diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index 26f9d79..e9a16d4 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -42,6 +42,7 @@
 
 #include <android-base/file.h>
 #include <android-base/logging.h>
+#include <android-base/parseint.h>
 #include <android-base/properties.h>
 #include <android-base/scopeguard.h>
 #include <android-base/stringprintf.h>
@@ -75,6 +76,7 @@
 #define LOG_TAG "installd"
 #endif
 
+using android::base::ParseUint;
 using android::base::StringPrintf;
 using std::endl;
 
@@ -1101,6 +1103,43 @@
     return ok();
 }
 
+binder::Status InstalldNativeService::destroyCeSnapshotsNotSpecified(
+        const std::optional<std::string> &volumeUuid, const int32_t user,
+        const std::vector<int32_t>& retainSnapshotIds) {
+    ENFORCE_UID(AID_SYSTEM);
+    CHECK_ARGUMENT_UUID_IS_TEST_OR_NULL(volumeUuid);
+    std::lock_guard<std::recursive_mutex> lock(mLock);
+
+    const char* volume_uuid = volumeUuid ? volumeUuid->c_str() : nullptr;
+
+    auto base_path = create_data_misc_ce_rollback_base_path(volume_uuid, user);
+
+    std::unique_ptr<DIR, decltype(&closedir)> dir(opendir(base_path.c_str()), closedir);
+    if (!dir) {
+        return error(-1, "Failed to open rollback base dir " + base_path);
+    }
+
+    struct dirent* ent;
+    while ((ent = readdir(dir.get()))) {
+        if (ent->d_type != DT_DIR) {
+            continue;
+        }
+
+        uint snapshot_id;
+        bool parse_ok = ParseUint(ent->d_name, &snapshot_id);
+        if (parse_ok &&
+                std::find(retainSnapshotIds.begin(), retainSnapshotIds.end(),
+                          snapshot_id) == retainSnapshotIds.end()) {
+            auto rollback_path = create_data_misc_ce_rollback_path(
+                volume_uuid, user, snapshot_id);
+            int res = delete_dir_contents_and_dir(rollback_path, true /* ignore_if_missing */);
+            if (res != 0) {
+                return error(res, "Failed clearing snapshot " + rollback_path);
+            }
+        }
+    }
+    return ok();
+}
 
 binder::Status InstalldNativeService::moveCompleteApp(const std::optional<std::string>& fromUuid,
         const std::optional<std::string>& toUuid, const std::string& packageName,
@@ -2178,7 +2217,7 @@
 #if CRATE_DEBUG
     LOG(WARNING) << "retVector.size() =" << retVector.size();
     for (auto& item : retVector) {
-        CrateManager::dump(item);
+        CrateManager::dump(*item);
     }
 #endif
 
@@ -2210,7 +2249,7 @@
         if (cratedFolder == nullptr) {
             return;
         }
-        retVector->push_back(std::move(crateMetadata));
+        retVector.push_back(std::move(crateMetadata));
     };
 
     std::function<void(FTSENT*)> onHandingPackage = [&](FTSENT* packageDir) -> void {
@@ -2222,7 +2261,7 @@
 #if CRATE_DEBUG
     LOG(DEBUG) << "retVector.size() =" << retVector.size();
     for (auto& item : retVector) {
-        CrateManager::dump(item);
+        CrateManager::dump(*item);
     }
 #endif
 
diff --git a/cmds/installd/InstalldNativeService.h b/cmds/installd/InstalldNativeService.h
index 8e22c3e..08be4d9 100644
--- a/cmds/installd/InstalldNativeService.h
+++ b/cmds/installd/InstalldNativeService.h
@@ -69,6 +69,8 @@
     binder::Status destroyAppDataSnapshot(const std::optional<std::string> &volumeUuid,
             const std::string& packageName, const int32_t user, const int64_t ceSnapshotInode,
             const int32_t snapshotId, int32_t storageFlags);
+    binder::Status destroyCeSnapshotsNotSpecified(const std::optional<std::string> &volumeUuid,
+            const int32_t user, const std::vector<int32_t>& retainSnapshotIds);
 
     binder::Status getAppSize(const std::optional<std::string>& uuid,
             const std::vector<std::string>& packageNames, int32_t userId, int32_t flags,
diff --git a/cmds/installd/binder/android/os/IInstalld.aidl b/cmds/installd/binder/android/os/IInstalld.aidl
index ca95cb3..5e5af73 100644
--- a/cmds/installd/binder/android/os/IInstalld.aidl
+++ b/cmds/installd/binder/android/os/IInstalld.aidl
@@ -116,6 +116,9 @@
             int appId, @utf8InCpp String seInfo, int user, int snapshotId, int storageflags);
     void destroyAppDataSnapshot(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,
             int userId, long ceSnapshotInode, int snapshotId, int storageFlags);
+    void destroyCeSnapshotsNotSpecified(@nullable @utf8InCpp String uuid, int userId,
+            in int[] retainSnapshotIds);
+
     void tryMountDataMirror(@nullable @utf8InCpp String volumeUuid);
     void onPrivateVolumeRemoved(@nullable @utf8InCpp String volumeUuid);
 
diff --git a/cmds/installd/tests/installd_service_test.cpp b/cmds/installd/tests/installd_service_test.cpp
index 7278677..1e7559d 100644
--- a/cmds/installd/tests/installd_service_test.cpp
+++ b/cmds/installd/tests/installd_service_test.cpp
@@ -640,6 +640,46 @@
           "com.foo", 0, 0, 43, FLAG_STORAGE_DE).isOk());
 }
 
