commit 38efe86d9459cf5c96a24a34cc5cbf31fdba7e19
author Jesse Hall <jessehall@google.com> Sat Apr 06 23:12:29 2013 -0700
committer Jesse Hall <jessehall@google.com> Mon Jul 15 13:59:41 2013 -0700
tree 9fc8074b1c3fd31515d0396df9e7f917380529cb
parent 5cd46aa3399ddeaf12a211390dfde66c796ab299

Rewrite VirtualDisplaySurface

The previous implementation assumed that the HWC could read and write
the same buffer on frames that involved both GLES and HWC composition.
It turns out some hardware can't do this. The new implementation
maintains a scratch buffer pool to use on these mixed frames, but on
GLES-only or HWC-only frames still does composition directly into the
output buffer.

Bug: 8384764
Change-Id: I7a3addb34fad9bfcbdabbb8b635083e10223df69

services/surfaceflinger/DisplayDevice.h

diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index eefc107..748be1a 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -119,6 +119,8 @@
     int32_t                 getHwcDisplayId() const { return mHwcDisplayId; }
     const wp<IBinder>&      getDisplayToken() const { return mDisplayToken; }
 
+    status_t prepareFrame(const HWComposer& hwc) const;
+
     void swapBuffers(HWComposer& hwc) const;
     status_t compositionComplete() const;