent& event) {
-    std::lock_guard<std::mutex> lock(mMutex);
-    mBufferEvents.push(event);
-    mCondition.notify_one();
-}
-
-void BufferQueueScheduler::stopScheduling() {
-    std::lock_guard<std::mutex> lock(mMutex);
-    mContinueScheduling = false;
-    mCondition.notify_one();
-}
-
-void BufferQueueScheduler::setSurfaceControl(
-        const sp<SurfaceControl>& surfaceControl, const HSV& color) {
-    std::lock_guard<std::mutex> lock(mMutex);
-    mSurfaceControl = surfaceControl;
-    mColor = color;
-    mCondition.notify_one();
-}
-
-void BufferQueueScheduler::bufferUpdate(const Dimensions& dimensions) {
-    sp<Surface> s = mSurfaceControl->getSurface();
-    s->setBuffersDimensions(dimensions.width, dimensions.height);
-}
-
-void BufferQueueScheduler::fillSurface(const std::shared_ptr<Event>& event) {
-    ANativeWindow_Buffer outBuffer;
-    sp<Surface> s = mSurfaceControl->getSurface();
-
-    status_t status = s->lock(&outBuffer, nullptr);
-
-    if (status != NO_ERROR) {
-        ALOGE("fillSurface: failed to lock buffer, (%d)", status);
-        return;
-    }
-
-    auto color = mColor.getRGB();
-
-    auto img = reinterpret_cast<uint8_t*>(outBuffer.bits);
-    for (int y = 0; y < outBuffer.height; y++) {
-        for (int x = 0; x < outBuffer.width; x++) {
-            uint8_t* pixel = img + (4 * (y * outBuffer.stride + x));
-            pixel[0] = color.r;
-            pixel[1] = color.g;
-            pixel[2] = color.b;
-            pixel[3] = LAYER_ALPHA;
-        }
-    }
-
-    event->readyToExecute();
-
-    status = s->unlockAndPost();
-
-    ALOGE_IF(status != NO_ERROR, "fillSurface: failed to unlock and post buffer, (%d)", status);
-}
diff --git a/cmds/surfacereplayer/replayer/BufferQueueScheduler.h b/cmds/surfacereplayer/replayer/BufferQueueScheduler.h
deleted file mode 100644
index cb20fcc..0000000
--- a/cmds/surfacereplayer/replayer/BufferQueueScheduler.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SURFACEREPLAYER_BUFFERQUEUESCHEDULER_H
-#define ANDROID_SURFACEREPLAYER_BUFFERQUEUESCHEDULER_H
-
-#include "Color.h"
-#include "Event.h"
-
-#include <gui/SurfaceControl.h>
-
-#include <utils/StrongPointer.h>
-
-#include <atomic>
-#include <condition_variable>
-#include <mutex>
-#include <queue>
-#include <utility>
-
-namespace android {
-
-auto constexpr LAYER_ALPHA = 190;
-
-struct Dimensions {
-    Dimensions() = default;
-    Dimensions(int w, int h) : width(w), height(h) {}
-
-    int width = 0;
-    int height = 0;
-};
-
-struct BufferEvent {
-    BufferEvent() = default;
-    BufferEvent(std::shared_ptr<Event> e, Dimensions d) : event(e), dimensions(d) {}
-
-    std::shared_ptr<Event> event;
-    Dimensions dimensions;
-};
-
-class BufferQueueScheduler {
-  public:
-    BufferQueueScheduler(const sp<SurfaceControl>& surfaceControl, const HSV& color, int id);
-
-    void startScheduling();
-    void addEvent(const BufferEvent&);
-    void stopScheduling();
-
-    void setSurfaceControl(const sp<SurfaceControl>& surfaceControl, const HSV& color);
-
-  private:
-    void bufferUpdate(const Dimensions& dimensions);
-
-    // Lock and fill the surface, block until the event is signaled by the main loop,
-    // then unlock and post the buffer.
-    void fillSurface(const std::shared_ptr<Event>& event);
-
-    sp<SurfaceControl> mSurfaceControl;
-    HSV mColor;
-    const int mSurfaceId;
-
-    bool mContinueScheduling;
-
-    std::queue<BufferEvent> mBufferEvents;
-    std::mutex mMutex;
-    std::condition_variable mCondition;
-};
-
-}  // namespace android
-#endif
diff --git a/cmds/surfacereplayer/replayer/Color.h b/cmds/surfacereplayer/replayer/Color.h
deleted file mode 100644
index ce644be..0000000
--- a/cmds/surfacereplayer/replayer/Color.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SURFACEREPLAYER_COLOR_H
-#define ANDROID_SURFACEREPLAYER_COLOR_H
-
-#include <cmath>
-#include <cstdlib>
-
-namespace android {
-
-constexpr double modulateFactor = .0001;
-constexpr double modulateLimit = .80;
-
-struct RGB {
-    RGB(uint8_t rIn, uint8_t gIn, uint8_t bIn) : r(rIn), g(gIn), b(bIn) {}
-
-    uint8_t r = 0;
-    uint8_t g = 0;
-    uint8_t b = 0;
-};
-
-struct HSV {
-    HSV() = default;
-    HSV(double hIn, double sIn, double vIn) : h(hIn), s(sIn), v(vIn) {}
-
-    double h = 0;
-    double s = 0;
-    double v = 0;
-
-    RGB getRGB() const;
-
-    bool modulateUp = false;
-
-    void modulate();
-};
-
-void inline HSV::modulate() {
-    if(modulateUp) {
-        v += modulateFactor;
-    } else {
-        v -= modulateFactor;
-    }
-
-    if(v <= modulateLimit || v >= 1) {
-        modulateUp = !modulateUp;
-    }
-}
-
-inline RGB HSV::getRGB() const {
-    using namespace std;
-    double r = 0, g = 0, b = 0;
-
-    if (s == 0) {
-        r = v;
-        g = v;
-        b = v;
-    } else {
-        auto tempHue = static_cast<int>(h) % 360;
-        tempHue = tempHue / 60;
-
-        int i = static_cast<int>(trunc(tempHue));
-        double f = h - i;
-
-        double x = v * (1.0 - s);
-        double y = v * (1.0 - (s * f));
-        double z = v * (1.0 - (s * (1.0 - f)));
-
-        switch (i) {
-            case 0:
-                r = v;
-                g = z;
-                b = x;
-                break;
-
-            case 1:
-                r = y;
-                g = v;
-                b = x;
-                break;
-
-            case 2:
-                r = x;
-                g = v;
-                b = z;
-                break;
-
-            case 3:
-                r = x;
-                g = y;
-                b = v;
-                break;
-
-            case 4:
-                r = z;
-                g = x;
-                b = v;
-                break;
-
-            default:
-                r = v;
-                g = x;
-                b = y;
-                break;
-        }
-    }
-
-    return RGB(round(r * 255), round(g * 255), round(b * 255));
-}
-}
-#endif
diff --git a/cmds/surfacereplayer/replayer/Event.cpp b/cmds/surfacereplayer/replayer/Event.cpp
deleted file mode 100644
index 64db5f0..0000000
--- a/cmds/surfacereplayer/replayer/Event.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "Event.h"
-
-using namespace android;
-using Increment = surfaceflinger::Increment;
-
-Event::Event(Increment::IncrementCase type) : mIncrementType(type) {}
-
-void Event::readyToExecute() {
-    changeState(Event::EventState::Waiting);
-    waitUntil(Event::EventState::Signaled);
-    changeState(Event::EventState::Running);
-}
-
-void Event::complete() {
-    waitUntil(Event::EventState::Waiting);
-    changeState(Event::EventState::Signaled);
-    waitUntil(Event::EventState::Running);
-}
-
-void Event::waitUntil(Event::EventState state) {
-    std::unique_lock<std::mutex> lock(mLock);
-    mCond.wait(lock, [this, state] { return (mState == state); });
-}
-
-void Event::changeState(Event::EventState state) {
-    std::unique_lock<std::mutex> lock(mLock);
-    mState = state;
-    lock.unlock();
-
-    mCond.notify_one();
-}
-
-Increment::IncrementCase Event::getIncrementType() {
-    return mIncrementType;
-}
diff --git a/cmds/surfacereplayer/replayer/Event.h b/cmds/surfacereplayer/replayer/Event.h
deleted file mode 100644
index 09a7c24..0000000
--- a/cmds/surfacereplayer/replayer/Event.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SURFACEREPLAYER_EVENT_H
-#define ANDROID_SURFACEREPLAYER_EVENT_H
-
-#include <frameworks/native/cmds/surfacereplayer/proto/src/trace.pb.h>
-
-#include <condition_variable>
-#include <mutex>
-
-namespace android {
-
-using Increment = surfaceflinger::Increment;
-
-class Event {
-  public:
-    Event(Increment::IncrementCase);
-
-    enum class EventState {
-        SettingUp,  // Completing as much time-independent work as possible
-        Waiting,    // Waiting for signal from main thread to finish execution
-        Signaled,   // Signaled by main thread, about to immediately switch to Running
-        Running     // Finishing execution of rest of work
-    };
-
-    void readyToExecute();
-    void complete();
-
-    Increment::IncrementCase getIncrementType();
-
-  private:
-    void waitUntil(EventState state);
-    void changeState(EventState state);
-
-    std::mutex mLock;
-    std::condition_variable mCond;
-
-    EventState mState = EventState::SettingUp;
-
-    Increment::IncrementCase mIncrementType;
-};
-}
-#endif
diff --git a/cmds/surfacereplayer/replayer/Main.cpp b/cmds/surfacereplayer/replayer/Main.cpp
deleted file mode 100644
index fbfcacf..0000000
--- a/cmds/surfacereplayer/replayer/Main.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Replayer - Main.cpp
- *
- * 1. Get flags from command line
- * 2. Commit actions or settings based on the flags
- * 3. Initalize a replayer object with the filename passed in
- * 4. Replay
- * 5. Exit successfully or print error statement
- */
-
-#include <Replayer.h>
-
-#include <csignal>
-#include <iostream>
-#include <stdlib.h>
-#include <unistd.h>
-
-using namespace android;
-
-void printHelpMenu() {
-    std::cout << "SurfaceReplayer options:\n";
-    std::cout << "Usage: surfacereplayer [OPTIONS...] <TRACE FILE>\n";
-    std::cout << "  File path must be absolute" << std::endl << std::endl;
-
-    std::cout << "  -m  Stops the replayer at the start of the trace and switches ";
-                 "to manual replay\n";
-
-    std::cout << "\n  -t [Number of Threads]  Specifies the number of threads to be used while "
-                 "replaying (default is " << android::DEFAULT_THREADS << ")\n";
-
-    std::cout << "\n  -s [Timestamp]  Specify at what timestamp should the replayer switch "
-                 "to manual replay\n";
-
-    std::cout << "  -n  Ignore timestamps and run through trace as fast as possible\n";
-
-    std::cout << "  -l  Indefinitely loop the replayer\n";
-
-    std::cout << "  -h  Display help menu\n";
-
-    std::cout << std::endl;
-}
-
-int main(int argc, char** argv) {
-    std::string filename;
-    bool loop = false;
-    bool wait = true;
-    bool pauseBeginning = false;
-    int numThreads = DEFAULT_THREADS;
-    long stopHere = -1;
-
-    int opt = 0;
-    while ((opt = getopt(argc, argv, "mt:s:nlh?")) != -1) {
-        switch (opt) {
-            case 'm':
-                pauseBeginning = true;
-                break;
-            case 't':
-                numThreads = atoi(optarg);
-                break;
-            case 's':
-                stopHere = atol(optarg);
-                break;
-            case 'n':
-                wait = false;
-                break;
-            case 'l':
-                loop = true;
-                break;
-            case 'h':
-            case '?':
-                printHelpMenu();
-                exit(0);
-            default:
-                std::cerr << "Invalid argument...exiting" << std::endl;
-                printHelpMenu();
-                exit(0);
-        }
-    }
-
-    char** input = argv + optind;
-    if (input[0] == nullptr) {
-        std::cerr << "No trace file provided...exiting" << std::endl;
-        abort();
-    }
-    filename.assign(input[0]);
-
-    status_t status = NO_ERROR;
-    do {
-        android::Replayer r(filename, pauseBeginning, numThreads, wait, stopHere);
-        status = r.replay();
-    } while(loop);
-
-    if (status == NO_ERROR) {
-        std::cout << "Successfully finished replaying trace" << std::endl;
-    } else {
-        std::cerr << "Trace replayer returned error: " << status << std::endl;
-    }
-
-    return 0;
-}
diff --git a/cmds/surfacereplayer/replayer/README.md b/cmds/surfacereplayer/replayer/README.md
deleted file mode 100644
index 893f0dc..0000000
--- a/cmds/surfacereplayer/replayer/README.md
+++ /dev/null
@@ -1,262 +0,0 @@
-SurfaceReplayer Documentation
-===================
-
-[go/SurfaceReplayer](go/SurfaceReplayer)
-
-SurfaceReplayer is a playback mechanism that allows the replaying of traces recorded by
-[SurfaceInterceptor](go/SurfaceInterceptor) from SurfaceFlinger. It specifically replays
-
-* Creation and deletion of surfaces/displays
-* Alterations to the surfaces/displays called Transactions
-* Buffer Updates to surfaces
-* VSync events
-
-At their specified times to be as close to the original trace.
-
-Usage
---------
-
-###Creating a trace
-
-SurfaceInterceptor is the mechanism used to create traces. The device needs to be rooted in order to
-utilize it. To allow it to write to the device, run
-
-`setenforce 0`
-
-To start recording a trace, run
-
-`service call SurfaceFlinger 1020 i32 1`
-
-To stop recording, run
-
-`service call SurfaceFlinger 1020 i32 0`
-
-The default location for the trace is `/data/SurfaceTrace.dat`
-
-###Executable
-
-To replay a specific trace, execute
-
-`/data/local/tmp/surfacereplayer /absolute/path/to/trace`
-
-inside the android shell. This will replay the full trace and then exit. Running this command
-outside of the shell by prepending `adb shell` will not allow for manual control and will not turn
-off VSync injections if it interrupted in any way other than fully replaying the trace
-
-The replay will not fill surfaces with their contents during the capture. Rather they are given a
-random color which will be the same every time the trace is replayed. Surfaces modulate their color
-at buffer updates.
-
-**Options:**
-
-- -m    pause the replayer at the start of the trace for manual replay
-- -t [Number of Threads] uses specified number of threads to queue up actions (default is 3)
-- -s [Timestamp] switches to manual replay at specified timestamp
-- -n    Ignore timestamps and run through trace as fast as possible
-- -l    Indefinitely loop the replayer
-- -h    displays help menu
-
-**Manual Replay:**
-When replaying, if the user presses CTRL-C, the replay will stop and can be manually controlled
-by the user. Pressing CTRL-C again will exit the replayer.
-
-Manual replaying is similar to debugging in gdb. A prompt is presented and the user is able to
-input commands to choose how to proceed by hitting enter after inputting a command. Pressing enter
-without inputting a command repeats the previous command.
-
-- n  - steps the replayer to the next VSync event
-- ni - steps the replayer to the next increment
-- c  - continues normal replaying
-- c [milliseconds] - continue until specified number of milliseconds have passed
-- s [timestamp]    - continue and stop at specified timestamp
-- l  - list out timestamp of current increment
-- h  - displays help menu
-
-###Shared Library
-
-To use the shared library include these shared libraries
-
-`libsurfacereplayer`
-`libprotobuf-cpp-full`
-`libutils`
-
-And the static library
-
-`libtrace_proto`
-
-Include the replayer header at the top of your file
-
-`#include <replayer/Replayer.h>`
-
-There are two constructors for the replayer
-
-`Replayer(std::string& filename, bool replayManually, int numThreads, bool wait, nsecs_t stopHere)`
-`Replayer(Trace& trace, ... ditto ...)`
-
-The first constructor takes in the filepath where the trace is located and loads in the trace
-object internally.
-- replayManually - **True**: if the replayer will immediately switch to manual replay at the start
-- numThreads - Number of worker threads the replayer will use.
-- wait - **False**: Replayer ignores waits in between increments
-- stopHere - Time stamp of where the replayer should run to then switch to manual replay
-
-The second constructor includes all of the same parameters but takes in a preloaded trace object.
-To use add
-
-`#include <frameworks/native/cmds/surfacereplayer/proto/src/trace.pb.h>`
-
-To your file
-
-After initializing the Replayer call
-
-    replayer.replay();
-
-And the trace will start replaying. Once the trace is finished replaying, the function will return.
-The layers that are visible at the end of the trace will remain on screen until the program
-terminates.
-
-
-**If VSyncs are broken after running the replayer** that means `enableVSyncInjections(false)` was
-never executed. This can be fixed by executing
-
-`service call SurfaceFlinger 23 i32 0`
-
-in the android shell
-
-Code Breakdown
--------------
-
-The Replayer is composed of 5 components.
-
-- The data format of the trace (Trace.proto)
-- The Replayer object (Replayer.cpp)
-- The synchronization mechanism to signal threads within the Replayer (Event.cpp)
-- The scheduler for buffer updates per surface (BufferQueueScheduler.cpp)
-- The Main executable (Main.cpp)
-
-### Traces
-
-Traces are represented as a protobuf message located in surfacereplayer/proto/src.
-
-**Traces** contain *repeated* **Increments** (events that have occurred in SurfaceFlinger).
-**Increments** contain the time stamp of when it occurred and a *oneof* which can be a
-
- - Transaction
- - SurfaceCreation
- - SurfaceDeletion
- - DisplayCreation
- - DisplayDeleteion
- - BufferUpdate
- - VSyncEvent
- - PowerModeUpdate
-
-**Transactions** contain whether the transaction was synchronous or animated and *repeated*
-**SurfaceChanges** and **DisplayChanges**
-
-- **SurfaceChanges** contain an id of the surface being manipulated and can be changes such as
-position, alpha, hidden, size, etc.
-- **DisplayChanges** contain the id of the display being manipulated and can be changes such as
-size, layer stack, projection, etc.
-
-**Surface/Display Creation** contain the id of the surface/display and the name of the
-surface/display
-
-**Surface/Display Deletion** contain the id of the surface/display to be deleted
-
-**Buffer Updates** contain the id of the surface who's buffer is being updated, the size of the
-buffer, and the frame number.
-
-**VSyncEvents** contain when the VSync event has occurred.
-
-**PowerModeUpdates** contain the id of the display being updated and what mode it is being
-changed to.
-
-To output the contents of a trace in a readable format, execute
-
-`**aprotoc** --decode=Trace \
--I=$ANDROID_BUILD_TOP/frameworks/native/cmds/surfacereplayer/proto/src \
-$ANDROID_BUILD_TOP/frameworks/native/cmds/surfacereplayer/proto/src/trace.proto \
- < **YourTraceFile.dat** > **YourOutputName.txt**`
-
-
-###Replayer
-
-Fundamentally the replayer loads a trace and iterates through each increment, waiting the required
-amount of time until the increment should be executed, then executing the increment. The first
-increment in a trace does not start at 0, rather the replayer treats its time stamp as time 0 and
-goes from there.
-
-Increments from the trace are played asynchronously rather than one by one, being dispatched by
-the main thread, queued up in a thread pool and completed when the main thread deems they are
-ready to finish execution.
-
-When an increment is dispatched, it completes as much work as it can before it has to be
-synchronized (e.g. prebaking a buffer for a BufferUpdate). When it gets to a critical action
-(e.g. locking and pushing a buffer), it waits for the main thread to complete it using an Event
-object. The main thread holds a queue of these Event objects and completes the
-corresponding Event base on its time stamp. After completing an increment, the main thread will
-dispatch another increment and continue.
-
-The main thread's execution flow is outlined below
-
-    initReplay() //queue up the initial increments
-    while(!pendingIncrements.empty()) { //while increments remaining
-        event = pendingIncrement.pop();
-        wait(event.time_stamp(); //waitUntil it is time to complete this increment
-
-        event.complete() //signal to let event finish
-        if(increments remaing()) {
-            dispatchEvent() //queue up another increment
-        }
-    }
-
-A worker thread's flow looks like so
-
-    //dispatched!
-    Execute non-time sensitive work here
-    ...
-    event.readyToExecute() //time sensitive point...waiting for Main Thread
-    ...
-    Finish execution
-
-
-### Event
-
-An Event is a simple synchronization mechanism used to facilitate communication between the main
-and worker threads. Every time an increment is dispatched, an Event object is also created.
-
-An Event can be in 4 different states:
-
-- **SettingUp** - The worker is in the process of completing all non-time sensitive work
-- **Waiting** - The worker is waiting on the main thread to signal it.
-- **Signaled** - The worker has just been signaled by the main thread
-- **Running** - The worker is running again and finishing the rest of its work.
-
-When the main thread wants to finish the execution of a worker, the worker can either still be
-**SettingUp**, in which the main thread will wait, or the worker will be **Waiting**, in which the
-main thread will **Signal** it to complete. The worker thread changes itself to the **Running**
-state once **Signaled**. This last step exists in order to communicate back to the main thread that
-the worker thread has actually started completing its execution, rather than being preempted right
-after signalling. Once this happens, the main thread schedules the next worker. This makes sure
-there is a constant amount of workers running at one time.
-
-This activity is encapsulated in the `readyToExecute()` and `complete()` functions called by the
-worker and main thread respectively.
-
-### BufferQueueScheduler
-
-During a **BuferUpdate**, the worker thread will wait until **Signaled** to unlock and post a
-buffer that has been prefilled during the **SettingUp** phase. However if there are two sequential
-**BufferUpdates** that act on the same surface, both threads will try to lock a buffer and fill it,
-which isn't possible and will cause a deadlock. The BufferQueueScheduler solves this problem by
-handling when **BufferUpdates** should be scheduled, making sure that they don't overlap.
-
-When a surface is created, a BufferQueueScheduler is also created along side it. Whenever a
-**BufferUpdate** is read, it schedules the event onto its own internal queue and then schedules one
-every time an Event is completed.
-
-### Main
-
-The main exectuable reads in the command line arguments. Creates the Replayer using those
-arguments. Executes `replay()` on the Replayer. If there are no errors while replaying it will exit
-gracefully, if there are then it will report the error and then exit.
diff --git a/cmds/surfacereplayer/replayer/Replayer.h b/cmds/surfacereplayer/replayer/Replayer.h
deleted file mode 100644
index d62522a..0000000
--- a/cmds/surfacereplayer/replayer/Replayer.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SURFACEREPLAYER_H
-#define ANDROID_SURFACEREPLAYER_H
-
-#include "BufferQueueScheduler.h"
-#include "Color.h"
-#include "Event.h"
-
-#include <frameworks/native/cmds/surfacereplayer/proto/src/trace.pb.h>
-
-#include <gui/SurfaceComposerClient.h>
-#include <gui/SurfaceControl.h>
-
-#include <utils/Errors.h>
-#include <utils/StrongPointer.h>
-
-#include <stdatomic.h>
-#include <condition_variable>
-#include <memory>
-#include <mutex>
-#include <queue>
-#include <thread>
-#include <unordered_map>
-#include <utility>
-
-using namespace android::surfaceflinger;
-
-namespace android {
-
-const auto DEFAULT_PATH = "/data/local/tmp/SurfaceTrace.dat";
-const auto RAND_COLOR_SEED = 700;
-const auto DEFAULT_THREADS = 3;
-
-typedef int32_t layer_id;
-typedef int32_t display_id;
-
-typedef google::protobuf::RepeatedPtrField<SurfaceChange> SurfaceChanges;
-typedef google::protobuf::RepeatedPtrField<DisplayChange> DisplayChanges;
-
-class Replayer {
-  public:
-    Replayer(const std::string& filename, bool replayManually = false,
-            int numThreads = DEFAULT_THREADS, bool wait = true, nsecs_t stopHere = -1);
-    Replayer(const Trace& trace, bool replayManually = false, int numThreads = DEFAULT_THREADS,
-            bool wait = true, nsecs_t stopHere = -1);
-
-    status_t replay();
-
-  private:
-    status_t initReplay();
-
-    void waitForConsoleCommmand();
-    static void stopAutoReplayHandler(int signal);
-
-    status_t dispatchEvent(int index);
-
-    status_t doTransaction(const Transaction& transaction, const std::shared_ptr<Event>& event);
-    status_t createSurfaceControl(const SurfaceCreation& create,
-            const std::shared_ptr<Event>& event);
-    status_t injectVSyncEvent(const VSyncEvent& vsyncEvent, const std::shared_ptr<Event>& event);
-    void createDisplay(const DisplayCreation& create, const std::shared_ptr<Event>& event);
-    void deleteDisplay(const DisplayDeletion& delete_, const std::shared_ptr<Event>& event);
-    void updatePowerMode(const PowerModeUpdate& update, const std::shared_ptr<Event>& event);
-
-    status_t doSurfaceTransaction(SurfaceComposerClient::Transaction& transaction,
-            const SurfaceChanges& surfaceChange);
-    void doDisplayTransaction(SurfaceComposerClient::Transaction& transaction,
-            const DisplayChanges& displayChange);
-
-    void setPosition(SurfaceComposerClient::Transaction& t,
-            layer_id id, const PositionChange& pc);
-    void setSize(SurfaceComposerClient::Transaction& t,
-            layer_id id, const SizeChange& sc);
-    void setAlpha(SurfaceComposerClient::Transaction& t,
-            layer_id id, const AlphaChange& ac);
-    void setLayer(SurfaceComposerClient::Transaction& t,
-            layer_id id, const LayerChange& lc);
-    void setCrop(SurfaceComposerClient::Transaction& t,
-            layer_id id, const CropChange& cc);
-    void setCornerRadius(SurfaceComposerClient::Transaction& t,
-            layer_id id, const CornerRadiusChange& cc);
-    void setBackgroundBlurRadius(SurfaceComposerClient::Transaction& t,
-            layer_id id, const BackgroundBlurRadiusChange& cc);
-    void setBlurRegions(SurfaceComposerClient::Transaction& t,
-            layer_id id, const BlurRegionsChange& cc);
-    void setMatrix(SurfaceComposerClient::Transaction& t,
-            layer_id id, const MatrixChange& mc);
-    void setTransparentRegionHint(SurfaceComposerClient::Transaction& t,
-            layer_id id, const TransparentRegionHintChange& trgc);
-    void setLayerStack(SurfaceComposerClient::Transaction& t,
-            layer_id id, const LayerStackChange& lsc);
-    void setHiddenFlag(SurfaceComposerClient::Transaction& t,
-            layer_id id, const HiddenFlagChange& hfc);
-    void setOpaqueFlag(SurfaceComposerClient::Transaction& t,
-            layer_id id, const OpaqueFlagChange& ofc);
-    void setSecureFlag(SurfaceComposerClient::Transaction& t,
-            layer_id id, const SecureFlagChange& sfc);
-    void setReparentChange(SurfaceComposerClient::Transaction& t,
-            layer_id id, const ReparentChange& c);
-    void setRelativeParentChange(SurfaceComposerClient::Transaction& t,
-            layer_id id, const RelativeParentChange& c);
-    void setShadowRadiusChange(SurfaceComposerClient::Transaction& t,
-            layer_id id, const ShadowRadiusChange& c);
-    void setBlurRegionsChange(SurfaceComposerClient::Transaction& t,
-            layer_id id, const BlurRegionsChange& c);
-
-    void setDisplaySurface(SurfaceComposerClient::Transaction& t,
-            display_id id, const DispSurfaceChange& dsc);
-    void setDisplayLayerStack(SurfaceComposerClient::Transaction& t,
-            display_id id, const LayerStackChange& lsc);
-    void setDisplaySize(SurfaceComposerClient::Transaction& t,
-            display_id id, const SizeChange& sc);
-    void setDisplayProjection(SurfaceComposerClient::Transaction& t,
-            display_id id, const ProjectionChange& pc);
-
-    void waitUntilTimestamp(int64_t timestamp);
-    status_t loadSurfaceComposerClient();
-
-    Trace mTrace;
-    bool mLoaded = false;
-    int32_t mIncrementIndex = 0;
-    int64_t mCurrentTime = 0;
-    int32_t mNumThreads = DEFAULT_THREADS;
-
-    Increment mCurrentIncrement;
-
-    std::string mLastInput;
-
-    static atomic_bool sReplayingManually;
-    bool mWaitingForNextVSync;
-    bool mWaitForTimeStamps;
-    nsecs_t mStopTimeStamp;
-    bool mHasStopped;
-
-    std::mutex mLayerLock;
-    std::condition_variable mLayerCond;
-    std::unordered_map<layer_id, sp<SurfaceControl>> mLayers;
-    std::unordered_map<layer_id, HSV> mColors;
-
-    std::mutex mPendingLayersLock;
-    std::vector<layer_id> mLayersPendingRemoval;
-
-    std::mutex mBufferQueueSchedulerLock;
-    std::unordered_map<layer_id, std::shared_ptr<BufferQueueScheduler>> mBufferQueueSchedulers;
-
-    std::mutex mDisplayLock;
-    std::condition_variable mDisplayCond;
-    std::unordered_map<display_id, sp<IBinder>> mDisplays;
-
-    sp<SurfaceComposerClient> mComposerClient;
-    std::queue<std::shared_ptr<Event>> mPendingIncrements;
-};
-
-}  // namespace android
-#endif
diff --git a/cmds/surfacereplayer/replayer/trace_creator/trace_creator.py b/cmds/surfacereplayer/replayer/trace_creator/trace_creator.py
deleted file mode 100644
index 58bfbf3..0000000
--- a/cmds/surfacereplayer/replayer/trace_creator/trace_creator.py
+++ /dev/null
@@ -1,285 +0,0 @@
-#!/usr/bin/python
-from subprocess import call
-import os
-proto_path = os.environ['ANDROID_BUILD_TOP'] + "/frameworks/native/cmds/surfacereplayer/proto/src/"
-call(["aprotoc", "-I=" + proto_path, "--python_out=.", proto_path + "trace.proto"])
-
-from trace_pb2 import *
-
-trace = Trace()
-
-def main():
-    global trace
-    while(1):
-        option = main_menu()
-
-        if option == 0:
-            break
-
-        increment = trace.increment.add()
-        increment.time_stamp  = int(input("Time stamp of action: "))
-
-        if option == 1:
-           transaction(increment)
-        elif option == 2:
-            surface_create(increment)
-        elif option == 3:
-            surface_delete(increment)
-        elif option == 4:
-            display_create(increment)
-        elif option == 5:
-            display_delete(increment)
-        elif option == 6:
-            buffer_update(increment)
-        elif option == 7:
-            vsync_event(increment)
-        elif option == 8:
-            power_mode_update(increment)
-
-    seralizeTrace()
-
-def seralizeTrace():
-    with open("trace.dat", 'wb') as f:
-        f.write(trace.SerializeToString())
-
-
-def main_menu():
-    print ("")
-    print ("What would you like to do?")
-    print ("1. Add transaction")
-    print ("2. Add surface creation")
-    print ("3. Add surface deletion")
-    print ("4. Add display creation")
-    print ("5. Add display deletion")
-    print ("6. Add buffer update")
-    print ("7. Add VSync event")
-    print ("8. Add power mode update")
-    print ("0. Finish and serialize")
-    print ("")
-
-    return int(input("> "))
-
-def transaction_menu():
-    print ("")
-    print ("What kind of transaction?")
-    print ("1. Position Change")
-    print ("2. Size Change")
-    print ("3. Alpha Change")
-    print ("4. Layer Change")
-    print ("5. Crop Change")
-    print ("6. Final Crop Change")
-    print ("7. Matrix Change")
-    print ("9. Transparent Region Hint Change")
-    print ("10. Layer Stack Change")
-    print ("11. Hidden Flag Change")
-    print ("12. Opaque Flag Change")
-    print ("13. Secure Flag Change")
-    print ("14. Deferred Transaction Change")
-    print ("15. Display - Surface Change")
-    print ("16. Display - Layer Stack Change")
-    print ("17. Display - Size Change")
-    print ("18. Display - Projection Change")
-    print ("0. Finished adding Changes to this transaction")
-    print ("")
-
-    return int(input("> "))
-
-def transaction(increment):
-    global trace
-
-    increment.transaction.synchronous \
-            = bool(input("Is transaction synchronous (True/False): "))
-    increment.transaction.animation \
-            = bool(input("Is transaction animated (True/False): "))
-
-    while(1):
-        option = transaction_menu()
-
-        if option == 0:
-            break
-
-        change = None
-        if option <= 14:
-            change = increment.transaction.surface_change.add()
-        elif option >= 15 and option <= 18:
-            change = increment.transaction.display_change.add()
-
-        change.id = int(input("ID of layer/display to undergo a change: "))
-
-        if option == 1:
-            change.position.x, change.position.y = position()
-        elif option == 2:
-            change.size.w, change.size.h = size()
-        elif option == 3:
-            change.alpha.alpha = alpha()
-        elif option == 4:
-            change.layer.layer = layer()
-        elif option == 5:
-            change.crop.rectangle.left,  change.crop.rectangle.top, \
-            change.crop.rectangle.right, change.crop.rectangle.bottom = crop()
-        elif option == 6:
-            change.final_crop.rectangle.left, \
-            change.final_crop.rectangle.top,  \
-            change.final_crop.rectangle.right,\
-            change.final_crop.rectangle.bottom = final_crop()
-        elif option == 7:
-            change.matrix.dsdx,\
-            change.matrix.dtdx,\
-            change.matrix.dsdy,\
-            change.matrix.dtdy = layer()
-        elif option == 9:
-            for rect in transparent_region_hint():
-                new = increment.transparent_region_hint.region.add()
-                new.left = rect[0]
-                new.top = rect[1]
-                new.right = rect[2]
-                new.bottom = rect[3]
-        elif option == 10:
-            change.layer_stack.layer_stack = layer_stack()
-        elif option == 11:
-            change.hidden_flag.hidden_flag = hidden_flag()
-        elif option == 12:
-            change.opaque_flag.opaque_flag = opaque_flag()
-        elif option == 13:
-            change.secure_flag.secure_flag = secure_flag()
-        elif option == 14:
-            change.deferred_transaction.layer_id, \
-            change.deferred_transaction.frame_number = deferred_transaction()
-        elif option == 15:
-            change.surface.buffer_queue_id, \
-            change.surface.buffer_queue_name = surface()
-        elif option == 16:
-            change.layer_stack.layer_stack = layer_stack()
-        elif option == 17:
-            change.size.w, change.size.h = size()
-        elif option == 18:
-            projection(change)
-
-def surface_create(increment):
-    increment.surface_creation.id = int(input("Enter id: "))
-    n = str(raw_input("Enter name: "))
-    increment.surface_creation.name = n
-    increment.surface_creation.w = input("Enter w: ")
-    increment.surface_creation.h = input("Enter h: ")
-
-def surface_delete(increment):
-    increment.surface_deletion.id = int(input("Enter id: "))
-
-def display_create(increment):
-    increment.display_creation.id = int(input("Enter id: "))
-    increment.display_creation.name = str(raw_input("Enter name: "))
-    increment.display_creation.display_id = int(input("Enter display ID: "))
-    increment.display_creation.is_secure = bool(input("Enter if secure: "))
-
-def display_delete(increment):
-    increment.surface_deletion.id = int(input("Enter id: "))
-
-def buffer_update(increment):
-    increment.buffer_update.id = int(input("Enter id: "))
-    increment.buffer_update.w = int(input("Enter w: "))
-    increment.buffer_update.h = int(input("Enter h: "))
-    increment.buffer_update.frame_number = int(input("Enter frame_number: "))
-
-def vsync_event(increment):
-    increment.vsync_event.when = int(input("Enter when: "))
-
-def power_mode_update(increment):
-    increment.power_mode_update.id = int(input("Enter id: "))
-    increment.power_mode_update.mode = int(input("Enter mode: "))
-
-def position():
-    x = input("Enter x: ")
-    y = input("Enter y: ")
-
-    return float(x), float(y)
-
-def size():
-    w = input("Enter w: ")
-    h = input("Enter h: ")
-
-    return int(w), int(h)
-
-def alpha():
-    alpha = input("Enter alpha: ")
-
-    return float(alpha)
-
-def layer():
-    layer = input("Enter layer: ")
-
-    return int(layer)
-
-def crop():
-    return rectangle()
-
-def final_crop():
-    return rectangle()
-
-def matrix():
-    dsdx = input("Enter dsdx: ")
-    dtdx = input("Enter dtdx: ")
-    dsdy = input("Enter dsdy: ")
-    dtdy = input("Enter dtdy: ")
-
-    return float(dsdx)
-
-def transparent_region_hint():
-    num = input("Enter number of rectangles in region: ")
-
-    return [rectangle() in range(x)]
-
-def layer_stack():
-    layer_stack = input("Enter layer stack: ")
-
-    return int(layer_stack)
-
-def hidden_flag():
-    flag = input("Enter hidden flag state (True/False): ")
-
-    return bool(flag)
-
-def opaque_flag():
-    flag = input("Enter opaque flag state (True/False): ")
-
-    return bool(flag)
-
-def secure_flag():
-    flag = input("Enter secure flag state (True/False): ")
-
-    return bool(flag)
-
-def deferred_transaction():
-    layer_id = input("Enter layer_id: ")
-    frame_number = input("Enter frame_number: ")
-
-    return int(layer_id), int(frame_number)
-
-def surface():
-    id = input("Enter id: ")
-    name = raw_input("Enter name: ")
-
-    return int(id), str(name)
-
-def projection(change):
-    change.projection.orientation = input("Enter orientation: ")
-    print("Enter rectangle for viewport")
-    change.projection.viewport.left, \
-    change.projection.viewport.top,  \
-    change.projection.viewport.right,\
-    change.projection.viewport.bottom = rectangle()
-    print("Enter rectangle for frame")
-    change.projection.frame.left, \
-    change.projection.frame.top,  \
-    change.projection.frame.right,\
-    change.projection.frame.bottom = rectangle()
-
-def rectangle():
-    left = input("Enter left: ")
-    top = input("Enter top: ")
-    right = input("Enter right: ")
-    bottom = input("Enter bottom: ")
-
-    return int(left), int(top), int(right), int(bottom)
-
-if __name__ == "__main__":
-    main()
diff --git a/include/android/input.h b/include/android/input.h
index 7080386..d906af6 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -772,8 +772,17 @@
      */
     AMOTION_EVENT_AXIS_GENERIC_16 = 47,
 
+    /**
+     * Note: This is not an "Axis constant". It does not represent any axis, nor should it be used
+     * to represent any axis. It is a constant holding the value of the largest defined axis value,
+     * to make some computations (like iterating through all possible axes) cleaner.
+     * Please update the value accordingly if you add a new axis.
+     */
+    AMOTION_EVENT_MAXIMUM_VALID_AXIS_VALUE = AMOTION_EVENT_AXIS_GENERIC_16,
+
     // NOTE: If you add a new axis here you must also add it to several other files.
     //       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
+    //       Update AMOTION_EVENT_MAXIMUM_VALID_AXIS_VALUE accordingly as well.
 };
 
 /**
diff --git a/libs/binder/OS.cpp b/libs/binder/OS.cpp
index 24ce2bb..77e401f 100644
--- a/libs/binder/OS.cpp
+++ b/libs/binder/OS.cpp
@@ -18,6 +18,7 @@
 
 #include <android-base/file.h>
 #include <binder/RpcTransportRaw.h>
+#include <log/log.h>
 #include <string.h>
 
 using android::base::ErrnoError;
@@ -25,6 +26,9 @@
 
 namespace android {
 
+// Linux kernel supports up to 253 (from SCM_MAX_FD) for unix sockets.
+constexpr size_t kMaxFdsPerMsg = 253;
+
 Result<void> setNonBlocking(android::base::borrowed_fd fd) {
     int flags = TEMP_FAILURE_RETRY(fcntl(fd.get(), F_GETFL));
     if (flags == -1) {
@@ -63,4 +67,99 @@
     return RpcTransportCtxFactoryRaw::make();
 }
 
+int sendMessageOnSocket(
+        const RpcTransportFd& socket, iovec* iovs, int niovs,
+        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+    if (ancillaryFds != nullptr && !ancillaryFds->empty()) {
+        if (ancillaryFds->size() > kMaxFdsPerMsg) {
+            errno = EINVAL;
+            return -1;
+        }
+
+        // CMSG_DATA is not necessarily aligned, so we copy the FDs into a buffer and then
+        // use memcpy.
+        int fds[kMaxFdsPerMsg];
+        for (size_t i = 0; i < ancillaryFds->size(); i++) {
+            fds[i] = std::visit([](const auto& fd) { return fd.get(); }, ancillaryFds->at(i));
+        }
+        const size_t fdsByteSize = sizeof(int) * ancillaryFds->size();
+
+        alignas(struct cmsghdr) char msgControlBuf[CMSG_SPACE(sizeof(int) * kMaxFdsPerMsg)];
+
+        msghdr msg{
+                .msg_iov = iovs,
+                .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
+                .msg_control = msgControlBuf,
+                .msg_controllen = sizeof(msgControlBuf),
+        };
+
+        cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
+        cmsg->cmsg_level = SOL_SOCKET;
+        cmsg->cmsg_type = SCM_RIGHTS;
+        cmsg->cmsg_len = CMSG_LEN(fdsByteSize);
+        memcpy(CMSG_DATA(cmsg), fds, fdsByteSize);
+
+        msg.msg_controllen = CMSG_SPACE(fdsByteSize);
+        return TEMP_FAILURE_RETRY(sendmsg(socket.fd.get(), &msg, MSG_NOSIGNAL | MSG_CMSG_CLOEXEC));
+    }
+
+    msghdr msg{
+            .msg_iov = iovs,
+            // posix uses int, glibc uses size_t.  niovs is a
+            // non-negative int and can be cast to either.
+            .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
+    };
+    return TEMP_FAILURE_RETRY(sendmsg(socket.fd.get(), &msg, MSG_NOSIGNAL));
+}
+
+int receiveMessageFromSocket(
+        const RpcTransportFd& socket, iovec* iovs, int niovs,
+        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+    if (ancillaryFds != nullptr) {
+        int fdBuffer[kMaxFdsPerMsg];
+        alignas(struct cmsghdr) char msgControlBuf[CMSG_SPACE(sizeof(fdBuffer))];
+
+        msghdr msg{
+                .msg_iov = iovs,
+                .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
+                .msg_control = msgControlBuf,
+                .msg_controllen = sizeof(msgControlBuf),
+        };
+        ssize_t processSize = TEMP_FAILURE_RETRY(recvmsg(socket.fd.get(), &msg, MSG_NOSIGNAL));
+        if (processSize < 0) {
+            return -1;
+        }
+
+        for (cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); cmsg != nullptr; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+            if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
+                // NOTE: It is tempting to reinterpret_cast, but cmsg(3) explicitly asks
+                // application devs to memcpy the data to ensure memory alignment.
+                size_t dataLen = cmsg->cmsg_len - CMSG_LEN(0);
+                LOG_ALWAYS_FATAL_IF(dataLen > sizeof(fdBuffer)); // validity check
+                memcpy(fdBuffer, CMSG_DATA(cmsg), dataLen);
+                size_t fdCount = dataLen / sizeof(int);
+                ancillaryFds->reserve(ancillaryFds->size() + fdCount);
+                for (size_t i = 0; i < fdCount; i++) {
+                    ancillaryFds->emplace_back(base::unique_fd(fdBuffer[i]));
+                }
+                break;
+            }
+        }
+
+        if (msg.msg_flags & MSG_CTRUNC) {
+            errno = EPIPE;
+            return -1;
+        }
+        return processSize;
+    }
+    msghdr msg{
+            .msg_iov = iovs,
+            // posix uses int, glibc uses size_t.  niovs is a
+            // non-negative int and can be cast to either.
+            .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
+    };
+
+    return TEMP_FAILURE_RETRY(recvmsg(socket.fd.get(), &msg, MSG_NOSIGNAL));
+}
+
 } // namespace android
diff --git a/libs/binder/OS.h b/libs/binder/OS.h
index 5ab8bab..0d38968 100644
--- a/libs/binder/OS.h
+++ b/libs/binder/OS.h
@@ -33,4 +33,12 @@
 
 std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory();
 
+int sendMessageOnSocket(
+        const RpcTransportFd& socket, iovec* iovs, int niovs,
+        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds);
+
+int receiveMessageFromSocket(
+        const RpcTransportFd& socket, iovec* iovs, int niovs,
+        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds);
+
 } // namespace android
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 8333298..07d0a65 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -1439,7 +1439,8 @@
             case RpcSession::FileDescriptorTransportMode::NONE: {
                 return FDS_NOT_ALLOWED;
             }
-            case RpcSession::FileDescriptorTransportMode::UNIX: {
+            case RpcSession::FileDescriptorTransportMode::UNIX:
+            case RpcSession::FileDescriptorTransportMode::TRUSTY: {
                 if (rpcFields->mFds == nullptr) {
                     rpcFields->mFds = std::make_unique<decltype(rpcFields->mFds)::element_type>();
                 }
diff --git a/libs/binder/RpcServer.cpp b/libs/binder/RpcServer.cpp
index e581d0b..83d0de7 100644
--- a/libs/binder/RpcServer.cpp
+++ b/libs/binder/RpcServer.cpp
@@ -37,6 +37,7 @@
 #include "OS.h"
 #include "RpcSocketAddress.h"
 #include "RpcState.h"
+#include "RpcTransportUtils.h"
 #include "RpcWireFormat.h"
 #include "Utils.h"
 
@@ -61,6 +62,10 @@
     return sp<RpcServer>::make(std::move(ctx));
 }
 
+status_t RpcServer::setupUnixDomainSocketBootstrapServer(unique_fd bootstrapFd) {
+    return setupExternalServer(std::move(bootstrapFd), &RpcServer::recvmsgSocketConnection);
+}
+
 status_t RpcServer::setupUnixDomainServer(const char* path) {
     return setupSocketServer(UnixSocketAddress(path));
 }
@@ -177,11 +182,50 @@
     rpcJoinIfSingleThreaded(*mJoinThread);
 }
 
+status_t RpcServer::acceptSocketConnection(const RpcServer& server, RpcTransportFd* out) {
+    RpcTransportFd clientSocket(unique_fd(TEMP_FAILURE_RETRY(
+            accept4(server.mServer.fd.get(), nullptr, nullptr, SOCK_CLOEXEC | SOCK_NONBLOCK))));
+    if (clientSocket.fd < 0) {
+        int savedErrno = errno;
+        ALOGE("Could not accept4 socket: %s", strerror(savedErrno));
+        return -savedErrno;
+    }
+
+    *out = std::move(clientSocket);
+    return OK;
+}
+
+status_t RpcServer::recvmsgSocketConnection(const RpcServer& server, RpcTransportFd* out) {
+    int zero = 0;
+    iovec iov{&zero, sizeof(zero)};
+    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+
+    if (receiveMessageFromSocket(server.mServer, &iov, 1, &fds) < 0) {
+        int savedErrno = errno;
+        ALOGE("Failed recvmsg: %s", strerror(savedErrno));
+        return -savedErrno;
+    }
+    if (fds.size() != 1) {
+        ALOGE("Expected exactly one fd from recvmsg, got %zu", fds.size());
+        return -EINVAL;
+    }
+
+    unique_fd fd(std::move(std::get<unique_fd>(fds.back())));
+    if (auto res = setNonBlocking(fd); !res.ok()) {
+        ALOGE("Failed setNonBlocking: %s", res.error().message().c_str());
+        return res.error().code() == 0 ? UNKNOWN_ERROR : -res.error().code();
+    }
+
+    *out = RpcTransportFd(std::move(fd));
+    return OK;
+}
+
 void RpcServer::join() {
 
     {
         RpcMutexLockGuard _l(mLock);
         LOG_ALWAYS_FATAL_IF(!mServer.fd.ok(), "RpcServer must be setup to join.");
+        LOG_ALWAYS_FATAL_IF(mAcceptFn == nullptr, "RpcServer must have an accept() function");
         LOG_ALWAYS_FATAL_IF(mShutdownTrigger != nullptr, "Already joined");
         mJoinThreadRunning = true;
         mShutdownTrigger = FdTrigger::make();
@@ -192,20 +236,19 @@
     while ((status = mShutdownTrigger->triggerablePoll(mServer, POLLIN)) == OK) {
         std::array<uint8_t, kRpcAddressSize> addr;
         static_assert(addr.size() >= sizeof(sockaddr_storage), "kRpcAddressSize is too small");
-
         socklen_t addrLen = addr.size();
-        RpcTransportFd clientSocket(unique_fd(TEMP_FAILURE_RETRY(
-                accept4(mServer.fd.get(), reinterpret_cast<sockaddr*>(addr.data()), &addrLen,
-                        SOCK_CLOEXEC | SOCK_NONBLOCK))));
 
-        LOG_ALWAYS_FATAL_IF(addrLen > static_cast<socklen_t>(sizeof(sockaddr_storage)),
-                            "Truncated address");
-
-        if (clientSocket.fd < 0) {
-            ALOGE("Could not accept4 socket: %s", strerror(errno));
+        RpcTransportFd clientSocket;
+        if (mAcceptFn(*this, &clientSocket) != OK) {
             continue;
         }
-        LOG_RPC_DETAIL("accept4 on fd %d yields fd %d", mServer.fd.get(), clientSocket.fd.get());
+        if (getpeername(clientSocket.fd.get(), reinterpret_cast<sockaddr*>(addr.data()),
+                        &addrLen)) {
+            ALOGE("Could not getpeername socket: %s", strerror(errno));
+            continue;
+        }
+
+        LOG_RPC_DETAIL("accept on fd %d yields fd %d", mServer.fd.get(), clientSocket.fd.get());
 
         {
             RpcMutexLockGuard _l(mLock);
@@ -550,16 +593,23 @@
     return std::move(mServer.fd);
 }
 
-status_t RpcServer::setupExternalServer(base::unique_fd serverFd) {
+status_t RpcServer::setupExternalServer(
+        base::unique_fd serverFd,
+        std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn) {
     RpcMutexLockGuard _l(mLock);
     if (mServer.fd.ok()) {
         ALOGE("Each RpcServer can only have one server.");
         return INVALID_OPERATION;
     }
     mServer = std::move(serverFd);
+    mAcceptFn = std::move(acceptFn);
     return OK;
 }
 
+status_t RpcServer::setupExternalServer(base::unique_fd serverFd) {
+    return setupExternalServer(std::move(serverFd), &RpcServer::acceptSocketConnection);
+}
+
 bool RpcServer::hasActiveRequests() {
     RpcMutexLockGuard _l(mLock);
     for (const auto& [_, session] : mSessions) {
diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index 49843e5..7d6bcfc 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp
@@ -41,6 +41,7 @@
 #include "OS.h"
 #include "RpcSocketAddress.h"
 #include "RpcState.h"
+#include "RpcTransportUtils.h"
 #include "RpcWireFormat.h"
 #include "Utils.h"
 
@@ -147,6 +148,34 @@
     return setupSocketClient(UnixSocketAddress(path));
 }
 
+status_t RpcSession::setupUnixDomainSocketBootstrapClient(unique_fd bootstrapFd) {
+    mBootstrapTransport =
+            mCtx->newTransport(RpcTransportFd(std::move(bootstrapFd)), mShutdownTrigger.get());
+    return setupClient([&](const std::vector<uint8_t>& sessionId, bool incoming) {
+        int socks[2];
+        if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, socks) < 0) {
+            int savedErrno = errno;
+            ALOGE("Failed socketpair: %s", strerror(savedErrno));
+            return -savedErrno;
+        }
+        unique_fd clientFd(socks[0]), serverFd(socks[1]);
+
+        int zero = 0;
+        iovec iov{&zero, sizeof(zero)};
+        std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+        fds.push_back(std::move(serverFd));
+
+        status_t status = mBootstrapTransport->interruptableWriteFully(mShutdownTrigger.get(), &iov,
+                                                                       1, std::nullopt, &fds);
+        if (status != OK) {
+            ALOGE("Failed to send fd over bootstrap transport: %s", strerror(-status));
+            return status;
+        }
+
+        return initAndAddConnection(RpcTransportFd(std::move(clientFd)), sessionId, incoming);
+    });
+}
+
 status_t RpcSession::setupVsockClient(unsigned int cid, unsigned int port) {
     return setupSocketClient(VsockSocketAddress(cid, port));
 }
@@ -295,16 +324,18 @@
 }
 
 void RpcSession::WaitForShutdownListener::onSessionIncomingThreadEnded() {
+    mShutdownCount += 1;
     mCv.notify_all();
 }
 
 void RpcSession::WaitForShutdownListener::waitForShutdown(RpcMutexUniqueLock& lock,
                                                           const sp<RpcSession>& session) {
-    while (session->mConnections.mIncoming.size() > 0) {
+    while (mShutdownCount < session->mConnections.mMaxIncoming) {
         if (std::cv_status::timeout == mCv.wait_for(lock, std::chrono::seconds(1))) {
             ALOGE("Waiting for RpcSession to shut down (1s w/o progress): %zu incoming connections "
-                  "still.",
-                  session->mConnections.mIncoming.size());
+                  "still %zu/%zu fully shutdown.",
+                  session->mConnections.mIncoming.size(), mShutdownCount.load(),
+                  session->mConnections.mMaxIncoming);
         }
     }
 }
diff --git a/libs/binder/RpcState.cpp b/libs/binder/RpcState.cpp
index 7067328..b27f102 100644
--- a/libs/binder/RpcState.cpp
+++ b/libs/binder/RpcState.cpp
@@ -56,6 +56,7 @@
         case RpcSession::FileDescriptorTransportMode::NONE:
             return false;
         case RpcSession::FileDescriptorTransportMode::UNIX:
+        case RpcSession::FileDescriptorTransportMode::TRUSTY:
             return true;
     }
 }
@@ -1207,6 +1208,20 @@
                                              rpcFields->mFds->size(), kMaxFdsPerMsg);
                     return BAD_VALUE;
                 }
+                break;
+            }
+            case RpcSession::FileDescriptorTransportMode::TRUSTY: {
+                // Keep this in sync with trusty_ipc.h!!!
+                // We could import that file here on Trusty, but it's not
+                // available on Android
+                constexpr size_t kMaxFdsPerMsg = 8;
+                if (rpcFields->mFds->size() > kMaxFdsPerMsg) {
+                    *errorMsg = StringPrintf("Too many file descriptors in Parcel for Trusty "
+                                             "IPC connection: %zu (max is %zu)",
+                                             rpcFields->mFds->size(), kMaxFdsPerMsg);
+                    return BAD_VALUE;
+                }
+                break;
             }
         }
     }
diff --git a/libs/binder/RpcTransportRaw.cpp b/libs/binder/RpcTransportRaw.cpp
index 65e8fac..1912d14 100644
--- a/libs/binder/RpcTransportRaw.cpp
+++ b/libs/binder/RpcTransportRaw.cpp
@@ -23,6 +23,7 @@
 #include <binder/RpcTransportRaw.h>
 
 #include "FdTrigger.h"
+#include "OS.h"
 #include "RpcState.h"
 #include "RpcTransportUtils.h"
 
@@ -30,9 +31,6 @@
 
 namespace {
 
-// Linux kernel supports up to 253 (from SCM_MAX_FD) for unix sockets.
-constexpr size_t kMaxFdsPerMsg = 253;
-
 // RpcTransport with TLS disabled.
 class RpcTransportRaw : public RpcTransport {
 public:
@@ -63,57 +61,9 @@
             override {
         bool sentFds = false;
         auto send = [&](iovec* iovs, int niovs) -> ssize_t {
-            if (ancillaryFds != nullptr && !ancillaryFds->empty() && !sentFds) {
-                if (ancillaryFds->size() > kMaxFdsPerMsg) {
-                    // This shouldn't happen because we check the FD count in RpcState.
-                    ALOGE("Saw too many file descriptors in RpcTransportCtxRaw: %zu (max is %zu). "
-                          "Aborting session.",
-                          ancillaryFds->size(), kMaxFdsPerMsg);
-                    errno = EINVAL;
-                    return -1;
-                }
-
-                // CMSG_DATA is not necessarily aligned, so we copy the FDs into a buffer and then
-                // use memcpy.
-                int fds[kMaxFdsPerMsg];
-                for (size_t i = 0; i < ancillaryFds->size(); i++) {
-                    fds[i] = std::visit([](const auto& fd) { return fd.get(); },
-                                        ancillaryFds->at(i));
-                }
-                const size_t fdsByteSize = sizeof(int) * ancillaryFds->size();
-
-                alignas(struct cmsghdr) char msgControlBuf[CMSG_SPACE(sizeof(int) * kMaxFdsPerMsg)];
-
-                msghdr msg{
-                        .msg_iov = iovs,
-                        .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
-                        .msg_control = msgControlBuf,
-                        .msg_controllen = sizeof(msgControlBuf),
-                };
-
-                cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
-                cmsg->cmsg_level = SOL_SOCKET;
-                cmsg->cmsg_type = SCM_RIGHTS;
-                cmsg->cmsg_len = CMSG_LEN(fdsByteSize);
-                memcpy(CMSG_DATA(cmsg), fds, fdsByteSize);
-
-                msg.msg_controllen = CMSG_SPACE(fdsByteSize);
-
-                ssize_t processedSize = TEMP_FAILURE_RETRY(
-                        sendmsg(mSocket.fd.get(), &msg, MSG_NOSIGNAL | MSG_CMSG_CLOEXEC));
-                if (processedSize > 0) {
-                    sentFds = true;
-                }
-                return processedSize;
-            }
-
-            msghdr msg{
-                    .msg_iov = iovs,
-                    // posix uses int, glibc uses size_t.  niovs is a
-                    // non-negative int and can be cast to either.
-                    .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
-            };
-            return TEMP_FAILURE_RETRY(sendmsg(mSocket.fd.get(), &msg, MSG_NOSIGNAL));
+            int ret = sendMessageOnSocket(mSocket, iovs, niovs, sentFds ? nullptr : ancillaryFds);
+            sentFds |= ret > 0;
+            return ret;
         };
         return interruptableReadOrWrite(mSocket, fdTrigger, iovs, niovs, send, "sendmsg", POLLOUT,
                                         altPoll);
@@ -124,54 +74,7 @@
             const std::optional<android::base::function_ref<status_t()>>& altPoll,
             std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override {
         auto recv = [&](iovec* iovs, int niovs) -> ssize_t {
-            if (ancillaryFds != nullptr) {
-                int fdBuffer[kMaxFdsPerMsg];
-                alignas(struct cmsghdr) char msgControlBuf[CMSG_SPACE(sizeof(fdBuffer))];
-
-                msghdr msg{
-                        .msg_iov = iovs,
-                        .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
-                        .msg_control = msgControlBuf,
-                        .msg_controllen = sizeof(msgControlBuf),
-                };
-                ssize_t processSize =
-                        TEMP_FAILURE_RETRY(recvmsg(mSocket.fd.get(), &msg, MSG_NOSIGNAL));
-                if (processSize < 0) {
-                    return -1;
-                }
-
-                for (cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); cmsg != nullptr;
-                     cmsg = CMSG_NXTHDR(&msg, cmsg)) {
-                    if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
-                        // NOTE: It is tempting to reinterpret_cast, but cmsg(3) explicitly asks
-                        // application devs to memcpy the data to ensure memory alignment.
-                        size_t dataLen = cmsg->cmsg_len - CMSG_LEN(0);
-                        LOG_ALWAYS_FATAL_IF(dataLen > sizeof(fdBuffer)); // sanity check
-                        memcpy(fdBuffer, CMSG_DATA(cmsg), dataLen);
-                        size_t fdCount = dataLen / sizeof(int);
-                        ancillaryFds->reserve(ancillaryFds->size() + fdCount);
-                        for (size_t i = 0; i < fdCount; i++) {
-                            ancillaryFds->emplace_back(base::unique_fd(fdBuffer[i]));
-                        }
-                        break;
-                    }
-                }
-
-                if (msg.msg_flags & MSG_CTRUNC) {
-                    ALOGE("msg was truncated. Aborting session.");
-                    errno = EPIPE;
-                    return -1;
-                }
-
-                return processSize;
-            }
-            msghdr msg{
-                    .msg_iov = iovs,
-                    // posix uses int, glibc uses size_t.  niovs is a
-                    // non-negative int and can be cast to either.
-                    .msg_iovlen = static_cast<decltype(msg.msg_iovlen)>(niovs),
-            };
-            return TEMP_FAILURE_RETRY(recvmsg(mSocket.fd.get(), &msg, MSG_NOSIGNAL));
+            return receiveMessageFromSocket(mSocket, iovs, niovs, ancillaryFds);
         };
         return interruptableReadOrWrite(mSocket, fdTrigger, iovs, niovs, recv, "recvmsg", POLLIN,
                                         altPoll);
diff --git a/libs/binder/TEST_MAPPING b/libs/binder/TEST_MAPPING
index c91d56c..342e4a3 100644
--- a/libs/binder/TEST_MAPPING
+++ b/libs/binder/TEST_MAPPING
@@ -58,13 +58,10 @@
       "name": "CtsOsTestCases",
       "options": [
         {
-          "exclude-annotation": "android.platform.test.annotations.LargeTest"
+          "include-filter": "android.os.cts.BinderTest"
         },
         {
-          "exclude-filter": "android.os.cts.BuildTest#testSdkInt"
-        },
-        {
-          "exclude-filter": "android.os.cts.StrictModeTest#testNonSdkApiUsage"
+          "include-filter": "android.os.cts.ParcelTest"
         }
       ]
     },
diff --git a/libs/binder/include/binder/RpcServer.h b/libs/binder/include/binder/RpcServer.h
index 2c99334..81ae26a3 100644
--- a/libs/binder/include/binder/RpcServer.h
+++ b/libs/binder/include/binder/RpcServer.h
@@ -50,6 +50,17 @@
             std::unique_ptr<RpcTransportCtxFactory> rpcTransportCtxFactory = nullptr);
 
     /**
+     * Creates an RPC server that bootstraps sessions using an existing
+     * Unix domain socket pair.
+     *
+     * Callers should create a pair of SOCK_STREAM Unix domain sockets, pass
+     * one to RpcServer::setupUnixDomainSocketBootstrapServer and the other
+     * to RpcSession::setupUnixDomainSocketBootstrapClient. Multiple client
+     * session can be created from the client end of the pair.
+     */
+    [[nodiscard]] status_t setupUnixDomainSocketBootstrapServer(base::unique_fd serverFd);
+
+    /**
      * This represents a session for responses, e.g.:
      *
      *     process A serves binder a
@@ -202,11 +213,18 @@
     void onSessionAllIncomingThreadsEnded(const sp<RpcSession>& session) override;
     void onSessionIncomingThreadEnded() override;
 
+    status_t setupExternalServer(
+            base::unique_fd serverFd,
+            std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn);
+
     static constexpr size_t kRpcAddressSize = 128;
     static void establishConnection(
             sp<RpcServer>&& server, RpcTransportFd clientFd,
             std::array<uint8_t, kRpcAddressSize> addr, size_t addrLen,
             std::function<void(sp<RpcSession>&&, RpcSession::PreJoinSetupResult&&)>&& joinFn);
+    static status_t acceptSocketConnection(const RpcServer& server, RpcTransportFd* out);
+    static status_t recvmsgSocketConnection(const RpcServer& server, RpcTransportFd* out);
+
     [[nodiscard]] status_t setupSocketServer(const RpcSocketAddress& address);
 
     const std::unique_ptr<RpcTransportCtx> mCtx;
@@ -228,6 +246,7 @@
     std::map<std::vector<uint8_t>, sp<RpcSession>> mSessions;
     std::unique_ptr<FdTrigger> mShutdownTrigger;
     RpcConditionVariable mShutdownCv;
+    std::function<status_t(const RpcServer& server, RpcTransportFd* out)> mAcceptFn;
 };
 
 } // namespace android
diff --git a/libs/binder/include/binder/RpcSession.h b/libs/binder/include/binder/RpcSession.h
index a25ba98..40faf2c 100644
--- a/libs/binder/include/binder/RpcSession.h
+++ b/libs/binder/include/binder/RpcSession.h
@@ -100,6 +100,8 @@
         NONE = 0,
         // Send file descriptors via unix domain socket ancillary data.
         UNIX = 1,
+        // Send file descriptors as Trusty IPC handles.
+        TRUSTY = 2,
     };
 
     /**
@@ -115,6 +117,11 @@
     [[nodiscard]] status_t setupUnixDomainClient(const char* path);
 
     /**
+     * Connects to an RPC server over a nameless Unix domain socket pair.
+     */
+    [[nodiscard]] status_t setupUnixDomainSocketBootstrapClient(base::unique_fd bootstrap);
+
+    /**
      * Connects to an RPC server at the CVD & port.
      */
     [[nodiscard]] status_t setupVsockClient(unsigned int cvd, unsigned int port);
@@ -233,6 +240,7 @@
 
     private:
         RpcConditionVariable mCv;
+        std::atomic<size_t> mShutdownCount = 0;
     };
     friend WaitForShutdownListener;
 
@@ -366,11 +374,14 @@
 
     RpcConditionVariable mAvailableConnectionCv; // for mWaitingThreads
 
+    std::unique_ptr<RpcTransport> mBootstrapTransport;
+
     struct ThreadState {
         size_t mWaitingThreads = 0;
         // hint index into clients, ++ when sending an async transaction
         size_t mOutgoingOffset = 0;
         std::vector<sp<RpcConnection>> mOutgoing;
+        // max size of mIncoming. Once any thread starts down, no more can be started.
         size_t mMaxIncoming = 0;
         std::vector<sp<RpcConnection>> mIncoming;
         std::map<RpcMaybeThread::id, RpcMaybeThread> mThreads;
diff --git a/libs/binder/ndk/include_platform/android/binder_libbinder.h b/libs/binder/ndk/include_platform/android/binder_libbinder.h
index dfe12a1..74a7157 100644
--- a/libs/binder/ndk/include_platform/android/binder_libbinder.h
+++ b/libs/binder/ndk/include_platform/android/binder_libbinder.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#if !defined(__ANDROID_APEX__) && !defined(__ANDROID_VNDK__)
+#if (!defined(__ANDROID_APEX__) && !defined(__ANDROID_VNDK__)) || defined(__TRUSTY__)
 
 #include <android/binder_ibinder.h>
 #include <android/binder_parcel.h>
diff --git a/libs/binder/rust/src/binder.rs b/libs/binder/rust/src/binder.rs
index 63c8684..976f54d 100644
--- a/libs/binder/rust/src/binder.rs
+++ b/libs/binder/rust/src/binder.rs
@@ -1091,7 +1091,7 @@
         }
     } => {
         $( #[$attr] )*
-        #[derive(Debug, Default, Copy, Clone, PartialOrd, Ord, PartialEq, Eq, Hash)]
+        #[derive(Default, Copy, Clone, PartialOrd, Ord, PartialEq, Eq, Hash)]
         #[allow(missing_docs)]
         pub struct $enum(pub $backing);
         impl $enum {
@@ -1104,6 +1104,15 @@
             }
         }
 
