2 * Copyright © 2011 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
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.
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
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.
24 * Google Author(s): Behdad Esfahbod
29 /* Unit tests for hb-font.h */
32 static const char test_data[] = "test\0data";
36 test_face_empty (void)
38 g_assert (hb_face_get_empty ());
39 g_assert (hb_face_get_empty () == hb_face_create (hb_blob_get_empty (), 0));
40 g_assert (hb_face_get_empty () == hb_face_create (NULL, 0));
42 g_assert (hb_face_reference_table (hb_face_get_empty (), HB_TAG ('h','e','a','d')) == hb_blob_get_empty ());
44 g_assert_cmpint (hb_face_get_upem (hb_face_get_empty ()), ==, 1000);
48 test_face_create (void)
53 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
54 face = hb_face_create (blob, 0);
55 hb_blob_destroy (blob);
57 g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ());
59 g_assert_cmpint (hb_face_get_upem (face), ==, 1000);
61 hb_face_destroy (face);
66 free_up (void *user_data)
68 int *freed = (int *) user_data;
76 get_table (hb_face_t *face, hb_tag_t tag, void *user_data)
78 if (tag == HB_TAG ('a','b','c','d'))
79 return hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
81 return hb_blob_get_empty ();
85 test_face_createfortables (void)
93 face = hb_face_create_for_tables (get_table, &freed, free_up);
96 g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ());
98 blob = hb_face_reference_table (face, HB_TAG ('a','b','c','d'));
99 g_assert (blob != hb_blob_get_empty ());
101 data = hb_blob_get_data (blob, &len);
102 g_assert_cmpint (len, ==, sizeof (test_data));
103 g_assert (0 == memcmp (data, test_data, sizeof (test_data)));
104 hb_blob_destroy (blob);
106 g_assert_cmpint (hb_face_get_upem (face), ==, 1000);
108 hb_face_destroy (face);
113 _test_font_nil_funcs (hb_font_t *font)
116 hb_glyph_extents_t extents;
119 g_assert (!hb_font_get_contour_point (font, 17, 2, &x, &y));
120 g_assert_cmpint (x, ==, 0);
121 g_assert_cmpint (y, ==, 0);
124 hb_font_get_glyph_advance (font, 17, &x, &y);
125 g_assert_cmpint (x, ==, 0);
126 g_assert_cmpint (y, ==, 0);
128 extents.x_bearing = extents.y_bearing = 13;
129 extents.width = extents.height = 15;
130 hb_font_get_glyph_extents (font, 17, &extents);
131 g_assert_cmpint (extents.x_bearing, ==, 0);
132 g_assert_cmpint (extents.y_bearing, ==, 0);
133 g_assert_cmpint (extents.width, ==, 0);
134 g_assert_cmpint (extents.height, ==, 0);
136 g_assert (0 == hb_font_get_glyph (font, 17, 2));
139 hb_font_get_kerning (font, 17, 19, &x, &y);
140 g_assert_cmpint (x, ==, 0);
141 g_assert_cmpint (y, ==, 0);
145 _test_fontfuncs_nil (hb_font_funcs_t *ffuncs)
153 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
154 face = hb_face_create (blob, 0);
155 hb_blob_destroy (blob);
156 font = hb_font_create (face);
157 hb_face_destroy (face);
160 hb_font_set_funcs (font, ffuncs, &freed, free_up);
161 g_assert_cmpint (freed, ==, 0);
163 _test_font_nil_funcs (font);
165 subfont = hb_font_create_sub_font (font);
167 g_assert_cmpint (freed, ==, 0);
168 hb_font_destroy (font);
169 g_assert_cmpint (freed, ==, 0);
171 _test_font_nil_funcs (subfont);
173 hb_font_destroy (subfont);
174 g_assert_cmpint (freed, ==, 1);
178 test_fontfuncs_empty (void)
180 g_assert (hb_font_funcs_get_empty ());
181 g_assert (hb_font_funcs_is_immutable (hb_font_funcs_get_empty ()));
182 _test_fontfuncs_nil (hb_font_funcs_get_empty ());
186 test_fontfuncs_nil (void)
188 hb_font_funcs_t *ffuncs;
190 ffuncs = hb_font_funcs_create ();
192 g_assert (!hb_font_funcs_is_immutable (ffuncs));
193 _test_fontfuncs_nil (hb_font_funcs_get_empty ());
195 hb_font_funcs_destroy (ffuncs);
199 contour_point_func1 (hb_font_t *font, void *font_data,
200 hb_codepoint_t glyph, unsigned int point_index,
201 hb_position_t *x, hb_position_t *y,
