Merge tag 'android-13.0.0_r16' into t13.0

Android 13.0.0 Release 16 (TQ1A.221205.011)

Also included the following reverts:
   1. Revert "fw/b: Import Wi-Fi standard icon [1/2]"
   2. Revert "Add preference for toggling the wallpaper zooming animation"

Co-authored-by: Semavi Ulusoy <doc.divxm@gmail.com>
Change-Id: I9a6b51e452c28d10411712c59778bb54da5783e9

1 files changed, 225 insertions, 91 deletions

diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index ce7cf192725c..07a2504335a4 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -60,13 +60,11 @@ import static android.view.WindowInsetsController.BEHAVIOR_DEFAULT;
 import static android.view.WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE;
 import static android.view.WindowLayout.UNSPECIFIED_LENGTH;
 import static android.view.WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW;
-import static android.view.WindowManager.LayoutParams.FIRST_SUB_WINDOW;
 import static android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN;
 import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
 import static android.view.WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
 import static android.view.WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
 import static android.view.WindowManager.LayoutParams.LAST_APPLICATION_WINDOW;
-import static android.view.WindowManager.LayoutParams.LAST_SUB_WINDOW;
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_APPEARANCE_CONTROLLED;
@@ -77,13 +75,13 @@ import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_INSET_PARENT_
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_LAYOUT_SIZE_EXTENDED_BY_CUTOUT;
 import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
 import static android.view.WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
-import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
 import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD;
 import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_ADDITIONAL;
 import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
 import static android.view.WindowManager.LayoutParams.TYPE_TOAST;
 import static android.view.WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY;
+import static android.view.WindowManagerGlobal.RELAYOUT_RES_CANCEL_AND_REDRAW;
 import static android.view.WindowManagerGlobal.RELAYOUT_RES_CONSUME_ALWAYS_SYSTEM_BARS;
 import static android.view.WindowManagerGlobal.RELAYOUT_RES_SURFACE_CHANGED;
 import static android.view.inputmethod.InputMethodEditorTraceProto.InputMethodClientsTraceProto.ClientSideProto.IME_FOCUS_CONTROLLER;
@@ -279,7 +277,7 @@ public final class ViewRootImpl implements ViewParent,
      * @hide
      */
     public static final boolean CAPTION_ON_SHELL =
-            SystemProperties.getBoolean("persist.debug.caption_on_shell", false);
+            SystemProperties.getBoolean("persist.wm.debug.caption_on_shell", false);
 
     /**
      * Whether the client should compute the window frame on its own.
@@ -564,9 +562,7 @@ public final class ViewRootImpl implements ViewParent,
     private final Rect mVisRect = new Rect(); // used to retrieve visible rect of focused view.
     private final Rect mTempRect = new Rect();
 
-    private final WindowLayout mWindowLayout = new WindowLayout();
-
-    private ViewRootImpl mParentViewRoot;
+    private final WindowLayout mWindowLayout;
 
     // This is used to reduce the race between window focus changes being dispatched from
     // the window manager and input events coming through the input system.
@@ -591,8 +587,21 @@ public final class ViewRootImpl implements ViewParent,
     int mContentCaptureEnabled = CONTENT_CAPTURE_ENABLED_NOT_CHECKED;
     boolean mPerformContentCapture;
 
-
     boolean mReportNextDraw;
+    /** Set only while mReportNextDraw=true, indicating the last reason that was triggered */
+    String mLastReportNextDrawReason;
+    /** The reaason the last call to performDraw() returned false */
+    String mLastPerformDrawSkippedReason;
+    /** The reason the last call to performTraversals() returned without drawing */
+    String mLastPerformTraversalsSkipDrawReason;
+    /** The state of the local sync, if one is in progress. Can be one of the states below. */
+    int mLocalSyncState;
+
+    // The possible states of the local sync, see createSyncIfNeeded()
+    private final int LOCAL_SYNC_NONE = 0;
+    private final int LOCAL_SYNC_PENDING = 1;
+    private final int LOCAL_SYNC_RETURNED = 2;
+    private final int LOCAL_SYNC_MERGED = 3;
 
     /**
      * Set whether the draw should send the buffer to system server. When set to true, VRI will
@@ -601,9 +610,20 @@ public final class ViewRootImpl implements ViewParent,
      */
     private boolean mSyncBuffer = false;
 
+    /**
+     * Flag to determine whether the client needs to check with WMS if it can draw. WMS will notify
+     * the client that it can't draw if we're still in the middle of a sync set that includes this
+     * window. Once the sync is complete, the window can resume drawing. This is to ensure we don't
+     * deadlock the client by trying to request draws when there may not be any buffers available.
+     */
+    private boolean mCheckIfCanDraw = false;
+
+    private boolean mDrewOnceForSync = false;
+
     int mSyncSeqId = 0;
     int mLastSyncSeqId = 0;
 
