Merge "Fix NPE for animate frozen snapshot" into sc-v2-dev (5cef72a6) · Commits · e / os / android_frameworks_base

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

+4 −0

Original line number	Diff line number	Diff line
		@@ -188,6 +188,10 @@ class SurfaceAnimator {
		mAnimation.startAnimation(mLeash, t, type, mInnerAnimationFinishedCallback);
		if (snapshotAnim != null) {
		mSnapshot = freezer.takeSnapshotForAnimation();
		if (mSnapshot == null) {
		Slog.e(TAG, "No snapshot target to start animation on for " + mAnimatable);
		return;
		}
		mSnapshot.startAnimation(t, snapshotAnim, type);
		}
		}

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

+31 −8

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import android.graphics.PixelFormat;
		import android.graphics.Point;
		import android.graphics.Rect;
		import android.hardware.HardwareBuffer;
		import android.util.Slog;
		import android.view.SurfaceControl;

		import com.android.internal.annotations.VisibleForTesting;
		@@ -49,8 +50,10 @@ import com.android.internal.protolog.common.ProtoLog;
		*/
		class SurfaceFreezer {

		private final Freezable mAnimatable;
		private final WindowManagerService mWmService;
		private static final String TAG = "SurfaceFreezer";

		private final @NonNull Freezable mAnimatable;
		private final @NonNull WindowManagerService mWmService;
		@VisibleForTesting
		SurfaceControl mLeash;
		Snapshot mSnapshot = null;
		@@ -59,7 +62,7 @@ class SurfaceFreezer {
		/**
		* @param animatable The object to animate.
		*/
		SurfaceFreezer(Freezable animatable, WindowManagerService service) {
		SurfaceFreezer(@NonNull Freezable animatable, @NonNull WindowManagerService service) {
		mAnimatable = animatable;
		mWmService = service;
		}
		@@ -86,11 +89,14 @@ class SurfaceFreezer {

		freezeTarget = freezeTarget != null ? freezeTarget : mAnimatable.getFreezeSnapshotTarget();
		if (freezeTarget != null) {
		SurfaceControl.ScreenshotHardwareBuffer screenshotBuffer = createSnapshotBuffer(
		SurfaceControl.ScreenshotHardwareBuffer screenshotBuffer = createSnapshotBufferInner(
		freezeTarget, startBounds);
		final HardwareBuffer buffer = screenshotBuffer == null ? null
		: screenshotBuffer.getHardwareBuffer();
		if (buffer == null \|\| buffer.getWidth() <= 1 \|\| buffer.getHeight() <= 1) {
		// This can happen when display is not ready.
		Slog.w(TAG, "Failed to capture screenshot for " + mAnimatable);
		unfreeze(t);
		return;
		}
		mSnapshot = new Snapshot(t, screenshotBuffer, mLeash);
		@@ -124,6 +130,11 @@ class SurfaceFreezer {
		* snapshot.
		*/
		void unfreeze(SurfaceControl.Transaction t) {
		unfreezeInner(t);
		mAnimatable.onUnfrozen();
		}

		private void unfreezeInner(SurfaceControl.Transaction t) {
		if (mSnapshot != null) {
		mSnapshot.cancelAnimation(t, false /* restarting */);
		mSnapshot = null;
		@@ -188,6 +199,18 @@ class SurfaceFreezer {
		return SurfaceControl.captureLayers(captureArgs);
		}

		@VisibleForTesting
		SurfaceControl.ScreenshotHardwareBuffer createSnapshotBufferInner(
		SurfaceControl target, Rect bounds) {
		return createSnapshotBuffer(target, bounds);
		}

		@VisibleForTesting
		GraphicBuffer createFromHardwareBufferInner(
		SurfaceControl.ScreenshotHardwareBuffer screenshotBuffer) {
		return GraphicBuffer.createFromHardwareBuffer(screenshotBuffer.getHardwareBuffer());
		}

		class Snapshot {
		private SurfaceControl mSurfaceControl;
		private AnimationAdapter mAnimation;
		@@ -198,10 +221,7 @@ class SurfaceFreezer {
		*/
		Snapshot(SurfaceControl.Transaction t,
		SurfaceControl.ScreenshotHardwareBuffer screenshotBuffer, SurfaceControl parent) {
		// We can't use a delegating constructor since we need to
		// reference this::onAnimationFinished
		GraphicBuffer graphicBuffer = GraphicBuffer.createFromHardwareBuffer(
		screenshotBuffer.getHardwareBuffer());
		GraphicBuffer graphicBuffer = createFromHardwareBufferInner(screenshotBuffer);

		mSurfaceControl = mAnimatable.makeAnimationLeash()
		.setName("snapshot anim: " + mAnimatable.toString())
		@@ -275,5 +295,8 @@ class SurfaceFreezer {
		* will be generated (but the rest of the freezing logic will still happen).
		*/
		@Nullable SurfaceControl getFreezeSnapshotTarget();

		/** Called when the {@link #unfreeze(SurfaceControl.Transaction)} is called. */
		void onUnfrozen();
		}
		}

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

+7 −4

Original line number	Diff line number	Diff line
		@@ -614,7 +614,6 @@ class WindowContainer<E extends WindowContainer> extends ConfigurationContainer<
		final DisplayContent dc = getDisplayContent();
		if (dc != null) {
		mSurfaceFreezer.unfreeze(getSyncTransaction());
		dc.mChangingContainers.remove(this);
		}
		while (!mChildren.isEmpty()) {
		final E child = mChildren.peekLast();
		@@ -1067,9 +1066,6 @@ class WindowContainer<E extends WindowContainer> extends ConfigurationContainer<
		// part of a change transition.
		if (!visible) {
		mSurfaceFreezer.unfreeze(getSyncTransaction());
		if (mDisplayContent != null) {
		mDisplayContent.mChangingContainers.remove(this);
		}
		}
		WindowContainer parent = getParent();
		if (parent != null) {
		@@ -2647,6 +2643,13 @@ class WindowContainer<E extends WindowContainer> extends ConfigurationContainer<
		return getSurfaceControl();
		}

		@Override
		public void onUnfrozen() {
		if (mDisplayContent != null) {
		mDisplayContent.mChangingContainers.remove(this);
		}
		}

		@Override
		public Builder makeAnimationLeash() {
		return makeSurface().setContainerLayer();

services/tests/wmtests/src/com/android/server/wm/AppTransitionTests.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -419,6 +419,7 @@ public class AppTransitionTests extends WindowTestsBase {
		task.getBounds(taskBounds);
		taskFragment.setBounds(0, 0, taskBounds.right / 2, taskBounds.bottom);
		spyOn(taskFragment);
		mockSurfaceFreezerSnapshot(taskFragment.mSurfaceFreezer);

		assertTrue(mDc.mChangingContainers.isEmpty());
		assertFalse(mDc.mAppTransition.isTransitionSet());

services/tests/wmtests/src/com/android/server/wm/TaskFragmentTest.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,7 @@ public class TaskFragmentTest extends WindowTestsBase {

		@Test
		public void testStartChangeTransition_resetSurface() {
		mockSurfaceFreezerSnapshot(mTaskFragment.mSurfaceFreezer);
		final Rect startBounds = new Rect(0, 0, 1000, 1000);
		final Rect endBounds = new Rect(500, 500, 1000, 1000);
		mTaskFragment.setBounds(startBounds);