diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index ae44d38..7d1c1ad 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -420,6 +420,32 @@
     return true;
 }
 
+binder::Status InstalldNativeService::createAppDataBatched(
+        const std::unique_ptr<std::vector<std::unique_ptr<std::string>>>& uuids,
+        const std::unique_ptr<std::vector<std::unique_ptr<std::string>>>& packageNames,
+        int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
+        const std::vector<std::string>& seInfos, const std::vector<int32_t>& targetSdkVersions,
+        int64_t* _aidl_return) {
+    ENFORCE_UID(AID_SYSTEM);
+    std::lock_guard<std::recursive_mutex> lock(mLock);
+
+    ATRACE_BEGIN("createAppDataBatched");
+    binder::Status ret;
+    for (size_t i = 0; i < uuids->size(); i++) {
+        if (!packageNames->at(i)) {
+            continue;
+        }
+        ret = createAppData(uuids->at(i), *packageNames->at(i), userId, flags, appIds[i],
+                seInfos[i], targetSdkVersions[i], _aidl_return);
+        if (!ret.isOk()) {
+            ATRACE_END();
+            return ret;
+        }
+    }
+    ATRACE_END();
+    return ok();
+}
+
 binder::Status InstalldNativeService::createAppData(const std::unique_ptr<std::string>& uuid,
         const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
         const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return) {
diff --git a/cmds/installd/InstalldNativeService.h b/cmds/installd/InstalldNativeService.h
index eb151ca..8e7d98b 100644
--- a/cmds/installd/InstalldNativeService.h
+++ b/cmds/installd/InstalldNativeService.h
@@ -44,7 +44,12 @@
             int32_t userSerial, int32_t flags);
     binder::Status destroyUserData(const std::unique_ptr<std::string>& uuid, int32_t userId,
             int32_t flags);
-
+    binder::Status createAppDataBatched(
+            const std::unique_ptr<std::vector<std::unique_ptr<std::string>>>& uuids,
+            const std::unique_ptr<std::vector<std::unique_ptr<std::string>>>& packageNames,
+            int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
+            const std::vector<std::string>& seInfos, const std::vector<int32_t>& targetSdkVersions,
+            int64_t* _aidl_return);
     binder::Status createAppData(const std::unique_ptr<std::string>& uuid,
             const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
             const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return);
diff --git a/cmds/installd/binder/android/os/IInstalld.aidl b/cmds/installd/binder/android/os/IInstalld.aidl
index 5e5af73..eeda6c5 100644
--- a/cmds/installd/binder/android/os/IInstalld.aidl
+++ b/cmds/installd/binder/android/os/IInstalld.aidl
@@ -23,6 +23,9 @@
 
     long createAppData(@nullable @utf8InCpp String uuid, in @utf8InCpp String packageName,
             int userId, int flags, int appId, in @utf8InCpp String seInfo, int targetSdkVersion);
+    long createAppDataBatched(in @nullable @utf8InCpp String[] uuids,
+        in @nullable @utf8InCpp String[] packageNames, in int userId, int flags, in int[] appIds,
+        in @utf8InCpp String[] seInfos, in int[] targetSdkVersions);
     void restoreconAppData(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,
             int userId, int flags, int appId, @utf8InCpp String seInfo);
     void migrateAppData(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,
diff --git a/cmds/installd/dexopt.cpp b/cmds/installd/dexopt.cpp
index 5ee6a9f..ebca892 100644
--- a/cmds/installd/dexopt.cpp
+++ b/cmds/installd/dexopt.cpp
@@ -262,6 +262,17 @@
   return "";
 }
 
+static std::string MapPropertyToArgWithBackup(const std::string& property,
+                                              const std::string& backupProperty,
+                                              const std::string& format,
+                                              const std::string& default_value = "") {
+  std::string value = GetProperty(property, default_value);
+  if (!value.empty()) {
+    return StringPrintf(format.c_str(), value.c_str());
+  }
+  return MapPropertyToArg(backupProperty, format, default_value);
+}
+
 // Determines which binary we should use for execution (the debug or non-debug version).
 // e.g. dex2oatd vs dex2oat
 static const char* select_execution_binary(const char* binary, const char* debug_binary,
@@ -321,6 +332,7 @@
                const char* compiler_filter,
                bool debuggable,
                bool post_bootcomplete,
+               bool for_restore,
                bool background_job_compile,
                int profile_fd,
                const char* class_loader_context,
@@ -336,14 +348,24 @@
         std::string dex2oat_Xms_arg = MapPropertyToArg("dalvik.vm.dex2oat-Xms", "-Xms%s");
         std::string dex2oat_Xmx_arg = MapPropertyToArg("dalvik.vm.dex2oat-Xmx", "-Xmx%s");
 
-        const char* threads_property = post_bootcomplete
-                ? "dalvik.vm.dex2oat-threads"
-                : "dalvik.vm.boot-dex2oat-threads";
-        std::string dex2oat_threads_arg = MapPropertyToArg(threads_property, "-j%s");
-        const char* cpu_set_property = post_bootcomplete
-                ? "dalvik.vm.dex2oat-cpu-set"
-                : "dalvik.vm.boot-dex2oat-cpu-set";
-        std::string dex2oat_cpu_set_arg = MapPropertyToArg(cpu_set_property, "--cpu-set=%s");
+        std::string threads_format = "-j%s";
+        std::string dex2oat_threads_arg = post_bootcomplete
+                ? (for_restore
+                    ? MapPropertyToArgWithBackup(
+                            "dalvik.vm.restore-dex2oat-threads",
+                            "dalvik.vm.dex2oat-threads",
+                            threads_format)
+                    : MapPropertyToArg("dalvik.vm.dex2oat-threads", threads_format))
+                : MapPropertyToArg("dalvik.vm.boot-dex2oat-threads", threads_format);
+        std::string cpu_set_format = "--cpu-set=%s";
+        std::string dex2oat_cpu_set_arg = post_bootcomplete
+                ? (for_restore
+                    ? MapPropertyToArgWithBackup(
+                            "dalvik.vm.restore-dex2oat-cpu-set",
+                            "dalvik.vm.dex2oat-cpu-set",
+                            cpu_set_format)
+                    : MapPropertyToArg("dalvik.vm.dex2oat-cpu-set", cpu_set_format))
+                : MapPropertyToArg("dalvik.vm.boot-dex2oat-cpu-set", cpu_set_format);
 
         std::string bootclasspath;
         char* dex2oat_bootclasspath = getenv("DEX2OATBOOTCLASSPATH");
@@ -407,8 +429,17 @@
             MapPropertyToArg("dalvik.vm.dex2oat-very-large", "--very-large-app-threshold=%s");
 
 
+
+        // Decide whether to use dex2oat64.
+        bool use_dex2oat64 = false;
+        // Check whether the device even supports 64-bit ABIs.
+        if (!GetProperty("ro.product.cpu.abilist64", "").empty()) {
+          use_dex2oat64 = GetBoolProperty("dalvik.vm.dex2oat64.enabled", false);
+        }
         const char* dex2oat_bin = select_execution_binary(
-            kDex2oatPath, kDex2oatDebugPath, background_job_compile);
+            (use_dex2oat64 ? kDex2oat64Path : kDex2oat32Path),
+            (use_dex2oat64 ? kDex2oatDebug64Path : kDex2oatDebug32Path),
+            background_job_compile);
 
         bool generate_minidebug_info = kEnableMinidebugInfo &&
                 GetBoolProperty(kMinidebugInfoSystemProperty, kMinidebugInfoSystemPropertyDefault);
@@ -2075,6 +2106,7 @@
     bool enable_hidden_api_checks = (dexopt_flags & DEXOPT_ENABLE_HIDDEN_API_CHECKS) != 0;
     bool generate_compact_dex = (dexopt_flags & DEXOPT_GENERATE_COMPACT_DEX) != 0;
     bool generate_app_image = (dexopt_flags & DEXOPT_GENERATE_APP_IMAGE) != 0;
+    bool for_restore = (dexopt_flags & DEXOPT_FOR_RESTORE) != 0;
 
     // Check if we're dealing with a secondary dex file and if we need to compile it.
     std::string oat_dir_str;
@@ -2191,6 +2223,7 @@
                       compiler_filter,
                       debuggable,
                       boot_complete,
+                      for_restore,
                       background_job_compile,
                       reference_profile_fd.get(),
                       class_loader_context,
diff --git a/cmds/installd/dexopt.h b/cmds/installd/dexopt.h
index ef739ba..cc44873 100644
--- a/cmds/installd/dexopt.h
+++ b/cmds/installd/dexopt.h
@@ -34,8 +34,10 @@
 
 #define ANDROID_ART_APEX_BIN "/apex/com.android.art/bin"
 // Location of binaries in the Android Runtime APEX.
-static constexpr const char* kDex2oatPath = ANDROID_ART_APEX_BIN "/dex2oat";
-static constexpr const char* kDex2oatDebugPath = ANDROID_ART_APEX_BIN "/dex2oatd";
+static constexpr const char* kDex2oat32Path = ANDROID_ART_APEX_BIN "/dex2oat32";
+static constexpr const char* kDex2oat64Path = ANDROID_ART_APEX_BIN "/dex2oat64";
+static constexpr const char* kDex2oatDebug32Path = ANDROID_ART_APEX_BIN "/dex2oatd32";
+static constexpr const char* kDex2oatDebug64Path = ANDROID_ART_APEX_BIN "/dex2oatd64";
 static constexpr const char* kProfmanPath = ANDROID_ART_APEX_BIN "/profman";
 static constexpr const char* kProfmanDebugPath = ANDROID_ART_APEX_BIN "/profmand";
 static constexpr const char* kDexoptanalyzerPath = ANDROID_ART_APEX_BIN "/dexoptanalyzer";
diff --git a/cmds/installd/installd_constants.h b/cmds/installd/installd_constants.h
index c928631..b5ee481 100644
--- a/cmds/installd/installd_constants.h
+++ b/cmds/installd/installd_constants.h
@@ -55,6 +55,7 @@
 constexpr int DEXOPT_ENABLE_HIDDEN_API_CHECKS = 1 << 10;
 constexpr int DEXOPT_GENERATE_COMPACT_DEX = 1 << 11;
 constexpr int DEXOPT_GENERATE_APP_IMAGE = 1 << 12;
+constexpr int DEXOPT_FOR_RESTORE = 1 << 13; // TODO(b/135202722): remove
 
 /* all known values for dexopt flags */
 constexpr int DEXOPT_MASK =
@@ -69,7 +70,8 @@
     | DEXOPT_IDLE_BACKGROUND_JOB
     | DEXOPT_ENABLE_HIDDEN_API_CHECKS
     | DEXOPT_GENERATE_COMPACT_DEX
-    | DEXOPT_GENERATE_APP_IMAGE;
+    | DEXOPT_GENERATE_APP_IMAGE
+    | DEXOPT_FOR_RESTORE;
 
 // NOTE: keep in sync with StorageManager
 constexpr int FLAG_STORAGE_DE = 1 << 0;
diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index d773790..18f8268 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -83,7 +83,7 @@
 static_assert(DEXOPT_GENERATE_COMPACT_DEX == 1 << 11, "DEXOPT_GENERATE_COMPACT_DEX unexpected");
 static_assert(DEXOPT_GENERATE_APP_IMAGE == 1 << 12, "DEXOPT_GENERATE_APP_IMAGE unexpected");
 
-static_assert(DEXOPT_MASK           == (0x1dfe | DEXOPT_IDLE_BACKGROUND_JOB),
+static_assert(DEXOPT_MASK           == (0x3dfe | DEXOPT_IDLE_BACKGROUND_JOB),
               "DEXOPT_MASK unexpected.");
 
 
diff --git a/cmds/installd/tests/installd_dexopt_test.cpp b/cmds/installd/tests/installd_dexopt_test.cpp
index 69fefa1..16e4055 100644
--- a/cmds/installd/tests/installd_dexopt_test.cpp
+++ b/cmds/installd/tests/installd_dexopt_test.cpp
@@ -653,6 +653,15 @@
                         DEX2OAT_FROM_SCRATCH);
 }
 
+TEST_F(DexoptTest, DexoptPrimaryPublicRestore) {
+    LOG(INFO) << "DexoptPrimaryPublicRestore";
+    CompilePrimaryDexOk("verify",
+                        DEXOPT_FOR_RESTORE | DEXOPT_BOOTCOMPLETE | DEXOPT_PUBLIC,
+                        app_oat_dir_.c_str(),
+                        kTestAppGid,
+                        DEX2OAT_FROM_SCRATCH);
+}
+
 TEST_F(DexoptTest, DexoptPrimaryFailedInvalidFilter) {
     LOG(INFO) << "DexoptPrimaryFailedInvalidFilter";
     binder::Status status;
@@ -750,6 +759,36 @@
     EXPECT_TRUE(found_enable);
 }
 
+TEST_F(DexoptTest, DexoptDex2oat64Enabled) {
+    LOG(INFO) << "DexoptDex2oat64Enabled";
+    const std::string property = "dalvik.vm.dex2oat64.enabled";
+    const std::string previous_value = android::base::GetProperty(property, "");
+    auto restore_property = android::base::make_scope_guard([=]() {
+        android::base::SetProperty(property, previous_value);
+    });
+    std::string odex = GetPrimaryDexArtifact(app_oat_dir_.c_str(), apk_path_, "odex");
+    // Disable the property and use dex2oat32.
+    ASSERT_TRUE(android::base::SetProperty(property, "false")) << property;
+    CompilePrimaryDexOk("speed-profile",
+                        DEXOPT_IDLE_BACKGROUND_JOB | DEXOPT_PROFILE_GUIDED |
+                                DEXOPT_GENERATE_APP_IMAGE,
+                        app_oat_dir_.c_str(),
+                        kTestAppGid,
+                        DEX2OAT_FROM_SCRATCH,
+                        /*binder_result=*/nullptr,
+                        empty_dm_file_.c_str());
+    // Enable the property and use dex2oat64.
+    ASSERT_TRUE(android::base::SetProperty(property, "true")) << property;
+    CompilePrimaryDexOk("speed-profile",
+                        DEXOPT_IDLE_BACKGROUND_JOB | DEXOPT_PROFILE_GUIDED |
+                                DEXOPT_GENERATE_APP_IMAGE,
+                        app_oat_dir_.c_str(),
+                        kTestAppGid,
+                        DEX2OAT_FROM_SCRATCH,
+                        /*binder_result=*/nullptr,
+                        empty_dm_file_.c_str());
+}
+
 class PrimaryDexReCompilationTest : public DexoptTest {
   public:
     virtual void SetUp() {
diff --git a/headers/media_plugin/media/openmax/OMX_IndexExt.h b/headers/media_plugin/media/openmax/OMX_IndexExt.h
index bbb3193..a427db7 100644
--- a/headers/media_plugin/media/openmax/OMX_IndexExt.h
+++ b/headers/media_plugin/media/openmax/OMX_IndexExt.h
@@ -89,6 +89,7 @@
     OMX_IndexParamVideoVp9,                         /**< reference: OMX_VIDEO_PARAM_VP9TYPE */
     OMX_IndexParamVideoAndroidVp9Encoder,           /**< reference: OMX_VIDEO_PARAM_ANDROID_VP9ENCODERTYPE */
     OMX_IndexParamVideoAndroidImageGrid,            /**< reference: OMX_VIDEO_PARAM_ANDROID_IMAGEGRIDTYPE */
+    OMX_IndexParamVideoAndroidRequiresSwRenderer,   /**< reference: OMX_PARAM_U32TYPE */
     OMX_IndexExtVideoEndUnused,
 
     /* Image & Video common configurations */
diff --git a/include/input/InputWindow.h b/include/input/InputWindow.h
index c44db51..a695a8f 100644
--- a/include/input/InputWindow.h
+++ b/include/input/InputWindow.h
@@ -123,17 +123,17 @@
     // input windows that have the same token.
     sp<IBinder> token;
     // This uniquely identifies the input window.
-    int32_t id = 0;
+    int32_t id = -1;
     std::string name;
-    int32_t layoutParamsFlags;
-    int32_t layoutParamsType;
-    nsecs_t dispatchingTimeout;
+    int32_t layoutParamsFlags = 0;
+    int32_t layoutParamsType = 0;
+    nsecs_t dispatchingTimeout = -1;
 
     /* These values are filled in by SurfaceFlinger. */
-    int32_t frameLeft;
-    int32_t frameTop;
-    int32_t frameRight;
-    int32_t frameBottom;
+    int32_t frameLeft = -1;
+    int32_t frameTop = -1;
+    int32_t frameRight = -1;
+    int32_t frameBottom = -1;
 
     /*
      * SurfaceFlinger consumes this value to shrink the computed frame. This is
@@ -145,7 +145,7 @@
 
     // A global scaling factor for all windows. Unlike windowScaleX/Y this results
     // in scaling of the TOUCH_MAJOR/TOUCH_MINOR axis.
-    float globalScaleFactor;
+    float globalScaleFactor = 1.0f;
 
     // Scaling factors applied to individual windows.
     float windowXScale = 1.0f;
@@ -156,18 +156,18 @@
      * to absolute coordinates by SurfaceFlinger once the frame is computed.
      */
     Region touchableRegion;
-    bool visible;
-    bool canReceiveKeys;
-    bool hasFocus;
-    bool hasWallpaper;
-    bool paused;
-    int32_t ownerPid;
-    int32_t ownerUid;
-    int32_t inputFeatures;
-    int32_t displayId;
+    bool visible = false;
+    bool canReceiveKeys = false;
+    bool hasFocus = false;
+    bool hasWallpaper = false;
+    bool paused = false;
+    int32_t ownerPid = -1;
+    int32_t ownerUid = -1;
+    int32_t inputFeatures = 0;
+    int32_t displayId = ADISPLAY_ID_NONE;
     int32_t portalToDisplayId = ADISPLAY_ID_NONE;
     InputApplicationInfo applicationInfo;
-    bool replaceTouchableRegionWithCrop;
+    bool replaceTouchableRegionWithCrop = false;
     wp<IBinder> touchableRegionCropHandle;
 
     void addTouchableRegion(const Rect& region);
@@ -213,7 +213,7 @@
     }
 
     inline std::string getName() const {
-        return mInfo.token ? mInfo.name : "<invalid>";
+        return !mInfo.name.empty() ? mInfo.name : "<invalid>";
     }
 
     inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const {
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index e6cfeb4..7298282 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -170,6 +170,7 @@
 
 aidl_interface {
     name: "libbinder_aidl_test_stub",
+    unstable: true,
     local_include_dir: "aidl",
     srcs: [":libbinder_aidl"],
     vendor_available: true,
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 9e89c57..d67ce15 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -997,7 +997,11 @@
     if (err >= NO_ERROR) {
         if (bwr.write_consumed > 0) {
             if (bwr.write_consumed < mOut.dataSize())
-                LOG_ALWAYS_FATAL("Driver did not consume write buffer");
+                LOG_ALWAYS_FATAL("Driver did not consume write buffer. "
+                                 "err: %s consumed: %zu of %zu",
+                                 statusToString(err).c_str(),
+                                 (size_t)bwr.write_consumed,
+                                 mOut.dataSize());
             else {
                 mOut.setDataSize(0);
                 processPostWriteDerefs();
diff --git a/libs/binder/LazyServiceRegistrar.cpp b/libs/binder/LazyServiceRegistrar.cpp
index 74aece8..6f49aa1 100644
--- a/libs/binder/LazyServiceRegistrar.cpp
+++ b/libs/binder/LazyServiceRegistrar.cpp
@@ -82,12 +82,12 @@
         return false;
     }
 
-    if (!manager->registerClientCallback(name, service, this).isOk()) {
-        ALOGE("Failed to add client callback for service %s", name.c_str());
-        return false;
-    }
-
     if (!reRegister) {
+        if (!manager->registerClientCallback(name, service, this).isOk()) {
+            ALOGE("Failed to add client callback for service %s", name.c_str());
+            return false;
+        }
+
         // Only add this when a service is added for the first time, as it is not removed
         mRegisteredServices[name] = {service, allowIsolated, dumpFlags};
     }
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index beab270..9642a87 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -987,12 +987,22 @@
 
 status_t Parcel::writeString8(const String8& str)
 {
-    status_t err = writeInt32(str.bytes());
-    // only write string if its length is more than zero characters,
-    // as readString8 will only read if the length field is non-zero.
-    // this is slightly different from how writeString16 works.
-    if (str.bytes() > 0 && err == NO_ERROR) {
-        err = write(str.string(), str.bytes()+1);
+    return writeString8(str.string(), str.size());
+}
+
+status_t Parcel::writeString8(const char* str, size_t len)
+{
+    if (str == nullptr) return writeInt32(-1);
+
+    status_t err = writeInt32(len);
+    if (err == NO_ERROR) {
+        uint8_t* data = (uint8_t*)writeInplace(len+sizeof(char));
+        if (data) {
+            memcpy(data, str, len);
+            *reinterpret_cast<char*>(data+len) = 0;
+            return NO_ERROR;
+        }
+        err = mError;
     }
     return err;
 }
@@ -1832,37 +1842,39 @@
 
 String8 Parcel::readString8() const
 {
-    String8 retString;
-    status_t status = readString8(&retString);
-    if (status != OK) {
-        // We don't care about errors here, so just return an empty string.
-        return String8();
-    }
-    return retString;
+    size_t len;
+    const char* str = readString8Inplace(&len);
+    if (str) return String8(str, len);
+    ALOGE("Reading a NULL string not supported here.");
+    return String8();
 }
 
 status_t Parcel::readString8(String8* pArg) const
 {
-    int32_t size;
-    status_t status = readInt32(&size);
-    if (status != OK) {
-        return status;
-    }
-    // watch for potential int overflow from size+1
-    if (size < 0 || size >= INT32_MAX) {
-        return BAD_VALUE;
-    }
-    // |writeString8| writes nothing for empty string.
-    if (size == 0) {
+    size_t len;
+    const char* str = readString8Inplace(&len);
+    if (str) {
+        pArg->setTo(str, len);
+        return 0;
+    } else {
         *pArg = String8();
-        return OK;
+        return UNEXPECTED_NULL;
     }
-    const char* str = (const char*)readInplace(size + 1);
-    if (str == nullptr) {
-        return BAD_VALUE;
+}
+
+const char* Parcel::readString8Inplace(size_t* outLen) const
+{
+    int32_t size = readInt32();
+    // watch for potential int overflow from size+1
+    if (size >= 0 && size < INT32_MAX) {
+        *outLen = size;
+        const char* str = (const char*)readInplace(size+1);
+        if (str != nullptr) {
+            return str;
+        }
     }
-    pArg->setTo(str, size);
-    return OK;
+    *outLen = 0;
+    return nullptr;
 }
 
 String16 Parcel::readString16() const
diff --git a/libs/binder/include/binder/Parcel.h b/libs/binder/include/binder/Parcel.h
index 4b1a758..c1f64fb 100644
--- a/libs/binder/include/binder/Parcel.h
+++ b/libs/binder/include/binder/Parcel.h
@@ -119,6 +119,7 @@
     status_t            writeDouble(double val);
     status_t            writeCString(const char* str);
     status_t            writeString8(const String8& str);
+    status_t            writeString8(const char* str, size_t len);
     status_t            writeString16(const String16& str);
     status_t            writeString16(const std::unique_ptr<String16>& str);
     status_t            writeString16(const char16_t* str, size_t len);
@@ -283,6 +284,7 @@
     const char*         readCString() const;
     String8             readString8() const;
     status_t            readString8(String8* pArg) const;
+    const char*         readString8Inplace(size_t* outLen) const;
     String16            readString16() const;
     status_t            readString16(String16* pArg) const;
     status_t            readString16(std::unique_ptr<String16>* pArg) const;
diff --git a/libs/binder/ndk/test/Android.bp b/libs/binder/ndk/test/Android.bp
index cb4b20f..5f5265c 100644
--- a/libs/binder/ndk/test/Android.bp
+++ b/libs/binder/ndk/test/Android.bp
@@ -92,6 +92,7 @@
 
 aidl_interface {
     name: "IBinderVendorDoubleLoadTest",
+    unstable: true,
     vendor: true,
     srcs: [
         "IBinderVendorDoubleLoadTest.aidl",
@@ -100,6 +101,7 @@
 
 aidl_interface {
     name: "IBinderNdkUnitTest",
+    unstable: true,
     srcs: [
         "IBinderNdkUnitTest.aidl",
         "IEmpty.aidl",
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index c7b7551..69fdd7c 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -137,6 +137,7 @@
 
 aidl_interface {
     name: "binderStabilityTestIface",
+    unstable: true,
     srcs: [
         "IBinderStabilityTest.aidl",
     ],
diff --git a/libs/binderthreadstate/Android.bp b/libs/binderthreadstate/Android.bp
index c186110..5eb509c 100644
--- a/libs/binderthreadstate/Android.bp
+++ b/libs/binderthreadstate/Android.bp
@@ -39,6 +39,7 @@
 
 aidl_interface {
     name: "binderthreadstateutilstest.aidl",
+    unstable: true,
     srcs: ["IAidlStuff.aidl"],
 }
 
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index a8384ac..b0d9521 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -189,13 +189,13 @@
     mPendingReleaseItem.item = std::move(mSubmitted.front());
     mSubmitted.pop();
 
-    processNextBufferLocked();
+    processNextBufferLocked(false);
 
     mCallbackCV.notify_all();
     decStrong((void*)transactionCallbackThunk);
 }
 
-void BLASTBufferQueue::processNextBufferLocked() {
+void BLASTBufferQueue::processNextBufferLocked(bool useNextTransaction) {
     ATRACE_CALL();
     if (mNumFrameAvailable == 0 || mNumAcquired == MAX_ACQUIRED_BUFFERS + 1) {
         return;
@@ -209,7 +209,7 @@
     SurfaceComposerClient::Transaction localTransaction;
     bool applyTransaction = true;
     SurfaceComposerClient::Transaction* t = &localTransaction;
-    if (mNextTransaction != nullptr && mUseNextTransaction) {
+    if (mNextTransaction != nullptr && useNextTransaction) {
         t = mNextTransaction;
         mNextTransaction = nullptr;
         applyTransaction = false;
@@ -274,16 +274,14 @@
         while (mNumFrameAvailable > 0 || mNumAcquired == MAX_ACQUIRED_BUFFERS + 1) {
             mCallbackCV.wait(_lock);
         }
-        mUseNextTransaction = true;
     }
     // add to shadow queue
     mNumFrameAvailable++;
-    processNextBufferLocked();
+    processNextBufferLocked(true);
 }
 
 void BLASTBufferQueue::setNextTransaction(SurfaceComposerClient::Transaction* t) {
     std::lock_guard _lock{mMutex};
-    mUseNextTransaction = false;
     mNextTransaction = t;
 }
 
diff --git a/libs/gui/BufferHubProducer.cpp b/libs/gui/BufferHubProducer.cpp
index 4be014f..489f3c3 100644
--- a/libs/gui/BufferHubProducer.cpp
+++ b/libs/gui/BufferHubProducer.cpp
@@ -19,7 +19,6 @@
 #include <inttypes.h>
 #include <log/log.h>
 #include <system/window.h>
-#include <ui/BufferHubBuffer.h>
 
 namespace android {
 
diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 3f4c5da..a7cf39a 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -655,8 +655,9 @@
         }
 
         listener = mCore->mConsumerListener;
-        if (listener != nullptr) {
-            listener->onFrameDetached(mSlots[slot].mGraphicBuffer->getId());
+        auto gb = mSlots[slot].mGraphicBuffer;
+        if (listener != nullptr && gb != nullptr) {
+            listener->onFrameDetached(gb->getId());
         }
         mSlots[slot].mBufferState.detachProducer();
         mCore->mActiveBuffers.erase(slot);
@@ -1120,8 +1121,9 @@
         mCore->mFreeBuffers.push_back(slot);
     }
 
-    if (mCore->mConsumerListener != nullptr) {
-        mCore->mConsumerListener->onFrameCancelled(mSlots[slot].mGraphicBuffer->getId());
+    auto gb = mSlots[slot].mGraphicBuffer;
+    if (mCore->mConsumerListener != nullptr && gb != nullptr) {
+        mCore->mConsumerListener->onFrameCancelled(gb->getId());
     }
     mSlots[slot].mFence = fence;
     mCore->mDequeueCondition.notify_all();
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index bd4d62c..6fd53cf 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -795,8 +795,7 @@
     }
 
     virtual status_t setDisplayContentSamplingEnabled(const sp<IBinder>& display, bool enable,
-                                                      uint8_t componentMask,
-                                                      uint64_t maxFrames) const {
+                                                      uint8_t componentMask, uint64_t maxFrames) {
         Parcel data, reply;
         data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
         data.writeStrongBinder(display);
@@ -1038,7 +1037,7 @@
         return NO_ERROR;
     }
 
-    virtual status_t setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) const {
+    virtual status_t setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) {
         Parcel data, reply;
         status_t error = data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
         if (error != NO_ERROR) {
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 605c2e8..d9cbeb7 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -241,8 +241,31 @@
 
 // ---------------------------------------------------------------------------
 
-void bufferCacheCallback(void* /*context*/, uint64_t graphicBufferId);
+void removeDeadBufferCallback(void* /*context*/, uint64_t graphicBufferId);
 
+/**
+ * We use the BufferCache to reduce the overhead of exchanging GraphicBuffers with
+ * the server. If we were to simply parcel the GraphicBuffer we would pay two overheads
+ *     1. Cost of sending the FD
+ *     2. Cost of importing the GraphicBuffer with the mapper in the receiving process.
+ * To ease this cost we implement the following scheme of caching buffers to integers,
+ * or said-otherwise, naming them with integers. This is the scheme known as slots in
+ * the legacy BufferQueue system.
+ *     1. When sending Buffers to SurfaceFlinger we look up the Buffer in the cache.
+ *     2. If there is a cache-hit we remove the Buffer from the Transaction and instead
+ *        send the cached integer.
+ *     3. If there is a cache miss, we cache the new buffer and send the integer
+ *        along with the Buffer, SurfaceFlinger on it's side creates a new cache
+ *        entry, and we use the integer for further communication.
+ * A few details about lifetime:
+ *     1. The cache evicts by LRU. The server side cache is keyed by BufferCache::getToken
+ *        which is per process Unique. The server side cache is larger than the client side
+ *        cache so that the server will never evict entries before the client.
+ *     2. When the client evicts an entry it notifies the server via an uncacheBuffer
+ *        transaction.
+ *     3. The client only references the Buffers by ID, and uses buffer->addDeathCallback
+ *        to auto-evict destroyed buffers.
+ */
 class BufferCache : public Singleton<BufferCache> {
 public:
     BufferCache() : token(new BBinder()) {}
@@ -270,7 +293,7 @@
             evictLeastRecentlyUsedBuffer();
         }
 
-        buffer->addDeathCallback(bufferCacheCallback, nullptr);
+        buffer->addDeathCallback(removeDeadBufferCallback, nullptr);
 
         mBuffers[buffer->getId()] = getCounter();
         return buffer->getId();
@@ -318,7 +341,7 @@
 
 ANDROID_SINGLETON_STATIC_INSTANCE(BufferCache);
 
-void bufferCacheCallback(void* /*context*/, uint64_t graphicBufferId) {
+void removeDeadBufferCallback(void* /*context*/, uint64_t graphicBufferId) {
     // GraphicBuffer id's are used as the cache ids.
     BufferCache::getInstance().uncache(graphicBufferId);
 }
@@ -576,9 +599,11 @@
         uint64_t cacheId = 0;
         status_t ret = BufferCache::getInstance().getCacheId(s->buffer, &cacheId);
         if (ret == NO_ERROR) {
+            // Cache-hit. Strip the buffer and send only the id.
             s->what &= ~static_cast<uint64_t>(layer_state_t::eBufferChanged);
             s->buffer = nullptr;
         } else {
+            // Cache-miss. Include the buffer and send the new cacheId.
             cacheId = BufferCache::getInstance().cache(s->buffer);
         }
         s->what |= layer_state_t::eCachedBufferChanged;
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 64c21e0..b902615 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -90,7 +90,7 @@
     BLASTBufferQueue& operator = (const BLASTBufferQueue& rhs);
     BLASTBufferQueue(const BLASTBufferQueue& rhs);
 
-    void processNextBufferLocked() REQUIRES(mMutex);
+    void processNextBufferLocked(bool useNextTransaction) REQUIRES(mMutex);
     Rect computeCrop(const BufferItem& item);
 
     sp<SurfaceControl> mSurfaceControl;
@@ -123,8 +123,6 @@
     sp<BLASTBufferItemConsumer> mBufferItemConsumer;
 
     SurfaceComposerClient::Transaction* mNextTransaction GUARDED_BY(mMutex);
-
-    bool mUseNextTransaction = false;
 };
 
 } // namespace android
diff --git a/libs/gui/include/gui/DisplayEventReceiver.h b/libs/gui/include/gui/DisplayEventReceiver.h
index 109e28b..d9a0253 100644
--- a/libs/gui/include/gui/DisplayEventReceiver.h
+++ b/libs/gui/include/gui/DisplayEventReceiver.h
@@ -65,6 +65,7 @@
 
         struct VSync {
             uint32_t count;
+            nsecs_t expectedVSyncTimestamp;
         };
 
         struct Hotplug {
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index 3cef256..b4a3fbe 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -383,7 +383,7 @@
      */
     virtual status_t setDisplayContentSamplingEnabled(const sp<IBinder>& display, bool enable,
                                                       uint8_t componentMask,
-                                                      uint64_t maxFrames) const = 0;
+                                                      uint64_t maxFrames) = 0;
 
     /* Returns statistics on the color profile of the last frame displayed for a given display
      *
@@ -468,8 +468,7 @@
      *      BAD_VALUE         if the brightness is invalid, or
      *      INVALID_OPERATION if brightness operations are not supported.
      */
-    virtual status_t setDisplayBrightness(const sp<IBinder>& displayToken,
-                                          float brightness) const = 0;
+    virtual status_t setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) = 0;
 
     /*
      * Sends a power hint to the composer. This function is asynchronous.
diff --git a/libs/gui/tests/BLASTBufferQueue_test.cpp b/libs/gui/tests/BLASTBufferQueue_test.cpp
index a87ccd6..d929a59 100644
--- a/libs/gui/tests/BLASTBufferQueue_test.cpp
+++ b/libs/gui/tests/BLASTBufferQueue_test.cpp
@@ -722,5 +722,8 @@
     ASSERT_EQ(2, events->frameNumber);
     ASSERT_EQ(requestedPresentTimeB, events->requestedPresentTime);
     ASSERT_GE(events->postedTime, postedTimeB);
+
+    // wait for any callbacks that have not been received
+    adapter.waitForCallbacks();
 }
 } // namespace android
diff --git a/libs/gui/tests/RegionSampling_test.cpp b/libs/gui/tests/RegionSampling_test.cpp
index dbd4ef9..6746b0a 100644
--- a/libs/gui/tests/RegionSampling_test.cpp
+++ b/libs/gui/tests/RegionSampling_test.cpp
@@ -240,6 +240,19 @@
     float const luma_gray = 0.50;
 };
 
+TEST_F(RegionSamplingTest, invalidLayerHandle_doesNotCrash) {
+    sp<ISurfaceComposer> composer = ComposerService::getComposerService();
+    sp<Listener> listener = new Listener();
+    const Rect sampleArea{100, 100, 200, 200};
+    // Passing in composer service as the layer handle should not crash, we'll
+    // treat it as a layer that no longer exists and silently allow sampling to
+    // occur.
+    status_t status = composer->addRegionSamplingListener(sampleArea,
+                                                          IInterface::asBinder(composer), listener);
+    ASSERT_EQ(NO_ERROR, status);
+    composer->removeRegionSamplingListener(listener);
+}
+
 TEST_F(RegionSamplingTest, DISABLED_CollectsLuma) {
     fill_render(rgba_green);
 
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index ef1fd02..2de6b69 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -804,7 +804,7 @@
     }
     status_t setDisplayContentSamplingEnabled(const sp<IBinder>& /*display*/, bool /*enable*/,
                                               uint8_t /*componentMask*/,
-                                              uint64_t /*maxFrames*/) const override {
+                                              uint64_t /*maxFrames*/) override {
         return NO_ERROR;
     }
     status_t getDisplayedContentSample(const sp<IBinder>& /*display*/, uint64_t /*maxFrames*/,
@@ -822,7 +822,7 @@
         return NO_ERROR;
     }
     status_t setDisplayBrightness(const sp<IBinder>& /*displayToken*/,
-                                  float /*brightness*/) const override {
+                                  float /*brightness*/) override {
         return NO_ERROR;
     }
 
diff --git a/libs/input/InputWindow.cpp b/libs/input/InputWindow.cpp
index 03ca459..6e4c97d 100644
--- a/libs/input/InputWindow.cpp
+++ b/libs/input/InputWindow.cpp
@@ -65,7 +65,7 @@
 }
 
 status_t InputWindowInfo::write(Parcel& output) const {
-    if (token == nullptr) {
+    if (name.empty()) {
         output.writeInt32(0);
         return OK;
     }
@@ -110,12 +110,7 @@
         return ret;
     }
 
-    sp<IBinder> token = from.readStrongBinder();
-    if (token == nullptr) {
-        return ret;
-    }
-
-    ret.token = token;
+    ret.token = from.readStrongBinder();
     ret.id = from.readInt32();
     ret.name = from.readString8().c_str();
     ret.layoutParamsFlags = from.readInt32();
diff --git a/libs/renderengine/gl/GLESRenderEngine.cpp b/libs/renderengine/gl/GLESRenderEngine.cpp
index 36a54a7..b0b4f6c 100644
--- a/libs/renderengine/gl/GLESRenderEngine.cpp
+++ b/libs/renderengine/gl/GLESRenderEngine.cpp
@@ -147,52 +147,6 @@
     return NAME_NOT_FOUND;
 }
 
-class EGLAttributeVector {
-    struct Attribute;
-    class Adder;
-    friend class Adder;
-    KeyedVector<Attribute, EGLint> mList;
-    struct Attribute {
-        Attribute() : v(0){};
-        explicit Attribute(EGLint v) : v(v) {}
-        EGLint v;
-        bool operator<(const Attribute& other) const {
-            // this places EGL_NONE at the end
-            EGLint lhs(v);
-            EGLint rhs(other.v);
-            if (lhs == EGL_NONE) lhs = 0x7FFFFFFF;
-            if (rhs == EGL_NONE) rhs = 0x7FFFFFFF;
-            return lhs < rhs;
-        }
-    };
-    class Adder {
-        friend class EGLAttributeVector;
-        EGLAttributeVector& v;
-        EGLint attribute;
-        Adder(EGLAttributeVector& v, EGLint attribute) : v(v), attribute(attribute) {}
-
-    public:
-        void operator=(EGLint value) {
-            if (attribute != EGL_NONE) {
-                v.mList.add(Attribute(attribute), value);
-            }
-        }
-        operator EGLint() const { return v.mList[attribute]; }
-    };
-
-public:
-    EGLAttributeVector() { mList.add(Attribute(EGL_NONE), EGL_NONE); }
-    void remove(EGLint attribute) {
-        if (attribute != EGL_NONE) {
-            mList.removeItem(Attribute(attribute));
-        }
-    }
-    Adder operator[](EGLint attribute) { return Adder(*this, attribute); }
-    EGLint operator[](EGLint attribute) const { return mList[attribute]; }
-    // cast-operator to (EGLint const*)
-    operator EGLint const*() const { return &mList.keyAt(0).v; }
-};
-
 static status_t selectEGLConfig(EGLDisplay display, EGLint format, EGLint renderableType,
                                 EGLConfig* config) {
     // select our EGLConfig. It must support EGL_RECORDABLE_ANDROID if
@@ -201,16 +155,33 @@
     EGLint wantedAttribute;
     EGLint wantedAttributeValue;
 
-    EGLAttributeVector attribs;
+    std::vector<EGLint> attribs;
     if (renderableType) {
-        attribs[EGL_RENDERABLE_TYPE] = renderableType;
-        attribs[EGL_RECORDABLE_ANDROID] = EGL_TRUE;
-        attribs[EGL_SURFACE_TYPE] = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
-        attribs[EGL_FRAMEBUFFER_TARGET_ANDROID] = EGL_TRUE;
-        attribs[EGL_RED_SIZE] = 8;
-        attribs[EGL_GREEN_SIZE] = 8;
-        attribs[EGL_BLUE_SIZE] = 8;
-        attribs[EGL_ALPHA_SIZE] = 8;
+        const ui::PixelFormat pixelFormat = static_cast<ui::PixelFormat>(format);
+        const bool is1010102 = pixelFormat == ui::PixelFormat::RGBA_1010102;
+
+        // Default to 8 bits per channel.
+        const EGLint tmpAttribs[] = {
+                EGL_RENDERABLE_TYPE,
+                renderableType,
+                EGL_RECORDABLE_ANDROID,
+                EGL_TRUE,
+                EGL_SURFACE_TYPE,
+                EGL_WINDOW_BIT | EGL_PBUFFER_BIT,
+                EGL_FRAMEBUFFER_TARGET_ANDROID,
+                EGL_TRUE,
+                EGL_RED_SIZE,
+                is1010102 ? 10 : 8,
+                EGL_GREEN_SIZE,
+                is1010102 ? 10 : 8,
+                EGL_BLUE_SIZE,
+                is1010102 ? 10 : 8,
+                EGL_ALPHA_SIZE,
+                is1010102 ? 2 : 8,
+                EGL_NONE,
+        };
+        std::copy(tmpAttribs, tmpAttribs + (sizeof(tmpAttribs) / sizeof(EGLint)),
+                  std::back_inserter(attribs));
         wantedAttribute = EGL_NONE;
         wantedAttributeValue = EGL_NONE;
     } else {
@@ -219,7 +190,8 @@
         wantedAttributeValue = format;
     }
 
-    err = selectConfigForAttribute(display, attribs, wantedAttribute, wantedAttributeValue, config);
+    err = selectConfigForAttribute(display, attribs.data(), wantedAttribute, wantedAttributeValue,
+                                   config);
     if (err == NO_ERROR) {
         EGLint caveat;
         if (eglGetConfigAttrib(display, *config, EGL_CONFIG_CAVEAT, &caveat))
@@ -897,13 +869,32 @@
     return glStatus == GL_FRAMEBUFFER_COMPLETE_OES ? NO_ERROR : BAD_VALUE;
 }
 
-void GLESRenderEngine::unbindFrameBuffer(Framebuffer* /* framebuffer */) {
+void GLESRenderEngine::unbindFrameBuffer(Framebuffer* /*framebuffer*/) {
     ATRACE_CALL();
 
     // back to main framebuffer
     glBindFramebuffer(GL_FRAMEBUFFER, 0);
 }
 
+bool GLESRenderEngine::cleanupPostRender() {
+    ATRACE_CALL();
+
+    if (mPriorResourcesCleaned ||
+        (mLastDrawFence != nullptr && mLastDrawFence->getStatus() != Fence::Status::Signaled)) {
+        // If we don't have a prior frame needing cleanup, then don't do anything.
+        return false;
+    }
+
+    // Bind the texture to dummy data so that backing image data can be freed.
+    GLFramebuffer* glFramebuffer = static_cast<GLFramebuffer*>(getFramebufferForDrawing());
+    glFramebuffer->allocateBuffers(1, 1, mPlaceholderDrawBuffer);
+    // Release the cached fence here, so that we don't churn reallocations when
+    // we could no-op repeated calls of this method instead.
+    mLastDrawFence = nullptr;
+    mPriorResourcesCleaned = true;
+    return true;
+}
+
 void GLESRenderEngine::checkErrors() const {
     checkErrors(nullptr);
 }
@@ -1189,7 +1180,13 @@
             // us bad parameters, or we messed up our shader generation).
             return INVALID_OPERATION;
         }
+        mLastDrawFence = nullptr;
+    } else {
+        // The caller takes ownership of drawFence, so we need to duplicate the
+        // fd here.
+        mLastDrawFence = new Fence(dup(drawFence->get()));
     }
+    mPriorResourcesCleaned = false;
 
     checkErrors();
     return NO_ERROR;
diff --git a/libs/renderengine/gl/GLESRenderEngine.h b/libs/renderengine/gl/GLESRenderEngine.h
index 32dbad1..42b8537 100644
--- a/libs/renderengine/gl/GLESRenderEngine.h
+++ b/libs/renderengine/gl/GLESRenderEngine.h
@@ -17,7 +17,6 @@
 #ifndef SF_GLESRENDERENGINE_H_
 #define SF_GLESRENDERENGINE_H_
 
-#include <stdint.h>
 #include <condition_variable>
 #include <deque>
 #include <mutex>
@@ -76,6 +75,7 @@
                         const std::vector<const LayerSettings*>& layers,
                         ANativeWindowBuffer* buffer, const bool useFramebufferCache,
                         base::unique_fd&& bufferFence, base::unique_fd* drawFence) override;
+    bool cleanupPostRender() override;
 
     EGLDisplay getEGLDisplay() const { return mEGLDisplay; }
     // Creates an output image for rendering to
@@ -231,6 +231,17 @@
     std::mutex mRenderingMutex;
 
     std::unique_ptr<Framebuffer> mDrawingBuffer;
+    // this is a 1x1 RGB buffer, but over-allocate in case a driver wants more
+    // memory or if it needs to satisfy alignment requirements. In this case:
+    // assume that each channel requires 4 bytes, and add 3 additional bytes to
+    // ensure that we align on a word. Allocating 16 bytes will provide a
+    // guarantee that we don't clobber memory.
+    uint32_t mPlaceholderDrawBuffer[4];
+    sp<Fence> mLastDrawFence;
+    // Store a separate boolean checking if prior resources were cleaned up, as
+    // devices that don't support native sync fences can't rely on a last draw
+    // fence that doesn't exist.
+    bool mPriorResourcesCleaned = true;
 
     // Blur effect processor, only instantiated when a layer requests it.
     BlurFilter* mBlurFilter = nullptr;
diff --git a/libs/renderengine/gl/GLFramebuffer.cpp b/libs/renderengine/gl/GLFramebuffer.cpp
index cb0d5cf..383486b 100644
--- a/libs/renderengine/gl/GLFramebuffer.cpp
+++ b/libs/renderengine/gl/GLFramebuffer.cpp
@@ -68,11 +68,11 @@
     return true;
 }
 
-void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height) {
+void GLFramebuffer::allocateBuffers(uint32_t width, uint32_t height, void* data) {
     ATRACE_CALL();
 
     glBindTexture(GL_TEXTURE_2D, mTextureName);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
diff --git a/libs/renderengine/gl/GLFramebuffer.h b/libs/renderengine/gl/GLFramebuffer.h
index b88da3b..6757695 100644
--- a/libs/renderengine/gl/GLFramebuffer.h
+++ b/libs/renderengine/gl/GLFramebuffer.h
@@ -39,7 +39,7 @@
 
     bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
                                const bool useFramebufferCache) override;
-    void allocateBuffers(uint32_t width, uint32_t height);
+    void allocateBuffers(uint32_t width, uint32_t height, void* data = nullptr);
     EGLImageKHR getEGLImage() const { return mEGLImage; }
     uint32_t getTextureName() const { return mTextureName; }
     uint32_t getFramebufferName() const { return mFramebufferName; }
diff --git a/libs/renderengine/gl/filters/BlurFilter.cpp b/libs/renderengine/gl/filters/BlurFilter.cpp
index 724877b..db55d17 100644
--- a/libs/renderengine/gl/filters/BlurFilter.cpp
+++ b/libs/renderengine/gl/filters/BlurFilter.cpp
@@ -261,15 +261,6 @@
     return shader;
 }
 
-void BlurFilter::blit(GLFramebuffer& read, GLFramebuffer& draw) const {
-    ATRACE_NAME("BlurFilter::blit");
-    read.bindAsReadBuffer();
-    draw.bindAsDrawBuffer();
-    glBlitFramebuffer(0, 0, read.getBufferWidth(), read.getBufferHeight(), 0, 0,
-                      draw.getBufferWidth(), draw.getBufferHeight(), GL_COLOR_BUFFER_BIT,
-                      GL_LINEAR);
-}
-
 } // namespace gl
 } // namespace renderengine
 } // namespace android
diff --git a/libs/renderengine/gl/filters/BlurFilter.h b/libs/renderengine/gl/filters/BlurFilter.h
index 7e0819f..9d3fc60 100644
--- a/libs/renderengine/gl/filters/BlurFilter.h
+++ b/libs/renderengine/gl/filters/BlurFilter.h
@@ -56,7 +56,6 @@
 private:
     uint32_t mRadius;
     void drawMesh(GLuint uv, GLuint position);
-    void blit(GLFramebuffer& read, GLFramebuffer& draw) const;
     string getVertexShader() const;
     string getFragmentShader() const;
     string getMixFragShader() const;
diff --git a/libs/renderengine/include/renderengine/RenderEngine.h b/libs/renderengine/include/renderengine/RenderEngine.h
index 46f3fc6..e06e128 100644
--- a/libs/renderengine/include/renderengine/RenderEngine.h
+++ b/libs/renderengine/include/renderengine/RenderEngine.h
@@ -111,6 +111,14 @@
     // Returns NO_ERROR when binds successfully, NO_MEMORY when there's no memory for allocation.
     virtual status_t bindFrameBuffer(Framebuffer* framebuffer) = 0;
     virtual void unbindFrameBuffer(Framebuffer* framebuffer) = 0;
+    // Clean-up method that should be called on the main thread after the
+    // drawFence returned by drawLayers fires. This method will free up
+    // resources used by the most recently drawn frame. If the frame is still
+    // being drawn, then this call is silently ignored.
+    //
+    // Returns true if resources were cleaned up, and false if we didn't need to
+    // do any work.
+    virtual bool cleanupPostRender() = 0;
 
     // queries
     virtual size_t getMaxTextureSize() const = 0;
diff --git a/libs/renderengine/include/renderengine/mock/RenderEngine.h b/libs/renderengine/include/renderengine/mock/RenderEngine.h
index 3358c69..df0f17a 100644
--- a/libs/renderengine/include/renderengine/mock/RenderEngine.h
+++ b/libs/renderengine/include/renderengine/mock/RenderEngine.h
@@ -22,6 +22,7 @@
 #include <renderengine/Mesh.h>
 #include <renderengine/RenderEngine.h>
 #include <renderengine/Texture.h>
+#include <ui/Fence.h>
 #include <ui/GraphicBuffer.h>
 #include <ui/Region.h>
 
@@ -55,6 +56,7 @@
     MOCK_CONST_METHOD0(isProtected, bool());
     MOCK_CONST_METHOD0(supportsProtectedContent, bool());
     MOCK_METHOD1(useProtectedContext, bool(bool));
+    MOCK_METHOD0(cleanupPostRender, bool());
     MOCK_METHOD6(drawLayers,
                  status_t(const DisplaySettings&, const std::vector<const LayerSettings*>&,
                           ANativeWindowBuffer*, const bool, base::unique_fd&&, base::unique_fd*));
diff --git a/libs/renderengine/tests/RenderEngineTest.cpp b/libs/renderengine/tests/RenderEngineTest.cpp
index f5bf014..16a8a0d 100644
--- a/libs/renderengine/tests/RenderEngineTest.cpp
+++ b/libs/renderengine/tests/RenderEngineTest.cpp
@@ -1241,12 +1241,12 @@
     EXPECT_EQ(NO_ERROR, barrier->result);
 }
 
-TEST_F(RenderEngineTest, drawLayers_bindExternalBufferWithNullBuffer) {
+TEST_F(RenderEngineTest, bindExternalBuffer_withNullBuffer) {
     status_t result = sRE->bindExternalTextureBuffer(0, nullptr, nullptr);
     ASSERT_EQ(BAD_VALUE, result);
 }
 
-TEST_F(RenderEngineTest, drawLayers_bindExternalBufferCachesImages) {
+TEST_F(RenderEngineTest, bindExternalBuffer_cachesImages) {
     sp<GraphicBuffer> buf = allocateSourceBuffer(1, 1);
     uint32_t texName;
     sRE->genTextures(1, &texName);
@@ -1266,7 +1266,7 @@
     EXPECT_FALSE(sRE->isImageCachedForTesting(bufferId));
 }
 
-TEST_F(RenderEngineTest, drawLayers_cacheExternalBufferWithNullBuffer) {
+TEST_F(RenderEngineTest, cacheExternalBuffer_withNullBuffer) {
     std::shared_ptr<renderengine::gl::ImageManager::Barrier> barrier =
             sRE->cacheExternalTextureBufferForTesting(nullptr);
     std::lock_guard<std::mutex> lock(barrier->mutex);
@@ -1278,7 +1278,7 @@
     EXPECT_EQ(BAD_VALUE, barrier->result);
 }
 
-TEST_F(RenderEngineTest, drawLayers_cacheExternalBufferCachesImages) {
+TEST_F(RenderEngineTest, cacheExternalBuffer_cachesImages) {
     sp<GraphicBuffer> buf = allocateSourceBuffer(1, 1);
     uint64_t bufferId = buf->getId();
     std::shared_ptr<renderengine::gl::ImageManager::Barrier> barrier =
@@ -1401,6 +1401,35 @@
                       backgroundColor.a);
 }
 
+TEST_F(RenderEngineTest, cleanupPostRender_cleansUpOnce) {
+    renderengine::DisplaySettings settings;
+    settings.physicalDisplay = fullscreenRect();
+    settings.clip = fullscreenRect();
+
+    std::vector<const renderengine::LayerSettings*> layers;
+    renderengine::LayerSettings layer;
+    layer.geometry.boundaries = fullscreenRect().toFloatRect();
+    BufferSourceVariant<ForceOpaqueBufferVariant>::fillColor(layer, 1.0f, 0.0f, 0.0f, this);
+    layer.alpha = 1.0;
+    layers.push_back(&layer);
+
+    base::unique_fd fenceOne;
+    sRE->drawLayers(settings, layers, mBuffer->getNativeBuffer(), true, base::unique_fd(),
+                    &fenceOne);
+    base::unique_fd fenceTwo;
+    sRE->drawLayers(settings, layers, mBuffer->getNativeBuffer(), true, std::move(fenceOne),
+                    &fenceTwo);
+
+    const int fd = fenceTwo.get();
+    if (fd >= 0) {
+        sync_wait(fd, -1);
+    }
+
+    // Only cleanup the first time.
+    EXPECT_TRUE(sRE->cleanupPostRender());
+    EXPECT_FALSE(sRE->cleanupPostRender());
+}
+
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index ba6255d..458ee67 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -36,9 +36,6 @@
 
     srcs: [
         "ColorSpace.cpp",
-        "BufferHubBuffer.cpp",
-        "BufferHubEventFd.cpp",
-        "BufferHubMetadata.cpp",
         "DebugUtils.cpp",
         "Fence.cpp",
         "FenceTime.cpp",
@@ -72,7 +69,6 @@
     //defaults: ["libui-validate-regions-defaults"],
 
     shared_libs: [
-        "android.frameworks.bufferhub@1.0",
         "android.hardware.graphics.allocator@2.0",
         "android.hardware.graphics.allocator@3.0",
         "android.hardware.graphics.allocator@4.0",
@@ -109,30 +105,20 @@
         vendor: {
             cflags: ["-DLIBUI_IN_VNDK"],
             exclude_srcs: [
-                "BufferHubBuffer.cpp",
-                "BufferHubEventFd.cpp",
-                "BufferHubMetadata.cpp",
             ],
             exclude_header_libs: [
-                "libbufferhub_headers",
-                "libdvr_headers",
             ],
             exclude_shared_libs: [
-                "android.frameworks.bufferhub@1.0",
-                "libpdx_default_transport",
             ],
         },
     },
 
     header_libs: [
         "libbase_headers",
-        "libbufferhub_headers",
-        "libdvr_headers",
         "libnativebase_headers",
         "libnativewindow_headers",
         "libhardware_headers",
         "libui_headers",
-        "libpdx_headers",
     ],
 
     export_static_lib_headers: [
diff --git a/libs/ui/BufferHubBuffer.cpp b/libs/ui/BufferHubBuffer.cpp
deleted file mode 100644
index 1dfc1e9..0000000
--- a/libs/ui/BufferHubBuffer.cpp
+++ /dev/null
@@ -1,358 +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.
- */
-
-#define LOG_TAG "BufferHubBuffer"
-#include <poll.h>
-
-#include <android-base/unique_fd.h>
-#include <android/frameworks/bufferhub/1.0/IBufferHub.h>
-#include <log/log.h>
-#include <ui/BufferHubBuffer.h>
-#include <ui/BufferHubDefs.h>
-#include <utils/Trace.h>
-
-using ::android::base::unique_fd;
-using ::android::BufferHubDefs::isAnyClientAcquired;
-using ::android::BufferHubDefs::isAnyClientGained;
-using ::android::BufferHubDefs::isClientAcquired;
-using ::android::BufferHubDefs::isClientGained;
-using ::android::BufferHubDefs::isClientPosted;
-using ::android::BufferHubDefs::isClientReleased;
-using ::android::frameworks::bufferhub::V1_0::BufferHubStatus;
-using ::android::frameworks::bufferhub::V1_0::BufferTraits;
-using ::android::frameworks::bufferhub::V1_0::IBufferClient;
-using ::android::frameworks::bufferhub::V1_0::IBufferHub;
-using ::android::hardware::hidl_handle;
-using ::android::hardware::graphics::common::V1_2::HardwareBufferDescription;
-
-namespace android {
-
-std::unique_ptr<BufferHubBuffer> BufferHubBuffer::create(uint32_t width, uint32_t height,
-                                                         uint32_t layerCount, uint32_t format,
-                                                         uint64_t usage, size_t userMetadataSize) {
-    auto buffer = std::unique_ptr<BufferHubBuffer>(
-            new BufferHubBuffer(width, height, layerCount, format, usage, userMetadataSize));
-    return buffer->isValid() ? std::move(buffer) : nullptr;
-}
-
-std::unique_ptr<BufferHubBuffer> BufferHubBuffer::import(const sp<NativeHandle>& token) {
-    if (token == nullptr || token.get() == nullptr) {
-        ALOGE("%s: token cannot be nullptr!", __FUNCTION__);
-        return nullptr;
-    }
-
-    auto buffer = std::unique_ptr<BufferHubBuffer>(new BufferHubBuffer(token));
-    return buffer->isValid() ? std::move(buffer) : nullptr;
-}
-
-BufferHubBuffer::BufferHubBuffer(uint32_t width, uint32_t height, uint32_t layerCount,
-                                 uint32_t format, uint64_t usage, size_t userMetadataSize) {
-    ATRACE_CALL();
-    ALOGD("%s: width=%u height=%u layerCount=%u, format=%u "
-          "usage=%" PRIx64 " mUserMetadataSize=%zu",
-          __FUNCTION__, width, height, layerCount, format, usage, userMetadataSize);
-
-    sp<IBufferHub> bufferhub = IBufferHub::getService();
-    if (bufferhub.get() == nullptr) {
-        ALOGE("%s: BufferHub service not found!", __FUNCTION__);
-        return;
-    }
-
-    AHardwareBuffer_Desc aDesc = {width, height,         layerCount,   format,
-                                  usage, /*stride=*/0UL, /*rfu0=*/0UL, /*rfu1=*/0ULL};
-    HardwareBufferDescription desc;
-    memcpy(&desc, &aDesc, sizeof(HardwareBufferDescription));
-
-    BufferHubStatus ret;
-    sp<IBufferClient> client;
-    BufferTraits bufferTraits;
-    IBufferHub::allocateBuffer_cb allocCb = [&](const auto& status, const auto& outClient,
-                                                const auto& outTraits) {
-        ret = status;
-        client = std::move(outClient);
-        bufferTraits = std::move(outTraits);
-    };
-
-    if (!bufferhub->allocateBuffer(desc, static_cast<uint32_t>(userMetadataSize), allocCb).isOk()) {
-        ALOGE("%s: allocateBuffer transaction failed!", __FUNCTION__);
-        return;
-    } else if (ret != BufferHubStatus::NO_ERROR) {
-        ALOGE("%s: allocateBuffer failed with error %u.", __FUNCTION__, ret);
-        return;
-    } else if (client == nullptr) {
-        ALOGE("%s: allocateBuffer got null BufferClient.", __FUNCTION__);
-        return;
-    }
-
-    const int importRet = initWithBufferTraits(bufferTraits);
-    if (importRet < 0) {
-        ALOGE("%s: Failed to import buffer: %s", __FUNCTION__, strerror(-importRet));
-        client->close();
-    }
-    mBufferClient = std::move(client);
-}
-
-BufferHubBuffer::BufferHubBuffer(const sp<NativeHandle>& token) {
-    sp<IBufferHub> bufferhub = IBufferHub::getService();
-    if (bufferhub.get() == nullptr) {
-        ALOGE("%s: BufferHub service not found!", __FUNCTION__);
-        return;
-    }
-
-    BufferHubStatus ret;
-    sp<IBufferClient> client;
-    BufferTraits bufferTraits;
-    IBufferHub::importBuffer_cb importCb = [&](const auto& status, const auto& outClient,
-                                               const auto& outTraits) {
-        ret = status;
-        client = std::move(outClient);
-        bufferTraits = std::move(outTraits);
-    };
-
-    // hidl_handle(native_handle_t*) simply creates a raw pointer reference withouth ownership
-    // transfer.
-    if (!bufferhub->importBuffer(hidl_handle(token.get()->handle()), importCb).isOk()) {
-        ALOGE("%s: importBuffer transaction failed!", __FUNCTION__);
-        return;
-    } else if (ret != BufferHubStatus::NO_ERROR) {
-        ALOGE("%s: importBuffer failed with error %u.", __FUNCTION__, ret);
-        return;
-    } else if (client == nullptr) {
-        ALOGE("%s: importBuffer got null BufferClient.", __FUNCTION__);
-        return;
-    }
-
-    const int importRet = initWithBufferTraits(bufferTraits);
-    if (importRet < 0) {
-        ALOGE("%s: Failed to import buffer: %s", __FUNCTION__, strerror(-importRet));
-        client->close();
-    }
-    mBufferClient = std::move(client);
-}
-
-BufferHubBuffer::~BufferHubBuffer() {
-    // Close buffer client to avoid possible race condition: user could first duplicate and hold
-    // token with the original buffer gone, and then try to import the token. The close function
-    // will explicitly invalidate the token to avoid this.
-    if (mBufferClient != nullptr) {
-        if (!mBufferClient->close().isOk()) {
-            ALOGE("%s: close BufferClient transaction failed!", __FUNCTION__);
-        }
-    }
-}
-
-int BufferHubBuffer::initWithBufferTraits(const BufferTraits& bufferTraits) {
-    ATRACE_CALL();
-
-    if (bufferTraits.bufferInfo.getNativeHandle() == nullptr) {
-        ALOGE("%s: missing buffer info handle.", __FUNCTION__);
-        return -EINVAL;
-    }
-
-    if (bufferTraits.bufferHandle.getNativeHandle() == nullptr) {
-        ALOGE("%s: missing gralloc handle.", __FUNCTION__);
-        return -EINVAL;
-    }
-
-    // Import fds. Dup fds because hidl_handle owns the fds.
-    unique_fd ashmemFd(fcntl(bufferTraits.bufferInfo->data[0], F_DUPFD_CLOEXEC, 0));
-    mMetadata = BufferHubMetadata::import(std::move(ashmemFd));
-    if (!mMetadata.isValid()) {
-        ALOGE("%s: Received an invalid metadata.", __FUNCTION__);
-        return -EINVAL;
-    }
-
-    mEventFd = BufferHubEventFd(fcntl(bufferTraits.bufferInfo->data[1], F_DUPFD_CLOEXEC, 0));
-    if (!mEventFd.isValid()) {
-        ALOGE("%s: Received ad invalid event fd.", __FUNCTION__);
-        return -EINVAL;
-    }
-
-    int bufferId = bufferTraits.bufferInfo->data[2];
-    if (bufferId < 0) {
-        ALOGE("%s: Received an invalid (negative) id.", __FUNCTION__);
-        return -EINVAL;
-    }
-
-    uint32_t clientBitMask;
-    memcpy(&clientBitMask, &bufferTraits.bufferInfo->data[3], sizeof(clientBitMask));
-    if (clientBitMask == 0U) {
-        ALOGE("%s: Received an invalid client state mask.", __FUNCTION__);
-        return -EINVAL;
-    }
-
-    uint32_t userMetadataSize;
-    memcpy(&userMetadataSize, &bufferTraits.bufferInfo->data[4], sizeof(userMetadataSize));
-    if (mMetadata.userMetadataSize() != userMetadataSize) {
-        ALOGE("%s: user metadata size not match: expected %u, actual %zu.", __FUNCTION__,
-              userMetadataSize, mMetadata.userMetadataSize());
-        return -EINVAL;
-    }
-
-    size_t metadataSize = static_cast<size_t>(mMetadata.metadataSize());
-    if (metadataSize < BufferHubDefs::kMetadataHeaderSize) {
-        ALOGE("%s: metadata too small: %zu", __FUNCTION__, metadataSize);
-        return -EINVAL;
-    }
-
-    // Populate shortcuts to the atomics in metadata.
-    auto metadataHeader = mMetadata.metadataHeader();
-    mBufferState = &metadataHeader->bufferState;
-    mFenceState = &metadataHeader->fenceState;
-    mActiveClientsBitMask = &metadataHeader->activeClientsBitMask;
-    // The C++ standard recommends (but does not require) that lock-free atomic operations are
-    // also address-free, that is, suitable for communication between processes using shared
-    // memory.
-    LOG_ALWAYS_FATAL_IF(!std::atomic_is_lock_free(mBufferState) ||
-                                !std::atomic_is_lock_free(mFenceState) ||
-                                !std::atomic_is_lock_free(mActiveClientsBitMask),
-                        "Atomic variables in ashmen are not lock free.");
-
-    // Import the buffer: We only need to hold on the native_handle_t here so that
-    // GraphicBuffer instance can be created in future.
-    mBufferHandle = std::move(bufferTraits.bufferHandle);
-    memcpy(&mBufferDesc, &bufferTraits.bufferDesc, sizeof(AHardwareBuffer_Desc));
-
-    mId = bufferId;
-    mClientStateMask = clientBitMask;
-
-    // TODO(b/112012161) Set up shared fences.
-    ALOGD("%s: id=%d, mBufferState=%" PRIx32 ".", __FUNCTION__, mId,
-          mBufferState->load(std::memory_order_acquire));
-    return 0;
-}
-
-int BufferHubBuffer::gain() {
-    uint32_t currentBufferState = mBufferState->load(std::memory_order_acquire);
-    if (isClientGained(currentBufferState, mClientStateMask)) {
-        ALOGV("%s: Buffer is already gained by this client %" PRIx32 ".", __FUNCTION__,
-              mClientStateMask);
-        return 0;
-    }
-    do {
-        if (isAnyClientGained(currentBufferState & (~mClientStateMask)) ||
-            isAnyClientAcquired(currentBufferState)) {
-            ALOGE("%s: Buffer is in use, id=%d mClientStateMask=%" PRIx32 " state=%" PRIx32 ".",
-                  __FUNCTION__, mId, mClientStateMask, currentBufferState);
-            return -EBUSY;
-        }
-        // Change the buffer state to gained state, whose value happens to be the same as
-        // mClientStateMask.
-    } while (!mBufferState->compare_exchange_weak(currentBufferState, mClientStateMask,
-                                                  std::memory_order_acq_rel,
-                                                  std::memory_order_acquire));
-    // TODO(b/119837586): Update fence state and return GPU fence.
-    return 0;
-}
-
-int BufferHubBuffer::post() {
-    uint32_t currentBufferState = mBufferState->load(std::memory_order_acquire);
-    uint32_t updatedBufferState = (~mClientStateMask) & BufferHubDefs::kHighBitsMask;
-    do {
-        if (!isClientGained(currentBufferState, mClientStateMask)) {
-            ALOGE("%s: Cannot post a buffer that is not gained by this client. buffer_id=%d "
-                  "mClientStateMask=%" PRIx32 " state=%" PRIx32 ".",
-                  __FUNCTION__, mId, mClientStateMask, currentBufferState);
-            return -EBUSY;
-        }
-        // Set the producer client buffer state to released, other clients' buffer state to posted.
-        // Post to all existing and non-existing clients.
-    } while (!mBufferState->compare_exchange_weak(currentBufferState, updatedBufferState,
-                                                  std::memory_order_acq_rel,
-                                                  std::memory_order_acquire));
-    // TODO(b/119837586): Update fence state and return GPU fence if needed.
-    return 0;
-}
-
-int BufferHubBuffer::acquire() {
-    uint32_t currentBufferState = mBufferState->load(std::memory_order_acquire);
-    if (isClientAcquired(currentBufferState, mClientStateMask)) {
-        ALOGV("%s: Buffer is already acquired by this client %" PRIx32 ".", __FUNCTION__,
-              mClientStateMask);
-        return 0;
-    }
-    uint32_t updatedBufferState = 0U;
-    do {
-        if (!isClientPosted(currentBufferState, mClientStateMask)) {
-            ALOGE("%s: Cannot acquire a buffer that is not in posted state. buffer_id=%d "
-                  "mClientStateMask=%" PRIx32 " state=%" PRIx32 ".",
-                  __FUNCTION__, mId, mClientStateMask, currentBufferState);
-            return -EBUSY;
-        }
-        // Change the buffer state for this consumer from posted to acquired.
-        updatedBufferState = currentBufferState ^ mClientStateMask;
-    } while (!mBufferState->compare_exchange_weak(currentBufferState, updatedBufferState,
-                                                  std::memory_order_acq_rel,
-                                                  std::memory_order_acquire));
-    // TODO(b/119837586): Update fence state and return GPU fence.
-    return 0;
-}
-
-int BufferHubBuffer::release() {
-    uint32_t currentBufferState = mBufferState->load(std::memory_order_acquire);
-    if (isClientReleased(currentBufferState, mClientStateMask)) {
-        ALOGV("%s: Buffer is already released by this client %" PRIx32 ".", __FUNCTION__,
-              mClientStateMask);
-        return 0;
-    }
-    uint32_t updatedBufferState = 0U;
-    do {
-        updatedBufferState = currentBufferState & (~mClientStateMask);
-    } while (!mBufferState->compare_exchange_weak(currentBufferState, updatedBufferState,
-                                                  std::memory_order_acq_rel,
-                                                  std::memory_order_acquire));
-    // TODO(b/119837586): Update fence state and return GPU fence if needed.
-    return 0;
-}
-
-bool BufferHubBuffer::isReleased() const {
-    return (mBufferState->load(std::memory_order_acquire) &
-            mActiveClientsBitMask->load(std::memory_order_acquire)) == 0;
-}
-
-bool BufferHubBuffer::isValid() const {
-    return mBufferHandle.getNativeHandle() != nullptr && mId >= 0 && mClientStateMask != 0U &&
-            mEventFd.get() >= 0 && mMetadata.isValid() && mBufferClient != nullptr;
-}
-
-sp<NativeHandle> BufferHubBuffer::duplicate() {
-    if (mBufferClient == nullptr) {
-        ALOGE("%s: missing BufferClient!", __FUNCTION__);
-        return nullptr;
-    }
-
-    hidl_handle token;
-    BufferHubStatus ret;
-    IBufferClient::duplicate_cb dupCb = [&](const auto& outToken, const auto& status) {
-        token = std::move(outToken);
-        ret = status;
-    };
-
-    if (!mBufferClient->duplicate(dupCb).isOk()) {
-        ALOGE("%s: duplicate transaction failed!", __FUNCTION__);
-        return nullptr;
-    } else if (ret != BufferHubStatus::NO_ERROR) {
-        ALOGE("%s: duplicate failed with error %u.", __FUNCTION__, ret);
-        return nullptr;
-    } else if (token.getNativeHandle() == nullptr) {
-        ALOGE("%s: duplicate got null token.", __FUNCTION__);
-        return nullptr;
-    }
-
-    return NativeHandle::create(native_handle_clone(token.getNativeHandle()), /*ownsHandle=*/true);
-}
-
-} // namespace android
diff --git a/libs/ui/BufferHubEventFd.cpp b/libs/ui/BufferHubEventFd.cpp
deleted file mode 100644
index bffc2ca..0000000
--- a/libs/ui/BufferHubEventFd.cpp
+++ /dev/null
@@ -1,49 +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.
- */
-
-#include <sys/eventfd.h>
-
-#include <log/log.h>
-#include <ui/BufferHubEventFd.h>
-
-namespace android {
-
-BufferHubEventFd::BufferHubEventFd() : mFd(eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK)) {}
-
-BufferHubEventFd::BufferHubEventFd(int fd) : mFd(fd) {}
-
-status_t BufferHubEventFd::signal() const {
-    if (!isValid()) {
-        ALOGE("%s: cannot signal an invalid eventfd.", __FUNCTION__);
-        return DEAD_OBJECT;
-    }
-
-    eventfd_write(mFd.get(), 1);
-    return OK;
-}
-
-status_t BufferHubEventFd::clear() const {
-    if (!isValid()) {
-        ALOGE("%s: cannot clear an invalid eventfd.", __FUNCTION__);
-        return DEAD_OBJECT;
-    }
-
-    eventfd_t value;
-    eventfd_read(mFd.get(), &value);
-    return OK;
-}
-
-} // namespace android
diff --git a/libs/ui/BufferHubMetadata.cpp b/libs/ui/BufferHubMetadata.cpp
deleted file mode 100644
index 05bc7dd..0000000
--- a/libs/ui/BufferHubMetadata.cpp
+++ /dev/null
@@ -1,104 +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.
- */
-
-#include <errno.h>
-#include <sys/mman.h>
-#include <limits>
-
-#include <cutils/ashmem.h>
-#include <log/log.h>
-#include <ui/BufferHubMetadata.h>
-
-namespace android {
-
-namespace {
-
-static const int kAshmemProt = PROT_READ | PROT_WRITE;
-
-} // namespace
-
-using BufferHubDefs::kMetadataHeaderSize;
-using BufferHubDefs::MetadataHeader;
-
-/* static */
-BufferHubMetadata BufferHubMetadata::create(size_t userMetadataSize) {
-    // The size the of metadata buffer is used as the "width" parameter during allocation. Thus it
-    // cannot overflow uint32_t.
-    if (userMetadataSize >= (std::numeric_limits<uint32_t>::max() - kMetadataHeaderSize)) {
-        ALOGE("BufferHubMetadata::Create: metadata size too big: %zu.", userMetadataSize);
-        return {};
-    }
-
-    const size_t metadataSize = userMetadataSize + kMetadataHeaderSize;
-    int fd = ashmem_create_region(/*name=*/"BufferHubMetadata", metadataSize);
-    if (fd < 0) {
-        ALOGE("BufferHubMetadata::Create: failed to create ashmem region.");
-        return {};
-    }
-
-    // Hand over the ownership of the fd to a unique_fd immediately after the successful
-    // return of ashmem_create_region. The ashmemFd is going to own the fd and to prevent fd
-    // leaks during error handling.
-    unique_fd ashmemFd{fd};
-
-    if (ashmem_set_prot_region(ashmemFd.get(), kAshmemProt) != 0) {
-        ALOGE("BufferHubMetadata::Create: failed to set protect region.");
-        return {};
-    }
-
-    return BufferHubMetadata::import(std::move(ashmemFd));
-}
-
-/* static */
-BufferHubMetadata BufferHubMetadata::import(unique_fd ashmemFd) {
-    if (!ashmem_valid(ashmemFd.get())) {
-        ALOGE("BufferHubMetadata::Import: invalid ashmem fd.");
-        return {};
-    }
-
-    size_t metadataSize = static_cast<size_t>(ashmem_get_size_region(ashmemFd.get()));
-    size_t userMetadataSize = metadataSize - kMetadataHeaderSize;
-
-    // Note that here the buffer state is mapped from shared memory as an atomic object. The
-    // std::atomic's constructor will not be called so that the original value stored in the memory
-    // region can be preserved.
-    auto metadataHeader = static_cast<MetadataHeader*>(mmap(nullptr, metadataSize, kAshmemProt,
-                                                            MAP_SHARED, ashmemFd.get(),
-                                                            /*offset=*/0));
-    if (metadataHeader == nullptr) {
-        ALOGE("BufferHubMetadata::Import: failed to map region.");
-        return {};
-    }
-
-    return BufferHubMetadata(userMetadataSize, std::move(ashmemFd), metadataHeader);
-}
-
-BufferHubMetadata::BufferHubMetadata(size_t userMetadataSize, unique_fd ashmemFd,
-                                     MetadataHeader* metadataHeader)
-      : mUserMetadataSize(userMetadataSize),
-        mAshmemFd(std::move(ashmemFd)),
-        mMetadataHeader(metadataHeader) {}
-
-BufferHubMetadata::~BufferHubMetadata() {
-    if (mMetadataHeader != nullptr) {
-        int ret = munmap(mMetadataHeader, metadataSize());
-        ALOGE_IF(ret != 0,
-                 "BufferHubMetadata::~BufferHubMetadata: failed to unmap ashmem, error=%d.", errno);
-        mMetadataHeader = nullptr;
-    }
-}
-
-} // namespace android
diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index 05fc590..3732fee 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -23,10 +23,6 @@
 
 #include <grallocusage/GrallocUsageConversion.h>
 
-#ifndef LIBUI_IN_VNDK
-#include <ui/BufferHubBuffer.h>
-#endif // LIBUI_IN_VNDK
-
 #include <ui/GraphicBufferAllocator.h>
 #include <ui/GraphicBufferMapper.h>
 #include <utils/Trace.h>
@@ -110,22 +106,6 @@
                                 inUsage, inStride);
 }
 
-#ifndef LIBUI_IN_VNDK
-GraphicBuffer::GraphicBuffer(std::unique_ptr<BufferHubBuffer> buffer) : GraphicBuffer() {
-    if (buffer == nullptr) {
-        mInitCheck = BAD_VALUE;
-        return;
-    }
-
-    mInitCheck = initWithHandle(buffer->duplicateHandle(), /*method=*/TAKE_UNREGISTERED_HANDLE,
-                                buffer->desc().width, buffer->desc().height,
-                                static_cast<PixelFormat>(buffer->desc().format),
-                                buffer->desc().layers, buffer->desc().usage, buffer->desc().stride);
-    mBufferId = buffer->id();
-    mBufferHubBuffer = std::move(buffer);
-}
-#endif // LIBUI_IN_VNDK
-
 GraphicBuffer::~GraphicBuffer()
 {
     ATRACE_CALL();
@@ -374,29 +354,14 @@
 }
 
 size_t GraphicBuffer::getFlattenedSize() const {
-#ifndef LIBUI_IN_VNDK
-    if (mBufferHubBuffer != nullptr) {
-        return 48;
-    }
-#endif
     return static_cast<size_t>(13 + (handle ? mTransportNumInts : 0)) * sizeof(int);
 }
 
 size_t GraphicBuffer::getFdCount() const {
-#ifndef LIBUI_IN_VNDK
-    if (mBufferHubBuffer != nullptr) {
-        return 0;
-    }
-#endif
     return static_cast<size_t>(handle ? mTransportNumFds : 0);
 }
 
 status_t GraphicBuffer::flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const {
-#ifndef LIBUI_IN_VNDK
-    if (mBufferHubBuffer != nullptr) {
-        return flattenBufferHubBuffer(buffer, size);
-    }
-#endif
     size_t sizeNeeded = GraphicBuffer::getFlattenedSize();
     if (size < sizeNeeded) return NO_MEMORY;
 
@@ -453,12 +418,6 @@
     } else if (buf[0] == 'GBFR') {
         // old version, when usage bits were 32-bits
         flattenWordCount = 12;
-    } else if (buf[0] == 'BHBB') { // BufferHub backed buffer.
-#ifndef LIBUI_IN_VNDK
-        return unflattenBufferHubBuffer(buffer, size);
-#else
-        return BAD_TYPE;
-#endif
     } else {
         return BAD_TYPE;
     }
@@ -565,76 +524,6 @@
     mDeathCallbacks.emplace_back(deathCallback, context);
 }
 
-#ifndef LIBUI_IN_VNDK
-status_t GraphicBuffer::flattenBufferHubBuffer(void*& buffer, size_t& size) const {
-    sp<NativeHandle> tokenHandle = mBufferHubBuffer->duplicate();
-    if (tokenHandle == nullptr || tokenHandle->handle() == nullptr ||
-        tokenHandle->handle()->numFds != 0) {
-        return BAD_VALUE;
-    }
-
-    // Size needed for one label, one number of ints inside the token, one generation number and
-    // the token itself.
-    int numIntsInToken = tokenHandle->handle()->numInts;
-    const size_t sizeNeeded = static_cast<size_t>(3 + numIntsInToken) * sizeof(int);
-    if (size < sizeNeeded) {
-        ALOGE("%s: needed size %d, given size %d. Not enough memory.", __FUNCTION__,
-              static_cast<int>(sizeNeeded), static_cast<int>(size));
-        return NO_MEMORY;
-    }
-    size -= sizeNeeded;
-
-    int* buf = static_cast<int*>(buffer);
-    buf[0] = 'BHBB';
-    buf[1] = numIntsInToken;
-    memcpy(buf + 2, tokenHandle->handle()->data, static_cast<size_t>(numIntsInToken) * sizeof(int));
-    buf[2 + numIntsInToken] = static_cast<int32_t>(mGenerationNumber);
-
-    return NO_ERROR;
-}
-
-status_t GraphicBuffer::unflattenBufferHubBuffer(void const*& buffer, size_t& size) {
-    const int* buf = static_cast<const int*>(buffer);
-    int numIntsInToken = buf[1];
-    // Size needed for one label, one number of ints inside the token, one generation number and
-    // the token itself.
-    const size_t sizeNeeded = static_cast<size_t>(3 + numIntsInToken) * sizeof(int);
-    if (size < sizeNeeded) {
-        ALOGE("%s: needed size %d, given size %d. Not enough memory.", __FUNCTION__,
-              static_cast<int>(sizeNeeded), static_cast<int>(size));
-        return NO_MEMORY;
-    }
-    size -= sizeNeeded;
-    native_handle_t* importToken = native_handle_create(/*numFds=*/0, /*numInts=*/numIntsInToken);
-    memcpy(importToken->data, buf + 2, static_cast<size_t>(buf[1]) * sizeof(int));
-    sp<NativeHandle> importTokenHandle = NativeHandle::create(importToken, /*ownHandle=*/true);
-    std::unique_ptr<BufferHubBuffer> bufferHubBuffer = BufferHubBuffer::import(importTokenHandle);
-    if (bufferHubBuffer == nullptr || bufferHubBuffer.get() == nullptr) {
-        return BAD_VALUE;
-    }
-    // Reconstruct this GraphicBuffer object using the new BufferHubBuffer object.
-    if (handle) {
-        free_handle();
-    }
-    mId = 0;
-    mGenerationNumber = static_cast<uint32_t>(buf[2 + numIntsInToken]);
-    mInitCheck =
-            initWithHandle(bufferHubBuffer->duplicateHandle(), /*method=*/TAKE_UNREGISTERED_HANDLE,
-                           bufferHubBuffer->desc().width, bufferHubBuffer->desc().height,
-                           static_cast<PixelFormat>(bufferHubBuffer->desc().format),
-                           bufferHubBuffer->desc().layers, bufferHubBuffer->desc().usage,
-                           bufferHubBuffer->desc().stride);
-    mBufferId = bufferHubBuffer->id();
-    mBufferHubBuffer = std::move(bufferHubBuffer);
-
-    return NO_ERROR;
-}
-
-bool GraphicBuffer::isBufferHubBuffer() const {
-    return mBufferHubBuffer != nullptr;
-}
-#endif // LIBUI_IN_VNDK
-
 // ---------------------------------------------------------------------------
 
 }; // namespace android
diff --git a/libs/ui/include/ui/BufferHubBuffer.h b/libs/ui/include/ui/BufferHubBuffer.h
deleted file mode 100644
index 5ba189c..0000000
--- a/libs/ui/include/ui/BufferHubBuffer.h
+++ /dev/null
@@ -1,144 +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.
- */
-
-#ifndef ANDROID_BUFFER_HUB_BUFFER_H_
-#define ANDROID_BUFFER_HUB_BUFFER_H_
-
-#include <android/frameworks/bufferhub/1.0/IBufferClient.h>
-#include <android/hardware_buffer.h>
-#include <cutils/native_handle.h>
-#include <ui/BufferHubDefs.h>
-#include <ui/BufferHubEventFd.h>
-#include <ui/BufferHubMetadata.h>
-#include <utils/NativeHandle.h>
-
-namespace android {
-
-class BufferHubBuffer {
-public:
-    // Allocates a standalone BufferHubBuffer.
-    static std::unique_ptr<BufferHubBuffer> create(uint32_t width, uint32_t height,
-                                                   uint32_t layerCount, uint32_t format,
-                                                   uint64_t usage, size_t userMetadataSize);
-
-    // Imports the given token to a BufferHubBuffer. Not taking ownership of the token.
-    static std::unique_ptr<BufferHubBuffer> import(const sp<NativeHandle>& token);
-
-    BufferHubBuffer(const BufferHubBuffer&) = delete;
-    void operator=(const BufferHubBuffer&) = delete;
-
-    virtual ~BufferHubBuffer();
-
-    // Gets ID of the buffer client. All BufferHubBuffer clients derived from the same buffer in
-    // BufferHub share the same buffer id.
-    int id() const { return mId; }
-
-    // Returns the buffer description, which is guaranteed to be faithful values from BufferHub.
-    const AHardwareBuffer_Desc& desc() const { return mBufferDesc; }
-
-    // Duplicate the underlying Gralloc buffer handle. Caller is responsible to free the handle
-    // after use.
-    native_handle_t* duplicateHandle() {
-        return native_handle_clone(mBufferHandle.getNativeHandle());
-    }
-
-    const BufferHubEventFd& eventFd() const { return mEventFd; }
-
-    // Returns the current value of MetadataHeader::bufferState.
-    uint32_t bufferState() const { return mBufferState->load(std::memory_order_acquire); }
-
-    // A state mask which is unique to a buffer hub client among all its siblings sharing the same
-    // concrete graphic buffer.
-    uint32_t clientStateMask() const { return mClientStateMask; }
-
-    size_t userMetadataSize() const { return mMetadata.userMetadataSize(); }
-
-    // Returns true if the BufferClient is still alive.
-    bool isConnected() const { return mBufferClient->ping().isOk(); }
-
-    // Returns true if the buffer is valid: non-null buffer handle, valid id, valid client bit mask,
-    // valid metadata and valid buffer client
-    bool isValid() const;
-
-    // Gains the buffer for exclusive write permission. Read permission is implied once a buffer is
-    // gained.
-    // The buffer can be gained as long as there is no other client in acquired or gained state.
-    int gain();
-
-    // Posts the gained buffer for other buffer clients to use the buffer.
-    // The buffer can be posted iff the buffer state for this client is gained.
-    // After posting the buffer, this client is put to released state and does not have access to
-    // the buffer for this cycle of the usage of the buffer.
-    int post();
-
-    // Acquires the buffer for shared read permission.
-    // The buffer can be acquired iff the buffer state for this client is posted.
-    int acquire();
-
-    // Releases the buffer.
-    // The buffer can be released from any buffer state.
-    // After releasing the buffer, this client no longer have any permissions to the buffer for the
-    // current cycle of the usage of the buffer.
-    int release();
-
-    // Returns whether the buffer is released by all active clients or not.
-    bool isReleased() const;
-
-    // Creates a token that stands for this BufferHubBuffer client and could be used for Import to
-    // create another BufferHubBuffer. The new BufferHubBuffer will share the same underlying
-    // gralloc buffer and ashmem region for metadata. Not taking ownership of the token.
-    // Returns a valid token on success, nullptr on failure.
-    sp<NativeHandle> duplicate();
-
-private:
-    BufferHubBuffer(uint32_t width, uint32_t height, uint32_t layerCount, uint32_t format,
-                    uint64_t usage, size_t userMetadataSize);
-
-    BufferHubBuffer(const sp<NativeHandle>& token);
-
-    int initWithBufferTraits(const frameworks::bufferhub::V1_0::BufferTraits& bufferTraits);
-
-    // Global id for the buffer that is consistent across processes.
-    int mId = 0;
-
-    // Client state mask of this BufferHubBuffer object. It is unique amoung all
-    // clients/users of the buffer.
-    uint32_t mClientStateMask = 0U;
-
-    // Stores ground truth of the buffer.
-    AHardwareBuffer_Desc mBufferDesc;
-
-    // Wraps the gralloc buffer handle of this buffer.
-    hardware::hidl_handle mBufferHandle;
-
-    // Event fd used for signalling buffer state changes. Shared by all clients of the same buffer.
-    BufferHubEventFd mEventFd;
-
-    // An ashmem-based metadata object. The same shared memory are mapped to the
-    // bufferhubd daemon and all buffer clients.
-    BufferHubMetadata mMetadata;
-    // Shortcuts to the atomics inside the header of mMetadata.
-    std::atomic<uint32_t>* mBufferState = nullptr;
-    std::atomic<uint32_t>* mFenceState = nullptr;
-    std::atomic<uint32_t>* mActiveClientsBitMask = nullptr;
-
-    // HwBinder backend
-    sp<frameworks::bufferhub::V1_0::IBufferClient> mBufferClient;
-};
-
-} // namespace android
-
-#endif // ANDROID_BUFFER_HUB_BUFFER_H_
diff --git a/libs/ui/include/ui/BufferHubEventFd.h b/libs/ui/include/ui/BufferHubEventFd.h
deleted file mode 100644
index 8772304..0000000
--- a/libs/ui/include/ui/BufferHubEventFd.h
+++ /dev/null
@@ -1,65 +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.
- */
-
-#ifndef ANDROID_BUFFER_HUB_EVENT_FD_H_
-#define ANDROID_BUFFER_HUB_EVENT_FD_H_
-
-#include <android-base/unique_fd.h>
-#include <utils/Errors.h>
-
-namespace android {
-
-class BufferHubEventFd {
-public:
-    /**
-     * Constructs a valid event fd.
-     */
-    BufferHubEventFd();
-
-    /**
-     * Constructs from a valid event fd. Caller is responsible for the validity of the fd. Takes
-     * ownership.
-     */
-    BufferHubEventFd(int fd);
-
-    /**
-     * Returns whether this BufferHubEventFd holds a valid event_fd.
-     */
-    bool isValid() const { return get() >= 0; }
-
-    /**
-     * Returns the fd number of the BufferHubEventFd object. Note that there is no ownership
-     * transfer.
-     */
-    int get() const { return mFd.get(); }
-
-    /**
-     * Signals the eventfd.
-     */
-    status_t signal() const;
-
-    /**
-     * Clears the signal from this eventfd if it is signaled.
-     */
-    status_t clear() const;
-
-private:
-    base::unique_fd mFd;
-};
-
-} // namespace android
-
-#endif // ANDROID_BUFFER_HUB_EVENT_FD_H_
diff --git a/libs/ui/include/ui/BufferHubMetadata.h b/libs/ui/include/ui/BufferHubMetadata.h
deleted file mode 100644
index 3482507..0000000
--- a/libs/ui/include/ui/BufferHubMetadata.h
+++ /dev/null
@@ -1,88 +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.
- */
-
-#ifndef ANDROID_BUFFER_HUB_METADATA_H_
-#define ANDROID_BUFFER_HUB_METADATA_H_
-
-#include <android-base/unique_fd.h>
-#include <ui/BufferHubDefs.h>
-
-namespace android {
-
-namespace {
-using base::unique_fd;
-} // namespace
-
-class BufferHubMetadata {
-public:
-    // Creates a new BufferHubMetadata backed by an ashmem region.
-    //
-    // @param userMetadataSize Size in bytes of the user defined metadata. The entire metadata
-    //        shared memory region to be allocated is the size of canonical
-    //        BufferHubDefs::MetadataHeader plus userMetadataSize.
-    static BufferHubMetadata create(size_t userMetadataSize);
-
-    // Imports an existing BufferHubMetadata from an ashmem FD.
-    //
-    // @param ashmemFd Ashmem file descriptor representing an ashmem region.
-    static BufferHubMetadata import(unique_fd ashmemFd);
-
-    BufferHubMetadata() = default;
-
-    BufferHubMetadata(BufferHubMetadata&& other) { *this = std::move(other); }
-
-    ~BufferHubMetadata();
-
-    BufferHubMetadata& operator=(BufferHubMetadata&& other) {
-        if (this != &other) {
-            mUserMetadataSize = other.mUserMetadataSize;
-            other.mUserMetadataSize = 0;
-
-            mAshmemFd = std::move(other.mAshmemFd);
-
-            // The old raw mMetadataHeader pointer must be cleared, otherwise the destructor will
-            // automatically mummap() the shared memory.
-            mMetadataHeader = other.mMetadataHeader;
-            other.mMetadataHeader = nullptr;
-        }
-        return *this;
-    }
-
-    // Returns true if the metadata is valid, i.e. the metadata has a valid ashmem fd and the ashmem
-    // has been mapped into virtual address space.
-    bool isValid() const { return mAshmemFd.get() != -1 && mMetadataHeader != nullptr; }
-
-    size_t userMetadataSize() const { return mUserMetadataSize; }
-    size_t metadataSize() const { return mUserMetadataSize + BufferHubDefs::kMetadataHeaderSize; }
-
-    const unique_fd& ashmemFd() const { return mAshmemFd; }
-    BufferHubDefs::MetadataHeader* metadataHeader() { return mMetadataHeader; }
-
-private:
-    BufferHubMetadata(size_t userMetadataSize, unique_fd ashmemFd,
-                      BufferHubDefs::MetadataHeader* metadataHeader);
-
-    BufferHubMetadata(const BufferHubMetadata&) = delete;
-    void operator=(const BufferHubMetadata&) = delete;
-
-    size_t mUserMetadataSize = 0;
-    unique_fd mAshmemFd;
-    BufferHubDefs::MetadataHeader* mMetadataHeader = nullptr;
-};
-
-} // namespace android
-
-#endif // ANDROID_BUFFER_HUB_METADATA_H_
diff --git a/libs/ui/include/ui/DeviceProductInfo.h b/libs/ui/include/ui/DeviceProductInfo.h
index c396e73..af00342 100644
--- a/libs/ui/include/ui/DeviceProductInfo.h
+++ b/libs/ui/include/ui/DeviceProductInfo.h
@@ -31,6 +31,10 @@
 // product information about the intermediate device.
 struct DeviceProductInfo {
     static constexpr size_t TEXT_BUFFER_SIZE = 20;
+    static constexpr size_t RELATIVE_ADDRESS_SIZE = 4;
+
+    using RelativeAddress = std::array<uint8_t, RELATIVE_ADDRESS_SIZE>;
+    static constexpr RelativeAddress NO_RELATIVE_ADDRESS = {0xff, 0xff, 0xff, 0xff};
 
     struct ModelYear {
         uint32_t year;
@@ -54,6 +58,11 @@
 
     using ManufactureOrModelDate = std::variant<ModelYear, ManufactureYear, ManufactureWeekAndYear>;
     ManufactureOrModelDate manufactureOrModelDate;
+
+    // Relative address in the display network. Unavailable address is indicated
+    // by all elements equal to 255.
+    // For example, for HDMI connected device this will be the physical address.
+    RelativeAddress relativeAddress;
 };
 
 } // namespace android
diff --git a/libs/ui/include/ui/GraphicBuffer.h b/libs/ui/include/ui/GraphicBuffer.h
index c195342..013505a 100644
--- a/libs/ui/include/ui/GraphicBuffer.h
+++ b/libs/ui/include/ui/GraphicBuffer.h
@@ -38,10 +38,6 @@
 
 namespace android {
 
-#ifndef LIBUI_IN_VNDK
-class BufferHubBuffer;
-#endif // LIBUI_IN_VNDK
-
 class GraphicBufferMapper;
 
 using GraphicBufferDeathCallback = std::function<void(void* /*context*/, uint64_t bufferId)>;
@@ -147,11 +143,6 @@
     GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
             uint32_t inUsage, std::string requestorName = "<Unknown>");
 
-#ifndef LIBUI_IN_VNDK
-    // Create a GraphicBuffer from an existing BufferHubBuffer.
-    GraphicBuffer(std::unique_ptr<BufferHubBuffer> buffer);
-#endif // LIBUI_IN_VNDK
-
     // return status
     status_t initCheck() const;
 
@@ -163,7 +154,6 @@
     uint32_t getLayerCount() const      { return static_cast<uint32_t>(layerCount); }
     Rect getBounds() const              { return Rect(width, height); }
     uint64_t getId() const              { return mId; }
-    int32_t getBufferId() const { return mBufferId; }
 
     uint32_t getGenerationNumber() const { return mGenerationNumber; }
     void setGenerationNumber(uint32_t generation) {
@@ -225,11 +215,6 @@
 
     void addDeathCallback(GraphicBufferDeathCallback deathCallback, void* context);
 
-#ifndef LIBUI_IN_VNDK
-    // Returns whether this GraphicBuffer is backed by BufferHubBuffer.
-    bool isBufferHubBuffer() const;
-#endif // LIBUI_IN_VNDK
-
 private:
     ~GraphicBuffer();
 
@@ -275,12 +260,6 @@
 
     uint64_t mId;
 
-    // System unique buffer ID. Note that this is different from mId, which is process unique. For
-    // GraphicBuffer backed by BufferHub, the mBufferId is a system unique identifier that stays the
-    // same cross process for the same chunck of underlying memory. Also note that this only applies
-    // to GraphicBuffers that are backed by BufferHub.
-    int32_t mBufferId = -1;
-
     // Stores the generation number of this buffer. If this number does not
     // match the BufferQueue's internal generation number (set through
     // IGBP::setGenerationNumber), attempts to attach the buffer will fail.
@@ -299,22 +278,6 @@
     // and informs SurfaceFlinger that it should drop its strong pointer reference to the buffer.
     std::vector<std::pair<GraphicBufferDeathCallback, void* /*mDeathCallbackContext*/>>
             mDeathCallbacks;
-
-#ifndef LIBUI_IN_VNDK
-    // Flatten this GraphicBuffer object if backed by BufferHubBuffer.
-    status_t flattenBufferHubBuffer(void*& buffer, size_t& size) const;
-
-    // Unflatten into BufferHubBuffer backed GraphicBuffer.
-    // Unflatten will fail if the original GraphicBuffer object is destructed. For instance, a
-    // GraphicBuffer backed by BufferHubBuffer_1 flatten in process/thread A, transport the token
-    // to process/thread B through a socket, BufferHubBuffer_1 dies and bufferhub invalidated the
-    // token. Race condition occurs between the invalidation of the token in bufferhub process and
-    // process/thread B trying to unflatten and import the buffer with that token.
-    status_t unflattenBufferHubBuffer(void const*& buffer, size_t& size);
-
-    // Stores a BufferHubBuffer that handles buffer signaling, identification.
-    std::unique_ptr<BufferHubBuffer> mBufferHubBuffer;
-#endif // LIBUI_IN_VNDK
 };
 
