Merge "Port SurfaceControlViewHost to BLAST" into sc-dev

core/java/android/view/SurfaceControlViewHost.java

@@ -162,7 +162,6 @@ public class SurfaceControlViewHost {
             @NonNull WindowlessWindowManager wwm, boolean useSfChoreographer) {
         mWm = wwm;
         mViewRoot = new ViewRootImpl(c, d, mWm, useSfChoreographer);
-        mViewRoot.forceDisableBLAST();
         mAccessibilityEmbeddedConnection = mViewRoot.getAccessibilityEmbeddedConnection();
     }
 
@@ -188,7 +187,6 @@ public class SurfaceControlViewHost {
         mWm = new WindowlessWindowManager(context.getResources().getConfiguration(),
                 mSurfaceControl, hostToken);
         mViewRoot = new ViewRootImpl(context, display, mWm);
-        mViewRoot.forceDisableBLAST();
         mAccessibilityEmbeddedConnection = mViewRoot.getAccessibilityEmbeddedConnection();
     }
 

core/java/android/view/WindowlessWindowManager.java

@@ -71,7 +71,7 @@ public class WindowlessWindowManager implements IWindowSession {
         new HashMap<IBinder, ResizeCompleteCallback>();
 
     private final SurfaceSession mSurfaceSession = new SurfaceSession();
-    private final SurfaceControl mRootSurface;
+    protected final SurfaceControl mRootSurface;
     private final Configuration mConfiguration;
     private final IWindowSession mRealWm;
     private final IBinder mHostInputToken;
@@ -126,7 +126,7 @@ public class WindowlessWindowManager implements IWindowSession {
         }
     }
 
-    protected void attachToParentSurface(SurfaceControl.Builder b) {
+    protected void attachToParentSurface(IWindow window, SurfaceControl.Builder b) {
         b.setParent(mRootSurface);
     }
 
@@ -140,10 +140,10 @@ public class WindowlessWindowManager implements IWindowSession {
             InsetsSourceControl[] outActiveControls) {
         final SurfaceControl.Builder b = new SurfaceControl.Builder(mSurfaceSession)
                 .setFormat(attrs.format)
-                .setBufferSize(getSurfaceWidth(attrs), getSurfaceHeight(attrs))
+                .setBLASTLayer()
                 .setName(attrs.getTitle().toString())
                 .setCallsite("WindowlessWindowManager.addToDisplay");
-        attachToParentSurface(b);
+        attachToParentSurface(window, b);
         final SurfaceControl sc = b.build();
 
         if (((attrs.inputFeatures &
@@ -162,7 +162,8 @@ public class WindowlessWindowManager implements IWindowSession {
             mStateForWindow.put(window.asBinder(), state);
         }
 
-        final int res = WindowManagerGlobal.ADD_OKAY | WindowManagerGlobal.ADD_FLAG_APP_VISIBLE;
+        final int res = WindowManagerGlobal.ADD_OKAY | WindowManagerGlobal.ADD_FLAG_APP_VISIBLE |
+                        WindowManagerGlobal.ADD_FLAG_USE_BLAST;
 
         // Include whether the window is in touch mode.
         return isInTouchMode() ? res | WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE : res;
@@ -222,6 +223,17 @@ public class WindowlessWindowManager implements IWindowSession {
         return false;
     }
 
+    /** Access to package members for SystemWindow leashing
+     * @hide
+     */
+    protected IBinder getWindowBinder(View rootView) {
+        final ViewRootImpl root = rootView.getViewRootImpl();
+        if (root == null) {
+            return null;
+        }
+        return root.mWindow.asBinder();
+    }
+
     /** @hide */
     @Nullable
     protected SurfaceControl getSurfaceControl(View rootView) {
@@ -266,8 +278,8 @@ public class WindowlessWindowManager implements IWindowSession {
         WindowManager.LayoutParams attrs = state.mParams;
 
         if (viewFlags == View.VISIBLE) {
-            t.setBufferSize(sc, getSurfaceWidth(attrs), getSurfaceHeight(attrs))
-                    .setOpaque(sc, isOpaque(attrs)).show(sc).apply();
+            outSurfaceSize.set(getSurfaceWidth(attrs), getSurfaceHeight(attrs));
+            t.setOpaque(sc, isOpaque(attrs)).show(sc).apply();
             outSurfaceControl.copyFrom(sc, "WindowlessWindowManager.relayout");
         } else {
             t.hide(sc).apply();

