Merge "Skip transaction processing if the surface damage stays the same in Layer::setSurfaceDamageRegion."
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 3875f15..e06f3c4 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -459,6 +459,7 @@
 }
 
 bool BufferStateLayer::setSurfaceDamageRegion(const Region& surfaceDamage) {
+    if (mDrawingState.surfaceDamageRegion.hasSameRects(surfaceDamage)) return false;
     mDrawingState.surfaceDamageRegion = surfaceDamage;
     mDrawingState.modified = true;
     setTransactionFlags(eTransactionNeeded);