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#define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX #define HB_OT_LAYOUT_NO_FEATURE_INDEX #define HB_OT_LAYOUT_NO_SCRIPT_INDEX #define HB_OT_TAG_GDEF #define HB_OT_TAG_GPOS #define HB_OT_TAG_GSUB void hb_ot_layout_collect_lookups (hb_face_t *face
,hb_tag_t table_tag
,const hb_tag_t *scripts
,const hb_tag_t *languages
,const hb_tag_t *features
,hb_set_t *lookup_indexes
); unsigned int hb_ot_layout_feature_get_lookups (hb_face_t *face
,hb_tag_t table_tag
,unsigned int feature_index
,unsigned int start_offset
,unsigned int *lookup_count
,unsigned int *lookup_indexes
); unsigned int hb_ot_layout_get_attach_points (hb_face_t *face
,hb_codepoint_t glyph
,unsigned int start_offset
,unsigned int *point_count
,unsigned int *point_array
); hb_ot_layout_glyph_class_t hb_ot_layout_get_glyph_class (hb_face_t *face
,hb_codepoint_t glyph
); void hb_ot_layout_get_glyphs_in_class (hb_face_t *face
,hb_ot_layout_glyph_class_t klass
,hb_set_t *glyphs
); unsigned int hb_ot_layout_get_ligature_carets (hb_font_t *font
,hb_direction_t direction
,hb_codepoint_t glyph
,unsigned int start_offset
,unsigned int *caret_count
,hb_position_t *caret_array
); hb_bool_t hb_ot_layout_get_size_params (hb_face_t *face
,unsigned int *design_size
,unsigned int *subfamily_id
,unsigned int *subfamily_name_id
,unsigned int *range_start
,unsigned int *range_end
); enum hb_ot_layout_glyph_class_t; hb_bool_t (*hb_ot_layout_glyph_sequence_func_t) (hb_font_t *font
,hb_tag_t table_tag
,unsigned int lookup_index
,const hb_ot_layout_glyph_sequence_t *sequence
,void *user_data
); hb_bool_t hb_ot_layout_has_glyph_classes (hb_face_t *face
); hb_bool_t hb_ot_layout_has_positioning (hb_face_t *face
); hb_bool_t hb_ot_layout_has_substitution (hb_face_t *face
); hb_bool_t hb_ot_layout_language_find_feature (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,hb_tag_t feature_tag
,unsigned int *feature_index
); unsigned int hb_ot_layout_language_get_feature_indexes (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,unsigned int start_offset
,unsigned int *feature_count
,unsigned int *feature_indexes
); unsigned int hb_ot_layout_language_get_feature_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,unsigned int start_offset
,unsigned int *feature_count
,hb_tag_t *feature_tags
); hb_bool_t hb_ot_layout_language_get_required_feature_index (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,unsigned int *feature_index
); void hb_ot_layout_lookup_collect_glyphs (hb_face_t *face
,hb_tag_t table_tag
,unsigned int lookup_index
,hb_set_t *glyphs_before
,hb_set_t *glyphs_input
,hb_set_t *glyphs_after
,hb_set_t *glyphs_output
); void hb_ot_layout_lookup_substitute_closure (hb_face_t *face
,unsigned int lookup_index
,hb_set_t *glyphs
); hb_bool_t hb_ot_layout_lookup_would_substitute (hb_face_t *face
,unsigned int lookup_index
,const hb_codepoint_t *glyphs
,unsigned int glyphs_length
,hb_bool_t zero_context
); hb_bool_t hb_ot_layout_script_find_language (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,hb_tag_t language_tag
,unsigned int *language_index
); unsigned int hb_ot_layout_script_get_language_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int start_offset
,unsigned int *language_count
,hb_tag_t *language_tags
); hb_bool_t hb_ot_layout_table_choose_script (hb_face_t *face
,hb_tag_t table_tag
,const hb_tag_t *script_tags
,unsigned int *script_index
,hb_tag_t *chosen_script
); hb_bool_t hb_ot_layout_table_find_script (hb_face_t *face
,hb_tag_t table_tag
,hb_tag_t script_tag
,unsigned int *script_index
); unsigned int hb_ot_layout_table_get_feature_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int start_offset
,unsigned int *feature_count
,hb_tag_t *feature_tags
); unsigned int hb_ot_layout_table_get_script_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int start_offset
,unsigned int *script_count
,hb_tag_t *script_tags
); void hb_ot_shape_plan_collect_lookups (hb_shape_plan_t *shape_plan
,hb_tag_t table_tag
,hb_set_t *lookup_indexes
