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 **/
37hb_subset_input_t *
38hb_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 **/
100hb_subset_input_t *
101hb_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 **/
112void
113hb_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 **/
132HB_EXTERN hb_set_t *
133hb_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 **/
144HB_EXTERN hb_set_t *
145hb_subset_input_glyph_set (hb_subset_input_t *subset_input)
146{
147 return subset_input->glyphs;
148}
149
150HB_EXTERN hb_set_t *
151hb_subset_input_nameid_set (hb_subset_input_t *subset_input)
152{
153 return subset_input->name_ids;
154}
155
156HB_EXTERN hb_set_t *
157hb_subset_input_namelangid_set (hb_subset_input_t *subset_input)
158{
159 return subset_input->name_languages;
160}
161
162HB_EXTERN hb_set_t *
163hb_subset_input_drop_tables_set (hb_subset_input_t *subset_input)
164{
165 return subset_input->drop_tables;
166}
167
168HB_EXTERN void
169hb_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
175HB_EXTERN hb_bool_t
176hb_subset_input_get_drop_hints (hb_subset_input_t *subset_input)
177{
178 return subset_input->drop_hints;
179}
180
181HB_EXTERN void
182hb_subset_input_set_desubroutinize (hb_subset_input_t *subset_input,
183 hb_bool_t desubroutinize)
184{
185 subset_input->desubroutinize = desubroutinize;
186}
187
188HB_EXTERN hb_bool_t
189hb_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 **/
200HB_EXTERN void
201hb_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 **/
212HB_EXTERN hb_bool_t
213hb_subset_input_get_retain_gids (hb_subset_input_t *subset_input)
214{
215 return subset_input->retain_gids;
216}
217
218HB_EXTERN void
219hb_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
225HB_EXTERN hb_bool_t
226hb_subset_input_get_name_legacy (hb_subset_input_t *subset_input)
227{
228 return subset_input->name_legacy;
229}
230