hwc: Add support for clearing with c2d
When blending translucent layers or transitioning with c2d,
sometimes the frame is blended with stale framebuffer content.
Clear the frame with C2D fill surface before drawing.
CRs-fixed: 462461
Change-Id: I1dca477fe88d77f4f0fa4846b155404f348e911d
diff --git a/libhwcomposer/hwc_copybit.h b/libhwcomposer/hwc_copybit.h
index 45d254a..bc3f263 100644
--- a/libhwcomposer/hwc_copybit.h
+++ b/libhwcomposer/hwc_copybit.h
@@ -70,6 +70,8 @@
void freeRenderBuffers();
+ int clear (private_handle_t* hnd, hwc_rect_t& rect);
+
private_handle_t* mRenderBuffer[NUM_RENDER_BUFFERS];
// Index of the current intermediate render buffer