+    private boolean mUpdateSurfaceNeeded;
     boolean mFullRedrawNeeded;
     boolean mNewSurfaceNeeded;
     boolean mForceNextWindowRelayout;
@@ -687,8 +707,12 @@ public final class ViewRootImpl implements ViewParent,
     final Rect mPendingBackDropFrame = new Rect();
 
     boolean mPendingAlwaysConsumeSystemBars;
+    private int mRelayoutSeq;
+    private final Rect mWinFrameInScreen = new Rect();
     private final InsetsState mTempInsets = new InsetsState();
     private final InsetsSourceControl[] mTempControls = new InsetsSourceControl[SIZE];
+    private final WindowConfiguration mTempWinConfig = new WindowConfiguration();
+    private float mInvSizeCompatScale = 1f;
     final ViewTreeObserver.InternalInsetsInfo mLastGivenInsets
             = new ViewTreeObserver.InternalInsetsInfo();
 
@@ -881,18 +905,14 @@ public final class ViewRootImpl implements ViewParent,
     private String mTag = TAG;
 
     public ViewRootImpl(Context context, Display display) {
-        this(context, display, WindowManagerGlobal.getWindowSession(),
-                false /* useSfChoreographer */);
-    }
-
-    public ViewRootImpl(@UiContext Context context, Display display, IWindowSession session) {
-        this(context, display, session, false /* useSfChoreographer */);
+        this(context, display, WindowManagerGlobal.getWindowSession(), new WindowLayout());
     }
 
     public ViewRootImpl(@UiContext Context context, Display display, IWindowSession session,
-            boolean useSfChoreographer) {
+            WindowLayout windowLayout) {
         mContext = context;
         mWindowSession = session;
+        mWindowLayout = windowLayout;
         mDisplay = display;
         mBasePackageName = context.getBasePackageName();
         mThread = Thread.currentThread();
@@ -921,8 +941,7 @@ public final class ViewRootImpl implements ViewParent,
         mNoncompatDensity = context.getResources().getDisplayMetrics().noncompatDensityDpi;
         mFallbackEventHandler = new PhoneFallbackEventHandler(context);
         // TODO(b/222696368): remove getSfInstance usage and use vsyncId for transactions
-        mChoreographer = useSfChoreographer
-                ? Choreographer.getSfInstance() : Choreographer.getInstance();
+        mChoreographer = Choreographer.getInstance();
         mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE);
         mInsetsController = new InsetsController(new ViewRootInsetsControllerHost(this));
         mHandwritingInitiator = new HandwritingInitiator(mViewConfiguration,
@@ -1086,6 +1105,16 @@ public final class ViewRootImpl implements ViewParent,
         return mContext.getResources().getConfiguration();
     }
 