+TEST_F(AppDataSnapshotTest, DestroyCeSnapshotsNotSpecified) {
+  auto rollback_ce_dir_in_1 = create_data_misc_ce_rollback_path("TEST", 0, 1543);
+  auto rollback_ce_dir_in_2 = create_data_misc_ce_rollback_path("TEST", 0, 77);
+  auto rollback_ce_dir_out_1 = create_data_misc_ce_rollback_path("TEST", 0, 1500);
+  auto rollback_ce_dir_out_2 = create_data_misc_ce_rollback_path("TEST", 0, 2);
+
+  // Create snapshots
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_in_1 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_in_1 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_in_2 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_in_2 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_out_1 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_out_1 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(mkdirs(rollback_ce_dir_out_2 + "/com.foo/", 0700));
+  ASSERT_TRUE(android::base::WriteStringToFile(
+          "CE_RESTORE_CONTENT", rollback_ce_dir_out_2 + "/com.foo/file1",
+          0700, 10000, 20000, false /* follow_symlinks */));
+
+  ASSERT_TRUE(service->destroyCeSnapshotsNotSpecified(
+          std::make_optional<std::string>("TEST"), 0, { 1543, 77 }).isOk());
+
+  // Check only snapshots not specified are deleted.
+  struct stat sb;
+  ASSERT_EQ(0, stat((rollback_ce_dir_in_1 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(0, stat((rollback_ce_dir_in_2 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(-1, stat((rollback_ce_dir_out_1 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(ENOENT, errno);
+  ASSERT_EQ(-1, stat((rollback_ce_dir_out_2 + "/com.foo").c_str(), &sb));
+  ASSERT_EQ(ENOENT, errno);
+}
+
 TEST_F(AppDataSnapshotTest, RestoreAppDataSnapshot_WrongVolumeUuid) {
   // Setup rollback data to make sure that fails due to wrong volumeUuid being
   // passed, not because of some other reason.
diff --git a/include/input/InputWindow.h b/include/input/InputWindow.h
index c44db51..aa85e6d 100644
--- a/include/input/InputWindow.h
+++ b/include/input/InputWindow.h
@@ -107,6 +107,7 @@
         TYPE_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+27,
         TYPE_ACCESSIBILITY_OVERLAY = FIRST_SYSTEM_WINDOW+32,
         TYPE_DOCK_DIVIDER = FIRST_SYSTEM_WINDOW+34,
+        TYPE_ACCESSIBILITY_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+39,
         LAST_SYSTEM_WINDOW      = 2999,
     };
 
diff --git a/libs/binder/fuzzer/binder.cpp b/libs/binder/fuzzer/binder.cpp
index 52c730c..8c0495c 100644
--- a/libs/binder/fuzzer/binder.cpp
+++ b/libs/binder/fuzzer/binder.cpp
@@ -135,6 +135,7 @@
 
     PARCEL_READ_WITH_STATUS(std::string, readUtf8FromUtf16),
     PARCEL_READ_WITH_STATUS(std::unique_ptr<std::string>, readUtf8FromUtf16),
+    PARCEL_READ_WITH_STATUS(std::optional<std::string>, readUtf8FromUtf16),
     [] (const ::android::Parcel& p, uint8_t /*data*/) {
         FUZZ_LOG() << "about to read c-str";
         const char* str = p.readCString();
@@ -143,6 +144,7 @@
     PARCEL_READ_OPT_STATUS(android::String8, readString8),
     PARCEL_READ_OPT_STATUS(android::String16, readString16),
     PARCEL_READ_WITH_STATUS(std::unique_ptr<android::String16>, readString16),
+    PARCEL_READ_WITH_STATUS(std::optional<android::String16>, readString16),
     [] (const ::android::Parcel& p, uint8_t /*data*/) {
         FUZZ_LOG() << "about to readString16Inplace";
         size_t outLen = 0;
@@ -156,17 +158,22 @@
     // TODO(b/131868573): can force read of arbitrarily sized vector
     // PARCEL_READ_WITH_STATUS(std::vector<ByteEnum>, readEnumVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<ByteEnum>>, readEnumVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<ByteEnum>>, readEnumVector),
     // PARCEL_READ_WITH_STATUS(std::vector<IntEnum>, readEnumVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<IntEnum>>, readEnumVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<IntEnum>>, readEnumVector),
     // PARCEL_READ_WITH_STATUS(std::vector<LongEnum>, readEnumVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<LongEnum>>, readEnumVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<LongEnum>>, readEnumVector),
 
     // only reading one parcelable type for now
     // TODO(b/131868573): can force read of arbitrarily sized vector
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<std::unique_ptr<ExampleParcelable>>>, readParcelableVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<std::optional<ExampleParcelable>>>, readParcelableVector),
     // PARCEL_READ_WITH_STATUS(std::vector<ExampleParcelable>, readParcelableVector),
     PARCEL_READ_WITH_STATUS(ExampleParcelable, readParcelable),
     PARCEL_READ_WITH_STATUS(std::unique_ptr<ExampleParcelable>, readParcelable),
+    PARCEL_READ_WITH_STATUS(std::optional<ExampleParcelable>, readParcelable),
 
     // only reading one binder type for now
     PARCEL_READ_WITH_STATUS(android::sp<android::os::IServiceManager>, readStrongBinder),
@@ -174,30 +181,42 @@
 
     // TODO(b/131868573): can force read of arbitrarily sized vector
     // PARCEL_READ_WITH_STATUS(::std::unique_ptr<std::vector<android::sp<android::IBinder>>>, readStrongBinderVector),
+    // PARCEL_READ_WITH_STATUS(::std::optional<std::vector<android::sp<android::IBinder>>>, readStrongBinderVector),
     // PARCEL_READ_WITH_STATUS(std::vector<android::sp<android::IBinder>>, readStrongBinderVector),
 
     // TODO(b/131868573): can force read of arbitrarily sized vector
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<int8_t>>, readByteVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<int8_t>>, readByteVector),
     // PARCEL_READ_WITH_STATUS(std::vector<int8_t>, readByteVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<uint8_t>>, readByteVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<uint8_t>>, readByteVector),
     // PARCEL_READ_WITH_STATUS(std::vector<uint8_t>, readByteVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<int32_t>>, readInt32Vector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<int32_t>>, readInt32Vector),
     // PARCEL_READ_WITH_STATUS(std::vector<int32_t>, readInt32Vector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<int64_t>>, readInt64Vector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<int64_t>>, readInt64Vector),
     // PARCEL_READ_WITH_STATUS(std::vector<int64_t>, readInt64Vector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<uint64_t>>, readUint64Vector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<uint64_t>>, readUint64Vector),
     // PARCEL_READ_WITH_STATUS(std::vector<uint64_t>, readUint64Vector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<float>>, readFloatVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<float>>, readFloatVector),
     // PARCEL_READ_WITH_STATUS(std::vector<float>, readFloatVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<double>>, readDoubleVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<double>>, readDoubleVector),
     // PARCEL_READ_WITH_STATUS(std::vector<double>, readDoubleVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<bool>>, readBoolVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<bool>>, readBoolVector),
     // PARCEL_READ_WITH_STATUS(std::vector<bool>, readBoolVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<char16_t>>, readCharVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<char16_t>>, readCharVector),
     // PARCEL_READ_WITH_STATUS(std::vector<char16_t>, readCharVector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<std::unique_ptr<android::String16>>>, readString16Vector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<std::optional<android::String16>>>, readString16Vector),
     // PARCEL_READ_WITH_STATUS(std::vector<android::String16>, readString16Vector),
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<std::unique_ptr<std::string>>>, readUtf8VectorFromUtf16Vector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<std::optional<std::string>>>, readUtf8VectorFromUtf16Vector),
     // PARCEL_READ_WITH_STATUS(std::vector<std::string>, readUtf8VectorFromUtf16Vector),
 