 }; // namespace android
diff --git a/libs/ui/tests/Android.bp b/libs/ui/tests/Android.bp
index 605c5a9..b53342c 100644
--- a/libs/ui/tests/Android.bp
+++ b/libs/ui/tests/Android.bp
@@ -31,7 +31,6 @@
 cc_test {
     name: "GraphicBufferAllocator_test",
     header_libs: [
-        "libdvr_headers",
         "libnativewindow_headers",
     ],
     static_libs: [
@@ -52,11 +51,9 @@
 cc_test {
     name: "GraphicBuffer_test",
     header_libs: [
-        "libdvr_headers",
         "libnativewindow_headers",
     ],
     shared_libs: [
-        "android.frameworks.bufferhub@1.0",
         "libcutils",
         "libhidlbase",
         "libui",
@@ -71,11 +68,7 @@
     name: "GraphicBufferOverBinder_test",
     srcs: ["GraphicBufferOverBinder_test.cpp"],
     cflags: ["-Wall", "-Werror"],
-    header_libs: [
-        "libdvr_headers",
-    ],
     shared_libs: [
-        "android.frameworks.bufferhub@1.0",
         "libbinder",
         "libgui",
         "liblog",
@@ -85,31 +78,6 @@
 }
 
 cc_test {
-    name: "BufferHub_test",
-    header_libs: [
-        "libdvr_headers",
-        "libnativewindow_headers",
-    ],
-    static_libs: [
-        "libgmock",
-    ],
-    shared_libs: [
-        "android.frameworks.bufferhub@1.0",
-        "libcutils",
-        "libhidlbase",
-        "liblog",
-        "libui",
-        "libutils"
-    ],
-    srcs: [
-        "BufferHubBuffer_test.cpp",
-        "BufferHubEventFd_test.cpp",
-        "BufferHubMetadata_test.cpp",
-    ],
-    cflags: ["-Wall", "-Werror"],
-}
-
-cc_test {
     name: "Size_test",
     test_suites: ["device-tests"],
     shared_libs: ["libui"],
diff --git a/libs/ui/tests/BufferHubBuffer_test.cpp b/libs/ui/tests/BufferHubBuffer_test.cpp
deleted file mode 100644
index 0c73a72..0000000
--- a/libs/ui/tests/BufferHubBuffer_test.cpp
+++ /dev/null
@@ -1,477 +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.
- */
-
-#define LOG_TAG "BufferHubBufferTest"
-
-#include <errno.h>
-#include <sys/epoll.h>
-
-#include <android/frameworks/bufferhub/1.0/IBufferHub.h>
-#include <android/hardware_buffer.h>
-#include <cutils/native_handle.h>
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <hidl/ServiceManagement.h>
-#include <hwbinder/IPCThreadState.h>
-#include <ui/BufferHubBuffer.h>
-#include <ui/BufferHubEventFd.h>
-
-namespace android {
-
-namespace {
-
-using ::android::BufferHubDefs::isAnyClientAcquired;
-using ::android::BufferHubDefs::isAnyClientGained;
-using ::android::BufferHubDefs::isAnyClientPosted;
-using ::android::BufferHubDefs::isClientAcquired;
-using ::android::BufferHubDefs::isClientGained;
-using ::android::BufferHubDefs::isClientPosted;
-using ::android::BufferHubDefs::isClientReleased;
-using ::android::BufferHubDefs::kMetadataHeaderSize;
-using ::android::frameworks::bufferhub::V1_0::IBufferHub;
-using ::testing::IsNull;
-using ::testing::NotNull;
-
-const int kWidth = 640;
-const int kHeight = 480;
-const int kLayerCount = 1;
-const int kFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-const int kUsage = 0;
-const AHardwareBuffer_Desc kDesc = {kWidth, kHeight,        kLayerCount,  kFormat,
-                                    kUsage, /*stride=*/0UL, /*rfu0=*/0UL, /*rfu1=*/0ULL};
-const size_t kUserMetadataSize = 1;
-
-class BufferHubBufferTest : public ::testing::Test {
-protected:
-    void SetUp() override {
-        android::hardware::ProcessState::self()->startThreadPool();
-
-        if (!BufferHubServiceRunning()) {
-            // TODO(b/112940221): Enforce the test cross all devices once BufferHub lands in Android
-            // R for all Android varieties.
-            GTEST_SKIP() << "Skip test as the BufferHub service is not running.";
-        }
-    }
-
-    bool BufferHubServiceRunning() {
-        sp<IBufferHub> bufferhub = IBufferHub::getService();
-        return bufferhub.get() != nullptr;
-    }
-};
-
-bool cmpAHardwareBufferDesc(const AHardwareBuffer_Desc& desc, const AHardwareBuffer_Desc& other) {
-    // Not comparing stride because it's unknown before allocation
-    return desc.format == other.format && desc.height == other.height &&
-            desc.layers == other.layers && desc.usage == other.usage && desc.width == other.width;
-}
-
-class BufferHubBufferStateTransitionTest : public BufferHubBufferTest {
-protected:
-    void SetUp() override {
-        BufferHubBufferTest::SetUp();
-
-        if (IsSkipped()) {
-            // If the base class' SetUp() stated the test should be skipped, we should short
-            // circuit this sub-class' logic.
-            return;
-        }
-
-        CreateTwoClientsOfABuffer();
-    }
-
-    std::unique_ptr<BufferHubBuffer> b1;
-    uint32_t b1ClientMask = 0U;
-    std::unique_ptr<BufferHubBuffer> b2;
-    uint32_t b2ClientMask = 0U;
-
-private:
-    // Creates b1 and b2 as the clients of the same buffer for testing.
-    void CreateTwoClientsOfABuffer();
-};
-
-void BufferHubBufferStateTransitionTest::CreateTwoClientsOfABuffer() {
-    b1 = BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage, kUserMetadataSize);
-    ASSERT_THAT(b1, NotNull());
-    b1ClientMask = b1->clientStateMask();
-    ASSERT_NE(b1ClientMask, 0U);
-
-    sp<NativeHandle> token = b1->duplicate();
-    ASSERT_THAT(token, NotNull());
-
-    b2 = BufferHubBuffer::import(token);
-    ASSERT_THAT(b2, NotNull());
-
-    b2ClientMask = b2->clientStateMask();
-    ASSERT_NE(b2ClientMask, 0U);
-    ASSERT_NE(b2ClientMask, b1ClientMask);
-}
-
-TEST_F(BufferHubBufferTest, CreateBufferFails) {
-    // Buffer Creation will fail: BLOB format requires height to be 1.
-    auto b1 = BufferHubBuffer::create(kWidth, /*height=*/2, kLayerCount,
-                                      /*format=*/HAL_PIXEL_FORMAT_BLOB, kUsage, kUserMetadataSize);
-
-    EXPECT_THAT(b1, IsNull());
-
-    // Buffer Creation will fail: user metadata size too large.
-    auto b2 = BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                      /*userMetadataSize=*/std::numeric_limits<size_t>::max());
-
-    EXPECT_THAT(b2, IsNull());
-
-    // Buffer Creation will fail: user metadata size too large.
-    const size_t userMetadataSize = std::numeric_limits<size_t>::max() - kMetadataHeaderSize;
-    auto b3 = BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                      userMetadataSize);
-
-    EXPECT_THAT(b3, IsNull());
-}
-
-TEST_F(BufferHubBufferTest, CreateBuffer) {
-    auto b1 = BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                      kUserMetadataSize);
-    ASSERT_THAT(b1, NotNull());
-    EXPECT_TRUE(b1->isConnected());
-    EXPECT_TRUE(b1->isValid());
-    EXPECT_TRUE(cmpAHardwareBufferDesc(b1->desc(), kDesc));
-    EXPECT_EQ(b1->userMetadataSize(), kUserMetadataSize);
-}
-
-TEST_F(BufferHubBufferTest, DuplicateAndImportBuffer) {
-    auto b1 = BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                      kUserMetadataSize);
-    ASSERT_THAT(b1, NotNull());
-    EXPECT_TRUE(b1->isValid());
-
-    sp<NativeHandle> token = b1->duplicate();
-    ASSERT_THAT(token, NotNull());
-
-    // The detached buffer should still be valid.
-    EXPECT_TRUE(b1->isConnected());
-    EXPECT_TRUE(b1->isValid());
-
-    std::unique_ptr<BufferHubBuffer> b2 = BufferHubBuffer::import(token);
-
-    ASSERT_THAT(b2, NotNull());
-    EXPECT_TRUE(b2->isValid());
-
-    EXPECT_TRUE(cmpAHardwareBufferDesc(b1->desc(), b2->desc()));
-    EXPECT_EQ(b1->userMetadataSize(), b2->userMetadataSize());
-
-    // These two buffer instances are based on the same physical buffer under the
-    // hood, so they should share the same id.
-    EXPECT_EQ(b1->id(), b2->id());
-    // We use clientStateMask() to tell those two instances apart.
-    EXPECT_NE(b1->clientStateMask(), b2->clientStateMask());
-
-    // Both buffer instances should be in released state currently.
-    EXPECT_TRUE(b1->isReleased());
-    EXPECT_TRUE(b2->isReleased());
-
-    // The event fd should behave like duped event fds.
-    const BufferHubEventFd& eventFd1 = b1->eventFd();
-    ASSERT_GE(eventFd1.get(), 0);
-    const BufferHubEventFd& eventFd2 = b2->eventFd();
-    ASSERT_GE(eventFd2.get(), 0);
-
-    base::unique_fd epollFd(epoll_create(64));
-    ASSERT_GE(epollFd.get(), 0);
-
-    // Add eventFd1 to epoll set, and signal eventFd2.
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd1.get(), &e), 0) << strerror(errno);
-
-    std::array<epoll_event, 1> events;
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    eventFd2.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    eventFd2.signal();
-    eventFd2.clear();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubBufferTest, ImportFreedBuffer) {
-    auto b1 = BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                      kUserMetadataSize);
-    ASSERT_THAT(b1, NotNull());
-    EXPECT_TRUE(b1->isValid());
-
-    sp<NativeHandle> token = b1->duplicate();
-    ASSERT_THAT(token, NotNull());
-
-    // Explicitly destroy b1. Backend buffer should be freed and token becomes invalid
-    b1.reset();
-
-    std::unique_ptr<BufferHubBuffer> b2 = BufferHubBuffer::import(token);
-
-    // Import should fail with INVALID_TOKEN
-    EXPECT_THAT(b2, IsNull());
-}
-
-// nullptr must not crash the service
-TEST_F(BufferHubBufferTest, ImportNullToken) {
-    auto b1 = BufferHubBuffer::import(nullptr);
-    EXPECT_THAT(b1, IsNull());
-}
-
-TEST_F(BufferHubBufferTest, ImportInvalidToken) {
-    native_handle_t* token = native_handle_create(/*numFds=*/0, /*numInts=*/1);
-    token->data[0] = 0;
-
-    sp<NativeHandle> tokenHandle = NativeHandle::create(token, /*ownHandle=*/true);
-    auto b1 = BufferHubBuffer::import(tokenHandle);
-
-    EXPECT_THAT(b1, IsNull());
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, GainBuffer_fromReleasedState) {
-    ASSERT_TRUE(b1->isReleased());
-
-    // Successful gaining the buffer should change the buffer state bit of b1 to
-    // gained state, other client state bits to released state.
-    EXPECT_EQ(b1->gain(), 0);
-    EXPECT_TRUE(isClientGained(b1->bufferState(), b1ClientMask));
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, GainBuffer_fromGainedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    auto currentBufferState = b1->bufferState();
-    ASSERT_TRUE(isClientGained(currentBufferState, b1ClientMask));
-
-    // Gaining from gained state by the same client should not return error.
-    EXPECT_EQ(b1->gain(), 0);
-
-    // Gaining from gained state by another client should return error.
-    EXPECT_EQ(b2->gain(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, GainBuffer_fromAcquiredState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_EQ(b2->acquire(), 0);
-    ASSERT_TRUE(isAnyClientAcquired(b1->bufferState()));
-
-    // Gaining from acquired state should fail.
-    EXPECT_EQ(b1->gain(), -EBUSY);
-    EXPECT_EQ(b2->gain(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, GainBuffer_fromOtherClientInPostedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_TRUE(isAnyClientPosted(b1->bufferState()));
-
-    // Gaining a buffer who has other posted client should succeed.
-    EXPECT_EQ(b1->gain(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, GainBuffer_fromSelfInPostedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_TRUE(isAnyClientPosted(b1->bufferState()));
-
-    // A posted client should be able to gain the buffer when there is no other clients in
-    // acquired state.
-    EXPECT_EQ(b2->gain(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, PostBuffer_fromOtherInGainedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_TRUE(isClientGained(b1->bufferState(), b1ClientMask));
-
-    EXPECT_EQ(b2->post(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, PostBuffer_fromSelfInGainedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_TRUE(isClientGained(b1->bufferState(), b1ClientMask));
-
-    EXPECT_EQ(b1->post(), 0);
-    auto currentBufferState = b1->bufferState();
-    EXPECT_TRUE(isClientReleased(currentBufferState, b1ClientMask));
-    EXPECT_TRUE(isClientPosted(currentBufferState, b2ClientMask));
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, PostBuffer_fromPostedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_TRUE(isAnyClientPosted(b1->bufferState()));
-
-    // Post from posted state should fail.
-    EXPECT_EQ(b1->post(), -EBUSY);
-    EXPECT_EQ(b2->post(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, PostBuffer_fromAcquiredState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_EQ(b2->acquire(), 0);
-    ASSERT_TRUE(isAnyClientAcquired(b1->bufferState()));
-
-    // Posting from acquired state should fail.
-    EXPECT_EQ(b1->post(), -EBUSY);
-    EXPECT_EQ(b2->post(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, PostBuffer_fromReleasedState) {
-    ASSERT_TRUE(b1->isReleased());
-
-    // Posting from released state should fail.
-    EXPECT_EQ(b1->post(), -EBUSY);
-    EXPECT_EQ(b2->post(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, AcquireBuffer_fromSelfInPostedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_TRUE(isClientPosted(b1->bufferState(), b2ClientMask));
-
-    // Acquire from posted state should pass.
-    EXPECT_EQ(b2->acquire(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, AcquireBuffer_fromOtherInPostedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_TRUE(isClientPosted(b1->bufferState(), b2ClientMask));
-
-    // Acquire from released state should fail, although there are other clients
-    // in posted state.
-    EXPECT_EQ(b1->acquire(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, AcquireBuffer_fromSelfInAcquiredState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_EQ(b2->acquire(), 0);
-    auto currentBufferState = b1->bufferState();
-    ASSERT_TRUE(isClientAcquired(currentBufferState, b2ClientMask));
-
-    // Acquiring from acquired state by the same client should not error out.
-    EXPECT_EQ(b2->acquire(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, AcquireBuffer_fromReleasedState) {
-    ASSERT_TRUE(b1->isReleased());
-
-    // Acquiring form released state should fail.
-    EXPECT_EQ(b1->acquire(), -EBUSY);
-    EXPECT_EQ(b2->acquire(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, AcquireBuffer_fromGainedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_TRUE(isAnyClientGained(b1->bufferState()));
-
-    // Acquiring from gained state should fail.
-    EXPECT_EQ(b1->acquire(), -EBUSY);
-    EXPECT_EQ(b2->acquire(), -EBUSY);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, ReleaseBuffer_fromSelfInReleasedState) {
-    ASSERT_TRUE(b1->isReleased());
-
-    EXPECT_EQ(b1->release(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, ReleaseBuffer_fromSelfInGainedState) {
-    ASSERT_TRUE(b1->isReleased());
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_TRUE(isAnyClientGained(b1->bufferState()));
-
-    EXPECT_EQ(b1->release(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, ReleaseBuffer_fromSelfInPostedState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_TRUE(isAnyClientPosted(b1->bufferState()));
-
-    EXPECT_EQ(b2->release(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, ReleaseBuffer_fromSelfInAcquiredState) {
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-    ASSERT_EQ(b2->acquire(), 0);
-    ASSERT_TRUE(isAnyClientAcquired(b1->bufferState()));
-
-    EXPECT_EQ(b2->release(), 0);
-}
-
-TEST_F(BufferHubBufferStateTransitionTest, BasicUsage) {
-    // 1 producer buffer and 1 consumer buffer initialised in testcase setup.
-    // Test if this set of basic operation succeed:
-    // Producer post three times to the consumer, and released by consumer.
-    for (int i = 0; i < 3; ++i) {
-        ASSERT_EQ(b1->gain(), 0);
-        ASSERT_EQ(b1->post(), 0);
-        ASSERT_EQ(b2->acquire(), 0);
-        ASSERT_EQ(b2->release(), 0);
-    }
-}
-
-TEST_F(BufferHubBufferTest, createNewConsumerAfterGain) {
-    // Create a poducer buffer and gain.
-    std::unique_ptr<BufferHubBuffer> b1 =
-            BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                    kUserMetadataSize);
-    ASSERT_THAT(b1, NotNull());
-    ASSERT_EQ(b1->gain(), 0);
-
-    // Create a consumer of the buffer and test if the consumer can acquire the
-    // buffer if producer posts.
-    sp<NativeHandle> token = b1->duplicate();
-    ASSERT_THAT(token, NotNull());
-
-    std::unique_ptr<BufferHubBuffer> b2 = BufferHubBuffer::import(token);
-
-    ASSERT_THAT(b2, NotNull());
-    ASSERT_NE(b1->clientStateMask(), b2->clientStateMask());
-
-    ASSERT_EQ(b1->post(), 0);
-    EXPECT_EQ(b2->acquire(), 0);
-}
-
-TEST_F(BufferHubBufferTest, createNewConsumerAfterPost) {
-    // Create a poducer buffer and post.
-    std::unique_ptr<BufferHubBuffer> b1 =
-            BufferHubBuffer::create(kWidth, kHeight, kLayerCount, kFormat, kUsage,
-                                    kUserMetadataSize);
-    ASSERT_EQ(b1->gain(), 0);
-    ASSERT_EQ(b1->post(), 0);
-
-    // Create a consumer of the buffer and test if the consumer can acquire the
-    // buffer if producer posts.
-    sp<NativeHandle> token = b1->duplicate();
-    ASSERT_THAT(token, NotNull());
-
-    std::unique_ptr<BufferHubBuffer> b2 = BufferHubBuffer::import(token);
-
-    ASSERT_THAT(b2, NotNull());
-    ASSERT_NE(b1->clientStateMask(), b2->clientStateMask());
-
-    EXPECT_EQ(b2->acquire(), 0);
-}
-
-} // namespace
-
-} // namespace android
diff --git a/libs/ui/tests/BufferHubEventFd_test.cpp b/libs/ui/tests/BufferHubEventFd_test.cpp
deleted file mode 100644
index ef1781f..0000000
--- a/libs/ui/tests/BufferHubEventFd_test.cpp
+++ /dev/null
@@ -1,428 +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.
- */
-
-#define LOG_TAG "BufferHubEventFdTest"
-
-#include <sys/epoll.h>
-#include <sys/eventfd.h>
-
-#include <array>
-#include <condition_variable>
-#include <mutex>
-#include <thread>
-
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <log/log.h>
-#include <ui/BufferHubEventFd.h>
-
-namespace android {
-
-namespace {
-
-const int kTimeout = 100;
-const std::chrono::milliseconds kTimeoutMs(kTimeout);
-const int kTestRuns = 5;
-
-using ::testing::Contains;
-using BufferHubEventFdTest = ::testing::Test;
-
-} // namespace
-
-TEST_F(BufferHubEventFdTest, EventFd_testSingleEpollFd) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-
-    base::unique_fd epollFd(epoll_create(64));
-    ASSERT_GE(epollFd.get(), 0);
-
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    std::array<epoll_event, 1> events;
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    eventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    // Check that it can receive consecutive signal.
-    eventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    // Check that it can receive consecutive signal from a duplicated eventfd.
-    BufferHubEventFd dupEventFd(dup(eventFd.get()));
-    ASSERT_TRUE(dupEventFd.isValid());
-    dupEventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-    dupEventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testCreateEpollFdAndAddSignaledEventFd) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-    eventFd.signal();
-
-    base::unique_fd epollFd(epoll_create(64));
-    ASSERT_GE(epollFd.get(), 0);
-
-    // Make sure that the epoll set has not been signal yet.
-    std::array<epoll_event, 1> events;
-    ASSERT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    // Check that adding an signaled fd into this epoll set will trigger the epoll set.
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testAddSignaledEventFdToEpollFd) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-
-    base::unique_fd epollFd(epoll_create(64));
-    ASSERT_GE(epollFd.get(), 0);
-
-    eventFd.signal();
-
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    std::array<epoll_event, 1> events;
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testConsecutiveSignalsFromAEventFd) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-    base::unique_fd epollFd(epoll_create(64));
-    ASSERT_GE(epollFd.get(), 0);
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    std::array<epoll_event, 1> events;
-    for (int i = 0; i < kTestRuns; ++i) {
-        eventFd.signal();
-        EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-        EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-    }
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testConsecutiveSignalsFromADuplicatedEventFd) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-    base::unique_fd epollFd(epoll_create(64));
-    ASSERT_GE(epollFd.get(), 0);
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    BufferHubEventFd dupEventFd(dup(eventFd.get()));
-    ASSERT_TRUE(dupEventFd.isValid());
-
-    std::array<epoll_event, 1> events;
-    for (int i = 0; i < kTestRuns; ++i) {
-        dupEventFd.signal();
-        EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-        EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-    }
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testClear) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-
-    base::unique_fd epollFd(epoll_create(64));
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-
-    ASSERT_GE(epollFd.get(), 0);
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    eventFd.signal();
-    eventFd.clear();
-
-    std::array<epoll_event, 1> events;
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testDupEventFd) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-
-    base::unique_fd epollFd(epoll_create(64));
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-
-    ASSERT_GE(epollFd.get(), 0);
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    // Technically, the dupliated eventFd and the original eventFd are pointing
-    // to the same kernel object. This test signals the duplicated eventFd but epolls the origianl
-    // eventFd.
-    BufferHubEventFd dupedEventFd(dup(eventFd.get()));
-    ASSERT_GE(dupedEventFd.get(), 0);
-
-    std::array<epoll_event, 1> events;
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    dupedEventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    dupedEventFd.signal();
-
-    dupedEventFd.clear();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testTwoEpollFds) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-
-    base::unique_fd epollFd1(epoll_create(64));
-    base::unique_fd epollFd2(epoll_create(64));
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-
-    ASSERT_GE(epollFd1.get(), 0);
-    ASSERT_GE(epollFd2.get(), 0);
-
-    // Register the same eventFd to two EpollFds.
-    ASSERT_EQ(epoll_ctl(epollFd1.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-    ASSERT_EQ(epoll_ctl(epollFd2.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    std::array<epoll_event, 1> events;
-    EXPECT_EQ(epoll_wait(epollFd1.get(), events.data(), events.size(), 0), 0);
-    EXPECT_EQ(epoll_wait(epollFd2.get(), events.data(), events.size(), 0), 0);
-
-    eventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd1.get(), events.data(), events.size(), 0), 1);
-    EXPECT_EQ(epoll_wait(epollFd2.get(), events.data(), events.size(), 0), 1);
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd1.get(), events.data(), events.size(), 0), 0);
-    EXPECT_EQ(epoll_wait(epollFd2.get(), events.data(), events.size(), 0), 0);
-
-    eventFd.signal();
-    EXPECT_EQ(epoll_wait(epollFd1.get(), events.data(), events.size(), 0), 1);
-
-    eventFd.clear();
-    EXPECT_EQ(epoll_wait(epollFd1.get(), events.data(), events.size(), 0), 0);
-    EXPECT_EQ(epoll_wait(epollFd2.get(), events.data(), events.size(), 0), 0);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testTwoEventFds) {
-    BufferHubEventFd eventFd1;
-    BufferHubEventFd eventFd2;
-
-    ASSERT_TRUE(eventFd1.isValid());
-    ASSERT_TRUE(eventFd2.isValid());
-
-    base::unique_fd epollFd(epoll_create(64));
-    epoll_event e1 = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 1}};
-    epoll_event e2 = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 2}};
-
-    ASSERT_GE(epollFd.get(), 0);
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd1.get(), &e1), 0);
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd2.get(), &e2), 0);
-
-    std::array<epoll_event, 2> events;
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    // Signal one by one.
-    eventFd1.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-    EXPECT_EQ(events[0].data.u32, e1.data.u32);
-
-    eventFd2.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-    EXPECT_EQ(events[0].data.u32, e2.data.u32);
-
-    // Signal both.
-    eventFd1.signal();
-    eventFd2.signal();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 2);
-
-    uint32_t u32s[] = {events[0].data.u32, events[1].data.u32};
-    EXPECT_THAT(u32s, Contains(e1.data.u32));
-    EXPECT_THAT(u32s, Contains(e2.data.u32));
-
-    // The epoll fd is edge triggered, so it only responds to the eventFd once.
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 0);
-
-    eventFd1.signal();
-    eventFd2.signal();
-    eventFd2.clear();
-    EXPECT_EQ(epoll_wait(epollFd.get(), events.data(), events.size(), 0), 1);
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testPollingThreadWithTwoEventFds) {
-    BufferHubEventFd eventFd1;
-    BufferHubEventFd eventFd2;
-
-    ASSERT_TRUE(eventFd1.isValid());
-    ASSERT_TRUE(eventFd2.isValid());
-
-    base::unique_fd epollFd(epoll_create(64));
-    epoll_event e1 = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 1}};
-    epoll_event e2 = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 2}};
-
-    ASSERT_GE(epollFd.get(), 0);
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd1.get(), &e1), 0);
-    ASSERT_EQ(epoll_ctl(epollFd.get(), EPOLL_CTL_ADD, eventFd2.get(), &e2), 0);
-
-    int countEvent1 = 0;
-    int countEvent2 = 0;
-    std::atomic<bool> stop{false};
-    std::mutex mx;
-    std::condition_variable cv;
-
-    std::thread pollingThread([&] {
-        std::array<epoll_event, 2> events;
-        while (true) {
-            if (stop.load()) {
-                break;
-            }
-            int ret = epoll_wait(epollFd.get(), events.data(), events.size(), kTimeout);
-            ALOGE_IF(ret < 0 && errno != ETIMEDOUT, "Epoll failed.");
-
-            std::lock_guard<std::mutex> lock(mx);
-            for (int i = 0; i < ret; i++) {
-                if (events[i].data.u32 == e1.data.u32) {
-                    countEvent1++;
-                    cv.notify_one();
-                } else if (events[i].data.u32 == e2.data.u32) {
-                    countEvent2++;
-                    cv.notify_one();
-                }
-            }
-        }
-    });
-
-    {
-        std::unique_lock<std::mutex> lock(mx);
-
-        eventFd1.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEvent1 == 1; }));
-
-        eventFd1.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEvent1 == 2; }));
-
-        eventFd2.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEvent2 == 1; }));
-
-        eventFd1.clear();
-        eventFd2.clear();
-        EXPECT_EQ(countEvent1, 2);
-        EXPECT_EQ(countEvent2, 1);
-
-        eventFd1.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEvent1 == 3; }));
-
-        eventFd2.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEvent2 == 2; }));
-    }
-
-    stop.store(true);
-    pollingThread.join();
-}
-
-TEST_F(BufferHubEventFdTest, EventFd_testTwoPollingThreads) {
-    BufferHubEventFd eventFd;
-    ASSERT_TRUE(eventFd.isValid());
-
-    base::unique_fd epollFd1(epoll_create(64));
-    base::unique_fd epollFd2(epoll_create(64));
-    epoll_event e = {.events = EPOLLIN | EPOLLET, .data = {.u32 = 0}};
-
-    ASSERT_GE(epollFd1.get(), 0);
-    ASSERT_GE(epollFd2.get(), 0);
-
-    // Register the same eventFd to two EpollFds.
-    ASSERT_EQ(epoll_ctl(epollFd1.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-    ASSERT_EQ(epoll_ctl(epollFd2.get(), EPOLL_CTL_ADD, eventFd.get(), &e), 0);
-
-    int countEpoll1 = 0;
-    int countEpoll2 = 0;
-    std::atomic<bool> stop{false};
-    std::mutex mx;
-    std::condition_variable cv;
-
-    std::thread pollingThread1([&] {
-        std::array<epoll_event, 1> events;
-        while (!stop.load()) {
-            int ret = epoll_wait(epollFd1.get(), events.data(), events.size(), kTimeout);
-            ALOGE_IF(ret < 0 && errno != ETIMEDOUT, "Epoll failed.");
-
-            if (ret > 0) {
-                std::lock_guard<std::mutex> lock(mx);
-                countEpoll1++;
-                cv.notify_one();
-            }
-        }
-    });
-
-    std::thread pollingThread2([&] {
-        std::array<epoll_event, 1> events;
-        while (!stop.load()) {
-            int ret = epoll_wait(epollFd2.get(), events.data(), events.size(), kTimeout);
-            ALOGE_IF(ret < 0 && errno != ETIMEDOUT, "Epoll failed.");
-
-            if (ret > 0) {
-                std::lock_guard<std::mutex> lock(mx);
-                countEpoll2++;
-                cv.notify_one();
-            }
-        }
-    });
-
-    {
-        std::unique_lock<std::mutex> lock(mx);
-
-        eventFd.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEpoll1 == 1; }));
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEpoll2 == 1; }));
-
-        eventFd.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEpoll1 == 2; }));
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEpoll2 == 2; }));
-
-        eventFd.clear();
-        EXPECT_EQ(countEpoll1, 2);
-        EXPECT_EQ(countEpoll2, 2);
-
-        eventFd.signal();
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEpoll1 == 3; }));
-        EXPECT_TRUE(cv.wait_for(lock, kTimeoutMs, [&] { return countEpoll2 == 3; }));
-    }
-
-    stop.store(true);
-    pollingThread1.join();
-    pollingThread2.join();
-}
-
-} // namespace android
diff --git a/libs/ui/tests/BufferHubMetadata_test.cpp b/libs/ui/tests/BufferHubMetadata_test.cpp
deleted file mode 100644
index eb978ca..0000000
--- a/libs/ui/tests/BufferHubMetadata_test.cpp
+++ /dev/null
@@ -1,98 +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.
- */
-
-#include <gtest/gtest.h>
-#include <ui/BufferHubMetadata.h>
-
-namespace android {
-namespace dvr {
-
-constexpr size_t kEmptyUserMetadataSize = 0;
-
-class BufferHubMetadataTest : public ::testing::Test {};
-
-TEST_F(BufferHubMetadataTest, Create_UserMetdataSizeTooBig) {
-    BufferHubMetadata m1 = BufferHubMetadata::create(std::numeric_limits<uint32_t>::max());
-    EXPECT_FALSE(m1.isValid());
-}
-
-TEST_F(BufferHubMetadataTest, Create_Success) {
-    BufferHubMetadata m1 = BufferHubMetadata::create(kEmptyUserMetadataSize);
-    EXPECT_TRUE(m1.isValid());
-    EXPECT_NE(m1.metadataHeader(), nullptr);
-}
-
-TEST_F(BufferHubMetadataTest, Import_Success) {
-    BufferHubMetadata m1 = BufferHubMetadata::create(kEmptyUserMetadataSize);
-    EXPECT_TRUE(m1.isValid());
-    EXPECT_NE(m1.metadataHeader(), nullptr);
-
-    unique_fd h2 = unique_fd(dup(m1.ashmemFd().get()));
-    EXPECT_NE(h2.get(), -1);
-
-    BufferHubMetadata m2 = BufferHubMetadata::import(std::move(h2));
-    EXPECT_EQ(h2.get(), -1);
-    EXPECT_TRUE(m1.isValid());
-    BufferHubDefs::MetadataHeader* mh1 = m1.metadataHeader();
-    EXPECT_NE(mh1, nullptr);
-
-    // Check if the newly allocated buffer is initialized in released state (i.e.
-    // state equals to 0U).
-    EXPECT_TRUE(mh1->bufferState.load() == 0U);
-
-    EXPECT_TRUE(m2.isValid());
-    BufferHubDefs::MetadataHeader* mh2 = m2.metadataHeader();
-    EXPECT_NE(mh2, nullptr);
-
-    // Check if the newly allocated buffer is initialized in released state (i.e.
-    // state equals to 0U).
-    EXPECT_TRUE(mh2->bufferState.load() == 0U);
-}
-
-TEST_F(BufferHubMetadataTest, MoveMetadataInvalidatesOldOne) {
-    BufferHubMetadata m1 = BufferHubMetadata::create(sizeof(int));
-    EXPECT_TRUE(m1.isValid());
-    EXPECT_NE(m1.metadataHeader(), nullptr);
-    EXPECT_NE(m1.ashmemFd().get(), -1);
-    EXPECT_EQ(m1.userMetadataSize(), sizeof(int));
-
-    BufferHubMetadata m2 = std::move(m1);
-
-    // After the move, the metadata header (a raw pointer) should be reset in the older buffer.
-    EXPECT_EQ(m1.metadataHeader(), nullptr);
-    EXPECT_NE(m2.metadataHeader(), nullptr);
-
-    EXPECT_EQ(m1.ashmemFd().get(), -1);
-    EXPECT_NE(m2.ashmemFd().get(), -1);
-
-    EXPECT_EQ(m1.userMetadataSize(), 0U);
-    EXPECT_EQ(m2.userMetadataSize(), sizeof(int));
-
-    BufferHubMetadata m3{std::move(m2)};
-
-    // After the move, the metadata header (a raw pointer) should be reset in the older buffer.
-    EXPECT_EQ(m2.metadataHeader(), nullptr);
-    EXPECT_NE(m3.metadataHeader(), nullptr);
-
-    EXPECT_EQ(m2.ashmemFd().get(), -1);
-    EXPECT_NE(m3.ashmemFd().get(), -1);
-
-    EXPECT_EQ(m2.userMetadataSize(), 0U);
-    EXPECT_EQ(m3.userMetadataSize(), sizeof(int));
-}
-
-}  // namespace dvr
-}  // namespace android
diff --git a/libs/ui/tests/GraphicBufferOverBinder_test.cpp b/libs/ui/tests/GraphicBufferOverBinder_test.cpp
index 7c0a44a..126a945 100644
--- a/libs/ui/tests/GraphicBufferOverBinder_test.cpp
+++ b/libs/ui/tests/GraphicBufferOverBinder_test.cpp
@@ -23,7 +23,6 @@
 #include <gui/BufferQueue.h>
 #include <gui/IGraphicBufferConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
-#include <ui/BufferHubBuffer.h>
 #include <ui/GraphicBuffer.h>
 #include <utils/Log.h>
 
@@ -37,7 +36,6 @@
 static const String16 kTestServiceName = String16("GraphicBufferOverBinderTestService");
 enum GraphicBufferOverBinderTestServiceCode {
     GRAPHIC_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
-    GRAPHIC_BUFFER_FROM_BUFFER_HUB_BUFFER,
 };
 
 class GraphicBufferOverBinderTestService : public BBinder {
@@ -46,21 +44,6 @@
         // GraphicBuffer
         mGraphicBuffer = new GraphicBuffer(kTestWidth, kTestHeight, kTestFormat, kTestLayerCount,
                                            kTestUsage);
-        ALOGI("mGraphicBuffer id %" PRIi32, mGraphicBuffer->getBufferId());
-
-        // BufferHub-backed GraphicBuffer
-        std::unique_ptr<BufferHubBuffer> bufferHubBuffer =
-                BufferHubBuffer::create(kTestWidth, kTestHeight, kTestLayerCount, kTestFormat,
-                                        kTestUsage, /*userMetadataSize=*/0);
-        mBufferhubBackedGraphicBuffer = new GraphicBuffer(std::move(bufferHubBuffer));
-        if (!mBufferhubBackedGraphicBuffer->isBufferHubBuffer()) {
-            ALOGE("Failed to back GraphicBuffer with BufferHub.");
-        }
-        if (bufferHubBuffer != nullptr) {
-            ALOGE("Failed to move BufferHubBuffer to GraphicBuffer");
-        }
-        ALOGI("mBufferhubBackedGraphicBuffer id %" PRIi32,
-              mBufferhubBackedGraphicBuffer->getBufferId());
     }
 
     ~GraphicBufferOverBinderTestService() = default;
@@ -71,9 +54,6 @@
             case GRAPHIC_BUFFER: {
                 return reply->write(*mGraphicBuffer);
             }
-            case GRAPHIC_BUFFER_FROM_BUFFER_HUB_BUFFER: {
-                return reply->write(*mBufferhubBackedGraphicBuffer);
-            }
             default:
                 return UNKNOWN_TRANSACTION;
         };
@@ -81,7 +61,6 @@
 
 protected:
     sp<GraphicBuffer> mGraphicBuffer;
-    sp<GraphicBuffer> mBufferhubBackedGraphicBuffer;
 };
 
 static int runBinderServer() {
@@ -138,17 +117,6 @@
     sp<GraphicBuffer> gb;
     EXPECT_EQ(GetGraphicBuffer(&gb, GRAPHIC_BUFFER), OK);
     EXPECT_NE(gb, nullptr);
-    EXPECT_FALSE(gb->isBufferHubBuffer());
-    void* vaddr;
-    EXPECT_EQ(gb->lock(kTestUsage, &vaddr), OK);
-    EXPECT_EQ(gb->unlock(), OK);
-}
-
-TEST_F(GraphicBufferOverBinderTest, SendGraphicBufferFromBufferHubBufferOverBinder) {
-    sp<GraphicBuffer> gb;
-    EXPECT_EQ(GetGraphicBuffer(&gb, GRAPHIC_BUFFER_FROM_BUFFER_HUB_BUFFER), NO_ERROR);
-    EXPECT_NE(gb, nullptr);
-    EXPECT_TRUE(gb->isBufferHubBuffer());
     void* vaddr;
     EXPECT_EQ(gb->lock(kTestUsage, &vaddr), OK);
     EXPECT_EQ(gb->unlock(), OK);
diff --git a/libs/ui/tests/GraphicBuffer_test.cpp b/libs/ui/tests/GraphicBuffer_test.cpp
index 5e0b094..19551b3 100644
--- a/libs/ui/tests/GraphicBuffer_test.cpp
+++ b/libs/ui/tests/GraphicBuffer_test.cpp
@@ -16,7 +16,6 @@
 
 #define LOG_TAG "GraphicBufferTest"
 
-#include <ui/BufferHubBuffer.h>
 #include <ui/GraphicBuffer.h>
 
 #include <gtest/gtest.h>
@@ -27,7 +26,6 @@
 
 constexpr uint32_t kTestWidth = 1024;
 constexpr uint32_t kTestHeight = 1;
-constexpr uint32_t kTestFormat = HAL_PIXEL_FORMAT_BLOB;
 constexpr uint32_t kTestLayerCount = 1;
 constexpr uint64_t kTestUsage = GraphicBuffer::USAGE_SW_WRITE_OFTEN;
 
@@ -68,88 +66,4 @@
     ASSERT_EQ(BAD_VALUE, gb2->initCheck());
 }
 
-TEST_F(GraphicBufferTest, CreateFromBufferHubBuffer) {
-    std::unique_ptr<BufferHubBuffer> b1 =
-            BufferHubBuffer::create(kTestWidth, kTestHeight, kTestLayerCount, kTestFormat,
-                                    kTestUsage, /*userMetadataSize=*/0);
-    ASSERT_NE(b1, nullptr);
-    EXPECT_TRUE(b1->isValid());
-
-    sp<GraphicBuffer> gb(new GraphicBuffer(std::move(b1)));
-    EXPECT_TRUE(gb->isBufferHubBuffer());
-
-    EXPECT_EQ(gb->getWidth(), kTestWidth);
-    EXPECT_EQ(gb->getHeight(), kTestHeight);
-    EXPECT_EQ(static_cast<uint32_t>(gb->getPixelFormat()), kTestFormat);
-    EXPECT_EQ(gb->getUsage(), kTestUsage);
-    EXPECT_EQ(gb->getLayerCount(), kTestLayerCount);
-}
-
-TEST_F(GraphicBufferTest, InvalidBufferIdForNoneBufferHubBuffer) {
-    sp<GraphicBuffer> gb(
-            new GraphicBuffer(kTestWidth, kTestHeight, kTestFormat, kTestLayerCount, kTestUsage));
-    EXPECT_FALSE(gb->isBufferHubBuffer());
-    EXPECT_EQ(gb->getBufferId(), -1);
-}
-
-TEST_F(GraphicBufferTest, BufferIdMatchesBufferHubBufferId) {
-    std::unique_ptr<BufferHubBuffer> b1 =
-            BufferHubBuffer::create(kTestWidth, kTestHeight, kTestLayerCount, kTestFormat,
-                                    kTestUsage, /*userMetadataSize=*/0);
-    EXPECT_NE(b1, nullptr);
-    EXPECT_TRUE(b1->isValid());
-
-    int b1_id = b1->id();
-    EXPECT_GE(b1_id, 0);
-
-    sp<GraphicBuffer> gb(new GraphicBuffer(std::move(b1)));
-    EXPECT_TRUE(gb->isBufferHubBuffer());
-    EXPECT_EQ(gb->getBufferId(), b1_id);
-}
-
-TEST_F(GraphicBufferTest, flattenAndUnflatten) {
-    std::unique_ptr<BufferHubBuffer> b1 =
-            BufferHubBuffer::create(kTestWidth, kTestHeight, kTestLayerCount, kTestFormat,
-                                    kTestUsage, /*userMetadataSize=*/0);
-    ASSERT_NE(b1, nullptr);
-    sp<GraphicBuffer> gb1(new GraphicBuffer(std::move(b1)));
-    gb1->setGenerationNumber(42);
-
-    size_t flattenedSize = gb1->getFlattenedSize();
-    EXPECT_EQ(flattenedSize, 48);
-    size_t fdCount = gb1->getFdCount();
-    EXPECT_EQ(fdCount, 0);
-
-    int data[flattenedSize];
-    int fds[0];
-
-    // Make copies of needed items since flatten modifies them.
-    size_t flattenedSizeCopy = flattenedSize;
-    size_t fdCountCopy = fdCount;
-    void* dataStart = data;
-    int* fdsStart = fds;
-    status_t err = gb1->flatten(dataStart, flattenedSizeCopy, fdsStart, fdCountCopy);
-    ASSERT_EQ(err, NO_ERROR);
-    EXPECT_EQ(flattenedSizeCopy, 0);
-    EXPECT_EQ(fdCountCopy, 0);
-
-    size_t unflattenSize = flattenedSize;
-    size_t unflattenFdCount = fdCount;
-    const void* unflattenData = static_cast<const void*>(dataStart);
-    const int* unflattenFdData = static_cast<const int*>(fdsStart);
-
-    GraphicBuffer* gb2 = new GraphicBuffer();
-    err = gb2->unflatten(unflattenData, unflattenSize, unflattenFdData, unflattenFdCount);
-    ASSERT_EQ(err, NO_ERROR);
-    EXPECT_TRUE(gb2->isBufferHubBuffer());
-
-    EXPECT_EQ(gb2->getWidth(), kTestWidth);
-    EXPECT_EQ(gb2->getHeight(), kTestHeight);
-    EXPECT_EQ(static_cast<uint32_t>(gb2->getPixelFormat()), kTestFormat);
-    EXPECT_EQ(gb2->getUsage(), kTestUsage);
-    EXPECT_EQ(gb2->getLayerCount(), kTestLayerCount);
-    EXPECT_EQ(gb1->getBufferId(), gb2->getBufferId());
-    EXPECT_EQ(gb2->getGenerationNumber(), 42);
-}
-
 } // namespace android
diff --git a/libs/vr/libpdx_uds/service_endpoint.cpp b/libs/vr/libpdx_uds/service_endpoint.cpp
index ecbfdba..9bc70ea 100644
--- a/libs/vr/libpdx_uds/service_endpoint.cpp
+++ b/libs/vr/libpdx_uds/service_endpoint.cpp
@@ -535,13 +535,13 @@
   *message = Message{info};
   auto* state = static_cast<MessageState*>(message->GetState());
   state->request = std::move(request);
-  if (request.send_len > 0 && !request.is_impulse) {
-    state->request_data.resize(request.send_len);
+  if (state->request.send_len > 0 && !state->request.is_impulse) {
+    state->request_data.resize(state->request.send_len);
     status = ReceiveData(channel_fd, state->request_data.data(),
                          state->request_data.size());
   }
 
-  if (status && request.is_impulse)
+  if (status && state->request.is_impulse)
     status = ReenableEpollEvent(channel_fd);
 
   if (!status) {
diff --git a/services/bufferhub/Android.bp b/services/bufferhub/Android.bp
deleted file mode 100644
index 2bb6aef..0000000
--- a/services/bufferhub/Android.bp
+++ /dev/null
@@ -1,77 +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.
-//
-
-cc_library_shared {
-    name: "libbufferhubservice",
-    cflags: [
-        "-DLOG_TAG=\"libbufferhubservice\"",
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
-    srcs: [
-        "BufferClient.cpp",
-        "BufferHubIdGenerator.cpp",
-        "BufferHubService.cpp",
-        "BufferNode.cpp",
-    ],
-    header_libs: [
-        "libdvr_headers",
-        "libnativewindow_headers",
-    ],
-    shared_libs: [
-        "android.frameworks.bufferhub@1.0",
-        "libcrypto",
-        "libcutils",
-        "libhidlbase",
-        "liblog",
-        "libui",
-        "libutils",
-    ],
-    export_include_dirs: [
-        "include"
-    ],
-}
-
-cc_binary {
-    name: "android.frameworks.bufferhub@1.0-service",
-    relative_install_path: "hw",
-    srcs: [
-        "main_bufferhub.cpp"
-    ],
-    header_libs: [
-        "libdvr_headers",
-        "libnativewindow_headers",
-    ],
-    shared_libs: [
-        "android.frameworks.bufferhub@1.0",
-        "libbufferhubservice",
-        "libcrypto",
-        "libcutils",
-        "libhidlbase",
-        "liblog",
-        "libui",
-        "libutils",
-    ],
-    cflags: [
-        "-DLOG_TAG=\"bufferhub\"",
-        "-Wall",
-        "-Werror",
-        "-Wextra",
-    ],
-    init_rc: ["android.frameworks.bufferhub@1.0-service.rc"],
-    vintf_fragments: ["android.frameworks.bufferhub@1.0-service.xml"],
-}
diff --git a/services/bufferhub/BufferClient.cpp b/services/bufferhub/BufferClient.cpp
deleted file mode 100644
index ec7e535..0000000
--- a/services/bufferhub/BufferClient.cpp
+++ /dev/null
@@ -1,100 +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.
- */
-
-#include <bufferhub/BufferClient.h>
-#include <bufferhub/BufferHubService.h>
-#include <hidl/HidlSupport.h>
-#include <log/log.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-using hardware::hidl_handle;
-using hardware::Void;
-
-BufferClient* BufferClient::create(BufferHubService* service,
-                                   const std::shared_ptr<BufferNode>& node) {
-    if (!service) {
-        ALOGE("%s: service cannot be nullptr.", __FUNCTION__);
-        return nullptr;
-    } else if (!node) {
-        ALOGE("%s: node cannot be nullptr.", __FUNCTION__);
-        return nullptr;
-    }
-    return new BufferClient(service, node);
-}
-
-BufferClient::~BufferClient() {
-    {
-        std::lock_guard<std::mutex> lock(mClosedMutex);
-        if (!mClosed) {
-            ALOGW("%s: client of buffer #%d destroyed without close. Closing it now.", __FUNCTION__,
-                  mBufferNode->id());
-        }
-    }
-
-    close();
-}
-
-Return<BufferHubStatus> BufferClient::close() {
-    std::lock_guard<std::mutex> lock(mClosedMutex);
-    if (mClosed) {
-        return BufferHubStatus::CLIENT_CLOSED;
-    }
-
-    getService()->onClientClosed(this);
-    mBufferNode.reset();
-    mClosed = true;
-    return BufferHubStatus::NO_ERROR;
-}
-
-Return<void> BufferClient::duplicate(duplicate_cb _hidl_cb) {
-    std::lock_guard<std::mutex> lock(mClosedMutex);
-    if (mClosed) {
-        _hidl_cb(/*token=*/hidl_handle(), /*status=*/BufferHubStatus::CLIENT_CLOSED);
-        return Void();
-    }
-
-    if (!mBufferNode) {
-        // Should never happen
-        ALOGE("%s: node is missing.", __FUNCTION__);
-        _hidl_cb(/*token=*/hidl_handle(), /*status=*/BufferHubStatus::BUFFER_FREED);
-        return Void();
-    }
-
-    const hidl_handle token = getService()->registerToken(this);
-    _hidl_cb(/*token=*/token, /*status=*/BufferHubStatus::NO_ERROR);
-    return Void();
-}
-
-sp<BufferHubService> BufferClient::getService() {
-    sp<BufferHubService> service = mService.promote();
-    if (service == nullptr) {
-        // Should never happen. Kill the process.
-        LOG_FATAL("%s: service died.", __FUNCTION__);
-    }
-
-    return service;
-}
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
\ No newline at end of file
diff --git a/services/bufferhub/BufferHubIdGenerator.cpp b/services/bufferhub/BufferHubIdGenerator.cpp
deleted file mode 100644
index 2c12f0e..0000000
--- a/services/bufferhub/BufferHubIdGenerator.cpp
+++ /dev/null
@@ -1,59 +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.
- */
-
-#include <bufferhub/BufferHubIdGenerator.h>
-#include <log/log.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-BufferHubIdGenerator& BufferHubIdGenerator::getInstance() {
-    static BufferHubIdGenerator generator;
-
-    return generator;
-}
-
-int BufferHubIdGenerator::getId() {
-    std::lock_guard<std::mutex> lock(mIdsInUseMutex);
-
-    do {
-        if (++mLastId >= std::numeric_limits<int>::max()) {
-            mLastId = 0;
-        }
-    } while (mIdsInUse.find(mLastId) != mIdsInUse.end());
-
-    mIdsInUse.insert(mLastId);
-    return mLastId;
-}
-
-void BufferHubIdGenerator::freeId(int id) {
-    std::lock_guard<std::mutex> lock(mIdsInUseMutex);
-    auto iter = mIdsInUse.find(id);
-    if (iter != mIdsInUse.end()) {
-        mIdsInUse.erase(iter);
-    } else {
-        ALOGW("%s: Cannot free nonexistent id #%d", __FUNCTION__, id);
-    }
-}
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
diff --git a/services/bufferhub/BufferHubService.cpp b/services/bufferhub/BufferHubService.cpp
deleted file mode 100644
index 7a3472f..0000000
--- a/services/bufferhub/BufferHubService.cpp
+++ /dev/null
@@ -1,401 +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.
- */
-
-#include <array>
-#include <iomanip>
-#include <random>
-#include <sstream>
-
-#include <android/hardware_buffer.h>
-#include <bufferhub/BufferHubService.h>
-#include <cutils/native_handle.h>
-#include <log/log.h>
-#include <openssl/hmac.h>
-#include <system/graphics-base.h>
-#include <ui/BufferHubDefs.h>
-
-using ::android::BufferHubDefs::MetadataHeader;
-using ::android::hardware::Void;
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-BufferHubService::BufferHubService() {
-    std::mt19937_64 randomEngine;
-    randomEngine.seed(time(nullptr));
-
-    mKey = randomEngine();
-}
-
-Return<void> BufferHubService::allocateBuffer(const HardwareBufferDescription& description,
-                                              const uint32_t userMetadataSize,
-                                              allocateBuffer_cb _hidl_cb) {
-    AHardwareBuffer_Desc desc;
-    memcpy(&desc, &description, sizeof(AHardwareBuffer_Desc));
-
-    std::shared_ptr<BufferNode> node =
-            std::make_shared<BufferNode>(desc.width, desc.height, desc.layers, desc.format,
-                                         desc.usage, userMetadataSize,
-                                         BufferHubIdGenerator::getInstance().getId());
-    if (node == nullptr || !node->isValid()) {
-        ALOGE("%s: creating BufferNode failed.", __FUNCTION__);
-        _hidl_cb(/*status=*/BufferHubStatus::ALLOCATION_FAILED, /*bufferClient=*/nullptr,
-                 /*bufferTraits=*/{});
-        return Void();
-    }
-
-    sp<BufferClient> client = BufferClient::create(this, node);
-    // Add it to list for bookkeeping and dumpsys.
-    std::lock_guard<std::mutex> lock(mClientSetMutex);
-    mClientSet.emplace(client);
-
-    // Allocate memory for bufferInfo of type hidl_handle on the stack. See
-    // http://aosp/286282 for the usage of NATIVE_HANDLE_DECLARE_STORAGE.
-    NATIVE_HANDLE_DECLARE_STORAGE(bufferInfoStorage, BufferHubDefs::kBufferInfoNumFds,
-                                  BufferHubDefs::kBufferInfoNumInts);
-    hidl_handle bufferInfo =
-            buildBufferInfo(bufferInfoStorage, node->id(), node->addNewActiveClientsBitToMask(),
-                            node->userMetadataSize(), node->metadata().ashmemFd(),
-                            node->eventFd().get());
-    // During the gralloc allocation carried out by BufferNode, gralloc allocator will populate the
-    // fields of its HardwareBufferDescription (i.e. strides) according to the actual
-    // gralloc implementation. We need to read those fields back and send them to the client via
-    // BufferTraits.
-    HardwareBufferDescription allocatedBufferDesc;
-    memcpy(&allocatedBufferDesc, &node->bufferDesc(), sizeof(AHardwareBuffer_Desc));
-    BufferTraits bufferTraits = {/*bufferDesc=*/allocatedBufferDesc,
-                                 /*bufferHandle=*/hidl_handle(node->bufferHandle()),
-                                 /*bufferInfo=*/std::move(bufferInfo)};
-
-    _hidl_cb(/*status=*/BufferHubStatus::NO_ERROR, /*bufferClient=*/client,
-             /*bufferTraits=*/std::move(bufferTraits));
-    return Void();
-}
-
-Return<void> BufferHubService::importBuffer(const hidl_handle& tokenHandle,
-                                            importBuffer_cb _hidl_cb) {
-    if (!tokenHandle.getNativeHandle() || tokenHandle->numFds != 0 || tokenHandle->numInts <= 1) {
-        // nullptr handle or wrong format
-        _hidl_cb(/*status=*/BufferHubStatus::INVALID_TOKEN, /*bufferClient=*/nullptr,
-                 /*bufferTraits=*/{});
-        return Void();
-    }
-
-    int tokenId = tokenHandle->data[0];
-
-    wp<BufferClient> originClientWp;
-    {
-        std::lock_guard<std::mutex> lock(mTokenMutex);
-        auto iter = mTokenMap.find(tokenId);
-        if (iter == mTokenMap.end()) {
-            // Token Id not exist
-            ALOGD("%s: token #%d not found.", __FUNCTION__, tokenId);
-            _hidl_cb(/*status=*/BufferHubStatus::INVALID_TOKEN, /*bufferClient=*/nullptr,
-                     /*bufferTraits=*/{});
-            return Void();
-        }
-
-        const std::vector<uint8_t>& tokenHMAC = iter->second.first;
-
-        int numIntsForHMAC = (int)ceil(tokenHMAC.size() * sizeof(uint8_t) / (double)sizeof(int));
-        if (tokenHandle->numInts - 1 != numIntsForHMAC) {
-            // HMAC size not match
-            ALOGD("%s: token #%d HMAC size not match. Expected: %d Actual: %d", __FUNCTION__,
-                  tokenId, numIntsForHMAC, tokenHandle->numInts - 1);
-            _hidl_cb(/*status=*/BufferHubStatus::INVALID_TOKEN, /*bufferClient=*/nullptr,
-                     /*bufferTraits=*/{});
-            return Void();
-        }
-
-        size_t hmacSize = tokenHMAC.size() * sizeof(uint8_t);
-        if (memcmp(tokenHMAC.data(), &tokenHandle->data[1], hmacSize) != 0) {
-            // HMAC not match
-            ALOGD("%s: token #%d HMAC not match.", __FUNCTION__, tokenId);
-            _hidl_cb(/*status=*/BufferHubStatus::INVALID_TOKEN, /*bufferClient=*/nullptr,
-                     /*bufferTraits=*/{});
-            return Void();
-        }
-
-        originClientWp = iter->second.second;
-        mTokenMap.erase(iter);
-    }
-
-    // Check if original client is dead
-    sp<BufferClient> originClient = originClientWp.promote();
-    if (!originClient) {
-        // Should not happen since token should be removed if already gone
-        ALOGE("%s: original client %p gone!", __FUNCTION__, originClientWp.unsafe_get());
-        _hidl_cb(/*status=*/BufferHubStatus::BUFFER_FREED, /*bufferClient=*/nullptr,
-                 /*bufferTraits=*/{});
-        return Void();
-    }
-
-    sp<BufferClient> client = new BufferClient(*originClient);
-    uint32_t clientStateMask = client->getBufferNode()->addNewActiveClientsBitToMask();
-    if (clientStateMask == 0U) {
-        // Reach max client count
-        ALOGE("%s: import failed, BufferNode#%u reached maximum clients.", __FUNCTION__,
-              client->getBufferNode()->id());
-        _hidl_cb(/*status=*/BufferHubStatus::MAX_CLIENT, /*bufferClient=*/nullptr,
-                 /*bufferTraits=*/{});
-        return Void();
-    }
-
-    std::lock_guard<std::mutex> lock(mClientSetMutex);
-    mClientSet.emplace(client);
-
-    std::shared_ptr<BufferNode> node = client->getBufferNode();
-
-    HardwareBufferDescription bufferDesc;
-    memcpy(&bufferDesc, &node->bufferDesc(), sizeof(HardwareBufferDescription));
-
-    // Allocate memory for bufferInfo of type hidl_handle on the stack. See
-    // http://aosp/286282 for the usage of NATIVE_HANDLE_DECLARE_STORAGE.
-    NATIVE_HANDLE_DECLARE_STORAGE(bufferInfoStorage, BufferHubDefs::kBufferInfoNumFds,
-                                  BufferHubDefs::kBufferInfoNumInts);
-    hidl_handle bufferInfo = buildBufferInfo(bufferInfoStorage, node->id(), clientStateMask,
-                                             node->userMetadataSize(), node->metadata().ashmemFd(),
-                                             node->eventFd().get());
-    BufferTraits bufferTraits = {/*bufferDesc=*/bufferDesc,
-                                 /*bufferHandle=*/hidl_handle(node->bufferHandle()),
-                                 /*bufferInfo=*/std::move(bufferInfo)};
-
-    _hidl_cb(/*status=*/BufferHubStatus::NO_ERROR, /*bufferClient=*/client,
-             /*bufferTraits=*/std::move(bufferTraits));
-    return Void();
-}
-
-Return<void> BufferHubService::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) {
-    if (fd.getNativeHandle() == nullptr || fd->numFds < 1) {
-        ALOGE("%s: missing fd for writing.", __FUNCTION__);
-        return Void();
-    }
-
-    FILE* out = fdopen(dup(fd->data[0]), "w");
-
-    if (args.size() != 0) {
-        fprintf(out,
-                "Note: lshal bufferhub currently does not support args. Input arguments are "
-                "ignored.\n");
-    }
-
-    std::ostringstream stream;
-
-    // Get the number of clients of each buffer.
-    // Map from bufferId to bufferNode_clientCount pair.
-    std::map<int, std::pair<const std::shared_ptr<BufferNode>, uint32_t>> clientCount;
-    {
-        std::lock_guard<std::mutex> lock(mClientSetMutex);
-        for (auto iter = mClientSet.begin(); iter != mClientSet.end(); ++iter) {
-            sp<BufferClient> client = iter->promote();
-            if (client != nullptr) {
-                const std::shared_ptr<BufferNode> node = client->getBufferNode();
-                auto mapIter = clientCount.find(node->id());
-                if (mapIter != clientCount.end()) {
-                    ++mapIter->second.second;
-                } else {
-                    clientCount.emplace(node->id(),
-                                        std::pair<std::shared_ptr<BufferNode>, uint32_t>(node, 1U));
-                }
-            }
-        }
-    }
-
-    stream << "Active Buffers:\n";
-    stream << std::right;
-    stream << std::setw(6) << "Id";
-    stream << " ";
-    stream << std::setw(9) << "#Clients";
-    stream << " ";
-    stream << std::setw(14) << "Geometry";
-    stream << " ";
-    stream << std::setw(6) << "Format";
-    stream << " ";
-    stream << std::setw(10) << "Usage";
-    stream << " ";
-    stream << std::setw(10) << "State";
-    stream << " ";
-    stream << std::setw(8) << "Index";
-    stream << std::endl;
-
-    for (auto iter = clientCount.begin(); iter != clientCount.end(); ++iter) {
-        const std::shared_ptr<BufferNode> node = std::move(iter->second.first);
-        const uint32_t clientCount = iter->second.second;
-        AHardwareBuffer_Desc desc = node->bufferDesc();
-
-        MetadataHeader* metadataHeader =
-                const_cast<BufferHubMetadata*>(&node->metadata())->metadataHeader();
-        const uint32_t state = metadataHeader->bufferState.load(std::memory_order_acquire);
-        const uint64_t index = metadataHeader->queueIndex;
-
-        stream << std::right;
-        stream << std::setw(6) << /*Id=*/node->id();
-        stream << " ";
-        stream << std::setw(9) << /*#Clients=*/clientCount;
-        stream << " ";
-        if (desc.format == HAL_PIXEL_FORMAT_BLOB) {
-            std::string size = std::to_string(desc.width) + " B";
-            stream << std::setw(14) << /*Geometry=*/size;
-        } else {
-            std::string dimensions = std::to_string(desc.width) + "x" +
-                    std::to_string(desc.height) + "x" + std::to_string(desc.layers);
-            stream << std::setw(14) << /*Geometry=*/dimensions;
-        }
-        stream << " ";
-        stream << std::setw(6) << /*Format=*/desc.format;
-        stream << " ";
-        stream << "0x" << std::hex << std::setfill('0');
-        stream << std::setw(8) << /*Usage=*/desc.usage;
-        stream << std::dec << std::setfill(' ');
-        stream << " ";
-        stream << "0x" << std::hex << std::setfill('0');
-        stream << std::setw(8) << /*State=*/state;
-        stream << std::dec << std::setfill(' ');
-        stream << " ";
-        stream << std::setw(8) << /*Index=*/index;
-        stream << std::endl;
-    }
-
-    stream << std::endl;
-
-    // Get the number of tokens of each buffer.
-    // Map from bufferId to tokenCount
-    std::map<int, uint32_t> tokenCount;
-    {
-        std::lock_guard<std::mutex> lock(mTokenMutex);
-        for (auto iter = mTokenMap.begin(); iter != mTokenMap.end(); ++iter) {
-            sp<BufferClient> client = iter->second.second.promote();
-            if (client != nullptr) {
-                const std::shared_ptr<BufferNode> node = client->getBufferNode();
-                auto mapIter = tokenCount.find(node->id());
-                if (mapIter != tokenCount.end()) {
-                    ++mapIter->second;
-                } else {
-                    tokenCount.emplace(node->id(), 1U);
-                }
-            }
-        }
-    }
-
-    stream << "Unused Tokens:\n";
-    stream << std::right;
-    stream << std::setw(8) << "Buffer Id";
-    stream << " ";
-    stream << std::setw(7) << "#Tokens";
-    stream << std::endl;
-
-    for (auto iter = tokenCount.begin(); iter != tokenCount.end(); ++iter) {
-        stream << std::right;
-        stream << std::setw(8) << /*Buffer Id=*/iter->first;
-        stream << " ";
-        stream << std::setw(7) << /*#Tokens=*/iter->second;
-        stream << std::endl;
-    }
-
-    fprintf(out, "%s", stream.str().c_str());
-
-    fclose(out);
-    return Void();
-}
-
-hidl_handle BufferHubService::registerToken(const wp<BufferClient>& client) {
-    // Find next available token id
-    std::lock_guard<std::mutex> lock(mTokenMutex);
-    do {
-        ++mLastTokenId;
-    } while (mTokenMap.find(mLastTokenId) != mTokenMap.end());
-
-    std::array<uint8_t, EVP_MAX_MD_SIZE> hmac;
-    uint32_t hmacSize = 0U;
-
-    HMAC(/*evp_md=*/EVP_sha256(), /*key=*/&mKey, /*key_len=*/kKeyLen,
-         /*data=*/(uint8_t*)&mLastTokenId, /*data_len=*/mTokenIdSize,
-         /*out=*/hmac.data(), /*out_len=*/&hmacSize);
-
-    int numIntsForHMAC = (int)ceil(hmacSize / (double)sizeof(int));
-    native_handle_t* handle = native_handle_create(/*numFds=*/0, /*numInts=*/1 + numIntsForHMAC);
-    handle->data[0] = mLastTokenId;
-    // Set all the the bits of last int to 0 since it might not be fully overwritten
-    handle->data[numIntsForHMAC] = 0;
-    memcpy(&handle->data[1], hmac.data(), hmacSize);
-
-    // returnToken owns the native_handle_t* thus doing lifecycle management
-    hidl_handle returnToken;
-    returnToken.setTo(handle, /*shoudOwn=*/true);
-
-    std::vector<uint8_t> hmacVec;
-    hmacVec.resize(hmacSize);
-    memcpy(hmacVec.data(), hmac.data(), hmacSize);
-    mTokenMap.emplace(mLastTokenId, std::pair(hmacVec, client));
-
-    return returnToken;
-}
-
-void BufferHubService::onClientClosed(const BufferClient* client) {
-    removeTokenByClient(client);
-
-    std::lock_guard<std::mutex> lock(mClientSetMutex);
-    auto iter = std::find(mClientSet.begin(), mClientSet.end(), client);
-    if (iter != mClientSet.end()) {
-        mClientSet.erase(iter);
-    }
-}
-
-// Implementation of this function should be consistent with the definition of bufferInfo handle in
-// ui/BufferHubDefs.h.
-hidl_handle BufferHubService::buildBufferInfo(char* bufferInfoStorage, int bufferId,
-                                              uint32_t clientBitMask, uint32_t userMetadataSize,
-                                              int metadataFd, int eventFd) {
-    native_handle_t* infoHandle =
-            native_handle_init(bufferInfoStorage, BufferHubDefs::kBufferInfoNumFds,
-                               BufferHubDefs::kBufferInfoNumInts);
-
-    infoHandle->data[0] = metadataFd;
-    infoHandle->data[1] = eventFd;
-    infoHandle->data[2] = bufferId;
-    // Use memcpy to convert to int without missing digit.
-    // TOOD(b/121345852): use bit_cast to unpack bufferInfo when C++20 becomes available.
-    memcpy(&infoHandle->data[3], &clientBitMask, sizeof(clientBitMask));
-    memcpy(&infoHandle->data[4], &userMetadataSize, sizeof(userMetadataSize));
-
-    hidl_handle bufferInfo;
-    bufferInfo.setTo(infoHandle, /*shouldOwn=*/false);
-
-    return bufferInfo;
-}
-
-void BufferHubService::removeTokenByClient(const BufferClient* client) {
-    std::lock_guard<std::mutex> lock(mTokenMutex);
-    auto iter = mTokenMap.begin();
-    while (iter != mTokenMap.end()) {
-        if (iter->second.second == client) {
-            auto oldIter = iter;
-            ++iter;
-            mTokenMap.erase(oldIter);
-        } else {
-            ++iter;
-        }
-    }
-}
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
diff --git a/services/bufferhub/BufferNode.cpp b/services/bufferhub/BufferNode.cpp
deleted file mode 100644
index 04ca649..0000000
--- a/services/bufferhub/BufferNode.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-#include <errno.h>
-
-#include <bufferhub/BufferHubService.h>
-#include <bufferhub/BufferNode.h>
-#include <log/log.h>
-#include <ui/GraphicBufferAllocator.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-void BufferNode::initializeMetadata() {
-    // Using placement new here to reuse shared memory instead of new allocation
-    // Initialize the atomic variables to zero.
-    BufferHubDefs::MetadataHeader* metadataHeader = mMetadata.metadataHeader();
-    mBufferState = new (&metadataHeader->bufferState) std::atomic<uint32_t>(0);
-    mFenceState = new (&metadataHeader->fenceState) std::atomic<uint32_t>(0);
-    mActiveClientsBitMask = new (&metadataHeader->activeClientsBitMask) std::atomic<uint32_t>(0);
-    // The C++ standard recommends (but does not require) that lock-free atomic operations are
-    // also address-free, that is, suitable for communication between processes using shared
-    // memory.
-    LOG_ALWAYS_FATAL_IF(!std::atomic_is_lock_free(mBufferState) ||
-                                !std::atomic_is_lock_free(mFenceState) ||
-                                !std::atomic_is_lock_free(mActiveClientsBitMask),
-                        "Atomic variables in ashmen are not lock free.");
-}
-
-// Allocates a new BufferNode.
-BufferNode::BufferNode(uint32_t width, uint32_t height, uint32_t layerCount, uint32_t format,
-                       uint64_t usage, size_t userMetadataSize, int id)
-      : mId(id) {
-    uint32_t outStride = 0;
-    // graphicBufferId is not used in GraphicBufferAllocator::allocate
-    // TODO(b/112338294) After move to the service folder, stop using the
-    // hardcoded service name "bufferhub".
-    int ret = GraphicBufferAllocator::get().allocate(width, height, format, layerCount, usage,
-                                                     const_cast<const native_handle_t**>(
-                                                             &mBufferHandle),
-                                                     &outStride,
-                                                     /*graphicBufferId=*/0,
-                                                     /*requestor=*/"bufferhub");
-
-    if (ret != OK || mBufferHandle == nullptr) {
-        ALOGE("%s: Failed to allocate buffer: %s", __FUNCTION__, strerror(-ret));
-        return;
-    }
-
-    mBufferDesc.width = width;
-    mBufferDesc.height = height;
-    mBufferDesc.layers = layerCount;
-    mBufferDesc.format = format;
-    mBufferDesc.usage = usage;
-    mBufferDesc.stride = outStride;
-
-    mMetadata = BufferHubMetadata::create(userMetadataSize);
-    if (!mMetadata.isValid()) {
-        ALOGE("%s: Failed to allocate metadata.", __FUNCTION__);
-        return;
-    }
-    initializeMetadata();
-}
-
-BufferNode::~BufferNode() {
-    // Free the handle
-    if (mBufferHandle != nullptr) {
-        status_t ret = GraphicBufferAllocator::get().free(mBufferHandle);
-        if (ret != OK) {
-            ALOGE("%s: Failed to free handle; Got error: %d", __FUNCTION__, ret);
-        }
-    }
-
-    // Free the id, if valid
-    if (mId >= 0) {
-        BufferHubIdGenerator::getInstance().freeId(mId);
-    }
-}
-
-uint32_t BufferNode::getActiveClientsBitMask() const {
-    return mActiveClientsBitMask->load(std::memory_order_acquire);
-}
-
-uint32_t BufferNode::addNewActiveClientsBitToMask() {
-    uint32_t currentActiveClientsBitMask = getActiveClientsBitMask();
-    uint32_t clientStateMask = 0U;
-    uint32_t updatedActiveClientsBitMask = 0U;
-    do {
-        clientStateMask =
-                BufferHubDefs::findNextAvailableClientStateMask(currentActiveClientsBitMask);
-        if (clientStateMask == 0U) {
-            ALOGE("%s: reached the maximum number of channels per buffer node: %d.", __FUNCTION__,
-                  BufferHubDefs::kMaxNumberOfClients);
-            errno = E2BIG;
-            return 0U;
-        }
-        updatedActiveClientsBitMask = currentActiveClientsBitMask | clientStateMask;
-    } while (!(mActiveClientsBitMask->compare_exchange_weak(currentActiveClientsBitMask,
-                                                            updatedActiveClientsBitMask,
-                                                            std::memory_order_acq_rel,
-                                                            std::memory_order_acquire)));
-    return clientStateMask;
-}
-
-void BufferNode::removeClientsBitFromMask(const uint32_t& value) {
-    mActiveClientsBitMask->fetch_and(~value);
-}
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
diff --git a/services/bufferhub/android.frameworks.bufferhub@1.0-service.rc b/services/bufferhub/android.frameworks.bufferhub@1.0-service.rc
deleted file mode 100644
index 36fbede..0000000
--- a/services/bufferhub/android.frameworks.bufferhub@1.0-service.rc
+++ /dev/null
@@ -1,6 +0,0 @@
-service system_bufferhub /system/bin/hw/android.frameworks.bufferhub@1.0-service
-  class hal animation
-  user system
-  group system graphics
-  onrestart restart surfaceflinger
-  writepid /dev/cpuset/system-background/tasks
diff --git a/services/bufferhub/android.frameworks.bufferhub@1.0-service.xml b/services/bufferhub/android.frameworks.bufferhub@1.0-service.xml
deleted file mode 100644
index bd958d3..0000000
--- a/services/bufferhub/android.frameworks.bufferhub@1.0-service.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<manifest version="1.0" type="framework">
-    <hal>
-        <name>android.frameworks.bufferhub</name>
-        <transport>hwbinder</transport>
-        <version>1.0</version>
-        <interface>
-            <name>IBufferHub</name>
-            <instance>default</instance>
-        </interface>
-    </hal>
-</manifest>
diff --git a/services/bufferhub/include/bufferhub/BufferClient.h b/services/bufferhub/include/bufferhub/BufferClient.h
deleted file mode 100644
index 644b403..0000000
--- a/services/bufferhub/include/bufferhub/BufferClient.h
+++ /dev/null
@@ -1,75 +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.
- */
-
-#ifndef ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_CLIENT_H
-#define ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_CLIENT_H
-
-#include <mutex>
-
-#include <android/frameworks/bufferhub/1.0/IBufferClient.h>
-#include <bufferhub/BufferNode.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-using hardware::hidl_handle;
-using hardware::Return;
-
-// Forward declaration to avoid circular dependency
-class BufferHubService;
-
-class BufferClient : public IBufferClient {
-public:
-    // Creates a server-side buffer client from an existing BufferNode. Note that
-    // this function takes ownership of the shared_ptr.
-    // Returns a raw pointer to the BufferClient on success, nullptr on failure.
-    static BufferClient* create(BufferHubService* service, const std::shared_ptr<BufferNode>& node);
-
-    // Creates a BufferClient from an existing BufferClient. Will share the same BufferNode.
-    explicit BufferClient(const BufferClient& other)
-          : mService(other.mService), mBufferNode(other.mBufferNode) {}
-    ~BufferClient();
-
-    Return<BufferHubStatus> close() override;
-    Return<void> duplicate(duplicate_cb _hidl_cb) override;
-
-    // Non-binder functions
-    const std::shared_ptr<BufferNode>& getBufferNode() const { return mBufferNode; }
-
-private:
-    BufferClient(wp<BufferHubService> service, const std::shared_ptr<BufferNode>& node)
-          : mService(service), mBufferNode(node) {}
-
-    sp<BufferHubService> getService();
-
-    wp<BufferHubService> mService;
-
-    std::mutex mClosedMutex;
-    bool mClosed GUARDED_BY(mClosedMutex) = false;
-
-    std::shared_ptr<BufferNode> mBufferNode;
-};
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
-
-#endif
diff --git a/services/bufferhub/include/bufferhub/BufferHubIdGenerator.h b/services/bufferhub/include/bufferhub/BufferHubIdGenerator.h
deleted file mode 100644
index ef7c077..0000000
--- a/services/bufferhub/include/bufferhub/BufferHubIdGenerator.h
+++ /dev/null
@@ -1,61 +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.
- */
-
-#ifndef ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_ID_GENERATOR_H
-#define ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_ID_GENERATOR_H
-
-#include <mutex>
-#include <set>
-
-#include <utils/Mutex.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-// A thread-safe, non-negative, incremental, int id generator.
-class BufferHubIdGenerator {
-public:
-    // Get the singleton instance of this class
-    static BufferHubIdGenerator& getInstance();
-
-    // Gets next available id. If next id is greater than std::numeric_limits<int32_t>::max(), it
-    // will try to get an id start from 0 again.
-    int getId();
-
-    // Free a specific id.
-    void freeId(int id);
-
-private:
-    BufferHubIdGenerator() = default;
-    ~BufferHubIdGenerator() = default;
-
-    // Start from -1 so all valid ids will be >= 0
-    int mLastId = -1;
-
-    std::mutex mIdsInUseMutex;
-    std::set<int> mIdsInUse GUARDED_BY(mIdsInUseMutex);
-};
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
-
-#endif // ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_ID_GENERATOR_H
diff --git a/services/bufferhub/include/bufferhub/BufferHubService.h b/services/bufferhub/include/bufferhub/BufferHubService.h
deleted file mode 100644
index edad20b..0000000
--- a/services/bufferhub/include/bufferhub/BufferHubService.h
+++ /dev/null
@@ -1,92 +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.
- */
-
-#ifndef ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_HUB_SERVICE_H
-#define ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_HUB_SERVICE_H
-
-#include <map>
-#include <mutex>
-#include <set>
-#include <vector>
-
-#include <android/frameworks/bufferhub/1.0/IBufferHub.h>
-#include <bufferhub/BufferClient.h>
-#include <bufferhub/BufferHubIdGenerator.h>
-#include <utils/Mutex.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-using hardware::hidl_handle;
-using hardware::hidl_string;
-using hardware::hidl_vec;
-using hardware::Return;
-using hardware::graphics::common::V1_2::HardwareBufferDescription;
-
-class BufferHubService : public IBufferHub {
-public:
-    BufferHubService();
-
-    Return<void> allocateBuffer(const HardwareBufferDescription& description,
-                                const uint32_t userMetadataSize,
-                                allocateBuffer_cb _hidl_cb) override;
-    Return<void> importBuffer(const hidl_handle& tokenHandle, importBuffer_cb _hidl_cb) override;
-
-    Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) override;
-
-    // Non-binder functions
-    // Internal help function for IBufferClient::duplicate.
-    hidl_handle registerToken(const wp<BufferClient>& client);
-
-    void onClientClosed(const BufferClient* client);
-
-private:
-    // Helper function to build BufferTraits.bufferInfo handle
-    hidl_handle buildBufferInfo(char* bufferInfoStorage, int bufferId, uint32_t clientBitMask,
-                                uint32_t userMetadataSize, int metadataFd, int eventFd);
-
-    // Helper function to remove all the token belongs to a specific client.
-    void removeTokenByClient(const BufferClient* client);
-
-    // List of active BufferClient for bookkeeping.
-    std::mutex mClientSetMutex;
-    std::set<wp<BufferClient>> mClientSet GUARDED_BY(mClientSetMutex);
-
-    // Token generation related
-    // A random number used as private key for HMAC
-    uint64_t mKey;
-    static constexpr size_t kKeyLen = sizeof(uint64_t);
-
-    std::mutex mTokenMutex;
-    // The first TokenId will be 1. TokenId could be negative.
-    int mLastTokenId GUARDED_BY(mTokenMutex) = 0;
-    static constexpr size_t mTokenIdSize = sizeof(int);
-    // A map from token id to the token-buffer_client pair. Using token id as the key to reduce
-    // looking up time
-    std::map<int, std::pair<std::vector<uint8_t>, const wp<BufferClient>>> mTokenMap
-            GUARDED_BY(mTokenMutex);
-};
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
-
-#endif // ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_HUB_SERVICE_H
diff --git a/services/bufferhub/include/bufferhub/BufferNode.h b/services/bufferhub/include/bufferhub/BufferNode.h
deleted file mode 100644
index 62a8d63..0000000
--- a/services/bufferhub/include/bufferhub/BufferNode.h
+++ /dev/null
@@ -1,100 +0,0 @@
-#ifndef ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_NODE_H_
-#define ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_NODE_H_
-
-#include <android/hardware_buffer.h>
-#include <bufferhub/BufferHubIdGenerator.h>
-#include <cutils/native_handle.h>
-#include <ui/BufferHubEventFd.h>
-#include <ui/BufferHubMetadata.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-class BufferNode {
-public:
-    // Allocates a new BufferNode.
-    BufferNode(uint32_t width, uint32_t height, uint32_t layerCount, uint32_t format,
-               uint64_t usage, size_t userMetadataSize, int id = -1);
-
-    ~BufferNode();
-
-    // Returns whether the object holds a valid metadata.
-    bool isValid() const { return mMetadata.isValid(); }
-
-    int id() const { return mId; }
-
-    size_t userMetadataSize() const { return mMetadata.userMetadataSize(); }
-
-    // Accessors of the buffer description and handle
-    const native_handle_t* bufferHandle() const { return mBufferHandle; }
-    const AHardwareBuffer_Desc& bufferDesc() const { return mBufferDesc; }
-
-    // Accessor of event fd.
-    const BufferHubEventFd& eventFd() const { return mEventFd; }
-
-    // Accessors of mMetadata.
-    const BufferHubMetadata& metadata() const { return mMetadata; }
-
-    // Gets the current value of mActiveClientsBitMask in mMetadata with
-    // std::memory_order_acquire, so that all previous releases of
-    // mActiveClientsBitMask from all threads will be returned here.
-    uint32_t getActiveClientsBitMask() const;
-
-    // Find and add a new client state mask to mActiveClientsBitMask in
-    // mMetadata.
-    // Return the new client state mask that is added to mActiveClientsBitMask.
-    // Return 0U if there are already 16 clients of the buffer.
-    uint32_t addNewActiveClientsBitToMask();
-
-    // Removes the value from active_clients_bit_mask in mMetadata with
-    // std::memory_order_release, so that the change will be visible to any
-    // acquire of mActiveClientsBitMask in any threads after the succeed of
-    // this operation.
-    void removeClientsBitFromMask(const uint32_t& value);
-
-private:
-    // Helper method for constructors to initialize atomic metadata header
-    // variables in shared memory.
-    void initializeMetadata();
-
-    // Gralloc buffer handles.
-    native_handle_t* mBufferHandle;
-    AHardwareBuffer_Desc mBufferDesc;
-
-    // Eventfd used for signalling buffer events among the clients of the buffer.
-    BufferHubEventFd mEventFd;
-
-    // Metadata in shared memory.
-    BufferHubMetadata mMetadata;
-
-    // A system-unique id generated by bufferhub from 0 to std::numeric_limits<int>::max().
-    // BufferNodes not created by bufferhub will have id < 0, meaning "not specified".
-    // TODO(b/118891412): remove default id = -1 and update comments after pdx is no longer in use
-    const int mId = -1;
-
-    // The following variables are atomic variables in mMetadata that are visible
-    // to Bn object and Bp objects. Please find more info in
-    // BufferHubDefs::MetadataHeader.
-
-    // mBufferState tracks the state of the buffer. Buffer can be in one of these
-    // four states: gained, posted, acquired, released.
-    std::atomic<uint32_t>* mBufferState = nullptr;
-
-    // TODO(b/112012161): add comments to mFenceState.
-    std::atomic<uint32_t>* mFenceState = nullptr;
-
-    // mActiveClientsBitMask tracks all the bp clients of the buffer. It is the
-    // union of all client_state_mask of all bp clients.
-    std::atomic<uint32_t>* mActiveClientsBitMask = nullptr;
-};
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
-
-#endif // ANDROID_FRAMEWORKS_BUFFERHUB_V1_0_BUFFER_NODE_H_
diff --git a/services/bufferhub/main_bufferhub.cpp b/services/bufferhub/main_bufferhub.cpp
deleted file mode 100644
index 084460d..0000000
--- a/services/bufferhub/main_bufferhub.cpp
+++ /dev/null
@@ -1,37 +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.
- */
-
-#include <bufferhub/BufferHubService.h>
-#include <hidl/HidlTransportSupport.h>
-#include <hwbinder/IPCThreadState.h>
-#include <log/log.h>
-
-using android::sp;
-using android::frameworks::bufferhub::V1_0::IBufferHub;
-using android::frameworks::bufferhub::V1_0::implementation::BufferHubService;
-
-int main(int /*argc*/, char** /*argv*/) {
-    ALOGI("Bootstrap bufferhub HIDL service.");
-
-    android::hardware::configureRpcThreadpool(/*numThreads=*/1, /*willJoin=*/true);
-
-    sp<IBufferHub> service = new BufferHubService();
-    LOG_ALWAYS_FATAL_IF(service->registerAsService() != android::OK, "Failed to register service");
-
-    android::hardware::joinRpcThreadpool();
-
-    return 0;
-}
diff --git a/services/bufferhub/tests/Android.bp b/services/bufferhub/tests/Android.bp
deleted file mode 100644
index 3033e70..0000000
--- a/services/bufferhub/tests/Android.bp
+++ /dev/null
@@ -1,26 +0,0 @@
-cc_test {
-    name: "BufferHubServer_test",
-    srcs: [
-        "BufferNode_test.cpp",
-        "BufferHubIdGenerator_test.cpp",
-    ],
-    cflags: [
-        "-DLOG_TAG=\"BufferHubServer_test\"",
-        "-DTRACE=0",
-        "-DATRACE_TAG=ATRACE_TAG_GRAPHICS",
-        "-Wall",
-        "-Werror",
-    ],
-    compile_multilib: "first",
-    header_libs: [
-        "libdvr_headers",
-        "libnativewindow_headers",
-    ],
-    shared_libs: [
-        "libbufferhubservice",
-        "libui",
-    ],
-    static_libs: [
-        "libgmock",
-    ],
-}
diff --git a/services/bufferhub/tests/BufferHubIdGenerator_test.cpp b/services/bufferhub/tests/BufferHubIdGenerator_test.cpp
deleted file mode 100644
index fb6de0d..0000000
--- a/services/bufferhub/tests/BufferHubIdGenerator_test.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-#include <bufferhub/BufferHubIdGenerator.h>
-#include <gtest/gtest.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-namespace {
-
-class BufferHubIdGeneratorTest : public testing::Test {
-protected:
-    BufferHubIdGenerator* mIdGenerator = &BufferHubIdGenerator::getInstance();
-};
-
-TEST_F(BufferHubIdGeneratorTest, TestGenerateAndFreeID) {
-    int id = mIdGenerator->getId();
-    EXPECT_GE(id, 0);
-
-    mIdGenerator->freeId(id);
-}
-
-TEST_F(BufferHubIdGeneratorTest, TestGenerateUniqueIncrementalID) {
-    // 10 IDs should not overflow the UniqueIdGenerator to cause a roll back to start, so the
-    // resulting IDs should still keep incresing.
-    const int kTestSize = 10;
-    int ids[kTestSize];
-    for (int i = 0; i < kTestSize; ++i) {
-        ids[i] = mIdGenerator->getId();
-        EXPECT_GE(ids[i], 0);
-        if (i >= 1) {
-            EXPECT_GT(ids[i], ids[i - 1]);
-        }
-    }
-
-    for (int i = 0; i < kTestSize; ++i) {
-        mIdGenerator->freeId(ids[i]);
-    }
-}
-
-} // namespace
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
\ No newline at end of file
diff --git a/services/bufferhub/tests/BufferNode_test.cpp b/services/bufferhub/tests/BufferNode_test.cpp
deleted file mode 100644
index 2dfd4fc..0000000
--- a/services/bufferhub/tests/BufferNode_test.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-#include <errno.h>
-
-#include <bufferhub/BufferNode.h>
-#include <gmock/gmock.h>
-#include <gtest/gtest.h>
-#include <ui/BufferHubDefs.h>
-#include <ui/GraphicBufferMapper.h>
-
-namespace android {
-namespace frameworks {
-namespace bufferhub {
-namespace V1_0 {
-namespace implementation {
-
-namespace {
-
-using testing::NotNull;
-
-const uint32_t kWidth = 640;
-const uint32_t kHeight = 480;
-const uint32_t kLayerCount = 1;
-const uint32_t kFormat = 1;
-const uint64_t kUsage = 0;
-const size_t kUserMetadataSize = 0;
-
-class BufferNodeTest : public ::testing::Test {
-protected:
-    void SetUp() override {
-        mBufferNode =
-                new BufferNode(kWidth, kHeight, kLayerCount, kFormat, kUsage, kUserMetadataSize);
-        ASSERT_TRUE(mBufferNode->isValid());
-    }
-
-    void TearDown() override {
-        if (mBufferNode != nullptr) {
-            delete mBufferNode;
-        }
-    }
-
-    BufferNode* mBufferNode = nullptr;
-};
-
-TEST_F(BufferNodeTest, TestCreateBufferNode) {
-    EXPECT_EQ(mBufferNode->userMetadataSize(), kUserMetadataSize);
-    // Test the handle just allocated is good (i.e. able to be imported)
-    GraphicBufferMapper& mapper = GraphicBufferMapper::get();
-    const native_handle_t* outHandle;
-    status_t ret =
-            mapper.importBuffer(mBufferNode->bufferHandle(), mBufferNode->bufferDesc().width,
-                                mBufferNode->bufferDesc().height, mBufferNode->bufferDesc().layers,
-                                mBufferNode->bufferDesc().format, mBufferNode->bufferDesc().usage,
-                                mBufferNode->bufferDesc().stride, &outHandle);
-    EXPECT_EQ(ret, OK);
-    EXPECT_THAT(outHandle, NotNull());
-}
-
-TEST_F(BufferNodeTest, TestaddNewActiveClientsBitToMask_twoNewClients) {
-    uint32_t newClientStateMask1 = mBufferNode->addNewActiveClientsBitToMask();
-    EXPECT_EQ(mBufferNode->getActiveClientsBitMask(), newClientStateMask1);
-
-    // Request and add a new client_state_mask again.
-    // Active clients bit mask should be the union of the two new
-    // client_state_masks.
-    uint32_t newClientStateMask2 = mBufferNode->addNewActiveClientsBitToMask();
-    EXPECT_EQ(mBufferNode->getActiveClientsBitMask(), newClientStateMask1 | newClientStateMask2);
-}
-
-TEST_F(BufferNodeTest, TestaddNewActiveClientsBitToMask_32NewClients) {
-    uint32_t newClientStateMask = 0U;
-    uint32_t currentMask = 0U;
-    uint32_t expectedMask = 0U;
-
-    for (int i = 0; i < BufferHubDefs::kMaxNumberOfClients; ++i) {
-        newClientStateMask = mBufferNode->addNewActiveClientsBitToMask();
-        EXPECT_NE(newClientStateMask, 0U);
-        EXPECT_FALSE(newClientStateMask & currentMask);
-        expectedMask = currentMask | newClientStateMask;
-        currentMask = mBufferNode->getActiveClientsBitMask();
-        EXPECT_EQ(currentMask, expectedMask);
-    }
-
-    // Method should fail upon requesting for more than maximum allowable clients.
-    newClientStateMask = mBufferNode->addNewActiveClientsBitToMask();
-    EXPECT_EQ(newClientStateMask, 0U);
-    EXPECT_EQ(errno, E2BIG);
-}
-
-TEST_F(BufferNodeTest, TestRemoveActiveClientsBitFromMask) {
-    mBufferNode->addNewActiveClientsBitToMask();
-    uint32_t currentMask = mBufferNode->getActiveClientsBitMask();
-    uint32_t newClientStateMask = mBufferNode->addNewActiveClientsBitToMask();
-    EXPECT_NE(mBufferNode->getActiveClientsBitMask(), currentMask);
-
-    mBufferNode->removeClientsBitFromMask(newClientStateMask);
-    EXPECT_EQ(mBufferNode->getActiveClientsBitMask(), currentMask);
-
-    // Remove the test_mask again to the active client bit mask should not modify
-    // the value of active clients bit mask.
-    mBufferNode->removeClientsBitFromMask(newClientStateMask);
-    EXPECT_EQ(mBufferNode->getActiveClientsBitMask(), currentMask);
-}
-
-} // namespace
-
-} // namespace implementation
-} // namespace V1_0
-} // namespace bufferhub
-} // namespace frameworks
-} // namespace android
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 4ec61b0..6a45d58 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -3280,9 +3280,8 @@
             KeyEntry* injectedEntry =
                     new KeyEntry(incomingKey.getId(), incomingKey.getEventTime(),
                                  VIRTUAL_KEYBOARD_ID, incomingKey.getSource(),
-                                 incomingKey.getDisplayId(), policyFlags, action, flags,
-                                 incomingKey.getKeyCode(), incomingKey.getScanCode(),
-                                 incomingKey.getMetaState(), incomingKey.getRepeatCount(),
+                                 incomingKey.getDisplayId(), policyFlags, action, flags, keyCode,
+                                 incomingKey.getScanCode(), metaState, incomingKey.getRepeatCount(),
                                  incomingKey.getDownTime());
             injectedEntries.push(injectedEntry);
             break;
@@ -3598,8 +3597,8 @@
             if (canReceiveInput && !noInputChannel) {
                 ALOGV("Window handle %s has no registered input channel",
                       handle->getName().c_str());
+                continue;
             }
-            continue;
         }
 
         if (info->displayId != displayId) {
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 29f3dac..e0d32a0 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -491,7 +491,7 @@
 
 // --- InputDispatcherTest SetInputWindowTest ---
 static constexpr int32_t INJECT_EVENT_TIMEOUT = 500;
-static constexpr int32_t DISPATCHING_TIMEOUT = 100;
+static constexpr nsecs_t DISPATCHING_TIMEOUT = seconds_to_nanoseconds(5);
 
 class FakeApplicationHandle : public InputApplicationHandle {
 public:
@@ -1852,6 +1852,7 @@
     ASSERT_EQ(INPUT_EVENT_INJECTION_SUCCEEDED, injectMotionDown(mDispatcher,
             AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT, 20, 20))
             << "Inject motion event should return INPUT_EVENT_INJECTION_SUCCEEDED";
+    mUnfocusedWindow->consumeMotionDown();
 
     ASSERT_TRUE(mDispatcher->waitForIdle());
     mFakePolicy->assertOnPointerDownEquals(mUnfocusedWindow->getToken());
@@ -1864,6 +1865,7 @@
     ASSERT_EQ(INPUT_EVENT_INJECTION_SUCCEEDED, injectMotionDown(mDispatcher,
             AINPUT_SOURCE_TRACKBALL, ADISPLAY_ID_DEFAULT, 20, 20))
             << "Inject motion event should return INPUT_EVENT_INJECTION_SUCCEEDED";
+    mFocusedWindow->consumeMotionDown();
 
     ASSERT_TRUE(mDispatcher->waitForIdle());
     mFakePolicy->assertOnPointerDownWasNotCalled();
@@ -1874,6 +1876,7 @@
 TEST_F(InputDispatcherOnPointerDownOutsideFocus, OnPointerDownOutsideFocus_NonMotionFailure) {
     ASSERT_EQ(INPUT_EVENT_INJECTION_SUCCEEDED, injectKeyDown(mDispatcher, ADISPLAY_ID_DEFAULT))
             << "Inject key event should return INPUT_EVENT_INJECTION_SUCCEEDED";
+    mFocusedWindow->consumeKeyDown(ADISPLAY_ID_DEFAULT);
 
     ASSERT_TRUE(mDispatcher->waitForIdle());
     mFakePolicy->assertOnPointerDownWasNotCalled();
@@ -1888,6 +1891,7 @@
               injectMotionDown(mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
                                mFocusedWindowTouchPoint, mFocusedWindowTouchPoint))
             << "Inject motion event should return INPUT_EVENT_INJECTION_SUCCEEDED";
+    mFocusedWindow->consumeMotionDown();
 
     ASSERT_TRUE(mDispatcher->waitForIdle());
     mFakePolicy->assertOnPointerDownWasNotCalled();
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 96d86b6..675b77b 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -1748,7 +1748,8 @@
 
     virtual void SetUp() override {
         mFakePolicy = new FakeInputReaderPolicy();
-        mTestListener = new TestInputListener(50ms);
+        mTestListener = new TestInputListener(2000ms /*eventHappenedTimeout*/,
+                                              30ms /*eventDidNotHappenTimeout*/);
 
         mReader = new InputReader(std::make_shared<EventHub>(), mFakePolicy, mTestListener);
         ASSERT_EQ(mReader->start(), OK);
diff --git a/services/inputflinger/tests/TestInputListener.cpp b/services/inputflinger/tests/TestInputListener.cpp
index 86ff3b1..9bff166 100644
--- a/services/inputflinger/tests/TestInputListener.cpp
+++ b/services/inputflinger/tests/TestInputListener.cpp
@@ -23,7 +23,10 @@
 
 // --- TestInputListener ---
 
-TestInputListener::TestInputListener(const std::chrono::milliseconds timeout) : mTimeout(timeout) {}
+TestInputListener::TestInputListener(std::chrono::milliseconds eventHappenedTimeout,
+                                     std::chrono::milliseconds eventDidNotHappenTimeout)
+      : mEventHappenedTimeout(eventHappenedTimeout),
+        mEventDidNotHappenTimeout(eventDidNotHappenTimeout) {}
 
 TestInputListener::~TestInputListener() { }
 
@@ -86,9 +89,9 @@
 
     std::vector<NotifyArgsType>& queue = std::get<std::vector<NotifyArgsType>>(mQueues);
     if (queue.empty()) {
-        const bool eventReceived = mCondition.wait_for(lock, mTimeout, [&queue]() REQUIRES(mLock) {
-            return !queue.empty();
-        });
+        const bool eventReceived =
+                mCondition.wait_for(lock, mEventHappenedTimeout,
+                                    [&queue]() REQUIRES(mLock) { return !queue.empty(); });
         if (!eventReceived) {
             FAIL() << "Timed out waiting for event: " << message.c_str();
         }
@@ -105,9 +108,9 @@
     base::ScopedLockAssertion assumeLocked(mLock);
 
     std::vector<NotifyArgsType>& queue = std::get<std::vector<NotifyArgsType>>(mQueues);
-    const bool eventReceived = mCondition.wait_for(lock, mTimeout, [&queue]() REQUIRES(mLock) {
-        return !queue.empty();
-    });
+    const bool eventReceived =
+            mCondition.wait_for(lock, mEventDidNotHappenTimeout,
+                                [&queue]() REQUIRES(mLock) { return !queue.empty(); });
     if (eventReceived) {
         FAIL() << "Unexpected event: " << message.c_str();
     }
diff --git a/services/inputflinger/tests/TestInputListener.h b/services/inputflinger/tests/TestInputListener.h
index 4262f5a..d50c6bc 100644
--- a/services/inputflinger/tests/TestInputListener.h
+++ b/services/inputflinger/tests/TestInputListener.h
@@ -32,7 +32,8 @@
     virtual ~TestInputListener();
 
 public:
-    TestInputListener(const std::chrono::milliseconds timeout = 5ms);
+    TestInputListener(std::chrono::milliseconds eventHappenedTimeout = 0ms,
+                      std::chrono::milliseconds eventDidNotHappenTimeout = 0ms);
 
     void assertNotifyConfigurationChangedWasCalled(
             NotifyConfigurationChangedArgs* outEventArgs = nullptr);
@@ -75,7 +76,8 @@
 
     std::mutex mLock;
     std::condition_variable mCondition;
-    const std::chrono::milliseconds mTimeout;
+    const std::chrono::milliseconds mEventHappenedTimeout;
+    const std::chrono::milliseconds mEventDidNotHappenTimeout;
 
     std::tuple<std::vector<NotifyConfigurationChangedArgs>, //
                std::vector<NotifyDeviceResetArgs>,          //
diff --git a/services/sensorservice/SensorDevice.cpp b/services/sensorservice/SensorDevice.cpp
index 3b68e0e..45e67f7 100644
--- a/services/sensorservice/SensorDevice.cpp
+++ b/services/sensorservice/SensorDevice.cpp
@@ -20,7 +20,6 @@
 #include "android/hardware/sensors/2.1/ISensorsCallback.h"
 #include "android/hardware/sensors/2.1/types.h"
 #include "convertV2_1.h"
-#include "SensorService.h"
 
 #include <android-base/logging.h>
 #include <android/util/ProtoOutputStream.h>
@@ -30,6 +29,7 @@
 #include <utils/Errors.h>
 #include <utils/Singleton.h>
 
+#include <cstddef>
 #include <chrono>
 #include <cinttypes>
 #include <thread>
@@ -143,6 +143,25 @@
                 for (size_t i=0 ; i < count; i++) {
                     sensor_t sensor;
                     convertToSensor(convertToOldSensorInfo(list[i]), &sensor);
+
+                    if (sensor.type < static_cast<int>(SensorType::DEVICE_PRIVATE_BASE)) {
+                        if(sensor.resolution == 0) {
+                            // Don't crash here or the device will go into a crashloop.
+                            ALOGW("%s must have a non-zero resolution", sensor.name);
+                            // For simple algos, map their resolution to 1 if it's not specified
+                            sensor.resolution =
+                                    SensorDeviceUtils::defaultResolutionForType(sensor.type);
+                        }
+
+                        double promotedResolution = sensor.resolution;
+                        double promotedMaxRange = sensor.maxRange;
+                        if (fmod(promotedMaxRange, promotedResolution) != 0) {
+                            ALOGW("%s's max range %f is not a multiple of the resolution %f",
+                                    sensor.name, sensor.maxRange, sensor.resolution);
+                            SensorDeviceUtils::quantizeValue(&sensor.maxRange, promotedResolution);
+                        }
+                    }
+
                     // Sanity check and clamp power if it is 0 (or close)
                     if (sensor.power < minPowerMa) {
                         ALOGI("Reported power %f not deemed sane, clamping to %f",
@@ -403,8 +422,8 @@
     if (mSensors == nullptr) return "HAL not initialized\n";
 
     String8 result;
-    result.appendFormat("Total %zu h/w sensors, %zu running:\n",
-                        mSensorList.size(), mActivationCount.size());
+    result.appendFormat("Total %zu h/w sensors, %zu running %zu disabled clients:\n",
+                        mSensorList.size(), mActivationCount.size(), mDisabledClients.size());
 
     Mutex::Autolock _l(mLock);
     for (const auto & s : mSensorList) {
@@ -417,16 +436,18 @@
         result.append("sampling_period(ms) = {");
         for (size_t j = 0; j < info.batchParams.size(); j++) {
             const BatchParams& params = info.batchParams[j];
-            result.appendFormat("%.1f%s", params.mTSample / 1e6f,
-                j < info.batchParams.size() - 1 ? ", " : "");
+            result.appendFormat("%.1f%s%s", params.mTSample / 1e6f,
+                isClientDisabledLocked(info.batchParams.keyAt(j)) ? "(disabled)" : "",
+                (j < info.batchParams.size() - 1) ? ", " : "");
         }
         result.appendFormat("}, selected = %.2f ms; ", info.bestBatchParams.mTSample / 1e6f);
 
         result.append("batching_period(ms) = {");
         for (size_t j = 0; j < info.batchParams.size(); j++) {
             const BatchParams& params = info.batchParams[j];
-            result.appendFormat("%.1f%s", params.mTBatch / 1e6f,
-                    j < info.batchParams.size() - 1 ? ", " : "");
+            result.appendFormat("%.1f%s%s", params.mTBatch / 1e6f,
+                    isClientDisabledLocked(info.batchParams.keyAt(j)) ? "(disabled)" : "",
+                    (j < info.batchParams.size() - 1) ? ", " : "");
         }
         result.appendFormat("}, selected = %.2f ms\n", info.bestBatchParams.mTBatch / 1e6f);
     }
@@ -508,7 +529,7 @@
                     const auto &events,
                     const auto &dynamicSensorsAdded) {
                     if (result == Result::OK) {
-                        convertToSensorEvents(convertToNewEvents(events),
+                        convertToSensorEventsAndQuantize(convertToNewEvents(events),
                                 convertToNewSensorInfos(dynamicSensorsAdded), buffer);
                         err = (ssize_t)events.size();
                     } else {
@@ -571,6 +592,8 @@
 
             for (size_t i = 0; i < eventsToRead; i++) {
                 convertToSensorEvent(mEventBuffer[i], &buffer[i]);
+                android::SensorDeviceUtils::quantizeSensorEventValues(&buffer[i],
+                        getResolutionForSensor(buffer[i].sensor));
             }
             eventsRead = eventsToRead;
         } else {
@@ -641,7 +664,7 @@
 }
 
 status_t SensorDevice::activateLocked(void* ident, int handle, int enabled) {
-    bool actuateHardware = false;
+    bool activateHardware = false;
 
     status_t err(NO_ERROR);
 
@@ -667,7 +690,7 @@
 
         if (info.batchParams.indexOfKey(ident) >= 0) {
             if (info.numActiveClients() > 0 && !info.isActive) {
-                actuateHardware = true;
+                activateHardware = true;
             }
         } else {
             // Log error. Every activate call should be preceded by a batch() call.
@@ -687,7 +710,7 @@
         if (info.removeBatchParamsForIdent(ident) >= 0) {
             if (info.numActiveClients() == 0) {
                 // This is the last connection, we need to de-activate the underlying h/w sensor.
-                actuateHardware = true;
+                activateHardware = true;
             } else {
                 // Call batch for this sensor with the previously calculated best effort
                 // batch_rate and timeout. One of the apps has unregistered for sensor
@@ -707,12 +730,8 @@
         }
     }
 
-    if (actuateHardware) {
-        ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w activate handle=%d enabled=%d", handle,
-                 enabled);
-        err = checkReturnAndGetStatus(mSensors->activate(handle, enabled));
-        ALOGE_IF(err, "Error %s sensor %d (%s)", enabled ? "activating" : "disabling", handle,
-                 strerror(-err));
+    if (activateHardware) {
+        err = doActivateHardwareLocked(handle, enabled);
 
         if (err != NO_ERROR && enabled) {
             // Failure when enabling the sensor. Clean up on failure.
@@ -728,6 +747,15 @@
     return err;
 }
 
+status_t SensorDevice::doActivateHardwareLocked(int handle, bool enabled) {
+    ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w activate handle=%d enabled=%d", handle,
+             enabled);
+    status_t err = checkReturnAndGetStatus(mSensors->activate(handle, enabled));
+    ALOGE_IF(err, "Error %s sensor %d (%s)", enabled ? "activating" : "disabling", handle,
+             strerror(-err));
+    return err;
+}
+
 status_t SensorDevice::batch(
         void* ident,
         int handle,
@@ -768,6 +796,18 @@
         info.setBatchParamsForIdent(ident, flags, samplingPeriodNs, maxBatchReportLatencyNs);
     }
 
+    status_t err =  updateBatchParamsLocked(handle, info);
+    if (err != NO_ERROR) {
+        ALOGE("sensor batch failed %p 0x%08x %" PRId64 " %" PRId64 " err=%s",
+              mSensors.get(), handle, info.bestBatchParams.mTSample,
+              info.bestBatchParams.mTBatch, strerror(-err));
+        info.removeBatchParamsForIdent(ident);
+    }
+
+    return err;
+}
+
+status_t SensorDevice::updateBatchParamsLocked(int handle, Info &info) {
     BatchParams prevBestBatchParams = info.bestBatchParams;
     // Find the minimum of all timeouts and batch_rates for this sensor.
     info.selectBatchParams();
@@ -785,13 +825,8 @@
                  info.bestBatchParams.mTSample, info.bestBatchParams.mTBatch);
         err = checkReturnAndGetStatus(mSensors->batch(
                 handle, info.bestBatchParams.mTSample, info.bestBatchParams.mTBatch));
-        if (err != NO_ERROR) {
-            ALOGE("sensor batch failed %p 0x%08x %" PRId64 " %" PRId64 " err=%s",
-                  mSensors.get(), handle, info.bestBatchParams.mTSample,
-                  info.bestBatchParams.mTBatch, strerror(-err));
-            info.removeBatchParamsForIdent(ident);
-        }
     }
+
     return err;
 }
 
@@ -811,13 +846,61 @@
     return checkReturnAndGetStatus(mSensors->flush(handle));
 }
 
-bool SensorDevice::isClientDisabled(void* ident) {
+bool SensorDevice::isClientDisabled(void* ident) const {
     Mutex::Autolock _l(mLock);
     return isClientDisabledLocked(ident);
 }
 
-bool SensorDevice::isClientDisabledLocked(void* ident) {
-    return mDisabledClients.indexOf(ident) >= 0;
+bool SensorDevice::isClientDisabledLocked(void* ident) const {
+    return mDisabledClients.count(ident) > 0;
+}
+
+std::vector<void *> SensorDevice::getDisabledClientsLocked() const {
+    std::vector<void *> vec;
+    for (const auto& it : mDisabledClients) {
+        vec.push_back(it.first);
+    }
+
+    return vec;
+}
+
+void SensorDevice::addDisabledReasonForIdentLocked(void* ident, DisabledReason reason) {
+    mDisabledClients[ident] |= 1 << reason;
+}
+
+void SensorDevice::removeDisabledReasonForIdentLocked(void* ident, DisabledReason reason) {
+    if (isClientDisabledLocked(ident)) {
+        mDisabledClients[ident] &= ~(1 << reason);
+        if (mDisabledClients[ident] == 0) {
+            mDisabledClients.erase(ident);
+        }
+    }
+}
+
+void SensorDevice::setUidStateForConnection(void* ident, SensorService::UidState state) {
+    Mutex::Autolock _l(mLock);
+    if (state == SensorService::UID_STATE_ACTIVE) {
+        removeDisabledReasonForIdentLocked(ident, DisabledReason::DISABLED_REASON_UID_IDLE);
+    } else {
+        addDisabledReasonForIdentLocked(ident, DisabledReason::DISABLED_REASON_UID_IDLE);
+    }
+
+    for (size_t i = 0; i< mActivationCount.size(); ++i) {
+        int handle = mActivationCount.keyAt(i);
+        Info& info = mActivationCount.editValueAt(i);
+
+        if (info.hasBatchParamsForIdent(ident)) {
+            if (updateBatchParamsLocked(handle, info) != NO_ERROR) {
+                bool enable = info.numActiveClients() == 0 && info.isActive;
+                bool disable = info.numActiveClients() > 0 && !info.isActive;
+
+                if ((enable || disable) &&
+                    doActivateHardwareLocked(handle, enable) == NO_ERROR) {
+                    info.isActive = enable;
+                }
+            }
+        }
+    }
 }
 
 bool SensorDevice::isSensorActive(int handle) const {
@@ -832,8 +915,12 @@
 void SensorDevice::enableAllSensors() {
     if (mSensors == nullptr) return;
     Mutex::Autolock _l(mLock);
-    mDisabledClients.clear();
-    ALOGI("cleared mDisabledClients");
+
+    for (void *client : getDisabledClientsLocked()) {
+        removeDisabledReasonForIdentLocked(
+            client, DisabledReason::DISABLED_REASON_SERVICE_RESTRICTED);
+    }
+
     for (size_t i = 0; i< mActivationCount.size(); ++i) {
         Info& info = mActivationCount.editValueAt(i);
         if (info.batchParams.isEmpty()) continue;
@@ -873,7 +960,8 @@
            // Add all the connections that were registered for this sensor to the disabled
            // clients list.
            for (size_t j = 0; j < info.batchParams.size(); ++j) {
-               mDisabledClients.add(info.batchParams.keyAt(j));
+               addDisabledReasonForIdentLocked(
+                   info.batchParams.keyAt(j), DisabledReason::DISABLED_REASON_SERVICE_RESTRICTED);
                ALOGI("added %p to mDisabledClients", info.batchParams.keyAt(j));
            }
 
@@ -1048,7 +1136,7 @@
 
 void SensorDevice::notifyConnectionDestroyed(void* ident) {
     Mutex::Autolock _l(mLock);
-    mDisabledClients.remove(ident);
+    mDisabledClients.erase(ident);
 }
 
 bool SensorDevice::isDirectReportSupported() const {
@@ -1077,7 +1165,7 @@
     }
 }
 