+    private WindowConfiguration getCompatWindowConfiguration() {
+        final WindowConfiguration winConfig = getConfiguration().windowConfiguration;
+        if (mInvSizeCompatScale == 1f) {
+            return winConfig;
+        }
+        mTempWinConfig.setTo(winConfig);
+        mTempWinConfig.scale(mInvSizeCompatScale);
+        return mTempWinConfig;
+    }
+
     /**
      * We have one child
      */
@@ -1184,7 +1213,6 @@ public final class ViewRootImpl implements ViewParent,
                 if (panelParentView != null) {
                     mAttachInfo.mPanelParentWindowToken
                             = panelParentView.getApplicationWindowToken();
-                    mParentViewRoot = panelParentView.getViewRootImpl();
                 }
                 mAdded = true;
                 int res; /* = WindowManagerImpl.ADD_OKAY; */
@@ -1215,14 +1243,24 @@ public final class ViewRootImpl implements ViewParent,
                     collectViewAttributes();
                     adjustLayoutParamsForCompatibility(mWindowAttributes);
                     controlInsetsForCompatibility(mWindowAttributes);
+
+                    Rect attachedFrame = new Rect();
+                    final float[] sizeCompatScale = { 1f };
                     res = mWindowSession.addToDisplayAsUser(mWindow, mWindowAttributes,
                             getHostVisibility(), mDisplay.getDisplayId(), userId,
                             mInsetsController.getRequestedVisibilities(), inputChannel, mTempInsets,
-                            mTempControls);
+                            mTempControls, attachedFrame, sizeCompatScale);
+                    if (!attachedFrame.isValid()) {
+                        attachedFrame = null;
+                    }
                     if (mTranslator != null) {
                         mTranslator.translateInsetsStateInScreenToAppWindow(mTempInsets);
                         mTranslator.translateSourceControlsInScreenToAppWindow(mTempControls);
+                        mTranslator.translateRectInScreenToAppWindow(attachedFrame);
                     }
+                    mTmpFrames.attachedFrame = attachedFrame;
+                    mTmpFrames.sizeCompatScale = sizeCompatScale[0];
+                    mInvSizeCompatScale = 1f / sizeCompatScale[0];
                 } catch (RemoteException e) {
                     mAdded = false;
                     mView = null;
@@ -1245,12 +1283,12 @@ public final class ViewRootImpl implements ViewParent,
                 final InsetsState state = mInsetsController.getState();
                 final Rect displayCutoutSafe = mTempRect;
                 state.getDisplayCutoutSafe(displayCutoutSafe);
-                final WindowConfiguration winConfig = getConfiguration().windowConfiguration;
+                final WindowConfiguration winConfig = getCompatWindowConfiguration();
                 mWindowLayout.computeFrames(mWindowAttributes, state,
                         displayCutoutSafe, winConfig.getBounds(), winConfig.getWindowingMode(),
                         UNSPECIFIED_LENGTH, UNSPECIFIED_LENGTH,
-                        mInsetsController.getRequestedVisibilities(),
-                        getAttachedWindowFrame(), 1f /* compactScale */, mTmpFrames);
+                        mInsetsController.getRequestedVisibilities(), 1f /* compactScale */,
+                        mTmpFrames);
                 setFrame(mTmpFrames.frame);
                 registerBackCallbackOnWindow();
                 if (!WindowOnBackInvokedDispatcher.isOnBackInvokedCallbackEnabled(mContext)) {
@@ -1368,14 +1406,6 @@ public final class ViewRootImpl implements ViewParent,
         }
     }
 
-    private Rect getAttachedWindowFrame() {
-        final int type = mWindowAttributes.type;
-        final boolean layoutAttached = (mParentViewRoot != null
-                && type >= FIRST_SUB_WINDOW && type <= LAST_SUB_WINDOW
-                && type != TYPE_APPLICATION_ATTACHED_DIALOG);
-        return layoutAttached ? mParentViewRoot.mWinFrame : null;
-    }
-
     /**
      * Register any kind of listeners if setView was success.
      */
@@ -1733,21 +1763,30 @@ public final class ViewRootImpl implements ViewParent,
 
         final Rect frame = frames.frame;
         final Rect displayFrame = frames.displayFrame;
+        final Rect attachedFrame = frames.attachedFrame;
         if (mTranslator != null) {
             mTranslator.translateRectInScreenToAppWindow(frame);
             mTranslator.translateRectInScreenToAppWindow(displayFrame);
+            mTranslator.translateRectInScreenToAppWindow(attachedFrame);
         }
+        final float sizeCompatScale = frames.sizeCompatScale;
         final boolean frameChanged = !mWinFrame.equals(frame);
         final boolean configChanged = !mLastReportedMergedConfiguration.equals(mergedConfiguration);
+        final boolean attachedFrameChanged = LOCAL_LAYOUT
+                && !Objects.equals(mTmpFrames.attachedFrame, attachedFrame);
         final boolean displayChanged = mDisplay.getDisplayId() != displayId;
         final boolean resizeModeChanged = mResizeMode != resizeMode;
-        if (msg == MSG_RESIZED && !frameChanged && !configChanged && !displayChanged
-                && !resizeModeChanged && !forceNextWindowRelayout) {
+        final boolean sizeCompatScaleChanged = mTmpFrames.sizeCompatScale != sizeCompatScale;
+        if (msg == MSG_RESIZED && !frameChanged && !configChanged && !attachedFrameChanged
+                && !displayChanged && !resizeModeChanged && !forceNextWindowRelayout
+                && !sizeCompatScaleChanged) {
             return;
         }
 
         mPendingDragResizing = resizeMode != RESIZE_MODE_INVALID;
         mResizeMode = resizeMode;
+        mTmpFrames.sizeCompatScale = sizeCompatScale;
+        mInvSizeCompatScale = 1f / sizeCompatScale;
 
         if (configChanged) {
             // If configuration changed - notify about that and, maybe, about move to display.
@@ -1760,6 +1799,9 @@ public final class ViewRootImpl implements ViewParent,
 
         setFrame(frame);
         mTmpFrames.displayFrame.set(displayFrame);
+        if (mTmpFrames.attachedFrame != null && attachedFrame != null) {
+            mTmpFrames.attachedFrame.set(attachedFrame);
+        }
 
         if (mDragResizing && mUseMTRenderer) {
             boolean fullscreen = frame.equals(mPendingBackDropFrame);
@@ -1769,12 +1811,12 @@ public final class ViewRootImpl implements ViewParent,
             }
         }
 
