Use highp for distance field texture coord varyings.
authorjvanverth <jvanverth@google.com>
Mon, 23 Feb 2015 21:08:39 +0000 (13:08 -0800)
committerCommit bot <commit-bot@chromium.org>
Mon, 23 Feb 2015 21:08:39 +0000 (13:08 -0800)
commit9671ecd44e48e8bbe1361830717b79c9c4dc9d17
tree1e17930454ee8405837f205ff6d28a57a3e3fa31
parent6df8e3495a677a5df2476d2ff3bbe878fd178e4b
Use highp for distance field texture coord varyings.

Because the glyph texture atlas is 1024x2048, on certain platforms
using mediump UVs is not enough resolution for doing texture lookups
and getting good results for distance fields. Bumping these
to highp solves this problem.

BUG=skia:3445

Review URL: https://codereview.chromium.org/951003002
src/gpu/effects/GrDistanceFieldTextureEffect.cpp