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comparison mupdf-source/thirdparty/harfbuzz/src/hb-face.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*
2 * Copyright © 2009 Red Hat, Inc.
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 * Red Hat Author(s): Behdad Esfahbod
25 */
26
27 #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
28 #error "Include <hb.h> instead."
29 #endif
30
31 #ifndef HB_FACE_H
32 #define HB_FACE_H
33
34 #include "hb-common.h"
35 #include "hb-blob.h"
36 #include "hb-set.h"
37
38 HB_BEGIN_DECLS
39
40
41 HB_EXTERN unsigned int
42 hb_face_count (hb_blob_t *blob);
43
44
45 /*
46 * hb_face_t
47 */
48
49 /**
50 * hb_face_t:
51 *
52 * Data type for holding font faces.
53 *
54 **/
55 typedef struct hb_face_t hb_face_t;
56
57 HB_EXTERN hb_face_t *
58 hb_face_create (hb_blob_t *blob,
59 unsigned int index);
60
61 /**
62 * hb_reference_table_func_t:
63 * @face: an #hb_face_t to reference table for
64 * @tag: the tag of the table to reference
65 * @user_data: User data pointer passed by the caller
66 *
67 * Callback function for hb_face_create_for_tables().
68 *
69 * Return value: (transfer full): A pointer to the @tag table within @face
70 *
71 * Since: 0.9.2
72 */
73
74 typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data);
75
76 /* calls destroy() when not needing user_data anymore */
77 HB_EXTERN hb_face_t *
78 hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
79 void *user_data,
80 hb_destroy_func_t destroy);
81
82 HB_EXTERN hb_face_t *
83 hb_face_get_empty (void);
84
85 HB_EXTERN hb_face_t *
86 hb_face_reference (hb_face_t *face);
87
88 HB_EXTERN void
89 hb_face_destroy (hb_face_t *face);
90
91 HB_EXTERN hb_bool_t
92 hb_face_set_user_data (hb_face_t *face,
93 hb_user_data_key_t *key,
94 void * data,
95 hb_destroy_func_t destroy,
96 hb_bool_t replace);
97
98 HB_EXTERN void *
99 hb_face_get_user_data (const hb_face_t *face,
100 hb_user_data_key_t *key);
101
102 HB_EXTERN void
103 hb_face_make_immutable (hb_face_t *face);
104
105 HB_EXTERN hb_bool_t
106 hb_face_is_immutable (const hb_face_t *face);
107
108
109 HB_EXTERN hb_blob_t *
110 hb_face_reference_table (const hb_face_t *face,
111 hb_tag_t tag);
112
113 HB_EXTERN hb_blob_t *
114 hb_face_reference_blob (hb_face_t *face);
115
116 HB_EXTERN void
117 hb_face_set_index (hb_face_t *face,
118 unsigned int index);
119
120 HB_EXTERN unsigned int
121 hb_face_get_index (const hb_face_t *face);
122
123 HB_EXTERN void
124 hb_face_set_upem (hb_face_t *face,
125 unsigned int upem);
126
127 HB_EXTERN unsigned int
128 hb_face_get_upem (const hb_face_t *face);
129
130 HB_EXTERN void
131 hb_face_set_glyph_count (hb_face_t *face,
132 unsigned int glyph_count);
133
134 HB_EXTERN unsigned int
135 hb_face_get_glyph_count (const hb_face_t *face);
136
137 HB_EXTERN unsigned int
138 hb_face_get_table_tags (const hb_face_t *face,
139 unsigned int start_offset,
140 unsigned int *table_count, /* IN/OUT */
141 hb_tag_t *table_tags /* OUT */);
142
143
144 /*
145 * Character set.
146 */
147
148 HB_EXTERN void
149 hb_face_collect_unicodes (hb_face_t *face,
150 hb_set_t *out);
151
152 HB_EXTERN void
153 hb_face_collect_variation_selectors (hb_face_t *face,
154 hb_set_t *out);
155
156 HB_EXTERN void
157 hb_face_collect_variation_unicodes (hb_face_t *face,
158 hb_codepoint_t variation_selector,
159 hb_set_t *out);
160
161
162 /*
163 * Builder face.
164 */
165
166 HB_EXTERN hb_face_t *
167 hb_face_builder_create (void);
168
169 HB_EXTERN hb_bool_t
170 hb_face_builder_add_table (hb_face_t *face,
171 hb_tag_t tag,
172 hb_blob_t *blob);
173
174 HB_EXTERN void
175 hb_face_builder_sort_tables (hb_face_t *face,
176 const hb_tag_t *tags);
177
178
179 HB_END_DECLS
180
181 #endif /* HB_FACE_H */