-void SensorDevice::convertToSensorEvents(
+void SensorDevice::convertToSensorEventsAndQuantize(
         const hidl_vec<Event> &src,
         const hidl_vec<SensorInfo> &dynamicSensorsAdded,
         sensors_event_t *dst) {
@@ -1088,9 +1176,26 @@
 
     for (size_t i = 0; i < src.size(); ++i) {
         V2_1::implementation::convertToSensorEvent(src[i], &dst[i]);
+        android::SensorDeviceUtils::quantizeSensorEventValues(&dst[i],
+                getResolutionForSensor(dst[i].sensor));
     }
 }
 
+float SensorDevice::getResolutionForSensor(int sensorHandle) {
+    for (size_t i = 0; i < mSensorList.size(); i++) {
+      if (sensorHandle == mSensorList[i].handle) {
+        return mSensorList[i].resolution;
+      }
+    }
+
+    auto it = mConnectedDynamicSensors.find(sensorHandle);
+    if (it != mConnectedDynamicSensors.end()) {
+      return it->second->resolution;
+    }
+
+    return 0;
+}
+
 void SensorDevice::handleHidlDeath(const std::string & detail) {
     if (!mSensors->supportsMessageQueues()) {
         // restart is the only option at present.
diff --git a/services/sensorservice/SensorDevice.h b/services/sensorservice/SensorDevice.h
index 24d03c6..5e7d3da 100644
--- a/services/sensorservice/SensorDevice.h
+++ b/services/sensorservice/SensorDevice.h
@@ -18,6 +18,7 @@
 #define ANDROID_SENSOR_DEVICE_H
 
 #include "SensorDeviceUtils.h"
+#include "SensorService.h"
 #include "SensorServiceUtils.h"
 #include "ISensorsWrapper.h"
 
@@ -116,6 +117,8 @@
     hardware::Return<void> onDynamicSensorsDisconnected(
             const hardware::hidl_vec<int32_t> &dynamicSensorHandlesRemoved);
 
+    void setUidStateForConnection(void* ident, SensorService::UidState state);
+
     bool isReconnecting() const {
         return mReconnecting;
     }
@@ -179,6 +182,13 @@
         // the removed ident. If index >=0, ident is present and successfully removed.
         ssize_t removeBatchParamsForIdent(void* ident);
 
+        bool hasBatchParamsForIdent(void* ident) const {
+            return batchParams.indexOfKey(ident) >= 0;
+        }
+
+        /**
+         * @return The number of active clients of this sensor.
+         */
         int numActiveClients() const;
     };
     DefaultKeyedVector<int, Info> mActivationCount;
@@ -187,8 +197,26 @@
     SensorServiceUtil::RingBuffer<HidlTransportErrorLog> mHidlTransportErrors;
     int mTotalHidlTransportErrors;
 
-    // Use this vector to determine which client is activated or deactivated.
-    SortedVector<void *> mDisabledClients;
+    /**
+     * Enums describing the reason why a client was disabled.
+     */
+    enum DisabledReason : uint8_t {
+        // UID becomes idle (e.g. app goes to background).
+        DISABLED_REASON_UID_IDLE = 0,
+
+        // Sensors are restricted for all clients.
+        DISABLED_REASON_SERVICE_RESTRICTED,
+        DISABLED_REASON_MAX,
+    };
+
+    static_assert(DisabledReason::DISABLED_REASON_MAX < sizeof(uint8_t) * CHAR_BIT);
+
+    // Use this map to determine which client is activated or deactivated.
+    std::unordered_map<void *, uint8_t> mDisabledClients;
+
+    void addDisabledReasonForIdentLocked(void* ident, DisabledReason reason);
+    void removeDisabledReasonForIdentLocked(void* ident, DisabledReason reason);
+
     SensorDevice();
     bool connectHidlService();
     void initializeSensorList();
@@ -214,6 +242,9 @@
     status_t batchLocked(void* ident, int handle, int flags, int64_t samplingPeriodNs,
                          int64_t maxBatchReportLatencyNs);
 
+    status_t updateBatchParamsLocked(int handle, Info& info);
+    status_t doActivateHardwareLocked(int handle, bool enable);
+
     void handleHidlDeath(const std::string &detail);
     template<typename T>
     void checkReturn(const Return<T>& ret) {
@@ -225,19 +256,24 @@
     //TODO(b/67425500): remove waiter after bug is resolved.
     sp<SensorDeviceUtils::HidlServiceRegistrationWaiter> mRestartWaiter;
 
-    bool isClientDisabled(void* ident);
-    bool isClientDisabledLocked(void* ident);
+    bool isClientDisabled(void* ident) const;
+    bool isClientDisabledLocked(void* ident) const;
+    std::vector<void *> getDisabledClientsLocked() const;
+
+    bool clientHasNoAccessLocked(void* ident) const;
 
     using Event = hardware::sensors::V2_1::Event;
     using SensorInfo = hardware::sensors::V2_1::SensorInfo;
 
     void convertToSensorEvent(const Event &src, sensors_event_t *dst);
 
-    void convertToSensorEvents(
+    void convertToSensorEventsAndQuantize(
             const hardware::hidl_vec<Event> &src,
             const hardware::hidl_vec<SensorInfo> &dynamicSensorsAdded,
             sensors_event_t *dst);
 
+    float getResolutionForSensor(int sensorHandle);
+
     bool mIsDirectReportSupported;
 
     typedef hardware::MessageQueue<uint32_t, hardware::kSynchronizedReadWrite> WakeLockQueue;
diff --git a/services/sensorservice/SensorDeviceUtils.cpp b/services/sensorservice/SensorDeviceUtils.cpp
index dbafffe..0dcf8c0 100644
--- a/services/sensorservice/SensorDeviceUtils.cpp
+++ b/services/sensorservice/SensorDeviceUtils.cpp
@@ -17,17 +17,101 @@
 #include "SensorDeviceUtils.h"
 
 #include <android/hardware/sensors/1.0/ISensors.h>
+#include <android/hardware/sensors/2.1/ISensors.h>
 #include <utils/Log.h>
 
 #include <chrono>
 #include <thread>
 
 using ::android::hardware::Void;
+using SensorTypeV2_1 = android::hardware::sensors::V2_1::SensorType;
 using namespace android::hardware::sensors::V1_0;
 
 namespace android {
 namespace SensorDeviceUtils {
 
+void quantizeSensorEventValues(sensors_event_t *event, float resolution) {
+    LOG_FATAL_IF(resolution == 0, "Resolution must be specified for all sensors!");
+    if (resolution == 0) {
+        return;
+    }
+
+    size_t axes = 0;
+    switch ((SensorTypeV2_1)event->type) {
+        case SensorTypeV2_1::ACCELEROMETER:
+        case SensorTypeV2_1::MAGNETIC_FIELD:
+        case SensorTypeV2_1::ORIENTATION:
+        case SensorTypeV2_1::GYROSCOPE:
+        case SensorTypeV2_1::GRAVITY:
+        case SensorTypeV2_1::LINEAR_ACCELERATION:
+        case SensorTypeV2_1::MAGNETIC_FIELD_UNCALIBRATED:
+        case SensorTypeV2_1::GYROSCOPE_UNCALIBRATED:
+        case SensorTypeV2_1::ACCELEROMETER_UNCALIBRATED:
+            axes = 3;
+            break;
+        case SensorTypeV2_1::GAME_ROTATION_VECTOR:
+            axes = 4;
+            break;
+        case SensorTypeV2_1::ROTATION_VECTOR:
+        case SensorTypeV2_1::GEOMAGNETIC_ROTATION_VECTOR:
+            axes = 5;
+            break;
+        case SensorTypeV2_1::DEVICE_ORIENTATION:
+        case SensorTypeV2_1::LIGHT:
+        case SensorTypeV2_1::PRESSURE:
+        case SensorTypeV2_1::TEMPERATURE:
+        case SensorTypeV2_1::PROXIMITY:
+        case SensorTypeV2_1::RELATIVE_HUMIDITY:
+        case SensorTypeV2_1::AMBIENT_TEMPERATURE:
+        case SensorTypeV2_1::SIGNIFICANT_MOTION:
+        case SensorTypeV2_1::STEP_DETECTOR:
+        case SensorTypeV2_1::TILT_DETECTOR:
+        case SensorTypeV2_1::WAKE_GESTURE:
+        case SensorTypeV2_1::GLANCE_GESTURE:
+        case SensorTypeV2_1::PICK_UP_GESTURE:
+        case SensorTypeV2_1::WRIST_TILT_GESTURE:
+        case SensorTypeV2_1::STATIONARY_DETECT:
+        case SensorTypeV2_1::MOTION_DETECT:
+        case SensorTypeV2_1::HEART_BEAT:
+        case SensorTypeV2_1::LOW_LATENCY_OFFBODY_DETECT:
+        case SensorTypeV2_1::HINGE_ANGLE:
+            axes = 1;
+            break;
+        case SensorTypeV2_1::POSE_6DOF:
+            axes = 15;
+            break;
+        default:
+            // No other sensors have data that needs to be rounded.
+            break;
+    }
+
+    // sensor_event_t is a union so we're able to perform the same quanitization action for most
+    // sensors by only knowing the number of axes their output data has.
+    for (size_t i = 0; i < axes; i++) {
+        quantizeValue(&event->data[i], resolution);
+    }
+}
+
+float defaultResolutionForType(int type) {
+    switch ((SensorTypeV2_1)type) {
+        case SensorTypeV2_1::SIGNIFICANT_MOTION:
+        case SensorTypeV2_1::STEP_DETECTOR:
+        case SensorTypeV2_1::STEP_COUNTER:
+        case SensorTypeV2_1::TILT_DETECTOR:
+        case SensorTypeV2_1::WAKE_GESTURE:
+        case SensorTypeV2_1::GLANCE_GESTURE:
+        case SensorTypeV2_1::PICK_UP_GESTURE:
+        case SensorTypeV2_1::WRIST_TILT_GESTURE:
+        case SensorTypeV2_1::STATIONARY_DETECT:
+        case SensorTypeV2_1::MOTION_DETECT:
+            return 1.0f;
+        default:
+            // fall through and return 0 for all other types
+            break;
+    }
+    return 0.0f;
+}
+
 HidlServiceRegistrationWaiter::HidlServiceRegistrationWaiter() {
 }
 
diff --git a/services/sensorservice/SensorDeviceUtils.h b/services/sensorservice/SensorDeviceUtils.h
index e2eb606..d7e621c 100644
--- a/services/sensorservice/SensorDeviceUtils.h
+++ b/services/sensorservice/SensorDeviceUtils.h
@@ -18,7 +18,9 @@
 #define ANDROID_SENSOR_DEVICE_UTIL
 
 #include <android/hidl/manager/1.0/IServiceNotification.h>
+#include <hardware/sensors.h>
 
+#include <cmath>
 #include <condition_variable>
 #include <thread>
 
@@ -29,6 +31,21 @@
 namespace android {
 namespace SensorDeviceUtils {
 
+// Quantizes a single value using a sensor's resolution.
+inline void quantizeValue(float *value, double resolution) {
+    // Increase the value of the sensor's nominal resolution to ensure that
+    // sensor accuracy improvements, like runtime calibration, are not masked
+    // during requantization.
+    double incRes = 0.25 * resolution;
+    *value = round(static_cast<double>(*value) / incRes) * incRes;
+}
+
+// Ensures a sensor event doesn't provide values finer grained than its sensor resolution allows.
+void quantizeSensorEventValues(sensors_event_t *event, float resolution);
+
+// Provides a default resolution for simple sensor types if one wasn't provided by the HAL.
+float defaultResolutionForType(int type);
+
 class HidlServiceRegistrationWaiter : public IServiceNotification {
 public:
 
diff --git a/services/sensorservice/SensorDirectConnection.cpp b/services/sensorservice/SensorDirectConnection.cpp
index 1622e77..e4c33da 100644
--- a/services/sensorservice/SensorDirectConnection.cpp
+++ b/services/sensorservice/SensorDirectConnection.cpp
@@ -93,21 +93,16 @@
     return nullptr;
 }
 
-void SensorService::SensorDirectConnection::updateSensorSubscriptions() {
-    if (!hasSensorAccess()) {
+void SensorService::SensorDirectConnection::onSensorAccessChanged(bool hasAccess) {
+    if (!hasAccess) {
         stopAll(true /* backupRecord */);
     } else {
         recoverAll();
     }
 }
 
-void SensorService::SensorDirectConnection::setSensorAccess(bool hasAccess) {
-    mHasSensorAccess = hasAccess;
-    updateSensorSubscriptions();
-}
-
 bool SensorService::SensorDirectConnection::hasSensorAccess() const {
-    return mHasSensorAccess && !mService->mSensorPrivacyPolicy->isSensorPrivacyEnabled();
+    return mService->hasSensorAccess(mUid, mOpPackageName);
 }
 
 status_t SensorService::SensorDirectConnection::enableDisable(
@@ -142,7 +137,7 @@
         return NO_ERROR;
     }
 
-    if (!mService->isOperationPermitted(mOpPackageName)) {
+    if (!hasSensorAccess()) {
         return PERMISSION_DENIED;
     }
 
@@ -186,12 +181,15 @@
 }
 
 void SensorService::SensorDirectConnection::stopAll(bool backupRecord) {
+    Mutex::Autolock _l(mConnectionLock);
+    stopAllLocked(backupRecord);
+}
 
+void SensorService::SensorDirectConnection::stopAllLocked(bool backupRecord) {
     struct sensors_direct_cfg_t config = {
         .rate_level = SENSOR_DIRECT_RATE_STOP
     };
 
-    Mutex::Autolock _l(mConnectionLock);
     SensorDevice& dev(SensorDevice::getInstance());
     for (auto &i : mActivated) {
         dev.configureDirectChannel(i.first, getHalChannelHandle(), &config);
@@ -204,21 +202,25 @@
 }
 
 void SensorService::SensorDirectConnection::recoverAll() {
-    stopAll(false);
-
     Mutex::Autolock _l(mConnectionLock);
-    SensorDevice& dev(SensorDevice::getInstance());
+    if (!mActivatedBackup.empty()) {
+        stopAllLocked(false);
 
-    // recover list of report from backup
-    mActivated = mActivatedBackup;
-    mActivatedBackup.clear();
+        SensorDevice& dev(SensorDevice::getInstance());
 
-    // re-enable them
-    for (auto &i : mActivated) {
-        struct sensors_direct_cfg_t config = {
-            .rate_level = i.second
-        };
-        dev.configureDirectChannel(i.first, getHalChannelHandle(), &config);
+        // recover list of report from backup
+        ALOG_ASSERT(mActivated.empty(),
+                    "mActivated must be empty if mActivatedBackup was non-empty");
+        mActivated = mActivatedBackup;
+        mActivatedBackup.clear();
+
+        // re-enable them
+        for (auto &i : mActivated) {
+            struct sensors_direct_cfg_t config = {
+                .rate_level = i.second
+            };
+            dev.configureDirectChannel(i.first, getHalChannelHandle(), &config);
+        }
     }
 }
 
diff --git a/services/sensorservice/SensorDirectConnection.h b/services/sensorservice/SensorDirectConnection.h
index fa88fbc..4181b65 100644
--- a/services/sensorservice/SensorDirectConnection.h
+++ b/services/sensorservice/SensorDirectConnection.h
@@ -42,21 +42,15 @@
     void dump(String8& result) const;
     void dump(util::ProtoOutputStream* proto) const;
     uid_t getUid() const { return mUid; }
+    const String16& getOpPackageName() const { return mOpPackageName; }
     int32_t getHalChannelHandle() const;
     bool isEquivalent(const sensors_direct_mem_t *mem) const;
 
-    // stop all active sensor report. if backupRecord is set to false,
-    // those report can be recovered by recoverAll
-    // called by SensorService when enter restricted mode
-    void stopAll(bool backupRecord = false);
+    // Invoked when access to sensors for this connection has changed, e.g. lost or
+    // regained due to changes in the sensor restricted/privacy mode or the
+    // app changed to idle/active status.
+    void onSensorAccessChanged(bool hasAccess);
 
-    // recover sensor reports previously stopped by stopAll(true)
-    // called by SensorService when return to NORMAL mode.
-    void recoverAll();
-
-    void updateSensorSubscriptions();
-
-    void setSensorAccess(bool hasAccess);
 protected:
     virtual ~SensorDirectConnection();
     // ISensorEventConnection functions
@@ -70,6 +64,24 @@
     virtual void destroy();
 private:
     bool hasSensorAccess() const;
+
+    // Stops all active sensor direct report requests.
+    //
+    // If backupRecord is true, stopped requests can be recovered
+    // by a subsequent recoverAll() call (e.g. when temporarily stopping
+    // sensors for sensor privacy/restrict mode or when an app becomes
+    // idle).
+    void stopAll(bool backupRecord = false);
+    // Same as stopAll() but with mConnectionLock held.
+    void stopAllLocked(bool backupRecord);
+
+    // Recover sensor requests previously stopped by stopAll(true).
+    // This method can be called when a sensor access resumes (e.g.
+    // sensor privacy/restrict mode lifted or app becomes active).
+    //
+    // If no requests are backed up by stopAll(), this method is no-op.
+    void recoverAll();
+
     const sp<SensorService> mService;
     const uid_t mUid;
     const sensors_direct_mem_t mMem;
@@ -80,8 +92,6 @@
     std::unordered_map<int, int> mActivated;
     std::unordered_map<int, int> mActivatedBackup;
 
-    std::atomic_bool mHasSensorAccess = true;
-
     mutable Mutex mDestroyLock;
     bool mDestroyed;
 };
diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index 5be4ccd..ccf05d9 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-#include <cinttypes>
 #include <sys/socket.h>
 #include <utils/threads.h>
 
@@ -32,12 +31,11 @@
 
 SensorService::SensorEventConnection::SensorEventConnection(
         const sp<SensorService>& service, uid_t uid, String8 packageName, bool isDataInjectionMode,
-        const String16& opPackageName, bool hasSensorAccess)
+        const String16& opPackageName)
     : mService(service), mUid(uid), mWakeLockRefCount(0), mHasLooperCallbacks(false),
       mDead(false), mDataInjectionMode(isDataInjectionMode), mEventCache(nullptr),
       mCacheSize(0), mMaxCacheSize(0), mTimeOfLastEventDrop(0), mEventsDropped(0),
-      mPackageName(packageName), mOpPackageName(opPackageName), mDestroyed(false),
-      mHasSensorAccess(hasSensorAccess) {
+      mPackageName(packageName), mOpPackageName(opPackageName), mDestroyed(false) {
     mChannel = new BitTube(mService->mSocketBufferSize);
 #if DEBUG_CONNECTIONS
     mEventsReceived = mEventsSentFromCache = mEventsSent = 0;
@@ -70,16 +68,17 @@
 }
 
 bool SensorService::SensorEventConnection::needsWakeLock() {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     return !mDead && mWakeLockRefCount > 0;
 }
 
 void SensorService::SensorEventConnection::resetWakeLockRefCount() {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     mWakeLockRefCount = 0;
 }
 
 void SensorService::SensorEventConnection::dump(String8& result) {
+    Mutex::Autolock _l(mConnectionLock);
     result.appendFormat("\tOperating Mode: ");
     if (!mService->isWhiteListedPackage(getPackageName())) {
         result.append("RESTRICTED\n");
@@ -91,10 +90,8 @@
     result.appendFormat("\t %s | WakeLockRefCount %d | uid %d | cache size %d | "
             "max cache size %d\n", mPackageName.string(), mWakeLockRefCount, mUid, mCacheSize,
             mMaxCacheSize);
-
-    std::lock_guard<std::mutex> _l(mConnectionLock);
     for (auto& it : mSensorInfo) {
-        const FlushInfo& flushInfo = it.second.flushInfo;
+        const FlushInfo& flushInfo = it.second;
         result.appendFormat("\t %s 0x%08x | status: %s | pending flush events %d \n",
                             mService->getSensorName(it.first).string(),
                             it.first,
@@ -123,7 +120,7 @@
  */
 void SensorService::SensorEventConnection::dump(util::ProtoOutputStream* proto) const {
     using namespace service::SensorEventConnectionProto;
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
 
     if (!mService->isWhiteListedPackage(getPackageName())) {
         proto->write(OPERATING_MODE, OP_MODE_RESTRICTED);
@@ -138,7 +135,7 @@
     proto->write(CACHE_SIZE, int32_t(mCacheSize));
     proto->write(MAX_CACHE_SIZE, int32_t(mMaxCacheSize));
     for (auto& it : mSensorInfo) {
-        const FlushInfo& flushInfo = it.second.flushInfo;
+        const FlushInfo& flushInfo = it.second;
         const uint64_t token = proto->start(FLUSH_INFOS);
         proto->write(FlushInfoProto::SENSOR_NAME,
                 std::string(mService->getSensorName(it.first)));
@@ -159,33 +156,28 @@
 #endif
 }
 
-bool SensorService::SensorEventConnection::addSensor(
-    int32_t handle, nsecs_t samplingPeriodNs, nsecs_t maxBatchReportLatencyNs, int reservedFlags) {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+bool SensorService::SensorEventConnection::addSensor(int32_t handle) {
+    Mutex::Autolock _l(mConnectionLock);
     sp<SensorInterface> si = mService->getSensorInterfaceFromHandle(handle);
     if (si == nullptr ||
         !canAccessSensor(si->getSensor(), "Tried adding", mOpPackageName) ||
         mSensorInfo.count(handle) > 0) {
         return false;
     }
-
-    SensorRequest request = {
-      .samplingPeriodNs = samplingPeriodNs,
-      .maxBatchReportLatencyNs = maxBatchReportLatencyNs,
-      .reservedFlags = reservedFlags
-    };
-
-    mSensorInfo[handle] = request;
+    mSensorInfo[handle] = FlushInfo();
     return true;
 }
 
 bool SensorService::SensorEventConnection::removeSensor(int32_t handle) {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
-    return mSensorInfo.erase(handle) > 0;
+    Mutex::Autolock _l(mConnectionLock);
+    if (mSensorInfo.erase(handle) >= 0) {
+        return true;
+    }
+    return false;
 }
 
 std::vector<int32_t> SensorService::SensorEventConnection::getActiveSensorHandles() const {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     std::vector<int32_t> list;
     for (auto& it : mSensorInfo) {
         list.push_back(it.first);
@@ -194,19 +186,17 @@
 }
 
 bool SensorService::SensorEventConnection::hasSensor(int32_t handle) const {
-    std::lock_guard<std::recursive_mutex> _backlock(mBackupLock);
-    std::lock_guard<std::mutex> _lock(mConnectionLock);
-    return mSensorInfo.count(handle) + mSensorInfoBackup.count(handle) > 0;
+    Mutex::Autolock _l(mConnectionLock);
+    return mSensorInfo.count(handle) > 0;
 }
 
 bool SensorService::SensorEventConnection::hasAnySensor() const {
-    std::lock_guard<std::recursive_mutex> _backlock(mBackupLock);
-    std::lock_guard<std::mutex> _lock(mConnectionLock);
-    return mSensorInfo.size() + mSensorInfoBackup.size() ? true : false;
+    Mutex::Autolock _l(mConnectionLock);
+    return mSensorInfo.size() ? true : false;
 }
 
 bool SensorService::SensorEventConnection::hasOneShotSensors() const {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     for (auto &it : mSensorInfo) {
         const int handle = it.first;
         sp<SensorInterface> si = mService->getSensorInterfaceFromHandle(handle);
@@ -223,15 +213,15 @@
 
 void SensorService::SensorEventConnection::setFirstFlushPending(int32_t handle,
                                 bool value) {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     if (mSensorInfo.count(handle) > 0) {
-        FlushInfo& flushInfo = mSensorInfo[handle].flushInfo;
+        FlushInfo& flushInfo = mSensorInfo[handle];
         flushInfo.mFirstFlushPending = value;
     }
 }
 
 void SensorService::SensorEventConnection::updateLooperRegistration(const sp<Looper>& looper) {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     updateLooperRegistrationLocked(looper);
 }
 
@@ -282,9 +272,9 @@
 }
 
 void SensorService::SensorEventConnection::incrementPendingFlushCount(int32_t handle) {
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     if (mSensorInfo.count(handle) > 0) {
-        FlushInfo& flushInfo = mSensorInfo[handle].flushInfo;
+        FlushInfo& flushInfo = mSensorInfo[handle];
         flushInfo.mPendingFlushEventsToSend++;
     }
 }
@@ -298,7 +288,7 @@
     std::unique_ptr<sensors_event_t[]> sanitizedBuffer;
 
     int count = 0;
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     if (scratch) {
         size_t i=0;
         while (i<numEvents) {
@@ -319,7 +309,7 @@
                 continue;
             }
 
-            FlushInfo& flushInfo = mSensorInfo[sensor_handle].flushInfo;
+            FlushInfo& flushInfo = mSensorInfo[sensor_handle];
             // Check if there is a pending flush_complete event for this sensor on this connection.
             if (buffer[i].type == SENSOR_TYPE_META_DATA && flushInfo.mFirstFlushPending == true &&
                     mapFlushEventsToConnections[i] == this) {
@@ -440,66 +430,9 @@
     return size < 0 ? status_t(size) : status_t(NO_ERROR);
 }
 
-void SensorService::SensorEventConnection::updateSensorSubscriptions() {
-    if (!hasSensorAccess()) {
-        stopAll();
-    } else {
-        recoverAll();
-    }
-}
-
-void SensorService::SensorEventConnection::setSensorAccess(const bool hasAccess) {
-    if (mHasSensorAccess != hasAccess) {
-        mHasSensorAccess = hasAccess;
-        updateSensorSubscriptions();
-    }
-}
-
-void SensorService::SensorEventConnection::stopAll() {
-    bool backupPerformed = false;
-    std::lock_guard<std::recursive_mutex> _backlock(mBackupLock);
-    {
-        std::lock_guard<std::mutex> _lock(mConnectionLock);
-        if (!mSensorInfo.empty()) {
-            mSensorInfoBackup = mSensorInfo;
-            mSensorInfo.clear();
-            backupPerformed = true;
-        }
-    }
-
-    if (backupPerformed) {
-        for (auto& it : mSensorInfoBackup) {
-            int32_t handle = it.first;
-
-            status_t err =  mService->disable(this, handle);
-
-            if (err != NO_ERROR) {
-                ALOGE("Error disabling sensor %d", handle);
-            }
-        }
-    }
-}
-
-void SensorService::SensorEventConnection::recoverAll() {
-    std::lock_guard<std::recursive_mutex> _l(mBackupLock);
-    for (auto& it : mSensorInfoBackup) {
-        int32_t handle = it.first;
-        SensorRequest &request = it.second;
-
-        status_t err =  mService->enable(
-            this, handle, request.samplingPeriodNs, request.maxBatchReportLatencyNs,
-            request.reservedFlags, mOpPackageName);
-
-        if (err != NO_ERROR) {
-            ALOGE("Error recovering sensor %d", handle);
-        }
-    }
-
-    mSensorInfoBackup.clear();
-}
-
 bool SensorService::SensorEventConnection::hasSensorAccess() {
-    return mHasSensorAccess && !mService->mSensorPrivacyPolicy->isSensorPrivacyEnabled();
+    return mService->isUidActive(mUid)
+        && !mService->mSensorPrivacyPolicy->isSensorPrivacyEnabled();
 }
 
 bool SensorService::SensorEventConnection::noteOpIfRequired(const sensors_event_t& event) {
@@ -597,7 +530,7 @@
             continue;
         }
 
-        FlushInfo& flushInfo = it.second.flushInfo;
+        FlushInfo& flushInfo = it.second;
         while (flushInfo.mPendingFlushEventsToSend > 0) {
             flushCompleteEvent.meta_data.sensor = handle;
             bool wakeUpSensor = si->getSensor().isWakeUpSensor();
@@ -622,7 +555,7 @@
     // half the size of the socket buffer allocated in BitTube whichever is smaller.
     const int maxWriteSize = helpers::min(SensorEventQueue::MAX_RECEIVE_BUFFER_EVENT_COUNT/2,
             int(mService->mSocketBufferSize/(sizeof(sensors_event_t)*2)));
-    std::lock_guard<std::mutex> _l(mConnectionLock);
+    Mutex::Autolock _l(mConnectionLock);
     // Send pending flush complete events (if any)
     sendPendingFlushEventsLocked();
     for (int numEventsSent = 0; numEventsSent < mCacheSize;) {
@@ -689,7 +622,7 @@
                 continue;
             }
 
-            FlushInfo& flushInfo = mSensorInfo[scratch[j].meta_data.sensor].flushInfo;
+            FlushInfo& flushInfo = mSensorInfo[scratch[j].meta_data.sensor];
             flushInfo.mPendingFlushEventsToSend++;
             ALOGD_IF(DEBUG_CONNECTIONS, "increment pendingFlushCount %d",
                      flushInfo.mPendingFlushEventsToSend);
@@ -725,21 +658,13 @@
     } else {
         err = mService->disable(this, handle);
     }
-
     return err;
 }
 
 status_t SensorService::SensorEventConnection::setEventRate(
         int handle, nsecs_t samplingPeriodNs)
 {
-    status_t err = mService->setEventRate(this, handle, samplingPeriodNs, mOpPackageName);
-
-    std::lock_guard<std::mutex> _l(mConnectionLock);
-    if (err == NO_ERROR && mSensorInfo.count(handle) > 0) {
-        mSensorInfo[handle].samplingPeriodNs = samplingPeriodNs;
-    }
-
-    return err;
+    return mService->setEventRate(this, handle, samplingPeriodNs, mOpPackageName);
 }
 
 status_t  SensorService::SensorEventConnection::flush() {
@@ -760,7 +685,7 @@
             // and remove the fd from Looper. Call checkWakeLockState to know if SensorService
             // can release the wake-lock.
             ALOGD_IF(DEBUG_CONNECTIONS, "%p Looper error %d", this, fd);
-            std::lock_guard<std::mutex> _l(mConnectionLock);
+            Mutex::Autolock _l(mConnectionLock);
             mDead = true;
             mWakeLockRefCount = 0;
             updateLooperRegistrationLocked(mService->getLooper());
@@ -779,7 +704,7 @@
         unsigned char buf[sizeof(sensors_event_t)];
         ssize_t numBytesRead = ::recv(fd, buf, sizeof(buf), MSG_DONTWAIT);
         {
-            std::lock_guard<std::mutex> _l(mConnectionLock);
+            Mutex::Autolock _l(mConnectionLock);
             if (numBytesRead == sizeof(sensors_event_t)) {
                 if (!mDataInjectionMode) {
                     ALOGE("Data injected in normal mode, dropping event"
diff --git a/services/sensorservice/SensorEventConnection.h b/services/sensorservice/SensorEventConnection.h
index 80e7431..13cee6f 100644
--- a/services/sensorservice/SensorEventConnection.h
+++ b/services/sensorservice/SensorEventConnection.h
@@ -49,16 +49,14 @@
 
 public:
     SensorEventConnection(const sp<SensorService>& service, uid_t uid, String8 packageName,
-                          bool isDataInjectionMode, const String16& opPackageName,
-                          bool hasSensorAccess);
+                          bool isDataInjectionMode, const String16& opPackageName);
 
     status_t sendEvents(sensors_event_t const* buffer, size_t count, sensors_event_t* scratch,
                         wp<const SensorEventConnection> const * mapFlushEventsToConnections = nullptr);
     bool hasSensor(int32_t handle) const;
     bool hasAnySensor() const;
     bool hasOneShotSensors() const;
-    bool addSensor(
-        int32_t handle, nsecs_t samplingPeriodNs, nsecs_t maxBatchReportLatencyNs, int reservedFlags);
+    bool addSensor(int32_t handle);
     bool removeSensor(int32_t handle);
     std::vector<int32_t> getActiveSensorHandles() const;
     void setFirstFlushPending(int32_t handle, bool value);
@@ -70,8 +68,6 @@
 
     uid_t getUid() const { return mUid; }
 
-    void setSensorAccess(const bool hasAccess);
-    void updateSensorSubscriptions();
 private:
     virtual ~SensorEventConnection();
     virtual void onFirstRef();
@@ -137,22 +133,13 @@
     // privacy not being enabled.
     bool hasSensorAccess();
 
-    void stopAll();
-    void recoverAll();
-
     // Call noteOp for the sensor if the sensor requires a permission
     bool noteOpIfRequired(const sensors_event_t& event);
 
     sp<SensorService> const mService;
     sp<BitTube> mChannel;
     uid_t mUid;
-
-    // A lock that should be used when modifying mSensorInfo
-    mutable std::mutex mConnectionLock;
-
-    // A lock that should be used when modifying mSensorInfoBackup
-    mutable std::recursive_mutex mBackupLock;
-
+    mutable Mutex mConnectionLock;
     // Number of events from wake up sensors which are still pending and haven't been delivered to
     // the corresponding application. It is incremented by one unit for each write to the socket.
     uint32_t mWakeLockRefCount;
@@ -179,17 +166,8 @@
 
         FlushInfo() : mPendingFlushEventsToSend(0), mFirstFlushPending(false) {}
     };
-
-    struct SensorRequest {
-      nsecs_t samplingPeriodNs;
-      nsecs_t maxBatchReportLatencyNs;
-      int reservedFlags;
-      FlushInfo flushInfo;
-    };
-
     // protected by SensorService::mLock. Key for this map is the sensor handle.
-    std::unordered_map<int32_t, SensorRequest> mSensorInfo;
-    std::unordered_map<int32_t, SensorRequest> mSensorInfoBackup;
+    std::unordered_map<int32_t, FlushInfo> mSensorInfo;
 
     sensors_event_t *mEventCache;
     int mCacheSize, mMaxCacheSize;
@@ -204,7 +182,6 @@
 
     mutable Mutex mDestroyLock;
     bool mDestroyed;
-    std::atomic_bool mHasSensorAccess;
 
     // Store a mapping of sensor handles to required AppOp for a sensor. This map only contains a
     // valid mapping for sensors that require a permission in order to reduce the lookup time.
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 29df825..ffcd0a0 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -299,26 +299,33 @@
     }
 }
 
-void SensorService::setSensorAccess(uid_t uid, bool hasAccess) {
+void SensorService::onUidStateChanged(uid_t uid, UidState state) {
+    SensorDevice& dev(SensorDevice::getInstance());
+
     ConnectionSafeAutolock connLock = mConnectionHolder.lock(mLock);
-    const auto& connections = connLock.getActiveConnections();
-    const auto& directConnections = connLock.getDirectConnections();
-
-    mLock.unlock();
-    for (const sp<SensorEventConnection>& conn : connections) {
+    for (const sp<SensorEventConnection>& conn : connLock.getActiveConnections()) {
         if (conn->getUid() == uid) {
-            conn->setSensorAccess(hasAccess);
+            dev.setUidStateForConnection(conn.get(), state);
         }
     }
 
-    for (const sp<SensorDirectConnection>& conn : directConnections) {
+    for (const sp<SensorDirectConnection>& conn : connLock.getDirectConnections()) {
         if (conn->getUid() == uid) {
-            conn->setSensorAccess(hasAccess);
+            // Update sensor subscriptions if needed
+            bool hasAccess = hasSensorAccessLocked(conn->getUid(), conn->getOpPackageName());
+            conn->onSensorAccessChanged(hasAccess);
         }
     }
+}
 
-    // Lock the mutex again for clean shutdown
-    mLock.lock();
+bool SensorService::hasSensorAccess(uid_t uid, const String16& opPackageName) {
+    Mutex::Autolock _l(mLock);
+    return hasSensorAccessLocked(uid, opPackageName);
+}
+
+bool SensorService::hasSensorAccessLocked(uid_t uid, const String16& opPackageName) {
+    return !mSensorPrivacyPolicy->isSensorPrivacyEnabled()
+        && isUidActive(uid) && !isOperationRestrictedLocked(opPackageName);
 }
 
 const Sensor& SensorService::registerSensor(SensorInterface* s, bool isDebug, bool isVirtual) {
@@ -651,11 +658,9 @@
 
 void SensorService::disableAllSensorsLocked(ConnectionSafeAutolock* connLock) {
     SensorDevice& dev(SensorDevice::getInstance());
-    for (const sp<SensorEventConnection>& connection : connLock->getActiveConnections()) {
-        connection->updateSensorSubscriptions();
-    }
-    for (const sp<SensorDirectConnection>& connection : connLock->getDirectConnections()) {
-        connection->updateSensorSubscriptions();
+    for (const sp<SensorDirectConnection>& conn : connLock->getDirectConnections()) {
+        bool hasAccess = hasSensorAccessLocked(conn->getUid(), conn->getOpPackageName());
+        conn->onSensorAccessChanged(hasAccess);
     }
     dev.disableAllSensors();
     // Clear all pending flush connections for all active sensors. If one of the active
@@ -682,11 +687,9 @@
     }
     SensorDevice& dev(SensorDevice::getInstance());
     dev.enableAllSensors();
-    for (const sp<SensorEventConnection>& connection : connLock->getActiveConnections()) {
-        connection->updateSensorSubscriptions();
-    }
-    for (const sp<SensorDirectConnection>& connection : connLock->getDirectConnections()) {
-        connection->updateSensorSubscriptions();
+    for (const sp<SensorDirectConnection>& conn : connLock->getDirectConnections()) {
+        bool hasAccess = hasSensorAccessLocked(conn->getUid(), conn->getOpPackageName());
+        conn->onSensorAccessChanged(hasAccess);
     }
 }
 
@@ -1253,9 +1256,8 @@
             (packageName == "") ? String8::format("unknown_package_pid_%d", pid) : packageName;
     String16 connOpPackageName =
             (opPackageName == String16("")) ? String16(connPackageName) : opPackageName;
-    bool hasSensorAccess = mUidPolicy->isUidActive(uid);
     sp<SensorEventConnection> result(new SensorEventConnection(this, uid, connPackageName,
-            requestedMode == DATA_INJECTION, connOpPackageName, hasSensorAccess));
+            requestedMode == DATA_INJECTION, connOpPackageName));
     if (requestedMode == DATA_INJECTION) {
         mConnectionHolder.addEventConnectionIfNotPresent(result);
         // Add the associated file descriptor to the Looper for polling whenever there is data to
@@ -1608,7 +1610,7 @@
         }
     }
 
-    if (connection->addSensor(handle, samplingPeriodNs, maxBatchReportLatencyNs, reservedFlags)) {
+    if (connection->addSensor(handle)) {
         BatteryService::enableSensor(connection->getUid(), handle);
         // the sensor was added (which means it wasn't already there)
         // so, see if this connection becomes active
@@ -1758,22 +1760,17 @@
     const int halVersion = dev.getHalDeviceVersion();
     status_t err(NO_ERROR);
     Mutex::Autolock _l(mLock);
-
-    size_t numSensors = 0;
     // Loop through all sensors for this connection and call flush on each of them.
     for (int handle : connection->getActiveSensorHandles()) {
         sp<SensorInterface> sensor = getSensorInterfaceFromHandle(handle);
         if (sensor == nullptr) {
             continue;
         }
-        numSensors++;
-
         if (sensor->getSensor().getReportingMode() == AREPORTING_MODE_ONE_SHOT) {
             ALOGE("flush called on a one-shot sensor");
             err = INVALID_OPERATION;
             continue;
         }
-
         if (halVersion <= SENSORS_DEVICE_API_VERSION_1_0 || isVirtualSensor(handle)) {
             // For older devices just increment pending flush count which will send a trivial
             // flush complete event.
@@ -1791,8 +1788,7 @@
             err = (err_flush != NO_ERROR) ? err_flush : err;
         }
     }
-
-    return (numSensors == 0) ? INVALID_OPERATION : err;
+    return err;
 }
 
 bool SensorService::canAccessSensor(const Sensor& sensor, const char* operation,
@@ -1912,13 +1908,12 @@
     return (packageName.contains(mWhiteListedPackage.string()));
 }
 
-bool SensorService::isOperationPermitted(const String16& opPackageName) {
-    Mutex::Autolock _l(mLock);
+bool SensorService::isOperationRestrictedLocked(const String16& opPackageName) {
     if (mCurrentOperatingMode == RESTRICTED) {
         String8 package(opPackageName);
-        return isWhiteListedPackage(package);
+        return !isWhiteListedPackage(package);
     }
-    return true;
+    return false;
 }
 
 void SensorService::UidPolicy::registerSelf() {
@@ -1946,7 +1941,7 @@
     }
     sp<SensorService> service = mService.promote();
     if (service != nullptr) {
-        service->setSensorAccess(uid, true);
+        service->onUidStateChanged(uid, UID_STATE_ACTIVE);
     }
 }
 
@@ -1961,7 +1956,7 @@
     if (deleted) {
         sp<SensorService> service = mService.promote();
         if (service != nullptr) {
-            service->setSensorAccess(uid, false);
+            service->onUidStateChanged(uid, UID_STATE_IDLE);
         }
     }
 }
@@ -1989,7 +1984,7 @@
     if (wasActive != isActive) {
         sp<SensorService> service = mService.promote();
         if (service != nullptr) {
-            service->setSensorAccess(uid, isActive);
+            service->onUidStateChanged(uid, isActive ? UID_STATE_ACTIVE : UID_STATE_IDLE);
         }
     }
 }
@@ -2015,6 +2010,10 @@
     return mActiveUids.find(uid) != mActiveUids.end();
 }
 
+bool SensorService::isUidActive(uid_t uid) {
+    return mUidPolicy->isUidActive(uid);
+}
+
 void SensorService::SensorPrivacyPolicy::registerSelf() {
     SensorPrivacyManager spm;
     mSensorPrivacyEnabled = spm.isSensorPrivacyEnabled();
diff --git a/services/sensorservice/SensorService.h b/services/sensorservice/SensorService.h
index 7d17dda..3bb8421 100644
--- a/services/sensorservice/SensorService.h
+++ b/services/sensorservice/SensorService.h
@@ -75,6 +75,11 @@
     class SensorDirectConnection;
 
 public:
+    enum UidState {
+      UID_STATE_ACTIVE = 0,
+      UID_STATE_IDLE,
+    };
+
     void cleanupConnection(SensorEventConnection* connection);
     void cleanupConnection(SensorDirectConnection* c);
 
@@ -194,6 +199,8 @@
             std::unordered_map<uid_t, bool> mOverrideUids;
     };
 
+    bool isUidActive(uid_t uid);
+
     // Sensor privacy allows a user to disable access to all sensors on the device. When
     // enabled sensor privacy will prevent all apps, including active apps, from accessing
     // sensors, they will not receive trigger nor on-change events, flush event behavior
@@ -332,7 +339,11 @@
     // allowed to register for or call flush on sensors. Typically only cts test packages are
     // allowed.
     bool isWhiteListedPackage(const String8& packageName);
-    bool isOperationPermitted(const String16& opPackageName);
+
+    // Returns true if a connection with the specified opPackageName has no access to sensors
+    // in the RESTRICTED mode (i.e. the service is in RESTRICTED mode, and the package is not
+    // whitelisted). mLock must be held to invoke this method.
+    bool isOperationRestrictedLocked(const String16& opPackageName);
 
     // Reset the state of SensorService to NORMAL mode.
     status_t resetToNormalMode();
@@ -349,7 +360,13 @@
     void enableSchedFifoMode();
 
     // Sets whether the given UID can get sensor data
-    void setSensorAccess(uid_t uid, bool hasAccess);
+    void onUidStateChanged(uid_t uid, UidState state);
+
+    // Returns true if a connection with the given uid and opPackageName
+    // currently has access to sensors.
+    bool hasSensorAccess(uid_t uid, const String16& opPackageName);
+    // Same as hasSensorAccess but with mLock held.
+    bool hasSensorAccessLocked(uid_t uid, const String16& opPackageName);
 
     // Overrides the UID state as if it is idle
     status_t handleSetUidState(Vector<String16>& args, int err);
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index c6f1f7e..fce0971 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -44,7 +44,6 @@
         "libGLESv1_CM",
         "libGLESv2",
         "libgui",
-        "libhardware",
         "libhidlbase",
         "liblayers_proto",
         "liblog",
diff --git a/services/surfaceflinger/BufferLayer.cpp b/services/surfaceflinger/BufferLayer.cpp
index 5f90566..5b28384 100644
--- a/services/surfaceflinger/BufferLayer.cpp
+++ b/services/surfaceflinger/BufferLayer.cpp
@@ -294,6 +294,7 @@
     auto* compositionState = editCompositionState();
     if (compositionState->sidebandStream.get()) {
         compositionState->compositionType = Hwc2::IComposerClient::Composition::SIDEBAND;
+        return;
     } else {
         // Normal buffer layers
         compositionState->hdrMetadata = mBufferInfo.mHdrMetadata;
@@ -301,6 +302,12 @@
                 ? Hwc2::IComposerClient::Composition::CURSOR
                 : Hwc2::IComposerClient::Composition::DEVICE;
     }
+
+    compositionState->buffer = mBufferInfo.mBuffer;
+    compositionState->bufferSlot = (mBufferInfo.mBufferSlot == BufferQueue::INVALID_BUFFER_SLOT)
+            ? 0
+            : mBufferInfo.mBufferSlot;
+    compositionState->acquireFence = mBufferInfo.mFence;
 }
 
 bool BufferLayer::onPreComposition(nsecs_t refreshStartTime) {
@@ -490,10 +497,6 @@
         }
     }
 
-    if (recomputeVisibleRegions == true) {
-        maybeDirtyInput();
-    }
-
     return true;
 }
 
diff --git a/services/surfaceflinger/BufferQueueLayer.cpp b/services/surfaceflinger/BufferQueueLayer.cpp
index c84b15d..f4e630e 100644
--- a/services/surfaceflinger/BufferQueueLayer.cpp
+++ b/services/surfaceflinger/BufferQueueLayer.cpp
@@ -365,21 +365,6 @@
     return NO_ERROR;
 }
 
-void BufferQueueLayer::preparePerFrameCompositionState() {
-    BufferLayer::preparePerFrameCompositionState();
-
-    auto* compositionState = editCompositionState();
-    if (compositionState->compositionType == Hwc2::IComposerClient::Composition::SIDEBAND) {
-        return;
-    }
-
-    compositionState->buffer = mBufferInfo.mBuffer;
-    compositionState->bufferSlot = (mBufferInfo.mBufferSlot == BufferQueue::INVALID_BUFFER_SLOT)
-            ? 0
-            : mBufferInfo.mBufferSlot;
-    compositionState->acquireFence = mBufferInfo.mFence;
-}
-
 // -----------------------------------------------------------------------
 // Interface implementation for BufferLayerConsumer::ContentsChangedListener
 // -----------------------------------------------------------------------
diff --git a/services/surfaceflinger/BufferQueueLayer.h b/services/surfaceflinger/BufferQueueLayer.h
index ea7f203..16b4b6e 100644
--- a/services/surfaceflinger/BufferQueueLayer.h
+++ b/services/surfaceflinger/BufferQueueLayer.h
@@ -82,7 +82,6 @@
     status_t updateActiveBuffer() override;
     status_t updateFrameNumber(nsecs_t latchTime) override;
 
-    void preparePerFrameCompositionState() override;
     sp<Layer> createClone() override;
 
     void onFrameAvailable(const BufferItem& item);
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 3e65171..a121ce0 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -631,19 +631,6 @@
     return NO_ERROR;
 }
 
-void BufferStateLayer::preparePerFrameCompositionState() {
-    BufferLayer::preparePerFrameCompositionState();
-
-    auto* compositionState = editCompositionState();
-    if (compositionState->compositionType == Hwc2::IComposerClient::Composition::SIDEBAND) {
-        return;
-    }
-
-    compositionState->buffer = mBufferInfo.mBuffer;
-    compositionState->bufferSlot = mBufferInfo.mBufferSlot;
-    compositionState->acquireFence = mBufferInfo.mFence;
-}
-
 void BufferStateLayer::HwcSlotGenerator::bufferErased(const client_cache_t& clientCacheId) {
     std::lock_guard lock(mMutex);
     if (!clientCacheId.isValid()) {
diff --git a/services/surfaceflinger/BufferStateLayer.h b/services/surfaceflinger/BufferStateLayer.h
index 753a742..5873a73 100644
--- a/services/surfaceflinger/BufferStateLayer.h
+++ b/services/surfaceflinger/BufferStateLayer.h
@@ -138,7 +138,6 @@
     status_t updateActiveBuffer() override;
     status_t updateFrameNumber(nsecs_t latchTime) override;
 
-    void preparePerFrameCompositionState() override;
     sp<Layer> createClone() override;
 
     // Crop that applies to the buffer
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
index d8ce629..8a9763b 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
@@ -33,13 +33,15 @@
 #include <ui/GraphicBuffer.h>
 #include <ui/GraphicTypes.h>
 
-#include "DisplayHardware/ComposerHal.h"
+#include "DisplayHardware/Hal.h"
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion"
 
 namespace android::compositionengine {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 // More complex metadata for this layer
 struct GenericLayerMetadataEntry {
     // True if the metadata may affect the composed result.
@@ -108,7 +110,7 @@
     Region transparentRegionHint;
 
     // The blend mode for this layer
-    Hwc2::IComposerClient::BlendMode blendMode{Hwc2::IComposerClient::BlendMode::INVALID};
+    hal::BlendMode blendMode{hal::BlendMode::INVALID};
 
     // The bounds of the layer in layer local coordinates
     FloatRect geomLayerBounds;
@@ -145,7 +147,7 @@
      */
 
     // The type of composition for this layer
-    Hwc2::IComposerClient::Composition compositionType{Hwc2::IComposerClient::Composition::INVALID};
+    hal::Composition compositionType{hal::Composition::INVALID};
 
     // The buffer and related state
     sp<GraphicBuffer> buffer;
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h
index a5711a3..baf5258 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h
@@ -34,11 +34,13 @@
 
 #include "DisplayHardware/DisplayIdentification.h"
 
+namespace android {
+
 namespace HWC2 {
 class Layer;
 } // namespace HWC2
 
-namespace android::compositionengine {
+namespace compositionengine {
 
 class DisplayColorProfile;
 class LayerFE;
@@ -280,4 +282,5 @@
     virtual void cacheClientCompositionRequests(uint32_t cacheSize) = 0;
 };
 
-} // namespace android::compositionengine
+} // namespace compositionengine
+} // namespace android
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/OutputLayer.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/OutputLayer.h
index 007b0e8..cf77738 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/OutputLayer.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/OutputLayer.h
@@ -31,12 +31,12 @@
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion"
 
+namespace android {
+
 namespace HWC2 {
 class Layer;
 } // namespace HWC2
 
-namespace android {
-
 namespace compositionengine {
 
 class CompositionEngine;
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h
index b0a9bc9..75394fa 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h
@@ -36,12 +36,12 @@
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion"
 
+namespace android {
+
 namespace HWC2 {
 class Layer;
 } // namespace HWC2
 
-namespace android {
-
 class HWComposer;
 
 namespace compositionengine::impl {
diff --git a/services/surfaceflinger/CompositionEngine/src/Display.cpp b/services/surfaceflinger/CompositionEngine/src/Display.cpp
index 308ec5a..ab26939 100644
--- a/services/surfaceflinger/CompositionEngine/src/Display.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Display.cpp
@@ -269,8 +269,8 @@
 
 bool Display::getSkipColorTransform() const {
     const auto& hwc = getCompositionEngine().getHwComposer();
-    return mId ? hwc.hasDisplayCapability(*mId, HWC2::DisplayCapability::SkipClientColorTransform)
-               : hwc.hasCapability(HWC2::Capability::SkipClientColorTransform);
+    return mId ? hwc.hasDisplayCapability(*mId, hal::DisplayCapability::SKIP_CLIENT_COLOR_TRANSFORM)
+               : hwc.hasCapability(hal::Capability::SKIP_CLIENT_COLOR_TRANSFORM);
 }
 
 bool Display::anyLayersRequireClientComposition() const {
@@ -306,7 +306,7 @@
 void Display::applyDisplayRequests(const DisplayRequests& displayRequests) {
     auto& state = editState();
     state.flipClientTarget = (static_cast<uint32_t>(displayRequests) &
-                              static_cast<uint32_t>(HWC2::DisplayRequest::FlipClientTarget)) != 0;
+                              static_cast<uint32_t>(hal::DisplayRequest::FLIP_CLIENT_TARGET)) != 0;
     // Note: HWC2::DisplayRequest::WriteClientTargetToOutput is currently ignored.
 }
 
diff --git a/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp b/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
index 3aa7956..c9a070d 100644
--- a/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
@@ -344,11 +344,11 @@
 }
 
 void OutputLayer::writeOutputDependentGeometryStateToHWC(
-        HWC2::Layer* hwcLayer, Hwc2::IComposerClient::Composition requestedCompositionType) {
+        HWC2::Layer* hwcLayer, hal::Composition requestedCompositionType) {
     const auto& outputDependentState = getState();
 
     if (auto error = hwcLayer->setDisplayFrame(outputDependentState.displayFrame);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set display frame [%d, %d, %d, %d]: %s (%d)",
               getLayerFE().getDebugName(), outputDependentState.displayFrame.left,
               outputDependentState.displayFrame.top, outputDependentState.displayFrame.right,
@@ -357,7 +357,7 @@
     }
 
     if (auto error = hwcLayer->setSourceCrop(outputDependentState.sourceCrop);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set source crop [%.3f, %.3f, %.3f, %.3f]: "
               "%s (%d)",
               getLayerFE().getDebugName(), outputDependentState.sourceCrop.left,
@@ -366,18 +366,17 @@
               static_cast<int32_t>(error));
     }
 
-    if (auto error = hwcLayer->setZOrder(outputDependentState.z); error != HWC2::Error::None) {
+    if (auto error = hwcLayer->setZOrder(outputDependentState.z); error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set Z %u: %s (%d)", getLayerFE().getDebugName(),
               outputDependentState.z, to_string(error).c_str(), static_cast<int32_t>(error));
     }
 
     // Solid-color layers should always use an identity transform.
-    const auto bufferTransform =
-            requestedCompositionType != Hwc2::IComposerClient::Composition::SOLID_COLOR
+    const auto bufferTransform = requestedCompositionType != hal::Composition::SOLID_COLOR
             ? outputDependentState.bufferTransform
-            : static_cast<Hwc2::Transform>(0);
-    if (auto error = hwcLayer->setTransform(static_cast<HWC2::Transform>(bufferTransform));
-        error != HWC2::Error::None) {
+            : static_cast<hal::Transform>(0);
+    if (auto error = hwcLayer->setTransform(static_cast<hal::Transform>(bufferTransform));
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set transform %s: %s (%d)", getLayerFE().getDebugName(),
               toString(outputDependentState.bufferTransform).c_str(), to_string(error).c_str(),
               static_cast<int32_t>(error));
@@ -386,30 +385,29 @@
 
 void OutputLayer::writeOutputIndependentGeometryStateToHWC(
         HWC2::Layer* hwcLayer, const LayerFECompositionState& outputIndependentState) {
-    if (auto error = hwcLayer->setBlendMode(
-                static_cast<HWC2::BlendMode>(outputIndependentState.blendMode));
-        error != HWC2::Error::None) {
+    if (auto error = hwcLayer->setBlendMode(outputIndependentState.blendMode);
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set blend mode %s: %s (%d)", getLayerFE().getDebugName(),
               toString(outputIndependentState.blendMode).c_str(), to_string(error).c_str(),
               static_cast<int32_t>(error));
     }
 
     if (auto error = hwcLayer->setPlaneAlpha(outputIndependentState.alpha);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set plane alpha %.3f: %s (%d)", getLayerFE().getDebugName(),
               outputIndependentState.alpha, to_string(error).c_str(), static_cast<int32_t>(error));
     }
 
     if (auto error = hwcLayer->setInfo(static_cast<uint32_t>(outputIndependentState.type),
                                        static_cast<uint32_t>(outputIndependentState.appId));
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set info %s (%d)", getLayerFE().getDebugName(),
               to_string(error).c_str(), static_cast<int32_t>(error));
     }
 
     for (const auto& [name, entry] : outputIndependentState.metadata) {
         if (auto error = hwcLayer->setLayerGenericMetadata(name, entry.mandatory, entry.value);
-            error != HWC2::Error::None) {
+            error != hal::Error::NONE) {
             ALOGE("[%s] Failed to set generic metadata %s %s (%d)", getLayerFE().getDebugName(),
                   name.c_str(), to_string(error).c_str(), static_cast<int32_t>(error));
         }
@@ -422,14 +420,14 @@
     // TODO(lpique): b/121291683 outputSpaceVisibleRegion is output-dependent geometry
     // state and should not change every frame.
     if (auto error = hwcLayer->setVisibleRegion(outputDependentState.outputSpaceVisibleRegion);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set visible region: %s (%d)", getLayerFE().getDebugName(),
               to_string(error).c_str(), static_cast<int32_t>(error));
         outputDependentState.outputSpaceVisibleRegion.dump(LOG_TAG);
     }
 
     if (auto error = hwcLayer->setDataspace(outputDependentState.dataspace);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set dataspace %d: %s (%d)", getLayerFE().getDebugName(),
               outputDependentState.dataspace, to_string(error).c_str(),
               static_cast<int32_t>(error));
@@ -439,9 +437,9 @@
 void OutputLayer::writeOutputIndependentPerFrameStateToHWC(
         HWC2::Layer* hwcLayer, const LayerFECompositionState& outputIndependentState) {
     switch (auto error = hwcLayer->setColorTransform(outputIndependentState.colorTransform)) {
-        case HWC2::Error::None:
+        case hal::Error::NONE:
             break;
-        case HWC2::Error::Unsupported:
+        case hal::Error::UNSUPPORTED:
             editState().forceClientComposition = true;
             break;
         default:
@@ -450,7 +448,7 @@
     }
 
     if (auto error = hwcLayer->setSurfaceDamage(outputIndependentState.surfaceDamage);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set surface damage: %s (%d)", getLayerFE().getDebugName(),
               to_string(error).c_str(), static_cast<int32_t>(error));
         outputIndependentState.surfaceDamage.dump(LOG_TAG);
@@ -458,18 +456,18 @@
 
     // Content-specific per-frame state
     switch (outputIndependentState.compositionType) {
-        case Hwc2::IComposerClient::Composition::SOLID_COLOR:
+        case hal::Composition::SOLID_COLOR:
             // For compatibility, should be written AFTER the composition type.
             break;
-        case Hwc2::IComposerClient::Composition::SIDEBAND:
+        case hal::Composition::SIDEBAND:
             writeSidebandStateToHWC(hwcLayer, outputIndependentState);
             break;
-        case Hwc2::IComposerClient::Composition::CURSOR:
-        case Hwc2::IComposerClient::Composition::DEVICE:
+        case hal::Composition::CURSOR:
+        case hal::Composition::DEVICE:
             writeBufferStateToHWC(hwcLayer, outputIndependentState);
             break;
-        case Hwc2::IComposerClient::Composition::INVALID:
-        case Hwc2::IComposerClient::Composition::CLIENT:
+        case hal::Composition::INVALID:
+        case hal::Composition::CLIENT:
             // Ignored
             break;
     }
@@ -477,16 +475,16 @@
 
 void OutputLayer::writeSolidColorStateToHWC(HWC2::Layer* hwcLayer,
                                             const LayerFECompositionState& outputIndependentState) {
-    if (outputIndependentState.compositionType != Hwc2::IComposerClient::Composition::SOLID_COLOR) {
+    if (outputIndependentState.compositionType != hal::Composition::SOLID_COLOR) {
         return;
     }
 
-    hwc_color_t color = {static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.r)),
-                         static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.g)),
-                         static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.b)),
-                         255};
+    hal::Color color = {static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.r)),
+                        static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.g)),
+                        static_cast<uint8_t>(std::round(255.0f * outputIndependentState.color.b)),
+                        255};
 
-    if (auto error = hwcLayer->setColor(color); error != HWC2::Error::None) {
+    if (auto error = hwcLayer->setColor(color); error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set color: %s (%d)", getLayerFE().getDebugName(),
               to_string(error).c_str(), static_cast<int32_t>(error));
     }
@@ -495,7 +493,7 @@
 void OutputLayer::writeSidebandStateToHWC(HWC2::Layer* hwcLayer,
                                           const LayerFECompositionState& outputIndependentState) {
     if (auto error = hwcLayer->setSidebandStream(outputIndependentState.sidebandStream->handle());
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set sideband stream %p: %s (%d)", getLayerFE().getDebugName(),
               outputIndependentState.sidebandStream->handle(), to_string(error).c_str(),
               static_cast<int32_t>(error));
@@ -508,7 +506,7 @@
             getOutput().getDisplayColorProfile()->getSupportedPerFrameMetadata();
     if (auto error = hwcLayer->setPerFrameMetadata(supportedPerFrameMetadata,
                                                    outputIndependentState.hdrMetadata);
-        error != HWC2::Error::None && error != HWC2::Error::Unsupported) {
+        error != hal::Error::NONE && error != hal::Error::UNSUPPORTED) {
         ALOGE("[%s] Failed to set hdrMetadata: %s (%d)", getLayerFE().getDebugName(),
               to_string(error).c_str(), static_cast<int32_t>(error));
     }
@@ -522,29 +520,28 @@
                                                  &hwcBuffer);
 
     if (auto error = hwcLayer->setBuffer(hwcSlot, hwcBuffer, outputIndependentState.acquireFence);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set buffer %p: %s (%d)", getLayerFE().getDebugName(),
               outputIndependentState.buffer->handle, to_string(error).c_str(),
               static_cast<int32_t>(error));
     }
 }
 
-void OutputLayer::writeCompositionTypeToHWC(
-        HWC2::Layer* hwcLayer, Hwc2::IComposerClient::Composition requestedCompositionType) {
+void OutputLayer::writeCompositionTypeToHWC(HWC2::Layer* hwcLayer,
+                                            hal::Composition requestedCompositionType) {
     auto& outputDependentState = editState();
 
     // If we are forcing client composition, we need to tell the HWC
     if (outputDependentState.forceClientComposition) {
-        requestedCompositionType = Hwc2::IComposerClient::Composition::CLIENT;
+        requestedCompositionType = hal::Composition::CLIENT;
     }
 
     // Set the requested composition type with the HWC whenever it changes
     if (outputDependentState.hwc->hwcCompositionType != requestedCompositionType) {
         outputDependentState.hwc->hwcCompositionType = requestedCompositionType;
 
-        if (auto error = hwcLayer->setCompositionType(
-                    static_cast<HWC2::Composition>(requestedCompositionType));
-            error != HWC2::Error::None) {
+        if (auto error = hwcLayer->setCompositionType(requestedCompositionType);
+            error != hal::Error::NONE) {
             ALOGE("[%s] Failed to set composition type %s: %s (%d)", getLayerFE().getDebugName(),
                   toString(requestedCompositionType).c_str(), to_string(error).c_str(),
                   static_cast<int32_t>(error));
@@ -571,7 +568,7 @@
     Rect position = outputState.transform.transform(frame);
 
     if (auto error = hwcLayer->setCursorPosition(position.left, position.top);
-        error != HWC2::Error::None) {
+        error != hal::Error::NONE) {
         ALOGE("[%s] Failed to set cursor position to (%d, %d): %s (%d)",
               getLayerFE().getDebugName(), position.left, position.top, to_string(error).c_str(),
               static_cast<int32_t>(error));
@@ -585,33 +582,31 @@
 
 bool OutputLayer::requiresClientComposition() const {
     const auto& state = getState();
-    return !state.hwc ||
-            state.hwc->hwcCompositionType == Hwc2::IComposerClient::Composition::CLIENT;
+    return !state.hwc || state.hwc->hwcCompositionType == hal::Composition::CLIENT;
 }
 
 bool OutputLayer::isHardwareCursor() const {
     const auto& state = getState();
-    return state.hwc && state.hwc->hwcCompositionType == Hwc2::IComposerClient::Composition::CURSOR;
+    return state.hwc && state.hwc->hwcCompositionType == hal::Composition::CURSOR;
 }
 
-void OutputLayer::detectDisallowedCompositionTypeChange(
-        Hwc2::IComposerClient::Composition from, Hwc2::IComposerClient::Composition to) const {
+void OutputLayer::detectDisallowedCompositionTypeChange(hal::Composition from,
+                                                        hal::Composition to) const {
     bool result = false;
     switch (from) {
-        case Hwc2::IComposerClient::Composition::INVALID:
-        case Hwc2::IComposerClient::Composition::CLIENT:
+        case hal::Composition::INVALID:
+        case hal::Composition::CLIENT:
             result = false;
             break;
 
-        case Hwc2::IComposerClient::Composition::DEVICE:
-        case Hwc2::IComposerClient::Composition::SOLID_COLOR:
-            result = (to == Hwc2::IComposerClient::Composition::CLIENT);
+        case hal::Composition::DEVICE:
+        case hal::Composition::SOLID_COLOR:
+            result = (to == hal::Composition::CLIENT);
             break;
 
-        case Hwc2::IComposerClient::Composition::CURSOR:
-        case Hwc2::IComposerClient::Composition::SIDEBAND:
-            result = (to == Hwc2::IComposerClient::Composition::CLIENT ||
-                      to == Hwc2::IComposerClient::Composition::DEVICE);
+        case hal::Composition::CURSOR:
+        case hal::Composition::SIDEBAND:
+            result = (to == hal::Composition::CLIENT || to == hal::Composition::DEVICE);
             break;
     }
 
@@ -622,8 +617,7 @@
     }
 }
 
-void OutputLayer::applyDeviceCompositionTypeChange(
-        Hwc2::IComposerClient::Composition compositionType) {
+void OutputLayer::applyDeviceCompositionTypeChange(hal::Composition compositionType) {
     auto& state = editState();
     LOG_FATAL_IF(!state.hwc);
     auto& hwcState = *state.hwc;
@@ -638,10 +632,10 @@
     state.clearClientTarget = false;
 }
 
-void OutputLayer::applyDeviceLayerRequest(Hwc2::IComposerClient::LayerRequest request) {
+void OutputLayer::applyDeviceLayerRequest(hal::LayerRequest request) {
     auto& state = editState();
     switch (request) {
-        case Hwc2::IComposerClient::LayerRequest::CLEAR_CLIENT_TARGET:
+        case hal::LayerRequest::CLEAR_CLIENT_TARGET:
             state.clearClientTarget = true;
             break;
 
diff --git a/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp b/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp
index f73a6f7..59889b6 100644
--- a/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp
@@ -40,6 +40,8 @@
 namespace android::compositionengine {
 namespace {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 using testing::_;
 using testing::DoAll;
 using testing::Eq;
@@ -645,9 +647,9 @@
 
 TEST_F(DisplayChooseCompositionStrategyTest, normalOperationWithChanges) {
     android::HWComposer::DeviceRequestedChanges changes{
-            {{nullptr, HWC2::Composition::Client}},
-            HWC2::DisplayRequest::FlipClientTarget,
-            {{nullptr, HWC2::LayerRequest::ClearClientTarget}},
+            {{nullptr, hal::Composition::CLIENT}},
+            hal::DisplayRequest::FLIP_CLIENT_TARGET,
+            {{nullptr, hal::LayerRequest::CLEAR_CLIENT_TARGET}},
     };
 
     // Since two calls are made to anyLayersRequireClientComposition with different return
@@ -682,7 +684,7 @@
 using DisplayGetSkipColorTransformTest = DisplayWithLayersTestCommon;
 
 TEST_F(DisplayGetSkipColorTransformTest, checksCapabilityIfNonHwcDisplay) {
-    EXPECT_CALL(mHwComposer, hasCapability(HWC2::Capability::SkipClientColorTransform))
+    EXPECT_CALL(mHwComposer, hasCapability(hal::Capability::SKIP_CLIENT_COLOR_TRANSFORM))
             .WillOnce(Return(true));
     auto args = getDisplayCreationArgsForNonHWCVirtualDisplay();
     auto nonHwcDisplay{impl::createDisplay(mCompositionEngine, args)};
@@ -692,7 +694,7 @@
 TEST_F(DisplayGetSkipColorTransformTest, checksDisplayCapability) {
     EXPECT_CALL(mHwComposer,
                 hasDisplayCapability(DEFAULT_DISPLAY_ID,
-                                     HWC2::DisplayCapability::SkipClientColorTransform))
+                                     hal::DisplayCapability::SKIP_CLIENT_COLOR_TRANSFORM))
             .WillOnce(Return(true));
     EXPECT_TRUE(mDisplay->getSkipColorTransform());
 }
@@ -758,9 +760,9 @@
             .Times(1);
 
     mDisplay->applyChangedTypesToLayers(impl::Display::ChangedTypes{
-            {&mLayer1.hwc2Layer, HWC2::Composition::Client},
-            {&mLayer2.hwc2Layer, HWC2::Composition::Device},
-            {&hwc2LayerUnknown, HWC2::Composition::SolidColor},
+            {&mLayer1.hwc2Layer, hal::Composition::CLIENT},
+            {&mLayer2.hwc2Layer, hal::Composition::DEVICE},
+            {&hwc2LayerUnknown, hal::Composition::SOLID_COLOR},
     });
 }
 
@@ -771,28 +773,28 @@
 using DisplayApplyDisplayRequestsTest = DisplayWithLayersTestCommon;
 
 TEST_F(DisplayApplyDisplayRequestsTest, handlesNoRequests) {
-    mDisplay->applyDisplayRequests(static_cast<HWC2::DisplayRequest>(0));
+    mDisplay->applyDisplayRequests(static_cast<hal::DisplayRequest>(0));
 
     auto& state = mDisplay->getState();
     EXPECT_FALSE(state.flipClientTarget);
 }
 
 TEST_F(DisplayApplyDisplayRequestsTest, handlesFlipClientTarget) {
-    mDisplay->applyDisplayRequests(HWC2::DisplayRequest::FlipClientTarget);
+    mDisplay->applyDisplayRequests(hal::DisplayRequest::FLIP_CLIENT_TARGET);
 
     auto& state = mDisplay->getState();
     EXPECT_TRUE(state.flipClientTarget);
 }
 
 TEST_F(DisplayApplyDisplayRequestsTest, handlesWriteClientTargetToOutput) {
-    mDisplay->applyDisplayRequests(HWC2::DisplayRequest::WriteClientTargetToOutput);
+    mDisplay->applyDisplayRequests(hal::DisplayRequest::WRITE_CLIENT_TARGET_TO_OUTPUT);
 
     auto& state = mDisplay->getState();
     EXPECT_FALSE(state.flipClientTarget);
 }
 
 TEST_F(DisplayApplyDisplayRequestsTest, handlesAllRequestFlagsSet) {
-    mDisplay->applyDisplayRequests(static_cast<HWC2::DisplayRequest>(~0));
+    mDisplay->applyDisplayRequests(static_cast<hal::DisplayRequest>(~0));
 
     auto& state = mDisplay->getState();
     EXPECT_TRUE(state.flipClientTarget);
@@ -822,8 +824,8 @@
             .Times(1);
 
     mDisplay->applyLayerRequestsToLayers(impl::Display::LayerRequests{
-            {&mLayer1.hwc2Layer, HWC2::LayerRequest::ClearClientTarget},
-            {&hwc2LayerUnknown, HWC2::LayerRequest::ClearClientTarget},
+            {&mLayer1.hwc2Layer, hal::LayerRequest::CLEAR_CLIENT_TARGET},
+            {&hwc2LayerUnknown, hal::LayerRequest::CLEAR_CLIENT_TARGET},
     });
 }
 
diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.cpp b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.cpp
index 8c10341..0baa79d 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.cpp
@@ -16,7 +16,7 @@
 
 #include "MockHWC2.h"
 
-namespace HWC2 {
+namespace android::HWC2 {
 
 // This will go away once HWC2::Layer is moved into the "backend" library
 Layer::~Layer() = default;
@@ -29,4 +29,4 @@
 Layer::~Layer() = default;
 
 } // namespace mock
-} // namespace HWC2
+} // namespace android::HWC2
diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
index be89c1a..d21b97e 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWC2.h
@@ -20,7 +20,6 @@
 #include <ui/Fence.h>
 #include <ui/FloatRect.h>
 #include <ui/GraphicBuffer.h>
-
 #include <ui/Rect.h>
 #include <ui/Region.h>
 #include <ui/Transform.h>
@@ -35,31 +34,36 @@
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion"
 
+namespace android {
 namespace HWC2 {
 namespace mock {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
+using Error = hal::Error;
+
 class Layer : public HWC2::Layer {
 public:
     Layer();
     ~Layer() override;
 
-    MOCK_CONST_METHOD0(getId, hwc2_layer_t());
+    MOCK_CONST_METHOD0(getId, hal::HWLayerId());
 
     MOCK_METHOD2(setCursorPosition, Error(int32_t, int32_t));
     MOCK_METHOD3(setBuffer,
                  Error(uint32_t, const android::sp<android::GraphicBuffer>&,
                        const android::sp<android::Fence>&));
     MOCK_METHOD1(setSurfaceDamage, Error(const android::Region&));
-    MOCK_METHOD1(setBlendMode, Error(BlendMode));
-    MOCK_METHOD1(setColor, Error(hwc_color_t));
-    MOCK_METHOD1(setCompositionType, Error(Composition));
+    MOCK_METHOD1(setBlendMode, Error(hal::BlendMode));
+    MOCK_METHOD1(setColor, Error(hal::Color));
+    MOCK_METHOD1(setCompositionType, Error(hal::Composition));
     MOCK_METHOD1(setDataspace, Error(android::ui::Dataspace));
     MOCK_METHOD2(setPerFrameMetadata, Error(const int32_t, const android::HdrMetadata&));
     MOCK_METHOD1(setDisplayFrame, Error(const android::Rect&));
     MOCK_METHOD1(setPlaneAlpha, Error(float));
     MOCK_METHOD1(setSidebandStream, Error(const native_handle_t*));
     MOCK_METHOD1(setSourceCrop, Error(const android::FloatRect&));
-    MOCK_METHOD1(setTransform, Error(Transform));
+    MOCK_METHOD1(setTransform, Error(hal::Transform));
     MOCK_METHOD1(setVisibleRegion, Error(const android::Region&));
     MOCK_METHOD1(setZOrder, Error(uint32_t));
     MOCK_METHOD2(setInfo, Error(uint32_t, uint32_t));
@@ -71,3 +75,4 @@
 
 } // namespace mock
 } // namespace HWC2
+} // namespace android
diff --git a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
index 52bd6a1..27266b7 100644
--- a/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
+++ b/services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h
@@ -31,6 +31,8 @@
 namespace android {
 namespace mock {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 class HWComposer : public android::HWComposer {
 public:
     HWComposer();
@@ -38,13 +40,13 @@
 
     MOCK_METHOD2(setConfiguration, void(HWC2::ComposerCallback*, int32_t));
     MOCK_CONST_METHOD3(getDisplayIdentificationData,
-                       bool(hwc2_display_t, uint8_t*, DisplayIdentificationData*));
-    MOCK_CONST_METHOD1(hasCapability, bool(HWC2::Capability));
-    MOCK_CONST_METHOD2(hasDisplayCapability, bool(DisplayId, HWC2::DisplayCapability));
+                       bool(hal::HWDisplayId, uint8_t*, DisplayIdentificationData*));
+    MOCK_CONST_METHOD1(hasCapability, bool(hal::Capability));
+    MOCK_CONST_METHOD2(hasDisplayCapability, bool(DisplayId, hal::DisplayCapability));
 
     MOCK_METHOD3(allocateVirtualDisplay,
                  std::optional<DisplayId>(uint32_t, uint32_t, ui::PixelFormat*));
-    MOCK_METHOD2(allocatePhysicalDisplay, void(hwc2_display_t, DisplayId));
+    MOCK_METHOD2(allocatePhysicalDisplay, void(hal::HWDisplayId, DisplayId));
     MOCK_METHOD1(createLayer, HWC2::Layer*(DisplayId));
     MOCK_METHOD2(destroyLayer, void(DisplayId, HWC2::Layer*));
     MOCK_METHOD3(getDeviceCompositionChanges,
@@ -54,7 +56,7 @@
                  status_t(DisplayId, uint32_t, const sp<Fence>&, const sp<GraphicBuffer>&,
                           ui::Dataspace));
     MOCK_METHOD1(presentAndGetReleaseFences, status_t(DisplayId));
-    MOCK_METHOD2(setPowerMode, status_t(DisplayId, int));
+    MOCK_METHOD2(setPowerMode, status_t(DisplayId, hal::PowerMode));
     MOCK_METHOD2(setActiveConfig, status_t(DisplayId, size_t));
     MOCK_METHOD2(setColorTransform, status_t(DisplayId, const mat4&));
     MOCK_METHOD1(disconnectDisplay, void(DisplayId));
@@ -76,9 +78,9 @@
     MOCK_METHOD2(getDisplayBrightnessSupport, status_t(DisplayId, bool*));
 
     MOCK_METHOD2(onHotplug,
-                 std::optional<DisplayIdentificationInfo>(hwc2_display_t, HWC2::Connection));
-    MOCK_METHOD2(onVsync, bool(hwc2_display_t, int64_t));
-    MOCK_METHOD2(setVsyncEnabled, void(DisplayId, HWC2::Vsync));
+                 std::optional<DisplayIdentificationInfo>(hal::HWDisplayId, hal::Connection));
+    MOCK_METHOD2(onVsync, bool(hal::HWDisplayId, int64_t));
+    MOCK_METHOD2(setVsyncEnabled, void(DisplayId, hal::Vsync));
     MOCK_CONST_METHOD1(getRefreshTimestamp, nsecs_t(DisplayId));
     MOCK_CONST_METHOD1(isConnected, bool(DisplayId));
     MOCK_CONST_METHOD1(getConfigs,
@@ -92,21 +94,21 @@
     MOCK_CONST_METHOD1(isVsyncPeriodSwitchSupported, bool(DisplayId));
     MOCK_CONST_METHOD1(getDisplayVsyncPeriod, nsecs_t(DisplayId));
     MOCK_METHOD4(setActiveConfigWithConstraints,
-                 status_t(DisplayId, size_t, const HWC2::VsyncPeriodChangeConstraints&,
-                          HWC2::VsyncPeriodChangeTimeline*));
+                 status_t(DisplayId, size_t, const hal::VsyncPeriodChangeConstraints&,
+                          hal::VsyncPeriodChangeTimeline*));
     MOCK_METHOD2(setAutoLowLatencyMode, status_t(DisplayId, bool));
-    MOCK_METHOD2(getSupportedContentTypes, status_t(DisplayId, std::vector<HWC2::ContentType>*));
-    MOCK_METHOD2(setContentType, status_t(DisplayId, HWC2::ContentType));
+    MOCK_METHOD2(getSupportedContentTypes, status_t(DisplayId, std::vector<hal::ContentType>*));
+    MOCK_METHOD2(setContentType, status_t(DisplayId, hal::ContentType));
     MOCK_CONST_METHOD0(getSupportedLayerGenericMetadata,
                        const std::unordered_map<std::string, bool>&());
 
     MOCK_CONST_METHOD1(dump, void(std::string&));
     MOCK_CONST_METHOD0(getComposer, android::Hwc2::Composer*());
-    MOCK_CONST_METHOD1(getHwcDisplayId, std::optional<hwc2_display_t>(int32_t));
-    MOCK_CONST_METHOD0(getInternalHwcDisplayId, std::optional<hwc2_display_t>());
-    MOCK_CONST_METHOD0(getExternalHwcDisplayId, std::optional<hwc2_display_t>());
-    MOCK_CONST_METHOD1(toPhysicalDisplayId, std::optional<DisplayId>(hwc2_display_t));
-    MOCK_CONST_METHOD1(fromPhysicalDisplayId, std::optional<hwc2_display_t>(DisplayId));
+    MOCK_CONST_METHOD1(getHwcDisplayId, std::optional<hal::HWDisplayId>(int32_t));
+    MOCK_CONST_METHOD0(getInternalHwcDisplayId, std::optional<hal::HWDisplayId>());
+    MOCK_CONST_METHOD0(getExternalHwcDisplayId, std::optional<hal::HWDisplayId>());
+    MOCK_CONST_METHOD1(toPhysicalDisplayId, std::optional<DisplayId>(hal::HWDisplayId));
+    MOCK_CONST_METHOD1(fromPhysicalDisplayId, std::optional<hal::HWDisplayId>(DisplayId));
 };
 
 } // namespace mock
diff --git a/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp b/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
index 1b5617c..bdacb22 100644
--- a/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
@@ -29,6 +29,8 @@
 namespace android::compositionengine {
 namespace {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 using testing::_;
 using testing::InSequence;
 using testing::Return;
@@ -613,7 +615,7 @@
  */
 
 struct OutputLayerWriteStateToHWCTest : public OutputLayerTest {
-    static constexpr HWC2::Error kError = HWC2::Error::Unsupported;
+    static constexpr hal::Error kError = hal::Error::UNSUPPORTED;
     static constexpr FloatRect kSourceCrop{11.f, 12.f, 13.f, 14.f};
     static constexpr uint32_t kZOrder = 21u;
     static constexpr Hwc2::Transform kBufferTransform = static_cast<Hwc2::Transform>(31);
@@ -686,11 +688,9 @@
         EXPECT_CALL(*mHwcLayer, setDisplayFrame(kDisplayFrame)).WillOnce(Return(kError));
         EXPECT_CALL(*mHwcLayer, setSourceCrop(kSourceCrop)).WillOnce(Return(kError));
         EXPECT_CALL(*mHwcLayer, setZOrder(kZOrder)).WillOnce(Return(kError));
-        EXPECT_CALL(*mHwcLayer, setTransform(static_cast<HWC2::Transform>(kBufferTransform)))
-                .WillOnce(Return(kError));
+        EXPECT_CALL(*mHwcLayer, setTransform(kBufferTransform)).WillOnce(Return(kError));
 
-        EXPECT_CALL(*mHwcLayer, setBlendMode(static_cast<HWC2::BlendMode>(kBlendMode)))
-                .WillOnce(Return(kError));
+        EXPECT_CALL(*mHwcLayer, setBlendMode(kBlendMode)).WillOnce(Return(kError));
         EXPECT_CALL(*mHwcLayer, setPlaneAlpha(kAlpha)).WillOnce(Return(kError));
         EXPECT_CALL(*mHwcLayer, setInfo(kType, kAppId)).WillOnce(Return(kError));
     }
@@ -701,15 +701,14 @@
         EXPECT_CALL(*mHwcLayer, setDataspace(kDataspace)).WillOnce(Return(kError));
         EXPECT_CALL(*mHwcLayer, setColorTransform(kColorTransform))
                 .WillOnce(Return(unsupported == SimulateUnsupported::ColorTransform
-                                         ? HWC2::Error::Unsupported
-                                         : HWC2::Error::None));
+                                         ? hal::Error::UNSUPPORTED
+                                         : hal::Error::NONE));
         EXPECT_CALL(*mHwcLayer, setSurfaceDamage(RegionEq(kSurfaceDamage)))
                 .WillOnce(Return(kError));
     }
 
     void expectSetCompositionTypeCall(Hwc2::IComposerClient::Composition compositionType) {
-        EXPECT_CALL(*mHwcLayer, setCompositionType(static_cast<HWC2::Composition>(compositionType)))
-                .WillOnce(Return(kError));
+        EXPECT_CALL(*mHwcLayer, setCompositionType(compositionType)).WillOnce(Return(kError));
     }
 
     void expectNoSetCompositionTypeCall() {
@@ -717,9 +716,9 @@
     }
 
     void expectSetColorCall() {
-        hwc_color_t color = {static_cast<uint8_t>(std::round(kColor.r * 255)),
-                             static_cast<uint8_t>(std::round(kColor.g * 255)),
-                             static_cast<uint8_t>(std::round(kColor.b * 255)), 255};
+        const hal::Color color = {static_cast<uint8_t>(std::round(kColor.r * 255)),
+                                  static_cast<uint8_t>(std::round(kColor.g * 255)),
+                                  static_cast<uint8_t>(std::round(kColor.b * 255)), 255};
 
         EXPECT_CALL(*mHwcLayer, setColor(ColorEq(color))).WillOnce(Return(kError));
     }
@@ -924,7 +923,7 @@
 
 struct OutputLayerWriteCursorPositionToHWCTest : public OutputLayerTest {
     static constexpr int kDefaultTransform = TR_IDENT;
-    static constexpr HWC2::Error kDefaultError = HWC2::Error::Unsupported;
+    static constexpr hal::Error kDefaultError = hal::Error::UNSUPPORTED;
 
     static const Rect kDefaultDisplayViewport;
     static const Rect kDefaultCursorFrame;
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index b81eb18..9af9cad 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -43,6 +43,8 @@
 
 namespace android {
 
+namespace hal = hardware::graphics::composer::hal;
+
 using android::base::StringAppendF;
 
 ui::Transform::RotationFlags DisplayDevice::sPrimaryDisplayRotationFlags = ui::Transform::ROT_0;
@@ -119,17 +121,17 @@
 }
 
 // ----------------------------------------------------------------------------
-void DisplayDevice::setPowerMode(int mode) {
+void DisplayDevice::setPowerMode(hal::PowerMode mode) {
     mPowerMode = mode;
-    getCompositionDisplay()->setCompositionEnabled(mPowerMode != HWC_POWER_MODE_OFF);
+    getCompositionDisplay()->setCompositionEnabled(mPowerMode != hal::PowerMode::OFF);
 }
 
-int DisplayDevice::getPowerMode()  const {
+hal::PowerMode DisplayDevice::getPowerMode() const {
     return mPowerMode;
 }
 
 bool DisplayDevice::isPoweredOn() const {
-    return mPowerMode != HWC_POWER_MODE_OFF;
+    return mPowerMode != hal::PowerMode::OFF;
 }
 
 void DisplayDevice::setActiveConfig(HwcConfigIndexType mode) {
@@ -262,7 +264,8 @@
     StringAppendF(&result, "+ %s\n", getDebugName().c_str());
 
     result.append("   ");
-    StringAppendF(&result, "powerMode=%d, ", mPowerMode);
+    StringAppendF(&result, "powerMode=%s (%d), ", to_string(mPowerMode).c_str(),
+                  static_cast<int32_t>(mPowerMode));
     StringAppendF(&result, "activeConfig=%d, ", mActiveConfig.value());
     getCompositionDisplay()->dump(result);
 }
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index e670d78..8c86153 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -24,7 +24,6 @@
 #include <android/native_window.h>
 #include <binder/IBinder.h>
 #include <gui/LayerState.h>
-#include <hardware/hwcomposer_defs.h>
 #include <math/mat4.h>
 #include <renderengine/RenderEngine.h>
 #include <system/window.h>
@@ -39,6 +38,7 @@
 #include <utils/Timers.h>
 
 #include "DisplayHardware/DisplayIdentification.h"
+#include "DisplayHardware/Hal.h"
 #include "DisplayHardware/PowerAdvisor.h"
 #include "RenderArea.h"
 #include "Scheduler/HwcStrongTypes.h"
@@ -135,8 +135,8 @@
     /* ------------------------------------------------------------------------
      * Display power mode management.
      */
-    int getPowerMode() const;
-    void setPowerMode(int mode);
+    hardware::graphics::composer::hal::PowerMode getPowerMode() const;
+    void setPowerMode(hardware::graphics::composer::hal::PowerMode mode);
     bool isPoweredOn() const;
 
     ui::Dataspace getCompositionDataSpace() const;
@@ -172,7 +172,8 @@
 
     static ui::Transform::RotationFlags sPrimaryDisplayRotationFlags;
 
-    int mPowerMode = HWC_POWER_MODE_OFF;
+    hardware::graphics::composer::hal::PowerMode mPowerMode =
+            hardware::graphics::composer::hal::PowerMode::OFF;
     HwcConfigIndexType mActiveConfig;
 
     // TODO(b/74619554): Remove special cases for primary display.
@@ -183,7 +184,7 @@
     struct Physical {
         DisplayId id;
         DisplayConnectionType type;
-        hwc2_display_t hwcDisplayId;
+        hardware::graphics::composer::hal::HWDisplayId hwcDisplayId;
 
         bool operator==(const Physical& other) const {
             return id == other.id && type == other.type && hwcDisplayId == other.hwcDisplayId;
@@ -227,7 +228,8 @@
     HdrCapabilities hdrCapabilities;
     int32_t supportedPerFrameMetadata{0};
     std::unordered_map<ui::ColorMode, std::vector<ui::RenderIntent>> hwcColorModes;
-    int initialPowerMode{HWC_POWER_MODE_NORMAL};
+    hardware::graphics::composer::hal::PowerMode initialPowerMode{
+            hardware::graphics::composer::hal::PowerMode::ON};
     bool isPrimary{false};
 };
 
diff --git a/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp b/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp
index b6d904f..4dfc743 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp
@@ -96,6 +96,12 @@
         info.manufactureOrModelDate = date;
     }
 
+    if (edid.cea861Block && edid.cea861Block->hdmiVendorDataBlock) {
+        const auto& address = edid.cea861Block->hdmiVendorDataBlock->physicalAddress;
+        info.relativeAddress = {address.a, address.b, address.c, address.d};
+    } else {
+        info.relativeAddress = DeviceProductInfo::NO_RELATIVE_ADDRESS;
+    }
     return info;
 }
 
diff --git a/services/surfaceflinger/DisplayHardware/DisplayIdentification.h b/services/surfaceflinger/DisplayHardware/DisplayIdentification.h
index fc2f72e..4819d1d 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayIdentification.h
+++ b/services/surfaceflinger/DisplayHardware/DisplayIdentification.h
@@ -26,6 +26,9 @@
 #include <ui/DeviceProductInfo.h>
 #include <ui/PhysicalDisplayId.h>
 
+#define LEGACY_DISPLAY_TYPE_PRIMARY 0
+#define LEGACY_DISPLAY_TYPE_EXTERNAL 1
+
 namespace android {
 
 struct DisplayId {
@@ -70,7 +73,7 @@
 };
 
 struct HdmiVendorDataBlock {
-    std::optional<HdmiPhysicalAddress> physicalAddress;
+    HdmiPhysicalAddress physicalAddress;
 };
 
 struct Cea861ExtensionBlock : ExtensionBlock {
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index fc5d441..d6dbd57 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -38,6 +38,8 @@
 #include <iterator>
 #include <set>
 
+namespace android {
+
 using android::Fence;
 using android::FloatRect;
 using android::GraphicBuffer;
@@ -49,11 +51,9 @@
 
 namespace HWC2 {
 
+using namespace android::hardware::graphics::composer::hal;
+
 namespace Hwc2 = android::Hwc2;
-using android::ui::ColorMode;
-using android::ui::Dataspace;
-using android::ui::PixelFormat;
-using android::ui::RenderIntent;
 
 namespace {
 
@@ -67,7 +67,7 @@
 // Display methods
 Display::~Display() = default;
 
-Display::Config::Config(Display& display, hwc2_config_t id)
+Display::Config::Config(Display& display, HWConfigId id)
       : mDisplay(display),
         mId(id),
         mWidth(-1),
@@ -76,7 +76,7 @@
         mDpiX(-1),
         mDpiY(-1) {}
 
-Display::Config::Builder::Builder(Display& display, hwc2_config_t id)
+Display::Config::Builder::Builder(Display& display, HWConfigId id)
       : mConfig(new Config(display, id)) {}
 
 float Display::Config::Builder::getDefaultDensity() {
@@ -97,37 +97,34 @@
 namespace impl {
 
 Display::Display(android::Hwc2::Composer& composer,
-                 const std::unordered_set<Capability>& capabilities, hwc2_display_t id,
+                 const std::unordered_set<Capability>& capabilities, HWDisplayId id,
                  DisplayType type)
-      : mComposer(composer),
-        mCapabilities(capabilities),
-        mId(id),
-        mType(type) {
+      : mComposer(composer), mCapabilities(capabilities), mId(id), mType(type) {
     ALOGV("Created display %" PRIu64, id);
 }
 
 Display::~Display() {
     mLayers.clear();
 
-    Error error = Error::None;
+    Error error = Error::NONE;
     const char* msg;
     switch (mType) {
-        case DisplayType::Physical:
-            error = setVsyncEnabled(HWC2::Vsync::Disable);
+        case DisplayType::PHYSICAL:
+            error = setVsyncEnabled(HWC2::Vsync::DISABLE);
             msg = "disable VSYNC for";
             break;
 
-        case DisplayType::Virtual:
+        case DisplayType::VIRTUAL:
             error = static_cast<Error>(mComposer.destroyVirtualDisplay(mId));
             msg = "destroy virtual";
             break;
 
-        case DisplayType::Invalid: // Used in unit tests.
+        case DisplayType::INVALID: // Used in unit tests.
             break;
     }
 
-    ALOGE_IF(error != Error::None, "%s: Failed to %s display %" PRIu64 ": %s (%d)", __FUNCTION__,
-             msg, mId, to_string(error).c_str(), static_cast<int32_t>(error));
+    ALOGE_IF(error != Error::NONE, "%s: Failed to %s display %" PRIu64 ": %d", __FUNCTION__, msg,
+             mId, static_cast<int32_t>(error));
 
     ALOGV("Destroyed display %" PRIu64, mId);
 }
@@ -141,38 +138,38 @@
 
 Error Display::createLayer(HWC2::Layer** outLayer) {
     if (!outLayer) {
-        return Error::BadParameter;
+        return Error::BAD_PARAMETER;
     }
-    hwc2_layer_t layerId = 0;
+    HWLayerId layerId = 0;
     auto intError = mComposer.createLayer(mId, &layerId);
     auto error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
     auto layer = std::make_unique<impl::Layer>(mComposer, mCapabilities, mId, layerId);
     *outLayer = layer.get();
     mLayers.emplace(layerId, std::move(layer));
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::destroyLayer(HWC2::Layer* layer) {
     if (!layer) {
-        return Error::BadParameter;
+        return Error::BAD_PARAMETER;
     }
     mLayers.erase(layer->getId());
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::getActiveConfig(
         std::shared_ptr<const Display::Config>* outConfig) const
 {
     ALOGV("[%" PRIu64 "] getActiveConfig", mId);
-    hwc2_config_t configId = 0;
+    HWConfigId configId = 0;
     auto intError = mComposer.getActiveConfig(mId, &configId);
     auto error = static_cast<Error>(intError);
 
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         ALOGE("Unable to get active config for mId:[%" PRIu64 "]", mId);
         *outConfig = nullptr;
         return error;
@@ -188,7 +185,7 @@
         *outConfig = nullptr;
     }
 
-    return Error::None;
+    return Error::NONE;
 }
 
 bool Display::isVsyncPeriodSwitchSupported() const {
@@ -209,10 +206,10 @@
         *outVsyncPeriod = static_cast<nsecs_t>(vsyncPeriodNanos);
     } else {
         // Get the default vsync period
-        hwc2_config_t configId = 0;
+        HWConfigId configId = 0;
         auto intError_2_1 = mComposer.getActiveConfig(mId, &configId);
         error = static_cast<Error>(intError_2_1);
-        if (error == Error::None) {
+        if (error == Error::NONE) {
             auto config = mConfigs.at(configId);
             *outVsyncPeriod = config->getVsyncPeriod();
         }
@@ -223,11 +220,11 @@
 
 Error Display::getActiveConfigIndex(int* outIndex) const {
     ALOGV("[%" PRIu64 "] getActiveConfigIndex", mId);
-    hwc2_config_t configId = 0;
+    HWConfigId configId = 0;
     auto intError = mComposer.getActiveConfig(mId, &configId);
     auto error = static_cast<Error>(intError);
 
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         ALOGE("Unable to get active config for mId:[%" PRIu64 "]", mId);
         *outIndex = -1;
         return error;
@@ -244,7 +241,7 @@
         *outIndex = -1;
     }
 
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::getChangedCompositionTypes(std::unordered_map<HWC2::Layer*, Composition>* outTypes) {
@@ -255,7 +252,7 @@
     uint32_t numElements = layerIds.size();
     auto error = static_cast<Error>(intError);
     error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
@@ -264,7 +261,7 @@
     for (uint32_t element = 0; element < numElements; ++element) {
         auto layer = getLayerById(layerIds[element]);
         if (layer) {
-            auto type = static_cast<Composition>(types[element]);
+            auto type = types[element];
             ALOGV("getChangedCompositionTypes: adding %" PRIu64 " %s",
                     layer->getId(), to_string(type).c_str());
             outTypes->emplace(layer, type);
@@ -274,7 +271,7 @@
         }
     }
 
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::getColorModes(std::vector<ColorMode>* outModes) const
@@ -357,7 +354,7 @@
             mId, &intDisplayRequests, &layerIds, &layerRequests);
     uint32_t numElements = layerIds.size();
     auto error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
@@ -376,28 +373,28 @@
         }
     }
 
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::getConnectionType(android::DisplayConnectionType* outType) const {
-    if (mType != DisplayType::Physical) return Error::BadDisplay;
+    if (mType != DisplayType::PHYSICAL) return Error::BAD_DISPLAY;
 
     using ConnectionType = Hwc2::IComposerClient::DisplayConnectionType;
     ConnectionType connectionType;
     const auto error = static_cast<Error>(mComposer.getDisplayConnectionType(mId, &connectionType));
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
     *outType = connectionType == ConnectionType::INTERNAL
             ? android::DisplayConnectionType::Internal
             : android::DisplayConnectionType::External;
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::supportsDoze(bool* outSupport) const {
-    *outSupport = mDisplayCapabilities.count(DisplayCapability::Doze) > 0;
-    return Error::None;
+    *outSupport = mDisplayCapabilities.count(DisplayCapability::DOZE) > 0;
+    return Error::NONE;
 }
 
 Error Display::getHdrCapabilities(HdrCapabilities* outCapabilities) const
@@ -410,16 +407,16 @@
             &maxLuminance, &maxAverageLuminance, &minLuminance);
     auto error = static_cast<HWC2::Error>(intError);
 
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
     *outCapabilities = HdrCapabilities(std::move(types),
             maxLuminance, maxAverageLuminance, minLuminance);
-    return Error::None;
+    return Error::NONE;
 }
 
-Error Display::getDisplayedContentSamplingAttributes(PixelFormat* outFormat,
+Error Display::getDisplayedContentSamplingAttributes(hal::PixelFormat* outFormat,
                                                      Dataspace* outDataspace,
                                                      uint8_t* outComponentMask) const {
     auto intError = mComposer.getDisplayedContentSamplingAttributes(mId, outFormat, outDataspace,
@@ -446,7 +443,7 @@
     auto intError = mComposer.getReleaseFences(mId, &layerIds, &fenceFds);
     auto error = static_cast<Error>(intError);
     uint32_t numElements = layerIds.size();
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
@@ -463,12 +460,12 @@
             for (; element < numElements; ++element) {
                 close(fenceFds[element]);
             }
-            return Error::BadLayer;
+            return Error::BAD_LAYER;
         }
     }
 
     *outFences = std::move(releaseFences);
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::present(sp<Fence>* outPresentFence)
@@ -476,12 +473,12 @@
     int32_t presentFenceFd = -1;
     auto intError = mComposer.presentDisplay(mId, &presentFenceFd);
     auto error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
 
     *outPresentFence = new Fence(presentFenceFd);
-    return Error::None;
+    return Error::NONE;
 }
 
 Error Display::setActiveConfigWithConstraints(
@@ -492,7 +489,7 @@
         ALOGE("setActiveConfigWithConstraints received config %u for the wrong display %" PRIu64
               " (expected %" PRIu64 ")",
               config->getId(), config->getDisplayId(), mId);
-        return Error::BadConfig;
+        return Error::BAD_CONFIG;
     }
 
     if (isVsyncPeriodSwitchSupported()) {
@@ -530,7 +527,7 @@
         ALOGE("setActiveConfig received config %u for the wrong display %"
                 PRIu64 " (expected %" PRIu64 ")", config->getId(),
                 config->getDisplayId(), mId);
-        return Error::BadConfig;
+        return Error::BAD_CONFIG;
     }
     auto intError = mComposer.setActiveConfig(mId, config->getId());
     return static_cast<Error>(intError);
@@ -552,11 +549,8 @@
     return static_cast<Error>(intError);
 }
 
-Error Display::setColorTransform(const android::mat4& matrix,
-        android_color_transform_t hint)
-{
-    auto intError = mComposer.setColorTransform(mId,
-            matrix.asArray(), static_cast<Hwc2::ColorTransform>(hint));
+Error Display::setColorTransform(const android::mat4& matrix, ColorTransform hint) {
+    auto intError = mComposer.setColorTransform(mId, matrix.asArray(), hint);
     return static_cast<Error>(intError);
 }
 
@@ -575,23 +569,23 @@
     auto intMode = static_cast<Hwc2::IComposerClient::PowerMode>(mode);
     auto intError = mComposer.setPowerMode(mId, intMode);
 
-    if (mode == PowerMode::On) {
+    if (mode == PowerMode::ON) {
         std::call_once(mDisplayCapabilityQueryFlag, [this]() {
             std::vector<Hwc2::DisplayCapability> tmpCapabilities;
             auto error =
                     static_cast<Error>(mComposer.getDisplayCapabilities(mId, &tmpCapabilities));
-            if (error == Error::None) {
+            if (error == Error::NONE) {
                 for (auto capability : tmpCapabilities) {
                     mDisplayCapabilities.emplace(static_cast<DisplayCapability>(capability));
                 }
-            } else if (error == Error::Unsupported) {
-                if (mCapabilities.count(Capability::SkipClientColorTransform)) {
-                    mDisplayCapabilities.emplace(DisplayCapability::SkipClientColorTransform);
+            } else if (error == Error::UNSUPPORTED) {
+                if (mCapabilities.count(Capability::SKIP_CLIENT_COLOR_TRANSFORM)) {
+                    mDisplayCapabilities.emplace(DisplayCapability::SKIP_CLIENT_COLOR_TRANSFORM);
                 }
                 bool dozeSupport = false;
                 error = static_cast<Error>(mComposer.getDozeSupport(mId, &dozeSupport));
-                if (error == Error::None && dozeSupport) {
-                    mDisplayCapabilities.emplace(DisplayCapability::Doze);
+                if (error == Error::NONE && dozeSupport) {
+                    mDisplayCapabilities.emplace(DisplayCapability::DOZE);
                 }
             }
         });
@@ -613,7 +607,7 @@
     uint32_t numRequests = 0;
     auto intError = mComposer.validateDisplay(mId, &numTypes, &numRequests);
     auto error = static_cast<Error>(intError);
-    if (error != Error::None && error != Error::HasChanges) {
+    if (error != Error::NONE && !hasChangesError(error)) {
         return error;
     }
 
@@ -631,7 +625,7 @@
     auto intError = mComposer.presentOrValidateDisplay(
             mId, &numTypes, &numRequests, &presentFenceFd, state);
     auto error = static_cast<Error>(intError);
-    if (error != Error::None && error != Error::HasChanges) {
+    if (error != Error::NONE && !hasChangesError(error)) {
         return error;
     }
 
@@ -647,7 +641,7 @@
 }
 
 Error Display::setDisplayBrightness(float brightness) const {
-    auto intError = mComposer.setDisplayBrightness(mId, brightness);
+    const auto intError = mComposer.setDisplayBrightness(mId, brightness);
     return static_cast<Error>(intError);
 }
 
@@ -666,8 +660,7 @@
 }
 
 Error Display::setContentType(ContentType contentType) const {
-    using Hwc2_ContentType = Hwc2::IComposerClient::ContentType;
-    auto intError = mComposer.setContentType(mId, static_cast<Hwc2_ContentType>(contentType));
+    auto intError = mComposer.setContentType(mId, contentType);
     return static_cast<Error>(intError);
 }
 
@@ -676,21 +669,18 @@
 void Display::setConnected(bool connected) {
     if (!mIsConnected && connected) {
         mComposer.setClientTargetSlotCount(mId);
-        if (mType == DisplayType::Physical) {
+        if (mType == DisplayType::PHYSICAL) {
             loadConfigs();
         }
     }
     mIsConnected = connected;
 }
 
-int32_t Display::getAttribute(hwc2_config_t configId, Attribute attribute)
-{
+int32_t Display::getAttribute(HWConfigId configId, Attribute attribute) {
     int32_t value = 0;
-    auto intError = mComposer.getDisplayAttribute(mId, configId,
-            static_cast<Hwc2::IComposerClient::Attribute>(attribute),
-            &value);
+    auto intError = mComposer.getDisplayAttribute(mId, configId, attribute, &value);
     auto error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         ALOGE("getDisplayAttribute(%" PRIu64 ", %u, %s) failed: %s (%d)", mId,
                 configId, to_string(attribute).c_str(),
                 to_string(error).c_str(), intError);
@@ -699,17 +689,16 @@
     return value;
 }
 
-void Display::loadConfig(hwc2_config_t configId)
-{
+void Display::loadConfig(HWConfigId configId) {
     ALOGV("[%" PRIu64 "] loadConfig(%u)", mId, configId);
 
     auto config = Config::Builder(*this, configId)
-                          .setWidth(getAttribute(configId, Attribute::Width))
-                          .setHeight(getAttribute(configId, Attribute::Height))
-                          .setVsyncPeriod(getAttribute(configId, Attribute::VsyncPeriod))
-                          .setDpiX(getAttribute(configId, Attribute::DpiX))
-                          .setDpiY(getAttribute(configId, Attribute::DpiY))
-                          .setConfigGroup(getAttribute(configId, Attribute::ConfigGroup))
+                          .setWidth(getAttribute(configId, hal::Attribute::WIDTH))
+                          .setHeight(getAttribute(configId, hal::Attribute::HEIGHT))
+                          .setVsyncPeriod(getAttribute(configId, hal::Attribute::VSYNC_PERIOD))
+                          .setDpiX(getAttribute(configId, hal::Attribute::DPI_X))
+                          .setDpiY(getAttribute(configId, hal::Attribute::DPI_Y))
+                          .setConfigGroup(getAttribute(configId, hal::Attribute::CONFIG_GROUP))
                           .build();
     mConfigs.emplace(configId, std::move(config));
 }
@@ -718,10 +707,10 @@
 {
     ALOGV("[%" PRIu64 "] loadConfigs", mId);
 
