Merge "Use current rotation for snapshot of canceling fixed rotation" into sc-dev am: c63b6d1b2a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14640274

Change-Id: Ibf7d46ce2b57174ad3a7e53ec1f8b7f582c87094

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

@@ -4213,6 +4213,7 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
 
     void clearAllDrawn() {
         allDrawn = false;
+        mLastAllDrawn = false;
     }
 
     /**

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

@@ -253,7 +253,16 @@ class ScreenRotationAnimation {
 
         ProtoLog.i(WM_SHOW_SURFACE_ALLOC,
                 "  FREEZE %s: CREATE", mScreenshotLayer);
-        setRotation(t, realOriginalRotation);
+        if (originalRotation == realOriginalRotation) {
+            setRotation(t, realOriginalRotation);
+        } else {
+            // If the given original rotation is different from real original display rotation,
+            // this is playing non-zero degree rotation animation without display rotation change,
+            // so the snapshot doesn't need to be transformed.
+            mCurRotation = realOriginalRotation;
+            mSnapshotInitialMatrix.reset();
+            setRotationTransform(t, mSnapshotInitialMatrix);
+        }
         t.apply();
     }