Merge "WindowManager: Reapply magnification spec when adding windows." into pi-dev

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

@@ -393,6 +393,8 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo
     /** Temporary float array to retrieve 3x3 matrix values. */
     private final float[] mTmpFloats = new float[9];
 
+    private MagnificationSpec mMagnificationSpec;
+
     private final Consumer<WindowState> mUpdateWindowsForAnimator = w -> {
         WindowStateAnimator winAnimator = w.mWinAnimator;
         final AppWindowToken atoken = w.mAppToken;
@@ -3837,10 +3839,22 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo
     }
 
     void applyMagnificationSpec(MagnificationSpec spec) {
+        if (spec.scale != 1.0) {
+            mMagnificationSpec = spec;
+        } else {
+            mMagnificationSpec = null;
+        }
+
         applyMagnificationSpec(getPendingTransaction(), spec);
         getPendingTransaction().apply();
     }
 
+    void reapplyMagnificationSpec() {
+        if (mMagnificationSpec != null) {
+            applyMagnificationSpec(getPendingTransaction(), mMagnificationSpec);
+        }
+    }
+
     @Override
     void onParentSet() {
         // Since we are the top of the SurfaceControl hierarchy here

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

@@ -808,6 +808,8 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
     void onParentSet() {
         super.onParentSet();
         setDrawnStateEvaluated(false /*evaluated*/);
+
+        getDisplayContent().reapplyMagnificationSpec();
     }
 
     @Override