-    std::vector<Hwc2::Config> configIds;
+    std::vector<HWConfigId> configIds;
     auto intError = mComposer.getDisplayConfigs(mId, &configIds);
     auto error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         ALOGE("[%" PRIu64 "] getDisplayConfigs [2] failed: %s (%d)", mId,
                 to_string(error).c_str(), intError);
         return;
@@ -734,7 +723,7 @@
 
 // Other Display methods
 
-HWC2::Layer* Display::getLayerById(hwc2_layer_t id) const {
+HWC2::Layer* Display::getLayerById(HWLayerId id) const {
     if (mLayers.count(id) == 0) {
         return nullptr;
     }
@@ -750,7 +739,7 @@
 namespace impl {
 
 Layer::Layer(android::Hwc2::Composer& composer, const std::unordered_set<Capability>& capabilities,
-             hwc2_display_t displayId, hwc2_layer_t layerId)
+             HWDisplayId displayId, HWLayerId layerId)
       : mComposer(composer),
         mCapabilities(capabilities),
         mDisplayId(displayId),
@@ -763,9 +752,10 @@
 {
     auto intError = mComposer.destroyLayer(mDisplayId, mId);
     auto error = static_cast<Error>(intError);
-    ALOGE_IF(error != Error::None, "destroyLayer(%" PRIu64 ", %" PRIu64 ")"
-            " failed: %s (%d)", mDisplayId, mId, to_string(error).c_str(),
-            intError);
+    ALOGE_IF(error != Error::NONE,
+             "destroyLayer(%" PRIu64 ", %" PRIu64 ")"
+             " failed: %s (%d)",
+             mDisplayId, mId, to_string(error).c_str(), intError);
 }
 
 Error Layer::setCursorPosition(int32_t x, int32_t y)
@@ -778,7 +768,7 @@
         const sp<Fence>& acquireFence)
 {
     if (buffer == nullptr && mBufferSlot == slot) {
-        return Error::None;
+        return Error::NONE;
     }
     mBufferSlot = slot;
 
@@ -792,7 +782,7 @@
 {
     if (damage.isRect() && mDamageRegion.isRect() &&
         (damage.getBounds() == mDamageRegion.getBounds())) {
-        return Error::None;
+        return Error::NONE;
     }
     mDamageRegion = damage;
 
@@ -820,30 +810,25 @@
 
 Error Layer::setBlendMode(BlendMode mode)
 {
-    auto intMode = static_cast<Hwc2::IComposerClient::BlendMode>(mode);
-    auto intError = mComposer.setLayerBlendMode(mDisplayId, mId, intMode);
+    auto intError = mComposer.setLayerBlendMode(mDisplayId, mId, mode);
     return static_cast<Error>(intError);
 }
 
-Error Layer::setColor(hwc_color_t color)
-{
-    Hwc2::IComposerClient::Color hwcColor{color.r, color.g, color.b, color.a};
-    auto intError = mComposer.setLayerColor(mDisplayId, mId, hwcColor);
+Error Layer::setColor(Color color) {
+    auto intError = mComposer.setLayerColor(mDisplayId, mId, color);
     return static_cast<Error>(intError);
 }
 
 Error Layer::setCompositionType(Composition type)
 {
-    auto intType = static_cast<Hwc2::IComposerClient::Composition>(type);
-    auto intError = mComposer.setLayerCompositionType(
-            mDisplayId, mId, intType);
+    auto intError = mComposer.setLayerCompositionType(mDisplayId, mId, type);
     return static_cast<Error>(intError);
 }
 
 Error Layer::setDataspace(Dataspace dataspace)
 {
     if (dataspace == mDataSpace) {
-        return Error::None;
+        return Error::NONE;
     }
     mDataSpace = dataspace;
     auto intError = mComposer.setLayerDataspace(mDisplayId, mId, mDataSpace);
@@ -854,7 +839,7 @@
         const android::HdrMetadata& metadata)
 {
     if (metadata == mHdrMetadata) {
-        return Error::None;
+        return Error::NONE;
     }
 
     mHdrMetadata = metadata;
@@ -901,7 +886,7 @@
                 {Hwc2::PerFrameMetadataKey::HDR10_PLUS_SEI, mHdrMetadata.hdr10plus});
         Error setMetadataBlobsError = static_cast<Error>(
                 mComposer.setLayerPerFrameMetadataBlobs(mDisplayId, mId, perFrameMetadataBlobs));
-        if (error == Error::None) {
+        if (error == Error::NONE) {
             return setMetadataBlobsError;
         }
     }
@@ -924,10 +909,10 @@
 
 Error Layer::setSidebandStream(const native_handle_t* stream)
 {
-    if (mCapabilities.count(Capability::SidebandStream) == 0) {
+    if (mCapabilities.count(Capability::SIDEBAND_STREAM) == 0) {
         ALOGE("Attempted to call setSidebandStream without checking that the "
                 "device supports sideband streams");
-        return Error::Unsupported;
+        return Error::UNSUPPORTED;
     }
     auto intError = mComposer.setLayerSidebandStream(mDisplayId, mId, stream);
     return static_cast<Error>(intError);
@@ -952,7 +937,7 @@
 {
     if (region.isRect() && mVisibleRegion.isRect() &&
         (region.getBounds() == mVisibleRegion.getBounds())) {
-        return Error::None;
+        return Error::NONE;
     }
     mVisibleRegion = region;
 
@@ -984,11 +969,11 @@
 // Composer HAL 2.3
 Error Layer::setColorTransform(const android::mat4& matrix) {
     if (matrix == mColorMatrix) {
-        return Error::None;
+        return Error::NONE;
     }
     auto intError = mComposer.setLayerColorTransform(mDisplayId, mId, matrix.asArray());
     Error error = static_cast<Error>(intError);
-    if (error != Error::None) {
+    if (error != Error::NONE) {
         return error;
     }
     mColorMatrix = matrix;
@@ -1004,6 +989,7 @@
 
 } // namespace impl
 } // namespace HWC2
+} // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
 #pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index 6549525..af31df8 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h
@@ -17,16 +17,9 @@
 #ifndef ANDROID_SF_HWC2_H
 #define ANDROID_SF_HWC2_H
 
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
 #include <gui/HdrMetadata.h>
 #include <math/mat4.h>
 #include <ui/DisplayInfo.h>
-#include <ui/GraphicTypes.h>
 #include <ui/HdrCapabilities.h>
 #include <ui/Region.h>
 #include <utils/Log.h>
@@ -39,6 +32,8 @@
 #include <unordered_set>
 #include <vector>
 
+#include "Hal.h"
+
 namespace android {
     struct DisplayedFrameStats;
     class Fence;
@@ -49,13 +44,12 @@
     }
 
     class TestableSurfaceFlinger;
-}
 
 namespace HWC2 {
 
 class Layer;
-using VsyncPeriodChangeConstraints = hwc_vsync_period_change_constraints_t;
-using VsyncPeriodChangeTimeline = hwc_vsync_period_change_timeline_t;
+
+namespace hal = android::hardware::graphics::composer::hal;
 
 // Implement this interface to receive hardware composer events.
 //
@@ -68,21 +62,20 @@
 // from different hardware composer instances.
 class ComposerCallback {
  public:
-    virtual void onHotplugReceived(int32_t sequenceId, hwc2_display_t display,
-                                   Connection connection) = 0;
-    virtual void onRefreshReceived(int32_t sequenceId,
-                                   hwc2_display_t display) = 0;
-    virtual void onVsyncReceived(int32_t sequenceId, hwc2_display_t display, int64_t timestamp,
-                                 std::optional<hwc2_vsync_period_t> vsyncPeriod) = 0;
-    virtual void onVsyncPeriodTimingChangedReceived(
-            int32_t sequenceId, hwc2_display_t display,
-            const hwc_vsync_period_change_timeline_t& updatedTimeline) = 0;
-    virtual void onSeamlessPossible(int32_t sequenceId, hwc2_display_t display) = 0;
+     virtual void onHotplugReceived(int32_t sequenceId, hal::HWDisplayId display,
+                                    hal::Connection connection) = 0;
+     virtual void onRefreshReceived(int32_t sequenceId, hal::HWDisplayId display) = 0;
+     virtual void onVsyncReceived(int32_t sequenceId, hal::HWDisplayId display, int64_t timestamp,
+                                  std::optional<hal::VsyncPeriodNanos> vsyncPeriod) = 0;
+     virtual void onVsyncPeriodTimingChangedReceived(
+             int32_t sequenceId, hal::HWDisplayId display,
+             const hal::VsyncPeriodChangeTimeline& updatedTimeline) = 0;
+     virtual void onSeamlessPossible(int32_t sequenceId, hal::HWDisplayId display) = 0;
 
-    virtual ~ComposerCallback() = default;
+     virtual ~ComposerCallback() = default;
 };
 
-// Convenience C++ class to access hwc2_device_t Display functions directly.
+// Convenience C++ class to access per display functions directly.
 class Display {
 public:
     virtual ~Display();
@@ -92,7 +85,7 @@
         class Builder
         {
         public:
-            Builder(Display& display, hwc2_config_t id);
+            Builder(Display& display, hal::HWConfigId id);
 
             std::shared_ptr<const Config> build() {
                 return std::const_pointer_cast<const Config>(
@@ -137,8 +130,8 @@
             std::shared_ptr<Config> mConfig;
         };
 
-        hwc2_display_t getDisplayId() const { return mDisplay.getId(); }
-        hwc2_config_t getId() const { return mId; }
+        hal::HWDisplayId getDisplayId() const { return mDisplay.getId(); }
+        hal::HWConfigId getId() const { return mId; }
 
         int32_t getWidth() const { return mWidth; }
         int32_t getHeight() const { return mHeight; }
@@ -148,10 +141,10 @@
         int32_t getConfigGroup() const { return mConfigGroup; }
 
     private:
-        Config(Display& display, hwc2_config_t id);
+        Config(Display& display, hal::HWConfigId id);
 
         Display& mDisplay;
-        hwc2_config_t mId;
+        hal::HWConfigId mId;
 
         int32_t mWidth;
         int32_t mHeight;
@@ -161,168 +154,173 @@
         int32_t mConfigGroup;
     };
 
-    virtual hwc2_display_t getId() const = 0;
+    virtual hal::HWDisplayId getId() const = 0;
     virtual bool isConnected() const = 0;
     virtual void setConnected(bool connected) = 0; // For use by Device only
-    virtual const std::unordered_set<DisplayCapability>& getCapabilities() const = 0;
+    virtual const std::unordered_set<hal::DisplayCapability>& getCapabilities() const = 0;
     virtual bool isVsyncPeriodSwitchSupported() const = 0;
 
-    [[clang::warn_unused_result]] virtual Error acceptChanges() = 0;
-    [[clang::warn_unused_result]] virtual Error createLayer(Layer** outLayer) = 0;
-    [[clang::warn_unused_result]] virtual Error destroyLayer(Layer* layer) = 0;
-    [[clang::warn_unused_result]] virtual Error getActiveConfig(
+    [[clang::warn_unused_result]] virtual hal::Error acceptChanges() = 0;
+    [[clang::warn_unused_result]] virtual hal::Error createLayer(Layer** outLayer) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error destroyLayer(Layer* layer) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getActiveConfig(
             std::shared_ptr<const Config>* outConfig) const = 0;
-    [[clang::warn_unused_result]] virtual Error getActiveConfigIndex(int* outIndex) const = 0;
-    [[clang::warn_unused_result]] virtual Error getChangedCompositionTypes(
-            std::unordered_map<Layer*, Composition>* outTypes) = 0;
-    [[clang::warn_unused_result]] virtual Error getColorModes(
-            std::vector<android::ui::ColorMode>* outModes) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getActiveConfigIndex(int* outIndex) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getChangedCompositionTypes(
+            std::unordered_map<Layer*, hal::Composition>* outTypes) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getColorModes(
+            std::vector<hal::ColorMode>* outModes) const = 0;
     // Returns a bitmask which contains HdrMetadata::Type::*.
     [[clang::warn_unused_result]] virtual int32_t getSupportedPerFrameMetadata() const = 0;
-    [[clang::warn_unused_result]] virtual Error getRenderIntents(
-            android::ui::ColorMode colorMode,
-            std::vector<android::ui::RenderIntent>* outRenderIntents) const = 0;
-    [[clang::warn_unused_result]] virtual Error getDataspaceSaturationMatrix(
-            android::ui::Dataspace dataspace, android::mat4* outMatrix) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getRenderIntents(
+            hal::ColorMode colorMode, std::vector<hal::RenderIntent>* outRenderIntents) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getDataspaceSaturationMatrix(
+            hal::Dataspace dataspace, android::mat4* outMatrix) = 0;
 
-    // Doesn't call into the HWC2 device, so no Errors are possible
-    virtual std::vector<std::shared_ptr<const Config>> getConfigs() const = 0;
+    // Doesn't call into the HWC2 device, so no errors are possible
+    [[clang::warn_unused_result]] virtual std::vector<std::shared_ptr<const Config>> getConfigs()
+            const = 0;
 
-    [[clang::warn_unused_result]] virtual Error getName(std::string* outName) const = 0;
-    [[clang::warn_unused_result]] virtual Error getRequests(
-            DisplayRequest* outDisplayRequests,
-            std::unordered_map<Layer*, LayerRequest>* outLayerRequests) = 0;
-    [[clang::warn_unused_result]] virtual Error getConnectionType(
+    [[clang::warn_unused_result]] virtual hal::Error getName(std::string* outName) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getRequests(
+            hal::DisplayRequest* outDisplayRequests,
+            std::unordered_map<Layer*, hal::LayerRequest>* outLayerRequests) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getConnectionType(
             android::DisplayConnectionType*) const = 0;
-    [[clang::warn_unused_result]] virtual Error supportsDoze(bool* outSupport) const = 0;
-    [[clang::warn_unused_result]] virtual Error getHdrCapabilities(
+    [[clang::warn_unused_result]] virtual hal::Error supportsDoze(bool* outSupport) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getHdrCapabilities(
             android::HdrCapabilities* outCapabilities) const = 0;
-    [[clang::warn_unused_result]] virtual Error getDisplayedContentSamplingAttributes(
-            android::ui::PixelFormat* outFormat, android::ui::Dataspace* outDataspace,
+    [[clang::warn_unused_result]] virtual hal::Error getDisplayedContentSamplingAttributes(
+            hal::PixelFormat* outFormat, hal::Dataspace* outDataspace,
             uint8_t* outComponentMask) const = 0;
-    [[clang::warn_unused_result]] virtual Error setDisplayContentSamplingEnabled(
+    [[clang::warn_unused_result]] virtual hal::Error setDisplayContentSamplingEnabled(
             bool enabled, uint8_t componentMask, uint64_t maxFrames) const = 0;
-    [[clang::warn_unused_result]] virtual Error getDisplayedContentSample(
+    [[clang::warn_unused_result]] virtual hal::Error getDisplayedContentSample(
             uint64_t maxFrames, uint64_t timestamp,
             android::DisplayedFrameStats* outStats) const = 0;
-    [[clang::warn_unused_result]] virtual Error getReleaseFences(
+    [[clang::warn_unused_result]] virtual hal::Error getReleaseFences(
             std::unordered_map<Layer*, android::sp<android::Fence>>* outFences) const = 0;
-    [[clang::warn_unused_result]] virtual Error present(
+    [[clang::warn_unused_result]] virtual hal::Error present(
             android::sp<android::Fence>* outPresentFence) = 0;
-    [[clang::warn_unused_result]] virtual Error setActiveConfig(
+    [[clang::warn_unused_result]] virtual hal::Error setActiveConfig(
             const std::shared_ptr<const Config>& config) = 0;
-    [[clang::warn_unused_result]] virtual Error setClientTarget(
+    [[clang::warn_unused_result]] virtual hal::Error setClientTarget(
             uint32_t slot, const android::sp<android::GraphicBuffer>& target,
-            const android::sp<android::Fence>& acquireFence, android::ui::Dataspace dataspace) = 0;
-    [[clang::warn_unused_result]] virtual Error setColorMode(
-            android::ui::ColorMode mode, android::ui::RenderIntent renderIntent) = 0;
-    [[clang::warn_unused_result]] virtual Error setColorTransform(
-            const android::mat4& matrix, android_color_transform_t hint) = 0;
-    [[clang::warn_unused_result]] virtual Error setOutputBuffer(
+            const android::sp<android::Fence>& acquireFence, hal::Dataspace dataspace) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setColorMode(
+            hal::ColorMode mode, hal::RenderIntent renderIntent) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setColorTransform(
+            const android::mat4& matrix, hal::ColorTransform hint) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setOutputBuffer(
             const android::sp<android::GraphicBuffer>& buffer,
             const android::sp<android::Fence>& releaseFence) = 0;
-    [[clang::warn_unused_result]] virtual Error setPowerMode(PowerMode mode) = 0;
-    [[clang::warn_unused_result]] virtual Error setVsyncEnabled(Vsync enabled) = 0;
-    [[clang::warn_unused_result]] virtual Error validate(uint32_t* outNumTypes,
-                                                         uint32_t* outNumRequests) = 0;
-    [[clang::warn_unused_result]] virtual Error presentOrValidate(
+    [[clang::warn_unused_result]] virtual hal::Error setPowerMode(hal::PowerMode mode) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setVsyncEnabled(hal::Vsync enabled) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error validate(uint32_t* outNumTypes,
+                                                              uint32_t* outNumRequests) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error presentOrValidate(
             uint32_t* outNumTypes, uint32_t* outNumRequests,
             android::sp<android::Fence>* outPresentFence, uint32_t* state) = 0;
-    [[clang::warn_unused_result]] virtual Error setDisplayBrightness(float brightness) const = 0;
-    [[clang::warn_unused_result]] virtual Error getDisplayVsyncPeriod(
+    [[clang::warn_unused_result]] virtual hal::Error setDisplayBrightness(
+            float brightness) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getDisplayVsyncPeriod(
             nsecs_t* outVsyncPeriod) const = 0;
-    [[clang::warn_unused_result]] virtual Error setActiveConfigWithConstraints(
+    [[clang::warn_unused_result]] virtual hal::Error setActiveConfigWithConstraints(
             const std::shared_ptr<const HWC2::Display::Config>& config,
-            const VsyncPeriodChangeConstraints& constraints,
-            VsyncPeriodChangeTimeline* outTimeline) = 0;
-    [[clang::warn_unused_result]] virtual Error setAutoLowLatencyMode(bool on) const = 0;
-    [[clang::warn_unused_result]] virtual Error getSupportedContentTypes(
-            std::vector<HWC2::ContentType>*) const = 0;
-    [[clang::warn_unused_result]] virtual Error setContentType(HWC2::ContentType) const = 0;
+            const hal::VsyncPeriodChangeConstraints& constraints,
+            hal::VsyncPeriodChangeTimeline* outTimeline) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setAutoLowLatencyMode(bool on) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error getSupportedContentTypes(
+            std::vector<hal::ContentType>*) const = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setContentType(hal::ContentType) const = 0;
 };
 
 namespace impl {
 
 class Display : public HWC2::Display {
 public:
-    Display(android::Hwc2::Composer& composer, const std::unordered_set<Capability>& capabilities,
-            hwc2_display_t id, DisplayType type);
+    Display(android::Hwc2::Composer& composer,
+            const std::unordered_set<hal::Capability>& capabilities, hal::HWDisplayId id,
+            hal::DisplayType type);
     ~Display() override;
 
     // Required by HWC2
-    Error acceptChanges() override;
-    Error createLayer(Layer** outLayer) override;
-    Error destroyLayer(Layer* layer) override;
-    Error getActiveConfig(std::shared_ptr<const Config>* outConfig) const override;
-    Error getActiveConfigIndex(int* outIndex) const override;
-    Error getChangedCompositionTypes(std::unordered_map<Layer*, Composition>* outTypes) override;
-    Error getColorModes(std::vector<android::ui::ColorMode>* outModes) const override;
+    hal::Error acceptChanges() override;
+    hal::Error createLayer(Layer** outLayer) override;
+    hal::Error destroyLayer(Layer* layer) override;
+    hal::Error getActiveConfig(std::shared_ptr<const Config>* outConfig) const override;
+    hal::Error getActiveConfigIndex(int* outIndex) const override;
+    hal::Error getChangedCompositionTypes(
+            std::unordered_map<Layer*, hal::Composition>* outTypes) override;
+    hal::Error getColorModes(std::vector<hal::ColorMode>* outModes) const override;
     // Returns a bitmask which contains HdrMetadata::Type::*.
     int32_t getSupportedPerFrameMetadata() const override;
-    Error getRenderIntents(android::ui::ColorMode colorMode,
-                           std::vector<android::ui::RenderIntent>* outRenderIntents) const override;
-    Error getDataspaceSaturationMatrix(android::ui::Dataspace dataspace,
-                                       android::mat4* outMatrix) override;
+    hal::Error getRenderIntents(hal::ColorMode colorMode,
+                                std::vector<hal::RenderIntent>* outRenderIntents) const override;
+    hal::Error getDataspaceSaturationMatrix(hal::Dataspace dataspace,
+                                            android::mat4* outMatrix) override;
 
     // Doesn't call into the HWC2 device, so no errors are possible
     std::vector<std::shared_ptr<const Config>> getConfigs() const override;
 
-    Error getName(std::string* outName) const override;
-    Error getRequests(DisplayRequest* outDisplayRequests,
-                      std::unordered_map<Layer*, LayerRequest>* outLayerRequests) override;
-    Error getConnectionType(android::DisplayConnectionType*) const override;
-    Error supportsDoze(bool* outSupport) const override;
-    Error getHdrCapabilities(android::HdrCapabilities* outCapabilities) const override;
-    Error getDisplayedContentSamplingAttributes(android::ui::PixelFormat* outFormat,
-                                                android::ui::Dataspace* outDataspace,
-                                                uint8_t* outComponentMask) const override;
-    Error setDisplayContentSamplingEnabled(bool enabled, uint8_t componentMask,
-                                           uint64_t maxFrames) const override;
-    Error getDisplayedContentSample(uint64_t maxFrames, uint64_t timestamp,
-                                    android::DisplayedFrameStats* outStats) const override;
-    Error getReleaseFences(
+    hal::Error getName(std::string* outName) const override;
+    hal::Error getRequests(
+            hal::DisplayRequest* outDisplayRequests,
+            std::unordered_map<Layer*, hal::LayerRequest>* outLayerRequests) override;
+    hal::Error getConnectionType(android::DisplayConnectionType*) const override;
+    hal::Error supportsDoze(bool* outSupport) const override;
+    hal::Error getHdrCapabilities(android::HdrCapabilities* outCapabilities) const override;
+    hal::Error getDisplayedContentSamplingAttributes(hal::PixelFormat* outFormat,
+                                                     hal::Dataspace* outDataspace,
+                                                     uint8_t* outComponentMask) const override;
+    hal::Error setDisplayContentSamplingEnabled(bool enabled, uint8_t componentMask,
+                                                uint64_t maxFrames) const override;
+    hal::Error getDisplayedContentSample(uint64_t maxFrames, uint64_t timestamp,
+                                         android::DisplayedFrameStats* outStats) const override;
+    hal::Error getReleaseFences(
             std::unordered_map<Layer*, android::sp<android::Fence>>* outFences) const override;
-    Error present(android::sp<android::Fence>* outPresentFence) override;
-    Error setActiveConfig(const std::shared_ptr<const HWC2::Display::Config>& config) override;
-    Error setClientTarget(uint32_t slot, const android::sp<android::GraphicBuffer>& target,
-                          const android::sp<android::Fence>& acquireFence,
-                          android::ui::Dataspace dataspace) override;
-    Error setColorMode(android::ui::ColorMode mode,
-                       android::ui::RenderIntent renderIntent) override;
-    Error setColorTransform(const android::mat4& matrix, android_color_transform_t hint) override;
-    Error setOutputBuffer(const android::sp<android::GraphicBuffer>& buffer,
-                          const android::sp<android::Fence>& releaseFence) override;
-    Error setPowerMode(PowerMode mode) override;
-    Error setVsyncEnabled(Vsync enabled) override;
-    Error validate(uint32_t* outNumTypes, uint32_t* outNumRequests) override;
-    Error presentOrValidate(uint32_t* outNumTypes, uint32_t* outNumRequests,
-                            android::sp<android::Fence>* outPresentFence, uint32_t* state) override;
-    Error setDisplayBrightness(float brightness) const override;
-    Error getDisplayVsyncPeriod(nsecs_t* outVsyncPeriod) const override;
-    Error setActiveConfigWithConstraints(const std::shared_ptr<const HWC2::Display::Config>& config,
-                                         const VsyncPeriodChangeConstraints& constraints,
-                                         VsyncPeriodChangeTimeline* outTimeline) override;
-    Error setAutoLowLatencyMode(bool on) const override;
-    Error getSupportedContentTypes(
-            std::vector<HWC2::ContentType>* outSupportedContentTypes) const override;
-    Error setContentType(HWC2::ContentType contentType) const override;
+    hal::Error present(android::sp<android::Fence>* outPresentFence) override;
+    hal::Error setActiveConfig(const std::shared_ptr<const HWC2::Display::Config>& config) override;
+    hal::Error setClientTarget(uint32_t slot, const android::sp<android::GraphicBuffer>& target,
+                               const android::sp<android::Fence>& acquireFence,
+                               hal::Dataspace dataspace) override;
+    hal::Error setColorMode(hal::ColorMode mode, hal::RenderIntent renderIntent) override;
+    hal::Error setColorTransform(const android::mat4& matrix, hal::ColorTransform hint) override;
+    hal::Error setOutputBuffer(const android::sp<android::GraphicBuffer>& buffer,
+                               const android::sp<android::Fence>& releaseFence) override;
+    hal::Error setPowerMode(hal::PowerMode mode) override;
+    hal::Error setVsyncEnabled(hal::Vsync enabled) override;
+    hal::Error validate(uint32_t* outNumTypes, uint32_t* outNumRequests) override;
+    hal::Error presentOrValidate(uint32_t* outNumTypes, uint32_t* outNumRequests,
+                                 android::sp<android::Fence>* outPresentFence,
+                                 uint32_t* state) override;
+    hal::Error setDisplayBrightness(float brightness) const override;
+    hal::Error getDisplayVsyncPeriod(nsecs_t* outVsyncPeriod) const override;
+    hal::Error setActiveConfigWithConstraints(
+            const std::shared_ptr<const HWC2::Display::Config>& config,
+            const hal::VsyncPeriodChangeConstraints& constraints,
+            hal::VsyncPeriodChangeTimeline* outTimeline) override;
+    hal::Error setAutoLowLatencyMode(bool on) const override;
+    hal::Error getSupportedContentTypes(
+            std::vector<hal::ContentType>* outSupportedContentTypes) const override;
+    hal::Error setContentType(hal::ContentType contentType) const override;
     // Other Display methods
-    hwc2_display_t getId() const override { return mId; }
+    hal::HWDisplayId getId() const override { return mId; }
     bool isConnected() const override { return mIsConnected; }
     void setConnected(bool connected) override; // For use by Device only
-    const std::unordered_set<DisplayCapability>& getCapabilities() const override {
+    const std::unordered_set<hal::DisplayCapability>& getCapabilities() const override {
         return mDisplayCapabilities;
     };
     virtual bool isVsyncPeriodSwitchSupported() const override;
 
 private:
-    int32_t getAttribute(hwc2_config_t configId, Attribute attribute);
-    void loadConfig(hwc2_config_t configId);
+    int32_t getAttribute(hal::HWConfigId configId, hal::Attribute attribute);
+    void loadConfig(hal::HWConfigId configId);
     void loadConfigs();
 
     // This may fail (and return a null pointer) if no layer with this ID exists
     // on this display
-    Layer* getLayerById(hwc2_layer_t id) const;
+    Layer* getLayerById(hal::HWLayerId id) const;
 
     friend android::TestableSurfaceFlinger;
 
@@ -332,17 +330,17 @@
     // this HWC2::Display, so these references are guaranteed to be valid for
     // the lifetime of this object.
     android::Hwc2::Composer& mComposer;
-    const std::unordered_set<Capability>& mCapabilities;
+    const std::unordered_set<hal::Capability>& mCapabilities;
 
-    const hwc2_display_t mId;
-    DisplayType mType;
+    const hal::HWDisplayId mId;
+    hal::DisplayType mType;
     bool mIsConnected = false;
 
-    std::unordered_map<hwc2_layer_t, std::unique_ptr<Layer>> mLayers;
-    std::unordered_map<hwc2_config_t, std::shared_ptr<const Config>> mConfigs;
+    std::unordered_map<hal::HWLayerId, std::unique_ptr<Layer>> mLayers;
+    std::unordered_map<hal::HWConfigId, std::shared_ptr<const Config>> mConfigs;
 
     std::once_flag mDisplayCapabilityQueryFlag;
-    std::unordered_set<DisplayCapability> mDisplayCapabilities;
+    std::unordered_set<hal::DisplayCapability> mDisplayCapabilities;
 };
 
 } // namespace impl
@@ -351,99 +349,105 @@
 public:
     virtual ~Layer();
 
-    virtual hwc2_layer_t getId() const = 0;
+    virtual hal::HWLayerId getId() const = 0;
 
-    [[clang::warn_unused_result]] virtual Error setCursorPosition(int32_t x, int32_t y) = 0;
-    [[clang::warn_unused_result]] virtual Error setBuffer(
+    [[clang::warn_unused_result]] virtual hal::Error setCursorPosition(int32_t x, int32_t y) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setBuffer(
             uint32_t slot, const android::sp<android::GraphicBuffer>& buffer,
             const android::sp<android::Fence>& acquireFence) = 0;
-    [[clang::warn_unused_result]] virtual Error setSurfaceDamage(const android::Region& damage) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setSurfaceDamage(
+            const android::Region& damage) = 0;
 
-    [[clang::warn_unused_result]] virtual Error setBlendMode(BlendMode mode) = 0;
-    [[clang::warn_unused_result]] virtual Error setColor(hwc_color_t color) = 0;
-    [[clang::warn_unused_result]] virtual Error setCompositionType(Composition type) = 0;
-    [[clang::warn_unused_result]] virtual Error setDataspace(android::ui::Dataspace dataspace) = 0;
-    [[clang::warn_unused_result]] virtual Error setPerFrameMetadata(
+    [[clang::warn_unused_result]] virtual hal::Error setBlendMode(hal::BlendMode mode) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setColor(hal::Color color) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setCompositionType(hal::Composition type) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setDataspace(hal::Dataspace dataspace) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setPerFrameMetadata(
             const int32_t supportedPerFrameMetadata, const android::HdrMetadata& metadata) = 0;
-    [[clang::warn_unused_result]] virtual Error setDisplayFrame(const android::Rect& frame) = 0;
-    [[clang::warn_unused_result]] virtual Error setPlaneAlpha(float alpha) = 0;
-    [[clang::warn_unused_result]] virtual Error setSidebandStream(
+    [[clang::warn_unused_result]] virtual hal::Error setDisplayFrame(
+            const android::Rect& frame) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setPlaneAlpha(float alpha) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setSidebandStream(
             const native_handle_t* stream) = 0;
-    [[clang::warn_unused_result]] virtual Error setSourceCrop(const android::FloatRect& crop) = 0;
-    [[clang::warn_unused_result]] virtual Error setTransform(Transform transform) = 0;
-    [[clang::warn_unused_result]] virtual Error setVisibleRegion(const android::Region& region) = 0;
-    [[clang::warn_unused_result]] virtual Error setZOrder(uint32_t z) = 0;
-    [[clang::warn_unused_result]] virtual Error setInfo(uint32_t type, uint32_t appId) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setSourceCrop(
+            const android::FloatRect& crop) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setTransform(hal::Transform transform) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setVisibleRegion(
+            const android::Region& region) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setZOrder(uint32_t z) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setInfo(uint32_t type, uint32_t appId) = 0;
 
     // Composer HAL 2.3
-    [[clang::warn_unused_result]] virtual Error setColorTransform(const android::mat4& matrix) = 0;
+    [[clang::warn_unused_result]] virtual hal::Error setColorTransform(
+            const android::mat4& matrix) = 0;
 
     // Composer HAL 2.4
-    [[clang::warn_unused_result]] virtual Error setLayerGenericMetadata(
+    [[clang::warn_unused_result]] virtual hal::Error setLayerGenericMetadata(
             const std::string& name, bool mandatory, const std::vector<uint8_t>& value) = 0;
 };
 
 namespace impl {
 
-// Convenience C++ class to access hwc2_device_t Layer functions directly.
+// Convenience C++ class to access per layer functions directly.
 
 class Layer : public HWC2::Layer {
 public:
-    Layer(android::Hwc2::Composer& composer, const std::unordered_set<Capability>& capabilities,
-          hwc2_display_t displayId, hwc2_layer_t layerId);
+    Layer(android::Hwc2::Composer& composer,
+          const std::unordered_set<hal::Capability>& capabilities, hal::HWDisplayId displayId,
+          hal::HWLayerId layerId);
     ~Layer() override;
 
-    hwc2_layer_t getId() const override { return mId; }
+    hal::HWLayerId getId() const override { return mId; }
 
-    Error setCursorPosition(int32_t x, int32_t y) override;
-    Error setBuffer(uint32_t slot, const android::sp<android::GraphicBuffer>& buffer,
-                    const android::sp<android::Fence>& acquireFence) override;
-    Error setSurfaceDamage(const android::Region& damage) override;
+    hal::Error setCursorPosition(int32_t x, int32_t y) override;
+    hal::Error setBuffer(uint32_t slot, const android::sp<android::GraphicBuffer>& buffer,
+                         const android::sp<android::Fence>& acquireFence) override;
+    hal::Error setSurfaceDamage(const android::Region& damage) override;
 
-    Error setBlendMode(BlendMode mode) override;
-    Error setColor(hwc_color_t color) override;
-    Error setCompositionType(Composition type) override;
-    Error setDataspace(android::ui::Dataspace dataspace) override;
-    Error setPerFrameMetadata(const int32_t supportedPerFrameMetadata,
-                              const android::HdrMetadata& metadata) override;
-    Error setDisplayFrame(const android::Rect& frame) override;
-    Error setPlaneAlpha(float alpha) override;
-    Error setSidebandStream(const native_handle_t* stream) override;
-    Error setSourceCrop(const android::FloatRect& crop) override;
-    Error setTransform(Transform transform) override;
-    Error setVisibleRegion(const android::Region& region) override;
-    Error setZOrder(uint32_t z) override;
-    Error setInfo(uint32_t type, uint32_t appId) override;
+    hal::Error setBlendMode(hal::BlendMode mode) override;
+    hal::Error setColor(hal::Color color) override;
+    hal::Error setCompositionType(hal::Composition type) override;
+    hal::Error setDataspace(hal::Dataspace dataspace) override;
+    hal::Error setPerFrameMetadata(const int32_t supportedPerFrameMetadata,
+                                   const android::HdrMetadata& metadata) override;
+    hal::Error setDisplayFrame(const android::Rect& frame) override;
+    hal::Error setPlaneAlpha(float alpha) override;
+    hal::Error setSidebandStream(const native_handle_t* stream) override;
+    hal::Error setSourceCrop(const android::FloatRect& crop) override;
+    hal::Error setTransform(hal::Transform transform) override;
+    hal::Error setVisibleRegion(const android::Region& region) override;
+    hal::Error setZOrder(uint32_t z) override;
+    hal::Error setInfo(uint32_t type, uint32_t appId) override;
 
     // Composer HAL 2.3
-    Error setColorTransform(const android::mat4& matrix) override;
+    hal::Error setColorTransform(const android::mat4& matrix) override;
 
     // Composer HAL 2.4
-    Error setLayerGenericMetadata(const std::string& name, bool mandatory,
-                                  const std::vector<uint8_t>& value) override;
+    hal::Error setLayerGenericMetadata(const std::string& name, bool mandatory,
+                                       const std::vector<uint8_t>& value) override;
 
 private:
     // These are references to data owned by HWC2::Device, which will outlive
     // this HWC2::Layer, so these references are guaranteed to be valid for
     // the lifetime of this object.
     android::Hwc2::Composer& mComposer;
-    const std::unordered_set<Capability>& mCapabilities;
+    const std::unordered_set<hal::Capability>& mCapabilities;
 
-    hwc2_display_t mDisplayId;
-    hwc2_layer_t mId;
+    hal::HWDisplayId mDisplayId;
+    hal::HWLayerId mId;
 
     // Cached HWC2 data, to ensure the same commands aren't sent to the HWC
     // multiple times.
     android::Region mVisibleRegion = android::Region::INVALID_REGION;
     android::Region mDamageRegion = android::Region::INVALID_REGION;
-    android::ui::Dataspace mDataSpace = android::ui::Dataspace::UNKNOWN;
+    hal::Dataspace mDataSpace = hal::Dataspace::UNKNOWN;
     android::HdrMetadata mHdrMetadata;
     android::mat4 mColorMatrix;
     uint32_t mBufferSlot;
 };
 
 } // namespace impl
-
 } // namespace HWC2
+} // namespace android
 
 #endif // ANDROID_SF_HWC2_H
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index f30d662..4344a8d 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -60,7 +60,7 @@
 
 #define RETURN_IF_HWC_ERROR_FOR(what, error, displayId, ...) \
     do {                                                     \
-        if (error != HWC2::Error::None) {                    \
+        if (error != hal::Error::NONE) {                     \
             LOG_HWC_ERROR(what, error, displayId);           \
             return __VA_ARGS__;                              \
         }                                                    \
@@ -69,34 +69,34 @@
 #define RETURN_IF_HWC_ERROR(error, displayId, ...) \
     RETURN_IF_HWC_ERROR_FOR(__FUNCTION__, error, displayId, __VA_ARGS__)
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 namespace {
 
 using android::hardware::Return;
 using android::hardware::Void;
+using android::HWC2::ComposerCallback;
 
-class ComposerCallbackBridge : public android::Hwc2::IComposerCallback {
+class ComposerCallbackBridge : public hal::IComposerCallback {
 public:
-    ComposerCallbackBridge(HWC2::ComposerCallback* callback, int32_t sequenceId,
+    ComposerCallbackBridge(ComposerCallback* callback, int32_t sequenceId,
                            bool vsyncSwitchingSupported)
           : mCallback(callback),
             mSequenceId(sequenceId),
             mVsyncSwitchingSupported(vsyncSwitchingSupported) {}
 
-    android::hardware::Return<void> onHotplug(
-            android::Hwc2::Display display,
-            android::Hwc2::IComposerCallback::Connection conn) override {
-        HWC2::Connection connection = static_cast<HWC2::Connection>(conn);
-        mCallback->onHotplugReceived(mSequenceId, display, connection);
+    android::hardware::Return<void> onHotplug(hal::HWDisplayId display,
+                                              hal::Connection conn) override {
+        mCallback->onHotplugReceived(mSequenceId, display, conn);
         return android::hardware::Void();
     }
 
-    android::hardware::Return<void> onRefresh(android::Hwc2::Display display) override {
+    android::hardware::Return<void> onRefresh(hal::HWDisplayId display) override {
         mCallback->onRefreshReceived(mSequenceId, display);
         return android::hardware::Void();
     }
 
-    android::hardware::Return<void> onVsync(android::Hwc2::Display display,
-                                            int64_t timestamp) override {
+    android::hardware::Return<void> onVsync(hal::HWDisplayId display, int64_t timestamp) override {
         if (!mVsyncSwitchingSupported) {
             mCallback->onVsyncReceived(mSequenceId, display, timestamp, std::nullopt);
         } else {
@@ -105,9 +105,8 @@
         return android::hardware::Void();
     }
 
-    android::hardware::Return<void> onVsync_2_4(
-            android::Hwc2::Display display, int64_t timestamp,
-            android::Hwc2::VsyncPeriodNanos vsyncPeriodNanos) override {
+    android::hardware::Return<void> onVsync_2_4(hal::HWDisplayId display, int64_t timestamp,
+                                                hal::VsyncPeriodNanos vsyncPeriodNanos) override {
         if (mVsyncSwitchingSupported) {
             mCallback->onVsyncReceived(mSequenceId, display, timestamp,
                                        std::make_optional(vsyncPeriodNanos));
@@ -118,23 +117,19 @@
     }
 
     android::hardware::Return<void> onVsyncPeriodTimingChanged(
-            android::Hwc2::Display display,
-            const android::Hwc2::VsyncPeriodChangeTimeline& updatedTimeline) override {
-        hwc_vsync_period_change_timeline_t timeline;
-        timeline.newVsyncAppliedTimeNanos = updatedTimeline.newVsyncAppliedTimeNanos;
-        timeline.refreshRequired = updatedTimeline.refreshRequired;
-        timeline.refreshTimeNanos = updatedTimeline.refreshTimeNanos;
-        mCallback->onVsyncPeriodTimingChangedReceived(mSequenceId, display, timeline);
+            hal::HWDisplayId display,
+            const hal::VsyncPeriodChangeTimeline& updatedTimeline) override {
+        mCallback->onVsyncPeriodTimingChangedReceived(mSequenceId, display, updatedTimeline);
         return android::hardware::Void();
     }
 
-    android::hardware::Return<void> onSeamlessPossible(android::Hwc2::Display display) override {
+    android::hardware::Return<void> onSeamlessPossible(hal::HWDisplayId display) override {
         mCallback->onSeamlessPossible(mSequenceId, display);
         return android::hardware::Void();
     }
 
 private:
-    HWC2::ComposerCallback* mCallback;
+    ComposerCallback* mCallback;
     const int32_t mSequenceId;
     const bool mVsyncSwitchingSupported;
 };
@@ -173,12 +168,12 @@
     mComposer->registerCallback(callbackBridge);
 }
 
-bool HWComposer::getDisplayIdentificationData(hwc2_display_t hwcDisplayId, uint8_t* outPort,
+bool HWComposer::getDisplayIdentificationData(hal::HWDisplayId hwcDisplayId, uint8_t* outPort,
                                               DisplayIdentificationData* outData) const {
-    const auto error = static_cast<HWC2::Error>(
+    const auto error = static_cast<hal::Error>(
             mComposer->getDisplayIdentificationData(hwcDisplayId, outPort, outData));
-    if (error != HWC2::Error::None) {
-        if (error != HWC2::Error::Unsupported) {
+    if (error != hal::Error::NONE) {
+        if (error != hal::Error::UNSUPPORTED) {
             LOG_HWC_DISPLAY_ERROR(hwcDisplayId, to_string(error).c_str());
         }
         return false;
@@ -186,29 +181,29 @@
     return true;
 }
 
-bool HWComposer::hasCapability(HWC2::Capability capability) const {
+bool HWComposer::hasCapability(hal::Capability capability) const {
     return mCapabilities.count(capability) > 0;
 }
 
 bool HWComposer::hasDisplayCapability(DisplayId displayId,
-                                      HWC2::DisplayCapability capability) const {
+                                      hal::DisplayCapability capability) const {
     RETURN_IF_INVALID_DISPLAY(displayId, false);
     return mDisplayData.at(displayId).hwcDisplay->getCapabilities().count(capability) > 0;
 }
 
-std::optional<DisplayIdentificationInfo> HWComposer::onHotplug(hwc2_display_t hwcDisplayId,
-                                                               HWC2::Connection connection) {
+std::optional<DisplayIdentificationInfo> HWComposer::onHotplug(hal::HWDisplayId hwcDisplayId,
+                                                               hal::Connection connection) {
     switch (connection) {
-        case HWC2::Connection::Connected:
+        case hal::Connection::CONNECTED:
             return onHotplugConnect(hwcDisplayId);
-        case HWC2::Connection::Disconnected:
+        case hal::Connection::DISCONNECTED:
             return onHotplugDisconnect(hwcDisplayId);
-        case HWC2::Connection::Invalid:
+        case hal::Connection::INVALID:
             return {};
     }
 }
 
-bool HWComposer::onVsync(hwc2_display_t hwcDisplayId, int64_t timestamp) {
+bool HWComposer::onVsync(hal::HWDisplayId hwcDisplayId, int64_t timestamp) {
     const auto displayId = toPhysicalDisplayId(hwcDisplayId);
     if (!displayId) {
         LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Invalid HWC display");
@@ -260,16 +255,16 @@
               height, SurfaceFlinger::maxVirtualDisplaySize);
         return {};
     }
-    hwc2_display_t hwcDisplayId = 0;
-    const auto error = static_cast<HWC2::Error>(
+    hal::HWDisplayId hwcDisplayId = 0;
+    const auto error = static_cast<hal::Error>(
             mComposer->createVirtualDisplay(width, height, format, &hwcDisplayId));
-    if (error != HWC2::Error::None) {
+    if (error != hal::Error::NONE) {
         ALOGE("%s: Failed to create HWC virtual display", __FUNCTION__);
         return {};
     }
 
     auto display = std::make_unique<HWC2::impl::Display>(*mComposer.get(), mCapabilities,
-                                                         hwcDisplayId, HWC2::DisplayType::Virtual);
+                                                         hwcDisplayId, hal::DisplayType::VIRTUAL);
     display->setConnected(true);
 
     DisplayId displayId;
@@ -288,7 +283,7 @@
     return displayId;
 }
 
-void HWComposer::allocatePhysicalDisplay(hwc2_display_t hwcDisplayId, DisplayId displayId) {
+void HWComposer::allocatePhysicalDisplay(hal::HWDisplayId hwcDisplayId, DisplayId displayId) {
     if (!mInternalHwcDisplayId) {
         mInternalHwcDisplayId = hwcDisplayId;
     } else if (mInternalHwcDisplayId != hwcDisplayId && !mExternalHwcDisplayId) {
@@ -298,7 +293,7 @@
     auto& displayData = mDisplayData[displayId];
     auto newDisplay =
             std::make_unique<HWC2::impl::Display>(*mComposer.get(), mCapabilities, hwcDisplayId,
-                                                  HWC2::DisplayType::Physical);
+                                                  hal::DisplayType::PHYSICAL);
     newDisplay->setConnected(true);
     displayData.hwcDisplay = std::move(newDisplay);
     mPhysicalDisplayIdMap[hwcDisplayId] = displayId;
@@ -357,7 +352,7 @@
 
     std::shared_ptr<const HWC2::Display::Config> config;
     auto error = mDisplayData.at(displayId).hwcDisplay->getActiveConfig(&config);
-    if (error == HWC2::Error::BadConfig) {
+    if (error == hal::Error::BAD_CONFIG) {
         LOG_DISPLAY_ERROR(displayId, "No active config");
         return nullptr;
     }
@@ -408,7 +403,7 @@
 
     int index;
     auto error = mDisplayData.at(displayId).hwcDisplay->getActiveConfigIndex(&index);
-    if (error == HWC2::Error::BadConfig) {
+    if (error == hal::Error::BAD_CONFIG) {
         LOG_DISPLAY_ERROR(displayId, "No active config");
         return -1;
     }
@@ -446,7 +441,7 @@
     return NO_ERROR;
 }
 
-void HWComposer::setVsyncEnabled(DisplayId displayId, HWC2::Vsync enabled) {
+void HWComposer::setVsyncEnabled(DisplayId displayId, hal::Vsync enabled) {
     RETURN_IF_INVALID_DISPLAY(displayId);
     auto& displayData = mDisplayData[displayId];
 
@@ -471,7 +466,7 @@
     displayData.vsyncEnabled = enabled;
 
     const auto tag = "HW_VSYNC_ON_" + to_string(displayId);
-    ATRACE_INT(tag.c_str(), enabled == HWC2::Vsync::Enable ? 1 : 0);
+    ATRACE_INT(tag.c_str(), enabled == hal::Vsync::ENABLE ? 1 : 0);
 }
 
 status_t HWComposer::setClientTarget(DisplayId displayId, uint32_t slot,
@@ -502,7 +497,7 @@
     uint32_t numTypes = 0;
     uint32_t numRequests = 0;
 
-    HWC2::Error error = HWC2::Error::None;
+    hal::Error error = hal::Error::NONE;
 
     // First try to skip validate altogether when there is no client
     // composition.  When there is client composition, since we haven't
@@ -513,7 +508,7 @@
         sp<Fence> outPresentFence;
         uint32_t state = UINT32_MAX;
         error = hwcDisplay->presentOrValidate(&numTypes, &numRequests, &outPresentFence , &state);
-        if (error != HWC2::Error::HasChanges) {
+        if (!hasChangesError(error)) {
             RETURN_IF_HWC_ERROR_FOR("presentOrValidate", error, displayId, UNKNOWN_ERROR);
         }
         if (state == 1) { //Present Succeeded.
@@ -530,7 +525,7 @@
         error = hwcDisplay->validate(&numTypes, &numRequests);
     }
     ALOGV("SkipValidate failed, Falling back to SLOW validate/present");
-    if (error != HWC2::Error::HasChanges) {
+    if (!hasChangesError(error)) {
         RETURN_IF_HWC_ERROR_FOR("validate", error, displayId, BAD_INDEX);
     }
 
@@ -539,7 +534,7 @@
     error = hwcDisplay->getChangedCompositionTypes(&changedTypes);
     RETURN_IF_HWC_ERROR_FOR("getChangedCompositionTypes", error, displayId, BAD_INDEX);
 
-    auto displayRequests = static_cast<HWC2::DisplayRequest>(0);
+    auto displayRequests = static_cast<hal::DisplayRequest>(0);
     android::HWComposer::DeviceRequestedChanges::LayerRequests layerRequests;
     layerRequests.reserve(numRequests);
     error = hwcDisplay->getRequests(&displayRequests, &layerRequests);
@@ -580,7 +575,7 @@
 
     if (displayData.validateWasSkipped) {
         // explicitly flush all pending commands
-        auto error = static_cast<HWC2::Error>(mComposer->executeCommands());
+        auto error = static_cast<hal::Error>(mComposer->executeCommands());
         RETURN_IF_HWC_ERROR_FOR("executeCommands", error, displayId, UNKNOWN_ERROR);
         RETURN_IF_HWC_ERROR_FOR("present", displayData.presentError, displayId, UNKNOWN_ERROR);
         return NO_ERROR;
@@ -598,7 +593,7 @@
     return NO_ERROR;
 }
 
-status_t HWComposer::setPowerMode(DisplayId displayId, int32_t intMode) {
+status_t HWComposer::setPowerMode(DisplayId displayId, hal::PowerMode mode) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
 
     const auto& displayData = mDisplayData[displayId];
@@ -607,42 +602,41 @@
         return INVALID_OPERATION;
     }
 
-    auto mode = static_cast<HWC2::PowerMode>(intMode);
-    if (mode == HWC2::PowerMode::Off) {
-        setVsyncEnabled(displayId, HWC2::Vsync::Disable);
+    if (mode == hal::PowerMode::OFF) {
+        setVsyncEnabled(displayId, hal::Vsync::DISABLE);
     }
 
     auto& hwcDisplay = displayData.hwcDisplay;
     switch (mode) {
-        case HWC2::PowerMode::Off:
-        case HWC2::PowerMode::On:
+        case hal::PowerMode::OFF:
+        case hal::PowerMode::ON:
             ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str());
             {
                 auto error = hwcDisplay->setPowerMode(mode);
-                if (error != HWC2::Error::None) {
-                    LOG_HWC_ERROR(("setPowerMode(" + to_string(mode) + ")").c_str(),
-                                  error, displayId);
+                if (error != hal::Error::NONE) {
+                    LOG_HWC_ERROR(("setPowerMode(" + to_string(mode) + ")").c_str(), error,
+                                  displayId);
                 }
             }
             break;
-        case HWC2::PowerMode::Doze:
-        case HWC2::PowerMode::DozeSuspend:
+        case hal::PowerMode::DOZE:
+        case hal::PowerMode::DOZE_SUSPEND:
             ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str());
             {
                 bool supportsDoze = false;
                 auto error = hwcDisplay->supportsDoze(&supportsDoze);
-                if (error != HWC2::Error::None) {
+                if (error != hal::Error::NONE) {
                     LOG_HWC_ERROR("supportsDoze", error, displayId);
                 }
 
                 if (!supportsDoze) {
-                    mode = HWC2::PowerMode::On;
+                    mode = hal::PowerMode::ON;
                 }
 
                 error = hwcDisplay->setPowerMode(mode);
-                if (error != HWC2::Error::None) {
-                    LOG_HWC_ERROR(("setPowerMode(" + to_string(mode) + ")").c_str(),
-                                  error, displayId);
+                if (error != hal::Error::NONE) {
+                    LOG_HWC_ERROR(("setPowerMode(" + to_string(mode) + ")").c_str(), error,
+                                  displayId);
                 }
             }
             break;
@@ -655,8 +649,8 @@
 }
 
 status_t HWComposer::setActiveConfigWithConstraints(
-        DisplayId displayId, size_t configId, const HWC2::VsyncPeriodChangeConstraints& constraints,
-        HWC2::VsyncPeriodChangeTimeline* outTimeline) {
+        DisplayId displayId, size_t configId, const hal::VsyncPeriodChangeConstraints& constraints,
+        hal::VsyncPeriodChangeTimeline* outTimeline) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
 
     auto& displayData = mDisplayData[displayId];
@@ -677,9 +671,10 @@
 
     auto& displayData = mDisplayData[displayId];
     bool isIdentity = transform == mat4();
-    auto error = displayData.hwcDisplay->setColorTransform(transform,
-            isIdentity ? HAL_COLOR_TRANSFORM_IDENTITY :
-            HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX);
+    auto error = displayData.hwcDisplay
+                         ->setColorTransform(transform,
+                                             isIdentity ? hal::ColorTransform::IDENTITY
+                                                        : hal::ColorTransform::ARBITRARY_MATRIX);
     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
     return NO_ERROR;
 }
@@ -770,7 +765,7 @@
             mDisplayData[displayId]
                     .hwcDisplay->getDisplayedContentSamplingAttributes(outFormat, outDataspace,
                                                                        outComponentMask);
-    if (error == HWC2::Error::Unsupported) RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
+    if (error == hal::Error::UNSUPPORTED) RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
     return NO_ERROR;
 }
@@ -783,8 +778,8 @@
                                                                                  componentMask,
                                                                                  maxFrames);
 
-    if (error == HWC2::Error::Unsupported) RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
-    if (error == HWC2::Error::BadParameter) RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
+    if (error == hal::Error::UNSUPPORTED) RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
+    if (error == hal::Error::BAD_PARAMETER) RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
     return NO_ERROR;
 }
@@ -802,10 +797,10 @@
 status_t HWComposer::setDisplayBrightness(DisplayId displayId, float brightness) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error = mDisplayData[displayId].hwcDisplay->setDisplayBrightness(brightness);
-    if (error == HWC2::Error::Unsupported) {
+    if (error == hal::Error::UNSUPPORTED) {
         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
     }
-    if (error == HWC2::Error::BadParameter) {
+    if (error == hal::Error::BAD_PARAMETER) {
         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
     }
     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
@@ -819,10 +814,10 @@
 status_t HWComposer::setAutoLowLatencyMode(DisplayId displayId, bool on) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error = mDisplayData[displayId].hwcDisplay->setAutoLowLatencyMode(on);
-    if (error == HWC2::Error::Unsupported) {
+    if (error == hal::Error::UNSUPPORTED) {
         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
     }
-    if (error == HWC2::Error::BadParameter) {
+    if (error == hal::Error::BAD_PARAMETER) {
         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
     }
     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
@@ -830,7 +825,7 @@
 }
 
 status_t HWComposer::getSupportedContentTypes(
-        DisplayId displayId, std::vector<HWC2::ContentType>* outSupportedContentTypes) {
+        DisplayId displayId, std::vector<hal::ContentType>* outSupportedContentTypes) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error =
             mDisplayData[displayId].hwcDisplay->getSupportedContentTypes(outSupportedContentTypes);
@@ -840,13 +835,13 @@
     return NO_ERROR;
 }
 
-status_t HWComposer::setContentType(DisplayId displayId, HWC2::ContentType contentType) {
+status_t HWComposer::setContentType(DisplayId displayId, hal::ContentType contentType) {
     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
     const auto error = mDisplayData[displayId].hwcDisplay->setContentType(contentType);
-    if (error == HWC2::Error::Unsupported) {
+    if (error == hal::Error::UNSUPPORTED) {
         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION);
     }
-    if (error == HWC2::Error::BadParameter) {
+    if (error == hal::Error::BAD_PARAMETER) {
         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
     }
     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR);
@@ -862,7 +857,7 @@
     result.append(mComposer->dumpDebugInfo());
 }
 
-std::optional<DisplayId> HWComposer::toPhysicalDisplayId(hwc2_display_t hwcDisplayId) const {
+std::optional<DisplayId> HWComposer::toPhysicalDisplayId(hal::HWDisplayId hwcDisplayId) const {
     if (const auto it = mPhysicalDisplayIdMap.find(hwcDisplayId);
         it != mPhysicalDisplayIdMap.end()) {
         return it->second;
@@ -870,7 +865,7 @@
     return {};
 }
 
-std::optional<hwc2_display_t> HWComposer::fromPhysicalDisplayId(DisplayId displayId) const {
+std::optional<hal::HWDisplayId> HWComposer::fromPhysicalDisplayId(DisplayId displayId) const {
     if (const auto it = mDisplayData.find(displayId);
         it != mDisplayData.end() && !it->second.isVirtual) {
         return it->second.hwcDisplay->getId();
@@ -878,7 +873,7 @@
     return {};
 }
 
-bool HWComposer::shouldIgnoreHotplugConnect(hwc2_display_t hwcDisplayId,
+bool HWComposer::shouldIgnoreHotplugConnect(hal::HWDisplayId hwcDisplayId,
                                             bool hasDisplayIdentificationData) const {
     if (isUsingVrComposer() && mInternalHwcDisplayId) {
         ALOGE("Ignoring connection of external display %" PRIu64 " in VR mode", hwcDisplayId);
@@ -899,7 +894,8 @@
     return false;
 }
 
-std::optional<DisplayIdentificationInfo> HWComposer::onHotplugConnect(hwc2_display_t hwcDisplayId) {
+std::optional<DisplayIdentificationInfo> HWComposer::onHotplugConnect(
+        hal::HWDisplayId hwcDisplayId) {
     std::optional<DisplayIdentificationInfo> info;
     if (const auto displayId = toPhysicalDisplayId(hwcDisplayId)) {
         info = DisplayIdentificationInfo{.id = *displayId,
@@ -930,7 +926,7 @@
             } else {
                 ALOGW_IF(hasDisplayIdentificationData,
                          "Ignoring identification data for display %" PRIu64, hwcDisplayId);
-                port = isPrimary ? HWC_DISPLAY_PRIMARY : HWC_DISPLAY_EXTERNAL;
+                port = isPrimary ? LEGACY_DISPLAY_TYPE_PRIMARY : LEGACY_DISPLAY_TYPE_EXTERNAL;
             }
 
             return DisplayIdentificationInfo{.id = getFallbackDisplayId(port),
@@ -947,7 +943,7 @@
 }
 
 std::optional<DisplayIdentificationInfo> HWComposer::onHotplugDisconnect(
-        hwc2_display_t hwcDisplayId) {
+        hal::HWDisplayId hwcDisplayId) {
     const auto displayId = toPhysicalDisplayId(hwcDisplayId);
     if (!displayId) {
         ALOGE("Ignoring disconnection of invalid HWC display %" PRIu64, hwcDisplayId);
@@ -969,10 +965,10 @@
 }
 
 void HWComposer::loadCapabilities() {
-    static_assert(sizeof(HWC2::Capability) == sizeof(int32_t), "Capability size has changed");
+    static_assert(sizeof(hal::Capability) == sizeof(int32_t), "Capability size has changed");
     auto capabilities = mComposer->getCapabilities();
     for (auto capability : capabilities) {
-        mCapabilities.emplace(static_cast<HWC2::Capability>(capability));
+        mCapabilities.emplace(static_cast<hal::Capability>(capability));
     }
 }
 
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index e18419a..cfa2193 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -39,9 +39,12 @@
 
 #include "DisplayIdentification.h"
 #include "HWC2.h"
+#include "Hal.h"
 
 namespace android {
 
+namespace hal = hardware::graphics::composer::hal;
+
 struct DisplayedFrameStats;
 class GraphicBuffer;
 class TestableSurfaceFlinger;
@@ -66,18 +69,18 @@
 
     virtual void setConfiguration(HWC2::ComposerCallback* callback, int32_t sequenceId) = 0;
 
-    virtual bool getDisplayIdentificationData(hwc2_display_t hwcDisplayId, uint8_t* outPort,
+    virtual bool getDisplayIdentificationData(hal::HWDisplayId hwcDisplayId, uint8_t* outPort,
                                               DisplayIdentificationData* outData) const = 0;
 
-    virtual bool hasCapability(HWC2::Capability capability) const = 0;
+    virtual bool hasCapability(hal::Capability capability) const = 0;
     virtual bool hasDisplayCapability(DisplayId displayId,
-                                      HWC2::DisplayCapability capability) const = 0;
+                                      hal::DisplayCapability capability) const = 0;
 
     // Attempts to allocate a virtual display and returns its ID if created on the HWC device.
     virtual std::optional<DisplayId> allocateVirtualDisplay(uint32_t width, uint32_t height,
                                                             ui::PixelFormat* format) = 0;
 
-    virtual void allocatePhysicalDisplay(hwc2_display_t hwcDisplayId, DisplayId displayId) = 0;
+    virtual void allocatePhysicalDisplay(hal::HWDisplayId hwcDisplayId, DisplayId displayId) = 0;
 
     // Attempts to create a new layer on this display
     virtual HWC2::Layer* createLayer(DisplayId displayId) = 0;
@@ -85,9 +88,9 @@
     virtual void destroyLayer(DisplayId displayId, HWC2::Layer* layer) = 0;
 
     struct DeviceRequestedChanges {
-        using ChangedTypes = std::unordered_map<HWC2::Layer*, HWC2::Composition>;
-        using DisplayRequests = HWC2::DisplayRequest;
-        using LayerRequests = std::unordered_map<HWC2::Layer*, HWC2::LayerRequest>;
+        using ChangedTypes = std::unordered_map<HWC2::Layer*, hal::Composition>;
+        using DisplayRequests = hal::DisplayRequest;
+        using LayerRequests = std::unordered_map<HWC2::Layer*, hal::LayerRequest>;
 
         ChangedTypes changedTypes;
         DisplayRequests displayRequests;
@@ -113,7 +116,7 @@
     virtual status_t presentAndGetReleaseFences(DisplayId displayId) = 0;
 
     // set power mode
-    virtual status_t setPowerMode(DisplayId displayId, int mode) = 0;
+    virtual status_t setPowerMode(DisplayId displayId, hal::PowerMode mode) = 0;
 
     // Sets a color transform to be applied to the result of composition
     virtual status_t setColorTransform(DisplayId displayId, const mat4& transform) = 0;
@@ -167,11 +170,11 @@
     // Returns stable display ID (and display name on connection of new or previously disconnected
     // display), or std::nullopt if hotplug event was ignored.
     // This function is called from SurfaceFlinger.
-    virtual std::optional<DisplayIdentificationInfo> onHotplug(hwc2_display_t hwcDisplayId,
-                                                               HWC2::Connection connection) = 0;
+    virtual std::optional<DisplayIdentificationInfo> onHotplug(hal::HWDisplayId hwcDisplayId,
+                                                               hal::Connection connection) = 0;
 
-    virtual bool onVsync(hwc2_display_t hwcDisplayId, int64_t timestamp) = 0;
-    virtual void setVsyncEnabled(DisplayId displayId, HWC2::Vsync enabled) = 0;
+    virtual bool onVsync(hal::HWDisplayId hwcDisplayId, int64_t timestamp) = 0;
+    virtual void setVsyncEnabled(DisplayId displayId, hal::Vsync enabled) = 0;
 
     virtual nsecs_t getRefreshTimestamp(DisplayId displayId) const = 0;
     virtual bool isConnected(DisplayId displayId) const = 0;
@@ -197,12 +200,12 @@
     virtual nsecs_t getDisplayVsyncPeriod(DisplayId displayId) const = 0;
     virtual status_t setActiveConfigWithConstraints(
             DisplayId displayId, size_t configId,
-            const HWC2::VsyncPeriodChangeConstraints& constraints,
-            HWC2::VsyncPeriodChangeTimeline* outTimeline) = 0;
+            const hal::VsyncPeriodChangeConstraints& constraints,
+            hal::VsyncPeriodChangeTimeline* outTimeline) = 0;
     virtual status_t setAutoLowLatencyMode(DisplayId displayId, bool on) = 0;
     virtual status_t getSupportedContentTypes(
-            DisplayId displayId, std::vector<HWC2::ContentType>* outSupportedContentTypes) = 0;
-    virtual status_t setContentType(DisplayId displayId, HWC2::ContentType contentType) = 0;
+            DisplayId displayId, std::vector<hal::ContentType>* outSupportedContentTypes) = 0;
+    virtual status_t setContentType(DisplayId displayId, hal::ContentType contentType) = 0;
     virtual const std::unordered_map<std::string, bool>& getSupportedLayerGenericMetadata()
             const = 0;
 
@@ -212,11 +215,11 @@
     virtual Hwc2::Composer* getComposer() const = 0;
 
     // TODO(b/74619554): Remove special cases for internal/external display.
-    virtual std::optional<hwc2_display_t> getInternalHwcDisplayId() const = 0;
-    virtual std::optional<hwc2_display_t> getExternalHwcDisplayId() const = 0;
+    virtual std::optional<hal::HWDisplayId> getInternalHwcDisplayId() const = 0;
+    virtual std::optional<hal::HWDisplayId> getExternalHwcDisplayId() const = 0;
 
-    virtual std::optional<DisplayId> toPhysicalDisplayId(hwc2_display_t hwcDisplayId) const = 0;
-    virtual std::optional<hwc2_display_t> fromPhysicalDisplayId(DisplayId displayId) const = 0;
+    virtual std::optional<DisplayId> toPhysicalDisplayId(hal::HWDisplayId hwcDisplayId) const = 0;
+    virtual std::optional<hal::HWDisplayId> fromPhysicalDisplayId(DisplayId displayId) const = 0;
 };
 
 namespace impl {
@@ -230,19 +233,19 @@
 
     void setConfiguration(HWC2::ComposerCallback* callback, int32_t sequenceId) override;
 
-    bool getDisplayIdentificationData(hwc2_display_t hwcDisplayId, uint8_t* outPort,
+    bool getDisplayIdentificationData(hal::HWDisplayId hwcDisplayId, uint8_t* outPort,
                                       DisplayIdentificationData* outData) const override;
 
-    bool hasCapability(HWC2::Capability capability) const override;
+    bool hasCapability(hal::Capability capability) const override;
     bool hasDisplayCapability(DisplayId displayId,
-                              HWC2::DisplayCapability capability) const override;
+                              hal::DisplayCapability capability) const override;
 
     // Attempts to allocate a virtual display and returns its ID if created on the HWC device.
     std::optional<DisplayId> allocateVirtualDisplay(uint32_t width, uint32_t height,
                                                     ui::PixelFormat* format) override;
 
     // Called from SurfaceFlinger, when the state for a new physical display needs to be recreated.
-    void allocatePhysicalDisplay(hwc2_display_t hwcDisplayId, DisplayId displayId) override;
+    void allocatePhysicalDisplay(hal::HWDisplayId hwcDisplayId, DisplayId displayId) override;
 
     // Attempts to create a new layer on this display
     HWC2::Layer* createLayer(DisplayId displayId) override;
@@ -260,7 +263,7 @@
     status_t presentAndGetReleaseFences(DisplayId displayId) override;
 
     // set power mode
-    status_t setPowerMode(DisplayId displayId, int mode) override;
+    status_t setPowerMode(DisplayId displayId, hal::PowerMode mode) override;
 
     // Sets a color transform to be applied to the result of composition
     status_t setColorTransform(DisplayId displayId, const mat4& transform) override;
@@ -308,11 +311,11 @@
 
     // Returns stable display ID (and display name on connection of new or previously disconnected
     // display), or std::nullopt if hotplug event was ignored.
-    std::optional<DisplayIdentificationInfo> onHotplug(hwc2_display_t hwcDisplayId,
-                                                       HWC2::Connection connection) override;
+    std::optional<DisplayIdentificationInfo> onHotplug(hal::HWDisplayId hwcDisplayId,
+                                                       hal::Connection connection) override;
 
-    bool onVsync(hwc2_display_t hwcDisplayId, int64_t timestamp) override;
-    void setVsyncEnabled(DisplayId displayId, HWC2::Vsync enabled) override;
+    bool onVsync(hal::HWDisplayId hwcDisplayId, int64_t timestamp) override;
+    void setVsyncEnabled(DisplayId displayId, hal::Vsync enabled) override;
 
     nsecs_t getRefreshTimestamp(DisplayId displayId) const override;
     bool isConnected(DisplayId displayId) const override;
@@ -337,12 +340,11 @@
     bool isVsyncPeriodSwitchSupported(DisplayId displayId) const override;
     nsecs_t getDisplayVsyncPeriod(DisplayId displayId) const override;
     status_t setActiveConfigWithConstraints(DisplayId displayId, size_t configId,
-                                            const HWC2::VsyncPeriodChangeConstraints& constraints,
-                                            HWC2::VsyncPeriodChangeTimeline* outTimeline) override;
+                                            const hal::VsyncPeriodChangeConstraints& constraints,
+                                            hal::VsyncPeriodChangeTimeline* outTimeline) override;
     status_t setAutoLowLatencyMode(DisplayId displayId, bool) override;
-    status_t getSupportedContentTypes(DisplayId displayId,
-                                      std::vector<HWC2::ContentType>*) override;
-    status_t setContentType(DisplayId displayId, HWC2::ContentType) override;
+    status_t getSupportedContentTypes(DisplayId displayId, std::vector<hal::ContentType>*) override;
+    status_t setContentType(DisplayId displayId, hal::ContentType) override;
 
     const std::unordered_map<std::string, bool>& getSupportedLayerGenericMetadata() const override;
 
@@ -352,23 +354,23 @@
     Hwc2::Composer* getComposer() const override { return mComposer.get(); }
 
     // TODO(b/74619554): Remove special cases for internal/external display.
-    std::optional<hwc2_display_t> getInternalHwcDisplayId() const override {
+    std::optional<hal::HWDisplayId> getInternalHwcDisplayId() const override {
         return mInternalHwcDisplayId;
     }
-    std::optional<hwc2_display_t> getExternalHwcDisplayId() const override {
+    std::optional<hal::HWDisplayId> getExternalHwcDisplayId() const override {
         return mExternalHwcDisplayId;
     }
 
-    std::optional<DisplayId> toPhysicalDisplayId(hwc2_display_t hwcDisplayId) const override;
-    std::optional<hwc2_display_t> fromPhysicalDisplayId(DisplayId displayId) const override;
+    std::optional<DisplayId> toPhysicalDisplayId(hal::HWDisplayId hwcDisplayId) const override;
+    std::optional<hal::HWDisplayId> fromPhysicalDisplayId(DisplayId displayId) const override;
 
 private:
     // For unit tests
     friend TestableSurfaceFlinger;
 
-    std::optional<DisplayIdentificationInfo> onHotplugConnect(hwc2_display_t hwcDisplayId);
-    std::optional<DisplayIdentificationInfo> onHotplugDisconnect(hwc2_display_t hwcDisplayId);
-    bool shouldIgnoreHotplugConnect(hwc2_display_t hwcDisplayId,
+    std::optional<DisplayIdentificationInfo> onHotplugConnect(hal::HWDisplayId hwcDisplayId);
+    std::optional<DisplayIdentificationInfo> onHotplugDisconnect(hal::HWDisplayId hwcDisplayId);
+    bool shouldIgnoreHotplugConnect(hal::HWDisplayId hwcDisplayId,
                                     bool hasDisplayIdentificationData) const;
 
     void loadCapabilities();
@@ -386,12 +388,12 @@
                 std::shared_ptr<const HWC2::Display::Config>> configMap;
 
         bool validateWasSkipped;
-        HWC2::Error presentError;
+        hal::Error presentError;
 
         bool vsyncTraceToggle = false;
 
         std::mutex vsyncEnabledLock;
-        HWC2::Vsync vsyncEnabled GUARDED_BY(vsyncEnabledLock) = HWC2::Vsync::Disable;
+        hal::Vsync vsyncEnabled GUARDED_BY(vsyncEnabledLock) = hal::Vsync::DISABLE;
 
         mutable std::mutex lastHwVsyncLock;
         nsecs_t lastHwVsync GUARDED_BY(lastHwVsyncLock) = 0;
@@ -400,13 +402,13 @@
     std::unordered_map<DisplayId, DisplayData> mDisplayData;
 
     std::unique_ptr<android::Hwc2::Composer> mComposer;
-    std::unordered_set<HWC2::Capability> mCapabilities;
+    std::unordered_set<hal::Capability> mCapabilities;
     std::unordered_map<std::string, bool> mSupportedLayerGenericMetadata;
     bool mRegisteredCallback = false;
 
-    std::unordered_map<hwc2_display_t, DisplayId> mPhysicalDisplayIdMap;
-    std::optional<hwc2_display_t> mInternalHwcDisplayId;
-    std::optional<hwc2_display_t> mExternalHwcDisplayId;
+    std::unordered_map<hal::HWDisplayId, DisplayId> mPhysicalDisplayIdMap;
+    std::optional<hal::HWDisplayId> mInternalHwcDisplayId;
+    std::optional<hal::HWDisplayId> mExternalHwcDisplayId;
     bool mHasMultiDisplaySupport = false;
 
     std::unordered_set<DisplayId> mFreeVirtualDisplayIds;
diff --git a/services/surfaceflinger/DisplayHardware/Hal.h b/services/surfaceflinger/DisplayHardware/Hal.h
new file mode 100644
index 0000000..66ee425
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/Hal.h
@@ -0,0 +1,168 @@
+/*
+ * 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/hardware/graphics/common/1.1/types.h>
+#include <android/hardware/graphics/composer/2.4/IComposer.h>
+#include <android/hardware/graphics/composer/2.4/IComposerClient.h>
+
+#define ERROR_HAS_CHANGES 5
+
+namespace android {
+namespace hardware::graphics::composer::hal {
+
+namespace types = android::hardware::graphics::common;
+namespace V2_1 = android::hardware::graphics::composer::V2_1;
+namespace V2_2 = android::hardware::graphics::composer::V2_2;
+namespace V2_3 = android::hardware::graphics::composer::V2_3;
+namespace V2_4 = android::hardware::graphics::composer::V2_4;
+
+using types::V1_0::ColorTransform;
+using types::V1_0::Transform;
+using types::V1_1::RenderIntent;
+using types::V1_2::ColorMode;
+using types::V1_2::Dataspace;
+using types::V1_2::Hdr;
+using types::V1_2::PixelFormat;
+
+using V2_1::Error;
+using V2_4::IComposer;
+using V2_4::IComposerCallback;
+using V2_4::IComposerClient;
+using V2_4::VsyncPeriodChangeTimeline;
+using V2_4::VsyncPeriodNanos;
+
+using Attribute = IComposerClient::Attribute;
+using BlendMode = IComposerClient::BlendMode;
+using Color = IComposerClient::Color;
+using Composition = IComposerClient::Composition;
+using Connection = IComposerCallback::Connection;
+using ContentType = IComposerClient::ContentType;
+using Capability = IComposer::Capability;
+using DisplayCapability = IComposerClient::DisplayCapability;
+using DisplayRequest = IComposerClient::DisplayRequest;
+using DisplayType = IComposerClient::DisplayType;
+using HWConfigId = V2_1::Config;
+using HWDisplayId = V2_1::Display;
+using HWError = V2_1::Error;
+using HWLayerId = V2_1::Layer;
+using LayerGenericMetadataKey = IComposerClient::LayerGenericMetadataKey;
+using LayerRequest = IComposerClient::LayerRequest;
+using PerFrameMetadata = IComposerClient::PerFrameMetadata;
+using PerFrameMetadataKey = IComposerClient::PerFrameMetadataKey;
+using PerFrameMetadataBlob = IComposerClient::PerFrameMetadataBlob;
+using PowerMode = IComposerClient::PowerMode;
+using Vsync = IComposerClient::Vsync;
+using VsyncPeriodChangeConstraints = IComposerClient::VsyncPeriodChangeConstraints;
+
+} // namespace hardware::graphics::composer::hal
+
+inline bool hasChangesError(hardware::graphics::composer::hal::Error error) {
+    return ERROR_HAS_CHANGES == static_cast<int32_t>(error);
+}
+
+inline std::string to_string(hardware::graphics::composer::hal::Attribute attribute) {
+    switch (attribute) {
+        case hardware::graphics::composer::hal::Attribute::INVALID:
+            return "Invalid";
+        case hardware::graphics::composer::hal::Attribute::WIDTH:
+            return "Width";
+        case hardware::graphics::composer::hal::Attribute::HEIGHT:
+            return "Height";
+        case hardware::graphics::composer::hal::Attribute::VSYNC_PERIOD:
+            return "VsyncPeriod";
+        case hardware::graphics::composer::hal::Attribute::DPI_X:
+            return "DpiX";
+        case hardware::graphics::composer::hal::Attribute::DPI_Y:
+            return "DpiY";
+        default:
+            return "Unknown";
+    }
+}
+
+inline std::string to_string(hardware::graphics::composer::hal::Composition composition) {
+    switch (composition) {
+        case hardware::graphics::composer::hal::Composition::INVALID:
+            return "Invalid";
+        case hardware::graphics::composer::hal::Composition::CLIENT:
+            return "Client";
+        case hardware::graphics::composer::hal::Composition::DEVICE:
+            return "Device";
+        case hardware::graphics::composer::hal::Composition::SOLID_COLOR:
+            return "SolidColor";
+        case hardware::graphics::composer::hal::Composition::CURSOR:
+            return "Cursor";
+        case hardware::graphics::composer::hal::Composition::SIDEBAND:
+            return "Sideband";
+        default:
+            return "Unknown";
+    }
+}
+
+inline std::string to_string(hardware::graphics::composer::hal::V2_4::Error error) {
+    // 5 is reserved for historical reason, during validation 5 means has changes.
+    if (ERROR_HAS_CHANGES == static_cast<int32_t>(error)) {
+        return "HasChanges";
+    }
+    switch (error) {
+        case hardware::graphics::composer::hal::V2_4::Error::NONE:
+            return "None";
+        case hardware::graphics::composer::hal::V2_4::Error::BAD_CONFIG:
+            return "BadConfig";
+        case hardware::graphics::composer::hal::V2_4::Error::BAD_DISPLAY:
+            return "BadDisplay";
+        case hardware::graphics::composer::hal::V2_4::Error::BAD_LAYER:
+            return "BadLayer";
+        case hardware::graphics::composer::hal::V2_4::Error::BAD_PARAMETER:
+            return "BadParameter";
+        case hardware::graphics::composer::hal::V2_4::Error::NO_RESOURCES:
+            return "NoResources";
+        case hardware::graphics::composer::hal::V2_4::Error::NOT_VALIDATED:
+            return "NotValidated";
+        case hardware::graphics::composer::hal::V2_4::Error::UNSUPPORTED:
+            return "Unsupported";
+        case hardware::graphics::composer::hal::V2_4::Error::SEAMLESS_NOT_ALLOWED:
+            return "SeamlessNotAllowed";
+        case hardware::graphics::composer::hal::V2_4::Error::SEAMLESS_NOT_POSSIBLE:
+            return "SeamlessNotPossible";
+        default:
+            return "Unknown";
+    }
+}
+
+inline std::string to_string(hardware::graphics::composer::hal::Error error) {
+    return to_string(static_cast<hardware::graphics::composer::hal::V2_4::Error>(error));
+}
+
+inline std::string to_string(hardware::graphics::composer::hal::PowerMode mode) {
+    switch (mode) {
+        case hardware::graphics::composer::hal::PowerMode::OFF:
+            return "Off";
+        case hardware::graphics::composer::hal::PowerMode::DOZE:
+            return "Doze";
+        case hardware::graphics::composer::hal::PowerMode::ON:
+            return "On";
+        case hardware::graphics::composer::hal::PowerMode::DOZE_SUSPEND:
+            return "DozeSuspend";
+        case hardware::graphics::composer::hal::PowerMode::ON_SUSPEND:
+            return "OnSuspend";
+        default:
+            return "Unknown";
+    }
+}
+
+} // namespace android
diff --git a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
index 4a90acb..34e63e7 100644
--- a/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
+++ b/services/surfaceflinger/DisplayHardware/PowerAdvisor.h
@@ -16,12 +16,6 @@
 
 #pragma once
 
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
 #include <atomic>
 #include <unordered_set>
 
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 5039761..8452957 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -220,9 +220,6 @@
     }
 
     mFlinger->markLayerPendingRemovalLocked(this);
-    if (hasInput()) {
-        mFlinger->dirtyInput();
-    }
 }
 
 void Layer::onRemovedFromCurrentState() {
@@ -998,8 +995,6 @@
     mPendingStatesSnapshot = mPendingStates;
     mCurrentState.callbackHandles = {};
 
-    maybeDirtyInput();
-
     return flags;
 }
 
@@ -1384,6 +1379,9 @@
         return false;
     }
 
+    // Activate the layer in Scheduler's LayerHistory
+    mFlinger->mScheduler->recordLayerHistory(this, systemTime());
+
     mCurrentState.sequence++;
     mCurrentState.frameRate = frameRate;
     mCurrentState.modified = true;
@@ -2545,32 +2543,6 @@
     }
 }
 
-bool Layer::maybeDirtyInput() {
-    // No sense redirtying input.
-    if (mFlinger->inputDirty()) return true;
-
-    if (hasInput()) {
-        mFlinger->dirtyInput();
-        return true;
-    }
-
-    // If a child or relative dirties the input, no sense continuing to traverse
-    // so we return early and halt the recursion. We traverse ourselves instead
-    // of using traverse() so we can implement this early halt.
-    for (const sp<Layer>& child : mDrawingChildren) {
-        if (child->maybeDirtyInput()) {
-            return true;
-        }
-    }
-    for (const wp<Layer>& weakRelative : mDrawingState.zOrderRelatives) {
-        sp<Layer> relative = weakRelative.promote();
-        if (relative && relative->maybeDirtyInput()) {
-            return true;
-        }
-    }
-    return false;
-}
-
 // ---------------------------------------------------------------------------
 
 }; // namespace android
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 92ac015..6636b5e 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -1015,10 +1015,6 @@
     // Window types from WindowManager.LayoutParams
     const int mWindowType;
 
-    // Called when mDrawingState has changed. If we or one of our children/relatives hasInput()
-    // then we will dirty the setInputWindows cache.
-    bool maybeDirtyInput();
-
 private:
     /**
      * Returns an unsorted vector of all layers that are part of this tree.
diff --git a/services/surfaceflinger/RefreshRateOverlay.cpp b/services/surfaceflinger/RefreshRateOverlay.cpp
index 0a0f2f1..2e7fbc1 100644
--- a/services/surfaceflinger/RefreshRateOverlay.cpp
+++ b/services/surfaceflinger/RefreshRateOverlay.cpp
@@ -116,9 +116,13 @@
 
     sp<GraphicBuffer> buffer =
             new GraphicBuffer(BUFFER_WIDTH, BUFFER_HEIGHT, HAL_PIXEL_FORMAT_RGBA_8888, 1,
-                              GRALLOC_USAGE_SW_WRITE_RARELY, "RefreshRateOverlayBuffer");
+                              GRALLOC_USAGE_SW_WRITE_RARELY | GRALLOC_USAGE_HW_COMPOSER |
+                                      GRALLOC_USAGE_HW_TEXTURE,
+                              "RefreshRateOverlayBuffer");
     uint8_t* pixels;
     buffer->lock(GRALLOC_USAGE_SW_WRITE_RARELY, reinterpret_cast<void**>(&pixels));
+    // Clear buffer content
+    drawRect(Rect(BUFFER_WIDTH, BUFFER_HEIGHT), half4(0), buffer, pixels);
     int left = 0;
     if (hundreds != 0) {
         drawDigit(hundreds, left, color, buffer, pixels);
diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp
index 68cd84f..27353d8 100644
--- a/services/surfaceflinger/RegionSamplingThread.cpp
+++ b/services/surfaceflinger/RegionSamplingThread.cpp
@@ -130,7 +130,7 @@
         mVsyncListening = false;
     }
 
-    void onDispSyncEvent(nsecs_t /* when */) final {
+    void onDispSyncEvent(nsecs_t /*when*/, nsecs_t /*expectedVSyncTimestamp*/) final {
         std::unique_lock<decltype(mMutex)> lock(mMutex);
 
         if (mPhaseIntervalSetting == Phase::ZERO) {
@@ -199,13 +199,8 @@
     }
 }
 
-void RegionSamplingThread::addListener(const Rect& samplingArea, const sp<IBinder>& stopLayerHandle,
+void RegionSamplingThread::addListener(const Rect& samplingArea, const wp<Layer>& stopLayer,
                                        const sp<IRegionSamplingListener>& listener) {
-    wp<Layer> stopLayer;
-    if (stopLayerHandle != nullptr && stopLayerHandle->localBinder() != nullptr) {
-        stopLayer = static_cast<Layer::Handle*>(stopLayerHandle.get())->owner;
-    }
-
     sp<IBinder> asBinder = IInterface::asBinder(listener);
     asBinder->linkToDeath(this);
     std::lock_guard lock(mSamplingMutex);
@@ -430,7 +425,8 @@
     }
 
     bool ignored;
-    mFlinger.captureScreenCommon(renderArea, traverseLayers, buffer, false, ignored);
+    mFlinger.captureScreenCommon(renderArea, traverseLayers, buffer, false /* identityTransform */,
+                                 true /* regionSampling */, ignored);
 
     std::vector<Descriptor> activeDescriptors;
     for (const auto& descriptor : descriptors) {
diff --git a/services/surfaceflinger/RegionSamplingThread.h b/services/surfaceflinger/RegionSamplingThread.h
index 99c07c2..b9b7a3c 100644
--- a/services/surfaceflinger/RegionSamplingThread.h
+++ b/services/surfaceflinger/RegionSamplingThread.h
@@ -69,7 +69,7 @@
 
     // Add a listener to receive luma notifications. The luma reported via listener will
     // report the median luma for the layers under the stopLayerHandle, in the samplingArea region.
-    void addListener(const Rect& samplingArea, const sp<IBinder>& stopLayerHandle,
+    void addListener(const Rect& samplingArea, const wp<Layer>& stopLayer,
                      const sp<IRegionSamplingListener>& listener);
     // Remove the listener to stop receiving median luma notifications.
     void removeListener(const sp<IRegionSamplingListener>& listener);
diff --git a/services/surfaceflinger/Scheduler/DispSync.cpp b/services/surfaceflinger/Scheduler/DispSync.cpp
index 809a0e5..ff91bf7 100644
--- a/services/surfaceflinger/Scheduler/DispSync.cpp
+++ b/services/surfaceflinger/Scheduler/DispSync.cpp
@@ -200,7 +200,8 @@
                     }
                 }
 
-                callbackInvocations = gatherCallbackInvocationsLocked(now);
+                callbackInvocations =
+                        gatherCallbackInvocationsLocked(now, computeNextRefreshLocked(0, now));
             }
 
             if (callbackInvocations.size() > 0) {
@@ -303,6 +304,11 @@
         return BAD_VALUE;
     }
 
+    nsecs_t computeNextRefresh(int periodOffset, nsecs_t now) const {
+        Mutex::Autolock lock(mMutex);
+        return computeNextRefreshLocked(periodOffset, now);
+    }
+
 private:
     struct EventListener {
         const char* mName;
@@ -315,6 +321,7 @@
     struct CallbackInvocation {
         DispSync::Callback* mCallback;
         nsecs_t mEventTime;
+        nsecs_t mExpectedVSyncTime;
     };
 
     nsecs_t computeNextEventTimeLocked(nsecs_t now) {
@@ -340,7 +347,8 @@
         return duration < (3 * mPeriod) / 5;
     }
 
-    std::vector<CallbackInvocation> gatherCallbackInvocationsLocked(nsecs_t now) {
+    std::vector<CallbackInvocation> gatherCallbackInvocationsLocked(nsecs_t now,
+                                                                    nsecs_t expectedVSyncTime) {
         if (mTraceDetailedInfo) ATRACE_CALL();
         ALOGV("[%s] gatherCallbackInvocationsLocked @ %" PRId64, mName, ns2us(now));
 
@@ -361,6 +369,10 @@
                 CallbackInvocation ci;
                 ci.mCallback = eventListener.mCallback;
                 ci.mEventTime = t;
+                ci.mExpectedVSyncTime = expectedVSyncTime;
+                if (eventListener.mPhase < 0) {
+                    ci.mExpectedVSyncTime += mPeriod;
+                }
                 ALOGV("[%s] [%s] Preparing to fire, latency: %" PRId64, mName, eventListener.mName,
                       t - eventListener.mLastEventTime);
                 callbackInvocations.push_back(ci);
@@ -426,10 +438,19 @@
     void fireCallbackInvocations(const std::vector<CallbackInvocation>& callbacks) {
         if (mTraceDetailedInfo) ATRACE_CALL();
         for (size_t i = 0; i < callbacks.size(); i++) {
-            callbacks[i].mCallback->onDispSyncEvent(callbacks[i].mEventTime);
+            callbacks[i].mCallback->onDispSyncEvent(callbacks[i].mEventTime,
+                                                    callbacks[i].mExpectedVSyncTime);
         }
     }
 
+    nsecs_t computeNextRefreshLocked(int periodOffset, nsecs_t now) const {
+        nsecs_t phase = mReferenceTime + mPhase;
+        if (mPeriod == 0) {
+            return 0;
+        }
+        return (((now - phase) / mPeriod) + periodOffset + 1) * mPeriod + phase;
+    }
+
     const char* const mName;
 
     bool mStop;
@@ -444,7 +465,7 @@
 
     std::vector<EventListener> mEventListeners;
 
-    Mutex mMutex;
+    mutable Mutex mMutex;
     Condition mCond;
 
     // Flag to turn on logging in systrace.
@@ -458,7 +479,7 @@
 public:
     ZeroPhaseTracer() : mParity("ZERO_PHASE_VSYNC", false) {}
 
-    virtual void onDispSyncEvent(nsecs_t /*when*/) {
+    virtual void onDispSyncEvent(nsecs_t /*when*/, nsecs_t /*expectedVSyncTimestamp*/) {
         mParity = !mParity;
     }
 
@@ -768,9 +789,8 @@
     }
 }
 
-nsecs_t DispSync::computeNextRefresh(int periodOffset) const {
+nsecs_t DispSync::computeNextRefresh(int periodOffset, nsecs_t now) const {
     Mutex::Autolock lock(mMutex);
-    nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
     nsecs_t phase = mReferenceTime + mPhase;
     if (mPeriod == 0) {
         return 0;
@@ -837,7 +857,7 @@
     StringAppendF(&result, "current monotonic time: %" PRId64 "\n", now);
 }
 
-nsecs_t DispSync::expectedPresentTime() {
+nsecs_t DispSync::expectedPresentTime(nsecs_t now) {
     // The HWC doesn't currently have a way to report additional latency.
     // Assume that whatever we submit now will appear right after the flip.
     // For a smart panel this might be 1.  This is expressed in frames,
@@ -846,7 +866,7 @@
     const uint32_t hwcLatency = 0;
 
     // Ask DispSync when the next refresh will be (CLOCK_MONOTONIC).
-    return computeNextRefresh(hwcLatency);
+    return mThread->computeNextRefresh(hwcLatency, now);
 }
 
 } // namespace impl
diff --git a/services/surfaceflinger/Scheduler/DispSync.h b/services/surfaceflinger/Scheduler/DispSync.h
index 2d9afc9..832f08e 100644
--- a/services/surfaceflinger/Scheduler/DispSync.h
+++ b/services/surfaceflinger/Scheduler/DispSync.h
@@ -36,7 +36,7 @@
     public:
         Callback() = default;
         virtual ~Callback();
-        virtual void onDispSyncEvent(nsecs_t when) = 0;
+        virtual void onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) = 0;
 
     protected:
         Callback(Callback const&) = delete;
@@ -58,9 +58,9 @@
                                       nsecs_t lastCallbackTime) = 0;
     virtual status_t removeEventListener(Callback* callback, nsecs_t* outLastCallback) = 0;
     virtual status_t changePhaseOffset(Callback* callback, nsecs_t phase) = 0;
-    virtual nsecs_t computeNextRefresh(int periodOffset) const = 0;
+    virtual nsecs_t computeNextRefresh(int periodOffset, nsecs_t now) const = 0;
     virtual void setIgnorePresentFences(bool ignore) = 0;
-    virtual nsecs_t expectedPresentTime() = 0;
+    virtual nsecs_t expectedPresentTime(nsecs_t now) = 0;
 
     virtual void dump(std::string& result) const = 0;
 
@@ -167,7 +167,7 @@
     // The periodOffset value can be used to move forward or backward; an
     // offset of zero is the next refresh, -1 is the previous refresh, 1 is
     // the refresh after next. etc.
-    nsecs_t computeNextRefresh(int periodOffset) const override;
+    nsecs_t computeNextRefresh(int periodOffset, nsecs_t now) const override;
 
     // In certain situations the present fences aren't a good indicator of vsync
     // time, e.g. when vr flinger is active, or simply aren't available,
@@ -178,7 +178,7 @@
     void setIgnorePresentFences(bool ignore) override;
 
     // Determine the expected present time when a buffer acquired now will be displayed.
-    nsecs_t expectedPresentTime();
+    nsecs_t expectedPresentTime(nsecs_t now);
 
     // dump appends human-readable debug info to the result string.
     void dump(std::string& result) const override;
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.cpp b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
index 4e3f85f..8752b66 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.cpp
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.cpp
@@ -92,7 +92,7 @@
     }
 }
 
-void DispSyncSource::onDispSyncEvent(nsecs_t when) {
+void DispSyncSource::onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) {
     VSyncSource::Callback* callback;
     {
         std::lock_guard lock(mCallbackMutex);
@@ -104,7 +104,7 @@
     }
 
     if (callback != nullptr) {
-        callback->onVSyncEvent(when);
+        callback->onVSyncEvent(when, expectedVSyncTimestamp);
     }
 }
 
diff --git a/services/surfaceflinger/Scheduler/DispSyncSource.h b/services/surfaceflinger/Scheduler/DispSyncSource.h
index f278712..2aee3f6 100644
--- a/services/surfaceflinger/Scheduler/DispSyncSource.h
+++ b/services/surfaceflinger/Scheduler/DispSyncSource.h
@@ -40,7 +40,7 @@
 
 private:
     // The following method is the implementation of the DispSync::Callback.
-    virtual void onDispSyncEvent(nsecs_t when);
+    void onDispSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) override;
 
     const char* const mName;
     TracedOrdinal<int> mValue;
diff --git a/services/surfaceflinger/Scheduler/EventThread.cpp b/services/surfaceflinger/Scheduler/EventThread.cpp
index 8347650..5dedb6a 100644
--- a/services/surfaceflinger/Scheduler/EventThread.cpp
+++ b/services/surfaceflinger/Scheduler/EventThread.cpp
@@ -79,8 +79,9 @@
                                 event.hotplug.connected ? "connected" : "disconnected");
         case DisplayEventReceiver::DISPLAY_EVENT_VSYNC:
             return StringPrintf("VSync{displayId=%" ANDROID_PHYSICAL_DISPLAY_ID_FORMAT
-                                ", count=%u}",
-                                event.header.displayId, event.vsync.count);
+                                ", count=%u, expectedVSyncTimestamp=%" PRId64 "}",
+                                event.header.displayId, event.vsync.count,
+                                event.vsync.expectedVSyncTimestamp);
         case DisplayEventReceiver::DISPLAY_EVENT_CONFIG_CHANGED:
             return StringPrintf("ConfigChanged{displayId=%" ANDROID_PHYSICAL_DISPLAY_ID_FORMAT
                                 ", configId=%u}",
@@ -99,10 +100,11 @@
 }
 
 DisplayEventReceiver::Event makeVSync(PhysicalDisplayId displayId, nsecs_t timestamp,
-                                      uint32_t count) {
+                                      uint32_t count, nsecs_t expectedVSyncTimestamp) {
     DisplayEventReceiver::Event event;
     event.header = {DisplayEventReceiver::DISPLAY_EVENT_VSYNC, displayId, timestamp};
     event.vsync.count = count;
+    event.vsync.expectedVSyncTimestamp = expectedVSyncTimestamp;
     return event;
 }
 
@@ -312,11 +314,12 @@
     mCondition.notify_all();
 }
 
-void EventThread::onVSyncEvent(nsecs_t timestamp) {
+void EventThread::onVSyncEvent(nsecs_t timestamp, nsecs_t expectedVSyncTimestamp) {
     std::lock_guard<std::mutex> lock(mMutex);
 
     LOG_FATAL_IF(!mVSyncState);
-    mPendingEvents.push_back(makeVSync(mVSyncState->displayId, timestamp, ++mVSyncState->count));
+    mPendingEvents.push_back(makeVSync(mVSyncState->displayId, timestamp, ++mVSyncState->count,
+                                       expectedVSyncTimestamp));
     mCondition.notify_all();
 }
 
@@ -423,7 +426,8 @@
         } else {
             // Generate a fake VSYNC after a long timeout in case the driver stalls. When the
             // display is off, keep feeding clients at 60 Hz.
-            const auto timeout = mState == State::SyntheticVSync ? 16ms : 1000ms;
+            const std::chrono::nanoseconds timeout =
+                    mState == State::SyntheticVSync ? 16ms : 1000ms;
             if (mCondition.wait_for(lock, timeout) == std::cv_status::timeout) {
                 if (mState == State::VSync) {
                     ALOGW("Faking VSYNC due to driver stall for thread %s", mThreadName);
@@ -439,9 +443,10 @@
                 }
 
                 LOG_FATAL_IF(!mVSyncState);
-                mPendingEvents.push_back(makeVSync(mVSyncState->displayId,
-                                                   systemTime(SYSTEM_TIME_MONOTONIC),
-                                                   ++mVSyncState->count));
+                const auto now = systemTime(SYSTEM_TIME_MONOTONIC);
+                const auto expectedVSyncTime = now + timeout.count();
+                mPendingEvents.push_back(makeVSync(mVSyncState->displayId, now,
+                                                   ++mVSyncState->count, expectedVSyncTime));
             }
         }
     }
diff --git a/services/surfaceflinger/Scheduler/EventThread.h b/services/surfaceflinger/Scheduler/EventThread.h
index 98b1876..9e7086e 100644
--- a/services/surfaceflinger/Scheduler/EventThread.h
+++ b/services/surfaceflinger/Scheduler/EventThread.h
@@ -57,7 +57,7 @@
     class Callback {
     public:
         virtual ~Callback() {}
-        virtual void onVSyncEvent(nsecs_t when) = 0;
+        virtual void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) = 0;
     };
 
     virtual ~VSyncSource() {}
@@ -189,7 +189,7 @@
             REQUIRES(mMutex);
 
     // Implements VSyncSource::Callback
-    void onVSyncEvent(nsecs_t timestamp) override;
+    void onVSyncEvent(nsecs_t timestamp, nsecs_t expectedVSyncTimestamp) override;
 
     const std::unique_ptr<VSyncSource> mVSyncSource GUARDED_BY(mMutex);
 
diff --git a/services/surfaceflinger/Scheduler/InjectVSyncSource.h b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
index 31da588..975c9db 100644
--- a/services/surfaceflinger/Scheduler/InjectVSyncSource.h
+++ b/services/surfaceflinger/Scheduler/InjectVSyncSource.h
@@ -35,10 +35,10 @@
         mCallback = callback;
     }
 
-    void onInjectSyncEvent(nsecs_t when) {
+    void onInjectSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) {
         std::lock_guard<std::mutex> lock(mCallbackMutex);
         if (mCallback) {
-            mCallback->onVSyncEvent(when);
+            mCallback->onVSyncEvent(when, expectedVSyncTimestamp);
         }
     }
 
diff --git a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
index 8b08592..b067466 100644
--- a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
@@ -40,9 +40,11 @@
 namespace {
 
 bool isLayerActive(const Layer& layer, const LayerInfoV2& info, nsecs_t threshold) {
+    // Layers with an explicit vote are always kept active
     if (layer.getFrameRateForLayerTree().rate > 0) {
-        return layer.isVisible();
+        return true;
     }
+
     return layer.isVisible() && info.getLastUpdatedTime() >= threshold;
 }
 
@@ -127,29 +129,24 @@
         //  an additional parameter.
         ALOGV("Layer has priority: %d", strong->getFrameRateSelectionPriority());
 
-        const bool recent = info->isRecentlyActive(now);
-        if (recent) {
-            const auto [type, refreshRate] = info->getRefreshRate(now);
-            // Skip NoVote layer as those don't have any requirements
-            if (type == LayerHistory::LayerVoteType::NoVote) {
-                continue;
-            }
+        const auto [type, refreshRate] = info->getRefreshRate(now);
+        // Skip NoVote layer as those don't have any requirements
+        if (type == LayerHistory::LayerVoteType::NoVote) {
+            continue;
+        }
 
-            // Compute the layer's position on the screen
-            const Rect bounds = Rect(strong->getBounds());
-            const ui::Transform transform = strong->getTransform();
-            constexpr bool roundOutwards = true;
-            Rect transformed = transform.transform(bounds, roundOutwards);
+        // Compute the layer's position on the screen
+        const Rect bounds = Rect(strong->getBounds());
+        const ui::Transform transform = strong->getTransform();
+        constexpr bool roundOutwards = true;
+        Rect transformed = transform.transform(bounds, roundOutwards);
 
-            const float layerArea = transformed.getWidth() * transformed.getHeight();
-            float weight = mDisplayArea ? layerArea / mDisplayArea : 0.0f;
-            summary.push_back({strong->getName(), type, refreshRate, weight});
+        const float layerArea = transformed.getWidth() * transformed.getHeight();
+        float weight = mDisplayArea ? layerArea / mDisplayArea : 0.0f;
+        summary.push_back({strong->getName(), type, refreshRate, weight});
 
-            if (CC_UNLIKELY(mTraceEnabled)) {
-                trace(layer, type, static_cast<int>(std::round(refreshRate)));
-            }
-        } else if (CC_UNLIKELY(mTraceEnabled)) {
-            trace(layer, LayerHistory::LayerVoteType::NoVote, 0);
+        if (CC_UNLIKELY(mTraceEnabled)) {
+            trace(layer, type, static_cast<int>(std::round(refreshRate)));
         }
     }
 
@@ -177,7 +174,7 @@
                         return LayerVoteType::NoVote;
                 }
             }();
-            if (frameRate.rate > 0 || voteType == LayerVoteType::NoVote) {
+            if (layer->isVisible() && (frameRate.rate > 0 || voteType == LayerVoteType::NoVote)) {
                 info->setLayerVote(voteType, frameRate.rate);
             } else {
                 info->resetLayerVote();
diff --git a/services/surfaceflinger/Scheduler/LayerInfoV2.cpp b/services/surfaceflinger/Scheduler/LayerInfoV2.cpp
index b4365bf..bf1fb88 100644
--- a/services/surfaceflinger/Scheduler/LayerInfoV2.cpp
+++ b/services/surfaceflinger/Scheduler/LayerInfoV2.cpp
@@ -45,15 +45,6 @@
     }
 }
 
-// Returns whether the earliest present time is within the active threshold.
-bool LayerInfoV2::isRecentlyActive(nsecs_t now) const {
-    if (mFrameTimes.empty()) {
-        return false;
-    }
-
-    return mFrameTimes.back().queueTime >= getActiveLayerThreshold(now);
-}
-
 bool LayerInfoV2::isFrameTimeValid(const FrameTimeData& frameTime) const {
     return frameTime.queueTime >= std::chrono::duration_cast<std::chrono::nanoseconds>(
                                           mFrameTimeValidSince.time_since_epoch())
diff --git a/services/surfaceflinger/Scheduler/LayerInfoV2.h b/services/surfaceflinger/Scheduler/LayerInfoV2.h
index 25fb95a..ad91f18 100644
--- a/services/surfaceflinger/Scheduler/LayerInfoV2.h
+++ b/services/surfaceflinger/Scheduler/LayerInfoV2.h
@@ -64,8 +64,6 @@
     // updated time, the updated time is the present time.
     void setLastPresentTime(nsecs_t lastPresentTime, nsecs_t now);
 
-    bool isRecentlyActive(nsecs_t now) const;
-
     // Sets an explicit layer vote. This usually comes directly from the application via
     // ANativeWindow_setFrameRate API
     void setLayerVote(LayerHistory::LayerVoteType type, float fps) { mLayerVote = {type, fps}; }
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.cpp b/services/surfaceflinger/Scheduler/MessageQueue.cpp
index 005d157..9d6e1d8 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.cpp
+++ b/services/surfaceflinger/Scheduler/MessageQueue.cpp
@@ -62,8 +62,9 @@
     }
 }
 
