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Remove coretext_aat shaper (#1581) 

coretext_aat was a temporary shaper to redirect shaping of AAT fonts
to CoreText and leaving the rest for HarfBuzz.  As HarfBuzz now supports
AAT and Chrome now actually ships that on a stable version on macOS,
we no longer care about such use-case.  If a client really wants 100%
metrics compatibility with CoreText better to use it directly or through
our API.  Replicating the same behavior still is possible using
hb_shape_full, something we don't care or like to offer anymore.

Fixes https://github.com/harfbuzz/harfbuzz/issues/1478
This commit is contained in:
Ebrahim Byagowi 2019-03-31 01:32:30 -07:00 committed by GitHub
parent d6005b49b3
commit ba4b7be455
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2 changed files with 0 additions and 60 deletions
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56
src/hb-coretext.cc
View File

@ -1148,59 +1148,3 @@ fail:
return ret; return ret;
} }
/*
* AAT shaper
*/
/*
* shaper face data
*/
struct hb_coretext_aat_face_data_t {};
hb_coretext_aat_face_data_t *
_hb_coretext_aat_shaper_face_data_create (hb_face_t *face)
{
return hb_aat_layout_has_substitution (face) || hb_aat_layout_has_positioning (face) ?
(hb_coretext_aat_face_data_t *) HB_SHAPER_DATA_SUCCEEDED : nullptr;
}
void
_hb_coretext_aat_shaper_face_data_destroy (hb_coretext_aat_face_data_t *data HB_UNUSED)
{
}
/*
* shaper font data
*/
struct hb_coretext_aat_font_data_t {};
hb_coretext_aat_font_data_t *
_hb_coretext_aat_shaper_font_data_create (hb_font_t *font)
{
return font->data.coretext ? (hb_coretext_aat_font_data_t *) HB_SHAPER_DATA_SUCCEEDED : nullptr;
}
void
_hb_coretext_aat_shaper_font_data_destroy (hb_coretext_aat_font_data_t *data HB_UNUSED)
{
}
/*
* shaper
*/
hb_bool_t
_hb_coretext_aat_shape (hb_shape_plan_t *shape_plan,
hb_font_t *font,
hb_buffer_t *buffer,
const hb_feature_t *features,
unsigned int num_features)
{
return _hb_coretext_shape (shape_plan, font, buffer, features, num_features);
}

4
src/hb-shaper-list.hh
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@ -45,10 +45,6 @@ HB_SHAPER_IMPLEMENT (directwrite)
#endif #endif
#ifdef HAVE_CORETEXT #ifdef HAVE_CORETEXT
HB_SHAPER_IMPLEMENT (coretext) HB_SHAPER_IMPLEMENT (coretext)
/* Only picks up fonts that have a "mort" or "morx" table.
Probably going to be removed https://github.com/harfbuzz/harfbuzz/issues/1478 */
HB_SHAPER_IMPLEMENT (coretext_aat)
#endif #endif
#ifdef HAVE_FALLBACK #ifdef HAVE_FALLBACK