+        impl std::fmt::Debug for $enum {
+            fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+                match self.0 {
+                    $($value => f.write_str(stringify!($name)),)*
+                    _ => f.write_fmt(format_args!("{}", self.0))
+                }
+            }
+        }
+
         impl $crate::binder_impl::Serialize for $enum {
             fn serialize(&self, parcel: &mut $crate::binder_impl::BorrowedParcel<'_>) -> std::result::Result<(), $crate::StatusCode> {
                 parcel.write(&self.0)
diff --git a/libs/binder/tests/BinderRpcTestServerConfig.aidl b/libs/binder/tests/BinderRpcTestServerConfig.aidl
index 34d74be..4cdeac4 100644
--- a/libs/binder/tests/BinderRpcTestServerConfig.aidl
+++ b/libs/binder/tests/BinderRpcTestServerConfig.aidl
@@ -21,5 +21,6 @@
     int rpcSecurity;
     int serverVersion;
     int vsockPort;
+    int unixBootstrapFd; // Inherited from parent
     @utf8InCpp String addr;
 }
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 2b70492..7294305 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -181,10 +181,20 @@
             wp<RpcSession> weakSession = session;
             session = nullptr;
 
-            sp<RpcSession> strongSession = weakSession.promote();
-            EXPECT_EQ(nullptr, strongSession)
-                    << (debugBacktrace(host.getPid()), debugBacktrace(getpid()), "Leaked sess: ")
-                    << strongSession->getStrongCount();
+            // b/244325464 - 'getStrongCount' is printing '1' on failure here, which indicates the
+            // the object should not actually be promotable. By looping, we distinguish a race here
+            // from a bug causing the object to not be promotable.
+            for (size_t i = 0; i < 3; i++) {
+                sp<RpcSession> strongSession = weakSession.promote();
+                EXPECT_EQ(nullptr, strongSession)
+                        << (debugBacktrace(host.getPid()), debugBacktrace(getpid()),
+                            "Leaked sess: ")
+                        << strongSession->getStrongCount() << " checked time " << i;
+
+                if (strongSession != nullptr) {
+                    sleep(1);
+                }
+            }
         }
     }
 };
@@ -244,6 +254,25 @@
     return serverFd;
 }
 
+static base::unique_fd connectToUnixBootstrap(const RpcTransportFd& transportFd) {
+    base::unique_fd sockClient, sockServer;
+    if (!base::Socketpair(SOCK_STREAM, &sockClient, &sockServer)) {
+        int savedErrno = errno;
+        LOG(FATAL) << "Failed socketpair(): " << strerror(savedErrno);
+    }
+
+    int zero = 0;
+    iovec iov{&zero, sizeof(zero)};
+    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+    fds.emplace_back(std::move(sockServer));
+
+    if (sendMessageOnSocket(transportFd, &iov, 1, &fds) < 0) {
+        int savedErrno = errno;
+        LOG(FATAL) << "Failed sendMessageOnSocket: " << strerror(savedErrno);
+    }
+    return std::move(sockClient);
+}
+
 using RunServiceFn = void (*)(android::base::borrowed_fd writeEnd,
                               android::base::borrowed_fd readEnd);
 
@@ -264,7 +293,14 @@
     // Whether the test params support sending FDs in parcels.
     bool supportsFdTransport() const {
         return clientVersion() >= 1 && serverVersion() >= 1 && rpcSecurity() != RpcSecurity::TLS &&
-                (socketType() == SocketType::PRECONNECTED || socketType() == SocketType::UNIX);
+                (socketType() == SocketType::PRECONNECTED || socketType() == SocketType::UNIX ||
+                 socketType() == SocketType::UNIX_BOOTSTRAP);
+    }
+
+    void SetUp() override {
+        if (socketType() == SocketType::UNIX_BOOTSTRAP && rpcSecurity() == RpcSecurity::TLS) {
+            GTEST_SKIP() << "Unix bootstrap not supported over a TLS transport";
+        }
     }
 
     static inline std::string PrintParamInfo(const testing::TestParamInfo<ParamType>& info) {
@@ -298,6 +334,14 @@
                                             singleThreaded ? "_single_threaded" : "",
                                             noKernel ? "_no_kernel" : "");
 
+        base::unique_fd bootstrapClientFd, bootstrapServerFd;
+        // Do not set O_CLOEXEC, bootstrapServerFd needs to survive fork/exec.
+        // This is because we cannot pass ParcelFileDescriptor over a pipe.
+        if (!base::Socketpair(SOCK_STREAM, &bootstrapClientFd, &bootstrapServerFd)) {
+            int savedErrno = errno;
+            LOG(FATAL) << "Failed socketpair(): " << strerror(savedErrno);
+        }
+
         auto ret = ProcessSession{
                 .host = Process([=](android::base::borrowed_fd writeEnd,
                                     android::base::borrowed_fd readEnd) {
@@ -315,6 +359,7 @@
         serverConfig.serverVersion = serverVersion;
         serverConfig.vsockPort = allocateVsockPort();
         serverConfig.addr = allocateSocketAddress();
+        serverConfig.unixBootstrapFd = bootstrapServerFd.get();
         for (auto mode : options.serverSupportedFileDescriptorTransportModes) {
             serverConfig.serverSupportedFileDescriptorTransportModes.push_back(
                     static_cast<int32_t>(mode));
@@ -364,6 +409,10 @@
                 case SocketType::UNIX:
                     status = session->setupUnixDomainClient(serverConfig.addr.c_str());
                     break;
+                case SocketType::UNIX_BOOTSTRAP:
+                    status = session->setupUnixDomainSocketBootstrapClient(
+                            base::unique_fd(dup(bootstrapClientFd.get())));
+                    break;
                 case SocketType::VSOCK:
                     status = session->setupVsockClient(VMADDR_CID_LOCAL, serverConfig.vsockPort);
                     break;
@@ -430,7 +479,8 @@
     }
 
     SocketType type = std::get<0>(GetParam());
-    if (type == SocketType::PRECONNECTED || type == SocketType::UNIX) {
+    if (type == SocketType::PRECONNECTED || type == SocketType::UNIX ||
+        type == SocketType::UNIX_BOOTSTRAP) {
         // we can't get port numbers for unix sockets
         return;
     }
@@ -1566,7 +1616,7 @@
 }
 
 static std::vector<SocketType> testSocketTypes(bool hasPreconnected = true) {
-    std::vector<SocketType> ret = {SocketType::UNIX, SocketType::INET};
+    std::vector<SocketType> ret = {SocketType::UNIX, SocketType::UNIX_BOOTSTRAP, SocketType::INET};
 
     if (hasPreconnected) ret.push_back(SocketType::PRECONNECTED);
 
@@ -1767,6 +1817,8 @@
     // A server that handles client socket connections.
     class Server {
     public:
+        using AcceptConnection = std::function<base::unique_fd(Server*)>;
+
         explicit Server() {}
         Server(Server&&) = default;
         ~Server() { shutdownAndWait(); }
@@ -1791,6 +1843,21 @@
                         return connectTo(UnixSocketAddress(addr.c_str()));
                     };
                 } break;
+                case SocketType::UNIX_BOOTSTRAP: {
+                    base::unique_fd bootstrapFdClient, bootstrapFdServer;
+                    if (!base::Socketpair(SOCK_STREAM, &bootstrapFdClient, &bootstrapFdServer)) {
+                        return AssertionFailure() << "Socketpair() failed";
+                    }
+                    auto status = rpcServer->setupUnixDomainSocketBootstrapServer(
+                            std::move(bootstrapFdServer));
+                    if (status != OK) {
+                        return AssertionFailure() << "setupUnixDomainSocketBootstrapServer: "
+                                                  << statusToString(status);
+                    }
+                    mBootstrapSocket = RpcTransportFd(std::move(bootstrapFdClient));
+                    mAcceptConnection = &Server::recvmsgServerConnection;
+                    mConnectToServer = [this] { return connectToUnixBootstrap(mBootstrapSocket); };
+                } break;
                 case SocketType::VSOCK: {
                     auto port = allocateVsockPort();
                     auto status = rpcServer->setupVsockServer(port);
@@ -1838,14 +1905,33 @@
             LOG_ALWAYS_FATAL_IF(!mSetup, "Call Server::setup first!");
             mThread = std::make_unique<std::thread>(&Server::run, this);
         }
+
+        base::unique_fd acceptServerConnection() {
+            return base::unique_fd(TEMP_FAILURE_RETRY(
+                    accept4(mFd.fd.get(), nullptr, nullptr, SOCK_CLOEXEC | SOCK_NONBLOCK)));
+        }
+
+        base::unique_fd recvmsgServerConnection() {
+            std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+            int buf;
+            iovec iov{&buf, sizeof(buf)};
+
+            if (receiveMessageFromSocket(mFd, &iov, 1, &fds) < 0) {
+                int savedErrno = errno;
+                LOG(FATAL) << "Failed receiveMessage: " << strerror(savedErrno);
+            }
+            if (fds.size() != 1) {
+                LOG(FATAL) << "Expected one FD from receiveMessage(), got " << fds.size();
+            }
+            return std::move(std::get<base::unique_fd>(fds[0]));
+        }
+
         void run() {
             LOG_ALWAYS_FATAL_IF(!mSetup, "Call Server::setup first!");
 
             std::vector<std::thread> threads;
             while (OK == mFdTrigger->triggerablePoll(mFd, POLLIN)) {
-                base::unique_fd acceptedFd(
-                        TEMP_FAILURE_RETRY(accept4(mFd.fd.get(), nullptr, nullptr /*length*/,
-                                                   SOCK_CLOEXEC | SOCK_NONBLOCK)));
+                base::unique_fd acceptedFd = mAcceptConnection(this);
                 threads.emplace_back(&Server::handleOne, this, std::move(acceptedFd));
             }
 
@@ -1872,8 +1958,9 @@
     private:
         std::unique_ptr<std::thread> mThread;
         ConnectToServer mConnectToServer;
+        AcceptConnection mAcceptConnection = &Server::acceptServerConnection;
         std::unique_ptr<FdTrigger> mFdTrigger = FdTrigger::make();
-        RpcTransportFd mFd;
+        RpcTransportFd mFd, mBootstrapSocket;
         std::unique_ptr<RpcTransportCtx> mCtx;
         std::shared_ptr<RpcCertificateVerifierSimple> mCertVerifier =
                 std::make_shared<RpcCertificateVerifierSimple>();
diff --git a/libs/binder/tests/binderRpcTestCommon.h b/libs/binder/tests/binderRpcTestCommon.h
index fddf5f3..823bbf6 100644
--- a/libs/binder/tests/binderRpcTestCommon.h
+++ b/libs/binder/tests/binderRpcTestCommon.h
@@ -49,6 +49,7 @@
 
 #include "../BuildFlags.h"
 #include "../FdTrigger.h"
+#include "../OS.h"               // for testing UnixBootstrap clients
 #include "../RpcSocketAddress.h" // for testing preconnected clients
 #include "../RpcState.h"         // for debugging
 #include "../vm_sockets.h"       // for VMADDR_*
@@ -67,15 +68,19 @@
 enum class SocketType {
     PRECONNECTED,
     UNIX,
+    UNIX_BOOTSTRAP,
     VSOCK,
     INET,
 };
+
 static inline std::string PrintToString(SocketType socketType) {
     switch (socketType) {
         case SocketType::PRECONNECTED:
             return "preconnected_uds";
         case SocketType::UNIX:
             return "unix_domain_socket";
+        case SocketType::UNIX_BOOTSTRAP:
+            return "unix_domain_socket_bootstrap";
         case SocketType::VSOCK:
             return "vm_socket";
         case SocketType::INET:
diff --git a/libs/binder/tests/binderRpcTestService.cpp b/libs/binder/tests/binderRpcTestService.cpp
index 31eb5da..a922b21 100644
--- a/libs/binder/tests/binderRpcTestService.cpp
+++ b/libs/binder/tests/binderRpcTestService.cpp
@@ -42,6 +42,7 @@
     server->setSupportedFileDescriptorTransportModes(serverSupportedFileDescriptorTransportModes);
 
     unsigned int outPort = 0;
+    base::unique_fd unixBootstrapFd(serverConfig.unixBootstrapFd);
 
     switch (socketType) {
         case SocketType::PRECONNECTED:
@@ -50,6 +51,9 @@
             CHECK_EQ(OK, server->setupUnixDomainServer(serverConfig.addr.c_str()))
                     << serverConfig.addr;
             break;
+        case SocketType::UNIX_BOOTSTRAP:
+            CHECK_EQ(OK, server->setupUnixDomainSocketBootstrapServer(std::move(unixBootstrapFd)));
+            break;
         case SocketType::VSOCK:
             CHECK_EQ(OK, server->setupVsockServer(serverConfig.vsockPort));
             break;
diff --git a/libs/binder/tests/parcel_fuzzer/Android.bp b/libs/binder/tests/parcel_fuzzer/Android.bp
index 0210237..3904e1d 100644
--- a/libs/binder/tests/parcel_fuzzer/Android.bp
+++ b/libs/binder/tests/parcel_fuzzer/Android.bp
@@ -84,6 +84,7 @@
         },
     },
     srcs: [
+        "random_binder.cpp",
         "random_fd.cpp",
         "random_parcel.cpp",
         "libbinder_driver.cpp",
diff --git a/libs/gui/aidl/android/gui/MirrorSurfaceResult.aidl b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h
similarity index 63%
copy from libs/gui/aidl/android/gui/MirrorSurfaceResult.aidl
copy to libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h
index 9fac3e8..8fc9263 100644
--- a/libs/gui/aidl/android/gui/MirrorSurfaceResult.aidl
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_binder.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,10 +14,16 @@
  * limitations under the License.
  */
 
-package android.gui;
+#pragma once
 
-/** @hide */
-parcelable MirrorSurfaceResult {
-    IBinder handle;
-    int layerId;
-}
+#include <binder/IBinder.h>
+#include <fuzzer/FuzzedDataProvider.h>
+
+namespace android {
+
+// Get a random binder object for use in fuzzing.
+//
+// May return nullptr.
+sp<IBinder> getRandomBinder(FuzzedDataProvider* provider);
+
+} // namespace android
diff --git a/libs/binder/tests/parcel_fuzzer/random_binder.cpp b/libs/binder/tests/parcel_fuzzer/random_binder.cpp
new file mode 100644
index 0000000..8a1fecb
--- /dev/null
+++ b/libs/binder/tests/parcel_fuzzer/random_binder.cpp
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <fuzzbinder/random_binder.h>
+
+#include <fuzzbinder/random_parcel.h>
+
+#include <android-base/logging.h>
+#include <binder/IInterface.h>
+#include <binder/IServiceManager.h>
+
+namespace android {
+
+class RandomBinder : public BBinder {
+public:
+    RandomBinder(const String16& descriptor, std::vector<uint8_t>&& bytes)
+          : mDescriptor(descriptor),
+            mBytes(std::move(bytes)),
+            mProvider(mBytes.data(), mBytes.size()) {}
+    const String16& getInterfaceDescriptor() const override { return mDescriptor; }
+
+    status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) override {
+        (void)code;
+        (void)data;
+        (void)reply;
+        (void)flags; // note - for maximum coverage even ignore if oneway
+
+        if (mProvider.ConsumeBool()) {
+            return mProvider.ConsumeIntegral<status_t>();
+        }
+
+        if (reply == nullptr) return OK;
+
+        // TODO: things we could do to increase state space
+        // - also pull FDs and binders from 'data'
+        //     (optionally combine these into random parcel 'options')
+        // - also pull FDs and binders from random parcel 'options'
+        RandomParcelOptions options;
+
+        // random output
+        std::vector<uint8_t> subData = mProvider.ConsumeBytes<uint8_t>(
+                mProvider.ConsumeIntegralInRange<size_t>(0, mProvider.remaining_bytes()));
+        fillRandomParcel(reply, FuzzedDataProvider(subData.data(), subData.size()), &options);
+
+        return OK;
+    }
+
+private:
+    String16 mDescriptor;
+
+    // note may not all be used
+    std::vector<uint8_t> mBytes;
+    FuzzedDataProvider mProvider;
+};
+
+sp<IBinder> getRandomBinder(FuzzedDataProvider* provider) {
+    auto makeFunc = provider->PickValueInArray<const std::function<sp<IBinder>()>>({
+            [&]() {
+                // descriptor is the length of a class name, e.g.
+                // "some.package.Foo"
+                std::string str = provider->ConsumeRandomLengthString(100 /*max length*/);
+
+                // arbitrarily consume remaining data to create a binder that can return
+                // random results - coverage guided fuzzer should ensure all of the remaining
+                // data isn't always used
+                std::vector<uint8_t> bytes = provider->ConsumeBytes<uint8_t>(
+                        provider->ConsumeIntegralInRange<size_t>(0, provider->remaining_bytes()));
+
+                return new RandomBinder(String16(str.c_str()), std::move(bytes));
+            },
+            []() {
+                // this is the easiest remote binder to get ahold of, and it
+                // should be able to handle anything thrown at it, and
+                // essentially every process can talk to it, so it's a good
+                // candidate for checking usage of an actual BpBinder
+                return IInterface::asBinder(defaultServiceManager());
+            },
+            [&]() -> sp<IBinder> { return nullptr; },
+    });
+    return makeFunc();
+}
+
+} // namespace android
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
index 51cb768..edc695f 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
@@ -17,23 +17,14 @@
 #include <fuzzbinder/random_parcel.h>
 
 #include <android-base/logging.h>
-#include <binder/IServiceManager.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcTransportRaw.h>
+#include <fuzzbinder/random_binder.h>
 #include <fuzzbinder/random_fd.h>
 #include <utils/String16.h>
 
 namespace android {
 
-class NamedBinder : public BBinder {
-public:
-    NamedBinder(const String16& descriptor) : mDescriptor(descriptor) {}
-    const String16& getInterfaceDescriptor() const override { return mDescriptor; }
-
-private:
-    String16 mDescriptor;
-};
-
 static void fillRandomParcelData(Parcel* p, FuzzedDataProvider&& provider) {
     std::vector<uint8_t> data = provider.ConsumeBytes<uint8_t>(provider.remaining_bytes());
     CHECK(OK == p->write(data.data(), data.size()));
@@ -45,6 +36,11 @@
     if (provider.ConsumeBool()) {
         auto session = RpcSession::make(RpcTransportCtxFactoryRaw::make());
         CHECK_EQ(OK, session->addNullDebuggingClient());
+        // Set the protocol version so that we don't crash if the session
+        // actually gets used. This isn't cheating because the version should
+        // always be set if the session init succeeded and we aren't testing the
+        // session init here (it is bypassed by addNullDebuggingClient).
+        session->setProtocolVersion(RPC_WIRE_PROTOCOL_VERSION);
         p->markForRpc(session);
 
         if (options->writeHeader) {
@@ -89,32 +85,16 @@
                 },
                 // write binder
                 [&]() {
-                    auto makeFunc = provider.PickValueInArray<const std::function<sp<IBinder>()>>({
-                            [&]() {
-                                // descriptor is the length of a class name, e.g.
-                                // "some.package.Foo"
-                                std::string str =
-                                        provider.ConsumeRandomLengthString(100 /*max length*/);
-                                return new NamedBinder(String16(str.c_str()));
-                            },
-                            []() {
-                                // this is the easiest remote binder to get ahold of, and it
-                                // should be able to handle anything thrown at it, and
-                                // essentially every process can talk to it, so it's a good
-                                // candidate for checking usage of an actual BpBinder
-                                return IInterface::asBinder(defaultServiceManager());
-                            },
-                            [&]() -> sp<IBinder> {
-                                if (options->extraBinders.size() > 0 && provider.ConsumeBool()) {
-                                    return options->extraBinders.at(
-                                            provider.ConsumeIntegralInRange<
-                                                    size_t>(0, options->extraBinders.size() - 1));
-                                } else {
-                                    return nullptr;
-                                }
-                            },
-                    });
-                    sp<IBinder> binder = makeFunc();
+                    sp<IBinder> binder;
+                    if (options->extraBinders.size() > 0 && provider.ConsumeBool()) {
+                        binder = options->extraBinders.at(
+                                provider.ConsumeIntegralInRange<size_t>(0,
+                                                                        options->extraBinders
+                                                                                        .size() -
+                                                                                1));
+                    } else {
+                        binder = getRandomBinder(&provider);
+                    }
                     CHECK(OK == p->writeStrongBinder(binder));
                 },
         });
diff --git a/libs/binder/trusty/OS.cpp b/libs/binder/trusty/OS.cpp
index 46346bb..397ff41 100644
--- a/libs/binder/trusty/OS.cpp
+++ b/libs/binder/trusty/OS.cpp
@@ -16,6 +16,7 @@
 
 #if defined(TRUSTY_USERSPACE)
 #include <openssl/rand.h>
+#include <trusty_ipc.h>
 #else
 #include <lib/rand/rand.h>
 #endif
@@ -23,6 +24,7 @@
 #include <binder/RpcTransportTipcTrusty.h>
 
 #include "../OS.h"
+#include "TrustyStatus.h"
 
 using android::base::Result;
 
@@ -43,13 +45,32 @@
 #endif // TRUSTY_USERSPACE
 }
 
-status_t dupFileDescriptor(int /*oldFd*/, int* /*newFd*/) {
-    // TODO: implement separately
-    return INVALID_OPERATION;
+status_t dupFileDescriptor(int oldFd, int* newFd) {
+    int res = dup(oldFd);
+    if (res < 0) {
+        return statusFromTrusty(res);
+    }
+
+    *newFd = res;
+    return OK;
 }
 
 std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory() {
     return RpcTransportCtxFactoryTipcTrusty::make();
 }
 
+int sendMessageOnSocket(
+        const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
+        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) {
+    errno = ENOTSUP;
+    return -1;
+}
+
+int receiveMessageFromSocket(
+        const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
+        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) {
+    errno = ENOTSUP;
+    return -1;
+}
+
 } // namespace android
diff --git a/libs/binder/trusty/RpcTransportTipcTrusty.cpp b/libs/binder/trusty/RpcTransportTipcTrusty.cpp
index 0b67b9f..58bfe71 100644
--- a/libs/binder/trusty/RpcTransportTipcTrusty.cpp
+++ b/libs/binder/trusty/RpcTransportTipcTrusty.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "RpcTransportTipcTrusty"
 
+#include <inttypes.h>
 #include <trusty_ipc.h>
 
 #include <binder/RpcSession.h>
@@ -47,7 +48,7 @@
     status_t interruptableWriteFully(
             FdTrigger* /*fdTrigger*/, iovec* iovs, int niovs,
             const std::optional<android::base::function_ref<status_t()>>& /*altPoll*/,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /*ancillaryFds*/)
+            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
             override {
         if (niovs < 0) {
             return BAD_VALUE;
@@ -58,12 +59,32 @@
             size += iovs[i].iov_len;
         }
 
+        handle_t msgHandles[IPC_MAX_MSG_HANDLES];
         ipc_msg_t msg{
                 .num_iov = static_cast<uint32_t>(niovs),
                 .iov = iovs,
-                .num_handles = 0, // TODO: add ancillaryFds
+                .num_handles = 0,
                 .handles = nullptr,
         };
+
+        if (ancillaryFds != nullptr && !ancillaryFds->empty()) {
+            if (ancillaryFds->size() > IPC_MAX_MSG_HANDLES) {
+                // This shouldn't happen because we check the FD count in RpcState.
+                ALOGE("Saw too many file descriptors in RpcTransportCtxTipcTrusty: "
+                      "%zu (max is %u). Aborting session.",
+                      ancillaryFds->size(), IPC_MAX_MSG_HANDLES);
+                return BAD_VALUE;
+            }
+
+            for (size_t i = 0; i < ancillaryFds->size(); i++) {
+                msgHandles[i] =
+                        std::visit([](const auto& fd) { return fd.get(); }, ancillaryFds->at(i));
+            }
+
+            msg.num_handles = ancillaryFds->size();
+            msg.handles = msgHandles;
+        }
+
         ssize_t rc = send_msg(mSocket.fd.get(), &msg);
         if (rc == ERR_NOT_ENOUGH_BUFFER) {
             // Peer is blocked, wait until it unblocks.
@@ -97,8 +118,7 @@
     status_t interruptableReadFully(
             FdTrigger* /*fdTrigger*/, iovec* iovs, int niovs,
             const std::optional<android::base::function_ref<status_t()>>& /*altPoll*/,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /*ancillaryFds*/)
-            override {
+            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override {
         if (niovs < 0) {
             return BAD_VALUE;
         }
@@ -124,11 +144,16 @@
                 return status;
             }
 
+            LOG_ALWAYS_FATAL_IF(mMessageInfo.num_handles > IPC_MAX_MSG_HANDLES,
+                                "Received too many handles %" PRIu32, mMessageInfo.num_handles);
+            bool haveHandles = mMessageInfo.num_handles != 0;
+            handle_t msgHandles[IPC_MAX_MSG_HANDLES];
+
             ipc_msg_t msg{
                     .num_iov = static_cast<uint32_t>(niovs),
                     .iov = iovs,
-                    .num_handles = 0, // TODO: support ancillaryFds
-                    .handles = nullptr,
+                    .num_handles = mMessageInfo.num_handles,
+                    .handles = haveHandles ? msgHandles : 0,
             };
             ssize_t rc = read_msg(mSocket.fd.get(), mMessageInfo.id, mMessageOffset, &msg);
             if (rc < 0) {
@@ -141,6 +166,28 @@
                                 "Message offset exceeds length %zu/%zu", mMessageOffset,
                                 mMessageInfo.len);
 
+            if (haveHandles) {
+                if (ancillaryFds != nullptr) {
+                    ancillaryFds->reserve(ancillaryFds->size() + mMessageInfo.num_handles);
+                    for (size_t i = 0; i < mMessageInfo.num_handles; i++) {
+                        ancillaryFds->emplace_back(base::unique_fd(msgHandles[i]));
+                    }
+
+                    // Clear the saved number of handles so we don't accidentally
+                    // read them multiple times
+                    mMessageInfo.num_handles = 0;
+                    haveHandles = false;
+                } else {
+                    ALOGE("Received unexpected handles %" PRIu32, mMessageInfo.num_handles);
+                    // It should be safe to continue here. We could abort, but then
+                    // peers could DoS us by sending messages with handles in them.
+                    // Close the handles since we are ignoring them.
+                    for (size_t i = 0; i < mMessageInfo.num_handles; i++) {
+                        ::close(msgHandles[i]);
+                    }
+                }
+            }
+
             // Release the message if all of it has been read
             if (mMessageOffset == mMessageInfo.len) {
                 releaseMessage();
diff --git a/libs/binder/trusty/include/binder/RpcServerTrusty.h b/libs/binder/trusty/include/binder/RpcServerTrusty.h
index cc31c95..7d9dd8c 100644
--- a/libs/binder/trusty/include/binder/RpcServerTrusty.h
+++ b/libs/binder/trusty/include/binder/RpcServerTrusty.h
@@ -60,6 +60,10 @@
             std::unique_ptr<RpcTransportCtxFactory> rpcTransportCtxFactory = nullptr);
 
     void setProtocolVersion(uint32_t version) { mRpcServer->setProtocolVersion(version); }
+    void setSupportedFileDescriptorTransportModes(
+            const std::vector<RpcSession::FileDescriptorTransportMode>& modes) {
+        mRpcServer->setSupportedFileDescriptorTransportModes(modes);
+    }
     void setRootObject(const sp<IBinder>& binder) { mRpcServer->setRootObject(binder); }
     void setRootObjectWeak(const wp<IBinder>& binder) { mRpcServer->setRootObjectWeak(binder); }
     void setPerSessionRootObject(std::function<sp<IBinder>(const void*, size_t)>&& object) {
diff --git a/libs/gui/aidl/android/gui/MirrorSurfaceResult.aidl b/libs/binder/trusty/ndk/include/sys/cdefs.h
similarity index 66%
rename from libs/gui/aidl/android/gui/MirrorSurfaceResult.aidl
rename to libs/binder/trusty/ndk/include/sys/cdefs.h
index 9fac3e8..6a48d2b 100644
--- a/libs/gui/aidl/android/gui/MirrorSurfaceResult.aidl
+++ b/libs/binder/trusty/ndk/include/sys/cdefs.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 The Android Open Source Project
+ * Copyright (C) 2022 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,11 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#pragma once
 
-package android.gui;
+#include <lk/compiler.h>
 
-/** @hide */
-parcelable MirrorSurfaceResult {
-    IBinder handle;
-    int layerId;
-}
+/* Alias the bionic macros to the ones from lk/compiler.h */
+#define __BEGIN_DECLS __BEGIN_CDECLS
+#define __END_DECLS __END_CDECLS
+
+#define __INTRODUCED_IN(x) /* nothing on Trusty */
diff --git a/libs/binder/trusty/ndk/rules.mk b/libs/binder/trusty/ndk/rules.mk
new file mode 100644
index 0000000..03fd006
--- /dev/null
+++ b/libs/binder/trusty/ndk/rules.mk
@@ -0,0 +1,38 @@
+# Copyright (C) 2021 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+MODULE := $(LOCAL_DIR)
+
+LIBBINDER_NDK_DIR := frameworks/native/libs/binder/ndk
+
+MODULE_SRCS := \
+	$(LIBBINDER_NDK_DIR)/ibinder.cpp \
+	$(LIBBINDER_NDK_DIR)/libbinder.cpp \
+	$(LIBBINDER_NDK_DIR)/parcel.cpp \
+	$(LIBBINDER_NDK_DIR)/status.cpp \
+
+MODULE_EXPORT_INCLUDES += \
+	$(LOCAL_DIR)/include \
+	$(LIBBINDER_NDK_DIR)/include_cpp \
+	$(LIBBINDER_NDK_DIR)/include_ndk \
+	$(LIBBINDER_NDK_DIR)/include_platform \
+
+MODULE_LIBRARY_DEPS += \
+	trusty/user/base/lib/libstdc++-trusty \
+	frameworks/native/libs/binder/trusty \
+
+include make/library.mk
diff --git a/libs/gui/Android.bp b/libs/gui/Android.bp
index d3144bb..23a2181 100644
--- a/libs/gui/Android.bp
+++ b/libs/gui/Android.bp
@@ -217,7 +217,6 @@
         "SurfaceControl.cpp",
         "SurfaceComposerClient.cpp",
         "SyncFeatures.cpp",
-        "TransactionTracing.cpp",
         "VsyncEventData.cpp",
         "view/Surface.cpp",
         "WindowInfosListenerReporter.cpp",
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index af64b3b..4c887ec 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -19,7 +19,6 @@
 
 #include <android/gui/IDisplayEventConnection.h>
 #include <android/gui/IRegionSamplingListener.h>
-#include <android/gui/ITransactionTraceListener.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/Parcel.h>
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 4d5978c..2759c58 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -634,7 +634,7 @@
 }
 
 bool layer_state_t::hasValidBuffer() const {
-    return bufferData && (bufferData->buffer || bufferData->cachedBuffer.isValid());
+    return bufferData && (bufferData->hasBuffer() || bufferData->cachedBuffer.isValid());
 }
 
 status_t layer_state_t::matrix22_t::write(Parcel& output) const {
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 4b4d46a..c4fb1cf 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -56,6 +56,12 @@
 
 namespace {
 
+enum {
+    // moved from nativewindow/include/system/window.h, to be removed
+    NATIVE_WINDOW_GET_WIDE_COLOR_SUPPORT = 28,
+    NATIVE_WINDOW_GET_HDR_SUPPORT = 29,
+};
+
 bool isInterceptorRegistrationOp(int op) {
     return op == NATIVE_WINDOW_SET_CANCEL_INTERCEPTOR ||
             op == NATIVE_WINDOW_SET_DEQUEUE_INTERCEPTOR ||
@@ -348,34 +354,25 @@
     return NO_ERROR;
 }
 
+// Deprecated(b/242763577): to be removed, this method should not be used
+// The reason this method still exists here is to support compiled vndk
+// Surface support should not be tied to the display
+// Return true since most displays should have this support
 status_t Surface::getWideColorSupport(bool* supported) {
     ATRACE_CALL();
 
-    const sp<IBinder> display = ComposerServiceAIDL::getInstance().getInternalDisplayToken();
-    if (display == nullptr) {
-        return NAME_NOT_FOUND;
-    }
-
-    *supported = false;
-    binder::Status status = composerServiceAIDL()->isWideColorDisplay(display, supported);
-    return statusTFromBinderStatus(status);
+    *supported = true;
+    return NO_ERROR;
 }
 
+// Deprecated(b/242763577): to be removed, this method should not be used
+// The reason this method still exists here is to support compiled vndk
+// Surface support should not be tied to the display
+// Return true since most displays should have this support
 status_t Surface::getHdrSupport(bool* supported) {
     ATRACE_CALL();
 
-    const sp<IBinder> display = ComposerServiceAIDL::getInstance().getInternalDisplayToken();
-    if (display == nullptr) {
-        return NAME_NOT_FOUND;
-    }
-
-    gui::DynamicDisplayInfo info;
-    if (binder::Status status = composerServiceAIDL()->getDynamicDisplayInfo(display, &info);
-        !status.isOk()) {
-        return statusTFromBinderStatus(status);
-    }
-
-    *supported = !info.hdrCapabilities.supportedHdrTypes.empty();
+    *supported = true;
     return NO_ERROR;
 }
 
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index d780173..81b4d3d 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1130,11 +1130,6 @@
     return physicalDisplayIds;
 }
 
-std::optional<PhysicalDisplayId> SurfaceComposerClient::getInternalDisplayId() {
-    ComposerServiceAIDL& instance = ComposerServiceAIDL::getInstance();
-    return instance.getInternalDisplayId();
-}
-
 sp<IBinder> SurfaceComposerClient::getPhysicalDisplayToken(PhysicalDisplayId displayId) {
     sp<IBinder> display = nullptr;
     binder::Status status =
@@ -1143,11 +1138,6 @@
     return status.isOk() ? display : nullptr;
 }
 
-sp<IBinder> SurfaceComposerClient::getInternalDisplayToken() {
-    ComposerServiceAIDL& instance = ComposerServiceAIDL::getInstance();
-    return instance.getInternalDisplayToken();
-}
-
 void SurfaceComposerClient::Transaction::setAnimationTransaction() {
     mAnimation = true;
 }
@@ -2156,6 +2146,10 @@
     return s;
 }
 
+static std::string toString(const String16& string) {
+    return std::string(String8(string).c_str());
+}
+
 status_t SurfaceComposerClient::createSurfaceChecked(const String8& name, uint32_t w, uint32_t h,
                                                      PixelFormat format,
                                                      sp<SurfaceControl>* outSurface, int32_t flags,
@@ -2175,7 +2169,8 @@
         }
         ALOGE_IF(err, "SurfaceComposerClient::createSurface error %s", strerror(-err));
         if (err == NO_ERROR) {
-            *outSurface = new SurfaceControl(this, result.handle, result.layerId, w, h, format,
+            *outSurface = new SurfaceControl(this, result.handle, result.layerId,
+                                             toString(result.layerName), w, h, format,
                                              result.transformHint, flags);
         }
     }
@@ -2188,21 +2183,21 @@
     }
 
     sp<IBinder> mirrorFromHandle = mirrorFromSurface->getHandle();
-    gui::MirrorSurfaceResult result;
+    gui::CreateSurfaceResult result;
     const binder::Status status = mClient->mirrorSurface(mirrorFromHandle, &result);
     const status_t err = statusTFromBinderStatus(status);
     if (err == NO_ERROR) {
-        return new SurfaceControl(this, result.handle, result.layerId);
+        return new SurfaceControl(this, result.handle, result.layerId, toString(result.layerName));
     }
     return nullptr;
 }
 
 sp<SurfaceControl> SurfaceComposerClient::mirrorDisplay(DisplayId displayId) {
-    gui::MirrorSurfaceResult result;
+    gui::CreateSurfaceResult result;
     const binder::Status status = mClient->mirrorDisplay(displayId.value, &result);
     const status_t err = statusTFromBinderStatus(status);
     if (err == NO_ERROR) {
-        return new SurfaceControl(this, result.handle, result.layerId);
+        return new SurfaceControl(this, result.handle, result.layerId, toString(result.layerName));
     }
     return nullptr;
 }
@@ -2242,18 +2237,6 @@
 
 // ----------------------------------------------------------------------------
 
-status_t SurfaceComposerClient::enableVSyncInjections(bool enable) {
-    sp<gui::ISurfaceComposer> sf(ComposerServiceAIDL::getComposerService());
-    binder::Status status = sf->enableVSyncInjections(enable);
-    return statusTFromBinderStatus(status);
-}
-
-status_t SurfaceComposerClient::injectVSync(nsecs_t when) {
-    sp<gui::ISurfaceComposer> sf(ComposerServiceAIDL::getComposerService());
-    binder::Status status = sf->injectVSync(when);
-    return statusTFromBinderStatus(status);
-}
-
 status_t SurfaceComposerClient::getDisplayState(const sp<IBinder>& display,
                                                 ui::DisplayState* state) {
     gui::DisplayState ds;
@@ -2750,8 +2733,7 @@
             ComposerServiceAIDL::getComposerService()->getDisplayDecorationSupport(displayToken,
                                                                                    &gsupport);
     std::optional<DisplayDecorationSupport> support;
-    // TODO (b/241277093): Remove `false && ` once b/241278870 is fixed.
-    if (false && status.isOk() && gsupport.has_value()) {
+    if (status.isOk() && gsupport.has_value()) {
         support.emplace(DisplayDecorationSupport{
           .format =
                 static_cast<aidl::android::hardware::graphics::common::PixelFormat>(
diff --git a/libs/gui/SurfaceControl.cpp b/libs/gui/SurfaceControl.cpp
index 84257de..7aee882 100644
--- a/libs/gui/SurfaceControl.cpp
+++ b/libs/gui/SurfaceControl.cpp
@@ -49,11 +49,12 @@
 // ============================================================================
 
 SurfaceControl::SurfaceControl(const sp<SurfaceComposerClient>& client, const sp<IBinder>& handle,
-                               int32_t layerId, uint32_t w, uint32_t h, PixelFormat format,
-                               uint32_t transform, uint32_t flags)
+                               int32_t layerId, const std::string& name, uint32_t w, uint32_t h,
+                               PixelFormat format, uint32_t transform, uint32_t flags)
       : mClient(client),
         mHandle(handle),
         mLayerId(layerId),
+        mName(name),
         mTransformHint(transform),
         mWidth(w),
         mHeight(h),
@@ -65,6 +66,7 @@
     mHandle = other->mHandle;
     mTransformHint = other->mTransformHint;
     mLayerId = other->mLayerId;
+    mName = other->mName;
     mWidth = other->mWidth;
     mHeight = other->mHeight;
     mFormat = other->mFormat;
@@ -185,6 +187,10 @@
     return mLayerId;
 }
 
+const std::string& SurfaceControl::getName() const {
+    return mName;
+}
+
 sp<IGraphicBufferProducer> SurfaceControl::getIGraphicBufferProducer()
 {
     getSurface();
@@ -212,6 +218,7 @@
     SAFE_PARCEL(parcel.writeStrongBinder, ISurfaceComposerClient::asBinder(mClient->getClient()));
     SAFE_PARCEL(parcel.writeStrongBinder, mHandle);
     SAFE_PARCEL(parcel.writeInt32, mLayerId);
+    SAFE_PARCEL(parcel.writeUtf8AsUtf16, mName);
     SAFE_PARCEL(parcel.writeUint32, mTransformHint);
     SAFE_PARCEL(parcel.writeUint32, mWidth);
     SAFE_PARCEL(parcel.writeUint32, mHeight);
@@ -225,6 +232,7 @@
     sp<IBinder> client;
     sp<IBinder> handle;
     int32_t layerId;
+    std::string layerName;
     uint32_t transformHint;
     uint32_t width;
     uint32_t height;
@@ -233,16 +241,17 @@
     SAFE_PARCEL(parcel.readStrongBinder, &client);
     SAFE_PARCEL(parcel.readStrongBinder, &handle);
     SAFE_PARCEL(parcel.readInt32, &layerId);
+    SAFE_PARCEL(parcel.readUtf8FromUtf16, &layerName);
     SAFE_PARCEL(parcel.readUint32, &transformHint);
     SAFE_PARCEL(parcel.readUint32, &width);
     SAFE_PARCEL(parcel.readUint32, &height);
     SAFE_PARCEL(parcel.readUint32, &format);
 
     // We aren't the original owner of the surface.
-    *outSurfaceControl =
-            new SurfaceControl(new SurfaceComposerClient(
-                                       interface_cast<ISurfaceComposerClient>(client)),
-                               handle.get(), layerId, width, height, format, transformHint);
+    *outSurfaceControl = new SurfaceControl(new SurfaceComposerClient(
+                                                    interface_cast<ISurfaceComposerClient>(client)),
+                                            handle.get(), layerId, layerName, width, height, format,
+                                            transformHint);
 
     return NO_ERROR;
 }
diff --git a/libs/gui/TransactionTracing.cpp b/libs/gui/TransactionTracing.cpp
deleted file mode 100644
index 59450fb..0000000
--- a/libs/gui/TransactionTracing.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "gui/TransactionTracing.h"
-#include "android/gui/ISurfaceComposer.h"
-
-#include <private/gui/ComposerServiceAIDL.h>
-
-namespace android {
-
-sp<TransactionTraceListener> TransactionTraceListener::sInstance = nullptr;
-std::mutex TransactionTraceListener::sMutex;
-
-TransactionTraceListener::TransactionTraceListener() {}
-
-sp<TransactionTraceListener> TransactionTraceListener::getInstance() {
-    const std::lock_guard<std::mutex> lock(sMutex);
-
-    if (sInstance == nullptr) {
-        sInstance = new TransactionTraceListener;
-
-        sp<gui::ISurfaceComposer> sf(ComposerServiceAIDL::getComposerService());
-        sf->addTransactionTraceListener(sInstance);
-    }
-
-    return sInstance;
-}
-
-binder::Status TransactionTraceListener::onToggled(bool enabled) {
-    ALOGD("TransactionTraceListener: onToggled listener called");
-    mTracingEnabled = enabled;
-
-    return binder::Status::ok();
-}
-
-bool TransactionTraceListener::isTracingEnabled() {
-    return mTracingEnabled;
-}
-
-} // namespace android
diff --git a/libs/gui/aidl/android/gui/CreateSurfaceResult.aidl b/libs/gui/aidl/android/gui/CreateSurfaceResult.aidl
index 39e4916..eea12dc 100644
--- a/libs/gui/aidl/android/gui/CreateSurfaceResult.aidl
+++ b/libs/gui/aidl/android/gui/CreateSurfaceResult.aidl
@@ -20,5 +20,6 @@
 parcelable CreateSurfaceResult {
     IBinder handle;
     int layerId;
+    String layerName;
     int transformHint;
 }
diff --git a/libs/gui/aidl/android/gui/ISurfaceComposer.aidl b/libs/gui/aidl/android/gui/ISurfaceComposer.aidl
index 3c220fc..ca0b97f 100644
--- a/libs/gui/aidl/android/gui/ISurfaceComposer.aidl
+++ b/libs/gui/aidl/android/gui/ISurfaceComposer.aidl
@@ -36,7 +36,6 @@
 import android.gui.IRegionSamplingListener;
 import android.gui.IScreenCaptureListener;
 import android.gui.ISurfaceComposerClient;
-import android.gui.ITransactionTraceListener;
 import android.gui.ITunnelModeEnabledListener;
 import android.gui.IWindowInfosListener;
 import android.gui.LayerCaptureArgs;
@@ -225,10 +224,6 @@
      */
     PullAtomData onPullAtom(int atomId);
 
-    oneway void enableVSyncInjections(boolean enable);
-
-    oneway void injectVSync(long when);
-
     /**
      * Gets the list of active layers in Z order for debugging purposes
      *
@@ -453,11 +448,6 @@
     void setOverrideFrameRate(int uid, float frameRate);
 
     /**
-     * Adds a TransactionTraceListener to listen for transaction tracing state updates.
-     */
-    void addTransactionTraceListener(ITransactionTraceListener listener);
-
-    /**
      * Gets priority of the RenderEngine in SurfaceFlinger.
      */
     int getGpuContextPriority();
diff --git a/libs/gui/aidl/android/gui/ISurfaceComposerClient.aidl b/libs/gui/aidl/android/gui/ISurfaceComposerClient.aidl
index b8ee4d7..68781ce 100644
--- a/libs/gui/aidl/android/gui/ISurfaceComposerClient.aidl
+++ b/libs/gui/aidl/android/gui/ISurfaceComposerClient.aidl
@@ -19,7 +19,6 @@
 import android.gui.CreateSurfaceResult;
 import android.gui.FrameStats;
 import android.gui.LayerMetadata;
-import android.gui.MirrorSurfaceResult;
 
 /** @hide */
 interface ISurfaceComposerClient {
@@ -58,7 +57,7 @@
      */
     FrameStats getLayerFrameStats(IBinder handle);
 
-    MirrorSurfaceResult mirrorSurface(IBinder mirrorFromHandle);
+    CreateSurfaceResult mirrorSurface(IBinder mirrorFromHandle);
 
-    MirrorSurfaceResult mirrorDisplay(long displayId);
+    CreateSurfaceResult mirrorDisplay(long displayId);
 }
diff --git a/libs/gui/aidl/android/gui/ITransactionTraceListener.aidl b/libs/gui/aidl/android/gui/ITransactionTraceListener.aidl
deleted file mode 100644
index 5cd12fd..0000000
--- a/libs/gui/aidl/android/gui/ITransactionTraceListener.aidl
+++ /dev/null
@@ -1,6 +0,0 @@
-package android.gui;
-
-/** @hide */
-interface ITransactionTraceListener {
-   void onToggled(boolean enabled);
-}
\ No newline at end of file
diff --git a/libs/gui/fuzzer/libgui_bufferQueue_fuzzer.cpp b/libs/gui/fuzzer/libgui_bufferQueue_fuzzer.cpp
index 7829e94..761f08f 100644
--- a/libs/gui/fuzzer/libgui_bufferQueue_fuzzer.cpp
+++ b/libs/gui/fuzzer/libgui_bufferQueue_fuzzer.cpp
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#include <android-base/stringprintf.h>
 #include <gui/BufferQueueConsumer.h>
 #include <gui/BufferQueueCore.h>
 #include <gui/BufferQueueProducer.h>
@@ -91,8 +92,10 @@
     const sp<FakeBnSurfaceComposerClient> testClient(new FakeBnSurfaceComposerClient());
     sp<SurfaceComposerClient> client = new SurfaceComposerClient(testClient);
     sp<BnGraphicBufferProducer> producer;
-    return sp<SurfaceControl>::make(client, handle, mFdp.ConsumeIntegral<int32_t>(),
-                                    mFdp.ConsumeIntegral<uint32_t>(),
+    uint32_t layerId = mFdp.ConsumeIntegral<uint32_t>();
+    std::string layerName = base::StringPrintf("#%d", layerId);
+    return sp<SurfaceControl>::make(client, handle, layerId, layerName,
+                                    mFdp.ConsumeIntegral<int32_t>(),
                                     mFdp.ConsumeIntegral<uint32_t>(),
                                     mFdp.ConsumeIntegral<int32_t>(),
                                     mFdp.ConsumeIntegral<uint32_t>(),
diff --git a/libs/gui/fuzzer/libgui_fuzzer_utils.h b/libs/gui/fuzzer/libgui_fuzzer_utils.h
index d51f685..315b925 100644
--- a/libs/gui/fuzzer/libgui_fuzzer_utils.h
+++ b/libs/gui/fuzzer/libgui_fuzzer_utils.h
@@ -102,8 +102,6 @@
     MOCK_METHOD(binder::Status, overrideHdrTypes, (const sp<IBinder>&, const std::vector<int32_t>&),
                 (override));
     MOCK_METHOD(binder::Status, onPullAtom, (int32_t, gui::PullAtomData*), (override));
-    MOCK_METHOD(binder::Status, enableVSyncInjections, (bool), (override));
-    MOCK_METHOD(binder::Status, injectVSync, (int64_t), (override));
     MOCK_METHOD(binder::Status, getLayerDebugInfo, (std::vector<gui::LayerDebugInfo>*), (override));
     MOCK_METHOD(binder::Status, getColorManagement, (bool*), (override));
     MOCK_METHOD(binder::Status, getCompositionPreference, (gui::CompositionPreference*),
@@ -148,8 +146,6 @@
     MOCK_METHOD(binder::Status, getDisplayDecorationSupport,
                 (const sp<IBinder>&, std::optional<gui::DisplayDecorationSupport>*), (override));
     MOCK_METHOD(binder::Status, setOverrideFrameRate, (int32_t, float), (override));
-    MOCK_METHOD(binder::Status, addTransactionTraceListener,
-                (const sp<gui::ITransactionTraceListener>&), (override));
     MOCK_METHOD(binder::Status, getGpuContextPriority, (int32_t*), (override));
     MOCK_METHOD(binder::Status, getMaxAcquiredBufferCount, (int32_t*), (override));
     MOCK_METHOD(binder::Status, addWindowInfosListener, (const sp<gui::IWindowInfosListener>&),
@@ -171,11 +167,11 @@
                 (const sp<IBinder>& handle, gui::FrameStats* outStats), (override));
 
     MOCK_METHOD(binder::Status, mirrorSurface,
-                (const sp<IBinder>& mirrorFromHandle, gui::MirrorSurfaceResult* outResult),
+                (const sp<IBinder>& mirrorFromHandle, gui::CreateSurfaceResult* outResult),
                 (override));
 
     MOCK_METHOD(binder::Status, mirrorDisplay,
-                (int64_t displayId, gui::MirrorSurfaceResult* outResult), (override));
+                (int64_t displayId, gui::CreateSurfaceResult* outResult), (override));
 };
 
 class FakeDisplayEventDispatcher : public DisplayEventDispatcher {
diff --git a/libs/gui/fuzzer/libgui_surfaceComposerClient_fuzzer.cpp b/libs/gui/fuzzer/libgui_surfaceComposerClient_fuzzer.cpp
index 48c90c5..eecbe0f 100644
--- a/libs/gui/fuzzer/libgui_surfaceComposerClient_fuzzer.cpp
+++ b/libs/gui/fuzzer/libgui_surfaceComposerClient_fuzzer.cpp
@@ -18,6 +18,7 @@
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 #include <libgui_fuzzer_utils.h>
+#include "android-base/stringprintf.h"
 
 using namespace android;
 
@@ -175,7 +176,9 @@
     uint32_t flags = mFdp.ConsumeIntegral<uint32_t>();
     int32_t format = mFdp.ConsumeIntegral<int32_t>();
     int32_t layerId = mFdp.ConsumeIntegral<int32_t>();
-    return new SurfaceControl(client, handle, layerId, width, height, format, transformHint, flags);
+    std::string layerName = base::StringPrintf("#%d", layerId);
+    return new SurfaceControl(client, handle, layerId, layerName, width, height, format,
+                              transformHint, flags);
 }
 
 void SurfaceComposerClientFuzzer::invokeSurfaceComposerTransaction() {
@@ -268,10 +271,6 @@
     sp<Surface> surfaceParent(
             new Surface(producer, mFdp.ConsumeBool() /*controlledByApp*/, handle));
 
-    SurfaceComposerClient::enableVSyncInjections(mFdp.ConsumeBool() /*secure*/);
-    nsecs_t when = mFdp.ConsumeIntegral<uint32_t>();
-    SurfaceComposerClient::injectVSync(when);
-
     fuzzOnPullAtom();
     SurfaceComposerClient::setDisplayContentSamplingEnabled(displayToken,
                                                             mFdp.ConsumeBool() /*enable*/,
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index d46c2e7..e91d754 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -23,7 +23,6 @@
 #include <android/gui/IHdrLayerInfoListener.h>
 #include <android/gui/IRegionSamplingListener.h>
 #include <android/gui/IScreenCaptureListener.h>
-#include <android/gui/ITransactionTraceListener.h>
 #include <android/gui/ITunnelModeEnabledListener.h>
 #include <android/gui/IWindowInfosListener.h>
 #include <binder/IBinder.h>
diff --git a/libs/gui/include/gui/Surface.h b/libs/gui/include/gui/Surface.h
index 634acb6..1f19f4e 100644
--- a/libs/gui/include/gui/Surface.h
+++ b/libs/gui/include/gui/Surface.h
@@ -187,8 +187,8 @@
             nsecs_t* outDisplayPresentTime, nsecs_t* outDequeueReadyTime,
             nsecs_t* outReleaseTime);
 
-    status_t getWideColorSupport(bool* supported);
-    status_t getHdrSupport(bool* supported);
+    status_t getWideColorSupport(bool* supported) __attribute__((__deprecated__));
+    status_t getHdrSupport(bool* supported) __attribute__((__deprecated__));
 
     status_t getUniqueId(uint64_t* outId) const;
     status_t getConsumerUsage(uint64_t* outUsage) const;
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 242eceb..d138d68 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -354,15 +354,9 @@
 
     //! Get stable IDs for connected physical displays
     static std::vector<PhysicalDisplayId> getPhysicalDisplayIds();
-    static std::optional<PhysicalDisplayId> getInternalDisplayId();
 
     //! Get token for a physical display given its stable ID
     static sp<IBinder> getPhysicalDisplayToken(PhysicalDisplayId displayId);
-    static sp<IBinder> getInternalDisplayToken();
-
-    static status_t enableVSyncInjections(bool enable);
-
-    static status_t injectVSync(nsecs_t when);
 
     struct SCHash {
         std::size_t operator()(const sp<SurfaceControl>& sc) const {
diff --git a/libs/gui/include/gui/SurfaceControl.h b/libs/gui/include/gui/SurfaceControl.h
index e4a1350..1d4fc7f 100644
--- a/libs/gui/include/gui/SurfaceControl.h
+++ b/libs/gui/include/gui/SurfaceControl.h
@@ -78,6 +78,7 @@
     sp<IBinder> getHandle() const;
     sp<IBinder> getLayerStateHandle() const;
     int32_t getLayerId() const;
+    const std::string& getName() const;
 
     sp<IGraphicBufferProducer> getIGraphicBufferProducer();
 
@@ -94,8 +95,9 @@
     explicit SurfaceControl(const sp<SurfaceControl>& other);
 
     SurfaceControl(const sp<SurfaceComposerClient>& client, const sp<IBinder>& handle,
-                   int32_t layerId, uint32_t width = 0, uint32_t height = 0, PixelFormat format = 0,
-                   uint32_t transformHint = 0, uint32_t flags = 0);
+                   int32_t layerId, const std::string& layerName, uint32_t width = 0,
+                   uint32_t height = 0, PixelFormat format = 0, uint32_t transformHint = 0,
+                   uint32_t flags = 0);
 
     sp<SurfaceControl> getParentingLayer();
 
@@ -121,6 +123,7 @@
     mutable sp<BLASTBufferQueue> mBbq;
     mutable sp<SurfaceControl> mBbqChild;
     int32_t mLayerId = 0;
+    std::string mName;
     uint32_t mTransformHint = 0;
     uint32_t mWidth = 0;
     uint32_t mHeight = 0;
diff --git a/libs/gui/include/gui/TransactionTracing.h b/libs/gui/include/gui/TransactionTracing.h
deleted file mode 100644
index 9efba47..0000000
--- a/libs/gui/include/gui/TransactionTracing.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/gui/BnTransactionTraceListener.h>
-#include <utils/Mutex.h>
-
-namespace android {
-
-class TransactionTraceListener : public gui::BnTransactionTraceListener {
-    static std::mutex sMutex;
-    static sp<TransactionTraceListener> sInstance;
-
-    TransactionTraceListener();
-
-public:
-    static sp<TransactionTraceListener> getInstance();
-
-    binder::Status onToggled(bool enabled) override;
-
-    bool isTracingEnabled();
-
-private:
-    bool mTracingEnabled = false;
-};
-
-} // namespace android
diff --git a/libs/gui/include/gui/fake/BufferData.h b/libs/gui/include/gui/fake/BufferData.h
new file mode 100644
index 0000000..725d11c
--- /dev/null
+++ b/libs/gui/include/gui/fake/BufferData.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <gui/LayerState.h>
+
+namespace android::fake {
+
+// Class which exposes buffer properties from BufferData without holding on to an actual buffer
+class BufferData : public android::BufferData {
+public:
+    BufferData(uint64_t bufferId, uint32_t width, uint32_t height, int32_t pixelFormat,
+               uint64_t outUsage)
+          : mBufferId(bufferId),
+            mWidth(width),
+            mHeight(height),
+            mPixelFormat(pixelFormat),
+            mOutUsage(outUsage) {}
+    bool hasBuffer() const override { return mBufferId != 0; }
+    bool hasSameBuffer(const android::BufferData& other) const override {
+        return getId() == other.getId() && frameNumber == other.frameNumber;
+    }
+    uint32_t getWidth() const override { return mWidth; }
+    uint32_t getHeight() const override { return mHeight; }
+    uint64_t getId() const override { return mBufferId; }
+    PixelFormat getPixelFormat() const override { return mPixelFormat; }
+    uint64_t getUsage() const override { return mOutUsage; }
+
+private:
+    uint64_t mBufferId;
+    uint32_t mWidth;
+    uint32_t mHeight;
+    int32_t mPixelFormat;
+    uint64_t mOutUsage;
+};
+
+} // namespace android::fake
diff --git a/libs/gui/include/private/gui/ComposerServiceAIDL.h b/libs/gui/include/private/gui/ComposerServiceAIDL.h
index 2963583..6352a58 100644
--- a/libs/gui/include/private/gui/ComposerServiceAIDL.h
+++ b/libs/gui/include/private/gui/ComposerServiceAIDL.h
@@ -51,28 +51,6 @@
     // Get a connection to the Composer Service.  This will block until
     // a connection is established. Returns null if permission is denied.
     static sp<gui::ISurfaceComposer> getComposerService();
-
-    // the following two methods are moved from ISurfaceComposer.h
-    // TODO(b/74619554): Remove this stopgap once the framework is display-agnostic.
-    std::optional<PhysicalDisplayId> getInternalDisplayId() const {
-        std::vector<int64_t> displayIds;
-        binder::Status status = mComposerService->getPhysicalDisplayIds(&displayIds);
-        return (!status.isOk() || displayIds.empty())
-                ? std::nullopt
-                : DisplayId::fromValue<PhysicalDisplayId>(
-                          static_cast<uint64_t>(displayIds.front()));
-    }
-
-    // TODO(b/74619554): Remove this stopgap once the framework is display-agnostic.
-    sp<IBinder> getInternalDisplayToken() const {
-        const auto displayId = getInternalDisplayId();
-        if (!displayId) return nullptr;
-        sp<IBinder> display;
-        binder::Status status =
-                mComposerService->getPhysicalDisplayToken(static_cast<int64_t>(displayId->value),
-                                                          &display);
-        return status.isOk() ? display : nullptr;
-    }
 };
 
 // ---------------------------------------------------------------------------
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index c4c2fa5..cf2593d 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -188,7 +188,10 @@
     void SetUp() {
         mComposer = ComposerService::getComposerService();
         mClient = new SurfaceComposerClient();
-        mDisplayToken = mClient->getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        // display 0 is picked as this test is not much display depedent
+        mDisplayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_NE(nullptr, mDisplayToken.get());
         Transaction t;
         t.setDisplayLayerStack(mDisplayToken, ui::DEFAULT_LAYER_STACK);
diff --git a/libs/gui/tests/DisplayedContentSampling_test.cpp b/libs/gui/tests/DisplayedContentSampling_test.cpp
index b647aab..0a2750a 100644
--- a/libs/gui/tests/DisplayedContentSampling_test.cpp
+++ b/libs/gui/tests/DisplayedContentSampling_test.cpp
@@ -32,7 +32,10 @@
     void SetUp() {
         mComposerClient = new SurfaceComposerClient;
         ASSERT_EQ(OK, mComposerClient->initCheck());
-        mDisplayToken = mComposerClient->getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        // display 0 is picked for now, can extend to support all displays if needed
+        mDisplayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_TRUE(mDisplayToken);
     }
 
diff --git a/libs/gui/tests/EndToEndNativeInputTest.cpp b/libs/gui/tests/EndToEndNativeInputTest.cpp
index 2637f59..3344e0b 100644
--- a/libs/gui/tests/EndToEndNativeInputTest.cpp
+++ b/libs/gui/tests/EndToEndNativeInputTest.cpp
@@ -360,8 +360,10 @@
     void SetUp() {
         mComposerClient = new SurfaceComposerClient;
         ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
-
-        const auto display = mComposerClient->getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        // display 0 is picked for now, can extend to support all displays if needed
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_NE(display, nullptr);
 
         ui::DisplayMode mode;
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index b9358e7..72d76ee 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -263,7 +263,10 @@
     sp<ANativeWindow> anw(mSurface);
 
     // Verify the screenshot works with no protected buffers.
-    const sp<IBinder> display = ComposerServiceAIDL::getInstance().getInternalDisplayToken();
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    ASSERT_FALSE(ids.empty());
+    // display 0 is picked for now, can extend to support all displays if needed
+    const sp<IBinder> display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     ASSERT_FALSE(display == nullptr);
 
     DisplayCaptureArgs captureArgs;
@@ -848,10 +851,6 @@
         return binder::Status::ok();
     }
 
-    binder::Status enableVSyncInjections(bool /*enable*/) override { return binder::Status::ok(); }
-
-    binder::Status injectVSync(int64_t /*when*/) override { return binder::Status::ok(); }
-
     binder::Status getLayerDebugInfo(std::vector<gui::LayerDebugInfo>* /*outLayers*/) override {
         return binder::Status::ok();
     }
@@ -974,11 +973,6 @@
         return binder::Status::ok();
     }
 
-    binder::Status addTransactionTraceListener(
-            const sp<gui::ITransactionTraceListener>& /*listener*/) override {
-        return binder::Status::ok();
-    }
-
     binder::Status getGpuContextPriority(int32_t* /*outPriority*/) override {
         return binder::Status::ok();
     }
diff --git a/libs/nativedisplay/ADisplay.cpp b/libs/nativedisplay/ADisplay.cpp
index 76b85d6..60328e4 100644
--- a/libs/nativedisplay/ADisplay.cpp
+++ b/libs/nativedisplay/ADisplay.cpp
@@ -136,6 +136,7 @@
     }
 
     std::vector<DisplayConfigImpl> modesPerDisplay[size];
+    ui::DisplayConnectionType displayConnectionTypes[size];
     int numModes = 0;
     for (int i = 0; i < size; ++i) {
         const sp<IBinder> token = SurfaceComposerClient::getPhysicalDisplayToken(ids[i]);
@@ -145,6 +146,7 @@
             status != OK) {
             return status;
         }
+        displayConnectionTypes[i] = staticInfo.connectionType;
 
         ui::DynamicDisplayInfo dynamicInfo;
         if (const status_t status =
@@ -168,8 +170,6 @@
         }
     }
 
-    const std::optional<PhysicalDisplayId> internalId =
-            SurfaceComposerClient::getInternalDisplayId();
     ui::Dataspace defaultDataspace;
     ui::PixelFormat defaultPixelFormat;
     ui::Dataspace wcgDataspace;
@@ -201,8 +201,9 @@
 
     for (size_t i = 0; i < size; ++i) {
         const PhysicalDisplayId id = ids[i];
-        const ADisplayType type = (internalId == id) ? ADisplayType::DISPLAY_TYPE_INTERNAL
-                                                     : ADisplayType::DISPLAY_TYPE_EXTERNAL;
+        const ADisplayType type = (displayConnectionTypes[i] == ui::DisplayConnectionType::Internal)
+                ? ADisplayType::DISPLAY_TYPE_INTERNAL
+                : ADisplayType::DISPLAY_TYPE_EXTERNAL;
         const std::vector<DisplayConfigImpl>& configs = modesPerDisplay[i];
         memcpy(configData, configs.data(), sizeof(DisplayConfigImpl) * configs.size());
 
diff --git a/libs/nativewindow/include/system/window.h b/libs/nativewindow/include/system/window.h
index 79f49e1..c7745e6 100644
--- a/libs/nativewindow/include/system/window.h
+++ b/libs/nativewindow/include/system/window.h
@@ -235,8 +235,8 @@
     NATIVE_WINDOW_ENABLE_FRAME_TIMESTAMPS         = 25,
     NATIVE_WINDOW_GET_COMPOSITOR_TIMING           = 26,
     NATIVE_WINDOW_GET_FRAME_TIMESTAMPS            = 27,
-    NATIVE_WINDOW_GET_WIDE_COLOR_SUPPORT          = 28,
-    NATIVE_WINDOW_GET_HDR_SUPPORT                 = 29,
+    /* 28, removed: NATIVE_WINDOW_GET_WIDE_COLOR_SUPPORT */
+    /* 29, removed: NATIVE_WINDOW_GET_HDR_SUPPORT */
     NATIVE_WINDOW_SET_USAGE64                     = ANATIVEWINDOW_PERFORM_SET_USAGE64,
     NATIVE_WINDOW_GET_CONSUMER_USAGE64            = 31,
     NATIVE_WINDOW_SET_BUFFERS_SMPTE2086_METADATA  = 32,
@@ -988,15 +988,34 @@
             outDequeueReadyTime, outReleaseTime);
 }
 
-static inline int native_window_get_wide_color_support(
-    struct ANativeWindow* window, bool* outSupport) {
-    return window->perform(window, NATIVE_WINDOW_GET_WIDE_COLOR_SUPPORT,
-            outSupport);
+/* deprecated. Always returns 0 and outSupport holds true. Don't call. */
+static inline int native_window_get_wide_color_support (
+    struct ANativeWindow* window __UNUSED, bool* outSupport) __deprecated;
+
+/*
+   Deprecated(b/242763577): to be removed, this method should not be used
+   Surface support should not be tied to the display
+   Return true since most displays should have this support
+*/
+static inline int native_window_get_wide_color_support (
+    struct ANativeWindow* window __UNUSED, bool* outSupport) {
+    *outSupport = true;
+    return 0;
 }
 
-static inline int native_window_get_hdr_support(struct ANativeWindow* window,
+/* deprecated. Always returns 0 and outSupport holds true. Don't call. */
+static inline int native_window_get_hdr_support(struct ANativeWindow* window __UNUSED,
+                                                bool* outSupport) __deprecated;
+
+/*
+   Deprecated(b/242763577): to be removed, this method should not be used
+   Surface support should not be tied to the display
+   Return true since most displays should have this support
+*/
+static inline int native_window_get_hdr_support(struct ANativeWindow* window __UNUSED,
                                                 bool* outSupport) {
-    return window->perform(window, NATIVE_WINDOW_GET_HDR_SUPPORT, outSupport);
+    *outSupport = true;
+    return 0;
 }
 
 static inline int native_window_get_consumer_usage(struct ANativeWindow* window,
diff --git a/libs/renderengine/benchmark/RenderEngineBench.cpp b/libs/renderengine/benchmark/RenderEngineBench.cpp
index 739f3fa..d44eb46 100644
--- a/libs/renderengine/benchmark/RenderEngineBench.cpp
+++ b/libs/renderengine/benchmark/RenderEngineBench.cpp
@@ -80,16 +80,26 @@
     std::once_flag once;
     std::call_once(once, []() {
         auto surfaceComposerClient = SurfaceComposerClient::getDefault();
-        auto displayToken = surfaceComposerClient->getInternalDisplayToken();
-        ui::DisplayMode displayMode;
-        if (surfaceComposerClient->getActiveDisplayMode(displayToken, &displayMode) < 0) {
-            LOG_ALWAYS_FATAL("Failed to get active display mode!");
+        auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        LOG_ALWAYS_FATAL_IF(ids.empty(), "Failed to get any display!");
+        ui::Size resolution = ui::kEmptySize;
+        // find the largest display resolution
+        for (auto id : ids) {
+            auto displayToken = surfaceComposerClient->getPhysicalDisplayToken(id);
+            ui::DisplayMode displayMode;
+            if (surfaceComposerClient->getActiveDisplayMode(displayToken, &displayMode) < 0) {
+                LOG_ALWAYS_FATAL("Failed to get active display mode!");
+            }
+            auto tw = displayMode.resolution.width;
+            auto th = displayMode.resolution.height;
+            LOG_ALWAYS_FATAL_IF(tw <= 0 || th <= 0, "Invalid display size!");
+            if (resolution.width * resolution.height <
+                displayMode.resolution.width * displayMode.resolution.height) {
+                resolution = displayMode.resolution;
+            }
         }
-        auto w = displayMode.resolution.width;
-        auto h = displayMode.resolution.height;
-        LOG_ALWAYS_FATAL_IF(w <= 0 || h <= 0, "Invalid display size!");
-        width = static_cast<uint32_t>(w);
-        height = static_cast<uint32_t>(h);
+        width = static_cast<uint32_t>(resolution.width);
+        height = static_cast<uint32_t>(resolution.height);
     });
     return std::pair<uint32_t, uint32_t>(width, height);
 }
diff --git a/opengl/tests/lib/WindowSurface.cpp b/opengl/tests/lib/WindowSurface.cpp
index fd4522e..e94b565 100644
--- a/opengl/tests/lib/WindowSurface.cpp
+++ b/opengl/tests/lib/WindowSurface.cpp
@@ -36,7 +36,14 @@
         return;
     }
 
