skia: Prevent GL_RED from being used with MESA
authorhendrikw <hendrikw@chromium.org>
Tue, 2 Dec 2014 15:30:30 +0000 (07:30 -0800)
committerCommit bot <commit-bot@chromium.org>
Tue, 2 Dec 2014 15:30:30 +0000 (07:30 -0800)
commita0d5ad7208d579e3a9f7a680cbbaf0d2ae5c5d71
tree6973d9bf486ccae81631936fbebf6c491ba4f060
parentbfda8a778522a55604024496a87dab6b8da70f3f
skia: Prevent GL_RED from being used with MESA

MESA unfortunately doesn't support GL_RED or GL_RG when used with frame buffers.
Don't allow fTextureRedSupport to be set when using MESA.

BUG=skia:3181

Review URL: https://codereview.chromium.org/769073003
src/gpu/gl/GrGLCaps.cpp