-void MessageQueue::Handler::dispatchInvalidate() {
+void MessageQueue::Handler::dispatchInvalidate(nsecs_t expectedVSyncTimestamp) {
     if ((android_atomic_or(eventMaskInvalidate, &mEventMask) & eventMaskInvalidate) == 0) {
+        mExpectedVSyncTime = expectedVSyncTimestamp;
         mQueue.mLooper->sendMessage(this, Message(MessageQueue::INVALIDATE));
     }
 }
@@ -72,11 +73,11 @@
     switch (message.what) {
         case INVALIDATE:
             android_atomic_and(~eventMaskInvalidate, &mEventMask);
-            mQueue.mFlinger->onMessageReceived(message.what);
+            mQueue.mFlinger->onMessageReceived(message.what, mExpectedVSyncTime);
             break;
         case REFRESH:
             android_atomic_and(~eventMaskRefresh, &mEventMask);
-            mQueue.mFlinger->onMessageReceived(message.what);
+            mQueue.mFlinger->onMessageReceived(message.what, mExpectedVSyncTime);
             break;
     }
 }
@@ -151,7 +152,7 @@
     while ((n = DisplayEventReceiver::getEvents(&mEventTube, buffer, 8)) > 0) {
         for (int i = 0; i < n; i++) {
             if (buffer[i].header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC) {
-                mHandler->dispatchInvalidate();
+                mHandler->dispatchInvalidate(buffer[i].vsync.expectedVSyncTimestamp);
                 break;
             }
         }
diff --git a/services/surfaceflinger/Scheduler/MessageQueue.h b/services/surfaceflinger/Scheduler/MessageQueue.h
index fcfc4aa..ebc4315 100644
--- a/services/surfaceflinger/Scheduler/MessageQueue.h
+++ b/services/surfaceflinger/Scheduler/MessageQueue.h
@@ -101,12 +101,13 @@
         enum { eventMaskInvalidate = 0x1, eventMaskRefresh = 0x2, eventMaskTransaction = 0x4 };
         MessageQueue& mQueue;
         int32_t mEventMask;
+        std::atomic<nsecs_t> mExpectedVSyncTime;
 
     public:
         explicit Handler(MessageQueue& queue) : mQueue(queue), mEventMask(0) {}
         virtual void handleMessage(const Message& message);
         void dispatchRefresh();
-        void dispatchInvalidate();
+        void dispatchInvalidate(nsecs_t expectedVSyncTimestamp);
     };
 
     friend class Handler;
diff --git a/services/surfaceflinger/Scheduler/RefreshRateStats.h b/services/surfaceflinger/Scheduler/RefreshRateStats.h
index 66d4a03..d9e7b37 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateStats.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateStats.h
@@ -41,14 +41,15 @@
 
 public:
     RefreshRateStats(const RefreshRateConfigs& refreshRateConfigs, TimeStats& timeStats,
-                     HwcConfigIndexType currentConfigId, int currentPowerMode)
+                     HwcConfigIndexType currentConfigId,
+                     android::hardware::graphics::composer::hal::PowerMode currentPowerMode)
           : mRefreshRateConfigs(refreshRateConfigs),
             mTimeStats(timeStats),
             mCurrentConfigMode(currentConfigId),
             mCurrentPowerMode(currentPowerMode) {}
 
     // Sets power mode.
-    void setPowerMode(int mode) {
+    void setPowerMode(android::hardware::graphics::composer::hal::PowerMode mode) {
         if (mCurrentPowerMode == mode) {
             return;
         }
@@ -108,7 +109,7 @@
         mPreviousRecordedTime = currentTime;
 
         uint32_t fps = 0;
-        if (mCurrentPowerMode == HWC_POWER_MODE_NORMAL) {
+        if (mCurrentPowerMode == android::hardware::graphics::composer::hal::PowerMode::ON) {
             // Normal power mode is counted under different config modes.
             if (mConfigModesTotalTime.find(mCurrentConfigMode) == mConfigModesTotalTime.end()) {
                 mConfigModesTotalTime[mCurrentConfigMode] = 0;
@@ -140,7 +141,7 @@
     TimeStats& mTimeStats;
 
     HwcConfigIndexType mCurrentConfigMode;
-    int32_t mCurrentPowerMode;
+    android::hardware::graphics::composer::hal::PowerMode mCurrentPowerMode;
 
     std::unordered_map<HwcConfigIndexType /* configId */, int64_t /* duration in ms */>
             mConfigModesTotalTime;
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 9a9523f..86bb6eb 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -250,7 +250,7 @@
 }
 
 void Scheduler::getDisplayStatInfo(DisplayStatInfo* stats) {
-    stats->vsyncTime = mPrimaryDispSync->computeNextRefresh(0);
+    stats->vsyncTime = mPrimaryDispSync->computeNextRefresh(0, systemTime());
     stats->vsyncPeriod = mPrimaryDispSync->getPeriod();
 }
 
@@ -276,12 +276,12 @@
     return mInjectorConnectionHandle;
 }
 
-bool Scheduler::injectVSync(nsecs_t when) {
+bool Scheduler::injectVSync(nsecs_t when, nsecs_t expectedVSyncTime) {
     if (!mInjectVSyncs || !mVSyncInjector) {
         return false;
     }
 
-    mVSyncInjector->onInjectSyncEvent(when);
+    mVSyncInjector->onInjectSyncEvent(when, expectedVSyncTime);
     return true;
 }
 
@@ -378,8 +378,8 @@
     mPrimaryDispSync->setIgnorePresentFences(ignore);
 }
 
-nsecs_t Scheduler::getDispSyncExpectedPresentTime() {
-    return mPrimaryDispSync->expectedPresentTime();
+nsecs_t Scheduler::getDispSyncExpectedPresentTime(nsecs_t now) {
+    return mPrimaryDispSync->expectedPresentTime(now);
 }
 
 void Scheduler::registerLayer(Layer* layer) {
@@ -634,7 +634,7 @@
     return mFeatures.configId;
 }
 
-void Scheduler::onNewVsyncPeriodChangeTimeline(const HWC2::VsyncPeriodChangeTimeline& timeline) {
+void Scheduler::onNewVsyncPeriodChangeTimeline(const hal::VsyncPeriodChangeTimeline& timeline) {
     if (timeline.refreshRequired) {
         mSchedulerCallback.repaintEverythingForHWC();
     }
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 04cc96a..4a0280f 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -95,7 +95,7 @@
     ConnectionHandle enableVSyncInjection(bool enable);
 
     // Returns false if injection is disabled.
-    bool injectVSync(nsecs_t when);
+    bool injectVSync(nsecs_t when, nsecs_t expectedVSyncTime);
 
     void enableHardwareVsync();
     void disableHardwareVsync(bool makeUnavailable);
@@ -114,7 +114,7 @@
                          bool* periodFlushed);
     void addPresentFence(const std::shared_ptr<FenceTime>&);
     void setIgnorePresentFences(bool ignore);
-    nsecs_t getDispSyncExpectedPresentTime();
+    nsecs_t getDispSyncExpectedPresentTime(nsecs_t now);
 
     // Layers are registered on creation, and unregistered when the weak reference expires.
     void registerLayer(Layer*);
@@ -138,7 +138,7 @@
     std::optional<HwcConfigIndexType> getPreferredConfigId();
 
     // Notifies the scheduler about a refresh rate timeline change.
-    void onNewVsyncPeriodChangeTimeline(const HWC2::VsyncPeriodChangeTimeline& timeline);
+    void onNewVsyncPeriodChangeTimeline(const hal::VsyncPeriodChangeTimeline& timeline);
 
     // Notifies the scheduler when the display was refreshed
     void onDisplayRefreshed(nsecs_t timestamp);
@@ -242,7 +242,7 @@
     const scheduler::RefreshRateConfigs& mRefreshRateConfigs;
 
     std::mutex mVsyncTimelineLock;
-    std::optional<HWC2::VsyncPeriodChangeTimeline> mLastVsyncPeriodChangeTimeline
+    std::optional<hal::VsyncPeriodChangeTimeline> mLastVsyncPeriodChangeTimeline
             GUARDED_BY(mVsyncTimelineLock);
     static constexpr std::chrono::nanoseconds MAX_VSYNC_APPLIED_TIME = 200ms;
 
diff --git a/services/surfaceflinger/Scheduler/VSyncReactor.cpp b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
index 892ae62..5f0c9ce 100644
--- a/services/surfaceflinger/Scheduler/VSyncReactor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
@@ -128,7 +128,7 @@
             mLastCallTime = vsynctime;
         }
 
-        mCallback->onDispSyncEvent(wakeupTime);
+        mCallback->onDispSyncEvent(wakeupTime, vsynctime);
 
         {
             std::lock_guard<std::mutex> lk(mMutex);
@@ -221,14 +221,13 @@
     }
 }
 
-nsecs_t VSyncReactor::computeNextRefresh(int periodOffset) const {
-    auto const now = mClock->now();
+nsecs_t VSyncReactor::computeNextRefresh(int periodOffset, nsecs_t now) const {
     auto const currentPeriod = periodOffset ? mTracker->currentPeriod() : 0;
     return mTracker->nextAnticipatedVSyncTimeFrom(now + periodOffset * currentPeriod);
 }
 
-nsecs_t VSyncReactor::expectedPresentTime() {
-    return mTracker->nextAnticipatedVSyncTimeFrom(mClock->now());
+nsecs_t VSyncReactor::expectedPresentTime(nsecs_t now) {
+    return mTracker->nextAnticipatedVSyncTimeFrom(now);
 }
 
 void VSyncReactor::startPeriodTransition(nsecs_t newPeriod) {
diff --git a/services/surfaceflinger/Scheduler/VSyncReactor.h b/services/surfaceflinger/Scheduler/VSyncReactor.h
index 5ee29f8..31ddf5a 100644
--- a/services/surfaceflinger/Scheduler/VSyncReactor.h
+++ b/services/surfaceflinger/Scheduler/VSyncReactor.h
@@ -42,8 +42,8 @@
     bool addPresentFence(const std::shared_ptr<FenceTime>& fence) final;
     void setIgnorePresentFences(bool ignoration) final;
 
-    nsecs_t computeNextRefresh(int periodOffset) const final;
-    nsecs_t expectedPresentTime() final;
+    nsecs_t computeNextRefresh(int periodOffset, nsecs_t now) const final;
+    nsecs_t expectedPresentTime(nsecs_t now) final;
 
     void setPeriod(nsecs_t period) final;
     nsecs_t getPeriod() final;
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index adcccd2..3806343 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -140,6 +140,8 @@
 using ui::Hdr;
 using ui::RenderIntent;
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 namespace {
 
 #pragma clang diagnostic push
@@ -169,19 +171,22 @@
 
 #pragma clang diagnostic pop
 
-class ConditionalLock {
-public:
-    ConditionalLock(Mutex& mutex, bool lock) : mMutex(mutex), mLocked(lock) {
-        if (lock) {
-            mMutex.lock();
-        }
+template <typename Mutex>
+struct ConditionalLockGuard {
+    ConditionalLockGuard(Mutex& mutex, bool lock) : mutex(mutex), lock(lock) {
+        if (lock) mutex.lock();
     }
-    ~ConditionalLock() { if (mLocked) mMutex.unlock(); }
-private:
-    Mutex& mMutex;
-    bool mLocked;
+
+    ~ConditionalLockGuard() {
+        if (lock) mutex.unlock();
+    }
+
+    Mutex& mutex;
+    const bool lock;
 };
 
+using ConditionalLock = ConditionalLockGuard<Mutex>;
+
 // TODO(b/141333600): Consolidate with HWC2::Display::Config::Builder::getDefaultDensity.
 constexpr float FALLBACK_DENSITY = ACONFIGURATION_DENSITY_TV / 160.f;
 
@@ -466,17 +471,17 @@
 }
 
 void SurfaceFlinger::destroyDisplay(const sp<IBinder>& displayToken) {
-    Mutex::Autolock _l(mStateLock);
+    Mutex::Autolock lock(mStateLock);
 
-    ssize_t index = mCurrentState.displays.indexOfKey(displayToken);
+    const ssize_t index = mCurrentState.displays.indexOfKey(displayToken);
     if (index < 0) {
-        ALOGE("destroyDisplay: Invalid display token %p", displayToken.get());
+        ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
         return;
     }
 
     const DisplayDeviceState& state = mCurrentState.displays.valueAt(index);
-    if (!state.isVirtual()) {
-        ALOGE("destroyDisplay called for non-virtual display");
+    if (state.physical) {
+        ALOGE("%s: Invalid operation on physical display", __FUNCTION__);
         return;
     }
     mInterceptor->saveDisplayDeletion(state.sequenceId);
@@ -689,7 +694,7 @@
     // Inform native graphics APIs whether the present timestamp is supported:
 
     const bool presentFenceReliable =
-            !getHwComposer().hasCapability(HWC2::Capability::PresentFenceIsNotReliable);
+            !getHwComposer().hasCapability(hal::Capability::PRESENT_FENCE_IS_NOT_RELIABLE);
     mStartPropertySetThread = getFactory().createStartPropertySetThread(presentFenceReliable);
 
     if (mStartPropertySetThread->Start() != NO_ERROR) {
@@ -767,8 +772,7 @@
     };
     ConditionalLock _l(mStateLock,
             std::this_thread::get_id() != mMainThreadId);
-    if (!getHwComposer().hasCapability(
-            HWC2::Capability::PresentFenceIsNotReliable)) {
+    if (!getHwComposer().hasCapability(hal::Capability::PRESENT_FENCE_IS_NOT_RELIABLE)) {
         outSupported->push_back(FrameEvent::DISPLAY_PRESENT);
     }
     return NO_ERROR;
@@ -908,20 +912,29 @@
 }
 
 int SurfaceFlinger::getActiveConfig(const sp<IBinder>& displayToken) {
-    const auto display = getDisplayDevice(displayToken);
-    if (!display) {
-        ALOGE("getActiveConfig: Invalid display token %p", displayToken.get());
-        return BAD_VALUE;
+    int activeConfig;
+    bool isPrimary;
+
+    {
+        Mutex::Autolock lock(mStateLock);
+
+        if (const auto display = getDisplayDeviceLocked(displayToken)) {
+            activeConfig = display->getActiveConfig().value();
+            isPrimary = display->isPrimary();
+        } else {
+            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+            return NAME_NOT_FOUND;
+        }
     }
 
-    if (display->isPrimary()) {
+    if (isPrimary) {
         std::lock_guard<std::mutex> lock(mActiveConfigLock);
         if (mDesiredActiveConfigChanged) {
             return mDesiredActiveConfig.configId.value();
         }
     }
 
-    return display->getActiveConfig().value();
+    return activeConfig;
 }
 
 void SurfaceFlinger::setDesiredActiveConfig(const ActiveConfigInfo& info) {
@@ -972,17 +985,16 @@
         return BAD_VALUE;
     }
 
-    status_t result = NO_ERROR;
+    status_t result = NAME_NOT_FOUND;
 
     postMessageSync(new LambdaMessage([&]() {
         const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
             ALOGE("Attempt to set allowed display configs for invalid display token %p",
                   displayToken.get());
-            result = BAD_VALUE;
         } else if (display->isVirtual()) {
             ALOGW("Attempt to set allowed display configs for virtual display");
-            result = BAD_VALUE;
+            result = INVALID_OPERATION;
         } else {
             HwcConfigIndexType config(mode);
             const auto& refreshRate = mRefreshRateConfigs->getRefreshRateFromConfigId(config);
@@ -1044,64 +1056,55 @@
     mVSyncModulator->setPhaseOffsets(mPhaseConfiguration->getCurrentOffsets());
 }
 
-bool SurfaceFlinger::performSetActiveConfig() {
+void SurfaceFlinger::performSetActiveConfig() {
     ATRACE_CALL();
     ALOGV("performSetActiveConfig");
-    if (mCheckPendingFence) {
-        if (previousFramePending()) {
-            // fence has not signaled yet. wait for the next invalidate
-            mEventQueue->invalidate();
-            return true;
-        }
-
-        // We received the present fence from the HWC, so we assume it successfully updated
-        // the config, hence we update SF.
-        mCheckPendingFence = false;
-        setActiveConfigInternal();
-    }
-
     // Store the local variable to release the lock.
-    ActiveConfigInfo desiredActiveConfig;
-    {
+    const auto desiredActiveConfig = [&]() -> std::optional<ActiveConfigInfo> {
         std::lock_guard<std::mutex> lock(mActiveConfigLock);
-        if (!mDesiredActiveConfigChanged) {
-            return false;
+        if (mDesiredActiveConfigChanged) {
+            return mDesiredActiveConfig;
         }
-        desiredActiveConfig = mDesiredActiveConfig;
+        return std::nullopt;
+    }();
+
+    if (!desiredActiveConfig) {
+        // No desired active config pending to be applied
+        return;
     }
 
     auto& refreshRate =
-            mRefreshRateConfigs->getRefreshRateFromConfigId(desiredActiveConfig.configId);
+            mRefreshRateConfigs->getRefreshRateFromConfigId(desiredActiveConfig->configId);
     ALOGV("performSetActiveConfig changing active config to %d(%s)",
           refreshRate.getConfigId().value(), refreshRate.getName().c_str());
     const auto display = getDefaultDisplayDeviceLocked();
-    if (!display || display->getActiveConfig() == desiredActiveConfig.configId) {
+    if (!display || display->getActiveConfig() == desiredActiveConfig->configId) {
         // display is not valid or we are already in the requested mode
         // on both cases there is nothing left to do
         desiredActiveConfigChangeDone();
-        return false;
+        return;
     }
 
     // Desired active config was set, it is different than the config currently in use, however
     // allowed configs might have change by the time we process the refresh.
     // Make sure the desired config is still allowed
-    if (!isDisplayConfigAllowed(desiredActiveConfig.configId)) {
+    if (!isDisplayConfigAllowed(desiredActiveConfig->configId)) {
         desiredActiveConfigChangeDone();
-        return false;
+        return;
     }
 
-    mUpcomingActiveConfig = desiredActiveConfig;
+    mUpcomingActiveConfig = *desiredActiveConfig;
     const auto displayId = display->getId();
     LOG_ALWAYS_FATAL_IF(!displayId);
 
     ATRACE_INT("ActiveConfigFPS_HWC", refreshRate.getFps());
 
     // TODO(b/142753666) use constrains
-    HWC2::VsyncPeriodChangeConstraints constraints;
+    hal::VsyncPeriodChangeConstraints constraints;
     constraints.desiredTimeNanos = systemTime();
     constraints.seamlessRequired = false;
 
-    HWC2::VsyncPeriodChangeTimeline outTimeline;
+    hal::VsyncPeriodChangeTimeline outTimeline;
     auto status =
             getHwComposer().setActiveConfigWithConstraints(*displayId,
                                                            mUpcomingActiveConfig.configId.value(),
@@ -1110,13 +1113,12 @@
         // setActiveConfigWithConstraints may fail if a hotplug event is just about
         // to be sent. We just log the error in this case.
         ALOGW("setActiveConfigWithConstraints failed: %d", status);
-        return false;
+        return;
     }
 
     mScheduler->onNewVsyncPeriodChangeTimeline(outTimeline);
     // Scheduler will submit an empty frame to HWC if needed.
-    mCheckPendingFence = true;
-    return false;
+    mSetActiveConfigPending = true;
 }
 
 status_t SurfaceFlinger::getDisplayColorModes(const sp<IBinder>& displayToken,
@@ -1162,7 +1164,7 @@
 
     // Currently we only support this API for a single internal display.
     if (getInternalDisplayToken() != displayToken) {
-        return BAD_VALUE;
+        return NAME_NOT_FOUND;
     }
 
     memcpy(&primaries, &mInternalDisplayPrimaries, sizeof(ui::DisplayPrimaries));
@@ -1170,7 +1172,9 @@
 }
 
 ColorMode SurfaceFlinger::getActiveColorMode(const sp<IBinder>& displayToken) {
-    if (const auto display = getDisplayDevice(displayToken)) {
+    Mutex::Autolock lock(mStateLock);
+
+    if (const auto display = getDisplayDeviceLocked(displayToken)) {
         return display->getCompositionDisplay()->getState().colorMode;
     }
     return static_cast<ColorMode>(BAD_VALUE);
@@ -1186,7 +1190,7 @@
                   decodeColorMode(mode).c_str(), mode, displayToken.get());
             return;
         }
-        const auto display = getDisplayDevice(displayToken);
+        const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
             ALOGE("Attempt to set active color mode %s (%d) for invalid display token %p",
                   decodeColorMode(mode).c_str(), mode, displayToken.get());
@@ -1206,82 +1210,62 @@
 
 status_t SurfaceFlinger::getAutoLowLatencyModeSupport(const sp<IBinder>& displayToken,
                                                       bool* outSupport) const {
-    Mutex::Autolock _l(mStateLock);
-
     if (!displayToken) {
-        ALOGE("getAutoLowLatencyModeSupport() failed. Missing display token.");
         return BAD_VALUE;
     }
+
+    Mutex::Autolock lock(mStateLock);
+
     const auto displayId = getPhysicalDisplayIdLocked(displayToken);
     if (!displayId) {
-        ALOGE("getAutoLowLatencyModeSupport() failed. Display id for display token %p not found.",
-              displayToken.get());
         return NAME_NOT_FOUND;
     }
-    *outSupport = getHwComposer().hasDisplayCapability(*displayId,
-                                                       HWC2::DisplayCapability::AutoLowLatencyMode);
+    *outSupport =
+            getHwComposer().hasDisplayCapability(*displayId,
+                                                 hal::DisplayCapability::AUTO_LOW_LATENCY_MODE);
     return NO_ERROR;
 }
 
 void SurfaceFlinger::setAutoLowLatencyMode(const sp<IBinder>& displayToken, bool on) {
-    postMessageAsync(new LambdaMessage([=] { setAutoLowLatencyModeInternal(displayToken, on); }));
-}
-
-void SurfaceFlinger::setAutoLowLatencyModeInternal(const sp<IBinder>& displayToken, bool on) {
-    if (!displayToken) {
-        ALOGE("setAutoLowLatencyMode() failed. Missing display token.");
-        return;
-    }
-    const auto displayId = getPhysicalDisplayIdLocked(displayToken);
-    if (!displayId) {
-        ALOGE("setAutoLowLatencyMode() failed. Display id for display token %p not found.",
-              displayToken.get());
-        return;
-    }
-
-    getHwComposer().setAutoLowLatencyMode(*displayId, on);
+    postMessageAsync(new LambdaMessage([=] {
+        if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+            getHwComposer().setAutoLowLatencyMode(*displayId, on);
+        } else {
+            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+        }
+    }));
 }
 
 status_t SurfaceFlinger::getGameContentTypeSupport(const sp<IBinder>& displayToken,
                                                    bool* outSupport) const {
-    Mutex::Autolock _l(mStateLock);
-
     if (!displayToken) {
-        ALOGE("getGameContentTypeSupport() failed. Missing display token.");
         return BAD_VALUE;
     }
+
+    Mutex::Autolock lock(mStateLock);
+
     const auto displayId = getPhysicalDisplayIdLocked(displayToken);
     if (!displayId) {
-        ALOGE("getGameContentTypeSupport() failed. Display id for display token %p not found.",
-              displayToken.get());
         return NAME_NOT_FOUND;
     }
 
-    std::vector<HWC2::ContentType> outSupportedContentTypes;
-    getHwComposer().getSupportedContentTypes(*displayId, &outSupportedContentTypes);
-    *outSupport = std::find(outSupportedContentTypes.begin(), outSupportedContentTypes.end(),
-                            HWC2::ContentType::Game) != outSupportedContentTypes.end();
+    std::vector<hal::ContentType> types;
+    getHwComposer().getSupportedContentTypes(*displayId, &types);
+
+    *outSupport = std::any_of(types.begin(), types.end(),
+                              [](auto type) { return type == hal::ContentType::GAME; });
     return NO_ERROR;
 }
 
 void SurfaceFlinger::setGameContentType(const sp<IBinder>& displayToken, bool on) {
-    postMessageAsync(new LambdaMessage([=] { setGameContentTypeInternal(displayToken, on); }));
-}
-
-void SurfaceFlinger::setGameContentTypeInternal(const sp<IBinder>& displayToken, bool on) {
-    if (!displayToken) {
-        ALOGE("setGameContentType() failed. Missing display token.");
-        return;
-    }
-    const auto displayId = getPhysicalDisplayIdLocked(displayToken);
-    if (!displayId) {
-        ALOGE("setGameContentType() failed. Display id for display token %p not found.",
-              displayToken.get());
-        return;
-    }
-
-    const HWC2::ContentType type = on ? HWC2::ContentType::Game : HWC2::ContentType::None;
-    getHwComposer().setContentType(*displayId, type);
+    postMessageAsync(new LambdaMessage([=] {
+        if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+            const auto type = on ? hal::ContentType::GAME : hal::ContentType::NONE;
+            getHwComposer().setContentType(*displayId, type);
+        } else {
+            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+        }
+    }));
 }
 
 status_t SurfaceFlinger::clearAnimationFrameStats() {
@@ -1298,15 +1282,15 @@
 
 status_t SurfaceFlinger::getHdrCapabilities(const sp<IBinder>& displayToken,
                                             HdrCapabilities* outCapabilities) const {
-    Mutex::Autolock _l(mStateLock);
+    Mutex::Autolock lock(mStateLock);
 
     const auto display = getDisplayDeviceLocked(displayToken);
     if (!display) {
-        ALOGE("getHdrCapabilities: Invalid display token %p", displayToken.get());
-        return BAD_VALUE;
+        ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+        return NAME_NOT_FOUND;
     }
 
-    // At this point the DisplayDeivce should already be set up,
+    // At this point the DisplayDevice should already be set up,
     // meaning the luminance information is already queried from
     // hardware composer and stored properly.
     const HdrCapabilities& capabilities = display->getHdrCapabilities();
@@ -1349,39 +1333,46 @@
     if (!outFormat || !outDataspace || !outComponentMask) {
         return BAD_VALUE;
     }
-    const auto display = getDisplayDevice(displayToken);
-    if (!display || !display->getId()) {
-        ALOGE("getDisplayedContentSamplingAttributes: Bad display token: %p", display.get());
-        return BAD_VALUE;
+
+    Mutex::Autolock lock(mStateLock);
+
+    const auto displayId = getPhysicalDisplayIdLocked(displayToken);
+    if (!displayId) {
+        return NAME_NOT_FOUND;
     }
-    return getHwComposer().getDisplayedContentSamplingAttributes(*display->getId(), outFormat,
+
+    return getHwComposer().getDisplayedContentSamplingAttributes(*displayId, outFormat,
                                                                  outDataspace, outComponentMask);
 }
 
 status_t SurfaceFlinger::setDisplayContentSamplingEnabled(const sp<IBinder>& displayToken,
                                                           bool enable, uint8_t componentMask,
-                                                          uint64_t maxFrames) const {
-    const auto display = getDisplayDevice(displayToken);
-    if (!display || !display->getId()) {
-        ALOGE("setDisplayContentSamplingEnabled: Bad display token: %p", display.get());
-        return BAD_VALUE;
-    }
+                                                          uint64_t maxFrames) {
+    status_t result = NAME_NOT_FOUND;
 
-    return getHwComposer().setDisplayContentSamplingEnabled(*display->getId(), enable,
-                                                            componentMask, maxFrames);
+    postMessageSync(new LambdaMessage([&] {
+        if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+            result = getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
+                                                                      componentMask, maxFrames);
+        } else {
+            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+        }
+    }));
+
+    return result;
 }
 
 status_t SurfaceFlinger::getDisplayedContentSample(const sp<IBinder>& displayToken,
                                                    uint64_t maxFrames, uint64_t timestamp,
                                                    DisplayedFrameStats* outStats) const {
-    const auto display = getDisplayDevice(displayToken);
-    if (!display || !display->getId()) {
-        ALOGE("getDisplayContentSample: Bad display token: %p", displayToken.get());
-        return BAD_VALUE;
+    Mutex::Autolock lock(mStateLock);
+
+    const auto displayId = getPhysicalDisplayIdLocked(displayToken);
+    if (!displayId) {
+        return NAME_NOT_FOUND;
     }
 
-    return getHwComposer().getDisplayedContentSample(*display->getId(), maxFrames, timestamp,
-                                                     outStats);
+    return getHwComposer().getDisplayedContentSample(*displayId, maxFrames, timestamp, outStats);
 }
 
 status_t SurfaceFlinger::getProtectedContentSupport(bool* outSupported) const {
@@ -1397,19 +1388,15 @@
     if (!displayToken || !outIsWideColorDisplay) {
         return BAD_VALUE;
     }
-    Mutex::Autolock _l(mStateLock);
+
+    Mutex::Autolock lock(mStateLock);
     const auto display = getDisplayDeviceLocked(displayToken);
     if (!display) {
-        return BAD_VALUE;
+        return NAME_NOT_FOUND;
     }
 
-    // Use hasWideColorDisplay to override built-in display.
-    const auto displayId = display->getId();
-    if (displayId && displayId == getInternalDisplayIdLocked()) {
-        *outIsWideColorDisplay = hasWideColorDisplay;
-        return NO_ERROR;
-    }
-    *outIsWideColorDisplay = display->hasWideColorGamut();
+    *outIsWideColorDisplay =
+            display->isPrimary() ? hasWideColorDisplay : display->hasWideColorGamut();
     return NO_ERROR;
 }
 
@@ -1428,7 +1415,7 @@
 
 status_t SurfaceFlinger::injectVSync(nsecs_t when) {
     Mutex::Autolock lock(mStateLock);
-    return mScheduler->injectVSync(when) ? NO_ERROR : BAD_VALUE;
+    return mScheduler->injectVSync(when, calculateExpectedPresentTime(when)) ? NO_ERROR : BAD_VALUE;
 }
 
 status_t SurfaceFlinger::getLayerDebugInfo(std::vector<LayerDebugInfo>* outLayers) const
@@ -1467,7 +1454,9 @@
     if (!listener || samplingArea == Rect::INVALID_RECT) {
         return BAD_VALUE;
     }
-    mRegionSamplingThread->addListener(samplingArea, stopLayerHandle, listener);
+
+    const wp<Layer> stopLayer = fromHandle(stopLayerHandle);
+    mRegionSamplingThread->addListener(samplingArea, stopLayer, listener);
     return NO_ERROR;
 }
 
@@ -1484,25 +1473,34 @@
     if (!displayToken || !outSupport) {
         return BAD_VALUE;
     }
+
+    Mutex::Autolock lock(mStateLock);
+
     const auto displayId = getPhysicalDisplayIdLocked(displayToken);
     if (!displayId) {
         return NAME_NOT_FOUND;
     }
     *outSupport =
-            getHwComposer().hasDisplayCapability(*displayId, HWC2::DisplayCapability::Brightness);
+            getHwComposer().hasDisplayCapability(*displayId, hal::DisplayCapability::BRIGHTNESS);
     return NO_ERROR;
 }
 
-status_t SurfaceFlinger::setDisplayBrightness(const sp<IBinder>& displayToken,
-                                              float brightness) const {
+status_t SurfaceFlinger::setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) {
     if (!displayToken) {
         return BAD_VALUE;
     }
-    const auto displayId = getPhysicalDisplayIdLocked(displayToken);
-    if (!displayId) {
-        return NAME_NOT_FOUND;
-    }
-    return getHwComposer().setDisplayBrightness(*displayId, brightness);
+
+    status_t result = NAME_NOT_FOUND;
+
+    postMessageSync(new LambdaMessage([&] {
+        if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
+            result = getHwComposer().setDisplayBrightness(*displayId, brightness);
+        } else {
+            ALOGE("%s: Invalid display token %p", __FUNCTION__, displayToken.get());
+        }
+    }));
+
+    return result;
 }
 
 status_t SurfaceFlinger::notifyPowerHint(int32_t hintId) {
@@ -1577,9 +1575,9 @@
     return getHwComposer().getDisplayVsyncPeriod(*displayId);
 }
 
-void SurfaceFlinger::onVsyncReceived(int32_t sequenceId, hwc2_display_t hwcDisplayId,
+void SurfaceFlinger::onVsyncReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId,
                                      int64_t timestamp,
-                                     std::optional<hwc2_vsync_period_t> vsyncPeriod) {
+                                     std::optional<hal::VsyncPeriodNanos> vsyncPeriod) {
     ATRACE_NAME("SF onVsync");
 
     Mutex::Autolock lock(mStateLock);
@@ -1631,10 +1629,10 @@
     setDesiredActiveConfig({refreshRate.getConfigId(), event});
 }
 
-void SurfaceFlinger::onHotplugReceived(int32_t sequenceId, hwc2_display_t hwcDisplayId,
-                                       HWC2::Connection connection) {
+void SurfaceFlinger::onHotplugReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId,
+                                       hal::Connection connection) {
     ALOGV("%s(%d, %" PRIu64 ", %s)", __FUNCTION__, sequenceId, hwcDisplayId,
-          connection == HWC2::Connection::Connected ? "connected" : "disconnected");
+          connection == hal::Connection::CONNECTED ? "connected" : "disconnected");
 
     // Ignore events that do not have the right sequenceId.
     if (sequenceId != getBE().mComposerSequenceId) {
@@ -1658,8 +1656,8 @@
 }
 
 void SurfaceFlinger::onVsyncPeriodTimingChangedReceived(
-        int32_t sequenceId, hwc2_display_t /*display*/,
-        const hwc_vsync_period_change_timeline_t& updatedTimeline) {
+        int32_t sequenceId, hal::HWDisplayId /*display*/,
+        const hal::VsyncPeriodChangeTimeline& updatedTimeline) {
     Mutex::Autolock lock(mStateLock);
     if (sequenceId != getBE().mComposerSequenceId) {
         return;
@@ -1667,12 +1665,12 @@
     mScheduler->onNewVsyncPeriodChangeTimeline(updatedTimeline);
 }
 
-void SurfaceFlinger::onSeamlessPossible(int32_t /*sequenceId*/, hwc2_display_t /*display*/) {
+void SurfaceFlinger::onSeamlessPossible(int32_t /*sequenceId*/, hal::HWDisplayId /*display*/) {
     // TODO(b/142753666): use constraints when calling to setActiveConfigWithConstrains and
     // use this callback to know when to retry in case of SEAMLESS_NOT_POSSIBLE.
 }
 
-void SurfaceFlinger::onRefreshReceived(int sequenceId, hwc2_display_t /*hwcDisplayId*/) {
+void SurfaceFlinger::onRefreshReceived(int sequenceId, hal::HWDisplayId /*hwcDisplayId*/) {
     Mutex::Autolock lock(mStateLock);
     if (sequenceId != getBE().mComposerSequenceId) {
         return;
@@ -1692,7 +1690,7 @@
 void SurfaceFlinger::setPrimaryVsyncEnabledInternal(bool enabled) {
     ATRACE_CALL();
 
-    mHWCVsyncPendingState = enabled ? HWC2::Vsync::Enable : HWC2::Vsync::Disable;
+    mHWCVsyncPendingState = enabled ? hal::Vsync::ENABLE : hal::Vsync::DISABLE;
 
     if (const auto displayId = getInternalDisplayIdLocked()) {
         sp<DisplayDevice> display = getDefaultDisplayDeviceLocked();
@@ -1735,7 +1733,7 @@
     sp<DisplayDevice> display = getDefaultDisplayDeviceLocked();
     LOG_ALWAYS_FATAL_IF(!display);
 
-    const int currentDisplayPowerMode = display->getPowerMode();
+    const hal::PowerMode currentDisplayPowerMode = display->getPowerMode();
 
     // Clear out all the output layers from the composition engine for all
     // displays before destroying the hardware composer interface. This ensures
@@ -1828,16 +1826,16 @@
     return fence->getSignalTime();
 }
 
-void SurfaceFlinger::populateExpectedPresentTime() {
+nsecs_t SurfaceFlinger::calculateExpectedPresentTime(nsecs_t now) const {
     DisplayStatInfo stats;
     mScheduler->getDisplayStatInfo(&stats);
-    const nsecs_t presentTime = mScheduler->getDispSyncExpectedPresentTime();
+    const nsecs_t presentTime = mScheduler->getDispSyncExpectedPresentTime(now);
     // Inflate the expected present time if we're targetting the next vsync.
-    mExpectedPresentTime.store(
-            mVSyncModulator->getOffsets().sf > 0 ? presentTime : presentTime + stats.vsyncPeriod);
+    return mVSyncModulator->getOffsets().sf > 0 ? presentTime : presentTime + stats.vsyncPeriod;
 }
 
-void SurfaceFlinger::onMessageReceived(int32_t what) NO_THREAD_SAFETY_ANALYSIS {
+void SurfaceFlinger::onMessageReceived(int32_t what,
+                                       nsecs_t expectedVSyncTime) NO_THREAD_SAFETY_ANALYSIS {
     ATRACE_CALL();
     switch (what) {
         case MessageQueue::INVALIDATE: {
@@ -1846,7 +1844,7 @@
             // value throughout this frame to make sure all layers are
             // seeing this same value.
             const nsecs_t lastExpectedPresentTime = mExpectedPresentTime.load();
-            populateExpectedPresentTime();
+            mExpectedPresentTime = expectedVSyncTime;
 
             // When Backpressure propagation is enabled we want to give a small grace period
             // for the present fence to fire instead of just giving up on this frame to handle cases
@@ -1901,6 +1899,20 @@
                 mGpuFrameMissedCount++;
             }
 
+            // If we are in the middle of a config change and the fence hasn't
+            // fired yet just wait for the next invalidate
+            if (mSetActiveConfigPending) {
+                if (framePending) {
+                    mEventQueue->invalidate();
+                    break;
+                }
+
+                // We received the present fence from the HWC, so we assume it successfully updated
+                // the config, hence we update SF.
+                mSetActiveConfigPending = false;
+                setActiveConfigInternal();
+            }
+
             if (framePending && mPropagateBackpressure) {
                 if ((hwcFrameMissed && !gpuFrameMissed) ||
                     mPropagateBackpressureClientComposition) {
@@ -1923,7 +1935,7 @@
                 // power mode may operate at a different frame rate than is
                 // reported in their config, which causes noticeable (but less
                 // severe) jank.
-                if (displayDevice && displayDevice->getPowerMode() == HWC_POWER_MODE_NORMAL) {
+                if (displayDevice && displayDevice->getPowerMode() == hal::PowerMode::ON) {
                     const nsecs_t currentTime = systemTime();
                     const nsecs_t jankDuration = currentTime - mMissedFrameJankStart;
                     if (jankDuration > kMinJankyDuration && jankDuration < kMaxJankyDuration) {
@@ -1948,8 +1960,15 @@
             // potentially trigger a display handoff.
             updateVrFlinger();
 
+            if (mTracingEnabledChanged) {
+                mTracingEnabled = mTracing.isEnabled();
+                mTracingEnabledChanged = false;
+            }
+
             bool refreshNeeded;
-            withTracingLock([&]() {
+            {
+                ConditionalLockGuard<std::mutex> lock(mTracingLock, mTracingEnabled);
+
                 refreshNeeded = handleMessageTransaction();
                 refreshNeeded |= handleMessageInvalidate();
                 if (mTracingEnabled) {
@@ -1959,7 +1978,7 @@
                         mTracing.notifyLocked("visibleRegionsDirty");
                     }
                 }
-            });
+            }
 
             // Layers need to get updated (in the previous line) before we can use them for
             // choosing the refresh rate.
@@ -1970,9 +1989,7 @@
                 mScheduler->chooseRefreshRateForContent();
             }
 
-            if (performSetActiveConfig()) {
-                break;
-            }
+            performSetActiveConfig();
 
             updateCursorAsync();
             updateInputFlinger();
@@ -2081,6 +2098,8 @@
     postFrame();
     postComposition();
 
+    const bool prevFrameHadDeviceComposition = mHadDeviceComposition;
+
     mHadClientComposition =
             std::any_of(mDisplays.cbegin(), mDisplays.cend(), [](const auto& tokenDisplayPair) {
                 auto& displayDevice = tokenDisplayPair.second;
@@ -2098,6 +2117,11 @@
                 return displayDevice->getCompositionDisplay()->getState().reusedClientComposition;
             });
 
+    // Only report a strategy change if we move in and out of composition with hw overlays
+    if (prevFrameHadDeviceComposition != mHadDeviceComposition) {
+        mTimeStats->incrementCompositionStrategyChanges();
+    }
+
     mVSyncModulator->onRefreshed(mHadClientComposition);
 
     mLayersWithQueuedFrames.clear();
@@ -2242,8 +2266,11 @@
         }
     });
 
+    mTransactionCompletedThread.addPresentFence(mPreviousPresentFences[0]);
+    mTransactionCompletedThread.sendCallbacks();
+
     if (displayDevice && displayDevice->isPrimary() &&
-        displayDevice->getPowerMode() == HWC_POWER_MODE_NORMAL && presentFenceTime->isValid()) {
+        displayDevice->getPowerMode() == hal::PowerMode::ON && presentFenceTime->isValid()) {
         mScheduler->addPresentFence(presentFenceTime);
     }
 
@@ -2305,6 +2332,9 @@
     }
     getBE().mLastSwapTime = currentTime;
 
+    // Cleanup any outstanding resources due to rendering a prior frame.
+    getRenderEngine().cleanupPostRender();
+
     {
         std::lock_guard lock(mTexturePoolMutex);
         if (mTexturePool.size() < mTexturePoolSize) {
@@ -2322,9 +2352,6 @@
         }
     }
 
-    mTransactionCompletedThread.addPresentFence(mPreviousPresentFences[0]);
-    mTransactionCompletedThread.sendCallbacks();
-
     if (mLumaSampling && mRegionSamplingThread) {
         mRegionSamplingThread->notifyNewContent();
     }
@@ -2337,6 +2364,10 @@
     }
 }
 
+FloatRect SurfaceFlinger::getLayerClipBoundsForDisplay(const DisplayDevice& displayDevice) const {
+    return displayDevice.getViewport().toFloatRect();
+}
+
 void SurfaceFlinger::computeLayerBounds() {
     for (const auto& pair : mDisplays) {
         const auto& displayDevice = pair.second;
@@ -2347,7 +2378,7 @@
                 continue;
             }
 
-            layer->computeBounds(displayDevice->getViewport().toFloatRect(), ui::Transform(),
+            layer->computeBounds(getLayerClipBoundsForDisplay(*displayDevice), ui::Transform(),
                                  0.f /* shadowRadius */);
         }
     }
@@ -2405,7 +2436,7 @@
         const DisplayId displayId = info->id;
         const auto it = mPhysicalDisplayTokens.find(displayId);
 
-        if (event.connection == HWC2::Connection::Connected) {
+        if (event.connection == hal::Connection::CONNECTED) {
             if (it == mPhysicalDisplayTokens.end()) {
                 ALOGV("Creating display %s", to_string(displayId).c_str());
 
@@ -2509,7 +2540,7 @@
             isInternalDisplay ? internalDisplayOrientation : ui::ROTATION_0;
 
     // virtual displays are always considered enabled
-    creationArgs.initialPowerMode = state.isVirtual() ? HWC_POWER_MODE_NORMAL : HWC_POWER_MODE_OFF;
+    creationArgs.initialPowerMode = state.isVirtual() ? hal::PowerMode::ON : hal::PowerMode::OFF;
 
     sp<DisplayDevice> display = getFactory().createDisplayDevice(creationArgs);
 
@@ -2875,19 +2906,6 @@
 void SurfaceFlinger::updateInputWindowInfo() {
     std::vector<InputWindowInfo> inputHandles;
 
-    // We use a simple caching algorithm here. mInputDirty begins as true,
-    // after we call setInputWindows we set it to false, so
-    // in the future we wont call it again.. We set input dirty to true again
-    // when any layer that hasInput() has a transaction performed on it
-    // or when any parent or relative parent of such a layer has a transaction
-    // performed on it. Not all of these transactions will really result in
-    // input changes but all input changes will spring from these transactions
-    // so the cache is safe but not optimal. It seems like it might be annoyingly
-    // costly to cache and comapre the actual InputWindowHandle vector though.
-    if (!mInputDirty && !mInputWindowCommands.syncInputWindows) {
-        return;
-    }
-
     mDrawingState.traverseInReverseZOrder([&](Layer* layer) {
         if (layer->hasInput()) {
             // When calculating the screen bounds we ignore the transparent region since it may
@@ -2899,8 +2917,6 @@
     mInputFlinger->setInputWindows(inputHandles,
                                    mInputWindowCommands.syncInputWindows ? mSetInputWindowsListener
                                                                          : nullptr);
-
-    mInputDirty = false;
 }
 
 void SurfaceFlinger::commitInputWindowCommands() {
@@ -2945,7 +2961,7 @@
                                                             currentConfig);
     mRefreshRateStats =
             std::make_unique<scheduler::RefreshRateStats>(*mRefreshRateConfigs, *mTimeStats,
-                                                          currentConfig, HWC_POWER_MODE_OFF);
+                                                          currentConfig, hal::PowerMode::OFF);
     mRefreshRateStats->setConfigMode(currentConfig);
 
     mPhaseConfiguration = getFactory().createPhaseConfiguration(*mRefreshRateConfigs);
@@ -3034,26 +3050,6 @@
     mDrawingState.traverse([&](Layer* layer) { layer->updateMirrorInfo(); });
 }
 
-void SurfaceFlinger::withTracingLock(std::function<void()> lockedOperation) {
-    if (mTracingEnabledChanged) {
-        mTracingEnabled = mTracing.isEnabled();
-        mTracingEnabledChanged = false;
-    }
-
-    // Synchronize with Tracing thread
-    std::unique_lock<std::mutex> lock;
-    if (mTracingEnabled) {
-        lock = std::unique_lock<std::mutex>(mDrawingStateLock);
-    }
-
-    lockedOperation();
-
-    // Synchronize with Tracing thread
-    if (mTracingEnabled) {
-        lock.unlock();
-    }
-}
-
 void SurfaceFlinger::commitOffscreenLayers() {
     for (Layer* offscreenLayer : mOffscreenLayers) {
         offscreenLayer->traverse(LayerVector::StateSet::Drawing, [](Layer* layer) {
@@ -3170,7 +3166,7 @@
         Mutex::Autolock _l(mStateLock);
         sp<Layer> parent;
         if (parentHandle != nullptr) {
-            parent = fromHandle(parentHandle);
+            parent = fromHandleLocked(parentHandle).promote();
             if (parent == nullptr) {
                 return NAME_NOT_FOUND;
             }
@@ -3252,7 +3248,6 @@
             while (!transactionQueue.empty()) {
                 const auto& transaction = transactionQueue.front();
                 if (!transactionIsReadyToBeApplied(transaction.desiredPresentTime,
-                                                   true /* useCachedExpectedPresentTime */,
                                                    transaction.states)) {
                     setTransactionFlags(eTransactionFlushNeeded);
                     break;
@@ -3284,10 +3279,7 @@
 
 
 bool SurfaceFlinger::transactionIsReadyToBeApplied(int64_t desiredPresentTime,
-                                                   bool useCachedExpectedPresentTime,
                                                    const Vector<ComposerState>& states) {
-    if (!useCachedExpectedPresentTime)
-        populateExpectedPresentTime();
 
     const nsecs_t expectedPresentTime = mExpectedPresentTime.load();
     // Do not present if the desiredPresentTime has not passed unless it is more than one second
@@ -3339,9 +3331,13 @@
         }
     }
 
+    const bool pendingTransactions = itr != mTransactionQueues.end();
     // Expected present time is computed and cached on invalidate, so it may be stale.
-    if (itr != mTransactionQueues.end() || !transactionIsReadyToBeApplied(
-            desiredPresentTime, false /* useCachedExpectedPresentTime */, states)) {
+    if (!pendingTransactions) {
+        mExpectedPresentTime = calculateExpectedPresentTime(systemTime());
+    }
+
+    if (pendingTransactions || !transactionIsReadyToBeApplied(desiredPresentTime, states)) {
         mTransactionQueues[applyToken].emplace(states, displays, flags, desiredPresentTime,
                                                uncacheBuffer, postTime, privileged,
                                                hasListenerCallbacks, listenerCallbacks);
@@ -3545,7 +3541,7 @@
 
     sp<Layer> layer = nullptr;
     if (s.surface) {
-        layer = fromHandle(s.surface);
+        layer = fromHandleLocked(s.surface).promote();
     } else {
         // The client may provide us a null handle. Treat it as if the layer was removed.
         ALOGW("Attempt to set client state with a null layer handle");
@@ -3861,7 +3857,7 @@
 
     {
         Mutex::Autolock _l(mStateLock);
-        mirrorFrom = fromHandle(mirrorFromHandle);
+        mirrorFrom = fromHandleLocked(mirrorFromHandle).promote();
         if (!mirrorFrom) {
             return NAME_NOT_FOUND;
         }
@@ -4124,7 +4120,7 @@
     setTransactionState(state, displays, 0, nullptr, mPendingInputWindowCommands, -1, {}, false,
                         {});
 
-    setPowerModeInternal(display, HWC_POWER_MODE_NORMAL);
+    setPowerModeInternal(display, hal::PowerMode::ON);
 
     const nsecs_t vsyncPeriod = getVsyncPeriod();
     mAnimFrameTracker.setDisplayRefreshPeriod(vsyncPeriod);
@@ -4141,14 +4137,14 @@
             new LambdaMessage([this]() NO_THREAD_SAFETY_ANALYSIS { onInitializeDisplays(); }));
 }
 
-void SurfaceFlinger::setVsyncEnabledInHWC(DisplayId displayId, HWC2::Vsync enabled) {
+void SurfaceFlinger::setVsyncEnabledInHWC(DisplayId displayId, hal::Vsync enabled) {
     if (mHWCVsyncState != enabled) {
         getHwComposer().setVsyncEnabled(displayId, enabled);
         mHWCVsyncState = enabled;
     }
 }
 
-void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, int mode) {
+void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode) {
     if (display->isVirtual()) {
         ALOGE("%s: Invalid operation on virtual display", __FUNCTION__);
         return;
@@ -4159,7 +4155,7 @@
 
     ALOGD("Setting power mode %d on display %s", mode, to_string(*displayId).c_str());
 
-    int currentMode = display->getPowerMode();
+    const hal::PowerMode currentMode = display->getPowerMode();
     if (mode == currentMode) {
         return;
     }
@@ -4167,15 +4163,15 @@
     display->setPowerMode(mode);
 
     if (mInterceptor->isEnabled()) {
-        mInterceptor->savePowerModeUpdate(display->getSequenceId(), mode);
+        mInterceptor->savePowerModeUpdate(display->getSequenceId(), static_cast<int32_t>(mode));
     }
 
-    if (currentMode == HWC_POWER_MODE_OFF) {
+    if (currentMode == hal::PowerMode::OFF) {
         if (SurfaceFlinger::setSchedFifo(true) != NO_ERROR) {
             ALOGW("Couldn't set SCHED_FIFO on display on: %s\n", strerror(errno));
         }
         getHwComposer().setPowerMode(*displayId, mode);
-        if (display->isPrimary() && mode != HWC_POWER_MODE_DOZE_SUSPEND) {
+        if (display->isPrimary() && mode != hal::PowerMode::DOZE_SUSPEND) {
             setVsyncEnabledInHWC(*displayId, mHWCVsyncPendingState);
             mScheduler->onScreenAcquired(mAppConnectionHandle);
             mScheduler->resyncToHardwareVsync(true, getVsyncPeriod());
@@ -4184,31 +4180,30 @@
         mVisibleRegionsDirty = true;
         mHasPoweredOff = true;
         repaintEverything();
-    } else if (mode == HWC_POWER_MODE_OFF) {
+    } else if (mode == hal::PowerMode::OFF) {
         // Turn off the display
         if (SurfaceFlinger::setSchedFifo(false) != NO_ERROR) {
             ALOGW("Couldn't set SCHED_OTHER on display off: %s\n", strerror(errno));
         }
-        if (display->isPrimary() && currentMode != HWC_POWER_MODE_DOZE_SUSPEND) {
+        if (display->isPrimary() && currentMode != hal::PowerMode::DOZE_SUSPEND) {
             mScheduler->disableHardwareVsync(true);
             mScheduler->onScreenReleased(mAppConnectionHandle);
         }
 
         // Make sure HWVsync is disabled before turning off the display
-        setVsyncEnabledInHWC(*displayId, HWC2::Vsync::Disable);
+        setVsyncEnabledInHWC(*displayId, hal::Vsync::DISABLE);
 
         getHwComposer().setPowerMode(*displayId, mode);
         mVisibleRegionsDirty = true;
         // from this point on, SF will stop drawing on this display
-    } else if (mode == HWC_POWER_MODE_DOZE ||
-               mode == HWC_POWER_MODE_NORMAL) {
+    } else if (mode == hal::PowerMode::DOZE || mode == hal::PowerMode::ON) {
         // Update display while dozing
         getHwComposer().setPowerMode(*displayId, mode);
-        if (display->isPrimary() && currentMode == HWC_POWER_MODE_DOZE_SUSPEND) {
+        if (display->isPrimary() && currentMode == hal::PowerMode::DOZE_SUSPEND) {
             mScheduler->onScreenAcquired(mAppConnectionHandle);
             mScheduler->resyncToHardwareVsync(true, getVsyncPeriod());
         }
-    } else if (mode == HWC_POWER_MODE_DOZE_SUSPEND) {
+    } else if (mode == hal::PowerMode::DOZE_SUSPEND) {
         // Leave display going to doze
         if (display->isPrimary()) {
             mScheduler->disableHardwareVsync(true);
@@ -4223,7 +4218,7 @@
     if (display->isPrimary()) {
         mTimeStats->setPowerMode(mode);
         mRefreshRateStats->setPowerMode(mode);
-        mScheduler->setDisplayPowerState(mode == HWC_POWER_MODE_NORMAL);
+        mScheduler->setDisplayPowerState(mode == hal::PowerMode::ON);
     }
 
     ALOGD("Finished setting power mode %d on display %s", mode, to_string(*displayId).c_str());
@@ -4231,14 +4226,14 @@
 
 void SurfaceFlinger::setPowerMode(const sp<IBinder>& displayToken, int mode) {
     postMessageSync(new LambdaMessage([&]() NO_THREAD_SAFETY_ANALYSIS {
-        const auto display = getDisplayDevice(displayToken);
+        const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
             ALOGE("Attempt to set power mode %d for invalid display token %p", mode,
                   displayToken.get());
         } else if (display->isVirtual()) {
             ALOGW("Attempt to set power mode %d for virtual display", mode);
         } else {
-            setPowerModeInternal(display, mode);
+            setPowerModeInternal(display, static_cast<hal::PowerMode>(mode));
         }
     }));
 }
@@ -4398,11 +4393,19 @@
 
     scheduler::RefreshRateConfigs::Policy policy = mRefreshRateConfigs->getDisplayManagerPolicy();
     StringAppendF(&result,
-                  "DesiredDisplayConfigSpecs: default config ID: %d"
+                  "DesiredDisplayConfigSpecs (DisplayManager): default config ID: %d"
                   ", min: %.2f Hz, max: %.2f Hz",
                   policy.defaultConfig.value(), policy.minRefreshRate, policy.maxRefreshRate);
     StringAppendF(&result, "(config override by backdoor: %s)\n\n",
                   mDebugDisplayConfigSetByBackdoor ? "yes" : "no");
+    scheduler::RefreshRateConfigs::Policy currentPolicy = mRefreshRateConfigs->getCurrentPolicy();
+    if (currentPolicy != policy) {
+        StringAppendF(&result,
+                      "DesiredDisplayConfigSpecs (Override): default config ID: %d"
+                      ", min: %.2f Hz, max: %.2f Hz\n\n",
+                      currentPolicy.defaultConfig.value(), currentPolicy.minRefreshRate,
+                      currentPolicy.maxRefreshRate);
+    }
 
     mScheduler->dump(mAppConnectionHandle, result);
     mScheduler->getPrimaryDispSync().dump(result);
@@ -4523,7 +4526,7 @@
 
 void SurfaceFlinger::dumpRawDisplayIdentificationData(const DumpArgs& args,
                                                       std::string& result) const {
-    hwc2_display_t hwcDisplayId;
+    hal::HWDisplayId hwcDisplayId;
     uint8_t port;
     DisplayIdentificationData data;
 
@@ -4560,11 +4563,13 @@
     result.append("\n");
 }
 
-LayersProto SurfaceFlinger::dumpDrawingStateProto(
-        uint32_t traceFlags, const sp<const DisplayDevice>& displayDevice) const {
+LayersProto SurfaceFlinger::dumpDrawingStateProto(uint32_t traceFlags) const {
+    // If context is SurfaceTracing thread, mTracingLock blocks display transactions on main thread.
+    const auto display = getDefaultDisplayDeviceLocked();
+
     LayersProto layersProto;
     for (const sp<Layer>& layer : mDrawingState.layersSortedByZ) {
-        layer->writeToProto(layersProto, traceFlags, displayDevice);
+        layer->writeToProto(layersProto, traceFlags, display);
     }
 
     return layersProto;
@@ -4596,10 +4601,7 @@
 
 LayersProto SurfaceFlinger::dumpProtoFromMainThread(uint32_t traceFlags) {
     LayersProto layersProto;
-    postMessageSync(new LambdaMessage([&]() {
-        const auto& displayDevice = getDefaultDisplayDeviceLocked();
-        layersProto = dumpDrawingStateProto(traceFlags, displayDevice);
-    }));
+    postMessageSync(new LambdaMessage([&] { layersProto = dumpDrawingStateProto(traceFlags); }));
     return layersProto;
 }
 
@@ -4928,9 +4930,9 @@
         code == IBinder::SYSPROPS_TRANSACTION) {
         return OK;
     }
-    // Numbers from 1000 to 1034 are currently used for backdoors. The code
+    // Numbers from 1000 to 1036 are currently used for backdoors. The code
     // in onTransact verifies that the user is root, and has access to use SF.
-    if (code >= 1000 && code <= 1035) {
+    if (code >= 1000 && code <= 1036) {
         ALOGV("Accessing SurfaceFlinger through backdoor code: %u", code);
         return OK;
     }
@@ -5126,20 +5128,12 @@
                 n = data.readInt32();
                 if (n) {
                     ALOGD("LayerTracing enabled");
-                    Mutex::Autolock lock(mStateLock);
-                    mTracingEnabledChanged = true;
-                    mTracing.enable();
+                    mTracingEnabledChanged = mTracing.enable();
                     reply->writeInt32(NO_ERROR);
                 } else {
                     ALOGD("LayerTracing disabled");
-                    bool writeFile = false;
-                    {
-                        Mutex::Autolock lock(mStateLock);
-                        mTracingEnabledChanged = true;
-                        writeFile = mTracing.disable();
-                    }
-
-                    if (writeFile) {
+                    mTracingEnabledChanged = mTracing.disable();
+                    if (mTracingEnabledChanged) {
                         reply->writeInt32(mTracing.writeToFile());
                     } else {
                         reply->writeInt32(NO_ERROR);
@@ -5267,6 +5261,18 @@
                 }
                 return NO_ERROR;
             }
+            case 1036: {
+                if (data.readInt32() > 0) {
+                    status_t result =
+                            acquireFrameRateFlexibilityToken(&mDebugFrameRateFlexibilityToken);
+                    if (result != NO_ERROR) {
+                        return result;
+                    }
+                } else {
+                    mDebugFrameRateFlexibilityToken = nullptr;
+                }
+                return NO_ERROR;
+            }
         }
     }
     return err;
@@ -5344,10 +5350,10 @@
 
     sp<DisplayDevice> display;
     {
-        Mutex::Autolock _l(mStateLock);
+        Mutex::Autolock lock(mStateLock);
 
         display = getDisplayDeviceLocked(displayToken);
-        if (!display) return BAD_VALUE;
+        if (!display) return NAME_NOT_FOUND;
 
         // set the requested width/height to the logical display viewport size
         // by default
@@ -5423,10 +5429,10 @@
     uint32_t height;
     ui::Transform::RotationFlags captureOrientation;
     {
-        Mutex::Autolock _l(mStateLock);
+        Mutex::Autolock lock(mStateLock);
         display = getDisplayByIdOrLayerStack(displayOrLayerStack);
         if (!display) {
-            return BAD_VALUE;
+            return NAME_NOT_FOUND;
         }
 
         width = uint32_t(display->getViewport().width());
@@ -5561,9 +5567,9 @@
     std::unordered_set<sp<Layer>, ISurfaceComposer::SpHash<Layer>> excludeLayers;
     Rect displayViewport;
     {
-        Mutex::Autolock _l(mStateLock);
+        Mutex::Autolock lock(mStateLock);
 
-        parent = fromHandle(layerHandleBinder);
+        parent = fromHandleLocked(layerHandleBinder).promote();
         if (parent == nullptr || parent->isRemovedFromCurrentState()) {
             ALOGE("captureLayers called with an invalid or removed parent");
             return NAME_NOT_FOUND;
@@ -5596,7 +5602,7 @@
         reqHeight = crop.height() * frameScale;
 
         for (const auto& handle : excludeHandles) {
-            sp<Layer> excludeLayer = fromHandle(handle);
+            sp<Layer> excludeLayer = fromHandleLocked(handle).promote();
             if (excludeLayer != nullptr) {
                 excludeLayers.emplace(excludeLayer);
             } else {
@@ -5605,9 +5611,9 @@
             }
         }
 
-        auto display = getDisplayByLayerStack(parent->getLayerStack());
+        const auto display = getDisplayByLayerStack(parent->getLayerStack());
         if (!display) {
-            return BAD_VALUE;
+            return NAME_NOT_FOUND;
         }
 
         displayViewport = display->getViewport();
@@ -5666,13 +5672,13 @@
                                              usage, "screenshot");
 
     return captureScreenCommon(renderArea, traverseLayers, *outBuffer, useIdentityTransform,
-                               outCapturedSecureLayers);
+                               false /* regionSampling */, outCapturedSecureLayers);
 }
 
 status_t SurfaceFlinger::captureScreenCommon(RenderArea& renderArea,
                                              TraverseLayersFunction traverseLayers,
                                              const sp<GraphicBuffer>& buffer,
-                                             bool useIdentityTransform,
+                                             bool useIdentityTransform, bool regionSampling,
                                              bool& outCapturedSecureLayers) {
     // This mutex protects syncFd and captureResult for communication of the return values from the
     // main thread back to this Binder thread
@@ -5703,7 +5709,7 @@
             renderArea.render([&] {
                 result = captureScreenImplLocked(renderArea, traverseLayers, buffer.get(),
                                                  useIdentityTransform, forSystem, &fd,
-                                                 outCapturedSecureLayers);
+                                                 regionSampling, outCapturedSecureLayers);
             });
         }
 
@@ -5740,7 +5746,7 @@
 void SurfaceFlinger::renderScreenImplLocked(const RenderArea& renderArea,
                                             TraverseLayersFunction traverseLayers,
                                             ANativeWindowBuffer* buffer, bool useIdentityTransform,
-                                            int* outSyncFd) {
+                                            bool regionSampling, int* outSyncFd) {
     ATRACE_CALL();
 
     const auto reqWidth = renderArea.getReqWidth();
@@ -5796,6 +5802,12 @@
             for (auto& settings : results) {
                 settings.geometry.positionTransform =
                         transform.asMatrix4() * settings.geometry.positionTransform;
+                // There's no need to process blurs when we're executing region sampling,
+                // we're just trying to understand what we're drawing, and doing so without
+                // blurs is already a pretty good approximation.
+                if (regionSampling) {
+                    settings.backgroundBlurRadius = 0;
+                }
             }
             clientCompositionLayers.insert(clientCompositionLayers.end(),
                                            std::make_move_iterator(results.begin()),
@@ -5833,7 +5845,8 @@
                                                  TraverseLayersFunction traverseLayers,
                                                  ANativeWindowBuffer* buffer,
                                                  bool useIdentityTransform, bool forSystem,
-                                                 int* outSyncFd, bool& outCapturedSecureLayers) {
+                                                 int* outSyncFd, bool regionSampling,
+                                                 bool& outCapturedSecureLayers) {
     ATRACE_CALL();
 
     traverseLayers([&](Layer* layer) {
@@ -5848,7 +5861,8 @@
         ALOGW("FB is protected: PERMISSION_DENIED");
         return PERMISSION_DENIED;
     }
-    renderScreenImplLocked(renderArea, traverseLayers, buffer, useIdentityTransform, outSyncFd);
+    renderScreenImplLocked(renderArea, traverseLayers, buffer, useIdentityTransform, regionSampling,
+                           outSyncFd);
     return NO_ERROR;
 }
 
@@ -5912,11 +5926,11 @@
         const auto displayId = display->getId();
         LOG_ALWAYS_FATAL_IF(!displayId);
 
-        HWC2::VsyncPeriodChangeConstraints constraints;
+        hal::VsyncPeriodChangeConstraints constraints;
         constraints.desiredTimeNanos = systemTime();
         constraints.seamlessRequired = false;
 
-        HWC2::VsyncPeriodChangeTimeline timeline = {0, 0, 0};
+        hal::VsyncPeriodChangeTimeline timeline = {0, 0, 0};
         if (getHwComposer().setActiveConfigWithConstraints(*displayId,
                                                            policy->defaultConfig.value(),
                                                            constraints, &timeline) < 0) {
@@ -5994,17 +6008,16 @@
         return BAD_VALUE;
     }
 
-    status_t result = NO_ERROR;
+    status_t result = NAME_NOT_FOUND;
 
     postMessageSync(new LambdaMessage([&]() {
         const auto display = getDisplayDeviceLocked(displayToken);
         if (!display) {
-            result = BAD_VALUE;
             ALOGE("Attempt to set desired display configs for invalid display token %p",
                   displayToken.get());
         } else if (display->isVirtual()) {
-            result = BAD_VALUE;
             ALOGW("Attempt to set desired display configs for virtual display");
+            result = INVALID_OPERATION;
         } else {
             result = setDesiredDisplayConfigSpecsInternal(display,
                                                           scheduler::RefreshRateConfigs::
@@ -6043,12 +6056,11 @@
         *outMaxRefreshRate = policy.maxRefreshRate;
         return NO_ERROR;
     } else if (display->isVirtual()) {
-        return BAD_VALUE;
+        return INVALID_OPERATION;
     } else {
         const auto displayId = display->getId();
-        if (!displayId) {
-            return BAD_VALUE;
-        }
+        LOG_FATAL_IF(!displayId);
+
         *outDefaultConfig = getHwComposer().getActiveConfigIndex(*displayId);
         auto vsyncPeriod = getHwComposer().getActiveConfig(*displayId)->getVsyncPeriod();
         *outMinRefreshRate = 1e9f / vsyncPeriod;
@@ -6061,7 +6073,12 @@
     mFlinger->setInputWindowsFinished();
 }
 
-sp<Layer> SurfaceFlinger::fromHandle(const sp<IBinder>& handle) {
+wp<Layer> SurfaceFlinger::fromHandle(const sp<IBinder>& handle) {
+    Mutex::Autolock _l(mStateLock);
+    return fromHandleLocked(handle);
+}
+
+wp<Layer> SurfaceFlinger::fromHandleLocked(const sp<IBinder>& handle) {
     BBinder* b = nullptr;
     if (handle) {
         b = handle->localBinder();
@@ -6071,7 +6088,7 @@
     }
     auto it = mLayersByLocalBinderToken.find(b);
     if (it != mLayersByLocalBinderToken.end()) {
-        return it->second.promote();
+        return it->second;
     }
     return nullptr;
 }
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 12efca1..eb269b4 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -33,7 +33,6 @@
 #include <gui/ITransactionCompletedListener.h>
 #include <gui/LayerState.h>
 #include <gui/OccupancyTracker.h>
-#include <hardware/hwcomposer_defs.h>
 #include <input/ISetInputWindowsListener.h>
 #include <layerproto/LayerProtoHeader.h>
 #include <math/mat4.h>
@@ -311,12 +310,12 @@
 
     // main thread function to enable/disable h/w composer event
     void setPrimaryVsyncEnabledInternal(bool enabled);
-    void setVsyncEnabledInHWC(DisplayId displayId, HWC2::Vsync enabled);
+    void setVsyncEnabledInHWC(DisplayId displayId, hal::Vsync enabled);
 
     // called on the main thread by MessageQueue when an internal message
     // is received
     // TODO: this should be made accessible only to MessageQueue
-    void onMessageReceived(int32_t what);
+    void onMessageReceived(int32_t what, nsecs_t expectedVSyncTime);
 
     renderengine::RenderEngine& getRenderEngine() const;
 
@@ -332,7 +331,12 @@
         return mTransactionCompletedThread;
     }
 
-    sp<Layer> fromHandle(const sp<IBinder>& handle) REQUIRES(mStateLock);
+    // Converts from a binder handle to a Layer
+    // Returns nullptr if the handle does not point to an existing layer.
+    // Otherwise, returns a weak reference so that callers off the main-thread
+    // won't accidentally hold onto the last strong reference.
+    wp<Layer> fromHandle(const sp<IBinder>& handle);
+    wp<Layer> fromHandleLocked(const sp<IBinder>& handle) REQUIRES(mStateLock);
 
     // Inherit from ClientCache::ErasedRecipient
     void bufferErased(const client_cache_t& clientCacheId) override;
@@ -475,14 +479,13 @@
     status_t getCompositionPreference(ui::Dataspace* outDataspace, ui::PixelFormat* outPixelFormat,
                                       ui::Dataspace* outWideColorGamutDataspace,
                                       ui::PixelFormat* outWideColorGamutPixelFormat) const override;
-    status_t getDisplayedContentSamplingAttributes(const sp<IBinder>& display,
+    status_t getDisplayedContentSamplingAttributes(const sp<IBinder>& displayToken,
                                                    ui::PixelFormat* outFormat,
                                                    ui::Dataspace* outDataspace,
                                                    uint8_t* outComponentMask) const override;
-    status_t setDisplayContentSamplingEnabled(const sp<IBinder>& display, bool enable,
-                                              uint8_t componentMask,
-                                              uint64_t maxFrames) const override;
-    status_t getDisplayedContentSample(const sp<IBinder>& display, uint64_t maxFrames,
+    status_t setDisplayContentSamplingEnabled(const sp<IBinder>& displayToken, bool enable,
+                                              uint8_t componentMask, uint64_t maxFrames) override;
+    status_t getDisplayedContentSample(const sp<IBinder>& displayToken, uint64_t maxFrames,
                                        uint64_t timestamp,
                                        DisplayedFrameStats* outStats) const override;
     status_t getProtectedContentSupport(bool* outSupported) const override;
@@ -498,7 +501,7 @@
                                           float* outMaxRefreshRate) override;
     status_t getDisplayBrightnessSupport(const sp<IBinder>& displayToken,
                                          bool* outSupport) const override;
-    status_t setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) const override;
+    status_t setDisplayBrightness(const sp<IBinder>& displayToken, float brightness) override;
     status_t notifyPowerHint(int32_t hintId) override;
     status_t setGlobalShadowSettings(const half4& ambientColor, const half4& spotColor,
                                      float lightPosY, float lightPosZ, float lightRadius) override;
@@ -518,15 +521,15 @@
     /* ------------------------------------------------------------------------
      * HWC2::ComposerCallback / HWComposer::EventHandler interface
      */
-    void onVsyncReceived(int32_t sequenceId, hwc2_display_t hwcDisplayId, int64_t timestamp,
-                         std::optional<hwc2_vsync_period_t> vsyncPeriod) override;
-    void onHotplugReceived(int32_t sequenceId, hwc2_display_t hwcDisplayId,
-                           HWC2::Connection connection) override;
-    void onRefreshReceived(int32_t sequenceId, hwc2_display_t hwcDisplayId) override;
+    void onVsyncReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId, int64_t timestamp,
+                         std::optional<hal::VsyncPeriodNanos> vsyncPeriod) override;
+    void onHotplugReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId,
+                           hal::Connection connection) override;
+    void onRefreshReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId) override;
     void onVsyncPeriodTimingChangedReceived(
-            int32_t sequenceId, hwc2_display_t display,
-            const hwc_vsync_period_change_timeline_t& updatedTimeline) override;
-    void onSeamlessPossible(int32_t sequenceId, hwc2_display_t display) override;
+            int32_t sequenceId, hal::HWDisplayId display,
+            const hal::VsyncPeriodChangeTimeline& updatedTimeline) override;
+    void onSeamlessPossible(int32_t sequenceId, hal::HWDisplayId display) override;
 
     /* ------------------------------------------------------------------------
      * ISchedulerCallback
@@ -565,15 +568,14 @@
     // Once HWC has returned the present fence, this sets the active config and a new refresh
     // rate in SF.
     void setActiveConfigInternal() REQUIRES(mStateLock);
-    // Active config is updated on INVALIDATE call in a state machine-like manner. When the
-    // desired config was set, HWC needs to update the panel on the next refresh, and when
-    // we receive the fence back, we know that the process was complete. It returns whether
-    // we need to wait for the next invalidate
-    bool performSetActiveConfig() REQUIRES(mStateLock);
+    // Calls to setActiveConfig on the main thread if there is a pending config
+    // that needs to be applied.
+    void performSetActiveConfig() REQUIRES(mStateLock);
     // Called when active config is no longer is progress
     void desiredActiveConfigChangeDone() REQUIRES(mStateLock);
     // called on the main thread in response to setPowerMode()
-    void setPowerModeInternal(const sp<DisplayDevice>& display, int mode) REQUIRES(mStateLock);
+    void setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode)
+            REQUIRES(mStateLock);
 
     // Sets the desired display configs.
     status_t setDesiredDisplayConfigSpecsInternal(
@@ -581,11 +583,6 @@
             const std::optional<scheduler::RefreshRateConfigs::Policy>& policy, bool overridePolicy)
             EXCLUDES(mStateLock);
 
-    // called on the main thread in response to setAutoLowLatencyMode()
-    void setAutoLowLatencyModeInternal(const sp<IBinder>& displayToken, bool on);
-    // called on the main thread in response to setGameContentType()
-    void setGameContentTypeInternal(const sp<IBinder>& displayToken, bool on);
-
     // Returns whether the transaction actually modified any state
     bool handleMessageTransaction();
 
@@ -633,7 +630,6 @@
     void commitTransaction() REQUIRES(mStateLock);
     void commitOffscreenLayers();
     bool transactionIsReadyToBeApplied(int64_t desiredPresentTime,
-                                       bool useCachedExpectedPresentTime,
                                        const Vector<ComposerState>& states);
     uint32_t setDisplayStateLocked(const DisplayState& s) REQUIRES(mStateLock);
     uint32_t addInputWindowCommands(const InputWindowCommands& inputWindowCommands)
@@ -647,6 +643,13 @@
             REQUIRES(mStateLock);
     virtual void commitTransactionLocked();
 
+    // Used internally by computeLayerBounds() to gets the clip rectangle to use for the
+    // root layers on a particular display in layer-coordinate space. The
+    // layers (and effectively their children) will be clipped against this
+    // rectangle. The base behavior is to clip to the visible region of the
+    // display.
+    virtual FloatRect getLayerClipBoundsForDisplay(const DisplayDevice&) const;
+
 private:
     /* ------------------------------------------------------------------------
      * Layer management
@@ -705,19 +708,20 @@
 
     void renderScreenImplLocked(const RenderArea& renderArea, TraverseLayersFunction traverseLayers,
                                 ANativeWindowBuffer* buffer, bool useIdentityTransform,
-                                int* outSyncFd);
+                                bool regionSampling, int* outSyncFd);
     status_t captureScreenCommon(RenderArea& renderArea, TraverseLayersFunction traverseLayers,
                                  sp<GraphicBuffer>* outBuffer, const ui::PixelFormat reqPixelFormat,
                                  bool useIdentityTransform, bool& outCapturedSecureLayers);
     status_t captureScreenCommon(RenderArea& renderArea, TraverseLayersFunction traverseLayers,
                                  const sp<GraphicBuffer>& buffer, bool useIdentityTransform,
-                                 bool& outCapturedSecureLayers);
+                                 bool regionSampling, bool& outCapturedSecureLayers);
     const sp<DisplayDevice> getDisplayByIdOrLayerStack(uint64_t displayOrLayerStack);
     const sp<DisplayDevice> getDisplayByLayerStack(uint64_t layerStack);
     status_t captureScreenImplLocked(const RenderArea& renderArea,
                                      TraverseLayersFunction traverseLayers,
                                      ANativeWindowBuffer* buffer, bool useIdentityTransform,
-                                     bool forSystem, int* outSyncFd, bool& outCapturedSecureLayers);
+                                     bool forSystem, int* outSyncFd, bool regionSampling,
+                                     bool& outCapturedSecureLayers);
     void traverseLayersInDisplay(const sp<const DisplayDevice>& display,
                                  const LayerVector::Visitor& visitor);
 
@@ -740,16 +744,6 @@
     // called when starting, or restarting after system_server death
     void initializeDisplays();
 
-    sp<const DisplayDevice> getDisplayDevice(const wp<IBinder>& displayToken) const {
-        Mutex::Autolock _l(mStateLock);
-        return getDisplayDeviceLocked(displayToken);
-    }
-
-    sp<DisplayDevice> getDisplayDevice(const wp<IBinder>& displayToken) {
-        Mutex::Autolock _l(mStateLock);
-        return getDisplayDeviceLocked(displayToken);
-    }
-
     // NOTE: can only be called from the main thread or with mStateLock held
     sp<const DisplayDevice> getDisplayDeviceLocked(const wp<IBinder>& displayToken) const {
         return const_cast<SurfaceFlinger*>(this)->getDisplayDeviceLocked(displayToken);
@@ -865,9 +859,9 @@
     // Must be called on the main thread.
     nsecs_t previousFramePresentTime();
 
-    // Populates the expected present time for this frame. For negative offsets, performs a
+    // Calculates the expected present time for this frame. For negative offsets, performs a
     // correction using the predicted vsync for the next frame instead.
-    void populateExpectedPresentTime();
+    nsecs_t calculateExpectedPresentTime(nsecs_t now) const;
 
     /*
      * Display identification
@@ -947,8 +941,7 @@
     void dumpDisplayIdentificationData(std::string& result) const;
     void dumpRawDisplayIdentificationData(const DumpArgs&, std::string& result) const;
     void dumpWideColorInfo(std::string& result) const;
-    LayersProto dumpDrawingStateProto(uint32_t traceFlags = SurfaceTracing::TRACE_ALL,
-                                      const sp<const DisplayDevice>& displayDevice = nullptr) const;
+    LayersProto dumpDrawingStateProto(uint32_t traceFlags) const;
     void dumpOffscreenLayersProto(LayersProto& layersProto,
                                   uint32_t traceFlags = SurfaceTracing::TRACE_ALL) const;
     // Dumps state from HW Composer
@@ -956,7 +949,6 @@
     LayersProto dumpProtoFromMainThread(uint32_t traceFlags = SurfaceTracing::TRACE_ALL)
             EXCLUDES(mStateLock);
     void dumpOffscreenLayers(std::string& result) EXCLUDES(mStateLock);
-    void withTracingLock(std::function<void()> operation) REQUIRES(mStateLock);
 
     bool isLayerTripleBufferingDisabled() const {
         return this->mLayerTripleBufferingDisabled;
@@ -998,9 +990,6 @@
     SortedVector<sp<Layer>> mLayersPendingRemoval;
     bool mTraversalNeededMainThread = false;
 
-    // guards access to the mDrawing state if tracing is enabled.
-    mutable std::mutex mDrawingStateLock;
-
     // global color transform states
     Daltonizer mDaltonizer;
     float mGlobalSaturationFactor = 1.0f;
@@ -1052,8 +1041,8 @@
     BootStage mBootStage = BootStage::BOOTLOADER;
 
     struct HotplugEvent {
-        hwc2_display_t hwcDisplayId;
-        HWC2::Connection connection = HWC2::Connection::Invalid;
+        hal::HWDisplayId hwcDisplayId;
+        hal::Connection connection = hal::Connection::INVALID;
     };
     // protected by mStateLock
     std::vector<HotplugEvent> mPendingHotplugEvents;
@@ -1075,10 +1064,13 @@
     bool mPropagateBackpressure = true;
     bool mPropagateBackpressureClientComposition = false;
     std::unique_ptr<SurfaceInterceptor> mInterceptor;
+
     SurfaceTracing mTracing{*this};
+    std::mutex mTracingLock;
     bool mTracingEnabled = false;
     bool mAddCompositionStateToTrace = false;
-    bool mTracingEnabledChanged GUARDED_BY(mStateLock) = false;
+    std::atomic<bool> mTracingEnabledChanged = false;
+
     const std::shared_ptr<TimeStats> mTimeStats;
     const std::unique_ptr<FrameTracer> mFrameTracer;
     bool mUseHwcVirtualDisplays = false;
@@ -1225,7 +1217,7 @@
     // below flags are set by main thread only
     TracedOrdinal<bool> mDesiredActiveConfigChanged
             GUARDED_BY(mActiveConfigLock) = {"DesiredActiveConfigChanged", false};
-    bool mCheckPendingFence = false;
+    bool mSetActiveConfigPending = false;
 
     bool mLumaSampling = true;
     sp<RegionSamplingThread> mRegionSamplingThread;
@@ -1268,20 +1260,17 @@
     std::unordered_set<Layer*> mOffscreenLayers;
 
     // Flags to capture the state of Vsync in HWC
-    HWC2::Vsync mHWCVsyncState = HWC2::Vsync::Disable;
-    HWC2::Vsync mHWCVsyncPendingState = HWC2::Vsync::Disable;
+    hal::Vsync mHWCVsyncState = hal::Vsync::DISABLE;
+    hal::Vsync mHWCVsyncPendingState = hal::Vsync::DISABLE;
 
     // Fields tracking the current jank event: when it started and how many
     // janky frames there are.
     nsecs_t mMissedFrameJankStart = 0;
     int32_t mMissedFrameJankCount = 0;
 
-    // See updateInputWindowInfo() for details
-    std::atomic<bool> mInputDirty = true;
-    void dirtyInput() { mInputDirty = true; }
-    bool inputDirty() { return mInputDirty; }
-
     int mFrameRateFlexibilityTokenCount = 0;
+
+    sp<IBinder> mDebugFrameRateFlexibilityToken;
 };
 
 } // namespace android
diff --git a/services/surfaceflinger/SurfaceTracing.cpp b/services/surfaceflinger/SurfaceTracing.cpp
index f0b895d..d84ce69 100644
--- a/services/surfaceflinger/SurfaceTracing.cpp
+++ b/services/surfaceflinger/SurfaceTracing.cpp
@@ -33,7 +33,7 @@
 namespace android {
 
 SurfaceTracing::SurfaceTracing(SurfaceFlinger& flinger)
-      : mFlinger(flinger), mSfLock(flinger.mDrawingStateLock) {}
+      : mFlinger(flinger), mSfLock(flinger.mTracingLock) {}
 
 void SurfaceTracing::mainLoop() {
     bool enabled = addFirstEntry();
@@ -44,21 +44,19 @@
 }
 
 bool SurfaceTracing::addFirstEntry() {
-    const auto displayDevice = mFlinger.getDefaultDisplayDevice();
     LayersTraceProto entry;
     {
         std::scoped_lock lock(mSfLock);
-        entry = traceLayersLocked("tracing.enable", displayDevice);
+        entry = traceLayersLocked("tracing.enable");
     }
     return addTraceToBuffer(entry);
 }
 
 LayersTraceProto SurfaceTracing::traceWhenNotified() {
-    const auto displayDevice = mFlinger.getDefaultDisplayDevice();
     std::unique_lock<std::mutex> lock(mSfLock);
     mCanStartTrace.wait(lock);
     android::base::ScopedLockAssertion assumeLock(mSfLock);
-    LayersTraceProto entry = traceLayersLocked(mWhere, displayDevice);
+    LayersTraceProto entry = traceLayersLocked(mWhere);
     mTracingInProgress = false;
     mMissedTraceEntries = 0;
     lock.unlock();
@@ -126,15 +124,17 @@
     }
 }
 
-void SurfaceTracing::enable() {
+bool SurfaceTracing::enable() {
     std::scoped_lock lock(mTraceLock);
 
     if (mEnabled) {
-        return;
+        return false;
     }
+
     mBuffer.reset(mBufferSize);
     mEnabled = true;
     mThread = std::thread(&SurfaceTracing::mainLoop, this);
+    return true;
 }
 
 status_t SurfaceTracing::writeToFile() {
@@ -176,14 +176,13 @@
     mTraceFlags = flags;
 }
 
-LayersTraceProto SurfaceTracing::traceLayersLocked(const char* where,
-                                                   const sp<const DisplayDevice>& displayDevice) {
+LayersTraceProto SurfaceTracing::traceLayersLocked(const char* where) {
     ATRACE_CALL();
 
     LayersTraceProto entry;
     entry.set_elapsed_realtime_nanos(elapsedRealtimeNano());
     entry.set_where(where);
-    LayersProto layers(mFlinger.dumpDrawingStateProto(mTraceFlags, displayDevice));
+    LayersProto layers(mFlinger.dumpDrawingStateProto(mTraceFlags));
 
     if (flagIsSetLocked(SurfaceTracing::TRACE_EXTRA)) {
         mFlinger.dumpOffscreenLayersProto(layers);
diff --git a/services/surfaceflinger/SurfaceTracing.h b/services/surfaceflinger/SurfaceTracing.h
index e90fc4d..f208eb8 100644
--- a/services/surfaceflinger/SurfaceTracing.h
+++ b/services/surfaceflinger/SurfaceTracing.h
@@ -27,8 +27,6 @@
 #include <queue>
 #include <thread>
 
-#include "DisplayDevice.h"
-
 using namespace android::surfaceflinger;
 
 namespace android {
@@ -44,7 +42,7 @@
 class SurfaceTracing {
 public:
     explicit SurfaceTracing(SurfaceFlinger& flinger);
-    void enable();
+    bool enable();
     bool disable();
     status_t writeToFile();
     bool isEnabled() const;
@@ -92,9 +90,7 @@
     void mainLoop();
     bool addFirstEntry();
     LayersTraceProto traceWhenNotified();
-    LayersTraceProto traceLayersLocked(const char* where,
-                                       const sp<const DisplayDevice>& displayDevice)
-            REQUIRES(mSfLock);
+    LayersTraceProto traceLayersLocked(const char* where) REQUIRES(mSfLock);
 
     // Returns true if trace is enabled.
     bool addTraceToBuffer(LayersTraceProto& entry);
diff --git a/services/surfaceflinger/TimeStats/Android.bp b/services/surfaceflinger/TimeStats/Android.bp
index d27fbb4..3901757 100644
--- a/services/surfaceflinger/TimeStats/Android.bp
+++ b/services/surfaceflinger/TimeStats/Android.bp
@@ -4,6 +4,7 @@
         "TimeStats.cpp",
     ],
     shared_libs: [
+        "android.hardware.graphics.composer@2.4",
         "libbase",
         "libcutils",
         "liblog",
diff --git a/services/surfaceflinger/TimeStats/TimeStats.cpp b/services/surfaceflinger/TimeStats/TimeStats.cpp
index 606e137..37194c6 100644
--- a/services/surfaceflinger/TimeStats/TimeStats.cpp
+++ b/services/surfaceflinger/TimeStats/TimeStats.cpp
@@ -290,6 +290,15 @@
     mTimeStats.refreshRateSwitches++;
 }
 
+void TimeStats::incrementCompositionStrategyChanges() {
+    if (!mEnabled.load()) return;
+
+    ATRACE_CALL();
+
+    std::lock_guard<std::mutex> lock(mMutex);
+    mTimeStats.compositionStrategyChanges++;
+}
+
 void TimeStats::recordDisplayEventConnectionCount(int32_t count) {
     if (!mEnabled.load()) return;
 
@@ -312,7 +321,7 @@
     if (!mEnabled.load()) return;
 
     std::lock_guard<std::mutex> lock(mMutex);
-    if (mPowerTime.powerMode == HWC_POWER_MODE_NORMAL) {
+    if (mPowerTime.powerMode == PowerMode::ON) {
         mTimeStats.frameDuration.insert(msBetween(startTime, endTime));
     }
 }
@@ -683,12 +692,13 @@
     int64_t elapsedTime = (curTime - mPowerTime.prevTime) / 1000000;
 
     switch (mPowerTime.powerMode) {
-        case HWC_POWER_MODE_NORMAL:
+        case PowerMode::ON:
             mTimeStats.displayOnTime += elapsedTime;
             break;
-        case HWC_POWER_MODE_OFF:
-        case HWC_POWER_MODE_DOZE:
-        case HWC_POWER_MODE_DOZE_SUSPEND:
+        case PowerMode::OFF:
+        case PowerMode::DOZE:
+        case PowerMode::DOZE_SUSPEND:
+        case PowerMode::ON_SUSPEND:
         default:
             break;
     }
@@ -696,7 +706,7 @@
     mPowerTime.prevTime = curTime;
 }
 
-void TimeStats::setPowerMode(int32_t powerMode) {
+void TimeStats::setPowerMode(PowerMode powerMode) {
     if (!mEnabled.load()) {
         std::lock_guard<std::mutex> lock(mMutex);
         mPowerTime.powerMode = powerMode;
@@ -784,8 +794,8 @@
         return;
     }
 
-    if (mPowerTime.powerMode != HWC_POWER_MODE_NORMAL) {
-        // Try flushing the last present fence on HWC_POWER_MODE_NORMAL.
+    if (mPowerTime.powerMode != PowerMode::ON) {
+        // Try flushing the last present fence on PowerMode::ON.
         flushAvailableGlobalRecordsToStatsLocked();
         mGlobalRecord.presentFences.clear();
         mGlobalRecord.prevPresentTime = 0;
@@ -844,6 +854,7 @@
     mTimeStats.clientCompositionFrames = 0;
     mTimeStats.clientCompositionReusedFrames = 0;
     mTimeStats.refreshRateSwitches = 0;
+    mTimeStats.compositionStrategyChanges = 0;
     mTimeStats.displayEventConnectionsCount = 0;
     mTimeStats.displayOnTime = 0;
     mTimeStats.presentToPresent.hist.clear();
diff --git a/services/surfaceflinger/TimeStats/TimeStats.h b/services/surfaceflinger/TimeStats/TimeStats.h
index 806b47e..8de5d0c 100644
--- a/services/surfaceflinger/TimeStats/TimeStats.h
+++ b/services/surfaceflinger/TimeStats/TimeStats.h
@@ -16,7 +16,15 @@
 
 #pragma once
 
-#include <hardware/hwcomposer_defs.h>
+// TODO(b/129481165): remove the #pragma below and fix conversion issues
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wconversion"
+
+#include <android/hardware/graphics/composer/2.4/IComposerClient.h>
+
+// TODO(b/129481165): remove the #pragma below and fix conversion issues
+#pragma clang diagnostic pop // ignored "-Wconversion"
+
 #include <stats_event.h>
 #include <stats_pull_atom_callback.h>
 #include <statslog.h>
@@ -54,6 +62,10 @@
     virtual void incrementClientCompositionReusedFrames() = 0;
     // Increments the number of times the display refresh rate changed.
     virtual void incrementRefreshRateSwitches() = 0;
+    // Increments the number of changes in composition strategy
+    // The intention is to reflect the number of changes between hwc and gpu
+    // composition, where "gpu composition" may also include mixed composition.
+    virtual void incrementCompositionStrategyChanges() = 0;
     // Records the most up-to-date count of display event connections.
     // The stored count will be the maximum ever recoded.
     virtual void recordDisplayEventConnectionCount(int32_t count) = 0;
@@ -101,7 +113,8 @@
     // If SF skips or rejects a buffer, remove the corresponding TimeRecord.
     virtual void removeTimeRecord(int32_t layerId, uint64_t frameNumber) = 0;
 
-    virtual void setPowerMode(int32_t powerMode) = 0;
+    virtual void setPowerMode(
+            hardware::graphics::composer::V2_4::IComposerClient::PowerMode powerMode) = 0;
     // Source of truth is RefrehRateStats.
     virtual void recordRefreshRate(uint32_t fps, nsecs_t duration) = 0;
     virtual void setPresentFenceGlobal(const std::shared_ptr<FenceTime>& presentFence) = 0;
@@ -110,6 +123,8 @@
 namespace impl {
 
 class TimeStats : public android::TimeStats {
+    using PowerMode = android::hardware::graphics::composer::V2_4::IComposerClient::PowerMode;
+
     struct FrameTime {
         uint64_t frameNumber = 0;
         nsecs_t postTime = 0;
@@ -140,7 +155,7 @@
     };
 
     struct PowerTime {
-        int32_t powerMode = HWC_POWER_MODE_OFF;
+        PowerMode powerMode = PowerMode::OFF;
         nsecs_t prevTime = 0;
     };
 
@@ -218,6 +233,7 @@
     void incrementClientCompositionFrames() override;
     void incrementClientCompositionReusedFrames() override;
     void incrementRefreshRateSwitches() override;
+    void incrementCompositionStrategyChanges() override;
     void recordDisplayEventConnectionCount(int32_t count) override;
 
     void recordFrameDuration(nsecs_t startTime, nsecs_t endTime) override;
@@ -242,7 +258,8 @@
     // If SF skips or rejects a buffer, remove the corresponding TimeRecord.
     void removeTimeRecord(int32_t layerId, uint64_t frameNumber) override;
 
-    void setPowerMode(int32_t powerMode) override;
+    void setPowerMode(
+            hardware::graphics::composer::V2_4::IComposerClient::PowerMode powerMode) override;
     // Source of truth is RefrehRateStats.
     void recordRefreshRate(uint32_t fps, nsecs_t duration) override;
     void setPresentFenceGlobal(const std::shared_ptr<FenceTime>& presentFence) override;
diff --git a/services/surfaceflinger/TimeStats/timestatsproto/TimeStatsHelper.cpp b/services/surfaceflinger/TimeStats/timestatsproto/TimeStatsHelper.cpp
index 5305de9..c90b1b8 100644
--- a/services/surfaceflinger/TimeStats/timestatsproto/TimeStatsHelper.cpp
+++ b/services/surfaceflinger/TimeStats/timestatsproto/TimeStatsHelper.cpp
@@ -106,6 +106,7 @@
     StringAppendF(&result, "clientCompositionFrames = %d\n", clientCompositionFrames);
     StringAppendF(&result, "clientCompositionReusedFrames = %d\n", clientCompositionReusedFrames);
     StringAppendF(&result, "refreshRateSwitches = %d\n", refreshRateSwitches);
+    StringAppendF(&result, "compositionStrategyChanges = %d\n", compositionStrategyChanges);
     StringAppendF(&result, "displayOnTime = %" PRId64 " ms\n", displayOnTime);
     StringAppendF(&result, "displayConfigStats is as below:\n");
     for (const auto& [fps, duration] : refreshRateStats) {
diff --git a/services/surfaceflinger/TimeStats/timestatsproto/include/timestatsproto/TimeStatsHelper.h b/services/surfaceflinger/TimeStats/timestatsproto/include/timestatsproto/TimeStatsHelper.h
index afb98e0..0c75f96 100644
--- a/services/surfaceflinger/TimeStats/timestatsproto/include/timestatsproto/TimeStatsHelper.h
+++ b/services/surfaceflinger/TimeStats/timestatsproto/include/timestatsproto/TimeStatsHelper.h
@@ -63,6 +63,7 @@
         int32_t clientCompositionFrames = 0;
         int32_t clientCompositionReusedFrames = 0;
         int32_t refreshRateSwitches = 0;
+        int32_t compositionStrategyChanges = 0;
         int32_t displayEventConnectionsCount = 0;
         int64_t displayOnTime = 0;
         Histogram presentToPresent;
diff --git a/services/surfaceflinger/tests/LayerTransactionTest.h b/services/surfaceflinger/tests/LayerTransactionTest.h
index 40ec502..f3e11d8 100644
--- a/services/surfaceflinger/tests/LayerTransactionTest.h
+++ b/services/surfaceflinger/tests/LayerTransactionTest.h
@@ -19,7 +19,6 @@
 #include <gtest/gtest.h>
 #include <gui/ISurfaceComposer.h>
 #include <gui/SurfaceComposerClient.h>
-#include <hardware/hwcomposer_defs.h>
 #include <private/gui/ComposerService.h>
 #include <ui/DisplayConfig.h>
 
diff --git a/services/surfaceflinger/tests/fakehwc/Android.bp b/services/surfaceflinger/tests/fakehwc/Android.bp
index ff403f6..2861013 100644
--- a/services/surfaceflinger/tests/fakehwc/Android.bp
+++ b/services/surfaceflinger/tests/fakehwc/Android.bp
@@ -23,7 +23,6 @@
         "libcutils",
         "libfmq",
         "libgui",
-        "libhardware",
         "libhidlbase",
         "liblayers_proto",
         "liblog",
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h b/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h
index 5240b72..600e765 100644
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h
+++ b/services/surfaceflinger/tests/fakehwc/FakeComposerClient.h
@@ -16,24 +16,16 @@
 
 #pragma once
 
-#define HWC2_USE_CPP11
-#define HWC2_INCLUDE_STRINGIFICATION
+#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>
-#undef HWC2_USE_CPP11
-#undef HWC2_INCLUDE_STRINGIFICATION
-#include "RenderState.h"
-
-#include "MockComposerHal.h"
-
-// Needed for display type/ID enums
-#include <hardware/hwcomposer_defs.h>
-
 #include <utils/Condition.h>
 
-#include <chrono>
+#include "MockComposerHal.h"
+#include "RenderState.h"
 
 using namespace android::hardware::graphics::common;
 using namespace android::hardware::graphics::composer;
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h b/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h
index 09a2a89..383a111 100644
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h
+++ b/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.h
@@ -19,11 +19,7 @@
 #include "FakeComposerClient.h"
 
 #include <gui/SurfaceComposerClient.h>
-
-#include <hardware/hwcomposer_defs.h>
-
 #include <log/log.h>
-
 #include <gtest/gtest.h>
 
 // clang-format off
diff --git a/services/surfaceflinger/tests/fakehwc/RenderState.h b/services/surfaceflinger/tests/fakehwc/RenderState.h
index 0059289..40193f2 100644
--- a/services/surfaceflinger/tests/fakehwc/RenderState.h
+++ b/services/surfaceflinger/tests/fakehwc/RenderState.h
@@ -16,8 +16,6 @@
 
