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)
115 hb_codepoint_t glyph;
117 hb_glyph_extents_t extents;
118 unsigned int upem = hb_face_get_upem (hb_font_get_face (font));
121 g_assert (!hb_font_get_glyph_contour_point (font, 17, 2, &x, &y));
122 g_assert_cmpint (x, ==, 0);
123 g_assert_cmpint (y, ==, 0);
125 x = hb_font_get_glyph_h_advance (font, 17);
126 g_assert_cmpint (x, ==, upem);
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);
137 g_assert (!hb_font_get_glyph (font, 17, 2, &glyph));
138 g_assert_cmpint (glyph, ==, 0);
140 x = hb_font_get_glyph_h_kerning (font, 17, 19);
141 g_assert_cmpint (x, ==, 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 g_assert (!hb_face_is_immutable (face));
157 font = hb_font_create (face);
159 g_assert (hb_face_is_immutable (face));
160 hb_face_destroy (face);
163 hb_font_set_funcs (font, ffuncs, &freed, free_up);
164 g_assert_cmpint (freed, ==, 0);
166 _test_font_nil_funcs (font);
168 subfont = hb_font_create_sub_font (font);
171 g_assert_cmpint (freed, ==, 0);
172 hb_font_destroy (font);
173 g_assert_cmpint (freed, ==, 0);
175 _test_font_nil_funcs (subfont);
177 hb_font_destroy (subfont);
178 g_assert_cmpint (freed, ==, 1);
182 test_fontfuncs_empty (void)
184 g_assert (hb_font_funcs_get_empty ());
185 g_assert (hb_font_funcs_is_immutable (hb_font_funcs_get_empty ()));
186 _test_fontfuncs_nil (hb_font_funcs_get_empty ());
190 test_fontfuncs_nil (void)
192 hb_font_funcs_t *ffuncs;
194 ffuncs = hb_font_funcs_create ();
196 g_assert (!hb_font_funcs_is_immutable (ffuncs));
197 _test_fontfuncs_nil (hb_font_funcs_get_empty ());
199 hb_font_funcs_destroy (ffuncs);
203 contour_point_func1 (hb_font_t *font, void *font_data,
204 hb_codepoint_t glyph, unsigned int point_index,
205 hb_position_t *x, hb_position_t *y,
223 contour_point_func2 (hb_font_t *font, void *font_data,
224 hb_codepoint_t glyph, unsigned int point_index,
225 hb_position_t *x, hb_position_t *y,
234 return hb_font_get_glyph_contour_point (hb_font_get_parent (font),
235 glyph, point_index, x, y);
239 glyph_h_advance_func1 (hb_font_t *font, void *font_data,
240 hb_codepoint_t glyph,
250 test_fontfuncs_subclassing (void)
255 hb_font_funcs_t *ffuncs1;
256 hb_font_funcs_t *ffuncs2;
265 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
266 face = hb_face_create (blob, 0);
267 hb_blob_destroy (blob);
268 font1 = hb_font_create (face);
269 hb_face_destroy (face);
270 hb_font_set_scale (font1, 10, 10);
273 ffuncs1 = hb_font_funcs_create ();
274 hb_font_funcs_set_glyph_contour_point_func (ffuncs1, contour_point_func1, NULL, NULL);
275 hb_font_funcs_set_glyph_h_advance_func (ffuncs1, glyph_h_advance_func1, NULL, NULL);
276 hb_font_set_funcs (font1, ffuncs1, NULL, NULL);
277 hb_font_funcs_destroy (ffuncs1);
280 g_assert (hb_font_get_glyph_contour_point_for_origin (font1, 1, 2, HB_DIRECTION_LTR, &x, &y));
281 g_assert_cmpint (x, ==, 2);
282 g_assert_cmpint (y, ==, 3);
283 g_assert (hb_font_get_glyph_contour_point_for_origin (font1, 2, 5, HB_DIRECTION_LTR, &x, &y));
284 g_assert_cmpint (x, ==, 4);
285 g_assert_cmpint (y, ==, 5);
286 g_assert (!hb_font_get_glyph_contour_point_for_origin (font1, 3, 7, HB_DIRECTION_RTL, &x, &y));
287 g_assert_cmpint (x, ==, 0);
288 g_assert_cmpint (y, ==, 0);
289 x = hb_font_get_glyph_h_advance (font1, 1);
290 g_assert_cmpint (x, ==, 8);
291 x = hb_font_get_glyph_h_advance (font1, 2);
292 g_assert_cmpint (x, ==, 0);
294 /* creating sub-font doesn't make the parent font immutable;
295 * making a font immutable however makes it's lineage immutable.
