Half pixel glitching
Migrated from: [SAVANNAH-58373]
- reported:
I found a glitch named Half pixel glitching. What happens is that in some half pixel structures, FreeType marks pixels blank incorrectly.
The font Riglos Mono 1.1 at 24ppem can demonstrate this problem: https://i.imgur.com/KRt5T38.png
Note how in some parts of glyphs FreeType ceases to work properly and marks the halfway pixels on some stems as blank when points on an outline should be enabled (and conversely for counters).