Add overdraw debugging feature to Skia pipelines
Test: Compared to OpenGL pipeline and sanity checked
with understanding of the drawing pipeline. Also
wrote a unit test.
BUG:32370375
Change-Id: Iab397d21f0def725fa89551d48c764c67fd2bda8
diff --git a/libs/hwui/pipeline/skia/SkiaPipeline.h b/libs/hwui/pipeline/skia/SkiaPipeline.h
index c1c8cbe..c58fedf 100644
--- a/libs/hwui/pipeline/skia/SkiaPipeline.h
+++ b/libs/hwui/pipeline/skia/SkiaPipeline.h
@@ -107,6 +107,18 @@
renderthread::RenderThread& mRenderThread;
private:
+ void renderFrameImpl(const LayerUpdateQueue& layers, const SkRect& clip,
+ const std::vector< sp<RenderNode> >& nodes, bool opaque, const Rect &contentDrawBounds,
+ SkCanvas* canvas);
+
+ /**
+ * Debugging feature. Draws a semi-transparent overlay on each pixel, indicating
+ * how many times it has been drawn.
+ */
+ void renderOverdraw(const LayerUpdateQueue& layers, const SkRect& clip,
+ const std::vector< sp<RenderNode> >& nodes, const Rect &contentDrawBounds,
+ sk_sp<SkSurface>);
+
TaskManager mTaskManager;
std::vector<sk_sp<SkImage>> mPinnedImages;
static float mLightRadius;