-        mForceNextWindowRelayout = forceNextWindowRelayout;
+        mForceNextWindowRelayout |= forceNextWindowRelayout;
         mPendingAlwaysConsumeSystemBars = args.argi2 != 0;
         mSyncSeqId = args.argi4 > mSyncSeqId ? args.argi4 : mSyncSeqId;
 
         if (msg == MSG_RESIZED_REPORT) {
-            reportNextDraw();
+            reportNextDraw("resized");
         }
 
         if (mView != null && (frameChanged || configChanged)) {
@@ -2679,6 +2721,8 @@ public final class ViewRootImpl implements ViewParent,
     }
 
     private void performTraversals() {
+        mLastPerformTraversalsSkipDrawReason = null;
+
         // cache mView since it is used so much below...
         final View host = mView;
         if (DBG) {
@@ -2688,11 +2732,16 @@ public final class ViewRootImpl implements ViewParent,
         }
 
         if (host == null || !mAdded) {
+            mLastPerformTraversalsSkipDrawReason = host == null ? "no_host" : "not_added";
             return;
         }
 
         mIsInTraversal = true;
         mWillDrawSoon = true;
+        boolean cancelDraw = false;
+        String cancelReason = null;
+        boolean isSyncRequest = false;
+
         boolean windowSizeMayChange = false;
         WindowManager.LayoutParams lp = mWindowAttributes;
 
@@ -2781,6 +2830,7 @@ public final class ViewRootImpl implements ViewParent,
         if (viewVisibilityChanged) {
             mAttachInfo.mWindowVisibility = viewVisibility;
             host.dispatchWindowVisibilityChanged(viewVisibility);
+            mAttachInfo.mTreeObserver.dispatchOnWindowVisibilityChange(viewVisibility);
             if (viewUserVisibilityChanged) {
                 host.dispatchVisibilityAggregated(viewVisibility == View.VISIBLE);
             }
@@ -2907,7 +2957,6 @@ public final class ViewRootImpl implements ViewParent,
         final int surfaceGenerationId = mSurface.getGenerationId();
 
         final boolean isViewVisible = viewVisibility == View.VISIBLE;
-        final boolean windowRelayoutWasForced = mForceNextWindowRelayout;
         boolean surfaceSizeChanged = false;
         boolean surfaceCreated = false;
         boolean surfaceDestroyed = false;
@@ -2971,14 +3020,21 @@ public final class ViewRootImpl implements ViewParent,
                     mViewFrameInfo.flags |= FrameInfo.FLAG_WINDOW_VISIBILITY_CHANGED;
                 }
                 relayoutResult = relayoutWindow(params, viewVisibility, insetsPending);
+                cancelDraw = (relayoutResult & RELAYOUT_RES_CANCEL_AND_REDRAW)
+                        == RELAYOUT_RES_CANCEL_AND_REDRAW;
+                cancelReason = "relayout";
                 final boolean dragResizing = mPendingDragResizing;
                 if (mSyncSeqId > mLastSyncSeqId) {
                     mLastSyncSeqId = mSyncSeqId;
                     if (DEBUG_BLAST) {
                         Log.d(mTag, "Relayout called with blastSync");
                     }
-                    reportNextDraw();
+                    reportNextDraw("relayout");
                     mSyncBuffer = true;
+                    isSyncRequest = true;
+                    if (!cancelDraw) {
+                        mDrewOnceForSync = false;
+                    }
                 }
 
                 final boolean surfaceControlChanged =
@@ -3004,13 +3060,16 @@ public final class ViewRootImpl implements ViewParent,
                 // WindowManagerService has reported back a frame from a configuration not yet
                 // handled by the client. In this case, we need to accept the configuration so we
                 // do not lay out and draw with the wrong configuration.
-                if (!mPendingMergedConfiguration.equals(mLastReportedMergedConfiguration)) {
+                if (mRelayoutRequested
+                        && !mPendingMergedConfiguration.equals(mLastReportedMergedConfiguration)) {
                     if (DEBUG_CONFIGURATION) Log.v(mTag, "Visible with new config: "
                             + mPendingMergedConfiguration.getMergedConfiguration());
                     performConfigurationChange(new MergedConfiguration(mPendingMergedConfiguration),
                             !mFirst, INVALID_DISPLAY /* same display */);
                     updatedConfiguration = true;
                 }
+                final boolean updateSurfaceNeeded = mUpdateSurfaceNeeded;
+                mUpdateSurfaceNeeded = false;
 
