1 /*
2 * Copyright © 2021 Khaled Hosny
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
25 #include "hb-test.h"
26
27 #include <hb.h>
28 #include <hb-ot.h>
29
30 #define BEGIN(tag, idx) \
31 hb_ot_layout_lookup_collect_glyphs (face, tag, idx, before, input, after, output) \
32
33 #define END() \
34 hb_set_clear (before); \
35 hb_set_clear (input); \
36 hb_set_clear (after); \
37 hb_set_clear (output)
38
39 static void
40 test_ot_layout_lookup_collect_glyphs_source_sans (void)
41 {
42 hb_face_t *face = hb_test_open_font_file ("fonts/SourceSansPro-Regular.otf");
43
44 hb_set_t *before = hb_set_create();
45 hb_set_t *input = hb_set_create();
46 hb_set_t *after = hb_set_create();
47 hb_set_t *output = hb_set_create();
48 hb_codepoint_t g = HB_SET_VALUE_INVALID;
49
50 /* SingleSubst */
51 BEGIN(HB_OT_TAG_GSUB, 0);
52 g_assert_cmpuint (0, ==, hb_set_get_population (before));
53 g_assert_cmpuint (684, ==, hb_set_get_population (input));
54 g = HB_SET_VALUE_INVALID;
55 g_assert (hb_set_next (input, &g));
56 g_assert_cmpuint (54, ==, g);
57 g_assert_cmpuint (0, ==, hb_set_get_population (after));
58 g_assert_cmpuint (372, ==, hb_set_get_population (output));
59 g = HB_SET_VALUE_INVALID;
60 g_assert (hb_set_next (output, &g));
61 g_assert_cmpuint (574, ==, g);
62 END();
63
64 /* AlternateSubst */
65 BEGIN(HB_OT_TAG_GSUB, 1);
66 g_assert_cmpuint (0, ==, hb_set_get_population (before));
67
68 g_assert_cmpuint (143, ==, hb_set_get_population (input));
69 g = HB_SET_VALUE_INVALID;
70 g_assert (hb_set_next (input, &g));
71 g_assert_cmpuint (2, ==, g);
72
73 g_assert_cmpuint (0, ==, hb_set_get_population (after));
74
75 g_assert_cmpuint (319, ==, hb_set_get_population (output));
76 g = HB_SET_VALUE_INVALID;
77 g_assert (hb_set_next (output, &g));
78 g_assert_cmpuint (519, ==, g);
79 END();
80
81 /* MultipleSubst */
82 BEGIN(HB_OT_TAG_GSUB, 7);
83 g_assert_cmpuint (0, ==, hb_set_get_population (before));
84
85 g_assert_cmpuint (10, ==, hb_set_get_population (input));
86 g = HB_SET_VALUE_INVALID;
87 g_assert (hb_set_next (input, &g));
88 g_assert_cmpuint (92, ==, g);
89
90 g_assert_cmpuint (0, ==, hb_set_get_population (after));
91
92 g_assert_cmpuint (9, ==, hb_set_get_population (output));
93 g = HB_SET_VALUE_INVALID;
94 g_assert (hb_set_next (output, &g));
95 g_assert_cmpuint (6, ==, g);
96 END();
97
98 /* LigatureSubst */
99 BEGIN(HB_OT_TAG_GSUB, 10);
100 g_assert_cmpuint (0, ==, hb_set_get_population (before));
101
102 g_assert_cmpuint (14, ==, hb_set_get_population (input));
103 g = HB_SET_VALUE_INVALID;
104 g_assert (hb_set_next (input, &g));
105 g_assert_cmpuint (1823, ==, g);
106
107 g_assert_cmpuint (0, ==, hb_set_get_population (after));
108
109 g_assert_cmpuint (22, ==, hb_set_get_population (output));
110 g = HB_SET_VALUE_INVALID;
111 g_assert (hb_set_next (output, &g));
112 g_assert_cmpuint (1897, ==, g);
113 END();
114
115 /* ChainContextSubstFormat3 */
116 BEGIN(HB_OT_TAG_GSUB, 8);
117 g_assert_cmpuint (0, ==, hb_set_get_population (before));
118
119 g_assert_cmpuint (10, ==, hb_set_get_population (input));