-    const auto displayToken = SurfaceComposerClient::getInternalDisplayToken();
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    if (ids.empty()) {
+        fprintf(stderr, "Failed to get ID for any displays.\n");
+        return;
+    }
+
+    // display 0 is picked for now, can extend to support all displays if needed
+    const auto displayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     if (displayToken == nullptr) {
         fprintf(stderr, "ERROR: no display\n");
         return;
diff --git a/services/inputflinger/InputCommonConverter.cpp b/services/inputflinger/InputCommonConverter.cpp
index 8aee39f..23b6f57 100644
--- a/services/inputflinger/InputCommonConverter.cpp
+++ b/services/inputflinger/InputCommonConverter.cpp
@@ -263,6 +263,8 @@
 static_assert(static_cast<common::Axis>(AMOTION_EVENT_AXIS_GENERIC_14) == common::Axis::GENERIC_14);
 static_assert(static_cast<common::Axis>(AMOTION_EVENT_AXIS_GENERIC_15) == common::Axis::GENERIC_15);
 static_assert(static_cast<common::Axis>(AMOTION_EVENT_AXIS_GENERIC_16) == common::Axis::GENERIC_16);
+static_assert(static_cast<common::Axis>(AMOTION_EVENT_MAXIMUM_VALID_AXIS_VALUE) ==
+              static_cast<common::Axis>(AMOTION_EVENT_AXIS_GENERIC_16));
 
 static common::VideoFrame getHalVideoFrame(const TouchVideoFrame& frame) {
     common::VideoFrame out;
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index 42b8012..929bf18 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -146,12 +146,12 @@
         for (auto it = mAxes.begin(); it != mAxes.end(); /*increment it inside loop*/) {
             Axis& axis = it->second;
             if (axis.axisInfo.axis < 0) {
-                while (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16 &&
+                while (nextGenericAxisId <= AMOTION_EVENT_MAXIMUM_VALID_AXIS_VALUE &&
                        haveAxis(nextGenericAxisId)) {
                     nextGenericAxisId += 1;
                 }
 
-                if (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16) {
+                if (nextGenericAxisId <= AMOTION_EVENT_MAXIMUM_VALID_AXIS_VALUE) {
                     axis.axisInfo.axis = nextGenericAxisId;
                     nextGenericAxisId += 1;
                 } else {
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index 76500c5..fcbb98f 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -40,12 +40,10 @@
         "BlockingQueue_test.cpp",
         "EventHub_test.cpp",
         "FocusResolver_test.cpp",
-        "IInputFlingerQuery.aidl",
         "InputProcessor_test.cpp",
         "InputProcessorConverter_test.cpp",
         "InputDispatcher_test.cpp",
         "InputReader_test.cpp",
-        "InputFlingerService_test.cpp",
         "LatencyTracker_test.cpp",
         "PreferStylusOverTouch_test.cpp",
         "TestInputListener.cpp",
diff --git a/services/inputflinger/tests/IInputFlingerQuery.aidl b/services/inputflinger/tests/IInputFlingerQuery.aidl
deleted file mode 100644
index 5aeb21f..0000000
--- a/services/inputflinger/tests/IInputFlingerQuery.aidl
+++ /dev/null
@@ -1,27 +0,0 @@
-/**
- * Copyright (c) 2020, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import android.InputChannel;
-import android.gui.FocusRequest;
-import android.gui.WindowInfo;
-
-/** @hide */
-interface IInputFlingerQuery
-{
-    /* Test interfaces */
-    void getInputChannels(out InputChannel[] channels);
-    void resetInputManager();
-}
diff --git a/services/inputflinger/tests/InputFlingerService_test.cpp b/services/inputflinger/tests/InputFlingerService_test.cpp
deleted file mode 100644
index ca548be..0000000
--- a/services/inputflinger/tests/InputFlingerService_test.cpp
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <BnInputFlingerQuery.h>
-#include <IInputFlingerQuery.h>
-
-#include <android/os/BnInputFlinger.h>
-#include <android/os/IInputFlinger.h>
-
-#include <binder/Binder.h>
-#include <binder/IPCThreadState.h>
-#include <binder/IServiceManager.h>
-#include <binder/Parcel.h>
-#include <binder/ProcessState.h>
-
-#include <input/Input.h>
-#include <input/InputTransport.h>
-
-#include <gtest/gtest.h>
-#include <inttypes.h>
-#include <linux/uinput.h>
-#include <log/log.h>
-#include <chrono>
-#include <thread>
-#include <unordered_map>
-
-#define TAG "InputFlingerServiceTest"
-
-using android::gui::FocusRequest;
-using android::os::BnInputFlinger;
-using android::os::IInputFlinger;
-
-using std::chrono_literals::operator""ms;
-using std::chrono_literals::operator""s;
-
-namespace android {
-
-static const String16 kTestServiceName = String16("InputFlingerService");
-static const String16 kQueryServiceName = String16("InputFlingerQueryService");
-
-// --- InputFlingerServiceTest ---
-class InputFlingerServiceTest : public testing::Test {
-public:
-    void SetUp() override;
-    void TearDown() override;
-
-protected:
-    void InitializeInputFlinger();
-
-    sp<IInputFlinger> mService;
-    sp<IInputFlingerQuery> mQuery;
-
-private:
-    std::unique_ptr<InputChannel> mServerChannel, mClientChannel;
-    std::mutex mLock;
-};
-
-
-class TestInputManager : public BnInputFlinger {
-protected:
-    virtual ~TestInputManager(){};
-
-public:
-    TestInputManager(){};
-
-    binder::Status getInputChannels(std::vector<::android::InputChannel>* channels);
-
-    status_t dump(int fd, const Vector<String16>& args) override;
-
-    binder::Status createInputChannel(const std::string& name, InputChannel* outChannel) override;
-    binder::Status removeInputChannel(const sp<IBinder>& connectionToken) override;
-    binder::Status setFocusedWindow(const FocusRequest&) override;
-
-    void reset();
-
-private:
-    mutable Mutex mLock;
-    std::vector<std::shared_ptr<InputChannel>> mInputChannels;
-};
-
-class TestInputQuery : public BnInputFlingerQuery {
-public:
-    TestInputQuery(sp<android::TestInputManager> manager) : mManager(manager){};
-    binder::Status getInputChannels(std::vector<::android::InputChannel>* channels) override;
-    binder::Status resetInputManager() override;
-
-private:
-    sp<android::TestInputManager> mManager;
-};
-
-binder::Status TestInputQuery::getInputChannels(std::vector<::android::InputChannel>* channels) {
-    return mManager->getInputChannels(channels);
-}
-
-binder::Status TestInputQuery::resetInputManager() {
-    mManager->reset();
-    return binder::Status::ok();
-}
-
-binder::Status TestInputManager::createInputChannel(const std::string& name,
-                                                    InputChannel* outChannel) {
-    AutoMutex _l(mLock);
-    std::unique_ptr<InputChannel> serverChannel;
-    std::unique_ptr<InputChannel> clientChannel;
-    InputChannel::openInputChannelPair(name, serverChannel, clientChannel);
-
-    clientChannel->copyTo(*outChannel);
-
-    mInputChannels.emplace_back(std::move(serverChannel));
-
-    return binder::Status::ok();
-}
-
-binder::Status TestInputManager::removeInputChannel(const sp<IBinder>& connectionToken) {
-    AutoMutex _l(mLock);
-
-    auto it = std::find_if(mInputChannels.begin(), mInputChannels.end(),
-                           [&](std::shared_ptr<InputChannel>& c) {
-                               return c->getConnectionToken() == connectionToken;
-                           });
-    if (it != mInputChannels.end()) {
-        mInputChannels.erase(it);
-    }
-
-    return binder::Status::ok();
-}
-
-status_t TestInputManager::dump(int fd, const Vector<String16>& args) {
-    std::string dump;
-
-    dump += " InputFlinger dump\n";
-
-    ::write(fd, dump.c_str(), dump.size());
-    return NO_ERROR;
-}
-
-binder::Status TestInputManager::getInputChannels(std::vector<::android::InputChannel>* channels) {
-    channels->clear();
-    for (std::shared_ptr<InputChannel>& channel : mInputChannels) {
-        channels->push_back(*channel);
-    }
-    return binder::Status::ok();
-}
-
-binder::Status TestInputManager::setFocusedWindow(const FocusRequest& request) {
-    return binder::Status::ok();
-}
-
-void TestInputManager::reset() {
-    mInputChannels.clear();
-}
-
-void InputFlingerServiceTest::SetUp() {
-    InputChannel::openInputChannelPair("testchannels", mServerChannel, mClientChannel);
-    InitializeInputFlinger();
-}
-
-void InputFlingerServiceTest::TearDown() {
-    mQuery->resetInputManager();
-}
-
-void InputFlingerServiceTest::InitializeInputFlinger() {
-    sp<IBinder> input(defaultServiceManager()->waitForService(kTestServiceName));
-    ASSERT_TRUE(input != nullptr);
-    mService = interface_cast<IInputFlinger>(input);
-
-    input = defaultServiceManager()->waitForService(kQueryServiceName);
-    ASSERT_TRUE(input != nullptr);
-    mQuery = interface_cast<IInputFlingerQuery>(input);
-}
-
-/**
- *  Test InputFlinger service interface createInputChannel
- */
-TEST_F(InputFlingerServiceTest, CreateInputChannelReturnsUnblockedFd) {
-    // Test that the unblocked file descriptor flag is kept across processes over binder
-    // transactions.
-
-    InputChannel channel;
-    ASSERT_TRUE(mService->createInputChannel("testchannels", &channel).isOk());
-
-    const base::unique_fd& fd = channel.getFd();
-    ASSERT_TRUE(fd.ok());
-
-    const int result = fcntl(fd, F_GETFL);
-    EXPECT_NE(result, -1);
-    EXPECT_EQ(result & O_NONBLOCK, O_NONBLOCK);
-}
-
-TEST_F(InputFlingerServiceTest, CreateInputChannel) {
-    InputChannel channel;
-    ASSERT_TRUE(mService->createInputChannel("testchannels", &channel).isOk());
-
-    std::vector<::android::InputChannel> channels;
-    mQuery->getInputChannels(&channels);
-    ASSERT_EQ(channels.size(), 1UL);
-    EXPECT_EQ(channels[0].getConnectionToken(), channel.getConnectionToken());
-
-    mService->removeInputChannel(channel.getConnectionToken());
-    mQuery->getInputChannels(&channels);
-    EXPECT_EQ(channels.size(), 0UL);
-}
-
-} // namespace android
-
-int main(int argc, char** argv) {
-    pid_t forkPid = fork();
-
-    if (forkPid == 0) {
-        // Server process
-        android::sp<android::TestInputManager> manager =
-                android::sp<android::TestInputManager>::make();
-        android::sp<android::TestInputQuery> query =
-                android::sp<android::TestInputQuery>::make(manager);
-
-        android::defaultServiceManager()->addService(android::kTestServiceName, manager,
-                                                     false /*allowIsolated*/);
-        android::defaultServiceManager()->addService(android::kQueryServiceName, query,
-                                                     false /*allowIsolated*/);
-        android::ProcessState::self()->startThreadPool();
-        android::IPCThreadState::self()->joinThreadPool();
-    } else {
-        android::ProcessState::self()->startThreadPool();
-        ::testing::InitGoogleTest(&argc, argv);
-        int result = RUN_ALL_TESTS();
-        kill(forkPid, SIGKILL);
-        return result;
-    }
-    return 0;
-}
diff --git a/services/inputflinger/tests/PreferStylusOverTouch_test.cpp b/services/inputflinger/tests/PreferStylusOverTouch_test.cpp
index 8e2ab88..bd05360 100644
--- a/services/inputflinger/tests/PreferStylusOverTouch_test.cpp
+++ b/services/inputflinger/tests/PreferStylusOverTouch_test.cpp
@@ -33,14 +33,8 @@
 constexpr int32_t TOUCHSCREEN = AINPUT_SOURCE_TOUCHSCREEN;
 constexpr int32_t STYLUS = AINPUT_SOURCE_STYLUS;
 
-struct PointerData {
-    float x;
-    float y;
-};
-
 static NotifyMotionArgs generateMotionArgs(nsecs_t downTime, nsecs_t eventTime, int32_t action,
-                                           const std::vector<PointerData>& points,
-                                           uint32_t source) {
+                                           const std::vector<Point>& points, uint32_t source) {
     size_t pointerCount = points.size();
     if (action == DOWN || action == UP) {
         EXPECT_EQ(1U, pointerCount) << "Actions DOWN and UP can only contain a single pointer";
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index b911ae7..8a76d7c 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -84,7 +84,6 @@
         "libserviceutils",
         "libshaders",
         "libtonemap",
-        "libtrace_proto",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
@@ -189,11 +188,11 @@
         "StartPropertySetThread.cpp",
         "SurfaceFlinger.cpp",
         "SurfaceFlingerDefaultFactory.cpp",
-        "SurfaceInterceptor.cpp",
         "Tracing/LayerTracing.cpp",
         "Tracing/TransactionTracing.cpp",
         "Tracing/TransactionProtoParser.cpp",
         "TransactionCallbackInvoker.cpp",
+        "TransactionHandler.cpp",
         "TunnelModeEnabledReporter.cpp",
     ],
 }
@@ -224,7 +223,6 @@
     ],
     static_libs: [
         "libserviceutils",
-        "libtrace_proto",
     ],
 }
 
diff --git a/services/surfaceflinger/Client.cpp b/services/surfaceflinger/Client.cpp
index 3685bb4..30b8759 100644
--- a/services/surfaceflinger/Client.cpp
+++ b/services/surfaceflinger/Client.cpp
@@ -81,17 +81,9 @@
                                      gui::CreateSurfaceResult* outResult) {
     // We rely on createLayer to check permissions.
     sp<IBinder> handle;
-    int32_t layerId;
-    uint32_t transformHint;
     LayerCreationArgs args(mFlinger.get(), sp<Client>::fromExisting(this), name.c_str(),
                            static_cast<uint32_t>(flags), std::move(metadata));
-    const status_t status =
-            mFlinger->createLayer(args, &handle, parent, &layerId, nullptr, &transformHint);
-    if (status == NO_ERROR) {
-        outResult->handle = handle;
-        outResult->layerId = layerId;
-        outResult->transformHint = static_cast<int32_t>(transformHint);
-    }
+    const status_t status = mFlinger->createLayer(args, parent, *outResult);
     return binderStatusFromStatusT(status);
 }
 
@@ -134,31 +126,21 @@
 }
 
 binder::Status Client::mirrorSurface(const sp<IBinder>& mirrorFromHandle,
-                                     gui::MirrorSurfaceResult* outResult) {
+                                     gui::CreateSurfaceResult* outResult) {
     sp<IBinder> handle;
-    int32_t layerId;
     LayerCreationArgs args(mFlinger.get(), sp<Client>::fromExisting(this), "MirrorRoot",
                            0 /* flags */, gui::LayerMetadata());
-    status_t status = mFlinger->mirrorLayer(args, mirrorFromHandle, &handle, &layerId);
-    if (status == NO_ERROR) {
-        outResult->handle = handle;
-        outResult->layerId = layerId;
-    }
+    status_t status = mFlinger->mirrorLayer(args, mirrorFromHandle, *outResult);
     return binderStatusFromStatusT(status);
 }
 
-binder::Status Client::mirrorDisplay(int64_t displayId, gui::MirrorSurfaceResult* outResult) {
+binder::Status Client::mirrorDisplay(int64_t displayId, gui::CreateSurfaceResult* outResult) {
     sp<IBinder> handle;
-    int32_t layerId;
     LayerCreationArgs args(mFlinger.get(), sp<Client>::fromExisting(this),
                            "MirrorRoot-" + std::to_string(displayId), 0 /* flags */,
                            gui::LayerMetadata());
     std::optional<DisplayId> id = DisplayId::fromValue(static_cast<uint64_t>(displayId));
-    status_t status = mFlinger->mirrorDisplay(*id, args, &handle, &layerId);
-    if (status == NO_ERROR) {
-        outResult->handle = handle;
-        outResult->layerId = layerId;
-    }
+    status_t status = mFlinger->mirrorDisplay(*id, args, *outResult);
     return binderStatusFromStatusT(status);
 }
 
diff --git a/services/surfaceflinger/Client.h b/services/surfaceflinger/Client.h
index 4e59dfd..02079a3 100644
--- a/services/surfaceflinger/Client.h
+++ b/services/surfaceflinger/Client.h
@@ -57,9 +57,9 @@
                                       gui::FrameStats* outStats) override;
 
     binder::Status mirrorSurface(const sp<IBinder>& mirrorFromHandle,
-                                 gui::MirrorSurfaceResult* outResult) override;
+                                 gui::CreateSurfaceResult* outResult) override;
 
-    binder::Status mirrorDisplay(int64_t displayId, gui::MirrorSurfaceResult* outResult) override;
+    binder::Status mirrorDisplay(int64_t displayId, gui::CreateSurfaceResult* outResult) override;
 
     // constant
     sp<SurfaceFlinger> mFlinger;
diff --git a/services/surfaceflinger/CompositionEngine/Android.bp b/services/surfaceflinger/CompositionEngine/Android.bp
index b5d2ad0..0ae8bf9 100644
--- a/services/surfaceflinger/CompositionEngine/Android.bp
+++ b/services/surfaceflinger/CompositionEngine/Android.bp
@@ -42,7 +42,6 @@
         "libmath",
         "librenderengine",
         "libtonemap",
-        "libtrace_proto",
         "libaidlcommonsupport",
         "libprocessgroup",
         "libcgrouprc",
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index 79dcd15..3651231 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -264,17 +264,21 @@
     }
 
     std::string str;
+    // Use other thread to read pipe to prevent
+    // pipe is full, making HWC be blocked in writing.
+    std::thread t([&]() {
+        base::ReadFdToString(pipefds[0], &str);
+    });
     const auto status = mAidlComposer->dump(pipefds[1], /*args*/ nullptr, /*numArgs*/ 0);
     // Close the write-end of the pipe to make sure that when reading from the
     // read-end we will get eof instead of blocking forever
     close(pipefds[1]);
 
-    if (status == STATUS_OK) {
-        base::ReadFdToString(pipefds[0], &str);
-    } else {
+    if (status != STATUS_OK) {
         ALOGE("dumpDebugInfo: dump failed: %d", status);
     }
 
+    t.join();
     close(pipefds[0]);
     return str;
 }
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 4ff86e5..8ace812 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -77,10 +77,6 @@
 class LayerDebugInfo;
 }
 
-namespace impl {
-class SurfaceInterceptor;
-}
-
 namespace frametimeline {
 class SurfaceFrame;
 } // namespace frametimeline
@@ -881,7 +877,9 @@
 
     bool mPendingHWCDestroy{false};
 
-    bool backpressureEnabled() { return mDrawingState.flags & layer_state_t::eEnableBackpressure; }
+    bool backpressureEnabled() const {
+        return mDrawingState.flags & layer_state_t::eEnableBackpressure;
+    }
 
     bool setStretchEffect(const StretchEffect& effect);
     StretchEffect getStretchEffect() const;
@@ -914,8 +912,6 @@
                                         std::unordered_set<Layer*>& visited);
 
 protected:
-    friend class impl::SurfaceInterceptor;
-
     // For unit tests
     friend class TestableSurfaceFlinger;
     friend class FpsReporterTest;
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index d3f53c1..a6cd47b 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -237,16 +237,13 @@
 
 EventThread::EventThread(std::unique_ptr<VSyncSource> vsyncSource,
                          android::frametimeline::TokenManager* tokenManager,
-                         InterceptVSyncsCallback interceptVSyncsCallback,
                          ThrottleVsyncCallback throttleVsyncCallback,
                          GetVsyncPeriodFunction getVsyncPeriodFunction)
       : mVSyncSource(std::move(vsyncSource)),
         mTokenManager(tokenManager),
-        mInterceptVSyncsCallback(std::move(interceptVSyncsCallback)),
         mThrottleVsyncCallback(std::move(throttleVsyncCallback)),
         mGetVsyncPeriodFunction(std::move(getVsyncPeriodFunction)),
         mThreadName(mVSyncSource->getName()) {
-
     LOG_ALWAYS_FATAL_IF(getVsyncPeriodFunction == nullptr,
             "getVsyncPeriodFunction must not be null");
 
@@ -443,21 +440,13 @@
             event = mPendingEvents.front();
             mPendingEvents.pop_front();
 
-            switch (event->header.type) {
-                case DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG:
-                    if (event->hotplug.connected && !mVSyncState) {
-                        mVSyncState.emplace(event->header.displayId);
-                    } else if (!event->hotplug.connected && mVSyncState &&
-                               mVSyncState->displayId == event->header.displayId) {
-                        mVSyncState.reset();
-                    }
-                    break;
-
-                case DisplayEventReceiver::DISPLAY_EVENT_VSYNC:
-                    if (mInterceptVSyncsCallback) {
-                        mInterceptVSyncsCallback(event->header.timestamp);
-                    }
-                    break;
+            if (event->header.type == DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG) {
+                if (event->hotplug.connected && !mVSyncState) {
+                    mVSyncState.emplace(event->header.displayId);
+                } else if (!event->hotplug.connected && mVSyncState &&
+                           mVSyncState->displayId == event->header.displayId) {
+                    mVSyncState.reset();
+                }
             }
         }
 
diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index d85d140..7a5a348 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h
@@ -161,12 +161,11 @@
 
 class EventThread : public android::EventThread, private VSyncSource::Callback {
 public:
-    using InterceptVSyncsCallback = std::function<void(nsecs_t)>;
     using ThrottleVsyncCallback = std::function<bool(nsecs_t, uid_t)>;
     using GetVsyncPeriodFunction = std::function<nsecs_t(uid_t)>;
 
-    EventThread(std::unique_ptr<VSyncSource>, frametimeline::TokenManager*, InterceptVSyncsCallback,
-                ThrottleVsyncCallback, GetVsyncPeriodFunction);
+    EventThread(std::unique_ptr<VSyncSource>, frametimeline::TokenManager*, ThrottleVsyncCallback,
+                GetVsyncPeriodFunction);
     ~EventThread();
 
     sp<EventThreadConnection> createEventConnection(
@@ -225,7 +224,6 @@
     const std::unique_ptr<VSyncSource> mVSyncSource GUARDED_BY(mMutex);
     frametimeline::TokenManager* const mTokenManager;
 
-    const InterceptVSyncsCallback mInterceptVSyncsCallback;
     const ThrottleVsyncCallback mThrottleVsyncCallback;
     const GetVsyncPeriodFunction mGetVsyncPeriodFunction;
     const char* const mThreadName;
diff --git a/services/surfaceflinger/Scheduler/InjectVSyncSource.h b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
deleted file mode 100644
index 760a4ee..0000000
--- a/services/surfaceflinger/Scheduler/InjectVSyncSource.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <mutex>
-
-#include "EventThread.h"
-
-namespace android {
-
-/**
- * VSync signals used during SurfaceFlinger trace playback (traces we captured
- * with SurfaceInterceptor).
- */
-class InjectVSyncSource final : public VSyncSource {
-public:
-    ~InjectVSyncSource() override = default;
-
-    void setCallback(VSyncSource::Callback* callback) override {
-        std::lock_guard<std::mutex> lock(mCallbackMutex);
-        mCallback = callback;
-    }
-
-    void onInjectSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp,
-                           nsecs_t deadlineTimestamp) {
-        std::lock_guard<std::mutex> lock(mCallbackMutex);
-        if (mCallback) {
-            mCallback->onVSyncEvent(when, {expectedVSyncTimestamp, deadlineTimestamp});
-        }
-    }
-
-    const char* getName() const override { return "inject"; }
-    void setVSyncEnabled(bool) override {}
-    void setDuration(std::chrono::nanoseconds, std::chrono::nanoseconds) override {}
-    VSyncData getLatestVSyncData() const override { return {}; }
-    void dump(std::string&) const override {}
-
-private:
-    std::mutex mCallbackMutex;
-    VSyncSource::Callback* mCallback GUARDED_BY(mCallbackMutex) = nullptr;
-};
-
-} // namespace android
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index e4e65b4..ae10ff4 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -57,37 +57,6 @@
         mLooper(sp<Looper>::make(kAllowNonCallbacks)),
         mHandler(std::move(handler)) {}
 
-// TODO(b/169865816): refactor VSyncInjections to use MessageQueue directly
-// and remove the EventThread from MessageQueue
-void MessageQueue::setInjector(sp<EventThreadConnection> connection) {
-    auto& tube = mInjector.tube;
-
-    if (const int fd = tube.getFd(); fd >= 0) {
-        mLooper->removeFd(fd);
-    }
-
-    if (connection) {
-        // The EventThreadConnection is retained when disabling injection, so avoid subsequently
-        // stealing invalid FDs. Note that the stolen FDs are kept open.
-        if (tube.getFd() < 0) {
-            connection->stealReceiveChannel(&tube);
-        } else {
-            ALOGW("Recycling channel for VSYNC injection.");
-        }
-
-        mLooper->addFd(
-                tube.getFd(), 0, Looper::EVENT_INPUT,
-                [](int, int, void* data) {
-                    reinterpret_cast<MessageQueue*>(data)->injectorCallback();
-                    return 1; // Keep registration.
-                },
-                this);
-    }
-
-    std::lock_guard lock(mInjector.mutex);
-    mInjector.connection = std::move(connection);
-}
-
 void MessageQueue::vsyncCallback(nsecs_t vsyncTime, nsecs_t targetWakeupTime, nsecs_t readyTime) {
     ATRACE_CALL();
     // Trace VSYNC-sf
@@ -174,15 +143,6 @@
 void MessageQueue::scheduleFrame() {
     ATRACE_CALL();
 
-    {
-        std::lock_guard lock(mInjector.mutex);
-        if (CC_UNLIKELY(mInjector.connection)) {
-            ALOGD("%s while injecting VSYNC", __func__);
-            mInjector.connection->requestNextVsync();
-            return;
-        }
-    }
-
     std::lock_guard lock(mVsync.mutex);
     mVsync.scheduledFrameTime =
             mVsync.registration->schedule({.workDuration = mVsync.workDuration.get().count(),
@@ -190,22 +150,6 @@
                                            .earliestVsync = mVsync.lastCallbackTime.ns()});
 }
 
-void MessageQueue::injectorCallback() {
-    ssize_t n;
-    DisplayEventReceiver::Event buffer[8];
-    while ((n = DisplayEventReceiver::getEvents(&mInjector.tube, buffer, 8)) > 0) {
-        for (int i = 0; i < n; i++) {
-            if (buffer[i].header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC) {
-                auto& vsync = buffer[i].vsync.vsyncData;
-                mHandler->dispatchFrame(VsyncId{vsync.preferredVsyncId()},
-                                        TimePoint::fromNs(
-                                                vsync.preferredExpectedPresentationTime()));
-                break;
-            }
-        }
-    }
-}
-
 auto MessageQueue::getScheduledFrameTime() const -> std::optional<Clock::time_point> {
     if (mHandler->isFramePending()) {
         return Clock::now();
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.h b/services/surfaceflinger/Scheduler/MessageQueue.h
index 899233a..04de492 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.h
+++ b/services/surfaceflinger/Scheduler/MessageQueue.h
@@ -76,7 +76,6 @@
     virtual void initVsync(scheduler::VSyncDispatch&, frametimeline::TokenManager&,
                            std::chrono::nanoseconds workDuration) = 0;
     virtual void setDuration(std::chrono::nanoseconds workDuration) = 0;
-    virtual void setInjector(sp<EventThreadConnection>) = 0;
     virtual void waitMessage() = 0;
     virtual void postMessage(sp<MessageHandler>&&) = 0;
     virtual void scheduleConfigure() = 0;
@@ -132,16 +131,7 @@
         TracedOrdinal<int> value = {"VSYNC-sf", 0};
     };
 
-    struct Injector {
-        gui::BitTube tube;
-        std::mutex mutex;
-        sp<EventThreadConnection> connection GUARDED_BY(mutex);
-    };
-
     Vsync mVsync;
-    Injector mInjector;
-
-    void injectorCallback();
 
 public:
     explicit MessageQueue(ICompositor&);
@@ -149,7 +139,6 @@
     void initVsync(scheduler::VSyncDispatch&, frametimeline::TokenManager&,
                    std::chrono::nanoseconds workDuration) override;
     void setDuration(std::chrono::nanoseconds workDuration) override;
-    void setInjector(sp<EventThreadConnection>) override;
 
     void waitMessage() override;
     void postMessage(sp<MessageHandler>&&) override;
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
index c10b817..30483a2 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
@@ -314,7 +314,8 @@
     // Keep the display at max refresh rate for the duration of powering on the display.
     if (signals.powerOnImminent) {
         ALOGV("Power On Imminent");
-        return {getRefreshRatesByPolicyLocked(activeMode.getGroup(), RefreshRateOrder::Descending),
+        return {getRefreshRatesByPolicyLocked(activeMode.getGroup(), RefreshRateOrder::Descending,
+                                              /*preferredDisplayModeOpt*/ std::nullopt),
                 GlobalSignals{.powerOnImminent = true}};
     }
 
@@ -374,7 +375,8 @@
     // selected a refresh rate to see if we should apply touch boost.
     if (signals.touch && !hasExplicitVoteLayers) {
         ALOGV("Touch Boost");
-        return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending),
+        return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending,
+                                              /*preferredDisplayModeOpt*/ std::nullopt),
                 GlobalSignals{.touch = true}};
     }
 
@@ -386,20 +388,23 @@
 
     if (!signals.touch && signals.idle && !(primaryRangeIsSingleRate && hasExplicitVoteLayers)) {
         ALOGV("Idle");
-        return {getRefreshRatesByPolicyLocked(activeMode.getGroup(), RefreshRateOrder::Ascending),
+        return {getRefreshRatesByPolicyLocked(activeMode.getGroup(), RefreshRateOrder::Ascending,
+                                              /*preferredDisplayModeOpt*/ std::nullopt),
                 GlobalSignals{.idle = true}};
     }
 
     if (layers.empty() || noVoteLayers == layers.size()) {
         ALOGV("No layers with votes");
-        return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending),
+        return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending,
+                                              /*preferredDisplayModeOpt*/ std::nullopt),
                 kNoSignals};
     }
 
     // Only if all layers want Min we should return Min
     if (noVoteLayers + minVoteLayers == layers.size()) {
         ALOGV("All layers Min");
-        return {getRefreshRatesByPolicyLocked(activeMode.getGroup(), RefreshRateOrder::Ascending),
+        return {getRefreshRatesByPolicyLocked(activeMode.getGroup(), RefreshRateOrder::Ascending,
+                                              /*preferredDisplayModeOpt*/ std::nullopt),
                 kNoSignals};
     }
 
@@ -560,13 +565,17 @@
                        return RefreshRateRanking{score.modeIt->second, score.overallScore};
                    });
 
+    const bool noLayerScore = std::all_of(scores.begin(), scores.end(), [](RefreshRateScore score) {
+        return score.overallScore == 0;
+    });
+
     if (primaryRangeIsSingleRate) {
         // If we never scored any layers, then choose the rate from the primary
         // range instead of picking a random score from the app range.
-        if (std::all_of(scores.begin(), scores.end(),
-                        [](RefreshRateScore score) { return score.overallScore == 0; })) {
+        if (noLayerScore) {
             ALOGV("Layers not scored");
-            return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending),
+            return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending,
+                                                  /*preferredDisplayModeOpt*/ std::nullopt),
                     kNoSignals};
         } else {
             return {rankedRefreshRates, kNoSignals};
@@ -588,7 +597,8 @@
     }();
 
     const auto& touchRefreshRates =
-            getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending);
+            getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Descending,
+                                          /*preferredDisplayModeOpt*/ std::nullopt);
     using fps_approx_ops::operator<;
 
     if (signals.touch && explicitDefaultVoteLayers == 0 && touchBoostForExplicitExact &&
@@ -598,6 +608,15 @@
         return {touchRefreshRates, GlobalSignals{.touch = true}};
     }
 
+    // If we never scored any layers, and we don't favor high refresh rates, prefer to stay with the
+    // current config
+    if (noLayerScore && refreshRateOrder == RefreshRateOrder::Ascending) {
+        const auto preferredDisplayMode = activeMode.getId();
+        return {getRefreshRatesByPolicyLocked(anchorGroup, RefreshRateOrder::Ascending,
+                                              preferredDisplayMode),
+                kNoSignals};
+    }
+
     return {rankedRefreshRates, kNoSignals};
 }
 
@@ -765,15 +784,29 @@
 }
 
 std::vector<RefreshRateRanking> RefreshRateConfigs::getRefreshRatesByPolicyLocked(
-        std::optional<int> anchorGroupOpt, RefreshRateOrder refreshRateOrder) const {
-    std::vector<RefreshRateRanking> rankings;
+        std::optional<int> anchorGroupOpt, RefreshRateOrder refreshRateOrder,
+        std::optional<DisplayModeId> preferredDisplayModeOpt) const {
+    std::deque<RefreshRateRanking> rankings;
     const auto makeRanking = [&](const DisplayModeIterator it) REQUIRES(mLock) {
         const auto& mode = it->second;
-        const bool inverseScore = (refreshRateOrder == RefreshRateOrder::Ascending);
-        const float score = calculateRefreshRateScoreForFps(mode->getFps());
-        if (!anchorGroupOpt || mode->getGroup() == anchorGroupOpt) {
-            rankings.push_back(RefreshRateRanking{mode, inverseScore ? 1.0f / score : score});
+        if (anchorGroupOpt && mode->getGroup() != anchorGroupOpt) {
+            return;
         }
+
+        float score = calculateRefreshRateScoreForFps(mode->getFps());
+        const bool inverseScore = (refreshRateOrder == RefreshRateOrder::Ascending);
+        if (inverseScore) {
+            score = 1.0f / score;
+        }
+        if (preferredDisplayModeOpt) {
+            if (*preferredDisplayModeOpt == mode->getId()) {
+                rankings.push_front(RefreshRateRanking{mode, /*score*/ 1.0f});
+                return;
+            }
+            constexpr float kNonPreferredModePenalty = 0.95f;
+            score *= kNonPreferredModePenalty;
+        }
+        rankings.push_back(RefreshRateRanking{mode, score});
     };
 
     if (refreshRateOrder == RefreshRateOrder::Ascending) {
@@ -783,14 +816,15 @@
     }
 
     if (!rankings.empty() || !anchorGroupOpt) {
-        return rankings;
+        return {rankings.begin(), rankings.end()};
     }
 
     ALOGW("Can't find %s refresh rate by policy with the same mode group"
           " as the mode group %d",
           refreshRateOrder == RefreshRateOrder::Ascending ? "min" : "max", anchorGroupOpt.value());
 
-    return getRefreshRatesByPolicyLocked(/*anchorGroupOpt*/ std::nullopt, refreshRateOrder);
+    return getRefreshRatesByPolicyLocked(/*anchorGroupOpt*/ std::nullopt, refreshRateOrder,
+                                         preferredDisplayModeOpt);
 }
 
 DisplayModePtr RefreshRateConfigs::getActiveModePtr() const {
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
index 2c2e34a..7219584 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
@@ -375,9 +375,9 @@
 
     // Returns the rankings in RefreshRateOrder. May change at runtime.
     // Only uses the primary range, not the app request range.
-    std::vector<RefreshRateRanking> getRefreshRatesByPolicyLocked(std::optional<int> anchorGroupOpt,
-                                                                  RefreshRateOrder) const
-            REQUIRES(mLock);
+    std::vector<RefreshRateRanking> getRefreshRatesByPolicyLocked(
+            std::optional<int> anchorGroupOpt, RefreshRateOrder,
+            std::optional<DisplayModeId> preferredDisplayModeOpt) const REQUIRES(mLock);
 
     const Policy* getCurrentPolicyLocked() const REQUIRES(mLock);
     bool isPolicyValidLocked(const Policy& policy) const REQUIRES(mLock);
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 6d68bac..037ed8f 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -43,7 +43,6 @@
 #include "DispSyncSource.h"
 #include "EventThread.h"
 #include "FrameRateOverrideMappings.h"
-#include "InjectVSyncSource.h"
 #include "OneShotTimer.h"
 #include "SurfaceFlingerProperties.h"
 #include "VSyncPredictor.h"
@@ -57,6 +56,39 @@
         }                                                            \
     } while (false)
 
+namespace {
+
+using android::Fps;
+using android::FpsApproxEqual;
+using android::FpsHash;
+using android::scheduler::AggregatedFpsScore;
+using android::scheduler::RefreshRateRankingsAndSignals;
+
+// Returns the aggregated score per Fps for the RefreshRateRankingsAndSignals sourced.
+auto getAggregatedScoresPerFps(
+        const std::vector<RefreshRateRankingsAndSignals>& refreshRateRankingsAndSignalsPerDisplay)
+        -> std::unordered_map<Fps, AggregatedFpsScore, FpsHash, FpsApproxEqual> {
+    std::unordered_map<Fps, AggregatedFpsScore, FpsHash, FpsApproxEqual> aggregatedScoresPerFps;
+
+    for (const auto& refreshRateRankingsAndSignal : refreshRateRankingsAndSignalsPerDisplay) {
+        const auto& refreshRateRankings = refreshRateRankingsAndSignal.refreshRateRankings;
+
+        std::for_each(refreshRateRankings.begin(), refreshRateRankings.end(), [&](const auto& it) {
+            const auto [score, result] =
+                    aggregatedScoresPerFps.try_emplace(it.displayModePtr->getFps(),
+                                                       AggregatedFpsScore{it.score,
+                                                                          /* numDisplays */ 1});
+            if (!result) { // update
+                score->second.totalScore += it.score;
+                score->second.numDisplays++;
+            }
+        });
+    }
+    return aggregatedScoresPerFps;
+}
+
+} // namespace
+
 namespace android::scheduler {
 
 Scheduler::Scheduler(ICompositor& compositor, ISchedulerCallback& callback, FeatureFlags features)
@@ -198,15 +230,14 @@
     };
 }
 
-ConnectionHandle Scheduler::createConnection(
-        const char* connectionName, frametimeline::TokenManager* tokenManager,
-        std::chrono::nanoseconds workDuration, std::chrono::nanoseconds readyDuration,
-        impl::EventThread::InterceptVSyncsCallback interceptCallback) {
+ConnectionHandle Scheduler::createConnection(const char* connectionName,
+                                             frametimeline::TokenManager* tokenManager,
+                                             std::chrono::nanoseconds workDuration,
+                                             std::chrono::nanoseconds readyDuration) {
     auto vsyncSource = makePrimaryDispSyncSource(connectionName, workDuration, readyDuration);
     auto throttleVsync = makeThrottleVsyncCallback();
     auto getVsyncPeriod = makeGetVsyncPeriodFunction();
     auto eventThread = std::make_unique<impl::EventThread>(std::move(vsyncSource), tokenManager,
-                                                           std::move(interceptCallback),
                                                            std::move(throttleVsync),
                                                            std::move(getVsyncPeriod));
     return createConnection(std::move(eventThread));
@@ -371,44 +402,6 @@
     thread->setDuration(workDuration, readyDuration);
 }
 
-ConnectionHandle Scheduler::enableVSyncInjection(bool enable) {
-    if (mInjectVSyncs == enable) {
-        return {};
-    }
-
-    ALOGV("%s VSYNC injection", enable ? "Enabling" : "Disabling");
-
-    if (!mInjectorConnectionHandle) {
-        auto vsyncSource = std::make_unique<InjectVSyncSource>();
-        mVSyncInjector = vsyncSource.get();
-
-        auto eventThread =
-                std::make_unique<impl::EventThread>(std::move(vsyncSource),
-                                                    /*tokenManager=*/nullptr,
-                                                    impl::EventThread::InterceptVSyncsCallback(),
-                                                    impl::EventThread::ThrottleVsyncCallback(),
-                                                    impl::EventThread::GetVsyncPeriodFunction());
-
-        // EventThread does not dispatch VSYNC unless the display is connected and powered on.
-        eventThread->onHotplugReceived(PhysicalDisplayId::fromPort(0), true);
-        eventThread->onScreenAcquired();
-
-        mInjectorConnectionHandle = createConnection(std::move(eventThread));
-    }
-
-    mInjectVSyncs = enable;
-    return mInjectorConnectionHandle;
-}
-
-bool Scheduler::injectVSync(nsecs_t when, nsecs_t expectedVSyncTime, nsecs_t deadlineTimestamp) {
-    if (!mInjectVSyncs || !mVSyncInjector) {
-        return false;
-    }
-
-    mVSyncInjector->onInjectSyncEvent(when, expectedVSyncTime, deadlineTimestamp);
-    return true;
-}
-
 void Scheduler::enableHardwareVsync() {
     std::lock_guard<std::mutex> lock(mHWVsyncLock);
     if (!mPrimaryHWVsyncEnabled && mHWVsyncAvailable) {
@@ -662,6 +655,7 @@
 auto Scheduler::applyPolicy(S Policy::*statePtr, T&& newState) -> GlobalSignals {
     DisplayModePtr newMode;
     GlobalSignals consideredSignals;
+    std::vector<DisplayModeConfig> displayModeConfigs;
 
     bool refreshRateChanged = false;
     bool frameRateOverridesChanged;
@@ -674,9 +668,27 @@
         if (currentState == newState) return {};
         currentState = std::forward<T>(newState);
 
-        const auto [rankings, signals] = getRankedDisplayModes();
-        newMode = rankings.front().displayModePtr;
-        consideredSignals = signals;
+        displayModeConfigs = getBestDisplayModeConfigs();
+
+        // mPolicy holds the current mode, using the current mode we find out
+        // what display is currently being tracked through the policy and
+        // then find the DisplayModeConfig for that display. So that
+        // later we check if the policy mode has changed for the same display in policy.
+        // If mPolicy mode isn't available then we take the first display from the best display
+        // modes as the candidate for policy changes and frame rate overrides.
+        // TODO(b/240743786) Update the single display based assumptions and make mode changes
+        // and mPolicy per display.
+        const DisplayModeConfig& displayModeConfigForCurrentPolicy = mPolicy.mode
+                ? *std::find_if(displayModeConfigs.begin(), displayModeConfigs.end(),
+                                [&](const auto& displayModeConfig) REQUIRES(mPolicyLock) {
+                                    return displayModeConfig.displayModePtr
+                                                   ->getPhysicalDisplayId() ==
+                                            mPolicy.mode->getPhysicalDisplayId();
+                                })
+                : displayModeConfigs.front();
+
+        newMode = displayModeConfigForCurrentPolicy.displayModePtr;
+        consideredSignals = displayModeConfigForCurrentPolicy.signals;
         frameRateOverridesChanged = updateFrameRateOverrides(consideredSignals, newMode->getFps());
 
         if (mPolicy.mode == newMode) {
@@ -691,9 +703,7 @@
         }
     }
     if (refreshRateChanged) {
-        mSchedulerCallback.requestDisplayMode(std::move(newMode),
-                                              consideredSignals.idle ? DisplayModeEvent::None
-                                                                     : DisplayModeEvent::Changed);
+        mSchedulerCallback.requestDisplayModes(std::move(displayModeConfigs));
     }
     if (frameRateOverridesChanged) {
         mSchedulerCallback.triggerOnFrameRateOverridesChanged();
@@ -701,12 +711,68 @@
     return consideredSignals;
 }
 
-auto Scheduler::getRankedDisplayModes()
-        -> std::pair<std::vector<RefreshRateRanking>, GlobalSignals> {
+void Scheduler::registerDisplay(const sp<const DisplayDevice>& display) {
+    const bool ok = mDisplays.try_emplace(display->getPhysicalId(), display).second;
+    ALOGE_IF(!ok, "Duplicate display registered");
+}
+
+void Scheduler::unregisterDisplay(PhysicalDisplayId displayId) {
+    mDisplays.erase(displayId);
+}
+
+std::vector<DisplayModeConfig> Scheduler::getBestDisplayModeConfigs() const {
     ATRACE_CALL();
 
-    const auto configs = holdRefreshRateConfigs();
+    std::vector<RefreshRateRankingsAndSignals> refreshRateRankingsAndSignalsPerDisplay;
+    refreshRateRankingsAndSignalsPerDisplay.reserve(mDisplays.size());
 
+    const auto displayModeSelectionParams = getDisplayModeSelectionParams();
+
+    std::for_each(mDisplays.begin(), mDisplays.end(), [&](const auto& display) {
+        const auto& [refreshRateRankings, globalSignals] =
+                display.second->holdRefreshRateConfigs()
+                        ->getRankedRefreshRates(displayModeSelectionParams.layerRequirements,
+                                                displayModeSelectionParams.globalSignals);
+        refreshRateRankingsAndSignalsPerDisplay.emplace_back(
+                RefreshRateRankingsAndSignals{refreshRateRankings, globalSignals});
+    });
+
+    // FPS and their Aggregated score.
+    std::unordered_map<Fps, AggregatedFpsScore, FpsHash, FpsApproxEqual> aggregatedScoresPerFps =
+            getAggregatedScoresPerFps(refreshRateRankingsAndSignalsPerDisplay);
+
+    Fps chosenFps = std::max_element(aggregatedScoresPerFps.begin(), aggregatedScoresPerFps.end(),
+                                     [](const auto& max, const auto& current) {
+                                         return max.second.totalScore <= current.second.totalScore;
+                                     })
+                            ->first;
+
+    return getDisplayModeConfigsForTheChosenFps(chosenFps, refreshRateRankingsAndSignalsPerDisplay);
+}
+
+std::vector<DisplayModeConfig> Scheduler::getDisplayModeConfigsForTheChosenFps(
+        Fps chosenFps,
+        const std::vector<RefreshRateRankingsAndSignals>& refreshRateRankingsAndSignalsPerDisplay)
+        const {
+    std::vector<DisplayModeConfig> displayModeConfigs;
+    displayModeConfigs.reserve(mDisplays.size());
+    using fps_approx_ops::operator==;
+    std::for_each(refreshRateRankingsAndSignalsPerDisplay.begin(),
+                  refreshRateRankingsAndSignalsPerDisplay.end(),
+                  [&](const auto& refreshRateRankingsAndSignal) {
+                      for (const auto& ranking : refreshRateRankingsAndSignal.refreshRateRankings) {
+                          if (ranking.displayModePtr->getFps() == chosenFps) {
+                              displayModeConfigs.emplace_back(
+                                      DisplayModeConfig{refreshRateRankingsAndSignal.globalSignals,
+                                                        ranking.displayModePtr});
+                              break;
+                          }
+                      }
+                  });
+    return displayModeConfigs;
+}
+
+DisplayModeSelectionParams Scheduler::getDisplayModeSelectionParams() const {
     const bool powerOnImminent = mDisplayPowerTimer &&
             (mPolicy.displayPowerMode != hal::PowerMode::ON ||
              mPolicy.displayPowerTimer == TimerState::Reset);
@@ -715,7 +781,18 @@
                                 .idle = mPolicy.idleTimer == TimerState::Expired,
                                 .powerOnImminent = powerOnImminent};
 
-    return configs->getRankedRefreshRates(mPolicy.contentRequirements, signals);
+    return {mPolicy.contentRequirements, signals};
+}
+
+auto Scheduler::getRankedDisplayModes()
+        -> std::pair<std::vector<RefreshRateRanking>, GlobalSignals> {
+    ATRACE_CALL();
+
+    const auto configs = holdRefreshRateConfigs();
+
+    const auto displayModeSelectionParams = getDisplayModeSelectionParams();
+    return configs->getRankedRefreshRates(displayModeSelectionParams.layerRequirements,
+                                          displayModeSelectionParams.globalSignals);
 }
 
 DisplayModePtr Scheduler::getPreferredDisplayMode() {
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index f567205..609cebc 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -24,6 +24,7 @@
 #include <mutex>
 #include <optional>
 #include <unordered_map>
+#include <utility>
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic push
@@ -32,9 +33,11 @@
 #include <ui/GraphicTypes.h>
 #pragma clang diagnostic pop // ignored "-Wconversion -Wextra"
 
+#include <DisplayDevice.h>
 #include <scheduler/Features.h>
 #include <scheduler/Time.h>
 
+#include "Display/DisplayMap.h"
 #include "EventThread.h"
 #include "FrameRateOverrideMappings.h"
 #include "LayerHistory.h"
@@ -75,7 +78,6 @@
 namespace android {
 
 class FenceTime;
-class InjectVSyncSource;
 
 namespace frametimeline {
 class TokenManager;
@@ -83,11 +85,22 @@
 
 namespace scheduler {
 
+using GlobalSignals = RefreshRateConfigs::GlobalSignals;
+
+// Config representing the DisplayMode and considered signals for the Display.
+struct DisplayModeConfig {
+    const GlobalSignals signals;
+    const DisplayModePtr displayModePtr;
+
+    DisplayModeConfig(GlobalSignals signals, DisplayModePtr displayModePtr)
+          : signals(signals), displayModePtr(std::move(displayModePtr)) {}
+};
+
 struct ISchedulerCallback {
     using DisplayModeEvent = scheduler::DisplayModeEvent;
 
     virtual void setVsyncEnabled(bool) = 0;
-    virtual void requestDisplayMode(DisplayModePtr, DisplayModeEvent) = 0;
+    virtual void requestDisplayModes(std::vector<DisplayModeConfig>) = 0;
     virtual void kernelTimerChanged(bool expired) = 0;
     virtual void triggerOnFrameRateOverridesChanged() = 0;
 
@@ -95,6 +108,25 @@
     ~ISchedulerCallback() = default;
 };
 
+// Holds the total score of the FPS and
+// number of displays the FPS is found in.
+struct AggregatedFpsScore {
+    float totalScore;
+    size_t numDisplays;
+};
+
+// Represents LayerRequirements and GlobalSignals to be considered for the display mode selection.
+struct DisplayModeSelectionParams {
+    std::vector<RefreshRateConfigs::LayerRequirement> layerRequirements;
+    GlobalSignals globalSignals;
+};
+
+// Represents the RefreshRateRankings and GlobalSignals for the selected RefreshRateRankings.
+struct RefreshRateRankingsAndSignals {
+    std::vector<RefreshRateRanking> refreshRateRankings;
+    GlobalSignals globalSignals;
+};
+
 class Scheduler : android::impl::MessageQueue {
     using Impl = android::impl::MessageQueue;
 
@@ -111,7 +143,6 @@
     void createVsyncSchedule(FeatureFlags);
 
     using Impl::initVsync;
-    using Impl::setInjector;
 
     using Impl::getScheduledFrameTime;
     using Impl::setDuration;
@@ -129,8 +160,7 @@
 
     ConnectionHandle createConnection(const char* connectionName, frametimeline::TokenManager*,
                                       std::chrono::nanoseconds workDuration,
-                                      std::chrono::nanoseconds readyDuration,
-                                      android::impl::EventThread::InterceptVSyncsCallback);
+                                      std::chrono::nanoseconds readyDuration);
 
     sp<IDisplayEventConnection> createDisplayEventConnection(
             ConnectionHandle, EventRegistrationFlags eventRegistration = {});
@@ -150,10 +180,6 @@
     void setDuration(ConnectionHandle, std::chrono::nanoseconds workDuration,
                      std::chrono::nanoseconds readyDuration);
 
-    // Returns injector handle if injection has toggled, or an invalid handle otherwise.
-    ConnectionHandle enableVSyncInjection(bool enable);
-    // Returns false if injection is disabled.
-    bool injectVSync(nsecs_t when, nsecs_t expectedVSyncTime, nsecs_t deadlineTimestamp);
     void enableHardwareVsync();
     void disableHardwareVsync(bool makeUnavailable);
 
@@ -237,6 +263,9 @@
         return mLayerHistory.getLayerFramerate(now, id);
     }
 
+    void registerDisplay(const sp<const DisplayDevice>&);
+    void unregisterDisplay(PhysicalDisplayId);
+
 private:
     friend class TestableScheduler;
 
@@ -260,8 +289,6 @@
 
     void setVsyncPeriod(nsecs_t period);
 
-    using GlobalSignals = RefreshRateConfigs::GlobalSignals;
-
     struct Policy;
 
     // Sets the S state of the policy to the T value under mPolicyLock, and chooses a display mode
@@ -274,6 +301,17 @@
     std::pair<std::vector<RefreshRateRanking>, GlobalSignals> getRankedDisplayModes()
             REQUIRES(mPolicyLock);
 
+    // Returns the best display mode per display.
+    std::vector<DisplayModeConfig> getBestDisplayModeConfigs() const REQUIRES(mPolicyLock);
+
+    // Returns the list of DisplayModeConfigs per display for the chosenFps.
+    std::vector<DisplayModeConfig> getDisplayModeConfigsForTheChosenFps(
+            Fps chosenFps, const std::vector<RefreshRateRankingsAndSignals>&) const;
+
+    // Returns the DisplayModeSelectionParams to be considered for the
+    // DisplayMode selection based on the current Policy and GlobalSignals.
+    DisplayModeSelectionParams getDisplayModeSelectionParams() const REQUIRES(mPolicyLock);
+
     bool updateFrameRateOverrides(GlobalSignals, Fps displayRefreshRate) REQUIRES(mPolicyLock);
 
     void dispatchCachedReportedMode() REQUIRES(mPolicyLock) EXCLUDES(mRefreshRateConfigsLock);
@@ -298,10 +336,6 @@
     mutable std::mutex mConnectionsLock;
     std::unordered_map<ConnectionHandle, Connection> mConnections GUARDED_BY(mConnectionsLock);
 
-    bool mInjectVSyncs = false;
-    InjectVSyncSource* mVSyncInjector = nullptr;
-    ConnectionHandle mInjectorConnectionHandle;
-
     mutable std::mutex mHWVsyncLock;
     bool mPrimaryHWVsyncEnabled GUARDED_BY(mHWVsyncLock) = false;
     bool mHWVsyncAvailable GUARDED_BY(mHWVsyncLock) = false;
@@ -323,6 +357,10 @@
 
     mutable std::mutex mPolicyLock;
 
+    // Holds the Physical displays registered through the SurfaceFlinger, used for making
+    // the refresh rate selections.
+    display::PhysicalDisplayMap<PhysicalDisplayId, const sp<const DisplayDevice>> mDisplays;
+
     struct Policy {
         // Policy for choosing the display mode.
         LayerHistory::Summary contentRequirements;
diff --git a/services/surfaceflinger/Scheduler/include/scheduler/Fps.h b/services/surfaceflinger/Scheduler/include/scheduler/Fps.h
index bd4f409..2c77142 100644
--- a/services/surfaceflinger/Scheduler/include/scheduler/Fps.h
+++ b/services/surfaceflinger/Scheduler/include/scheduler/Fps.h
@@ -138,6 +138,10 @@
     bool operator()(Fps lhs, Fps rhs) const { return isApproxEqual(lhs, rhs); }
 };
 
+struct FpsHash {
+    size_t operator()(Fps fps) const { return std::hash<nsecs_t>()(fps.getPeriodNsecs()); }
+};
+
 inline std::string to_string(Fps fps) {
     return base::StringPrintf("%.2f Hz", fps.getValue());
 }
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index fac0792..6167378 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -129,17 +129,13 @@
 #include "LayerVector.h"
 #include "MutexUtils.h"
 #include "NativeWindowSurface.h"
-#include "RefreshRateOverlay.h"
 #include "RegionSamplingThread.h"
-#include "Scheduler/DispSyncSource.h"
 #include "Scheduler/EventThread.h"
 #include "Scheduler/LayerHistory.h"
 #include "Scheduler/Scheduler.h"
 #include "Scheduler/VsyncConfiguration.h"
-#include "Scheduler/VsyncController.h"
 #include "StartPropertySetThread.h"
 #include "SurfaceFlingerProperties.h"
-#include "SurfaceInterceptor.h"
 #include "TimeStats/TimeStats.h"
 #include "TunnelModeEnabledReporter.h"
 #include "Utils/Dumper.h"
@@ -303,7 +299,6 @@
 SurfaceFlinger::SurfaceFlinger(Factory& factory, SkipInitializationTag)
       : mFactory(factory),
         mPid(getpid()),
-        mInterceptor(mFactory.createSurfaceInterceptor()),
         mTimeStats(std::make_shared<impl::TimeStats>()),
         mFrameTracer(mFactory.createFrameTracer()),
         mFrameTimeline(mFactory.createFrameTimeline(mTimeStats, mPid)),
@@ -498,7 +493,6 @@
     state.isSecure = secure;
     state.displayName = displayName;
     mCurrentState.displays.add(token, state);
-    mInterceptor->saveDisplayCreation(state);
     return token;
 }
 
@@ -516,7 +510,6 @@
         ALOGE("%s: Invalid operation on physical display", __func__);
         return;
     }
-    mInterceptor->saveDisplayDeletion(state.sequenceId);
     mCurrentState.displays.removeItemsAt(index);
     setTransactionFlags(eDisplayTransactionNeeded);
 }
@@ -747,6 +740,7 @@
 void SurfaceFlinger::init() FTL_FAKE_GUARD(kMainThreadContext) {
     ALOGI(  "SurfaceFlinger's main thread ready to run. "
             "Initializing graphics H/W...");
+    addTransactionReadyFilters();
     Mutex::Autolock lock(mStateLock);
 
     // Get a RenderEngine for the given display / config (can't fail)
@@ -1548,27 +1542,6 @@
     return NO_ERROR;
 }
 
-status_t SurfaceFlinger::enableVSyncInjections(bool enable) {
-    auto future = mScheduler->schedule([=] {
-        Mutex::Autolock lock(mStateLock);
-
-        if (const auto handle = mScheduler->enableVSyncInjection(enable)) {
-            mScheduler->setInjector(enable ? mScheduler->getEventConnection(handle) : nullptr);
-        }
-    });
-
-    future.wait();
-    return NO_ERROR;
-}
-
-status_t SurfaceFlinger::injectVSync(nsecs_t when) {
-    Mutex::Autolock lock(mStateLock);
-    const nsecs_t expectedPresentTime = calculateExpectedPresentTime(TimePoint::fromNs(when)).ns();
-    const nsecs_t deadlineTimestamp = expectedPresentTime;
-    return mScheduler->injectVSync(when, expectedPresentTime, deadlineTimestamp) ? NO_ERROR
-                                                                                 : BAD_VALUE;
-}
-
 status_t SurfaceFlinger::getLayerDebugInfo(std::vector<gui::LayerDebugInfo>* outLayers) {
     outLayers->clear();
     auto future = mScheduler->schedule([=] {
@@ -2692,8 +2665,6 @@
         const auto& display = displayOpt->get();
 
         if (const ssize_t index = mCurrentState.displays.indexOfKey(display.token()); index >= 0) {
-            const DisplayDeviceState& state = mCurrentState.displays.valueAt(index);
-            mInterceptor->saveDisplayDeletion(state.sequenceId);
             mCurrentState.displays.removeItemsAt(index);
         }
 
@@ -2748,7 +2719,6 @@
     state.displayName = std::move(info.name);
 
     mCurrentState.displays.add(token, state);
-    mInterceptor->saveDisplayCreation(state);
     return "Connecting";
 }
 
@@ -2940,7 +2910,7 @@
         if (display->isPrimary()) {
             mScheduler->setRefreshRateConfigs(display->holdRefreshRateConfigs());
         }
-
+        mScheduler->registerDisplay(display);
         dispatchDisplayHotplugEvent(display->getPhysicalId(), true);
     }
 
@@ -2956,6 +2926,7 @@
             releaseVirtualDisplay(display->getVirtualId());
         } else {
             dispatchDisplayHotplugEvent(display->getPhysicalId(), false);
+            mScheduler->unregisterDisplay(display->getPhysicalId());
         }
     }
 
@@ -2992,6 +2963,8 @@
             display->disconnect();
             if (display->isVirtual()) {
                 releaseVirtualDisplay(display->getVirtualId());
+            } else {
+                mScheduler->unregisterDisplay(display->getPhysicalId());
             }
         }
 
@@ -3321,25 +3294,34 @@
     mCompositionEngine->updateCursorAsync(refreshArgs);
 }
 
-void SurfaceFlinger::requestDisplayMode(DisplayModePtr mode, DisplayModeEvent event) {
+void SurfaceFlinger::requestDisplayModes(
+        std::vector<scheduler::DisplayModeConfig> displayModeConfigs) {
+    if (mBootStage != BootStage::FINISHED) {
+        ALOGV("Currently in the boot stage, skipping display mode changes");
+        return;
+    }
+
+    ATRACE_CALL();
     // If this is called from the main thread mStateLock must be locked before
     // Currently the only way to call this function from the main thread is from
     // Scheduler::chooseRefreshRateForContent
 
     ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
 
-    const auto display = getDefaultDisplayDeviceLocked();
-    if (!display || mBootStage != BootStage::FINISHED) {
-        return;
-    }
-    ATRACE_CALL();
-
-    if (!display->refreshRateConfigs().isModeAllowed(mode->getId())) {
-        ALOGV("Skipping disallowed mode %d", mode->getId().value());
-        return;
-    }
-
-    setDesiredActiveMode({std::move(mode), event});
+    std::for_each(displayModeConfigs.begin(), displayModeConfigs.end(),
+                  [&](const auto& config) REQUIRES(mStateLock) {
+                      const auto& displayModePtr = config.displayModePtr;
+                      if (const auto display =
+                                  getDisplayDeviceLocked(displayModePtr->getPhysicalDisplayId());
+                          display->refreshRateConfigs().isModeAllowed(displayModePtr->getId())) {
+                          const auto event = config.signals.idle ? DisplayModeEvent::None
+                                                                 : DisplayModeEvent::Changed;
+                          setDesiredActiveMode({displayModePtr, event});
+                      } else {
+                          ALOGV("Skipping disallowed mode %d for display %" PRId64,
+                                displayModePtr->getId().value(), display->getPhysicalId().value);
+                      }
+                  });
 }
 
 void SurfaceFlinger::triggerOnFrameRateOverridesChanged() {
@@ -3388,6 +3370,7 @@
 
         mScheduler->createVsyncSchedule(features);
         mScheduler->setRefreshRateConfigs(std::move(configs));
+        mScheduler->registerDisplay(display);
     }
     setVsyncEnabled(false);
     mScheduler->startTimers();
@@ -3397,15 +3380,11 @@
     mAppConnectionHandle =
             mScheduler->createConnection("app", mFrameTimeline->getTokenManager(),
                                          /*workDuration=*/configs.late.appWorkDuration,
-                                         /*readyDuration=*/configs.late.sfWorkDuration,
-                                         impl::EventThread::InterceptVSyncsCallback());
+                                         /*readyDuration=*/configs.late.sfWorkDuration);
     mSfConnectionHandle =
             mScheduler->createConnection("appSf", mFrameTimeline->getTokenManager(),
                                          /*workDuration=*/std::chrono::nanoseconds(vsyncPeriod),
-                                         /*readyDuration=*/configs.late.sfWorkDuration,
-                                         [this](nsecs_t timestamp) {
-                                             mInterceptor->saveVSyncEvent(timestamp);
-                                         });
+                                         /*readyDuration=*/configs.late.sfWorkDuration);
 
     mScheduler->initVsync(mScheduler->getVsyncSchedule().getDispatch(),
                           *mFrameTimeline->getTokenManager(), configs.late.sfWorkDuration);
@@ -3649,122 +3628,117 @@
     }
 }
 