297 font2 = hb_font_create_sub_font (font1);
298 font3 = hb_font_create_sub_font (font2);
299 g_assert (!hb_font_is_immutable (font1));
300 g_assert (!hb_font_is_immutable (font2));
301 g_assert (!hb_font_is_immutable (font3));
302 hb_font_make_immutable (font3);
303 g_assert (hb_font_is_immutable (font1));
304 g_assert (hb_font_is_immutable (font2));
305 g_assert (hb_font_is_immutable (font3));
306 hb_font_destroy (font2);
307 hb_font_destroy (font3);
309 font2 = hb_font_create_sub_font (font1);
310 hb_font_destroy (font1);
312 /* setup font2 to override some funcs */
313 ffuncs2 = hb_font_funcs_create ();
314 hb_font_funcs_set_glyph_contour_point_func (ffuncs2, contour_point_func2, NULL, NULL);
315 hb_font_set_funcs (font2, ffuncs2, NULL, NULL);
316 hb_font_funcs_destroy (ffuncs2);
319 g_assert (hb_font_get_glyph_contour_point_for_origin (font2, 1, 2, HB_DIRECTION_LTR, &x, &y));
320 g_assert_cmpint (x, ==, 6);
321 g_assert_cmpint (y, ==, 7);
322 g_assert (hb_font_get_glyph_contour_point_for_origin (font2, 2, 5, HB_DIRECTION_RTL, &x, &y));
323 g_assert_cmpint (x, ==, 4);
324 g_assert_cmpint (y, ==, 5);
325 g_assert (!hb_font_get_glyph_contour_point_for_origin (font2, 3, 7, HB_DIRECTION_LTR, &x, &y));
326 g_assert_cmpint (x, ==, 0);
327 g_assert_cmpint (y, ==, 0);
328 x = hb_font_get_glyph_h_advance (font2, 1);
329 g_assert_cmpint (x, ==, 8);
330 x = hb_font_get_glyph_h_advance (font2, 2);
331 g_assert_cmpint (x, ==, 0);
333 /* setup font3 to override scale */
334 font3 = hb_font_create_sub_font (font2);
335 hb_font_set_scale (font3, 20, 30);
338 g_assert (hb_font_get_glyph_contour_point_for_origin (font3, 1, 2, HB_DIRECTION_RTL, &x, &y));
339 g_assert_cmpint (x, ==, 6*2);
340 g_assert_cmpint (y, ==, 7*3);
341 g_assert (hb_font_get_glyph_contour_point_for_origin (font3, 2, 5, HB_DIRECTION_LTR, &x, &y));
342 g_assert_cmpint (x, ==, 4*2);
343 g_assert_cmpint (y, ==, 5*3);
344 g_assert (!hb_font_get_glyph_contour_point_for_origin (font3, 3, 7, HB_DIRECTION_LTR, &x, &y));
345 g_assert_cmpint (x, ==, 0*2);
346 g_assert_cmpint (y, ==, 0*3);
347 x = hb_font_get_glyph_h_advance (font3, 1);
348 g_assert_cmpint (x, ==, 8*2);
349 x = hb_font_get_glyph_h_advance (font3, 2);
350 g_assert_cmpint (x, ==, 0*2);
353 hb_font_destroy (font3);
358 test_font_empty (void)
360 g_assert (hb_font_get_empty ());
361 g_assert (hb_font_get_empty () != hb_font_create (hb_face_get_empty ()));
362 g_assert (hb_font_get_empty () != hb_font_create (NULL));
363 g_assert (hb_font_get_empty () != hb_font_create_sub_font (NULL));
364 g_assert (hb_font_is_immutable (hb_font_get_empty ()));
366 g_assert (hb_font_get_face (hb_font_get_empty ()) == hb_face_get_empty ());
367 g_assert (hb_font_get_parent (hb_font_get_empty ()) == NULL);
371 test_font_properties (void)
377 int x_scale, y_scale;
378 unsigned int x_ppem, y_ppem;
381 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
382 face = hb_face_create (blob, 0);
383 hb_blob_destroy (blob);
384 font = hb_font_create (face);
385 hb_face_destroy (face);
388 g_assert (hb_font_get_face (font) == face);
389 g_assert (hb_font_get_parent (font) == hb_font_get_empty ());
390 subfont = hb_font_create_sub_font (font);
391 g_assert (hb_font_get_parent (subfont) == font);
392 hb_font_set_parent(subfont, NULL);
393 g_assert (hb_font_get_parent (subfont) == hb_font_get_empty());
394 hb_font_set_parent(subfont, font);
395 g_assert (hb_font_get_parent (subfont) == font);
396 hb_font_set_parent(subfont, NULL);
397 hb_font_make_immutable (subfont);
398 g_assert (hb_font_get_parent (subfont) == hb_font_get_empty());
