commit 21deace8efc8e167d8626187ef0e6b4c241324b6
author jvanverth <jvanverth@google.com> Wed Apr 01 12:43:48 2015 -0700
committer Commit bot <commit-bot@chromium.org> Wed Apr 01 12:43:48 2015 -0700
tree 695eedb6664e5edf333820eb6a21371c1ea2e562
parent 1d89e8d1a46dfd8dd0a417edec5409721a1600a6

Emulate distance field gamma fix by making glyphs thicker or thinner

The idea here is that we determine the 0.5 crossover for each
row in the gamma table, then invert the mapping to determine
which point that maps to in the original range [-.65,
.65]. That gives us a change in the apparent width of the
glyph that closely corresponds to the change produced by the gamma fix.

BUG=skia:2933

Review URL: https://codereview.chromium.org/1042373002