> From: Nikolay Sivov <bungleh...@gmail.com>
> Date: Sat, 14 Sep 2019 17:00:53 +0300
> Cc: Harfbuzz <harfbuzz@lists.freedesktop.org>
>
> AFAIU, HarfBuzz does support Stylistic Sets, but it is not clear to me
> what should an application do to request glyphs corresponding to a
> certain stylistic set.
>
> Suppose an application wants to display a text string using a specific
> stylistic set -- could someone please outline the sequence of API
> calls to get that, or point me to some documentation which describes
> that?
>
> Hi, Eli.
>
> I think it must be a matter of enabling features explicitly, in case you're
> asking about it would be features
> ss01-ss20, see hb_shape() arguments documentation.
> Basically, you set hb_feature_t fields to appropriate tag, value (1 for
> enabled), and start/end limits. That should
> do it.
I'm beginning to see the light, thanks.
So hb_feature_t's 'value' field should always be 1 for an enabled
features, and its 'tag' field should be something like
HB_TAG('s', 's', '0', '1')
is that right?
The next question is how to know whether a given hb_font_t supports a
given feature?
Thanks.
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