120 g = HB_SET_VALUE_INVALID;
121 g_assert (hb_set_next (input, &g));
122 g_assert_cmpuint (92, ==, g);
123
124 g_assert_cmpuint (2, ==, hb_set_get_population (after));
125 g = HB_SET_VALUE_INVALID;
126 g_assert (hb_set_next (after, &g));
127 g_assert_cmpuint (1826, ==, g);
128 g_assert (hb_set_next (after, &g));
129 g_assert_cmpuint (1837, ==, g);
130
131 g_assert_cmpuint (9, ==, hb_set_get_population (output));
132 g = HB_SET_VALUE_INVALID;
133 g_assert (hb_set_next (output, &g));
134 g_assert_cmpuint (6, ==, g);
135 END();
136
137 /* ChainContextSubstFormat3 */
138 BEGIN(HB_OT_TAG_GSUB, 13);
139 g_assert_cmpuint (771, ==, hb_set_get_population (before));
140 g = HB_SET_VALUE_INVALID;
141 g_assert (hb_set_next (before, &g));
142 g_assert_cmpuint (2, ==, g);
143
144 g_assert_cmpuint (28, ==, hb_set_get_population (input));
145 g = HB_SET_VALUE_INVALID;
146 g_assert (hb_set_next (input, &g));
147 g_assert_cmpuint (1823, ==, g);
148
149 g_assert_cmpuint (0, ==, hb_set_get_population (after));
150
151 g_assert_cmpuint (48, ==, hb_set_get_population (output));
152 g = HB_SET_VALUE_INVALID;
153 g_assert (hb_set_next (output, &g));
154 g_assert_cmpuint (325, ==, g);
155 END();
156
157 /* MarkBasePos */
158 BEGIN(HB_OT_TAG_GPOS, 0);
159 g_assert_cmpuint (0, ==, hb_set_get_population (before));
160
161 g_assert_cmpuint (179, ==, hb_set_get_population (input));
162 g = HB_SET_VALUE_INVALID;
163 g_assert (hb_set_next (input, &g));
164 g_assert_cmpuint (28, ==, g);
165
166 g_assert_cmpuint (0, ==, hb_set_get_population (after));
167 g_assert_cmpuint (0, ==, hb_set_get_population (output));
168 END();
169
170 /* MarkMarkPos */
171 BEGIN(HB_OT_TAG_GPOS, 9);
172 g_assert_cmpuint (0, ==, hb_set_get_population (before));
173
174 g_assert_cmpuint (48, ==, hb_set_get_population (input));
175 g = HB_SET_VALUE_INVALID;
176 g_assert (hb_set_next (input, &g));
177 g_assert_cmpuint (1823, ==, g);
178
179 g_assert_cmpuint (0, ==, hb_set_get_population (after));
180 g_assert_cmpuint (0, ==, hb_set_get_population (output));
181 END();
182
183 /* PairPos */
184 BEGIN(HB_OT_TAG_GPOS, 10);
185 g_assert_cmpuint (0, ==, hb_set_get_population (before));
186
187 g_assert_cmpuint (1426, ==, hb_set_get_population (input));
188 g = HB_SET_VALUE_INVALID;
189 g_assert (hb_set_next (input, &g));
190 g_assert_cmpuint (2, ==, g);
191
192 g_assert_cmpuint (0, ==, hb_set_get_population (after));
193 g_assert_cmpuint (0, ==, hb_set_get_population (output));
194 END();
195
196 hb_face_destroy (face);
197 face = hb_test_open_font_file ("fonts/SourceHanSans-Regular.41,3041,4C2E.otf");
198
199 /* SinglePosFormat2 */
200 BEGIN(HB_OT_TAG_GPOS, 1);
201 g_assert_cmpuint (0, ==, hb_set_get_population (before));
202
203 g_assert_cmpuint (1, ==, hb_set_get_population (input));
204 g = HB_SET_VALUE_INVALID;
205 g_assert (hb_set_next (input, &g));
206 g_assert_cmpuint (4, ==, g);
207
208 g_assert_cmpuint (0, ==, hb_set_get_population (after));
209 g_assert_cmpuint (0, ==, hb_set_get_population (output));
210 END();
211
212 hb_face_destroy (face);
213 hb_set_destroy (before);