219 contour_point_func2 (hb_font_t *font, void *font_data,
220 hb_codepoint_t glyph, unsigned int point_index,
221 hb_position_t *x, hb_position_t *y,
230 return hb_font_get_contour_point (hb_font_get_parent (font),
231 glyph, point_index, x, y);
235 glyph_advance_func1 (hb_font_t *font, void *font_data,
236 hb_codepoint_t glyph,
237 hb_position_t *x_advance, hb_position_t *y_advance,
247 test_fontfuncs_subclassing (void)
252 hb_font_funcs_t *ffuncs1;
253 hb_font_funcs_t *ffuncs2;
262 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
263 face = hb_face_create (blob, 0);
264 hb_blob_destroy (blob);
265 font1 = hb_font_create (face);
266 hb_face_destroy (face);
267 hb_font_set_scale (font1, 10, 10);
270 ffuncs1 = hb_font_funcs_create ();
271 hb_font_funcs_set_contour_point_func (ffuncs1, contour_point_func1, NULL, NULL);
272 hb_font_funcs_set_glyph_advance_func (ffuncs1, glyph_advance_func1, NULL, NULL);
273 hb_font_set_funcs (font1, ffuncs1, NULL, NULL);
274 hb_font_funcs_destroy (ffuncs1);
277 g_assert (hb_font_get_contour_point (font1, 1, 2, &x, &y));
278 g_assert_cmpint (x, ==, 2);
279 g_assert_cmpint (y, ==, 3);
280 g_assert (hb_font_get_contour_point (font1, 2, 5, &x, &y));
281 g_assert_cmpint (x, ==, 4);
282 g_assert_cmpint (y, ==, 5);
283 g_assert (!hb_font_get_contour_point (font1, 3, 7, &x, &y));
284 g_assert_cmpint (x, ==, 0);
285 g_assert_cmpint (y, ==, 0);
286 hb_font_get_glyph_advance (font1, 1, &x, &y);
287 g_assert_cmpint (x, ==, 8);
288 g_assert_cmpint (y, ==, 9);
289 hb_font_get_glyph_advance (font1, 2, &x, &y);
290 g_assert_cmpint (x, ==, 0);
291 g_assert_cmpint (y, ==, 0);
294 font2 = hb_font_create_sub_font (font1);
295 g_assert (hb_font_is_immutable (font1));
296 hb_font_destroy (font1);
298 /* setup font2 to override some funcs */
299 ffuncs2 = hb_font_funcs_create ();
300 hb_font_funcs_set_contour_point_func (ffuncs2, contour_point_func2, NULL, NULL);
301 hb_font_set_funcs (font2, ffuncs2, NULL, NULL);
302 hb_font_funcs_destroy (ffuncs2);
305 g_assert (hb_font_get_contour_point (font2, 1, 2, &x, &y));
306 g_assert_cmpint (x, ==, 6);
307 g_assert_cmpint (y, ==, 7);
308 g_assert (hb_font_get_contour_point (font2, 2, 5, &x, &y));
309 g_assert_cmpint (x, ==, 4);
310 g_assert_cmpint (y, ==, 5);
311 g_assert (!hb_font_get_contour_point (font2, 3, 7, &x, &y));
312 g_assert_cmpint (x, ==, 0);
313 g_assert_cmpint (y, ==, 0);
314 hb_font_get_glyph_advance (font2, 1, &x, &y);
315 g_assert_cmpint (x, ==, 8);
316 g_assert_cmpint (y, ==, 9);
317 hb_font_get_glyph_advance (font2, 2, &x, &y);
318 g_assert_cmpint (x, ==, 0);
319 g_assert_cmpint (y, ==, 0);
322 font3 = hb_font_create_sub_font (font2);
323 g_assert (hb_font_is_immutable (font2));
324 hb_font_destroy (font2);
326 /* setup font3 to override scale */
327 hb_font_set_scale (font3, 20, 30);
330 g_assert (hb_font_get_contour_point (font3, 1, 2, &x, &y));
331 g_assert_cmpint (x, ==, 6*2);
332 g_assert_cmpint (y, ==, 7*3);
333 g_assert (hb_font_get_contour_point (font3, 2, 5, &x, &y));
334 g_assert_cmpint (x, ==, 4*2);
335 g_assert_cmpint (y, ==, 5*3);
336 g_assert (!hb_font_get_contour_point (font3, 3, 7, &x, &y));
337 g_assert_cmpint (x, ==, 0*2);
338 g_assert_cmpint (y, ==, 0*3);
339 hb_font_get_glyph_advance (font3, 1, &x, &y);
340 g_assert_cmpint (x, ==, 8*2);
341 g_assert_cmpint (y, ==, 9*3);
342 hb_font_get_glyph_advance (font3, 2, &x, &y);
343 g_assert_cmpint (x, ==, 0*2);
344 g_assert_cmpint (y, ==, 0*3);
347 hb_font_destroy (font3);
352 test_font_empty (void)
354 g_assert (hb_font_get_empty ());
355 g_assert (hb_font_get_empty () == hb_font_create (hb_face_get_empty ()));
356 g_assert (hb_font_get_empty () == hb_font_create (NULL));
357 g_assert (hb_font_get_empty () == hb_font_create_sub_font (NULL));
358 g_assert (hb_font_is_immutable (hb_font_get_empty ()));
