| /* |
| * Copyright (C) 2007,2008 Red Hat, Inc. |
| * |
| * This is part of HarfBuzz, an OpenType Layout engine library. |
| * |
| * Permission is hereby granted, without written agreement and without |
| * license or royalty fees, to use, copy, modify, and distribute this |
| * software and its documentation for any purpose, provided that the |
| * above copyright notice and the following two paragraphs appear in |
| * all copies of this software. |
| * |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| * |
| * Red Hat Author(s): Behdad Esfahbod |
| */ |
| |
| #ifndef HB_OT_LAYOUT_H |
| #define HB_OT_LAYOUT_H |
| |
| #include "hb-common.h" |
| |
| HB_BEGIN_DECLS(); |
| |
| /* |
| * hb_ot_layout_t |
| */ |
| |
| typedef struct _hb_ot_layout_t hb_ot_layout_t; |
| |
| hb_ot_layout_t * |
| hb_ot_layout_create (void); |
| |
| hb_ot_layout_t * |
| hb_ot_layout_create_for_data (const char *font_data, |
| int face_index); |
| |
| void |
| hb_ot_layout_destroy (hb_ot_layout_t *layout); |
| |
| /* TODO sanitizing API/constructor (make_wrieable_func_t) */ |
| /* TODO get_table_func_t constructor */ |
| |
| /* |
| * GDEF |
| */ |
| |
| typedef enum { |
| HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED = 0x0000, |
| HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH = 0x0002, |
| HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE = 0x0004, |
| HB_OT_LAYOUT_GLYPH_CLASS_MARK = 0x0008, |
| HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT = 0x0010 |
| } hb_ot_layout_glyph_class_t; |
| |
| hb_bool_t |
| hb_ot_layout_has_font_glyph_classes (hb_ot_layout_t *layout); |
| |
| hb_ot_layout_glyph_class_t |
| hb_ot_layout_get_glyph_class (hb_ot_layout_t *layout, |
| hb_codepoint_t glyph); |
| |
| void |
| hb_ot_layout_set_glyph_class (hb_ot_layout_t *layout, |
| hb_codepoint_t glyph, |
| hb_ot_layout_glyph_class_t klass); |
| |
| void |
| hb_ot_layout_build_glyph_classes (hb_ot_layout_t *layout, |
| uint16_t num_total_glyphs, |
| hb_codepoint_t *glyphs, |
| unsigned char *klasses, |
| uint16_t count); |
| |
| /* |
| * GSUB/GPOS |
| */ |
| |
| typedef enum { |
| HB_OT_LAYOUT_TABLE_TYPE_GSUB, |
| HB_OT_LAYOUT_TABLE_TYPE_GPOS, |
| HB_OT_LAYOUT_TABLE_TYPE_NONE |
| } hb_ot_layout_table_type_t; |
| |
| typedef uint16_t hb_ot_layout_feature_mask_t; |
| |
| #define HB_OT_LAYOUT_MAX_NESTING_LEVEL 100 |
| |
| #define HB_OT_LAYOUT_NO_SCRIPT_INDEX ((unsigned int) 0xFFFF) |
| #define HB_OT_LAYOUT_NO_FEATURE_INDEX ((unsigned int) 0xFFFF) |
| #define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX ((unsigned int) 0xFFFF) |
| #define HB_OT_LAYOUT_TAG_DEFAULT_SCRIPT HB_TAG ('D', 'F', 'L', 'T') |
| #define HB_OT_LAYOUT_TAG_DEFAULT_LANGUAGE HB_TAG ('d', 'f', 'l', 't') |
| |
| unsigned int |
| hb_ot_layout_table_get_script_count (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type); |
| |
| hb_tag_t |
| hb_ot_layout_table_get_script_tag (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index); |
| |
| hb_bool_t |
| hb_ot_layout_table_find_script (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| hb_tag_t script_tag, |
| unsigned int *script_index); |
| |
| unsigned int |
| hb_ot_layout_table_get_feature_count (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type); |
| |
| hb_tag_t |
| hb_ot_layout_table_get_feature_tag (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int feature_index); |
| |
| hb_bool_t |
| hb_ot_layout_table_find_script (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| hb_tag_t feature_tag, |
| unsigned int *feature_index); |
| |
| unsigned int |
| hb_ot_layout_table_get_lookup_count (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type); |
| |
| unsigned int |
| hb_ot_layout_script_get_language_count (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index); |
| |
| hb_tag_t |
| hb_ot_layout_script_get_language_tag (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| unsigned int language_index); |
| |
| hb_bool_t |
| hb_ot_layout_script_find_language (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| hb_tag_t language_tag, |
| unsigned int *language_index); |
| |
| hb_bool_t |
| hb_ot_layout_language_get_required_feature_index (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| unsigned int language_index, |
| unsigned int *feature_index); |
| |
| unsigned int |
| hb_ot_layout_language_get_feature_count (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| unsigned int language_index); |
| |
| unsigned int |
| hb_ot_layout_language_get_feature_index (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| unsigned int language_index, |
| unsigned int num_feature); |
| |
| hb_tag_t |
| hb_ot_layout_language_get_feature_tag (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| unsigned int language_index, |
| unsigned int num_feature); |
| |
| hb_bool_t |
| hb_ot_layout_language_find_feature (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int script_index, |
| unsigned int language_index, |
| hb_tag_t feature_tag, |
| unsigned int *feature_index); |
| |
| unsigned int |
| hb_ot_layout_feature_get_lookup_count (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int feature_index); |
| |
| unsigned int |
| hb_ot_layout_feature_get_lookup_index (hb_ot_layout_t *layout, |
| hb_ot_layout_table_type_t table_type, |
| unsigned int feature_index, |
| unsigned int num_lookup); |
| |
| /* |
| * GSUB |
| */ |
| |
| hb_bool_t |
| hb_ot_layout_substitute_lookup (hb_ot_layout_t *layout, |
| hb_buffer_t *buffer, |
| unsigned int lookup_index, |
| hb_ot_layout_feature_mask_t mask); |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| /* |
| #define PANGO_OT_ALL_GLYPHS ((guint) 0xFFFF) |
| |
| */ |
| |
| HB_END_DECLS(); |
| |
| #endif /* HB_OT_LAYOUT_H */ |
