[ft-devel] Regression in light hinting mode with freetype 2.2.1

[Frederic Crozat]

Hi,

I've pushed freetype 2.2.1 in cooker yesterday and I got some reports
about font rendering becoming worse than the one with 2.1.10 (cooker had
2.1.10 + some selected patches from CVS fixing various issues, see
http://cvs.mandriva.com/cgi-bin/cvsweb.cgi/SPECS/freetype2/freetype2.spec?rev=1.60&content-type=text/x-cvsweb-markup
 for a full list).

After some investigations, it seems light hinting mode is the culprit :
I've done a side by side comparison of Deja Vu Sans font (version 2.6)
at 10.0 points, 95.0 dpi with ftview and light hinting mode seems to
draw some hinting on the wrong side of the glyp : check at
http://people.mandriva.com/~fcrozat/ft-2110-221.png

If I enable back horizontal hinting when using light hinting mode
(aflatin.c:1370), I'm getting back the "correct" rendering, but I'm not
sure it is the correct solution (since disable horizontal hinting in
that particular case was done on purpose).

-- 
Frederic Crozat <address@hidden>
Mandriva