[cairo] release ?

[Behdad Esfahbod]

The problem is, we currently go through Fontconfig, which doesn't support
variation selectors either. Need to either bypass that and go to FreeType
or HarfBuzz directly, or fix Fontconfig first...

On Fri, Aug 11, 2017 at 3:16 PM, Behdad Esfahbod <behdad at cs.toronto.edu>
wrote:

> Ouch...
> Pango doesn't support variation selectors yet...  The missing line is in
> pangofc-shape.c:
>
> static hb_font_funcs_t *
> pango_fc_get_hb_font_funcs (void)
> {
>   static hb_font_funcs_t *funcs;
>
>   if (G_UNLIKELY (!funcs)) {
>     funcs = hb_font_funcs_create ();
>     hb_font_funcs_set_nominal_glyph_func (funcs,
> pango_fc_hb_font_get_nominal_glyph, NULL, NULL);
>     /* XXX we don't support variation selectors yet :(. */
>
> Let me think about what's the easiest way to fix that.
>
> On Fri, Aug 11, 2017 at 3:09 PM, Matthias Clasen <
> matthias.clasen at gmail.com> wrote:
>
>>
>> I've been down many dead ends here. What I am looking at currently is
>> this:
>>
>> $ ./hb-unicode-encode 1f468 200D 2695 fe0f | ../../util/hb-shape
>> --show-unicode /usr/share/fonts/google-noto-emoji/NotoColorEmoji.ttf
>> <U+1F468,U+200D,U+2695,U+FE0F>
>> [gid1586=0+2550]
>>
>> hb-shape shapes the "man health worker" sequence to a single glyph, as
>> expected
>> My debug spew from inside pango shows this:
>>
>> hb shape font: Noto Color Emoji 81.75
>> calling hb shape: item text: 👨‍⚕️
>> unicode: 1f468 200d 2695 fe0f
>> hb shape output: 2 glyphs: 1586 3
>>
>> Same input sequence, but an extra glyph is produced. Do you have any idea
>> why this happens ?
>>
>> Not sure yet how that messes up the rendering in cairo later
>>
>
>
>
> --
> behdad
> http://behdad.org/
>



-- 
behdad
http://behdad.org/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.cairographics.org/archives/cairo/attachments/20170811/013ce3c2/attachment.html>