-int SurfaceFlinger::flushPendingTransactionQueues(
-        std::vector<TransactionState>& transactions,
-        std::unordered_map<sp<IBinder>, uint64_t, SpHash<IBinder>>& bufferLayersReadyToPresent,
-        bool tryApplyUnsignaled) {
-    std::unordered_set<sp<IBinder>, SpHash<IBinder>> applyTokensWithUnsignaledTransactions;
-    int transactionsPendingBarrier = 0;
-    auto it = mPendingTransactionQueues.begin();
-    while (it != mPendingTransactionQueues.end()) {
-        auto& [applyToken, transactionQueue] = *it;
-        while (!transactionQueue.empty()) {
-            // if we are in LatchUnsignaledConfig::AutoSingleLayer
-            // then we should have only one applyToken for processing.
-            // so we can stop further transactions on this applyToken.
-            if (enableLatchUnsignaledConfig == LatchUnsignaledConfig::AutoSingleLayer &&
-                !applyTokensWithUnsignaledTransactions.empty()) {
-                ATRACE_NAME("stopTransactionProcessing");
-                break;
-            }
-
-            auto& transaction = transactionQueue.front();
-            const auto ready =
-                    transactionIsReadyToBeApplied(transaction, transaction.frameTimelineInfo,
-                                                  transaction.isAutoTimestamp,
-                                                  TimePoint::fromNs(transaction.desiredPresentTime),
-                                                  transaction.originUid, transaction.states,
-                                                  bufferLayersReadyToPresent, transactions.size(),
-                                                  tryApplyUnsignaled);
-            ATRACE_INT("TransactionReadiness", static_cast<int>(ready));
-            if (ready == TransactionReadiness::NotReady) {
-                setTransactionFlags(eTransactionFlushNeeded);
-                break;
-            }
-            if (ready == TransactionReadiness::NotReadyBarrier) {
-                transactionsPendingBarrier++;
-                setTransactionFlags(eTransactionFlushNeeded);
-                break;
-            }
-            transaction.traverseStatesWithBuffers([&](const layer_state_t& state) {
-                const bool frameNumberChanged = state.bufferData->flags.test(
-                        BufferData::BufferDataChange::frameNumberChanged);
-                if (frameNumberChanged) {
-                    bufferLayersReadyToPresent[state.surface] = state.bufferData->frameNumber;
-                } else {
-                    // Barrier function only used for BBQ which always includes a frame number
-                    bufferLayersReadyToPresent[state.surface] =
-                        std::numeric_limits<uint64_t>::max();
-                }
-            });
-            const bool appliedUnsignaled = (ready == TransactionReadiness::ReadyUnsignaled);
-            if (appliedUnsignaled) {
-                applyTokensWithUnsignaledTransactions.insert(transaction.applyToken);
-            }
-
-            transactions.emplace_back(std::move(transaction));
-            transactionQueue.pop();
-            mPendingTransactionCount--;
-            ATRACE_INT("TransactionQueue", mPendingTransactionCount.load());
-        }
-
-        if (transactionQueue.empty()) {
-            it = mPendingTransactionQueues.erase(it);
-        } else {
-            it = std::next(it, 1);
-        }
+TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyTimelineCheck(
+        const TransactionHandler::TransactionFlushState& flushState) {
+    using TransactionReadiness = TransactionHandler::TransactionReadiness;
+    const auto& transaction = *flushState.transaction;
+    ATRACE_FORMAT("transactionIsReadyToBeApplied vsyncId: %" PRId64,
+                  transaction.frameTimelineInfo.vsyncId);
+    TimePoint desiredPresentTime = TimePoint::fromNs(transaction.desiredPresentTime);
+    // Do not present if the desiredPresentTime has not passed unless it is more than
+    // one second in the future. We ignore timestamps more than 1 second in the future
+    // for stability reasons.
+    if (!transaction.isAutoTimestamp && desiredPresentTime >= mExpectedPresentTime &&
+        desiredPresentTime < mExpectedPresentTime + 1s) {
+        ATRACE_NAME("not current");
+        return TransactionReadiness::NotReady;
     }
-    return transactionsPendingBarrier;
+
+    if (!mScheduler->isVsyncValid(mExpectedPresentTime, transaction.originUid)) {
+        ATRACE_NAME("!isVsyncValid");
+        return TransactionReadiness::NotReady;
+    }
+
+    // If the client didn't specify desiredPresentTime, use the vsyncId to determine the
+    // expected present time of this transaction.
+    if (transaction.isAutoTimestamp &&
+        frameIsEarly(mExpectedPresentTime, VsyncId{transaction.frameTimelineInfo.vsyncId})) {
+        ATRACE_NAME("frameIsEarly");
+        return TransactionReadiness::NotReady;
+    }
+    return TransactionReadiness::Ready;
+}
+
+TransactionHandler::TransactionReadiness SurfaceFlinger::transactionReadyBufferCheck(
+        const TransactionHandler::TransactionFlushState& flushState) {
+    using TransactionReadiness = TransactionHandler::TransactionReadiness;
+    auto ready = TransactionReadiness::Ready;
+    flushState.transaction->traverseStatesWithBuffersWhileTrue([&](const layer_state_t& s) -> bool {
+        sp<Layer> layer = Layer::fromHandle(s.surface).promote();
+        const auto& transaction = *flushState.transaction;
+        // check for barrier frames
+        if (s.bufferData->hasBarrier &&
+            ((layer->getDrawingState().frameNumber) < s.bufferData->barrierFrameNumber)) {
+            const bool willApplyBarrierFrame =
+                    flushState.bufferLayersReadyToPresent.contains(s.surface.get()) &&
+                    (flushState.bufferLayersReadyToPresent.get(s.surface.get()) >=
+                     s.bufferData->barrierFrameNumber);
+            if (!willApplyBarrierFrame) {
+                ATRACE_NAME("NotReadyBarrier");
+                ready = TransactionReadiness::NotReadyBarrier;
+                return false;
+            }
+        }
+
+        // If backpressure is enabled and we already have a buffer to commit, keep
+        // the transaction in the queue.
+        const bool hasPendingBuffer =
+                flushState.bufferLayersReadyToPresent.contains(s.surface.get());
+        if (layer->backpressureEnabled() && hasPendingBuffer && transaction.isAutoTimestamp) {
+            ATRACE_NAME("hasPendingBuffer");
+            ready = TransactionReadiness::NotReady;
+            return false;
+        }
+
+        // check fence status
+        const bool allowLatchUnsignaled = shouldLatchUnsignaled(layer, s, transaction.states.size(),
+                                                                flushState.firstTransaction);
+        ATRACE_FORMAT("%s allowLatchUnsignaled=%s", layer->getName().c_str(),
+                      allowLatchUnsignaled ? "true" : "false");
+
+        const bool acquireFenceChanged = s.bufferData &&
+                s.bufferData->flags.test(BufferData::BufferDataChange::fenceChanged) &&
+                s.bufferData->acquireFence;
+        const bool fenceSignaled =
+                (!acquireFenceChanged ||
+                 s.bufferData->acquireFence->getStatus() != Fence::Status::Unsignaled);
+        if (!fenceSignaled) {
+            if (!allowLatchUnsignaled) {
+                ready = TransactionReadiness::NotReady;
+                auto& listener = s.bufferData->releaseBufferListener;
+                if (listener &&
+                    (flushState.queueProcessTime - transaction.postTime) >
+                            std::chrono::nanoseconds(4s).count()) {
+                    mTransactionHandler.onTransactionQueueStalled(transaction, listener);
+                }
+                return false;
+            }
+
+            ready = enableLatchUnsignaledConfig == LatchUnsignaledConfig::AutoSingleLayer
+                    ? TransactionReadiness::ReadyUnsignaledSingle
+                    : TransactionReadiness::ReadyUnsignaled;
+        }
+        return true;
+    });
+    ATRACE_INT("TransactionReadiness", static_cast<int>(ready));
+    return ready;
+}
+
+void SurfaceFlinger::addTransactionReadyFilters() {
+    mTransactionHandler.addTransactionReadyFilter(
+            std::bind(&SurfaceFlinger::transactionReadyTimelineCheck, this, std::placeholders::_1));
+    mTransactionHandler.addTransactionReadyFilter(
+            std::bind(&SurfaceFlinger::transactionReadyBufferCheck, this, std::placeholders::_1));
 }
 
 bool SurfaceFlinger::flushTransactionQueues(VsyncId vsyncId) {
     // to prevent onHandleDestroyed from being called while the lock is held,
     // we must keep a copy of the transactions (specifically the composer
     // states) around outside the scope of the lock
-    std::vector<TransactionState> transactions;
-    // Layer handles that have transactions with buffers that are ready to be applied.
-    std::unordered_map<sp<IBinder>, uint64_t, SpHash<IBinder>> bufferLayersReadyToPresent;
+    std::vector<TransactionState> transactions = mTransactionHandler.flushTransactions();
     {
         Mutex::Autolock _l(mStateLock);
-        {
-            while (!mLocklessTransactionQueue.isEmpty()) {
-                auto maybeTransaction = mLocklessTransactionQueue.pop();
-                if (!maybeTransaction.has_value()) {
-                    break;
-                }
-                auto transaction = maybeTransaction.value();
-                mPendingTransactionQueues[transaction.applyToken].push(std::move(transaction));
-            }
-
-            // Transactions with a buffer pending on a barrier may be on a different applyToken
-            // than the transaction which satisfies our barrier. In fact this is the exact use case
-            // that the primitive is designed for. This means we may first process
-            // the barrier dependent transaction, determine it ineligible to complete
-            // and then satisfy in a later inner iteration of flushPendingTransactionQueues.
-            // The barrier dependent transaction was eligible to be presented in this frame
-            // but we would have prevented it without case. To fix this we continually
-            // loop through flushPendingTransactionQueues until we perform an iteration
-            // where the number of transactionsPendingBarrier doesn't change. This way
-            // we can continue to resolve dependency chains of barriers as far as possible.
-            int lastTransactionsPendingBarrier = 0;
-            int transactionsPendingBarrier = 0;
-            do {
-                lastTransactionsPendingBarrier = transactionsPendingBarrier;
-                transactionsPendingBarrier =
-                        flushPendingTransactionQueues(transactions, bufferLayersReadyToPresent,
-                                                      /*tryApplyUnsignaled*/ false);
-            } while (lastTransactionsPendingBarrier != transactionsPendingBarrier);
-
-            // We collected all transactions that could apply without latching unsignaled buffers.
-            // If we are allowing latch unsignaled of some form, now it's the time to go over the
-            // transactions that were not applied and try to apply them unsignaled.
-            if (enableLatchUnsignaledConfig != LatchUnsignaledConfig::Disabled) {
-                flushPendingTransactionQueues(transactions, bufferLayersReadyToPresent,
-                                              /*tryApplyUnsignaled*/ true);
-            }
-
-            return applyTransactions(transactions, vsyncId);
-        }
+        return applyTransactions(transactions, vsyncId);
     }
 }
 
@@ -3791,7 +3765,7 @@
 }
 
 bool SurfaceFlinger::transactionFlushNeeded() {
-    return !mPendingTransactionQueues.empty() || !mLocklessTransactionQueue.isEmpty();
+    return mTransactionHandler.hasPendingTransactions();
 }
 
 bool SurfaceFlinger::frameIsEarly(TimePoint expectedPresentTime, VsyncId vsyncId) const {
@@ -3817,7 +3791,7 @@
 }
 
 bool SurfaceFlinger::shouldLatchUnsignaled(const sp<Layer>& layer, const layer_state_t& state,
-                                           size_t numStates, size_t totalTXapplied) const {
+                                           size_t numStates, bool firstTransaction) const {
     if (enableLatchUnsignaledConfig == LatchUnsignaledConfig::Disabled) {
         ALOGV("%s: false (LatchUnsignaledConfig::Disabled)", __func__);
         return false;
@@ -3836,9 +3810,9 @@
     }
 
     if (enableLatchUnsignaledConfig == LatchUnsignaledConfig::AutoSingleLayer) {
-        if (totalTXapplied > 0) {
-            ALOGV("%s: false (LatchUnsignaledConfig::AutoSingleLayer; totalTXapplied=%zu)",
-                  __func__, totalTXapplied);
+        if (!firstTransaction) {
+            ALOGV("%s: false (LatchUnsignaledConfig::AutoSingleLayer; not first transaction)",
+                  __func__);
             return false;
         }
 
@@ -3862,116 +3836,6 @@
     return true;
 }
 
-auto SurfaceFlinger::transactionIsReadyToBeApplied(
-        TransactionState& transaction, const FrameTimelineInfo& info, bool isAutoTimestamp,
-        TimePoint desiredPresentTime, uid_t originUid, const Vector<ComposerState>& states,
-        const std::unordered_map<sp<IBinder>, uint64_t, SpHash<IBinder>>&
-                bufferLayersReadyToPresent,
-        size_t totalTXapplied, bool tryApplyUnsignaled) const -> TransactionReadiness {
-    ATRACE_FORMAT("transactionIsReadyToBeApplied vsyncId: %" PRId64, info.vsyncId);
-    // Do not present if the desiredPresentTime has not passed unless it is more than one second
-    // in the future. We ignore timestamps more than 1 second in the future for stability reasons.
-    if (!isAutoTimestamp && desiredPresentTime >= mExpectedPresentTime &&
-        desiredPresentTime < mExpectedPresentTime + 1s) {
-        ATRACE_NAME("not current");
-        return TransactionReadiness::NotReady;
-    }
-
-    if (!mScheduler->isVsyncValid(mExpectedPresentTime, originUid)) {
-        ATRACE_NAME("!isVsyncValid");
-        return TransactionReadiness::NotReady;
-    }
-
-    // If the client didn't specify desiredPresentTime, use the vsyncId to determine the expected
-    // present time of this transaction.
-    if (isAutoTimestamp && frameIsEarly(mExpectedPresentTime, VsyncId{info.vsyncId})) {
-        ATRACE_NAME("frameIsEarly");
-        return TransactionReadiness::NotReady;
-    }
-
-    bool fenceUnsignaled = false;
-    auto queueProcessTime = systemTime();
-    for (const ComposerState& state : states) {
-        const layer_state_t& s = state.state;
-
-        sp<Layer> layer = nullptr;
-        if (s.surface) {
-            layer = fromHandle(s.surface).promote();
-        } else if (s.hasBufferChanges()) {
-            ALOGW("Transaction with buffer, but no Layer?");
-            continue;
-        }
-        if (!layer) {
-            continue;
-        }
-
-        if (s.hasBufferChanges() && s.bufferData->hasBarrier &&
-            ((layer->getDrawingState().frameNumber) < s.bufferData->barrierFrameNumber)) {
-            const bool willApplyBarrierFrame =
-                (bufferLayersReadyToPresent.find(s.surface) != bufferLayersReadyToPresent.end()) &&
-                (bufferLayersReadyToPresent.at(s.surface) >= s.bufferData->barrierFrameNumber);
-            if (!willApplyBarrierFrame) {
-                ATRACE_NAME("NotReadyBarrier");
-                return TransactionReadiness::NotReadyBarrier;
-            }
-        }
-
-        const bool allowLatchUnsignaled = tryApplyUnsignaled &&
-                shouldLatchUnsignaled(layer, s, states.size(), totalTXapplied);
-        ATRACE_FORMAT("%s allowLatchUnsignaled=%s", layer->getName().c_str(),
-                      allowLatchUnsignaled ? "true" : "false");
-
-        const bool acquireFenceChanged = s.bufferData &&
-                s.bufferData->flags.test(BufferData::BufferDataChange::fenceChanged) &&
-                s.bufferData->acquireFence;
-        fenceUnsignaled = fenceUnsignaled ||
-                (acquireFenceChanged &&
-                 s.bufferData->acquireFence->getStatus() == Fence::Status::Unsignaled);
-
-        if (fenceUnsignaled && !allowLatchUnsignaled) {
-            if (!transaction.sentFenceTimeoutWarning &&
-                queueProcessTime - transaction.postTime > std::chrono::nanoseconds(4s).count()) {
-                transaction.sentFenceTimeoutWarning = true;
-                auto listener = s.bufferData->releaseBufferListener;
-                if (listener) {
-                    listener->onTransactionQueueStalled();
-                }
-            }
-
-            ATRACE_NAME("fence unsignaled");
-            return TransactionReadiness::NotReady;
-        }
-
-        if (s.hasBufferChanges()) {
-            // If backpressure is enabled and we already have a buffer to commit, keep the
-            // transaction in the queue.
-            const bool hasPendingBuffer = bufferLayersReadyToPresent.find(s.surface) !=
-                bufferLayersReadyToPresent.end();
-            if (layer->backpressureEnabled() && hasPendingBuffer && isAutoTimestamp) {
-                ATRACE_NAME("hasPendingBuffer");
-                return TransactionReadiness::NotReady;
-            }
-        }
-    }
-    return fenceUnsignaled ? TransactionReadiness::ReadyUnsignaled : TransactionReadiness::Ready;
-}
-
-void SurfaceFlinger::queueTransaction(TransactionState& state) {
-    mLocklessTransactionQueue.push(state);
-    mPendingTransactionCount++;
-    ATRACE_INT("TransactionQueue", mPendingTransactionCount.load());
-
-    const auto schedule = [](uint32_t flags) {
-        if (flags & eEarlyWakeupEnd) return TransactionSchedule::EarlyEnd;
-        if (flags & eEarlyWakeupStart) return TransactionSchedule::EarlyStart;
-        return TransactionSchedule::Late;
-    }(state.flags);
-
-    const auto frameHint = state.isFrameActive() ? FrameHint::kActive : FrameHint::kNone;
-
-    setTransactionFlags(eTransactionFlushNeeded, schedule, state.applyToken, frameHint);
-}
-
 status_t SurfaceFlinger::setTransactionState(
         const FrameTimelineInfo& frameTimelineInfo, const Vector<ComposerState>& states,
         const Vector<DisplayState>& displays, uint32_t flags, const sp<IBinder>& applyToken,
@@ -4022,7 +3886,16 @@
     if (mTransactionTracing) {
         mTransactionTracing->addQueuedTransaction(state);
     }
-    queueTransaction(state);
+
+    const auto schedule = [](uint32_t flags) {
+        if (flags & eEarlyWakeupEnd) return TransactionSchedule::EarlyEnd;
+        if (flags & eEarlyWakeupStart) return TransactionSchedule::EarlyStart;
+        return TransactionSchedule::Late;
+    }(state.flags);
+
+    const auto frameHint = state.isFrameActive() ? FrameHint::kActive : FrameHint::kNone;
+    setTransactionFlags(eTransactionFlushNeeded, schedule, state.applyToken, frameHint);
+    mTransactionHandler.queueTransaction(std::move(state));
 
     return NO_ERROR;
 }
@@ -4086,11 +3959,6 @@
 
     bool needsTraversal = false;
     if (transactionFlags) {
-        if (mInterceptor->isEnabled()) {
-            mInterceptor->saveTransaction(states, mCurrentState.displays, displays, flags,
-                                          originPid, originUid, transactionId);
-        }
-
         // We are on the main thread, we are about to preform a traversal. Clear the traversal bit
         // so we don't have to wake up again next frame to preform an unnecessary traversal.
         if (transactionFlags & eTraversalNeeded) {
@@ -4488,8 +4356,8 @@
 }
 
 status_t SurfaceFlinger::mirrorLayer(const LayerCreationArgs& args,
-                                     const sp<IBinder>& mirrorFromHandle, sp<IBinder>* outHandle,
-                                     int32_t* outLayerId) {
+                                     const sp<IBinder>& mirrorFromHandle,
+                                     gui::CreateSurfaceResult& outResult) {
     if (!mirrorFromHandle) {
         return NAME_NOT_FOUND;
     }
@@ -4504,7 +4372,7 @@
         }
         LayerCreationArgs mirrorArgs = args;
         mirrorArgs.flags |= ISurfaceComposerClient::eNoColorFill;
-        status_t result = createEffectLayer(mirrorArgs, outHandle, &mirrorLayer);
+        status_t result = createEffectLayer(mirrorArgs, &outResult.handle, &mirrorLayer);
         if (result != NO_ERROR) {
             return result;
         }
@@ -4512,17 +4380,20 @@
         mirrorLayer->setClonedChild(mirrorFrom->createClone());
     }
 
-    *outLayerId = mirrorLayer->sequence;
+    outResult.layerId = mirrorLayer->sequence;
+    outResult.layerName = String16(mirrorLayer->getDebugName());
     if (mTransactionTracing) {
-        mTransactionTracing->onMirrorLayerAdded((*outHandle)->localBinder(), mirrorLayer->sequence,
-                                                args.name, mirrorFrom->sequence);
+        mTransactionTracing->onMirrorLayerAdded(outResult.handle->localBinder(),
+                                                mirrorLayer->sequence, args.name,
+                                                mirrorFrom->sequence);
     }
-    return addClientLayer(args.client, *outHandle, mirrorLayer /* layer */, nullptr /* parent */,
-                          false /* addToRoot */, nullptr /* outTransformHint */);
+    return addClientLayer(args.client, outResult.handle, mirrorLayer /* layer */,
+                          nullptr /* parent */, false /* addToRoot */,
+                          nullptr /* outTransformHint */);
 }
 
 status_t SurfaceFlinger::mirrorDisplay(DisplayId displayId, const LayerCreationArgs& args,
-                                       sp<IBinder>* outHandle, int32_t* outLayerId) {
+                                       gui::CreateSurfaceResult& outResult) {
     IPCThreadState* ipc = IPCThreadState::self();
     const int uid = ipc->getCallingUid();
     if (uid != AID_ROOT && uid != AID_GRAPHICS && uid != AID_SYSTEM && uid != AID_SHELL) {
@@ -4545,9 +4416,10 @@
         layerStack = display->getLayerStack();
         LayerCreationArgs mirrorArgs = args;
         mirrorArgs.flags |= ISurfaceComposerClient::eNoColorFill;
-        result = createEffectLayer(mirrorArgs, outHandle, &rootMirrorLayer);
-        *outLayerId = rootMirrorLayer->sequence;
-        result |= addClientLayer(args.client, *outHandle, rootMirrorLayer /* layer */,
+        result = createEffectLayer(mirrorArgs, &outResult.handle, &rootMirrorLayer);
+        outResult.layerId = rootMirrorLayer->sequence;
+        outResult.layerName = String16(rootMirrorLayer->getDebugName());
+        result |= addClientLayer(args.client, outResult.handle, rootMirrorLayer /* layer */,
                                  nullptr /* parent */, true /* addToRoot */,
                                  nullptr /* outTransformHint */);
     }
@@ -4557,26 +4429,21 @@
     }
 
     if (mTransactionTracing) {
-        mTransactionTracing->onLayerAdded((*outHandle)->localBinder(), *outLayerId, args.name,
-                                          args.flags, -1 /* parentId */);
+        mTransactionTracing->onLayerAdded(outResult.handle->localBinder(), outResult.layerId,
+                                          args.name, args.flags, -1 /* parentId */);
     }
 
     {
         std::scoped_lock<std::mutex> lock(mMirrorDisplayLock);
-        mMirrorDisplays.emplace_back(layerStack, *outHandle, args.client);
+        mMirrorDisplays.emplace_back(layerStack, outResult.handle, args.client);
     }
 
     setTransactionFlags(eTransactionFlushNeeded);
     return NO_ERROR;
 }
 
-status_t SurfaceFlinger::createLayer(LayerCreationArgs& args, sp<IBinder>* outHandle,
-                                     const sp<IBinder>& parentHandle, int32_t* outLayerId,
-                                     const sp<Layer>& parentLayer, uint32_t* outTransformHint) {
-    ALOG_ASSERT(parentLayer == nullptr || parentHandle == nullptr,
-            "Expected only one of parentLayer or parentHandle to be non-null. "
-            "Programmer error?");
-
+status_t SurfaceFlinger::createLayer(LayerCreationArgs& args, const sp<IBinder>& parentHandle,
+                                     gui::CreateSurfaceResult& outResult) {
     status_t result = NO_ERROR;
 
     sp<Layer> layer;
@@ -4588,11 +4455,11 @@
             args.flags |= ISurfaceComposerClient::eNoColorFill;
             FMT_FALLTHROUGH;
         case ISurfaceComposerClient::eFXSurfaceEffect: {
-            result = createBufferStateLayer(args, outHandle, &layer);
+            result = createBufferStateLayer(args, &outResult.handle, &layer);
             std::atomic<int32_t>* pendingBufferCounter = layer->getPendingBufferCounter();
             if (pendingBufferCounter) {
                 std::string counterName = layer->getPendingBufferCounterName();
-                mBufferCountTracker.add((*outHandle)->localBinder(), counterName,
+                mBufferCountTracker.add(outResult.handle->localBinder(), counterName,
                                         pendingBufferCounter);
             }
         } break;
@@ -4606,14 +4473,11 @@
     }
 
     bool addToRoot = args.addToRoot && callingThreadHasUnscopedSurfaceFlingerAccess();
-    wp<Layer> parent(parentHandle != nullptr ? fromHandle(parentHandle) : parentLayer);
+    wp<Layer> parent = fromHandle(parentHandle);
     if (parentHandle != nullptr && parent == nullptr) {
         ALOGE("Invalid parent handle %p.", parentHandle.get());
         addToRoot = false;
     }
-    if (parentLayer != nullptr) {
-        addToRoot = false;
-    }
 
     int parentId = -1;
     // We can safely promote the layer in binder thread because we have a strong reference
@@ -4623,16 +4487,20 @@
         parentId = parentSp->getSequence();
     }
     if (mTransactionTracing) {
-        mTransactionTracing->onLayerAdded((*outHandle)->localBinder(), layer->sequence, args.name,
-                                          args.flags, parentId);
+        mTransactionTracing->onLayerAdded(outResult.handle->localBinder(), layer->sequence,
+                                          args.name, args.flags, parentId);
     }
 
-    result = addClientLayer(args.client, *outHandle, layer, parent, addToRoot, outTransformHint);
+    uint32_t outTransformHint;
+    result = addClientLayer(args.client, outResult.handle, layer, parent, addToRoot,
+                            &outTransformHint);
     if (result != NO_ERROR) {
         return result;
     }
 
-    *outLayerId = layer->sequence;
+    outResult.transformHint = static_cast<int32_t>(outTransformHint);
+    outResult.layerId = layer->sequence;
+    outResult.layerName = String16(layer->getDebugName());
     return result;
 }
 
@@ -4736,9 +4604,6 @@
 
     display->setPowerMode(mode);
 
-    if (mInterceptor->isEnabled()) {
-        mInterceptor->savePowerModeUpdate(display->getSequenceId(), static_cast<int32_t>(mode));
-    }
     const auto refreshRate = display->refreshRateConfigs().getActiveMode().getFps();
     if (*currentMode == hal::PowerMode::OFF) {
         // Turn on the display
@@ -5628,17 +5493,8 @@
                 mScheduler->setDuration(mSfConnectionHandle, std::chrono::nanoseconds(n), 0ns);
                 return NO_ERROR;
             }
-            case 1020: { // Layer updates interceptor
-                n = data.readInt32();
-                if (n) {
-                    ALOGV("Interceptor enabled");
-                    mInterceptor->enable(mDrawingState.layersSortedByZ, mDrawingState.displays);
-                }
-                else{
-                    ALOGV("Interceptor disabled");
-                    mInterceptor->disable();
-                }
-                return NO_ERROR;
+            case 1020: { // Unused
+                return NAME_NOT_FOUND;
             }
             case 1021: { // Disable HWC virtual displays
                 const bool enable = data.readInt32() != 0;
@@ -6911,17 +6767,6 @@
     }
 }
 
-status_t SurfaceFlinger::addTransactionTraceListener(
-        const sp<gui::ITransactionTraceListener>& listener) {
-    if (!listener) {
-        return BAD_VALUE;
-    }
-
-    mInterceptor->addTransactionTraceListener(listener);
-
-    return NO_ERROR;
-}
-
 int SurfaceFlinger::getGpuContextPriority() {
     return getRenderEngine().getContextPriority();
 }
@@ -7001,7 +6846,6 @@
     if (mTransactionTracing) {
         mTransactionTracing->onLayerAddedToDrawingState(layer->getSequence(), vsyncId.value);
     }
-    mInterceptor->saveSurfaceCreation(layer);
 }
 
 void SurfaceFlinger::sample() {
@@ -7510,30 +7354,6 @@
     return binderStatusFromStatusT(status);
 }
 
-binder::Status SurfaceComposerAIDL::enableVSyncInjections(bool enable) {
-    if (!mFlinger->hasMockHwc()) {
-        return binderStatusFromStatusT(PERMISSION_DENIED);
-    }
-
-    status_t status = checkAccessPermission();
-    if (status == OK) {
-        status = mFlinger->enableVSyncInjections(enable);
-    }
-    return binderStatusFromStatusT(status);
-}
-
-binder::Status SurfaceComposerAIDL::injectVSync(int64_t when) {
-    if (!mFlinger->hasMockHwc()) {
-        return binderStatusFromStatusT(PERMISSION_DENIED);
-    }
-
-    status_t status = checkAccessPermission();
-    if (status == OK) {
-        status = mFlinger->injectVSync(when);
-    }
-    return binderStatusFromStatusT(status);
-}
-
 binder::Status SurfaceComposerAIDL::getLayerDebugInfo(std::vector<gui::LayerDebugInfo>* outLayers) {
     if (!outLayers) {
         return binderStatusFromStatusT(UNEXPECTED_NULL);
@@ -7853,19 +7673,6 @@
     return binderStatusFromStatusT(status);
 }
 
-binder::Status SurfaceComposerAIDL::addTransactionTraceListener(
-        const sp<gui::ITransactionTraceListener>& listener) {
-    status_t status;
-    IPCThreadState* ipc = IPCThreadState::self();
-    const int uid = ipc->getCallingUid();
-    if (uid == AID_ROOT || uid == AID_GRAPHICS || uid == AID_SYSTEM || uid == AID_SHELL) {
-        status = mFlinger->addTransactionTraceListener(listener);
-    } else {
-        status = PERMISSION_DENIED;
-    }
-    return binderStatusFromStatusT(status);
-}
-
 binder::Status SurfaceComposerAIDL::getGpuContextPriority(int32_t* outPriority) {
     *outPriority = mFlinger->getGpuContextPriority();
     return binder::Status::ok();
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index cf226a5..c4c5b56 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -57,7 +57,6 @@
 #include <scheduler/Time.h>
 #include <ui/FenceResult.h>
 
-#include "ClientCache.h"
 #include "Display/DisplayMap.h"
 #include "Display/PhysicalDisplay.h"
 #include "DisplayDevice.h"
@@ -66,19 +65,17 @@
 #include "DisplayIdGenerator.h"
 #include "Effects/Daltonizer.h"
 #include "FlagManager.h"
-#include "FrameTracker.h"
 #include "LayerVector.h"
-#include "LocklessQueue.h"
 #include "Scheduler/RefreshRateConfigs.h"
 #include "Scheduler/RefreshRateStats.h"
 #include "Scheduler/Scheduler.h"
 #include "Scheduler/VsyncModulator.h"
 #include "SurfaceFlingerFactory.h"
 #include "ThreadContext.h"
-#include "TracedOrdinal.h"
 #include "Tracing/LayerTracing.h"
 #include "Tracing/TransactionTracing.h"
 #include "TransactionCallbackInvoker.h"
+#include "TransactionHandler.h"
 #include "TransactionState.h"
 
 #include <atomic>
@@ -337,6 +334,7 @@
     friend class RegionSamplingThread;
     friend class LayerRenderArea;
     friend class LayerTracing;
+    friend class SurfaceComposerAIDL;
 
     // For unit tests
     friend class TestableSurfaceFlinger;
@@ -532,8 +530,6 @@
     status_t overrideHdrTypes(const sp<IBinder>& displayToken,
                               const std::vector<ui::Hdr>& hdrTypes);
     status_t onPullAtom(const int32_t atomId, std::string* pulledData, bool* success);
-    status_t enableVSyncInjections(bool enable);
-    status_t injectVSync(nsecs_t when);
     status_t getLayerDebugInfo(std::vector<gui::LayerDebugInfo>* outLayers);
     status_t getColorManagement(bool* outGetColorManagement) const;
     status_t getCompositionPreference(ui::Dataspace* outDataspace, ui::PixelFormat* outPixelFormat,
@@ -590,8 +586,6 @@
 
     status_t setOverrideFrameRate(uid_t uid, float frameRate);
 
-    status_t addTransactionTraceListener(const sp<gui::ITransactionTraceListener>& listener);
-
     int getGpuContextPriority();
 
     status_t getMaxAcquiredBufferCount(int* buffers) const;
@@ -633,8 +627,8 @@
 
     // Toggles hardware VSYNC by calling into HWC.
     void setVsyncEnabled(bool) override;
-    // Sets the desired display mode if allowed by policy.
-    void requestDisplayMode(DisplayModePtr, DisplayModeEvent) override;
+    // Sets the desired display mode per display if allowed by policy .
+    void requestDisplayModes(std::vector<scheduler::DisplayModeConfig>) override;
     // Called when kernel idle timer has expired. Used to update the refresh rate overlay.
     void kernelTimerChanged(bool expired) override;
     // Called when the frame rate override list changed to trigger an event.
@@ -723,11 +717,13 @@
     bool flushTransactionQueues(VsyncId) REQUIRES(kMainThreadContext);
     // Returns true if there is at least one transaction that needs to be flushed
     bool transactionFlushNeeded();
-
-    int flushPendingTransactionQueues(
-            std::vector<TransactionState>& transactions,
-            std::unordered_map<sp<IBinder>, uint64_t, SpHash<IBinder>>& bufferLayersReadyToPresent,
-            bool tryApplyUnsignaled) REQUIRES(mStateLock) REQUIRES(kMainThreadContext);
+    void addTransactionReadyFilters();
+    TransactionHandler::TransactionReadiness transactionReadyTimelineCheck(
+            const TransactionHandler::TransactionFlushState& flushState)
+            REQUIRES(kMainThreadContext);
+    TransactionHandler::TransactionReadiness transactionReadyBufferCheck(
+            const TransactionHandler::TransactionFlushState& flushState)
+            REQUIRES(kMainThreadContext);
 
     uint32_t setClientStateLocked(const FrameTimelineInfo&, ComposerState&,
                                   int64_t desiredPresentTime, bool isAutoTimestamp,
@@ -745,23 +741,9 @@
 
     void commitOffscreenLayers();
 
-    enum class TransactionReadiness {
-        NotReady,
-        NotReadyBarrier,
-        Ready,
-        ReadyUnsignaled,
-    };
-    TransactionReadiness transactionIsReadyToBeApplied(
-            TransactionState&, const FrameTimelineInfo&, bool isAutoTimestamp,
-            TimePoint desiredPresentTime, uid_t originUid, const Vector<ComposerState>&,
-            const std::unordered_map<sp<IBinder>, uint64_t, SpHash<IBinder>>&
-                    bufferLayersReadyToPresent,
-            size_t totalTXapplied, bool tryApplyUnsignaled) const REQUIRES(mStateLock)
-            REQUIRES(kMainThreadContext);
-
     static LatchUnsignaledConfig getLatchUnsignaledConfig();
     bool shouldLatchUnsignaled(const sp<Layer>& layer, const layer_state_t&, size_t numStates,
-                               size_t totalTXapplied) const;
+                               bool firstTransaction) const;
     bool applyTransactions(std::vector<TransactionState>& transactions, VsyncId)
             REQUIRES(mStateLock);
     uint32_t setDisplayStateLocked(const DisplayState& s) REQUIRES(mStateLock);
@@ -772,10 +754,8 @@
     /*
      * Layer management
      */
-    status_t createLayer(LayerCreationArgs& args, sp<IBinder>* outHandle,
-                         const sp<IBinder>& parentHandle, int32_t* outLayerId,
-                         const sp<Layer>& parentLayer = nullptr,
-                         uint32_t* outTransformHint = nullptr);
+    status_t createLayer(LayerCreationArgs& args, const sp<IBinder>& parentHandle,
+                         gui::CreateSurfaceResult& outResult);
 
     status_t createBufferStateLayer(LayerCreationArgs& args, sp<IBinder>* outHandle,
                                     sp<Layer>* outLayer);
@@ -784,10 +764,10 @@
                                sp<Layer>* outLayer);
 
     status_t mirrorLayer(const LayerCreationArgs& args, const sp<IBinder>& mirrorFromHandle,
-                         sp<IBinder>* outHandle, int32_t* outLayerId);
+                         gui::CreateSurfaceResult& outResult);
 
     status_t mirrorDisplay(DisplayId displayId, const LayerCreationArgs& args,
-                           sp<IBinder>* outHandle, int32_t* outLayerId);
+                           gui::CreateSurfaceResult& outResult);
 
     // called when all clients have released all their references to
     // this layer meaning it is entirely safe to destroy all
@@ -1084,7 +1064,6 @@
     status_t CheckTransactCodeCredentials(uint32_t code);
 
     // Add transaction to the Transaction Queue
-    void queueTransaction(TransactionState& state);
 
     /*
      * Generic Layer Metadata
@@ -1213,7 +1192,6 @@
 
     bool mLayerCachingEnabled = false;
     bool mPropagateBackpressureClientComposition = false;
-    sp<SurfaceInterceptor> mInterceptor;
 
     LayerTracing mLayerTracing{*this};
     bool mLayerTracingEnabled = false;
@@ -1244,10 +1222,6 @@
     uint32_t mTexturePoolSize = 0;
     std::vector<uint32_t> mTexturePool;
 
-    std::unordered_map<sp<IBinder>, std::queue<TransactionState>, IListenerHash>
-            mPendingTransactionQueues;
-    LocklessQueue<TransactionState> mLocklessTransactionQueue;
-    std::atomic<size_t> mPendingTransactionCount = 0;
     std::atomic<size_t> mNumLayers = 0;
 
     // to linkToDeath
@@ -1286,8 +1260,6 @@
 
     const std::string mHwcServiceName;
 
-    bool hasMockHwc() const { return mHwcServiceName == "mock"; }
-
     /*
      * Scheduler
      */
@@ -1405,7 +1377,7 @@
         bool early = false;
     } mPowerHintSessionMode;
 
-    friend class SurfaceComposerAIDL;
+    TransactionHandler mTransactionHandler;
 };
 
 class SurfaceComposerAIDL : public gui::BnSurfaceComposer {
@@ -1457,8 +1429,6 @@
     binder::Status overrideHdrTypes(const sp<IBinder>& display,
                                     const std::vector<int32_t>& hdrTypes) override;
     binder::Status onPullAtom(int32_t atomId, gui::PullAtomData* outPullData) override;
-    binder::Status enableVSyncInjections(bool enable) override;
-    binder::Status injectVSync(int64_t when) override;
     binder::Status getLayerDebugInfo(std::vector<gui::LayerDebugInfo>* outLayers) override;
     binder::Status getColorManagement(bool* outGetColorManagement) override;
     binder::Status getCompositionPreference(gui::CompositionPreference* outPref) override;
@@ -1508,8 +1478,6 @@
             const sp<IBinder>& displayToken,
             std::optional<gui::DisplayDecorationSupport>* outSupport) override;
     binder::Status setOverrideFrameRate(int32_t uid, float frameRate) override;
-    binder::Status addTransactionTraceListener(
-            const sp<gui::ITransactionTraceListener>& listener) override;
     binder::Status getGpuContextPriority(int32_t* outPriority) override;
     binder::Status getMaxAcquiredBufferCount(int32_t* buffers) override;
     binder::Status addWindowInfosListener(
diff --git a/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp b/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
index 3e30dcb..2f1f263 100644
--- a/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
+++ b/services/surfaceflinger/SurfaceFlingerDefaultFactory.cpp
@@ -29,7 +29,6 @@
 #include "StartPropertySetThread.h"
 #include "SurfaceFlingerDefaultFactory.h"
 #include "SurfaceFlingerProperties.h"
-#include "SurfaceInterceptor.h"
 
 #include "DisplayHardware/ComposerHal.h"
 #include "FrameTimeline/FrameTimeline.h"
@@ -54,10 +53,6 @@
     }
 }
 
-sp<SurfaceInterceptor> DefaultFactory::createSurfaceInterceptor() {
-    return sp<android::impl::SurfaceInterceptor>::make();
-}
-
 sp<StartPropertySetThread> DefaultFactory::createStartPropertySetThread(
         bool timestampPropertyValue) {
     return sp<StartPropertySetThread>::make(timestampPropertyValue);
diff --git a/services/surfaceflinger/SurfaceFlingerDefaultFactory.h b/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
index 6fca402..447a02f 100644
--- a/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
+++ b/services/surfaceflinger/SurfaceFlingerDefaultFactory.h
@@ -29,7 +29,6 @@
     std::unique_ptr<HWComposer> createHWComposer(const std::string& serviceName) override;
     std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
             Fps currentRefreshRate) override;
-    sp<SurfaceInterceptor> createSurfaceInterceptor() override;
     sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override;
     sp<DisplayDevice> createDisplayDevice(DisplayDeviceCreationArgs&) override;
     sp<GraphicBuffer> createGraphicBuffer(uint32_t width, uint32_t height, PixelFormat format,
diff --git a/services/surfaceflinger/SurfaceFlingerFactory.h b/services/surfaceflinger/SurfaceFlingerFactory.h
index 6d18ade..9c4d5c8 100644
--- a/services/surfaceflinger/SurfaceFlingerFactory.h
+++ b/services/surfaceflinger/SurfaceFlingerFactory.h
@@ -40,7 +40,6 @@
 class Layer;
 class StartPropertySetThread;
 class SurfaceFlinger;
-class SurfaceInterceptor;
 class TimeStats;
 
 struct DisplayDeviceCreationArgs;
@@ -71,7 +70,6 @@
     virtual std::unique_ptr<HWComposer> createHWComposer(const std::string& serviceName) = 0;
     virtual std::unique_ptr<scheduler::VsyncConfiguration> createVsyncConfiguration(
             Fps currentRefreshRate) = 0;
-    virtual sp<SurfaceInterceptor> createSurfaceInterceptor() = 0;
 
     virtual sp<StartPropertySetThread> createStartPropertySetThread(
             bool timestampPropertyValue) = 0;
diff --git a/services/surfaceflinger/SurfaceInterceptor.cpp b/services/surfaceflinger/SurfaceInterceptor.cpp
deleted file mode 100644
index c90ae4c..0000000
--- a/services/surfaceflinger/SurfaceInterceptor.cpp
+++ /dev/null
@@ -1,711 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-#undef LOG_TAG
-#define LOG_TAG "SurfaceInterceptor"
-#define ATRACE_TAG ATRACE_TAG_GRAPHICS
-
-#include "Layer.h"
-#include "SurfaceFlinger.h"
-#include "SurfaceInterceptor.h"
-
-#include <fstream>
-
-#include <android-base/file.h>
-#include <log/log.h>
-#include <utils/Trace.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-// TODO(marissaw): add new layer state values to SurfaceInterceptor
-
-SurfaceInterceptor::~SurfaceInterceptor() = default;
-
-namespace impl {
-
-void SurfaceInterceptor::addTransactionTraceListener(
-        const sp<gui::ITransactionTraceListener>& listener) {
-    sp<IBinder> asBinder = IInterface::asBinder(listener);
-
-    std::scoped_lock lock(mListenersMutex);
-
-    asBinder->linkToDeath(sp<DeathRecipient>::fromExisting(this));
-
-    listener->onToggled(mEnabled); // notifies of current state
-
-    mTraceToggledListeners.emplace(asBinder, listener);
-}
-
-void SurfaceInterceptor::binderDied(const wp<IBinder>& who) {
-    std::scoped_lock lock(mListenersMutex);
-    mTraceToggledListeners.erase(who);
-}
-
-void SurfaceInterceptor::enable(const SortedVector<sp<Layer>>& layers,
-        const DefaultKeyedVector< wp<IBinder>, DisplayDeviceState>& displays)
-{
-    if (mEnabled) {
-        return;
-    }
-    ATRACE_CALL();
-    {
-        std::scoped_lock lock(mListenersMutex);
-        for (const auto& [_, listener] : mTraceToggledListeners) {
-            listener->onToggled(true);
-        }
-    }
-    mEnabled = true;
-    std::scoped_lock<std::mutex> protoGuard(mTraceMutex);
-    saveExistingDisplaysLocked(displays);
-    saveExistingSurfacesLocked(layers);
-}
-
-void SurfaceInterceptor::disable() {
-    if (!mEnabled) {
-        return;
-    }
-    ATRACE_CALL();
-    {
-        std::scoped_lock lock(mListenersMutex);
-        for (const auto& [_, listener] : mTraceToggledListeners) {
-            listener->onToggled(false);
-        }
-    }
-    mEnabled = false;
-    std::scoped_lock<std::mutex> protoGuard(mTraceMutex);
-    status_t err(writeProtoFileLocked());
-    ALOGE_IF(err == PERMISSION_DENIED, "Could not save the proto file! Permission denied");
-    ALOGE_IF(err == NOT_ENOUGH_DATA, "Could not save the proto file! There are missing fields");
-    mTrace.Clear();
-}
-
-bool SurfaceInterceptor::isEnabled() {
-    return mEnabled;
-}
-
-void SurfaceInterceptor::saveExistingDisplaysLocked(
-        const DefaultKeyedVector< wp<IBinder>, DisplayDeviceState>& displays)
-{
-    // Caveat: The initial snapshot does not capture the power mode of the existing displays
-    ATRACE_CALL();
-    for (size_t i = 0 ; i < displays.size() ; i++) {
-        addDisplayCreationLocked(createTraceIncrementLocked(), displays[i]);
-        addInitialDisplayStateLocked(createTraceIncrementLocked(), displays[i]);
-    }
-}
-
-void SurfaceInterceptor::saveExistingSurfacesLocked(const SortedVector<sp<Layer>>& layers) {
-    ATRACE_CALL();
-    for (const auto& l : layers) {
-        l->traverseInZOrder(LayerVector::StateSet::Drawing, [this](Layer* layer) {
-            addSurfaceCreationLocked(createTraceIncrementLocked(), sp<Layer>::fromExisting(layer));
-            addInitialSurfaceStateLocked(createTraceIncrementLocked(),
-                                         sp<Layer>::fromExisting(layer));
-        });
-    }
-}
-
-void SurfaceInterceptor::addInitialSurfaceStateLocked(Increment* increment,
-        const sp<const Layer>& layer)
-{
-    Transaction* transaction(increment->mutable_transaction());
-    const uint32_t layerFlags = layer->getTransactionFlags();
-    transaction->set_animation(layerFlags & BnSurfaceComposer::eAnimation);
-
-    const int32_t layerId(getLayerId(layer));
-    addPositionLocked(transaction, layerId, layer->mDrawingState.transform.tx(),
-                      layer->mDrawingState.transform.ty());
-    addDepthLocked(transaction, layerId, layer->mDrawingState.z);
-    addAlphaLocked(transaction, layerId, layer->mDrawingState.color.a);
-    addLayerStackLocked(transaction, layerId, layer->mDrawingState.layerStack);
-    addCropLocked(transaction, layerId, layer->mDrawingState.crop);
-    addCornerRadiusLocked(transaction, layerId, layer->mDrawingState.cornerRadius);
-    addBackgroundBlurRadiusLocked(transaction, layerId, layer->mDrawingState.backgroundBlurRadius);
-    addBlurRegionsLocked(transaction, layerId, layer->mDrawingState.blurRegions);
-    addFlagsLocked(transaction, layerId, layer->mDrawingState.flags,
-                   layer_state_t::eLayerHidden | layer_state_t::eLayerOpaque |
-                           layer_state_t::eLayerSecure);
-    addReparentLocked(transaction, layerId, getLayerIdFromWeakRef(layer->mDrawingParent));
-    addRelativeParentLocked(transaction, layerId,
-                            getLayerIdFromWeakRef(layer->mDrawingState.zOrderRelativeOf),
-                            layer->mDrawingState.z);
-    addShadowRadiusLocked(transaction, layerId, layer->mDrawingState.shadowRadius);
-    addTrustedOverlayLocked(transaction, layerId, layer->mDrawingState.isTrustedOverlay);
-}
-
-void SurfaceInterceptor::addInitialDisplayStateLocked(Increment* increment,
-        const DisplayDeviceState& display)
-{
-    Transaction* transaction(increment->mutable_transaction());
-    transaction->set_synchronous(false);
-    transaction->set_animation(false);
-
-    addDisplaySurfaceLocked(transaction, display.sequenceId, display.surface);
-    addDisplayLayerStackLocked(transaction, display.sequenceId, display.layerStack);
-    addDisplayFlagsLocked(transaction, display.sequenceId, display.flags);
-    addDisplaySizeLocked(transaction, display.sequenceId, display.width, display.height);
-    addDisplayProjectionLocked(transaction, display.sequenceId, toRotationInt(display.orientation),
-                               display.layerStackSpaceRect, display.orientedDisplaySpaceRect);
-}
-
-status_t SurfaceInterceptor::writeProtoFileLocked() {
-    ATRACE_CALL();
-    std::string output;
-
-    if (!mTrace.IsInitialized()) {
-        return NOT_ENOUGH_DATA;
-    }
-    if (!mTrace.SerializeToString(&output)) {
-        return PERMISSION_DENIED;
-    }
-    if (!android::base::WriteStringToFile(output, mOutputFileName, true)) {
-        return PERMISSION_DENIED;
-    }
-
-    return NO_ERROR;
-}
-
-const sp<const Layer> SurfaceInterceptor::getLayer(const wp<IBinder>& weakHandle) const {
-    sp<IBinder> handle = weakHandle.promote();
-    return Layer::fromHandle(handle).promote();
-}
-
-int32_t SurfaceInterceptor::getLayerId(const sp<const Layer>& layer) const {
-    return layer->sequence;
-}
-
-int32_t SurfaceInterceptor::getLayerIdFromWeakRef(const wp<const Layer>& layer) const {
-    if (layer == nullptr) {
-        return -1;
-    }
-    auto strongLayer = layer.promote();
-    return strongLayer == nullptr ? -1 : getLayerId(strongLayer);
-}
-
-int32_t SurfaceInterceptor::getLayerIdFromHandle(const sp<IBinder>& handle) const {
-    if (handle == nullptr) {
-        return -1;
-    }
-    const sp<const Layer> layer = Layer::fromHandle(handle).promote();
-    return layer == nullptr ? -1 : getLayerId(layer);
-}
-
-Increment* SurfaceInterceptor::createTraceIncrementLocked() {
-    Increment* increment(mTrace.add_increment());
-    increment->set_time_stamp(elapsedRealtimeNano());
-    return increment;
-}
-
-SurfaceChange* SurfaceInterceptor::createSurfaceChangeLocked(Transaction* transaction,
-        int32_t layerId)
-{
-    SurfaceChange* change(transaction->add_surface_change());
-    change->set_id(layerId);
-    return change;
-}
-
-DisplayChange* SurfaceInterceptor::createDisplayChangeLocked(Transaction* transaction,
-        int32_t sequenceId)
-{
-    DisplayChange* dispChange(transaction->add_display_change());
-    dispChange->set_id(sequenceId);
-    return dispChange;
-}
-
-void SurfaceInterceptor::setProtoRectLocked(Rectangle* protoRect, const Rect& rect) {
-    protoRect->set_left(rect.left);
-    protoRect->set_top(rect.top);
-    protoRect->set_right(rect.right);
-    protoRect->set_bottom(rect.bottom);
-}
-
-void SurfaceInterceptor::setTransactionOriginLocked(Transaction* transaction, int32_t pid,
-                                                    int32_t uid) {
-    Origin* origin(transaction->mutable_origin());
-    origin->set_pid(pid);
-    origin->set_uid(uid);
-}
-
-void SurfaceInterceptor::addPositionLocked(Transaction* transaction, int32_t layerId,
-        float x, float y)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    PositionChange* posChange(change->mutable_position());
-    posChange->set_x(x);
-    posChange->set_y(y);
-}
-
-void SurfaceInterceptor::addDepthLocked(Transaction* transaction, int32_t layerId,
-        uint32_t z)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    LayerChange* depthChange(change->mutable_layer());
-    depthChange->set_layer(z);
-}
-
-void SurfaceInterceptor::addSizeLocked(Transaction* transaction, int32_t layerId, uint32_t w,
-        uint32_t h)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    SizeChange* sizeChange(change->mutable_size());
-    sizeChange->set_w(w);
-    sizeChange->set_h(h);
-}
-
-void SurfaceInterceptor::addAlphaLocked(Transaction* transaction, int32_t layerId,
-        float alpha)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    AlphaChange* alphaChange(change->mutable_alpha());
-    alphaChange->set_alpha(alpha);
-}
-
-void SurfaceInterceptor::addMatrixLocked(Transaction* transaction, int32_t layerId,
-        const layer_state_t::matrix22_t& matrix)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    MatrixChange* matrixChange(change->mutable_matrix());
-    matrixChange->set_dsdx(matrix.dsdx);
-    matrixChange->set_dtdx(matrix.dtdx);
-    matrixChange->set_dsdy(matrix.dsdy);
-    matrixChange->set_dtdy(matrix.dtdy);
-}
-
-void SurfaceInterceptor::addTransparentRegionLocked(Transaction* transaction,
-        int32_t layerId, const Region& transRegion)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    TransparentRegionHintChange* transparentChange(change->mutable_transparent_region_hint());
-
-    for (const auto& rect : transRegion) {
-        Rectangle* protoRect(transparentChange->add_region());
-        setProtoRectLocked(protoRect, rect);
-    }
-}
-
-void SurfaceInterceptor::addFlagsLocked(Transaction* transaction, int32_t layerId, uint8_t flags,
-                                        uint8_t mask) {
-    // There can be multiple flags changed
-    if (mask & layer_state_t::eLayerHidden) {
-        SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-        HiddenFlagChange* flagChange(change->mutable_hidden_flag());
-        flagChange->set_hidden_flag(flags & layer_state_t::eLayerHidden);
-    }
-    if (mask & layer_state_t::eLayerOpaque) {
-        SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-        OpaqueFlagChange* flagChange(change->mutable_opaque_flag());
-        flagChange->set_opaque_flag(flags & layer_state_t::eLayerOpaque);
-    }
-    if (mask & layer_state_t::eLayerSecure) {
-        SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-        SecureFlagChange* flagChange(change->mutable_secure_flag());
-        flagChange->set_secure_flag(flags & layer_state_t::eLayerSecure);
-    }
-}
-
-void SurfaceInterceptor::addLayerStackLocked(Transaction* transaction, int32_t layerId,
-                                             ui::LayerStack layerStack) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    LayerStackChange* layerStackChange(change->mutable_layer_stack());
-    layerStackChange->set_layer_stack(layerStack.id);
-}
-
-void SurfaceInterceptor::addCropLocked(Transaction* transaction, int32_t layerId,
-        const Rect& rect)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    CropChange* cropChange(change->mutable_crop());
-    Rectangle* protoRect(cropChange->mutable_rectangle());
-    setProtoRectLocked(protoRect, rect);
-}
-
-void SurfaceInterceptor::addCornerRadiusLocked(Transaction* transaction, int32_t layerId,
-                                       float cornerRadius)
-{
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    CornerRadiusChange* cornerRadiusChange(change->mutable_corner_radius());
-    cornerRadiusChange->set_corner_radius(cornerRadius);
-}
-
-void SurfaceInterceptor::addBackgroundBlurRadiusLocked(Transaction* transaction, int32_t layerId,
-                                                       int32_t backgroundBlurRadius) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    BackgroundBlurRadiusChange* blurRadiusChange(change->mutable_background_blur_radius());
-    blurRadiusChange->set_background_blur_radius(backgroundBlurRadius);
-}
-
-void SurfaceInterceptor::addBlurRegionsLocked(Transaction* transaction, int32_t layerId,
-                                              const std::vector<BlurRegion>& blurRegions) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    BlurRegionsChange* blurRegionsChange(change->mutable_blur_regions());
-    for (const auto blurRegion : blurRegions) {
-        const auto blurRegionChange = blurRegionsChange->add_blur_regions();
-        blurRegionChange->set_blur_radius(blurRegion.blurRadius);
-        blurRegionChange->set_corner_radius_tl(blurRegion.cornerRadiusTL);
-        blurRegionChange->set_corner_radius_tr(blurRegion.cornerRadiusTR);
-        blurRegionChange->set_corner_radius_bl(blurRegion.cornerRadiusBL);
-        blurRegionChange->set_corner_radius_br(blurRegion.cornerRadiusBR);
-        blurRegionChange->set_alpha(blurRegion.alpha);
-        blurRegionChange->set_left(blurRegion.left);
-        blurRegionChange->set_top(blurRegion.top);
-        blurRegionChange->set_right(blurRegion.right);
-        blurRegionChange->set_bottom(blurRegion.bottom);
-    }
-}
-
-void SurfaceInterceptor::addReparentLocked(Transaction* transaction, int32_t layerId,
-                                           int32_t parentId) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    ReparentChange* overrideChange(change->mutable_reparent());
-    overrideChange->set_parent_id(parentId);
-}
-
-void SurfaceInterceptor::addRelativeParentLocked(Transaction* transaction, int32_t layerId,
-                                                 int32_t parentId, int z) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    RelativeParentChange* overrideChange(change->mutable_relative_parent());
-    overrideChange->set_relative_parent_id(parentId);
-    overrideChange->set_z(z);
-}
-
-void SurfaceInterceptor::addShadowRadiusLocked(Transaction* transaction, int32_t layerId,
-                                               float shadowRadius) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    ShadowRadiusChange* overrideChange(change->mutable_shadow_radius());
-    overrideChange->set_radius(shadowRadius);
-}
-
-void SurfaceInterceptor::addTrustedOverlayLocked(Transaction* transaction, int32_t layerId,
-                                                 bool isTrustedOverlay) {
-    SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
-    TrustedOverlayChange* overrideChange(change->mutable_trusted_overlay());
-    overrideChange->set_is_trusted_overlay(isTrustedOverlay);
-}
-
-void SurfaceInterceptor::addSurfaceChangesLocked(Transaction* transaction,
-        const layer_state_t& state)
-{
-    const sp<const Layer> layer(getLayer(state.surface));
-    if (layer == nullptr) {
-        ALOGE("An existing layer could not be retrieved with the surface "
-                "from the layer_state_t surface in the update transaction");
-        return;
-    }
-
-    const int32_t layerId(getLayerId(layer));
-
-    if (state.what & layer_state_t::ePositionChanged) {
-        addPositionLocked(transaction, layerId, state.x, state.y);
-    }
-    if (state.what & layer_state_t::eLayerChanged) {
-        addDepthLocked(transaction, layerId, state.z);
-    }
-    if (state.what & layer_state_t::eAlphaChanged) {
-        addAlphaLocked(transaction, layerId, state.alpha);
-    }
-    if (state.what & layer_state_t::eMatrixChanged) {
-        addMatrixLocked(transaction, layerId, state.matrix);
-    }
-    if (state.what & layer_state_t::eTransparentRegionChanged) {
-        addTransparentRegionLocked(transaction, layerId, state.transparentRegion);
-    }
-    if (state.what & layer_state_t::eFlagsChanged) {
-        addFlagsLocked(transaction, layerId, state.flags, state.mask);
-    }
-    if (state.what & layer_state_t::eLayerStackChanged) {
-        addLayerStackLocked(transaction, layerId, state.layerStack);
-    }
-    if (state.what & layer_state_t::eCropChanged) {
-        addCropLocked(transaction, layerId, state.crop);
-    }
-    if (state.what & layer_state_t::eCornerRadiusChanged) {
-        addCornerRadiusLocked(transaction, layerId, state.cornerRadius);
-    }
-    if (state.what & layer_state_t::eBackgroundBlurRadiusChanged) {
-        addBackgroundBlurRadiusLocked(transaction, layerId, state.backgroundBlurRadius);
-    }
-    if (state.what & layer_state_t::eBlurRegionsChanged) {
-        addBlurRegionsLocked(transaction, layerId, state.blurRegions);
-    }
-    if (state.what & layer_state_t::eReparent) {
-        auto parentHandle = (state.parentSurfaceControlForChild)
-                ? state.parentSurfaceControlForChild->getHandle()
-                : nullptr;
-        addReparentLocked(transaction, layerId, getLayerIdFromHandle(parentHandle));
-    }
-    if (state.what & layer_state_t::eRelativeLayerChanged) {
-        addRelativeParentLocked(transaction, layerId,
-                                getLayerIdFromHandle(
-                                        state.relativeLayerSurfaceControl->getHandle()),
-                                state.z);
-    }
-    if (state.what & layer_state_t::eShadowRadiusChanged) {
-        addShadowRadiusLocked(transaction, layerId, state.shadowRadius);
-    }
-    if (state.what & layer_state_t::eTrustedOverlayChanged) {
-        addTrustedOverlayLocked(transaction, layerId, state.isTrustedOverlay);
-    }
-    if (state.what & layer_state_t::eStretchChanged) {
-        ALOGW("SurfaceInterceptor not implemented for eStretchChanged");
-    }
-}
-
-void SurfaceInterceptor::addDisplayChangesLocked(Transaction* transaction,
-        const DisplayState& state, int32_t sequenceId)
-{
-    if (state.what & DisplayState::eSurfaceChanged) {
-        addDisplaySurfaceLocked(transaction, sequenceId, state.surface);
-    }
-    if (state.what & DisplayState::eLayerStackChanged) {
-        addDisplayLayerStackLocked(transaction, sequenceId, state.layerStack);
-    }
-    if (state.what & DisplayState::eFlagsChanged) {
-        addDisplayFlagsLocked(transaction, sequenceId, state.flags);
-    }
-    if (state.what & DisplayState::eDisplaySizeChanged) {
-        addDisplaySizeLocked(transaction, sequenceId, state.width, state.height);
-    }
-    if (state.what & DisplayState::eDisplayProjectionChanged) {
-        addDisplayProjectionLocked(transaction, sequenceId, toRotationInt(state.orientation),
-                                   state.layerStackSpaceRect, state.orientedDisplaySpaceRect);
-    }
-}
-
-void SurfaceInterceptor::addTransactionLocked(
-        Increment* increment, const Vector<ComposerState>& stateUpdates,
-        const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
-        const Vector<DisplayState>& changedDisplays, uint32_t transactionFlags, int originPid,
-        int originUid, uint64_t transactionId) {
-    Transaction* transaction(increment->mutable_transaction());
-    transaction->set_animation(transactionFlags & BnSurfaceComposer::eAnimation);
-    setTransactionOriginLocked(transaction, originPid, originUid);
-    transaction->set_id(transactionId);
-    for (const auto& compState: stateUpdates) {
-        addSurfaceChangesLocked(transaction, compState.state);
-    }
-    for (const auto& disp: changedDisplays) {
-        ssize_t dpyIdx = displays.indexOfKey(disp.token);
-        if (dpyIdx >= 0) {
-            const DisplayDeviceState& dispState(displays.valueAt(dpyIdx));
-            addDisplayChangesLocked(transaction, disp, dispState.sequenceId);
-        }
-    }
-}
-
-void SurfaceInterceptor::addSurfaceCreationLocked(Increment* increment,
-        const sp<const Layer>& layer)
-{
-    SurfaceCreation* creation(increment->mutable_surface_creation());
-    creation->set_id(getLayerId(layer));
-    creation->set_name(layer->getName());
-}
-
-void SurfaceInterceptor::addSurfaceDeletionLocked(Increment* increment,
-        const sp<const Layer>& layer)
-{
-    SurfaceDeletion* deletion(increment->mutable_surface_deletion());
-    deletion->set_id(getLayerId(layer));
-}
-
-void SurfaceInterceptor::addBufferUpdateLocked(Increment* increment, int32_t layerId,
-        uint32_t width, uint32_t height, uint64_t frameNumber)
-{
-    BufferUpdate* update(increment->mutable_buffer_update());
-    update->set_id(layerId);
-    update->set_w(width);
-    update->set_h(height);
-    update->set_frame_number(frameNumber);
-}
-
-void SurfaceInterceptor::addVSyncUpdateLocked(Increment* increment, nsecs_t timestamp) {
-    VSyncEvent* event(increment->mutable_vsync_event());
-    event->set_when(timestamp);
-}
-
-void SurfaceInterceptor::addDisplaySurfaceLocked(Transaction* transaction, int32_t sequenceId,
-        const sp<const IGraphicBufferProducer>& surface)
-{
-    if (surface == nullptr) {
-        return;
-    }
-    uint64_t bufferQueueId = 0;
-    status_t err(surface->getUniqueId(&bufferQueueId));
-    if (err == NO_ERROR) {
-        DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
-        DispSurfaceChange* surfaceChange(dispChange->mutable_surface());
-        surfaceChange->set_buffer_queue_id(bufferQueueId);
-        surfaceChange->set_buffer_queue_name(surface->getConsumerName().string());
-    }
-    else {
-        ALOGE("invalid graphic buffer producer received while tracing a display change (%s)",
-                strerror(-err));
-    }
-}
-
-void SurfaceInterceptor::addDisplayLayerStackLocked(Transaction* transaction, int32_t sequenceId,
-                                                    ui::LayerStack layerStack) {
-    DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
-    LayerStackChange* layerStackChange(dispChange->mutable_layer_stack());
-    layerStackChange->set_layer_stack(layerStack.id);
-}
-
-void SurfaceInterceptor::addDisplayFlagsLocked(Transaction* transaction, int32_t sequenceId,
-                                               uint32_t flags) {
-    DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
-    DisplayFlagsChange* flagsChange(dispChange->mutable_flags());
-    flagsChange->set_flags(flags);
-}
-
-void SurfaceInterceptor::addDisplaySizeLocked(Transaction* transaction, int32_t sequenceId,
-        uint32_t w, uint32_t h)
-{
-    DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
-    SizeChange* sizeChange(dispChange->mutable_size());
-    sizeChange->set_w(w);
-    sizeChange->set_h(h);
-}
-
-void SurfaceInterceptor::addDisplayProjectionLocked(Transaction* transaction,
-        int32_t sequenceId, int32_t orientation, const Rect& viewport, const Rect& frame)
-{
-    DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
-    ProjectionChange* projectionChange(dispChange->mutable_projection());
-    projectionChange->set_orientation(orientation);
-    Rectangle* viewportRect(projectionChange->mutable_viewport());
-    setProtoRectLocked(viewportRect, viewport);
-    Rectangle* frameRect(projectionChange->mutable_frame());
-    setProtoRectLocked(frameRect, frame);
-}
-
-void SurfaceInterceptor::addDisplayCreationLocked(Increment* increment,
-        const DisplayDeviceState& info)
-{
-    DisplayCreation* creation(increment->mutable_display_creation());
-    creation->set_id(info.sequenceId);
-    creation->set_name(info.displayName);
-    creation->set_is_secure(info.isSecure);
-    if (info.physical) {
-        creation->set_display_id(info.physical->id.value);
-    }
-}
-
-void SurfaceInterceptor::addDisplayDeletionLocked(Increment* increment, int32_t sequenceId) {
-    DisplayDeletion* deletion(increment->mutable_display_deletion());
-    deletion->set_id(sequenceId);
-}
-
-void SurfaceInterceptor::addPowerModeUpdateLocked(Increment* increment, int32_t sequenceId,
-        int32_t mode)
-{
-    PowerModeUpdate* powerModeUpdate(increment->mutable_power_mode_update());
-    powerModeUpdate->set_id(sequenceId);
-    powerModeUpdate->set_mode(mode);
-}
-
-void SurfaceInterceptor::saveTransaction(
-        const Vector<ComposerState>& stateUpdates,
-        const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
-        const Vector<DisplayState>& changedDisplays, uint32_t flags, int originPid, int originUid,
-        uint64_t transactionId) {
-    if (!mEnabled || (stateUpdates.size() <= 0 && changedDisplays.size() <= 0)) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addTransactionLocked(createTraceIncrementLocked(), stateUpdates, displays, changedDisplays,
-                         flags, originPid, originUid, transactionId);
-}
-
-void SurfaceInterceptor::saveSurfaceCreation(const sp<const Layer>& layer) {
-    if (!mEnabled || layer == nullptr) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addSurfaceCreationLocked(createTraceIncrementLocked(), layer);
-}
-
-void SurfaceInterceptor::saveSurfaceDeletion(const sp<const Layer>& layer) {
-    if (!mEnabled || layer == nullptr) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addSurfaceDeletionLocked(createTraceIncrementLocked(), layer);
-}
-
-/**
- * Here we pass the layer by ID instead of by sp<> since this is called without
- * holding the state-lock from a Binder thread. If we required the caller
- * to pass 'this' by sp<> the temporary sp<> constructed could end up
- * being the last reference and we might accidentally destroy the Layer
- * from this binder thread.
- */
-void SurfaceInterceptor::saveBufferUpdate(int32_t layerId, uint32_t width,
-        uint32_t height, uint64_t frameNumber)
-{
-    if (!mEnabled) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addBufferUpdateLocked(createTraceIncrementLocked(), layerId, width, height, frameNumber);
-}
-
-void SurfaceInterceptor::saveVSyncEvent(nsecs_t timestamp) {
-    if (!mEnabled) {
-        return;
-    }
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addVSyncUpdateLocked(createTraceIncrementLocked(), timestamp);
-}
-
-void SurfaceInterceptor::saveDisplayCreation(const DisplayDeviceState& info) {
-    if (!mEnabled) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addDisplayCreationLocked(createTraceIncrementLocked(), info);
-}
-
-void SurfaceInterceptor::saveDisplayDeletion(int32_t sequenceId) {
-    if (!mEnabled) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addDisplayDeletionLocked(createTraceIncrementLocked(), sequenceId);
-}
-
-void SurfaceInterceptor::savePowerModeUpdate(int32_t sequenceId, int32_t mode) {
-    if (!mEnabled) {
-        return;
-    }
-    ATRACE_CALL();
-    std::lock_guard<std::mutex> protoGuard(mTraceMutex);
-    addPowerModeUpdateLocked(createTraceIncrementLocked(), sequenceId, mode);
-}
-
-} // namespace impl
-} // namespace android
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/SurfaceInterceptor.h b/services/surfaceflinger/SurfaceInterceptor.h
deleted file mode 100644
index 970c3e5..0000000
--- a/services/surfaceflinger/SurfaceInterceptor.h
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * Copyright 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SURFACEINTERCEPTOR_H
-#define ANDROID_SURFACEINTERCEPTOR_H
-
-#include <frameworks/native/cmds/surfacereplayer/proto/src/trace.pb.h>
-
-#include <mutex>
-
-#include <binder/IBinder.h>
-
-#include <gui/LayerState.h>
-
-#include <utils/KeyedVector.h>
-#include <utils/SortedVector.h>
-#include <utils/StrongPointer.h>
-#include <utils/Vector.h>
-
-#include "DisplayDevice.h"
-
-namespace android {
-
-class BufferItem;
-class Layer;
-class SurfaceFlinger;
-struct ComposerState;
-struct DisplayDeviceState;
-struct DisplayState;
-struct layer_state_t;
-using Transaction = surfaceflinger::Transaction;
-using Trace = surfaceflinger::Trace;
-using Rectangle = surfaceflinger::Rectangle;
-using SurfaceChange = surfaceflinger::SurfaceChange;
-using Increment = surfaceflinger::Increment;
-using DisplayChange = surfaceflinger::DisplayChange;
-
-constexpr auto DEFAULT_FILENAME = "/data/misc/wmtrace/transaction_trace.winscope";
-
-class SurfaceInterceptor : public IBinder::DeathRecipient {
-public:
-    virtual ~SurfaceInterceptor();
-
-    // Both vectors are used to capture the current state of SF as the initial snapshot in the trace
-    virtual void enable(const SortedVector<sp<Layer>>& layers,
-                        const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays) = 0;
-    virtual void disable() = 0;
-    virtual bool isEnabled() = 0;
-
-    virtual void addTransactionTraceListener(
-            const sp<gui::ITransactionTraceListener>& listener) = 0;
-    virtual void binderDied(const wp<IBinder>& who) = 0;
-
-    // Intercept display and surface transactions
-    virtual void saveTransaction(
-            const Vector<ComposerState>& stateUpdates,
-            const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
-            const Vector<DisplayState>& changedDisplays, uint32_t flags, int originPid,
-            int originUid, uint64_t transactionId) = 0;
-
-    // Intercept surface data
-    virtual void saveSurfaceCreation(const sp<const Layer>& layer) = 0;
-    virtual void saveSurfaceDeletion(const sp<const Layer>& layer) = 0;
-    virtual void saveBufferUpdate(int32_t layerId, uint32_t width, uint32_t height,
-                                  uint64_t frameNumber) = 0;
-
-    // Intercept display data
-    virtual void saveDisplayCreation(const DisplayDeviceState& info) = 0;
-    virtual void saveDisplayDeletion(int32_t sequenceId) = 0;
-    virtual void savePowerModeUpdate(int32_t sequenceId, int32_t mode) = 0;
-    virtual void saveVSyncEvent(nsecs_t timestamp) = 0;
-};
-
-namespace impl {
-
-/*
- * SurfaceInterceptor intercepts and stores incoming streams of window
- * properties on SurfaceFlinger.
- */
-class SurfaceInterceptor final : public android::SurfaceInterceptor {
-public:
-    SurfaceInterceptor() = default;
-    ~SurfaceInterceptor() override = default;
-
-    // Both vectors are used to capture the current state of SF as the initial snapshot in the trace
-    void enable(const SortedVector<sp<Layer>>& layers,
-                const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays) override;
-    void disable() override;
-    bool isEnabled() override;
-
-    void addTransactionTraceListener(const sp<gui::ITransactionTraceListener>& listener) override;
-    void binderDied(const wp<IBinder>& who) override;
-
-    // Intercept display and surface transactions
-    void saveTransaction(const Vector<ComposerState>& stateUpdates,
-                         const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
-                         const Vector<DisplayState>& changedDisplays, uint32_t flags, int originPid,
-                         int originUid, uint64_t transactionId) override;
-
-    // Intercept surface data
-    void saveSurfaceCreation(const sp<const Layer>& layer) override;
-    void saveSurfaceDeletion(const sp<const Layer>& layer) override;
-    void saveBufferUpdate(int32_t layerId, uint32_t width, uint32_t height,
-                          uint64_t frameNumber) override;
-
-    // Intercept display data
-    void saveDisplayCreation(const DisplayDeviceState& info) override;
-    void saveDisplayDeletion(int32_t sequenceId) override;
-    void savePowerModeUpdate(int32_t sequenceId, int32_t mode) override;
-    void saveVSyncEvent(nsecs_t timestamp) override;
-
-private:
-    // The creation increments of Surfaces and Displays do not contain enough information to capture
-    // the initial state of each object, so a transaction with all of the missing properties is
-    // performed at the initial snapshot for each display and surface.
-    void saveExistingDisplaysLocked(
-            const DefaultKeyedVector< wp<IBinder>, DisplayDeviceState>& displays);
-    void saveExistingSurfacesLocked(const SortedVector<sp<Layer>>& layers);
-    void addInitialSurfaceStateLocked(Increment* increment, const sp<const Layer>& layer);
-    void addInitialDisplayStateLocked(Increment* increment, const DisplayDeviceState& display);
-
-    status_t writeProtoFileLocked();
-    const sp<const Layer> getLayer(const wp<IBinder>& weakHandle) const;
-    int32_t getLayerId(const sp<const Layer>& layer) const;
-    int32_t getLayerIdFromWeakRef(const wp<const Layer>& layer) const;
-    int32_t getLayerIdFromHandle(const sp<IBinder>& weakHandle) const;
-
-    Increment* createTraceIncrementLocked();
-    void addSurfaceCreationLocked(Increment* increment, const sp<const Layer>& layer);
-    void addSurfaceDeletionLocked(Increment* increment, const sp<const Layer>& layer);
-    void addBufferUpdateLocked(Increment* increment, int32_t layerId, uint32_t width,
-            uint32_t height, uint64_t frameNumber);
-    void addVSyncUpdateLocked(Increment* increment, nsecs_t timestamp);
-    void addDisplayCreationLocked(Increment* increment, const DisplayDeviceState& info);
-    void addDisplayDeletionLocked(Increment* increment, int32_t sequenceId);
-    void addPowerModeUpdateLocked(Increment* increment, int32_t sequenceId, int32_t mode);
-
-    // Add surface transactions to the trace
-    SurfaceChange* createSurfaceChangeLocked(Transaction* transaction, int32_t layerId);
-    void setProtoRectLocked(Rectangle* protoRect, const Rect& rect);
-    void addPositionLocked(Transaction* transaction, int32_t layerId, float x, float y);
-    void addDepthLocked(Transaction* transaction, int32_t layerId, uint32_t z);
-    void addSizeLocked(Transaction* transaction, int32_t layerId, uint32_t w, uint32_t h);
-    void addAlphaLocked(Transaction* transaction, int32_t layerId, float alpha);
-    void addMatrixLocked(Transaction* transaction, int32_t layerId,
-            const layer_state_t::matrix22_t& matrix);
-    void addTransparentRegionLocked(Transaction* transaction, int32_t layerId,
-            const Region& transRegion);
-    void addFlagsLocked(Transaction* transaction, int32_t layerId, uint8_t flags, uint8_t mask);
-    void addLayerStackLocked(Transaction* transaction, int32_t layerId, ui::LayerStack);
-    void addCropLocked(Transaction* transaction, int32_t layerId, const Rect& rect);
-    void addCornerRadiusLocked(Transaction* transaction, int32_t layerId, float cornerRadius);
-    void addBackgroundBlurRadiusLocked(Transaction* transaction, int32_t layerId,
-                                       int32_t backgroundBlurRadius);
-    void addBlurRegionsLocked(Transaction* transaction, int32_t layerId,
-                              const std::vector<BlurRegion>& effectRegions);
-    void addSurfaceChangesLocked(Transaction* transaction, const layer_state_t& state);
-    void addTransactionLocked(Increment* increment, const Vector<ComposerState>& stateUpdates,
-                              const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
-                              const Vector<DisplayState>& changedDisplays,
-                              uint32_t transactionFlags, int originPid, int originUid,
-                              uint64_t transactionId);
-    void addReparentLocked(Transaction* transaction, int32_t layerId, int32_t parentId);
-    void addRelativeParentLocked(Transaction* transaction, int32_t layerId, int32_t parentId,
-                                 int z);
-    void addShadowRadiusLocked(Transaction* transaction, int32_t layerId, float shadowRadius);
-    void addTrustedOverlayLocked(Transaction* transaction, int32_t layerId, bool isTrustedOverlay);
-
-    // Add display transactions to the trace
-    DisplayChange* createDisplayChangeLocked(Transaction* transaction, int32_t sequenceId);
-    void addDisplaySurfaceLocked(Transaction* transaction, int32_t sequenceId,
-            const sp<const IGraphicBufferProducer>& surface);
-    void addDisplayLayerStackLocked(Transaction* transaction, int32_t sequenceId, ui::LayerStack);
-    void addDisplayFlagsLocked(Transaction* transaction, int32_t sequenceId, uint32_t flags);
-    void addDisplaySizeLocked(Transaction* transaction, int32_t sequenceId, uint32_t w,
-            uint32_t h);
-    void addDisplayProjectionLocked(Transaction* transaction, int32_t sequenceId,
-            int32_t orientation, const Rect& viewport, const Rect& frame);
-    void addDisplayChangesLocked(Transaction* transaction,
-            const DisplayState& state, int32_t sequenceId);
-
-    // Add transaction origin to trace
-    void setTransactionOriginLocked(Transaction* transaction, int32_t pid, int32_t uid);
-
-    bool mEnabled {false};
-    std::string mOutputFileName {DEFAULT_FILENAME};
-    std::mutex mTraceMutex {};
-    Trace mTrace {};
-    std::mutex mListenersMutex;
-    std::map<wp<IBinder>, sp<gui::ITransactionTraceListener>> mTraceToggledListeners
-            GUARDED_BY(mListenersMutex);
-};
-
-} // namespace impl
-
-} // namespace android
-
-#endif // ANDROID_SURFACEINTERCEPTOR_H
diff --git a/services/surfaceflinger/Tracing/TransactionProtoParser.cpp b/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
index dcc529e..267f3d0 100644
--- a/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
+++ b/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
@@ -452,7 +452,7 @@
             layer.parentSurfaceControlForChild =
                     sp<SurfaceControl>::make(SurfaceComposerClient::getDefault(),
                                              mMapper->getLayerHandle(static_cast<int32_t>(layerId)),
-                                             static_cast<int32_t>(layerId));
+                                             static_cast<int32_t>(layerId), "");
         }
     }
     if (proto.what() & layer_state_t::eRelativeLayerChanged) {
@@ -463,7 +463,7 @@
             layer.relativeLayerSurfaceControl =
                     sp<SurfaceControl>::make(SurfaceComposerClient::getDefault(),
                                              mMapper->getLayerHandle(static_cast<int32_t>(layerId)),
-                                             static_cast<int32_t>(layerId));
+                                             static_cast<int32_t>(layerId), "");
         }
         layer.z = proto.z();
     }
diff --git a/services/surfaceflinger/Tracing/TransactionProtoParser.h b/services/surfaceflinger/Tracing/TransactionProtoParser.h
index 872a901..2232bb9 100644
--- a/services/surfaceflinger/Tracing/TransactionProtoParser.h
+++ b/services/surfaceflinger/Tracing/TransactionProtoParser.h
@@ -15,6 +15,7 @@
  */
 #pragma once
 
