After doing some vanilla/patch switching of FreeType and testing, I
found that Chromium is indeed impacted by the patch. Without it,
switching between the VFs I attached to
https://gitlab.gnome.org/GNOME/gtk/issues/1626 makes no difference on
http://www.cyreal.org/Font-Testing-Page/index.php
Actually, Behdad, just so I understand correctly:
In the case of Cantarell, assuming the line gap is put at the top,
toggling USE_TYPO_METRICS should _in theory_ not make any difference
because each of hhea, typo and win sums up to a total height of 1200
font units (1000 upM font + 20% line
Oh, right, sorry :D
So after some weeks of testing, I can say that fonts that set the
USE_TYPO_METRICS bit and have a sTypoLineHeight set to non-zero
consistently look shifted up in GNOME, so this patch seems to work ;)
No eye-catching change in Qt UI, Chromium or Firefox. Will test some
