Merge "SurfaceView: Make surfaceRedrawNeededAsync work with WM bypass." into oc-dev am: 76d779374a (1382077c) · Commits · e / os / android_frameworks_base

core/java/android/view/SurfaceView.java

+24 −1

Original line number	Diff line number	Diff line
		@@ -137,7 +137,10 @@ public class SurfaceView extends View {
		} break;
		case DRAW_FINISHED_MSG: {
		mDrawFinished = true;
		if (mAttachedToWindow) {
		notifyDrawFinished();
		invalidate();
		}
		} break;
		}
		}
		@@ -188,9 +191,12 @@ public class SurfaceView extends View {
		private Translator mTranslator;

		private boolean mGlobalListenersAdded;
		private boolean mAttachedToWindow;

		private int mSurfaceFlags = SurfaceControl.HIDDEN;

		private int mPendingReportDraws;

		public SurfaceView(Context context) {
		this(context, null);
		}
		@@ -227,6 +233,7 @@ public class SurfaceView extends View {
		mViewVisibility = getVisibility() == VISIBLE;
		mRequestedVisible = mViewVisibility && mWindowVisibility;

		mAttachedToWindow = true;
		if (!mGlobalListenersAdded) {
		ViewTreeObserver observer = getViewTreeObserver();
		observer.addOnScrollChangedListener(mScrollChangedListener);
		@@ -261,8 +268,17 @@ public class SurfaceView extends View {
		updateSurface();
		}

		void notifyDrawFinished() {
		ViewRootImpl viewRoot = getViewRootImpl();
		if (viewRoot != null) {
		viewRoot.pendingDrawFinished();
		}
		mPendingReportDraws--;
		}

		@Override
		protected void onDetachedFromWindow() {
		mAttachedToWindow = false;
		if (mGlobalListenersAdded) {
		ViewTreeObserver observer = getViewTreeObserver();
		observer.removeOnScrollChangedListener(mScrollChangedListener);
		@@ -270,6 +286,10 @@ public class SurfaceView extends View {
		mGlobalListenersAdded = false;
		}

		while (mPendingReportDraws > 0) {
		notifyDrawFinished();
		}

		mRequestedVisible = false;

		updateSurface();
		@@ -618,6 +638,9 @@ public class SurfaceView extends View {
		if (callbacks == null) {
		callbacks = getSurfaceCallbacks();
		}

		mPendingReportDraws++;
		viewRoot.drawPending();
		SurfaceCallbackHelper sch =
		new SurfaceCallbackHelper(this::onDrawFinished);
		sch.dispatchSurfaceRedrawNeededAsync(mSurfaceHolder, callbacks);

core/java/android/view/ViewRootImpl.java

+41 −6

Original line number	Diff line number	Diff line
		@@ -2704,8 +2704,40 @@ public final class ViewRootImpl implements ViewParent,
		}
		}

		private void onDrawFinished() {
		/**
		* A count of the number of calls to pendingDrawFinished we
		* require to notify the WM drawing is complete.
		*
		* This starts at 1, for the ViewRootImpl surface itself.
		* Subsurfaces may debt the value with drawPending.
		*/
		int mDrawsNeededToReport = 1;

		/**
		* Delay notifying WM of draw finished until
		* a balanced call to pendingDrawFinished.
		*/
		void drawPending() {
		mDrawsNeededToReport++;
		}

		void pendingDrawFinished() {
		if (mDrawsNeededToReport == 0) {
		throw new RuntimeException("Unbalanced drawPending/pendingDrawFinished calls");
		}
		mDrawsNeededToReport--;
		if (mDrawsNeededToReport == 0) {
		reportDrawFinished();
		}
		}

		private void postDrawFinished() {
		mHandler.sendEmptyMessage(MSG_DRAW_FINISHED);
		}

		private void reportDrawFinished() {
		try {
		mDrawsNeededToReport = 1;
		mWindowSession.finishDrawing(mWindow);
		} catch (RemoteException e) {
		// Have fun!
		@@ -2762,15 +2794,12 @@ public final class ViewRootImpl implements ViewParent,
		}

		if (mSurfaceHolder != null && mSurface.isValid()) {
		SurfaceCallbackHelper sch = new SurfaceCallbackHelper(this::onDrawFinished);
		SurfaceCallbackHelper sch = new SurfaceCallbackHelper(this::postDrawFinished);
		SurfaceHolder.Callback callbacks[] = mSurfaceHolder.getCallbacks();

		sch.dispatchSurfaceRedrawNeededAsync(mSurfaceHolder, callbacks);
		} else {
		try {
		mWindowSession.finishDrawing(mWindow);
		} catch (RemoteException e) {
		}
		pendingDrawFinished();
		}
		}
		}
		@@ -3576,6 +3605,7 @@ public final class ViewRootImpl implements ViewParent,
		private final static int MSG_REQUEST_KEYBOARD_SHORTCUTS = 26;
		private final static int MSG_UPDATE_POINTER_ICON = 27;
		private final static int MSG_POINTER_CAPTURE_CHANGED = 28;
		private final static int MSG_DRAW_FINISHED = 29;

		final class ViewRootHandler extends Handler {
		@Override
		@@ -3627,6 +3657,8 @@ public final class ViewRootImpl implements ViewParent,
		return "MSG_UPDATE_POINTER_ICON";
		case MSG_POINTER_CAPTURE_CHANGED:
		return "MSG_POINTER_CAPTURE_CHANGED";
		case MSG_DRAW_FINISHED:
		return "MSG_DRAW_FINISHED";
		}
		return super.getMessageName(message);
		}
		@@ -3902,6 +3934,9 @@ public final class ViewRootImpl implements ViewParent,
		final boolean hasCapture = msg.arg1 != 0;
		handlePointerCaptureChanged(hasCapture);
		} break;
		case MSG_DRAW_FINISHED: {
		pendingDrawFinished();
		} break;
		}
		}
		}