     [] (const android::Parcel& p, uint8_t /*len*/) {
@@ -234,6 +253,7 @@
 
     // TODO(b/131868573): can force read of arbitrarily sized vector
     // PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<android::base::unique_fd>>, readUniqueFileDescriptorVector),
+    // PARCEL_READ_WITH_STATUS(std::optional<std::vector<android::base::unique_fd>>, readUniqueFileDescriptorVector),
     // PARCEL_READ_WITH_STATUS(std::vector<android::base::unique_fd>, readUniqueFileDescriptorVector),
 
     [] (const android::Parcel& p, uint8_t len) {
diff --git a/libs/graphicsenv/GraphicsEnv.cpp b/libs/graphicsenv/GraphicsEnv.cpp
index 4809c1f..e49fb08 100644
--- a/libs/graphicsenv/GraphicsEnv.cpp
+++ b/libs/graphicsenv/GraphicsEnv.cpp
@@ -29,7 +29,6 @@
 #include <android-base/strings.h>
 #include <android/dlext.h>
 #include <binder/IServiceManager.h>
-#include <cutils/properties.h>
 #include <graphicsenv/IGpuService.h>
 #include <log/log.h>
 #include <nativeloader/dlext_namespaces.h>
@@ -67,7 +66,7 @@
 
 static std::string vndkVersionStr() {
 #ifdef __BIONIC__
-    return android::base::GetProperty("ro.vndk.version", "");
+    return base::GetProperty("ro.vndk.version", "");
 #endif
     return "";
 }
@@ -338,10 +337,8 @@
 }
 
 bool GraphicsEnv::checkAngleRules(void* so) {
-    char manufacturer[PROPERTY_VALUE_MAX];
-    char model[PROPERTY_VALUE_MAX];
-    property_get("ro.product.manufacturer", manufacturer, "UNSET");
-    property_get("ro.product.model", model, "UNSET");
+    auto manufacturer = base::GetProperty("ro.product.manufacturer", "UNSET");
+    auto model = base::GetProperty("ro.product.model", "UNSET");
 
     auto ANGLEGetFeatureSupportUtilAPIVersion =
             (fpANGLEGetFeatureSupportUtilAPIVersion)dlsym(so,
@@ -394,7 +391,8 @@
                 ALOGW("ANGLE feature-support library cannot obtain SystemInfo");
                 break;
             }
-            if (!(ANGLEAddDeviceInfoToSystemInfo)(manufacturer, model, systemInfoHandle)) {
+            if (!(ANGLEAddDeviceInfoToSystemInfo)(manufacturer.c_str(), model.c_str(),
+                                                  systemInfoHandle)) {
                 ALOGW("ANGLE feature-support library cannot add device info to SystemInfo");
                 break;
             }
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 8d79cf8..7177b8d 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -371,10 +371,8 @@
         data.writeStrongBinder(display);
         remote()->transact(BnSurfaceComposer::GET_DISPLAY_INFO, data, &reply);
         const status_t result = reply.readInt32();
-        if (result == NO_ERROR) {
-            memcpy(info, reply.readInplace(sizeof(DisplayInfo)), sizeof(DisplayInfo));
-        }
-        return result;
+        if (result != NO_ERROR) return result;
+        return reply.read(*info);
     }
 
     virtual status_t getDisplayConfigs(const sp<IBinder>& display, Vector<DisplayConfig>* configs) {
@@ -1376,10 +1374,8 @@
             const sp<IBinder> display = data.readStrongBinder();
             const status_t result = getDisplayInfo(display, &info);
             reply->writeInt32(result);
-            if (result == NO_ERROR) {
-                memcpy(reply->writeInplace(sizeof(DisplayInfo)), &info, sizeof(DisplayInfo));
-            }
-            return NO_ERROR;
+            if (result != NO_ERROR) return result;
+            return reply->write(info);
         }
         case GET_DISPLAY_CONFIGS: {
             CHECK_INTERFACE(ISurfaceComposer, data, reply);
diff --git a/libs/input/InputWindow.cpp b/libs/input/InputWindow.cpp
index 03ca459..28da8b4 100644
--- a/libs/input/InputWindow.cpp
+++ b/libs/input/InputWindow.cpp
@@ -43,7 +43,8 @@
 }
 
 bool InputWindowInfo::isTrustedOverlay() const {
-    return layoutParamsType == TYPE_INPUT_METHOD
+    return layoutParamsType == TYPE_ACCESSIBILITY_MAGNIFICATION_OVERLAY
+            || layoutParamsType == TYPE_INPUT_METHOD
             || layoutParamsType == TYPE_INPUT_METHOD_DIALOG
             || layoutParamsType == TYPE_MAGNIFICATION_OVERLAY
             || layoutParamsType == TYPE_STATUS_BAR
diff --git a/libs/math/Android.bp b/libs/math/Android.bp
index 693bace..8e903e3 100644
--- a/libs/math/Android.bp
+++ b/libs/math/Android.bp
@@ -17,6 +17,11 @@
     host_supported: true,
     vendor_available: true,
     export_include_dirs: ["include"],
+    target:  {
+        windows: {
+            enabled: true,
+        }
+    }
 }
 
 subdirs = ["tests"]
diff --git a/libs/renderengine/gl/GLESRenderEngine.cpp b/libs/renderengine/gl/GLESRenderEngine.cpp
index e73f245..4bf7c80 100644
--- a/libs/renderengine/gl/GLESRenderEngine.cpp
+++ b/libs/renderengine/gl/GLESRenderEngine.cpp
@@ -948,7 +948,7 @@
 
 status_t GLESRenderEngine::drawLayers(const DisplaySettings& display,
                                       const std::vector<const LayerSettings*>& layers,
-                                      ANativeWindowBuffer* const buffer,
+                                      const sp<GraphicBuffer>& buffer,
                                       const bool useFramebufferCache, base::unique_fd&& bufferFence,
                                       base::unique_fd* drawFence) {
     ATRACE_CALL();
@@ -985,7 +985,9 @@
     const auto blurLayersSize = blurLayers.size();
 
     if (blurLayersSize == 0) {
-        fbo = std::make_unique<BindNativeBufferAsFramebuffer>(*this, buffer, useFramebufferCache);
+        fbo = std::make_unique<BindNativeBufferAsFramebuffer>(*this,
+                                                              buffer.get()->getNativeBuffer(),
+                                                              useFramebufferCache);
         if (fbo->getStatus() != NO_ERROR) {
             ALOGE("Failed to bind framebuffer! Aborting GPU composition for buffer (%p).",
                   buffer->handle);
@@ -1042,7 +1044,9 @@
 