214 hb_set_destroy (input);
215 hb_set_destroy (after);
216 hb_set_destroy (output);
217 }
218
219 static void
220 test_ot_layout_lookup_collect_glyphs_noto_nastaliq (void)
221 {
222 hb_face_t *face = hb_test_open_font_file ("fonts/NotoNastaliqUrdu-Regular.ttf");
223
224 hb_set_t *before = hb_set_create();
225 hb_set_t *input = hb_set_create();
226 hb_set_t *after = hb_set_create();
227 hb_set_t *output = hb_set_create();
228 hb_codepoint_t g = HB_SET_VALUE_INVALID;
229
230 /* ExtensionSubst -> ContextSubstFormat1 */
231 BEGIN(HB_OT_TAG_GSUB, 9);
232 g_assert_cmpuint (0, ==, hb_set_get_population (before));
233
234 g_assert_cmpuint (3, ==, hb_set_get_population (input));
235 g = HB_SET_VALUE_INVALID;
236 g_assert (hb_set_next (input, &g));
237 g_assert_cmpuint (228, ==, g);
238 g_assert (hb_set_next (input, &g));
239 g_assert_cmpuint (416, ==, g);
240 g_assert (hb_set_next (input, &g));
241 g_assert_cmpuint (441, ==, g);
242
243 g_assert_cmpuint (0, ==, hb_set_get_population (after));
244
245 g_assert_cmpuint (3, ==, hb_set_get_population (output));
246 g = HB_SET_VALUE_INVALID;
247 g_assert (hb_set_next (output, &g));
248 g_assert_cmpuint (267, ==, g);
249 g_assert (hb_set_next (output, &g));
250 g_assert_cmpuint (268, ==, g);
251 g_assert (hb_set_next (output, &g));
252 g_assert_cmpuint (279, ==, g);
253 END();
254
255 /* ExtensionSubst -> SingleSubst */
256 BEGIN(HB_OT_TAG_GSUB, 10);
257 g_assert_cmpuint (0, ==, hb_set_get_population (before));
258
259 g_assert_cmpuint (3, ==, hb_set_get_population (input));
260 g = HB_SET_VALUE_INVALID;
261 g_assert (hb_set_next (input, &g));
262 g_assert_cmpuint (228, ==, g);
263 g_assert (hb_set_next (input, &g));
264 g_assert_cmpuint (416, ==, g);
265 g_assert (hb_set_next (input, &g));
266 g_assert_cmpuint (441, ==, g);
267
268 g_assert_cmpuint (0, ==, hb_set_get_population (after));
269
270 g_assert_cmpuint (3, ==, hb_set_get_population (output));
271 g = HB_SET_VALUE_INVALID;
272 g_assert (hb_set_next (output, &g));
273 g_assert_cmpuint (267, ==, g);
274 g_assert (hb_set_next (output, &g));
275 g_assert_cmpuint (268, ==, g);
276 g_assert (hb_set_next (output, &g));
277 g_assert_cmpuint (279, ==, g);
278 END();
279
280 /* ExtensionSubst -> ChainContextSubstFormat2 */
281 BEGIN(HB_OT_TAG_GSUB, 16);
282 g_assert_cmpuint (16, ==, hb_set_get_population (before));
283 g = HB_SET_VALUE_INVALID;
284 g_assert (hb_set_next (before, &g));
285 g_assert_cmpuint (74, ==, g);
286
287 g_assert_cmpuint (27, ==, hb_set_get_population (input));
288 g = HB_SET_VALUE_INVALID;
289 g_assert (hb_set_next (input, &g));
290 g_assert_cmpuint (276, ==, g);
291
292 g_assert_cmpuint (14, ==, hb_set_get_population (after));
293 g = HB_SET_VALUE_INVALID;
294 g_assert (hb_set_next (after, &g));
295 g_assert_cmpuint (252, ==, g);
296
297 g_assert_cmpuint (43, ==, hb_set_get_population (output));
298 g = HB_SET_VALUE_INVALID;
299 g_assert (hb_set_next (output, &g));
300 g_assert_cmpuint (74, ==, g);
301 END();
302
303 /* ExtensionSubst -> ContextSubstFormat2 */
304 BEGIN(HB_OT_TAG_GSUB, 39);