+#include <gui/fake/BufferData.h>
 #include <layerproto/TransactionProto.h>
 #include <utils/RefBase.h>
 
@@ -43,35 +44,6 @@
     TracingLayerCreationArgs args;
 };
 
-// Class which exposes buffer properties from BufferData without holding on to the actual buffer
-// handle.
-class BufferDataStub : public BufferData {
-public:
-    BufferDataStub(uint64_t bufferId, uint32_t width, uint32_t height, int32_t pixelFormat,
-                   uint64_t outUsage)
-          : mBufferId(bufferId),
-            mWidth(width),
-            mHeight(height),
-            mPixelFormat(pixelFormat),
-            mOutUsage(outUsage) {}
-    bool hasBuffer() const override { return mBufferId != 0; }
-    bool hasSameBuffer(const BufferData& other) const override {
-        return getId() == other.getId() && frameNumber == other.frameNumber;
-    }
-    uint32_t getWidth() const override { return mWidth; }
-    uint32_t getHeight() const override { return mHeight; }
-    uint64_t getId() const override { return mBufferId; }
-    PixelFormat getPixelFormat() const override { return mPixelFormat; }
-    uint64_t getUsage() const override { return mOutUsage; }
-
-private:
-    uint64_t mBufferId;
-    uint32_t mWidth;
-    uint32_t mHeight;
-    int32_t mPixelFormat;
-    uint64_t mOutUsage;
-};
-
 class TransactionProtoParser {
 public:
     // Utility class to map handles to ids and buffers to buffer properties without pulling
@@ -87,7 +59,7 @@
         virtual std::shared_ptr<BufferData> getGraphicData(uint64_t bufferId, uint32_t width,
                                                            uint32_t height, int32_t pixelFormat,
                                                            uint64_t usage) const {
-            return std::make_shared<BufferDataStub>(bufferId, width, height, pixelFormat, usage);
+            return std::make_shared<fake::BufferData>(bufferId, width, height, pixelFormat, usage);
         }
         virtual void getGraphicBufferPropertiesFromCache(client_cache_t /* cachedBuffer */,
                                                          uint64_t* /* outBufferId */,
diff --git a/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp b/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
index 8817178..d0364f2 100644
--- a/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
+++ b/services/surfaceflinger/Tracing/tools/LayerTraceGenerator.cpp
@@ -47,10 +47,6 @@
         return std::make_unique<scheduler::FakePhaseOffsets>();
     }
 
-    sp<SurfaceInterceptor> createSurfaceInterceptor() override {
-        return sp<android::impl::SurfaceInterceptor>::make();
-    }
-
     sp<StartPropertySetThread> createStartPropertySetThread(
             bool /* timestampPropertyValue */) override {
         return sp<StartPropertySetThread>();
@@ -213,8 +209,7 @@
             TracingLayerCreationArgs tracingArgs;
             parser.fromProto(entry.added_layers(j), tracingArgs);
 
-            sp<IBinder> outHandle;
-            int32_t outLayerId;
+            gui::CreateSurfaceResult outResult;
             LayerCreationArgs args(mFlinger.flinger(), nullptr /* client */, tracingArgs.name,
                                    tracingArgs.flags, LayerMetadata());
             args.sequence = std::make_optional<int32_t>(tracingArgs.layerId);
@@ -228,16 +223,15 @@
                 } else if (tracingArgs.parentId != -1) {
                     parentHandle = dataMapper->getLayerHandle(tracingArgs.parentId);
                 }
-                mFlinger.createLayer(args, &outHandle, parentHandle, &outLayerId,
-                                     nullptr /* parentLayer */, nullptr /* outTransformHint */);
+                mFlinger.createLayer(args, parentHandle, outResult);
             } else {
                 sp<IBinder> mirrorFromHandle = dataMapper->getLayerHandle(tracingArgs.mirrorFromId);
-                mFlinger.mirrorLayer(args, mirrorFromHandle, &outHandle, &outLayerId);
+                mFlinger.mirrorLayer(args, mirrorFromHandle, outResult);
             }
-            LOG_ALWAYS_FATAL_IF(outLayerId != tracingArgs.layerId,
+            LOG_ALWAYS_FATAL_IF(outResult.layerId != tracingArgs.layerId,
                                 "Could not create layer expected:%d actual:%d", tracingArgs.layerId,
-                                outLayerId);
-            dataMapper->mLayerHandles[tracingArgs.layerId] = outHandle;
+                                outResult.layerId);
+            dataMapper->mLayerHandles[tracingArgs.layerId] = outResult.handle;
         }
 
         for (int j = 0; j < entry.transactions_size(); j++) {
diff --git a/services/surfaceflinger/TransactionHandler.cpp b/services/surfaceflinger/TransactionHandler.cpp
new file mode 100644
index 0000000..6c6a487
--- /dev/null
+++ b/services/surfaceflinger/TransactionHandler.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+#undef LOG_TAG
+#define LOG_TAG "TransactionHandler"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+#include <cutils/trace.h>
+#include <utils/Log.h>
+
+#include "TransactionHandler.h"
+
+namespace android {
+
+void TransactionHandler::queueTransaction(TransactionState&& state) {
+    mLocklessTransactionQueue.push(std::move(state));
+    mPendingTransactionCount.fetch_add(1);
+    ATRACE_INT("TransactionQueue", static_cast<int>(mPendingTransactionCount.load()));
+}
+
+std::vector<TransactionState> TransactionHandler::flushTransactions() {
+    while (!mLocklessTransactionQueue.isEmpty()) {
+        auto maybeTransaction = mLocklessTransactionQueue.pop();
+        if (!maybeTransaction.has_value()) {
+            break;
+        }
+        auto transaction = maybeTransaction.value();
+        mPendingTransactionQueues[transaction.applyToken].emplace(std::move(transaction));
+    }
+
+    // Collect transaction that are ready to be applied.
+    std::vector<TransactionState> transactions;
+    TransactionFlushState flushState;
+    flushState.queueProcessTime = systemTime();
+    // Transactions with a buffer pending on a barrier may be on a different applyToken
+    // than the transaction which satisfies our barrier. In fact this is the exact use case
+    // that the primitive is designed for. This means we may first process
+    // the barrier dependent transaction, determine it ineligible to complete
+    // and then satisfy in a later inner iteration of flushPendingTransactionQueues.
+    // The barrier dependent transaction was eligible to be presented in this frame
+    // but we would have prevented it without case. To fix this we continually
+    // loop through flushPendingTransactionQueues until we perform an iteration
+    // where the number of transactionsPendingBarrier doesn't change. This way
+    // we can continue to resolve dependency chains of barriers as far as possible.
+    int lastTransactionsPendingBarrier = 0;
+    int transactionsPendingBarrier = 0;
+    do {
+        lastTransactionsPendingBarrier = transactionsPendingBarrier;
+        // Collect transactions that are ready to be applied.
+        transactionsPendingBarrier = flushPendingTransactionQueues(transactions, flushState);
+    } while (lastTransactionsPendingBarrier != transactionsPendingBarrier);
+
+    mPendingTransactionCount.fetch_sub(transactions.size());
+    ATRACE_INT("TransactionQueue", static_cast<int>(mPendingTransactionCount.load()));
+    return transactions;
+}
+
+TransactionHandler::TransactionReadiness TransactionHandler::applyFilters(
+        TransactionFlushState& flushState) {
+    auto ready = TransactionReadiness::Ready;
+    for (auto& filter : mTransactionReadyFilters) {
+        auto perFilterReady = filter(flushState);
+        switch (perFilterReady) {
+            case TransactionReadiness::NotReady:
+            case TransactionReadiness::NotReadyBarrier:
+                return perFilterReady;
+
+            case TransactionReadiness::ReadyUnsignaled:
+            case TransactionReadiness::ReadyUnsignaledSingle:
+                // If one of the filters allows latching an unsignaled buffer, latch this ready
+                // state.
+                ready = perFilterReady;
+                break;
+            case TransactionReadiness::Ready:
+                continue;
+        }
+    }
+    return ready;
+}
+
+int TransactionHandler::flushPendingTransactionQueues(std::vector<TransactionState>& transactions,
+                                                      TransactionFlushState& flushState) {
+    int transactionsPendingBarrier = 0;
+    auto it = mPendingTransactionQueues.begin();
+    while (it != mPendingTransactionQueues.end()) {
+        auto& queue = it->second;
+        IBinder* queueToken = it->first.get();
+
+        // if we have already flushed a transaction with an unsignaled buffer then stop queue
+        // processing
+        if (std::find(flushState.queuesWithUnsignaledBuffers.begin(),
+                      flushState.queuesWithUnsignaledBuffers.end(),
+                      queueToken) != flushState.queuesWithUnsignaledBuffers.end()) {
+            continue;
+        }
+
+        while (!queue.empty()) {
+            auto& transaction = queue.front();
+            flushState.transaction = &transaction;
+            auto ready = applyFilters(flushState);
+            if (ready == TransactionReadiness::NotReadyBarrier) {
+                transactionsPendingBarrier++;
+                break;
+            } else if (ready == TransactionReadiness::NotReady) {
+                break;
+            }
+
+            // Transaction is ready move it from the pending queue.
+            flushState.firstTransaction = false;
+            removeFromStalledTransactions(transaction.id);
+            transactions.emplace_back(std::move(transaction));
+            queue.pop();
+
+            // If the buffer is unsignaled, then we don't want to signal other transactions using
+            // the buffer as a barrier.
+            auto& readyToApplyTransaction = transactions.back();
+            if (ready == TransactionReadiness::Ready) {
+                readyToApplyTransaction.traverseStatesWithBuffers([&](const layer_state_t& state) {
+                    const bool frameNumberChanged = state.bufferData->flags.test(
+                            BufferData::BufferDataChange::frameNumberChanged);
+                    if (frameNumberChanged) {
+                        flushState.bufferLayersReadyToPresent
+                                .emplace_or_replace(state.surface.get(),
+                                                    state.bufferData->frameNumber);
+                    } else {
+                        // Barrier function only used for BBQ which always includes a frame number.
+                        // This value only used for barrier logic.
+                        flushState.bufferLayersReadyToPresent
+                                .emplace_or_replace(state.surface.get(),
+                                                    std::numeric_limits<uint64_t>::max());
+                    }
+                });
+            } else if (ready == TransactionReadiness::ReadyUnsignaledSingle) {
+                // Track queues with a flushed unsingaled buffer.
+                flushState.queuesWithUnsignaledBuffers.emplace_back(queueToken);
+                break;
+            }
+        }
+
+        if (queue.empty()) {
+            it = mPendingTransactionQueues.erase(it);
+        } else {
+            it = std::next(it, 1);
+        }
+    }
+    return transactionsPendingBarrier;
+}
+
+void TransactionHandler::addTransactionReadyFilter(TransactionFilter&& filter) {
+    mTransactionReadyFilters.emplace_back(std::move(filter));
+}
+
+bool TransactionHandler::hasPendingTransactions() {
+    return !mPendingTransactionQueues.empty() || !mLocklessTransactionQueue.isEmpty();
+}
+
+void TransactionHandler::onTransactionQueueStalled(const TransactionState& transaction,
+                                                   sp<ITransactionCompletedListener>& listener) {
+    if (std::find(mStalledTransactions.begin(), mStalledTransactions.end(), transaction.id) !=
+        mStalledTransactions.end()) {
+        return;
+    }
+
+    mStalledTransactions.push_back(transaction.id);
+    listener->onTransactionQueueStalled();
+}
+
+void TransactionHandler::removeFromStalledTransactions(uint64_t id) {
+    auto it = std::find(mStalledTransactions.begin(), mStalledTransactions.end(), id);
+    if (it != mStalledTransactions.end()) {
+        mStalledTransactions.erase(it);
+    }
+}
+} // namespace android
\ No newline at end of file
diff --git a/services/surfaceflinger/TransactionHandler.h b/services/surfaceflinger/TransactionHandler.h
new file mode 100644
index 0000000..237b48d
--- /dev/null
+++ b/services/surfaceflinger/TransactionHandler.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <semaphore.h>
+#include <cstdint>
+#include <mutex>
+#include <queue>
+#include <thread>
+#include <vector>
+
+#include <LocklessQueue.h>
+#include <TransactionState.h>
+#include <android-base/thread_annotations.h>
+#include <ftl/small_map.h>
+#include <ftl/small_vector.h>
+
+namespace android {
+class TransactionHandler {
+public:
+    struct TransactionFlushState {
+        const TransactionState* transaction;
+        bool firstTransaction = true;
+        nsecs_t queueProcessTime = 0;
+        // Layer handles that have transactions with buffers that are ready to be applied.
+        ftl::SmallMap<IBinder* /* binder address */, uint64_t /* framenumber */, 15>
+                bufferLayersReadyToPresent = {};
+        ftl::SmallVector<IBinder* /* queueToken */, 15> queuesWithUnsignaledBuffers;
+    };
+    enum class TransactionReadiness {
+        NotReady,
+        NotReadyBarrier,
+        Ready,
+        ReadyUnsignaled,
+        ReadyUnsignaledSingle,
+    };
+    using TransactionFilter = std::function<TransactionReadiness(const TransactionFlushState&)>;
+
+    bool hasPendingTransactions();
+    std::vector<TransactionState> flushTransactions();
+    void addTransactionReadyFilter(TransactionFilter&&);
+    void queueTransaction(TransactionState&&);
+    void onTransactionQueueStalled(const TransactionState&, sp<ITransactionCompletedListener>&);
+    void removeFromStalledTransactions(uint64_t transactionId);
+
+private:
+    // For unit tests
+    friend class TestableSurfaceFlinger;
+
+    int flushPendingTransactionQueues(std::vector<TransactionState>&, TransactionFlushState&);
+    TransactionReadiness applyFilters(TransactionFlushState&);
+    std::unordered_map<sp<IBinder>, std::queue<TransactionState>, IListenerHash>
+            mPendingTransactionQueues;
+    LocklessQueue<TransactionState> mLocklessTransactionQueue;
+    std::atomic<size_t> mPendingTransactionCount = 0;
+    ftl::SmallVector<TransactionFilter, 2> mTransactionReadyFilters;
+    std::vector<uint64_t> mStalledTransactions;
+};
+
+} // namespace android
diff --git a/services/surfaceflinger/TransactionState.h b/services/surfaceflinger/TransactionState.h
index 95eb503..3cbfe81 100644
--- a/services/surfaceflinger/TransactionState.h
+++ b/services/surfaceflinger/TransactionState.h
@@ -64,6 +64,15 @@
         }
     }
 
+    template <typename Visitor>
+    void traverseStatesWithBuffersWhileTrue(Visitor&& visitor) const {
+        for (const auto& [state] : states) {
+            if (state.hasBufferChanges() && state.hasValidBuffer() && state.surface) {
+                if (!visitor(state)) return;
+            }
+        }
+    }
+
     // TODO(b/185535769): Remove FrameHint. Instead, reset the idle timer (of the relevant physical
     // display) on the main thread if commit leads to composite. Then, RefreshRateOverlay should be
     // able to setFrameRate once, rather than for each transaction.
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp
index fae9165..f8fc6f5 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_displayhardware_fuzzer.cpp
@@ -116,7 +116,7 @@
 class DisplayHardwareFuzzer {
 public:
     DisplayHardwareFuzzer(const uint8_t* data, size_t size) : mFdp(data, size) {
-        mPhysicalDisplayId = SurfaceComposerClient::getInternalDisplayId().value_or(
+        mPhysicalDisplayId = TestableSurfaceFlinger::getFirstDisplayId().value_or(
                 PhysicalDisplayId::fromPort(mFdp.ConsumeIntegral<uint8_t>()));
     };
     void process();
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
index c96520d..ed2fe23 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
@@ -46,7 +46,6 @@
 #include "StartPropertySetThread.h"
 #include "SurfaceFlinger.h"
 #include "SurfaceFlingerDefaultFactory.h"
-#include "SurfaceInterceptor.h"
 #include "ThreadContext.h"
 #include "TimeStats/TimeStats.h"
 
@@ -60,7 +59,6 @@
 #include "tests/unittests/mock/MockFrameTimeline.h"
 #include "tests/unittests/mock/MockFrameTracer.h"
 #include "tests/unittests/mock/MockNativeWindowSurface.h"
-#include "tests/unittests/mock/MockSurfaceInterceptor.h"
 #include "tests/unittests/mock/MockTimeStats.h"
 #include "tests/unittests/mock/MockVSyncTracker.h"
 #include "tests/unittests/mock/MockVsyncController.h"
@@ -316,10 +314,6 @@
         return nullptr;
     }
 
-    sp<SurfaceInterceptor> createSurfaceInterceptor() override {
-        return sp<android::impl::SurfaceInterceptor>::make();
-    }
-
     sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override {
         return sp<StartPropertySetThread>::make(timestampPropertyValue);
     }
@@ -522,6 +516,13 @@
         mFlinger->setVsyncConfig(vsyncConfig, fdp->ConsumeIntegral<nsecs_t>());
     }
 
+    // TODO(b/248317436): extend to cover all displays for multi-display devices
+    static std::optional<PhysicalDisplayId> getFirstDisplayId() {
+        std::vector<PhysicalDisplayId> ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        if (ids.empty()) return {};
+        return ids.front();
+    }
+
     sp<IBinder> fuzzBoot(FuzzedDataProvider *fdp) {
         mFlinger->callingThreadHasUnscopedSurfaceFlingerAccess(fdp->ConsumeBool());
         const sp<Client> client = sp<Client>::make(mFlinger);
@@ -533,9 +534,8 @@
         ui::PixelFormat pixelFormat{};
         mFlinger->getHwComposer().allocateVirtualDisplay(halVirtualDisplayId, uiSize, &pixelFormat);
 
-        PhysicalDisplayId physicalDisplayId =
-                SurfaceComposerClient::getInternalDisplayId().value_or(
-                        PhysicalDisplayId::fromPort(fdp->ConsumeIntegral<uint8_t>()));
+        PhysicalDisplayId physicalDisplayId = getFirstDisplayId().value_or(
+                PhysicalDisplayId::fromPort(fdp->ConsumeIntegral<uint8_t>()));
         mFlinger->getHwComposer().allocatePhysicalDisplay(kHwDisplayId, physicalDisplayId);
 
         sp<IBinder> display =
@@ -576,8 +576,6 @@
 
         onPullAtom(&mFdp);
 
-        mFlinger->injectVSync(mFdp.ConsumeIntegral<nsecs_t>());
-
         getCompositionPreference();
         getDisplayedContentSample(display, &mFdp);
         getDesiredDisplayModeSpecs(display);
@@ -728,8 +726,10 @@
         return mFlinger->setPowerModeInternal(display, mode);
     }
 
-    auto &getTransactionQueue() { return mFlinger->mLocklessTransactionQueue; }
-    auto &getPendingTransactionQueue() { return mFlinger->mPendingTransactionQueues; }
+    auto &getTransactionQueue() { return mFlinger->mTransactionHandler.mLocklessTransactionQueue; }
+    auto &getPendingTransactionQueue() {
+        return mFlinger->mTransactionHandler.mPendingTransactionQueues;
+    }
 
     auto setTransactionState(
             const FrameTimelineInfo &frameTimelineInfo, const Vector<ComposerState> &states,
@@ -757,12 +757,10 @@
     /* Read-write access to private data to set up preconditions and assert
      * post-conditions.
      */
-
     auto& mutableSupportsWideColor() { return mFlinger->mSupportsWideColor; }
     auto& mutableCurrentState() { return mFlinger->mCurrentState; }
     auto& mutableDisplays() { return mFlinger->mDisplays; }
     auto& mutableDrawingState() { return mFlinger->mDrawingState; }
-    auto& mutableInterceptor() { return mFlinger->mInterceptor; }
 
     auto fromHandle(const sp<IBinder> &handle) { return mFlinger->fromHandle(handle); }
 
@@ -770,7 +768,6 @@
         mutableDisplays().clear();
         mutableCurrentState().displays.clear();
         mutableDrawingState().displays.clear();
-        mutableInterceptor().clear();
         mFlinger->mScheduler.reset();
         mFlinger->mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>());
         mFlinger->mCompositionEngine->setRenderEngine(
@@ -779,7 +776,7 @@
 
 private:
     void setVsyncEnabled(bool) override {}
-    void requestDisplayMode(DisplayModePtr, DisplayModeEvent) override {}
+    void requestDisplayModes(std::vector<scheduler::DisplayModeConfig>) override {}
     void kernelTimerChanged(bool) override {}
     void triggerOnFrameRateOverridesChanged() override {}
 
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
index a949440..2614288 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_scheduler_fuzzer.cpp
@@ -92,7 +92,7 @@
     const auto getVsyncPeriod = [](uid_t /* uid */) { return kSyncPeriod.count(); };
     std::unique_ptr<android::impl::EventThread> thread = std::make_unique<
             android::impl::EventThread>(std::move(std::make_unique<FuzzImplVSyncSource>()), nullptr,
-                                        nullptr, nullptr, getVsyncPeriod);
+                                        nullptr, getVsyncPeriod);
 
     thread->onHotplugReceived(getPhysicalDisplayId(), mFdp.ConsumeBool());
     sp<EventThreadConnection> connection =
diff --git a/services/surfaceflinger/tests/Android.bp b/services/surfaceflinger/tests/Android.bp
index 13ce65d..bd6367d 100644
--- a/services/surfaceflinger/tests/Android.bp
+++ b/services/surfaceflinger/tests/Android.bp
@@ -56,13 +56,11 @@
         "SetFrameRateOverride_test.cpp",
         "SetGeometry_test.cpp",
         "Stress_test.cpp",
-        "SurfaceInterceptor_test.cpp",
         "VirtualDisplay_test.cpp",
         "WindowInfosListener_test.cpp",
     ],
     data: ["SurfaceFlinger_test.filter"],
     static_libs: [
-        "libtrace_proto",
         "liblayers_proto",
         "android.hardware.graphics.composer@2.1",
     ],
@@ -128,7 +126,6 @@
 }
 
 subdirs = [
-    "fakehwc",
     "hwc2",
     "unittests",
     "utils",
diff --git a/services/surfaceflinger/tests/BootDisplayMode_test.cpp b/services/surfaceflinger/tests/BootDisplayMode_test.cpp
index 432e227..f2874ae 100644
--- a/services/surfaceflinger/tests/BootDisplayMode_test.cpp
+++ b/services/surfaceflinger/tests/BootDisplayMode_test.cpp
@@ -30,7 +30,10 @@
 
 TEST(BootDisplayModeTest, setBootDisplayMode) {
     sp<gui::ISurfaceComposer> sf(ComposerServiceAIDL::getComposerService());
-    auto displayToken = SurfaceComposerClient::getInternalDisplayToken();
+
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    ASSERT_FALSE(ids.empty());
+    auto displayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     bool bootModeSupport = false;
     binder::Status status = sf->getBootDisplayModeSupport(&bootModeSupport);
     ASSERT_NO_FATAL_FAILURE(statusTFromBinderStatus(status));
@@ -42,7 +45,9 @@
 
 TEST(BootDisplayModeTest, clearBootDisplayMode) {
     sp<gui::ISurfaceComposer> sf(ComposerServiceAIDL::getComposerService());
-    auto displayToken = SurfaceComposerClient::getInternalDisplayToken();
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    ASSERT_FALSE(ids.empty());
+    auto displayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     bool bootModeSupport = false;
     binder::Status status = sf->getBootDisplayModeSupport(&bootModeSupport);
     ASSERT_NO_FATAL_FAILURE(statusTFromBinderStatus(status));
diff --git a/services/surfaceflinger/tests/Credentials_test.cpp b/services/surfaceflinger/tests/Credentials_test.cpp
index 775de4a..4f04934 100644
--- a/services/surfaceflinger/tests/Credentials_test.cpp
+++ b/services/surfaceflinger/tests/Credentials_test.cpp
@@ -74,8 +74,17 @@
         ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
     }
 
+    static sp<IBinder> getFirstDisplayToken() {
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        if (ids.empty()) {
+            return nullptr;
+        }
+
+        return SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
+    }
+
     void setupBackgroundSurface() {
-        mDisplay = SurfaceComposerClient::getInternalDisplayToken();
+        mDisplay = getFirstDisplayToken();
         ASSERT_FALSE(mDisplay == nullptr);
 
         ui::DisplayMode mode;
@@ -158,9 +167,7 @@
 }
 
 TEST_F(CredentialsTest, GetBuiltInDisplayAccessTest) {
-    std::function<bool()> condition = [] {
-        return SurfaceComposerClient::getInternalDisplayToken() != nullptr;
-    };
+    std::function<bool()> condition = [] { return getFirstDisplayToken() != nullptr; };
     // Anyone can access display information.
     ASSERT_NO_FATAL_FAILURE(checkWithPrivileges(condition, true, true));
 }
@@ -169,7 +176,7 @@
     // The following methods are tested with a UID that is not root, graphics,
     // or system, to show that anyone can access them.
     UIDFaker f(AID_BIN);
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     ASSERT_TRUE(display != nullptr);
 
     ui::DisplayMode mode;
@@ -181,7 +188,7 @@
 }
 
 TEST_F(CredentialsTest, GetDynamicDisplayInfoTest) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     std::function<status_t()> condition = [=]() {
         ui::DynamicDisplayInfo info;
         return SurfaceComposerClient::getDynamicDisplayInfo(display, &info);
@@ -190,7 +197,7 @@
 }
 
 TEST_F(CredentialsTest, GetDisplayNativePrimariesTest) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     std::function<status_t()> condition = [=]() {
         ui::DisplayPrimaries primaries;
         return SurfaceComposerClient::getDisplayNativePrimaries(display, primaries);
@@ -199,7 +206,7 @@
 }
 
 TEST_F(CredentialsTest, SetDesiredDisplayConfigsTest) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     ui::DisplayModeId defaultMode;
     bool allowGroupSwitching;
     float primaryFpsMin;
@@ -222,7 +229,7 @@
 }
 
 TEST_F(CredentialsTest, SetActiveColorModeTest) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     std::function<status_t()> condition = [=]() {
         return SurfaceComposerClient::setActiveColorMode(display, ui::ColorMode::NATIVE);
     };
@@ -274,7 +281,7 @@
 }
 
 TEST_F(CredentialsTest, CaptureTest) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     std::function<status_t()> condition = [=]() {
         sp<GraphicBuffer> outBuffer;
         DisplayCaptureArgs captureArgs;
@@ -333,7 +340,7 @@
 }
 
 TEST_F(CredentialsTest, IsWideColorDisplayBasicCorrectness) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     ASSERT_FALSE(display == nullptr);
     bool result = false;
     status_t error = SurfaceComposerClient::isWideColorDisplay(display, &result);
@@ -357,7 +364,7 @@
 }
 
 TEST_F(CredentialsTest, IsWideColorDisplayWithPrivileges) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     ASSERT_FALSE(display == nullptr);
     std::function<status_t()> condition = [=]() {
         bool result = false;
@@ -367,7 +374,7 @@
 }
 
 TEST_F(CredentialsTest, GetActiveColorModeBasicCorrectness) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto display = getFirstDisplayToken();
     ASSERT_FALSE(display == nullptr);
     ui::DynamicDisplayInfo info;
     SurfaceComposerClient::getDynamicDisplayInfo(display, &info);
diff --git a/services/surfaceflinger/tests/DisplayConfigs_test.cpp b/services/surfaceflinger/tests/DisplayConfigs_test.cpp
index 2dc96b8..02c934e 100644
--- a/services/surfaceflinger/tests/DisplayConfigs_test.cpp
+++ b/services/surfaceflinger/tests/DisplayConfigs_test.cpp
@@ -48,7 +48,9 @@
 
 protected:
     void SetUp() override {
-        mDisplayToken = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        mDisplayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         status_t res =
                 SurfaceComposerClient::getDesiredDisplayModeSpecs(mDisplayToken,
                                                                   &initialDefaultMode,
@@ -149,4 +151,4 @@
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wextra"
\ No newline at end of file
+#pragma clang diagnostic pop // ignored "-Wextra"
diff --git a/services/surfaceflinger/tests/EffectLayer_test.cpp b/services/surfaceflinger/tests/EffectLayer_test.cpp
index 9fa0452..52aa502 100644
--- a/services/surfaceflinger/tests/EffectLayer_test.cpp
+++ b/services/surfaceflinger/tests/EffectLayer_test.cpp
@@ -28,7 +28,9 @@
         LayerTransactionTest::SetUp();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
 
-        const auto display = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(display == nullptr);
 
         mParentLayer = createColorLayer("Parent layer", Color::RED);
@@ -177,7 +179,9 @@
 }
 
 TEST_F(EffectLayerTest, EffectLayerWithColorNoCrop) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    ASSERT_FALSE(ids.empty());
+    const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     ui::DisplayMode mode;
     ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
     const ui::Size& resolution = mode.resolution;
diff --git a/services/surfaceflinger/tests/IPC_test.cpp b/services/surfaceflinger/tests/IPC_test.cpp
index c63d251..40a5d57 100644
--- a/services/surfaceflinger/tests/IPC_test.cpp
+++ b/services/surfaceflinger/tests/IPC_test.cpp
@@ -224,7 +224,9 @@
         mClient = sp<SurfaceComposerClient>::make();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
 
-        mPrimaryDisplay = mClient->getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        mPrimaryDisplay = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ui::DisplayMode mode;
         mClient->getActiveDisplayMode(mPrimaryDisplay, &mode);
         mDisplayWidth = mode.resolution.getWidth();
diff --git a/services/surfaceflinger/tests/InvalidHandles_test.cpp b/services/surfaceflinger/tests/InvalidHandles_test.cpp
index 741b6f7..666ce76 100644
--- a/services/surfaceflinger/tests/InvalidHandles_test.cpp
+++ b/services/surfaceflinger/tests/InvalidHandles_test.cpp
@@ -48,7 +48,7 @@
     }
 
     sp<SurfaceControl> makeNotSurfaceControl() {
-        return sp<SurfaceControl>::make(mScc, sp<NotALayer>::make(), 1);
+        return sp<SurfaceControl>::make(mScc, sp<NotALayer>::make(), 1, "#1");
     }
 };
 
diff --git a/services/surfaceflinger/tests/LayerBorder_test.cpp b/services/surfaceflinger/tests/LayerBorder_test.cpp
index 85108ad..00e134b 100644
--- a/services/surfaceflinger/tests/LayerBorder_test.cpp
+++ b/services/surfaceflinger/tests/LayerBorder_test.cpp
@@ -34,7 +34,9 @@
         toHalf3 = ColorTransformHelper::toHalf3;
         toHalf4 = ColorTransformHelper::toHalf4;
 
-        const auto display = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(display == nullptr);
         mColorOrange = toHalf4({255, 140, 0, 255});
         mParentLayer = createColorLayer("Parent layer", Color::RED);
diff --git a/services/surfaceflinger/tests/LayerTransactionTest.h b/services/surfaceflinger/tests/LayerTransactionTest.h
index 774c1d7..badd5be 100644
--- a/services/surfaceflinger/tests/LayerTransactionTest.h
+++ b/services/surfaceflinger/tests/LayerTransactionTest.h
@@ -289,7 +289,9 @@
 
 private:
     void SetUpDisplay() {
-        mDisplay = mClient->getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        mDisplay = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(mDisplay == nullptr) << "failed to get display";
 
         ui::DisplayMode mode;
diff --git a/services/surfaceflinger/tests/LayerUpdate_test.cpp b/services/surfaceflinger/tests/LayerUpdate_test.cpp
index e1a7ecc..867eddb 100644
--- a/services/surfaceflinger/tests/LayerUpdate_test.cpp
+++ b/services/surfaceflinger/tests/LayerUpdate_test.cpp
@@ -33,7 +33,9 @@
         LayerTransactionTest::SetUp();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
 
-        const auto display = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(display == nullptr);
 
         ui::DisplayMode mode;
diff --git a/services/surfaceflinger/tests/MirrorLayer_test.cpp b/services/surfaceflinger/tests/MirrorLayer_test.cpp
index faaef5d..e69db7c 100644
--- a/services/surfaceflinger/tests/MirrorLayer_test.cpp
+++ b/services/surfaceflinger/tests/MirrorLayer_test.cpp
@@ -29,8 +29,10 @@
     virtual void SetUp() {
         LayerTransactionTest::SetUp();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
 
-        const auto display = SurfaceComposerClient::getInternalDisplayToken();
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(display == nullptr);
 
         mParentLayer = createColorLayer("Parent layer", Color::RED);
@@ -231,7 +233,10 @@
 
 // Test that the mirror layer is initially offscreen.
 TEST_F(MirrorLayerTest, InitialMirrorState) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    ASSERT_FALSE(ids.empty());
+
+    const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     ui::DisplayMode mode;
     SurfaceComposerClient::getActiveDisplayMode(display, &mode);
     const ui::Size& size = mode.resolution;
@@ -275,7 +280,9 @@
 
 // Test that a mirror layer can be screenshot when offscreen
 TEST_F(MirrorLayerTest, OffscreenMirrorScreenshot) {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
+    const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+    ASSERT_FALSE(ids.empty());
+    const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
     ui::DisplayMode mode;
     SurfaceComposerClient::getActiveDisplayMode(display, &mode);
     const ui::Size& size = mode.resolution;
diff --git a/services/surfaceflinger/tests/MultiDisplayLayerBounds_test.cpp b/services/surfaceflinger/tests/MultiDisplayLayerBounds_test.cpp
index 1ed6c65..15ff696 100644
--- a/services/surfaceflinger/tests/MultiDisplayLayerBounds_test.cpp
+++ b/services/surfaceflinger/tests/MultiDisplayLayerBounds_test.cpp
@@ -35,7 +35,9 @@
         LayerTransactionTest::SetUp();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
 
-        mMainDisplay = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        mMainDisplay = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         SurfaceComposerClient::getDisplayState(mMainDisplay, &mMainDisplayState);
         SurfaceComposerClient::getActiveDisplayMode(mMainDisplay, &mMainDisplayMode);
 
diff --git a/services/surfaceflinger/tests/RelativeZ_test.cpp b/services/surfaceflinger/tests/RelativeZ_test.cpp
index 50a4092..9cebf11 100644
--- a/services/surfaceflinger/tests/RelativeZ_test.cpp
+++ b/services/surfaceflinger/tests/RelativeZ_test.cpp
@@ -33,7 +33,9 @@
         LayerTransactionTest::SetUp();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
 
-        const auto display = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(display == nullptr);
 
         // Back layer
diff --git a/services/surfaceflinger/tests/ScreenCapture_test.cpp b/services/surfaceflinger/tests/ScreenCapture_test.cpp
index 3a5e532..976ee35 100644
--- a/services/surfaceflinger/tests/ScreenCapture_test.cpp
+++ b/services/surfaceflinger/tests/ScreenCapture_test.cpp
@@ -30,7 +30,9 @@
         LayerTransactionTest::SetUp();
         ASSERT_EQ(NO_ERROR, mClient->initCheck());
 
-        const auto display = SurfaceComposerClient::getInternalDisplayToken();
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        ASSERT_FALSE(ids.empty());
+        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
         ASSERT_FALSE(display == nullptr);
 
         ui::DisplayMode mode;
diff --git a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp b/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
deleted file mode 100644
index d79e592..0000000
--- a/services/surfaceflinger/tests/SurfaceInterceptor_test.cpp
+++ /dev/null
@@ -1,959 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-#pragma clang diagnostic ignored "-Wextra"
-
-#include <android-base/stringprintf.h>
-#include <frameworks/native/cmds/surfacereplayer/proto/src/trace.pb.h>
-#include <google/protobuf/io/zero_copy_stream_impl.h>
-#include <gtest/gtest.h>
-#include <gui/ISurfaceComposer.h>
-#include <gui/LayerState.h>
-#include <gui/Surface.h>
-#include <gui/SurfaceComposerClient.h>
-#include <private/gui/ComposerService.h>
-#include <ui/DisplayMode.h>
-
-#include <fstream>
-#include <random>
-#include <thread>
-
-namespace android {
-
-using Transaction = SurfaceComposerClient::Transaction;
-using SurfaceChange = surfaceflinger::SurfaceChange;
-using Trace = surfaceflinger::Trace;
-using Increment = surfaceflinger::Increment;
-
-constexpr uint32_t BUFFER_UPDATES = 18;
-constexpr uint32_t LAYER_UPDATE = INT_MAX - 2;
-constexpr uint32_t SIZE_UPDATE = 134;
-constexpr uint32_t STACK_UPDATE = 1;
-constexpr int32_t RELATIVE_Z = 42;
-constexpr float ALPHA_UPDATE = 0.29f;
-constexpr float CORNER_RADIUS_UPDATE = 0.2f;
-constexpr int BACKGROUND_BLUR_RADIUS_UPDATE = 24;
-constexpr float POSITION_UPDATE = 121;
-const Rect CROP_UPDATE(16, 16, 32, 32);
-const float SHADOW_RADIUS_UPDATE = 35.0f;
-std::vector<BlurRegion> BLUR_REGIONS_UPDATE;
-
-const String8 DISPLAY_NAME("SurfaceInterceptor Display Test");
-constexpr auto TEST_BG_SURFACE_NAME = "BG Interceptor Test Surface";
-constexpr auto TEST_FG_SURFACE_NAME = "FG Interceptor Test Surface";
-constexpr auto LAYER_NAME = "Layer Create and Delete Test";
-
-constexpr auto DEFAULT_FILENAME = "/data/misc/wmtrace/transaction_trace.winscope";
-
-// Fill an RGBA_8888 formatted surface with a single color.
-static void fillSurfaceRGBA8(const sp<SurfaceControl>& sc, uint8_t r, uint8_t g, uint8_t b) {
-    ANativeWindow_Buffer outBuffer;
-    sp<Surface> s = sc->getSurface();
-    ASSERT_TRUE(s != nullptr);
-    ASSERT_EQ(NO_ERROR, s->lock(&outBuffer, nullptr));
-    uint8_t* img = reinterpret_cast<uint8_t*>(outBuffer.bits);
-    for (int y = 0; y < outBuffer.height; y++) {
-        for (int x = 0; x < outBuffer.width; x++) {
-            uint8_t* pixel = img + (4 * (y*outBuffer.stride + x));
-            pixel[0] = r;
-            pixel[1] = g;
-            pixel[2] = b;
-            pixel[3] = 255;
-        }
-    }
-    ASSERT_EQ(NO_ERROR, s->unlockAndPost());
-}
-
-static status_t readProtoFile(Trace* trace) {
-    status_t err = NO_ERROR;
-
-    int fd = open(DEFAULT_FILENAME, O_RDONLY);
-    {
-        google::protobuf::io::FileInputStream f(fd);
-        if (fd && !trace->ParseFromZeroCopyStream(&f)) {
-            err = PERMISSION_DENIED;
-        }
-    }
-    close(fd);
-
-    return err;
-}
-
-static void enableInterceptor() {
-    system("service call SurfaceFlinger 1020 i32 1 > /dev/null");
-}
-
-static void disableInterceptor() {
-    system("service call SurfaceFlinger 1020 i32 0 > /dev/null");
-}
-
-std::string getUniqueName(const std::string& name, const Increment& increment) {
-    return base::StringPrintf("%s#%d", name.c_str(), increment.surface_creation().id());
-}
-
-int32_t getSurfaceId(const Trace& capturedTrace, const std::string& surfaceName) {
-    int32_t layerId = 0;
-    for (const auto& increment : capturedTrace.increment()) {
-        if (increment.increment_case() == increment.kSurfaceCreation) {
-            if (increment.surface_creation().name() == getUniqueName(surfaceName, increment)) {
-                layerId = increment.surface_creation().id();
-            }
-        }
-    }
-    return layerId;
-}
-
-int32_t getDisplayId(const Trace& capturedTrace, const std::string& displayName) {
-    int32_t displayId = 0;
-    for (const auto& increment : capturedTrace.increment()) {
-        if (increment.increment_case() == increment.kDisplayCreation) {
-            if (increment.display_creation().name() == displayName) {
-                displayId = increment.display_creation().id();
-                break;
-            }
-        }
-    }
-    return displayId;
-}
-
-class SurfaceInterceptorTest : public ::testing::Test {
-protected:
-    void SetUp() override {
-        // Allow SurfaceInterceptor write to /data
-        system("setenforce 0");
-
-        mComposerClient = sp<SurfaceComposerClient>::make();
-        ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
-        GTEST_SKIP();
-    }
-
-    void TearDown() override {
-        mComposerClient->dispose();
-        mBGSurfaceControl.clear();
-        mFGSurfaceControl.clear();
-        mComposerClient.clear();
-        system("setenforce 1");
-    }
-
-    sp<SurfaceComposerClient> mComposerClient;
-    sp<SurfaceControl> mBGSurfaceControl;
-    sp<SurfaceControl> mFGSurfaceControl;
-    int32_t mBGLayerId;
-    int32_t mFGLayerId;
-
-public:
-    using TestTransactionAction = void (SurfaceInterceptorTest::*)(Transaction&);
-    using TestAction = void (SurfaceInterceptorTest::*)();
-    using TestBooleanVerification = bool (SurfaceInterceptorTest::*)(const Trace&);
-    using TestVerification = void (SurfaceInterceptorTest::*)(const Trace&);
-
-    void setupBackgroundSurface();
-    void preProcessTrace(const Trace& trace);
-
-    // captureTest will enable SurfaceInterceptor, setup background surface,
-    // disable SurfaceInterceptor, collect the trace and process the trace for
-    // id of background surface before further verification.
-    void captureTest(TestTransactionAction action, TestBooleanVerification verification);
-    void captureTest(TestTransactionAction action, SurfaceChange::SurfaceChangeCase changeCase);
-    void captureTest(TestTransactionAction action, Increment::IncrementCase incrementCase);
-    void captureTest(TestAction action, TestBooleanVerification verification);
-    void captureTest(TestAction action, TestVerification verification);
-    void runInTransaction(TestTransactionAction action);
-
-    // Verification of changes to a surface
-    bool positionUpdateFound(const SurfaceChange& change, bool foundPosition);
-    bool sizeUpdateFound(const SurfaceChange& change, bool foundSize);
-    bool alphaUpdateFound(const SurfaceChange& change, bool foundAlpha);
-    bool layerUpdateFound(const SurfaceChange& change, bool foundLayer);
-    bool cropUpdateFound(const SurfaceChange& change, bool foundCrop);
-    bool cornerRadiusUpdateFound(const SurfaceChange& change, bool foundCornerRadius);
-    bool backgroundBlurRadiusUpdateFound(const SurfaceChange& change,
-                                         bool foundBackgroundBlurRadius);
-    bool blurRegionsUpdateFound(const SurfaceChange& change, bool foundBlurRegions);
-    bool matrixUpdateFound(const SurfaceChange& change, bool foundMatrix);
-    bool scalingModeUpdateFound(const SurfaceChange& change, bool foundScalingMode);
-    bool transparentRegionHintUpdateFound(const SurfaceChange& change, bool foundTransparentRegion);
-    bool layerStackUpdateFound(const SurfaceChange& change, bool foundLayerStack);
-    bool hiddenFlagUpdateFound(const SurfaceChange& change, bool foundHiddenFlag);
-    bool opaqueFlagUpdateFound(const SurfaceChange& change, bool foundOpaqueFlag);
-    bool secureFlagUpdateFound(const SurfaceChange& change, bool foundSecureFlag);
-    bool reparentUpdateFound(const SurfaceChange& change, bool found);
-    bool relativeParentUpdateFound(const SurfaceChange& change, bool found);
-    bool shadowRadiusUpdateFound(const SurfaceChange& change, bool found);
-    bool trustedOverlayUpdateFound(const SurfaceChange& change, bool found);
-    bool surfaceUpdateFound(const Trace& trace, SurfaceChange::SurfaceChangeCase changeCase);
-
-    // Find all of the updates in the single trace
-    void assertAllUpdatesFound(const Trace& trace);
-
-    // Verification of creation and deletion of a surface
-    bool surfaceCreationFound(const Increment& increment, bool foundSurface);
-    bool surfaceDeletionFound(const Increment& increment, const int32_t targetId,
-            bool foundSurface);
-    bool displayCreationFound(const Increment& increment, bool foundDisplay);
-    bool displayDeletionFound(const Increment& increment, const int32_t targetId,
-            bool foundDisplay);
-    bool singleIncrementFound(const Trace& trace, Increment::IncrementCase incrementCase);
-
-    // Verification of buffer updates
-    bool bufferUpdatesFound(const Trace& trace);
-
-    // Perform each of the possible changes to a surface
-    void positionUpdate(Transaction&);
-    void sizeUpdate(Transaction&);
-    void alphaUpdate(Transaction&);
-    void layerUpdate(Transaction&);
-    void cropUpdate(Transaction&);
-    void cornerRadiusUpdate(Transaction&);
-    void backgroundBlurRadiusUpdate(Transaction&);
-    void blurRegionsUpdate(Transaction&);
-    void matrixUpdate(Transaction&);
-    void transparentRegionHintUpdate(Transaction&);
-    void layerStackUpdate(Transaction&);
-    void hiddenFlagUpdate(Transaction&);
-    void opaqueFlagUpdate(Transaction&);
-    void secureFlagUpdate(Transaction&);
-    void reparentUpdate(Transaction&);
-    void relativeParentUpdate(Transaction&);
-    void shadowRadiusUpdate(Transaction&);
-    void trustedOverlayUpdate(Transaction&);
-    void surfaceCreation(Transaction&);
-    void displayCreation(Transaction&);
-    void displayDeletion(Transaction&);
-
-    void nBufferUpdates();
-    void runAllUpdates();
-
-private:
-    void captureInTransaction(TestTransactionAction action, Trace*);
-    void capture(TestAction action, Trace*);
-};
-
-void SurfaceInterceptorTest::captureInTransaction(TestTransactionAction action, Trace* outTrace) {
-    enableInterceptor();
-    setupBackgroundSurface();
-    runInTransaction(action);
-    disableInterceptor();
-    ASSERT_EQ(NO_ERROR, readProtoFile(outTrace));
-    preProcessTrace(*outTrace);
-}
-
-void SurfaceInterceptorTest::capture(TestAction action, Trace* outTrace) {
-    enableInterceptor();
-    setupBackgroundSurface();
-    (this->*action)();
-    disableInterceptor();
-    ASSERT_EQ(NO_ERROR, readProtoFile(outTrace));
-    preProcessTrace(*outTrace);
-}
-
-void SurfaceInterceptorTest::setupBackgroundSurface() {
-    const auto display = SurfaceComposerClient::getInternalDisplayToken();
-    ASSERT_FALSE(display == nullptr);
-
-    ui::DisplayMode mode;
-    ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-    const ui::Size& resolution = mode.resolution;
-
-    // Background surface
-    mBGSurfaceControl =
-            mComposerClient->createSurface(String8(TEST_BG_SURFACE_NAME), resolution.getWidth(),
-                                           resolution.getHeight(), PIXEL_FORMAT_RGBA_8888, 0);
-    ASSERT_TRUE(mBGSurfaceControl != nullptr);
-    ASSERT_TRUE(mBGSurfaceControl->isValid());
-
-    // Foreground surface
-    mFGSurfaceControl =
-            mComposerClient->createSurface(String8(TEST_FG_SURFACE_NAME), resolution.getWidth(),
-                                           resolution.getHeight(), PIXEL_FORMAT_RGBA_8888, 0);
-    ASSERT_TRUE(mFGSurfaceControl != nullptr);
-    ASSERT_TRUE(mFGSurfaceControl->isValid());
-
-    Transaction t;
-    t.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-    ASSERT_EQ(NO_ERROR,
-              t.setLayer(mBGSurfaceControl, INT_MAX - 3)
-                      .show(mBGSurfaceControl)
-                      .setLayer(mFGSurfaceControl, INT_MAX - 3)
-                      .show(mFGSurfaceControl)
-                      .apply());
-}
-
-void SurfaceInterceptorTest::preProcessTrace(const Trace& trace) {
-    mBGLayerId = getSurfaceId(trace, TEST_BG_SURFACE_NAME);
-    mFGLayerId = getSurfaceId(trace, TEST_FG_SURFACE_NAME);
-}
-
-void SurfaceInterceptorTest::captureTest(TestTransactionAction action,
-        TestBooleanVerification verification) {
-    Trace capturedTrace;
-    captureInTransaction(action, &capturedTrace);
-    ASSERT_TRUE((this->*verification)(capturedTrace));
-}
-
-void SurfaceInterceptorTest::captureTest(TestTransactionAction action,
-        Increment::IncrementCase incrementCase) {
-    Trace capturedTrace;
-    captureInTransaction(action, &capturedTrace);
-    ASSERT_TRUE(singleIncrementFound(capturedTrace, incrementCase));
-}
-
-void SurfaceInterceptorTest::captureTest(TestTransactionAction action,
-        SurfaceChange::SurfaceChangeCase changeCase) {
-    Trace capturedTrace;
-    captureInTransaction(action, &capturedTrace);
-    ASSERT_TRUE(surfaceUpdateFound(capturedTrace, changeCase));
-}
-
-void SurfaceInterceptorTest::captureTest(TestAction action, TestBooleanVerification verification) {
-    Trace capturedTrace;
-    capture(action, &capturedTrace);
-    ASSERT_TRUE((this->*verification)(capturedTrace));
-}
-
-void SurfaceInterceptorTest::captureTest(TestAction action, TestVerification verification) {
-    Trace capturedTrace;
-    capture(action, &capturedTrace);
-    (this->*verification)(capturedTrace);
-}
-
-void SurfaceInterceptorTest::runInTransaction(TestTransactionAction action) {
-    Transaction t;
-    (this->*action)(t);
-    t.apply(true);
-}
-
-void SurfaceInterceptorTest::positionUpdate(Transaction& t) {
-    t.setPosition(mBGSurfaceControl, POSITION_UPDATE, POSITION_UPDATE);
-}
-
-void SurfaceInterceptorTest::sizeUpdate(Transaction&) {}
-
-void SurfaceInterceptorTest::alphaUpdate(Transaction& t) {
-    t.setAlpha(mBGSurfaceControl, ALPHA_UPDATE);
-}
-
-void SurfaceInterceptorTest::cornerRadiusUpdate(Transaction& t) {
-    t.setCornerRadius(mBGSurfaceControl, CORNER_RADIUS_UPDATE);
-}
-
-void SurfaceInterceptorTest::backgroundBlurRadiusUpdate(Transaction& t) {
-    t.setBackgroundBlurRadius(mBGSurfaceControl, BACKGROUND_BLUR_RADIUS_UPDATE);
-}
-
-void SurfaceInterceptorTest::blurRegionsUpdate(Transaction& t) {
-    BLUR_REGIONS_UPDATE.empty();
-    BLUR_REGIONS_UPDATE.push_back(BlurRegion());
-    t.setBlurRegions(mBGSurfaceControl, BLUR_REGIONS_UPDATE);
-}
-
-void SurfaceInterceptorTest::layerUpdate(Transaction& t) {
-    t.setLayer(mBGSurfaceControl, LAYER_UPDATE);
-}
-
-void SurfaceInterceptorTest::cropUpdate(Transaction& t) {
-    t.setCrop(mBGSurfaceControl, CROP_UPDATE);
-}
-
-void SurfaceInterceptorTest::matrixUpdate(Transaction& t) {
-    t.setMatrix(mBGSurfaceControl, M_SQRT1_2, M_SQRT1_2, -M_SQRT1_2, M_SQRT1_2);
-}
-
-void SurfaceInterceptorTest::transparentRegionHintUpdate(Transaction& t) {
-    Region region(CROP_UPDATE);
-    t.setTransparentRegionHint(mBGSurfaceControl, region);
-}
-
-void SurfaceInterceptorTest::layerStackUpdate(Transaction& t) {
-    t.setLayerStack(mBGSurfaceControl, ui::LayerStack::fromValue(STACK_UPDATE));
-}
-
-void SurfaceInterceptorTest::hiddenFlagUpdate(Transaction& t) {
-    t.setFlags(mBGSurfaceControl, layer_state_t::eLayerHidden, layer_state_t::eLayerHidden);
-}
-
-void SurfaceInterceptorTest::opaqueFlagUpdate(Transaction& t) {
-    t.setFlags(mBGSurfaceControl, layer_state_t::eLayerOpaque, layer_state_t::eLayerOpaque);
-}
-
-void SurfaceInterceptorTest::secureFlagUpdate(Transaction& t) {
-    t.setFlags(mBGSurfaceControl, layer_state_t::eLayerSecure, layer_state_t::eLayerSecure);
-}
-
-void SurfaceInterceptorTest::reparentUpdate(Transaction& t) {
-    t.reparent(mBGSurfaceControl, mFGSurfaceControl);
-}
-
-void SurfaceInterceptorTest::relativeParentUpdate(Transaction& t) {
-    t.setRelativeLayer(mBGSurfaceControl, mFGSurfaceControl, RELATIVE_Z);
-}
-
-void SurfaceInterceptorTest::shadowRadiusUpdate(Transaction& t) {
-    t.setShadowRadius(mBGSurfaceControl, SHADOW_RADIUS_UPDATE);
-}
-
-void SurfaceInterceptorTest::trustedOverlayUpdate(Transaction& t) {
-    t.setTrustedOverlay(mBGSurfaceControl, true);
-}
-
-void SurfaceInterceptorTest::displayCreation(Transaction&) {
-    sp<IBinder> testDisplay = SurfaceComposerClient::createDisplay(DISPLAY_NAME, false);
-    SurfaceComposerClient::destroyDisplay(testDisplay);
-}
-
-void SurfaceInterceptorTest::displayDeletion(Transaction&) {
-    sp<IBinder> testDisplay = SurfaceComposerClient::createDisplay(DISPLAY_NAME, false);
-    SurfaceComposerClient::destroyDisplay(testDisplay);
-}
-
-void SurfaceInterceptorTest::runAllUpdates() {
-    runInTransaction(&SurfaceInterceptorTest::positionUpdate);
-    runInTransaction(&SurfaceInterceptorTest::sizeUpdate);
-    runInTransaction(&SurfaceInterceptorTest::alphaUpdate);
-    runInTransaction(&SurfaceInterceptorTest::cornerRadiusUpdate);
-    runInTransaction(&SurfaceInterceptorTest::backgroundBlurRadiusUpdate);
-    runInTransaction(&SurfaceInterceptorTest::blurRegionsUpdate);
-    runInTransaction(&SurfaceInterceptorTest::layerUpdate);
-    runInTransaction(&SurfaceInterceptorTest::cropUpdate);
-    runInTransaction(&SurfaceInterceptorTest::matrixUpdate);
-    runInTransaction(&SurfaceInterceptorTest::transparentRegionHintUpdate);
-    runInTransaction(&SurfaceInterceptorTest::layerStackUpdate);
-    runInTransaction(&SurfaceInterceptorTest::hiddenFlagUpdate);
-    runInTransaction(&SurfaceInterceptorTest::opaqueFlagUpdate);
-    runInTransaction(&SurfaceInterceptorTest::secureFlagUpdate);
-    runInTransaction(&SurfaceInterceptorTest::reparentUpdate);
-    runInTransaction(&SurfaceInterceptorTest::relativeParentUpdate);
-    runInTransaction(&SurfaceInterceptorTest::shadowRadiusUpdate);
-    runInTransaction(&SurfaceInterceptorTest::trustedOverlayUpdate);
-}
-
-void SurfaceInterceptorTest::surfaceCreation(Transaction&) {
-    mComposerClient->createSurface(String8(LAYER_NAME), SIZE_UPDATE, SIZE_UPDATE,
-            PIXEL_FORMAT_RGBA_8888, 0);
-}
-
-void SurfaceInterceptorTest::nBufferUpdates() {
-    std::random_device rd;
-    std::mt19937_64 gen(rd());
-    // This makes testing fun
-    std::uniform_int_distribution<uint8_t> dis;
-    for (uint32_t i = 0; i < BUFFER_UPDATES; ++i) {
-        fillSurfaceRGBA8(mBGSurfaceControl, dis(gen), dis(gen), dis(gen));
-    }
-}
-
-bool SurfaceInterceptorTest::positionUpdateFound(const SurfaceChange& change, bool foundPosition) {
-    // There should only be one position transaction with x and y = POSITION_UPDATE
-    bool hasX(change.position().x() == POSITION_UPDATE);
-    bool hasY(change.position().y() == POSITION_UPDATE);
-    if (hasX && hasY && !foundPosition) {
-        foundPosition = true;
-    } else if (hasX && hasY && foundPosition) {
-        // Failed because the position update was found a second time
-        [] () { FAIL(); }();
-    }
-    return foundPosition;
-}
-
-bool SurfaceInterceptorTest::sizeUpdateFound(const SurfaceChange&, bool) {
-    return true;
-}
-
-bool SurfaceInterceptorTest::alphaUpdateFound(const SurfaceChange& change, bool foundAlpha) {
-    bool hasAlpha(change.alpha().alpha() == ALPHA_UPDATE);
-    if (hasAlpha && !foundAlpha) {
-        foundAlpha = true;
-    } else if (hasAlpha && foundAlpha) {
-        [] () { FAIL(); }();
-    }
-    return foundAlpha;
-}
-
-bool SurfaceInterceptorTest::cornerRadiusUpdateFound(const SurfaceChange &change,
-                                                     bool foundCornerRadius) {
-    bool hasCornerRadius(change.corner_radius().corner_radius() == CORNER_RADIUS_UPDATE);
-    if (hasCornerRadius && !foundCornerRadius) {
-        foundCornerRadius = true;
-    } else if (hasCornerRadius && foundCornerRadius) {
-        [] () { FAIL(); }();
-    }
-    return foundCornerRadius;
-}
-
-bool SurfaceInterceptorTest::backgroundBlurRadiusUpdateFound(const SurfaceChange& change,
-                                                             bool foundBackgroundBlur) {
-    bool hasBackgroundBlur(change.background_blur_radius().background_blur_radius() ==
-                           BACKGROUND_BLUR_RADIUS_UPDATE);
-    if (hasBackgroundBlur && !foundBackgroundBlur) {
-        foundBackgroundBlur = true;
-    } else if (hasBackgroundBlur && foundBackgroundBlur) {
-        []() { FAIL(); }();
-    }
-    return foundBackgroundBlur;
-}
-
-bool SurfaceInterceptorTest::blurRegionsUpdateFound(const SurfaceChange& change,
-                                                    bool foundBlurRegions) {
-    bool hasBlurRegions(change.blur_regions().blur_regions_size() == BLUR_REGIONS_UPDATE.size());
-    if (hasBlurRegions && !foundBlurRegions) {
-        foundBlurRegions = true;
-    } else if (hasBlurRegions && foundBlurRegions) {
-        []() { FAIL(); }();
-    }
-    return foundBlurRegions;
-}
-
-bool SurfaceInterceptorTest::layerUpdateFound(const SurfaceChange& change, bool foundLayer) {
-    bool hasLayer(change.layer().layer() == LAYER_UPDATE);
-    if (hasLayer && !foundLayer) {
-        foundLayer = true;
-    } else if (hasLayer && foundLayer) {
-        [] () { FAIL(); }();
-    }
-    return foundLayer;
-}
-
-bool SurfaceInterceptorTest::cropUpdateFound(const SurfaceChange& change, bool foundCrop) {
-    bool hasLeft(change.crop().rectangle().left() == CROP_UPDATE.left);
-    bool hasTop(change.crop().rectangle().top() == CROP_UPDATE.top);
-    bool hasRight(change.crop().rectangle().right() == CROP_UPDATE.right);
-    bool hasBottom(change.crop().rectangle().bottom() == CROP_UPDATE.bottom);
-    if (hasLeft && hasRight && hasTop && hasBottom && !foundCrop) {
-        foundCrop = true;
-    } else if (hasLeft && hasRight && hasTop && hasBottom && foundCrop) {
-        [] () { FAIL(); }();
-    }
-    return foundCrop;
-}
-
-bool SurfaceInterceptorTest::matrixUpdateFound(const SurfaceChange& change, bool foundMatrix) {
-    bool hasSx((float)change.matrix().dsdx() == (float)M_SQRT1_2);
-    bool hasTx((float)change.matrix().dtdx() == (float)M_SQRT1_2);
-    bool hasSy((float)change.matrix().dsdy() == (float)M_SQRT1_2);
-    bool hasTy((float)change.matrix().dtdy() == (float)-M_SQRT1_2);
-    if (hasSx && hasTx && hasSy && hasTy && !foundMatrix) {
-        foundMatrix = true;
-    } else if (hasSx && hasTx && hasSy && hasTy && foundMatrix) {
-        [] () { FAIL(); }();
-    }
-    return foundMatrix;
-}
-
-bool SurfaceInterceptorTest::transparentRegionHintUpdateFound(const SurfaceChange& change,
-        bool foundTransparentRegion) {
-    auto traceRegion = change.transparent_region_hint().region(0);
-    bool hasLeft(traceRegion.left() == CROP_UPDATE.left);
-    bool hasTop(traceRegion.top() == CROP_UPDATE.top);
-    bool hasRight(traceRegion.right() == CROP_UPDATE.right);
-    bool hasBottom(traceRegion.bottom() == CROP_UPDATE.bottom);
-    if (hasLeft && hasRight && hasTop && hasBottom && !foundTransparentRegion) {
-        foundTransparentRegion = true;
-    } else if (hasLeft && hasRight && hasTop && hasBottom && foundTransparentRegion) {
-        [] () { FAIL(); }();
-    }
-    return foundTransparentRegion;
-}
-
-bool SurfaceInterceptorTest::layerStackUpdateFound(const SurfaceChange& change,
-        bool foundLayerStack) {
-    bool hasLayerStackUpdate(change.layer_stack().layer_stack() == STACK_UPDATE);
-    if (hasLayerStackUpdate && !foundLayerStack) {
-        foundLayerStack = true;
-    } else if (hasLayerStackUpdate && foundLayerStack) {
-        [] () { FAIL(); }();
-    }
-    return foundLayerStack;
-}
-
-bool SurfaceInterceptorTest::hiddenFlagUpdateFound(const SurfaceChange& change,
-        bool foundHiddenFlag) {
-    bool hasHiddenFlag(change.hidden_flag().hidden_flag());
-    if (hasHiddenFlag && !foundHiddenFlag) {
-        foundHiddenFlag = true;
-    } else if (hasHiddenFlag && foundHiddenFlag) {
-        [] () { FAIL(); }();
-    }
-    return foundHiddenFlag;
-}
-
-bool SurfaceInterceptorTest::opaqueFlagUpdateFound(const SurfaceChange& change,
-        bool foundOpaqueFlag) {
-    bool hasOpaqueFlag(change.opaque_flag().opaque_flag());
-    if (hasOpaqueFlag && !foundOpaqueFlag) {
-        foundOpaqueFlag = true;
-    } else if (hasOpaqueFlag && foundOpaqueFlag) {
-        [] () { FAIL(); }();
-    }
-    return foundOpaqueFlag;
-}
-
-bool SurfaceInterceptorTest::secureFlagUpdateFound(const SurfaceChange& change,
-        bool foundSecureFlag) {
-    bool hasSecureFlag(change.secure_flag().secure_flag());
-    if (hasSecureFlag && !foundSecureFlag) {
-        foundSecureFlag = true;
-    } else if (hasSecureFlag && foundSecureFlag) {
-        [] () { FAIL(); }();
-    }
-    return foundSecureFlag;
-}
-
-bool SurfaceInterceptorTest::reparentUpdateFound(const SurfaceChange& change, bool found) {
-    bool hasId(change.reparent().parent_id() == mFGLayerId);
-    if (hasId && !found) {
-        found = true;
-    } else if (hasId && found) {
-        []() { FAIL(); }();
-    }
-    return found;
-}
-
-bool SurfaceInterceptorTest::relativeParentUpdateFound(const SurfaceChange& change, bool found) {
-    bool hasId(change.relative_parent().relative_parent_id() == mFGLayerId);
-    if (hasId && !found) {
-        found = true;
-    } else if (hasId && found) {
-        []() { FAIL(); }();
-    }
-    return found;
-}
-
-bool SurfaceInterceptorTest::shadowRadiusUpdateFound(const SurfaceChange& change,
-                                                     bool foundShadowRadius) {
-    bool hasShadowRadius(change.shadow_radius().radius() == SHADOW_RADIUS_UPDATE);
-    if (hasShadowRadius && !foundShadowRadius) {
-        foundShadowRadius = true;
-    } else if (hasShadowRadius && foundShadowRadius) {
-        []() { FAIL(); }();
-    }
-    return foundShadowRadius;
-}
-
-bool SurfaceInterceptorTest::trustedOverlayUpdateFound(const SurfaceChange& change,
-                                                       bool foundTrustedOverlay) {
-    bool hasTrustedOverlay(change.trusted_overlay().is_trusted_overlay());
-    if (hasTrustedOverlay && !foundTrustedOverlay) {
-        foundTrustedOverlay = true;
-    } else if (hasTrustedOverlay && foundTrustedOverlay) {
-        []() { FAIL(); }();
-    }
-    return foundTrustedOverlay;
-}
-
-bool SurfaceInterceptorTest::surfaceUpdateFound(const Trace& trace,
-        SurfaceChange::SurfaceChangeCase changeCase) {
-    bool foundUpdate = false;
-    for (const auto& increment : trace.increment()) {
-        if (increment.increment_case() == increment.kTransaction) {
-            for (const auto& change : increment.transaction().surface_change()) {
-                if (change.id() == mBGLayerId && change.SurfaceChange_case() == changeCase) {
-                    switch (changeCase) {
-                        case SurfaceChange::SurfaceChangeCase::kPosition:
-                            // foundUpdate is sent for the tests to fail on duplicated increments
-                            foundUpdate = positionUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kSize:
-                            foundUpdate = sizeUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kAlpha:
-                            foundUpdate = alphaUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kLayer:
-                            foundUpdate = layerUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kCrop:
-                            foundUpdate = cropUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kCornerRadius:
-                            foundUpdate = cornerRadiusUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kBackgroundBlurRadius:
-                            foundUpdate = backgroundBlurRadiusUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kBlurRegions:
-                            foundUpdate = blurRegionsUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kMatrix:
-                            foundUpdate = matrixUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kTransparentRegionHint:
-                            foundUpdate = transparentRegionHintUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kLayerStack:
-                            foundUpdate = layerStackUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kHiddenFlag:
-                            foundUpdate = hiddenFlagUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kOpaqueFlag:
-                            foundUpdate = opaqueFlagUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kSecureFlag:
-                            foundUpdate = secureFlagUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kReparent:
-                            foundUpdate = reparentUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kRelativeParent:
-                            foundUpdate = relativeParentUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kShadowRadius:
-                            foundUpdate = shadowRadiusUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::kTrustedOverlay:
-                            foundUpdate = trustedOverlayUpdateFound(change, foundUpdate);
-                            break;
-                        case SurfaceChange::SurfaceChangeCase::SURFACECHANGE_NOT_SET:
-                            break;
-                    }
-                }
-            }
-        }
-    }
-    return foundUpdate;
-}
-
-void SurfaceInterceptorTest::assertAllUpdatesFound(const Trace& trace) {
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kPosition));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kSize));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kAlpha));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kLayer));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kCrop));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kMatrix));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kTransparentRegionHint));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kLayerStack));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kHiddenFlag));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kOpaqueFlag));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kSecureFlag));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kReparent));
-    ASSERT_TRUE(surfaceUpdateFound(trace, SurfaceChange::SurfaceChangeCase::kRelativeParent));
-}
-
-bool SurfaceInterceptorTest::surfaceCreationFound(const Increment& increment, bool foundSurface) {
-    bool isMatch(increment.surface_creation().name() == getUniqueName(LAYER_NAME, increment));
-    if (isMatch && !foundSurface) {
-        foundSurface = true;
-    } else if (isMatch && foundSurface) {
-        [] () { FAIL(); }();
-    }
-    return foundSurface;
-}
-
-bool SurfaceInterceptorTest::surfaceDeletionFound(const Increment& increment,
-        const int32_t targetId, bool foundSurface) {
-    bool isMatch(increment.surface_deletion().id() == targetId);
-    if (isMatch && !foundSurface) {
-        foundSurface = true;
-    } else if (isMatch && foundSurface) {
-        [] () { FAIL(); }();
-    }
-    return foundSurface;
-}
-
-bool SurfaceInterceptorTest::displayCreationFound(const Increment& increment, bool foundDisplay) {
-    bool isMatch(increment.display_creation().name() == DISPLAY_NAME.string() &&
-                 !increment.display_creation().is_secure());
-    if (isMatch && !foundDisplay) {
-        foundDisplay = true;
-    } else if (isMatch && foundDisplay) {
-        [] () { FAIL(); }();
-    }
-    return foundDisplay;
-}
-
-bool SurfaceInterceptorTest::displayDeletionFound(const Increment& increment,
-        const int32_t targetId, bool foundDisplay) {
-    bool isMatch(increment.display_deletion().id() == targetId);
-    if (isMatch && !foundDisplay) {
-        foundDisplay = true;
-    } else if (isMatch && foundDisplay) {
-        [] () { FAIL(); }();
-    }
-    return foundDisplay;
-}
-
-bool SurfaceInterceptorTest::singleIncrementFound(const Trace& trace,
-        Increment::IncrementCase incrementCase) {
-    bool foundIncrement = false;
-    for (const auto& increment : trace.increment()) {
-        if (increment.increment_case() == incrementCase) {
-            int32_t targetId = 0;
-            switch (incrementCase) {
-                case Increment::IncrementCase::kSurfaceCreation:
-                    foundIncrement = surfaceCreationFound(increment, foundIncrement);
-                    break;
-                case Increment::IncrementCase::kSurfaceDeletion:
-                    // Find the id of created surface.
-                    targetId = getSurfaceId(trace, LAYER_NAME);
-                    foundIncrement = surfaceDeletionFound(increment, targetId, foundIncrement);
-                    break;
-                case Increment::IncrementCase::kDisplayCreation:
-                    foundIncrement = displayCreationFound(increment, foundIncrement);
-                    break;
-                case Increment::IncrementCase::kDisplayDeletion:
-                    // Find the id of created display.
-                    targetId = getDisplayId(trace, DISPLAY_NAME.string());
-                    foundIncrement = displayDeletionFound(increment, targetId, foundIncrement);
-                    break;
-                default:
-                    /* code */
-                    break;
-            }
-        }
-    }
-    return foundIncrement;
-}
-
-bool SurfaceInterceptorTest::bufferUpdatesFound(const Trace& trace) {
-    uint32_t updates = 0;
-    for (const auto& inc : trace.increment()) {
-        if (inc.increment_case() == inc.kBufferUpdate && inc.buffer_update().id() == mBGLayerId) {
-            updates++;
-        }
-    }
-    return updates == BUFFER_UPDATES;
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptPositionUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::positionUpdate,
-            SurfaceChange::SurfaceChangeCase::kPosition);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptSizeUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::sizeUpdate, SurfaceChange::SurfaceChangeCase::kSize);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptAlphaUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::alphaUpdate, SurfaceChange::SurfaceChangeCase::kAlpha);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptLayerUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::layerUpdate, SurfaceChange::SurfaceChangeCase::kLayer);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptCropUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::cropUpdate, SurfaceChange::SurfaceChangeCase::kCrop);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptCornerRadiusUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::cornerRadiusUpdate,
-            SurfaceChange::SurfaceChangeCase::kCornerRadius);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptBackgroundBlurRadiusUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::backgroundBlurRadiusUpdate,
-                SurfaceChange::SurfaceChangeCase::kBackgroundBlurRadius);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptBlurRegionsUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::blurRegionsUpdate,
-                SurfaceChange::SurfaceChangeCase::kBlurRegions);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptMatrixUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::matrixUpdate, SurfaceChange::SurfaceChangeCase::kMatrix);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptTransparentRegionHintUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::transparentRegionHintUpdate,
-            SurfaceChange::SurfaceChangeCase::kTransparentRegionHint);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptLayerStackUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::layerStackUpdate,
-            SurfaceChange::SurfaceChangeCase::kLayerStack);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptHiddenFlagUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::hiddenFlagUpdate,
-            SurfaceChange::SurfaceChangeCase::kHiddenFlag);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptOpaqueFlagUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::opaqueFlagUpdate,
-            SurfaceChange::SurfaceChangeCase::kOpaqueFlag);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptSecureFlagUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::secureFlagUpdate,
-            SurfaceChange::SurfaceChangeCase::kSecureFlag);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptReparentUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::reparentUpdate,
-                SurfaceChange::SurfaceChangeCase::kReparent);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptRelativeParentUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::relativeParentUpdate,
-                SurfaceChange::SurfaceChangeCase::kRelativeParent);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptShadowRadiusUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::shadowRadiusUpdate,
-                SurfaceChange::SurfaceChangeCase::kShadowRadius);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptTrustedOverlayUpdateWorks) {
-    captureTest(&SurfaceInterceptorTest::trustedOverlayUpdate,
-                SurfaceChange::SurfaceChangeCase::kTrustedOverlay);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptAllUpdatesWorks) {
-    captureTest(&SurfaceInterceptorTest::runAllUpdates,
-                &SurfaceInterceptorTest::assertAllUpdatesFound);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptSurfaceCreationWorks) {
-    captureTest(&SurfaceInterceptorTest::surfaceCreation,
-            Increment::IncrementCase::kSurfaceCreation);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptDisplayCreationWorks) {
-    captureTest(&SurfaceInterceptorTest::displayCreation,
-            Increment::IncrementCase::kDisplayCreation);
-}
-
-TEST_F(SurfaceInterceptorTest, InterceptDisplayDeletionWorks) {
-    enableInterceptor();
-    runInTransaction(&SurfaceInterceptorTest::displayDeletion);
-    disableInterceptor();
-    Trace capturedTrace;
-    ASSERT_EQ(NO_ERROR, readProtoFile(&capturedTrace));
-    ASSERT_TRUE(singleIncrementFound(capturedTrace, Increment::IncrementCase::kDisplayDeletion));
-}
-
-// If the interceptor is enabled while buffer updates are being pushed, the interceptor should
-// first create a snapshot of the existing displays and surfaces and then start capturing
-// the buffer updates
-TEST_F(SurfaceInterceptorTest, InterceptWhileBufferUpdatesWorks) {
-    setupBackgroundSurface();
-    std::thread bufferUpdates(&SurfaceInterceptorTest::nBufferUpdates, this);
-    enableInterceptor();
-    disableInterceptor();
-    bufferUpdates.join();
-
-    Trace capturedTrace;
-    ASSERT_EQ(NO_ERROR, readProtoFile(&capturedTrace));
-    const auto& firstIncrement = capturedTrace.mutable_increment(0);
-    ASSERT_EQ(firstIncrement->increment_case(), Increment::IncrementCase::kDisplayCreation);
-}
-}
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion -Wextra"
diff --git a/services/surfaceflinger/tests/TransactionTestHarnesses.h b/services/surfaceflinger/tests/TransactionTestHarnesses.h
index ad03ed3..797a64c 100644
--- a/services/surfaceflinger/tests/TransactionTestHarnesses.h
+++ b/services/surfaceflinger/tests/TransactionTestHarnesses.h
@@ -35,7 +35,10 @@
                 return mDelegate->screenshot();
             case RenderPath::VIRTUAL_DISPLAY:
 
