Fix an issue is SF that caused drawing artifacts when hwc changed mode
we were not redrawing and/or clearing the FB properly when
hwc moved a layer from/to FB to/from OVERLAY.
In these cases we needed to expand the dirty region to include
the layer that changed mode.
Also split composeSurfaces() which was becoming quite large.
Change-Id: Id6fa1acfc4ff694037fddf7efd037a4405732073
diff --git a/services/surfaceflinger/LayerBase.h b/services/surfaceflinger/LayerBase.h
index d20f06a..ee50428 100644
--- a/services/surfaceflinger/LayerBase.h
+++ b/services/surfaceflinger/LayerBase.h
@@ -109,8 +109,10 @@
virtual const char* getTypeId() const { return "LayerBase"; }
virtual void setGeometry(hwc_layer_t* hwcl);
-
virtual void setPerFrameData(hwc_layer_t* hwcl);
+ void setOverlay(bool inOverlay);
+ bool isOverlay() const;
+
/**
* draw - performs some global clipping optimizations
@@ -242,6 +244,11 @@
// Whether filtering is needed b/c of the drawingstate
bool mNeedsFiltering;
+ // this layer is currently handled by the hwc. this is
+ // updated at composition time, always frmo the composition
+ // thread.
+ bool mInOverlay;
+
protected:
// cached during validateVisibility()
int32_t mOrientation;