             if (blurLayers.size() == 0) {
                 // Done blurring, time to bind the native FBO and render our blur onto it.
-                fbo = std::make_unique<BindNativeBufferAsFramebuffer>(*this, buffer,
+                fbo = std::make_unique<BindNativeBufferAsFramebuffer>(*this,
+                                                                      buffer.get()
+                                                                              ->getNativeBuffer(),
                                                                       useFramebufferCache);
                 status = fbo->getStatus();
                 setViewportAndProjection(display.physicalDisplay, display.clip);
diff --git a/libs/renderengine/gl/GLESRenderEngine.h b/libs/renderengine/gl/GLESRenderEngine.h
index 32dbad1..d3c94a6 100644
--- a/libs/renderengine/gl/GLESRenderEngine.h
+++ b/libs/renderengine/gl/GLESRenderEngine.h
@@ -74,7 +74,7 @@
     bool useProtectedContext(bool useProtectedContext) override;
     status_t drawLayers(const DisplaySettings& display,
                         const std::vector<const LayerSettings*>& layers,
-                        ANativeWindowBuffer* buffer, const bool useFramebufferCache,
+                        const sp<GraphicBuffer>& buffer, const bool useFramebufferCache,
                         base::unique_fd&& bufferFence, base::unique_fd* drawFence) override;
 
     EGLDisplay getEGLDisplay() const { return mEGLDisplay; }
diff --git a/libs/renderengine/include/renderengine/RenderEngine.h b/libs/renderengine/include/renderengine/RenderEngine.h
index 46f3fc6..4983cb3 100644
--- a/libs/renderengine/include/renderengine/RenderEngine.h
+++ b/libs/renderengine/include/renderengine/RenderEngine.h
@@ -155,7 +155,7 @@
     // now, this always returns NO_ERROR.
     virtual status_t drawLayers(const DisplaySettings& display,
                                 const std::vector<const LayerSettings*>& layers,
-                                ANativeWindowBuffer* buffer, const bool useFramebufferCache,
+                                const sp<GraphicBuffer>& buffer, const bool useFramebufferCache,
                                 base::unique_fd&& bufferFence, base::unique_fd* drawFence) = 0;
 
 protected:
diff --git a/libs/renderengine/include/renderengine/mock/RenderEngine.h b/libs/renderengine/include/renderengine/mock/RenderEngine.h
index 3358c69..7f20c8c 100644
--- a/libs/renderengine/include/renderengine/mock/RenderEngine.h
+++ b/libs/renderengine/include/renderengine/mock/RenderEngine.h
@@ -57,7 +57,8 @@
     MOCK_METHOD1(useProtectedContext, bool(bool));
     MOCK_METHOD6(drawLayers,
                  status_t(const DisplaySettings&, const std::vector<const LayerSettings*>&,
-                          ANativeWindowBuffer*, const bool, base::unique_fd&&, base::unique_fd*));
+                          const sp<GraphicBuffer>&, const bool, base::unique_fd&&,
+                          base::unique_fd*));
 };
 
 } // namespace mock
diff --git a/libs/renderengine/tests/RenderEngineTest.cpp b/libs/renderengine/tests/RenderEngineTest.cpp
index afcbc50..1edfb61 100644
--- a/libs/renderengine/tests/RenderEngineTest.cpp
+++ b/libs/renderengine/tests/RenderEngineTest.cpp
@@ -252,8 +252,8 @@
                     std::vector<const renderengine::LayerSettings*> layers,
                     sp<GraphicBuffer> buffer) {
         base::unique_fd fence;
-        status_t status = sRE->drawLayers(settings, layers, buffer->getNativeBuffer(), true,
-                                          base::unique_fd(), &fence);
+        status_t status =
+                sRE->drawLayers(settings, layers, buffer, true, base::unique_fd(), &fence);
         sCurrentBuffer = buffer;
 
         int fd = fence.release();
@@ -1008,8 +1008,7 @@
     layer.alpha = 1.0;
     layers.push_back(&layer);
 
-    status_t status = sRE->drawLayers(settings, layers, mBuffer->getNativeBuffer(), true,
-                                      base::unique_fd(), nullptr);
+    status_t status = sRE->drawLayers(settings, layers, mBuffer, true, base::unique_fd(), nullptr);
     sCurrentBuffer = mBuffer;
     ASSERT_EQ(NO_ERROR, status);
     expectBufferColor(fullscreenRect(), 255, 0, 0, 255);
@@ -1027,8 +1026,7 @@
     layer.alpha = 1.0;
     layers.push_back(&layer);
 
-    status_t status = sRE->drawLayers(settings, layers, mBuffer->getNativeBuffer(), false,
-                                      base::unique_fd(), nullptr);
+    status_t status = sRE->drawLayers(settings, layers, mBuffer, false, base::unique_fd(), nullptr);
     sCurrentBuffer = mBuffer;
     ASSERT_EQ(NO_ERROR, status);
     ASSERT_FALSE(sRE->isFramebufferImageCachedForTesting(mBuffer->getId()));
diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index ba6255d..3965cf0 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -12,6 +12,64 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+cc_defaults {
+    name: "libui-defaults",
+    clang: true,
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
+    cppflags: [
+        "-Wextra",
+    ],
+
+    sanitize: {
+        integer_overflow: true,
+        misc_undefined: ["bounds"],
+    },
+
+}
+
+cc_library_static {
+    name: "libui-types",
+    vendor_available: true,
+    host_supported: true,
+    target: {
+        windows: {
+            enabled: true,
+        }
+    },
+
+    defaults: [
+        "libui-defaults",
+    ],
+
+    apex_available: [
+        "//apex_available:anyapex",
+        "//apex_available:platform",
+    ],
+    shared_libs: [
+        "libutils",
+    ],
+
+    static_libs: [
+        "libmath",
+    ],
+
+    srcs: [
+        "ColorSpace.cpp",
+    ],
+
+    export_include_dirs: [
+        "include_types",
+    ],
+
+    export_static_lib_headers: [
+        "libmath",
+    ],
+
+}
+
 cc_library_shared {
     name: "libui",
     vendor_available: true,
@@ -35,11 +93,12 @@
     },
 
     srcs: [
-        "ColorSpace.cpp",
         "BufferHubBuffer.cpp",
         "BufferHubEventFd.cpp",
         "BufferHubMetadata.cpp",
         "DebugUtils.cpp",
+        "DeviceProductInfo.cpp",
+        "DisplayInfo.cpp",
         "Fence.cpp",
         "FenceTime.cpp",
         "FrameStats.cpp",
@@ -68,8 +127,11 @@
         "include_private",
     ],
 
