Question about F10 Freetype's autohinter

[Behdad Esfahbod]

On 04/27/2009 05:17 PM, Jud Craft wrote:
> Does grayscale full-hinting not work in Fedora's freetype?
>
> Switching between full and medium hinting seems to have no effect in
> F10.  The font rendering does not change.  I am certain I have no
> bizarre ~/.fonts.conf or /etc/fonts/local.conf settings.

Nothing that we patch here.  Try with upstream FreeType?

behdad

> Full hinting _does_ work when subpixel-smoothing is used.  But if I
> recall, the fact that subpixel-smoothing works at all in F10 is due to
> an oversight by the developers, which will be rolled back in F11.
>
> Is full-hinting only available when subpixel-smoothing is on?  I
> recall that Ubuntu seems to support both full and medium hinting, even
> in grayscale mode.  (Although the last time I tried it was back around
> 7.10, so it's highly possible things have changed since then).
>
> It is true that Ubuntu also uses the patented bytecode interpreter
> instead of the autohinter.  However, even if you enable that in Fedora
> with freetype-freeworld, there still seems to be no distinction
> between medium/full hinting in Fedora, when using grayscale smoothing.
>