commit 3599bf2c0727bc33e8136f5163eee6f398545e05
author Jamie Gennis <jgennis@google.com> Wed Aug 10 11:48:07 2011 -0700
committer Jamie Gennis <jgennis@google.com> Mon Aug 22 14:56:29 2011 -0700
tree beca7f4430aecb34117b24088a9f0cc99f0b701d
parent c2d9862c859eb61afccf93ba2824136b6bb7a987

SurfaceFlinger: use the HWC gralloc usage bit

This change makes SurfaceFlinger always use the
GRALLOC_USAGE_HW_COMPOSER usage bit when allocating buffers that may be
passed to the HWComposer.

Change-Id: I70362a8ede2b359fb2046853f85149d597465817

include/ui/GraphicBuffer.h

diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 370253a..b9deafc 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -62,6 +62,7 @@
         USAGE_HW_TEXTURE        = GRALLOC_USAGE_HW_TEXTURE,
         USAGE_HW_RENDER         = GRALLOC_USAGE_HW_RENDER,
         USAGE_HW_2D             = GRALLOC_USAGE_HW_2D,
+        USAGE_HW_COMPOSER       = GRALLOC_USAGE_HW_COMPOSER,
         USAGE_HW_MASK           = GRALLOC_USAGE_HW_MASK
     };
 

services/surfaceflinger/Layer.cpp

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 19c7ddd..853975a 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -559,6 +559,7 @@
         // need a hardware-protected path to external video sink
         usage |= GraphicBuffer::USAGE_PROTECTED;
     }
+    usage |= GraphicBuffer::USAGE_HW_COMPOSER;
     return usage;
 }