1 /* 2 * Copyright 2011 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): Behdad Esfahbod 25 */ 26 27 #include "hb-test.h" 28 29 /* Unit tests for hb-font.h */ 30 31 32 static const char test_data[] = "test\0data"; 33 34 35 static void 36 test_face_empty (void) 37 { 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)); 41 42 g_assert (hb_face_reference_table (hb_face_get_empty (), HB_TAG ('h','e','a','d')) == hb_blob_get_empty ()); 43 44 g_assert_cmpint (hb_face_get_upem (hb_face_get_empty ()), ==, 1000); 45 } 46 47 static void 48 test_face_create (void) 49 { 50 hb_face_t *face; 51 hb_blob_t *blob; 52 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); 56 57 g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ()); 58 59 g_assert_cmpint (hb_face_get_upem (face), ==, 1000); 60 61 hb_face_destroy (face); 62 } 63 64 65 static void 66 free_up (void *user_data) 67 { 68 int *freed = (int *) user_data; 69 70 g_assert (!*freed); 71 72 (*freed)++; 73 } 74 75 static hb_blob_t * 76 get_table (hb_face_t *face, hb_tag_t tag, void *user_data) 77 { 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); 80 81 return hb_blob_get_empty (); 82 } 83 84 static void 85 test_face_createfortables (void) 86 { 87 hb_face_t *face; 88 hb_blob_t *blob; 89 const char *data; 90 unsigned int len; 91 int freed = 0; 92 93 face = hb_face_create_for_tables (get_table, &freed, free_up); 94 g_assert (!freed); 95 96 g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ()); 97 98 blob = hb_face_reference_table (face, HB_TAG ('a','b','c','d')); 99 g_assert (blob != hb_blob_get_empty ()); 100 101 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); 105 106 g_assert_cmpint (hb_face_get_upem (face), ==, 1000); 107 108 hb_face_destroy (face); 109 g_assert (freed); 110 } 111 112 static void 113 _test_font_nil_funcs (hb_font_t *font) 114 { 115 hb_codepoint_t glyph; 116 hb_position_t x, y; 117 hb_glyph_extents_t extents; 118 unsigned int upem = hb_face_get_upem (hb_font_get_face (font)); 119 120 x = y = 13; 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); 124 125 x = hb_font_get_glyph_h_advance (font, 17); 126 g_assert_cmpint (x, ==, upem); 127 128 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); 135 136 glyph = 3; 137 g_assert (!hb_font_get_glyph (font, 17, 2, &glyph)); 138 g_assert_cmpint (glyph, ==, 0); 139 140 x = hb_font_get_glyph_h_kerning (font, 17, 19); 141 g_assert_cmpint (x, ==, 0); 142 } 143 144 static void 145 _test_fontfuncs_nil (hb_font_funcs_t *ffuncs) 146 { 147 hb_blob_t *blob; 148 hb_face_t *face; 149 hb_font_t *font; 150 hb_font_t *subfont; 151 int freed = 0; 152 153 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); 158 g_assert (font); 159 g_assert (hb_face_is_immutable (face)); 160 hb_face_destroy (face); 161 162 163 hb_font_set_funcs (font, ffuncs, &freed, free_up); 164 g_assert_cmpint (freed, ==, 0); 165 166 _test_font_nil_funcs (font); 167 168 subfont = hb_font_create_sub_font (font); 169 g_assert (subfont); 170 171 g_assert_cmpint (freed, ==, 0); 172 hb_font_destroy (font); 173 g_assert_cmpint (freed, ==, 0); 174 175 _test_font_nil_funcs (subfont); 176 177 hb_font_destroy (subfont); 178 g_assert_cmpint (freed, ==, 1); 179 } 180 181 static void 182 test_fontfuncs_empty (void) 183 { 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 ()); 187 } 188 189 static void 190 test_fontfuncs_nil (void) 191 { 192 hb_font_funcs_t *ffuncs; 193 194 ffuncs = hb_font_funcs_create (); 195 196 g_assert (!hb_font_funcs_is_immutable (ffuncs)); 197 _test_fontfuncs_nil (hb_font_funcs_get_empty ()); 198 199 hb_font_funcs_destroy (ffuncs); 200 } 201 202 static hb_bool_t 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, 206 void *user_data) 207 { 208 if (glyph == 1) { 209 *x = 2; 210 *y = 3; 211 return TRUE; 212 } 213 if (glyph == 2) { 214 *x = 4; 