1 /*
2 * Copyright © 2018 Google, 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 * Google Author(s): Garret Rieger, Rod Sheeter, Behdad Esfahbod
25 */
26
27 #include "hb-subset.hh"
28 #include "hb-set.hh"
29
30 /**
31 * hb_subset_input_create_or_fail:
32 *
33 * Return value: New subset input.
34 *
35 * Since: 1.8.0
36 **/
37 hb_subset_input_t *
hb_subset_input_create_or_fail()38 hb_subset_input_create_or_fail ()
39 {
40 hb_subset_input_t *input = hb_object_create<hb_subset_input_t>();
41
42 if (unlikely (!input))
43 return nullptr;
44
45 input->unicodes = hb_set_create ();
46 input->glyphs = hb_set_create ();
47 input->name_ids = hb_set_create ();
48 hb_set_add_range (input->name_ids, 0, 6);
49 input->name_languages = hb_set_create ();
50 hb_set_add (input->name_languages, 0x0409);
51 input->drop_tables = hb_set_create ();
52 input->drop_hints = false;
53 input->desubroutinize = false;
54 input->retain_gids = false;
55 input->name_legacy = false;
56
57 hb_tag_t default_drop_tables[] = {
58 // Layout disabled by default
59 HB_TAG ('G', 'S', 'U', 'B'),
60 HB_TAG ('G', 'P', 'O', 'S'),
61 HB_TAG ('G', 'D', 'E', 'F'),
62 HB_TAG ('m', 'o', 'r', 'x'),
63 HB_TAG ('m', 'o', 'r', 't'),
64 HB_TAG ('k', 'e', 'r', 'x'),
65 HB_TAG ('k', 'e', 'r', 'n'),
66
67 // Copied from fontTools:
68 HB_TAG ('B', 'A', 'S', 'E'),
69 HB_TAG ('J', 'S', 'T', 'F'),
70 HB_TAG ('D', 'S', 'I', 'G'),
71 HB_TAG ('E', 'B', 'D', 'T'),
72 HB_TAG ('E', 'B', 'L', 'C'),
73 HB_TAG ('E', 'B', 'S', 'C'),
74 HB_TAG ('S', 'V', 'G', ' '),
75 HB_TAG ('P', 'C', 'L', 'T'),
76 HB_TAG ('L', 'T', 'S', 'H'),
77 // Graphite tables
78 HB_TAG ('F', 'e', 'a', 't'),
79 HB_TAG ('G', 'l', 'a', 't'),
80 HB_TAG ('G', 'l', 'o', 'c'),
81 HB_TAG ('S', 'i', 'l', 'f'),
82 HB_TAG ('S', 'i', 'l', 'l'),
83 };
84
85 input->drop_tables->add_array (default_drop_tables, ARRAY_LENGTH (default_drop_tables));
86
87 return input;
88 }
89
90 /**
91 * hb_subset_input_reference: (skip)
92 * @subset_input: a subset_input.
93 *
94 *
95 *
96 * Return value:
97 *
98 * Since: 1.8.0
99 **/
100 hb_subset_input_t *
hb_subset_input_reference(hb_subset_input_t * subset_input)101 hb_subset_input_reference (hb_subset_input_t *subset_input)
102 {
103 return hb_object_reference (subset_input);
104 }
105
106 /**
107 * hb_subset_input_destroy:
108 * @subset_input: a subset_input.
109 *
110 * Since: 1.8.0
111 **/
112 void
hb_subset_input_destroy(hb_subset_input_t * subset_input)113 hb_subset_input_destroy (hb_subset_input_t *subset_input)
114 {
115 if (!hb_object_destroy (subset_input)) return;
116
117 hb_set_destroy (subset_input->unicodes);
118 hb_set_destroy (subset_input->glyphs);
119 hb_set_destroy (subset_input->name_ids);
120 hb_set_destroy (subset_input->name_languages);
121 hb_set_destroy (subset_input->drop_tables);
122
123 free (subset_input);
124 }
125
126 /**
127 * hb_subset_input_unicode_set:
128 * @subset_input: a subset_input.