 #pragma once
 
-#include <hardware/hwcomposer2.h>
-
 #include <vector>
 
 namespace sftest {
diff --git a/services/surfaceflinger/tests/hwc2/Android.bp b/services/surfaceflinger/tests/hwc2/Android.bp
deleted file mode 100644
index 1c8e396..0000000
--- a/services/surfaceflinger/tests/hwc2/Android.bp
+++ /dev/null
@@ -1,55 +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.
-
-cc_test {
-    name: "test-hwc2",
-    defaults: ["surfaceflinger_defaults"],
-    cflags: [
-        "-DEGL_EGLEXT_PROTOTYPES",
-        "-DGL_GLEXT_PROTOTYPES",
-        "-fno-builtin",
-        "-fstack-protector-all",
-        "-g",
-        "-Wextra",
-    ],
-    srcs: [
-        "Hwc2Test.cpp",
-        "Hwc2TestProperties.cpp",
-        "Hwc2TestLayer.cpp",
-        "Hwc2TestLayers.cpp",
-        "Hwc2TestBuffer.cpp",
-        "Hwc2TestClientTarget.cpp",
-        "Hwc2TestVirtualDisplay.cpp",
-        "Hwc2TestPixelComparator.cpp",
-    ],
-    static_libs: [
-        "libadf",
-        "libadfhwc",
-        "libbase",
-        "libmath",
-    ],
-    shared_libs: [
-        "android.hardware.graphics.common@1.1",
-        "libcutils",
-        "libEGL",
-        "libGLESv2",
-        "libgui",
-        "libhardware",
-        "libhwui",
-        "liblog",
-        "libsync",
-        "libui",
-        "libutils",
-    ],
-}
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp b/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp
deleted file mode 100644
index f9a1fe9..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2Test.cpp
+++ /dev/null
@@ -1,4779 +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"
-
-#include <array>
-#include <unordered_set>
-#include <unordered_map>
-#include <gtest/gtest.h>
-#include <dlfcn.h>
-#include <android-base/unique_fd.h>
-#include <hardware/hardware.h>
-#include <sync/sync.h>
-#include <ui/GraphicTypes.h>
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-#include "Hwc2TestLayer.h"
-#include "Hwc2TestLayers.h"
-#include "Hwc2TestClientTarget.h"
-#include "Hwc2TestVirtualDisplay.h"
-
-using android::ui::ColorMode;
-using android::ui::Dataspace;
-
-void hwc2TestHotplugCallback(hwc2_callback_data_t callbackData,
-        hwc2_display_t display, int32_t connected);
-void hwc2TestVsyncCallback(hwc2_callback_data_t callbackData,
-        hwc2_display_t display, int64_t timestamp);
-
-class Hwc2Test : public testing::Test {
-public:
-
-    virtual void SetUp()
-    {
-        hw_module_t const* hwc2Module;
-
-        int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &hwc2Module);
-        ASSERT_GE(err, 0) << "failed to get hwc hardware module: "
-                << strerror(-err);
-
-        /* The following method will fail if you have not run
-         * "adb shell stop" */
-        err = hwc2_open(hwc2Module, &mHwc2Device);
-        ASSERT_GE(err, 0) << "failed to open hwc hardware module: "
-                << strerror(-err);
-
-        populateDisplays();
-    }
-
-    virtual void TearDown()
-    {
-
-        for (auto itr = mLayers.begin(); itr != mLayers.end();) {
-            hwc2_display_t display = itr->first;
-            hwc2_layer_t layer = itr->second;
-            itr++;
-            /* Destroys and removes the layer from mLayers */
-            destroyLayer(display, layer);
-        }
-
-        for (auto itr = mActiveDisplays.begin(); itr != mActiveDisplays.end();) {
-            hwc2_display_t display = *itr;
-            itr++;
-            /* Sets power mode to off and removes the display from
-             * mActiveDisplays */
-            setPowerMode(display, HWC2_POWER_MODE_OFF);
-        }
-
-        for (auto itr = mVirtualDisplays.begin(); itr != mVirtualDisplays.end();) {
-            hwc2_display_t display = *itr;
-            itr++;
-            /* Destroys virtual displays */
-            destroyVirtualDisplay(display);
-        }
-
-        if (mHwc2Device)
-            hwc2_close(mHwc2Device);
-    }
-
-    void registerCallback(hwc2_callback_descriptor_t descriptor,
-            hwc2_callback_data_t callbackData, hwc2_function_pointer_t pointer,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_REGISTER_CALLBACK>(
-                getFunction(HWC2_FUNCTION_REGISTER_CALLBACK));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, descriptor,
-                callbackData, pointer));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to register callback";
-        }
-    }
-
-    void getDisplayType(hwc2_display_t display, hwc2_display_type_t* outType,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_DISPLAY_TYPE>(
-                getFunction(HWC2_FUNCTION_GET_DISPLAY_TYPE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                    reinterpret_cast<int32_t*>(outType)));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get display type";
-        }
-    }
-
-    /* If the populateDisplays function is still receiving displays and the
-     * display is connected, the display handle is stored in mDisplays. */
-    void hotplugCallback(hwc2_display_t display, int32_t connected)
-    {
-        std::lock_guard<std::mutex> lock(mHotplugMutex);
-
-        if (mHotplugStatus != Hwc2TestHotplugStatus::Receiving)
-            return;
-
-        if (connected == HWC2_CONNECTION_CONNECTED)
-            mDisplays.insert(display);
-
-        mHotplugCv.notify_all();
-    }
-
-    void createLayer(hwc2_display_t display, hwc2_layer_t* outLayer,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_CREATE_LAYER>(
-                getFunction(HWC2_FUNCTION_CREATE_LAYER));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                outLayer));
-
-        if (err == HWC2_ERROR_NONE)
-            mLayers.insert(std::make_pair(display, *outLayer));
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to create layer";
-        }
-    }
-
-    void destroyLayer(hwc2_display_t display, hwc2_layer_t layer,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_DESTROY_LAYER>(
-                getFunction(HWC2_FUNCTION_DESTROY_LAYER));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer));
-
-        if (err == HWC2_ERROR_NONE)
-            mLayers.erase(std::make_pair(display, layer));
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to destroy layer "
-                    << layer;
-        }
-    }
-
-    void getDisplayAttribute(hwc2_display_t display, hwc2_config_t config,
-            hwc2_attribute_t attribute, int32_t* outValue,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_DISPLAY_ATTRIBUTE>(
-                getFunction(HWC2_FUNCTION_GET_DISPLAY_ATTRIBUTE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, config,
-                attribute, outValue));
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get display attribute "
-                    << getAttributeName(attribute) << " for config " << config;
-        }
-    }
-
-    void getDisplayConfigs(hwc2_display_t display,
-            std::vector<hwc2_config_t>* outConfigs,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_DISPLAY_CONFIGS>(
-                getFunction(HWC2_FUNCTION_GET_DISPLAY_CONFIGS));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t numConfigs = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                &numConfigs, nullptr));
-
-        if (err == HWC2_ERROR_NONE) {
-            outConfigs->resize(numConfigs);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                    &numConfigs, outConfigs->data()));
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get configs for"
-                    " display " << display;
-        }
-    }
-
-    void getActiveConfig(hwc2_display_t display, hwc2_config_t* outConfig,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_ACTIVE_CONFIG>(
-                getFunction(HWC2_FUNCTION_GET_ACTIVE_CONFIG));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                outConfig));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get active config on"
-                    " display " << display;
-        }
-    }
-
-    void setActiveConfig(hwc2_display_t display, hwc2_config_t config,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_ACTIVE_CONFIG>(
-                getFunction(HWC2_FUNCTION_SET_ACTIVE_CONFIG));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, config));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set active config "
-                    << config;
-        }
-    }
-
-    void getDozeSupport(hwc2_display_t display, int32_t* outSupport,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_DOZE_SUPPORT>(
-                getFunction(HWC2_FUNCTION_GET_DOZE_SUPPORT));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                outSupport));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get doze support on"
-                    " display " << display;
-        }
-    }
-
-    void setPowerMode(hwc2_display_t display, hwc2_power_mode_t mode,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_POWER_MODE>(
-                getFunction(HWC2_FUNCTION_SET_POWER_MODE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                mode));
-        if (outErr) {
-            *outErr = err;
-            if (err != HWC2_ERROR_NONE)
-                return;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set power mode "
-                    << getPowerModeName(mode) << " on display " << display;
-        }
-
-        if (mode == HWC2_POWER_MODE_OFF) {
-            mActiveDisplays.erase(display);
-        } else {
-            mActiveDisplays.insert(display);
-        }
-    }
-
-    void setVsyncEnabled(hwc2_display_t display, hwc2_vsync_t enabled,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_VSYNC_ENABLED>(
-                getFunction(HWC2_FUNCTION_SET_VSYNC_ENABLED));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                enabled));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set vsync enabled "
-                    << getVsyncName(enabled);
-        }
-    }
-
-    void vsyncCallback(hwc2_display_t display, int64_t timestamp)
-    {
-        std::lock_guard<std::mutex> lock(mVsyncMutex);
-        mVsyncDisplay = display;
-        mVsyncTimestamp = timestamp;
-        mVsyncCv.notify_all();
-    }
-
-    void getDisplayName(hwc2_display_t display, std::string* outName,
-                hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_DISPLAY_NAME>(
-                getFunction(HWC2_FUNCTION_GET_DISPLAY_NAME));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t size = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, &size,
-                nullptr));
-
-        if (err == HWC2_ERROR_NONE) {
-            std::vector<char> name(size);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, &size,
-                    name.data()));
-
-            outName->assign(name.data());
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get display name for "
-                    << display;
-        }
-    }
-
-    void setLayerCompositionType(hwc2_display_t display, hwc2_layer_t layer,
-            hwc2_composition_t composition, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_COMPOSITION_TYPE>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_COMPOSITION_TYPE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                composition));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer composition"
-                    " type " << getCompositionName(composition);
-        }
-    }
-
-    void setCursorPosition(hwc2_display_t display, hwc2_layer_t layer,
-            int32_t x, int32_t y, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_CURSOR_POSITION>(
-                getFunction(HWC2_FUNCTION_SET_CURSOR_POSITION));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer, x,
-                y));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_TRUE((err == HWC2_ERROR_NONE) ||
-                (err == HWC2_ERROR_BAD_LAYER)) <<
-                "failed to set cursor position";
-        }
-    }
-
-    void setLayerBlendMode(hwc2_display_t display, hwc2_layer_t layer,
-            hwc2_blend_mode_t mode, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_BLEND_MODE>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_BLEND_MODE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                mode));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer blend mode "
-                    << getBlendModeName(mode);
-        }
-    }
-
-    void setLayerBuffer(hwc2_display_t display, hwc2_layer_t layer,
-            buffer_handle_t buffer, int32_t acquireFence,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_BUFFER>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_BUFFER));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                buffer, acquireFence));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer buffer";
-        }
-    }
-
-    void setLayerColor(hwc2_display_t display, hwc2_layer_t layer,
-            hwc_color_t color, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_COLOR>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_COLOR));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                color));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer color";
-        }
-    }
-
-    void setLayerDataspace(hwc2_display_t display, hwc2_layer_t layer,
-            Dataspace dataspace, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_DATASPACE>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_DATASPACE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                layer, static_cast<int>(dataspace)));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer dataspace";
-        }
-    }
-
-    void setLayerDisplayFrame(hwc2_display_t display, hwc2_layer_t layer,
-            const hwc_rect_t& displayFrame, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_DISPLAY_FRAME>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_DISPLAY_FRAME));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                displayFrame));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer display"
-                    " frame";
-        }
-    }
-
-    void setLayerPlaneAlpha(hwc2_display_t display, hwc2_layer_t layer,
-            float alpha, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_PLANE_ALPHA>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_PLANE_ALPHA));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                alpha));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer plane alpha "
-                    << alpha;
-        }
-    }
-
-    void setLayerSourceCrop(hwc2_display_t display, hwc2_layer_t layer,
-            const hwc_frect_t& sourceCrop, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_SOURCE_CROP>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_SOURCE_CROP));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                sourceCrop));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer source crop";
-        }
-    }
-
-    void setLayerSurfaceDamage(hwc2_display_t display, hwc2_layer_t layer,
-            const hwc_region_t& surfaceDamage, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_SURFACE_DAMAGE>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_SURFACE_DAMAGE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                surfaceDamage));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer surface"
-                    " damage";
-        }
-    }
-
-    void setLayerTransform(hwc2_display_t display, hwc2_layer_t layer,
-            hwc_transform_t transform, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_TRANSFORM>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_TRANSFORM));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                transform));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer transform "
-                    << getTransformName(transform);
-        }
-    }
-
-    void setLayerVisibleRegion(hwc2_display_t display, hwc2_layer_t layer,
-            const hwc_region_t& visibleRegion, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_VISIBLE_REGION>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_VISIBLE_REGION));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                visibleRegion));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer visible"
-                    " region";
-        }
-    }
-
-    void setLayerZOrder(hwc2_display_t display, hwc2_layer_t layer,
-            uint32_t zOrder, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_LAYER_Z_ORDER>(
-                getFunction(HWC2_FUNCTION_SET_LAYER_Z_ORDER));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, layer,
-                zOrder));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set layer z order "
-                    << zOrder;
-        }
-    }
-
-    void validateDisplay(hwc2_display_t display, uint32_t* outNumTypes,
-            uint32_t* outNumRequests, hwc2_error_t* outErr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_VALIDATE_DISPLAY>(
-                getFunction(HWC2_FUNCTION_VALIDATE_DISPLAY));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        *outErr = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                outNumTypes, outNumRequests));
-    }
-
-    void validateDisplay(hwc2_display_t display, uint32_t* outNumTypes,
-            uint32_t* outNumRequests, bool* outHasChanges)
-    {
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        EXPECT_NO_FATAL_FAILURE(validateDisplay(display, outNumTypes,
-                outNumRequests, &err));
-
-        if (err != HWC2_ERROR_HAS_CHANGES) {
-            *outHasChanges = false;
-            EXPECT_EQ(err, HWC2_ERROR_NONE) << "failed to validate display";
-        } else {
-            *outHasChanges = true;
-        }
-    }
-
-    void getDisplayRequests(hwc2_display_t display,
-            hwc2_display_request_t* outDisplayRequests,
-            std::vector<hwc2_layer_t>* outLayers,
-            std::vector<hwc2_layer_request_t>* outLayerRequests,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_DISPLAY_REQUESTS>(
-                getFunction(HWC2_FUNCTION_GET_DISPLAY_REQUESTS));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t numElements = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                reinterpret_cast<int32_t*>(outDisplayRequests), &numElements,
-                nullptr, nullptr));
-
-        if (err == HWC2_ERROR_NONE && numElements > 0) {
-            outLayers->resize(numElements);
-            outLayerRequests->resize(numElements);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                    reinterpret_cast<int32_t*>(outDisplayRequests), &numElements,
-                    reinterpret_cast<uint64_t*>(outLayers->data()),
-                    reinterpret_cast<int32_t*>(outLayerRequests->data())));
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get display requests";
-        }
-    }
-
-    void handleRequests(hwc2_display_t display,
-            const std::vector<hwc2_layer_t>& layers, uint32_t numRequests,
-            std::set<hwc2_layer_t>* outClearLayers = nullptr,
-            bool* outFlipClientTarget = nullptr)
-    {
-        hwc2_display_request_t displayRequest =
-                static_cast<hwc2_display_request_t>(0);
-        std::vector<hwc2_layer_t> requestedLayers;
-        std::vector<hwc2_layer_request_t> requests;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayRequests(display, &displayRequest,
-                &requestedLayers, &requests));
-
-        EXPECT_EQ(numRequests, requests.size()) << "validate returned "
-                << numRequests << " requests and get display requests returned "
-                << requests.size() << " requests";
-
-        for (size_t i = 0; i < requests.size(); i++) {
-            hwc2_layer_t requestedLayer = requestedLayers.at(i);
-            hwc2_layer_request_t request = requests.at(i);
-
-            EXPECT_EQ(std::count(layers.begin(), layers.end(), requestedLayer),
-                    1) << "get display requests returned an unknown layer";
-            EXPECT_NE(request, 0) << "returned empty request for layer "
-                    << requestedLayer;
-
-            if (outClearLayers && request
-                    == HWC2_LAYER_REQUEST_CLEAR_CLIENT_TARGET)
-                outClearLayers->insert(requestedLayer);
-        }
-
-        if (outFlipClientTarget)
-            *outFlipClientTarget = displayRequest
-                    & HWC2_DISPLAY_REQUEST_FLIP_CLIENT_TARGET;
-    }
-
-    void getChangedCompositionTypes(hwc2_display_t display,
-            std::vector<hwc2_layer_t>* outLayers,
-            std::vector<hwc2_composition_t>* outTypes,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_CHANGED_COMPOSITION_TYPES>(
-                getFunction(HWC2_FUNCTION_GET_CHANGED_COMPOSITION_TYPES));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t numElements = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                &numElements, nullptr, nullptr));
-
-        if (err == HWC2_ERROR_NONE && numElements > 0) {
-            outLayers->resize(numElements);
-            outTypes->resize(numElements);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                    &numElements, reinterpret_cast<uint64_t*>(outLayers->data()),
-                    reinterpret_cast<int32_t*>(outTypes->data())));
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get changed"
-                    " composition types";
-        }
-    }
-
-    void handleCompositionChanges(hwc2_display_t display,
-            const Hwc2TestLayers& testLayers,
-            const std::vector<hwc2_layer_t>& layers, uint32_t numTypes,
-            std::set<hwc2_layer_t>* outClientLayers = nullptr)
-    {
-        std::vector<hwc2_layer_t> changedLayers;
-        std::vector<hwc2_composition_t> types;
-
-        ASSERT_NO_FATAL_FAILURE(getChangedCompositionTypes(display,
-                &changedLayers, &types));
-
-        EXPECT_EQ(numTypes, types.size()) << "validate returned "
-                << numTypes << " types and get changed composition types"
-                " returned " << types.size() << " types";
-
-        for (size_t i = 0; i < types.size(); i++) {
-
-            auto layer = std::find(layers.begin(), layers.end(),
-                    changedLayers.at(i));
-
-            EXPECT_TRUE(layer != layers.end() || !testLayers.contains(*layer))
-                    << "get changed composition types returned an unknown layer";
-
-            hwc2_composition_t requestedType = testLayers.getComposition(*layer);
-            hwc2_composition_t returnedType = types.at(i);
-
-            EXPECT_NE(returnedType, HWC2_COMPOSITION_INVALID) << "get changed"
-                    " composition types returned invalid composition";
-
-            switch (requestedType) {
-            case HWC2_COMPOSITION_CLIENT:
-                EXPECT_TRUE(false) << getCompositionName(returnedType)
-                        << " cannot be changed";
-                break;
-            case HWC2_COMPOSITION_DEVICE:
-            case HWC2_COMPOSITION_SOLID_COLOR:
-                EXPECT_EQ(returnedType, HWC2_COMPOSITION_CLIENT)
-                        << "composition of type "
-                        << getCompositionName(requestedType)
-                        << " can only be changed to "
-                        << getCompositionName(HWC2_COMPOSITION_CLIENT);
-                break;
-            case HWC2_COMPOSITION_CURSOR:
-            case HWC2_COMPOSITION_SIDEBAND:
-                EXPECT_TRUE(returnedType == HWC2_COMPOSITION_CLIENT
-                        || returnedType == HWC2_COMPOSITION_DEVICE)
-                        << "composition of type "
-                        << getCompositionName(requestedType)
-                        << " can only be changed to "
-                        << getCompositionName(HWC2_COMPOSITION_CLIENT) << " or "
-                        << getCompositionName(HWC2_COMPOSITION_DEVICE);
-                break;
-            default:
-                EXPECT_TRUE(false) << "unknown type "
-                        << getCompositionName(requestedType);
-                break;
-            }
-
-            if (outClientLayers)
-                if (returnedType == HWC2_COMPOSITION_CLIENT)
-                    outClientLayers->insert(*layer);
-        }
-
-        if (outClientLayers) {
-            for (auto layer : layers) {
-                if (testLayers.getComposition(layer) == HWC2_COMPOSITION_CLIENT)
-                    outClientLayers->insert(layer);
-            }
-        }
-    }
-
-    void acceptDisplayChanges(hwc2_display_t display,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_ACCEPT_DISPLAY_CHANGES>(
-                getFunction(HWC2_FUNCTION_ACCEPT_DISPLAY_CHANGES));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to accept display changes";
-        }
-    }
-
-    void getClientTargetSupport(hwc2_display_t display, int32_t width,
-            int32_t height, android_pixel_format_t format,
-            Dataspace dataspace, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_CLIENT_TARGET_SUPPORT>(
-                getFunction(HWC2_FUNCTION_GET_CLIENT_TARGET_SUPPORT));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, width,
-                height, format, static_cast<int>(dataspace)));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get client target"
-                    " support";
-        }
-    }
-
-    void setClientTarget(hwc2_display_t display, buffer_handle_t handle,
-            int32_t acquireFence, Dataspace dataspace,
-            hwc_region_t damage, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_CLIENT_TARGET>(
-                getFunction(HWC2_FUNCTION_SET_CLIENT_TARGET));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, handle,
-                acquireFence, static_cast<int>(dataspace), damage));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set client target";
-        }
-    }
-
-    void presentDisplay(hwc2_display_t display, int32_t* outPresentFence,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_PRESENT_DISPLAY>(
-                getFunction(HWC2_FUNCTION_PRESENT_DISPLAY));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                outPresentFence));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to present display";
-        }
-    }
-
-    void getReleaseFences(hwc2_display_t display,
-            std::vector<hwc2_layer_t>* outLayers,
-            std::vector<int32_t>* outFences, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_RELEASE_FENCES>(
-                getFunction(HWC2_FUNCTION_GET_RELEASE_FENCES));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t numElements = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                &numElements, nullptr, nullptr));
-
-        if (err == HWC2_ERROR_NONE) {
-            outLayers->resize(numElements);
-            outFences->resize(numElements);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                    &numElements, outLayers->data(), outFences->data()));
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get release fences";
-        }
-    }
-
-    void getColorModes(hwc2_display_t display,
-            std::vector<ColorMode>* outColorModes,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_COLOR_MODES>(
-                getFunction(HWC2_FUNCTION_GET_COLOR_MODES));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t numColorModes = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                &numColorModes, nullptr));
-        if (err == HWC2_ERROR_NONE) {
-            outColorModes->resize(numColorModes);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                    &numColorModes,
-                    reinterpret_cast<int32_t*>(outColorModes->data())));
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get color modes for"
-                    " display " << display;
-        }
-    }
-
-    void setColorMode(hwc2_display_t display, ColorMode colorMode,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_COLOR_MODE>(
-                getFunction(HWC2_FUNCTION_SET_COLOR_MODE));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                static_cast<int32_t>(colorMode)));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set color mode "
-                    << static_cast<int>(colorMode);
-        }
-    }
-
-    void getHdrCapabilities(hwc2_display_t display,
-            std::vector<android_hdr_t>* outTypes, float* outMaxLuminance,
-            float* outMaxAverageLuminance, float* outMinLuminance,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_HDR_CAPABILITIES>(
-                getFunction(HWC2_FUNCTION_GET_HDR_CAPABILITIES));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t numTypes = 0;
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                &numTypes, nullptr, outMaxLuminance, outMaxAverageLuminance,
-                outMinLuminance));
-
-        if (err == HWC2_ERROR_NONE) {
-            outTypes->resize(numTypes);
-
-            err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, &numTypes,
-                    reinterpret_cast<int32_t*>(outTypes->data()), outMaxLuminance,
-                    outMaxAverageLuminance, outMinLuminance));
-        }
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to get hdr capabilities"
-                    " for display " << display;
-        }
-    }
-
-    void setColorTransform(hwc2_display_t display,
-            const std::array<float, 16>& matrix, android_color_transform_t hint,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_COLOR_TRANSFORM>(
-                getFunction(HWC2_FUNCTION_SET_COLOR_TRANSFORM));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display,
-                matrix.data(), hint));
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set color transform "
-                    << hint;
-        }
-    }
-
-    void createVirtualDisplay(uint32_t width, uint32_t height,
-            android_pixel_format_t* outFormat, hwc2_display_t* outDisplay,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_CREATE_VIRTUAL_DISPLAY>(
-                getFunction(HWC2_FUNCTION_CREATE_VIRTUAL_DISPLAY));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, width, height,
-                reinterpret_cast<int32_t*>(outFormat), outDisplay));
-
-        if (err == HWC2_ERROR_NONE)
-            mVirtualDisplays.insert(*outDisplay);
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to create virtual display";
-        }
-    }
-
-    void destroyVirtualDisplay(hwc2_display_t display,
-            hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_DESTROY_VIRTUAL_DISPLAY>(
-                getFunction(HWC2_FUNCTION_DESTROY_VIRTUAL_DISPLAY));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display));
-
-        if (err == HWC2_ERROR_NONE)
-            mVirtualDisplays.erase(display);
-
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to destroy virtual display";
-        }
-    }
-
-    void getMaxVirtualDisplayCount(uint32_t* outMaxCnt)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_GET_MAX_VIRTUAL_DISPLAY_COUNT>(
-                getFunction(HWC2_FUNCTION_GET_MAX_VIRTUAL_DISPLAY_COUNT));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        *outMaxCnt = pfn(mHwc2Device);
-    }
-
-    void setOutputBuffer(hwc2_display_t display, buffer_handle_t buffer,
-            int32_t releaseFence, hwc2_error_t* outErr = nullptr)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_SET_OUTPUT_BUFFER>(
-                getFunction(HWC2_FUNCTION_SET_OUTPUT_BUFFER));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        auto err = static_cast<hwc2_error_t>(pfn(mHwc2Device, display, buffer,
-                releaseFence));
-        if (outErr) {
-            *outErr = err;
-        } else {
-            ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to set output buffer";
-        }
-    }
-
-    void dump(std::string* outBuffer)
-    {
-        auto pfn = reinterpret_cast<HWC2_PFN_DUMP>(
-                getFunction(HWC2_FUNCTION_DUMP));
-        ASSERT_TRUE(pfn) << "failed to get function";
-
-        uint32_t size = 0;
-
-        pfn(mHwc2Device, &size, nullptr);
-
-        std::vector<char> buffer(size);
-
-        pfn(mHwc2Device, &size, buffer.data());
-
-        outBuffer->assign(buffer.data());
-    }
-
-    void getBadDisplay(hwc2_display_t* outDisplay)
-    {
-        for (hwc2_display_t display = 0; display < UINT64_MAX; display++) {
-            if (mDisplays.count(display) == 0) {
-                *outDisplay = display;
-                return;
-            }
-        }
-        ASSERT_TRUE(false) << "Unable to find bad display. UINT64_MAX displays"
-                " are registered. This should never happen.";
-    }
-
-    void waitForVsync(hwc2_display_t* outDisplay = nullptr,
-            int64_t* outTimestamp = nullptr)
-    {
-        std::unique_lock<std::mutex> lock(mVsyncMutex);
-        ASSERT_EQ(mVsyncCv.wait_for(lock, std::chrono::seconds(3)),
-                std::cv_status::no_timeout) << "timed out attempting to get"
-                " vsync callback";
-        if (outDisplay)
-            *outDisplay = mVsyncDisplay;
-        if (outTimestamp)
-            *outTimestamp = mVsyncTimestamp;
-    }
-
-    void enableVsync(hwc2_display_t display)
-    {
-        ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_VSYNC, this,
-                reinterpret_cast<hwc2_function_pointer_t>(
-                hwc2TestVsyncCallback)));
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE));
-    }
-
-    void disableVsync(hwc2_display_t display)
-    {
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-    }
-
-protected:
-    hwc2_function_pointer_t getFunction(hwc2_function_descriptor_t descriptor)
-    {
-        return mHwc2Device->getFunction(mHwc2Device, descriptor);
-    }
-
-    void getCapabilities(std::vector<hwc2_capability_t>* outCapabilities)
-    {
-        uint32_t num = 0;
-
-        mHwc2Device->getCapabilities(mHwc2Device, &num, nullptr);
-
-        outCapabilities->resize(num);
-
-        mHwc2Device->getCapabilities(mHwc2Device, &num,
-                reinterpret_cast<int32_t*>(outCapabilities->data()));
-    }
-
-    /* Registers a hotplug callback and waits for hotplug callbacks. This
-     * function will have no effect if called more than once. */
-    void populateDisplays()
-    {
-        /* Sets the hotplug status to receiving */
-        {
-            std::lock_guard<std::mutex> lock(mHotplugMutex);
-
-            if (mHotplugStatus != Hwc2TestHotplugStatus::Init)
-                return;
-            mHotplugStatus = Hwc2TestHotplugStatus::Receiving;
-        }
-
-        /* Registers the callback. This function call cannot be locked because
-         * a callback could happen on the same thread */
-        ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_HOTPLUG, this,
-                reinterpret_cast<hwc2_function_pointer_t>(
-                hwc2TestHotplugCallback)));
-
-        /* Waits for hotplug events. If a hotplug event has not come within 1
-         * second, stop waiting. */
-        std::unique_lock<std::mutex> lock(mHotplugMutex);
-
-        while (mHotplugCv.wait_for(lock, std::chrono::seconds(1)) !=
-                std::cv_status::timeout) { }
-
-        /* Sets the hotplug status to done. Future calls will have no effect */
-        mHotplugStatus = Hwc2TestHotplugStatus::Done;
-    }
-
-    /* NOTE: will create min(newlayerCnt, max supported layers) layers */
-    void createLayers(hwc2_display_t display,
-            std::vector<hwc2_layer_t>* outLayers, size_t newLayerCnt)
-    {
-        std::vector<hwc2_layer_t> newLayers;
-        hwc2_layer_t layer;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        for (size_t i = 0; i < newLayerCnt; i++) {
-
-            EXPECT_NO_FATAL_FAILURE(createLayer(display, &layer, &err));
-            if (err == HWC2_ERROR_NO_RESOURCES)
-                break;
-            if (err != HWC2_ERROR_NONE) {
-                newLayers.clear();
-                ASSERT_EQ(err, HWC2_ERROR_NONE) << "failed to create layer";
-            }
-            newLayers.push_back(layer);
-        }
-
-        *outLayers = std::move(newLayers);
-    }
-
-    void destroyLayers(hwc2_display_t display,
-            std::vector<hwc2_layer_t>&& layers)
-    {
-        for (hwc2_layer_t layer : layers) {
-            EXPECT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-        }
-    }
-
-    void getInvalidConfig(hwc2_display_t display, hwc2_config_t* outConfig)
-    {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        hwc2_config_t CONFIG_MAX = UINT32_MAX;
-
-        ASSERT_LE(configs.size() - 1, CONFIG_MAX) << "every config value"
-                " (2^32 values) has been taken which shouldn't happen";
-
-        hwc2_config_t config;
-        for (config = 0; config < CONFIG_MAX; config++) {
-            if (std::count(configs.begin(), configs.end(), config) == 0)
-                break;
-        }
-
-        *outConfig = config;
-    }
-
-    /* Calls a set property function from Hwc2Test to set a property value from
-     * Hwc2TestLayer to hwc2_layer_t on hwc2_display_t */
-    using TestLayerPropertyFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, hwc2_layer_t layer,
-            Hwc2TestLayer* testLayer, hwc2_error_t* outErr);
-
-    /* Calls a set property function from Hwc2Test to set property values from
-     * Hwc2TestLayers to hwc2_layer_t on hwc2_display_t */
-    using TestLayerPropertiesFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, hwc2_layer_t layer,
-            Hwc2TestLayers* testLayers);
-
-    /* Calls a set property function from Hwc2Test to set a bad property value
-     * on hwc2_layer_t on hwc2_display_t */
-    using TestLayerPropertyBadLayerFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, hwc2_layer_t layer,
-            Hwc2TestLayer* testLayer, hwc2_error_t* outErr);
-
-    /* Calls a set property function from Hwc2Test to set a bad property value
-     * on hwc2_layer_t on hwc2_display_t */
-    using TestLayerPropertyBadParameterFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, hwc2_layer_t layer, hwc2_error_t* outErr);
-
-    /* Is called after a display is powered on and all layer properties have
-     * been set. It should be used to test functions such as validate, accepting
-     * changes, present, etc. */
-    using TestDisplayLayersFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, const std::vector<hwc2_layer_t>& layers,
-            Hwc2TestLayers* testLayers);
-
-    /* It is called on an non validated display */
-    using TestDisplayNonValidatedLayersFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, std::vector<hwc2_layer_t>* layers);
-
-    /* Tests client target support on a particular display and config */
-    using TestClientTargetSupportFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display,
-            const Hwc2TestClientTargetSupport& testClientTargetSupport);
-
-    /* Tests a particular active display config */
-    using TestActiveDisplayConfigFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display);
-
-    /* Tests a newly created virtual display */
-    using TestCreateVirtualDisplayFunction = void (*)(Hwc2Test* test,
-            hwc2_display_t display, Hwc2TestVirtualDisplay* testVirtualDisplay);
-
-    /* Advances a property of Hwc2TestLayer */
-    using AdvanceProperty = bool (*)(Hwc2TestLayer* testLayer);
-
-    /* Advances properties of Hwc2TestLayers */
-    using AdvanceProperties = bool (*)(Hwc2TestLayers* testLayer);
-
-    /* Advances properties of Hwc2TestClientTargetSupport */
-    using AdvanceClientTargetSupport = bool (*)(
-            Hwc2TestClientTargetSupport* testClientTargetSupport);
-
-    /* For each active display it cycles through each display config and tests
-     * each property value. It creates a layer, sets the property and then
-     * destroys the layer */
-    void setLayerProperty(Hwc2TestCoverage coverage,
-            TestLayerPropertyFunction function, AdvanceProperty advance)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                hwc2_layer_t layer;
-                Area displayArea;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-                Hwc2TestLayer testLayer(coverage, displayArea);
-
-                do {
-                    ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-                    ASSERT_NO_FATAL_FAILURE(function(this, display, layer,
-                            &testLayer, nullptr));
-
-                    ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-                } while (advance(&testLayer));
-            }
-        }
-    }
-
-    /* For each active display it cycles through each display config and tests
-     * each property value. It creates a layer, cycles through each property
-     * value and updates the layer property value and then destroys the layer */
-    void setLayerPropertyUpdate(Hwc2TestCoverage coverage,
-            TestLayerPropertyFunction function, AdvanceProperty advance)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                hwc2_layer_t layer;
-                Area displayArea;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-                Hwc2TestLayer testLayer(coverage, displayArea);
-
-                ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-                do {
-                    ASSERT_NO_FATAL_FAILURE(function(this, display, layer,
-                            &testLayer, nullptr));
-                } while (advance(&testLayer));
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-            }
-        }
-    }
-
-    /* For each active display it cycles through each display config and tests
-     * each property value. It creates multiple layers, calls the
-     * TestLayerPropertiesFunction to set property values and then
-     * destroys the layers */
-    void setLayerProperties(Hwc2TestCoverage coverage, size_t layerCnt,
-            TestLayerPropertiesFunction function, AdvanceProperties advance)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                std::vector<hwc2_layer_t> layers;
-                Area displayArea;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-
-                ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));
-                Hwc2TestLayers testLayers(layers, coverage, displayArea);
-
-                do {
-                    for (auto layer : layers) {
-                        EXPECT_NO_FATAL_FAILURE(function(this, display, layer,
-                                &testLayers));
-                    }
-                } while (advance(&testLayers));
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayers(display, std::move(layers)));
-            }
-        }
-    }
-
-    /* For each active display it cycles through each display config.
-     * 1) It attempts to set a valid property value to bad layer handle.
-     * 2) It creates a layer x and attempts to set a valid property value to
-     *    layer x + 1
-     * 3) It destroys the layer x and attempts to set a valid property value to
-     *    the destroyed layer x.
-     */
-    void setLayerPropertyBadLayer(Hwc2TestCoverage coverage,
-            TestLayerPropertyBadLayerFunction function)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                hwc2_layer_t layer = 0;
-                Area displayArea;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-                Hwc2TestLayer testLayer(coverage, displayArea);
-
-                ASSERT_NO_FATAL_FAILURE(function(this, display, layer,
-                        &testLayer, &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-                ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-                ASSERT_NO_FATAL_FAILURE(function(this, display, layer + 1,
-                        &testLayer, &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-
-                ASSERT_NO_FATAL_FAILURE(function(this, display, layer,
-                        &testLayer, &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-            }
-        }
-    }
-
-    /* For each active display it cycles through each display config and tests
-     * each property value. It creates a layer, sets a bad property value and
-     * then destroys the layer */
-    void setLayerPropertyBadParameter(TestLayerPropertyBadParameterFunction function)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                hwc2_layer_t layer;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-
-                ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-                ASSERT_NO_FATAL_FAILURE(function(this, display, layer, &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER) << "returned wrong"
-                        " error code";
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-            }
-        }
-    }
-
-    /* For each active display it powers on the display, cycles through each
-     * config and creates a set of layers with a certain amount of coverage.
-     * For each active display, for each config and for each set of layers,
-     * it calls the TestDisplayLayersFunction */
-    void displayLayers(Hwc2TestCoverage coverage, size_t layerCnt,
-            TestDisplayLayersFunction function)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                Area displayArea;
-                std::vector<hwc2_layer_t> layers;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display, &displayArea));
-
-                ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));
-                Hwc2TestLayers testLayers(layers, coverage, displayArea);
-
-                do {
-                    bool skip;
-
-                    ASSERT_NO_FATAL_FAILURE(setLayerProperties(display, layers,
-                            &testLayers, &skip));
-                    if (!skip)
-                        EXPECT_NO_FATAL_FAILURE(function(this, display, layers,
-                                &testLayers));
-
-                } while (testLayers.advance());
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayers(display,
-                        std::move(layers)));
-            }
-
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-        }
-    }
-
-    /* For each active display, it calls the
-     * TestDisplayNonValidatedLayersFunction on a variety on non-validated
-     * layer combinations */
-    void displayNonValidatedLayers(size_t layerCnt,
-            TestDisplayNonValidatedLayersFunction function)
-    {
-        for (auto display : mDisplays) {
-            uint32_t numTypes, numRequests;
-            std::vector<hwc2_layer_t> layers;
-            bool hasChanges;
-
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-            EXPECT_NO_FATAL_FAILURE(function(this, display, &layers));
-
-            ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));
-
-            EXPECT_NO_FATAL_FAILURE(function(this, display, &layers));
-
-            for (auto layer : layers) {
-                ASSERT_NO_FATAL_FAILURE(setLayerCompositionType(display, layer,
-                        HWC2_COMPOSITION_CLIENT));
-            }
-
-            EXPECT_NO_FATAL_FAILURE(function(this, display, &layers));
-
-            ASSERT_NO_FATAL_FAILURE(validateDisplay(display, &numTypes,
-                    &numRequests, &hasChanges));
-
-            for (auto layer : layers) {
-                ASSERT_NO_FATAL_FAILURE(setLayerCompositionType(display, layer,
-                        HWC2_COMPOSITION_DEVICE));
-            }
-
-            EXPECT_NO_FATAL_FAILURE(function(this, display, &layers));
-
-            ASSERT_NO_FATAL_FAILURE(destroyLayers(display, std::move(layers)));
-
-            EXPECT_NO_FATAL_FAILURE(function(this, display, &layers));
-
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-        }
-    }
-
-    /* Test client target support on each config on each active display */
-    void setClientTargetSupport(Hwc2TestCoverage coverage,
-            TestClientTargetSupportFunction function,
-            AdvanceClientTargetSupport advance)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                Area displayArea;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-                Hwc2TestClientTargetSupport testClientTargetSupport(coverage,
-                        displayArea);
-
-                do {
-                    EXPECT_NO_FATAL_FAILURE(function(this, display,
-                            testClientTargetSupport));
-
-                } while (advance(&testClientTargetSupport));
-            }
-        }
-    }
-
-    /* Cycles through each config on each active display and calls
-     * a TestActiveDisplayConfigFunction */
-    void setActiveDisplayConfig(TestActiveDisplayConfigFunction function)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-
-                EXPECT_NO_FATAL_FAILURE(function(this, display));
-            }
-        }
-    }
-
-    /* Creates a virtual display for testing */
-    void createVirtualDisplay(Hwc2TestCoverage coverage,
-            TestCreateVirtualDisplayFunction function)
-    {
-        Hwc2TestVirtualDisplay testVirtualDisplay(coverage);
-
-        do {
-            hwc2_display_t display;
-            hwc2_error_t err = HWC2_ERROR_NONE;
-
-            const UnsignedArea& dimension =
-                    testVirtualDisplay.getDisplayDimension();
-            android_pixel_format_t desiredFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-
-            ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(dimension.width,
-                    dimension.height, &desiredFormat, &display, &err));
-
-            EXPECT_TRUE(err == HWC2_ERROR_NONE || err == HWC2_ERROR_NO_RESOURCES
-                    || err == HWC2_ERROR_UNSUPPORTED)
-                    << "returned wrong error code";
-            EXPECT_GE(desiredFormat, 0) << "invalid format";
-
-            if (err != HWC2_ERROR_NONE)
-                continue;
-
-            EXPECT_NO_FATAL_FAILURE(function(this, display,
-                    &testVirtualDisplay));
-
-            ASSERT_NO_FATAL_FAILURE(destroyVirtualDisplay(display));
-
-        } while (testVirtualDisplay.advance());
-    }
-
-
-    void getActiveConfigAttribute(hwc2_display_t display,
-            hwc2_attribute_t attribute, int32_t* outValue)
-    {
-        hwc2_config_t config;
-        ASSERT_NO_FATAL_FAILURE(getActiveConfig(display, &config));
-        ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config,
-                attribute, outValue));
-        ASSERT_GE(*outValue, 0) << "failed to get valid "
-                << getAttributeName(attribute);
-    }
-
-    void getActiveDisplayArea(hwc2_display_t display, Area* displayArea)
-    {
-        ASSERT_NO_FATAL_FAILURE(getActiveConfigAttribute(display,
-                HWC2_ATTRIBUTE_WIDTH, &displayArea->width));
-        ASSERT_NO_FATAL_FAILURE(getActiveConfigAttribute(display,
-                HWC2_ATTRIBUTE_HEIGHT, &displayArea->height));
-    }
-
-    void closeFences(hwc2_display_t display, int32_t presentFence)
-    {
-        std::vector<hwc2_layer_t> layers;
-        std::vector<int32_t> fences;
-        const int msWait = 3000;
-
-        if (presentFence >= 0) {
-            ASSERT_GE(sync_wait(presentFence, msWait), 0);
-            close(presentFence);
-        }
-
-        ASSERT_NO_FATAL_FAILURE(getReleaseFences(display, &layers, &fences));
-        EXPECT_EQ(layers.size(), fences.size());
-
-        for (int32_t fence : fences) {
-            if (fence >= 0) {
-                EXPECT_GE(sync_wait(fence, msWait), 0);
-                close(fence);
-            }
-        }
-    }
-
-    void setLayerProperties(hwc2_display_t display, hwc2_layer_t layer,
-            Hwc2TestLayers* testLayers, bool* outSkip)
-    {
-        hwc2_composition_t composition;
-        buffer_handle_t handle = nullptr;
-        int32_t acquireFence;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-        *outSkip = true;
-
-        if (!testLayers->contains(layer))
-            return;
-
-        composition = testLayers->getComposition(layer);
-
-        /* If the device cannot support a buffer format, then do not continue */
-        if ((composition == HWC2_COMPOSITION_DEVICE
-                || composition == HWC2_COMPOSITION_CURSOR)
-                && testLayers->getBuffer(layer, &handle, &acquireFence) < 0)
-            return;
-
-        EXPECT_NO_FATAL_FAILURE(setLayerCompositionType(display, layer,
-                composition, &err));
-        if (err == HWC2_ERROR_UNSUPPORTED)
-            EXPECT_TRUE(composition != HWC2_COMPOSITION_CLIENT
-                    && composition != HWC2_COMPOSITION_DEVICE);
-
-        const hwc_rect_t cursor = testLayers->getCursorPosition(layer);
-
-        EXPECT_NO_FATAL_FAILURE(setLayerBuffer(display, layer, handle,
-                acquireFence));
-        EXPECT_NO_FATAL_FAILURE(setLayerBlendMode(display, layer,
-                testLayers->getBlendMode(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerColor(display, layer,
-                testLayers->getColor(layer)));
-        if (composition == HWC2_COMPOSITION_CURSOR)
-            EXPECT_NO_FATAL_FAILURE(setCursorPosition(display, layer,
-            cursor.left, cursor.top));
-        EXPECT_NO_FATAL_FAILURE(setLayerDataspace(display, layer,
-                testLayers->getDataspace(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerDisplayFrame(display, layer,
-                testLayers->getDisplayFrame(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerPlaneAlpha(display, layer,
-                testLayers->getPlaneAlpha(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerSourceCrop(display, layer,
-                testLayers->getSourceCrop(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerSurfaceDamage(display, layer,
-                testLayers->getSurfaceDamage(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerTransform(display, layer,
-                testLayers->getTransform(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerVisibleRegion(display, layer,
-                testLayers->getVisibleRegion(layer)));
-        EXPECT_NO_FATAL_FAILURE(setLayerZOrder(display, layer,
-                testLayers->getZOrder(layer)));
-
-        *outSkip = false;
-    }
-
-    void setLayerProperties(hwc2_display_t display,
-            const std::vector<hwc2_layer_t>& layers,
-            Hwc2TestLayers* testLayers, bool* outSkip)
-    {
-        for (auto layer : layers) {
-            EXPECT_NO_FATAL_FAILURE(setLayerProperties(display, layer,
-                    testLayers, outSkip));
-            if (*outSkip)
-                return;
-        }
-    }
-
-    void setClientTarget(hwc2_display_t display,
-            Hwc2TestClientTarget* testClientTarget,
-            const Hwc2TestLayers& testLayers,
-            const std::set<hwc2_layer_t>& clientLayers,
-            const std::set<hwc2_layer_t>& clearLayers, bool flipClientTarget,
-            const Area& displayArea)
-    {
-        Dataspace dataspace = Dataspace::UNKNOWN;
-        hwc_region_t damage = { };
-        buffer_handle_t handle;
-        int32_t acquireFence;
-
-        ASSERT_EQ(testClientTarget->getBuffer(testLayers, clientLayers,
-                clearLayers, flipClientTarget, displayArea, &handle,
-                &acquireFence), 0);
-        EXPECT_NO_FATAL_FAILURE(setClientTarget(display, handle, acquireFence,
-                dataspace, damage));
-    }
-
-    void presentDisplays(size_t layerCnt, Hwc2TestCoverage coverage,
-            const std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage>&
-            coverageExceptions, bool optimize)
-    {
-        for (auto display : mDisplays) {
-            std::vector<hwc2_config_t> configs;
-
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-            ASSERT_NO_FATAL_FAILURE(enableVsync(display));
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                Area displayArea;
-                std::vector<hwc2_layer_t> layers;
-
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-
-                ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));
-                Hwc2TestLayers testLayers(layers, coverage, displayArea,
-                        coverageExceptions);
-
-                if (optimize && !testLayers.optimizeLayouts())
-                    continue;
-
-                std::set<hwc2_layer_t> clientLayers;
-                std::set<hwc2_layer_t> clearLayers;
-                Hwc2TestClientTarget testClientTarget;
-
-                do {
-                    uint32_t numTypes, numRequests;
-                    bool hasChanges, skip;
-                    bool flipClientTarget;
-                    int32_t presentFence;
-
-                    ASSERT_NO_FATAL_FAILURE(setLayerProperties(display, layers,
-                            &testLayers, &skip));
-                    if (skip)
-                        continue;
-
-                    ASSERT_NO_FATAL_FAILURE(validateDisplay(display, &numTypes,
-                            &numRequests, &hasChanges));
-                    if (hasChanges)
-                        EXPECT_LE(numTypes, static_cast<uint32_t>(layers.size()))
-                                << "wrong number of requests";
-
-                    ASSERT_NO_FATAL_FAILURE(handleCompositionChanges(display,
-                            testLayers, layers, numTypes, &clientLayers));
-                    ASSERT_NO_FATAL_FAILURE(handleRequests(display, layers,
-                            numRequests, &clearLayers, &flipClientTarget));
-                    ASSERT_NO_FATAL_FAILURE(setClientTarget(display,
-                            &testClientTarget, testLayers, clientLayers,
-                            clearLayers, flipClientTarget, displayArea));
-                    ASSERT_NO_FATAL_FAILURE(acceptDisplayChanges(display));
-
-                    ASSERT_NO_FATAL_FAILURE(waitForVsync());
-
-                    EXPECT_NO_FATAL_FAILURE(presentDisplay(display,
-                            &presentFence));
-
-                    ASSERT_NO_FATAL_FAILURE(closeFences(display, presentFence));
-
-                } while (testLayers.advance());
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayers(display,
-                        std::move(layers)));
-            }
-
-            ASSERT_NO_FATAL_FAILURE(disableVsync(display));
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-        }
-    }
-
-    void createAndPresentVirtualDisplay(size_t layerCnt,
-            Hwc2TestCoverage coverage,
-            const std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage>&
-            coverageExceptions)
-    {
-        Hwc2TestVirtualDisplay testVirtualDisplay(coverage);
-        hwc2_display_t display;
-        android_pixel_format_t desiredFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-
-        do {
-            // Items dependent on the display dimensions
-            hwc2_error_t err = HWC2_ERROR_NONE;
-            const UnsignedArea& dimension =
-                    testVirtualDisplay.getDisplayDimension();
-            ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(dimension.width,
-                    dimension.height, &desiredFormat, &display, &err));
-            ASSERT_TRUE(err == HWC2_ERROR_NONE)
-                    << "Cannot allocate virtual display";
-
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-            ASSERT_NO_FATAL_FAILURE(enableVsync(display));
-
-            std::vector<hwc2_config_t> configs;
-            ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-            for (auto config : configs) {
-                ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-
-                Area displayArea;
-                ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display,
-                        &displayArea));
-
-                std::vector<hwc2_layer_t> layers;
-                ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers,
-                        layerCnt));
-                Hwc2TestLayers testLayers(layers, coverage, displayArea,
-                        coverageExceptions);
-
-                /*
-                 * Layouts that do not cover an entire virtual display will
-                 * cause undefined behavior.
-                 * Enable optimizeLayouts to avoid this.
-                 */
-                testLayers.optimizeLayouts();
-                do {
-                    // Items dependent on the testLayers properties
-                    std::set<hwc2_layer_t> clientLayers;
-                    std::set<hwc2_layer_t> clearLayers;
-                    uint32_t numTypes, numRequests;
-                    bool hasChanges, skip;
-                    bool flipClientTarget;
-                    int32_t presentFence;
-                    Hwc2TestClientTarget testClientTarget;
-                    buffer_handle_t outputBufferHandle;
-                    android::base::unique_fd outputBufferReleaseFence;
-
-                    ASSERT_NO_FATAL_FAILURE(setLayerProperties(display, layers,
-                            &testLayers, &skip));
-
-                    if (skip)
-                        continue;
-
-                    ASSERT_NO_FATAL_FAILURE(validateDisplay(display, &numTypes,
-                            &numRequests, &hasChanges));
-
-                    if (hasChanges)
-                        EXPECT_LE(numTypes, static_cast<uint32_t>(layers.size()))
-                                << "wrong number of requests";
-
-                    ASSERT_NO_FATAL_FAILURE(handleCompositionChanges(display,
-                            testLayers, layers, numTypes, &clientLayers));
-
-                    ASSERT_NO_FATAL_FAILURE(handleRequests(display, layers,
-                            numRequests, &clearLayers, &flipClientTarget));
-                    ASSERT_NO_FATAL_FAILURE(setClientTarget(display,
-                            &testClientTarget, testLayers, clientLayers,
-                            clearLayers, flipClientTarget, displayArea));
-                    ASSERT_NO_FATAL_FAILURE(acceptDisplayChanges(display));
-
-                    ASSERT_EQ(testVirtualDisplay.getOutputBuffer(
-                            &outputBufferHandle, &outputBufferReleaseFence), 0);
-                    ASSERT_NO_FATAL_FAILURE(setOutputBuffer(display,
-                            outputBufferHandle, outputBufferReleaseFence));
-
-                    EXPECT_NO_FATAL_FAILURE(presentDisplay(display,
-                            &presentFence));
-                    ASSERT_NO_FATAL_FAILURE(closeFences(display, presentFence));
-
-                    ASSERT_EQ(testVirtualDisplay.verifyOutputBuffer(&testLayers,
-                            &layers, &clearLayers), 0);
-
-                    /*
-                     * Upscaling the image causes minor pixel differences.
-                     * Work around this by using some threshold.
-                     *
-                     * Fail test if we are off by more than 1% of our
-                     * pixels.
-                     */
-                    ComparatorResult& comparatorResult = ComparatorResult::get();
-                    int threshold = (dimension.width * dimension.height) / 100;
-                    double diffPercent = (comparatorResult.getDifferentPixelCount() * 100.0) /
-                            (dimension.width * dimension.height);
-
-                    if (comparatorResult.getDifferentPixelCount() != 0)
-                        EXPECT_TRUE(false)
-                                << comparatorResult.getDifferentPixelCount() << " pixels ("
-                                << diffPercent << "%) are different.";
-
-                    if (comparatorResult.getDifferentPixelCount() > threshold) {
-                        EXPECT_TRUE(false)
-                                << "Mismatched pixel count exceeds threshold. "
-                                << "Writing buffers to file.";
-
-                        const ::testing::TestInfo* const test_info =
-                                ::testing::UnitTest::GetInstance()
-                                ->current_test_info();
-
-                        EXPECT_EQ(testVirtualDisplay.writeBuffersToFile(
-                                test_info->name()), 0)
-                                << "Failed to write buffers.";
-                    }
-
-                    ASSERT_LE(comparatorResult.getDifferentPixelCount(), threshold)
-                            << comparatorResult.getDifferentPixelCount() << " pixels ("
-                            << diffPercent << "%) are different. "
-                            << "Exceeds 1% threshold, terminating test. "
-                            << "Test case: " << testLayers.dump();
-
-                } while (testLayers.advance());
-
-                ASSERT_NO_FATAL_FAILURE(destroyLayers(display,
-                        std::move(layers)));
-            }
-            ASSERT_NO_FATAL_FAILURE(disableVsync(display));
-            ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-            ASSERT_NO_FATAL_FAILURE(destroyVirtualDisplay(display));
-        } while (testVirtualDisplay.advance());
-    }
-
-    hwc2_device_t* mHwc2Device = nullptr;
-
-    enum class Hwc2TestHotplugStatus {
-        Init = 1,
-        Receiving,
-        Done,
-    };
-
-    std::mutex mHotplugMutex;
-    std::condition_variable mHotplugCv;
-    Hwc2TestHotplugStatus mHotplugStatus = Hwc2TestHotplugStatus::Init;
-    std::unordered_set<hwc2_display_t> mDisplays;
-
-    /* Store all created layers that have not been destroyed. If an ASSERT_*
-     * fails, then destroy the layers on exit */
-    std::set<std::pair<hwc2_display_t, hwc2_layer_t>> mLayers;
-
-    /* Store the power mode state. If it is not HWC2_POWER_MODE_OFF when
-     * tearing down the test cases, change it to HWC2_POWER_MODE_OFF */
-    std::set<hwc2_display_t> mActiveDisplays;
-
-    /* Store all created virtual displays that have not been destroyed. If an
-     * ASSERT_* fails, then destroy the virtual displays on exit */
-    std::set<hwc2_display_t> mVirtualDisplays;
-
-    std::mutex mVsyncMutex;
-    std::condition_variable mVsyncCv;
-    hwc2_display_t mVsyncDisplay;
-    int64_t mVsyncTimestamp = -1;
-};
-
-void hwc2TestHotplugCallback(hwc2_callback_data_t callbackData,
-        hwc2_display_t display, int32_t connection)
-{
-    if (callbackData)
-        static_cast<Hwc2Test*>(callbackData)->hotplugCallback(display,
-                connection);
-}
-
-void hwc2TestVsyncCallback(hwc2_callback_data_t callbackData,
-        hwc2_display_t display, int64_t timestamp)
-{
-    if (callbackData)
-        static_cast<Hwc2Test*>(callbackData)->vsyncCallback(display,
-                timestamp);
-}
-
-void setBlendMode(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerBlendMode(display, layer,
-            testLayer->getBlendMode(), outErr));
-}
-
-void setBuffer(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    buffer_handle_t handle;
-    android::base::unique_fd acquireFence;
-    hwc2_composition_t composition = testLayer->getComposition();
-
-    if (composition == HWC2_COMPOSITION_CLIENT
-            || composition == HWC2_COMPOSITION_SOLID_COLOR
-            || composition == HWC2_COMPOSITION_SIDEBAND)
-        return;
-
-    if (testLayer->getBuffer(&handle, &acquireFence) < 0)
-        return;
-
-    ASSERT_NO_FATAL_FAILURE(test->setLayerCompositionType(display, layer,
-            composition));
-    EXPECT_NO_FATAL_FAILURE(test->setLayerBuffer(display, layer,
-            handle, acquireFence, outErr));
-}
-
-void setColor(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    ASSERT_NO_FATAL_FAILURE(test->setLayerCompositionType(display,
-            layer, HWC2_COMPOSITION_SOLID_COLOR));
-    ASSERT_NO_FATAL_FAILURE(test->setLayerPlaneAlpha(display,
-            layer, testLayer->getPlaneAlpha()));
-    ASSERT_NO_FATAL_FAILURE(test->setLayerBlendMode(display,
-            layer, testLayer->getBlendMode()));
-    EXPECT_NO_FATAL_FAILURE(test->setLayerColor(display, layer,
-            testLayer->getColor(), outErr));
-}
-
-void setComposition(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    hwc2_composition_t composition = testLayer->getComposition();
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(test->setLayerCompositionType(display, layer,
-            composition, &err));
-    if (outErr) {
-        *outErr = err;
-        return;
-    }
-
-    if (composition != HWC2_COMPOSITION_SIDEBAND) {
-        EXPECT_EQ(err, HWC2_ERROR_NONE) << "returned wrong error code";
-    } else {
-        EXPECT_TRUE(err == HWC2_ERROR_NONE || err == HWC2_ERROR_UNSUPPORTED)
-                 << "returned wrong error code";
-    }
-}
-
-void setCursorPosition(Hwc2Test* test, hwc2_display_t display,
-        hwc2_layer_t layer, Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    ASSERT_NO_FATAL_FAILURE(test->setLayerCompositionType(display,
-            layer, HWC2_COMPOSITION_CURSOR));
-
-    const hwc_rect_t cursorPosition = testLayer->getCursorPosition();
-    EXPECT_NO_FATAL_FAILURE(test->setCursorPosition(display, layer,
-            cursorPosition.left, cursorPosition.top, outErr));
-}
-
-void setDataspace(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerDataspace(display, layer,
-            testLayer->getDataspace(), outErr));
-}
-
-void setDisplayFrame(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerDisplayFrame(display, layer,
-            testLayer->getDisplayFrame(), outErr));
-}
-
-void setPlaneAlpha(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t *outErr)
-{
-    ASSERT_NO_FATAL_FAILURE(test->setLayerBlendMode(display, layer,
-            testLayer->getBlendMode()));
-    EXPECT_NO_FATAL_FAILURE(test->setLayerPlaneAlpha(display, layer,
-            testLayer->getPlaneAlpha(), outErr));
-}
-
-void setSourceCrop(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerSourceCrop(display, layer,
-            testLayer->getSourceCrop(), outErr));
-}
-
-void setSurfaceDamage(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerSurfaceDamage(display, layer,
-            testLayer->getSurfaceDamage(), outErr));
-}
-
-void setTransform(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerTransform(display, layer,
-            testLayer->getTransform(), outErr));
-}
-
-void setVisibleRegion(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerVisibleRegion(display, layer,
-            testLayer->getVisibleRegion(), outErr));
-}
-
-void setZOrder(Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-        Hwc2TestLayer* testLayer, hwc2_error_t* outErr)
-{
-    EXPECT_NO_FATAL_FAILURE(test->setLayerZOrder(display, layer,
-            testLayer->getZOrder(), outErr));
-}
-
-bool advanceBlendMode(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advanceBlendMode();
-}
-
-bool advanceBuffer(Hwc2TestLayer* testLayer)
-{
-    if (testLayer->advanceComposition())
-        return true;
-    return testLayer->advanceBufferArea();
-}
-
-bool advanceColor(Hwc2TestLayer* testLayer)
-{
-    /* Color depends on blend mode so advance blend mode last so color is not
-     * force to update as often */
-    if (testLayer->advancePlaneAlpha())
-        return true;
-    if (testLayer->advanceColor())
-        return true;
-    return testLayer->advanceBlendMode();
-}
-
-bool advanceComposition(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advanceComposition();
-}
-
-bool advanceCursorPosition(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advanceCursorPosition();
-}
-
-bool advanceDataspace(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advanceDataspace();
-}
-
-bool advanceDisplayFrame(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advanceDisplayFrame();
-}
-
-bool advancePlaneAlpha(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advancePlaneAlpha();
-}
-
-bool advanceSourceCrop(Hwc2TestLayer* testLayer)
-{
-    if (testLayer->advanceSourceCrop())
-        return true;
-    return testLayer->advanceBufferArea();
-}
-
-bool advanceSurfaceDamage(Hwc2TestLayer* testLayer)
-{
-    if (testLayer->advanceSurfaceDamage())
-        return true;
-    return testLayer->advanceBufferArea();
-}
-
-bool advanceTransform(Hwc2TestLayer* testLayer)
-{
-    return testLayer->advanceTransform();
-}
-
-bool advanceVisibleRegions(Hwc2TestLayers* testLayers)
-{
-    return testLayers->advanceVisibleRegions();
-}
-
-bool advanceClientTargetSupport(
-        Hwc2TestClientTargetSupport* testClientTargetSupport)
-{
-    return testClientTargetSupport->advance();
-}
-
-static const std::array<hwc2_function_descriptor_t, 42> requiredFunctions = {{
-    HWC2_FUNCTION_ACCEPT_DISPLAY_CHANGES,
-    HWC2_FUNCTION_CREATE_LAYER,
-    HWC2_FUNCTION_CREATE_VIRTUAL_DISPLAY,
-    HWC2_FUNCTION_DESTROY_LAYER,
-    HWC2_FUNCTION_DESTROY_VIRTUAL_DISPLAY,
-    HWC2_FUNCTION_DUMP,
-    HWC2_FUNCTION_GET_ACTIVE_CONFIG,
-    HWC2_FUNCTION_GET_CHANGED_COMPOSITION_TYPES,
-    HWC2_FUNCTION_GET_CLIENT_TARGET_SUPPORT,
-    HWC2_FUNCTION_GET_COLOR_MODES,
-    HWC2_FUNCTION_GET_DISPLAY_ATTRIBUTE,
-    HWC2_FUNCTION_GET_DISPLAY_CONFIGS,
-    HWC2_FUNCTION_GET_DISPLAY_NAME,
-    HWC2_FUNCTION_GET_DISPLAY_REQUESTS,
-    HWC2_FUNCTION_GET_DISPLAY_TYPE,
-    HWC2_FUNCTION_GET_DOZE_SUPPORT,
-    HWC2_FUNCTION_GET_HDR_CAPABILITIES,
-    HWC2_FUNCTION_GET_MAX_VIRTUAL_DISPLAY_COUNT,
-    HWC2_FUNCTION_GET_RELEASE_FENCES,
-    HWC2_FUNCTION_PRESENT_DISPLAY,
-    HWC2_FUNCTION_REGISTER_CALLBACK,
-    HWC2_FUNCTION_SET_ACTIVE_CONFIG,
-    HWC2_FUNCTION_SET_CLIENT_TARGET,
-    HWC2_FUNCTION_SET_COLOR_MODE,
-    HWC2_FUNCTION_SET_COLOR_TRANSFORM,
-    HWC2_FUNCTION_SET_CURSOR_POSITION,
-    HWC2_FUNCTION_SET_LAYER_BLEND_MODE,
-    HWC2_FUNCTION_SET_LAYER_BUFFER,
-    HWC2_FUNCTION_SET_LAYER_COLOR,
-    HWC2_FUNCTION_SET_LAYER_COMPOSITION_TYPE,
-    HWC2_FUNCTION_SET_LAYER_DATASPACE,
-    HWC2_FUNCTION_SET_LAYER_DISPLAY_FRAME,
-    HWC2_FUNCTION_SET_LAYER_PLANE_ALPHA,
-    HWC2_FUNCTION_SET_LAYER_SOURCE_CROP,
-    HWC2_FUNCTION_SET_LAYER_SURFACE_DAMAGE,
-    HWC2_FUNCTION_SET_LAYER_TRANSFORM,
-    HWC2_FUNCTION_SET_LAYER_VISIBLE_REGION,
-    HWC2_FUNCTION_SET_LAYER_Z_ORDER,
-    HWC2_FUNCTION_SET_OUTPUT_BUFFER,
-    HWC2_FUNCTION_SET_POWER_MODE,
-    HWC2_FUNCTION_SET_VSYNC_ENABLED,
-    HWC2_FUNCTION_VALIDATE_DISPLAY,
-}};
-
-/* TESTCASE: Tests that the HWC2 supports all required functions. */
-TEST_F(Hwc2Test, GET_FUNCTION)
-{
-    for (hwc2_function_descriptor_t descriptor : requiredFunctions) {
-        hwc2_function_pointer_t pfn = getFunction(descriptor);
-        EXPECT_TRUE(pfn) << "failed to get function "
-                << getFunctionDescriptorName(descriptor);
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 fails to retrieve and invalid function. */
-TEST_F(Hwc2Test, GET_FUNCTION_invalid_function)
-{
-    hwc2_function_pointer_t pfn = getFunction(HWC2_FUNCTION_INVALID);
-    EXPECT_FALSE(pfn) << "failed to get invalid function";
-}
-
-/* TESTCASE: Tests that the HWC2 does not return an invalid capability. */
-TEST_F(Hwc2Test, GET_CAPABILITIES)
-{
-    std::vector<hwc2_capability_t> capabilities;
-
-    getCapabilities(&capabilities);
-
-    EXPECT_EQ(std::count(capabilities.begin(), capabilities.end(),
-            HWC2_CAPABILITY_INVALID), 0);
-}
-
-static const std::array<hwc2_callback_descriptor_t, 3> callbackDescriptors = {{
-    HWC2_CALLBACK_HOTPLUG,
-    HWC2_CALLBACK_REFRESH,
-    HWC2_CALLBACK_VSYNC,
-}};
-
-/* TESTCASE: Tests that the HWC2 can successfully register all required
- * callback functions. */
-TEST_F(Hwc2Test, REGISTER_CALLBACK)
-{
-    hwc2_callback_data_t data = reinterpret_cast<hwc2_callback_data_t>(
-            const_cast<char*>("data"));
-
-    for (auto descriptor : callbackDescriptors) {
-        ASSERT_NO_FATAL_FAILURE(registerCallback(descriptor, data,
-                []() { return; }));
-    }
-}
-
-/* TESTCASE: Test that the HWC2 fails to register invalid callbacks. */
-TEST_F(Hwc2Test, REGISTER_CALLBACK_bad_parameter)
-{
-    hwc2_callback_data_t data = reinterpret_cast<hwc2_callback_data_t>(
-            const_cast<char*>("data"));
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_INVALID, data,
-            []() { return; }, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can register a callback with null data. */
-TEST_F(Hwc2Test, REGISTER_CALLBACK_null_data)
-{
-    hwc2_callback_data_t data = nullptr;
-
-    for (auto descriptor : callbackDescriptors) {
-        ASSERT_NO_FATAL_FAILURE(registerCallback(descriptor, data,
-                []() { return; }));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 returns the correct display type for each
- * physical display. */
-TEST_F(Hwc2Test, GET_DISPLAY_TYPE)
-{
-    for (auto display : mDisplays) {
-        hwc2_display_type_t type;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayType(display, &type));
-        EXPECT_EQ(type, HWC2_DISPLAY_TYPE_PHYSICAL) << "failed to return"
-                " correct display type";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 returns an error when the display type of a bad
- * display is requested. */
-TEST_F(Hwc2Test, GET_DISPLAY_TYPE_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_display_type_t type;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getDisplayType(display, &type, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can create and destroy layers. */
-TEST_F(Hwc2Test, CREATE_DESTROY_LAYER)
-{
-    for (auto display : mDisplays) {
-        hwc2_layer_t layer;
-
-        ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot create a layer for a bad display */
-TEST_F(Hwc2Test, CREATE_LAYER_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_layer_t layer;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 will either support a large number of resources
- * or will return no resources. */
-TEST_F(Hwc2Test, CREATE_LAYER_no_resources)
-{
-    const size_t layerCnt = 1000;
-
-    for (auto display : mDisplays) {
-        std::vector<hwc2_layer_t> layers;
-
-        ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayers(display, std::move(layers)));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot destroy a layer for a bad display */
-TEST_F(Hwc2Test, DESTROY_LAYER_bad_display)
-{
-    hwc2_display_t badDisplay;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&badDisplay));
-
-    for (auto display : mDisplays) {
-        hwc2_layer_t layer = 0;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(badDisplay, layer, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(badDisplay, layer, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot destory a bad layer */
-TEST_F(Hwc2Test, DESTROY_LAYER_bad_layer)
-{
-    for (auto display : mDisplays) {
-        hwc2_layer_t layer;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, UINT64_MAX / 2, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, 0, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, UINT64_MAX - 1, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, 1, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, UINT64_MAX, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer + 1, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-
-        ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_LAYER) << "returned wrong error code";
-    }
-}
-
-static const std::array<hwc2_attribute_t, 2> requiredAttributes = {{
-    HWC2_ATTRIBUTE_WIDTH,
-    HWC2_ATTRIBUTE_HEIGHT,
-}};
-
-static const std::array<hwc2_attribute_t, 3> optionalAttributes = {{
-    HWC2_ATTRIBUTE_VSYNC_PERIOD,
-    HWC2_ATTRIBUTE_DPI_X,
-    HWC2_ATTRIBUTE_DPI_Y,
-}};
-
-/* TESTCASE: Tests that the HWC2 can return display attributes for a valid
- * config. */
-TEST_F(Hwc2Test, GET_DISPLAY_ATTRIBUTE)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        for (auto config : configs) {
-            int32_t value;
-
-            for (auto attribute : requiredAttributes) {
-                ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config,
-                        attribute, &value));
-                EXPECT_GE(value, 0) << "missing required attribute "
-                        << getAttributeName(attribute) << " for config "
-                        << config;
-            }
-            for (auto attribute : optionalAttributes) {
-                ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config,
-                        attribute, &value));
-            }
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 will return a value of -1 for an invalid
- * attribute */
-TEST_F(Hwc2Test, GET_DISPLAY_ATTRIBUTE_invalid_attribute)
-{
-    const hwc2_attribute_t attribute = HWC2_ATTRIBUTE_INVALID;
-
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        for (auto config : configs) {
-            int32_t value;
-            hwc2_error_t err = HWC2_ERROR_NONE;
-
-            ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config,
-                    attribute, &value, &err));
-            EXPECT_EQ(value, -1) << "failed to return -1 for an invalid"
-                    " attribute for config " << config;
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 will fail to get attributes for a bad display */
-TEST_F(Hwc2Test, GET_DISPLAY_ATTRIBUTE_bad_display)
-{
-    hwc2_display_t display;
-    const hwc2_config_t config = 0;
-    int32_t value;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    for (auto attribute : requiredAttributes) {
-        ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config, attribute,
-                &value, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-    }
-
-    for (auto attribute : optionalAttributes) {
-        ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config, attribute,
-                &value, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 will fail to get attributes for a bad config */
-TEST_F(Hwc2Test, GET_DISPLAY_ATTRIBUTE_bad_config)
-{
-    for (auto display : mDisplays) {
-        hwc2_config_t config;
-        int32_t value;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(getInvalidConfig(display, &config));
-
-        for (auto attribute : requiredAttributes) {
-            ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config,
-                    attribute, &value, &err));
-            EXPECT_EQ(err, HWC2_ERROR_BAD_CONFIG) << "returned wrong error code";
-        }
-
-        for (auto attribute : optionalAttributes) {
-            ASSERT_NO_FATAL_FAILURE(getDisplayAttribute(display, config,
-                    attribute, &value, &err));
-            EXPECT_EQ(err, HWC2_ERROR_BAD_CONFIG) << "returned wrong error code";
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 will get display configs for active displays */
-TEST_F(Hwc2Test, GET_DISPLAY_CONFIGS)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 will not get display configs for bad displays */
-TEST_F(Hwc2Test, GET_DISPLAY_CONFIGS_bad_display)
-{
-    hwc2_display_t display;
-    std::vector<hwc2_config_t> configs;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs, &err));
-
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-    EXPECT_TRUE(configs.empty()) << "returned configs for bad display";
-}
-
-/* TESTCASE: Tests that the HWC2 will return the same config list multiple
- * times in a row. */
-TEST_F(Hwc2Test, GET_DISPLAY_CONFIGS_same)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs1, configs2;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs1));
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs2));
-
-        EXPECT_TRUE(std::is_permutation(configs1.begin(), configs1.end(),
-                configs2.begin())) << "returned two different config sets";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 does not return duplicate display configs */
-TEST_F(Hwc2Test, GET_DISPLAY_CONFIGS_duplicate)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        std::unordered_set<hwc2_config_t> configsSet(configs.begin(),
-                configs.end());
-        EXPECT_EQ(configs.size(), configsSet.size()) << "returned duplicate"
-                " configs";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 returns the active config for a display */
-TEST_F(Hwc2Test, GET_ACTIVE_CONFIG)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        for (auto config : configs) {
-            hwc2_config_t activeConfig;
-
-            ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-            ASSERT_NO_FATAL_FAILURE(getActiveConfig(display, &activeConfig));
-
-            EXPECT_EQ(activeConfig, config) << "failed to get active config";
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 does not return an active config for a bad
- * display. */
-TEST_F(Hwc2Test, GET_ACTIVE_CONFIG_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_config_t activeConfig;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getActiveConfig(display, &activeConfig, &err));
-
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 either begins with a valid active config
- * or returns an error when getActiveConfig is called. */
-TEST_F(Hwc2Test, GET_ACTIVE_CONFIG_bad_config)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-        hwc2_config_t activeConfig;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        if (configs.empty())
-            return;
-
-        ASSERT_NO_FATAL_FAILURE(getActiveConfig(display, &activeConfig, &err));
-        if (err == HWC2_ERROR_NONE) {
-            EXPECT_NE(std::count(configs.begin(), configs.end(),
-                    activeConfig), 0) << "active config is not found in "
-                    " configs for display";
-        } else {
-            EXPECT_EQ(err, HWC2_ERROR_BAD_CONFIG) << "returned wrong error code";
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can set every display config as an active
- * config */
-TEST_F(Hwc2Test, SET_ACTIVE_CONFIG)
-{
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        for (auto config : configs) {
-            EXPECT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an active config for a bad display */
-TEST_F(Hwc2Test, SET_ACTIVE_CONFIG_bad_display)
-{
-    hwc2_display_t display;
-    const hwc2_config_t config = 0;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an invalid active config */
-TEST_F(Hwc2Test, SET_ACTIVE_CONFIG_bad_config)
-{
-    for (auto display : mDisplays) {
-        hwc2_config_t config;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(getInvalidConfig(display, &config));
-
-        ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_CONFIG) << "returned wrong error code";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 returns a valid value for getDozeSupport. */
-TEST_F(Hwc2Test, GET_DOZE_SUPPORT)
-{
-    for (auto display : mDisplays) {
-        int32_t support = -1;
-
-        ASSERT_NO_FATAL_FAILURE(getDozeSupport(display, &support));
-
-        EXPECT_TRUE(support == 0 || support == 1) << "invalid doze support value";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get doze support for a bad display. */
-TEST_F(Hwc2Test, GET_DOZE_SUPPORT_bad_display)
-{
-    hwc2_display_t display;
-    int32_t support = -1;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getDozeSupport(display, &support, &err));
-
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can set all supported power modes */
-TEST_F(Hwc2Test, SET_POWER_MODE)
-{
-    for (auto display : mDisplays) {
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-
-        int32_t support = -1;
-        ASSERT_NO_FATAL_FAILURE(getDozeSupport(display, &support));
-        if (support != 1)
-            return;
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_DOZE));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display,
-                HWC2_POWER_MODE_DOZE_SUSPEND));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a power mode for a bad display. */
-TEST_F(Hwc2Test, SET_POWER_MODE_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-
-    ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-
-    int32_t support = -1;
-    ASSERT_NO_FATAL_FAILURE(getDozeSupport(display, &support, &err));
-    if (support != 1)
-        return;
-
-    ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_DOZE, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-
-    ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_DOZE_SUSPEND,
-            &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an invalid power mode value. */
-TEST_F(Hwc2Test, SET_POWER_MODE_bad_parameter)
-{
-    for (auto display : mDisplays) {
-        hwc2_power_mode_t mode = static_cast<hwc2_power_mode_t>(
-                HWC2_POWER_MODE_DOZE_SUSPEND + 1);
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, mode, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER) << "returned wrong error code "
-                << mode;
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 will return unsupported if it does not support
- * an optional power mode. */
-TEST_F(Hwc2Test, SET_POWER_MODE_unsupported)
-{
-    for (auto display : mDisplays) {
-        int32_t support = -1;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(getDozeSupport(display, &support, &err));
-        if (support == 1)
-            return;
-
-        ASSERT_EQ(support, 0) << "invalid doze support value";
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_DOZE,
-                &err));
-        EXPECT_EQ(err, HWC2_ERROR_UNSUPPORTED) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display,
-                HWC2_POWER_MODE_DOZE_SUSPEND, &err));
-        EXPECT_EQ(err, HWC2_ERROR_UNSUPPORTED) <<  "returned wrong error code";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can set the same power mode multiple times. */
-TEST_F(Hwc2Test, SET_POWER_MODE_stress)
-{
-    for (auto display : mDisplays) {
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-
-        int32_t support = -1;
-        ASSERT_NO_FATAL_FAILURE(getDozeSupport(display, &support));
-        if (support != 1)
-            return;
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_DOZE));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_DOZE));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display,
-                HWC2_POWER_MODE_DOZE_SUSPEND));
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display,
-                HWC2_POWER_MODE_DOZE_SUSPEND));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can enable and disable vsync on active
- * displays */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED)
-{
-    for (auto display : mDisplays) {
-        hwc2_callback_data_t data = reinterpret_cast<hwc2_callback_data_t>(
-                const_cast<char*>("data"));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_VSYNC, data,
-                []() { return; }));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 issues a valid vsync callback. */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED_callback)
-{
-    for (auto display : mDisplays) {
-        hwc2_display_t receivedDisplay;
-        int64_t receivedTimestamp;
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(enableVsync(display));
-
-        ASSERT_NO_FATAL_FAILURE(waitForVsync(&receivedDisplay,
-                &receivedTimestamp));
-
-        EXPECT_EQ(receivedDisplay, display) << "failed to get correct display";
-        EXPECT_GE(receivedTimestamp, 0) << "failed to get valid timestamp";
-
-        ASSERT_NO_FATAL_FAILURE(disableVsync(display));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot enable a vsync for a bad display */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_callback_data_t data = reinterpret_cast<hwc2_callback_data_t>(
-            const_cast<char*>("data"));
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_VSYNC, data,
-            []() { return; }));
-
-    ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-
-    ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot enable an invalid vsync value */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED_bad_parameter)
-{
-    for (auto display : mDisplays) {
-        hwc2_callback_data_t data = reinterpret_cast<hwc2_callback_data_t>(
-                const_cast<char*>("data"));
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_VSYNC, data,
-                []() { return; }));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_INVALID,
-                &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER) << "returned wrong error code";
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can enable and disable a vsync value multiple
- * times. */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED_stress)
-{
-    for (auto display : mDisplays) {
-        hwc2_callback_data_t data = reinterpret_cast<hwc2_callback_data_t>(
-                const_cast<char*>("data"));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(registerCallback(HWC2_CALLBACK_VSYNC, data,
-                []() { return; }));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE));
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can set a vsync enable value when the display
- * is off and no callback is registered. */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED_no_callback_no_power)
-{
-    const uint secs = 1;
-
-    for (auto display : mDisplays) {
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE));
-
-        sleep(secs);
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can set a vsync enable value when no callback
- * is registered. */
-TEST_F(Hwc2Test, SET_VSYNC_ENABLED_no_callback)
-{
-    const uint secs = 1;
-
-    for (auto display : mDisplays) {
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_ENABLE));
-
-        sleep(secs);
-
-        ASSERT_NO_FATAL_FAILURE(setVsyncEnabled(display, HWC2_VSYNC_DISABLE));
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 returns a display name for each display */
-TEST_F(Hwc2Test, GET_DISPLAY_NAME)
-{
-    for (auto display : mDisplays) {
-        std::string name;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayName(display, &name));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 does not return a display name for a bad
- * display */
-TEST_F(Hwc2Test, GET_DISPLAY_NAME_bad_display)
-{
-    hwc2_display_t display;
-    std::string name;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getDisplayName(display, &name, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can set basic composition types. */
-TEST_F(Hwc2Test, SET_LAYER_COMPOSITION_TYPE)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setComposition, advanceComposition));
-}
-
-/* TESTCASE: Tests that the HWC2 can update a basic composition type on a
- * layer. */
-TEST_F(Hwc2Test, SET_LAYER_COMPOSITION_TYPE_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setComposition, advanceComposition));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a composition type for a bad layer */
-TEST_F(Hwc2Test, SET_LAYER_COMPOSITION_TYPE_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setComposition));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a bad composition type */
-TEST_F(Hwc2Test, SET_LAYER_COMPOSITION_TYPE_bad_parameter)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadParameter(
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    hwc2_error_t* outErr) {
-
-                ASSERT_NO_FATAL_FAILURE(test->setLayerCompositionType(display,
-                        layer, HWC2_COMPOSITION_INVALID, outErr));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the cursor position of a layer. */
-TEST_F(Hwc2Test, SET_CURSOR_POSITION)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            ::setCursorPosition, advanceCursorPosition));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the cursor position of a layer. */
-TEST_F(Hwc2Test, SET_CURSOR_POSITION_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            ::setCursorPosition, advanceCursorPosition));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the cursor position of a layer when the
- * composition type has not been set to HWC2_COMPOSITION_CURSOR. */
-TEST_F(Hwc2Test, SET_CURSOR_POSITION_composition_type_unset)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    Hwc2TestLayer* testLayer, hwc2_error_t* outErr) {
-                const hwc_rect_t cursorPosition = testLayer->getCursorPosition();
-                EXPECT_NO_FATAL_FAILURE(test->setCursorPosition(display, layer,
-                        cursorPosition.left, cursorPosition.top, outErr));
-            },
-
-            advanceCursorPosition));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the cursor position of a bad
- * display. */
-TEST_F(Hwc2Test, SET_CURSOR_POSITION_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_layer_t layer = 0;
-    int32_t x = 0, y = 0;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(setCursorPosition(display, layer, x, y, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the cursor position of a bad layer. */
-TEST_F(Hwc2Test, SET_CURSOR_POSITION_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t badLayer,
-                    Hwc2TestLayer* testLayer, hwc2_error_t* outErr) {
-
-                const hwc_rect_t cursorPosition = testLayer->getCursorPosition();
-                EXPECT_NO_FATAL_FAILURE(test->setCursorPosition(display,
-                        badLayer, cursorPosition.left, cursorPosition.top,
-                        outErr));
-            }
-   ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set a blend mode value of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_BLEND_MODE)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setBlendMode, advanceBlendMode));
-}
-
-/* TESTCASE: Tests that the HWC2 can update a blend mode value of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_BLEND_MODE_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setBlendMode, advanceBlendMode));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a blend mode for a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_BLEND_MODE_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setBlendMode));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an invalid blend mode. */
-TEST_F(Hwc2Test, SET_LAYER_BLEND_MODE_bad_parameter)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadParameter(
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    hwc2_error_t* outErr) {
-
-                ASSERT_NO_FATAL_FAILURE(test->setLayerBlendMode(display,
-                        layer, HWC2_BLEND_MODE_INVALID, outErr));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the buffer of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_BUFFER)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setBuffer, advanceBuffer));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the buffer of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_BUFFER_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setBuffer, advanceBuffer));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the buffer of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_BUFFER_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t badLayer,
-                    Hwc2TestLayer* testLayer, hwc2_error_t* outErr) {
-
-                buffer_handle_t handle = nullptr;
-                android::base::unique_fd acquireFence;
-
-                /* If there is not available buffer for the given buffer
-                 * properties, it should not fail this test case */
-                if (testLayer->getBuffer(&handle, &acquireFence) == 0) {
-                    *outErr = HWC2_ERROR_BAD_LAYER;
-                    return;
-                }
-
-                ASSERT_NO_FATAL_FAILURE(test->setLayerBuffer(display, badLayer,
-                        handle, acquireFence, outErr));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set an invalid buffer for a layer. */
-TEST_F(Hwc2Test, SET_LAYER_BUFFER_bad_parameter)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadParameter(
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    hwc2_error_t* outErr) {
-
-                buffer_handle_t handle = nullptr;
-                int32_t acquireFence = -1;
-
-                ASSERT_NO_FATAL_FAILURE(test->setLayerBuffer(display, layer,
-                        handle, acquireFence, outErr));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the color of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_COLOR)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setColor, advanceColor));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the color of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_COLOR_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setColor, advanceColor));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the color of a layer when the
- * composition type has not been set to HWC2_COMPOSITION_SOLID_COLOR. */
-TEST_F(Hwc2Test, SET_LAYER_COLOR_composition_type_unset)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Basic,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    Hwc2TestLayer* testLayer, hwc2_error_t* outErr) {
-
-                EXPECT_NO_FATAL_FAILURE(test->setLayerColor(display, layer,
-                        testLayer->getColor(), outErr));
-            },
-
-            advanceColor));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the color of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_COLOR_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t badLayer,
-                    Hwc2TestLayer* testLayer, hwc2_error_t* outErr) {
-
-                EXPECT_NO_FATAL_FAILURE(test->setLayerColor(display, badLayer,
-                        testLayer->getColor(), outErr));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the dataspace of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_DATASPACE)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setDataspace, advanceDataspace));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the dataspace of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_DATASPACE_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setDataspace, advanceDataspace));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a dataspace for a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_DATASPACE_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setDataspace));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the display frame of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_DISPLAY_FRAME)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setDisplayFrame, advanceDisplayFrame));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the display frame of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_DISPLAY_FRAME_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setDisplayFrame, advanceDisplayFrame));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the display frame of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_DISPLAY_FRAME_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setDisplayFrame));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the plane alpha of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_PLANE_ALPHA)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setPlaneAlpha, advancePlaneAlpha));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the plane alpha of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_PLANE_ALPHA_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setPlaneAlpha, advancePlaneAlpha));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a plane alpha for a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_PLANE_ALPHA_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t badLayer,
-                    Hwc2TestLayer* testLayer, hwc2_error_t *outErr) {
-
-                    EXPECT_NO_FATAL_FAILURE(test->setLayerPlaneAlpha(display,
-                            badLayer, testLayer->getPlaneAlpha(), outErr));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the source crop of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_SOURCE_CROP)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setSourceCrop, advanceSourceCrop));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the source crop of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_SOURCE_CROP_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setSourceCrop, advanceSourceCrop));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the source crop of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_SOURCE_CROP_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setSourceCrop));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the surface damage of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_SURFACE_DAMAGE)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setSurfaceDamage, advanceSurfaceDamage));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the surface damage of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_SURFACE_DAMAGE_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setSurfaceDamage, advanceSurfaceDamage));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the surface damage of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_SURFACE_DAMAGE_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setSurfaceDamage));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the transform value of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_TRANSFORM)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperty(Hwc2TestCoverage::Complete,
-            setTransform, advanceTransform));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the transform value of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_TRANSFORM_update)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyUpdate(Hwc2TestCoverage::Complete,
-            setTransform, advanceTransform));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the transform for a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_TRANSFORM_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setTransform));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the visible region of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_VISIBLE_REGION)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperties(Hwc2TestCoverage::Basic, 5,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    Hwc2TestLayers* testLayers) {
-
-                EXPECT_NO_FATAL_FAILURE(test->setLayerVisibleRegion(display,
-                        layer, testLayers->getVisibleRegion(layer)));
-            },
-
-            advanceVisibleRegions));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the visible region of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_VISIBLE_REGION_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setVisibleRegion));
-}
-
-/* TESTCASE: Tests that the HWC2 can set the z order of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_Z_ORDER)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerProperties(Hwc2TestCoverage::Complete, 10,
-            [] (Hwc2Test* test, hwc2_display_t display, hwc2_layer_t layer,
-                    Hwc2TestLayers* testLayers) {
-
-                EXPECT_NO_FATAL_FAILURE(test->setLayerZOrder(display, layer,
-                        testLayers->getZOrder(layer)));
-            },
-
-            /* TestLayer z orders are set during the construction of TestLayers
-             * and cannot be updated. There is no need (or ability) to cycle
-             * through additional z order configurations. */
-            [] (Hwc2TestLayers* /*testLayers*/) {
-                return false;
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can update the z order of a layer. */
-TEST_F(Hwc2Test, SET_LAYER_Z_ORDER_update)
-{
-    const std::vector<uint32_t> zOrders = { static_cast<uint32_t>(0),
-            static_cast<uint32_t>(1), static_cast<uint32_t>(UINT32_MAX / 4),
-            static_cast<uint32_t>(UINT32_MAX / 2),
-            static_cast<uint32_t>(UINT32_MAX) };
-
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        for (auto config : configs) {
-            hwc2_layer_t layer;
-
-            ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-
-            ASSERT_NO_FATAL_FAILURE(createLayer(display, &layer));
-
-            for (uint32_t zOrder : zOrders) {
-                EXPECT_NO_FATAL_FAILURE(setLayerZOrder(display, layer, zOrder));
-            }
-
-            ASSERT_NO_FATAL_FAILURE(destroyLayer(display, layer));
-        }
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the z order of a bad layer. */
-TEST_F(Hwc2Test, SET_LAYER_Z_ORDER_bad_layer)
-{
-    ASSERT_NO_FATAL_FAILURE(setLayerPropertyBadLayer(Hwc2TestCoverage::Default,
-            setZOrder));
-}
-
-/* TESTCASE: Tests that the HWC2 can display a layer with basic property
- * coverage */
-TEST_F(Hwc2Test, VALIDATE_DISPLAY_basic)
-{
-    ASSERT_NO_FATAL_FAILURE(displayLayers(Hwc2TestCoverage::Basic, 1,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const std::vector<hwc2_layer_t>& layers,
-                    Hwc2TestLayers* /*testLayers*/) {
-
-                uint32_t numTypes, numRequests;
-                bool hasChanges = false;
-
-                EXPECT_NO_FATAL_FAILURE(test->validateDisplay(display, &numTypes,
-                        &numRequests, &hasChanges));
-                if (hasChanges)
-                    EXPECT_LE(numTypes, static_cast<uint32_t>(layers.size()))
-                            << "wrong number of requests";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can display 5 layers with default coverage. */
-TEST_F(Hwc2Test, VALIDATE_DISPLAY_default_5)
-{
-    ASSERT_NO_FATAL_FAILURE(displayLayers(Hwc2TestCoverage::Default, 5,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const std::vector<hwc2_layer_t>& layers,
-                    Hwc2TestLayers* /*testLayers*/) {
-
-                uint32_t numTypes, numRequests;
-                bool hasChanges = false;
-
-                EXPECT_NO_FATAL_FAILURE(test->validateDisplay(display, &numTypes,
-                        &numRequests, &hasChanges));
-                if (hasChanges)
-                    EXPECT_LE(numTypes, static_cast<uint32_t>(layers.size()))
-                            << "wrong number of requests";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot validate a bad display */
-TEST_F(Hwc2Test, VALIDATE_DISPLAY_bad_display)
-{
-    hwc2_display_t display;
-    uint32_t numTypes, numRequests;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(validateDisplay(display, &numTypes, &numRequests,
-            &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can get display requests after validating a
- * basic layer. */
-TEST_F(Hwc2Test, GET_DISPLAY_REQUESTS_basic)
-{
-    ASSERT_NO_FATAL_FAILURE(displayLayers(Hwc2TestCoverage::Basic, 1,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const std::vector<hwc2_layer_t>& layers,
-                    Hwc2TestLayers* /*testLayers*/) {
-
-                uint32_t numTypes, numRequests;
-                bool hasChanges = false;
-
-                ASSERT_NO_FATAL_FAILURE(test->validateDisplay(display, &numTypes,
-                        &numRequests, &hasChanges));
-                if (hasChanges)
-                    EXPECT_LE(numTypes, layers.size())
-                            << "wrong number of requests";
-
-                EXPECT_NO_FATAL_FAILURE(test->handleRequests(display, layers,
-                        numRequests));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get display requests from a bad display */
-TEST_F(Hwc2Test, GET_DISPLAY_REQUESTS_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_display_request_t displayRequests;
-    std::vector<hwc2_layer_t> layers;
-    std::vector<hwc2_layer_request_t> layerRequests;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    EXPECT_NO_FATAL_FAILURE(getDisplayRequests(display, &displayRequests,
-            &layers, &layerRequests, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get display requests from an non
- * validated display. */
-TEST_F(Hwc2Test, GET_DISPLAY_REQUESTS_not_validated)
-{
-    ASSERT_NO_FATAL_FAILURE(displayNonValidatedLayers(5,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    std::vector<hwc2_layer_t>* layers) {
-
-                hwc2_display_request_t displayRequests;
-                std::vector<hwc2_layer_request_t> layerRequests;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->getDisplayRequests(display,
-                        &displayRequests, layers, &layerRequests, &err));
-                EXPECT_EQ(err, HWC2_ERROR_NOT_VALIDATED)
-                        << "returned wrong error code";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can get changed composition types after
- * validating a basic layer. */
-TEST_F(Hwc2Test, GET_CHANGED_COMPOSITION_TYPES_basic)
-{
-    ASSERT_NO_FATAL_FAILURE(displayLayers(Hwc2TestCoverage::Basic, 1,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const std::vector<hwc2_layer_t>& layers,
-                    Hwc2TestLayers* testLayers) {
-
-                uint32_t numTypes, numRequests;
-                bool hasChanges = false;
-
-                ASSERT_NO_FATAL_FAILURE(test->validateDisplay(display, &numTypes,
-                        &numRequests, &hasChanges));
-                if (hasChanges)
-                    EXPECT_LE(numTypes, layers.size())
-                            << "wrong number of requests";
-
-                EXPECT_NO_FATAL_FAILURE(test->handleCompositionChanges(display,
-                        *testLayers, layers, numTypes));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get changed composition types from a bad
- * display */
-TEST_F(Hwc2Test, GET_CHANGED_COMPOSITION_TYPES_bad_display)
-{
-    hwc2_display_t display;
-    std::vector<hwc2_layer_t> layers;
-    std::vector<hwc2_composition_t> types;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    EXPECT_NO_FATAL_FAILURE(getChangedCompositionTypes(display, &layers,
-            &types, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get changed composition types from an non
- * validated display. */
-TEST_F(Hwc2Test, GET_CHANGED_COMPOSITION_TYPES_not_validated)
-{
-    ASSERT_NO_FATAL_FAILURE(displayNonValidatedLayers(5,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    std::vector<hwc2_layer_t>* layers) {
-
-                std::vector<hwc2_composition_t> types;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->getChangedCompositionTypes(
-                        display, layers, &types, &err));
-                EXPECT_EQ(err, HWC2_ERROR_NOT_VALIDATED)
-                        << "returned wrong error code";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can accept display changes after validating a
- * basic layer. */
-TEST_F(Hwc2Test, ACCEPT_DISPLAY_CHANGES_basic)
-{
-    ASSERT_NO_FATAL_FAILURE(displayLayers(Hwc2TestCoverage::Basic, 1,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const std::vector<hwc2_layer_t>& layers,
-                    Hwc2TestLayers* testLayers) {
-
-                uint32_t numTypes, numRequests;
-                bool hasChanges = false;
-
-                ASSERT_NO_FATAL_FAILURE(test->validateDisplay(display, &numTypes,
-                        &numRequests, &hasChanges));
-                if (hasChanges)
-                    EXPECT_LE(numTypes, layers.size())
-                            << "wrong number of requests";
-
-                ASSERT_NO_FATAL_FAILURE(test->handleCompositionChanges(display,
-                        *testLayers, layers, numTypes));
-
-                EXPECT_NO_FATAL_FAILURE(test->acceptDisplayChanges(display));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot accept display changes from a bad
- * display */
-TEST_F(Hwc2Test, ACCEPT_DISPLAY_CHANGES_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    EXPECT_NO_FATAL_FAILURE(acceptDisplayChanges(display, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot accept display changes from an non
- * validated display. */
-TEST_F(Hwc2Test, ACCEPT_DISPLAY_CHANGES_not_validated)
-{
-    ASSERT_NO_FATAL_FAILURE(displayNonValidatedLayers(5,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    std::vector<hwc2_layer_t>* /*layers*/) {
-
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->acceptDisplayChanges(display, &err));
-                EXPECT_EQ(err, HWC2_ERROR_NOT_VALIDATED)
-                        << "returned wrong error code";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 supports client target with required values */
-TEST_F(Hwc2Test, GET_CLIENT_TARGET_SUPPORT)
-{
-    ASSERT_NO_FATAL_FAILURE(setClientTargetSupport(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const Hwc2TestClientTargetSupport& testClientTargetSupport) {
-
-                const Area bufferArea = testClientTargetSupport.getBufferArea();
-                const android_pixel_format_t format = HAL_PIXEL_FORMAT_RGBA_8888;
-
-                ASSERT_NO_FATAL_FAILURE(test->getClientTargetSupport(display,
-                        bufferArea.width, bufferArea.height, format,
-                        testClientTargetSupport.getDataspace()));
-            },
-
-            advanceClientTargetSupport));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get client target support for a bad
- * display. */
-TEST_F(Hwc2Test, GET_CLIENT_TARGET_SUPPORT_bad_display)
-{
-    ASSERT_NO_FATAL_FAILURE(setClientTargetSupport(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t /*display*/,
-                    const Hwc2TestClientTargetSupport& testClientTargetSupport) {
-
-                const Area bufferArea = testClientTargetSupport.getBufferArea();
-                const android_pixel_format_t format = HAL_PIXEL_FORMAT_RGBA_8888;
-                hwc2_display_t badDisplay;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->getBadDisplay(&badDisplay));
-
-                ASSERT_NO_FATAL_FAILURE(test->getClientTargetSupport(badDisplay,
-                        bufferArea.width, bufferArea.height, format,
-                        testClientTargetSupport.getDataspace(), &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-            },
-
-            advanceClientTargetSupport));
-}
-
-/* TESTCASE: Tests that the HWC2 either supports or returns error unsupported
- * for a variety of client target values. */
-TEST_F(Hwc2Test, GET_CLIENT_TARGET_SUPPORT_unsupported)
-{
-    ASSERT_NO_FATAL_FAILURE(setClientTargetSupport(Hwc2TestCoverage::Complete,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const Hwc2TestClientTargetSupport& testClientTargetSupport) {
-
-                const Area bufferArea = testClientTargetSupport.getBufferArea();
-                const android_pixel_format_t format = HAL_PIXEL_FORMAT_RGBA_8888;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->getClientTargetSupport(display,
-                        bufferArea.width, bufferArea.height, format,
-                        testClientTargetSupport.getDataspace(), &err));
-                EXPECT_TRUE(err == HWC2_ERROR_NONE
-                        || err == HWC2_ERROR_UNSUPPORTED)
-                        << "returned wrong error code";
-            },
-
-            advanceClientTargetSupport));
-}
-
-/* TESTCASE: Tests that the HWC2 can set a client target buffer for a basic
- * layer. */
-TEST_F(Hwc2Test, SET_CLIENT_TARGET_basic)
-{
-    const Dataspace dataspace = Dataspace::UNKNOWN;
-    const hwc_region_t damage = { };
-    const size_t layerCnt = 1;
-
-    for (auto display : mDisplays) {
-        std::vector<hwc2_config_t> configs;
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_ON));
-
-        ASSERT_NO_FATAL_FAILURE(getDisplayConfigs(display, &configs));
-
-        for (auto config : configs) {
-            Area displayArea;
-            std::vector<hwc2_layer_t> layers;
-
-            ASSERT_NO_FATAL_FAILURE(setActiveConfig(display, config));
-            ASSERT_NO_FATAL_FAILURE(getActiveDisplayArea(display, &displayArea));
-
-            ASSERT_NO_FATAL_FAILURE(createLayers(display, &layers, layerCnt));
-            Hwc2TestLayers testLayers(layers, Hwc2TestCoverage::Basic,
-                    displayArea);
-
-            if (!testLayers.optimizeLayouts())
-                continue;
-
-            Hwc2TestClientTarget testClientTarget;
-
-            do {
-                std::set<hwc2_layer_t> clientLayers;
-                std::set<hwc2_layer_t> clearLayers;
-                uint32_t numTypes, numRequests;
-                bool hasChanges, skip;
-                bool flipClientTarget;
-                buffer_handle_t handle;
-                int32_t acquireFence;
-
-                ASSERT_NO_FATAL_FAILURE(setLayerProperties(display, layers,
-                        &testLayers, &skip));
-                if (skip)
-                    continue;
-
-                ASSERT_NO_FATAL_FAILURE(validateDisplay(display, &numTypes,
-                        &numRequests, &hasChanges));
-                if (hasChanges)
-                    EXPECT_LE(numTypes, layers.size())
-                            << "wrong number of requests";
-
-                ASSERT_NO_FATAL_FAILURE(handleCompositionChanges(display,
-                        testLayers, layers, numTypes, &clientLayers));
-                ASSERT_NO_FATAL_FAILURE(handleRequests(display, layers,
-                        numRequests, &clearLayers, &flipClientTarget));
-                ASSERT_EQ(testClientTarget.getBuffer(testLayers, clientLayers,
-                        clearLayers, flipClientTarget, displayArea, &handle,
-                        &acquireFence), 0);
-                EXPECT_NO_FATAL_FAILURE(setClientTarget(display, handle,
-                        acquireFence, dataspace, damage));
-
-                if (acquireFence >= 0)
-                    close(acquireFence);
-
-            } while (testLayers.advance());
-
-            ASSERT_NO_FATAL_FAILURE(destroyLayers(display, std::move(layers)));
-        }
-
-        ASSERT_NO_FATAL_FAILURE(setPowerMode(display, HWC2_POWER_MODE_OFF));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a client target for a bad display. */
