SurfaceFlinger: Pass surface damage to HWC
Passes the surface damage from the incoming SurfaceFlingerConsumer
BufferQueue down to the hardware composer HAL interface, if the
HWC version number is 1.5 or greater.
Bug: 11239309
Change-Id: Ic4305210593874a8d6deba3319055b2b8c57e926
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 424c03e..46c17e5 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -76,6 +76,7 @@
Region visibleRegion;
Region coveredRegion;
Region visibleNonTransparentRegion;
+ Region surfaceDamageRegion;
// Layer serial number. This gives layers an explicit ordering, so we
// have a stable sort order when their layer stack and Z-order are
@@ -137,6 +138,12 @@
bool setCrop(const Rect& crop);
bool setLayerStack(uint32_t layerStack);
+ // If we have received a new buffer this frame, we will pass its surface
+ // damage down to hardware composer. Otherwise, we must send a region with
+ // one empty rect.
+ void useSurfaceDamage();
+ void useEmptyDamage();
+
uint32_t getTransactionFlags(uint32_t flags);
uint32_t setTransactionFlags(uint32_t flags);