1 /*
2 * Copyright © 2018 Adobe 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 * Adobe Author(s): Michiharu Ariza
25 */
26
27 #include "hb-test.h"
28 #include "hb-subset-test.h"
29
30 /* Unit tests for CFF subsetting */
31
32 static void
33 test_subset_cff1_noop (void)
34 {
35 hb_face_t *face_abc = hb_test_open_font_file("fonts/SourceSansPro-Regular.abc.otf");
36
37 hb_set_t *codepoints = hb_set_create ();
38 hb_face_t *face_abc_subset;
39 hb_set_add (codepoints, 'a');
40 hb_set_add (codepoints, 'b');
41 hb_set_add (codepoints, 'c');
42 face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
43 hb_set_destroy (codepoints);
44
45 hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('C','F','F',' '));
46
47 hb_face_destroy (face_abc_subset);
48 hb_face_destroy (face_abc);
49 }
50
51 static void
52 test_subset_cff1 (void)
53 {
54 hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
55 hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansPro-Regular.ac.otf");
56
57 hb_set_t *codepoints = hb_set_create ();
58 hb_face_t *face_abc_subset;
59 hb_set_add (codepoints, 'a');
60 hb_set_add (codepoints, 'c');
61 face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
62 hb_set_destroy (codepoints);
63
64 hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('C','F','F',' '));
65
66 hb_face_destroy (face_abc_subset);
67 hb_face_destroy (face_abc);
68 hb_face_destroy (face_ac);
69 }
70
71 static void
72 test_subset_cff1_strip_hints (void)
73 {
74 hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
75 hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansPro-Regular.ac.nohints.otf");
76
77 hb_set_t *codepoints = hb_set_create ();
78 hb_subset_input_t *input;
79 hb_face_t *face_abc_subset;
80 hb_set_add (codepoints, 'a');
81 hb_set_add (codepoints, 'c');
82 input = hb_subset_test_create_input (codepoints);
83 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_NO_HINTING);
84 face_abc_subset = hb_subset_test_create_subset (face_abc, input);
85 hb_set_destroy (codepoints);
86
87 hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('C', 'F', 'F', ' '));
88
89 hb_face_destroy (face_abc_subset);
90 hb_face_destroy (face_abc);
91 hb_face_destroy (face_ac);
92 }
93
94 static void
95 test_subset_cff1_desubr (void)
96 {
97 hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
98 hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansPro-Regular.ac.nosubrs.otf");
99
100 hb_set_t *codepoints = hb_set_create ();
101 hb_subset_input_t *input;
102 hb_face_t *face_abc_subset;
103 hb_set_add (codepoints, 'a');
104 hb_set_add (codepoints, 'c');
105 input = hb_subset_test_create_input (codepoints);
106 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_DESUBROUTINIZE);
107 face_abc_subset = hb_subset_test_create_subset (face_abc, input);
108 hb_set_destroy (codepoints);
109
110 hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('C','F','F',' '));
111
112 hb_face_destroy (face_abc_subset);
113 hb_face_destroy (face_abc);
114 hb_face_destroy (face_ac);
115 }
116
117 static void
118 test_subset_cff1_desubr_strip_hints (void)
119 {
120 hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
121 hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansPro-Regular.ac.nosubrs.nohints.otf");
122
123 hb_set_t *codepoints = hb_set_create ();
124 hb_subset_input_t *input;
125 hb_face_t *face_abc_subset;
126 hb_set_add (codepoints, 'a');
127 hb_set_add (codepoints, 'c');
128 input = hb_subset_test_create_input (codepoints);
129 hb_subset_input_set_flags (input,
130 HB_SUBSET_FLAGS_NO_HINTING | HB_SUBSET_FLAGS_DESUBROUTINIZE);
131 face_abc_subset = hb_subset_test_create_subset (face_abc, input);
132 hb_set_destroy (codepoints);
133
134 hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('C', 'F', 'F', ' '));
135
136 hb_face_destroy (face_abc_subset);
137 hb_face_destroy (face_abc);
138 hb_face_destroy (face_ac);
139 }
140
141 static void
142 test_subset_cff1_j (void)
143 {
144 hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
145 hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.otf");
146
147 hb_set_t *codepoints = hb_set_create ();
148 hb_face_t *face_41_3041_4c2e_subset;
149 hb_set_add (codepoints, 0x41);
150 hb_set_add (codepoints, 0x4C2E);