-TEST_F(Hwc2Test, SET_CLIENT_TARGET_bad_display)
-{
-    hwc2_display_t display;
-    std::vector<hwc2_layer_t> layers;
-    const Area displayArea = {0, 0};
-    Hwc2TestLayers testLayers(layers, Hwc2TestCoverage::Default, displayArea);
-    std::set<hwc2_layer_t> clientLayers;
-    std::set<hwc2_layer_t> flipClientTargetLayers;
-    bool flipClientTarget = true;
-    const Dataspace dataspace = Dataspace::UNKNOWN;
-    const hwc_region_t damage = { };
-    buffer_handle_t handle;
-    int32_t acquireFence;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    Hwc2TestClientTarget testClientTarget;
-
-    ASSERT_EQ(testClientTarget.getBuffer(testLayers, clientLayers,
-            flipClientTargetLayers, flipClientTarget, displayArea, &handle,
-            &acquireFence), 0);
-
-    EXPECT_NO_FATAL_FAILURE(setClientTarget(display, handle, acquireFence,
-            dataspace, damage, &err));
-
-    if (acquireFence >= 0)
-        close(acquireFence);
-
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 default layer. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_default_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 default layers. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_default_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 3 default layers. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_default_3)
-{
-    const size_t layerCnt = 3;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 4 default layers. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_default_4)
-{
-    const size_t layerCnt = 4;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 5 default layers. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_default_5)
-{
-    const size_t layerCnt = 5;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 6 default layers. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_default_6)
-{
-    const size_t layerCnt = 6;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * blend mode. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_blend_mode_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::BlendMode, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::Transform, Hwc2TestCoverage::Basic},
-            {Hwc2TestPropertyName::PlaneAlpha, Hwc2TestCoverage::Basic}};
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * blend mode. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_blend_mode_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::BlendMode, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::PlaneAlpha, Hwc2TestCoverage::Basic}};
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * buffer. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_buffer_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::BufferArea, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * color. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_color_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Composition, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::Color, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * color. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_color_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Composition, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::BlendMode, Hwc2TestCoverage::Basic},
-            {Hwc2TestPropertyName::PlaneAlpha, Hwc2TestCoverage::Basic},
-            {Hwc2TestPropertyName::Color, Hwc2TestCoverage::Basic}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * composition. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_composition_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Composition, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * cursor. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_cursor_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Composition, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::CursorPosition, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * cursor. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_cursor_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Composition, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::CursorPosition, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Basic}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * dataspace. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_dataspace_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Dataspace, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * display frame. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_display_frame_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * display frame. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_display_frame_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 3 layers with complete coverage of
- * display frame. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_display_frame_3)
-{
-    const size_t layerCnt = 3;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 4 layers with complete coverage of
- * display frame. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_display_frame_4)
-{
-    const size_t layerCnt = 4;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * plane alpha. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_plane_alpha_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::BlendMode, Hwc2TestCoverage::Basic},
-            {Hwc2TestPropertyName::PlaneAlpha, Hwc2TestCoverage::Complete}};
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * plane alpha. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_plane_alpha_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::BlendMode, Hwc2TestCoverage::Basic},
-            {Hwc2TestPropertyName::PlaneAlpha, Hwc2TestCoverage::Complete}};
-    bool optimize = false;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * source crop. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_source_crop_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::SourceCrop, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * source crop. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_source_crop_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::SourceCrop, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * surface damage. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_surface_damage_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::SurfaceDamage, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * transform. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_transform_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Transform, Hwc2TestCoverage::Complete}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with complete coverage of
- * transform. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_transform_2)
-{
-    const size_t layerCnt = 2;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions =
-            {{Hwc2TestPropertyName::Transform, Hwc2TestCoverage::Complete},
-            {Hwc2TestPropertyName::DisplayFrame, Hwc2TestCoverage::Basic}};
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with complete coverage of
- * basic. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_basic_1)
-{
-    const size_t layerCnt = 1;
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Basic;
-    std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage> exceptions;
-    bool optimize = true;
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplays(layerCnt, coverage, exceptions,
-            optimize));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot present a bad display.  */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_bad_display)
-{
-    hwc2_display_t display;
-    int32_t presentFence;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(presentDisplay(display, &presentFence, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot present an unvalidated display. */
-TEST_F(Hwc2Test, PRESENT_DISPLAY_not_validated)
-{
-    ASSERT_NO_FATAL_FAILURE(displayLayers(Hwc2TestCoverage::Default, 1,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    const std::vector<hwc2_layer_t>& /*layers*/,
-                    Hwc2TestLayers* /*testLayers*/) {
-
-                int32_t presentFence;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->setPowerMode(display,
-                        HWC2_POWER_MODE_ON));
-                ASSERT_NO_FATAL_FAILURE(test->enableVsync(display));
-
-                ASSERT_NO_FATAL_FAILURE(test->waitForVsync());
-
-                ASSERT_NO_FATAL_FAILURE(test->presentDisplay(display,
-                        &presentFence, &err));
-                EXPECT_EQ(err, HWC2_ERROR_NOT_VALIDATED)
-                        << "returned wrong error code";
-
-                ASSERT_NO_FATAL_FAILURE(test->disableVsync(display));
-                ASSERT_NO_FATAL_FAILURE(test->setPowerMode(display,
-                        HWC2_POWER_MODE_OFF));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get release fences from a bad display. */
-TEST_F(Hwc2Test, GET_RELEASE_FENCES_bad_display)
-{
-    hwc2_display_t display;
-    std::vector<hwc2_layer_t> layers;
-    std::vector<int32_t> fences;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getReleaseFences(display, &layers, &fences, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-static const std::array<ColorMode, 9> androidColorModes = {{
-    ColorMode::NATIVE,
-    ColorMode::STANDARD_BT601_625,
-    ColorMode::STANDARD_BT601_625_UNADJUSTED,
-    ColorMode::STANDARD_BT601_525,
-    ColorMode::STANDARD_BT601_525_UNADJUSTED,
-    ColorMode::STANDARD_BT709,
-    ColorMode::DCI_P3,
-    ColorMode::SRGB,
-    ColorMode::ADOBE_RGB,
-}};
-
-/* TESTCASE: Tests that the HWC2 can get the color modes for a display. The
- * display must support ColorMode::NATIVE */
-TEST_F(Hwc2Test, GET_COLOR_MODES)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                std::vector<ColorMode> colorModes;
-
-                ASSERT_NO_FATAL_FAILURE(test->getColorModes(display,
-                        &colorModes));
-
-                EXPECT_NE(std::count(colorModes.begin(), colorModes.end(),
-                        ColorMode::NATIVE), 0) << "all displays"
-                        " must support ColorMode::NATIVE";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get color modes from a bad display. */
-TEST_F(Hwc2Test, GET_COLOR_MODES_bad_display)
-{
-    hwc2_display_t display;
-    std::vector<ColorMode> colorModes;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getColorModes(display, &colorModes, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 can set the required color mode on a display. */
-TEST_F(Hwc2Test, SET_COLOR_MODES)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                const ColorMode colorMode = ColorMode::NATIVE;
-
-                EXPECT_NO_FATAL_FAILURE(test->setColorMode(display, colorMode));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set a color mode on a bad display. */
-TEST_F(Hwc2Test, SET_COLOR_MODES_bad_display)
-{
-    hwc2_display_t display;
-    const ColorMode colorMode = ColorMode::NATIVE;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(setColorMode(display, colorMode, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an invalid color mode. */
-TEST_F(Hwc2Test, SET_COLOR_MODES_bad_parameter)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                const ColorMode colorMode = static_cast<ColorMode>(-1);
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->setColorMode(display, colorMode,
-                        &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER)
-                        << "returned wrong error code";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 either supports or returns error unsupported
- * for all valid color modes. */
-TEST_F(Hwc2Test, SET_COLOR_MODES_unsupported)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                for (auto colorMode : androidColorModes) {
-                    hwc2_error_t err = HWC2_ERROR_NONE;
-
-                    ASSERT_NO_FATAL_FAILURE(test->setColorMode(display,
-                            colorMode, &err));
-
-                    EXPECT_TRUE(err == HWC2_ERROR_NONE
-                            || err == HWC2_ERROR_UNSUPPORTED)
-                            << "returned wrong error code";
-                }
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 gets the HDR capabilities for a display and
- * test if they are valid. */
-TEST_F(Hwc2Test, GET_HDR_CAPABILITIES)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                std::vector<android_hdr_t> hdrCapabilities;
-                float maxLuminance, maxAverageLuminance, minLuminance;
-
-                EXPECT_NO_FATAL_FAILURE(test->getHdrCapabilities(display,
-                        &hdrCapabilities, &maxLuminance, &maxAverageLuminance,
-                        &minLuminance));
-
-                if (hdrCapabilities.empty())
-                    return;
-
-                EXPECT_GE(maxLuminance, maxAverageLuminance);
-                EXPECT_GE(maxAverageLuminance, minLuminance);
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot get hdr capabilities from a bad display */
-TEST_F(Hwc2Test, GET_HDR_CAPABILITIES_bad_display)
-{
-    hwc2_display_t display;
-    std::vector<android_hdr_t> hdrCapabilities;
-    float maxLuminance, maxAverageLuminance, minLuminance;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(getHdrCapabilities(display, &hdrCapabilities,
-            &maxLuminance, &maxAverageLuminance, &minLuminance, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-static const std::array<float, 16> identityMatrix = {{
-    1.0,  0.0,  0.0,  0.0,
-    0.0,  1.0,  0.0,  0.0,
-    0.0,  0.0,  1.0,  0.0,
-    0.0,  0.0,  0.0,  1.0,
-}};
-
-/* Values for the color transform matrices were precomputed using the source code
- * in surfaceflinger/Effects/Daltonizer.cpp. */
-
-static const std::array<const std::array<float, 16>, 5> exampleMatrices = {{
-    identityMatrix,
-    /* Converts RGB color to the XYZ space */
-    {{ 0.4124, 0.2126, 0.0193, 0,
-       0.3576, 0.7152, 0.1192, 0,
-       0.1805, 0.0722, 0.9505, 0,
-       0     , 0     , 0     , 1 }},
-    /* Protanomaly */
-    {{ 0.068493,  0.931506,  0,  0,
-       0.068493,  0.931507,  0,  0,
-       0.013626, -0.013626,  1,  0,
-       0,         0,         0,  1 }},
-    /* Deuteranomaly */
-    {{ 0.288299, 0.711701,  0,  0,
-       0.052709, 0.947291,  0,  0,
-      -0.257912, 0.257912,  1,  0,
-       0,        0,         0,  1 }},
-    /* Tritanomaly */
-    {{ 1, -0.805712, 0.805712,  0,
-       0,  0.378838, 0.621162,  0,
-       0,  0.104823, 0.895177,  0,
-       0,  0,        0,         1 }},
-}};
-
-/* TESTCASE: Tests that the HWC2 can set the identity color transform */
-TEST_F(Hwc2Test, SET_COLOR_TRANSFORM)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                EXPECT_NO_FATAL_FAILURE(test->setColorTransform(display,
-                        identityMatrix, HAL_COLOR_TRANSFORM_IDENTITY));
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set the color transform for a bad
- * display. */
-TEST_F(Hwc2Test, SET_COLOR_TRANSFORM_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(setColorTransform(display, identityMatrix,
-            HAL_COLOR_TRANSFORM_IDENTITY, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an invalid color transform. */
-TEST_F(Hwc2Test, SET_COLOR_TRANSFORM_bad_parameter)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                const android_color_transform_t hint =
-                        static_cast<android_color_transform_t>(-1);
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->setColorTransform(display,
-                        identityMatrix, hint, &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER)
-                        << "returned wrong error code";
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 can set an arbitrary color matrix. */
-TEST_F(Hwc2Test, SET_COLOR_TRANSFORM_arbitrary_matrix)
-{
-    ASSERT_NO_FATAL_FAILURE(setActiveDisplayConfig(
-            [] (Hwc2Test* test, hwc2_display_t display) {
-
-                const android_color_transform_t hint =
-                        HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX;
-
-                for (const std::array<float, 16>& matrix : exampleMatrices) {
-                    EXPECT_NO_FATAL_FAILURE(test->setColorTransform(display,
-                            matrix, hint));
-                }
-            }
-    ));
-}
-
-/* TESTCASE: Tests that the HWC2 create an destory virtual displays. */
-TEST_F(Hwc2Test, CREATE_DESTROY_VIRTUAL_DISPLAY)
-{
-    ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(Hwc2TestCoverage::Complete,
-            [] (Hwc2Test* /*test*/, hwc2_display_t /*display*/,
-                    Hwc2TestVirtualDisplay* /*testVirtualDisplay*/) { }));
-}
-
-/* TESTCASE: Tests that the HWC2 can create and destroy multiple virtual
- * displays. */
-TEST_F(Hwc2Test, CREATE_DESTROY_VIRTUAL_DISPLAY_multiple)
-{
-    Hwc2TestVirtualDisplay testVirtualDisplay(Hwc2TestCoverage::Complete);
-    std::vector<hwc2_display_t> displays;
-
-    do {
-        const UnsignedArea& dimension =
-                testVirtualDisplay.getDisplayDimension();
-        android_pixel_format_t desiredFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-        hwc2_display_t display;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(dimension.width,
-                dimension.height, &desiredFormat, &display, &err));
-
-        EXPECT_TRUE(err == HWC2_ERROR_NONE || err == HWC2_ERROR_NO_RESOURCES
-                || err == HWC2_ERROR_UNSUPPORTED) << "returned wrong error code";
-        EXPECT_GE(desiredFormat, 0) << "invalid format";
-
-        if (err == HWC2_ERROR_NONE)
-            displays.push_back(display);
-
-    } while (testVirtualDisplay.advance());
-
-    for (hwc2_display_t display : displays) {
-        EXPECT_NO_FATAL_FAILURE(destroyVirtualDisplay(display));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 cannot destroy a bad virtual displays.  */
-TEST_F(Hwc2Test, DESTROY_VIRTUAL_DISPLAY_bad_display)
-{
-    hwc2_display_t display;
-    hwc2_error_t err = HWC2_ERROR_NONE;
-
-    ASSERT_NO_FATAL_FAILURE(getBadDisplay(&display));
-
-    ASSERT_NO_FATAL_FAILURE(destroyVirtualDisplay(display, &err));
-    EXPECT_EQ(err, HWC2_ERROR_BAD_DISPLAY) << "returned wrong error code";
-}
-
-/* TESTCASE: Tests that the HWC2 cannot destroy a physical display. */
-TEST_F(Hwc2Test, DESTROY_VIRTUAL_DISPLAY_bad_parameter)
-{
-    hwc2_error_t err = HWC2_ERROR_NONE;
-    for (auto display : mDisplays) {
-        ASSERT_NO_FATAL_FAILURE(destroyVirtualDisplay(display, &err));
-        EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER) << "returned wrong error code";
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can get the max virtual display count. */
-TEST_F(Hwc2Test, GET_MAX_VIRTUAL_DISPLAY_COUNT)
-{
-    uint32_t maxCnt;
-
-    ASSERT_NO_FATAL_FAILURE(getMaxVirtualDisplayCount(&maxCnt));
-}
-
-/* TESTCASE: Tests that the HWC2 returns the same max virtual display count for
- * each call. */
-TEST_F(Hwc2Test, GET_MAX_VIRTUAL_DISPLAY_COUNT_duplicate)
-{
-    uint32_t maxCnt1, maxCnt2;
-
-    ASSERT_NO_FATAL_FAILURE(getMaxVirtualDisplayCount(&maxCnt1));
-    ASSERT_NO_FATAL_FAILURE(getMaxVirtualDisplayCount(&maxCnt2));
-
-    EXPECT_EQ(maxCnt1, maxCnt2) << "returned two different max virtual display"
-            " counts";
-}
-
-/* TESTCASE: Tests that the HWC2 can create the max number of virtual displays
- * that it reports. */
-TEST_F(Hwc2Test, GET_MAX_VIRTUAL_DISPLAY_COUNT_create_max)
-{
-    std::vector<hwc2_display_t> displays;
-    uint32_t maxCnt;
-
-    ASSERT_NO_FATAL_FAILURE(getMaxVirtualDisplayCount(&maxCnt));
-
-    while (displays.size() < maxCnt) {
-        uint32_t width = 1920, height = 1080;
-        android_pixel_format_t desiredFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-        hwc2_display_t display;
-        hwc2_error_t err = HWC2_ERROR_NONE;
-
-        ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(width, height,
-                    &desiredFormat, &display, &err));
-
-        EXPECT_TRUE(err == HWC2_ERROR_NONE || err == HWC2_ERROR_UNSUPPORTED)
-                << "returned wrong error code";
-        if (err != HWC2_ERROR_NONE)
-            break;
-
-        displays.push_back(display);
-    }
-
-    for (hwc2_display_t display : displays) {
-        EXPECT_NO_FATAL_FAILURE(destroyVirtualDisplay(display));
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can set an output buffer for a virtual
- * display. */
-TEST_F(Hwc2Test, SET_OUTPUT_BUFFER)
-{
-    ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(Hwc2TestCoverage::Complete,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    Hwc2TestVirtualDisplay* testVirtualDisplay) {
-
-                buffer_handle_t handle;
-                android::base::unique_fd acquireFence;
-
-                if (testVirtualDisplay->getOutputBuffer(&handle, &acquireFence) >= 0)
-                    EXPECT_NO_FATAL_FAILURE(test->setOutputBuffer(display,
-                            handle, acquireFence));
-            }));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an output buffer for a bad display */
-TEST_F(Hwc2Test, SET_OUTPUT_BUFFER_bad_display)
-{
-    ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t /*display*/,
-                    Hwc2TestVirtualDisplay* testVirtualDisplay) {
-
-                hwc2_display_t badDisplay;
-                buffer_handle_t handle;
-                android::base::unique_fd acquireFence;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->getBadDisplay(&badDisplay));
-
-                if (testVirtualDisplay->getOutputBuffer(&handle, &acquireFence) < 0)
-                    return;
-
-                ASSERT_NO_FATAL_FAILURE(test->setOutputBuffer(badDisplay,
-                        handle, acquireFence, &err));
-                EXPECT_TRUE(err == HWC2_ERROR_BAD_DISPLAY)
-                        << "returned wrong error code";
-            }));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an invalid output buffer. */
-TEST_F(Hwc2Test, SET_OUTPUT_BUFFER_bad_parameter)
-{
-    ASSERT_NO_FATAL_FAILURE(createVirtualDisplay(Hwc2TestCoverage::Default,
-            [] (Hwc2Test* test, hwc2_display_t display,
-                    Hwc2TestVirtualDisplay* /*testVirtualDisplay*/) {
-
-                const buffer_handle_t handle = nullptr;
-                uint32_t releaseFence = -1;
-                hwc2_error_t err = HWC2_ERROR_NONE;
-
-                ASSERT_NO_FATAL_FAILURE(test->setOutputBuffer(display, handle,
-                        releaseFence, &err));
-                EXPECT_EQ(err, HWC2_ERROR_BAD_PARAMETER)
-                        << "returned wrong error code";
-            }));
-}
-
-/* TESTCASE: Tests that the HWC2 cannot set an output buffer for non virtual
- * display */
-TEST_F(Hwc2Test, SET_OUTPUT_BUFFER_unsupported)
-{
-    for (auto display : mDisplays) {
-        Hwc2TestVirtualDisplay testVirtualDisplay(Hwc2TestCoverage::Complete);
-
-        do {
-            buffer_handle_t handle;
-            android::base::unique_fd acquireFence;
-            hwc2_error_t err = HWC2_ERROR_NONE;
-
-            if (testVirtualDisplay.getOutputBuffer(&handle, &acquireFence) < 0)
-                continue;
-
-            ASSERT_NO_FATAL_FAILURE(setOutputBuffer(display, handle,
-                    acquireFence, &err));
-            EXPECT_EQ(err, HWC2_ERROR_UNSUPPORTED) << "returned wrong error code";
-
-        } while (testVirtualDisplay.advance());
-    }
-}
-
-/* TESTCASE: Tests that the HWC2 can dump debug information. */
-TEST_F(Hwc2Test, DUMP)
-{
-    std::string buffer;
-
-    ASSERT_NO_FATAL_FAILURE(dump(&buffer));
-}
-
-/*
- * TODO(b/64724708): Hwc2TestPropertyName::BufferArea MUST be default for all
- * virtual display tests as we don't handle this case correctly.
- *
- * Only default dataspace is supported in our drawing code.
- */
-const std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage>
-        virtualDisplayExceptions =
-        {{Hwc2TestPropertyName::BufferArea, Hwc2TestCoverage::Default},
-        {Hwc2TestPropertyName::Dataspace, Hwc2TestCoverage::Default}};
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with default coverage on a
- * virtual display. */
-TEST_F(Hwc2Test, PRESENT_VIRTUAL_DISPLAY_default_1)
-{
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    const size_t layerCnt = 1;
-    ASSERT_NO_FATAL_FAILURE(createAndPresentVirtualDisplay(layerCnt, coverage,
-            virtualDisplayExceptions));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 1 layer with basic coverage on a
- * virtual display. */
-TEST_F(Hwc2Test, PRESENT_VIRTUAL_DISPLAY_basic_1)
-{
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Basic;
-    const size_t layerCnt = 1;
-    ASSERT_NO_FATAL_FAILURE(createAndPresentVirtualDisplay(layerCnt, coverage,
-            virtualDisplayExceptions));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 2 layers with default coverage on a
- * virtual display. */
-TEST_F(Hwc2Test, PRESENT_VIRTUAL_DISPLAY_default_2)
-{
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    const size_t layerCnt = 2;
-    ASSERT_NO_FATAL_FAILURE(createAndPresentVirtualDisplay(layerCnt, coverage,
-            virtualDisplayExceptions));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 3 layers with default coverage on a
- * virtual display. */
-TEST_F(Hwc2Test, PRESENT_VIRTUAL_DISPLAY_default_3)
-{
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    const size_t layerCnt = 3;
-    ASSERT_NO_FATAL_FAILURE(createAndPresentVirtualDisplay(layerCnt, coverage,
-            virtualDisplayExceptions));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 4 layers with default coverage on a
- * virtual display. */
-TEST_F(Hwc2Test, PRESENT_VIRTUAL_DISPLAY_default_4)
-{
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    const size_t layerCnt = 4;
-    ASSERT_NO_FATAL_FAILURE(createAndPresentVirtualDisplay(layerCnt, coverage,
-            virtualDisplayExceptions));
-}
-
-/* TESTCASE: Tests that the HWC2 can present 5 layers with default coverage on a
- * virtual display. */
-TEST_F(Hwc2Test, PRESENT_VIRTUAL_DISPLAY_default_5)
-{
-    Hwc2TestCoverage coverage = Hwc2TestCoverage::Default;
-    const size_t layerCnt = 5;
-    ASSERT_NO_FATAL_FAILURE(createAndPresentVirtualDisplay(layerCnt, coverage,
-            virtualDisplayExceptions));
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestBuffer.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestBuffer.cpp
deleted file mode 100644
index fcd0d31..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestBuffer.cpp
+++ /dev/null
@@ -1,798 +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"
-
-#include <mutex>
-#include <array>
-#include <sstream>
-#include <algorithm>
-
-#include <gui/Surface.h>
-#include <gui/BufferItemConsumer.h>
-
-#include <ui/GraphicBuffer.h>
-#include <android/hardware/graphics/common/1.0/types.h>
-#include <math/vec4.h>
-
-#include <GLES3/gl3.h>
-#include <SkImageEncoder.h>
-#include <SkStream.h>
-#include "Hwc2TestBuffer.h"
-#include "Hwc2TestLayers.h"
-
-using namespace android;
-using android::hardware::graphics::common::V1_0::BufferUsage;
-
-/* Returns a fence from egl */
-typedef void (*FenceCallback)(int32_t fence, void* callbackArgs);
-
-/* Returns fence to fence generator */
-static void setFence(int32_t fence, void* fenceGenerator);
-
-
-/* Used to receive the surfaces and fences from egl. The egl buffers are thrown
- * away. The fences are sent to the requester via a callback */
-class Hwc2TestSurfaceManager {
-public:
-    /* Listens for a new frame, detaches the buffer and returns the fence
-     * through saved callback. */
-    class BufferListener : public ConsumerBase::FrameAvailableListener {
-    public:
-        BufferListener(sp<IGraphicBufferConsumer> consumer,
-                FenceCallback callback, void* callbackArgs)
-            : mConsumer(consumer),
-              mCallback(callback),
-              mCallbackArgs(callbackArgs) { }
-
-        void onFrameAvailable(const BufferItem& /*item*/)
-        {
-            BufferItem item;
-
-            if (mConsumer->acquireBuffer(&item, 0))
-                return;
-            if (mConsumer->detachBuffer(item.mSlot))
-                return;
-
-            mCallback(item.mFence->dup(), mCallbackArgs);
-        }
-
-    private:
-        sp<IGraphicBufferConsumer> mConsumer;
-        FenceCallback mCallback;
-        void* mCallbackArgs;
-    };
-
-    /* Creates a buffer listener that waits on a new frame from the buffer
-     * queue. */
-    void initialize(const Area& bufferArea, android_pixel_format_t format,
-            FenceCallback callback, void* callbackArgs)
-    {
-        sp<IGraphicBufferProducer> producer;
-        sp<IGraphicBufferConsumer> consumer;
-        BufferQueue::createBufferQueue(&producer, &consumer);
-
-        consumer->setDefaultBufferSize(bufferArea.width, bufferArea.height);
-        consumer->setDefaultBufferFormat(format);
-
-        mBufferItemConsumer = new BufferItemConsumer(consumer, 0);
-
-        mListener = new BufferListener(consumer, callback, callbackArgs);
-        mBufferItemConsumer->setFrameAvailableListener(mListener);
-
-        mSurface = new Surface(producer, true);
-    }
-
-    /* Used by Egl manager. The surface is never displayed. */
-    sp<Surface> getSurface() const
-    {
-        return mSurface;
-    }
-
-private:
-    sp<BufferItemConsumer> mBufferItemConsumer;
-    sp<BufferListener> mListener;
-    /* Used by Egl manager. The surface is never displayed */
-    sp<Surface> mSurface;
-};
-
-
-/* Used to generate valid fences. It is not possible to create a dummy sync
- * fence for testing. Egl can generate buffers along with a valid fence.
- * The buffer cannot be guaranteed to be the same format across all devices so
- * a CPU filled buffer is used instead. The Egl fence is used along with the
- * CPU filled buffer. */
-class Hwc2TestEglManager {
-public:
-    Hwc2TestEglManager()
-        : mEglDisplay(EGL_NO_DISPLAY),
-          mEglSurface(EGL_NO_SURFACE),
-          mEglContext(EGL_NO_CONTEXT) { }
-
-    ~Hwc2TestEglManager()
-    {
-        cleanup();
-    }
-
-    int initialize(sp<Surface> surface)
-    {
-        mSurface = surface;
-
-        mEglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
-        if (mEglDisplay == EGL_NO_DISPLAY) return false;
-
-        EGLint major;
-        EGLint minor;
-        if (!eglInitialize(mEglDisplay, &major, &minor)) {
-            ALOGW("Could not initialize EGL");
-            return false;
-        }
-
-        /* We're going to use a 1x1 pbuffer surface later on
-         * The configuration distance doesn't really matter for what we're
-         * trying to do */
-        EGLint configAttrs[] = {
-                EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
-                EGL_RED_SIZE, 8,
-                EGL_GREEN_SIZE, 8,
-                EGL_BLUE_SIZE, 8,
-                EGL_ALPHA_SIZE, 0,
-                EGL_DEPTH_SIZE, 24,
-                EGL_STENCIL_SIZE, 0,
-                EGL_NONE
-        };
-
-        EGLConfig configs[1];
-        EGLint configCnt;
-        if (!eglChooseConfig(mEglDisplay, configAttrs, configs, 1,
-                &configCnt)) {
-            ALOGW("Could not select EGL configuration");
-            eglReleaseThread();
-            eglTerminate(mEglDisplay);
-            return false;
-        }
-
-        if (configCnt <= 0) {
-            ALOGW("Could not find EGL configuration");
-            eglReleaseThread();
-            eglTerminate(mEglDisplay);
-            return false;
-        }
-
-        /* These objects are initialized below but the default "null" values are
-         * used to cleanup properly at any point in the initialization sequence */
-        EGLint attrs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
-        mEglContext = eglCreateContext(mEglDisplay, configs[0], EGL_NO_CONTEXT,
-                attrs);
-        if (mEglContext == EGL_NO_CONTEXT) {
-            ALOGW("Could not create EGL context");
-            cleanup();
-            return false;
-        }
-
-        EGLint surfaceAttrs[] = { EGL_NONE };
-        mEglSurface = eglCreateWindowSurface(mEglDisplay, configs[0],
-                mSurface.get(), surfaceAttrs);
-        if (mEglSurface == EGL_NO_SURFACE) {
-            ALOGW("Could not create EGL surface");
-            cleanup();
-            return false;
-        }
-
-        if (!eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) {
-            ALOGW("Could not change current EGL context");
-            cleanup();
-            return false;
-        }
-
-        return true;
-    }
-
-    void makeCurrent() const
-    {
-        eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext);
-    }
-
-    void present() const
-    {
-        eglSwapBuffers(mEglDisplay, mEglSurface);
-    }
-
-private:
-    void cleanup()
-    {
-        if (mEglDisplay == EGL_NO_DISPLAY)
-            return;
-        if (mEglSurface != EGL_NO_SURFACE)
-            eglDestroySurface(mEglDisplay, mEglSurface);
-        if (mEglContext != EGL_NO_CONTEXT)
-            eglDestroyContext(mEglDisplay, mEglContext);
-
-        eglMakeCurrent(mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE,
-                EGL_NO_CONTEXT);
-        eglReleaseThread();
-        eglTerminate(mEglDisplay);
-    }
-
-    sp<Surface> mSurface;
-    EGLDisplay mEglDisplay;
-    EGLSurface mEglSurface;
-    EGLContext mEglContext;
-};
-
-
-static const std::array<vec2, 4> triangles = {{
-    {  1.0f,  1.0f },
-    { -1.0f,  1.0f },
-    {  1.0f, -1.0f },
-    { -1.0f, -1.0f },
-}};
-
-class Hwc2TestFenceGenerator {
-public:
-
-    Hwc2TestFenceGenerator()
-    {
-        mSurfaceManager.initialize({1, 1}, HAL_PIXEL_FORMAT_RGBA_8888,
-                setFence, this);
-
-        if (!mEglManager.initialize(mSurfaceManager.getSurface()))
-            return;
-
-        mEglManager.makeCurrent();
-
-        glClearColor(0.0, 0.0, 0.0, 1.0);
-        glEnableVertexAttribArray(0);
-    }
-
-    ~Hwc2TestFenceGenerator()
-    {
-        if (mFence >= 0)
-            close(mFence);
-        mFence = -1;
-
-        mEglManager.makeCurrent();
-    }
-
-    /* It is not possible to simply generate a fence. The easiest way is to
-     * generate a buffer using egl and use the associated fence. The buffer
-     * cannot be guaranteed to be a certain format across all devices using this
-     * method. Instead the buffer is generated using the CPU */
-    int32_t get()
-    {
-        if (mFence >= 0) {
-            return dup(mFence);
-        }
-
-        std::unique_lock<std::mutex> lock(mMutex);
-
-        /* If the pending is still set to false and times out, we cannot recover.
-         * Set an error and return */
-        while (mPending != false) {
-            if (mCv.wait_for(lock, std::chrono::seconds(2)) == std::cv_status::timeout)
-                return -ETIME;
-        }
-
-        /* Generate a fence. The fence will be returned through the setFence
-         * callback */
-        mEglManager.makeCurrent();
-
-        glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, triangles.data());
-        glClear(GL_COLOR_BUFFER_BIT);
-
-        mEglManager.present();
-
-        /* Wait for the setFence callback */
-        while (mPending != true) {
-            if (mCv.wait_for(lock, std::chrono::seconds(2)) == std::cv_status::timeout)
-                return -ETIME;
-        }
-
-        mPending = false;
-
-        return dup(mFence);
-    }
-
-    /* Callback that sets the fence */
-    void set(int32_t fence)
-    {
-        mFence = fence;
-        mPending = true;
-
-        mCv.notify_all();
-    }
-
-private:
-
-    Hwc2TestSurfaceManager mSurfaceManager;
-    Hwc2TestEglManager mEglManager;
-
-    std::mutex mMutex;
-    std::condition_variable mCv;
-
-    int32_t mFence = -1;
-    bool mPending = false;
-};
-
-
-static void setFence(int32_t fence, void* fenceGenerator)
-{
-    static_cast<Hwc2TestFenceGenerator*>(fenceGenerator)->set(fence);
-}
-
-
-/* Sets the pixel of a buffer given the location, format, stride and color.
- * Currently only supports RGBA_8888 */
-static void setColor(int32_t x, int32_t y,
-        android_pixel_format_t format, uint32_t stride, uint8_t* img, uint8_t r,
-        uint8_t g, uint8_t b, uint8_t a)
-{
-       switch (format) {
-       case HAL_PIXEL_FORMAT_RGBA_8888:
-           img[(y * stride + x) * 4 + 0] = r;
-           img[(y * stride + x) * 4 + 1] = g;
-           img[(y * stride + x) * 4 + 2] = b;
-           img[(y * stride + x) * 4 + 3] = a;
-           break;
-       default:
-           break;
-       }
-}
-
-Hwc2TestBuffer::Hwc2TestBuffer()
-    : mFenceGenerator(new Hwc2TestFenceGenerator()) { }
-
-Hwc2TestBuffer::~Hwc2TestBuffer() = default;
-
-/* When the buffer changes sizes, save the new size and invalidate the current
- * buffer */
-void Hwc2TestBuffer::updateBufferArea(const Area& bufferArea)
-{
-    if (mBufferArea.width == bufferArea.width
-            && mBufferArea.height == bufferArea.height)
-        return;
-
-    mBufferArea.width = bufferArea.width;
-    mBufferArea.height = bufferArea.height;
-
-    mValidBuffer = false;
-}
-
-/* Returns a valid buffer handle and fence. The handle is filled using the CPU
- * to ensure the correct format across all devices. The fence is created using
- * egl. */
-int Hwc2TestBuffer::get(buffer_handle_t* outHandle, int32_t* outFence)
-{
-    if (mBufferArea.width == -1 || mBufferArea.height == -1)
-        return -EINVAL;
-
-    /* If the current buffer is valid, the previous buffer can be reused.
-     * Otherwise, create new buffer */
-    if (!mValidBuffer) {
-        int ret = generateBuffer();
-        if (ret)
-            return ret;
-    }
-
-    *outFence = mFenceGenerator->get();
-    *outHandle = mHandle;
-
-    mValidBuffer = true;
-
-    return 0;
-}
-
-/* CPU fills a buffer to guarantee the correct buffer format across all
- * devices */
-int Hwc2TestBuffer::generateBuffer()
-{
-    /* Create new graphic buffer with correct dimensions */
-    mGraphicBuffer = new GraphicBuffer(mBufferArea.width, mBufferArea.height,
-            mFormat, BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
-            BufferUsage::COMPOSER_OVERLAY, "hwc2_test_buffer");
-
-    int ret = mGraphicBuffer->initCheck();
-    if (ret) {
-        return ret;
-    }
-    if (!mGraphicBuffer->handle) {
-        return -EINVAL;
-    }
-
-    /* Locks the buffer for writing */
-    uint8_t* img;
-    mGraphicBuffer->lock(static_cast<uint32_t>(BufferUsage::CPU_WRITE_OFTEN),
-            (void**)(&img));
-
-    uint32_t stride = mGraphicBuffer->getStride();
-
-    /* Iterate from the top row of the buffer to the bottom row */
-    for (int32_t y = 0; y < mBufferArea.height; y++) {
-
-        /* Will be used as R, G and B values for pixel colors */
-        uint8_t max = 255;
-        uint8_t min = 0;
-
-        /* Divide the rows into 3 sections. The first section will contain
-         * the lighest colors. The last section will contain the darkest
-         * colors. */
-        if (y < mBufferArea.height * 1.0 / 3.0) {
-            min = 255 / 2;
-        } else if (y >= mBufferArea.height * 2.0 / 3.0) {
-            max = 255 / 2;
-        }
-
-        /* Divide the columns into 3 sections. The first section is red,
-         * the second is green and the third is blue */
-        int32_t x = 0;
-        for (; x < mBufferArea.width / 3; x++) {
-            setColor(x, y, mFormat, stride, img, max, min, min, 255);
-        }
-
-        for (; x < mBufferArea.width * 2 / 3; x++) {
-            setColor(x, y, mFormat, stride, img, min, max, min, 255);
-        }
-
-        for (; x < mBufferArea.width; x++) {
-            setColor(x, y, mFormat, stride, img, min, min, max, 255);
-        }
-    }
-
-    /* Unlock the buffer for reading */
-    mGraphicBuffer->unlock();
-
-    mHandle = mGraphicBuffer->handle;
-
-    return 0;
-}
-
-
-Hwc2TestClientTargetBuffer::Hwc2TestClientTargetBuffer()
-    : mFenceGenerator(new Hwc2TestFenceGenerator()) { }
-
-Hwc2TestClientTargetBuffer::~Hwc2TestClientTargetBuffer() { }
-
-/* Generates a buffer from layersToDraw.
- * Takes into account the individual layer properties such as
- * transform, blend mode, source crop, etc. */
-static void compositeBufferFromLayers(
-        const android::sp<android::GraphicBuffer>& graphicBuffer,
-        android_pixel_format_t format, const Area& bufferArea,
-        const Hwc2TestLayers* testLayers,
-        const std::set<hwc2_layer_t>* layersToDraw,
-        const std::set<hwc2_layer_t>* clearLayers)
-{
-    /* Locks the buffer for writing */
-    uint8_t* img;
-    graphicBuffer->lock(static_cast<uint32_t>(BufferUsage::CPU_WRITE_OFTEN),
-            (void**)(&img));
-
-    uint32_t stride = graphicBuffer->getStride();
-
-    float bWDiv3 = bufferArea.width / 3;
-    float bW2Div3 = bufferArea.width * 2 / 3;
-    float bHDiv3 = bufferArea.height / 3;
-    float bH2Div3 = bufferArea.height * 2 / 3;
-
-    /* Cycle through every pixel in the buffer and determine what color it
-     * should be. */
-    for (int32_t y = 0; y < bufferArea.height; y++) {
-        for (int32_t x = 0; x < bufferArea.width; x++) {
-
-            uint8_t r = 0, g = 0, b = 0;
-            float a = 0.0f;
-
-            /* Cycle through each layer from back to front and
-             * update the pixel color. */
-            for (auto layer = layersToDraw->rbegin();
-                    layer != layersToDraw->rend(); ++layer) {
-
-                const hwc_rect_t df = testLayers->getDisplayFrame(*layer);
-
-                float dfL = df.left;
-                float dfT = df.top;
-                float dfR = df.right;
-                float dfB = df.bottom;
-
-                /* If the pixel location falls outside of the layer display
-                 * frame, skip the layer. */
-                if (x < dfL || x >= dfR || y < dfT || y >= dfB)
-                    continue;
-
-                /* If the device has requested the layer be clear, clear
-                 * the pixel and continue. */
-                if (clearLayers->count(*layer) != 0) {
-                    r = 0;
-                    g = 0;
-                    b = 0;
-                    a = 0.0f;
-                    continue;
-                }
-
-                float planeAlpha = testLayers->getPlaneAlpha(*layer);
-
-                /* If the layer is a solid color, fill the color and
-                 * continue. */
-                if (testLayers->getComposition(*layer)
-                        == HWC2_COMPOSITION_SOLID_COLOR) {
-                    const auto color = testLayers->getColor(*layer);
-                    r = color.r;
-                    g = color.g;
-                    b = color.b;
-                    a = color.a * planeAlpha;
-                    continue;
-                }
-
-                float xPos = x;
-                float yPos = y;
-
-                hwc_transform_t transform = testLayers->getTransform(*layer);
-
-                float dfW = dfR - dfL;
-                float dfH = dfB - dfT;
-
-                /* If a layer has a transform, find which location on the
-                 * layer will end up in the current pixel location. We
-                 * can calculate the color of the current pixel using that
-                 * location. */
-                if (transform > 0) {
-                    /* Change origin to be the center of the layer. */
-                    xPos = xPos - dfL - dfW / 2.0;
-                    yPos = yPos - dfT - dfH / 2.0;
-
-                    /* Flip Horizontal by reflecting across the y axis. */
-                    if (transform & HWC_TRANSFORM_FLIP_H)
-                        xPos = -xPos;
-
-                    /* Flip vertical by reflecting across the x axis. */
-                    if (transform & HWC_TRANSFORM_FLIP_V)
-                        yPos = -yPos;
-
-                    /* Rotate 90 by using a basic linear algebra rotation
-                     * and scaling the result so the display frame remains
-                     * the same. For example, a buffer of size 100x50 should
-                     * rotate 90 degress but remain the same dimension
-                     * (100x50) at the end of the transformation. */
-                    if (transform & HWC_TRANSFORM_ROT_90) {
-                        float tmp = xPos;
-                        xPos = yPos * dfW / dfH;
-                        yPos = -tmp * dfH / dfW;
-                    }
-
-                    /* Change origin back to the top left corner of the
-                     * layer. */
-                    xPos = xPos + dfL + dfW / 2.0;
-                    yPos = yPos + dfT + dfH / 2.0;
-                }
-
-                hwc_frect_t sc = testLayers->getSourceCrop(*layer);
-                float scL = sc.left, scT = sc.top;
-
-                float dfWDivScW = dfW / (sc.right - scL);
-                float dfHDivScH = dfH / (sc.bottom - scT);
-
-                float max = 255, min = 0;
-
-                /* Choose the pixel color. Similar to generateBuffer,
-                 * each layer will be divided into 3x3 colors. Because
-                 * both the source crop and display frame must be taken into
-                 * account, the formulas are more complicated.
-                 *
-                 * If the source crop and display frame were not taken into
-                 * account, we would simply divide the buffer into three
-                 * sections by height. Each section would get one color.
-                 * For example the formula for the first section would be:
-                 *
-                 * if (yPos < bufferArea.height / 3)
-                 *        //Select first section color
-                 *
-                 * However the pixel color is chosen based on the source
-                 * crop and displayed based on the display frame.
-                 *
-                 * If the display frame top was 0 and the source crop height
-                 * and display frame height were the same. The only factor
-                 * would be the source crop top. To calculate the new
-                 * section boundary, the section boundary would be moved up
-                 * by the height of the source crop top. The formula would
-                 * be:
-                 * if (yPos < (bufferArea.height / 3 - sourceCrop.top)
-                 *        //Select first section color
-                 *
-                 * If the display frame top could also vary but source crop
-                 * and display frame heights were the same, the formula
-                 * would be:
-                 * if (yPos < (bufferArea.height / 3 - sourceCrop.top
-                 *              + displayFrameTop)
-                 *        //Select first section color
-                 *
-                 * If the heights were not the same, the conversion between
-                 * the source crop and display frame dimensions must be
-                 * taken into account. The formula would be:
-                 * if (yPos < ((bufferArea.height / 3) - sourceCrop.top)
-                 *              * displayFrameHeight / sourceCropHeight
-                 *              + displayFrameTop)
-                 *        //Select first section color
-                 */
-                if (yPos < ((bHDiv3) - scT) * dfHDivScH + dfT) {
-                    min = 255 / 2;
-                } else if (yPos >= ((bH2Div3) - scT) * dfHDivScH + dfT) {
-                    max = 255 / 2;
-                }
-
-                uint8_t rCur = min, gCur = min, bCur = min;
-                float aCur = 1.0f;
-
-                /* This further divides the color sections from 3 to 3x3.
-                 * The math behind it follows the same logic as the previous
-                 * comment */
-                if (xPos < ((bWDiv3) - scL) * (dfWDivScW) + dfL) {
-                    rCur = max;
-                } else if (xPos < ((bW2Div3) - scL) * (dfWDivScW) + dfL) {
-                    gCur = max;
-                } else {
-                    bCur = max;
-                }
-
-
-                /* Blend the pixel color with the previous layers' pixel
-                 * colors using the plane alpha and blend mode. The final
-                 * pixel color is chosen using the plane alpha and blend
-                 * mode formulas found in hwcomposer2.h */
-                hwc2_blend_mode_t blendMode = testLayers->getBlendMode(*layer);
-
-                if (blendMode == HWC2_BLEND_MODE_PREMULTIPLIED) {
-                    rCur *= planeAlpha;
-                    gCur *= planeAlpha;
-                    bCur *= planeAlpha;
-                }
-
-                aCur *= planeAlpha;
-
-                if (blendMode == HWC2_BLEND_MODE_PREMULTIPLIED) {
-                    r = rCur + r * (1.0 - aCur);
-                    g = gCur + g * (1.0 - aCur);
-                    b = bCur + b * (1.0 - aCur);
-                    a = aCur + a * (1.0 - aCur);
-                } else if (blendMode == HWC2_BLEND_MODE_COVERAGE) {
-                    r = rCur * aCur + r * (1.0 - aCur);
-                    g = gCur * aCur + g * (1.0 - aCur);
-                    b = bCur * aCur + b * (1.0 - aCur);
-                    a = aCur * aCur + a * (1.0 - aCur);
-                } else {
-                    r = rCur;
-                    g = gCur;
-                    b = bCur;
-                    a = aCur;
-                }
-            }
-
-            /* Set the pixel color */
-            setColor(x, y, format, stride, img, r, g, b, a * 255);
-        }
-    }
-
-    graphicBuffer->unlock();
-}
-
-/* Generates a client target buffer using the layers assigned for client
- * composition. Takes into account the individual layer properties such as
- * transform, blend mode, source crop, etc. */
-int Hwc2TestClientTargetBuffer::get(buffer_handle_t* outHandle,
-        int32_t* outFence, const Area& bufferArea,
-        const Hwc2TestLayers* testLayers,
-        const std::set<hwc2_layer_t>* clientLayers,
-        const std::set<hwc2_layer_t>* clearLayers)
-{
-    /* Create new graphic buffer with correct dimensions */
-    mGraphicBuffer = new GraphicBuffer(bufferArea.width, bufferArea.height,
-            mFormat, BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
-            BufferUsage::COMPOSER_OVERLAY, "hwc2_test_buffer");
-
-    int ret = mGraphicBuffer->initCheck();
-    if (ret)
-        return ret;
-
-    if (!mGraphicBuffer->handle)
-        return -EINVAL;
-
-    compositeBufferFromLayers(mGraphicBuffer, mFormat, bufferArea, testLayers,
-            clientLayers, clearLayers);
-
-    *outFence = mFenceGenerator->get();
-    *outHandle = mGraphicBuffer->handle;
-
-    return 0;
-}
-
-void Hwc2TestVirtualBuffer::updateBufferArea(const Area& bufferArea)
-{
-    mBufferArea.width = bufferArea.width;
-    mBufferArea.height = bufferArea.height;
-}
-
-bool Hwc2TestVirtualBuffer::writeBufferToFile(std::string path)
-{
-    SkFILEWStream file(path.c_str());
-    const SkImageInfo info = SkImageInfo::Make(mBufferArea.width,
-            mBufferArea.height, SkColorType::kRGBA_8888_SkColorType,
-            SkAlphaType::kPremul_SkAlphaType);
-
-    uint8_t* img;
-    mGraphicBuffer->lock(static_cast<uint32_t>(BufferUsage::CPU_WRITE_OFTEN),
-            (void**)(&img));
-
-    SkPixmap pixmap(info, img, mGraphicBuffer->getStride());
-    bool result = file.isValid() && SkEncodeImage(&file, pixmap,
-            SkEncodedImageFormat::kPNG, 100);
-
-    mGraphicBuffer->unlock();
-    return result;
-}
-
-/* Generates a buffer that holds the expected result of compositing all of our
- * layers */
-int Hwc2TestExpectedBuffer::generateExpectedBuffer(
-        const Hwc2TestLayers* testLayers,
-        const std::vector<hwc2_layer_t>* allLayers,
-        const std::set<hwc2_layer_t>* clearLayers)
-{
-    mGraphicBuffer = new GraphicBuffer(mBufferArea.width, mBufferArea.height,
-            mFormat, BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN,
-            "hwc2_test_buffer");
-
-    int ret = mGraphicBuffer->initCheck();
-    if (ret)
-        return ret;
-
-    if (!mGraphicBuffer->handle)
-        return -EINVAL;
-
-    const std::set<hwc2_layer_t> allLayerSet(allLayers->begin(),
-            allLayers->end());
-
-    compositeBufferFromLayers(mGraphicBuffer, mFormat, mBufferArea, testLayers,
-            &allLayerSet, clearLayers);
-
-    return 0;
-}
-
-int Hwc2TestOutputBuffer::getOutputBuffer(buffer_handle_t* outHandle,
-        int32_t* outFence)
-{
-    if (mBufferArea.width == -1 || mBufferArea.height == -1)
-        return -EINVAL;
-
-    mGraphicBuffer = new GraphicBuffer(mBufferArea.width, mBufferArea.height,
-            mFormat, BufferUsage::CPU_READ_OFTEN |
-            BufferUsage::GPU_RENDER_TARGET, "hwc2_test_buffer");
-
-    int ret = mGraphicBuffer->initCheck();
-    if (ret)
-        return ret;
-
-    if (!mGraphicBuffer->handle)
-        return -EINVAL;
-
-    *outFence = -1;
-    *outHandle = mGraphicBuffer->handle;
-
-    return 0;
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestBuffer.h b/services/surfaceflinger/tests/hwc2/Hwc2TestBuffer.h
deleted file mode 100644
index fd54fef..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestBuffer.h
+++ /dev/null
@@ -1,108 +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.
- */
-
-#ifndef _HWC2_TEST_BUFFER_H
-#define _HWC2_TEST_BUFFER_H
-
-#include <android-base/unique_fd.h>
-#include <set>
-
-#include <hardware/hwcomposer2.h>
-
-#include <ui/GraphicBuffer.h>
-
-#include "Hwc2TestProperties.h"
-
-class Hwc2TestFenceGenerator;
-class Hwc2TestLayers;
-
-class Hwc2TestBuffer {
-public:
-    Hwc2TestBuffer();
-    ~Hwc2TestBuffer();
-
-    void updateBufferArea(const Area& bufferArea);
-
-    int  get(buffer_handle_t* outHandle, int32_t* outFence);
-
-protected:
-    int generateBuffer();
-
-    android::sp<android::GraphicBuffer> mGraphicBuffer;
-
-    std::unique_ptr<Hwc2TestFenceGenerator> mFenceGenerator;
-
-    Area mBufferArea = {-1, -1};
-    const android_pixel_format_t mFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-
-    bool mValidBuffer = false;
-    buffer_handle_t mHandle = nullptr;
-};
-
-
-class Hwc2TestClientTargetBuffer {
-public:
-    Hwc2TestClientTargetBuffer();
-    ~Hwc2TestClientTargetBuffer();
-
-    int  get(buffer_handle_t* outHandle, int32_t* outFence,
-            const Area& bufferArea, const Hwc2TestLayers* testLayers,
-            const std::set<hwc2_layer_t>* clientLayers,
-            const std::set<hwc2_layer_t>* clearLayers);
-
-protected:
-    android::sp<android::GraphicBuffer> mGraphicBuffer;
-
-    std::unique_ptr<Hwc2TestFenceGenerator> mFenceGenerator;
-
-    const android_pixel_format_t mFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-};
-
-
-class Hwc2TestVirtualBuffer {
-public:
-    void updateBufferArea(const Area& bufferArea);
-
-    bool writeBufferToFile(std::string path);
-
-    android::sp<android::GraphicBuffer>& graphicBuffer()
-    {
-        return mGraphicBuffer;
-    }
-
-protected:
-    android::sp<android::GraphicBuffer> mGraphicBuffer;
-
-    Area mBufferArea = {-1, -1};
-
-    const android_pixel_format_t mFormat = HAL_PIXEL_FORMAT_RGBA_8888;
-};
-
-
-class Hwc2TestExpectedBuffer : public Hwc2TestVirtualBuffer {
-public:
-    int generateExpectedBuffer(const Hwc2TestLayers* testLayers,
-            const std::vector<hwc2_layer_t>* allLayers,
-            const std::set<hwc2_layer_t>* clearLayers);
-};
-
-
-class Hwc2TestOutputBuffer : public Hwc2TestVirtualBuffer {
-public:
-    int getOutputBuffer(buffer_handle_t* outHandle, int32_t* outFence);
-};
-
-#endif /* ifndef _HWC2_TEST_BUFFER_H */
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.cpp
deleted file mode 100644
index 14c60a7..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.cpp
+++ /dev/null
@@ -1,102 +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.
- */
-
-#include <sstream>
-
-#include <ui/Rect.h>
-
-#include "Hwc2TestClientTarget.h"
-
-int Hwc2TestClientTarget::getBuffer(const Hwc2TestLayers& testLayers,
-        const std::set<hwc2_layer_t>& clientLayers,
-        const std::set<hwc2_layer_t>& clearLayers, bool flipClientTarget,
-        const Area& displayArea, buffer_handle_t* outHandle,
-        int32_t* outAcquireFence)
-{
-    if (!flipClientTarget) {
-        bool needsClientTarget = false;
-
-        for (auto clientLayer : clientLayers) {
-            if (testLayers.getVisibleRegion(clientLayer).numRects > 0) {
-                needsClientTarget = true;
-                break;
-            }
-        }
-
-        if (!needsClientTarget) {
-           *outHandle = nullptr;
-           *outAcquireFence = -1;
-           return 0;
-        }
-    }
-
-    return mBuffer.get(outHandle, outAcquireFence, displayArea,
-            &testLayers, &clientLayers, &clearLayers);
-}
-
-
-Hwc2TestClientTargetSupport::Hwc2TestClientTargetSupport(
-        Hwc2TestCoverage coverage, const Area& displayArea)
-    : mBufferArea(coverage, displayArea),
-      mDataspace(coverage),
-      mSurfaceDamage(coverage)
-{
-    mBufferArea.setDependent(&mSurfaceDamage);
-}
-
-std::string Hwc2TestClientTargetSupport::dump() const
-{
-    std::stringstream dmp;
-
-    dmp << "client target: \n";
-
-    for (auto property : properties) {
-        dmp << property->dump();
-    }
-
-    return dmp.str();
-}
-
-void Hwc2TestClientTargetSupport::reset()
-{
-    for (auto property : properties) {
-        property->reset();
-    }
-}
-
-bool Hwc2TestClientTargetSupport::advance()
-{
-    for (auto property : properties) {
-        if (property->advance())
-            return true;
-    }
-    return false;
-}
-
-Area Hwc2TestClientTargetSupport::getBufferArea() const
-{
-    return mBufferArea.get();
-}
-
-android::ui::Dataspace Hwc2TestClientTargetSupport::getDataspace() const
-{
-    return mDataspace.get();
-}
-
-const hwc_region_t Hwc2TestClientTargetSupport::getSurfaceDamage() const
-{
-    return mSurfaceDamage.get();
-}
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.h b/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.h
deleted file mode 100644
index 6f4090f..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestClientTarget.h
+++ /dev/null
@@ -1,69 +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.
- */
-
-#ifndef _HWC2_TEST_CLIENT_TARGET_H
-#define _HWC2_TEST_CLIENT_TARGET_H
-
-#include <set>
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-#include "Hwc2TestProperties.h"
-#include "Hwc2TestLayers.h"
-
-/* Generates client target buffers from client composition layers */
-class Hwc2TestClientTarget {
-public:
-    int getBuffer(const Hwc2TestLayers& layers,
-            const std::set<hwc2_layer_t>& clientLayers,
-            const std::set<hwc2_layer_t>& clearLayers,
-            bool clearClientTarget, const Area& displayArea,
-            buffer_handle_t* outHandle, int32_t* outAcquireFence);
-
-private:
-    Hwc2TestClientTargetBuffer mBuffer;
-};
-
-/* Generates valid client targets to test which ones the device will support */
-class Hwc2TestClientTargetSupport {
-public:
-    Hwc2TestClientTargetSupport(Hwc2TestCoverage coverage,
-            const Area& displayArea);
-
-    std::string dump() const;
-
-    void reset();
-    bool advance();
-
-    Area getBufferArea() const;
-    android::ui::Dataspace getDataspace() const;
-    const hwc_region_t getSurfaceDamage() const;
-
-private:
-    std::array<Hwc2TestContainer*, 3> properties = {{
-        &mDataspace, &mSurfaceDamage, &mBufferArea
-    }};
-
-    Hwc2TestBufferArea mBufferArea;
-    Hwc2TestDataspace mDataspace;
-    Hwc2TestSurfaceDamage mSurfaceDamage;
-};
-
-#endif /* ifndef _HWC2_TEST_CLIENT_TARGET_H */
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
deleted file mode 100644
index c1c9cc8..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.cpp
+++ /dev/null
@@ -1,249 +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.
- */
-
-#include <sstream>
-
-#include "Hwc2TestLayer.h"
-
-Hwc2TestCoverage getCoverage(Hwc2TestPropertyName property,
-        Hwc2TestCoverage coverage, const std::unordered_map<Hwc2TestPropertyName,
-        Hwc2TestCoverage>& coverageExceptions) {
-    auto exception = coverageExceptions.find(property);
-    return (exception != coverageExceptions.end())? exception->second : coverage;
-}
-
-Hwc2TestLayer::Hwc2TestLayer(Hwc2TestCoverage coverage,
-        const Area& displayArea)
-    : Hwc2TestLayer(coverage, displayArea,
-            std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage>()) { }
-
-Hwc2TestLayer::Hwc2TestLayer(Hwc2TestCoverage coverage,
-        const Area& displayArea, const std::unordered_map<Hwc2TestPropertyName,
-        Hwc2TestCoverage>& coverageExceptions)
-    : mBlendMode(getCoverage(Hwc2TestPropertyName::BlendMode, coverage,
-           coverageExceptions)),
-      mBufferArea(getCoverage(Hwc2TestPropertyName::BufferArea, coverage,
-           coverageExceptions), displayArea),
-      mColor(getCoverage(Hwc2TestPropertyName::Color, coverage,
-           coverageExceptions)),
-      mComposition(getCoverage(Hwc2TestPropertyName::Composition, coverage,
-           coverageExceptions)),
-      mDataspace(getCoverage(Hwc2TestPropertyName::Dataspace, coverage,
-           coverageExceptions)),
-      mDisplayFrame(getCoverage(Hwc2TestPropertyName::DisplayFrame, coverage,
-           coverageExceptions), displayArea),
-      mPlaneAlpha(getCoverage(Hwc2TestPropertyName::PlaneAlpha, coverage,
-           coverageExceptions)),
-      mSourceCrop(getCoverage(Hwc2TestPropertyName::SourceCrop, coverage,
-           coverageExceptions)),
-      mSurfaceDamage(getCoverage(Hwc2TestPropertyName::SurfaceDamage, coverage,
-           coverageExceptions)),
-      mTransform(getCoverage(Hwc2TestPropertyName::Transform, coverage,
-           coverageExceptions))
-{
-    mBufferArea.setDependent(&mBuffer);
-    mBufferArea.setDependent(&mSourceCrop);
-    mBufferArea.setDependent(&mSurfaceDamage);
-    mBlendMode.setDependent(&mColor);
-}
-
-std::string Hwc2TestLayer::dump() const
-{
-    std::stringstream dmp;
-
-    dmp << "layer: \n";
-
-    for (auto property : mProperties) {
-        dmp << property->dump();
-    }
-
-    dmp << mVisibleRegion.dump();
-    dmp << "\tz order: " << mZOrder << "\n";
-
-    return dmp.str();
-}
-
-int Hwc2TestLayer::getBuffer(buffer_handle_t* outHandle,
-        android::base::unique_fd* outAcquireFence)
-{
-    int32_t acquireFence;
-    int ret = mBuffer.get(outHandle, &acquireFence);
-    outAcquireFence->reset(acquireFence);
-    return ret;
-}
-
-int Hwc2TestLayer::getBuffer(buffer_handle_t* outHandle,
-        int32_t* outAcquireFence)
-{
-    return mBuffer.get(outHandle, outAcquireFence);
-}
-
-void Hwc2TestLayer::setZOrder(uint32_t zOrder)
-{
-    mZOrder = zOrder;
-}
-
-void Hwc2TestLayer::setVisibleRegion(const android::Region& region)
-{
-    return mVisibleRegion.set(region);
-}
-
-void Hwc2TestLayer::reset()
-{
-    mVisibleRegion.release();
-
-    for (auto property : mProperties) {
-        property->reset();
-    }
-}
-
-bool Hwc2TestLayer::advance()
-{
-    for (auto property : mProperties) {
-        if (property->isSupported(mComposition.get()))
-            if (property->advance())
-                return true;
-    }
-    return false;
-}
-
-hwc2_blend_mode_t Hwc2TestLayer::getBlendMode() const
-{
-    return mBlendMode.get();
-}
-
-Area Hwc2TestLayer::getBufferArea() const
-{
-    return mBufferArea.get();
-}
-
-hwc_color_t Hwc2TestLayer::getColor() const
-{
-    return mColor.get();
-}
-
-hwc2_composition_t Hwc2TestLayer::getComposition() const
-{
-    return mComposition.get();
-}
-
-/* The cursor position corresponds to {displayFrame.left, displayFrame.top} */
-hwc_rect_t Hwc2TestLayer::getCursorPosition() const
-{
-    return mDisplayFrame.get();
-}
-
-android::ui::Dataspace Hwc2TestLayer::getDataspace() const
-{
-    return mDataspace.get();
-}
-
-hwc_rect_t Hwc2TestLayer::getDisplayFrame() const
-{
-    return mDisplayFrame.get();
-}
-
-float Hwc2TestLayer::getPlaneAlpha() const
-{
-    return mPlaneAlpha.get();
-}
-
-hwc_frect_t Hwc2TestLayer::getSourceCrop() const
-{
-    return mSourceCrop.get();
-}
-
-hwc_region_t Hwc2TestLayer::getSurfaceDamage() const
-{
-    return mSurfaceDamage.get();
-}
-
-hwc_transform_t Hwc2TestLayer::getTransform() const
-{
-    return mTransform.get();
-}
-
-hwc_region_t Hwc2TestLayer::getVisibleRegion() const
-{
-    return mVisibleRegion.get();
-}
-
-uint32_t Hwc2TestLayer::getZOrder() const
-{
-    return mZOrder;
-}
-
-bool Hwc2TestLayer::advanceBlendMode()
-{
-    return mBlendMode.advance();
-}
-
-bool Hwc2TestLayer::advanceBufferArea()
-{
-    return mBufferArea.advance();
-}
-
-bool Hwc2TestLayer::advanceColor()
-{
-    return mColor.advance();
-}
-
-bool Hwc2TestLayer::advanceComposition()
-{
-    return mComposition.advance();
-}
-
-bool Hwc2TestLayer::advanceCursorPosition()
-{
-    return mDisplayFrame.advance();
-}
-
-bool Hwc2TestLayer::advanceDataspace()
-{
-    return mDataspace.advance();
-}
-
-bool Hwc2TestLayer::advanceDisplayFrame()
-{
-    return mDisplayFrame.advance();
-}
-
-bool Hwc2TestLayer::advancePlaneAlpha()
-{
-    return mPlaneAlpha.advance();
-}
-
-bool Hwc2TestLayer::advanceSourceCrop()
-{
-    return mSourceCrop.advance();
-}
-
-bool Hwc2TestLayer::advanceSurfaceDamage()
-{
-    return mSurfaceDamage.advance();
-}
-
-bool Hwc2TestLayer::advanceTransform()
-{
-    return mTransform.advance();
-}
-
-bool Hwc2TestLayer::advanceVisibleRegion()
-{
-    if (mPlaneAlpha.advance())
-        return true;
-    return mDisplayFrame.advance();
-}
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.h b/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.h
deleted file mode 100644
index 29ae521..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestLayer.h
+++ /dev/null
@@ -1,103 +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.
- */
-
-#ifndef _HWC2_TEST_LAYER_H
-#define _HWC2_TEST_LAYER_H
-
-#include <android-base/unique_fd.h>
-#include <unordered_map>
-
-#include "Hwc2TestBuffer.h"
-#include "Hwc2TestProperties.h"
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-class Hwc2TestLayer {
-public:
-    Hwc2TestLayer(Hwc2TestCoverage coverage, const Area& displayArea);
-
-    Hwc2TestLayer(Hwc2TestCoverage coverage, const Area& displayArea,
-            const std::unordered_map<Hwc2TestPropertyName,
-            Hwc2TestCoverage>& coverage_exceptions);
-
-    std::string dump() const;
-
-    int getBuffer(buffer_handle_t* outHandle,
-            android::base::unique_fd* outAcquireFence);
-    int getBuffer(buffer_handle_t* outHandle, int32_t* outAcquireFence);
-
-    void setZOrder(uint32_t zOrder);
-    void setVisibleRegion(const android::Region& region);
-
-    void reset();
-    bool advance();
-
-    hwc2_blend_mode_t      getBlendMode() const;
-    Area                   getBufferArea() const;
-    hwc_color_t            getColor() const;
-    hwc2_composition_t     getComposition() const;
-    hwc_rect_t             getCursorPosition() const;
-    android::ui::Dataspace     getDataspace() const;
-    hwc_rect_t             getDisplayFrame() const;
-    float                  getPlaneAlpha() const;
-    hwc_frect_t            getSourceCrop() const;
-    hwc_region_t           getSurfaceDamage() const;
-    hwc_transform_t        getTransform() const;
-    hwc_region_t           getVisibleRegion() const;
-    uint32_t               getZOrder() const;
-
-    bool advanceBlendMode();
-    bool advanceBufferArea();
-    bool advanceColor();
-    bool advanceComposition();
-    bool advanceCursorPosition();
-    bool advanceDataspace();
-    bool advanceDisplayFrame();
-    bool advancePlaneAlpha();
-    bool advanceSourceCrop();
-    bool advanceSurfaceDamage();
-    bool advanceTransform();
-    bool advanceVisibleRegion();
-
-private:
-    std::array<Hwc2TestContainer*, 10> mProperties = {{
-        &mTransform, &mColor, &mDataspace, &mPlaneAlpha, &mSourceCrop,
-        &mSurfaceDamage, &mBlendMode, &mBufferArea, &mDisplayFrame,
-        &mComposition
-    }};
-
-    Hwc2TestBuffer mBuffer;
-
-    Hwc2TestBlendMode mBlendMode;
-    Hwc2TestBufferArea mBufferArea;
-    Hwc2TestColor mColor;
-    Hwc2TestComposition mComposition;
-    Hwc2TestDataspace mDataspace;
-    Hwc2TestDisplayFrame mDisplayFrame;
-    Hwc2TestPlaneAlpha mPlaneAlpha;
-    Hwc2TestSourceCrop mSourceCrop;
-    Hwc2TestSurfaceDamage mSurfaceDamage;
-    Hwc2TestTransform mTransform;
-    Hwc2TestVisibleRegion mVisibleRegion;
-
-    uint32_t mZOrder = UINT32_MAX;
-};
-
-#endif /* ifndef _HWC2_TEST_LAYER_H */
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestLayers.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestLayers.cpp
deleted file mode 100644
index b76ace8..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestLayers.cpp
+++ /dev/null
@@ -1,288 +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"
-
-#include <sstream>
-#include <gtest/gtest.h>
-
-#include "Hwc2TestLayers.h"
-
-Hwc2TestLayers::Hwc2TestLayers(const std::vector<hwc2_layer_t>& layers,
-        Hwc2TestCoverage coverage, const Area& displayArea)
-    : Hwc2TestLayers(layers, coverage, displayArea,
-            std::unordered_map<Hwc2TestPropertyName, Hwc2TestCoverage>()) { }
-
-Hwc2TestLayers::Hwc2TestLayers(const std::vector<hwc2_layer_t>& layers,
-        Hwc2TestCoverage coverage, const Area& displayArea,
-        const std::unordered_map<Hwc2TestPropertyName,
-        Hwc2TestCoverage>& coverageExceptions)
-    : mDisplayArea(displayArea)
-{
-    for (auto layer : layers) {
-        mTestLayers.emplace(std::piecewise_construct,
-                std::forward_as_tuple(layer),
-                std::forward_as_tuple(coverage, displayArea, coverageExceptions));
-    }
-
-    /* Iterate over the layers in order and assign z orders in the same order.
-     * This allows us to iterate over z orders in the same way when computing
-     * visible regions */
-    uint32_t nextZOrder = layers.size();
-
-    for (auto& testLayer : mTestLayers) {
-        testLayer.second.setZOrder(nextZOrder--);
-    }
-
-    setVisibleRegions();
-}
-
-std::string Hwc2TestLayers::dump() const
-{
-    std::stringstream dmp;
-    for (auto& testLayer : mTestLayers) {
-        dmp << testLayer.second.dump();
-    }
-    return dmp.str();
-}
-
-void Hwc2TestLayers::reset()
-{
-    for (auto& testLayer : mTestLayers) {
-        testLayer.second.reset();
-    }
-
-    setVisibleRegions();
-}
-
-bool Hwc2TestLayers::advance()
-{
-    auto itr = mTestLayers.begin();
-    bool optimized;
-
-    while (itr != mTestLayers.end()) {
-        if (itr->second.advance()) {
-            optimized = setVisibleRegions();
-            if (!mOptimize || optimized)
-                return true;
-            itr = mTestLayers.begin();
-        } else {
-            itr->second.reset();
-            ++itr;
-        }
-    }
-    return false;
-}
-
-bool Hwc2TestLayers::advanceVisibleRegions()
-{
-    auto itr = mTestLayers.begin();
-    bool optimized;
-
-    while (itr != mTestLayers.end()) {
-        if (itr->second.advanceVisibleRegion()) {
-            optimized = setVisibleRegions();
-            if (!mOptimize || optimized)
-                return true;
-            itr = mTestLayers.begin();
-        } else {
-            itr->second.reset();
-            ++itr;
-        }
-    }
-    return false;
-}
-
-/* Removes layouts that do not cover the entire display.
- * Also removes layouts where a layer is completely blocked from view.
- */
-bool Hwc2TestLayers::optimizeLayouts()
-{
-    mOptimize = true;
-
-    if (setVisibleRegions())
-        return true;
-    return advance();
-}
-
-bool Hwc2TestLayers::contains(hwc2_layer_t layer) const
-{
-    return mTestLayers.count(layer) != 0;
-}
-
-int Hwc2TestLayers::getBuffer(hwc2_layer_t layer, buffer_handle_t* outHandle,
-        int32_t* outAcquireFence)
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getBuffer(outHandle, outAcquireFence);
-}
-
-hwc2_blend_mode_t Hwc2TestLayers::getBlendMode(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getBlendMode();
-}
-
-Area Hwc2TestLayers::getBufferArea(hwc2_layer_t layer) const
-{
-    auto testLayer = mTestLayers.find(layer);
-    if (testLayer == mTestLayers.end())
-        [] () { GTEST_FAIL(); }();
-    return testLayer->second.getBufferArea();
-}
-
-hwc_color_t Hwc2TestLayers::getColor(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getColor();
-}
-
-hwc2_composition_t Hwc2TestLayers::getComposition(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getComposition();
-}
-
-hwc_rect_t Hwc2TestLayers::getCursorPosition(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getCursorPosition();
-}
-
-android::ui::Dataspace Hwc2TestLayers::getDataspace(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getDataspace();
-}
-
-hwc_rect_t Hwc2TestLayers::getDisplayFrame(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getDisplayFrame();
-}
-
-float Hwc2TestLayers::getPlaneAlpha(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getPlaneAlpha();
-}
-
-hwc_frect_t Hwc2TestLayers::getSourceCrop(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getSourceCrop();
-}
-
-hwc_region_t Hwc2TestLayers::getSurfaceDamage(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getSurfaceDamage();
-}
-
-hwc_transform_t Hwc2TestLayers::getTransform(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getTransform();
-}
-
-hwc_region_t Hwc2TestLayers::getVisibleRegion(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getVisibleRegion();
-}
-
-uint32_t Hwc2TestLayers::getZOrder(hwc2_layer_t layer) const
-{
-    if (mTestLayers.count(layer) == 0) {
-        []() { GTEST_FAIL(); }();
-    }
-    return mTestLayers.at(layer).getZOrder();
-}
-
-/* Sets the visible regions for a display. Returns false if the layers do not
- * cover the entire display or if a layer is not visible */
-bool Hwc2TestLayers::setVisibleRegions()
-{
-    /* The region of the display that is covered by layers above the current
-     * layer */
-    android::Region aboveOpaqueLayers;
-
-    bool optimized = true;
-
-    /* Iterate over test layers from max z order to min z order. */
-    for (auto& testLayer : mTestLayers) {
-        android::Region visibleRegion;
-
-        /* Set the visible region of this layer */
-        const hwc_rect_t displayFrame = testLayer.second.getDisplayFrame();
-
-        visibleRegion.set(android::Rect(displayFrame.left, displayFrame.top,
-                displayFrame.right, displayFrame.bottom));
-
-        /* Remove the area covered by opaque layers above this layer
-         * from this layer's visible region */
-        visibleRegion.subtractSelf(aboveOpaqueLayers);
-
-        testLayer.second.setVisibleRegion(visibleRegion);
-
-        /* If a layer is not visible, return false */
-        if (visibleRegion.isEmpty())
-            optimized = false;
-
-        /* If this layer is opaque, store the region it covers */
-        if (testLayer.second.getPlaneAlpha() == 1.0f)
-            aboveOpaqueLayers.orSelf(visibleRegion);
-    }
-
-    /* If the opaque region does not cover the entire display return false */
-    if (!aboveOpaqueLayers.isRect())
-        return false;
-
-    const auto rect = aboveOpaqueLayers.begin();
-    if (rect->left != 0 || rect->top != 0 || rect->right != mDisplayArea.width
-            || rect->bottom != mDisplayArea.height)
-        return false;
-
-    return optimized;
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestLayers.h b/services/surfaceflinger/tests/hwc2/Hwc2TestLayers.h
deleted file mode 100644
index 909dd48..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestLayers.h
+++ /dev/null
@@ -1,86 +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.
- */
-
-#ifndef _HWC2_TEST_LAYERS_H
-#define _HWC2_TEST_LAYERS_H
-
-#include <map>
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-#include "Hwc2TestProperties.h"
-#include "Hwc2TestLayer.h"
-
-class Hwc2TestLayers {
-public:
-    Hwc2TestLayers(const std::vector<hwc2_layer_t>& layers,
-            Hwc2TestCoverage coverage, const Area& displayArea);
-
-    Hwc2TestLayers(const std::vector<hwc2_layer_t>& layers,
-            Hwc2TestCoverage coverage, const Area& displayArea,
-            const std::unordered_map<Hwc2TestPropertyName,
-            Hwc2TestCoverage>& coverageExceptions);
-
-    std::string dump() const;
-
-    void reset();
-
-    bool advance();
-    bool advanceVisibleRegions();
-
-    /* Test cases with multiple layers and property values can take quite some
-     * time to run. A significant amount of time can be spent on test cases
-     * where one layer is changing property values but is not visible. To
-     * decrease runtime, this function can be called. Removes layouts where a
-     * layer is completely blocked from view. It also removes layouts that do
-     * not cover the entire display.*/
-    bool optimizeLayouts();
-
-    bool contains(hwc2_layer_t layer) const;
-
-    int  getBuffer(hwc2_layer_t layer, buffer_handle_t* outHandle,
-            int32_t* outAcquireFence);
-
-    hwc2_blend_mode_t      getBlendMode(hwc2_layer_t layer) const;
-    Area                   getBufferArea(hwc2_layer_t layer) const;
-    hwc_color_t            getColor(hwc2_layer_t layer) const;
-    hwc2_composition_t     getComposition(hwc2_layer_t layer) const;
-    hwc_rect_t             getCursorPosition(hwc2_layer_t layer) const;
-    android::ui::Dataspace     getDataspace(hwc2_layer_t layer) const;
-    hwc_rect_t             getDisplayFrame(hwc2_layer_t layer) const;
-    android_pixel_format_t getFormat(hwc2_layer_t layer) const;
-    float                  getPlaneAlpha(hwc2_layer_t layer) const;
-    hwc_frect_t            getSourceCrop(hwc2_layer_t layer) const;
-    hwc_region_t           getSurfaceDamage(hwc2_layer_t layer) const;
-    hwc_transform_t        getTransform(hwc2_layer_t layer) const;
-    hwc_region_t           getVisibleRegion(hwc2_layer_t layer) const;
-    uint32_t               getZOrder(hwc2_layer_t layer) const;
-
-private:
-    bool setVisibleRegions();
-
-    std::map<hwc2_layer_t, Hwc2TestLayer> mTestLayers;
-
-    Area mDisplayArea;
-
-    bool mOptimize = false;
-};
-
-#endif /* ifndef _HWC2_TEST_LAYERS_H */
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestPixelComparator.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestPixelComparator.cpp
deleted file mode 100644
index 8ca8815..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestPixelComparator.cpp
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wconversion"
-
-#include <sstream>
-#include <android/hardware/graphics/common/1.0/types.h>
-
-#include "Hwc2TestPixelComparator.h"
-
-using android::hardware::graphics::common::V1_0::BufferUsage;
-
-uint32_t ComparatorResult::getPixel(int32_t x, int32_t y, uint32_t stride,
-        uint8_t* img) const
-{
-    uint32_t r = img[(y * stride + x) * 4 + 0];
-    uint32_t g = img[(y * stride + x) * 4 + 1];
-    uint32_t b = img[(y * stride + x) * 4 + 2];
-    uint32_t a = img[(y * stride + x) * 4 + 3];
-
-    uint32_t pixel = 0;
-    pixel |= r;
-    pixel |= g << 8;
-    pixel |= b << 16;
-    pixel |= a << 24;
-    return pixel;
-}
-
-void ComparatorResult::CompareBuffers(
-        android::sp<android::GraphicBuffer>& resultBuffer,
-        android::sp<android::GraphicBuffer>& expectedBuffer)
-{
-    uint8_t* resultBufferImg;
-    uint8_t* expectedBufferImg;
-    resultBuffer->lock(static_cast<uint32_t>(BufferUsage::CPU_READ_OFTEN),
-            (void**)(&resultBufferImg));
-
-    expectedBuffer->lock(static_cast<uint32_t>(BufferUsage::CPU_READ_OFTEN),
-            (void**)(&expectedBufferImg));
-    mComparisons.clear();
-    int32_t mDifferentPixelCount = 0;
-    int32_t mBlankPixelCount = 0;
-
-    for (uint32_t y = 0; y < resultBuffer->getHeight(); y++) {
-        for (uint32_t x = 0; x < resultBuffer->getWidth(); x++) {
-            uint32_t result = getPixel(x, y, resultBuffer->getStride(),
-                    resultBufferImg);
-            uint32_t expected = getPixel(x, y, expectedBuffer->getStride(),
-                    expectedBufferImg);
-
-            if (result == 0)
-                mBlankPixelCount++;
-
-            if (result != expected)
-                mDifferentPixelCount++;
-
-            mComparisons.emplace_back(std::make_tuple(x, y, result, expected));
-        }
-    }
-    resultBuffer->unlock();
-    expectedBuffer->unlock();
-}
-
-std::string ComparatorResult::pixelDiff(uint32_t x, uint32_t y,
-        uint32_t resultPixel, uint32_t expectedPixel) const
-{
-    uint32_t resultAlpha = (resultPixel >> 24) & 0xFF;
-    uint32_t resultBlue = (resultPixel >> 16) & 0xFF;
-    uint32_t resultGreen = (resultPixel >> 8) & 0xFF;
-    uint32_t resultRed = resultPixel & 0xFF;
-
-    uint32_t expectedAlpha = (expectedPixel >> 24) & 0xFF;
-    uint32_t expectedBlue = (expectedPixel >> 16) & 0xFF;
-    uint32_t expectedGreen = (expectedPixel >> 8) & 0xFF;
-    uint32_t expectedRed = expectedPixel & 0xFF;
-
-    std::ostringstream stream;
-
-    stream << "x: " << x << " y: " << y << std::endl;
-    stream << std::hex;
-    stream << "Result pixel:   " << resultRed << "|" << resultGreen << "|"
-           << resultBlue << "|" << resultAlpha << std::endl;
-
-    stream << "Expected pixel: " << expectedRed << "|" << expectedGreen << "|"
-           << expectedBlue << "|" << expectedAlpha << std::endl;
-
-    return stream.str();
-}
-
-std::string ComparatorResult::dumpComparison() const
-{
-    std::ostringstream stream;
-    stream << "Number of different pixels: " << mDifferentPixelCount;
-
-    for (const auto& comparison : mComparisons) {
-        if (std::get<2>(comparison) != std::get<3>(comparison))
-            stream << pixelDiff(std::get<0>(comparison),
-                    std::get<1>(comparison), std::get<2>(comparison),
-                    std::get<3>(comparison));
-    }
-    return stream.str();
-}
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestPixelComparator.h b/services/surfaceflinger/tests/hwc2/Hwc2TestPixelComparator.h
deleted file mode 100644
index 55fa936..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestPixelComparator.h
+++ /dev/null
@@ -1,59 +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.
- */
-#ifndef _HWC2_TEST_PIXEL_COMPARATOR_H
-#define _HWC2_TEST_PIXEL_COMPARATOR_H
-
-#include <ui/GraphicBuffer.h>
-#include <cstdint>
-#include <string>
-#include <utility>
-#include <vector>
-
-class ComparatorResult {
-public:
-    static ComparatorResult& get()
-    {
-        static ComparatorResult instance;
-        return instance;
-    }
-
-    void CompareBuffers(android::sp<android::GraphicBuffer>& resultBuffer,
-            android::sp<android::GraphicBuffer>& expectedBuffer);
-
-    std::string dumpComparison() const;
-
-    ComparatorResult(const ComparatorResult&) = delete;
-    ComparatorResult(ComparatorResult&&) = delete;
-    ComparatorResult& operator=(ComparatorResult const&) = delete;
-    ComparatorResult& operator=(ComparatorResult&&) = delete;
-
-    int32_t getDifferentPixelCount() const { return mDifferentPixelCount; }
-    int32_t getBlankPixelCount() const { return mBlankPixelCount; }
-
-private:
-    ComparatorResult() = default;
-    uint32_t getPixel(int32_t x, int32_t y, uint32_t stride, uint8_t* img) const;
-    std::string pixelDiff(uint32_t x, uint32_t y, uint32_t resultPixel,
-            uint32_t expectedPixel) const;
-
-    int32_t mDifferentPixelCount;
-    int32_t mBlankPixelCount;
-    /* std::tuple<X coordinate, Y coordinate, resultPixel, expectedPixel> */
-    std::vector<std::tuple<uint32_t, uint32_t, uint32_t, uint32_t>>
-            mComparisons;
-};
-
-#endif /* ifndef _HWC2_TEST_PIXEL_COMPARATOR_H */
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestProperties.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestProperties.cpp
deleted file mode 100644
index 1efb21e..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestProperties.cpp
+++ /dev/null
@@ -1,789 +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"
-
-#include <sstream>
-#include <cutils/log.h>
-#include <ui/Rect.h>
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-#include "Hwc2TestBuffer.h"
-#include "Hwc2TestProperties.h"
-
-Hwc2TestBufferArea::Hwc2TestBufferArea(Hwc2TestCoverage coverage,
-        const Area& displayArea)
-    : Hwc2TestProperty(mBufferAreas, mCompositionSupport),
-      mScalars((coverage == Hwc2TestCoverage::Complete)? mCompleteScalars:
-            (coverage == Hwc2TestCoverage::Basic)? mBasicScalars:
-            mDefaultScalars),
-      mDisplayArea(displayArea)
-{
-    update();
-}
-
-std::string Hwc2TestBufferArea::dump() const
-{
-    std::stringstream dmp;
-    const Area& curr = get();
-    dmp << "\tbuffer area: width " << curr.width << ", height " << curr.height
-            << "\n";
-    return dmp.str();
-}
-
-void Hwc2TestBufferArea::setDependent(Hwc2TestBuffer* buffer)
-{
-    mBuffer = buffer;
-    if (buffer) {
-        buffer->updateBufferArea(get());
-    }
-}
-
-void Hwc2TestBufferArea::setDependent(Hwc2TestSourceCrop* sourceCrop)
-{
-    mSourceCrop = sourceCrop;
-    if (mSourceCrop) {
-        mSourceCrop->updateBufferArea(get());
-    }
-}
-
-void Hwc2TestBufferArea::setDependent(Hwc2TestSurfaceDamage* surfaceDamage)
-{
-    mSurfaceDamage = surfaceDamage;
-    if (mSurfaceDamage) {
-        mSurfaceDamage->updateBufferArea(get());
-    }
-}
-
-void Hwc2TestBufferArea::update()
-{
-    mBufferAreas.clear();
-
-    if (mDisplayArea.width == 0 && mDisplayArea.height == 0) {
-        mBufferAreas.push_back({0, 0});
-        return;
-    }
-
-    for (auto scalar : mScalars) {
-        mBufferAreas.push_back({static_cast<int32_t>(scalar * mDisplayArea.width),
-                static_cast<int32_t>(scalar * mDisplayArea.height)});
-    }
-
-    updateDependents();
-}
-
-void Hwc2TestBufferArea::updateDependents()
-{
-    const Area& curr = get();
-
-    if (mBuffer)
-        mBuffer->updateBufferArea(curr);
-    if (mSourceCrop)
-        mSourceCrop->updateBufferArea(curr);
-    if (mSurfaceDamage)
-        mSurfaceDamage->updateBufferArea(curr);
-}
-
-const std::vector<float> Hwc2TestBufferArea::mDefaultScalars = {
-    1.0f,
-};
-
-const std::vector<float> Hwc2TestBufferArea::mBasicScalars = {
-    1.0f, 0.5f,
-};
-
-const std::vector<float> Hwc2TestBufferArea::mCompleteScalars = {
-    1.0f, 0.75f, 0.5f
-};
-
-
-Hwc2TestBlendMode::Hwc2TestBlendMode(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(coverage, mCompleteBlendModes, mBasicBlendModes,
-            mDefaultBlendModes, mCompositionSupport) { }
-
-std::string Hwc2TestBlendMode::dump() const
-{
-    std::stringstream dmp;
-    dmp << "\tblend mode: " << getBlendModeName(get()) << "\n";
-    return dmp.str();
-}
-
-void Hwc2TestBlendMode::setDependent(Hwc2TestColor* color)
-{
-    mColor = color;
-    updateDependents();
-}
-
-void Hwc2TestBlendMode::updateDependents()
-{
-    if (mColor)
-        mColor->updateBlendMode(get());
-}
-
-const std::vector<hwc2_blend_mode_t> Hwc2TestBlendMode::mDefaultBlendModes = {
-    HWC2_BLEND_MODE_NONE,
-};
-
-const std::vector<hwc2_blend_mode_t> Hwc2TestBlendMode::mBasicBlendModes = {
-    HWC2_BLEND_MODE_NONE,
-    HWC2_BLEND_MODE_PREMULTIPLIED,
-};
-
-const std::vector<hwc2_blend_mode_t> Hwc2TestBlendMode::mCompleteBlendModes = {
-    HWC2_BLEND_MODE_NONE,
-    HWC2_BLEND_MODE_PREMULTIPLIED,
-    HWC2_BLEND_MODE_COVERAGE,
-};
-
-
-Hwc2TestColor::Hwc2TestColor(Hwc2TestCoverage coverage,
-        hwc2_blend_mode_t blendMode)
-    : Hwc2TestProperty(mColors, mCompositionSupport),
-      mBaseColors((coverage == Hwc2TestCoverage::Complete)? mCompleteBaseColors:
-            (coverage == Hwc2TestCoverage::Basic)? mBasicBaseColors:
-            mDefaultBaseColors),
-      mBlendMode(blendMode)
-{
-    update();
-}
-
-std::string Hwc2TestColor::dump() const
-{
-    std::stringstream dmp;
-    const hwc_color_t& color = get();
-    dmp << "\tcolor: r " << std::to_string(color.r) << ", g "
-            << std::to_string(color.g) << ", b " << std::to_string(color.b)
-            << ", a " << std::to_string(color.a) << "\n";
-    return dmp.str();
-}
-
-void Hwc2TestColor::updateBlendMode(hwc2_blend_mode_t blendMode)
-{
-    mBlendMode = blendMode;
-    update();
-}
-
-void Hwc2TestColor::update()
-{
-    if (mBlendMode != HWC2_BLEND_MODE_PREMULTIPLIED) {
-        mColors = mBaseColors;
-        return;
-    }
-
-    mColors.clear();
-
-    for (const hwc_color_t& baseColor : mBaseColors) {
-        if (baseColor.a >= baseColor.r && baseColor.a >= baseColor.g
-                && baseColor.a >= baseColor.b) {
-            mColors.push_back(baseColor);
-        }
-    }
-
-}
-
-const std::vector<hwc_color_t> Hwc2TestColor::mDefaultBaseColors = {
-    {UINT8_MAX, UINT8_MAX, UINT8_MAX, UINT8_MAX},
-};
-
-const std::vector<hwc_color_t> Hwc2TestColor::mBasicBaseColors = {
-    {UINT8_MAX, UINT8_MAX, UINT8_MAX, UINT8_MAX},
-    {        0,         0,         0,         0},
-};
-
-const std::vector<hwc_color_t> Hwc2TestColor::mCompleteBaseColors = {
-    {UINT8_MAX, UINT8_MAX, UINT8_MAX, UINT8_MAX},
-    {UINT8_MAX, UINT8_MAX, UINT8_MAX,         0},
-    {UINT8_MAX, UINT8_MAX,         0, UINT8_MAX},
-    {UINT8_MAX, UINT8_MAX,         0,         0},
-    {UINT8_MAX,         0, UINT8_MAX, UINT8_MAX},
-    {UINT8_MAX,         0, UINT8_MAX,         0},
-    {UINT8_MAX,         0,         0, UINT8_MAX},
-    {UINT8_MAX,         0,         0,         0},
-    {        0, UINT8_MAX, UINT8_MAX, UINT8_MAX},
-    {        0, UINT8_MAX, UINT8_MAX,         0},
-    {        0, UINT8_MAX,         0, UINT8_MAX},
-    {        0, UINT8_MAX,         0,         0},
-    {        0,         0, UINT8_MAX, UINT8_MAX},
-    {        0,         0, UINT8_MAX,         0},
-    {        0,         0,         0, UINT8_MAX},
-    {        0,         0,         0,         0},
-};
-
-
-Hwc2TestComposition::Hwc2TestComposition(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(coverage, mCompleteCompositions, mBasicCompositions,
-            mDefaultCompositions, mCompositionSupport) { }
-
-std::string Hwc2TestComposition::dump() const
-{
-    std::stringstream dmp;
-    dmp << "\tcomposition: " << getCompositionName(get()) << "\n";
-    return dmp.str();
-}
-
-const std::vector<hwc2_composition_t> Hwc2TestComposition::mDefaultCompositions = {
-    HWC2_COMPOSITION_DEVICE,
-};
-
-const std::vector<hwc2_composition_t> Hwc2TestComposition::mBasicCompositions = {
-    HWC2_COMPOSITION_CLIENT,
-    HWC2_COMPOSITION_DEVICE,
-};
-
-const std::vector<hwc2_composition_t> Hwc2TestComposition::mCompleteCompositions = {
-    HWC2_COMPOSITION_CLIENT,
-    HWC2_COMPOSITION_DEVICE,
-    HWC2_COMPOSITION_SOLID_COLOR,
-    HWC2_COMPOSITION_CURSOR,
-    HWC2_COMPOSITION_SIDEBAND,
-};
-
-
-Hwc2TestDataspace::Hwc2TestDataspace(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(coverage, completeDataspaces, basicDataspaces,
-            defaultDataspaces, mCompositionSupport) { }
-
-std::string Hwc2TestDataspace::dump() const
-{
-    std::stringstream dmp;
-    dmp << "\tdataspace: " << static_cast<int32_t>(get()) << "\n";
-    return dmp.str();
-}
-
-const std::vector<android::ui::Dataspace> Hwc2TestDataspace::defaultDataspaces = {
-    android::ui::Dataspace::UNKNOWN,
-};
-
-const std::vector<android::ui::Dataspace> Hwc2TestDataspace::basicDataspaces = {
-    android::ui::Dataspace::UNKNOWN,
-    android::ui::Dataspace::V0_SRGB,
-};
-
-const std::vector<android::ui::Dataspace> Hwc2TestDataspace::completeDataspaces = {
-    android::ui::Dataspace::UNKNOWN,
-    android::ui::Dataspace::ARBITRARY,
-    android::ui::Dataspace::STANDARD_SHIFT,
-    android::ui::Dataspace::STANDARD_MASK,
-    android::ui::Dataspace::STANDARD_UNSPECIFIED,
-    android::ui::Dataspace::STANDARD_BT709,
-    android::ui::Dataspace::STANDARD_BT601_625,
-    android::ui::Dataspace::STANDARD_BT601_625_UNADJUSTED,
-    android::ui::Dataspace::STANDARD_BT601_525,
-    android::ui::Dataspace::STANDARD_BT601_525_UNADJUSTED,
-    android::ui::Dataspace::STANDARD_BT2020,
-    android::ui::Dataspace::STANDARD_BT2020_CONSTANT_LUMINANCE,
-    android::ui::Dataspace::STANDARD_BT470M,
-    android::ui::Dataspace::STANDARD_FILM,
-    android::ui::Dataspace::TRANSFER_SHIFT,
-    android::ui::Dataspace::TRANSFER_MASK,
-    android::ui::Dataspace::TRANSFER_UNSPECIFIED,
-    android::ui::Dataspace::TRANSFER_LINEAR,
-    android::ui::Dataspace::TRANSFER_SRGB,
-    android::ui::Dataspace::TRANSFER_SMPTE_170M,
-    android::ui::Dataspace::TRANSFER_GAMMA2_2,
-    android::ui::Dataspace::TRANSFER_GAMMA2_8,
-    android::ui::Dataspace::TRANSFER_ST2084,
-    android::ui::Dataspace::TRANSFER_HLG,
-    android::ui::Dataspace::RANGE_SHIFT,
-    android::ui::Dataspace::RANGE_MASK,
-    android::ui::Dataspace::RANGE_UNSPECIFIED,
-    android::ui::Dataspace::RANGE_FULL,
-    android::ui::Dataspace::RANGE_LIMITED,
-    android::ui::Dataspace::SRGB_LINEAR,
-    android::ui::Dataspace::V0_SRGB_LINEAR,
-    android::ui::Dataspace::SRGB,
-    android::ui::Dataspace::V0_SRGB,
-    android::ui::Dataspace::JFIF,
-    android::ui::Dataspace::V0_JFIF,
-    android::ui::Dataspace::BT601_625,
-    android::ui::Dataspace::V0_BT601_625,
-    android::ui::Dataspace::BT601_525,
-    android::ui::Dataspace::V0_BT601_525,
-    android::ui::Dataspace::BT709,
-    android::ui::Dataspace::V0_BT709,
-    android::ui::Dataspace::DEPTH,
-};
-
-
-Hwc2TestDisplayDimension::Hwc2TestDisplayDimension(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(
-            (coverage == Hwc2TestCoverage::Complete)? mCompleteDisplayDimensions:
-            (coverage == Hwc2TestCoverage::Basic)? mBasicDisplayDimensions:
-            mDefaultDisplayDimensions, mCompositionSupport) { }
-
-std::string Hwc2TestDisplayDimension::dump() const
-{
-    std::stringstream dmp;
-    const UnsignedArea& curr = get();
-    dmp << "\tdisplay dimension: " << curr.width<< " x " << curr.height<< "\n";
-    return dmp.str();
-}
-
-void Hwc2TestDisplayDimension::setDependent(Hwc2TestVirtualBuffer* buffer)
-{
-    mBuffers.insert(buffer);
-    updateDependents();
-}
-
-void Hwc2TestDisplayDimension::updateDependents()
-{
-    const UnsignedArea& curr = get();
-
-    for (Hwc2TestVirtualBuffer* buffer : mBuffers)
-        buffer->updateBufferArea({static_cast<int32_t>(curr.width),
-                static_cast<int32_t>(curr.height)});
-}
-
-const std::vector<UnsignedArea>
-        Hwc2TestDisplayDimension::mDefaultDisplayDimensions = {
-    {1920, 1080},
-};
-
-const std::vector<UnsignedArea>
-        Hwc2TestDisplayDimension::mBasicDisplayDimensions = {
-    {640, 480},
-    {1280, 720},
-    {1920, 1080},
-    {1920, 1200},
-};
-
-const std::vector<UnsignedArea>
-        Hwc2TestDisplayDimension::mCompleteDisplayDimensions = {
-    {320, 240},
-    {480, 320},
-    {640, 480},
-    {1280, 720},
-    {1920, 1080},
-    {1920, 1200},
-    {2560, 1440},
-    {2560, 1600},
-    {3840, 2160},
-    {4096, 2160},
-};
-
-
-Hwc2TestDisplayFrame::Hwc2TestDisplayFrame(Hwc2TestCoverage coverage,
-        const Area& displayArea)
-    : Hwc2TestProperty(mDisplayFrames, mCompositionSupport),
-      mFrectScalars((coverage == Hwc2TestCoverage::Complete)? mCompleteFrectScalars:
-            (coverage == Hwc2TestCoverage::Basic)? mBasicFrectScalars:
-            mDefaultFrectScalars),
-      mDisplayArea(displayArea)
-{
-    update();
-}
-
-std::string Hwc2TestDisplayFrame::dump() const
-{
-    std::stringstream dmp;
-    const hwc_rect_t& displayFrame = get();
-    dmp << "\tdisplay frame: left " << displayFrame.left << ", top "
-            << displayFrame.top << ", right " << displayFrame.right
-            << ", bottom " << displayFrame.bottom << "\n";
-    return dmp.str();
-}
-
-void Hwc2TestDisplayFrame::update()
-{
-    mDisplayFrames.clear();
-
-    if (mDisplayArea.width == 0 && mDisplayArea.height == 0) {
-        mDisplayFrames.push_back({0, 0, 0, 0});
-        return;
-    }
-
-    for (const auto& frectScalar : mFrectScalars) {
-        mDisplayFrames.push_back({
-                static_cast<int>(frectScalar.left * mDisplayArea.width),
-                static_cast<int>(frectScalar.top * mDisplayArea.height),
-                static_cast<int>(frectScalar.right * mDisplayArea.width),
-                static_cast<int>(frectScalar.bottom * mDisplayArea.height)});
-    }
-}
-
-const std::vector<hwc_frect_t> Hwc2TestDisplayFrame::mDefaultFrectScalars = {
-    {0.0, 0.0, 1.0, 1.0},
-};
-
-const std::vector<hwc_frect_t> Hwc2TestDisplayFrame::mBasicFrectScalars = {
-    {0.0, 0.0, 1.0, 1.0},
-    {0.0, 0.0, 1.0, 0.05},
-    {0.0, 0.95, 1.0, 1.0},
-};
-
-const std::vector<hwc_frect_t> Hwc2TestDisplayFrame::mCompleteFrectScalars = {
-    {0.0, 0.0, 1.0, 1.0},
-    {0.0, 0.05, 1.0, 0.95},
-    {0.0, 0.05, 1.0, 1.0},
-    {0.0, 0.0, 1.0, 0.05},
-    {0.0, 0.95, 1.0, 1.0},
-    {0.25, 0.0, 0.75, 0.35},
-    {0.25, 0.25, 0.75, 0.75},
-};
-
-
-Hwc2TestPlaneAlpha::Hwc2TestPlaneAlpha(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(coverage, mCompletePlaneAlphas, mBasicPlaneAlphas,
-            mDefaultPlaneAlphas, mCompositionSupport) { }
-
-std::string Hwc2TestPlaneAlpha::dump() const
-{
-    std::stringstream dmp;
-    dmp << "\tplane alpha: " << get() << "\n";
-    return dmp.str();
-}
-
-const std::vector<float> Hwc2TestPlaneAlpha::mDefaultPlaneAlphas = {
-    1.0f,
-};
-
-const std::vector<float> Hwc2TestPlaneAlpha::mBasicPlaneAlphas = {
-    1.0f, 0.0f,
-};
-
-const std::vector<float> Hwc2TestPlaneAlpha::mCompletePlaneAlphas = {
-    1.0f, 0.75f, 0.5f, 0.25f, 0.0f,
-};
-
-
-Hwc2TestSourceCrop::Hwc2TestSourceCrop(Hwc2TestCoverage coverage,
-        const Area& bufferArea)
-    : Hwc2TestProperty(mSourceCrops, mCompositionSupport),
-      mFrectScalars((coverage == Hwc2TestCoverage::Complete)? mCompleteFrectScalars:
-            (coverage == Hwc2TestCoverage::Basic)? mBasicFrectScalars:
-            mDefaultFrectScalars),
-      mBufferArea(bufferArea)
-{
-    update();
-}
-
-std::string Hwc2TestSourceCrop::dump() const
-{
-    std::stringstream dmp;
-    const hwc_frect_t& sourceCrop = get();
-    dmp << "\tsource crop: left " << sourceCrop.left << ", top "
-            << sourceCrop.top << ", right " << sourceCrop.right << ", bottom "
-            << sourceCrop.bottom << "\n";
-    return dmp.str();
-}
-
-void Hwc2TestSourceCrop::updateBufferArea(const Area& bufferArea)
-{
-    mBufferArea = bufferArea;
-    update();
-}
-
-void Hwc2TestSourceCrop::update()
-{
-    mSourceCrops.clear();
-
-    if (mBufferArea.width == 0 && mBufferArea.height == 0) {
-        mSourceCrops.push_back({0, 0, 0, 0});
-        return;
-    }
-
-    for (const auto& frectScalar : mFrectScalars) {
-        mSourceCrops.push_back({
-                frectScalar.left * mBufferArea.width,
-                frectScalar.top * mBufferArea.height,
-                frectScalar.right * mBufferArea.width,
-                frectScalar.bottom * mBufferArea.height});
-    }
-}
-
-const std::vector<hwc_frect_t> Hwc2TestSourceCrop::mDefaultFrectScalars = {
-    {0.0, 0.0, 1.0, 1.0},
-};
-
-const std::vector<hwc_frect_t> Hwc2TestSourceCrop::mBasicFrectScalars = {
-    {0.0, 0.0, 1.0, 1.0},
-    {0.0, 0.0, 0.5, 0.5},
-    {0.5, 0.5, 1.0, 1.0},
-};
-
-const std::vector<hwc_frect_t> Hwc2TestSourceCrop::mCompleteFrectScalars = {
-    {0.0, 0.0, 1.0, 1.0},
-    {0.0, 0.0, 0.5, 0.5},
-    {0.5, 0.5, 1.0, 1.0},
-    {0.0, 0.0, 0.25, 0.25},
-    {0.25, 0.25, 0.75, 0.75},
-};
-
-
-Hwc2TestSurfaceDamage::Hwc2TestSurfaceDamage(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(mSurfaceDamages, mCompositionSupport),
-      mRegionScalars((coverage == Hwc2TestCoverage::Complete)? mCompleteRegionScalars:
-            (coverage == Hwc2TestCoverage::Basic)? mBasicRegionScalars:
-            mDefaultRegionScalars)
-{
-    update();
-}
-
-Hwc2TestSurfaceDamage::~Hwc2TestSurfaceDamage()
-{
-    freeSurfaceDamages();
-}
-
-std::string Hwc2TestSurfaceDamage::dump() const
-{
-    std::stringstream dmp;
-
-    const hwc_region_t& curr = get();
-    dmp << "\tsurface damage: region count " << curr.numRects << "\n";
-    for (size_t i = 0; i < curr.numRects; i++) {
-        const hwc_rect_t& rect = curr.rects[i];
-        dmp << "\t\trect: left " << rect.left << ", top " << rect.top
-                << ", right " << rect.right << ", bottom " << rect.bottom << "\n";
-    }
-
-    return dmp.str();
-}
-
-void Hwc2TestSurfaceDamage::updateBufferArea(const Area& bufferArea)
-{
-    mBufferArea = bufferArea;
-    update();
-}
-
-void Hwc2TestSurfaceDamage::update()
-{
-    freeSurfaceDamages();
-
-    if (mBufferArea.width == 0 && mBufferArea.height == 0) {
-        mSurfaceDamages.push_back({0, nullptr});
-        return;
-    }
-
-    hwc_region_t damage;
-
-    for (const auto& regionScalar : mRegionScalars) {
-        damage.numRects = regionScalar.size();
-
-        if (damage.numRects > 0) {
-            hwc_rect_t* rects = new hwc_rect_t[damage.numRects];
-            if (!rects) {
-                ALOGW("failed to allocate new hwc_rect_t array");
-                continue;
-            }
-
-            for (size_t i = 0; i < damage.numRects; i++) {
-                rects[i].left = regionScalar[i].left * mBufferArea.width;
-                rects[i].top = regionScalar[i].top * mBufferArea.height;
-                rects[i].right = regionScalar[i].right * mBufferArea.width;
-                rects[i].bottom = regionScalar[i].bottom * mBufferArea.height;
-            }
-
-            damage.rects = static_cast<hwc_rect_t const*>(rects);
-        } else {
-            damage.rects = nullptr;
-        }
-
-        mSurfaceDamages.push_back(damage);
-    }
-}
-
-void Hwc2TestSurfaceDamage::freeSurfaceDamages()
-{
-    for (const auto& surfaceDamage : mSurfaceDamages) {
-        if (surfaceDamage.numRects > 0 && surfaceDamage.rects)
-            delete[] surfaceDamage.rects;
-    }
-    mSurfaceDamages.clear();
-}
-
-const std::vector<std::vector<hwc_frect_t>> Hwc2TestSurfaceDamage::mDefaultRegionScalars = {
-    {{}},
-};
-
-const std::vector<std::vector<hwc_frect_t>> Hwc2TestSurfaceDamage::mBasicRegionScalars = {
-    {{}},
-    {{0.0, 0.0, 1.0, 1.0}},
-};
-
-const std::vector<std::vector<hwc_frect_t>> Hwc2TestSurfaceDamage::mCompleteRegionScalars = {
-    {{}},
-    {{0.0, 0.0, 1.0, 1.0}},
-    {{0.0, 0.0, 0.5, 0.5}, {0.5, 0.5, 1.0, 1.0}},
-};
-
-
-Hwc2TestTransform::Hwc2TestTransform(Hwc2TestCoverage coverage)
-    : Hwc2TestProperty(coverage, mCompleteTransforms, mBasicTransforms,
-            mDefaultTransforms, mCompositionSupport) { }
-
-std::string Hwc2TestTransform::dump() const
-{
-    std::stringstream dmp;
-    dmp << "\ttransform: " << getTransformName(get()) << "\n";
-    return dmp.str();
-}
-
-const std::vector<hwc_transform_t> Hwc2TestTransform::mDefaultTransforms = {
-    static_cast<hwc_transform_t>(0),
-};
-
-const std::vector<hwc_transform_t> Hwc2TestTransform::mBasicTransforms = {
-    static_cast<hwc_transform_t>(0),
-    HWC_TRANSFORM_FLIP_H,
-    HWC_TRANSFORM_FLIP_V,
-    HWC_TRANSFORM_ROT_90,
-};
-
-const std::vector<hwc_transform_t> Hwc2TestTransform::mCompleteTransforms = {
-    static_cast<hwc_transform_t>(0),
-    HWC_TRANSFORM_FLIP_H,
-    HWC_TRANSFORM_FLIP_V,
-    HWC_TRANSFORM_ROT_90,
-    HWC_TRANSFORM_ROT_180,
-    HWC_TRANSFORM_ROT_270,
-    HWC_TRANSFORM_FLIP_H_ROT_90,
-    HWC_TRANSFORM_FLIP_V_ROT_90,
-};
-
-
-Hwc2TestVisibleRegion::~Hwc2TestVisibleRegion()
-{
-    release();
-}
-
-std::string Hwc2TestVisibleRegion::dump() const
-{
-    std::stringstream dmp;
-
-    const hwc_region_t& curr = get();
-    dmp << "\tvisible region: region count " << curr.numRects << "\n";
-    for (size_t i = 0; i < curr.numRects; i++) {
-        const hwc_rect_t& rect = curr.rects[i];
-        dmp << "\t\trect: left " << rect.left << ", top " << rect.top
-                << ", right " << rect.right << ", bottom " << rect.bottom << "\n";
-    }
-
-    return dmp.str();
-}
-
-void Hwc2TestVisibleRegion::set(const android::Region& visibleRegion)
-{
-    release();
-
-    size_t size = 0;
-    const android::Rect* rects = visibleRegion.getArray(&size);
-
-    mVisibleRegion.numRects = size;
-    mVisibleRegion.rects = nullptr;
-
-    if (size > 0) {
-        hwc_rect_t* hwcRects = new hwc_rect_t[size];
-        for (size_t i = 0; i < size; i++) {
-            hwcRects[i].left = rects[i].left;
-            hwcRects[i].top = rects[i].top;
-            hwcRects[i].right = rects[i].right;
-            hwcRects[i].bottom = rects[i].bottom;
-        }
-        mVisibleRegion.rects = hwcRects;
-    }
-}
-
-hwc_region_t Hwc2TestVisibleRegion::get() const
-{
-    return mVisibleRegion;
-}
-
-void Hwc2TestVisibleRegion::release()
-{
-    if (mVisibleRegion.numRects > 0 && mVisibleRegion.rects)
-        delete[] mVisibleRegion.rects;
-    mVisibleRegion.rects = nullptr;
-    mVisibleRegion.numRects = 0;
-}
-
-/* Identifies which layer properties are supported by each composition type.
- * hwc2_composition_t values range from:
- *  HWC2_COMPOSITION_INVALID = 0,
- *  HWC2_COMPOSITION_CLIENT = 1,
- *  HWC2_COMPOSITION_DEVICE = 2,
- *  HWC2_COMPOSITION_SOLID_COLOR = 3,
- *  HWC2_COMPOSITION_CURSOR = 4,
- *  HWC2_COMPOSITION_SIDEBAND = 5,
- *
- * Each property array can be indexed by a hwc2_composition_t value.
- * By using an array instead of a more complex data structure, runtimes for
- * some test cases showed a noticeable improvement.
- */
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestBufferArea::mCompositionSupport = {{
-    false,   true,    true,    false,   true,    true,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestBlendMode::mCompositionSupport = {{
-    false,   true,    true,    false,   true,    true,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestColor::mCompositionSupport = {{
-    false,   false,   false,   true,    false,   false,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestComposition::mCompositionSupport = {{
-    false,   true,    true,    true,    true,    true,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestDataspace::mCompositionSupport = {{
-    false,   true,    true,    true,    true,    false,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestDisplayDimension::mCompositionSupport = {{
-    false,   true,    true,    true,    true,    true,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestDisplayFrame::mCompositionSupport = {{
-    false,   true,    true,    true,    false,   true,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestPlaneAlpha::mCompositionSupport = {{
-    false,   true,    true,    true,    true,    true,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestSourceCrop::mCompositionSupport = {{
-    false,   true,    true,    false,   true,    false,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestSurfaceDamage::mCompositionSupport = {{
-    false,   false,   true,    false,   true,    false,
-}};
-
-/*  INVALID  CLIENT   DEVICE   COLOR    CURSOR   SIDEBAND */
-const std::array<bool, 6> Hwc2TestTransform::mCompositionSupport = {{
-    false,   true,    true,    false,   true,    true,
-}};
-
-// TODO(b/129481165): remove the #pragma below and fix conversion issues
-#pragma clang diagnostic pop // ignored "-Wconversion"
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestProperties.h b/services/surfaceflinger/tests/hwc2/Hwc2TestProperties.h
deleted file mode 100644
index 06ae314..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestProperties.h
+++ /dev/null
@@ -1,386 +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.
- */
-
-#ifndef _HWC2_TEST_PROPERTIES_H
-#define _HWC2_TEST_PROPERTIES_H
-
-#include <array>
-#include <vector>
-
-#include <ui/GraphicTypes.h>
-#include <ui/Region.h>
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-enum class Hwc2TestCoverage {
-    Default = 0,
-    Basic,
-    Complete,
-};
-
-enum class Hwc2TestPropertyName {
-    BlendMode = 1,
-    BufferArea,
-    Color,
-    Composition,
-    CursorPosition,
-    Dataspace,
-    DisplayFrame,
-    PlaneAlpha,
-    SourceCrop,
-    SurfaceDamage,
-    Transform,
-};
-
-typedef struct {
-    int32_t width;
-    int32_t height;
-} Area;
-
-
-typedef struct {
-    uint32_t width;
-    uint32_t height;
-} UnsignedArea;
-
-
-class Hwc2TestContainer {
-public:
-    virtual ~Hwc2TestContainer() = default;
-
-    /* Resets the container */
-    virtual void reset() = 0;
-
-    /* Attempts to advance to the next valid value. Returns true if one can be
-     * found */
-    virtual bool advance() = 0;
-
-    virtual std::string dump() const = 0;
-
-    /* Returns true if the container supports the given composition type */
-    virtual bool isSupported(hwc2_composition_t composition) = 0;
-};
-
-
-template <class T>
-class Hwc2TestProperty : public Hwc2TestContainer {
-public:
-    Hwc2TestProperty(Hwc2TestCoverage coverage,
-            const std::vector<T>& completeList, const std::vector<T>& basicList,
-            const std::vector<T>& defaultList,
-            const std::array<bool, 6>& compositionSupport)
-        : Hwc2TestProperty((coverage == Hwc2TestCoverage::Complete)? completeList:
-                (coverage == Hwc2TestCoverage::Basic)? basicList : defaultList,
-                compositionSupport) { }
-
-    Hwc2TestProperty(const std::vector<T>& list,
-            const std::array<bool, 6>& compositionSupport)
-        : mList(list),
-          mCompositionSupport(compositionSupport) { }
-
-    void reset() override
-    {
-        mListIdx = 0;
-    }
-
-    bool advance() override
-    {
-        if (mListIdx + 1 < mList.size()) {
-            mListIdx++;
-            updateDependents();
-            return true;
-        }
-        reset();
-        updateDependents();
-        return false;
-    }
-
-    T get() const
-    {
-        return mList.at(mListIdx);
-    }
-
-    virtual bool isSupported(hwc2_composition_t composition)
-    {
-        return mCompositionSupport.at(composition);
-    }
-
-protected:
-    /* If a derived class has dependents, override this function */
-    virtual void updateDependents() { }
-
-    const std::vector<T>& mList;
-    size_t mListIdx = 0;
-
-    const std::array<bool, 6>& mCompositionSupport;
-};
-
-class Hwc2TestBuffer;
-class Hwc2TestSourceCrop;
-class Hwc2TestSurfaceDamage;
-
-class Hwc2TestBufferArea : public Hwc2TestProperty<Area> {
-public:
-    Hwc2TestBufferArea(Hwc2TestCoverage coverage, const Area& displayArea);
-
-    std::string dump() const override;
-
-    void setDependent(Hwc2TestBuffer* buffer);
-    void setDependent(Hwc2TestSourceCrop* sourceCrop);
-    void setDependent(Hwc2TestSurfaceDamage* surfaceDamage);
-
-protected:
-    void update();
-    void updateDependents() override;
-
-    const std::vector<float>& mScalars;
-    static const std::vector<float> mDefaultScalars;
-    static const std::vector<float> mBasicScalars;
-    static const std::vector<float> mCompleteScalars;
-
-    Area mDisplayArea;
-
-    Hwc2TestBuffer* mBuffer = nullptr;
-    Hwc2TestSourceCrop* mSourceCrop = nullptr;
-    Hwc2TestSurfaceDamage* mSurfaceDamage = nullptr;
-
-    std::vector<Area> mBufferAreas;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestColor;
-
-class Hwc2TestBlendMode : public Hwc2TestProperty<hwc2_blend_mode_t> {
-public:
-    explicit Hwc2TestBlendMode(Hwc2TestCoverage coverage);
-
-    std::string dump() const override;
-
-    void setDependent(Hwc2TestColor* color);
-
-protected:
-    void updateDependents() override;
-
-    Hwc2TestColor* mColor = nullptr;
-
-    static const std::vector<hwc2_blend_mode_t> mDefaultBlendModes;
-    static const std::vector<hwc2_blend_mode_t> mBasicBlendModes;
-    static const std::vector<hwc2_blend_mode_t> mCompleteBlendModes;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestColor : public Hwc2TestProperty<hwc_color_t> {
-public:
-    explicit Hwc2TestColor(Hwc2TestCoverage coverage,
-                           hwc2_blend_mode_t blendMode = HWC2_BLEND_MODE_NONE);
-
-    std::string dump() const override;
-
-    void updateBlendMode(hwc2_blend_mode_t blendMode);
-
-protected:
-    void update();
-
-    std::vector<hwc_color_t> mBaseColors;
-    static const std::vector<hwc_color_t> mDefaultBaseColors;
-    static const std::vector<hwc_color_t> mBasicBaseColors;
-    static const std::vector<hwc_color_t> mCompleteBaseColors;
-
-    hwc2_blend_mode_t mBlendMode;
-
-    std::vector<hwc_color_t> mColors;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestComposition : public Hwc2TestProperty<hwc2_composition_t> {
-public:
-    explicit Hwc2TestComposition(Hwc2TestCoverage coverage);
-
-    std::string dump() const override;
-
-protected:
-    static const std::vector<hwc2_composition_t> mDefaultCompositions;
-    static const std::vector<hwc2_composition_t> mBasicCompositions;
-    static const std::vector<hwc2_composition_t> mCompleteCompositions;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestDataspace : public Hwc2TestProperty<android::ui::Dataspace> {
-public:
-    explicit Hwc2TestDataspace(Hwc2TestCoverage coverage);
-
-    std::string dump() const override;
-
-protected:
-    static const std::vector<android::ui::Dataspace> defaultDataspaces;
-    static const std::vector<android::ui::Dataspace> basicDataspaces;
-    static const std::vector<android::ui::Dataspace> completeDataspaces;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-class Hwc2TestVirtualBuffer;
-
-class Hwc2TestDisplayDimension : public Hwc2TestProperty<UnsignedArea> {
-public:
-    explicit Hwc2TestDisplayDimension(Hwc2TestCoverage coverage);
-
-    std::string dump() const;
-
-    void setDependent(Hwc2TestVirtualBuffer* buffer);
-
-private:
-    void updateDependents();
-
-    std::set<Hwc2TestVirtualBuffer*> mBuffers;
-
-    static const std::vector<UnsignedArea> mDefaultDisplayDimensions;
-    static const std::vector<UnsignedArea> mBasicDisplayDimensions;
-    static const std::vector<UnsignedArea> mCompleteDisplayDimensions;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestDisplayFrame : public Hwc2TestProperty<hwc_rect_t> {
-public:
-    Hwc2TestDisplayFrame(Hwc2TestCoverage coverage, const Area& displayArea);
-
-    std::string dump() const override;
-
-protected:
-    void update();
-
-    const std::vector<hwc_frect_t>& mFrectScalars;
-    const static std::vector<hwc_frect_t> mDefaultFrectScalars;
-    const static std::vector<hwc_frect_t> mBasicFrectScalars;
-    const static std::vector<hwc_frect_t> mCompleteFrectScalars;
-
-    Area mDisplayArea;
-
-    std::vector<hwc_rect_t> mDisplayFrames;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestPlaneAlpha : public Hwc2TestProperty<float> {
-public:
-    explicit Hwc2TestPlaneAlpha(Hwc2TestCoverage coverage);
-
-    std::string dump() const override;
-
-protected:
-    static const std::vector<float> mDefaultPlaneAlphas;
-    static const std::vector<float> mBasicPlaneAlphas;
-    static const std::vector<float> mCompletePlaneAlphas;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestSourceCrop : public Hwc2TestProperty<hwc_frect_t> {
-public:
-    explicit Hwc2TestSourceCrop(Hwc2TestCoverage coverage, const Area& bufferArea = {0, 0});
-
-    std::string dump() const override;
-
-    void updateBufferArea(const Area& bufferArea);
-
-protected:
-    void update();
-
-    const std::vector<hwc_frect_t>& mFrectScalars;
-    const static std::vector<hwc_frect_t> mDefaultFrectScalars;
-    const static std::vector<hwc_frect_t> mBasicFrectScalars;
-    const static std::vector<hwc_frect_t> mCompleteFrectScalars;
-
-    Area mBufferArea;
-
-    std::vector<hwc_frect_t> mSourceCrops;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestSurfaceDamage : public Hwc2TestProperty<hwc_region_t> {
-public:
-    explicit Hwc2TestSurfaceDamage(Hwc2TestCoverage coverage);
-    ~Hwc2TestSurfaceDamage();
-
-    std::string dump() const override;
-
-    void updateBufferArea(const Area& bufferArea);
-
-protected:
-    void update();
-    void freeSurfaceDamages();
-
-    const std::vector<std::vector<hwc_frect_t>> &mRegionScalars;
-    const static std::vector<std::vector<hwc_frect_t>> mDefaultRegionScalars;
-    const static std::vector<std::vector<hwc_frect_t>> mBasicRegionScalars;
-    const static std::vector<std::vector<hwc_frect_t>> mCompleteRegionScalars;
-
-    Area mBufferArea = {0, 0};
-
-    std::vector<hwc_region_t> mSurfaceDamages;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestTransform : public Hwc2TestProperty<hwc_transform_t> {
-public:
-    explicit Hwc2TestTransform(Hwc2TestCoverage coverage);
-
-    std::string dump() const override;
-
-protected:
-    static const std::vector<hwc_transform_t> mDefaultTransforms;
-    static const std::vector<hwc_transform_t> mBasicTransforms;
-    static const std::vector<hwc_transform_t> mCompleteTransforms;
-
-    static const std::array<bool, 6> mCompositionSupport;
-};
-
-
-class Hwc2TestVisibleRegion {
-public:
-    ~Hwc2TestVisibleRegion();
-
-    std::string dump() const;
-
-    void set(const android::Region& visibleRegion);
-    hwc_region_t get() const;
-    void release();
-
-protected:
-    hwc_region_t mVisibleRegion = {0, nullptr};
-};
-
-#endif /* ifndef _HWC2_TEST_PROPERTIES_H */
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.cpp b/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.cpp
deleted file mode 100644
index e6cceb8..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.cpp
+++ /dev/null
@@ -1,98 +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.
- */
-
-#include <sstream>
-#include <sys/stat.h>
-
-#include "Hwc2TestVirtualDisplay.h"
-
-#define DIR_NAME "images"
-
-Hwc2TestVirtualDisplay::Hwc2TestVirtualDisplay(
-        Hwc2TestCoverage coverage)
-    : mDisplayDimension(coverage)
-{
-    mDisplayDimension.setDependent(&mOutputBuffer);
-    mDisplayDimension.setDependent(&mExpectedBuffer);
-}
-
-std::string Hwc2TestVirtualDisplay::dump() const
-{
-    std::stringstream dmp;
-
-    dmp << "virtual display: \n";
-
-    mDisplayDimension.dump();
-
-    return dmp.str();
-}
-
-int Hwc2TestVirtualDisplay::getOutputBuffer(buffer_handle_t* outHandle,
-        android::base::unique_fd* outAcquireFence)
-{
-    int32_t acquireFence;
-    int ret = mOutputBuffer.getOutputBuffer(outHandle, &acquireFence);
-    outAcquireFence->reset(acquireFence);
-    return ret;
-}
-
-void Hwc2TestVirtualDisplay::reset()
-{
-    return mDisplayDimension.reset();
-}
-
-bool Hwc2TestVirtualDisplay::advance()
-{
-    return mDisplayDimension.advance();
-}
-
-UnsignedArea Hwc2TestVirtualDisplay::getDisplayDimension() const
-{
-    return mDisplayDimension.get();
-}
-
-int Hwc2TestVirtualDisplay::verifyOutputBuffer(const Hwc2TestLayers* testLayers,
-        const std::vector<hwc2_layer_t>* allLayers,
-        const std::set<hwc2_layer_t>* clearLayers)
-{
-    int ret = mExpectedBuffer.generateExpectedBuffer(testLayers, allLayers,
-            clearLayers);
-    if (ret)
-        return ret;
-
-    ComparatorResult::get().CompareBuffers(mOutputBuffer.graphicBuffer(),
-        mExpectedBuffer.graphicBuffer());
-
-    return 0;
-}
-
-int Hwc2TestVirtualDisplay::writeBuffersToFile(std::string name)
-{
-    std::ostringstream expectedPath;
-    std::ostringstream resultPath;
-    int ret = mkdir(DIR_NAME, DEFFILEMODE);
-    if (ret && errno != EEXIST)
-        return ret;
-
-    expectedPath << DIR_NAME << "/expected-" << name << ".png";
-    resultPath << DIR_NAME << "/result-" << name << ".png";
-
-    if (!mExpectedBuffer.writeBufferToFile(expectedPath.str()) ||
-            !mOutputBuffer.writeBufferToFile(resultPath.str()))
-        return -1;
-
-    return 0;
-}
diff --git a/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.h b/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.h
deleted file mode 100644
index 5a74a6c..0000000
--- a/services/surfaceflinger/tests/hwc2/Hwc2TestVirtualDisplay.h
+++ /dev/null
@@ -1,55 +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.
- */
-
-#ifndef _HWC2_TEST_VIRTUAL_DISPLAY_H
-#define _HWC2_TEST_VIRTUAL_DISPLAY_H
-
-#include "Hwc2TestBuffer.h"
-#include "Hwc2TestPixelComparator.h"
-#include "Hwc2TestProperties.h"
-
-#define HWC2_INCLUDE_STRINGIFICATION
-#define HWC2_USE_CPP11
-#include <hardware/hwcomposer2.h>
-#undef HWC2_INCLUDE_STRINGIFICATION
-#undef HWC2_USE_CPP11
-
-class Hwc2TestVirtualDisplay {
-public:
-    explicit Hwc2TestVirtualDisplay(Hwc2TestCoverage coverage);
-
-    std::string dump() const;
-
-    int getOutputBuffer(buffer_handle_t* outHandle,
-            android::base::unique_fd* outAcquireFence);
-
-    int verifyOutputBuffer(const Hwc2TestLayers* testLayers,
-            const std::vector<hwc2_layer_t>* allLayers,
-            const std::set<hwc2_layer_t>* clearLayers);
-
-    int writeBuffersToFile(std::string name);
-    void reset();
-    bool advance();
-
-    UnsignedArea getDisplayDimension() const;
-
-private:
-    Hwc2TestOutputBuffer mOutputBuffer;
-    Hwc2TestExpectedBuffer mExpectedBuffer;
-    Hwc2TestDisplayDimension mDisplayDimension;
-};
-
-#endif /* ifndef _HWC2_TEST_VIRTUAL_DISPLAY_H */
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index 2dcaf63..e0dd0d9 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -50,6 +50,14 @@
 namespace android {
 namespace {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
+using hal::Error;
+using hal::IComposer;
+using hal::IComposerClient;
+using hal::PowerMode;
+using hal::Transform;
+
 using testing::_;
 using testing::AtLeast;
 using testing::Between;
@@ -65,16 +73,11 @@
 using testing::ReturnRef;
 using testing::SetArgPointee;
 