                 surfaceSizeChanged = false;
                 if (!mLastSurfaceSize.equals(mSurfaceSize)) {
@@ -3069,6 +3128,7 @@ public final class ViewRootImpl implements ViewParent,
                             }
                         } catch (OutOfResourcesException e) {
                             handleOutOfResourcesException(e);
+                            mLastPerformTraversalsSkipDrawReason = "oom_initialize_renderer";
                             return;
                         }
                     }
@@ -3089,8 +3149,7 @@ public final class ViewRootImpl implements ViewParent,
                     if (isHardwareEnabled()) {
                         mAttachInfo.mThreadedRenderer.destroy();
                     }
-                } else if ((surfaceReplaced
-                        || surfaceSizeChanged || windowRelayoutWasForced)
+                } else if ((surfaceReplaced || surfaceSizeChanged || updateSurfaceNeeded)
                         && mSurfaceHolder == null
                         && mAttachInfo.mThreadedRenderer != null
                         && mSurface.isValid()) {
@@ -3107,6 +3166,7 @@ public final class ViewRootImpl implements ViewParent,
                         mAttachInfo.mThreadedRenderer.updateSurface(mSurface);
                     } catch (OutOfResourcesException e) {
                         handleOutOfResourcesException(e);
+                        mLastPerformTraversalsSkipDrawReason = "oom_update_surface";
                         return;
                     }
                 }
@@ -3274,6 +3334,20 @@ public final class ViewRootImpl implements ViewParent,
             maybeHandleWindowMove(frame);
         }
 
+        if (!mRelayoutRequested && mCheckIfCanDraw) {
+            // We had a sync previously, but we didn't call IWindowSession#relayout in this
+            // traversal. So we don't know if the sync is complete that we can continue to draw.
+            // Here invokes cancelDraw to obtain the information.
+            try {
+                cancelDraw = mWindowSession.cancelDraw(mWindow);
+                cancelReason = "wm_sync";
+                if (DEBUG_BLAST) {
+                    Log.d(mTag, "cancelDraw returned " + cancelDraw);
+                }
+            } catch (RemoteException e) {
+            }
+        }
+
         if (surfaceSizeChanged || surfaceReplaced || surfaceCreated || windowAttributesChanged) {
             // If the surface has been replaced, there's a chance the bounds layer is not parented
             // to the new layer. When updating bounds layer, also reparent to the main VRI
@@ -3481,15 +3555,21 @@ public final class ViewRootImpl implements ViewParent,
         mImeFocusController.onTraversal(hasWindowFocus, mWindowAttributes);
 
         if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) {
-            reportNextDraw();
+            reportNextDraw("first_relayout");
         }
 
-        boolean cancelAndRedraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw();
+        mCheckIfCanDraw = isSyncRequest || cancelDraw;
+
+        boolean cancelDueToPreDrawListener = mAttachInfo.mTreeObserver.dispatchOnPreDraw();
+        boolean cancelAndRedraw = cancelDueToPreDrawListener
+                 || (cancelDraw && mDrewOnceForSync);
         if (!cancelAndRedraw) {
             createSyncIfNeeded();
+            mDrewOnceForSync = true;
         }
 
         if (!isViewVisible) {
+            mLastPerformTraversalsSkipDrawReason = "view_not_visible";
             if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
                 for (int i = 0; i < mPendingTransitions.size(); ++i) {
                     mPendingTransitions.get(i).endChangingAnimations();
@@ -3501,6 +3581,9 @@ public final class ViewRootImpl implements ViewParent,
                 mSyncBufferCallback.onBufferReady(null);
             }
         } else if (cancelAndRedraw) {
+            mLastPerformTraversalsSkipDrawReason = cancelDueToPreDrawListener
+                ? "predraw_" + mAttachInfo.mTreeObserver.getLastDispatchOnPreDrawCanceledReason()
+                : "cancel_" + cancelReason;
             // Try again
             scheduleTraversals();
         } else {
@@ -3524,11 +3607,13 @@ public final class ViewRootImpl implements ViewParent,
 
         if (!cancelAndRedraw) {
             mReportNextDraw = false;
+            mLastReportNextDrawReason = null;
             mSyncBufferCallback = null;
             mSyncBuffer = false;
             if (isInLocalSync()) {
                 mSurfaceSyncer.markSyncReady(mSyncId);
                 mSyncId = UNSET_SYNC_ID;
+                mLocalSyncState = LOCAL_SYNC_NONE;
             }
         }
     }
@@ -3540,9 +3625,12 @@ public final class ViewRootImpl implements ViewParent,
         }
 
