Transfer HWC release fences to BufferQueue
After a HWC set, each SurfaceFlinger Layer retrieves the release fence
HWC returned and gives it to the layer's SurfaceTexture. The
SurfaceTexture accumulates the fences into a merged fence until the
next updateTexImage, then passes the merged fence to the BufferQueue
in releaseBuffer.
In a follow-on change, BufferQueue will return the fence along with
the buffer slot in dequeueBuffer. For now, dequeueBuffer waits for the
fence to signal before returning.
The releaseFence default value for BufferQueue::releaseBuffer() is
temporary to avoid transient build breaks with a multi-project
checkin. It'll disappear in the next change.
Change-Id: Iaa9a0d5775235585d9cbf453d3a64623d08013d9
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 7a164aa..32456f4 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -82,7 +82,7 @@
// LayerBaseClient interface
virtual wp<IBinder> getSurfaceTextureBinder() const;
- virtual void onLayerDisplayed();
+ virtual void onLayerDisplayed(HWComposer::HWCLayerInterface* layer);
virtual bool onPreComposition();
// only for debugging