-                const auto displayToken = SurfaceComposerClient::getInternalDisplayToken();
+                const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+                const auto displayToken = ids.empty()
+                        ? nullptr
+                        : SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
 
                 ui::DisplayState displayState;
                 SurfaceComposerClient::getDisplayState(displayToken, &displayState);
diff --git a/services/surfaceflinger/tests/fakehwc/Android.bp b/services/surfaceflinger/tests/fakehwc/Android.bp
deleted file mode 100644
index 06afdb1..0000000
--- a/services/surfaceflinger/tests/fakehwc/Android.bp
+++ /dev/null
@@ -1,65 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_native_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_native_license"],
-}
-
-cc_test {
-    name: "sffakehwc_test",
-    defaults: [
-        "android.hardware.graphics.composer3-ndk_shared",
-        "surfaceflinger_defaults",
-    ],
-    test_suites: ["device-tests"],
-    srcs: [
-        "FakeComposerClient.cpp",
-        "FakeComposerService.cpp",
-        "FakeComposerUtils.cpp",
-        "SFFakeHwc_test.cpp",
-    ],
-    require_root: true,
-    shared_libs: [
-        "android.hardware.graphics.composer@2.1",
-        "android.hardware.graphics.composer@2.2",
-        "android.hardware.graphics.composer@2.3",
-        "android.hardware.graphics.composer@2.4",
-        "android.hardware.graphics.mapper@2.0",
-        "android.hardware.graphics.mapper@3.0",
-        "android.hardware.graphics.mapper@4.0",
-        "android.hardware.power@1.3",
-        "android.hardware.power-V2-cpp",
-        "libbase",
-        "libbinder",
-        "libbinder_ndk",
-        "libcutils",
-        "libfmq",
-        "libgui",
-        "libhidlbase",
-        "liblayers_proto",
-        "liblog",
-        "libnativewindow",
-        "libsync",
-        "libtimestats",
-        "libui",
-        "libutils",
-    ],
-    static_libs: [
-        "android.hardware.graphics.composer@2.1-resources",
-        "libaidlcommonsupport",
-        "libcompositionengine",
-        "libgmock",
-        "libperfetto_client_experimental",
-        "librenderengine",
-        "libtrace_proto",
-        "libaidlcommonsupport",
-    ],
-    header_libs: [
-        "android.hardware.graphics.composer@2.4-command-buffer",
-        "android.hardware.graphics.composer@2.4-hal",
-        "android.hardware.graphics.composer3-command-buffer",
-        "libsurfaceflinger_headers",
-    ],
-}
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerClient.cpp b/services/surfaceflinger/tests/fakehwc/FakeComposerClient.cpp
deleted file mode 100644
index a5cca35..0000000
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerClient.cpp
+++ /dev/null
@@ -1,929 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-//#define LOG_NDEBUG 0
-#undef LOG_TAG
-#define LOG_TAG "FakeComposer"
-
-#include "FakeComposerClient.h"
-
-#include <gui/SurfaceComposerClient.h>
-
-#include <log/log.h>
-
-#include <gtest/gtest.h>
-
-#include <inttypes.h>
-#include <time.h>
-#include <algorithm>
-#include <condition_variable>
-#include <iostream>
-#include <mutex>
-#include <set>
-#include <thread>
-
-constexpr Config NULL_DISPLAY_CONFIG = static_cast<Config>(0);
-
-using namespace sftest;
-
-using android::Condition;
-using android::Mutex;
-
-using Clock = std::chrono::steady_clock;
-using TimePoint = std::chrono::time_point<Clock>;
-
-namespace {
-
-// Internal state of a layer in the HWC API.
-class LayerImpl {
-public:
-    LayerImpl() = default;
-
-    bool mValid = true;
-    RenderState mRenderState;
-    uint32_t mZ = 0;
-};
-
-// Struct for storing per frame rectangle state. Contains the render
-// state shared to the test case. Basically a snapshot and a subset of
-// LayerImpl sufficient to re-create the pixels of a layer for the
-// frame.
-struct FrameRect {
-public:
-    FrameRect(Layer layer_, const RenderState& state, uint32_t z_)
-          : layer(layer_), renderState(state), z(z_) {}
-
-    const Layer layer;
-    const RenderState renderState;
-    const uint32_t z;
-};
-
-// Collection of FrameRects forming one rendered frame. Could store
-// related fences and other data in the future.
-class Frame {
-public:
-    Frame() = default;
-    std::vector<std::unique_ptr<FrameRect>> rectangles;
-};
-
-class DelayedEventGenerator {
-public:
-    explicit DelayedEventGenerator(std::function<void()> onTimerExpired)
-          : mOnTimerExpired(onTimerExpired) {
-        mThread = std::thread([this]() { loop(); });
-    }
-
-    ~DelayedEventGenerator() {
-        ALOGI("DelayedEventGenerator exiting.");
-        {
-            std::unique_lock<std::mutex> lock(mMutex);
-            mRunning = false;
-            mWakeups.clear();
-            mCondition.notify_one();
-        }
-        mThread.join();
-        ALOGI("DelayedEventGenerator exited.");
-    }
-
-    void wakeAfter(std::chrono::nanoseconds waitTime) {
-        std::unique_lock<std::mutex> lock(mMutex);
-        mWakeups.insert(Clock::now() + waitTime);
-        mCondition.notify_one();
-    }
-
-private:
-    void loop() {
-        while (true) {
-            // Lock scope
-            {
-                std::unique_lock<std::mutex> lock(mMutex);
-                mCondition.wait(lock, [this]() { return !mRunning || !mWakeups.empty(); });
-                if (!mRunning && mWakeups.empty()) {
-                    // This thread should only exit once the destructor has been called and all
-                    // wakeups have been processed
-                    return;
-                }
-
-                // At this point, mWakeups will not be empty
-
-                TimePoint target = *(mWakeups.begin());
-                auto status = mCondition.wait_until(lock, target);
-                while (status == std::cv_status::no_timeout) {
-                    // This was either a spurious wakeup or another wakeup was added, so grab the
-                    // oldest point and wait again
-                    target = *(mWakeups.begin());
-                    status = mCondition.wait_until(lock, target);
-                }
-
-                // status must have been timeout, so we can finally clear this point
-                mWakeups.erase(target);
-            }
-            // Callback *without* locks!
-            mOnTimerExpired();
-        }
-    }
-
-    std::function<void()> mOnTimerExpired;
-    std::thread mThread;
-    std::mutex mMutex;
-    std::condition_variable mCondition;
-    bool mRunning = true;
-    std::set<TimePoint> mWakeups;
-};
-
-} // namespace
-
-FakeComposerClient::FakeComposerClient()
-      : mEventCallback(nullptr),
-        mEventCallback_2_4(nullptr),
-        mCurrentConfig(NULL_DISPLAY_CONFIG),
-        mVsyncEnabled(false),
-        mLayers(),
-        mDelayedEventGenerator(
-                std::make_unique<DelayedEventGenerator>([this]() { this->requestVSync(); })),
-        mSurfaceComposer(nullptr) {}
-
-FakeComposerClient::~FakeComposerClient() {}
-
-bool FakeComposerClient::hasCapability(hwc2_capability_t /*capability*/) {
-    return false;
-}
-
-std::string FakeComposerClient::dumpDebugInfo() {
-    return {};
-}
-
-void FakeComposerClient::registerEventCallback(EventCallback* callback) {
-    ALOGV("registerEventCallback");
-    LOG_FATAL_IF(mEventCallback_2_4 != nullptr,
-                 "already registered using registerEventCallback_2_4");
-
-    mEventCallback = callback;
-    if (mEventCallback) {
-        mEventCallback->onHotplug(PRIMARY_DISPLAY, IComposerCallback::Connection::CONNECTED);
-    }
-}
-
-void FakeComposerClient::unregisterEventCallback() {
-    ALOGV("unregisterEventCallback");
-    mEventCallback = nullptr;
-}
-
-void FakeComposerClient::hotplugDisplay(Display display, IComposerCallback::Connection state) {
-    if (mEventCallback) {
-        mEventCallback->onHotplug(display, state);
-    } else if (mEventCallback_2_4) {
-        mEventCallback_2_4->onHotplug(display, state);
-    }
-}
-
-void FakeComposerClient::refreshDisplay(Display display) {
-    if (mEventCallback) {
-        mEventCallback->onRefresh(display);
-    } else if (mEventCallback_2_4) {
-        mEventCallback_2_4->onRefresh(display);
-    }
-}
-
-uint32_t FakeComposerClient::getMaxVirtualDisplayCount() {
-    ALOGV("getMaxVirtualDisplayCount");
-    return 1;
-}
-
-V2_1::Error FakeComposerClient::createVirtualDisplay(uint32_t /*width*/, uint32_t /*height*/,
-                                                     V1_0::PixelFormat* /*format*/,
-                                                     Display* /*outDisplay*/) {
-    ALOGV("createVirtualDisplay");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::destroyVirtualDisplay(Display /*display*/) {
-    ALOGV("destroyVirtualDisplay");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::createLayer(Display /*display*/, Layer* outLayer) {
-    ALOGV("createLayer");
-    *outLayer = mLayers.size();
-    auto newLayer = std::make_unique<LayerImpl>();
-    mLayers.push_back(std::move(newLayer));
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::destroyLayer(Display /*display*/, Layer layer) {
-    ALOGV("destroyLayer");
-    mLayers[layer]->mValid = false;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getActiveConfig(Display display, Config* outConfig) {
-    ALOGV("getActiveConfig");
-    if (mMockHal) {
-        return mMockHal->getActiveConfig(display, outConfig);
-    }
-
-    // TODO Assert outConfig != nullptr
-
-    // TODO This is my reading of the
-    // IComposerClient::getActiveConfig, but returning BAD_CONFIG
-    // seems to not fit SurfaceFlinger plans. See version 2 below.
-    // if (mCurrentConfig == NULL_DISPLAY_CONFIG) {
-    //     return V2_1::Error::BAD_CONFIG;
-    // }
-    //*outConfig = mCurrentConfig;
-    *outConfig = 1; // Very special config for you my friend
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getClientTargetSupport(Display /*display*/, uint32_t /*width*/,
-                                                       uint32_t /*height*/,
-                                                       V1_0::PixelFormat /*format*/,
-                                                       V1_0::Dataspace /*dataspace*/) {
-    ALOGV("getClientTargetSupport");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getColorModes(Display /*display*/,
-                                              hidl_vec<V1_0::ColorMode>* /*outModes*/) {
-    ALOGV("getColorModes");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getDisplayAttribute(Display display, Config config,
-                                                    V2_1::IComposerClient::Attribute attribute,
-                                                    int32_t* outValue) {
-    auto tmpError =
-            getDisplayAttribute_2_4(display, config,
-                                    static_cast<IComposerClient::Attribute>(attribute), outValue);
-    return static_cast<V2_1::Error>(tmpError);
-}
-
-V2_1::Error FakeComposerClient::getDisplayConfigs(Display display, hidl_vec<Config>* outConfigs) {
-    ALOGV("getDisplayConfigs");
-    if (mMockHal) {
-        return mMockHal->getDisplayConfigs(display, outConfigs);
-    }
-
-    // TODO assert display == 1, outConfigs != nullptr
-
-    outConfigs->resize(1);
-    (*outConfigs)[0] = 1;
-
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getDisplayName(Display /*display*/, hidl_string* /*outName*/) {
-    ALOGV("getDisplayName");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getDisplayType(Display /*display*/,
-                                               IComposerClient::DisplayType* outType) {
-    ALOGV("getDisplayType");
-    // TODO: This setting nothing on the output had no effect on initial trials. Is first display
-    // assumed to be physical?
-    *outType = static_cast<IComposerClient::DisplayType>(HWC2_DISPLAY_TYPE_PHYSICAL);
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getDozeSupport(Display /*display*/, bool* /*outSupport*/) {
-    ALOGV("getDozeSupport");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::getHdrCapabilities(Display /*display*/,
-                                                   hidl_vec<V1_0::Hdr>* /*outTypes*/,
-                                                   float* /*outMaxLuminance*/,
-                                                   float* /*outMaxAverageLuminance*/,
-                                                   float* /*outMinLuminance*/) {
-    ALOGV("getHdrCapabilities");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setActiveConfig(Display display, Config config) {
-    ALOGV("setActiveConfig");
-    if (mMockHal) {
-        return mMockHal->setActiveConfig(display, config);
-    }
-    mCurrentConfig = config;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setColorMode(Display /*display*/, V1_0::ColorMode /*mode*/) {
-    ALOGV("setColorMode");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setPowerMode(Display /*display*/,
-                                             V2_1::IComposerClient::PowerMode /*mode*/) {
-    ALOGV("setPowerMode");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setVsyncEnabled(Display /*display*/,
-                                                IComposerClient::Vsync enabled) {
-    mVsyncEnabled = (enabled == IComposerClient::Vsync::ENABLE);
-    ALOGV("setVsyncEnabled(%s)", mVsyncEnabled ? "ENABLE" : "DISABLE");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setColorTransform(Display /*display*/, const float* /*matrix*/,
-                                                  int32_t /*hint*/) {
-    ALOGV("setColorTransform");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setClientTarget(Display /*display*/, buffer_handle_t /*target*/,
-                                                int32_t /*acquireFence*/, int32_t /*dataspace*/,
-                                                const std::vector<hwc_rect_t>& /*damage*/) {
-    ALOGV("setClientTarget");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setOutputBuffer(Display /*display*/, buffer_handle_t /*buffer*/,
-                                                int32_t /*releaseFence*/) {
-    ALOGV("setOutputBuffer");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::validateDisplay(
-        Display /*display*/, std::vector<Layer>* /*outChangedLayers*/,
-        std::vector<IComposerClient::Composition>* /*outCompositionTypes*/,
-        uint32_t* /*outDisplayRequestMask*/, std::vector<Layer>* /*outRequestedLayers*/,
-        std::vector<uint32_t>* /*outRequestMasks*/) {
-    ALOGV("validateDisplay");
-    // TODO: Assume touching nothing means All Korrekt!
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::acceptDisplayChanges(Display /*display*/) {
-    ALOGV("acceptDisplayChanges");
-    // Didn't ask for changes because software is omnipotent.
-    return V2_1::Error::NONE;
-}
-
-bool layerZOrdering(const std::unique_ptr<FrameRect>& a, const std::unique_ptr<FrameRect>& b) {
-    return a->z <= b->z;
-}
-
-V2_1::Error FakeComposerClient::presentDisplay(Display /*display*/, int32_t* /*outPresentFence*/,
-                                               std::vector<Layer>* /*outLayers*/,
-                                               std::vector<int32_t>* /*outReleaseFences*/) {
-    ALOGV("presentDisplay");
-    // TODO Leaving layers and their fences out for now. Doing so
-    // means that we've already processed everything. Important to
-    // test that the fences are respected, though. (How?)
-
-    std::unique_ptr<Frame> newFrame(new Frame);
-    for (uint64_t layer = 0; layer < mLayers.size(); layer++) {
-        const LayerImpl& layerImpl = *mLayers[layer];
-
-        if (!layerImpl.mValid) continue;
-
-        auto rect = std::make_unique<FrameRect>(layer, layerImpl.mRenderState, layerImpl.mZ);
-        newFrame->rectangles.push_back(std::move(rect));
-    }
-    std::sort(newFrame->rectangles.begin(), newFrame->rectangles.end(), layerZOrdering);
-    {
-        Mutex::Autolock _l(mStateMutex);
-        mFrames.push_back(std::move(newFrame));
-        mFramesAvailable.broadcast();
-    }
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerCursorPosition(Display /*display*/, Layer /*layer*/,
-                                                       int32_t /*x*/, int32_t /*y*/) {
-    ALOGV("setLayerCursorPosition");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerBuffer(Display /*display*/, Layer layer,
-                                               buffer_handle_t buffer, int32_t acquireFence) {
-    ALOGV("setLayerBuffer");
-    LayerImpl& l = getLayerImpl(layer);
-    if (buffer != l.mRenderState.mBuffer) {
-        l.mRenderState.mSwapCount++; // TODO: Is setting to same value a swap or not?
-    }
-    l.mRenderState.mBuffer = buffer;
-    l.mRenderState.mAcquireFence = acquireFence;
-
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerSurfaceDamage(Display /*display*/, Layer /*layer*/,
-                                                      const std::vector<hwc_rect_t>& /*damage*/) {
-    ALOGV("setLayerSurfaceDamage");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerBlendMode(Display /*display*/, Layer layer, int32_t mode) {
-    ALOGV("setLayerBlendMode");
-    getLayerImpl(layer).mRenderState.mBlendMode = static_cast<hwc2_blend_mode_t>(mode);
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerColor(Display /*display*/, Layer layer,
-                                              IComposerClient::Color color) {
-    ALOGV("setLayerColor");
-    getLayerImpl(layer).mRenderState.mLayerColor.r = color.r;
-    getLayerImpl(layer).mRenderState.mLayerColor.g = color.g;
-    getLayerImpl(layer).mRenderState.mLayerColor.b = color.b;
-    getLayerImpl(layer).mRenderState.mLayerColor.a = color.a;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerCompositionType(Display /*display*/, Layer /*layer*/,
-                                                        int32_t /*type*/) {
-    ALOGV("setLayerCompositionType");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerDataspace(Display /*display*/, Layer /*layer*/,
-                                                  int32_t /*dataspace*/) {
-    ALOGV("setLayerDataspace");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerDisplayFrame(Display /*display*/, Layer layer,
-                                                     const hwc_rect_t& frame) {
-    ALOGV("setLayerDisplayFrame (%d, %d, %d, %d)", frame.left, frame.top, frame.right,
-          frame.bottom);
-    getLayerImpl(layer).mRenderState.mDisplayFrame = frame;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerPlaneAlpha(Display /*display*/, Layer layer, float alpha) {
-    ALOGV("setLayerPlaneAlpha");
-    getLayerImpl(layer).mRenderState.mPlaneAlpha = alpha;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerSidebandStream(Display /*display*/, Layer /*layer*/,
-                                                       buffer_handle_t /*stream*/) {
-    ALOGV("setLayerSidebandStream");
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerSourceCrop(Display /*display*/, Layer layer,
-                                                   const hwc_frect_t& crop) {
-    ALOGV("setLayerSourceCrop");
-    getLayerImpl(layer).mRenderState.mSourceCrop = crop;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerTransform(Display /*display*/, Layer layer,
-                                                  int32_t transform) {
-    ALOGV("setLayerTransform");
-    getLayerImpl(layer).mRenderState.mTransform = static_cast<hwc_transform_t>(transform);
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerVisibleRegion(Display /*display*/, Layer layer,
-                                                      const std::vector<hwc_rect_t>& visible) {
-    ALOGV("setLayerVisibleRegion");
-    getLayerImpl(layer).mRenderState.mVisibleRegion = visible;
-    return V2_1::Error::NONE;
-}
-
-V2_1::Error FakeComposerClient::setLayerZOrder(Display /*display*/, Layer layer, uint32_t z) {
-    ALOGV("setLayerZOrder");
-    getLayerImpl(layer).mZ = z;
-    return V2_1::Error::NONE;
-}
-
-// Composer 2.2
-V2_1::Error FakeComposerClient::getPerFrameMetadataKeys(
-        Display /*display*/, std::vector<V2_2::IComposerClient::PerFrameMetadataKey>* /*outKeys*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setLayerPerFrameMetadata(
-        Display /*display*/, Layer /*layer*/,
-        const std::vector<V2_2::IComposerClient::PerFrameMetadata>& /*metadata*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getReadbackBufferAttributes(
-        Display /*display*/, graphics::common::V1_1::PixelFormat* /*outFormat*/,
-        graphics::common::V1_1::Dataspace* /*outDataspace*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setReadbackBuffer(Display /*display*/,
-                                                  const native_handle_t* /*bufferHandle*/,
-                                                  android::base::unique_fd /*fenceFd*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getReadbackBufferFence(Display /*display*/,
-                                                       android::base::unique_fd* /*outFenceFd*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::createVirtualDisplay_2_2(
-        uint32_t /*width*/, uint32_t /*height*/, graphics::common::V1_1::PixelFormat* /*format*/,
-        Display* /*outDisplay*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-V2_1::Error FakeComposerClient::getClientTargetSupport_2_2(
-        Display /*display*/, uint32_t /*width*/, uint32_t /*height*/,
-        graphics::common::V1_1::PixelFormat /*format*/,
-        graphics::common::V1_1::Dataspace /*dataspace*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setPowerMode_2_2(Display /*display*/,
-                                                 V2_2::IComposerClient::PowerMode /*mode*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setLayerFloatColor(Display /*display*/, Layer /*layer*/,
-                                                   V2_2::IComposerClient::FloatColor /*color*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getColorModes_2_2(
-        Display /*display*/, hidl_vec<graphics::common::V1_1::ColorMode>* /*outModes*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getRenderIntents(
-        Display /*display*/, graphics::common::V1_1::ColorMode /*mode*/,
-        std::vector<graphics::common::V1_1::RenderIntent>* /*outIntents*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setColorMode_2_2(Display /*display*/,
-                                                 graphics::common::V1_1::ColorMode /*mode*/,
-                                                 graphics::common::V1_1::RenderIntent /*intent*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-std::array<float, 16> FakeComposerClient::getDataspaceSaturationMatrix(
-        graphics::common::V1_1::Dataspace /*dataspace*/) {
-    return {};
-}
-
-// Composer 2.3
-V2_1::Error FakeComposerClient::getPerFrameMetadataKeys_2_3(
-        Display /*display*/, std::vector<V2_3::IComposerClient::PerFrameMetadataKey>* /*outKeys*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setColorMode_2_3(Display /*display*/,
-                                                 graphics::common::V1_2::ColorMode /*mode*/,
-                                                 graphics::common::V1_1::RenderIntent /*intent*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getRenderIntents_2_3(
-        Display /*display*/, graphics::common::V1_2::ColorMode /*mode*/,
-        std::vector<graphics::common::V1_1::RenderIntent>* /*outIntents*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getColorModes_2_3(
-        Display /*display*/, hidl_vec<graphics::common::V1_2::ColorMode>* /*outModes*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getClientTargetSupport_2_3(
-        Display /*display*/, uint32_t /*width*/, uint32_t /*height*/,
-        graphics::common::V1_2::PixelFormat /*format*/,
-        graphics::common::V1_2::Dataspace /*dataspace*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getReadbackBufferAttributes_2_3(
-        Display /*display*/, graphics::common::V1_2::PixelFormat* /*outFormat*/,
-        graphics::common::V1_2::Dataspace* /*outDataspace*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getHdrCapabilities_2_3(
-        Display /*display*/, hidl_vec<graphics::common::V1_2::Hdr>* /*outTypes*/,
-        float* /*outMaxLuminance*/, float* /*outMaxAverageLuminance*/, float* /*outMinLuminance*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setLayerPerFrameMetadata_2_3(
-        Display /*display*/, Layer /*layer*/,
-        const std::vector<V2_3::IComposerClient::PerFrameMetadata>& /*metadata*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getDisplayIdentificationData(Display /*display*/,
-                                                             uint8_t* /*outPort*/,
-                                                             std::vector<uint8_t>* /*outData*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setLayerColorTransform(Display /*display*/, Layer /*layer*/,
-                                                       const float* /*matrix*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getDisplayedContentSamplingAttributes(
-        uint64_t /*display*/, graphics::common::V1_2::PixelFormat& /*format*/,
-        graphics::common::V1_2::Dataspace& /*dataspace*/,
-        hidl_bitfield<V2_3::IComposerClient::FormatColorComponent>& /*componentMask*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setDisplayedContentSamplingEnabled(
-        uint64_t /*display*/, V2_3::IComposerClient::DisplayedContentSampling /*enable*/,
-        hidl_bitfield<V2_3::IComposerClient::FormatColorComponent> /*componentMask*/,
-        uint64_t /*maxFrames*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getDisplayedContentSample(
-        uint64_t /*display*/, uint64_t /*maxFrames*/, uint64_t /*timestamp*/,
-        uint64_t& /*frameCount*/, hidl_vec<uint64_t>& /*sampleComponent0*/,
-        hidl_vec<uint64_t>& /*sampleComponent1*/, hidl_vec<uint64_t>& /*sampleComponent2*/,
-        hidl_vec<uint64_t>& /*sampleComponent3*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getDisplayCapabilities(
-        Display /*display*/,
-        std::vector<V2_3::IComposerClient::DisplayCapability>* /*outCapabilities*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setLayerPerFrameMetadataBlobs(
-        Display /*display*/, Layer /*layer*/,
-        std::vector<V2_3::IComposerClient::PerFrameMetadataBlob>& /*blobs*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::getDisplayBrightnessSupport(Display /*display*/,
-                                                            bool* /*outSupport*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-V2_1::Error FakeComposerClient::setDisplayBrightness(Display /*display*/, float /*brightness*/) {
-    return V2_1::Error::UNSUPPORTED;
-}
-
-// Composer 2.4
-void FakeComposerClient::registerEventCallback_2_4(EventCallback_2_4* callback) {
-    ALOGV("registerEventCallback_2_4");
-    LOG_FATAL_IF(mEventCallback != nullptr, "already registered using registerEventCallback");
-
-    mEventCallback_2_4 = callback;
-    if (mEventCallback_2_4) {
-        mEventCallback_2_4->onHotplug(PRIMARY_DISPLAY, IComposerCallback::Connection::CONNECTED);
-    }
-}
-
-void FakeComposerClient::unregisterEventCallback_2_4() {
-    ALOGV("unregisterEventCallback_2_4");
-    mEventCallback_2_4 = nullptr;
-}
-
-V2_4::Error FakeComposerClient::getDisplayCapabilities_2_4(
-        Display /*display*/,
-        std::vector<V2_4::IComposerClient::DisplayCapability>* /*outCapabilities*/) {
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::getDisplayConnectionType(
-        Display /*display*/, V2_4::IComposerClient::DisplayConnectionType* /*outType*/) {
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::getDisplayAttribute_2_4(Display display, Config config,
-                                                        IComposerClient::Attribute attribute,
-                                                        int32_t* outValue) {
-    ALOGV("getDisplayAttribute (%d, %d, %d, %p)", static_cast<int>(display),
-          static_cast<int>(config), static_cast<int>(attribute), outValue);
-    if (mMockHal) {
-        return mMockHal->getDisplayAttribute_2_4(display, config, attribute, outValue);
-    }
-
-    // TODO: SOOO much fun to be had with these alone
-    switch (attribute) {
-        case IComposerClient::Attribute::WIDTH:
-            *outValue = 1920;
-            break;
-        case IComposerClient::Attribute::HEIGHT:
-            *outValue = 1080;
-            break;
-        case IComposerClient::Attribute::VSYNC_PERIOD:
-            *outValue = 1666666666;
-            break; // TOOD: Tests break down if lowered to 16ms?
-        case IComposerClient::Attribute::DPI_X:
-            *outValue = 240;
-            break;
-        case IComposerClient::Attribute::DPI_Y:
-            *outValue = 240;
-            break;
-        default:
-            LOG_ALWAYS_FATAL("Say what!?! New attribute");
-    }
-
-    return Error::NONE;
-}
-
-V2_4::Error FakeComposerClient::getDisplayVsyncPeriod(Display display,
-                                                      V2_4::VsyncPeriodNanos* outVsyncPeriod) {
-    ALOGV("getDisplayVsyncPeriod");
-    if (mMockHal) {
-        return mMockHal->getDisplayVsyncPeriod(display, outVsyncPeriod);
-    }
-
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::setActiveConfigWithConstraints(
-        Display display, Config config,
-        const V2_4::IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-        VsyncPeriodChangeTimeline* timeline) {
-    ALOGV("setActiveConfigWithConstraints");
-    if (mMockHal) {
-        return mMockHal->setActiveConfigWithConstraints(display, config,
-                                                        vsyncPeriodChangeConstraints, timeline);
-    }
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::setAutoLowLatencyMode(Display, bool) {
-    ALOGV("setAutoLowLatencyMode");
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::getSupportedContentTypes(
-        Display, std::vector<IComposerClient::ContentType>*) {
-    ALOGV("getSupportedContentTypes");
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::setContentType(Display, IComposerClient::ContentType) {
-    ALOGV("setContentType");
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::validateDisplay_2_4(
-        Display /*display*/, std::vector<Layer>* /*outChangedLayers*/,
-        std::vector<IComposerClient::Composition>* /*outCompositionTypes*/,
-        uint32_t* /*outDisplayRequestMask*/, std::vector<Layer>* /*outRequestedLayers*/,
-        std::vector<uint32_t>* /*outRequestMasks*/,
-        IComposerClient::ClientTargetProperty* /*outClientTargetProperty*/) {
-    return V2_4::Error::NONE;
-}
-
-V2_4::Error FakeComposerClient::setLayerGenericMetadata(Display, Layer, const std::string&, bool,
-                                                        const std::vector<uint8_t>&) {
-    ALOGV("setLayerGenericMetadata");
-    return V2_4::Error::UNSUPPORTED;
-}
-
-V2_4::Error FakeComposerClient::getLayerGenericMetadataKeys(
-        std::vector<IComposerClient::LayerGenericMetadataKey>*) {
-    ALOGV("getLayerGenericMetadataKeys");
-    return V2_4::Error::UNSUPPORTED;
-}
-
-//////////////////////////////////////////////////////////////////
-
-void FakeComposerClient::requestVSync(uint64_t vsyncTime) {
-    if (mEventCallback || mEventCallback_2_4) {
-        uint64_t timestamp = vsyncTime;
-        ALOGV("Vsync");
-        if (timestamp == 0) {
-            struct timespec ts;
-            clock_gettime(CLOCK_MONOTONIC, &ts);
-            timestamp = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
-        }
-        if (mSurfaceComposer != nullptr) {
-            mSurfaceComposer->injectVSync(timestamp);
-        } else if (mEventCallback) {
-            mEventCallback->onVsync(PRIMARY_DISPLAY, timestamp);
-        } else {
-            mEventCallback_2_4->onVsync_2_4(PRIMARY_DISPLAY, timestamp, 16'666'666);
-        }
-    }
-}
-
-void FakeComposerClient::runVSyncAfter(std::chrono::nanoseconds wait) {
-    mDelayedEventGenerator->wakeAfter(wait);
-}
-
-LayerImpl& FakeComposerClient::getLayerImpl(Layer handle) {
-    // TODO Change these to an internal state check that can be
-    // invoked from the gtest? GTest macros do not seem all that safe
-    // when used outside the test class
-    EXPECT_GE(handle, static_cast<Layer>(0));
-    EXPECT_LT(handle, mLayers.size());
-    return *(mLayers[handle]);
-}
-
-int FakeComposerClient::getFrameCount() const {
-    return mFrames.size();
-}
-
-static std::vector<RenderState> extractRenderState(
-        const std::vector<std::unique_ptr<FrameRect>>& internalRects) {
-    std::vector<RenderState> result;
-    result.reserve(internalRects.size());
-    for (const std::unique_ptr<FrameRect>& rect : internalRects) {
-        result.push_back(rect->renderState);
-    }
-    return result;
-}
-
-std::vector<RenderState> FakeComposerClient::getFrameRects(int frame) const {
-    Mutex::Autolock _l(mStateMutex);
-    return extractRenderState(mFrames[frame]->rectangles);
-}
-
-std::vector<RenderState> FakeComposerClient::getLatestFrame() const {
-    Mutex::Autolock _l(mStateMutex);
-    return extractRenderState(mFrames[mFrames.size() - 1]->rectangles);
-}
-
-void FakeComposerClient::runVSyncAndWait(std::chrono::nanoseconds maxWait) {
-    int currentFrame = 0;
-    {
-        Mutex::Autolock _l(mStateMutex); // I hope this is ok...
-        currentFrame = static_cast<int>(mFrames.size());
-        requestVSync();
-    }
-    waitUntilFrame(currentFrame + 1, maxWait);
-}
-
-void FakeComposerClient::waitUntilFrame(int targetFrame, std::chrono::nanoseconds maxWait) const {
-    Mutex::Autolock _l(mStateMutex);
-    while (mFrames.size() < static_cast<size_t>(targetFrame)) {
-        android::status_t result = mFramesAvailable.waitRelative(mStateMutex, maxWait.count());
-        if (result == android::TIMED_OUT) {
-            ALOGE("Waiting for frame %d (at frame %zu now) timed out after %lld ns", targetFrame,
-                  mFrames.size(), maxWait.count());
-            return;
-        }
-    }
-}
-
-void FakeComposerClient::clearFrames() {
-    Mutex::Autolock _l(mStateMutex);
-    mFrames.clear();
-    for (const std::unique_ptr<LayerImpl>& layer : mLayers) {
-        if (layer->mValid) {
-            layer->mRenderState.mSwapCount = 0;
-        }
-    }
-}
-
-void FakeComposerClient::onSurfaceFlingerStart() {
-    mSurfaceComposer = nullptr;
-    do {
-        mSurfaceComposer = android::sp<android::SurfaceComposerClient>::make();
-        android::status_t initResult = mSurfaceComposer->initCheck();
-        if (initResult != android::NO_ERROR) {
-            ALOGD("Init result: %d", initResult);
-            mSurfaceComposer = nullptr;
-            std::this_thread::sleep_for(10ms);
-        }
-    } while (mSurfaceComposer == nullptr);
-    ALOGD("SurfaceComposerClient created");
-    mSurfaceComposer->enableVSyncInjections(true);
-}
-
-void FakeComposerClient::onSurfaceFlingerStop() {
-    mSurfaceComposer->enableVSyncInjections(false);
-    mSurfaceComposer->dispose();
-    mSurfaceComposer.clear();
-}
-
-// Includes destroyed layers, stored in order of creation.
-int FakeComposerClient::getLayerCount() const {
-    return mLayers.size();
-}
-
-Layer FakeComposerClient::getLayer(size_t index) const {
-    // NOTE: If/when passing calls through to actual implementation,
-    // this might get more involving.
-    return static_cast<Layer>(index);
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h b/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h
deleted file mode 100644
index 600e765..0000000
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * Copyright 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <chrono>
-
-#include <composer-hal/2.1/ComposerClient.h>
-#include <composer-hal/2.2/ComposerClient.h>
-#include <composer-hal/2.3/ComposerClient.h>
-#include <composer-hal/2.4/ComposerClient.h>
-#include <utils/Condition.h>
-
-#include "MockComposerHal.h"
-#include "RenderState.h"
-
-using namespace android::hardware::graphics::common;
-using namespace android::hardware::graphics::composer;
-using namespace android::hardware::graphics::composer::V2_4;
-using namespace android::hardware::graphics::composer::V2_4::hal;
-using namespace android::hardware;
-using namespace std::chrono_literals;
-
-namespace {
-class LayerImpl;
-class Frame;
-class DelayedEventGenerator;
-} // namespace
-
-namespace android {
-class SurfaceComposerClient;
-} // namespace android
-
-namespace sftest {
-// NOTE: The ID's need to be exactly these. VR composer and parts of
-// the SurfaceFlinger assume the display IDs to have these values
-// despite the enum being documented as a display type.
-// TODO: Reference to actual documentation
-constexpr Display PRIMARY_DISPLAY = static_cast<Display>(HWC_DISPLAY_PRIMARY);
-constexpr Display EXTERNAL_DISPLAY = static_cast<Display>(HWC_DISPLAY_EXTERNAL);
-
-class FakeComposerClient : public ComposerHal {
-public:
-    FakeComposerClient();
-    virtual ~FakeComposerClient();
-
-    void setMockHal(MockComposerHal* mockHal) { mMockHal = mockHal; }
-
-    bool hasCapability(hwc2_capability_t capability) override;
-
-    std::string dumpDebugInfo() override;
-    void registerEventCallback(EventCallback* callback) override;
-    void unregisterEventCallback() override;
-
-    uint32_t getMaxVirtualDisplayCount() override;
-    V2_1::Error createVirtualDisplay(uint32_t width, uint32_t height, V1_0::PixelFormat* format,
-                                     Display* outDisplay) override;
-    V2_1::Error destroyVirtualDisplay(Display display) override;
-    V2_1::Error createLayer(Display display, Layer* outLayer) override;
-    V2_1::Error destroyLayer(Display display, Layer layer) override;
-
-    V2_1::Error getActiveConfig(Display display, Config* outConfig) override;
-    V2_1::Error getClientTargetSupport(Display display, uint32_t width, uint32_t height,
-                                       V1_0::PixelFormat format,
-                                       V1_0::Dataspace dataspace) override;
-    V2_1::Error getColorModes(Display display, hidl_vec<V1_0::ColorMode>* outModes) override;
-    V2_1::Error getDisplayAttribute(Display display, Config config,
-                                    V2_1::IComposerClient::Attribute attribute,
-                                    int32_t* outValue) override;
-    V2_1::Error getDisplayConfigs(Display display, hidl_vec<Config>* outConfigs) override;
-    V2_1::Error getDisplayName(Display display, hidl_string* outName) override;
-    V2_1::Error getDisplayType(Display display, IComposerClient::DisplayType* outType) override;
-    V2_1::Error getDozeSupport(Display display, bool* outSupport) override;
-    V2_1::Error getHdrCapabilities(Display display, hidl_vec<V1_0::Hdr>* outTypes,
-                                   float* outMaxLuminance, float* outMaxAverageLuminance,
-                                   float* outMinLuminance) override;
-
-    V2_1::Error setActiveConfig(Display display, Config config) override;
-    V2_1::Error setColorMode(Display display, V1_0::ColorMode mode) override;
-    V2_1::Error setPowerMode(Display display, V2_1::IComposerClient::PowerMode mode) override;
-    V2_1::Error setVsyncEnabled(Display display, IComposerClient::Vsync enabled) override;
-
-    V2_1::Error setColorTransform(Display display, const float* matrix, int32_t hint) override;
-    V2_1::Error setClientTarget(Display display, buffer_handle_t target, int32_t acquireFence,
-                                int32_t dataspace, const std::vector<hwc_rect_t>& damage) override;
-    V2_1::Error setOutputBuffer(Display display, buffer_handle_t buffer,
-                                int32_t releaseFence) override;
-    V2_1::Error validateDisplay(Display display, std::vector<Layer>* outChangedLayers,
-                                std::vector<IComposerClient::Composition>* outCompositionTypes,
-                                uint32_t* outDisplayRequestMask,
-                                std::vector<Layer>* outRequestedLayers,
-                                std::vector<uint32_t>* outRequestMasks) override;
-    V2_1::Error acceptDisplayChanges(Display display) override;
-    V2_1::Error presentDisplay(Display display, int32_t* outPresentFence,
-                               std::vector<Layer>* outLayers,
-                               std::vector<int32_t>* outReleaseFences) override;
-
-    V2_1::Error setLayerCursorPosition(Display display, Layer layer, int32_t x, int32_t y) override;
-    V2_1::Error setLayerBuffer(Display display, Layer layer, buffer_handle_t buffer,
-                               int32_t acquireFence) override;
-    V2_1::Error setLayerSurfaceDamage(Display display, Layer layer,
-                                      const std::vector<hwc_rect_t>& damage) override;
-    V2_1::Error setLayerBlendMode(Display display, Layer layer, int32_t mode) override;
-    V2_1::Error setLayerColor(Display display, Layer layer, IComposerClient::Color color) override;
-    V2_1::Error setLayerCompositionType(Display display, Layer layer, int32_t type) override;
-    V2_1::Error setLayerDataspace(Display display, Layer layer, int32_t dataspace) override;
-    V2_1::Error setLayerDisplayFrame(Display display, Layer layer,
-                                     const hwc_rect_t& frame) override;
-    V2_1::Error setLayerPlaneAlpha(Display display, Layer layer, float alpha) override;
-    V2_1::Error setLayerSidebandStream(Display display, Layer layer,
-                                       buffer_handle_t stream) override;
-    V2_1::Error setLayerSourceCrop(Display display, Layer layer, const hwc_frect_t& crop) override;
-    V2_1::Error setLayerTransform(Display display, Layer layer, int32_t transform) override;
-    V2_1::Error setLayerVisibleRegion(Display display, Layer layer,
-                                      const std::vector<hwc_rect_t>& visible) override;
-    V2_1::Error setLayerZOrder(Display display, Layer layer, uint32_t z) override;
-
-    // Composer 2.2
-    V2_1::Error getPerFrameMetadataKeys(
-            Display display,
-            std::vector<V2_2::IComposerClient::PerFrameMetadataKey>* outKeys) override;
-    V2_1::Error setLayerPerFrameMetadata(
-            Display display, Layer layer,
-            const std::vector<V2_2::IComposerClient::PerFrameMetadata>& metadata) override;
-
-    V2_1::Error getReadbackBufferAttributes(
-            Display display, graphics::common::V1_1::PixelFormat* outFormat,
-            graphics::common::V1_1::Dataspace* outDataspace) override;
-    V2_1::Error setReadbackBuffer(Display display, const native_handle_t* bufferHandle,
-                                  android::base::unique_fd fenceFd) override;
-    V2_1::Error getReadbackBufferFence(Display display,
-                                       android::base::unique_fd* outFenceFd) override;
-    V2_1::Error createVirtualDisplay_2_2(uint32_t width, uint32_t height,
-                                         graphics::common::V1_1::PixelFormat* format,
-                                         Display* outDisplay) override;
-    V2_1::Error getClientTargetSupport_2_2(Display display, uint32_t width, uint32_t height,
-                                           graphics::common::V1_1::PixelFormat format,
-                                           graphics::common::V1_1::Dataspace dataspace) override;
-    V2_1::Error setPowerMode_2_2(Display display, V2_2::IComposerClient::PowerMode mode) override;
-
-    V2_1::Error setLayerFloatColor(Display display, Layer layer,
-                                   V2_2::IComposerClient::FloatColor color) override;
-
-    V2_1::Error getColorModes_2_2(Display display,
-                                  hidl_vec<graphics::common::V1_1::ColorMode>* outModes) override;
-    V2_1::Error getRenderIntents(
-            Display display, graphics::common::V1_1::ColorMode mode,
-            std::vector<graphics::common::V1_1::RenderIntent>* outIntents) override;
-    V2_1::Error setColorMode_2_2(Display display, graphics::common::V1_1::ColorMode mode,
-                                 graphics::common::V1_1::RenderIntent intent) override;
-
-    std::array<float, 16> getDataspaceSaturationMatrix(
-            graphics::common::V1_1::Dataspace dataspace) override;
-
-    // Composer 2.3
-    V2_1::Error getPerFrameMetadataKeys_2_3(
-            Display display,
-            std::vector<V2_3::IComposerClient::PerFrameMetadataKey>* outKeys) override;
-
-    V2_1::Error setColorMode_2_3(Display display, graphics::common::V1_2::ColorMode mode,
-                                 graphics::common::V1_1::RenderIntent intent) override;
-
-    V2_1::Error getRenderIntents_2_3(
-            Display display, graphics::common::V1_2::ColorMode mode,
-            std::vector<graphics::common::V1_1::RenderIntent>* outIntents) override;
-
-    V2_1::Error getColorModes_2_3(Display display,
-                                  hidl_vec<graphics::common::V1_2::ColorMode>* outModes) override;
-
-    V2_1::Error getClientTargetSupport_2_3(Display display, uint32_t width, uint32_t height,
-                                           graphics::common::V1_2::PixelFormat format,
-                                           graphics::common::V1_2::Dataspace dataspace) override;
-    V2_1::Error getReadbackBufferAttributes_2_3(
-            Display display, graphics::common::V1_2::PixelFormat* outFormat,
-            graphics::common::V1_2::Dataspace* outDataspace) override;
-    V2_1::Error getHdrCapabilities_2_3(Display display,
-                                       hidl_vec<graphics::common::V1_2::Hdr>* outTypes,
-                                       float* outMaxLuminance, float* outMaxAverageLuminance,
-                                       float* outMinLuminance) override;
-    V2_1::Error setLayerPerFrameMetadata_2_3(
-            Display display, Layer layer,
-            const std::vector<V2_3::IComposerClient::PerFrameMetadata>& metadata) override;
-    V2_1::Error getDisplayIdentificationData(Display display, uint8_t* outPort,
-                                             std::vector<uint8_t>* outData) override;
-    V2_1::Error setLayerColorTransform(Display display, Layer layer, const float* matrix) override;
-    V2_1::Error getDisplayedContentSamplingAttributes(
-            uint64_t display, graphics::common::V1_2::PixelFormat& format,
-            graphics::common::V1_2::Dataspace& dataspace,
-            hidl_bitfield<V2_3::IComposerClient::FormatColorComponent>& componentMask) override;
-    V2_1::Error setDisplayedContentSamplingEnabled(
-            uint64_t display, V2_3::IComposerClient::DisplayedContentSampling enable,
-            hidl_bitfield<V2_3::IComposerClient::FormatColorComponent> componentMask,
-            uint64_t maxFrames) override;
-    V2_1::Error getDisplayedContentSample(uint64_t display, uint64_t maxFrames, uint64_t timestamp,
-                                          uint64_t& frameCount,
-                                          hidl_vec<uint64_t>& sampleComponent0,
-                                          hidl_vec<uint64_t>& sampleComponent1,
-                                          hidl_vec<uint64_t>& sampleComponent2,
-                                          hidl_vec<uint64_t>& sampleComponent3) override;
-    V2_1::Error getDisplayCapabilities(
-            Display display,
-            std::vector<V2_3::IComposerClient::DisplayCapability>* outCapabilities) override;
-    V2_1::Error setLayerPerFrameMetadataBlobs(
-            Display display, Layer layer,
-            std::vector<V2_3::IComposerClient::PerFrameMetadataBlob>& blobs) override;
-    V2_1::Error getDisplayBrightnessSupport(Display display, bool* outSupport) override;
-    V2_1::Error setDisplayBrightness(Display display, float brightness) override;
-
-    // Composer 2.4
-    void registerEventCallback_2_4(EventCallback_2_4* callback) override;
-
-    void unregisterEventCallback_2_4() override;
-
-    V2_4::Error getDisplayCapabilities_2_4(
-            Display display,
-            std::vector<V2_4::IComposerClient::DisplayCapability>* outCapabilities) override;
-    V2_4::Error getDisplayConnectionType(
-            Display display, V2_4::IComposerClient::DisplayConnectionType* outType) override;
-    V2_4::Error getDisplayAttribute_2_4(Display display, Config config,
-                                        IComposerClient::Attribute attribute,
-                                        int32_t* outValue) override;
-    V2_4::Error getDisplayVsyncPeriod(Display display,
-                                      V2_4::VsyncPeriodNanos* outVsyncPeriod) override;
-    V2_4::Error setActiveConfigWithConstraints(
-            Display display, Config config,
-            const V2_4::IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
-            VsyncPeriodChangeTimeline* outTimeline) override;
-    V2_4::Error setAutoLowLatencyMode(Display display, bool on) override;
-    V2_4::Error getSupportedContentTypes(
-            Display display,
-            std::vector<IComposerClient::ContentType>* outSupportedContentTypes) override;
-    V2_4::Error setContentType(Display display, IComposerClient::ContentType type) override;
-    V2_4::Error validateDisplay_2_4(
-            Display display, std::vector<Layer>* outChangedLayers,
-            std::vector<IComposerClient::Composition>* outCompositionTypes,
-            uint32_t* outDisplayRequestMask, std::vector<Layer>* outRequestedLayers,
-            std::vector<uint32_t>* outRequestMasks,
-            IComposerClient::ClientTargetProperty* outClientTargetProperty) override;
-    V2_4::Error setLayerGenericMetadata(Display display, Layer layer, const std::string& key,
-                                        bool mandatory, const std::vector<uint8_t>& value) override;
-    V2_4::Error getLayerGenericMetadataKeys(
-            std::vector<IComposerClient::LayerGenericMetadataKey>* outKeys) override;
-
-    void setClient(ComposerClient* client);
-
-    void requestVSync(uint64_t vsyncTime = 0);
-    // We don't want tests hanging, so always use a timeout. Remember
-    // to always check the number of frames with test ASSERT_!
-    // Wait until next frame is rendered after requesting vsync.
-    void runVSyncAndWait(std::chrono::nanoseconds maxWait = 100ms);
-    void runVSyncAfter(std::chrono::nanoseconds wait);
-
-    int getFrameCount() const;
-    // We don't want tests hanging, so always use a timeout. Remember
-    // to always check the number of frames with test ASSERT_!
-    void waitUntilFrame(int targetFrame, std::chrono::nanoseconds maxWait = 100ms) const;
-    std::vector<RenderState> getFrameRects(int frame) const;
-    std::vector<RenderState> getLatestFrame() const;
-    void clearFrames();
-
-    void onSurfaceFlingerStart();
-    void onSurfaceFlingerStop();
-
-    int getLayerCount() const;
-    Layer getLayer(size_t index) const;
-
-    void hotplugDisplay(Display display, IComposerCallback::Connection state);
-    void refreshDisplay(Display display);
-
-private:
-    LayerImpl& getLayerImpl(Layer handle);
-
-    EventCallback* mEventCallback;
-    EventCallback_2_4* mEventCallback_2_4;
-    Config mCurrentConfig;
-    bool mVsyncEnabled;
-    std::vector<std::unique_ptr<LayerImpl>> mLayers;
-    std::vector<std::unique_ptr<Frame>> mFrames;
-    // Using a pointer to hide the implementation into the CPP file.
-    std::unique_ptr<DelayedEventGenerator> mDelayedEventGenerator;
-    android::sp<android::SurfaceComposerClient> mSurfaceComposer; // For VSync injections
-    mutable android::Mutex mStateMutex;
-    mutable android::Condition mFramesAvailable;
-
-    MockComposerHal* mMockHal = nullptr;
-};
-
-} // namespace sftest
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerService.cpp b/services/surfaceflinger/tests/fakehwc/FakeComposerService.cpp
deleted file mode 100644
index c656eed..0000000
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerService.cpp
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-#define LOG_NDEBUG 0
-#undef LOG_TAG
-#define LOG_TAG "FakeHwcService"
-#include <log/log.h>
-
-#include "FakeComposerService.h"
-
-using namespace android::hardware;
-using namespace android::hardware::graphics::composer;
-
-namespace sftest {
-
-FakeComposerService_2_1::FakeComposerService_2_1(android::sp<ComposerClient>& client)
-      : mClient(client) {}
-
-FakeComposerService_2_1::~FakeComposerService_2_1() {
-    ALOGI("Maybe killing client %p", mClient.get());
-    // Rely on sp to kill the client.
-}
-
-Return<void> FakeComposerService_2_1::getCapabilities(getCapabilities_cb hidl_cb) {
-    ALOGI("FakeComposerService::getCapabilities");
-    hidl_cb(hidl_vec<Capability>());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_1::dumpDebugInfo(dumpDebugInfo_cb hidl_cb) {
-    ALOGI("FakeComposerService::dumpDebugInfo");
-    hidl_cb(hidl_string());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_1::createClient(createClient_cb hidl_cb) {
-    ALOGI("FakeComposerService::createClient %p", mClient.get());
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_1::Error::NONE, mClient);
-    return Void();
-}
-
-FakeComposerService_2_2::FakeComposerService_2_2(android::sp<ComposerClient>& client)
-      : mClient(client) {}
-
-FakeComposerService_2_2::~FakeComposerService_2_2() {
-    ALOGI("Maybe killing client %p", mClient.get());
-    // Rely on sp to kill the client.
-}
-
-Return<void> FakeComposerService_2_2::getCapabilities(getCapabilities_cb hidl_cb) {
-    ALOGI("FakeComposerService::getCapabilities");
-    hidl_cb(hidl_vec<Capability>());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_2::dumpDebugInfo(dumpDebugInfo_cb hidl_cb) {
-    ALOGI("FakeComposerService::dumpDebugInfo");
-    hidl_cb(hidl_string());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_2::createClient(createClient_cb hidl_cb) {
-    ALOGI("FakeComposerService::createClient %p", mClient.get());
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_1::Error::NONE, mClient);
-    return Void();
-}
-
-FakeComposerService_2_3::FakeComposerService_2_3(android::sp<ComposerClient>& client)
-      : mClient(client) {}
-
-FakeComposerService_2_3::~FakeComposerService_2_3() {
-    ALOGI("Maybe killing client %p", mClient.get());
-    // Rely on sp to kill the client.
-}
-
-Return<void> FakeComposerService_2_3::getCapabilities(getCapabilities_cb hidl_cb) {
-    ALOGI("FakeComposerService::getCapabilities");
-    hidl_cb(hidl_vec<Capability>());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_3::dumpDebugInfo(dumpDebugInfo_cb hidl_cb) {
-    ALOGI("FakeComposerService::dumpDebugInfo");
-    hidl_cb(hidl_string());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_3::createClient(createClient_cb hidl_cb) {
-    LOG_ALWAYS_FATAL("createClient called on FakeComposerService_2_3");
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_1::Error::UNSUPPORTED, nullptr);
-    return Void();
-}
-
-Return<void> FakeComposerService_2_3::createClient_2_3(createClient_2_3_cb hidl_cb) {
-    ALOGI("FakeComposerService_2_3::createClient_2_3 %p", mClient.get());
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_1::Error::NONE, mClient);
-    return Void();
-}
-
-FakeComposerService_2_4::FakeComposerService_2_4(android::sp<ComposerClient>& client)
-      : mClient(client) {}
-
-FakeComposerService_2_4::~FakeComposerService_2_4() {
-    ALOGI("Maybe killing client %p", mClient.get());
-    // Rely on sp to kill the client.
-}
-
-Return<void> FakeComposerService_2_4::getCapabilities(getCapabilities_cb hidl_cb) {
-    ALOGI("FakeComposerService::getCapabilities");
-    hidl_cb(hidl_vec<Capability>());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_4::dumpDebugInfo(dumpDebugInfo_cb hidl_cb) {
-    ALOGI("FakeComposerService::dumpDebugInfo");
-    hidl_cb(hidl_string());
-    return Void();
-}
-
-Return<void> FakeComposerService_2_4::createClient(createClient_cb hidl_cb) {
-    LOG_ALWAYS_FATAL("createClient called on FakeComposerService_2_4");
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_1::Error::UNSUPPORTED, nullptr);
-    return Void();
-}
-
-Return<void> FakeComposerService_2_4::createClient_2_3(createClient_2_3_cb hidl_cb) {
-    LOG_ALWAYS_FATAL("createClient_2_3 called on FakeComposerService_2_4");
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_1::Error::UNSUPPORTED, nullptr);
-    return Void();
-}
-
-Return<void> FakeComposerService_2_4::createClient_2_4(createClient_2_4_cb hidl_cb) {
-    ALOGI("FakeComposerService_2_4::createClient_2_4 %p", mClient.get());
-    if (!mClient->init()) {
-        LOG_ALWAYS_FATAL("failed to initialize ComposerClient");
-    }
-    hidl_cb(V2_4::Error::NONE, mClient);
-    return Void();
-}
-
-} // namespace sftest
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerService.h b/services/surfaceflinger/tests/fakehwc/FakeComposerService.h
deleted file mode 100644
index 47f970f..0000000
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerService.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <android/hardware/graphics/composer/2.4/IComposer.h>
-#include <composer-hal/2.1/ComposerClient.h>
-#include <composer-hal/2.2/ComposerClient.h>
-#include <composer-hal/2.3/ComposerClient.h>
-#include <composer-hal/2.4/ComposerClient.h>
-
-using android::hardware::Return;
-
-using ComposerClient = android::hardware::graphics::composer::V2_4::hal::ComposerClient;
-
-namespace sftest {
-
-using IComposer_2_1 = android::hardware::graphics::composer::V2_1::IComposer;
-
-class FakeComposerService_2_1 : public IComposer_2_1 {
-public:
-    explicit FakeComposerService_2_1(android::sp<ComposerClient>& client);
-    virtual ~FakeComposerService_2_1();
-
-    Return<void> getCapabilities(getCapabilities_cb hidl_cb) override;
-    Return<void> dumpDebugInfo(dumpDebugInfo_cb hidl_cb) override;
-    Return<void> createClient(createClient_cb hidl_cb) override;
-
-private:
-    android::sp<ComposerClient> mClient;
-};
-
-using IComposer_2_2 = android::hardware::graphics::composer::V2_2::IComposer;
-class FakeComposerService_2_2 : public IComposer_2_2 {
-public:
-    explicit FakeComposerService_2_2(android::sp<ComposerClient>& client);
-    virtual ~FakeComposerService_2_2();
-
-    Return<void> getCapabilities(getCapabilities_cb hidl_cb) override;
-    Return<void> dumpDebugInfo(dumpDebugInfo_cb hidl_cb) override;
-    Return<void> createClient(createClient_cb hidl_cb) override;
-
-private:
-    android::sp<ComposerClient> mClient;
-};
-
-using IComposer_2_3 = android::hardware::graphics::composer::V2_3::IComposer;
-class FakeComposerService_2_3 : public IComposer_2_3 {
-public:
-    explicit FakeComposerService_2_3(android::sp<ComposerClient>& client);
-    virtual ~FakeComposerService_2_3();
-
-    Return<void> getCapabilities(getCapabilities_cb hidl_cb) override;
-    Return<void> dumpDebugInfo(dumpDebugInfo_cb hidl_cb) override;
-    Return<void> createClient(createClient_cb hidl_cb) override;
-    Return<void> createClient_2_3(createClient_2_3_cb hidl_cb) override;
-
-private:
-    android::sp<ComposerClient> mClient;
-};
-
-using IComposer_2_4 = android::hardware::graphics::composer::V2_4::IComposer;
-
-class FakeComposerService_2_4 : public IComposer_2_4 {
-public:
-    explicit FakeComposerService_2_4(android::sp<ComposerClient>& client);
-    virtual ~FakeComposerService_2_4();
-
-    Return<void> getCapabilities(getCapabilities_cb hidl_cb) override;
-    Return<void> dumpDebugInfo(dumpDebugInfo_cb hidl_cb) override;
-    Return<void> createClient(createClient_cb hidl_cb) override;
-    Return<void> createClient_2_3(createClient_2_3_cb hidl_cb) override;
-    Return<void> createClient_2_4(createClient_2_4_cb hidl_cb) override;
-
-private:
-    android::sp<ComposerClient> mClient;
-};
-
-} // namespace sftest
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp b/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp
deleted file mode 100644
index 1cea25a..0000000
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-#define LOG_NDEBUG 0
-#undef LOG_TAG
-#define LOG_TAG "FakeHwcUtil"
-#include <log/log.h>
-
-#include "FakeComposerUtils.h"
-#include "RenderState.h"
-
-#include "SurfaceFlinger.h" // Get the name of the service...
-
-#include <binder/IServiceManager.h>
-#include <cutils/properties.h>
-#include <hidl/ServiceManagement.h>
-
-#include <iomanip>
-#include <thread>
-
-using android::String16;
-using android::sp;
-using namespace std::chrono_literals;
-using namespace sftest;
-using std::setw;
-
-namespace sftest {
-
-// clang-format off
-inline void printSourceRectAligned(::std::ostream& os, const hwc_frect_t& sourceRect, int align) {
-    os << std::fixed << std::setprecision(1) << "("
-       << setw(align) << sourceRect.left << setw(0) << ","
-       << setw(align) << sourceRect.top << setw(0) << ","
-       << setw(align) << sourceRect.right << setw(0) << ","
-       << setw(align) << sourceRect.bottom << setw(0) << ")";
-}
-
-inline void printDisplayRectAligned(::std::ostream& os, const hwc_rect_t& displayRect, int align) {
-    os << "("
-       << setw(align) << displayRect.left << setw(0) << ","
-       << setw(align) << displayRect.top << setw(0) << ","
-       << setw(align) << displayRect.right << setw(0) << ","
-       << setw(align) << displayRect.bottom << setw(0) << ")";
-}
-// clang-format on
-
-inline ::std::ostream& operator<<(::std::ostream& os, const sftest::RenderState& state) {
-    printSourceRectAligned(os, state.mSourceCrop, 7);
-    os << "->";
-    printDisplayRectAligned(os, state.mDisplayFrame, 5);
-    return os << " Swaps:" << state.mSwapCount << " Alpha:" << std::setprecision(3)
-              << state.mPlaneAlpha << " Xform:" << state.mTransform;
-}
-
-// Helper for verifying the parts of the RenderState
-template <typename T>
-bool valuesMatch(::testing::AssertionResult& message, const T& ref, const T& val,
-                 const char* name) {
-    if (ref != val) {
-        message = message << "Expected " << name << ":" << ref << ", got:" << val << ".";
-        return false;
-    }
-    return true;
-}
-
-::testing::AssertionResult rectsAreSame(const RenderState& ref, const RenderState& val) {
-    // TODO: Message could start as success and be assigned as failure.
-    // Only problem is that utility assumes it to be failure and just adds stuff. Would
-    // need still special case the initial failure in the utility?
-    // TODO: ... or would it be possible to break this back to gtest primitives?
-    ::testing::AssertionResult message = ::testing::AssertionFailure();
-    bool passes = true;
-
-    // The work here is mostly about providing good log strings for differences
-    passes &= valuesMatch(message, ref.mDisplayFrame, val.mDisplayFrame, "display frame");
-    passes &= valuesMatch(message, ref.mPlaneAlpha, val.mPlaneAlpha, "alpha");
-    passes &= valuesMatch(message, ref.mSwapCount, val.mSwapCount, "swap count");
-    passes &= valuesMatch(message, ref.mSourceCrop, val.mSourceCrop, "source crop");
-    // ... add more
-    if (passes) {
-        return ::testing::AssertionSuccess();
-    }
-    return message;
-}
-
-::testing::AssertionResult framesAreSame(const std::vector<RenderState>& ref,
-                                         const std::vector<RenderState>& val) {
-    ::testing::AssertionResult message = ::testing::AssertionFailure();
-    bool passed = true;
-    if (ref.size() != val.size()) {
-        message << "Expected " << ref.size() << " rects, got " << val.size() << ".";
-        passed = false;
-    }
-    for (size_t rectIndex = 0; rectIndex < std::min(ref.size(), val.size()); rectIndex++) {
-        ::testing::AssertionResult rectResult = rectsAreSame(ref[rectIndex], val[rectIndex]);
-        if (rectResult == false) {
-            message << "First different rect at " << rectIndex << ": " << rectResult.message();
-            passed = false;
-            break;
-        }
-    }
-
-    if (passed) {
-        return ::testing::AssertionSuccess();
-    } else {
-        message << "\nReference:";
-        for (auto state = ref.begin(); state != ref.end(); ++state) {
-            message << "\n" << *state;
-        }
-        message << "\nActual:";
-        for (auto state = val.begin(); state != val.end(); ++state) {
-            message << "\n" << *state;
-        }
-    }
-    return message;
-}
-
-void startSurfaceFlinger() {
-    ALOGI("Start SurfaceFlinger");
-    system("start surfaceflinger");
-
-    sp<android::IServiceManager> sm(android::defaultServiceManager());
-    sp<android::IBinder> sf;
-    while (sf == nullptr) {
-        std::this_thread::sleep_for(10ms);
-        sf = sm->checkService(String16(android::SurfaceFlinger::getServiceName()));
-    }
-    ALOGV("SurfaceFlinger running");
-}
-
-void stopSurfaceFlinger() {
-    ALOGI("Stop SurfaceFlinger");
-    system("stop surfaceflinger");
-    sp<android::IServiceManager> sm(android::defaultServiceManager());
-    sp<android::IBinder> sf;
-    while (sf != nullptr) {
-        std::this_thread::sleep_for(10ms);
-        sf = sm->checkService(String16(android::SurfaceFlinger::getServiceName()));
-    }
-    ALOGV("SurfaceFlinger stopped");
-}
-
-////////////////////////////////////////////////
-
-void FakeHwcEnvironment::SetUp() {
-    ALOGI("Test env setup");
-    system("setenforce 0");
-    system("stop");
-    property_set("debug.sf.nobootanimation", "1");
-    {
-        char value[PROPERTY_VALUE_MAX];
-        property_get("debug.sf.nobootanimation", value, "0");
-        LOG_FATAL_IF(atoi(value) != 1, "boot skip not set");
-    }
-    // TODO: Try registering the mock as the default service instead.
-    property_set("debug.sf.hwc_service_name", "mock");
-
-    // This allows tests/SF to register/load a HIDL service not listed in manifest files.
-    android::hardware::details::setTrebleTestingOverride(true);
-    property_set("debug.sf.treble_testing_override", "true");
-}
-
-void FakeHwcEnvironment::TearDown() {
-    ALOGI("Test env tear down");
-    system("stop");
-    // Wait for mock call signaling teardown?
-    property_set("debug.sf.nobootanimation", "0");
-    property_set("debug.sf.hwc_service_name", "default");
-    system("setenforce 1");
-    ALOGI("Test env tear down - done");
-}
-
-} // namespace sftest
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h b/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h
deleted file mode 100644
index 383a111..0000000
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include "FakeComposerClient.h"
-
-#include <gui/SurfaceComposerClient.h>
-#include <log/log.h>
-#include <gtest/gtest.h>
-
-// clang-format off
-// Note: This needs to reside in the global namespace for the GTest to use it
-inline ::std::ostream& operator<<(::std::ostream& os, const hwc_rect_t& rect) {
-    return os << "(" << rect.left << ","
-              << rect.top << ","
-              << rect.right << ","
-              << rect.bottom << ")";
-}
-
-inline ::std::ostream& operator<<(::std::ostream& os, const hwc_frect_t& rect) {
-    return os << "(" << rect.left << ","
-              << rect.top << ","
-              << rect.right << ","
-              << rect.bottom << ")";
-}
-// clang-format on
-
-namespace sftest {
-
-class RenderState;
-
-// clang-format off
-inline bool operator==(const hwc_rect_t& a, const hwc_rect_t& b) {
-    return a.top == b.top &&
-            a.left == b.left &&
-            a.bottom == b.bottom &&
-            a.right == b.right;
-}
-
-inline bool operator==(const hwc_frect_t& a, const hwc_frect_t& b) {
-    return a.top == b.top &&
-            a.left == b.left &&
-            a.bottom == b.bottom &&
-            a.right == b.right;
-}
-// clang-format on
-
-inline bool operator!=(const hwc_rect_t& a, const hwc_rect_t& b) {
-    return !(a == b);
-}
-
-inline bool operator!=(const hwc_frect_t& a, const hwc_frect_t& b) {
-    return !(a == b);
-}
-
-::testing::AssertionResult rectsAreSame(const RenderState& ref, const RenderState& val);
-::testing::AssertionResult framesAreSame(const std::vector<RenderState>& ref,
