Font rendering in F13

Ilyes Gouta ilyes.gouta at
Sat May 22 11:47:35 UTC 2010


Will the bytecode interpreter in freetype be enabled for Fedora 14?

-Ilyes Gouta

On Wed, Mar 3, 2010 at 11:53 PM, Matthias Clasen <mclasen at> wrote:
> Hey,
> early in the F13 cycle, we enabled the bytecode interpreter in our
> freetype package, since the patents on that have expired last fall.
> Unfortunately, it turned out that many free fonts don't actually benefit
> from this, and actually look worse with the bci. The reason for that is
> that without the bci, freetype uses its autohinter on all fonts, but
> with the bci turned on, it only applies hints to fonts which have them,
> and leaves other fonts alone.
> Behdad investigated the situation, and we have a plan to fix this, but
> doing it properly requires enhancements in multiple places (freetype,
> fontconfig, pango), and will not be ready in time for F13.
> Therefore, we decided to turn the bci off again until the necessary
> changes are in place to use it only on fonts which benefit from it. This
> change went into freetype-2.3.11-3.fc13.
> If your fonts look subtly different tomorrow, this is why...
> Matthias
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