-    // Uncomment the following line to enable VALIDATE_REGIONS traces
-    //defaults: ["libui-validate-regions-defaults"],
+    defaults: [
+        "libui-defaults",
+        // Uncomment the following line to enable VALIDATE_REGIONS traces
+        //defaults: ["libui-validate-regions-defaults"],
+    ],
 
     shared_libs: [
         "android.frameworks.bufferhub@1.0",
@@ -104,6 +166,10 @@
         "libmath",
     ],
 
+    whole_static_libs: [
+        "libui-types",
+    ],
+
     // bufferhub is not used when building libgui for vendors
     target: {
         vendor: {
diff --git a/libs/ui/DeviceProductInfo.cpp b/libs/ui/DeviceProductInfo.cpp
new file mode 100644
index 0000000..efd61b6
--- /dev/null
+++ b/libs/ui/DeviceProductInfo.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ui/DeviceProductInfo.h>
+
+#include <ui/FlattenableHelpers.h>
+
+namespace android {
+
+size_t DeviceProductInfo::getFlattenedSize() const {
+    return FlattenableHelpers::getFlattenedSize(name) + sizeof(manufacturerPnpId) +
+            FlattenableHelpers::getFlattenedSize(productId) + sizeof(manufactureOrModelDate);
+}
+
+status_t DeviceProductInfo::flatten(void* buffer, size_t size) const {
+    if (size < getFlattenedSize()) {
+        return NO_MEMORY;
+    }
+    FlattenableHelpers::write(buffer, size, name);
+    FlattenableUtils::write(buffer, size, manufacturerPnpId);
+    FlattenableHelpers::write(buffer, size, productId);
+    FlattenableUtils::write(buffer, size, manufactureOrModelDate);
+    return NO_ERROR;
+}
+
+status_t DeviceProductInfo::unflatten(void const* buffer, size_t size) {
+    if (size < getFlattenedSize()) {
+        return NO_MEMORY;
+    }
+    FlattenableHelpers::read(buffer, size, &name);
+    FlattenableUtils::read(buffer, size, manufacturerPnpId);
+    FlattenableHelpers::read(buffer, size, &productId);
+    FlattenableUtils::read(buffer, size, manufactureOrModelDate);
+    return NO_ERROR;
+}
+
+} // namespace android
diff --git a/libs/ui/DisplayInfo.cpp b/libs/ui/DisplayInfo.cpp
new file mode 100644
index 0000000..6ed7e19
--- /dev/null
+++ b/libs/ui/DisplayInfo.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ui/DisplayInfo.h>
+
+#include <cstdint>
+
+#include <ui/FlattenableHelpers.h>
+
+namespace android {
+
+size_t DisplayInfo::getFlattenedSize() const {
+    return sizeof(connectionType) + sizeof(density) + sizeof(secure) +
+            FlattenableHelpers::getFlattenedSize(deviceProductInfo);
+}
+
+status_t DisplayInfo::flatten(void* buffer, size_t size) const {
+    if (size < getFlattenedSize()) {
+        return NO_MEMORY;
+    }
+    FlattenableUtils::write(buffer, size, connectionType);
+    FlattenableUtils::write(buffer, size, density);
+    FlattenableUtils::write(buffer, size, secure);
+    FlattenableHelpers::write(buffer, size, deviceProductInfo);
+
+    return NO_ERROR;
+}
+
+status_t DisplayInfo::unflatten(void const* buffer, size_t size) {
+    if (size < getFlattenedSize()) {
+        return NO_MEMORY;
+    }
+    FlattenableUtils::read(buffer, size, connectionType);
+    FlattenableUtils::read(buffer, size, density);
+    FlattenableUtils::read(buffer, size, secure);
+    FlattenableHelpers::read(buffer, size, &deviceProductInfo);
+
+    return NO_ERROR;
+}
+
+} // namespace android
diff --git a/libs/ui/include/ui/DeviceProductInfo.h b/libs/ui/include/ui/DeviceProductInfo.h
index c396e73..cc5ebe4 100644
--- a/libs/ui/include/ui/DeviceProductInfo.h
+++ b/libs/ui/include/ui/DeviceProductInfo.h
@@ -19,8 +19,12 @@
 #include <array>
 #include <cstdint>
 #include <optional>
+#include <string>
+#include <type_traits>
 #include <variant>
 
+#include <utils/Flattenable.h>
+
 namespace android {
 
 // NUL-terminated plug and play ID.
@@ -29,9 +33,7 @@
 // Product-specific information about the display or the directly connected device on the
 // display chain. For example, if the display is transitively connected, this field may contain
 // product information about the intermediate device.
-struct DeviceProductInfo {
-    static constexpr size_t TEXT_BUFFER_SIZE = 20;
-
+struct DeviceProductInfo : LightFlattenable<DeviceProductInfo> {
     struct ModelYear {
         uint32_t year;
     };
@@ -44,16 +46,22 @@
     };
 
     // Display name.
-    std::array<char, TEXT_BUFFER_SIZE> name;
+    std::string name;
 
     // Manufacturer Plug and Play ID.
     PnpId manufacturerPnpId;
 
     // Manufacturer product ID.
-    std::array<char, TEXT_BUFFER_SIZE> productId;
+    std::string productId;
 
     using ManufactureOrModelDate = std::variant<ModelYear, ManufactureYear, ManufactureWeekAndYear>;
+    static_assert(std::is_trivially_copyable_v<ManufactureOrModelDate>);
     ManufactureOrModelDate manufactureOrModelDate;
+
+    bool isFixedSize() const { return false; }
+    size_t getFlattenedSize() const;
+    status_t flatten(void* buffer, size_t size) const;
+    status_t unflatten(void const* buffer, size_t size);
 };
 
 } // namespace android
diff --git a/libs/ui/include/ui/DisplayInfo.h b/libs/ui/include/ui/DisplayInfo.h
index 897060c..03e0a38 100644
--- a/libs/ui/include/ui/DisplayInfo.h
+++ b/libs/ui/include/ui/DisplayInfo.h
@@ -20,19 +20,23 @@
 #include <type_traits>
 
 #include <ui/DeviceProductInfo.h>
+#include <utils/Flattenable.h>
 
 namespace android {
 
 enum class DisplayConnectionType { Internal, External };
 
 // Immutable information about physical display.
-struct DisplayInfo {
+struct DisplayInfo : LightFlattenable<DisplayInfo> {
     DisplayConnectionType connectionType = DisplayConnectionType::Internal;
     float density = 0.f;
     bool secure = false;
     std::optional<DeviceProductInfo> deviceProductInfo;
-};
 
-static_assert(std::is_trivially_copyable_v<DisplayInfo>);
+    bool isFixedSize() const { return false; }
+    size_t getFlattenedSize() const;
+    status_t flatten(void* buffer, size_t size) const;
+    status_t unflatten(void const* buffer, size_t size);
+};
 
