[autofit] Add safety check for accent adjustments.
This commit does two things.
- Ignore accents that have too large heights. This situation can happen if
an accent outline is unexpectedly not the highest (or lowest) contour.
- Add a new adjustment flag `AF_ADJUST_NO_HEIGHT_CHECK` to override the
height check.
* src/autofit/afadjust.h (AF_ADJUST_NO_HEIGHT_CHECK): New macro.
* src/autofit/afadjust.c (adjustment_database): Updated.
* src/autofit/aflatin.c (af_latin_hints_apply): Handle new flag.
(af_glyph_hints_apply_vertical_separation_adjustments): Check limit.
3 files changed
