Properly reject empty unclipped savelayers

bug:27225580
bug:27281241

Empty unclipped savelayers (clipped at defer time, often by dirty rect)
were resulting in invalid layer clear rectangles. Simplify by just
rejecting these unclipped savelayers entirely at defer.

Also, use repaint rect as base clip for constructed ops within
LayerBuilder.

Change-Id: I5c466199e85201a2f68f5cdc60b29187c849961b

1 files changed, 1 insertions, 1 deletions

diff --git a/libs/hwui/LayerBuilder.h b/libs/hwui/LayerBuilder.h
index 99968e1750c8..4a7ca2de9b1b 100644
--- a/libs/hwui/LayerBuilder.h
+++ b/libs/hwui/LayerBuilder.h
@@ -109,10 +109,10 @@ public:
     const uint32_t width;
     const uint32_t height;
     const Rect repaintRect;
+    const ClipRect repaintClip;
     OffscreenBuffer* offscreenBuffer;
     const BeginLayerOp* beginLayerOp;
     const RenderNode* renderNode;
-    const ClipRect viewportClip;
 
     // list of deferred CopyFromLayer ops, to be deferred upon encountering EndUnclippedLayerOps
     std::vector<BakedOpState*> activeUnclippedSaveLayers;