Merge "Fixed cutout not drawn when it's inside rounded corner rect" into tm-dev am: cc1d5178d2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17166623

Change-Id: If020d80a17d7bc71221d6b38ba22c694cc2a1580

packages/SystemUI/src/com/android/systemui/ScreenDecorHwcLayer.kt

@@ -119,9 +119,13 @@ class ScreenDecorHwcLayer(context: Context, displayDecorationSupport: DisplayDec
         if (useInvertedAlphaColor) {
             canvas.drawColor(bgColor)
         }
+
+        // We may clear the color(if useInvertedAlphaColor is true) of the rounded corner rects
+        // before drawing rounded corners. If the cutout happens to be inside one of these rects, it
+        // will be cleared, so we have to draw rounded corners before cutout.
+        drawRoundedCorners(canvas)
         // Cutouts are drawn in DisplayCutoutBaseView.onDraw()
         super.onDraw(canvas)
-        drawRoundedCorners(canvas)
 
         debugTransparentRegionPaint?.let {
             calculateTransparentRect()