         final int seqId = mSyncSeqId;
+        mLocalSyncState = LOCAL_SYNC_PENDING;
         mSyncId = mSurfaceSyncer.setupSync(transaction -> {
+            mLocalSyncState = LOCAL_SYNC_RETURNED;
             // Callback will be invoked on executor thread so post to main thread.
             mHandler.postAtFrontOfQueue(() -> {
+                mLocalSyncState = LOCAL_SYNC_MERGED;
                 mSurfaceChangedTransaction.merge(transaction);
                 reportDrawFinished(seqId);
             });
@@ -4257,9 +4345,12 @@ public final class ViewRootImpl implements ViewParent,
     }
 
     private boolean performDraw() {
+        mLastPerformDrawSkippedReason = null;
         if (mAttachInfo.mDisplayState == Display.STATE_OFF && !mReportNextDraw) {
+            mLastPerformDrawSkippedReason = "screen_off";
             return false;
         } else if (mView == null) {
+            mLastPerformDrawSkippedReason = "no_root_view";
             return false;
         }
 
@@ -5224,6 +5315,21 @@ public final class ViewRootImpl implements ViewParent,
             throw new IllegalArgumentException("No merged config provided.");
         }
 
+        final int lastRotation = mLastReportedMergedConfiguration.getMergedConfiguration()
+                .windowConfiguration.getRotation();
+        final int newRotation = mergedConfiguration.getMergedConfiguration()
+                .windowConfiguration.getRotation();
+        if (lastRotation != newRotation) {
+            // Trigger ThreadedRenderer#updateSurface() if the surface control doesn't change.
+            // Because even if the actual surface size is not changed, e.g. flip 180 degrees,
+            // the buffers may still have content in previous rotation. And the next draw may
+            // not update all regions, that causes some afterimages to flicker.
+            mUpdateSurfaceNeeded = true;
+            if (!mIsInTraversal) {
+                mForceNextWindowRelayout = true;
+            }
+        }
+
         Configuration globalConfig = mergedConfiguration.getGlobalConfiguration();
         final Configuration overrideConfig = mergedConfiguration.getOverrideConfiguration();
         if (DEBUG_CONFIGURATION) Log.v(mTag,
@@ -7976,7 +8082,44 @@ public final class ViewRootImpl implements ViewParent,
 
     private int relayoutWindow(WindowManager.LayoutParams params, int viewVisibility,
             boolean insetsPending) throws RemoteException {
-        mRelayoutRequested = true;
+        final WindowConfiguration winConfigFromAm = getConfiguration().windowConfiguration;
+        final WindowConfiguration winConfigFromWm =
+                mLastReportedMergedConfiguration.getGlobalConfiguration().windowConfiguration;
+        final WindowConfiguration winConfig = getCompatWindowConfiguration();
+        final int measuredWidth = mView.getMeasuredWidth();
+        final int measuredHeight = mView.getMeasuredHeight();
+        final boolean relayoutAsync;
+        if (LOCAL_LAYOUT
+                && (mViewFrameInfo.flags & FrameInfo.FLAG_WINDOW_VISIBILITY_CHANGED) == 0
+                && mWindowAttributes.type != TYPE_APPLICATION_STARTING
+                && mSyncSeqId <= mLastSyncSeqId
+                && winConfigFromAm.diff(winConfigFromWm, false /* compareUndefined */) == 0) {
+            final InsetsState state = mInsetsController.getState();
+            final Rect displayCutoutSafe = mTempRect;
+            state.getDisplayCutoutSafe(displayCutoutSafe);
+            mWindowLayout.computeFrames(mWindowAttributes.forRotation(winConfig.getRotation()),
+                    state, displayCutoutSafe, winConfig.getBounds(), winConfig.getWindowingMode(),
+                    measuredWidth, measuredHeight, mInsetsController.getRequestedVisibilities(),
+                    1f /* compatScale */, mTmpFrames);
+            mWinFrameInScreen.set(mTmpFrames.frame);
+            if (mTranslator != null) {
+                mTranslator.translateRectInAppWindowToScreen(mWinFrameInScreen);
+            }
+
+            // If the position and the size of the frame are both changed, it will trigger a BLAST
+            // sync, and we still need to call relayout to obtain the syncSeqId. Otherwise, we just
+            // need to send attributes via relayoutAsync.
+            final Rect oldFrame = mWinFrame;
+            final Rect newFrame = mTmpFrames.frame;
+            final boolean positionChanged =
+                    newFrame.top != oldFrame.top || newFrame.left != oldFrame.left;
+            final boolean sizeChanged =
+                    newFrame.width() != oldFrame.width() || newFrame.height() != oldFrame.height();
+            relayoutAsync = !positionChanged || !sizeChanged;
+        } else {
+            relayoutAsync = false;
+        }
+
         float appScale = mAttachInfo.mApplicationScale;
         boolean restore = false;
         if (params != null && mTranslator != null) {
@@ -7998,62 +8141,35 @@ public final class ViewRootImpl implements ViewParent,
             }
         }
 