 } // namespace android
diff --git a/libs/ui/include_private/ui/FlattenableHelpers.h b/libs/ui/include_private/ui/FlattenableHelpers.h
new file mode 100644
index 0000000..bdf4804
--- /dev/null
+++ b/libs/ui/include_private/ui/FlattenableHelpers.h
@@ -0,0 +1,71 @@
+/*
+ * 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 <optional>
+#include <type_traits>
+
+#include <utils/Flattenable.h>
+
+namespace android {
+
+struct FlattenableHelpers {
+    // Flattenable helpers for reading and writing std::string
+    static size_t getFlattenedSize(const std::string& str) { return str.length() + 1; }
+
+    static void write(void*& buffer, size_t& size, const std::string& str) {
+        strcpy(reinterpret_cast<char*>(buffer), str.c_str());
+        FlattenableUtils::advance(buffer, size, getFlattenedSize(str));
+    }
+
+    static void read(void const*& buffer, size_t& size, std::string* str) {
+        str->assign(reinterpret_cast<const char*>(buffer));
+        FlattenableUtils::advance(buffer, size, getFlattenedSize(*str));
+    }
+
+    // Flattenable utils for reading and writing std::optional
+    template <class T, typename = std::enable_if_t<std::is_base_of_v<LightFlattenable<T>, T>>>
+    static size_t getFlattenedSize(const std::optional<T>& value) {
+        return sizeof(bool) + (value ? value->getFlattenedSize() : 0);
+    }
+
+    template <class T, typename = std::enable_if_t<std::is_base_of_v<LightFlattenable<T>, T>>>
+    static void write(void*& buffer, size_t& size, const std::optional<T>& value) {
+        if (value) {
+            FlattenableUtils::write(buffer, size, true);
+            value->flatten(buffer, size);
+            FlattenableUtils::advance(buffer, size, value->getFlattenedSize());
+        } else {
+            FlattenableUtils::write(buffer, size, false);
+        }
+    }
+
+    template <class T, typename = std::enable_if_t<std::is_base_of_v<LightFlattenable<T>, T>>>
+    static void read(void const*& buffer, size_t& size, std::optional<T>* value) {
+        bool isPresent;
+        FlattenableUtils::read(buffer, size, isPresent);
+        if (isPresent) {
+            *value = T();
+            (*value)->unflatten(buffer, size);
+            FlattenableUtils::advance(buffer, size, (*value)->getFlattenedSize());
+        } else {
+            value->reset();
+        }
+    }
+};
+
+} // namespace android
diff --git a/libs/ui/include/ui/ColorSpace.h b/libs/ui/include_types/ui/ColorSpace.h
similarity index 100%
rename from libs/ui/include/ui/ColorSpace.h
rename to libs/ui/include_types/ui/ColorSpace.h
diff --git a/libs/ui/include_vndk/ui/ColorSpace.h b/libs/ui/include_vndk/ui/ColorSpace.h
index ddf70d5..7d2a6d3 120000
--- a/libs/ui/include_vndk/ui/ColorSpace.h
+++ b/libs/ui/include_vndk/ui/ColorSpace.h
@@ -1 +1 @@
-../../include/ui/ColorSpace.h
\ No newline at end of file
+../../include_types/ui/ColorSpace.h
\ No newline at end of file
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 4ec61b0..8942433 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -1993,13 +1993,13 @@
     int32_t displayId = windowHandle->getInfo()->displayId;
     const std::vector<sp<InputWindowHandle>> windowHandles = getWindowHandlesLocked(displayId);
     for (const sp<InputWindowHandle>& otherHandle : windowHandles) {
-        if (otherHandle == windowHandle) {
+        if (haveSameToken(otherHandle, windowHandle)) {
             break;
         }
 
         const InputWindowInfo* otherInfo = otherHandle->getInfo();
-        if (otherInfo->displayId == displayId && otherInfo->visible &&
-            !otherInfo->isTrustedOverlay() && otherInfo->frameContainsPoint(x, y)) {
+        if (otherInfo->visible && !otherInfo->isTrustedOverlay() &&
+            otherInfo->frameContainsPoint(x, y)) {
             return true;
         }
     }
@@ -2011,13 +2011,13 @@
     const std::vector<sp<InputWindowHandle>> windowHandles = getWindowHandlesLocked(displayId);
     const InputWindowInfo* windowInfo = windowHandle->getInfo();
     for (const sp<InputWindowHandle>& otherHandle : windowHandles) {
-        if (otherHandle == windowHandle) {
+        if (haveSameToken(otherHandle, windowHandle)) {
             break;
         }
 
         const InputWindowInfo* otherInfo = otherHandle->getInfo();
-        if (otherInfo->displayId == displayId && otherInfo->visible &&
-            !otherInfo->isTrustedOverlay() && otherInfo->overlaps(windowInfo)) {
+        if (otherInfo->visible && !otherInfo->isTrustedOverlay() &&
+            otherInfo->overlaps(windowInfo)) {
             return true;
         }
     }
diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index 248933e..7929beb 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp
@@ -913,9 +913,8 @@
 
     const nsecs_t renderEngineStart = systemTime();
     status_t status =
-            renderEngine.drawLayers(clientCompositionDisplay, clientCompositionLayerPointers,
-                                    buf->getNativeBuffer(), /*useFramebufferCache=*/true,
-                                    std::move(fd), &readyFence);
+            renderEngine.drawLayers(clientCompositionDisplay, clientCompositionLayerPointers, buf,
+                                    /*useFramebufferCache=*/true, std::move(fd), &readyFence);
 
     if (status != NO_ERROR && mClientCompositionRequestCache) {
         // If rendering was not successful, remove the request from the cache.
diff --git a/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp b/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp
index f24f314..63897cc 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp
+++ b/services/surfaceflinger/DisplayHardware/DisplayIdentification.cpp
@@ -70,12 +70,8 @@
 
