commit 80e0a397a4712666661ecc629a64ec26e7f6aac3
author Jesse Hall <jessehall@google.com> Fri Mar 15 12:32:10 2013 -0700
committer Jesse Hall <jessehall@google.com> Mon Mar 18 14:21:45 2013 -0700
tree f0171cbaeff47237eeab83e2095b76818f04caca
parent 99c7dbb24994df2f3e175f7b25dd2c9dd92a72f0

Add BufferQueueInterposer and use it for virtual displays

BufferQueueInterposer allows a client to tap into a
IGraphicBufferProducer-based buffer queue, and modify buffers as they
pass from producer to consumer. VirtualDisplaySurface uses this to
layer HWC composition on top of GLES composition before passing the
buffer to the virtual display consumer.

Bug: 8384764
Change-Id: I61ae54f3d90de6a35f4f02bb5e64e7cc88e1cb83

services/surfaceflinger/DisplayHardware/HWComposer.h

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 9816a45..92e4cbf 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -112,7 +112,7 @@
     // does this display have layers handled by GLES
     bool hasGlesComposition(int32_t id) const;
 
-    // get the releaseFence file descriptor for the given display
+    // get the releaseFence file descriptor for a display's framebuffer layer.
     // the release fence is only valid after commit()
     int getAndResetReleaseFenceFd(int32_t id);