-        final int requestedWidth = (int) (mView.getMeasuredWidth() * appScale + 0.5f);
-        final int requestedHeight = (int) (mView.getMeasuredHeight() * appScale + 0.5f);
-
+        final int requestedWidth = (int) (measuredWidth * appScale + 0.5f);
+        final int requestedHeight = (int) (measuredHeight * appScale + 0.5f);
         int relayoutResult = 0;
-        WindowConfiguration winConfig = getConfiguration().windowConfiguration;
-        if (LOCAL_LAYOUT) {
-            if (mFirst || viewVisibility != mViewVisibility) {
-                relayoutResult = mWindowSession.updateVisibility(mWindow, params, viewVisibility,
-                        mPendingMergedConfiguration, mSurfaceControl, mTempInsets, mTempControls);
-                if (mTranslator != null) {
-                    mTranslator.translateInsetsStateInScreenToAppWindow(mTempInsets);
-                    mTranslator.translateSourceControlsInScreenToAppWindow(mTempControls);
-                }
-                mInsetsController.onStateChanged(mTempInsets);
-                mInsetsController.onControlsChanged(mTempControls);
-
-                mPendingAlwaysConsumeSystemBars =
-                        (relayoutResult & RELAYOUT_RES_CONSUME_ALWAYS_SYSTEM_BARS) != 0;
-            }
-            final InsetsState state = mInsetsController.getState();
-            final Rect displayCutoutSafe = mTempRect;
-            state.getDisplayCutoutSafe(displayCutoutSafe);
-            if (mWindowAttributes.type == TYPE_APPLICATION_STARTING) {
-                // TODO(b/210378379): Remove the special logic.
-                // Letting starting window use the window bounds from the pending config is for the
-                // fixed rotation, because the config is not overridden before the starting window
-                // is created.
-                winConfig = mPendingMergedConfiguration.getMergedConfiguration()
-                        .windowConfiguration;
-            }
-            mWindowLayout.computeFrames(mWindowAttributes, state, displayCutoutSafe,
-                    winConfig.getBounds(), winConfig.getWindowingMode(), requestedWidth,
-                    requestedHeight, mInsetsController.getRequestedVisibilities(),
-                    getAttachedWindowFrame(), 1f /* compatScale */, mTmpFrames);
-
-            mWindowSession.updateLayout(mWindow, params,
-                    insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, mTmpFrames,
-                    requestedWidth, requestedHeight);
-
+        mRelayoutSeq++;
+        if (relayoutAsync) {
+            mWindowSession.relayoutAsync(mWindow, params,
+                    requestedWidth, requestedHeight, viewVisibility,
+                    insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, mRelayoutSeq,
+                    mLastSyncSeqId);
         } else {
             relayoutResult = mWindowSession.relayout(mWindow, params,
                     requestedWidth, requestedHeight, viewVisibility,
-                    insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0,
-                    mTmpFrames, mPendingMergedConfiguration, mSurfaceControl, mTempInsets,
-                    mTempControls, mRelayoutBundle);
+                    insetsPending ? WindowManagerGlobal.RELAYOUT_INSETS_PENDING : 0, mRelayoutSeq,
+                    mLastSyncSeqId, mTmpFrames, mPendingMergedConfiguration, mSurfaceControl,
+                    mTempInsets, mTempControls, mRelayoutBundle);
+            mRelayoutRequested = true;
             final int maybeSyncSeqId = mRelayoutBundle.getInt("seqid");
             if (maybeSyncSeqId > 0) {
                 mSyncSeqId = maybeSyncSeqId;
             }
-
+            mWinFrameInScreen.set(mTmpFrames.frame);
             if (mTranslator != null) {
                 mTranslator.translateRectInScreenToAppWindow(mTmpFrames.frame);
                 mTranslator.translateRectInScreenToAppWindow(mTmpFrames.displayFrame);
+                mTranslator.translateRectInScreenToAppWindow(mTmpFrames.attachedFrame);
                 mTranslator.translateInsetsStateInScreenToAppWindow(mTempInsets);
                 mTranslator.translateSourceControlsInScreenToAppWindow(mTempControls);
             }
+            mInvSizeCompatScale = 1f / mTmpFrames.sizeCompatScale;
             mInsetsController.onStateChanged(mTempInsets);
             mInsetsController.onControlsChanged(mTempControls);
 
