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| 1 #if !defined(_FXFT_VERSION_) || _FXFT_VERSION_ == 2501 | |
| 2 /***************************************************************************/ | |
| 3 /* */ | |
| 4 /* ftglyph.c */ | |
| 5 /* */ | |
| 6 /* FreeType convenience functions to handle glyphs (body). */ | |
| 7 /* */ | |
| 8 /* Copyright 1996-2005, 2007, 2008, 2010, 2012, 2013 by */ | |
| 9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
| 10 /* */ | |
| 11 /* This file is part of the FreeType project, and may only be used, */ | |
| 12 /* modified, and distributed under the terms of the FreeType project */ | |
| 13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
| 14 /* this file you indicate that you have read the license and */ | |
| 15 /* understand and accept it fully. */ | |
| 16 /* */ | |
| 17 /***************************************************************************/ | |
| 18 | |
| 19 /*************************************************************************/ | |
| 20 /* */ | |
| 21 /* This file contains the definition of several convenience functions */ | |
| 22 /* that can be used by client applications to easily retrieve glyph */ | |
| 23 /* bitmaps and outlines from a given face. */ | |
| 24 /* */ | |
| 25 /* These functions should be optional if you are writing a font server */ | |
| 26 /* or text layout engine on top of FreeType. However, they are pretty */ | |
| 27 /* handy for many other simple uses of the library. */ | |
| 28 /* */ | |
| 29 /*************************************************************************/ | |
| 30 | |
| 31 #define FT2_BUILD_LIBRARY | |
| 32 #include "../../include/ft2build.h" | |
| 33 #include "../../include/freetype/internal/ftdebug.h" | |
| 34 #include "../../include/freetype/ftglyph.h" | |
| 35 #include "../../include/freetype/ftoutln.h" | |
| 36 #include "../../include/freetype/ftbitmap.h" | |
| 37 #include "../../include/freetype/internal/ftobjs.h" | |
| 38 | |
| 39 #include "basepic.h" | |
| 40 | |
| 41 /*************************************************************************/ | |
| 42 /* */ | |
| 43 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ | |
| 44 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ | |
| 45 /* messages during execution. */ | |
| 46 /* */ | |
| 47 #undef FT_COMPONENT | |
| 48 #define FT_COMPONENT trace_glyph | |
| 49 | |
| 50 | |
| 51 /*************************************************************************/ | |
| 52 /*************************************************************************/ | |
| 53 /**** ****/ | |
| 54 /**** FT_BitmapGlyph support ****/ | |
| 55 /**** ****/ | |
| 56 /*************************************************************************/ | |
| 57 /*************************************************************************/ | |
| 58 | |
| 59 FT_CALLBACK_DEF( FT_Error ) | |
| 60 ft_bitmap_glyph_init( FT_Glyph bitmap_glyph, | |
| 61 FT_GlyphSlot slot ) | |
| 62 { | |
| 63 FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; | |
| 64 FT_Error error = FT_Err_Ok; | |
| 65 FT_Library library = FT_GLYPH( glyph )->library; | |
| 66 | |
| 67 | |
| 68 if ( slot->format != FT_GLYPH_FORMAT_BITMAP ) | |
| 69 { | |
| 70 error = FT_THROW( Invalid_Glyph_Format ); | |
| 71 goto Exit; | |
| 72 } | |
| 73 | |
| 74 glyph->left = slot->bitmap_left; | |
| 75 glyph->top = slot->bitmap_top; | |
| 76 | |
| 77 /* do lazy copying whenever possible */ | |
| 78 if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) | |