);
#define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX ((unsigned int) 0xFFFF)
void hb_ot_layout_collect_lookups (hb_face_t *face
,hb_tag_t table_tag
,const hb_tag_t *scripts
,const hb_tag_t *languages
,const hb_tag_t *features
,hb_set_t *lookup_indexes
);
unsigned int hb_ot_layout_feature_get_lookups (hb_face_t *face
,hb_tag_t table_tag
,unsigned int feature_index
,unsigned int start_offset
,unsigned int *lookup_count
,unsigned int *lookup_indexes
);
unsigned int hb_ot_layout_get_attach_points (hb_face_t *face
,hb_codepoint_t glyph
,unsigned int start_offset
,unsigned int *point_count
,unsigned int *point_array
);
hb_ot_layout_glyph_class_t hb_ot_layout_get_glyph_class (hb_face_t *face
,hb_codepoint_t glyph
);
void hb_ot_layout_get_glyphs_in_class (hb_face_t *face
,hb_ot_layout_glyph_class_t klass
,hb_set_t *glyphs
);
unsigned int hb_ot_layout_get_ligature_carets (hb_font_t *font
,hb_direction_t direction
,hb_codepoint_t glyph
,unsigned int start_offset
,unsigned int *caret_count
,hb_position_t *caret_array
);
hb_bool_t hb_ot_layout_get_size_params (hb_face_t *face
,unsigned int *design_size
,unsigned int *subfamily_id
,unsigned int *subfamily_name_id
,unsigned int *range_start
,unsigned int *range_end
);
typedef enum { HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED = 0, HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH = 1, HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE = 2, HB_OT_LAYOUT_GLYPH_CLASS_MARK = 3, HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT = 4 } hb_ot_layout_glyph_class_t;
hb_bool_t (*hb_ot_layout_glyph_sequence_func_t) (hb_font_t *font
,hb_tag_t table_tag
,unsigned int lookup_index
,const hb_ot_layout_glyph_sequence_t *sequence
,void *user_data
);
hb_bool_t hb_ot_layout_language_find_feature (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,hb_tag_t feature_tag
,unsigned int *feature_index
);
unsigned int hb_ot_layout_language_get_feature_indexes (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,unsigned int start_offset
,unsigned int *feature_count
,unsigned int *feature_indexes
);
unsigned int hb_ot_layout_language_get_feature_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,unsigned int start_offset
,unsigned int *feature_count
,hb_tag_t *feature_tags
);
hb_bool_t hb_ot_layout_language_get_required_feature_index (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int language_index
,unsigned int *feature_index
);
void hb_ot_layout_lookup_collect_glyphs (hb_face_t *face
,hb_tag_t table_tag
,unsigned int lookup_index
,hb_set_t *glyphs_before
,hb_set_t *glyphs_input
,hb_set_t *glyphs_after
,hb_set_t *glyphs_output
);
void hb_ot_layout_lookup_substitute_closure (hb_face_t *face
,unsigned int lookup_index
,hb_set_t *glyphs
);
hb_bool_t hb_ot_layout_lookup_would_substitute (hb_face_t *face
,unsigned int lookup_index
,const hb_codepoint_t *glyphs
,unsigned int glyphs_length
,hb_bool_t zero_context
);
hb_bool_t hb_ot_layout_script_find_language (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,hb_tag_t language_tag
,unsigned int *language_index
);
unsigned int hb_ot_layout_script_get_language_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int script_index
,unsigned int start_offset
,unsigned int *language_count
,hb_tag_t *language_tags
);
hb_bool_t hb_ot_layout_table_choose_script (hb_face_t *face
,hb_tag_t table_tag
,const hb_tag_t *script_tags
,unsigned int *script_index
,hb_tag_t *chosen_script
);
hb_bool_t hb_ot_layout_table_find_script (hb_face_t *face
,hb_tag_t table_tag
,hb_tag_t script_tag
,unsigned int *script_index
);
unsigned int hb_ot_layout_table_get_feature_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int start_offset
,unsigned int *feature_count
,hb_tag_t *feature_tags
);
unsigned int hb_ot_layout_table_get_script_tags (hb_face_t *face
,hb_tag_t table_tag
,unsigned int start_offset
,unsigned int *script_count
,hb_tag_t *script_tags
);
void hb_ot_shape_plan_collect_lookups (hb_shape_plan_t *shape_plan
,hb_tag_t table_tag
,hb_set_t *lookup_indexes
);