[cairo] cairo_ft_font_face_create_for_ft_face Subtlety

Chris Wilson chris at chris-wilson.co.uk
Mon Mar 23 16:48:01 PDT 2015

On Tue, Mar 24, 2015 at 11:01:56AM +1300, Lawrence D'Oliveiro wrote:
> I wrote:
> > I discovered this in the process of messing about with Multiple
> > Master/TrueType GX fonts. It looks like Cairo’s caching interferes
> > somewhat with the behaviour of these: to get around this, you have to
> > load the same font multiple times so that you can set different values
> > for the design coordinates on each copy.
> Alternatively, it would be nice if there were a call
>     void cairo_font_face_flush
>       (
>         cairo_font_face_t * font_face
>       );
> which invalidated all caches associated with that font face. That might
> be the simplest solution.

Yes. It should not actually be very difficult to implement and would
mirror existing cairo_object_t API:

Chris Wilson, Intel Open Source Technology Centre

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