305 g_assert_cmpuint (0, ==, hb_set_get_population (before));
306
307 g_assert_cmpuint (246, ==, hb_set_get_population (input));
308 g = HB_SET_VALUE_INVALID;
309 g_assert (hb_set_next (input, &g));
310 g_assert_cmpuint (252, ==, g);
311
312 g_assert_cmpuint (0, ==, hb_set_get_population (after));
313
314 g_assert_cmpuint (258, ==, hb_set_get_population (output));
315 g = HB_SET_VALUE_INVALID;
316 g_assert (hb_set_next (output, &g));
317 g_assert_cmpuint (74, ==, g);
318 END();
319
320
321 /* CursivePos */
322 BEGIN(HB_OT_TAG_GPOS, 0);
323 g_assert_cmpuint (0, ==, hb_set_get_population (before));
324
325 g_assert_cmpuint (616, ==, hb_set_get_population (input));
326 g = HB_SET_VALUE_INVALID;
327 g_assert (hb_set_next (input, &g));
328 g_assert_cmpuint (228, ==, g);
329
330 g_assert_cmpuint (0, ==, hb_set_get_population (after));
331 g_assert_cmpuint (0, ==, hb_set_get_population (output));
332 END();
333
334 /* ExtensionSubst -> MarkLigPos */
335 BEGIN(HB_OT_TAG_GPOS, 13);
336 g_assert_cmpuint (0, ==, hb_set_get_population (before));
337
338 g_assert_cmpuint (46, ==, hb_set_get_population (input));
339 g = HB_SET_VALUE_INVALID;
340 g_assert (hb_set_next (input, &g));
341 g_assert_cmpuint (1004, ==, g);
342
343 g_assert_cmpuint (0, ==, hb_set_get_population (after));
344 g_assert_cmpuint (0, ==, hb_set_get_population (output));
345 END();
346
347 /* ExtensionSubst -> SinglePosFormat1 */
348 BEGIN(HB_OT_TAG_GPOS, 17);
349 g_assert_cmpuint (0, ==, hb_set_get_population (before));
350
351 g_assert_cmpuint (242, ==, hb_set_get_population (input));
352 g = HB_SET_VALUE_INVALID;
353 g_assert (hb_set_next (input, &g));
354 g_assert_cmpuint (257, ==, g);
355
356 g_assert_cmpuint (0, ==, hb_set_get_population (after));
357 g_assert_cmpuint (0, ==, hb_set_get_population (output));
358 END();
359
360 hb_face_destroy (face);
361 hb_set_destroy (before);
362 hb_set_destroy (input);
363 hb_set_destroy (after);
364 hb_set_destroy (output);
365 }
366
367 static void
368 test_ot_layout_lookup_collect_glyphs_qahiri (void)
369 {
370 hb_face_t *face = hb_test_open_font_file ("fonts/Qahiri-Regular.ttf");
371
372 hb_set_t *before = hb_set_create();
373 hb_set_t *input = hb_set_create();
374 hb_set_t *after = hb_set_create();
375 hb_set_t *output = hb_set_create();
376 hb_codepoint_t g = HB_SET_VALUE_INVALID;
377
378 /* SingleSubstFormat1 */
379 BEGIN(HB_OT_TAG_GSUB, 0);
380 g_assert_cmpuint (0, ==, hb_set_get_population (before));
381
382 g_assert_cmpuint (4, ==, hb_set_get_population (input));
383 g = HB_SET_VALUE_INVALID;
384 g_assert (hb_set_next (input, &g));
385 g_assert_cmpuint (52, ==, g);
386 g_assert (hb_set_next (input, &g));
387 g_assert_cmpuint (60, ==, g);
388 g_assert (hb_set_next (input, &g));
389 g_assert_cmpuint (62, ==, g);
390 g_assert (hb_set_next (input, &g));
391 g_assert_cmpuint (159, ==, g);
392
393 g_assert_cmpuint (0, ==, hb_set_get_population (after));
394
395 g_assert_cmpuint (4, ==, hb_set_get_population (output));
396 g = HB_SET_VALUE_INVALID;
397 g_assert (hb_set_next (output, &g));
