Handle Z in DA

 Bug: 15671775

Change-Id: I33c7a70e78ef523ffd03165fb6c39d8e04d04f1f

1 files changed, 10 insertions, 0 deletions

diff --git a/libs/hwui/RenderProperties.h b/libs/hwui/RenderProperties.h
index 8c6cc9e967fc..eab929b07065 100644
--- a/libs/hwui/RenderProperties.h
+++ b/libs/hwui/RenderProperties.h
@@ -30,6 +30,7 @@
 #include "Rect.h"
 #include "RevealClip.h"
 #include "Outline.h"
+#include "utils/MathUtils.h"
 
 class SkBitmap;
 class SkColorFilter;
@@ -526,6 +527,15 @@ public:
         return mLayerProperties;
     }
 
+    // Returns true if damage calculations should be clipped to bounds
+    // TODO: Figure out something better for getZ(), as children should still be
+    // clipped to this RP's bounds. But as we will damage -INT_MAX to INT_MAX
+    // for this RP's getZ() anyway, this can be optimized when we have a
+    // Z damage estimate instead of INT_MAX
+    bool getClipDamageToBounds() const {
+        return getClipToBounds() && (getZ() <= 0 || getOutline().isEmpty());
+    }
+
 private:
 
     // Rendering properties