| 79 { | |
| 80 glyph->bitmap = slot->bitmap; | |
| 81 slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; | |
| 82 } | |
| 83 else | |
| 84 { | |
| 85 FT_Bitmap_New( &glyph->bitmap ); | |
| 86 error = FT_Bitmap_Copy( library, &slot->bitmap, &glyph->bitmap ); | |
| 87 } | |
| 88 | |
| 89 Exit: | |
| 90 return error; | |
| 91 } | |
| 92 | |
| 93 | |
| 94 FT_CALLBACK_DEF( FT_Error ) | |
| 95 ft_bitmap_glyph_copy( FT_Glyph bitmap_source, | |
| 96 FT_Glyph bitmap_target ) | |
| 97 { | |
| 98 FT_Library library = bitmap_source->library; | |
| 99 FT_BitmapGlyph source = (FT_BitmapGlyph)bitmap_source; | |
| 100 FT_BitmapGlyph target = (FT_BitmapGlyph)bitmap_target; | |
| 101 | |
| 102 | |
| 103 target->left = source->left; | |
| 104 target->top = source->top; | |
| 105 | |
| 106 return FT_Bitmap_Copy( library, &source->bitmap, &target->bitmap ); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 FT_CALLBACK_DEF( void ) | |
| 111 ft_bitmap_glyph_done( FT_Glyph bitmap_glyph ) | |
| 112 { | |
| 113 FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; | |
| 114 FT_Library library = FT_GLYPH( glyph )->library; | |
| 115 | |
| 116 | |
| 117 FT_Bitmap_Done( library, &glyph->bitmap ); | |
| 118 } | |
| 119 | |
| 120 | |
| 121 FT_CALLBACK_DEF( void ) | |
| 122 ft_bitmap_glyph_bbox( FT_Glyph bitmap_glyph, | |
| 123 FT_BBox* cbox ) | |
| 124 { | |
| 125 FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; | |
| 126 | |
| 127 | |
| 128 cbox->xMin = glyph->left << 6; | |
| 129 cbox->xMax = cbox->xMin + ( glyph->bitmap.width << 6 ); | |
| 130 cbox->yMax = glyph->top << 6; | |
| 131 cbox->yMin = cbox->yMax - ( glyph->bitmap.rows << 6 ); | |
| 132 } | |
| 133 | |
| 134 | |
| 135 FT_DEFINE_GLYPH(ft_bitmap_glyph_class, | |
| 136 sizeof ( FT_BitmapGlyphRec ), | |
| 137 FT_GLYPH_FORMAT_BITMAP, | |
| 138 | |
| 139 ft_bitmap_glyph_init, | |
| 140 ft_bitmap_glyph_done, | |
| 141 ft_bitmap_glyph_copy, | |
| 142 0, /* FT_Glyph_TransformFunc */ | |
| 143 ft_bitmap_glyph_bbox, | |
| 144 0 /* FT_Glyph_PrepareFunc */ | |
| 145 ) | |
| 146 | |
| 147 | |
| 148 /*************************************************************************/ | |
| 149 /*************************************************************************/ | |
| 150 /**** ****/ | |
| 151 /**** FT_OutlineGlyph support ****/ | |
| 152 /**** ****/ | |
| 153 /*************************************************************************/ | |
| 154 /*************************************************************************/ | |
| 155 | |
| 156 | |
| 157 FT_CALLBACK_DEF( FT_Error ) | |
| 158 ft_outline_glyph_init( FT_Glyph outline_glyph, | |
| 159 FT_GlyphSlot slot ) | |
| 160 { | |
| 161 FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; | |
| 162 FT_Error error = FT_Err_Ok; | |
| 163 FT_Library library = FT_GLYPH( glyph )->library; | |
| 164 FT_Outline* source = &slot->outline; | |
| 165 FT_Outline* target = &glyph->outline; | |
| 166 | |
| 167 | |
| 168 /* check format in glyph slot */ | |
| 169 if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) | |
| 170 { | |
| 171 error = FT_THROW( Invalid_Glyph_Format ); | |
| 172 goto Exit; | |
| 173 } | |
| 174 | |
| 175 /* allocate new outline */ | |
| 176 error = FT_Outline_New( library, source->n_points, source->n_contours, | |
| 177 &glyph->outline ); | |
| 178 if ( error ) | |
| 179 goto Exit; | |
| 180 | |
| 181 FT_Outline_Copy( source, target ); | |
| 182 | |
| 183 Exit: | |
| 184 return error; | |
| 185 } | |
| 186 | |
| 187 | |