-                                         const std::vector<RenderState>& val);
-
-void startSurfaceFlinger();
-void stopSurfaceFlinger();
-
-class FakeHwcEnvironment : public ::testing::Environment {
-public:
-    virtual ~FakeHwcEnvironment() {}
-    void SetUp() override;
-    void TearDown() override;
-};
-
-/*
- * All surface state changes are supposed to happen inside a global
- * transaction. TransactionScope object at the beginning of
- * scope automates the process. The resulting scope gives a visual cue
- * on the span of the transaction as well.
- *
- * Closing the transaction is synchronous, i.e., it waits for
- * SurfaceFlinger to composite one frame. Now, the FakeComposerClient
- * is built to explicitly request vsyncs one at the time. A delayed
- * request must be made before closing the transaction or the test
- * thread stalls until SurfaceFlinger does an emergency vsync by
- * itself. TransactionScope encapsulates this vsync magic.
- */
-class TransactionScope : public android::SurfaceComposerClient::Transaction {
-public:
-    explicit TransactionScope(FakeComposerClient& composer) : Transaction(), mComposer(composer) {}
-
-    ~TransactionScope() {
-        int frameCount = mComposer.getFrameCount();
-        mComposer.runVSyncAfter(1ms);
-        LOG_ALWAYS_FATAL_IF(android::NO_ERROR != apply());
-        // Make sure that exactly one frame has been rendered.
-        mComposer.waitUntilFrame(frameCount + 1);
-        //        LOG_ALWAYS_FATAL_IF(frameCount + 1 != mComposer.getFrameCount(),
-        //                            "Unexpected frame advance. Delta: %d",
-        //                            mComposer.getFrameCount() - frameCount);
-    }
-
-    FakeComposerClient& mComposer;
-};
-
-} // namespace sftest
diff --git a/services/surfaceflinger/tests/fakehwc/MockComposerHal.h b/services/surfaceflinger/tests/fakehwc/MockComposerHal.h
deleted file mode 100644
index 5dc3778..0000000
--- a/services/surfaceflinger/tests/fakehwc/MockComposerHal.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <composer-hal/2.4/ComposerClient.h>
-
-#include <gmock/gmock.h>
-
-using namespace android::hardware::graphics::common;
-using namespace android::hardware::graphics::composer;
-using namespace android::hardware::graphics::composer::V2_4;
-using namespace android::hardware::graphics::composer::V2_4::hal;
-using namespace android::hardware;
-using namespace std::chrono_literals;
-
-namespace sftest {
-
-// Mock class for ComposerHal. Implements only the functions used in the test.
-class MockComposerHal {
-public:
-    MOCK_METHOD2(getActiveConfig, V2_1::Error(Display, Config*));
-    MOCK_METHOD4(getDisplayAttribute_2_4,
-                 V2_4::Error(Display, Config, V2_4::IComposerClient::Attribute, int32_t*));
-    MOCK_METHOD2(getDisplayConfigs, V2_1::Error(Display, hidl_vec<Config>*));
-    MOCK_METHOD2(setActiveConfig, V2_1::Error(Display, Config));
-    MOCK_METHOD2(getDisplayVsyncPeriod, V2_4::Error(Display, V2_4::VsyncPeriodNanos*));
-    MOCK_METHOD4(setActiveConfigWithConstraints,
-                 V2_4::Error(Display, Config,
-                             const V2_4::IComposerClient::VsyncPeriodChangeConstraints&,
-                             VsyncPeriodChangeTimeline*));
-};
-
-} // namespace sftest
\ No newline at end of file
diff --git a/services/surfaceflinger/tests/fakehwc/RenderState.h b/services/surfaceflinger/tests/fakehwc/RenderState.h
deleted file mode 100644
index 40193f2..0000000
--- a/services/surfaceflinger/tests/fakehwc/RenderState.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <vector>
-
-namespace sftest {
-// Description of a rendered rectangle.  Should only contain
-// instructions necessary to rasterize the rectangle. The full scene
-// is given as a sorted list of rectangles, bottom layer at index 0.
-class RenderState {
-public:
-    RenderState() = default;
-    // Default copy-ctor
-
-    hwc_rect_t mDisplayFrame = {0, 0, 0, 0};
-    hwc_frect_t mSourceCrop = {0.f, 0.f, 0.f, 0.f};
-    std::vector<hwc_rect_t> mVisibleRegion;
-    hwc2_blend_mode_t mBlendMode = HWC2_BLEND_MODE_NONE;
-    buffer_handle_t mBuffer = 0;
-    uint32_t mSwapCount = 0;   // How many set buffer calls to the layer.
-    int32_t mAcquireFence = 0; // Probably should not be here.
-    float mPlaneAlpha = 0.f;
-    hwc_color_t mLayerColor = {0, 0, 0, 0};
-    hwc_transform_t mTransform = static_cast<hwc_transform_t>(0);
-};
-
-} // namespace sftest
diff --git a/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp b/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp
deleted file mode 100644
index 1d3401a..0000000
--- a/services/surfaceflinger/tests/fakehwc/SFFakeHwc_test.cpp
+++ /dev/null
@@ -1,1794 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-#pragma clang diagnostic ignored "-Wextra"
-
-// #define LOG_NDEBUG 0
-#undef LOG_TAG
-#define LOG_TAG "FakeHwcTest"
-
-#include "FakeComposerClient.h"
-#include "FakeComposerService.h"
-#include "FakeComposerUtils.h"
-#include "MockComposerHal.h"
-
-#include <binder/Parcel.h>
-#include <gui/AidlStatusUtil.h>
-#include <gui/DisplayEventReceiver.h>
-#include <gui/ISurfaceComposer.h>
-#include <gui/LayerDebugInfo.h>
-#include <gui/LayerState.h>
-#include <gui/Surface.h>
-#include <gui/SurfaceComposerClient.h>
-
-#include <android/hidl/manager/1.0/IServiceManager.h>
-#include <android/looper.h>
-#include <android/native_window.h>
-#include <binder/ProcessState.h>
-#include <hwbinder/ProcessState.h>
-#include <log/log.h>
-#include <private/gui/ComposerService.h>
-#include <private/gui/ComposerServiceAIDL.h>
-#include <ui/DisplayMode.h>
-#include <ui/DynamicDisplayInfo.h>
-#include <utils/Looper.h>
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-
-#include <limits>
-#include <thread>
-
-using namespace std::chrono_literals;
-
-using namespace android;
-using namespace android::hardware;
-
-using namespace sftest;
-
-namespace {
-
-// Mock test helpers
-using ::testing::_;
-using ::testing::DoAll;
-using ::testing::Return;
-using ::testing::SetArgPointee;
-
-using Transaction = SurfaceComposerClient::Transaction;
-using Attribute = V2_4::IComposerClient::Attribute;
-using Display = V2_1::Display;
-
-///////////////////////////////////////////////
-constexpr PhysicalDisplayId physicalIdFromHwcDisplayId(Display hwcId) {
-    return PhysicalDisplayId::fromPort(hwcId);
-}
-constexpr PhysicalDisplayId kPrimaryDisplayId = physicalIdFromHwcDisplayId(PRIMARY_DISPLAY);
-constexpr PhysicalDisplayId kExternalDisplayId = physicalIdFromHwcDisplayId(EXTERNAL_DISPLAY);
-
-struct TestColor {
-public:
-    uint8_t r;
-    uint8_t g;
-    uint8_t b;
-    uint8_t a;
-};
-
-constexpr static TestColor RED = {195, 63, 63, 255};
-constexpr static TestColor LIGHT_RED = {255, 177, 177, 255};
-constexpr static TestColor GREEN = {63, 195, 63, 255};
-constexpr static TestColor BLUE = {63, 63, 195, 255};
-constexpr static TestColor LIGHT_GRAY = {200, 200, 200, 255};
-
-// Fill an RGBA_8888 formatted surface with a single color.
-static void fillSurfaceRGBA8(const sp<SurfaceControl>& sc, const TestColor& color,
-                             bool unlock = true) {
-    ANativeWindow_Buffer outBuffer;
-    sp<Surface> s = sc->getSurface();
-    ASSERT_TRUE(s != nullptr);
-    ASSERT_EQ(NO_ERROR, s->lock(&outBuffer, nullptr));
-    uint8_t* img = reinterpret_cast<uint8_t*>(outBuffer.bits);
-    for (int y = 0; y < outBuffer.height; y++) {
-        for (int x = 0; x < outBuffer.width; x++) {
-            uint8_t* pixel = img + (4 * (y * outBuffer.stride + x));
-            pixel[0] = color.r;
-            pixel[1] = color.g;
-            pixel[2] = color.b;
-            pixel[3] = color.a;
-        }
-    }
-    if (unlock) {
-        ASSERT_EQ(NO_ERROR, s->unlockAndPost());
-    }
-}
-
-inline RenderState makeSimpleRect(int left, int top, int right, int bottom) {
-    RenderState res;
-    res.mDisplayFrame = hwc_rect_t{left, top, right, bottom};
-    res.mPlaneAlpha = 1.0f;
-    res.mSwapCount = 0;
-    res.mSourceCrop = hwc_frect_t{0.f, 0.f, static_cast<float>(right - left),
-                                  static_cast<float>(bottom - top)};
-    return res;
-}
-
-inline RenderState makeSimpleRect(unsigned int left, unsigned int top, unsigned int right,
-                                  unsigned int bottom) {
-    EXPECT_LE(left, static_cast<unsigned int>(INT_MAX));
-    EXPECT_LE(top, static_cast<unsigned int>(INT_MAX));
-    EXPECT_LE(right, static_cast<unsigned int>(INT_MAX));
-    EXPECT_LE(bottom, static_cast<unsigned int>(INT_MAX));
-    return makeSimpleRect(static_cast<int>(left), static_cast<int>(top), static_cast<int>(right),
-                          static_cast<int>(bottom));
-}
-
-///////////////////////////////////////////////
-template <typename FakeComposerService>
-class DisplayTest : public ::testing::Test {
-protected:
-    struct TestConfig {
-        int32_t id;
-        int32_t w;
-        int32_t h;
-        int32_t vsyncPeriod;
-        int32_t group;
-    };
-
-    static int processDisplayEvents(int /*fd*/, int /*events*/, void* data) {
-        auto self = static_cast<DisplayTest*>(data);
-
-        ssize_t n;
-        DisplayEventReceiver::Event buffer[1];
-
-        while ((n = self->mReceiver->getEvents(buffer, 1)) > 0) {
-            for (int i = 0; i < n; i++) {
-                self->mReceivedDisplayEvents.push_back(buffer[i]);
-            }
-        }
-        ALOGD_IF(n < 0, "Error reading events (%s)", strerror(-n));
-        return 1;
-    }
-
-    Error getDisplayAttributeNoMock(Display display, Config config,
-                                    V2_4::IComposerClient::Attribute attribute, int32_t* outValue) {
-        mFakeComposerClient->setMockHal(nullptr);
-        auto ret =
-                mFakeComposerClient->getDisplayAttribute_2_4(display, config, attribute, outValue);
-        mFakeComposerClient->setMockHal(mMockComposer.get());
-        return ret;
-    }
-
-    void setExpectationsForConfigs(Display display, std::vector<TestConfig> testConfigs,
-                                   Config activeConfig, V2_4::VsyncPeriodNanos defaultVsyncPeriod) {
-        std::vector<Config> configIds;
-        for (size_t i = 0; i < testConfigs.size(); i++) {
-            configIds.push_back(testConfigs[i].id);
-
-            EXPECT_CALL(*mMockComposer,
-                        getDisplayAttribute_2_4(display, testConfigs[i].id, Attribute::WIDTH, _))
-                    .WillRepeatedly(DoAll(SetArgPointee<3>(testConfigs[i].w), Return(Error::NONE)));
-            EXPECT_CALL(*mMockComposer,
-                        getDisplayAttribute_2_4(display, testConfigs[i].id, Attribute::HEIGHT, _))
-                    .WillRepeatedly(DoAll(SetArgPointee<3>(testConfigs[i].h), Return(Error::NONE)));
-            EXPECT_CALL(*mMockComposer,
-                        getDisplayAttribute_2_4(display, testConfigs[i].id, Attribute::VSYNC_PERIOD,
-                                                _))
-                    .WillRepeatedly(DoAll(SetArgPointee<3>(testConfigs[i].vsyncPeriod),
-                                          Return(Error::NONE)));
-            EXPECT_CALL(*mMockComposer,
-                        getDisplayAttribute_2_4(display, testConfigs[i].id, Attribute::CONFIG_GROUP,
-                                                _))
-                    .WillRepeatedly(
-                            DoAll(SetArgPointee<3>(testConfigs[i].group), Return(Error::NONE)));
-            EXPECT_CALL(*mMockComposer,
-                        getDisplayAttribute_2_4(display, testConfigs[i].id, Attribute::DPI_X, _))
-                    .WillRepeatedly(Return(Error::UNSUPPORTED));
-            EXPECT_CALL(*mMockComposer,
-                        getDisplayAttribute_2_4(display, testConfigs[i].id, Attribute::DPI_Y, _))
-                    .WillRepeatedly(Return(Error::UNSUPPORTED));
-        }
-
-        EXPECT_CALL(*mMockComposer, getDisplayConfigs(display, _))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(hidl_vec<Config>(configIds)),
-                                      Return(V2_1::Error::NONE)));
-
-        EXPECT_CALL(*mMockComposer, getActiveConfig(display, _))
-                .WillRepeatedly(DoAll(SetArgPointee<1>(activeConfig), Return(V2_1::Error::NONE)));
-
-        EXPECT_CALL(*mMockComposer, getDisplayVsyncPeriod(display, _))
-                .WillRepeatedly(
-                        DoAll(SetArgPointee<1>(defaultVsyncPeriod), Return(V2_4::Error::NONE)));
-    }
-
-    void SetUp() override {
-        mMockComposer = std::make_unique<MockComposerHal>();
-        mFakeComposerClient = new FakeComposerClient();
-        mFakeComposerClient->setMockHal(mMockComposer.get());
-
-        auto client = sp<V2_4::hal::ComposerClient>::make(mFakeComposerClient);
-        mFakeService = sp<FakeComposerService>::make(client);
-        ASSERT_EQ(android::OK, mFakeService->registerAsService("mock"));
-
-        android::hardware::ProcessState::self()->startThreadPool();
-        android::ProcessState::self()->startThreadPool();
-
-        setExpectationsForConfigs(PRIMARY_DISPLAY,
-                                  {{
-                                          .id = 1,
-                                          .w = 1920,
-                                          .h = 1024,
-                                          .vsyncPeriod = 16'666'666,
-                                          .group = 0,
-                                  }},
-                                  1, 16'666'666);
-
-        startSurfaceFlinger();
-
-        // Fake composer wants to enable VSync injection
-        mFakeComposerClient->onSurfaceFlingerStart();
-
-        mComposerClient = sp<SurfaceComposerClient>::make();
-        ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
-
-        mReceiver.reset(
-                new DisplayEventReceiver(gui::ISurfaceComposer::VsyncSource::eVsyncSourceApp,
-                                         gui::ISurfaceComposer::EventRegistration::modeChanged));
-        mLooper = sp<Looper>::make(false);
-        mLooper->addFd(mReceiver->getFd(), 0, ALOOPER_EVENT_INPUT, processDisplayEvents, this);
-    }
-
-    void TearDown() override {
-        mLooper = nullptr;
-        mReceiver = nullptr;
-
-        mComposerClient->dispose();
-        mComposerClient = nullptr;
-
-        // Fake composer needs to release SurfaceComposerClient before the stop.
-        mFakeComposerClient->onSurfaceFlingerStop();
-        stopSurfaceFlinger();
-
-        mFakeComposerClient->setMockHal(nullptr);
-
-        mFakeService = nullptr;
-        // TODO: Currently deleted in FakeComposerClient::removeClient(). Devise better lifetime
-        // management.
-        mMockComposer = nullptr;
-    }
-
-    void waitForDisplayTransaction(Display display) {
-        // Both a refresh and a vsync event are needed to apply pending display
-        // transactions.
-        mFakeComposerClient->refreshDisplay(display);
-        mFakeComposerClient->runVSyncAndWait();
-
-        // Extra vsync and wait to avoid a 10% flake due to a race.
-        mFakeComposerClient->runVSyncAndWait();
-    }
-
-    bool waitForHotplugEvent(Display displayId, bool connected) {
-        return waitForHotplugEvent(physicalIdFromHwcDisplayId(displayId), connected);
-    }
-
-    bool waitForHotplugEvent(PhysicalDisplayId displayId, bool connected) {
-        int waitCount = 20;
-        while (waitCount--) {
-            while (!mReceivedDisplayEvents.empty()) {
-                auto event = mReceivedDisplayEvents.front();
-                mReceivedDisplayEvents.pop_front();
-
-                ALOGV_IF(event.header.type == DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG,
-                         "event hotplug: displayId %s, connected %d",
-                         to_string(event.header.displayId).c_str(), event.hotplug.connected);
-
-                if (event.header.type == DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG &&
-                    event.header.displayId == displayId && event.hotplug.connected == connected) {
-                    return true;
-                }
-            }
-
-            mLooper->pollOnce(1);
-        }
-        return false;
-    }
-
-    bool waitForModeChangedEvent(Display display, int32_t modeId) {
-        PhysicalDisplayId displayId = physicalIdFromHwcDisplayId(display);
-        int waitCount = 20;
-        while (waitCount--) {
-            while (!mReceivedDisplayEvents.empty()) {
-                auto event = mReceivedDisplayEvents.front();
-                mReceivedDisplayEvents.pop_front();
-
-                ALOGV_IF(event.header.type == DisplayEventReceiver::DISPLAY_EVENT_MODE_CHANGE,
-                         "event mode: displayId %s, modeId %d",
-                         to_string(event.header.displayId).c_str(), event.modeChange.modeId);
-
-                if (event.header.type == DisplayEventReceiver::DISPLAY_EVENT_MODE_CHANGE &&
-                    event.header.displayId == displayId && event.modeChange.modeId == modeId) {
-                    return true;
-                }
-            }
-
-            mLooper->pollOnce(1);
-        }
-        return false;
-    }
-
-    void Test_HotplugOneConfig() {
-        ALOGD("DisplayTest::Test_Hotplug_oneConfig");
-
-        setExpectationsForConfigs(EXTERNAL_DISPLAY,
-                                  {{.id = 1,
-                                    .w = 200,
-                                    .h = 400,
-                                    .vsyncPeriod = 16'666'666,
-                                    .group = 0}},
-                                  1, 16'666'666);
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, true));
-
-        {
-            const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kExternalDisplayId);
-            EXPECT_FALSE(display == nullptr);
-
-            ui::DisplayMode mode;
-            EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-            const ui::Size& resolution = mode.resolution;
-            EXPECT_EQ(ui::Size(200, 400), resolution);
-            EXPECT_EQ(1e9f / 16'666'666, mode.refreshRate);
-
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::DISCONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        mFakeComposerClient->clearFrames();
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, false));
-
-        {
-            const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kExternalDisplayId);
-            EXPECT_TRUE(display == nullptr);
-
-            ui::DisplayMode mode;
-            EXPECT_NE(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        }
-    }
-
-    void Test_HotplugTwoSeparateConfigs() {
-        ALOGD("DisplayTest::Test_HotplugTwoSeparateConfigs");
-
-        setExpectationsForConfigs(EXTERNAL_DISPLAY,
-                                  {{.id = 1,
-                                    .w = 200,
-                                    .h = 400,
-                                    .vsyncPeriod = 16'666'666,
-                                    .group = 0},
-                                   {.id = 2,
-                                    .w = 800,
-                                    .h = 1600,
-                                    .vsyncPeriod = 11'111'111,
-                                    .group = 1}},
-                                  1, 16'666'666);
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, true));
-
-        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kExternalDisplayId);
-        EXPECT_FALSE(display == nullptr);
-
-        ui::DisplayMode mode;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(200, 400), mode.resolution);
-        EXPECT_EQ(1e9f / 16'666'666, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        ui::DynamicDisplayInfo info;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getDynamicDisplayInfo(display, &info));
-        const auto& modes = info.supportedDisplayModes;
-        EXPECT_EQ(modes.size(), 2);
-
-        // change active mode
-
-        if (mIs2_4Client) {
-            EXPECT_CALL(*mMockComposer, setActiveConfigWithConstraints(EXTERNAL_DISPLAY, 2, _, _))
-                    .WillOnce(Return(V2_4::Error::NONE));
-        } else {
-            EXPECT_CALL(*mMockComposer, setActiveConfig(EXTERNAL_DISPLAY, 2))
-                    .WillOnce(Return(V2_1::Error::NONE));
-        }
-
-        for (int i = 0; i < modes.size(); i++) {
-            const auto& mode = modes[i];
-            if (mode.resolution.getWidth() == 800) {
-                EXPECT_EQ(NO_ERROR,
-                          SurfaceComposerClient::setDesiredDisplayModeSpecs(display, i, false,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate));
-                waitForDisplayTransaction(EXTERNAL_DISPLAY);
-                EXPECT_TRUE(waitForModeChangedEvent(EXTERNAL_DISPLAY, i));
-                break;
-            }
-        }
-
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-        EXPECT_EQ(1e9f / 11'111'111, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::DISCONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        mFakeComposerClient->clearFrames();
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, false));
-    }
-
-    void Test_HotplugTwoConfigsSameGroup() {
-        ALOGD("DisplayTest::Test_HotplugTwoConfigsSameGroup");
-
-        setExpectationsForConfigs(EXTERNAL_DISPLAY,
-                                  {{.id = 2,
-                                    .w = 800,
-                                    .h = 1600,
-                                    .vsyncPeriod = 16'666'666,
-                                    .group = 31},
-                                   {.id = 3,
-                                    .w = 800,
-                                    .h = 1600,
-                                    .vsyncPeriod = 11'111'111,
-                                    .group = 31}},
-                                  2, 16'666'666);
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, true));
-
-        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kExternalDisplayId);
-        EXPECT_FALSE(display == nullptr);
-
-        ui::DisplayMode mode;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-        EXPECT_EQ(1e9f / 16'666'666, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        ui::DynamicDisplayInfo info;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getDynamicDisplayInfo(display, &info));
-        const auto& modes = info.supportedDisplayModes;
-        EXPECT_EQ(modes.size(), 2);
-
-        // change active mode
-        if (mIs2_4Client) {
-            EXPECT_CALL(*mMockComposer, setActiveConfigWithConstraints(EXTERNAL_DISPLAY, 3, _, _))
-                    .WillOnce(Return(V2_4::Error::NONE));
-        } else {
-            EXPECT_CALL(*mMockComposer, setActiveConfig(EXTERNAL_DISPLAY, 3))
-                    .WillOnce(Return(V2_1::Error::NONE));
-        }
-
-        for (int i = 0; i < modes.size(); i++) {
-            const auto& mode = modes[i];
-            if (mode.refreshRate == 1e9f / 11'111'111) {
-                EXPECT_EQ(NO_ERROR,
-                          SurfaceComposerClient::setDesiredDisplayModeSpecs(display, i, false,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate));
-                waitForDisplayTransaction(EXTERNAL_DISPLAY);
-                EXPECT_TRUE(waitForModeChangedEvent(EXTERNAL_DISPLAY, i));
-                break;
-            }
-        }
-
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-        EXPECT_EQ(1e9f / 11'111'111, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::DISCONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        mFakeComposerClient->clearFrames();
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, false));
-    }
-
-    void Test_HotplugThreeConfigsMixedGroups() {
-        ALOGD("DisplayTest::Test_HotplugThreeConfigsMixedGroups");
-
-        setExpectationsForConfigs(EXTERNAL_DISPLAY,
-                                  {{.id = 2,
-                                    .w = 800,
-                                    .h = 1600,
-                                    .vsyncPeriod = 16'666'666,
-                                    .group = 0},
-                                   {.id = 3,
-                                    .w = 800,
-                                    .h = 1600,
-                                    .vsyncPeriod = 11'111'111,
-                                    .group = 0},
-                                   {.id = 4,
-                                    .w = 1600,
-                                    .h = 3200,
-                                    .vsyncPeriod = 8'333'333,
-                                    .group = 1},
-                                   {.id = 5,
-                                    .w = 1600,
-                                    .h = 3200,
-                                    .vsyncPeriod = 11'111'111,
-                                    .group = 1}},
-                                  2, 16'666'666);
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, true));
-
-        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kExternalDisplayId);
-        EXPECT_FALSE(display == nullptr);
-
-        ui::DisplayMode mode;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-        EXPECT_EQ(1e9f / 16'666'666, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        ui::DynamicDisplayInfo info;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getDynamicDisplayInfo(display, &info));
-        const auto& modes = info.supportedDisplayModes;
-        EXPECT_EQ(modes.size(), 4);
-
-        // change active mode to 800x1600@90Hz
-        if (mIs2_4Client) {
-            EXPECT_CALL(*mMockComposer, setActiveConfigWithConstraints(EXTERNAL_DISPLAY, 3, _, _))
-                    .WillOnce(Return(V2_4::Error::NONE));
-        } else {
-            EXPECT_CALL(*mMockComposer, setActiveConfig(EXTERNAL_DISPLAY, 3))
-                    .WillOnce(Return(V2_1::Error::NONE));
-        }
-
-        for (size_t i = 0; i < modes.size(); i++) {
-            const auto& mode = modes[i];
-            if (mode.resolution.getWidth() == 800 && mode.refreshRate == 1e9f / 11'111'111) {
-                EXPECT_EQ(NO_ERROR,
-                          SurfaceComposerClient::setDesiredDisplayModeSpecs(display, i, false,
-                                                                            modes[i].refreshRate,
-                                                                            modes[i].refreshRate,
-                                                                            modes[i].refreshRate,
-                                                                            modes[i].refreshRate));
-                waitForDisplayTransaction(EXTERNAL_DISPLAY);
-                EXPECT_TRUE(waitForModeChangedEvent(EXTERNAL_DISPLAY, i));
-                break;
-            }
-        }
-
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-        EXPECT_EQ(1e9f / 11'111'111, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        // change active mode to 1600x3200@120Hz
-        if (mIs2_4Client) {
-            EXPECT_CALL(*mMockComposer, setActiveConfigWithConstraints(EXTERNAL_DISPLAY, 4, _, _))
-                    .WillOnce(Return(V2_4::Error::NONE));
-        } else {
-            EXPECT_CALL(*mMockComposer, setActiveConfig(EXTERNAL_DISPLAY, 4))
-                    .WillOnce(Return(V2_1::Error::NONE));
-        }
-
-        for (int i = 0; i < modes.size(); i++) {
-            const auto& mode = modes[i];
-            if (mode.refreshRate == 1e9f / 8'333'333) {
-                EXPECT_EQ(NO_ERROR,
-                          SurfaceComposerClient::setDesiredDisplayModeSpecs(display, i, false,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate));
-                waitForDisplayTransaction(EXTERNAL_DISPLAY);
-                EXPECT_TRUE(waitForModeChangedEvent(EXTERNAL_DISPLAY, i));
-                break;
-            }
-        }
-
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(1600, 3200), mode.resolution);
-        EXPECT_EQ(1e9f / 8'333'333, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        // change active mode to 1600x3200@90Hz
-        if (mIs2_4Client) {
-            EXPECT_CALL(*mMockComposer, setActiveConfigWithConstraints(EXTERNAL_DISPLAY, 5, _, _))
-                    .WillOnce(Return(V2_4::Error::NONE));
-        } else {
-            EXPECT_CALL(*mMockComposer, setActiveConfig(EXTERNAL_DISPLAY, 5))
-                    .WillOnce(Return(V2_1::Error::NONE));
-        }
-
-        for (int i = 0; i < modes.size(); i++) {
-            const auto& mode = modes[i];
-            if (mode.resolution.getWidth() == 1600 && mode.refreshRate == 1e9f / 11'111'111) {
-                EXPECT_EQ(NO_ERROR,
-                          SurfaceComposerClient::setDesiredDisplayModeSpecs(display, i, false,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate,
-                                                                            mode.refreshRate));
-                waitForDisplayTransaction(EXTERNAL_DISPLAY);
-                EXPECT_TRUE(waitForModeChangedEvent(EXTERNAL_DISPLAY, i));
-                break;
-            }
-        }
-
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-        EXPECT_EQ(ui::Size(1600, 3200), mode.resolution);
-        EXPECT_EQ(1e9f / 11'111'111, mode.refreshRate);
-
-        mFakeComposerClient->clearFrames();
-        {
-            const ui::Size& resolution = mode.resolution;
-            auto surfaceControl =
-                    mComposerClient->createSurface(String8("Display Test Surface Foo"),
-                                                   resolution.getWidth(), resolution.getHeight(),
-                                                   PIXEL_FORMAT_RGBA_8888, 0);
-            EXPECT_TRUE(surfaceControl != nullptr);
-            EXPECT_TRUE(surfaceControl->isValid());
-            fillSurfaceRGBA8(surfaceControl, BLUE);
-
-            {
-                TransactionScope ts(*mFakeComposerClient);
-                ts.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-                ts.setLayer(surfaceControl, INT32_MAX - 2).show(surfaceControl);
-            }
-        }
-
-        mFakeComposerClient->hotplugDisplay(EXTERNAL_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::DISCONNECTED);
-        waitForDisplayTransaction(EXTERNAL_DISPLAY);
-        mFakeComposerClient->clearFrames();
-        EXPECT_TRUE(waitForHotplugEvent(EXTERNAL_DISPLAY, false));
-    }
-
-    void Test_HotplugPrimaryDisplay() {
-        ALOGD("DisplayTest::HotplugPrimaryDisplay");
-
-        mFakeComposerClient->hotplugDisplay(PRIMARY_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::DISCONNECTED);
-
-        waitForDisplayTransaction(PRIMARY_DISPLAY);
-
-        EXPECT_TRUE(waitForHotplugEvent(PRIMARY_DISPLAY, false));
-        {
-            const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kPrimaryDisplayId);
-            EXPECT_TRUE(display == nullptr);
-
-            ui::DisplayMode mode;
-            auto result = SurfaceComposerClient::getActiveDisplayMode(display, &mode);
-            EXPECT_NE(NO_ERROR, result);
-        }
-
-        mFakeComposerClient->clearFrames();
-
-        setExpectationsForConfigs(PRIMARY_DISPLAY,
-                                  {{.id = 1,
-                                    .w = 400,
-                                    .h = 200,
-                                    .vsyncPeriod = 16'666'666,
-                                    .group = 0}},
-                                  1, 16'666'666);
-
-        mFakeComposerClient->hotplugDisplay(PRIMARY_DISPLAY,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-
-        waitForDisplayTransaction(PRIMARY_DISPLAY);
-
-        EXPECT_TRUE(waitForHotplugEvent(PRIMARY_DISPLAY, true));
-
-        {
-            const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kPrimaryDisplayId);
-            EXPECT_FALSE(display == nullptr);
-
-            ui::DisplayMode mode;
-            auto result = SurfaceComposerClient::getActiveDisplayMode(display, &mode);
-            EXPECT_EQ(NO_ERROR, result);
-            ASSERT_EQ(ui::Size(400, 200), mode.resolution);
-            EXPECT_EQ(1e9f / 16'666'666, mode.refreshRate);
-        }
-    }
-
-    void Test_SubsequentHotplugConnectUpdatesDisplay(Display hwcDisplayId) {
-        ALOGD("DisplayTest::Test_SubsequentHotplugConnectUpdatesDisplay");
-
-        // Send a hotplug connected event to set up the initial display modes.
-        // The primary display is already connected so this will update it.
-        // If we're running the test of an external display this will create it.
-        setExpectationsForConfigs(hwcDisplayId,
-                                  {{.id = 1,
-                                    .w = 800,
-                                    .h = 1600,
-                                    .vsyncPeriod = 11'111'111,
-                                    .group = 1}},
-                                  /* activeConfig */ 1, 11'111'111);
-
-        mFakeComposerClient->hotplugDisplay(hwcDisplayId,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-        waitForDisplayTransaction(hwcDisplayId);
-        EXPECT_TRUE(waitForHotplugEvent(hwcDisplayId, true));
-
-        const auto displayId = physicalIdFromHwcDisplayId(hwcDisplayId);
-        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(displayId);
-        EXPECT_FALSE(display == nullptr);
-
-        // Verify that the active mode and the supported moded are updated
-        {
-            ui::DisplayMode mode;
-            EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-            EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-            EXPECT_EQ(1e9f / 11'111'111, mode.refreshRate);
-
-            ui::DynamicDisplayInfo info;
-            EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getDynamicDisplayInfo(display, &info));
-            const auto& modes = info.supportedDisplayModes;
-            EXPECT_EQ(modes.size(), 1);
-        }
-
-        // Send another hotplug connected event
-        setExpectationsForConfigs(hwcDisplayId,
-                                  {
-                                          {.id = 1,
-                                           .w = 800,
-                                           .h = 1600,
-                                           .vsyncPeriod = 16'666'666,
-                                           .group = 1},
-                                          {.id = 2,
-                                           .w = 800,
-                                           .h = 1600,
-                                           .vsyncPeriod = 11'111'111,
-                                           .group = 1},
-                                          {.id = 3,
-                                           .w = 800,
-                                           .h = 1600,
-                                           .vsyncPeriod = 8'333'333,
-                                           .group = 1},
-                                  },
-                                  /* activeConfig */ 1, 16'666'666);
-
-        mFakeComposerClient->hotplugDisplay(hwcDisplayId,
-                                            V2_1::IComposerCallback::Connection::CONNECTED);
-        waitForDisplayTransaction(hwcDisplayId);
-        EXPECT_TRUE(waitForHotplugEvent(hwcDisplayId, true));
-
-        // Verify that the active mode and the supported moded are updated
-        {
-            ui::DisplayMode mode;
-            EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-            EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-            EXPECT_EQ(1e9f / 16'666'666, mode.refreshRate);
-        }
-
-        ui::DynamicDisplayInfo info;
-        EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getDynamicDisplayInfo(display, &info));
-        const auto& modes = info.supportedDisplayModes;
-        EXPECT_EQ(modes.size(), 3);
-
-        EXPECT_EQ(ui::Size(800, 1600), modes[0].resolution);
-        EXPECT_EQ(1e9f / 16'666'666, modes[0].refreshRate);
-
-        EXPECT_EQ(ui::Size(800, 1600), modes[1].resolution);
-        EXPECT_EQ(1e9f / 11'111'111, modes[1].refreshRate);
-
-        EXPECT_EQ(ui::Size(800, 1600), modes[2].resolution);
-        EXPECT_EQ(1e9f / 8'333'333, modes[2].refreshRate);
-
-        // Verify that we are able to switch to any of the modes
-        for (int i = modes.size() - 1; i >= 0; i--) {
-            const auto hwcId = i + 1;
-            // Set up HWC expectations for the mode change
-            if (mIs2_4Client) {
-                EXPECT_CALL(*mMockComposer,
-                            setActiveConfigWithConstraints(hwcDisplayId, hwcId, _, _))
-                        .WillOnce(Return(V2_4::Error::NONE));
-            } else {
-                EXPECT_CALL(*mMockComposer, setActiveConfig(hwcDisplayId, hwcId))
-                        .WillOnce(Return(V2_1::Error::NONE));
-            }
-
-            EXPECT_EQ(NO_ERROR,
-                      SurfaceComposerClient::setDesiredDisplayModeSpecs(display, i, false,
-                                                                        modes[i].refreshRate,
-                                                                        modes[i].refreshRate,
-                                                                        modes[i].refreshRate,
-                                                                        modes[i].refreshRate));
-            // We need to refresh twice - once to apply the pending mode change request,
-            // and once to process the change.
-            waitForDisplayTransaction(hwcDisplayId);
-            waitForDisplayTransaction(hwcDisplayId);
-            EXPECT_TRUE(waitForModeChangedEvent(hwcDisplayId, i))
-                    << "Failure while switching to mode " << i;
-
-            ui::DisplayMode mode;
-            EXPECT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-            EXPECT_EQ(ui::Size(800, 1600), mode.resolution);
-            EXPECT_EQ(modes[i].refreshRate, mode.refreshRate);
-        }
-    }
-
-    sp<V2_1::IComposer> mFakeService;
-    sp<SurfaceComposerClient> mComposerClient;
-
-    std::unique_ptr<MockComposerHal> mMockComposer;
-    FakeComposerClient* mFakeComposerClient;
-
-    std::unique_ptr<DisplayEventReceiver> mReceiver;
-    sp<Looper> mLooper;
-    std::deque<DisplayEventReceiver::Event> mReceivedDisplayEvents;
-
-    static constexpr bool mIs2_4Client =
-            std::is_same<FakeComposerService, FakeComposerService_2_4>::value;
-};
-
-using DisplayTest_2_1 = DisplayTest<FakeComposerService_2_1>;
-
-// Tests that VSYNC injection can be safely toggled while invalidating.
-TEST_F(DisplayTest_2_1, VsyncInjection) {
-    const auto flinger = ComposerServiceAIDL::getComposerService();
-    bool enable = true;
-
-    for (int i = 0; i < 100; i++) {
-        flinger->enableVSyncInjections(enable);
-        enable = !enable;
-
-        constexpr uint32_t kForceInvalidate = 1004;
-        android::Parcel data, reply;
-        data.writeInterfaceToken(String16("android.ui.ISurfaceComposer"));
-        EXPECT_EQ(NO_ERROR,
-                  android::IInterface::asBinder(flinger)->transact(kForceInvalidate, data, &reply));
-
-        std::this_thread::sleep_for(5ms);
-    }
-}
-
-TEST_F(DisplayTest_2_1, HotplugOneConfig) {
-    Test_HotplugOneConfig();
-}
-
-TEST_F(DisplayTest_2_1, HotplugTwoSeparateConfigs) {
-    Test_HotplugTwoSeparateConfigs();
-}
-
-TEST_F(DisplayTest_2_1, HotplugTwoConfigsSameGroup) {
-    Test_HotplugTwoConfigsSameGroup();
-}
-
-TEST_F(DisplayTest_2_1, HotplugThreeConfigsMixedGroups) {
-    Test_HotplugThreeConfigsMixedGroups();
-}
-
-TEST_F(DisplayTest_2_1, HotplugPrimaryOneConfig) {
-    Test_HotplugPrimaryDisplay();
-}
-
-TEST_F(DisplayTest_2_1, SubsequentHotplugConnectUpdatesPrimaryDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(PRIMARY_DISPLAY);
-}
-
-TEST_F(DisplayTest_2_1, SubsequentHotplugConnectUpdatesExternalDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(EXTERNAL_DISPLAY);
-}
-
-using DisplayTest_2_2 = DisplayTest<FakeComposerService_2_2>;
-
-TEST_F(DisplayTest_2_2, HotplugOneConfig) {
-    Test_HotplugOneConfig();
-}
-
-TEST_F(DisplayTest_2_2, HotplugTwoSeparateConfigs) {
-    Test_HotplugTwoSeparateConfigs();
-}
-
-TEST_F(DisplayTest_2_2, HotplugTwoConfigsSameGroup) {
-    Test_HotplugTwoConfigsSameGroup();
-}
-
-TEST_F(DisplayTest_2_2, HotplugThreeConfigsMixedGroups) {
-    Test_HotplugThreeConfigsMixedGroups();
-}
-
-TEST_F(DisplayTest_2_2, HotplugPrimaryOneConfig) {
-    Test_HotplugPrimaryDisplay();
-}
-
-TEST_F(DisplayTest_2_2, SubsequentHotplugConnectUpdatesPrimaryDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(PRIMARY_DISPLAY);
-}
-
-TEST_F(DisplayTest_2_2, SubsequentHotplugConnectUpdatesExternalDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(EXTERNAL_DISPLAY);
-}
-
-using DisplayTest_2_3 = DisplayTest<FakeComposerService_2_3>;
-
-TEST_F(DisplayTest_2_3, HotplugOneConfig) {
-    Test_HotplugOneConfig();
-}
-
-TEST_F(DisplayTest_2_3, HotplugTwoSeparateConfigs) {
-    Test_HotplugTwoSeparateConfigs();
-}
-
-TEST_F(DisplayTest_2_3, HotplugTwoConfigsSameGroup) {
-    Test_HotplugTwoConfigsSameGroup();
-}
-
-TEST_F(DisplayTest_2_3, HotplugThreeConfigsMixedGroups) {
-    Test_HotplugThreeConfigsMixedGroups();
-}
-
-TEST_F(DisplayTest_2_3, HotplugPrimaryOneConfig) {
-    Test_HotplugPrimaryDisplay();
-}
-
-TEST_F(DisplayTest_2_3, SubsequentHotplugConnectUpdatesPrimaryDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(PRIMARY_DISPLAY);
-}
-
-TEST_F(DisplayTest_2_3, SubsequentHotplugConnectUpdatesExternalDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(EXTERNAL_DISPLAY);
-}
-
-using DisplayTest_2_4 = DisplayTest<FakeComposerService_2_4>;
-
-TEST_F(DisplayTest_2_4, HotplugOneConfig) {
-    Test_HotplugOneConfig();
-}
-
-TEST_F(DisplayTest_2_4, HotplugTwoSeparateConfigs) {
-    Test_HotplugTwoSeparateConfigs();
-}
-
-TEST_F(DisplayTest_2_4, HotplugTwoConfigsSameGroup) {
-    Test_HotplugTwoConfigsSameGroup();
-}
-
-TEST_F(DisplayTest_2_4, HotplugThreeConfigsMixedGroups) {
-    Test_HotplugThreeConfigsMixedGroups();
-}
-
-TEST_F(DisplayTest_2_4, HotplugPrimaryOneConfig) {
-    Test_HotplugPrimaryDisplay();
-}
-
-TEST_F(DisplayTest_2_4, SubsequentHotplugConnectUpdatesPrimaryDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(PRIMARY_DISPLAY);
-}
-
-TEST_F(DisplayTest_2_4, SubsequentHotplugConnectUpdatesExternalDisplay) {
-    Test_SubsequentHotplugConnectUpdatesDisplay(EXTERNAL_DISPLAY);
-}
-
-////////////////////////////////////////////////
-
-template <typename FakeComposerService>
-class TransactionTest : public ::testing::Test {
-protected:
-    // Layer array indexing constants.
-    constexpr static int BG_LAYER = 0;
-    constexpr static int FG_LAYER = 1;
-
-    static void SetUpTestCase() {
-        // TODO: See TODO comment at DisplayTest::SetUp for background on
-        // the lifetime of the FakeComposerClient.
-        sFakeComposer = new FakeComposerClient;
-        auto client = sp<V2_4::hal::ComposerClient>::make(sFakeComposer);
-        sp<V2_1::IComposer> fakeService = sp<FakeComposerService>::make(client);
-        (void)fakeService->registerAsService("mock");
-
-        android::hardware::ProcessState::self()->startThreadPool();
-        android::ProcessState::self()->startThreadPool();
-
-        startSurfaceFlinger();
-
-        // Fake composer wants to enable VSync injection
-        sFakeComposer->onSurfaceFlingerStart();
-    }
-
-    static void TearDownTestCase() {
-        // Fake composer needs to release SurfaceComposerClient before the stop.
-        sFakeComposer->onSurfaceFlingerStop();
-        stopSurfaceFlinger();
-        // TODO: This is deleted when the ComposerClient calls
-        // removeClient. Devise better lifetime control.
-        sFakeComposer = nullptr;
-    }
-
-    void SetUp() override {
-        ALOGI("TransactionTest::SetUp");
-        mComposerClient = sp<SurfaceComposerClient>::make();
-        ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
-
-        ALOGI("TransactionTest::SetUp - display");
-        const auto display = SurfaceComposerClient::getPhysicalDisplayToken(kPrimaryDisplayId);
-        ASSERT_FALSE(display == nullptr);
-
-        ui::DisplayMode mode;
-        ASSERT_EQ(NO_ERROR, SurfaceComposerClient::getActiveDisplayMode(display, &mode));
-
-        const ui::Size& resolution = mode.resolution;
-        mDisplayWidth = resolution.getWidth();
-        mDisplayHeight = resolution.getHeight();
-
-        // Background surface
-        mBGSurfaceControl =
-                mComposerClient->createSurface(String8("BG Test Surface"), mDisplayWidth,
-                                               mDisplayHeight, PIXEL_FORMAT_RGBA_8888, 0);
-        ASSERT_TRUE(mBGSurfaceControl != nullptr);
-        ASSERT_TRUE(mBGSurfaceControl->isValid());
-        fillSurfaceRGBA8(mBGSurfaceControl, BLUE);
-
-        // Foreground surface
-        mFGSurfaceControl = mComposerClient->createSurface(String8("FG Test Surface"), 64, 64,
-                                                           PIXEL_FORMAT_RGBA_8888, 0);
-        ASSERT_TRUE(mFGSurfaceControl != nullptr);
-        ASSERT_TRUE(mFGSurfaceControl->isValid());
-
-        fillSurfaceRGBA8(mFGSurfaceControl, RED);
-
-        Transaction t;
-        t.setDisplayLayerStack(display, ui::DEFAULT_LAYER_STACK);
-
-        t.setLayer(mBGSurfaceControl, INT32_MAX - 2);
-        t.show(mBGSurfaceControl);
-
-        t.setLayer(mFGSurfaceControl, INT32_MAX - 1);
-        t.setPosition(mFGSurfaceControl, 64, 64);
-        t.show(mFGSurfaceControl);
-
-        // Synchronous transaction will stop this thread, so we set up a
-        // delayed, off-thread vsync request before closing the
-        // transaction. In the test code this is usually done with
-        // TransactionScope. Leaving here in the 'vanilla' form for
-        // reference.
-        ASSERT_EQ(0, sFakeComposer->getFrameCount());
-        sFakeComposer->runVSyncAfter(1ms);
-        t.apply();
-        sFakeComposer->waitUntilFrame(1);
-
-        // Reference data. This is what the HWC should see.
-        static_assert(BG_LAYER == 0 && FG_LAYER == 1, "Unexpected enum values for array indexing");
-        mBaseFrame.push_back(makeSimpleRect(0u, 0u, mDisplayWidth, mDisplayHeight));
-        mBaseFrame[BG_LAYER].mSwapCount = 1;
-        mBaseFrame.push_back(makeSimpleRect(64, 64, 64 + 64, 64 + 64));
-        mBaseFrame[FG_LAYER].mSwapCount = 1;
-
-        auto frame = sFakeComposer->getFrameRects(0);
-        ASSERT_TRUE(framesAreSame(mBaseFrame, frame));
-    }
-
-    void TearDown() override {
-        ALOGD("TransactionTest::TearDown");
-
-        mComposerClient->dispose();
-        mBGSurfaceControl = 0;
-        mFGSurfaceControl = 0;
-        mComposerClient = 0;
-
-        sFakeComposer->runVSyncAndWait();
-        mBaseFrame.clear();
-        sFakeComposer->clearFrames();
-        ASSERT_EQ(0, sFakeComposer->getFrameCount());
-
-        sp<gui::ISurfaceComposer> sf(ComposerServiceAIDL::getComposerService());
-        std::vector<gui::LayerDebugInfo> layers;
-        binder::Status status = sf->getLayerDebugInfo(&layers);
-        status_t result = gui::aidl_utils::statusTFromBinderStatus(status);
-        if (result != NO_ERROR) {
-            ALOGE("Failed to get layers %s %d", strerror(-result), result);
-        } else {
-            // If this fails, the test being torn down leaked layers.
-            EXPECT_EQ(0u, layers.size());
-            if (layers.size() > 0) {
-                for (auto layer = layers.begin(); layer != layers.end(); ++layer) {
-                    std::cout << to_string(*layer).c_str();
-                }
-                // To ensure the next test has clean slate, will run the class
-                // tear down and setup here.
-                TearDownTestCase();
-                SetUpTestCase();
-            }
-        }
-        ALOGD("TransactionTest::TearDown - complete");
-    }
-
-    void Test_LayerMove() {
-        ALOGD("TransactionTest::LayerMove");
-
-        // The scope opens and closes a global transaction and, at the
-        // same time, makes sure the SurfaceFlinger progresses one frame
-        // after the transaction closes. The results of the transaction
-        // should be available in the latest frame stored by the fake
-        // composer.
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setPosition(mFGSurfaceControl, 128, 128);
-            // NOTE: No changes yet, so vsync will do nothing, HWC does not get any calls.
-            // (How to verify that? Throw in vsync and wait a 2x frame time? Separate test?)
-            //
-            // sFakeComposer->runVSyncAndWait();
-        }
-
-        fillSurfaceRGBA8(mFGSurfaceControl, GREEN);
-        sFakeComposer->runVSyncAndWait();
-
-        ASSERT_EQ(3, sFakeComposer->getFrameCount()); // Make sure the waits didn't time out and
-                                                      // there's no extra frames.
-
-        // NOTE: Frame 0 is produced in the SetUp.
-        auto frame1Ref = mBaseFrame;
-        frame1Ref[FG_LAYER].mDisplayFrame =
-                hwc_rect_t{128, 128, 128 + 64, 128 + 64}; // Top-most layer moves.
-        EXPECT_TRUE(framesAreSame(frame1Ref, sFakeComposer->getFrameRects(1)));
-
-        auto frame2Ref = frame1Ref;
-        frame2Ref[FG_LAYER].mSwapCount++;
-        EXPECT_TRUE(framesAreSame(frame2Ref, sFakeComposer->getFrameRects(2)));
-    }
-
-    void Test_LayerCrop() {
-        // TODO: Add scaling to confirm that crop happens in buffer space?
-        {
-            TransactionScope ts(*sFakeComposer);
-            Rect cropRect(16, 16, 32, 32);
-            ts.setCrop(mFGSurfaceControl, cropRect);
-        }
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-
-        auto referenceFrame = mBaseFrame;
-        referenceFrame[FG_LAYER].mSourceCrop = hwc_frect_t{16.f, 16.f, 32.f, 32.f};
-        referenceFrame[FG_LAYER].mDisplayFrame = hwc_rect_t{64 + 16, 64 + 16, 64 + 32, 64 + 32};
-        EXPECT_TRUE(framesAreSame(referenceFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerSetLayer() {
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setLayer(mFGSurfaceControl, INT_MAX - 3);
-        }
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-
-        // The layers will switch order, but both are rendered because the background layer is
-        // transparent (RGBA8888).
-        std::vector<RenderState> referenceFrame(2);
-        referenceFrame[0] = mBaseFrame[FG_LAYER];
-        referenceFrame[1] = mBaseFrame[BG_LAYER];
-        EXPECT_TRUE(framesAreSame(referenceFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerSetLayerOpaque() {
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setLayer(mFGSurfaceControl, INT_MAX - 3);
-            ts.setFlags(mBGSurfaceControl, layer_state_t::eLayerOpaque,
-                        layer_state_t::eLayerOpaque);
-        }
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-
-        // The former foreground layer is now covered with opaque layer - it should have disappeared
-        std::vector<RenderState> referenceFrame(1);
-        referenceFrame[BG_LAYER] = mBaseFrame[BG_LAYER];
-        EXPECT_TRUE(framesAreSame(referenceFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_SetLayerStack() {
-        ALOGD("TransactionTest::SetLayerStack");
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setLayerStack(mFGSurfaceControl, ui::LayerStack{1});
-        }
-
-        // Foreground layer should have disappeared.
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-        std::vector<RenderState> refFrame(1);
-        refFrame[BG_LAYER] = mBaseFrame[BG_LAYER];
-        EXPECT_TRUE(framesAreSame(refFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerShowHide() {
-        ALOGD("TransactionTest::LayerShowHide");
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.hide(mFGSurfaceControl);
-        }
-
-        // Foreground layer should have disappeared.
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-        std::vector<RenderState> refFrame(1);
-        refFrame[BG_LAYER] = mBaseFrame[BG_LAYER];
-        EXPECT_TRUE(framesAreSame(refFrame, sFakeComposer->getLatestFrame()));
-
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.show(mFGSurfaceControl);
-        }
-
-        // Foreground layer should be back
-        ASSERT_EQ(3, sFakeComposer->getFrameCount());
-        EXPECT_TRUE(framesAreSame(mBaseFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerSetAlpha() {
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setAlpha(mFGSurfaceControl, 0.75f);
-        }
-
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-        auto referenceFrame = mBaseFrame;
-        referenceFrame[FG_LAYER].mPlaneAlpha = 0.75f;
-        EXPECT_TRUE(framesAreSame(referenceFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerSetFlags() {
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setFlags(mFGSurfaceControl, layer_state_t::eLayerHidden,
-                        layer_state_t::eLayerHidden);
-        }
-
-        // Foreground layer should have disappeared.
-        ASSERT_EQ(2, sFakeComposer->getFrameCount());
-        std::vector<RenderState> refFrame(1);
-        refFrame[BG_LAYER] = mBaseFrame[BG_LAYER];
-        EXPECT_TRUE(framesAreSame(refFrame, sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerSetMatrix() {
-        struct matrixTestData {
-            float matrix[4];
-            hwc_transform_t expectedTransform;
-            hwc_rect_t expectedDisplayFrame;
-        };
-
-        // The matrix operates on the display frame and is applied before
-        // the position is added. So, the foreground layer rect is (0, 0,
-        // 64, 64) is first transformed, potentially yielding negative
-        // coordinates and then the position (64, 64) is added yielding
-        // the final on-screen rectangles given.
-
-        const matrixTestData MATRIX_TESTS[7] = // clang-format off
-                {{{-1.f, 0.f, 0.f, 1.f},    HWC_TRANSFORM_FLIP_H,           {0, 64, 64, 128}},
-                 {{1.f, 0.f, 0.f, -1.f},    HWC_TRANSFORM_FLIP_V,           {64, 0, 128, 64}},
-                 {{0.f, 1.f, -1.f, 0.f},    HWC_TRANSFORM_ROT_90,           {0, 64, 64, 128}},
-                 {{-1.f, 0.f, 0.f, -1.f},   HWC_TRANSFORM_ROT_180,          {0, 0, 64, 64}},
-                 {{0.f, -1.f, 1.f, 0.f},    HWC_TRANSFORM_ROT_270,          {64, 0, 128, 64}},
-                 {{0.f, 1.f, 1.f, 0.f},     HWC_TRANSFORM_FLIP_H_ROT_90,    {64, 64, 128, 128}},
-                 {{0.f, 1.f, 1.f, 0.f},     HWC_TRANSFORM_FLIP_V_ROT_90,    {64, 64, 128, 128}}};
-        // clang-format on
-        constexpr int TEST_COUNT = sizeof(MATRIX_TESTS) / sizeof(matrixTestData);
-
-        for (int i = 0; i < TEST_COUNT; i++) {
-            // TODO: How to leverage the HWC2 stringifiers?
-            const matrixTestData& xform = MATRIX_TESTS[i];
-            SCOPED_TRACE(i);
-            {
-                TransactionScope ts(*sFakeComposer);
-                ts.setMatrix(mFGSurfaceControl, xform.matrix[0], xform.matrix[1], xform.matrix[2],
-                             xform.matrix[3]);
-            }
-
-            auto referenceFrame = mBaseFrame;
-            referenceFrame[FG_LAYER].mTransform = xform.expectedTransform;
-            referenceFrame[FG_LAYER].mDisplayFrame = xform.expectedDisplayFrame;
-
-            EXPECT_TRUE(framesAreSame(referenceFrame, sFakeComposer->getLatestFrame()));
-        }
-    }
-
-    void Test_SetRelativeLayer() {
-        constexpr int RELATIVE_LAYER = 2;
-        auto relativeSurfaceControl = mComposerClient->createSurface(String8("Test Surface"), 64,
-                                                                     64, PIXEL_FORMAT_RGBA_8888, 0);
-        fillSurfaceRGBA8(relativeSurfaceControl, LIGHT_RED);
-
-        // Now we stack the surface above the foreground surface and make sure it is visible.
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setPosition(relativeSurfaceControl, 64, 64);
-            ts.show(relativeSurfaceControl);
-            ts.setRelativeLayer(relativeSurfaceControl, mFGSurfaceControl, 1);
-        }
-        auto referenceFrame = mBaseFrame;
-        // NOTE: All three layers will be visible as the surfaces are
-        // transparent because of the RGBA format.
-        referenceFrame.push_back(makeSimpleRect(64, 64, 64 + 64, 64 + 64));
-        referenceFrame[RELATIVE_LAYER].mSwapCount = 1;
-        EXPECT_TRUE(framesAreSame(referenceFrame, sFakeComposer->getLatestFrame()));
-
-        // A call to setLayer will override a call to setRelativeLayer
-        {
-            TransactionScope ts(*sFakeComposer);
-            ts.setLayer(relativeSurfaceControl, 0);
-        }
-
-        // Previous top layer will now appear at the bottom.
-        auto referenceFrame2 = mBaseFrame;
-        referenceFrame2.insert(referenceFrame2.begin(), referenceFrame[RELATIVE_LAYER]);
-        EXPECT_EQ(3, sFakeComposer->getFrameCount());
-        EXPECT_TRUE(framesAreSame(referenceFrame2, sFakeComposer->getLatestFrame()));
-    }
-
-    sp<SurfaceComposerClient> mComposerClient;
-    sp<SurfaceControl> mBGSurfaceControl;
-    sp<SurfaceControl> mFGSurfaceControl;
-    std::vector<RenderState> mBaseFrame;
-    uint32_t mDisplayWidth;
-    uint32_t mDisplayHeight;
-
-    static inline FakeComposerClient* sFakeComposer;
-};
-
-using TransactionTest_2_1 = TransactionTest<FakeComposerService_2_1>;
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerMove) {
-    Test_LayerMove();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerCrop) {
-    Test_LayerCrop();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerSetLayer) {
-    Test_LayerSetLayer();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerSetLayerOpaque) {
-    Test_LayerSetLayerOpaque();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_SetLayerStack) {
-    Test_SetLayerStack();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerShowHide) {
-    Test_LayerShowHide();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerSetAlpha) {
-    Test_LayerSetAlpha();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerSetFlags) {
-    Test_LayerSetFlags();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_LayerSetMatrix) {
-    Test_LayerSetMatrix();
-}
-
-TEST_F(TransactionTest_2_1, DISABLED_SetRelativeLayer) {
-    Test_SetRelativeLayer();
-}
-
-template <typename FakeComposerService>
-class ChildLayerTest : public TransactionTest<FakeComposerService> {
-    using Base = TransactionTest<FakeComposerService>;
-
-protected:
-    constexpr static int CHILD_LAYER = 2;
-
-    void SetUp() override {
-        Base::SetUp();
-        mChild = Base::mComposerClient->createSurface(String8("Child surface"), 10, 10,
-                                                      PIXEL_FORMAT_RGBA_8888, 0,
-                                                      Base::mFGSurfaceControl->getHandle());
-        fillSurfaceRGBA8(mChild, LIGHT_GRAY);
-
-        Base::sFakeComposer->runVSyncAndWait();
-        Base::mBaseFrame.push_back(makeSimpleRect(64, 64, 64 + 10, 64 + 10));
-        Base::mBaseFrame[CHILD_LAYER].mSwapCount = 1;
-        ASSERT_EQ(2, Base::sFakeComposer->getFrameCount());
-        ASSERT_TRUE(framesAreSame(Base::mBaseFrame, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void TearDown() override {
-        mChild = 0;
-        Base::TearDown();
-    }
-
-    void Test_Positioning() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.show(mChild);
-            ts.setPosition(mChild, 10, 10);
-            // Move to the same position as in the original setup.
-            ts.setPosition(Base::mFGSurfaceControl, 64, 64);
-        }
-
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{64, 64, 64 + 64, 64 + 64};
-        referenceFrame[CHILD_LAYER].mDisplayFrame =
-                hwc_rect_t{64 + 10, 64 + 10, 64 + 10 + 10, 64 + 10 + 10};
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-        }
-
-        auto referenceFrame2 = Base::mBaseFrame;
-        referenceFrame2[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 0 + 64, 0 + 64};
-        referenceFrame2[CHILD_LAYER].mDisplayFrame =
-                hwc_rect_t{0 + 10, 0 + 10, 0 + 10 + 10, 0 + 10 + 10};
-        EXPECT_TRUE(framesAreSame(referenceFrame2, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_Cropping() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.show(mChild);
-            ts.setPosition(mChild, 0, 0);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-            ts.setCrop(Base::mFGSurfaceControl, Rect(0, 0, 5, 5));
-        }
-        // NOTE: The foreground surface would be occluded by the child
-        // now, but is included in the stack because the child is
-        // transparent.
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 0 + 5, 0 + 5};
-        referenceFrame[Base::FG_LAYER].mSourceCrop = hwc_frect_t{0.f, 0.f, 5.f, 5.f};
-        referenceFrame[CHILD_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 0 + 5, 0 + 5};
-        referenceFrame[CHILD_LAYER].mSourceCrop = hwc_frect_t{0.f, 0.f, 5.f, 5.f};
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_Constraints() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.show(mChild);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-            ts.setPosition(mChild, 63, 63);
-        }
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 64, 64};
-        referenceFrame[CHILD_LAYER].mDisplayFrame = hwc_rect_t{63, 63, 64, 64};
-        referenceFrame[CHILD_LAYER].mSourceCrop = hwc_frect_t{0.f, 0.f, 1.f, 1.f};
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_Scaling() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-        }
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 64, 64};
-        referenceFrame[CHILD_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 10, 10};
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setMatrix(Base::mFGSurfaceControl, 2.0, 0, 0, 2.0);
-        }
-
-        auto referenceFrame2 = Base::mBaseFrame;
-        referenceFrame2[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 128, 128};
-        referenceFrame2[CHILD_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 20, 20};
-        EXPECT_TRUE(framesAreSame(referenceFrame2, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerAlpha() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.show(mChild);
-            ts.setPosition(mChild, 0, 0);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-            ts.setAlpha(mChild, 0.5);
-        }
-
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 64, 64};
-        referenceFrame[CHILD_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 10, 10};
-        referenceFrame[CHILD_LAYER].mPlaneAlpha = 0.5f;
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setAlpha(Base::mFGSurfaceControl, 0.5);
-        }
-
-        auto referenceFrame2 = referenceFrame;
-        referenceFrame2[Base::FG_LAYER].mPlaneAlpha = 0.5f;
-        referenceFrame2[CHILD_LAYER].mPlaneAlpha = 0.25f;
-        EXPECT_TRUE(framesAreSame(referenceFrame2, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    sp<SurfaceControl> mChild;
-};
-
-using ChildLayerTest_2_1 = ChildLayerTest<FakeComposerService_2_1>;
-
-TEST_F(ChildLayerTest_2_1, DISABLED_Positioning) {
-    Test_Positioning();
-}
-
-TEST_F(ChildLayerTest_2_1, DISABLED_Cropping) {
-    Test_Cropping();
-}
-
-TEST_F(ChildLayerTest_2_1, DISABLED_Constraints) {
-    Test_Constraints();
-}
-
-TEST_F(ChildLayerTest_2_1, DISABLED_Scaling) {
-    Test_Scaling();
-}
-
-TEST_F(ChildLayerTest_2_1, DISABLED_LayerAlpha) {
-    Test_LayerAlpha();
-}
-
-template <typename FakeComposerService>
-class ChildColorLayerTest : public ChildLayerTest<FakeComposerService> {
-    using Base = ChildLayerTest<FakeComposerService>;
-
-protected:
-    void SetUp() override {
-        Base::SetUp();
-        Base::mChild =
-                Base::mComposerClient->createSurface(String8("Child surface"), 0, 0,
-                                                     PIXEL_FORMAT_RGBA_8888,
-                                                     ISurfaceComposerClient::eFXSurfaceEffect,
-                                                     Base::mFGSurfaceControl->getHandle());
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setColor(Base::mChild,
-                        {LIGHT_GRAY.r / 255.0f, LIGHT_GRAY.g / 255.0f, LIGHT_GRAY.b / 255.0f});
-            ts.setCrop(Base::mChild, Rect(0, 0, 10, 10));
-        }
-
-        Base::sFakeComposer->runVSyncAndWait();
-        Base::mBaseFrame.push_back(makeSimpleRect(64, 64, 64 + 10, 64 + 10));
-        Base::mBaseFrame[Base::CHILD_LAYER].mSourceCrop = hwc_frect_t{0.0f, 0.0f, 0.0f, 0.0f};
-        Base::mBaseFrame[Base::CHILD_LAYER].mSwapCount = 0;
-        ASSERT_EQ(2, Base::sFakeComposer->getFrameCount());
-        ASSERT_TRUE(framesAreSame(Base::mBaseFrame, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerAlpha() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.show(Base::mChild);
-            ts.setPosition(Base::mChild, 0, 0);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-            ts.setAlpha(Base::mChild, 0.5);
-        }
-
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 64, 64};
-        referenceFrame[Base::CHILD_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 10, 10};
-        referenceFrame[Base::CHILD_LAYER].mPlaneAlpha = 0.5f;
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setAlpha(Base::mFGSurfaceControl, 0.5);
-        }
-
-        auto referenceFrame2 = referenceFrame;
-        referenceFrame2[Base::FG_LAYER].mPlaneAlpha = 0.5f;
-        referenceFrame2[Base::CHILD_LAYER].mPlaneAlpha = 0.25f;
-        EXPECT_TRUE(framesAreSame(referenceFrame2, Base::sFakeComposer->getLatestFrame()));
-    }
-
-    void Test_LayerZeroAlpha() {
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.show(Base::mChild);
-            ts.setPosition(Base::mChild, 0, 0);
-            ts.setPosition(Base::mFGSurfaceControl, 0, 0);
-            ts.setAlpha(Base::mChild, 0.5);
-        }
-
-        auto referenceFrame = Base::mBaseFrame;
-        referenceFrame[Base::FG_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 64, 64};
-        referenceFrame[Base::CHILD_LAYER].mDisplayFrame = hwc_rect_t{0, 0, 10, 10};
-        referenceFrame[Base::CHILD_LAYER].mPlaneAlpha = 0.5f;
-        EXPECT_TRUE(framesAreSame(referenceFrame, Base::sFakeComposer->getLatestFrame()));
-
-        {
-            TransactionScope ts(*Base::sFakeComposer);
-            ts.setAlpha(Base::mFGSurfaceControl, 0.0f);
-        }
-
-        std::vector<RenderState> refFrame(1);
-        refFrame[Base::BG_LAYER] = Base::mBaseFrame[Base::BG_LAYER];
-
-        EXPECT_TRUE(framesAreSame(refFrame, Base::sFakeComposer->getLatestFrame()));
-    }
-};
-
-using ChildColorLayerTest_2_1 = ChildColorLayerTest<FakeComposerService_2_1>;
-
-TEST_F(ChildColorLayerTest_2_1, DISABLED_LayerAlpha) {
-    Test_LayerAlpha();
-}
-
-TEST_F(ChildColorLayerTest_2_1, DISABLED_LayerZeroAlpha) {
-    Test_LayerZeroAlpha();
-}
-} // namespace
-
-int main(int argc, char** argv) {
-    ::testing::InitGoogleTest(&argc, argv);
-
-    auto* fakeEnvironment = new sftest::FakeHwcEnvironment;
-    ::testing::AddGlobalTestEnvironment(fakeEnvironment);
-    ::testing::InitGoogleMock(&argc, argv);
-    return RUN_ALL_TESTS();
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion -Wextra"
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 4469df0..d2b5813 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -34,7 +34,6 @@
         "mock/MockFrameTimeline.cpp",
         "mock/MockFrameTracer.cpp",
         "mock/MockNativeWindowSurface.cpp",
-        "mock/MockSurfaceInterceptor.cpp",
         "mock/MockTimeStats.cpp",
         "mock/MockVsyncController.cpp",
         "mock/MockVSyncTracker.cpp",
@@ -168,7 +167,6 @@
         "libtimestats_atoms_proto",
         "libtimestats_proto",
         "libtonemap",
-        "libtrace_proto",
         "perfetto_trace_protos",
     ],
     shared_libs: [
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
index abe32c9..8b91c67 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
@@ -50,7 +50,6 @@
 
