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authorbacker@chromium.org <backer@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-11-24 15:43:19 +0000
committerbacker@chromium.org <backer@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2011-11-24 15:43:19 +0000
commit1743af3b377f4e37b666b4badb6113a104f6fbc1 (patch)
tree53d4d4f56f63ad7953c76ebfefcd5b27f9fe6a59 /third_party
parentcdbfffe2ada95679b3274a2f39d3cd371b76cdc7 (diff)
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Plumb thru that we cache the front buffer.
This allows us to drop the root layer textures and save on VRAM (10 MB on a 30" display). WebKit side patch: https://bugs.webkit.org/show_bug.cgi?id=72956 BUG=none TEST='cat /proc/meminfo | grep Shmem' on Intel graphics and use_aura=1 attached to 30" display Review URL: http://codereview.chromium.org/8637014 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@111532 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'third_party')
-rw-r--r--third_party/khronos/GLES2/gl2ext.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/third_party/khronos/GLES2/gl2ext.h b/third_party/khronos/GLES2/gl2ext.h
index 4ddf729..f1a49dc 100644
--- a/third_party/khronos/GLES2/gl2ext.h
+++ b/third_party/khronos/GLES2/gl2ext.h
@@ -1366,6 +1366,16 @@ typedef void (GL_APIENTRYP PFNGLPOSTSUBBUFFERCHROMIUM) (GLint x, GLint y, GLint
#endif
#endif
+/* GL_CHROMIUM_front_buffer_cached */
+/* This extension implies that there is a cache of the front buffer of the
+ * surface supporting this extension (e.g. on OSX the front buffer
+ * is often backed by an IOSurface). Hence we do not need to redraw
+ * (via a SwapBuffers) in order to display the last frame.
+ */
+#ifndef GL_CHROMIUM_front_buffer_cached
+#define GL_CHROMIUM_front_buffer_cached 1
+#endif
+
/* GL_ARB_robustness */
/* This extension is subsetted for the moment, incorporating only the
* enums necessary to describe the reasons that we might encounter for