 DeviceProductInfo buildDeviceProductInfo(const Edid& edid) {
     DeviceProductInfo info;
-    std::copy(edid.displayName.begin(), edid.displayName.end(), info.name.begin());
-    info.name[edid.displayName.size()] = '\0';
-
-    const auto productId = std::to_string(edid.productId);
-    std::copy(productId.begin(), productId.end(), info.productId.begin());
-    info.productId[productId.size()] = '\0';
+    info.name.assign(edid.displayName);
+    info.productId = std::to_string(edid.productId);
     info.manufacturerPnpId = edid.pnpId;
 
     constexpr uint8_t kModelYearFlag = 0xff;
@@ -181,7 +177,6 @@
 
     constexpr size_t kDescriptorCount = 4;
     constexpr size_t kDescriptorLength = 18;
-    static_assert(kDescriptorLength - kEdidHeaderLength < DeviceProductInfo::TEXT_BUFFER_SIZE);
 
     for (size_t i = 0; i < kDescriptorCount; i++) {
         if (view.size() < kDescriptorLength) {
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 880be28..13e711e 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -372,6 +372,10 @@
     const size_t defaultListSize = ISurfaceComposer::MAX_LAYERS;
     auto listSize = property_get_int32("debug.sf.max_igbp_list_size", int32_t(defaultListSize));
     mMaxGraphicBufferProducerListSize = (listSize > 0) ? size_t(listSize) : defaultListSize;
+    mGraphicBufferProducerListSizeLogThreshold =
+            std::max(static_cast<int>(0.95 *
+                                      static_cast<double>(mMaxGraphicBufferProducerListSize)),
+                     1);
 
     property_get("debug.sf.luma_sampling", value, "1");
     mLumaSampling = atoi(value);
@@ -3176,6 +3180,11 @@
                                 "Suspected IGBP leak: %zu IGBPs (%zu max), %zu Layers",
                                 mGraphicBufferProducerList.size(),
                                 mMaxGraphicBufferProducerListSize, mNumLayers.load());
+            if (mGraphicBufferProducerList.size() > mGraphicBufferProducerListSizeLogThreshold) {
+                ALOGW("Suspected IGBP leak: %zu IGBPs (%zu max), %zu Layers",
+                      mGraphicBufferProducerList.size(), mMaxGraphicBufferProducerListSize,
+                      mNumLayers.load());
+            }
         }
         mLayersAdded = true;
     }
@@ -4647,7 +4656,7 @@
         StringAppendF(&result, "Composition layers\n");
         mDrawingState.traverseInZOrder([&](Layer* layer) {
             auto* compositionState = layer->getCompositionState();
-            if (!compositionState) return;
+            if (!compositionState || !compositionState->isVisible) return;
 
             android::base::StringAppendF(&result, "* Layer %p (%s)\n", layer,
                                          layer->getDebugName() ? layer->getDebugName()
@@ -5712,8 +5721,8 @@
 
 void SurfaceFlinger::renderScreenImplLocked(const RenderArea& renderArea,
                                             TraverseLayersFunction traverseLayers,
-                                            ANativeWindowBuffer* buffer, bool useIdentityTransform,
-                                            int* outSyncFd) {
+                                            const sp<GraphicBuffer>& buffer,
+                                            bool useIdentityTransform, int* outSyncFd) {
     ATRACE_CALL();
 
     const auto reqWidth = renderArea.getReqWidth();
@@ -5838,7 +5847,7 @@
 
 status_t SurfaceFlinger::captureScreenImplLocked(const RenderArea& renderArea,
                                                  TraverseLayersFunction traverseLayers,
-                                                 ANativeWindowBuffer* buffer,
+                                                 const sp<GraphicBuffer>& buffer,
                                                  bool useIdentityTransform, bool forSystem,
                                                  int* outSyncFd, bool& outCapturedSecureLayers) {
     ATRACE_CALL();
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 60904f6..d68b215 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -702,7 +702,7 @@
     using TraverseLayersFunction = std::function<void(const LayerVector::Visitor&)>;
 
     void renderScreenImplLocked(const RenderArea& renderArea, TraverseLayersFunction traverseLayers,
-                                ANativeWindowBuffer* buffer, bool useIdentityTransform,
+                                const sp<GraphicBuffer>& buffer, bool useIdentityTransform,
                                 int* outSyncFd);
     status_t captureScreenCommon(RenderArea& renderArea, TraverseLayersFunction traverseLayers,
                                  sp<GraphicBuffer>* outBuffer, const ui::PixelFormat reqPixelFormat,
@@ -714,7 +714,7 @@
     const sp<DisplayDevice> getDisplayByLayerStack(uint64_t layerStack);
     status_t captureScreenImplLocked(const RenderArea& renderArea,
                                      TraverseLayersFunction traverseLayers,
-                                     ANativeWindowBuffer* buffer, bool useIdentityTransform,
+                                     const sp<GraphicBuffer>& buffer, bool useIdentityTransform,
                                      bool forSystem, int* outSyncFd, bool& outCapturedSecureLayers);
     void traverseLayersInDisplay(const sp<const DisplayDevice>& display,
                                  const LayerVector::Visitor& visitor);
@@ -1005,6 +1005,10 @@
     // Can't be unordered_set because wp<> isn't hashable
     std::set<wp<IBinder>> mGraphicBufferProducerList;
     size_t mMaxGraphicBufferProducerListSize = ISurfaceComposer::MAX_LAYERS;
+    // If there are more GraphicBufferProducers tracked by SurfaceFlinger than
+    // this threshold, then begin logging.
+    size_t mGraphicBufferProducerListSizeLogThreshold =
+            static_cast<size_t>(0.95 * static_cast<double>(MAX_LAYERS));
 
