Hi list,
I'm using my autohinter stem darkening patches daily and so far only
have stumbled over a minor rendering difference and one major fault:
DroidSansFallback.ttf renders excessively bold after
FT_Outline_EmboldenXY treatment, meaning, the same emboldening values
lead to a much stronger emboldening compared to the same values for
other fonts. I noticed that the font is constructed with 256 units per
EM. I don't know why this happens. Using ftview to open the font and
pressing "2" to go to the emboldening view, the font renders similarly
to other fonts in that mode. It's just when I do it inside the
autohinter that emboldening is excessive. Is there any special
processing in the autohinter that I'm overlooking?
After this is resolved, the code should be ripe for a review :)
https://github.com/madig/freetype2/tree/stem-darkening-autohinter
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