151 face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, hb_subset_test_create_input (codepoints));
152 hb_set_destroy (codepoints);
153
154 hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));
155
156 hb_face_destroy (face_41_3041_4c2e_subset);
157 hb_face_destroy (face_41_3041_4c2e);
158 hb_face_destroy (face_41_4c2e);
159 }
160
161 static void
162 test_subset_cff1_j_strip_hints (void)
163 {
164 hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
165 hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.nohints.otf");
166
167 hb_set_t *codepoints = hb_set_create ();
168 hb_face_t *face_41_3041_4c2e_subset;
169 hb_subset_input_t *input;
170 hb_set_add (codepoints, 0x41);
171 hb_set_add (codepoints, 0x4C2E);
172 input = hb_subset_test_create_input (codepoints);
173 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_NO_HINTING);
174 face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, input);
175 hb_set_destroy (codepoints);
176
177 hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));
178
179 hb_face_destroy (face_41_3041_4c2e_subset);
180 hb_face_destroy (face_41_3041_4c2e);
181 hb_face_destroy (face_41_4c2e);
182 }
183
184 static void
185 test_subset_cff1_j_desubr (void)
186 {
187 hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
188 hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.nosubrs.otf");
189
190 hb_set_t *codepoints = hb_set_create ();
191 hb_face_t *face_41_3041_4c2e_subset;
192 hb_subset_input_t *input;
193 hb_set_add (codepoints, 0x41);
194 hb_set_add (codepoints, 0x4C2E);
195 input = hb_subset_test_create_input (codepoints);
196 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_DESUBROUTINIZE);
197 face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, input);
198 hb_set_destroy (codepoints);
199
200 hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));
201
202 hb_face_destroy (face_41_3041_4c2e_subset);
203 hb_face_destroy (face_41_3041_4c2e);
204 hb_face_destroy (face_41_4c2e);
205 }
206
207 static void
208 test_subset_cff1_j_desubr_strip_hints (void)
209 {
210 hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
211 hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.nosubrs.nohints.otf");
212
213 hb_set_t *codepoints = hb_set_create ();
214 hb_face_t *face_41_3041_4c2e_subset;
215 hb_subset_input_t *input;
216 hb_set_add (codepoints, 0x41);
217 hb_set_add (codepoints, 0x4C2E);
218 input = hb_subset_test_create_input (codepoints);
219 hb_subset_input_set_flags (input,
220 HB_SUBSET_FLAGS_NO_HINTING | HB_SUBSET_FLAGS_DESUBROUTINIZE);
221 face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, input);
222 hb_set_destroy (codepoints);
223
224 hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));
225
226 hb_face_destroy (face_41_3041_4c2e_subset);
227 hb_face_destroy (face_41_3041_4c2e);
228 hb_face_destroy (face_41_4c2e);
229 }
230
231 static void
232 test_subset_cff1_expert (void)
233 {
234 hb_face_t *face = hb_test_open_font_file ("fonts/cff1_expert.otf");
235 hb_face_t *face_subset = hb_test_open_font_file ("fonts/cff1_expert.2D,F6E9,FB00.otf");
236
237 hb_set_t *codepoints = hb_set_create ();
238 hb_face_t *face_test;
239 hb_set_add (codepoints, 0x2D);
240 hb_set_add (codepoints, 0xF6E9);
241 hb_set_add (codepoints, 0xFB00);
242 face_test = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
243 hb_set_destroy (codepoints);
244
245 hb_subset_test_check (face_subset, face_test, HB_TAG ('C','F','F',' '));
246
247 hb_face_destroy (face_test);
248 hb_face_destroy (face_subset);
249 hb_face_destroy (face);
250 }
251
252 static void
253 test_subset_cff1_seac (void)
254 {
255 hb_face_t *face = hb_test_open_font_file ("fonts/cff1_seac.otf");
256 hb_face_t *face_subset = hb_test_open_font_file ("fonts/cff1_seac.C0.otf");
257 hb_face_t *face_test;
258
259 hb_set_t *codepoints = hb_set_create ();
260 hb_set_add (codepoints, 0xC0); /* Agrave */
261 face_test = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
262 hb_set_destroy (codepoints);
263
264 hb_subset_test_check (face_subset, face_test, HB_TAG ('C','F','F',' '));
265
266 hb_face_destroy (face_test);
267 hb_face_destroy (face_subset);
268 hb_face_destroy (face);
269 }
270
271 static void
272 test_subset_cff1_dotsection (void)
273 {
