diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-layout-private.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-layout-private.hh | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-private.hh index 47fecd216d..d168e27f53 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-private.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-private.hh @@ -36,6 +36,15 @@ #include "hb-set-private.hh" +/* Private API corresponding to hb-ot-layout.h: */ + +HB_INTERNAL hb_bool_t +hb_ot_layout_table_find_feature (hb_face_t *face, + hb_tag_t table_tag, + hb_tag_t feature_tag, + unsigned int *feature_index); + + /* * GDEF */ @@ -179,6 +188,30 @@ _hb_ot_layout_destroy (hb_ot_layout_t *layout); #define lig_props() var1.u8[2] /* GSUB/GPOS ligature tracking */ #define syllable() var1.u8[3] /* GSUB/GPOS shaping boundaries */ + +/* loop over syllables */ + +#define foreach_syllable(buffer, start, end) \ + for (unsigned int \ + _count = buffer->len, \ + start = 0, end = _count ? _next_syllable (buffer, 0) : 0; \ + start < _count; \ + start = end, end = _next_syllable (buffer, start)) + +static inline unsigned int +_next_syllable (hb_buffer_t *buffer, unsigned int start) +{ + hb_glyph_info_t *info = buffer->info; + unsigned int count = buffer->len; + + unsigned int syllable = info[start].syllable(); + while (++start < count && syllable == info[start].syllable()) + ; + + return start; +} + + /* unicode_props */ enum { @@ -225,10 +258,12 @@ _hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info) return info->unicode_props1(); } +static inline bool _hb_glyph_info_ligated (const hb_glyph_info_t *info); + static inline hb_bool_t _hb_glyph_info_is_default_ignorable (const hb_glyph_info_t *info) { - return !!(info->unicode_props0() & MASK0_IGNORABLE); + return (info->unicode_props0() & MASK0_IGNORABLE) && !_hb_glyph_info_ligated (info); } static inline hb_bool_t @@ -406,6 +441,14 @@ _hb_glyph_info_clear_ligated_and_multiplied (hb_glyph_info_t *info) HB_OT_LAYOUT_GLYPH_PROPS_MULTIPLIED); } +static inline void +_hb_glyph_info_clear_substituted_and_ligated_and_multiplied (hb_glyph_info_t *info) +{ + info->glyph_props() &= ~(HB_OT_LAYOUT_GLYPH_PROPS_SUBSTITUTED | + HB_OT_LAYOUT_GLYPH_PROPS_LIGATED | + HB_OT_LAYOUT_GLYPH_PROPS_MULTIPLIED); +} + /* Allocation / deallocation. */ |