399 hb_font_set_parent(subfont, font);
400 g_assert (hb_font_get_parent (subfont) == hb_font_get_empty());
401 hb_font_destroy (subfont);
406 upem = hb_face_get_upem (hb_font_get_face (font));
407 hb_font_get_scale (font, NULL, NULL);
408 x_scale = y_scale = 13;
409 hb_font_get_scale (font, &x_scale, NULL);
410 g_assert_cmpint (x_scale, ==, upem);
411 x_scale = y_scale = 13;
412 hb_font_get_scale (font, NULL, &y_scale);
413 g_assert_cmpint (y_scale, ==, upem);
414 x_scale = y_scale = 13;
415 hb_font_get_scale (font, &x_scale, &y_scale);
416 g_assert_cmpint (x_scale, ==, upem);
417 g_assert_cmpint (y_scale, ==, upem);
419 hb_font_set_scale (font, 17, 19);
421 x_scale = y_scale = 13;
422 hb_font_get_scale (font, &x_scale, &y_scale);
423 g_assert_cmpint (x_scale, ==, 17);
424 g_assert_cmpint (y_scale, ==, 19);
429 hb_font_get_ppem (font, NULL, NULL);
430 x_ppem = y_ppem = 13;
431 hb_font_get_ppem (font, &x_ppem, NULL);
432 g_assert_cmpint (x_ppem, ==, 0);
433 x_ppem = y_ppem = 13;
434 hb_font_get_ppem (font, NULL, &y_ppem);
435 g_assert_cmpint (y_ppem, ==, 0);
436 x_ppem = y_ppem = 13;
437 hb_font_get_ppem (font, &x_ppem, &y_ppem);
438 g_assert_cmpint (x_ppem, ==, 0);
439 g_assert_cmpint (y_ppem, ==, 0);
441 hb_font_set_ppem (font, 17, 19);
443 x_ppem = y_ppem = 13;
444 hb_font_get_ppem (font, &x_ppem, &y_ppem);
445 g_assert_cmpint (x_ppem, ==, 17);
446 g_assert_cmpint (y_ppem, ==, 19);
449 /* Check immutable */
451 g_assert (!hb_font_is_immutable (font));
452 hb_font_make_immutable (font);
453 g_assert (hb_font_is_immutable (font));
455 hb_font_set_scale (font, 10, 12);
456 x_scale = y_scale = 13;
457 hb_font_get_scale (font, &x_scale, &y_scale);
458 g_assert_cmpint (x_scale, ==, 17);
459 g_assert_cmpint (y_scale, ==, 19);
461 hb_font_set_ppem (font, 10, 12);
462 x_ppem = y_ppem = 13;
463 hb_font_get_ppem (font, &x_ppem, &y_ppem);
464 g_assert_cmpint (x_ppem, ==, 17);
465 g_assert_cmpint (y_ppem, ==, 19);
469 subfont = hb_font_create_sub_font (font);
470 hb_font_destroy (font);
472 g_assert (hb_font_get_parent (subfont) == font);
473 g_assert (hb_font_get_face (subfont) == face);
476 x_scale = y_scale = 13;
477 hb_font_get_scale (subfont, &x_scale, &y_scale);
478 g_assert_cmpint (x_scale, ==, 17);
479 g_assert_cmpint (y_scale, ==, 19);
480 hb_font_set_scale (subfont, 10, 12);
481 x_scale = y_scale = 13;
482 hb_font_get_scale (subfont, &x_scale, &y_scale);
483 g_assert_cmpint (x_scale, ==, 10);
484 g_assert_cmpint (y_scale, ==, 12);
485 x_scale = y_scale = 13;
486 hb_font_get_scale (font, &x_scale, &y_scale);
487 g_assert_cmpint (x_scale, ==, 17);
488 g_assert_cmpint (y_scale, ==, 19);
491 x_ppem = y_ppem = 13;
492 hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
493 g_assert_cmpint (x_ppem, ==, 17);
494 g_assert_cmpint (y_ppem, ==, 19);
495 hb_font_set_ppem (subfont, 10, 12);
496 x_ppem = y_ppem = 13;
497 hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
498 g_assert_cmpint (x_ppem, ==, 10);
499 g_assert_cmpint (y_ppem, ==, 12);
500 x_ppem = y_ppem = 13;
501 hb_font_get_ppem (font, &x_ppem, &y_ppem);
502 g_assert_cmpint (x_ppem, ==, 17);
503 g_assert_cmpint (y_ppem, ==, 19);
505 hb_font_destroy (subfont);
509 main (int argc, char **argv)
511 hb_test_init (&argc, &argv);
513 hb_test_add (test_face_empty);
514 hb_test_add (test_face_create);
515 hb_test_add (test_face_createfortables);
517 hb_test_add (test_fontfuncs_empty);
518 hb_test_add (test_fontfuncs_nil);
519 hb_test_add (test_fontfuncs_subclassing);
521 hb_test_add (test_font_empty);
522 hb_test_add (test_font_properties);
524 return hb_test_run();