Merge "Set the new SurfaceControl opaque flag." into klp-modular-dev

services/core/java/com/android/server/am/ActivityStack.java

@@ -1233,8 +1233,9 @@ final class ActivityStack {
             mUndrawnActivitiesBelowTopTranslucent.clear();
             mHandler.removeMessages(TRANSLUCENT_TIMEOUT_MSG);
 
-            if (waitingActivity != null && waitingActivity.app != null &&
+            if (waitingActivity != null) {
-                    waitingActivity.app.thread != null) {
+                mWindowManager.setWindowOpaque(waitingActivity.appToken, false);
+                if (waitingActivity.app != null && waitingActivity.app.thread != null) {
                     try {
                         waitingActivity.app.thread.scheduleTranslucentConversionComplete(
                                 waitingActivity.appToken, r != null);
@@ -1243,6 +1244,7 @@ final class ActivityStack {
                 }
             }
         }
+    }
 
     /**
      * Ensure that the top activity in the stack is resumed.

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

@@ -4200,10 +4200,25 @@ public class WindowManagerService extends IWindowManager.Stub
         AppWindowToken atoken = findAppWindowToken(token);
         if (atoken != null) {
             atoken.appFullscreen = toOpaque;
+            // When making translucent, wait until windows below have been drawn.
+            if (toOpaque) {
+                // Making opaque so do it now.
+                setWindowOpaque(token, true);
+            }
             requestTraversal();
         }
     }
 
+    public void setWindowOpaque(IBinder token, boolean isOpaque) {
+        AppWindowToken wtoken = findAppWindowToken(token);
+        if (wtoken != null) {
+            WindowState win = wtoken.findMainWindow();
+            if (win != null) {
+                win.mWinAnimator.setOpaque(isOpaque);
+            }
+        }
+    }
+
     boolean setTokenVisibilityLocked(AppWindowToken wtoken, WindowManager.LayoutParams lp,
             boolean visible, int transit, boolean performLayout) {
         boolean delayed = false;

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

@@ -490,6 +490,7 @@ class WindowStateAnimator {
         private final Rect mWindowCrop = new Rect();
         private boolean mShown = false;
         private int mLayerStack;
+        private boolean mIsOpaque;
         private final String mName;
 
         public SurfaceTrace(SurfaceSession s,
@@ -574,6 +575,16 @@ class WindowStateAnimator {
             super.setLayerStack(layerStack);
         }
 
+        @Override
+        public void setOpaque(boolean isOpaque) {
+            if (isOpaque != mIsOpaque) {
+                Slog.v(SURFACE_TAG, "setOpaque(" + isOpaque + "): OLD:" + this
+                        + ". Called by " + Debug.getCallers(3));
+                mIsOpaque = isOpaque;
+            }
+            super.setOpaque(isOpaque);
+        }
+
         @Override
         public void hide() {
             if (mShown) {
@@ -620,7 +631,8 @@ class WindowStateAnimator {
                     + mName + " (" + mLayerStack + "): shown=" + mShown + " layer=" + mLayer
                     + " alpha=" + mSurfaceTraceAlpha + " " + mPosition.x + "," + mPosition.y
                     + " " + mSize.x + "x" + mSize.y
-                    + " crop=" + mWindowCrop.toShortString();
+                    + " crop=" + mWindowCrop.toShortString()
+                    + " opaque=" + mIsOpaque;
         }
     }
 
@@ -1337,8 +1349,7 @@ class WindowStateAnimator {
             Slog.w(TAG, "setTransparentRegionHint: null mSurface after mHasSurface true");
             return;
         }
-        if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
+        if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG, ">>> OPEN TRANSACTION setTransparentRegion");
-            ">>> OPEN TRANSACTION setTransparentRegion");
         SurfaceControl.openTransaction();
         try {
             if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin,
@@ -1364,8 +1375,7 @@ class WindowStateAnimator {
                 // transformation is being applied by the animation.
                 return;
             }
-            if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
+            if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG, ">>> OPEN TRANSACTION setWallpaperOffset");
-                    ">>> OPEN TRANSACTION setWallpaperOffset");
             SurfaceControl.openTransaction();
             try {
                 if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin,
@@ -1383,6 +1393,22 @@ class WindowStateAnimator {
         }
     }
 
+    void setOpaque(boolean isOpaque) {
+        if (mSurfaceControl == null) {
+            return;
+        }
+        if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG, ">>> OPEN TRANSACTION setOpaque");
+        SurfaceControl.openTransaction();
+        try {
+            if (SHOW_TRANSACTIONS) WindowManagerService.logSurface(mWin, "isOpaque=" + isOpaque,
+                    null);
+            mSurfaceControl.setOpaque(isOpaque);
+        } finally {
+            SurfaceControl.closeTransaction();
+            if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG, "<<< CLOSE TRANSACTION setOpaque");
+        }
+    }
+
     // This must be called while inside a transaction.
     boolean performShowLocked() {
         if (mWin.isHiddenFromUserLocked()) {