274 hb_face_t *face = hb_test_open_font_file ("fonts/cff1_dotsect.otf");
275 hb_face_t *face_subset = hb_test_open_font_file ("fonts/cff1_dotsect.nohints.otf");
276
277 hb_set_t *codepoints = hb_set_create ();
278 hb_subset_input_t *input;
279 hb_face_t *face_test;
280 hb_set_add (codepoints, 0x69); /* i */
281 input = hb_subset_test_create_input (codepoints);
282 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_NO_HINTING);
283 face_test = hb_subset_test_create_subset (face, input);
284 hb_set_destroy (codepoints);
285
286 hb_subset_test_check (face_subset, face_test, HB_TAG ('C','F','F',' '));
287
288 hb_face_destroy (face_test);
289 hb_face_destroy (face_subset);
290 hb_face_destroy (face);
291 }
292
293 static void
294 test_subset_cff1_retaingids (void)
295 {
296 hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
297 hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansPro-Regular.ac.retaingids.otf");
298
299 hb_set_t *codepoints = hb_set_create ();
300 hb_subset_input_t *input;
301 hb_face_t *face_abc_subset;
302 hb_set_add (codepoints, 'a');
303 hb_set_add (codepoints, 'c');
304 input = hb_subset_test_create_input (codepoints);
305 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_RETAIN_GIDS);
306 face_abc_subset = hb_subset_test_create_subset (face_abc, input);
307 hb_set_destroy (codepoints);
308
309 hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('C','F','F',' '));
310
311 hb_face_destroy (face_abc_subset);
312 hb_face_destroy (face_abc);
313 hb_face_destroy (face_ac);
314 }
315
316 static void
317 test_subset_cff1_j_retaingids (void)
318 {
319 hb_face_t *face_41_3041_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
320 hb_face_t *face_41_4c2e = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,4C2E.retaingids.otf");
321
322 hb_set_t *codepoints = hb_set_create ();
323 hb_subset_input_t *input;
324 hb_face_t *face_41_3041_4c2e_subset;
325 hb_set_add (codepoints, 0x41);
326 hb_set_add (codepoints, 0x4C2E);
327 input = hb_subset_test_create_input (codepoints);
328 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_RETAIN_GIDS);
329 face_41_3041_4c2e_subset = hb_subset_test_create_subset (face_41_3041_4c2e, input);
330 hb_set_destroy (codepoints);
331
332 hb_subset_test_check (face_41_4c2e, face_41_3041_4c2e_subset, HB_TAG ('C','F','F',' '));
333
334 hb_face_destroy (face_41_3041_4c2e_subset);
335 hb_face_destroy (face_41_3041_4c2e);
336 hb_face_destroy (face_41_4c2e);
337 }
338
339 #ifdef HB_EXPERIMENTAL_API
340 static void
341 test_subset_cff1_iftb_requirements (void)
342 {
343 hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.otf");
344 hb_face_t *face_long_off = hb_test_open_font_file ("fonts/SourceSansPro-Regular.abc.long_off.otf");
345
346 hb_set_t *codepoints = hb_set_create();
347 hb_face_t *face_abc_subset;
348 hb_set_add (codepoints, 97);
349 hb_set_add (codepoints, 98);
350 hb_set_add (codepoints, 99);
351
352 hb_subset_input_t *input = hb_subset_test_create_input (codepoints);
353 hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_IFTB_REQUIREMENTS);
354 face_abc_subset = hb_subset_test_create_subset (face_abc, input);
355 hb_set_destroy (codepoints);
356
357 hb_subset_test_check (face_long_off, face_abc_subset, HB_TAG ('C','F','F', ' '));
358
359 hb_face_destroy (face_abc_subset);
360 hb_face_destroy (face_abc);
361 hb_face_destroy (face_long_off);
362
363 }
364 #endif
365
366
367 int
368 main (int argc, char **argv)
369 {
370 hb_test_init (&argc, &argv);
371
372 hb_test_add (test_subset_cff1_noop);
373 hb_test_add (test_subset_cff1);
374 hb_test_add (test_subset_cff1_strip_hints);
375 hb_test_add (test_subset_cff1_desubr);
376 hb_test_add (test_subset_cff1_desubr_strip_hints);
377 hb_test_add (test_subset_cff1_j);
378 hb_test_add (test_subset_cff1_j_strip_hints);
379 hb_test_add (test_subset_cff1_j_desubr);
380 hb_test_add (test_subset_cff1_j_desubr_strip_hints);
381 hb_test_add (test_subset_cff1_expert);
382 hb_test_add (test_subset_cff1_seac);
383 hb_test_add (test_subset_cff1_dotsection);
384 hb_test_add (test_subset_cff1_retaingids);
385 hb_test_add (test_subset_cff1_j_retaingids);
386
387 #ifdef HB_EXPERIMENTAL_API
388 hb_test_add (test_subset_cff1_iftb_requirements);
389 #endif
390
391 return hb_test_run ();
392 }