360 g_assert (hb_font_get_face (hb_font_get_empty ()) == hb_face_get_empty ());
361 g_assert (hb_font_get_parent (hb_font_get_empty ()) == NULL);
365 test_font_properties (void)
371 int x_scale, y_scale;
372 unsigned int x_ppem, y_ppem;
374 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
375 face = hb_face_create (blob, 0);
376 hb_blob_destroy (blob);
377 font = hb_font_create (face);
378 hb_face_destroy (face);
381 g_assert (hb_font_get_face (font) == face);
382 g_assert (hb_font_get_parent (font) == NULL);
387 hb_font_get_scale (font, NULL, NULL);
388 x_scale = y_scale = 13;
389 hb_font_get_scale (font, &x_scale, NULL);
390 g_assert_cmpint (x_scale, ==, 0);
391 x_scale = y_scale = 13;
392 hb_font_get_scale (font, NULL, &y_scale);
393 g_assert_cmpint (y_scale, ==, 0);
394 x_scale = y_scale = 13;
395 hb_font_get_scale (font, &x_scale, &y_scale);
396 g_assert_cmpint (x_scale, ==, 0);
397 g_assert_cmpint (y_scale, ==, 0);
399 hb_font_set_scale (font, 17, 19);
401 x_scale = y_scale = 13;
402 hb_font_get_scale (font, &x_scale, &y_scale);
403 g_assert_cmpint (x_scale, ==, 17);
404 g_assert_cmpint (y_scale, ==, 19);
409 hb_font_get_ppem (font, NULL, NULL);
410 x_ppem = y_ppem = 13;
411 hb_font_get_ppem (font, &x_ppem, NULL);
412 g_assert_cmpint (x_ppem, ==, 0);
413 x_ppem = y_ppem = 13;
414 hb_font_get_ppem (font, NULL, &y_ppem);
415 g_assert_cmpint (y_ppem, ==, 0);
416 x_ppem = y_ppem = 13;
417 hb_font_get_ppem (font, &x_ppem, &y_ppem);
418 g_assert_cmpint (x_ppem, ==, 0);
419 g_assert_cmpint (y_ppem, ==, 0);
421 hb_font_set_ppem (font, 17, 19);
423 x_ppem = y_ppem = 13;
424 hb_font_get_ppem (font, &x_ppem, &y_ppem);
425 g_assert_cmpint (x_ppem, ==, 17);
426 g_assert_cmpint (y_ppem, ==, 19);
429 /* Check immutable */
431 g_assert (!hb_font_is_immutable (font));
432 hb_font_make_immutable (font);
433 g_assert (hb_font_is_immutable (font));
435 hb_font_set_scale (font, 10, 12);
436 x_scale = y_scale = 13;
437 hb_font_get_scale (font, &x_scale, &y_scale);
438 g_assert_cmpint (x_scale, ==, 17);
439 g_assert_cmpint (y_scale, ==, 19);
441 hb_font_set_ppem (font, 10, 12);
442 x_ppem = y_ppem = 13;
443 hb_font_get_ppem (font, &x_ppem, &y_ppem);
444 g_assert_cmpint (x_ppem, ==, 17);
445 g_assert_cmpint (y_ppem, ==, 19);
449 subfont = hb_font_create_sub_font (font);
450 hb_font_destroy (font);
452 g_assert (hb_font_get_parent (subfont) == font);
453 g_assert (hb_font_get_face (subfont) == face);
456 x_scale = y_scale = 13;
457 hb_font_get_scale (subfont, &x_scale, &y_scale);
458 g_assert_cmpint (x_scale, ==, 17);
459 g_assert_cmpint (y_scale, ==, 19);
460 hb_font_set_scale (subfont, 10, 12);
461 x_scale = y_scale = 13;
462 hb_font_get_scale (subfont, &x_scale, &y_scale);
463 g_assert_cmpint (x_scale, ==, 10);
464 g_assert_cmpint (y_scale, ==, 12);
465 x_scale = y_scale = 13;
466 hb_font_get_scale (font, &x_scale, &y_scale);
467 g_assert_cmpint (x_scale, ==, 17);
468 g_assert_cmpint (y_scale, ==, 19);
471 x_ppem = y_ppem = 13;
472 hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
473 g_assert_cmpint (x_ppem, ==, 17);
474 g_assert_cmpint (y_ppem, ==, 19);
475 hb_font_set_ppem (subfont, 10, 12);
476 x_ppem = y_ppem = 13;
477 hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
478 g_assert_cmpint (x_ppem, ==, 10);
479 g_assert_cmpint (y_ppem, ==, 12);
480 x_ppem = y_ppem = 13;
481 hb_font_get_ppem (font, &x_ppem, &y_ppem);
482 g_assert_cmpint (x_ppem, ==, 17);
483 g_assert_cmpint (y_ppem, ==, 19);
485 hb_font_destroy (subfont);
489 main (int argc, char **argv)
491 hb_test_init (&argc, &argv);
493 hb_test_add (test_face_empty);
494 hb_test_add (test_face_create);
495 hb_test_add (test_face_createfortables);
497 hb_test_add (test_fontfuncs_empty);
498 hb_test_add (test_fontfuncs_nil);
499 hb_test_add (test_fontfuncs_subclassing);
501 hb_test_add (test_font_empty);
502 hb_test_add (test_font_properties);
504 return hb_test_run();