Overdraw avoidance in new pipeline
bug:27873093
Adds the simple overdraw avoidance optimization to the new
pipeline. This means when LayerBuilder defers draws that are opaque over
the full area of the repaint region, it will discard all drawing content
beneth.
Also moves a lot of complexity out of BakedOpState's header.
Change-Id: Iffca6d8e1b170ef31a5d6c83d25592670e02323d
diff --git a/libs/hwui/FrameBuilder.cpp b/libs/hwui/FrameBuilder.cpp
index b1314fe..b18836f 100644
--- a/libs/hwui/FrameBuilder.cpp
+++ b/libs/hwui/FrameBuilder.cpp
@@ -481,12 +481,17 @@
* Defers an unmergeable, strokeable op, accounting correctly
* for paint's style on the bounds being computed.
*/
-const BakedOpState* FrameBuilder::deferStrokeableOp(const RecordedOp& op, batchid_t batchId,
+BakedOpState* FrameBuilder::deferStrokeableOp(const RecordedOp& op, batchid_t batchId,
BakedOpState::StrokeBehavior strokeBehavior) {
// Note: here we account for stroke when baking the op
BakedOpState* bakedState = BakedOpState::tryStrokeableOpConstruct(
mAllocator, *mCanvasState.writableSnapshot(), op, strokeBehavior);
if (!bakedState) return nullptr; // quick rejected
+
+ if (op.opId == RecordedOpId::RectOp && op.paint->getStyle() != SkPaint::kStroke_Style) {
+ bakedState->setupOpacity(op.paint);
+ }
+
currentLayer().deferUnmergeableOp(mAllocator, bakedState, batchId);
return bakedState;
}
@@ -516,6 +521,7 @@
void FrameBuilder::deferBitmapOp(const BitmapOp& op) {
BakedOpState* bakedState = tryBakeOpState(op);
if (!bakedState) return; // quick rejected
+ bakedState->setupOpacity(op.paint);
// Don't merge non-simply transformed or neg scale ops, SET_TEXTURE doesn't handle rotation
// Don't merge A8 bitmaps - the paint's color isn't compared by mergeId, or in