Add R11 EAC pixel config

R11 EAC texture compression is introduced as part of the OpenGL ES 3.0 spec. This is a format that will likely be required on most mobile phones in the upcoming years, making it better to target than LATC, which is only available on NVIDIA GPUs.

Committed: https://skia.googlesource.com/skia/+/238b456a7c6fb85c15f1ec288ea4f406a1a89da2

[robertphillips, 2014-06-27 16:56:47]

lgtm + a question
Maybe add a snippet in the description about why this is being added?

https://codereview.chromium.org/330763008/diff/1/src/gpu/gl/GrGLCaps.cpp
File src/gpu/gl/GrGLCaps.cpp (right):

https://codereview.chromium.org/330763008/diff/1/src/gpu/gl/GrGLCaps.cpp#newc...
src/gpu/gl/GrGLCaps.cpp:535: // Check for R11_EAC
What about GL_ARB_ES3_compatibility ?

[krajcevski, 2014-06-27 17:49:37]

https://codereview.chromium.org/330763008/diff/1/src/gpu/gl/GrGLCaps.cpp
File src/gpu/gl/GrGLCaps.cpp (right):

https://codereview.chromium.org/330763008/diff/1/src/gpu/gl/GrGLCaps.cpp#newc...
src/gpu/gl/GrGLCaps.cpp:535: // Check for R11_EAC
On 2014/06/27 16:56:47, robertphillips wrote:
> What about GL_ARB_ES3_compatibility ?

Done.

[bsalomon, 2014-06-30 15:46:27]

lgtm

[krajcevski, 2014-06-30 15:46:55]

The CQ bit was checked by krajcevski@google.com

[commit-bot: I haz the power, 2014-06-30 15:47:27]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/krajcevski@google.com/330763008/40001

[commit-bot: I haz the power, 2014-06-30 16:09:26]

Change committed as 238b456a7c6fb85c15f1ec288ea4f406a1a89da2