tree d2086d863022140e009908139cf7460f4bc2ba1f
parent 282aa1e4ee2d9aa64d42cf5a7516399f028b582f
author bungeman <bungeman@google.com> 1404155981 -0700
committer Ben Wagner <bungeman@google.com> 1405438382 -0400

DirectWrite to detect GDI only fonts.

The exist a number of webfonts which have poor hinting which look very
bad with any vertical subsampling. The fonts often rely on drop out
control to avoid zero coverage in the y direction. As a result, any font
with hints but no 'gasp' table is considered to be poorly hinted in this
way, and will not be rendered with vertical subsampling when hinted.

R=eae@chromium.org, reed@google.com, mtklein@google.com

Author: bungeman@google.com

Review URL: https://codereview.chromium.org/363433002