[cairo-bugs] [Bug 63771] Support rendering colored bitmap fonts in Quartz backend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63771

--- Comment #11 from Andrea Canciani <ranma42 at gmail.com> ---
I was wondering how this interacts with the fallback infrastructure...

We might need to perform the corresponding change
(CGContextShowGlyphsWithAdvances/CGContextShowGlyphsAtPoint ->
CTFontDrawGlyphs) in _cairo_quartz_init_glyph_surface(), but it currently
returns A8 surfaces.
I do not think that the changes needed to support colors in
_cairo_quartz_init_glyph_path() would be trivial.

AFAICT the current infrastructure does not really expect multi-color glyphs.
Behdad might be able to provide some more insight and directions about what is
the best way forward here.

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