     // protected by mStateLock (but we could use another lock)
     bool mLayersRemoved = false;
diff --git a/services/surfaceflinger/tests/hwc2/Android.bp b/services/surfaceflinger/tests/hwc2/Android.bp
index 1c8e396..021699d 100644
--- a/services/surfaceflinger/tests/hwc2/Android.bp
+++ b/services/surfaceflinger/tests/hwc2/Android.bp
@@ -34,8 +34,6 @@
         "Hwc2TestPixelComparator.cpp",
     ],
     static_libs: [
-        "libadf",
-        "libadfhwc",
         "libbase",
         "libmath",
     ],
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index 2dcaf63..ad159b2 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -348,7 +348,7 @@
         EXPECT_CALL(*test->mRenderEngine, drawLayers)
                 .WillRepeatedly([](const renderengine::DisplaySettings& displaySettings,
                                    const std::vector<const renderengine::LayerSettings*>&,
-                                   ANativeWindowBuffer*, const bool, base::unique_fd&&,
+                                   const sp<GraphicBuffer>&, const bool, base::unique_fd&&,
                                    base::unique_fd*) -> status_t {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
@@ -397,7 +397,7 @@
         EXPECT_CALL(*test->mRenderEngine, drawLayers)
                 .WillRepeatedly([](const renderengine::DisplaySettings& displaySettings,
                                    const std::vector<const renderengine::LayerSettings*>&,
-                                   ANativeWindowBuffer*, const bool, base::unique_fd&&,
+                                   const sp<GraphicBuffer>&, const bool, base::unique_fd&&,
                                    base::unique_fd*) -> status_t {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
@@ -648,7 +648,7 @@
         EXPECT_CALL(*test->mRenderEngine, drawLayers)
                 .WillOnce([](const renderengine::DisplaySettings& displaySettings,
                              const std::vector<const renderengine::LayerSettings*>& layerSettings,
-                             ANativeWindowBuffer*, const bool, base::unique_fd&&,
+                             const sp<GraphicBuffer>&, const bool, base::unique_fd&&,
                              base::unique_fd*) -> status_t {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
@@ -697,7 +697,7 @@
         EXPECT_CALL(*test->mRenderEngine, drawLayers)
                 .WillOnce([](const renderengine::DisplaySettings& displaySettings,
                              const std::vector<const renderengine::LayerSettings*>& layerSettings,
-                             ANativeWindowBuffer*, const bool, base::unique_fd&&,
+                             const sp<GraphicBuffer>&, const bool, base::unique_fd&&,
                              base::unique_fd*) -> status_t {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
@@ -775,7 +775,7 @@
         EXPECT_CALL(*test->mRenderEngine, drawLayers)
                 .WillOnce([](const renderengine::DisplaySettings& displaySettings,
                              const std::vector<const renderengine::LayerSettings*>& layerSettings,
-                             ANativeWindowBuffer*, const bool, base::unique_fd&&,
+                             const sp<GraphicBuffer>&, const bool, base::unique_fd&&,
                              base::unique_fd*) -> status_t {
                     EXPECT_EQ(DEFAULT_DISPLAY_MAX_LUMINANCE, displaySettings.maxLuminance);
                     EXPECT_EQ(Rect(DEFAULT_DISPLAY_WIDTH, DEFAULT_DISPLAY_HEIGHT),
diff --git a/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp b/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp
index c2ddfce..2c7a281 100644
--- a/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayIdentificationTest.cpp
@@ -293,9 +293,9 @@
         ASSERT_TRUE(displayIdInfo);
         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
         const auto& info = *displayIdInfo->deviceProductInfo;
-        EXPECT_STREQ("", info.name.data());
+        EXPECT_EQ("", info.name);
         EXPECT_STREQ("SEC", info.manufacturerPnpId.data());
-        EXPECT_STREQ("12610", info.productId.data());
+        EXPECT_EQ("12610", info.productId);
         ASSERT_TRUE(std::holds_alternative<ManufactureYear>(info.manufactureOrModelDate));
         EXPECT_EQ(2011, std::get<ManufactureYear>(info.manufactureOrModelDate).year);
     }
@@ -304,9 +304,9 @@
         ASSERT_TRUE(displayIdInfo);
         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
         const auto& info = *displayIdInfo->deviceProductInfo;
-        EXPECT_STREQ("HP ZR30w", info.name.data());
+        EXPECT_EQ("HP ZR30w", info.name);
         EXPECT_STREQ("HWP", info.manufacturerPnpId.data());
-        EXPECT_STREQ("10348", info.productId.data());
+        EXPECT_EQ("10348", info.productId);
         ASSERT_TRUE(std::holds_alternative<ManufactureWeekAndYear>(info.manufactureOrModelDate));
         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2012, date.year);
@@ -317,9 +317,9 @@
         ASSERT_TRUE(displayIdInfo);
         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
         const auto& info = *displayIdInfo->deviceProductInfo;
-        EXPECT_STREQ("SAMSUNG", info.name.data());
+        EXPECT_EQ("SAMSUNG", info.name);
         EXPECT_STREQ("SAM", info.manufacturerPnpId.data());
-        EXPECT_STREQ("2302", info.productId.data());
+        EXPECT_EQ("2302", info.productId);
         ASSERT_TRUE(std::holds_alternative<ManufactureWeekAndYear>(info.manufactureOrModelDate));
         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2011, date.year);
@@ -330,9 +330,9 @@
         ASSERT_TRUE(displayIdInfo);
         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
         const auto& info = *displayIdInfo->deviceProductInfo;
-        EXPECT_STREQ("Panasonic-TV", info.name.data());
+        EXPECT_EQ("Panasonic-TV", info.name);
         EXPECT_STREQ("MEI", info.manufacturerPnpId.data());
-        EXPECT_STREQ("41622", info.productId.data());
+        EXPECT_EQ("41622", info.productId);
         ASSERT_TRUE(std::holds_alternative<ManufactureYear>(info.manufactureOrModelDate));
         const auto& date = std::get<ManufactureYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2019, date.year);
@@ -342,9 +342,9 @@
         ASSERT_TRUE(displayIdInfo);
         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
         const auto& info = *displayIdInfo->deviceProductInfo;
-        EXPECT_STREQ("Hisense", info.name.data());
+        EXPECT_EQ("Hisense", info.name);
         EXPECT_STREQ("HEC", info.manufacturerPnpId.data());
-        EXPECT_STREQ("0", info.productId.data());
+        EXPECT_EQ("0", info.productId);
         ASSERT_TRUE(std::holds_alternative<ManufactureWeekAndYear>(info.manufactureOrModelDate));
         const auto& date = std::get<ManufactureWeekAndYear>(info.manufactureOrModelDate);
         EXPECT_EQ(2019, date.year);
@@ -355,9 +355,9 @@
         ASSERT_TRUE(displayIdInfo);
         ASSERT_TRUE(displayIdInfo->deviceProductInfo);
         const auto& info = *displayIdInfo->deviceProductInfo;
-        EXPECT_STREQ("LP2361", info.name.data());
+        EXPECT_EQ("LP2361", info.name);
         EXPECT_STREQ("CTL", info.manufacturerPnpId.data());
-        EXPECT_STREQ("9373", info.productId.data());
+        EXPECT_EQ("9373", info.productId);
         ASSERT_TRUE(std::holds_alternative<ModelYear>(info.manufactureOrModelDate));
         EXPECT_EQ(2013, std::get<ModelYear>(info.manufactureOrModelDate).year);
     }
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 058c5cc..baca1df 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -316,9 +316,10 @@
 
     auto onMessageReceived(int32_t what) { return mFlinger->onMessageReceived(what); }
 
-    auto captureScreenImplLocked(
-            const RenderArea& renderArea, SurfaceFlinger::TraverseLayersFunction traverseLayers,
-            ANativeWindowBuffer* buffer, bool useIdentityTransform, bool forSystem, int* outSyncFd) {
+    auto captureScreenImplLocked(const RenderArea& renderArea,
+                                 SurfaceFlinger::TraverseLayersFunction traverseLayers,
+                                 const sp<GraphicBuffer>& buffer, bool useIdentityTransform,
+                                 bool forSystem, int* outSyncFd) {
         bool ignored;
         return mFlinger->captureScreenImplLocked(renderArea, traverseLayers, buffer,
                                                  useIdentityTransform, forSystem, outSyncFd,