129 *
130 * Since: 1.8.0
131 **/
132 HB_EXTERN hb_set_t *
hb_subset_input_unicode_set(hb_subset_input_t * subset_input)133 hb_subset_input_unicode_set (hb_subset_input_t *subset_input)
134 {
135 return subset_input->unicodes;
136 }
137
138 /**
139 * hb_subset_input_glyph_set:
140 * @subset_input: a subset_input.
141 *
142 * Since: 1.8.0
143 **/
144 HB_EXTERN hb_set_t *
hb_subset_input_glyph_set(hb_subset_input_t * subset_input)145 hb_subset_input_glyph_set (hb_subset_input_t *subset_input)
146 {
147 return subset_input->glyphs;
148 }
149
150 HB_EXTERN hb_set_t *
hb_subset_input_nameid_set(hb_subset_input_t * subset_input)151 hb_subset_input_nameid_set (hb_subset_input_t *subset_input)
152 {
153 return subset_input->name_ids;
154 }
155
156 HB_EXTERN hb_set_t *
hb_subset_input_namelangid_set(hb_subset_input_t * subset_input)157 hb_subset_input_namelangid_set (hb_subset_input_t *subset_input)
158 {
159 return subset_input->name_languages;
160 }
161
162 HB_EXTERN hb_set_t *
hb_subset_input_drop_tables_set(hb_subset_input_t * subset_input)163 hb_subset_input_drop_tables_set (hb_subset_input_t *subset_input)
164 {
165 return subset_input->drop_tables;
166 }
167
168 HB_EXTERN void
hb_subset_input_set_drop_hints(hb_subset_input_t * subset_input,hb_bool_t drop_hints)169 hb_subset_input_set_drop_hints (hb_subset_input_t *subset_input,
170 hb_bool_t drop_hints)
171 {
172 subset_input->drop_hints = drop_hints;
173 }
174
175 HB_EXTERN hb_bool_t
hb_subset_input_get_drop_hints(hb_subset_input_t * subset_input)176 hb_subset_input_get_drop_hints (hb_subset_input_t *subset_input)
177 {
178 return subset_input->drop_hints;
179 }
180
181 HB_EXTERN void
hb_subset_input_set_desubroutinize(hb_subset_input_t * subset_input,hb_bool_t desubroutinize)182 hb_subset_input_set_desubroutinize (hb_subset_input_t *subset_input,
183 hb_bool_t desubroutinize)
184 {
185 subset_input->desubroutinize = desubroutinize;
186 }
187
188 HB_EXTERN hb_bool_t
hb_subset_input_get_desubroutinize(hb_subset_input_t * subset_input)189 hb_subset_input_get_desubroutinize (hb_subset_input_t *subset_input)
190 {
191 return subset_input->desubroutinize;
192 }
193
194 /**
195 * hb_subset_input_set_retain_gids:
196 * @subset_input: a subset_input.
197 * @retain_gids: If true the subsetter will not renumber glyph ids.
198 * Since: 2.4.0
199 **/
200 HB_EXTERN void
hb_subset_input_set_retain_gids(hb_subset_input_t * subset_input,hb_bool_t retain_gids)201 hb_subset_input_set_retain_gids (hb_subset_input_t *subset_input,
202 hb_bool_t retain_gids)
203 {
204 subset_input->retain_gids = retain_gids;
205 }
206
207 /**
208 * hb_subset_input_get_retain_gids:
209 * Returns: value of retain_gids.
210 * Since: 2.4.0
211 **/
212 HB_EXTERN hb_bool_t
hb_subset_input_get_retain_gids(hb_subset_input_t * subset_input)213 hb_subset_input_get_retain_gids (hb_subset_input_t *subset_input)
214 {
215 return subset_input->retain_gids;
216 }
217
218 HB_EXTERN void
hb_subset_input_set_name_legacy(hb_subset_input_t * subset_input,hb_bool_t name_legacy)219 hb_subset_input_set_name_legacy (hb_subset_input_t *subset_input,
220 hb_bool_t name_legacy)
221 {
222 subset_input->name_legacy = name_legacy;
223 }
224
225 HB_EXTERN hb_bool_t
hb_subset_input_get_name_legacy(hb_subset_input_t * subset_input)226 hb_subset_input_get_name_legacy (hb_subset_input_t *subset_input)
227 {
228 return subset_input->name_legacy;
229 }
230