libs/WindowManager/Shell/src/com/android/wm/shell/common/SystemWindows.java

@@ -40,9 +40,11 @@ import android.view.IWindowSessionCallback;
 import android.view.InsetsSourceControl;
 import android.view.InsetsState;
 import android.view.SurfaceControl;
+import android.view.SurfaceSession;
 import android.view.SurfaceControlViewHost;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewRootImpl;
 import android.view.WindowManager;
 import android.view.WindowlessWindowManager;
 import android.window.ClientWindowFrames;
@@ -251,6 +253,8 @@ public class SystemWindows {
     public class SysUiWindowManager extends WindowlessWindowManager {
         final int mDisplayId;
         ContainerWindow mContainerWindow;
+        final HashMap<IBinder, SurfaceControl> mLeashForWindow =
+                new HashMap<IBinder, SurfaceControl>();
         public SysUiWindowManager(int displayId, Context ctx, SurfaceControl rootSurface,
                 ContainerWindow container) {
             super(ctx.getResources().getConfiguration(), rootSurface, null /* hostInputToken */);
@@ -263,7 +267,33 @@ public class SystemWindows {
         }
 
         SurfaceControl getSurfaceControlForWindow(View rootView) {
-            return getSurfaceControl(rootView);
+            synchronized (this) {
+                return mLeashForWindow.get(getWindowBinder(rootView));
+            }
+        }
+
+        protected void attachToParentSurface(IWindow window, SurfaceControl.Builder b) {
+            SurfaceControl leash = new SurfaceControl.Builder(new SurfaceSession())
+                  .setContainerLayer()
+                  .setName("SystemWindowLeash")
+                  .setHidden(false)
+                  .setParent(mRootSurface)
+                  .setCallsite("SysUiWIndowManager#attachToParentSurface").build();
+            synchronized (this) {
+                mLeashForWindow.put(window.asBinder(), leash);
+            }
+            b.setParent(leash);
+        }
+
+        @Override
+        public void remove(android.view.IWindow window) throws RemoteException {
+            super.remove(window);
+            synchronized(this) {
+                IBinder token = window.asBinder();
+                new SurfaceControl.Transaction().remove(mLeashForWindow.get(token))
+                    .apply();
+                mLeashForWindow.remove(token);
+            }
         }
 
         void setTouchableRegionForWindow(View rootView, Region region) {

libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitWindowManager.java

@@ -87,7 +87,7 @@ public final class SplitWindowManager extends WindowlessWindowManager {
     }
 
     @Override
-    protected void attachToParentSurface(SurfaceControl.Builder b) {
+    protected void attachToParentSurface(IWindow window, SurfaceControl.Builder b) {
         mParentContainerCallbacks.attachToParentSurface(b);
     }
 

libs/WindowManager/Shell/src/com/android/wm/shell/legacysplitscreen/DividerView.java

@@ -862,14 +862,6 @@ public class DividerView extends FrameLayout implements OnTouchListener,
      * assigned to it.
      */
     private SurfaceControl getWindowSurfaceControl() {
-        final ViewRootImpl root = getViewRootImpl();
-        if (root == null) {
-            return null;
-        }
-        SurfaceControl out = root.getSurfaceControl();
-        if (out != null && out.isValid()) {
-            return out;
-        }
         return mWindowManager.mSystemWindows.getViewSurface(this);
     }
 

libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PhonePipMenuController.java

@@ -198,8 +198,7 @@ public class PhonePipMenuController implements PipMenuController {
      * {@code null}), it will get the leash that the WindowlessWM has assigned to it.
      */
     public SurfaceControl getSurfaceControl() {
-        SurfaceControl sf = mPipMenuView.getWindowSurfaceControl();
-        return sf != null ? sf : mSystemWindows.getViewSurface(mPipMenuView);
+        return mSystemWindows.getViewSurface(mPipMenuView);
     }
 
     /**