| 188 FT_CALLBACK_DEF( void ) | |
| 189 ft_outline_glyph_done( FT_Glyph outline_glyph ) | |
| 190 { | |
| 191 FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; | |
| 192 | |
| 193 | |
| 194 FT_Outline_Done( FT_GLYPH( glyph )->library, &glyph->outline ); | |
| 195 } | |
| 196 | |
| 197 | |
| 198 FT_CALLBACK_DEF( FT_Error ) | |
| 199 ft_outline_glyph_copy( FT_Glyph outline_source, | |
| 200 FT_Glyph outline_target ) | |
| 201 { | |
| 202 FT_OutlineGlyph source = (FT_OutlineGlyph)outline_source; | |
| 203 FT_OutlineGlyph target = (FT_OutlineGlyph)outline_target; | |
| 204 FT_Error error; | |
| 205 FT_Library library = FT_GLYPH( source )->library; | |
| 206 | |
| 207 | |
| 208 error = FT_Outline_New( library, source->outline.n_points, | |
| 209 source->outline.n_contours, &target->outline ); | |
| 210 if ( !error ) | |
| 211 FT_Outline_Copy( &source->outline, &target->outline ); | |
| 212 | |
| 213 return error; | |
| 214 } | |
| 215 | |
| 216 | |
| 217 FT_CALLBACK_DEF( void ) | |
| 218 ft_outline_glyph_transform( FT_Glyph outline_glyph, | |
| 219 const FT_Matrix* matrix, | |
| 220 const FT_Vector* delta ) | |
| 221 { | |
| 222 FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; | |
| 223 | |
| 224 | |
| 225 if ( matrix ) | |
| 226 FT_Outline_Transform( &glyph->outline, matrix ); | |
| 227 | |
| 228 if ( delta ) | |
| 229 FT_Outline_Translate( &glyph->outline, delta->x, delta->y ); | |
| 230 } | |
| 231 | |
| 232 | |
| 233 FT_CALLBACK_DEF( void ) | |
| 234 ft_outline_glyph_bbox( FT_Glyph outline_glyph, | |
| 235 FT_BBox* bbox ) | |
| 236 { | |
| 237 FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; | |
| 238 | |
| 239 | |
| 240 FT_Outline_Get_CBox( &glyph->outline, bbox ); | |
| 241 } | |
| 242 | |
| 243 | |
| 244 FT_CALLBACK_DEF( FT_Error ) | |
| 245 ft_outline_glyph_prepare( FT_Glyph outline_glyph, | |
| 246 FT_GlyphSlot slot ) | |
| 247 { | |
| 248 FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; | |
| 249 | |
| 250 | |
| 251 slot->format = FT_GLYPH_FORMAT_OUTLINE; | |
| 252 slot->outline = glyph->outline; | |
| 253 slot->outline.flags &= ~FT_OUTLINE_OWNER; | |
| 254 | |
| 255 return FT_Err_Ok; | |
| 256 } | |
| 257 | |
| 258 | |
| 259 FT_DEFINE_GLYPH( ft_outline_glyph_class, | |
| 260 sizeof ( FT_OutlineGlyphRec ), | |
| 261 FT_GLYPH_FORMAT_OUTLINE, | |
| 262 | |
| 263 ft_outline_glyph_init, | |
| 264 ft_outline_glyph_done, | |
| 265 ft_outline_glyph_copy, | |
| 266 ft_outline_glyph_transform, | |
| 267 ft_outline_glyph_bbox, | |
| 268 ft_outline_glyph_prepare | |
| 269 ) | |
| 270 | |
| 271 | |
| 272 /*************************************************************************/ | |
| 273 /*************************************************************************/ | |
| 274 /**** ****/ | |
| 275 /**** FT_Glyph class and API ****/ | |
| 276 /**** ****/ | |
| 277 /*************************************************************************/ | |
| 278 /*************************************************************************/ | |
| 279 | |
| 280 static FT_Error | |
| 281 ft_new_glyph( FT_Library library, | |
| 282 const FT_Glyph_Class* clazz, | |
| 283 FT_Glyph* aglyph ) | |
| 284 { | |
| 285 FT_Memory memory = library->memory; | |
| 286 FT_Error error; | |
| 287 FT_Glyph glyph = NULL; | |
| 288 | |
| 289 | |
| 290 *aglyph = 0; | |
| 291 | |
| 292 if ( !FT_ALLOC( glyph, clazz->glyph_size ) ) | |
| 293 { | |
| 294 glyph->library = library; | |
| 295 glyph->clazz = clazz; | |
| 296 glyph->format = clazz->glyph_format; | |