@@ -8065,7 +8181,7 @@ public final class ViewRootImpl implements ViewParent,
                 (mDisplayInstallOrientation + mDisplay.getRotation()) % 4);
 
         WindowLayout.computeSurfaceSize(mWindowAttributes, winConfig.getMaxBounds(), requestedWidth,
-                requestedHeight, mTmpFrames.frame, mPendingDragResizing, mSurfaceSize);
+                requestedHeight, mWinFrameInScreen, mPendingDragResizing, mSurfaceSize);
 
         final boolean transformHintChanged = transformHint != mLastTransformHint;
         final boolean sizeChanged = !mLastSurfaceSize.equals(mSurfaceSize);
@@ -8115,6 +8231,7 @@ public final class ViewRootImpl implements ViewParent,
         if (restore) {
             params.restore();
         }
+
         setFrame(mTmpFrames.frame);
         return relayoutResult;
     }
@@ -8153,7 +8270,7 @@ public final class ViewRootImpl implements ViewParent,
     private void setFrame(Rect frame) {
         mWinFrame.set(frame);
 
-        final WindowConfiguration winConfig = getConfiguration().windowConfiguration;
+        final WindowConfiguration winConfig = getCompatWindowConfiguration();
         mPendingBackDropFrame.set(mPendingDragResizing && !winConfig.useWindowFrameForBackdrop()
                 ? winConfig.getMaxBounds()
                 : frame);
@@ -8353,6 +8470,21 @@ public final class ViewRootImpl implements ViewParent,
         if (mTraversalScheduled) {
             writer.println(innerPrefix + " (barrier=" + mTraversalBarrier + ")");
         }
+        writer.println(innerPrefix + "mReportNextDraw=" + mReportNextDraw);
+        if (mReportNextDraw) {
+            writer.println(innerPrefix + " (reason=" + mLastReportNextDrawReason + ")");
+        }
+        if (mLastPerformTraversalsSkipDrawReason != null) {
+            writer.println(innerPrefix + "mLastPerformTraversalsFailedReason="
+                + mLastPerformTraversalsSkipDrawReason);
+        }
+        if (mLastPerformDrawSkippedReason != null) {
+            writer.println(innerPrefix + "mLastPerformDrawFailedReason="
+                + mLastPerformDrawSkippedReason);
+        }
+        if (mLocalSyncState != LOCAL_SYNC_NONE) {
+            writer.println(innerPrefix + "mLocalSyncState=" + mLocalSyncState);
+        }
         writer.println(innerPrefix + "mIsAmbientMode="  + mIsAmbientMode);
         writer.println(innerPrefix + "mUnbufferedInputSource="
                 + Integer.toHexString(mUnbufferedInputSource));
@@ -9861,11 +9993,12 @@ public final class ViewRootImpl implements ViewParent,
         }
     }
 
-    private void reportNextDraw() {
+    private void reportNextDraw(String reason) {
         if (DEBUG_BLAST) {
             Log.d(mTag, "reportNextDraw " + Debug.getCallers(5));
         }
         mReportNextDraw = true;
+        mLastReportNextDrawReason = reason;
     }
 
     /**
@@ -9878,11 +10011,12 @@ public final class ViewRootImpl implements ViewParent,
      * @param syncBuffer If true, the transaction that contains the buffer from the draw should be
      *                   sent to system to be synced. If false, VRI will not try to sync the buffer,
      *                   but only report back that a buffer was drawn.
+     * @param reason A debug string indicating the reason for reporting the next draw
      * @hide
      */
-    public void setReportNextDraw(boolean syncBuffer) {
+    public void setReportNextDraw(boolean syncBuffer, String reason) {
         mSyncBuffer = syncBuffer;
-        reportNextDraw();
+        reportNextDraw(reason);
         invalidate();
     }
 
@@ -10850,8 +10984,8 @@ public final class ViewRootImpl implements ViewParent,
 
     private void registerCompatOnBackInvokedCallback() {
         mCompatOnBackInvokedCallback = () -> {
-                sendBackKeyEvent(KeyEvent.ACTION_DOWN);
-                sendBackKeyEvent(KeyEvent.ACTION_UP);
+            sendBackKeyEvent(KeyEvent.ACTION_DOWN);
+            sendBackKeyEvent(KeyEvent.ACTION_UP);
         };
         mOnBackInvokedDispatcher.registerOnBackInvokedCallback(
                 OnBackInvokedDispatcher.PRIORITY_DEFAULT, mCompatOnBackInvokedCallback);