diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-math.cc')
| -rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-math.cc | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-math.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-math.cc index 5781d25f2a9..f44ac358493 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-math.cc +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-math.cc @@ -185,6 +185,51 @@ hb_ot_math_get_glyph_kerning (hb_font_t *font, } /** + * hb_ot_math_get_glyph_kernings: + * @font: #hb_font_t to work upon + * @glyph: The glyph index from which to retrieve the kernings + * @kern: The #hb_ot_math_kern_t from which to retrieve the kernings + * @start_offset: offset of the first kern entry to retrieve + * @entries_count: (inout) (optional): Input = the maximum number of kern entries to return; + * Output = the actual number of kern entries returned + * @kern_entries: (out caller-allocates) (array length=entries_count): array of kern entries returned + * + * Fetches the raw MathKern (cut-in) data for the specified font, glyph index, + * and @kern. The corresponding list of kern values and correction heights is + * returned as a list of #hb_ot_math_kern_entry_t structs. + * + * See also #hb_ot_math_get_glyph_kerning, which handles selecting the + * appropriate kern value for a given correction height. + * + * <note>For a glyph with @n defined kern values (where @n > 0), there are only + * @n−1 defined correction heights, as each correction height defines a boundary + * past which the next kern value should be selected. Therefore, only the + * #hb_ot_math_kern_entry_t.kern_value of the uppermost #hb_ot_math_kern_entry_t + * actually comes from the font; its corresponding + * #hb_ot_math_kern_entry_t.max_correction_height is always set to + * <code>INT32_MAX</code>.</note> + * + * Return value: the total number of kern values available or zero + * + * Since: 3.4.0 + **/ +unsigned int +hb_ot_math_get_glyph_kernings (hb_font_t *font, + hb_codepoint_t glyph, + hb_ot_math_kern_t kern, + unsigned int start_offset, + unsigned int *entries_count, /* IN/OUT */ + hb_ot_math_kern_entry_t *kern_entries /* OUT */) +{ + return font->face->table.MATH->get_glyph_info().get_kernings (glyph, + kern, + start_offset, + entries_count, + kern_entries, + font); +} + +/** * hb_ot_math_get_glyph_variants: * @font: #hb_font_t to work upon * @glyph: The index of the glyph to stretch |