215 *y = 5; 216 return TRUE; 217 } 218 219 return FALSE; 220 } 221 222 static hb_bool_t 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, 226 void *user_data) 227 { 228 if (glyph == 1) { 229 *x = 6; 230 *y = 7; 231 return TRUE; 232 } 233 234 return hb_font_get_glyph_contour_point (hb_font_get_parent (font), 235 glyph, point_index, x, y); 236 } 237 238 static hb_position_t 239 glyph_h_advance_func1 (hb_font_t *font, void *font_data, 240 hb_codepoint_t glyph, 241 void *user_data) 242 { 243 if (glyph == 1) 244 return 8; 245 246 return 0; 247 } 248 249 static void 250 test_fontfuncs_subclassing (void) 251 { 252 hb_blob_t *blob; 253 hb_face_t *face; 254 255 hb_font_funcs_t *ffuncs1; 256 hb_font_funcs_t *ffuncs2; 257 258 hb_font_t *font1; 259 hb_font_t *font2; 260 hb_font_t *font3; 261 262 hb_position_t x; 263 hb_position_t y; 264 265 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); 271 272 /* setup font1 */ 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); 278 279 x = y = 1; 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); 293 294 /* creating sub-font doesn't make the parent font immutable; 295 * making a font immutable however makes it's lineage immutable. 296 */ 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); 308 309 font2 = hb_font_create_sub_font (font1); 310 hb_font_destroy (font1); 311 312 /* 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); 317 318 x = y = 1; 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); 332 333 /* setup font3 to override scale */ 334 font3 = hb_font_create_sub_font (font2); 335 hb_font_set_scale (font3, 20, 30); 336 337 x = y = 1; 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); 351 352 353 hb_font_destroy (font3); 354 } 355 356 357 static void 358 test_font_empty (void) 359 { 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 ())); 365 366 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); 368 } 369 370 static void 371 test_font_properties (void) 372 { 373 hb_blob_t *blob; 374 hb_face_t *face; 375 hb_font_t *font; 376 hb_font_t *subfont; 377 int x_scale, y_scale; 378 unsigned int x_ppem, y_ppem; 379 unsigned int upem; 380 381 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); 386 387 388 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); 402 403 404 /* Check scale */ 405 406 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); 418 419 hb_font_set_scale (font, 17, 19); 420 421 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); 425 426 427 /* Check ppem */ 428 429 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); 440 441 hb_font_set_ppem (font, 17, 19); 442 443 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); 447 448 449 /* Check immutable */ 450 451 g_assert (!hb_font_is_immutable (font)); 452 hb_font_make_immutable (font); 453 g_assert (hb_font_is_immutable (font)); 454 455 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); 460 461 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); 466 467 468 /* sub_font now */ 469 subfont = hb_font_create_sub_font (font); 470 hb_font_destroy (font); 471 472 g_assert (hb_font_get_parent (subfont) == font); 473 g_assert (hb_font_get_face (subfont) == face); 474 475 /* scale */ 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); 489 490 /* ppem */ 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); 504 505 hb_font_destroy (subfont); 506 } 507 508 int 509 main (int argc, char **argv) 510 { 511 hb_test_init (&argc, &argv); 512 513 hb_test_add (test_face_empty); 514 hb_test_add (test_face_create); 515 hb_test_add (test_face_createfortables); 516 517 hb_test_add (test_fontfuncs_empty); 518 hb_test_add (test_fontfuncs_nil); 519 hb_test_add (test_fontfuncs_subclassing); 520 521 hb_test_add (test_font_empty); 522 hb_test_add (test_font_properties); 523 524 return hb_test_run(); 525 } 526
