Merge "Take snapshot directly during change transition" into qt-dev (841ef9cd) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/AppWindowToken.java

+7 −11

Original line number	Diff line number	Diff line
		@@ -1733,17 +1733,13 @@ class AppWindowToken extends WindowToken implements WindowManagerService.AppFree
		return;
		}

		if (mThumbnail == null && getTask() != null) {
		final TaskSnapshotController snapshotCtrl = mWmService.mTaskSnapshotController;
		final ArraySet<Task> tasks = new ArraySet<>();
		tasks.add(getTask());
		snapshotCtrl.snapshotTasks(tasks);
		snapshotCtrl.addSkipClosingAppSnapshotTasks(tasks);
		final ActivityManager.TaskSnapshot snapshot = snapshotCtrl.getSnapshot(
		getTask().mTaskId, getTask().mUserId, false /* restoreFromDisk */,
		false /* reducedResolution */);
		Task task = getTask();
		if (mThumbnail == null && task != null && !hasCommittedReparentToAnimationLeash()) {
		SurfaceControl.ScreenshotGraphicBuffer snapshot =
		mWmService.mTaskSnapshotController.createTaskSnapshot(
		task, 1 /* scaleFraction */);
		if (snapshot != null) {
		mThumbnail = new AppWindowThumbnail(t, this, snapshot.getSnapshot(),
		mThumbnail = new AppWindowThumbnail(t, this, snapshot.getGraphicBuffer(),
		true /* relative */);
		}
		}
		@@ -2858,7 +2854,7 @@ class AppWindowToken extends WindowToken implements WindowManagerService.AppFree
		}
		}
		t.hide(mTransitChangeLeash);
		t.reparent(mTransitChangeLeash, null);
		t.remove(mTransitChangeLeash);
		mTransitChangeLeash = null;
		if (cancel) {
		onAnimationLeashLost(t);

services/core/java/com/android/server/wm/TaskSnapshotController.java

+27 −13

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_SCREENSHOT;
		import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
		import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.app.ActivityManager;
		import android.app.ActivityManager.TaskSnapshot;
		@@ -241,16 +242,32 @@ class TaskSnapshotController {
		return null;
		}

		@Nullable private TaskSnapshot snapshotTask(Task task) {
		if (!mService.mPolicy.isScreenOn()) {
		@Nullable
		SurfaceControl.ScreenshotGraphicBuffer createTaskSnapshot(@NonNull Task task,
		float scaleFraction) {
		if (task.getSurfaceControl() == null) {
		if (DEBUG_SCREENSHOT) {
		Slog.i(TAG_WM, "Attempted to take screenshot while display was off.");
		Slog.w(TAG_WM, "Failed to take screenshot. No surface control for " + task);
		}
		return null;
		}
		if (task.getSurfaceControl() == null) {
		task.getBounds(mTmpRect);
		mTmpRect.offsetTo(0, 0);
		final SurfaceControl.ScreenshotGraphicBuffer screenshotBuffer =
		SurfaceControl.captureLayers(
		task.getSurfaceControl().getHandle(), mTmpRect, scaleFraction);
		final GraphicBuffer buffer = screenshotBuffer != null ? screenshotBuffer.getGraphicBuffer()
		: null;
		if (buffer == null \|\| buffer.getWidth() <= 1 \|\| buffer.getHeight() <= 1) {
		return null;
		}
		return screenshotBuffer;
		}

		@Nullable private TaskSnapshot snapshotTask(Task task) {
		if (!mService.mPolicy.isScreenOn()) {
		if (DEBUG_SCREENSHOT) {
		Slog.w(TAG_WM, "Failed to take screenshot. No surface control for " + task);
		Slog.i(TAG_WM, "Attempted to take screenshot while display was off.");
		}
		return null;
		}
		@@ -271,8 +288,6 @@ class TaskSnapshotController {

		final boolean isLowRamDevice = ActivityManager.isLowRamDeviceStatic();
		final float scaleFraction = isLowRamDevice ? mPersister.getReducedScale() : 1f;
		task.getBounds(mTmpRect);
		mTmpRect.offsetTo(0, 0);

		final WindowState mainWindow = appWindowToken.findMainWindow();
		if (mainWindow == null) {
		@@ -280,18 +295,17 @@ class TaskSnapshotController {
		return null;
		}
		final SurfaceControl.ScreenshotGraphicBuffer screenshotBuffer =
		SurfaceControl.captureLayers(
		task.getSurfaceControl().getHandle(), mTmpRect, scaleFraction);
		final GraphicBuffer buffer = screenshotBuffer != null ? screenshotBuffer.getGraphicBuffer()
		: null;
		if (buffer == null \|\| buffer.getWidth() <= 1 \|\| buffer.getHeight() <= 1) {
		createTaskSnapshot(task, scaleFraction);

		if (screenshotBuffer == null) {
		if (DEBUG_SCREENSHOT) {
		Slog.w(TAG_WM, "Failed to take screenshot for " + task);
		}
		return null;
		}
		final boolean isWindowTranslucent = mainWindow.getAttrs().format != PixelFormat.OPAQUE;
		return new TaskSnapshot(appWindowToken.mActivityComponent, buffer,
		return new TaskSnapshot(
		appWindowToken.mActivityComponent, screenshotBuffer.getGraphicBuffer(),
		screenshotBuffer.getColorSpace(), appWindowToken.getConfiguration().orientation,
		getInsets(mainWindow), isLowRamDevice /* reduced /, scaleFraction / scale */,
		true /* isRealSnapshot */, task.getWindowingMode(), getSystemUiVisibility(task),