Merge "InsetController: Release leashes from RenderThread" into rvc-dev

core/java/android/view/InsetsController.java

@@ -992,4 +992,23 @@ public class InsetsController implements WindowInsetsController, InsetsAnimation
         }
         return mViewRoot.mWindowAttributes.insetsFlags.behavior;
     }
+
+    /**
+     * At the time we receive new leashes (e.g. InsetsSourceConsumer is processing
+     * setControl) we need to release the old leash. But we may have already scheduled
+     * a SyncRtSurfaceTransaction applier to use it from the RenderThread. To avoid
+     * synchronization issues we also release from the RenderThread so this release
+     * happens after any existing items on the work queue.
+     */
+    public void releaseSurfaceControlFromRt(SurfaceControl sc) {
+        if (mViewRoot.mView != null && mViewRoot.mView.isHardwareAccelerated()) {
+            mViewRoot.registerRtFrameCallback(frame -> {
+                  sc.release();
+            });
+            // Make sure a frame gets scheduled.
+            mViewRoot.mView.invalidate();
+        } else {
+              sc.release();
+        }
+    }
 }

core/java/android/view/InsetsSourceConsumer.java

@@ -117,7 +117,7 @@ public class InsetsSourceConsumer {
             }
         }
         if (lastControl != null) {
-            lastControl.release();
+            lastControl.release(mController);
         }
     }
 

core/java/android/view/InsetsSourceControl.java

@@ -94,9 +94,9 @@ public class InsetsSourceControl implements Parcelable {
         dest.writeParcelable(mSurfacePosition, 0 /* flags*/);
     }
 
-    public void release() {
+    public void release(InsetsController controller) {
         if (mLeash != null) {
-            mLeash.release();
+            controller.releaseSurfaceControlFromRt(mLeash);
         }
     }