398 g_assert_cmpuint (53, ==, g);
399 g_assert (hb_set_next (output, &g));
400 g_assert_cmpuint (61, ==, g);
401 g_assert (hb_set_next (output, &g));
402 g_assert_cmpuint (63, ==, g);
403 g_assert (hb_set_next (output, &g));
404 g_assert_cmpuint (160, ==, g);
405 END();
406
407 /* ChainContextSubstFormat1 */
408 BEGIN(HB_OT_TAG_GSUB, 11);
409 g_assert_cmpuint (1, ==, hb_set_get_population (before));
410 g = HB_SET_VALUE_INVALID;
411 g_assert (hb_set_next (before, &g));
412 g_assert_cmpuint (39, ==, g);
413
414 g_assert_cmpuint (2, ==, hb_set_get_population (input));
415 g = HB_SET_VALUE_INVALID;
416 g_assert (hb_set_next (input, &g));
417 g_assert_cmpuint (154, ==, g);
418 g_assert (hb_set_next (input, &g));
419 g_assert_cmpuint (159, ==, g);
420
421 g_assert_cmpuint (1, ==, hb_set_get_population (after));
422 g = HB_SET_VALUE_INVALID;
423 g_assert (hb_set_next (after, &g));
424 g_assert_cmpuint (179, ==, g);
425
426 g_assert_cmpuint (2, ==, hb_set_get_population (output));
427 g = HB_SET_VALUE_INVALID;
428 g_assert (hb_set_next (output, &g));
429 g_assert_cmpuint (155, ==, g);
430 g_assert (hb_set_next (output, &g));
431 g_assert_cmpuint (162, ==, g);
432 END();
433
434 /* ContextSubstFormat3 */
435 BEGIN(HB_OT_TAG_GSUB, 31);
436 g_assert_cmpuint (0, ==, hb_set_get_population (before));
437
438 g_assert_cmpuint (4, ==, hb_set_get_population (input));
439 g = HB_SET_VALUE_INVALID;
440 g_assert (hb_set_next (input, &g));
441 g_assert_cmpuint (53, ==, g);
442
443 g_assert_cmpuint (0, ==, hb_set_get_population (after));
444
445 g_assert_cmpuint (4, ==, hb_set_get_population (output));
446 g = HB_SET_VALUE_INVALID;
447 g_assert (hb_set_next (output, &g));
448 g_assert_cmpuint (52, ==, g);
449 g_assert (hb_set_next (output, &g));
450 g_assert_cmpuint (60, ==, g);
451 g_assert (hb_set_next (output, &g));
452 g_assert_cmpuint (62, ==, g);
453 g_assert (hb_set_next (output, &g));
454 g_assert_cmpuint (159, ==, g);
455 END();
456
457 /* ReverseChainSingleSubst */
458 BEGIN(HB_OT_TAG_GSUB, 32);
459 g_assert_cmpuint (0, ==, hb_set_get_population (before));
460
461 g_assert_cmpuint (42, ==, hb_set_get_population (input));
462 g = HB_SET_VALUE_INVALID;
463 g_assert (hb_set_next (input, &g));
464 g_assert_cmpuint (47, ==, g);
465
466 g_assert_cmpuint (46, ==, hb_set_get_population (after));
467 g = HB_SET_VALUE_INVALID;
468 g_assert (hb_set_next (after, &g));
469 g_assert_cmpuint (61, ==, g);
470
471 g_assert_cmpuint (42, ==, hb_set_get_population (output));
472 g = HB_SET_VALUE_INVALID;
473 g_assert (hb_set_next (output, &g));
474 g_assert_cmpuint (463, ==, g);
475 END();
476
477 hb_face_destroy (face);
478 hb_set_destroy (before);
479 hb_set_destroy (input);
480 hb_set_destroy (after);
481 hb_set_destroy (output);
482 }
483
484 int
485 main (int argc, char **argv)
486 {
487 hb_test_init (&argc, &argv);
488 hb_test_add (test_ot_layout_lookup_collect_glyphs_source_sans);
489 hb_test_add (test_ot_layout_lookup_collect_glyphs_noto_nastaliq);
490 hb_test_add (test_ot_layout_lookup_collect_glyphs_qahiri);
491 return hb_test_run ();
492 }