     injectMockScheduler();
     mFlinger.setupRenderEngine(std::unique_ptr<renderengine::RenderEngine>(mRenderEngine));
-    mFlinger.mutableInterceptor() = mSurfaceInterceptor;
 
     injectMockComposer(0);
 }
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h b/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
index 20e776f..9cceb5e 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTestHelpers.h
@@ -49,7 +49,6 @@
 #include "mock/DisplayHardware/MockPowerAdvisor.h"
 #include "mock/MockEventThread.h"
 #include "mock/MockNativeWindowSurface.h"
-#include "mock/MockSurfaceInterceptor.h"
 #include "mock/MockVsyncController.h"
 #include "mock/system/window/MockNativeWindow.h"
 
@@ -120,7 +119,6 @@
     // to keep a reference to them for use in setting up call expectations.
     renderengine::mock::RenderEngine* mRenderEngine = new renderengine::mock::RenderEngine();
     Hwc2::mock::Composer* mComposer = nullptr;
-    sp<mock::SurfaceInterceptor> mSurfaceInterceptor = sp<mock::SurfaceInterceptor>::make();
 
     mock::VsyncController* mVsyncController = new mock::VsyncController;
     mock::VSyncTracker* mVSyncTracker = new mock::VSyncTracker;
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index 978afc5..a5beaba 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -93,7 +93,6 @@
     void expectVSyncSetDurationCallReceived(std::chrono::nanoseconds expectedDuration,
                                             std::chrono::nanoseconds expectedReadyDuration);
     VSyncSource::Callback* expectVSyncSetCallbackCallReceived();
-    void expectInterceptCallReceived(nsecs_t expectedTimestamp);
     void expectVsyncEventReceivedByConnection(const char* name,
                                               ConnectionEventRecorder& connectionEventRecorder,
                                               nsecs_t expectedTimestamp, unsigned expectedCount);
@@ -114,7 +113,6 @@
     AsyncCallRecorder<void (*)(std::chrono::nanoseconds, std::chrono::nanoseconds)>
             mVSyncSetDurationCallRecorder;
     AsyncCallRecorder<void (*)()> mResyncCallRecorder;
-    AsyncCallRecorder<void (*)(nsecs_t)> mInterceptVSyncCallRecorder;
     AsyncCallRecorder<void (*)(nsecs_t, uid_t)> mThrottleVsyncCallRecorder;
     ConnectionEventRecorder mConnectionEventCallRecorder{0};
     ConnectionEventRecorder mThrottledConnectionEventCallRecorder{0};
@@ -181,7 +179,6 @@
 
     mTokenManager = std::make_unique<frametimeline::impl::TokenManager>();
     mThread = std::make_unique<impl::EventThread>(std::move(source), mTokenManager.get(),
-                                                  mInterceptVSyncCallRecorder.getInvocable(),
                                                   throttleVsync, getVsyncPeriod);
 
     // EventThread should register itself as VSyncSource callback.
@@ -219,12 +216,6 @@
     return callbackSet.has_value() ? std::get<0>(callbackSet.value()) : nullptr;
 }
 
-void EventThreadTest::expectInterceptCallReceived(nsecs_t expectedTimestamp) {
-    auto args = mInterceptVSyncCallRecorder.waitForCall();
-    ASSERT_TRUE(args.has_value());
-    EXPECT_EQ(expectedTimestamp, std::get<0>(args.value()));
-}
-
 void EventThreadTest::expectThrottleVsyncReceived(nsecs_t expectedTimestamp, uid_t uid) {
     auto args = mThrottleVsyncCallRecorder.waitForCall();
     ASSERT_TRUE(args.has_value());
@@ -348,7 +339,6 @@
     EXPECT_FALSE(mVSyncSetCallbackCallRecorder.waitForCall(0us).has_value());
     EXPECT_FALSE(mVSyncSetDurationCallRecorder.waitForCall(0us).has_value());
     EXPECT_FALSE(mResyncCallRecorder.waitForCall(0us).has_value());
-    EXPECT_FALSE(mInterceptVSyncCallRecorder.waitForCall(0us).has_value());
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForCall(0us).has_value());
 }
 
@@ -374,17 +364,15 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // Use the received callback to signal a first vsync event.
-    // The interceptor should receive the event, as well as the connection.
+    // The throttler should receive the event, as well as the connection.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     expectThrottleVsyncReceived(456, mConnectionUid);
     expectVsyncEventReceivedByConnection(123, 1u);
 
     // Use the received callback to signal a second vsync event.
-    // The interceptor should receive the event, but the connection should
+    // The throttler should receive the event, but the connection should
     // not as it was only interested in the first.
     mCallback->onVSyncEvent(456, {123, 0});
-    expectInterceptCallReceived(456);
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
@@ -400,10 +388,9 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // Use the received callback to signal a vsync event.
-    // The interceptor should receive the event, as well as the connection.
+    // The throttler should receive the event, as well as the connection.
     VSyncSource::VSyncData vsyncData = {456, 789};
     mCallback->onVSyncEvent(123, vsyncData);
-    expectInterceptCallReceived(123);
     expectVsyncEventFrameTimelinesCorrect(123, vsyncData);
 }
 
@@ -477,10 +464,9 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // Send a vsync event. EventThread should then make a call to the
-    // interceptor, and the second connection. The first connection should not
+    // the second connection. The first connection should not
     // get the event.
     mCallback->onVSyncEvent(123, {456, 0});
-    expectInterceptCallReceived(123);
     EXPECT_FALSE(firstConnectionEventRecorder.waitForUnexpectedCall().has_value());
     expectVsyncEventReceivedByConnection("secondConnection", secondConnectionEventRecorder, 123,
                                          1u);
@@ -493,21 +479,18 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // Send a vsync event. EventThread should then make a call to the
-    // interceptor, and the connection.
+    // throttler, and the connection.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     expectThrottleVsyncReceived(456, mConnectionUid);
     expectVsyncEventReceivedByConnection(123, 1u);
 
     // A second event should go to the same places.
     mCallback->onVSyncEvent(456, {123, 0});
-    expectInterceptCallReceived(456);
     expectThrottleVsyncReceived(123, mConnectionUid);
     expectVsyncEventReceivedByConnection(456, 2u);
 
     // A third event should go to the same places.
     mCallback->onVSyncEvent(789, {777, 111});
-    expectInterceptCallReceived(789);
     expectThrottleVsyncReceived(777, mConnectionUid);
     expectVsyncEventReceivedByConnection(789, 3u);
 }
@@ -518,27 +501,23 @@
     // EventThread should enable vsync callbacks.
     expectVSyncSetEnabledCallReceived(true);
 
-    // The first event will be seen by the interceptor, and not the connection.
+    // The first event will not be seen by the connection.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
 
-    // The second event will be seen by the interceptor and the connection.
+    // The second event will be seen by the connection.
     mCallback->onVSyncEvent(456, {123, 0});
-    expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection(456, 2u);
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
 
-    // The third event will be seen by the interceptor, and not the connection.
+    // The third event will not be seen by the connection.
     mCallback->onVSyncEvent(789, {777, 744});
-    expectInterceptCallReceived(789);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
     EXPECT_FALSE(mThrottleVsyncCallRecorder.waitForUnexpectedCall().has_value());
 
-    // The fourth event will be seen by the interceptor and the connection.
+    // The fourth event will be seen by the connection.
     mCallback->onVSyncEvent(101112, {7847, 86});
-    expectInterceptCallReceived(101112);
     expectVsyncEventReceivedByConnection(101112, 4u);
 }
 
@@ -551,9 +530,8 @@
     // Destroy the only (strong) reference to the connection.
     mConnection = nullptr;
 
-    // The first event will be seen by the interceptor, and not the connection.
+    // The first event will not be seen by the connection.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
     // EventThread should disable vsync callbacks
@@ -568,16 +546,12 @@
     // EventThread should enable vsync callbacks.
     expectVSyncSetEnabledCallReceived(true);
 
-    // The first event will be seen by the interceptor, and by the connection,
-    // which then returns an error.
+    // The first event will be seen by the connection, which then returns an error.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
 
-    // A subsequent event will be seen by the interceptor and not by the
-    // connection.
+    // A subsequent event will not be seen by the connection.
     mCallback->onVSyncEvent(456, {123, 0});
-    expectInterceptCallReceived(456);
     EXPECT_FALSE(errorConnectionEventRecorder.waitForUnexpectedCall().has_value());
 
     // EventThread should disable vsync callbacks with the second event
@@ -599,10 +573,8 @@
     // EventThread should enable vsync callbacks.
     expectVSyncSetEnabledCallReceived(true);
 
-    // The first event will be seen by the interceptor, and by the connection,
-    // which then returns an error.
+    // The first event will be seen by the connection, which then returns an error.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
     expectVsyncEventReceivedByConnection("successConnection", secondConnectionEventRecorder, 123,
                                          1u);
@@ -617,16 +589,13 @@
     // EventThread should enable vsync callbacks.
     expectVSyncSetEnabledCallReceived(true);
 
-    // The first event will be seen by the interceptor, and by the connection,
-    // which then returns an non-fatal error.
+    // The first event will be seen by the connection, which then returns a non-fatal error.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
 
-    // A subsequent event will be seen by the interceptor, and by the connection,
-    // which still then returns an non-fatal error.
+    // A subsequent event will be seen by the connection, which still then returns a non-fatal
+    // error.
     mCallback->onVSyncEvent(456, {123, 0});
-    expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 456, 2u);
 
     // EventThread will not disable vsync callbacks as the errors are non-fatal.
@@ -748,17 +717,15 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // Use the received callback to signal a first vsync event.
-    // The interceptor should receive the event, but not the connection.
+    // The throttler should receive the event, but not the connection.
     mCallback->onVSyncEvent(123, {456, 789});
-    expectInterceptCallReceived(123);
     expectThrottleVsyncReceived(456, mThrottledConnectionUid);
     mThrottledConnectionEventCallRecorder.waitForUnexpectedCall();
 
     // Use the received callback to signal a second vsync event.
-    // The interceptor should receive the event, but the connection should
+    // The throttler should receive the event, but the connection should
     // not as it was only interested in the first.
     mCallback->onVSyncEvent(456, {123, 0});
-    expectInterceptCallReceived(456);
     expectThrottleVsyncReceived(123, mThrottledConnectionUid);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
diff --git a/services/surfaceflinger/tests/unittests/FakeDisplayInjector.h b/services/surfaceflinger/tests/unittests/FakeDisplayInjector.h
new file mode 100644
index 0000000..81b420c
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/FakeDisplayInjector.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <gmock/gmock.h>
+
+#include "TestableSurfaceFlinger.h"
+#include "mock/DisplayHardware/MockPowerAdvisor.h"
+#include "mock/system/window/MockNativeWindow.h"
+
+namespace android {
+
+using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
+using android::hardware::graphics::composer::hal::HWDisplayId;
+using android::Hwc2::mock::PowerAdvisor;
+using testing::_;
+using testing::AnyNumber;
+using testing::DoAll;
+using testing::Mock;
+using testing::ResultOf;
+using testing::Return;
+using testing::SetArgPointee;
+
+class FakeDisplayInjector {
+public:
+    sp<DisplayDevice> injectDefaultInternalDisplay(
+            const std::function<void(FakeDisplayDeviceInjector&)>& injectExtra,
+            TestableSurfaceFlinger& flinger, uint8_t port = 255u) const {
+        constexpr int DEFAULT_DISPLAY_WIDTH = 1080;
+        constexpr int DEFAULT_DISPLAY_HEIGHT = 1920;
+        constexpr HWDisplayId DEFAULT_DISPLAY_HWC_DISPLAY_ID = 0;
+
+        const PhysicalDisplayId physicalDisplayId = PhysicalDisplayId::fromPort(port);
+
+        // The DisplayDevice is required to have a framebuffer (behind the
+        // ANativeWindow interface) which uses the actual hardware display
+        // size.
+        EXPECT_CALL(*mNativeWindow, query(NATIVE_WINDOW_WIDTH, _))
+                .WillRepeatedly(DoAll(SetArgPointee<1>(DEFAULT_DISPLAY_WIDTH), Return(0)));
+        EXPECT_CALL(*mNativeWindow, query(NATIVE_WINDOW_HEIGHT, _))
+                .WillRepeatedly(DoAll(SetArgPointee<1>(DEFAULT_DISPLAY_HEIGHT), Return(0)));
+        EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_SET_BUFFERS_FORMAT));
+        EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_API_CONNECT));
+        EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_SET_USAGE64));
+        EXPECT_CALL(*mNativeWindow, perform(NATIVE_WINDOW_API_DISCONNECT)).Times(AnyNumber());
+
+        auto compositionDisplay = compositionengine::impl::
+                createDisplay(flinger.getCompositionEngine(),
+                              compositionengine::DisplayCreationArgsBuilder()
+                                      .setId(physicalDisplayId)
+                                      .setPixels({DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT})
+                                      .setPowerAdvisor(mPowerAdvisor)
+                                      .build());
+
+        constexpr bool kIsPrimary = true;
+        auto injector = FakeDisplayDeviceInjector(flinger, compositionDisplay,
+                                                  ui::DisplayConnectionType::Internal,
+                                                  DEFAULT_DISPLAY_HWC_DISPLAY_ID, kIsPrimary);
+
+        injector.setNativeWindow(mNativeWindow);
+        if (injectExtra) {
+            injectExtra(injector);
+        }
+
+        auto displayDevice = injector.inject();
+
+        Mock::VerifyAndClear(mNativeWindow.get());
+
+        return displayDevice;
+    }
+
+    sp<mock::NativeWindow> mNativeWindow = sp<mock::NativeWindow>::make();
+    PowerAdvisor* mPowerAdvisor = new PowerAdvisor();
+};
+
+} // namespace android
\ No newline at end of file
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
index 00f1b08..620825f 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
@@ -77,7 +77,9 @@
     std::vector<RefreshRateRanking> getRefreshRatesByPolicy(
             std::optional<int> anchorGroupOpt, RefreshRateOrder refreshRateOrder) const {
         std::lock_guard lock(mLock);
-        return RefreshRateConfigs::getRefreshRatesByPolicyLocked(anchorGroupOpt, refreshRateOrder);
+        return RefreshRateConfigs::
+                getRefreshRatesByPolicyLocked(anchorGroupOpt, refreshRateOrder,
+                                              /*preferredDisplayModeOpt*/ std::nullopt);
     }
 
     const std::vector<Fps>& knownFrameRates() const { return mKnownFrameRates; }
@@ -344,6 +346,18 @@
     }
 }
 
+TEST_F(RefreshRateConfigsTest, getBestRefreshRate_exactDontChangeRefreshRateWhenNotInPolicy) {
+    TestableRefreshRateConfigs configs(kModes_30_60_72_90_120, kModeId72);
+
+    std::vector<LayerRequirement> layers = {{.weight = 1.f}};
+    layers[0].vote = LayerVoteType::ExplicitExact;
+    layers[0].desiredRefreshRate = 120_Hz;
+
+    EXPECT_EQ(SetPolicyResult::Changed,
+              configs.setDisplayManagerPolicy({kModeId72, {0_Hz, 90_Hz}}));
+    EXPECT_EQ(kMode72, configs.getBestRefreshRate(layers));
+}
+
 TEST_F(RefreshRateConfigsTest, getBestRefreshRate_60_90) {
     TestableRefreshRateConfigs configs(kModes_60_90, kModeId60);
 
@@ -1318,29 +1332,6 @@
             EXPECT_EQ(lr.desiredRefreshRate, configs.getBestRefreshRate(layers)->getFps());
         }
     }
-
-    // Test that 23.976 will choose 24 if 23.976 is not supported
-    {
-        TestableRefreshRateConfigs configs(makeModes(kMode24, kMode25, kMode30, kMode30Frac,
-                                                     kMode60, kMode60Frac),
-                                           kModeId60);
-
-        lr.vote = LayerVoteType::ExplicitExact;
-        lr.desiredRefreshRate = 23.976_Hz;
-        lr.name = "ExplicitExact 23.976 Hz";
-        EXPECT_EQ(kModeId24, configs.getBestRefreshRate(layers)->getId());
-    }
-
-    // Test that 24 will choose 23.976 if 24 is not supported
-    {
-        TestableRefreshRateConfigs configs(makeModes(kMode24Frac, kMode25, kMode30, kMode30Frac,
-                                                     kMode60, kMode60Frac),
-                                           kModeId60);
-
-        lr.desiredRefreshRate = 24_Hz;
-        lr.name = "ExplicitExact 24 Hz";
-        EXPECT_EQ(kModeId24Frac, configs.getBestRefreshRate(layers)->getId());
-    }
 }
 
 TEST_F(RefreshRateConfigsTest,
diff --git a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
index 53e49eb..8d2130f 100644
--- a/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SchedulerTest.cpp
@@ -20,6 +20,7 @@
 
 #include <mutex>
 
+#include "FakeDisplayInjector.h"
 #include "Scheduler/EventThread.h"
 #include "Scheduler/RefreshRateConfigs.h"
 #include "TestableScheduler.h"
@@ -40,6 +41,7 @@
 
 using MockEventThread = android::mock::EventThread;
 using MockLayer = android::mock::MockLayer;
+using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
 
 constexpr PhysicalDisplayId PHYSICAL_DISPLAY_ID = PhysicalDisplayId::fromPort(255u);
 
@@ -59,11 +61,13 @@
 
     SchedulerTest();
 
-    static inline const DisplayModePtr kMode60 = createDisplayMode(DisplayModeId(0), 60_Hz);
-    static inline const DisplayModePtr kMode120 = createDisplayMode(DisplayModeId(1), 120_Hz);
+    static inline const DisplayModePtr kMode60_1 = createDisplayMode(DisplayModeId(0), 60_Hz);
+    static inline const DisplayModePtr kMode120_1 = createDisplayMode(DisplayModeId(1), 120_Hz);
+    static inline const DisplayModePtr kMode60_2 = createDisplayMode(DisplayModeId(2), 60_Hz);
+    static inline const DisplayModePtr kMode120_2 = createDisplayMode(DisplayModeId(3), 120_Hz);
 
     std::shared_ptr<RefreshRateConfigs> mConfigs =
-            std::make_shared<RefreshRateConfigs>(makeModes(kMode60), kMode60->getId());
+            std::make_shared<RefreshRateConfigs>(makeModes(kMode60_1), kMode60_1->getId());
 
     mock::SchedulerCallback mSchedulerCallback;
     TestableScheduler* mScheduler = new TestableScheduler{mConfigs, mSchedulerCallback};
@@ -71,6 +75,7 @@
     ConnectionHandle mConnectionHandle;
     MockEventThread* mEventThread;
     sp<MockEventThreadConnection> mEventThreadConnection;
+    FakeDisplayInjector mFakeDisplayInjector;
 
     TestableSurfaceFlinger mFlinger;
 };
@@ -166,7 +171,7 @@
     constexpr uint32_t kDisplayArea = 999'999;
     mScheduler->onActiveDisplayAreaChanged(kDisplayArea);
 
-    EXPECT_CALL(mSchedulerCallback, requestDisplayMode(_, _)).Times(0);
+    EXPECT_CALL(mSchedulerCallback, requestDisplayModes(_)).Times(0);
     mScheduler->chooseRefreshRateForContent();
 }
 
@@ -176,7 +181,8 @@
     ASSERT_EQ(1u, mScheduler->layerHistorySize());
 
     mScheduler->setRefreshRateConfigs(
-            std::make_shared<RefreshRateConfigs>(makeModes(kMode60, kMode120), kMode60->getId()));
+            std::make_shared<RefreshRateConfigs>(makeModes(kMode60_1, kMode120_1),
+                                                 kMode60_1->getId()));
 
     ASSERT_EQ(0u, mScheduler->getNumActiveLayers());
     mScheduler->recordLayerHistory(layer.get(), 0, LayerHistory::LayerUpdateType::Buffer);
@@ -215,12 +221,18 @@
 }
 
 MATCHER(Is120Hz, "") {
-    return isApproxEqual(arg->getFps(), 120_Hz);
+    return isApproxEqual(arg.front().displayModePtr->getFps(), 120_Hz);
 }
 
 TEST_F(SchedulerTest, chooseRefreshRateForContentSelectsMaxRefreshRate) {
-    mScheduler->setRefreshRateConfigs(
-            std::make_shared<RefreshRateConfigs>(makeModes(kMode60, kMode120), kMode60->getId()));
+    auto display = mFakeDisplayInjector.injectDefaultInternalDisplay(
+            [&](FakeDisplayDeviceInjector& injector) {
+                injector.setDisplayModes(makeModes(kMode60_1, kMode120_1), kMode60_1->getId());
+            },
+            mFlinger);
+
+    mScheduler->registerDisplay(display);
+    mScheduler->setRefreshRateConfigs(display->holdRefreshRateConfigs());
 
     const sp<MockLayer> layer = sp<MockLayer>::make(mFlinger.flinger());
     EXPECT_CALL(*layer, isVisible()).WillOnce(Return(true));
@@ -233,12 +245,111 @@
     constexpr uint32_t kDisplayArea = 999'999;
     mScheduler->onActiveDisplayAreaChanged(kDisplayArea);
 
-    EXPECT_CALL(mSchedulerCallback, requestDisplayMode(Is120Hz(), _)).Times(1);
+    EXPECT_CALL(mSchedulerCallback, requestDisplayModes(Is120Hz())).Times(1);
     mScheduler->chooseRefreshRateForContent();
 
     // No-op if layer requirements have not changed.
-    EXPECT_CALL(mSchedulerCallback, requestDisplayMode(_, _)).Times(0);
+    EXPECT_CALL(mSchedulerCallback, requestDisplayModes(_)).Times(0);
     mScheduler->chooseRefreshRateForContent();
 }
 
+TEST_F(SchedulerTest, getBestDisplayMode_singleDisplay) {
+    auto display = mFakeDisplayInjector.injectDefaultInternalDisplay(
+            [&](FakeDisplayDeviceInjector& injector) {
+                injector.setDisplayModes(makeModes(kMode60_1, kMode120_1), kMode60_1->getId());
+            },
+            mFlinger);
+    mScheduler->registerDisplay(display);
+
+    std::vector<RefreshRateConfigs::LayerRequirement> layers =
+            std::vector<RefreshRateConfigs::LayerRequirement>({{.weight = 1.f}, {.weight = 1.f}});
+    mScheduler->setContentRequirements(layers);
+    GlobalSignals globalSignals = {.idle = true};
+    mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
+
+    std::vector<DisplayModeConfig> displayModeConfigs = mScheduler->getBestDisplayModeConfigs();
+    ASSERT_EQ(1ul, displayModeConfigs.size());
+    EXPECT_EQ(displayModeConfigs.front().displayModePtr, kMode60_1);
+    EXPECT_EQ(displayModeConfigs.front().signals, globalSignals);
+
+    globalSignals = {.idle = false};
+    mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
+    displayModeConfigs = mScheduler->getBestDisplayModeConfigs();
+    ASSERT_EQ(1ul, displayModeConfigs.size());
+    EXPECT_EQ(displayModeConfigs.front().displayModePtr, kMode120_1);
+    EXPECT_EQ(displayModeConfigs.front().signals, globalSignals);
+
+    globalSignals = {.touch = true};
+    mScheduler->replaceTouchTimer(10);
+    mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
+    displayModeConfigs = mScheduler->getBestDisplayModeConfigs();
+    ASSERT_EQ(1ul, displayModeConfigs.size());
+    EXPECT_EQ(displayModeConfigs.front().displayModePtr, kMode120_1);
+    EXPECT_EQ(displayModeConfigs.front().signals, globalSignals);
+
+    mScheduler->unregisterDisplay(display->getPhysicalId());
+    EXPECT_TRUE(mScheduler->mutableDisplays().empty());
+}
+
+TEST_F(SchedulerTest, getBestDisplayModes_multipleDisplays) {
+    auto display1 = mFakeDisplayInjector.injectDefaultInternalDisplay(
+            [&](FakeDisplayDeviceInjector& injector) {
+                injector.setDisplayModes(makeModes(kMode60_1, kMode120_1), kMode60_1->getId());
+            },
+            mFlinger);
+    auto display2 = mFakeDisplayInjector.injectDefaultInternalDisplay(
+            [&](FakeDisplayDeviceInjector& injector) {
+                injector.setDisplayModes(makeModes(kMode60_2, kMode120_2), kMode60_2->getId());
+            },
+            mFlinger, /* port */ 253u);
+    mScheduler->registerDisplay(display1);
+    mScheduler->registerDisplay(display2);
+
+    const std::vector<sp<DisplayDevice>>& expectedDisplays = {display1, display2};
+    std::vector<RefreshRateConfigs::LayerRequirement> layers = {{.weight = 1.f}, {.weight = 1.f}};
+    GlobalSignals globalSignals = {.idle = true};
+    std::vector<DisplayModeConfig> expectedConfigs = {DisplayModeConfig{globalSignals, kMode60_1},
+                                                      DisplayModeConfig{globalSignals, kMode60_2}};
+
+    mScheduler->setContentRequirements(layers);
+    mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
+    std::vector<DisplayModeConfig> displayModeConfigs = mScheduler->getBestDisplayModeConfigs();
+    ASSERT_EQ(displayModeConfigs.size(), expectedConfigs.size());
+    for (size_t i = 0; i < expectedConfigs.size(); ++i) {
+        EXPECT_EQ(expectedConfigs.at(i).displayModePtr, displayModeConfigs.at(i).displayModePtr)
+                << "Expected fps " << expectedConfigs.at(i).displayModePtr->getFps().getIntValue()
+                << " Actual fps "
+                << displayModeConfigs.at(i).displayModePtr->getFps().getIntValue();
+        EXPECT_EQ(globalSignals, displayModeConfigs.at(i).signals);
+    }
+
+    expectedConfigs = std::vector<DisplayModeConfig>{DisplayModeConfig{globalSignals, kMode120_1},
+                                                     DisplayModeConfig{globalSignals, kMode120_2}};
+
+    globalSignals = {.idle = false};
+    mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
+    displayModeConfigs = mScheduler->getBestDisplayModeConfigs();
+    ASSERT_EQ(expectedConfigs.size(), displayModeConfigs.size());
+    for (size_t i = 0; i < expectedConfigs.size(); ++i) {
+        EXPECT_EQ(expectedConfigs.at(i).displayModePtr, displayModeConfigs.at(i).displayModePtr)
+                << "Expected fps " << expectedConfigs.at(i).displayModePtr->getFps().getIntValue()
+                << " Actual fps "
+                << displayModeConfigs.at(i).displayModePtr->getFps().getIntValue();
+        EXPECT_EQ(globalSignals, displayModeConfigs.at(i).signals);
+    }
+
+    globalSignals = {.touch = true};
+    mScheduler->replaceTouchTimer(10);
+    mScheduler->setTouchStateAndIdleTimerPolicy(globalSignals);
+    displayModeConfigs = mScheduler->getBestDisplayModeConfigs();
+    ASSERT_EQ(expectedConfigs.size(), displayModeConfigs.size());
+    for (size_t i = 0; i < expectedConfigs.size(); ++i) {
+        EXPECT_EQ(expectedConfigs.at(i).displayModePtr, displayModeConfigs.at(i).displayModePtr)
+                << "Expected fps " << expectedConfigs.at(i).displayModePtr->getFps().getIntValue()
+                << " Actual fps "
+                << displayModeConfigs.at(i).displayModePtr->getFps().getIntValue();
+        EXPECT_EQ(globalSignals, displayModeConfigs.at(i).signals);
+    }
+}
+
 } // namespace android::scheduler
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
index f7d34ac..6a9c970 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_CreateDisplayTest.cpp
@@ -30,9 +30,6 @@
     // --------------------------------------------------------------------
     // Call Expectations
 
-    // The call should notify the interceptor that a display was created.
-    EXPECT_CALL(*mSurfaceInterceptor, saveDisplayCreation(_)).Times(1);
-
     // --------------------------------------------------------------------
     // Invocation
 
@@ -61,9 +58,6 @@
     // --------------------------------------------------------------------
     // Call Expectations
 
-    // The call should notify the interceptor that a display was created.
-    EXPECT_CALL(*mSurfaceInterceptor, saveDisplayCreation(_)).Times(1);
-
     // --------------------------------------------------------------------
     // Invocation
     int64_t oldId = IPCThreadState::self()->clearCallingIdentity();
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
index 40ef949..93a3811 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DestroyDisplayTest.cpp
@@ -37,9 +37,6 @@
     // --------------------------------------------------------------------
     // Call Expectations
 
-    // The call should notify the interceptor that a display was created.
-    EXPECT_CALL(*mSurfaceInterceptor, saveDisplayDeletion(_)).Times(1);
-
     // Destroying the display commits a display transaction.
     EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame()).Times(1);
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp
index 73f654b..94d517a 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_DisplayTransactionCommitTest.cpp
@@ -90,15 +90,12 @@
     Case::HdrSupport::setupComposerCallExpectations(this);
     Case::PerFrameMetadataSupport::setupComposerCallExpectations(this);
 
-    EXPECT_CALL(*mSurfaceInterceptor, saveDisplayCreation(_)).Times(1);
     expectHotplugReceived<Case, true>(mEventThread);
     expectHotplugReceived<Case, true>(mSFEventThread);
 }
 
 template <typename Case>
 void DisplayTransactionCommitTest::setupCommonCallExpectationsForDisconnectProcessing() {
-    EXPECT_CALL(*mSurfaceInterceptor, saveDisplayDeletion(_)).Times(1);
-
     expectHotplugReceived<Case, false>(mEventThread);
     expectHotplugReceived<Case, false>(mSFEventThread);
 }
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyPowerBoostTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyPowerBoostTest.cpp
index ec7e8a7..4e9f293 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyPowerBoostTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_NotifyPowerBoostTest.cpp
@@ -21,6 +21,7 @@
 #include <thread>
 
 #include "DisplayTransactionTestHelpers.h"
+#include "FakeDisplayInjector.h"
 
 #include <android/hardware/power/Boost.h>
 
@@ -32,6 +33,8 @@
 TEST_F(DisplayTransactionTest, notifyPowerBoostNotifiesTouchEvent) {
     using namespace std::chrono_literals;
 
+    injectDefaultInternalDisplay([](FakeDisplayDeviceInjector&) {});
+
     mFlinger.scheduler()->replaceTouchTimer(100);
     std::this_thread::sleep_for(10ms);                  // wait for callback to be triggered
     EXPECT_TRUE(mFlinger.scheduler()->isTouchActive()); // Starting timer activates touch
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
index 98249bf..f553a23 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_OnInitializeDisplaysTest.cpp
@@ -38,11 +38,6 @@
     // --------------------------------------------------------------------
     // Call Expectations
 
-    // We expect the surface interceptor to possibly be used, but we treat it as
-    // disabled since it is called as a side effect rather than directly by this
-    // function.
-    EXPECT_CALL(*mSurfaceInterceptor, isEnabled()).WillOnce(Return(false));
-
     // We expect a call to get the active display config.
     Case::Display::setupHwcGetActiveConfigCallExpectations(this);
 
diff --git a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
index 6f84437..25857ec 100644
--- a/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SurfaceFlinger_SetPowerModeInternalTest.cpp
@@ -276,13 +276,6 @@
         EXPECT_CALL(*test->mFlinger.scheduler(), scheduleFrame()).Times(1);
     }
 
-    static void setupSurfaceInterceptorCallExpectations(DisplayTransactionTest* test,
-                                                        PowerMode mode) {
-        EXPECT_CALL(*test->mSurfaceInterceptor, isEnabled()).WillOnce(Return(true));
-        EXPECT_CALL(*test->mSurfaceInterceptor, savePowerModeUpdate(_, static_cast<int32_t>(mode)))
-                .Times(1);
-    }
-
     static void setupComposerCallExpectations(DisplayTransactionTest* test, PowerMode mode) {
         // Any calls to get the active config will return a default value.
         EXPECT_CALL(*test->mComposer, getActiveConfig(Display::HWC_DISPLAY_ID, _))
@@ -349,7 +342,6 @@
     // --------------------------------------------------------------------
     // Call Expectations
 
-    Case::setupSurfaceInterceptorCallExpectations(this, Case::Transition::TARGET_POWER_MODE);
     Case::Transition::template setupCallExpectations<Case>(this);
 
     // --------------------------------------------------------------------
diff --git a/services/surfaceflinger/tests/unittests/TestableScheduler.h b/services/surfaceflinger/tests/unittests/TestableScheduler.h
index 93e3059..68df987 100644
--- a/services/surfaceflinger/tests/unittests/TestableScheduler.h
+++ b/services/surfaceflinger/tests/unittests/TestableScheduler.h
@@ -68,6 +68,8 @@
 
     auto& mutableLayerHistory() { return mLayerHistory; }
 
+    auto& mutableDisplays() { return mDisplays; }
+
     size_t layerHistorySize() NO_THREAD_SAFETY_ANALYSIS {
         return mLayerHistory.mActiveLayerInfos.size() + mLayerHistory.mInactiveLayerInfos.size();
     }
@@ -94,6 +96,22 @@
         return mPolicy.touch == Scheduler::TouchState::Active;
     }
 
+    void setTouchStateAndIdleTimerPolicy(GlobalSignals globalSignals) {
+        std::lock_guard<std::mutex> lock(mPolicyLock);
+        mPolicy.touch = globalSignals.touch ? TouchState::Active : TouchState::Inactive;
+        mPolicy.idleTimer = globalSignals.idle ? TimerState::Expired : TimerState::Reset;
+    }
+
+    void setContentRequirements(std::vector<RefreshRateConfigs::LayerRequirement> layers) {
+        std::lock_guard<std::mutex> lock(mPolicyLock);
+        mPolicy.contentRequirements = std::move(layers);
+    }
+
+    std::vector<DisplayModeConfig> getBestDisplayModeConfigs() {
+        std::lock_guard<std::mutex> lock(mPolicyLock);
+        return Scheduler::getBestDisplayModeConfigs();
+    }
+
     void dispatchCachedReportedMode() {
         std::lock_guard<std::mutex> lock(mPolicyLock);
         return Scheduler::dispatchCachedReportedMode();
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index eedd9cf..29ff5ee 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -40,7 +40,6 @@
 #include "StartPropertySetThread.h"
 #include "SurfaceFlinger.h"
 #include "SurfaceFlingerDefaultFactory.h"
-#include "SurfaceInterceptor.h"
 #include "TestableScheduler.h"
 #include "mock/DisplayHardware/MockComposer.h"
 #include "mock/DisplayHardware/MockDisplayMode.h"
@@ -81,10 +80,6 @@
         return std::make_unique<scheduler::FakePhaseOffsets>();
     }
 
-    sp<SurfaceInterceptor> createSurfaceInterceptor() override {
-        return sp<android::impl::SurfaceInterceptor>::make();
-    }
-
     sp<StartPropertySetThread> createStartPropertySetThread(bool timestampPropertyValue) override {
         return sp<StartPropertySetThread>::make(timestampPropertyValue);
     }
@@ -417,8 +412,13 @@
         return mFlinger->SurfaceFlinger::getDisplayNativePrimaries(displayToken, primaries);
     }
 
-    auto& getTransactionQueue() { return mFlinger->mLocklessTransactionQueue; }
-    auto& getPendingTransactionQueue() { return mFlinger->mPendingTransactionQueues; }
+    auto& getTransactionQueue() { return mFlinger->mTransactionHandler.mLocklessTransactionQueue; }
+    auto& getPendingTransactionQueue() {
+        return mFlinger->mTransactionHandler.mPendingTransactionQueues;
+    }
+    size_t getPendingTransactionCount() {
+        return mFlinger->mTransactionHandler.mPendingTransactionCount.load();
+    }
 
     auto setTransactionState(
             const FrameTimelineInfo& frameTimelineInfo, const Vector<ComposerState>& states,
@@ -463,16 +463,14 @@
         mFlinger->onActiveDisplayChangedLocked(activeDisplay);
     }
 
-    auto createLayer(LayerCreationArgs& args, sp<IBinder>* outHandle,
-                     const sp<IBinder>& parentHandle, int32_t* outLayerId,
-                     const sp<Layer>& parentLayer, uint32_t* outTransformHint) {
-        return mFlinger->createLayer(args, outHandle, parentHandle, outLayerId, parentLayer,
-                                     outTransformHint);
+    auto createLayer(LayerCreationArgs& args, const sp<IBinder>& parentHandle,
+                     gui::CreateSurfaceResult& outResult) {
+        return mFlinger->createLayer(args, parentHandle, outResult);
     }
 
     auto mirrorLayer(const LayerCreationArgs& args, const sp<IBinder>& mirrorFromHandle,
-                     sp<IBinder>* outHandle, int32_t* outLayerId) {
-        return mFlinger->mirrorLayer(args, mirrorFromHandle, outHandle, outLayerId);
+                     gui::CreateSurfaceResult& outResult) {
+        return mFlinger->mirrorLayer(args, mirrorFromHandle, outResult);
     }
 
     void updateLayerMetadataSnapshot() { mFlinger->updateLayerMetadataSnapshot(); }
@@ -513,7 +511,6 @@
     auto& mutablePhysicalDisplays() { return mFlinger->mPhysicalDisplays; }
     auto& mutableDrawingState() { return mFlinger->mDrawingState; }
     auto& mutableGeometryDirty() { return mFlinger->mGeometryDirty; }
-    auto& mutableInterceptor() { return mFlinger->mInterceptor; }
     auto& mutableMainThreadId() { return mFlinger->mMainThreadId; }
     auto& mutablePendingHotplugEvents() { return mFlinger->mPendingHotplugEvents; }
     auto& mutableTexturePool() { return mFlinger->mTexturePool; }
@@ -538,7 +535,6 @@
         mutableDisplays().clear();
         mutableCurrentState().displays.clear();
         mutableDrawingState().displays.clear();
-        mutableInterceptor().clear();
         mFlinger->mScheduler.reset();
         mFlinger->mCompositionEngine->setHwComposer(std::unique_ptr<HWComposer>());
         mFlinger->mCompositionEngine->setRenderEngine(
@@ -837,6 +833,9 @@
 
             sp<DisplayDevice> display = sp<DisplayDevice>::make(mCreationArgs);
             mFlinger.mutableDisplays().emplace_or_replace(mDisplayToken, display);
+            if (mFlinger.scheduler()) {
+                mFlinger.scheduler()->registerDisplay(display);
+            }
 
             DisplayDeviceState state;
             state.isSecure = mCreationArgs.isSecure;
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index b4030b3..db438b7 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 #undef LOG_TAG
 #define LOG_TAG "CompositionTest"
 
@@ -22,12 +21,17 @@
 #include <compositionengine/mock/DisplaySurface.h>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
+#include <gui/LayerState.h>
 #include <gui/SurfaceComposerClient.h>
+#include <gui/fake/BufferData.h>
 #include <log/log.h>
 #include <ui/MockFence.h>
 #include <utils/String8.h>
+#include <vector>
+#include <binder/Binder.h>
 
 #include "TestableSurfaceFlinger.h"
+#include "TransactionHandler.h"
 #include "mock/MockEventThread.h"
 #include "mock/MockVsyncController.h"
 
@@ -78,6 +82,7 @@
         mFlinger.setupScheduler(std::unique_ptr<mock::VsyncController>(mVsyncController),
                                 std::unique_ptr<mock::VSyncTracker>(mVSyncTracker),
                                 std::move(eventThread), std::move(sfEventThread));
+        mFlinger.flinger()->addTransactionReadyFilters();
     }
 
     TestableSurfaceFlinger mFlinger;
@@ -314,7 +319,10 @@
 
     ComposerState createComposerState(int layerId, sp<Fence> fence, uint64_t what) {
         ComposerState state;
-        state.state.bufferData = std::make_shared<BufferData>();
+        state.state.bufferData =
+                std::make_shared<fake::BufferData>(/* bufferId */ 123L, /* width */ 1,
+                                                   /* height */ 2, /* pixelFormat */ 0,
+                                                   /* outUsage */ 0);
         state.state.bufferData->acquireFence = std::move(fence);
         state.state.layerId = layerId;
         state.state.surface =
@@ -361,7 +369,7 @@
         }
         mFlinger.flushTransactionQueues();
         EXPECT_TRUE(mFlinger.getTransactionQueue().isEmpty());
-        EXPECT_EQ(expectedTransactionsPending, mFlinger.getPendingTransactionQueue().size());
+        EXPECT_EQ(expectedTransactionsPending, mFlinger.getPendingTransactionCount());
     }
 };
 
@@ -413,7 +421,9 @@
                                   {
                                           createComposerState(kLayerId,
                                                               fence(Fence::Status::Unsignaled),
-                                                              layer_state_t::eCropChanged),
+                                                              layer_state_t::eCropChanged |
+                                                                      layer_state_t::
+                                                                              eBufferChanged),
                                   });
     setTransactionStates({unsignaledTransaction}, kExpectedTransactionsPending);
 }
@@ -536,41 +546,6 @@
                          kExpectedTransactionsPending);
 }
 
-TEST_F(LatchUnsignaledAutoSingleLayerTest, UnsignaledNotAppliedWhenThereAreSignaled_SignaledFirst) {
-    const sp<IBinder> kApplyToken1 =
-            IInterface::asBinder(TransactionCompletedListener::getIInstance());
-    const sp<IBinder> kApplyToken2 = sp<BBinder>::make();
-    const sp<IBinder> kApplyToken3 = sp<BBinder>::make();
-    const auto kLayerId1 = 1;
-    const auto kLayerId2 = 2;
-    const auto kExpectedTransactionsPending = 1u;
-
-    const auto signaledTransaction =
-            createTransactionInfo(kApplyToken1,
-                                  {
-                                          createComposerState(kLayerId1,
-                                                              fence(Fence::Status::Signaled),
-                                                              layer_state_t::eBufferChanged),
-                                  });
-    const auto signaledTransaction2 =
-            createTransactionInfo(kApplyToken2,
-                                  {
-                                          createComposerState(kLayerId1,
-                                                              fence(Fence::Status::Signaled),
-                                                              layer_state_t::eBufferChanged),
-                                  });
-    const auto unsignaledTransaction =
-            createTransactionInfo(kApplyToken3,
-                                  {
-                                          createComposerState(kLayerId2,
-                                                              fence(Fence::Status::Unsignaled),
-                                                              layer_state_t::eBufferChanged),
-                                  });
-
-    setTransactionStates({signaledTransaction, signaledTransaction2, unsignaledTransaction},
-                         kExpectedTransactionsPending);
-}
-
 TEST_F(LatchUnsignaledAutoSingleLayerTest, Flush_KeepsTransactionInTheQueueSameApplyToken) {
     const sp<IBinder> kApplyToken =
             IInterface::asBinder(TransactionCompletedListener::getIInstance());
@@ -798,7 +773,7 @@
             IInterface::asBinder(TransactionCompletedListener::getIInstance());
     const auto kLayerId1 = 1;
     const auto kLayerId2 = 2;
-    const auto kExpectedTransactionsPending = 1u;
+    const auto kExpectedTransactionsPending = 2u;
 
     const auto unsignaledTransaction =
             createTransactionInfo(kApplyToken,
@@ -1004,4 +979,16 @@
     setTransactionStates({unsignaledTransaction}, kExpectedTransactionsPending);
 }
 
+TEST(TransactionHandlerTest, QueueTransaction) {
+    TransactionHandler handler;
+    TransactionState transaction;
+    transaction.applyToken = sp<BBinder>::make();
+    transaction.id = 42;
+    handler.queueTransaction(std::move(transaction));
+    std::vector<TransactionState> transactionsReadyToBeApplied = handler.flushTransactions();
+
+    EXPECT_EQ(transactionsReadyToBeApplied.size(), 1u);
+    EXPECT_EQ(transactionsReadyToBeApplied.front().id, 42u);
+}
+
 } // namespace android
diff --git a/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp b/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp
index 1f011be..14e1aac 100644
--- a/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp
@@ -49,7 +49,8 @@
         ComposerState s;
         if (i == 1) {
             layer.parentSurfaceControlForChild =
-                    sp<SurfaceControl>::make(SurfaceComposerClient::getDefault(), layerHandle, 42);
+                    sp<SurfaceControl>::make(SurfaceComposerClient::getDefault(), layerHandle, 42,
+                                             "#42");
         }
         s.state = layer;
         t1.states.add(s);
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
index 5267586..8af2dfa 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockSchedulerCallback.h
@@ -24,14 +24,14 @@
 
 struct SchedulerCallback final : ISchedulerCallback {
     MOCK_METHOD(void, setVsyncEnabled, (bool), (override));
-    MOCK_METHOD(void, requestDisplayMode, (DisplayModePtr, DisplayModeEvent), (override));
+    MOCK_METHOD(void, requestDisplayModes, (std::vector<scheduler::DisplayModeConfig>), (override));
     MOCK_METHOD(void, kernelTimerChanged, (bool), (override));
     MOCK_METHOD(void, triggerOnFrameRateOverridesChanged, (), (override));
 };
 
 struct NoOpSchedulerCallback final : ISchedulerCallback {
     void setVsyncEnabled(bool) override {}
-    void requestDisplayMode(DisplayModePtr, DisplayModeEvent) override {}
+    void requestDisplayModes(std::vector<scheduler::DisplayModeConfig>) override {}
     void kernelTimerChanged(bool) override {}
     void triggerOnFrameRateOverridesChanged() override {}
 };
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSurfaceInterceptor.cpp b/services/surfaceflinger/tests/unittests/mock/MockSurfaceInterceptor.cpp
deleted file mode 100644
index 0a0e7b5..0000000
--- a/services/surfaceflinger/tests/unittests/mock/MockSurfaceInterceptor.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-#include "mock/MockSurfaceInterceptor.h"
-
-namespace android::mock {
-
-// Explicit default instantiation is recommended.
-SurfaceInterceptor::SurfaceInterceptor() = default;
-SurfaceInterceptor::~SurfaceInterceptor() = default;
-
-} // namespace android::mock
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/unittests/mock/MockSurfaceInterceptor.h b/services/surfaceflinger/tests/unittests/mock/MockSurfaceInterceptor.h
deleted file mode 100644
index b085027..0000000
--- a/services/surfaceflinger/tests/unittests/mock/MockSurfaceInterceptor.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <gmock/gmock.h>
-
-#include "SurfaceInterceptor.h"
-
-namespace android::mock {
-
-class SurfaceInterceptor : public android::SurfaceInterceptor {
-public:
-    SurfaceInterceptor();
-    ~SurfaceInterceptor() override;
-
-    MOCK_METHOD2(enable,
-                 void(const SortedVector<sp<Layer>>&,
-                      const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>&));
-    MOCK_METHOD0(disable, void());
-    MOCK_METHOD0(isEnabled, bool());
-    MOCK_METHOD1(addTransactionTraceListener, void(const sp<gui::ITransactionTraceListener>&));
-    MOCK_METHOD1(binderDied, void(const wp<IBinder>&));
-    MOCK_METHOD7(saveTransaction,
-                 void(const Vector<ComposerState>&,
-                      const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>&,
-                      const Vector<DisplayState>&, uint32_t, int, int, uint64_t));
-    MOCK_METHOD1(saveSurfaceCreation, void(const sp<const Layer>&));
-    MOCK_METHOD1(saveSurfaceDeletion, void(const sp<const Layer>&));
-    MOCK_METHOD4(saveBufferUpdate, void(int32_t, uint32_t, uint32_t, uint64_t));
-    MOCK_METHOD1(saveDisplayCreation, void(const DisplayDeviceState&));
-    MOCK_METHOD1(saveDisplayDeletion, void(int32_t));
-    MOCK_METHOD2(savePowerModeUpdate, void(int32_t, int32_t));
-    MOCK_METHOD1(saveVSyncEvent, void(nsecs_t));
-};
-
-} // namespace android::mock
diff --git a/services/surfaceflinger/tests/utils/ScreenshotUtils.h b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
index 224868c..f297da5 100644
--- a/services/surfaceflinger/tests/utils/ScreenshotUtils.h
+++ b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
@@ -51,7 +51,11 @@
     }
 
     static void captureScreen(std::unique_ptr<ScreenCapture>* sc) {
-        captureScreen(sc, SurfaceComposerClient::getInternalDisplayToken());
+        const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
+        // TODO(b/248317436): extend to cover all displays for multi-display devices
+        const auto display =
+                ids.empty() ? nullptr : SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
+        captureScreen(sc, display);
     }
 
     static void captureScreen(std::unique_ptr<ScreenCapture>* sc, sp<IBinder> displayToken) {