-using android::Hwc2::Error;
-using android::Hwc2::IComposer;
-using android::Hwc2::IComposerClient;
-using android::Hwc2::Transform;
-
 using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
 using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
 
-constexpr hwc2_display_t HWC_DISPLAY = FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
-constexpr hwc2_layer_t HWC_LAYER = 5000;
+constexpr hal::HWDisplayId HWC_DISPLAY = FakeHwcDisplayInjector::DEFAULT_HWC_DISPLAY_ID;
+constexpr hal::HWLayerId HWC_LAYER = 5000;
 constexpr Transform DEFAULT_TRANSFORM = static_cast<Transform>(0);
 
 constexpr DisplayId DEFAULT_DISPLAY_ID = DisplayId{42};
@@ -141,10 +144,10 @@
 
         auto primaryDispSync = std::make_unique<mock::DispSync>();
 
-        EXPECT_CALL(*primaryDispSync, computeNextRefresh(0)).WillRepeatedly(Return(0));
+        EXPECT_CALL(*primaryDispSync, computeNextRefresh(0, _)).WillRepeatedly(Return(0));
         EXPECT_CALL(*primaryDispSync, getPeriod())
                 .WillRepeatedly(Return(FakeHwcDisplayInjector::DEFAULT_REFRESH_RATE));
-        EXPECT_CALL(*primaryDispSync, expectedPresentTime()).WillRepeatedly(Return(0));
+        EXPECT_CALL(*primaryDispSync, expectedPresentTime(_)).WillRepeatedly(Return(0));
 
         mFlinger.setupScheduler(std::move(primaryDispSync),
                                 std::make_unique<mock::EventControlThread>(),
@@ -170,7 +173,7 @@
     template <typename Case>
     void captureScreenComposition();
 
-    std::unordered_set<HWC2::Capability> mDefaultCapabilities = {HWC2::Capability::SidebandStream};
+    std::unordered_set<hal::Capability> mDefaultCapabilities = {hal::Capability::SIDEBAND_STREAM};
 
     bool mDisplayOff = false;
     TestableSurfaceFlinger mFlinger;
@@ -228,6 +231,7 @@
     const Rect sourceCrop(0, 0, DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT);
     constexpr bool useIdentityTransform = true;
     constexpr bool forSystem = true;
+    constexpr bool regionSampling = false;
 
     DisplayRenderArea renderArea(mDisplay, sourceCrop, DEFAULT_DISPLAY_WIDTH,
                                  DEFAULT_DISPLAY_HEIGHT, ui::Dataspace::V0_SRGB,
@@ -246,7 +250,7 @@
     int fd = -1;
     status_t result =
             mFlinger.captureScreenImplLocked(renderArea, traverseLayers, mCaptureScreenBuffer.get(),
-                                             useIdentityTransform, forSystem, &fd);
+                                             useIdentityTransform, forSystem, &fd, regionSampling);
     if (fd >= 0) {
         close(fd);
     }
@@ -263,17 +267,13 @@
 template <typename Derived>
 struct BaseDisplayVariant {
     static constexpr bool IS_SECURE = true;
-    static constexpr int INIT_POWER_MODE = HWC_POWER_MODE_NORMAL;
+    static constexpr hal::PowerMode INIT_POWER_MODE = hal::PowerMode::ON;
 
     static void setupPreconditions(CompositionTest* test) {
-        EXPECT_CALL(*test->mComposer,
-                    setPowerMode(HWC_DISPLAY,
-                                 static_cast<Hwc2::IComposerClient::PowerMode>(
-                                         Derived::INIT_POWER_MODE)))
+        EXPECT_CALL(*test->mComposer, setPowerMode(HWC_DISPLAY, Derived::INIT_POWER_MODE))
                 .WillOnce(Return(Error::NONE));
 
-        FakeHwcDisplayInjector(DEFAULT_DISPLAY_ID, HWC2::DisplayType::Physical,
-                               true /* isPrimary */)
+        FakeHwcDisplayInjector(DEFAULT_DISPLAY_ID, hal::DisplayType::PHYSICAL, true /* isPrimary */)
                 .setCapabilities(&test->mDefaultCapabilities)
                 .setPowerMode(Derived::INIT_POWER_MODE)
                 .inject(&test->mFlinger, test->mComposer);
@@ -437,7 +437,7 @@
 };
 
 struct PoweredOffDisplaySetupVariant : public BaseDisplayVariant<PoweredOffDisplaySetupVariant> {
-    static constexpr int INIT_POWER_MODE = HWC_POWER_MODE_OFF;
+    static constexpr hal::PowerMode INIT_POWER_MODE = hal::PowerMode::OFF;
 
     template <typename Case>
     static void setupPreconditionCallExpectations(CompositionTest*) {}
@@ -989,7 +989,7 @@
 
 template <IComposerClient::Composition CompositionType>
 struct KeepCompositionTypeVariant {
-    static constexpr HWC2::Composition TYPE = static_cast<HWC2::Composition>(CompositionType);
+    static constexpr hal::Composition TYPE = CompositionType;
 
     static void setupHwcSetCallExpectations(CompositionTest* test) {
         if (!test->mDisplayOff) {
@@ -1007,7 +1007,7 @@
 template <IComposerClient::Composition InitialCompositionType,
           IComposerClient::Composition FinalCompositionType>
 struct ChangeCompositionTypeVariant {
-    static constexpr HWC2::Composition TYPE = static_cast<HWC2::Composition>(FinalCompositionType);
+    static constexpr hal::Composition TYPE = FinalCompositionType;
 
     static void setupHwcSetCallExpectations(CompositionTest* test) {
         if (!test->mDisplayOff) {
diff --git a/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp b/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
index 2e705da..afebc40 100644
--- a/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DispSyncSourceTest.cpp
@@ -43,7 +43,7 @@
     void createDispSync();
     void createDispSyncSource();
 
-    void onVSyncEvent(nsecs_t when) override;
+    void onVSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) override;
 
     std::unique_ptr<mock::DispSync> mDispSync;
     std::unique_ptr<DispSyncSource> mDispSyncSource;
@@ -66,7 +66,7 @@
     ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
 }
 
-void DispSyncSourceTest::onVSyncEvent(nsecs_t when) {
+void DispSyncSourceTest::onVSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) {
     ALOGD("onVSyncEvent: %" PRId64, when);
 
     mVSyncEventCallRecorder.recordCall(when);
diff --git a/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp b/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp
index cc11aa9..2a0e913 100644
--- a/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp
@@ -209,12 +209,11 @@
     EXPECT_EQ(41, edid->manufactureWeek);
     ASSERT_TRUE(edid->cea861Block);
     ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock);
-    ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock->physicalAddress);
     auto physicalAddress = edid->cea861Block->hdmiVendorDataBlock->physicalAddress;
-    EXPECT_EQ(2, physicalAddress->a);
-    EXPECT_EQ(0, physicalAddress->b);
-    EXPECT_EQ(0, physicalAddress->c);
-    EXPECT_EQ(0, physicalAddress->d);
+    EXPECT_EQ(2, physicalAddress.a);
+    EXPECT_EQ(0, physicalAddress.b);
+    EXPECT_EQ(0, physicalAddress.c);
+    EXPECT_EQ(0, physicalAddress.d);
 
     edid = parseEdid(getPanasonicTvEdid());
     ASSERT_TRUE(edid);
@@ -227,12 +226,11 @@
     EXPECT_EQ(0, edid->manufactureWeek);
     ASSERT_TRUE(edid->cea861Block);
     ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock);
-    ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock->physicalAddress);
     physicalAddress = edid->cea861Block->hdmiVendorDataBlock->physicalAddress;
-    EXPECT_EQ(2, physicalAddress->a);
-    EXPECT_EQ(0, physicalAddress->b);
-    EXPECT_EQ(0, physicalAddress->c);
-    EXPECT_EQ(0, physicalAddress->d);
+    EXPECT_EQ(2, physicalAddress.a);
+    EXPECT_EQ(0, physicalAddress.b);
+    EXPECT_EQ(0, physicalAddress.c);
+    EXPECT_EQ(0, physicalAddress.d);
 
     edid = parseEdid(getHisenseTvEdid());
     ASSERT_TRUE(edid);
@@ -245,12 +243,11 @@
     EXPECT_EQ(18, edid->manufactureWeek);
     ASSERT_TRUE(edid->cea861Block);
     ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock);
-    ASSERT_TRUE(edid->cea861Block->hdmiVendorDataBlock->physicalAddress);
     physicalAddress = edid->cea861Block->hdmiVendorDataBlock->physicalAddress;
-    EXPECT_EQ(1, physicalAddress->a);
-    EXPECT_EQ(2, physicalAddress->b);
-    EXPECT_EQ(3, physicalAddress->c);
-    EXPECT_EQ(4, physicalAddress->d);
+    EXPECT_EQ(1, physicalAddress.a);
+    EXPECT_EQ(2, physicalAddress.b);
+    EXPECT_EQ(3, physicalAddress.c);
+    EXPECT_EQ(4, physicalAddress.d);
 
     edid = parseEdid(getCtlDisplayEdid());
     ASSERT_TRUE(edid);
@@ -315,6 +312,7 @@
     using ManufactureYear = DeviceProductInfo::ManufactureYear;
     using ManufactureWeekAndYear = DeviceProductInfo::ManufactureWeekAndYear;
     using ModelYear = DeviceProductInfo::ModelYear;
+    using RelativeAddress = DeviceProductInfo::RelativeAddress;
 
     {
         const auto displayIdInfo = parseDisplayIdentificationData(0, getInternalEdid());
@@ -326,6 +324,7 @@
         EXPECT_STREQ("12610", info.productId.data());
         ASSERT_TRUE(std::holds_alternative<ManufactureYear>(info.manufactureOrModelDate));
         EXPECT_EQ(2011, std::get<ManufactureYear>(info.manufactureOrModelDate).year);
+        EXPECT_EQ(DeviceProductInfo::NO_RELATIVE_ADDRESS, info.relativeAddress);
     }
     {
         const auto displayIdInfo = parseDisplayIdentificationData(0, getExternalEdid());
@@ -339,6 +338,7 @@
         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2012, date.year);
         EXPECT_EQ(2, date.week);
+        EXPECT_EQ(DeviceProductInfo::NO_RELATIVE_ADDRESS, info.relativeAddress);
     }
     {
         const auto displayIdInfo = parseDisplayIdentificationData(0, getExternalEedid());
@@ -352,6 +352,7 @@
         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2011, date.year);
         EXPECT_EQ(41, date.week);
+        EXPECT_EQ((RelativeAddress{{2, 0, 0, 0}}), info.relativeAddress);
     }
     {
         const auto displayIdInfo = parseDisplayIdentificationData(0, getPanasonicTvEdid());
@@ -364,6 +365,7 @@
         ASSERT_TRUE(std::holds_alternative<ManufactureYear>(info.manufactureOrModelDate));
         const auto& date = std::get<ManufactureYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2019, date.year);
+        EXPECT_EQ((RelativeAddress{{2, 0, 0, 0}}), info.relativeAddress);
     }
     {
         const auto displayIdInfo = parseDisplayIdentificationData(0, getHisenseTvEdid());
@@ -377,6 +379,7 @@
         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2019, date.year);
         EXPECT_EQ(18, date.week);
+        EXPECT_EQ((RelativeAddress{{1, 2, 3, 4}}), info.relativeAddress);
     }
     {
         const auto displayIdInfo = parseDisplayIdentificationData(0, getCtlDisplayEdid());
@@ -388,6 +391,7 @@
         EXPECT_STREQ("9373", info.productId.data());
         ASSERT_TRUE(std::holds_alternative<ModelYear>(info.manufactureOrModelDate));
         EXPECT_EQ(2013, std::get<ModelYear>(info.manufactureOrModelDate).year);
+        EXPECT_EQ(DeviceProductInfo::NO_RELATIVE_ADDRESS, info.relativeAddress);
     }
 }
 
diff --git a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
index ea3d744..ce5f35c 100644
--- a/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayTransactionTest.cpp
@@ -55,6 +55,8 @@
 namespace android {
 namespace {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 using testing::_;
 using testing::AnyNumber;
 using testing::DoAll;
@@ -65,13 +67,18 @@
 using testing::SetArgPointee;
 using testing::StrictMock;
 
-using android::Hwc2::ColorMode;
-using android::Hwc2::Error;
-using android::Hwc2::Hdr;
-using android::Hwc2::IComposer;
-using android::Hwc2::IComposerClient;
-using android::Hwc2::PerFrameMetadataKey;
-using android::Hwc2::RenderIntent;
+using hal::ColorMode;
+using hal::Connection;
+using hal::DisplayCapability;
+using hal::DisplayType;
+using hal::Error;
+using hal::Hdr;
+using hal::HWDisplayId;
+using hal::IComposer;
+using hal::IComposerClient;
+using hal::PerFrameMetadataKey;
+using hal::PowerMode;
+using hal::RenderIntent;
 
 using FakeDisplayDeviceInjector = TestableSurfaceFlinger::FakeDisplayDeviceInjector;
 using FakeHwcDisplayInjector = TestableSurfaceFlinger::FakeHwcDisplayInjector;
@@ -82,7 +89,7 @@
 constexpr int32_t DEFAULT_DPI = 320;
 constexpr int DEFAULT_VIRTUAL_DISPLAY_SURFACE_FORMAT = HAL_PIXEL_FORMAT_RGB_565;
 
-constexpr int HWC_POWER_MODE_LEET = 1337; // An out of range power mode value
+constexpr int POWER_MODE_LEET = 1337; // An out of range power mode value
 
 /* ------------------------------------------------------------------------
  * Boolean avoidance
@@ -120,7 +127,7 @@
     // --------------------------------------------------------------------
     // Postcondition helpers
 
-    bool hasPhysicalHwcDisplay(hwc2_display_t hwcDisplayId);
+    bool hasPhysicalHwcDisplay(HWDisplayId hwcDisplayId);
     bool hasTransactionFlagSet(int flag);
     bool hasDisplayDevice(sp<IBinder> displayToken);
     sp<DisplayDevice> getDisplayDevice(sp<IBinder> displayToken);
@@ -246,7 +253,7 @@
     constexpr DisplayId DEFAULT_DISPLAY_ID = DisplayId{777};
     constexpr int DEFAULT_DISPLAY_WIDTH = 1080;
     constexpr int DEFAULT_DISPLAY_HEIGHT = 1920;
-    constexpr hwc2_display_t DEFAULT_DISPLAY_HWC_DISPLAY_ID = 0;
+    constexpr HWDisplayId DEFAULT_DISPLAY_HWC_DISPLAY_ID = 0;
 
     // The DisplayDevice is required to have a framebuffer (behind the
     // ANativeWindow interface) which uses the actual hardware display
@@ -285,7 +292,7 @@
     return displayDevice;
 }
 
-bool DisplayTransactionTest::hasPhysicalHwcDisplay(hwc2_display_t hwcDisplayId) {
+bool DisplayTransactionTest::hasPhysicalHwcDisplay(HWDisplayId hwcDisplayId) {
     return mFlinger.mutableHwcPhysicalDisplayIdMap().count(hwcDisplayId) == 1;
 }
 
@@ -343,8 +350,8 @@
     static std::optional<DisplayId> get() {
         if (!PhysicalDisplay::HAS_IDENTIFICATION_DATA) {
             return getFallbackDisplayId(static_cast<bool>(PhysicalDisplay::PRIMARY)
-                                                ? HWC_DISPLAY_PRIMARY
-                                                : HWC_DISPLAY_EXTERNAL);
+                                                ? LEGACY_DISPLAY_TYPE_PRIMARY
+                                                : LEGACY_DISPLAY_TYPE_EXTERNAL);
         }
 
         const auto info =
@@ -376,19 +383,19 @@
 
 template <typename>
 struct HwcDisplayIdGetter {
-    static constexpr std::optional<hwc2_display_t> value;
+    static constexpr std::optional<HWDisplayId> value;
 };
 
-constexpr hwc2_display_t HWC_VIRTUAL_DISPLAY_HWC_DISPLAY_ID = 1010;
+constexpr HWDisplayId HWC_VIRTUAL_DISPLAY_HWC_DISPLAY_ID = 1010;
 
 template <DisplayId::Type displayId>
 struct HwcDisplayIdGetter<VirtualDisplayId<displayId>> {
-    static constexpr std::optional<hwc2_display_t> value = HWC_VIRTUAL_DISPLAY_HWC_DISPLAY_ID;
+    static constexpr std::optional<HWDisplayId> value = HWC_VIRTUAL_DISPLAY_HWC_DISPLAY_ID;
 };
 
 template <typename PhysicalDisplay>
 struct HwcDisplayIdGetter<PhysicalDisplayId<PhysicalDisplay>> {
-    static constexpr std::optional<hwc2_display_t> value = PhysicalDisplay::HWC_DISPLAY_ID;
+    static constexpr std::optional<HWDisplayId> value = PhysicalDisplay::HWC_DISPLAY_ID;
 };
 
 // DisplayIdType can be:
@@ -497,21 +504,20 @@
     }
 };
 
-template <hwc2_display_t hwcDisplayId, HWC2::DisplayType hwcDisplayType, typename DisplayVariant,
+template <HWDisplayId hwcDisplayId, DisplayType hwcDisplayType, typename DisplayVariant,
           typename PhysicalDisplay = void>
 struct HwcDisplayVariant {
     // The display id supplied by the HWC
-    static constexpr hwc2_display_t HWC_DISPLAY_ID = hwcDisplayId;
+    static constexpr HWDisplayId HWC_DISPLAY_ID = hwcDisplayId;
 
     // The HWC display type
-    static constexpr HWC2::DisplayType HWC_DISPLAY_TYPE = hwcDisplayType;
+    static constexpr DisplayType HWC_DISPLAY_TYPE = hwcDisplayType;
 
     // The HWC active configuration id
     static constexpr int HWC_ACTIVE_CONFIG_ID = 2001;
-    static constexpr int INIT_POWER_MODE = HWC_POWER_MODE_NORMAL;
+    static constexpr PowerMode INIT_POWER_MODE = PowerMode::ON;
 
-    static void injectPendingHotplugEvent(DisplayTransactionTest* test,
-                                          HWC2::Connection connection) {
+    static void injectPendingHotplugEvent(DisplayTransactionTest* test, Connection connection) {
         test->mFlinger.mutablePendingHotplugEvents().emplace_back(
                 HotplugEvent{HWC_DISPLAY_ID, connection});
     }
@@ -533,11 +539,9 @@
     // Called by tests to inject a HWC display setup
     static void injectHwcDisplay(DisplayTransactionTest* test) {
         EXPECT_CALL(*test->mComposer, getDisplayCapabilities(HWC_DISPLAY_ID, _))
-                .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hwc2::DisplayCapability>({})),
+                .WillOnce(DoAll(SetArgPointee<1>(std::vector<DisplayCapability>({})),
                                 Return(Error::NONE)));
-        EXPECT_CALL(*test->mComposer,
-                    setPowerMode(HWC_DISPLAY_ID,
-                                 static_cast<Hwc2::IComposerClient::PowerMode>(INIT_POWER_MODE)))
+        EXPECT_CALL(*test->mComposer, setPowerMode(HWC_DISPLAY_ID, INIT_POWER_MODE))
                 .WillOnce(Return(Error::NONE));
         injectHwcDisplayWithNoDefaultCapabilities(test);
     }
@@ -568,10 +572,10 @@
                 : IComposerClient::DisplayConnectionType::EXTERNAL;
 
         EXPECT_CALL(*test->mComposer, getDisplayConnectionType(HWC_DISPLAY_ID, _))
-                .WillOnce(
-                        DoAll(SetArgPointee<1>(CONNECTION_TYPE), Return(Hwc2::V2_4::Error::NONE)));
+                .WillOnce(DoAll(SetArgPointee<1>(CONNECTION_TYPE), Return(hal::V2_4::Error::NONE)));
 
-        EXPECT_CALL(*test->mComposer, setClientTargetSlotCount(_)).WillOnce(Return(Error::NONE));
+        EXPECT_CALL(*test->mComposer, setClientTargetSlotCount(_))
+                .WillOnce(Return(hal::Error::NONE));
         EXPECT_CALL(*test->mComposer, getDisplayConfigs(HWC_DISPLAY_ID, _))
                 .WillOnce(DoAll(SetArgPointee<1>(std::vector<unsigned>{HWC_ACTIVE_CONFIG_ID}),
                                 Return(Error::NONE)));
@@ -626,7 +630,7 @@
 struct PhysicalDisplayVariant
       : DisplayVariant<PhysicalDisplayId<PhysicalDisplay>, width, height, critical, Async::FALSE,
                        Secure::TRUE, PhysicalDisplay::PRIMARY, GRALLOC_USAGE_PHYSICAL_DISPLAY>,
-        HwcDisplayVariant<PhysicalDisplay::HWC_DISPLAY_ID, HWC2::DisplayType::Physical,
+        HwcDisplayVariant<PhysicalDisplay::HWC_DISPLAY_ID, DisplayType::PHYSICAL,
                           DisplayVariant<PhysicalDisplayId<PhysicalDisplay>, width, height,
                                          critical, Async::FALSE, Secure::TRUE,
                                          PhysicalDisplay::PRIMARY, GRALLOC_USAGE_PHYSICAL_DISPLAY>,
@@ -637,7 +641,7 @@
     static constexpr auto CONNECTION_TYPE = DisplayConnectionType::Internal;
     static constexpr Primary PRIMARY = Primary::TRUE;
     static constexpr uint8_t PORT = 255;
-    static constexpr hwc2_display_t HWC_DISPLAY_ID = 1001;
+    static constexpr HWDisplayId HWC_DISPLAY_ID = 1001;
     static constexpr bool HAS_IDENTIFICATION_DATA = hasIdentificationData;
     static constexpr auto GET_IDENTIFICATION_DATA = getInternalEdid;
 };
@@ -647,7 +651,7 @@
     static constexpr auto CONNECTION_TYPE = DisplayConnectionType::External;
     static constexpr Primary PRIMARY = Primary::FALSE;
     static constexpr uint8_t PORT = 254;
-    static constexpr hwc2_display_t HWC_DISPLAY_ID = 1002;
+    static constexpr HWDisplayId HWC_DISPLAY_ID = 1002;
     static constexpr bool HAS_IDENTIFICATION_DATA = hasIdentificationData;
     static constexpr auto GET_IDENTIFICATION_DATA = getExternalEdid;
 };
@@ -655,7 +659,7 @@
 struct TertiaryDisplay {
     static constexpr Primary PRIMARY = Primary::FALSE;
     static constexpr uint8_t PORT = 253;
-    static constexpr hwc2_display_t HWC_DISPLAY_ID = 1003;
+    static constexpr HWDisplayId HWC_DISPLAY_ID = 1003;
     static constexpr auto GET_IDENTIFICATION_DATA = getExternalEdid;
 };
 
@@ -716,7 +720,7 @@
       : DisplayVariant<VirtualDisplayId<42>, width, height, Critical::FALSE, Async::TRUE, secure,
                        Primary::FALSE, GRALLOC_USAGE_HWC_VIRTUAL_DISPLAY>,
         HwcDisplayVariant<
-                HWC_VIRTUAL_DISPLAY_HWC_DISPLAY_ID, HWC2::DisplayType::Virtual,
+                HWC_VIRTUAL_DISPLAY_HWC_DISPLAY_ID, DisplayType::VIRTUAL,
                 DisplayVariant<VirtualDisplayId<42>, width, height, Critical::FALSE, Async::TRUE,
                                secure, Primary::FALSE, GRALLOC_USAGE_HWC_VIRTUAL_DISPLAY>> {
     using Base = DisplayVariant<VirtualDisplayId<42>, width, height, Critical::FALSE, Async::TRUE,
@@ -1046,8 +1050,8 @@
 
 TEST_F(DisplayTransactionTest, hotplugEnqueuesEventsForDisplayTransaction) {
     constexpr int currentSequenceId = 123;
-    constexpr hwc2_display_t hwcDisplayId1 = 456;
-    constexpr hwc2_display_t hwcDisplayId2 = 654;
+    constexpr HWDisplayId hwcDisplayId1 = 456;
+    constexpr HWDisplayId hwcDisplayId2 = 654;
 
     // --------------------------------------------------------------------
     // Preconditions
@@ -1070,8 +1074,8 @@
     // Invocation
 
     // Simulate two hotplug events (a connect and a disconnect)
-    mFlinger.onHotplugReceived(currentSequenceId, hwcDisplayId1, HWC2::Connection::Connected);
-    mFlinger.onHotplugReceived(currentSequenceId, hwcDisplayId2, HWC2::Connection::Disconnected);
+    mFlinger.onHotplugReceived(currentSequenceId, hwcDisplayId1, Connection::CONNECTED);
+    mFlinger.onHotplugReceived(currentSequenceId, hwcDisplayId2, Connection::DISCONNECTED);
 
     // --------------------------------------------------------------------
     // Postconditions
@@ -1083,15 +1087,15 @@
     const auto& pendingEvents = mFlinger.mutablePendingHotplugEvents();
     ASSERT_EQ(2u, pendingEvents.size());
     EXPECT_EQ(hwcDisplayId1, pendingEvents[0].hwcDisplayId);
-    EXPECT_EQ(HWC2::Connection::Connected, pendingEvents[0].connection);
+    EXPECT_EQ(Connection::CONNECTED, pendingEvents[0].connection);
     EXPECT_EQ(hwcDisplayId2, pendingEvents[1].hwcDisplayId);
-    EXPECT_EQ(HWC2::Connection::Disconnected, pendingEvents[1].connection);
+    EXPECT_EQ(Connection::DISCONNECTED, pendingEvents[1].connection);
 }
 
 TEST_F(DisplayTransactionTest, hotplugDiscardsUnexpectedEvents) {
     constexpr int currentSequenceId = 123;
     constexpr int otherSequenceId = 321;
-    constexpr hwc2_display_t displayId = 456;
+    constexpr HWDisplayId displayId = 456;
 
     // --------------------------------------------------------------------
     // Preconditions
@@ -1113,7 +1117,7 @@
     // Invocation
 
     // Call with an unexpected sequence id
-    mFlinger.onHotplugReceived(otherSequenceId, displayId, HWC2::Connection::Invalid);
+    mFlinger.onHotplugReceived(otherSequenceId, displayId, Connection::INVALID);
 
     // --------------------------------------------------------------------
     // Postconditions
@@ -1127,7 +1131,7 @@
 
 TEST_F(DisplayTransactionTest, hotplugProcessesEnqueuedEventsIfCalledOnMainThread) {
     constexpr int currentSequenceId = 123;
-    constexpr hwc2_display_t displayId1 = 456;
+    constexpr HWDisplayId displayId1 = 456;
 
     // --------------------------------------------------------------------
     // Note:
@@ -1161,7 +1165,7 @@
     // Simulate a disconnect on a display id that is not connected. This should
     // be enqueued by onHotplugReceived(), and dequeued by
     // processDisplayHotplugEventsLocked(), but then ignored as invalid.
-    mFlinger.onHotplugReceived(currentSequenceId, displayId1, HWC2::Connection::Disconnected);
+    mFlinger.onHotplugReceived(currentSequenceId, displayId1, Connection::DISCONNECTED);
 
     // --------------------------------------------------------------------
     // Postconditions
@@ -1731,7 +1735,8 @@
 
     ui::DisplayPrimaries primaries;
     populateDummyDisplayNativePrimaries(primaries);
-    EXPECT_EQ(BAD_VALUE, mFlinger.getDisplayNativePrimaries(notInternalDisplayToken, primaries));
+    EXPECT_EQ(NAME_NOT_FOUND,
+              mFlinger.getDisplayNativePrimaries(notInternalDisplayToken, primaries));
 
     // Check primaries argument wasn't modified in case of failure
     checkDummyDisplayNativePrimaries(primaries);
@@ -2009,7 +2014,7 @@
     setupCommonPreconditions<Case>();
 
     // A hotplug connect event is enqueued for a display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::CONNECTED);
 
     // --------------------------------------------------------------------
     // Call Expectations
@@ -2045,7 +2050,7 @@
     setupCommonPreconditions<Case>();
 
     // A hotplug connect event is enqueued for a display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::CONNECTED);
 
     // --------------------------------------------------------------------
     // Invocation
@@ -2067,7 +2072,7 @@
     setupCommonPreconditions<Case>();
 
     // A hotplug disconnect event is enqueued for a display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Disconnected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::DISCONNECTED);
 
     // The display is already completely set up.
     Case::Display::injectHwcDisplay(this);
@@ -2165,9 +2170,9 @@
     setupCommonPreconditions<Case>();
 
     // A hotplug connect event is enqueued for a display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::CONNECTED);
     // A hotplug disconnect event is also enqueued for the same display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Disconnected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::DISCONNECTED);
 
     // --------------------------------------------------------------------
     // Call Expectations
@@ -2213,9 +2218,9 @@
     existing.inject();
 
     // A hotplug disconnect event is enqueued for a display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Disconnected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::DISCONNECTED);
     // A hotplug connect event is also enqueued for the same display
-    Case::Display::injectPendingHotplugEvent(this, HWC2::Connection::Connected);
+    Case::Display::injectPendingHotplugEvent(this, Connection::CONNECTED);
 
     // --------------------------------------------------------------------
     // Call Expectations
@@ -3092,7 +3097,7 @@
     // processing.
     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
 
-    EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime()).WillRepeatedly(Return(0));
+    EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime(_)).WillRepeatedly(Return(0));
 
     // --------------------------------------------------------------------
     // Invocation
@@ -3120,10 +3125,10 @@
     EXPECT_EQ(0u, primaryDisplayState.width);
     EXPECT_EQ(0u, primaryDisplayState.height);
 
-    // The display should be set to HWC_POWER_MODE_NORMAL
+    // The display should be set to PowerMode::ON
     ASSERT_TRUE(hasDisplayDevice(primaryDisplay.token()));
     auto displayDevice = primaryDisplay.mutableDisplayDevice();
-    EXPECT_EQ(HWC_POWER_MODE_NORMAL, displayDevice->getPowerMode());
+    EXPECT_EQ(PowerMode::ON, displayDevice->getPowerMode());
 
     // The display refresh period should be set in the frame tracker.
     FrameStats stats;
@@ -3155,8 +3160,8 @@
 
     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
         EXPECT_CALL(*test->mComposer, getDisplayCapabilities(Display::HWC_DISPLAY_ID, _))
-                .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hwc2::DisplayCapability>(
-                                        {Hwc2::DisplayCapability::DOZE})),
+                .WillOnce(DoAll(SetArgPointee<1>(
+                                        std::vector<DisplayCapability>({DisplayCapability::DOZE})),
                                 Return(Error::NONE)));
     }
 };
@@ -3172,7 +3177,7 @@
 
     static void setupComposerCallExpectations(DisplayTransactionTest* test) {
         EXPECT_CALL(*test->mComposer, getDisplayCapabilities(Display::HWC_DISPLAY_ID, _))
-                .WillOnce(DoAll(SetArgPointee<1>(std::vector<Hwc2::DisplayCapability>({})),
+                .WillOnce(DoAll(SetArgPointee<1>(std::vector<DisplayCapability>({})),
                                 Return(Error::NONE)));
     }
 };
@@ -3246,7 +3251,7 @@
 // selected subset which provides complete test coverage of the implementation.
 // --------------------------------------------------------------------
 
-template <int initialPowerMode, int targetPowerMode>
+template <PowerMode initialPowerMode, PowerMode targetPowerMode>
 struct TransitionVariantCommon {
     static constexpr auto INITIAL_POWER_MODE = initialPowerMode;
     static constexpr auto TARGET_POWER_MODE = targetPowerMode;
@@ -3254,8 +3259,7 @@
     static void verifyPostconditions(DisplayTransactionTest*) {}
 };
 
-struct TransitionOffToOnVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_OFF, HWC_POWER_MODE_NORMAL> {
+struct TransitionOffToOnVariant : public TransitionVariantCommon<PowerMode::OFF, PowerMode::ON> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::setupComposerCallExpectations(test, IComposerClient::PowerMode::ON);
@@ -3271,7 +3275,7 @@
 };
 
 struct TransitionOffToDozeSuspendVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_OFF, HWC_POWER_MODE_DOZE_SUSPEND> {
+      : public TransitionVariantCommon<PowerMode::OFF, PowerMode::DOZE_SUSPEND> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::setupComposerCallExpectations(test, Case::Doze::ACTUAL_POWER_MODE_FOR_DOZE_SUSPEND);
@@ -3285,8 +3289,7 @@
     }
 };
 
-struct TransitionOnToOffVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_OFF> {
+struct TransitionOnToOffVariant : public TransitionVariantCommon<PowerMode::ON, PowerMode::OFF> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupReleaseAndDisableVsyncCallExpectations(test);
@@ -3300,7 +3303,7 @@
 };
 
 struct TransitionDozeSuspendToOffVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_DOZE_SUSPEND, HWC_POWER_MODE_OFF> {
+      : public TransitionVariantCommon<PowerMode::DOZE_SUSPEND, PowerMode::OFF> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
@@ -3312,8 +3315,7 @@
     }
 };
 
-struct TransitionOnToDozeVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_DOZE> {
+struct TransitionOnToDozeVariant : public TransitionVariantCommon<PowerMode::ON, PowerMode::DOZE> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
@@ -3322,7 +3324,7 @@
 };
 
 struct TransitionDozeSuspendToDozeVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_DOZE_SUSPEND, HWC_POWER_MODE_DOZE> {
+      : public TransitionVariantCommon<PowerMode::DOZE_SUSPEND, PowerMode::DOZE> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupAcquireAndEnableVsyncCallExpectations(test);
@@ -3331,8 +3333,7 @@
     }
 };
 
-struct TransitionDozeToOnVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_DOZE, HWC_POWER_MODE_NORMAL> {
+struct TransitionDozeToOnVariant : public TransitionVariantCommon<PowerMode::DOZE, PowerMode::ON> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
@@ -3341,7 +3342,7 @@
 };
 
 struct TransitionDozeSuspendToOnVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_DOZE_SUSPEND, HWC_POWER_MODE_NORMAL> {
+      : public TransitionVariantCommon<PowerMode::DOZE_SUSPEND, PowerMode::ON> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupAcquireAndEnableVsyncCallExpectations(test);
@@ -3351,7 +3352,7 @@
 };
 
 struct TransitionOnToDozeSuspendVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_DOZE_SUSPEND> {
+      : public TransitionVariantCommon<PowerMode::ON, PowerMode::DOZE_SUSPEND> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupReleaseAndDisableVsyncCallExpectations(test);
@@ -3361,7 +3362,7 @@
 };
 
 struct TransitionOnToUnknownVariant
-      : public TransitionVariantCommon<HWC_POWER_MODE_NORMAL, HWC_POWER_MODE_LEET> {
+      : public TransitionVariantCommon<PowerMode::ON, static_cast<PowerMode>(POWER_MODE_LEET)> {
     template <typename Case>
     static void setupCallExpectations(DisplayTransactionTest* test) {
         Case::EventThread::setupEventAndEventControlThreadNoCallExpectations(test);
@@ -3386,7 +3387,7 @@
     using DispSync = DispSyncVariant;
     using Transition = TransitionVariant;
 
-    static auto injectDisplayWithInitialPowerMode(DisplayTransactionTest* test, int mode) {
+    static auto injectDisplayWithInitialPowerMode(DisplayTransactionTest* test, PowerMode mode) {
         Display::injectHwcDisplayWithNoDefaultCapabilities(test);
         auto display = Display::makeFakeExistingDisplayInjector(test);
         display.inject();
@@ -3402,13 +3403,14 @@
         EXPECT_CALL(*test->mMessageQueue, invalidate()).Times(1);
     }
 
-    static void setupSurfaceInterceptorCallExpectations(DisplayTransactionTest* test, int mode) {
+    static void setupSurfaceInterceptorCallExpectations(DisplayTransactionTest* test,
+                                                        PowerMode mode) {
         EXPECT_CALL(*test->mSurfaceInterceptor, isEnabled()).WillOnce(Return(true));
-        EXPECT_CALL(*test->mSurfaceInterceptor, savePowerModeUpdate(_, mode)).Times(1);
+        EXPECT_CALL(*test->mSurfaceInterceptor, savePowerModeUpdate(_, static_cast<int32_t>(mode)))
+                .Times(1);
     }
 
-    static void setupComposerCallExpectations(DisplayTransactionTest* test,
-                                              IComposerClient::PowerMode mode) {
+    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, _))
                 .WillRepeatedly(DoAll(SetArgPointee<1>(Display::HWC_ACTIVE_CONFIG_ID),
@@ -3450,14 +3452,14 @@
     void transitionDisplayCommon();
 };
 
-template <int PowerMode>
+template <PowerMode PowerMode>
 struct PowerModeInitialVSyncEnabled : public std::false_type {};
 
 template <>
-struct PowerModeInitialVSyncEnabled<HWC_POWER_MODE_NORMAL> : public std::true_type {};
+struct PowerModeInitialVSyncEnabled<PowerMode::ON> : public std::true_type {};
 
 template <>
-struct PowerModeInitialVSyncEnabled<HWC_POWER_MODE_DOZE> : public std::true_type {};
+struct PowerModeInitialVSyncEnabled<PowerMode::DOZE> : public std::true_type {};
 
 template <typename Case>
 void SetPowerModeInternalTest::transitionDisplayCommon() {
@@ -3500,18 +3502,18 @@
     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
     display.inject();
 
-    // The display is already set to HWC_POWER_MODE_NORMAL
-    display.mutableDisplayDevice()->setPowerMode(HWC_POWER_MODE_NORMAL);
+    // The display is already set to PowerMode::ON
+    display.mutableDisplayDevice()->setPowerMode(PowerMode::ON);
 
     // --------------------------------------------------------------------
     // Invocation
 
-    mFlinger.setPowerModeInternal(display.mutableDisplayDevice(), HWC_POWER_MODE_NORMAL);
+    mFlinger.setPowerModeInternal(display.mutableDisplayDevice(), PowerMode::ON);
 
     // --------------------------------------------------------------------
     // Postconditions
 
-    EXPECT_EQ(HWC_POWER_MODE_NORMAL, display.mutableDisplayDevice()->getPowerMode());
+    EXPECT_EQ(PowerMode::ON, display.mutableDisplayDevice()->getPowerMode());
 }
 
 TEST_F(SetPowerModeInternalTest, setPowerModeInternalDoesNothingIfVirtualDisplay) {
@@ -3530,18 +3532,18 @@
     auto display = Case::Display::makeFakeExistingDisplayInjector(this);
     display.inject();
 
-    // The display is set to HWC_POWER_MODE_NORMAL
-    getDisplayDevice(display.token())->setPowerMode(HWC_POWER_MODE_NORMAL);
+    // The display is set to PowerMode::ON
+    getDisplayDevice(display.token())->setPowerMode(PowerMode::ON);
 
     // --------------------------------------------------------------------
     // Invocation
 
-    mFlinger.setPowerModeInternal(display.mutableDisplayDevice(), HWC_POWER_MODE_OFF);
+    mFlinger.setPowerModeInternal(display.mutableDisplayDevice(), PowerMode::OFF);
 
     // --------------------------------------------------------------------
     // Postconditions
 
-    EXPECT_EQ(HWC_POWER_MODE_NORMAL, display.mutableDisplayDevice()->getPowerMode());
+    EXPECT_EQ(PowerMode::ON, display.mutableDisplayDevice()->getPowerMode());
 }
 
 TEST_F(SetPowerModeInternalTest, transitionsDisplayFromOffToOnPrimaryDisplay) {
diff --git a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
index ba5c0c2..b90b566 100644
--- a/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
+++ b/services/surfaceflinger/tests/unittests/EventThreadTest.cpp
@@ -258,14 +258,14 @@
 
     // Use the received callback to signal a first vsync event.
     // The interceptor should receive the event, as well as the connection.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection(123, 1u);
 
     // Use the received callback to signal a second vsync event.
     // The interceptor should receive the event, but the the connection should
     // not as it was only interested in the first.
-    mCallback->onVSyncEvent(456);
+    mCallback->onVSyncEvent(456, 123);
     expectInterceptCallReceived(456);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
@@ -299,7 +299,7 @@
     // Send a vsync event. EventThread should then make a call to the
     // interceptor, and the second connection. The first connection should not
     // get the event.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     EXPECT_FALSE(firstConnectionEventRecorder.waitForUnexpectedCall().has_value());
     expectVsyncEventReceivedByConnection("secondConnection", secondConnectionEventRecorder, 123,
@@ -314,17 +314,17 @@
 
     // Send a vsync event. EventThread should then make a call to the
     // interceptor, and the connection.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection(123, 1u);
 
     // A second event should go to the same places.
-    mCallback->onVSyncEvent(456);
+    mCallback->onVSyncEvent(456, 123);
     expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection(456, 2u);
 
     // A third event should go to the same places.
-    mCallback->onVSyncEvent(789);
+    mCallback->onVSyncEvent(789, 777);
     expectInterceptCallReceived(789);
     expectVsyncEventReceivedByConnection(789, 3u);
 }
@@ -336,22 +336,22 @@
     expectVSyncSetEnabledCallReceived(true);
 
     // The first event will be seen by the interceptor, and not the connection.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
     // The second event will be seen by the interceptor and the connection.
-    mCallback->onVSyncEvent(456);
+    mCallback->onVSyncEvent(456, 123);
     expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection(456, 2u);
 
     // The third event will be seen by the interceptor, and not the connection.
-    mCallback->onVSyncEvent(789);
+    mCallback->onVSyncEvent(789, 777);
     expectInterceptCallReceived(789);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
     // The fourth event will be seen by the interceptor and the connection.
-    mCallback->onVSyncEvent(101112);
+    mCallback->onVSyncEvent(101112, 7847);
     expectInterceptCallReceived(101112);
     expectVsyncEventReceivedByConnection(101112, 4u);
 }
@@ -366,7 +366,7 @@
     mConnection = nullptr;
 
     // The first event will be seen by the interceptor, and not the connection.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     EXPECT_FALSE(mConnectionEventCallRecorder.waitForUnexpectedCall().has_value());
 
@@ -386,13 +386,13 @@
 
     // The first event will be seen by the interceptor, and by the connection,
     // which then returns an error.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
 
     // A subsequent event will be seen by the interceptor and not by the
     // connection.
-    mCallback->onVSyncEvent(456);
+    mCallback->onVSyncEvent(456, 123);
     expectInterceptCallReceived(456);
     EXPECT_FALSE(errorConnectionEventRecorder.waitForUnexpectedCall().has_value());
 
@@ -420,7 +420,7 @@
 
     // The first event will be seen by the interceptor, and by the connection,
     // which then returns an error.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     expectInterceptCallReceived(123);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 123, 1u);
     expectVsyncEventReceivedByConnection("successConnection", secondConnectionEventRecorder, 123,
@@ -440,13 +440,13 @@
 
     // The first event will be seen by the interceptor, and by the connection,
     // which then returns an non-fatal error.
-    mCallback->onVSyncEvent(123);
+    mCallback->onVSyncEvent(123, 456);
     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.
-    mCallback->onVSyncEvent(456);
+    mCallback->onVSyncEvent(456, 123);
     expectInterceptCallReceived(456);
     expectVsyncEventReceivedByConnection("errorConnection", errorConnectionEventRecorder, 456, 2u);
 
diff --git a/services/surfaceflinger/tests/unittests/HWComposerTest.cpp b/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
index c6fe205..91b304c 100644
--- a/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
@@ -36,6 +36,8 @@
 namespace android {
 namespace {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 using ::testing::_;
 using ::testing::DoAll;
 using ::testing::ElementsAreArray;
@@ -47,15 +49,15 @@
     ~MockHWC2ComposerCallback() = default;
 
     MOCK_METHOD3(onHotplugReceived,
-                 void(int32_t sequenceId, hwc2_display_t display, HWC2::Connection connection));
-    MOCK_METHOD2(onRefreshReceived, void(int32_t sequenceId, hwc2_display_t display));
+                 void(int32_t sequenceId, hal::HWDisplayId display, hal::Connection connection));
+    MOCK_METHOD2(onRefreshReceived, void(int32_t sequenceId, hal::HWDisplayId display));
     MOCK_METHOD4(onVsyncReceived,
-                 void(int32_t sequenceId, hwc2_display_t display, int64_t timestamp,
-                      std::optional<hwc2_vsync_period_t> vsyncPeriod));
+                 void(int32_t sequenceId, hal::HWDisplayId display, int64_t timestamp,
+                      std::optional<hal::VsyncPeriodNanos> vsyncPeriod));
     MOCK_METHOD3(onVsyncPeriodTimingChangedReceived,
-                 void(int32_t sequenceId, hwc2_display_t display,
-                      const hwc_vsync_period_change_timeline_t& updatedTimeline));
-    MOCK_METHOD2(onSeamlessPossible, void(int32_t sequenceId, hwc2_display_t display));
+                 void(int32_t sequenceId, hal::HWDisplayId display,
+                      const hal::VsyncPeriodChangeTimeline& updatedTimeline));
+    MOCK_METHOD2(onSeamlessPossible, void(int32_t sequenceId, hal::HWDisplayId display));
 };
 
 struct HWComposerTest : public testing::Test {
@@ -73,14 +75,12 @@
     constexpr bool kMetadata2Mandatory = true;
 
     EXPECT_CALL(*mHal, getMaxVirtualDisplayCount()).WillOnce(Return(0));
-    EXPECT_CALL(*mHal, getCapabilities())
-            .WillOnce(Return(std::vector<Hwc2::IComposer::Capability>{}));
+    EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<hal::Capability>{}));
     EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
-            .WillOnce(DoAll(SetArgPointee<0>(
-                                    std::vector<Hwc2::IComposerClient::LayerGenericMetadataKey>{
-                                            {kMetadata1Name, kMetadata1Mandatory},
-                                            {kMetadata2Name, kMetadata2Mandatory},
-                                    }),
+            .WillOnce(DoAll(SetArgPointee<0>(std::vector<hal::LayerGenericMetadataKey>{
+                                    {kMetadata1Name, kMetadata1Mandatory},
+                                    {kMetadata2Name, kMetadata2Mandatory},
+                            }),
                             Return(hardware::graphics::composer::V2_4::Error::NONE)));
     EXPECT_CALL(*mHal, registerCallback(_));
     EXPECT_CALL(*mHal, isVsyncPeriodSwitchSupported()).WillOnce(Return(false));
@@ -98,8 +98,7 @@
 
 TEST_F(HWComposerSetConfigurationTest, handlesUnsupportedCallToGetLayerGenericMetadataKeys) {
     EXPECT_CALL(*mHal, getMaxVirtualDisplayCount()).WillOnce(Return(0));
-    EXPECT_CALL(*mHal, getCapabilities())
-            .WillOnce(Return(std::vector<Hwc2::IComposer::Capability>{}));
+    EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<hal::Capability>{}));
     EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
             .WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
     EXPECT_CALL(*mHal, registerCallback(_));
@@ -113,16 +112,16 @@
 }
 
 struct HWComposerLayerTest : public testing::Test {
-    static constexpr hwc2_display_t kDisplayId = static_cast<hwc2_display_t>(1001);
-    static constexpr hwc2_layer_t kLayerId = static_cast<hwc2_layer_t>(1002);
+    static constexpr hal::HWDisplayId kDisplayId = static_cast<hal::HWDisplayId>(1001);
+    static constexpr hal::HWLayerId kLayerId = static_cast<hal::HWLayerId>(1002);
 
-    HWComposerLayerTest(const std::unordered_set<HWC2::Capability>& capabilities)
+    HWComposerLayerTest(const std::unordered_set<hal::Capability>& capabilities)
           : mCapabilies(capabilities) {}
 
     ~HWComposerLayerTest() override { EXPECT_CALL(*mHal, destroyLayer(kDisplayId, kLayerId)); }
 
     std::unique_ptr<Hwc2::mock::Composer> mHal{new StrictMock<Hwc2::mock::Composer>()};
-    const std::unordered_set<HWC2::Capability> mCapabilies;
+    const std::unordered_set<hal::Capability> mCapabilies;
     HWC2::impl::Layer mLayer{*mHal, mCapabilies, kDisplayId, kLayerId};
 };
 
@@ -159,7 +158,7 @@
     auto result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata1Name,
                                                  kLayerGenericMetadata1Mandatory,
                                                  kLayerGenericMetadata1Value);
-    EXPECT_EQ(HWC2::Error::None, result);
+    EXPECT_EQ(hal::Error::NONE, result);
 
     EXPECT_CALL(*mHal,
                 setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata2Name,
@@ -169,7 +168,7 @@
     result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata2Name,
                                             kLayerGenericMetadata2Mandatory,
                                             kLayerGenericMetadata2Value);
-    EXPECT_EQ(HWC2::Error::Unsupported, result);
+    EXPECT_EQ(hal::Error::UNSUPPORTED, result);
 }
 
 } // namespace
diff --git a/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp b/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp
index 71e37a8..6fca673 100644
--- a/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerHistoryTestV2.cpp
@@ -270,12 +270,12 @@
     EXPECT_EQ(1, activeLayerCount());
     EXPECT_EQ(1, frequentLayerCount(time));
 
-    // layer became inactive
+    // layer became inactive, but the vote stays
     setLayerInfoVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
     time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_TRUE(history().summarize(time).empty());
-    // TODO: activeLayerCount() should be 0 but it is 1 since getFrameRateForLayerTree() returns a
-    // value > 0
+    ASSERT_EQ(1, history().summarize(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitDefault, history().summarize(time)[0].vote);
+    EXPECT_FLOAT_EQ(73.4f, history().summarize(time)[0].desiredRefreshRate);
     EXPECT_EQ(1, activeLayerCount());
     EXPECT_EQ(0, frequentLayerCount(time));
 }
@@ -303,12 +303,13 @@
     EXPECT_EQ(1, activeLayerCount());
     EXPECT_EQ(1, frequentLayerCount(time));
 
-    // layer became inactive
+    // layer became inactive, but the vote stays
     setLayerInfoVote(layer.get(), LayerHistory::LayerVoteType::Heuristic);
     time += MAX_ACTIVE_LAYER_PERIOD_NS.count();
-    ASSERT_TRUE(history().summarize(time).empty());
-    // TODO: activeLayerCount() should be 0 but it is 1 since getFrameRateForLayerTree() returns a
-    // value > 0
+    ASSERT_EQ(1, history().summarize(time).size());
+    EXPECT_EQ(LayerHistory::LayerVoteType::ExplicitExactOrMultiple,
+              history().summarize(time)[0].vote);
+    EXPECT_FLOAT_EQ(73.4f, history().summarize(time)[0].desiredRefreshRate);
     EXPECT_EQ(1, activeLayerCount());
     EXPECT_EQ(0, frequentLayerCount(time));
 }
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
index 1b8f11b..2ceb89c 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
@@ -32,6 +32,8 @@
 namespace android {
 namespace scheduler {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 using RefreshRate = RefreshRateConfigs::RefreshRate;
 using LayerVoteType = RefreshRateConfigs::LayerVoteType;
 using LayerRequirement = RefreshRateConfigs::LayerRequirement;
@@ -142,7 +144,7 @@
 std::shared_ptr<const HWC2::Display::Config> RefreshRateConfigsTest::createConfig(
         HwcConfigIndexType configId, int32_t configGroup, int64_t vsyncPeriod, int32_t hight,
         int32_t width) {
-    return HWC2::Display::Config::Builder(mDisplay, hwc2_config_t(configId.value()))
+    return HWC2::Display::Config::Builder(mDisplay, hal::HWConfigId(configId.value()))
             .setVsyncPeriod(int32_t(vsyncPeriod))
             .setConfigGroup(configGroup)
             .setHeight(hight)
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateSelectionTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateSelectionTest.cpp
index 18b1063..43b8e01 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateSelectionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateSelectionTest.cpp
@@ -142,10 +142,10 @@
 
     auto primaryDispSync = std::make_unique<mock::DispSync>();
 
-    EXPECT_CALL(*primaryDispSync, computeNextRefresh(0)).WillRepeatedly(Return(0));
+    EXPECT_CALL(*primaryDispSync, computeNextRefresh(0, _)).WillRepeatedly(Return(0));
     EXPECT_CALL(*primaryDispSync, getPeriod())
             .WillRepeatedly(Return(FakeHwcDisplayInjector::DEFAULT_REFRESH_RATE));
-    EXPECT_CALL(*primaryDispSync, expectedPresentTime()).WillRepeatedly(Return(0));
+    EXPECT_CALL(*primaryDispSync, expectedPresentTime(_)).WillRepeatedly(Return(0));
     mFlinger.setupScheduler(std::move(primaryDispSync),
                             std::make_unique<mock::EventControlThread>(), std::move(eventThread),
                             std::move(sfEventThread));
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp
index 038e6e6..de66f8f 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateStatsTest.cpp
@@ -30,6 +30,7 @@
 #include "mock/MockTimeStats.h"
 
 using namespace std::chrono_literals;
+using android::hardware::graphics::composer::hal::PowerMode;
 using testing::_;
 using testing::AtLeast;
 
@@ -50,10 +51,9 @@
     void init(const std::vector<std::shared_ptr<const HWC2::Display::Config>>& configs) {
         mRefreshRateConfigs =
                 std::make_unique<RefreshRateConfigs>(configs, /*currentConfig=*/CONFIG_ID_0);
-        mRefreshRateStats =
-                std::make_unique<RefreshRateStats>(*mRefreshRateConfigs, mTimeStats,
-                                                   /*currentConfigId=*/CONFIG_ID_0,
-                                                   /*currentPowerMode=*/HWC_POWER_MODE_OFF);
+        mRefreshRateStats = std::make_unique<RefreshRateStats>(*mRefreshRateConfigs, mTimeStats,
+                                                               /*currentConfigId=*/CONFIG_ID_0,
+                                                               /*currentPowerMode=*/PowerMode::OFF);
     }
 
     Hwc2::mock::Display mDisplay;
@@ -80,7 +80,7 @@
 
 std::shared_ptr<const HWC2::Display::Config> RefreshRateStatsTest::createConfig(
         HwcConfigIndexType configId, int32_t configGroup, int64_t vsyncPeriod) {
-    return HWC2::Display::Config::Builder(mDisplay, hwc2_config_t(configId.value()))
+    return HWC2::Display::Config::Builder(mDisplay, configId.value())
             .setVsyncPeriod(int32_t(vsyncPeriod))
             .setConfigGroup(configGroup)
             .build();
@@ -111,7 +111,7 @@
     EXPECT_EQ(0u, times.count("90fps"));
 
     mRefreshRateStats->setConfigMode(CONFIG_ID_0);
-    mRefreshRateStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mRefreshRateStats->setPowerMode(PowerMode::ON);
     screenOff = mRefreshRateStats->getTotalTimes()["ScreenOff"];
     std::this_thread::sleep_for(std::chrono::milliseconds(2));
     times = mRefreshRateStats->getTotalTimes();
@@ -119,7 +119,7 @@
     ASSERT_EQ(1u, times.count("90fps"));
     EXPECT_LT(0, times["90fps"]);
 
-    mRefreshRateStats->setPowerMode(HWC_POWER_MODE_DOZE);
+    mRefreshRateStats->setPowerMode(PowerMode::DOZE);
     int ninety = mRefreshRateStats->getTotalTimes()["90fps"];
     std::this_thread::sleep_for(std::chrono::milliseconds(2));
     times = mRefreshRateStats->getTotalTimes();
@@ -130,7 +130,7 @@
     screenOff = mRefreshRateStats->getTotalTimes()["ScreenOff"];
     std::this_thread::sleep_for(std::chrono::milliseconds(2));
     times = mRefreshRateStats->getTotalTimes();
-    // Because the power mode is not HWC_POWER_MODE_NORMAL, switching the config
+    // Because the power mode is not PowerMode::ON, switching the config
     // does not update refresh rates that come from the config.
     EXPECT_LT(screenOff, times["ScreenOff"]);
     EXPECT_EQ(ninety, times["90fps"]);
@@ -158,7 +158,7 @@
     EXPECT_LT(screenOff, times["ScreenOff"]);
 
     mRefreshRateStats->setConfigMode(CONFIG_ID_0);
-    mRefreshRateStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mRefreshRateStats->setPowerMode(PowerMode::ON);
     screenOff = mRefreshRateStats->getTotalTimes()["ScreenOff"];
     std::this_thread::sleep_for(std::chrono::milliseconds(2));
     times = mRefreshRateStats->getTotalTimes();
@@ -192,9 +192,9 @@
     EXPECT_EQ(ninety, times["90fps"]);
     EXPECT_LT(sixty, times["60fps"]);
 
-    // Because the power mode is not HWC_POWER_MODE_NORMAL, switching the config
+    // Because the power mode is not PowerMode::ON, switching the config
     // does not update refresh rates that come from the config.
-    mRefreshRateStats->setPowerMode(HWC_POWER_MODE_DOZE);
+    mRefreshRateStats->setPowerMode(PowerMode::DOZE);
     mRefreshRateStats->setConfigMode(CONFIG_ID_0);
     sixty = mRefreshRateStats->getTotalTimes()["60fps"];
     std::this_thread::sleep_for(std::chrono::milliseconds(2));
diff --git a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
index b069085..0d6c799 100644
--- a/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
+++ b/services/surfaceflinger/tests/unittests/SetFrameRateTest.cpp
@@ -178,10 +178,10 @@
 
     auto primaryDispSync = std::make_unique<mock::DispSync>();
 
-    EXPECT_CALL(*primaryDispSync, computeNextRefresh(0)).WillRepeatedly(Return(0));
+    EXPECT_CALL(*primaryDispSync, computeNextRefresh(0, _)).WillRepeatedly(Return(0));
     EXPECT_CALL(*primaryDispSync, getPeriod())
             .WillRepeatedly(Return(FakeHwcDisplayInjector::DEFAULT_REFRESH_RATE));
-    EXPECT_CALL(*primaryDispSync, expectedPresentTime()).WillRepeatedly(Return(0));
+    EXPECT_CALL(*primaryDispSync, expectedPresentTime(_)).WillRepeatedly(Return(0));
     mFlinger.setupScheduler(std::move(primaryDispSync),
                             std::make_unique<mock::EventControlThread>(), std::move(eventThread),
                             std::move(sfEventThread));
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 6995ee0..add3327 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -57,6 +57,8 @@
 
 } // namespace Hwc2
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 namespace surfaceflinger::test {
 
 class Factory final : public surfaceflinger::Factory {
@@ -210,7 +212,7 @@
         mFlinger->mRefreshRateStats = std::make_unique<
                 scheduler::RefreshRateStats>(*mFlinger->mRefreshRateConfigs, *mFlinger->mTimeStats,
                                              /*currentConfig=*/HwcConfigIndexType(0),
-                                             /*powerMode=*/HWC_POWER_MODE_OFF);
+                                             /*powerMode=*/hal::PowerMode::OFF);
         mFlinger->mPhaseConfiguration =
                 mFactory.createPhaseConfiguration(*mFlinger->mRefreshRateConfigs);
 
@@ -257,12 +259,12 @@
         layer->editCompositionState()->sidebandStream = sidebandStream;
     }
 
-    void setLayerCompositionType(sp<Layer> layer, HWC2::Composition type) {
+    void setLayerCompositionType(sp<Layer> layer, hal::Composition type) {
         auto outputLayer = layer->findOutputLayerForDisplay(mFlinger->getDefaultDisplayDevice());
         LOG_ALWAYS_FATAL_IF(!outputLayer);
         auto& state = outputLayer->editState();
         LOG_ALWAYS_FATAL_IF(!outputLayer->getState().hwc);
-        (*state.hwc).hwcCompositionType = static_cast<Hwc2::IComposerClient::Composition>(type);
+        (*state.hwc).hwcCompositionType = type;
     };
 
     void setLayerPotentialCursor(sp<Layer> layer, bool potentialCursor) {
@@ -298,8 +300,8 @@
         return mFlinger->handleTransactionLocked(transactionFlags);
     }
 
-    auto onHotplugReceived(int32_t sequenceId, hwc2_display_t display,
-                           HWC2::Connection connection) {
+    auto onHotplugReceived(int32_t sequenceId, hal::HWDisplayId display,
+                           hal::Connection connection) {
         return mFlinger->onHotplugReceived(sequenceId, display, connection);
     }
 
@@ -315,19 +317,20 @@
 
     // Allow reading display state without locking, as if called on the SF main thread.
     auto setPowerModeInternal(const sp<DisplayDevice>& display,
-                              int mode) NO_THREAD_SAFETY_ANALYSIS {
+                              hal::PowerMode mode) NO_THREAD_SAFETY_ANALYSIS {
         return mFlinger->setPowerModeInternal(display, mode);
     }
 
-    auto onMessageReceived(int32_t what) { return mFlinger->onMessageReceived(what); }
+    auto onMessageReceived(int32_t what) { return mFlinger->onMessageReceived(what, systemTime()); }
 
-    auto captureScreenImplLocked(
-            const RenderArea& renderArea, SurfaceFlinger::TraverseLayersFunction traverseLayers,
-            ANativeWindowBuffer* buffer, bool useIdentityTransform, bool forSystem, int* outSyncFd) {
+    auto captureScreenImplLocked(const RenderArea& renderArea,
+                                 SurfaceFlinger::TraverseLayersFunction traverseLayers,
+                                 ANativeWindowBuffer* buffer, bool useIdentityTransform,
+                                 bool forSystem, int* outSyncFd, bool regionSampling) {
         bool ignored;
         return mFlinger->captureScreenImplLocked(renderArea, traverseLayers, buffer,
                                                  useIdentityTransform, forSystem, outSyncFd,
-                                                 ignored);
+                                                 regionSampling, ignored);
     }
 
     auto traverseLayersInDisplay(const sp<const DisplayDevice>& display,
@@ -402,7 +405,6 @@
     auto& mutableUseFrameRateApi() { return mFlinger->useFrameRateApi; }
 
     auto fromHandle(const sp<IBinder>& handle) {
-        Mutex::Autolock _l(mFlinger->mStateLock);
         return mFlinger->fromHandle(handle);
     }
 
@@ -428,12 +430,12 @@
      */
     struct HWC2Display : public HWC2::impl::Display {
         HWC2Display(Hwc2::Composer& composer,
-                    const std::unordered_set<HWC2::Capability>& capabilities, hwc2_display_t id,
-                    HWC2::DisplayType type)
+                    const std::unordered_set<hal::Capability>& capabilities, hal::HWDisplayId id,
+                    hal::DisplayType type)
               : HWC2::impl::Display(composer, capabilities, id, type) {}
         ~HWC2Display() {
             // Prevents a call to disable vsyncs.
-            mType = HWC2::DisplayType::Invalid;
+            mType = hal::DisplayType::INVALID;
         }
 
         auto& mutableIsConnected() { return this->mIsConnected; }
@@ -443,20 +445,19 @@
 
     class FakeHwcDisplayInjector {
     public:
-        static constexpr hwc2_display_t DEFAULT_HWC_DISPLAY_ID = 1000;
+        static constexpr hal::HWDisplayId DEFAULT_HWC_DISPLAY_ID = 1000;
         static constexpr int32_t DEFAULT_WIDTH = 1920;
         static constexpr int32_t DEFAULT_HEIGHT = 1280;
         static constexpr int32_t DEFAULT_REFRESH_RATE = 16'666'666;
         static constexpr int32_t DEFAULT_CONFIG_GROUP = 7;
         static constexpr int32_t DEFAULT_DPI = 320;
-        static constexpr hwc2_config_t DEFAULT_ACTIVE_CONFIG = 0;
-        static constexpr int32_t DEFAULT_POWER_MODE = 2;
+        static constexpr hal::HWConfigId DEFAULT_ACTIVE_CONFIG = 0;
+        static constexpr hal::PowerMode DEFAULT_POWER_MODE = hal::PowerMode::ON;
 
-        FakeHwcDisplayInjector(DisplayId displayId, HWC2::DisplayType hwcDisplayType,
-                               bool isPrimary)
+        FakeHwcDisplayInjector(DisplayId displayId, hal::DisplayType hwcDisplayType, bool isPrimary)
               : mDisplayId(displayId), mHwcDisplayType(hwcDisplayType), mIsPrimary(isPrimary) {}
 
-        auto& setHwcDisplayId(hwc2_display_t displayId) {
+        auto& setHwcDisplayId(hal::HWDisplayId displayId) {
             mHwcDisplayId = displayId;
             return *this;
         }
@@ -486,23 +487,23 @@
             return *this;
         }
 
-        auto& setActiveConfig(hwc2_config_t config) {
+        auto& setActiveConfig(hal::HWConfigId config) {
             mActiveConfig = config;
             return *this;
         }
 
-        auto& setCapabilities(const std::unordered_set<HWC2::Capability>* capabilities) {
+        auto& setCapabilities(const std::unordered_set<hal::Capability>* capabilities) {
             mCapabilities = capabilities;
             return *this;
         }
 
-        auto& setPowerMode(int mode) {
+        auto& setPowerMode(hal::PowerMode mode) {
             mPowerMode = mode;
             return *this;
         }
 
         void inject(TestableSurfaceFlinger* flinger, Hwc2::Composer* composer) {
-            static const std::unordered_set<HWC2::Capability> defaultCapabilities;
+            static const std::unordered_set<hal::Capability> defaultCapabilities;
             if (mCapabilities == nullptr) mCapabilities = &defaultCapabilities;
 
             // Caution - Make sure that any values passed by reference here do
@@ -521,11 +522,11 @@
             config.setConfigGroup(mConfigGroup);
             display->mutableConfigs().emplace(static_cast<int32_t>(mActiveConfig), config.build());
             display->mutableIsConnected() = true;
-            display->setPowerMode(static_cast<HWC2::PowerMode>(mPowerMode));
+            display->setPowerMode(mPowerMode);
 
             flinger->mutableHwcDisplayData()[mDisplayId].hwcDisplay = std::move(display);
 
-            if (mHwcDisplayType == HWC2::DisplayType::Physical) {
+            if (mHwcDisplayType == hal::DisplayType::PHYSICAL) {
                 flinger->mutableHwcPhysicalDisplayIdMap().emplace(mHwcDisplayId, mDisplayId);
                 (mIsPrimary ? flinger->mutableInternalHwcDisplayId()
                             : flinger->mutableExternalHwcDisplayId()) = mHwcDisplayId;
@@ -534,19 +535,19 @@
 
     private:
         const DisplayId mDisplayId;
-        const HWC2::DisplayType mHwcDisplayType;
+        const hal::DisplayType mHwcDisplayType;
         const bool mIsPrimary;
 
-        hwc2_display_t mHwcDisplayId = DEFAULT_HWC_DISPLAY_ID;
+        hal::HWDisplayId mHwcDisplayId = DEFAULT_HWC_DISPLAY_ID;
         int32_t mWidth = DEFAULT_WIDTH;
         int32_t mHeight = DEFAULT_HEIGHT;
         int32_t mRefreshRate = DEFAULT_REFRESH_RATE;
         int32_t mDpiX = DEFAULT_DPI;
         int32_t mConfigGroup = DEFAULT_CONFIG_GROUP;
         int32_t mDpiY = DEFAULT_DPI;
-        hwc2_config_t mActiveConfig = DEFAULT_ACTIVE_CONFIG;
-        int32_t mPowerMode = DEFAULT_POWER_MODE;
-        const std::unordered_set<HWC2::Capability>* mCapabilities = nullptr;
+        hal::HWConfigId mActiveConfig = DEFAULT_ACTIVE_CONFIG;
+        hal::PowerMode mPowerMode = DEFAULT_POWER_MODE;
+        const std::unordered_set<hal::Capability>* mCapabilities = nullptr;
     };
 
     class FakeDisplayDeviceInjector {
@@ -554,7 +555,7 @@
         FakeDisplayDeviceInjector(TestableSurfaceFlinger& flinger,
                                   std::shared_ptr<compositionengine::Display> compositionDisplay,
                                   std::optional<DisplayConnectionType> connectionType,
-                                  std::optional<hwc2_display_t> hwcDisplayId, bool isPrimary)
+                                  std::optional<hal::HWDisplayId> hwcDisplayId, bool isPrimary)
               : mFlinger(flinger),
                 mCreationArgs(flinger.mFlinger.get(), mDisplayToken, compositionDisplay),
                 mHwcDisplayId(hwcDisplayId) {
@@ -597,7 +598,7 @@
             return *this;
         }
 
-        auto& setPowerMode(int mode) {
+        auto& setPowerMode(hal::PowerMode mode) {
             mCreationArgs.initialPowerMode = mode;
             return *this;
         }
@@ -647,7 +648,7 @@
         TestableSurfaceFlinger& mFlinger;
         sp<BBinder> mDisplayToken = new BBinder();
         DisplayDeviceCreationArgs mCreationArgs;
-        const std::optional<hwc2_display_t> mHwcDisplayId;
+        const std::optional<hal::HWDisplayId> mHwcDisplayId;
     };
 
     surfaceflinger::test::Factory mFactory;
diff --git a/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp b/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp
index 1f04673..7a1c7c6 100644
--- a/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp
@@ -51,6 +51,8 @@
 using testing::StrEq;
 using testing::UnorderedElementsAre;
 
+using PowerMode = hardware::graphics::composer::V2_4::IComposerClient::PowerMode;
+
 // clang-format off
 #define FMT_PROTO          true
 #define FMT_STRING         false
@@ -377,9 +379,24 @@
     EXPECT_THAT(result, HasSubstr(expectedResult));
 }
 
+TEST_F(TimeStatsTest, canIncreaseCompositionStrategyChanges) {
+    // this stat is not in the proto so verify by checking the string dump
+    constexpr size_t COMPOSITION_STRATEGY_CHANGES = 2;
+
+    EXPECT_TRUE(inputCommand(InputCommand::ENABLE, FMT_STRING).empty());
+    for (size_t i = 0; i < COMPOSITION_STRATEGY_CHANGES; i++) {
+        ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementCompositionStrategyChanges());
+    }
+
+    const std::string result(inputCommand(InputCommand::DUMP_ALL, FMT_STRING));
+    const std::string expectedResult =
+            "compositionStrategyChanges = " + std::to_string(COMPOSITION_STRATEGY_CHANGES);
+    EXPECT_THAT(result, HasSubstr(expectedResult));
+}
+
 TEST_F(TimeStatsTest, canAverageFrameDuration) {
     EXPECT_TRUE(inputCommand(InputCommand::ENABLE, FMT_STRING).empty());
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats
             ->recordFrameDuration(std::chrono::duration_cast<std::chrono::nanoseconds>(1ms).count(),
                                   std::chrono::duration_cast<std::chrono::nanoseconds>(6ms)
@@ -408,7 +425,7 @@
                                                    .count());
 
     // Push a dummy present fence to trigger flushing the RenderEngine timings.
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(
             std::chrono::duration_cast<std::chrono::nanoseconds>(1ms).count()));
 
@@ -424,13 +441,13 @@
     ASSERT_NO_FATAL_FAILURE(
             mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(2000000)));
 
-    ASSERT_NO_FATAL_FAILURE(mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL));
+    ASSERT_NO_FATAL_FAILURE(mTimeStats->setPowerMode(PowerMode::ON));
     ASSERT_NO_FATAL_FAILURE(
             mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(3000000)));
     ASSERT_NO_FATAL_FAILURE(
             mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(5000000)));
 
-    ASSERT_NO_FATAL_FAILURE(mTimeStats->setPowerMode(HWC_POWER_MODE_OFF));
+    ASSERT_NO_FATAL_FAILURE(mTimeStats->setPowerMode(PowerMode::OFF));
     ASSERT_NO_FATAL_FAILURE(
             mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(6000000)));
     ASSERT_NO_FATAL_FAILURE(
@@ -448,12 +465,12 @@
 TEST_F(TimeStatsTest, canInsertGlobalFrameDuration) {
     EXPECT_TRUE(inputCommand(InputCommand::ENABLE, FMT_STRING).empty());
 
-    mTimeStats->setPowerMode(HWC_POWER_MODE_OFF);
+    mTimeStats->setPowerMode(PowerMode::OFF);
     mTimeStats
             ->recordFrameDuration(std::chrono::duration_cast<std::chrono::nanoseconds>(1ms).count(),
                                   std::chrono::duration_cast<std::chrono::nanoseconds>(5ms)
                                           .count());
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats
             ->recordFrameDuration(std::chrono::duration_cast<std::chrono::nanoseconds>(3ms).count(),
                                   std::chrono::duration_cast<std::chrono::nanoseconds>(6ms)
@@ -489,7 +506,7 @@
     ASSERT_EQ(0, preFlushProto.render_engine_timing_size());
 
     // Push a dummy present fence to trigger flushing the RenderEngine timings.
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(
             std::chrono::duration_cast<std::chrono::nanoseconds>(1ms).count()));
 
@@ -724,7 +741,7 @@
     ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementTotalFrames());
     ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementMissedFrames());
     ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementClientCompositionFrames());
-    ASSERT_NO_FATAL_FAILURE(mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL));
+    ASSERT_NO_FATAL_FAILURE(mTimeStats->setPowerMode(PowerMode::ON));
 
     mTimeStats
             ->recordFrameDuration(std::chrono::duration_cast<std::chrono::nanoseconds>(3ms).count(),
@@ -760,7 +777,8 @@
     EXPECT_TRUE(inputCommand(InputCommand::ENABLE, FMT_STRING).empty());
     ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementClientCompositionReusedFrames());
     ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementRefreshRateSwitches());
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    ASSERT_NO_FATAL_FAILURE(mTimeStats->incrementCompositionStrategyChanges());
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats
             ->recordFrameDuration(std::chrono::duration_cast<std::chrono::nanoseconds>(1ms).count(),
                                   std::chrono::duration_cast<std::chrono::nanoseconds>(5ms)
@@ -776,6 +794,7 @@
     const std::string result(inputCommand(InputCommand::DUMP_ALL, FMT_STRING));
     EXPECT_THAT(result, HasSubstr("clientCompositionReusedFrames = 0"));
     EXPECT_THAT(result, HasSubstr("refreshRateSwitches = 0"));
+    EXPECT_THAT(result, HasSubstr("compositionStrategyChanges = 0"));
     EXPECT_THAT(result, HasSubstr("averageFrameDuration = 0.000 ms"));
     EXPECT_THAT(result, HasSubstr("averageRenderEngineTiming = 0.000 ms"));
 }
@@ -877,7 +896,7 @@
     }
 
     mTimeStats->recordDisplayEventConnectionCount(DISPLAY_EVENT_CONNECTIONS);
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats->recordFrameDuration(1000000, 3000000);
     mTimeStats->recordRenderEngineDuration(2000000, 4000000);
     mTimeStats->recordRenderEngineDuration(2000000, std::make_shared<FenceTime>(3000000));
@@ -1057,7 +1076,7 @@
     insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 4, 5000000);
 
     // Now make sure that TimeStats flushes global stats to set the callback.
-    mTimeStats->setPowerMode(HWC_POWER_MODE_NORMAL);
+    mTimeStats->setPowerMode(PowerMode::ON);
     mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(3000000));
     mTimeStats->setPresentFenceGlobal(std::make_shared<FenceTime>(5000000));
     EXPECT_THAT(mDelegate->mAtomTags,
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index f1739e5..2a48a22 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -76,7 +76,7 @@
                         new EventThreadConnection(sfEventThread.get(), ResyncCallback(),
                                                   ISurfaceComposer::eConfigChangedSuppress)));
 
-        EXPECT_CALL(*mPrimaryDispSync, computeNextRefresh(0)).WillRepeatedly(Return(0));
+        EXPECT_CALL(*mPrimaryDispSync, computeNextRefresh(0, _)).WillRepeatedly(Return(0));
         EXPECT_CALL(*mPrimaryDispSync, getPeriod())
                 .WillRepeatedly(Return(FakeHwcDisplayInjector::DEFAULT_REFRESH_RATE));
 
@@ -126,7 +126,7 @@
         ASSERT_EQ(0, mFlinger.getTransactionQueue().size());
         // called in SurfaceFlinger::signalTransaction
         EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
-        EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime()).WillOnce(Return(systemTime()));
+        EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime(_)).WillOnce(Return(systemTime()));
         TransactionInfo transaction;
         setupSingle(transaction, flags, syncInputWindows,
                     /*desiredPresentTime*/ -1);
@@ -159,7 +159,7 @@
         // first check will see desired present time has not passed,
         // but afterwards it will look like the desired present time has passed
         nsecs_t time = systemTime();
-        EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime())
+        EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime(_))
                 .WillOnce(Return(time + nsecs_t(5 * 1e8)));
         TransactionInfo transaction;
         setupSingle(transaction, flags, syncInputWindows,
@@ -182,7 +182,7 @@
         // called in SurfaceFlinger::signalTransaction
         nsecs_t time = systemTime();
         EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
-        EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime())
+        EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime(_))
                 .WillOnce(Return(time + nsecs_t(5 * 1e8)));
         // transaction that should go on the pending thread
         TransactionInfo transactionA;
@@ -247,7 +247,7 @@
     EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
 
     // nsecs_t time = systemTime();
-    EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime())
+    EXPECT_CALL(*mPrimaryDispSync, expectedPresentTime(_))
             .WillOnce(Return(nsecs_t(5 * 1e8)))
             .WillOnce(Return(s2ns(2)));
     TransactionInfo transactionA; // transaction to go on pending queue
@@ -322,7 +322,7 @@
 TEST_F(TransactionApplicationTest, FromHandle) {
     sp<IBinder> badHandle;
     auto ret = mFlinger.fromHandle(badHandle);
-    EXPECT_EQ(nullptr, ret.get());
+    EXPECT_EQ(nullptr, ret.promote().get());
 }
 } // namespace android
 
diff --git a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
index 4f150ef..3f14d65 100644
--- a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
@@ -135,7 +135,7 @@
 
 class StubCallback : public DispSync::Callback {
 public:
-    void onDispSyncEvent(nsecs_t when) final {
+    void onDispSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) final {
         std::lock_guard<std::mutex> lk(mMutex);
         mLastCallTime = when;
     }
@@ -270,7 +270,7 @@
             .Times(1)
             .WillOnce(Return(fakeTimestamp));
 
-    EXPECT_THAT(mReactor.computeNextRefresh(0), Eq(fakeTimestamp));
+    EXPECT_THAT(mReactor.computeNextRefresh(0, mMockClock->now()), Eq(fakeTimestamp));
 }
 
 TEST_F(VSyncReactorTest, queriesTrackerForExpectedPresentTime) {
@@ -280,7 +280,7 @@
             .Times(1)
             .WillOnce(Return(fakeTimestamp));
 
-    EXPECT_THAT(mReactor.expectedPresentTime(), Eq(fakeTimestamp));
+    EXPECT_THAT(mReactor.expectedPresentTime(mMockClock->now()), Eq(fakeTimestamp));
 }
 
 TEST_F(VSyncReactorTest, queriesTrackerForNextRefreshFuture) {
@@ -292,7 +292,7 @@
     EXPECT_CALL(*mMockTracker, currentPeriod()).WillOnce(Return(fakePeriod));
     EXPECT_CALL(*mMockTracker, nextAnticipatedVSyncTimeFrom(mFakeNow + numPeriodsOut * fakePeriod))
             .WillOnce(Return(fakeTimestamp));
-    EXPECT_THAT(mReactor.computeNextRefresh(numPeriodsOut), Eq(fakeTimestamp));
+    EXPECT_THAT(mReactor.computeNextRefresh(numPeriodsOut, mMockClock->now()), Eq(fakeTimestamp));
 }
 
 TEST_F(VSyncReactorTest, getPeriod) {
@@ -544,7 +544,9 @@
     class SelfRemovingCallback : public DispSync::Callback {
     public:
         SelfRemovingCallback(VSyncReactor& vsr) : mVsr(vsr) {}
-        void onDispSyncEvent(nsecs_t when) final { mVsr.removeEventListener(this, &when); }
+        void onDispSyncEvent(nsecs_t when, nsecs_t /*expectedVSyncTimestamp*/) final {
+            mVsr.removeEventListener(this, &when);
+        }
 
     private:
         VSyncReactor& mVsr;
diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplay.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplay.h
index 3968035..67d3e1c 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplay.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockDisplay.h
@@ -20,78 +20,80 @@
 
 #include "DisplayHardware/HWC2.h"
 
-using HWC2::Error;
-using HWC2::Layer;
+using android::HWC2::Layer;
 
 namespace android {
 namespace Hwc2 {
 namespace mock {
 
+namespace hal = android::hardware::graphics::composer::hal;
+
 class Display : public HWC2::Display {
 public:
-    using Error = ::Error;
     using Layer = ::Layer;
 
     Display();
     ~Display();
 
-    MOCK_CONST_METHOD0(getId, hwc2_layer_t());
+    MOCK_CONST_METHOD0(getId, hal::HWDisplayId());
     MOCK_CONST_METHOD0(isConnected, bool());
     MOCK_METHOD1(setConnected, void(bool));
-    MOCK_CONST_METHOD0(getCapabilities, const std::unordered_set<HWC2::DisplayCapability>&());
+    MOCK_CONST_METHOD0(getCapabilities, const std::unordered_set<hal::DisplayCapability>&());
 
-    MOCK_METHOD0(acceptChanges, Error());
-    MOCK_METHOD1(createLayer, Error(Layer**));
-    MOCK_METHOD1(destroyLayer, Error(Layer*));
-    MOCK_CONST_METHOD1(getActiveConfig, Error(std::shared_ptr<const Config>*));
-    MOCK_CONST_METHOD1(getActiveConfigIndex, Error(int* outIndex));
-    MOCK_METHOD1(getChangedCompositionTypes, Error(std::unordered_map<Layer*, HWC2::Composition>*));
-    MOCK_CONST_METHOD1(getColorModes, Error(std::vector<android::ui::ColorMode>*));
+    MOCK_METHOD0(acceptChanges, hal::Error());
+    MOCK_METHOD1(createLayer, hal::Error(Layer**));
+    MOCK_METHOD1(destroyLayer, hal::Error(Layer*));
+    MOCK_CONST_METHOD1(getActiveConfig, hal::Error(std::shared_ptr<const Config>*));
+    MOCK_CONST_METHOD1(getActiveConfigIndex, hal::Error(int* outIndex));
+    MOCK_METHOD1(getChangedCompositionTypes,
+                 hal::Error(std::unordered_map<Layer*, hal::Composition>*));
+    MOCK_CONST_METHOD1(getColorModes, hal::Error(std::vector<hal::ColorMode>*));
 
     MOCK_CONST_METHOD0(getSupportedPerFrameMetadata, int32_t());
     MOCK_CONST_METHOD2(getRenderIntents,
-                       Error(android::ui::ColorMode, std::vector<android::ui::RenderIntent>*));
-    MOCK_METHOD2(getDataspaceSaturationMatrix, Error(android::ui::Dataspace, android::mat4*));
+                       hal::Error(hal::ColorMode, std::vector<hal::RenderIntent>*));
+    MOCK_METHOD2(getDataspaceSaturationMatrix, hal::Error(hal::Dataspace, android::mat4*));
     MOCK_CONST_METHOD0(getConfigs, std::vector<std::shared_ptr<const Config>>());
 
-    MOCK_CONST_METHOD1(getName, Error(std::string*));
+    MOCK_CONST_METHOD1(getName, hal::Error(std::string*));
     MOCK_METHOD2(getRequests,
-                 Error(HWC2::DisplayRequest*, std::unordered_map<Layer*, HWC2::LayerRequest>*));
-    MOCK_CONST_METHOD1(getType, Error(HWC2::DisplayType*));
-    MOCK_CONST_METHOD1(supportsDoze, Error(bool*));
-    MOCK_CONST_METHOD1(getHdrCapabilities, Error(android::HdrCapabilities*));
+                 hal::Error(hal::DisplayRequest*, std::unordered_map<Layer*, hal::LayerRequest>*));
+    MOCK_CONST_METHOD1(getType, hal::Error(hal::DisplayType*));
+    MOCK_CONST_METHOD1(supportsDoze, hal::Error(bool*));
+    MOCK_CONST_METHOD1(getHdrCapabilities, hal::Error(android::HdrCapabilities*));
     MOCK_CONST_METHOD3(getDisplayedContentSamplingAttributes,
-                       Error(android::ui::PixelFormat*, android::ui::Dataspace*, uint8_t*));
-    MOCK_CONST_METHOD3(setDisplayContentSamplingEnabled, Error(bool, uint8_t, uint64_t));
+                       hal::Error(hal::PixelFormat*, hal::Dataspace*, uint8_t*));
+    MOCK_CONST_METHOD3(setDisplayContentSamplingEnabled, hal::Error(bool, uint8_t, uint64_t));
     MOCK_CONST_METHOD3(getDisplayedContentSample,
-                       Error(uint64_t, uint64_t, android::DisplayedFrameStats*));
-    MOCK_CONST_METHOD1(getReleaseFences,
-                       Error(std::unordered_map<Layer*, android::sp<android::Fence>>* outFences));
-    MOCK_METHOD1(present, Error(android::sp<android::Fence>*));
-    MOCK_METHOD1(setActiveConfig, Error(const std::shared_ptr<const HWC2::Display::Config>&));
+                       hal::Error(uint64_t, uint64_t, android::DisplayedFrameStats*));
+    MOCK_CONST_METHOD1(
+            getReleaseFences,
+            hal::Error(std::unordered_map<Layer*, android::sp<android::Fence>>* outFences));
+    MOCK_METHOD1(present, hal::Error(android::sp<android::Fence>*));
+    MOCK_METHOD1(setActiveConfig, hal::Error(const std::shared_ptr<const HWC2::Display::Config>&));
     MOCK_METHOD4(setClientTarget,
-                 Error(uint32_t, const android::sp<android::GraphicBuffer>&,
-                       const android::sp<android::Fence>&, android::ui::Dataspace));
-    MOCK_METHOD2(setColorMode, Error(android::ui::ColorMode, android::ui::RenderIntent));
-    MOCK_METHOD2(setColorTransform, Error(const android::mat4&, android_color_transform_t));
+                 hal::Error(uint32_t, const android::sp<android::GraphicBuffer>&,
+                            const android::sp<android::Fence>&, hal::Dataspace));
+    MOCK_METHOD2(setColorMode, hal::Error(hal::ColorMode, hal::RenderIntent));
+    MOCK_METHOD2(setColorTransform, hal::Error(const android::mat4&, hal::ColorTransform));
     MOCK_METHOD2(setOutputBuffer,
-                 Error(const android::sp<android::GraphicBuffer>&,
-                       const android::sp<android::Fence>&));
-    MOCK_METHOD1(setPowerMode, Error(HWC2::PowerMode));
-    MOCK_METHOD1(setVsyncEnabled, Error(HWC2::Vsync));
-    MOCK_METHOD2(validate, Error(uint32_t*, uint32_t*));
+                 hal::Error(const android::sp<android::GraphicBuffer>&,
+                            const android::sp<android::Fence>&));
+    MOCK_METHOD1(setPowerMode, hal::Error(hal::PowerMode));
+    MOCK_METHOD1(setVsyncEnabled, hal::Error(hal::Vsync));
+    MOCK_METHOD2(validate, hal::Error(uint32_t*, uint32_t*));
     MOCK_METHOD4(presentOrValidate,
-                 Error(uint32_t*, uint32_t*, android::sp<android::Fence>*, uint32_t*));
-    MOCK_CONST_METHOD1(setDisplayBrightness, Error(float));
-    MOCK_CONST_METHOD1(getDisplayVsyncPeriod, Error(nsecs_t*));
+                 hal::Error(uint32_t*, uint32_t*, android::sp<android::Fence>*, uint32_t*));
+    MOCK_CONST_METHOD1(setDisplayBrightness, hal::Error(float));
+    MOCK_CONST_METHOD1(getDisplayVsyncPeriod, hal::Error(nsecs_t*));
     MOCK_METHOD3(setActiveConfigWithConstraints,
-                 Error(const std::shared_ptr<const HWC2::Display::Config>&,
-                       const HWC2::VsyncPeriodChangeConstraints&,
-                       HWC2::VsyncPeriodChangeTimeline*));
-    MOCK_CONST_METHOD1(setAutoLowLatencyMode, Error(bool on));
-    MOCK_CONST_METHOD1(getSupportedContentTypes, Error(std::vector<HWC2::ContentType>*));
-    MOCK_CONST_METHOD1(setContentType, Error(HWC2::ContentType));
-    MOCK_CONST_METHOD1(getConnectionType, Error(android::DisplayConnectionType*));
+                 hal::Error(const std::shared_ptr<const HWC2::Display::Config>&,
+                            const hal::VsyncPeriodChangeConstraints&,
+                            hal::VsyncPeriodChangeTimeline*));
+    MOCK_CONST_METHOD1(setAutoLowLatencyMode, hal::Error(bool on));
+    MOCK_CONST_METHOD1(getSupportedContentTypes, hal::Error(std::vector<hal::ContentType>*));
+    MOCK_CONST_METHOD1(setContentType, hal::Error(hal::ContentType));
+    MOCK_CONST_METHOD1(getConnectionType, hal::Error(android::DisplayConnectionType*));
     MOCK_CONST_METHOD0(isVsyncPeriodSwitchSupported, bool());
 };
 
diff --git a/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp b/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp
index f6c4f62..1c8c44d 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp
+++ b/services/surfaceflinger/tests/unittests/mock/MockDispSync.cpp
@@ -17,6 +17,7 @@
 #include "mock/MockDispSync.h"
 #include <thread>
 
+using namespace std::chrono_literals;
 namespace android {
 namespace mock {
 
@@ -54,8 +55,9 @@
 void DispSync::triggerCallback() {
     if (mCallback.callback == nullptr) return;
 
-    mCallback.callback->onDispSyncEvent(
-            std::chrono::steady_clock::now().time_since_epoch().count());
+    const std::chrono::nanoseconds now = std::chrono::steady_clock::now().time_since_epoch();
+    const auto expectedVSyncTime = now + 16ms;
+    mCallback.callback->onDispSyncEvent(now.count(), expectedVSyncTime.count());
 }
 
 } // namespace mock
diff --git a/services/surfaceflinger/tests/unittests/mock/MockDispSync.h b/services/surfaceflinger/tests/unittests/mock/MockDispSync.h
index a2ae6c9..b39487c 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockDispSync.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockDispSync.h
@@ -37,9 +37,9 @@
     MOCK_METHOD0(getPeriod, nsecs_t());
     MOCK_METHOD0(getIntendedPeriod, nsecs_t());
     MOCK_METHOD1(setRefreshSkipCount, void(int));
-    MOCK_CONST_METHOD1(computeNextRefresh, nsecs_t(int));
+    MOCK_CONST_METHOD2(computeNextRefresh, nsecs_t(int, nsecs_t));
     MOCK_METHOD1(setIgnorePresentFences, void(bool));
-    MOCK_METHOD0(expectedPresentTime, nsecs_t());
+    MOCK_METHOD1(expectedPresentTime, nsecs_t(nsecs_t));
 
     MOCK_CONST_METHOD1(dump, void(std::string&));
 
diff --git a/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h b/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h
index 9ea4dd0..4186e2b 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h
@@ -37,6 +37,7 @@
     MOCK_METHOD0(incrementClientCompositionFrames, void());
     MOCK_METHOD0(incrementClientCompositionReusedFrames, void());
     MOCK_METHOD0(incrementRefreshRateSwitches, void());
+    MOCK_METHOD0(incrementCompositionStrategyChanges, void());
     MOCK_METHOD1(recordDisplayEventConnectionCount, void(int32_t));
     MOCK_METHOD2(recordFrameDuration, void(nsecs_t, nsecs_t));
     MOCK_METHOD2(recordRenderEngineDuration, void(nsecs_t, nsecs_t));
@@ -52,7 +53,8 @@
     MOCK_METHOD3(setPresentFence, void(int32_t, uint64_t, const std::shared_ptr<FenceTime>&));
     MOCK_METHOD1(onDestroy, void(int32_t));
     MOCK_METHOD2(removeTimeRecord, void(int32_t, uint64_t));
-    MOCK_METHOD1(setPowerMode, void(int32_t));
+    MOCK_METHOD1(setPowerMode,
+                 void(hardware::graphics::composer::V2_4::IComposerClient::PowerMode));
     MOCK_METHOD2(recordRefreshRate, void(uint32_t, nsecs_t));
     MOCK_METHOD1(setPresentFenceGlobal, void(const std::shared_ptr<FenceTime>&));
 };
diff --git a/services/surfaceflinger/tests/utils/TransactionUtils.h b/services/surfaceflinger/tests/utils/TransactionUtils.h
index 2c63da0..8e1f943 100644
--- a/services/surfaceflinger/tests/utils/TransactionUtils.h
+++ b/services/surfaceflinger/tests/utils/TransactionUtils.h
@@ -17,18 +17,13 @@
 #pragma once
 
 #include <chrono>
-#include <gtest/gtest.h>
 
 #include <android/native_window.h>
-#include <hardware/hwcomposer_defs.h>
-
 #include <binder/IPCThreadState.h>
-
+#include <gtest/gtest.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
-
 #include <private/gui/ComposerService.h>
-
 #include <ui/GraphicBuffer.h>
 #include <ui/Rect.h>