| 297 | |
| 298 *aglyph = glyph; | |
| 299 } | |
| 300 | |
| 301 return error; | |
| 302 } | |
| 303 | |
| 304 | |
| 305 /* documentation is in ftglyph.h */ | |
| 306 | |
| 307 FT_EXPORT_DEF( FT_Error ) | |
| 308 FT_Glyph_Copy( FT_Glyph source, | |
| 309 FT_Glyph *target ) | |
| 310 { | |
| 311 FT_Glyph copy; | |
| 312 FT_Error error; | |
| 313 const FT_Glyph_Class* clazz; | |
| 314 | |
| 315 | |
| 316 /* check arguments */ | |
| 317 if ( !target ) | |
| 318 { | |
| 319 error = FT_THROW( Invalid_Argument ); | |
| 320 goto Exit; | |
| 321 } | |
| 322 | |
| 323 *target = 0; | |
| 324 | |
| 325 if ( !source || !source->clazz ) | |
| 326 { | |
| 327 error = FT_THROW( Invalid_Argument ); | |
| 328 goto Exit; | |
| 329 } | |
| 330 | |
| 331 clazz = source->clazz; | |
| 332 error = ft_new_glyph( source->library, clazz, © ); | |
| 333 if ( error ) | |
| 334 goto Exit; | |
| 335 | |
| 336 copy->advance = source->advance; | |
| 337 copy->format = source->format; | |
| 338 | |
| 339 if ( clazz->glyph_copy ) | |
| 340 error = clazz->glyph_copy( source, copy ); | |
| 341 | |
| 342 if ( error ) | |
| 343 FT_Done_Glyph( copy ); | |
| 344 else | |
| 345 *target = copy; | |
| 346 | |
| 347 Exit: | |
| 348 return error; | |
| 349 } | |
| 350 | |
| 351 | |
| 352 /* documentation is in ftglyph.h */ | |
| 353 | |
| 354 FT_EXPORT_DEF( FT_Error ) | |
| 355 FT_Get_Glyph( FT_GlyphSlot slot, | |
| 356 FT_Glyph *aglyph ) | |
| 357 { | |
| 358 FT_Library library; | |
| 359 FT_Error error; | |
| 360 FT_Glyph glyph; | |
| 361 | |
| 362 const FT_Glyph_Class* clazz = 0; | |
| 363 | |
| 364 | |
| 365 if ( !slot ) | |
| 366 return FT_THROW( Invalid_Slot_Handle ); | |
| 367 | |
| 368 library = slot->library; | |
| 369 | |
| 370 if ( !aglyph ) | |
| 371 return FT_THROW( Invalid_Argument ); | |
| 372 | |
| 373 /* if it is a bitmap, that's easy :-) */ | |
| 374 if ( slot->format == FT_GLYPH_FORMAT_BITMAP ) | |
| 375 clazz = FT_BITMAP_GLYPH_CLASS_GET; | |
| 376 | |
| 377 /* if it is an outline */ | |
| 378 else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) | |
| 379 clazz = FT_OUTLINE_GLYPH_CLASS_GET; | |
| 380 | |
| 381 else | |
| 382 { | |
| 383 /* try to find a renderer that supports the glyph image format */ | |
| 384 FT_Renderer render = FT_Lookup_Renderer( library, slot->format, 0 ); | |
| 385 | |
| 386 | |
| 387 if ( render ) | |
| 388 clazz = &render->glyph_class; | |
| 389 } | |
| 390 | |
| 391 if ( !clazz ) | |
| 392 { | |
| 393 error = FT_THROW( Invalid_Glyph_Format ); | |
| 394 goto Exit; | |
| 395 } | |
| 396 | |
| 397 /* create FT_Glyph object */ | |
| 398 error = ft_new_glyph( library, clazz, &glyph ); | |
| 399 if ( error ) | |
| 400 goto Exit; | |
| 401 | |
| 402 /* copy advance while converting it to 16.16 format */ | |
| 403 glyph->advance.x = slot->advance.x << 10; | |
| 404 glyph->advance.y = slot->advance.y << 10; | |
| 405 | |
| 406 /* now import the image from the glyph slot */ | |
| 407 error = clazz->glyph_init( glyph, slot ); | |
| 408 | |
| 409 /* if an error occurred, destroy the glyph */ | |
| 410 if ( error ) | |
| 411 FT_Done_Glyph( glyph ); | |
| 412 else | |
| 413 *aglyph = glyph; | |
| 414 | |
| 415 Exit: | |
| 416 return error; | |
| 417 } | |
| 418 | |
| 419 | |
| 420 /* documentation is in ftglyph.h */ | |
| 421 | |
| 422 FT_EXPORT_DEF( FT_Error ) | |
| 423 FT_Glyph_Transform( FT_Glyph glyph, | |
| 424 FT_Matrix* matrix, | |
| 425 FT_Vector* delta ) | |
| 426 { | |
| 427 const FT_Glyph_Class* clazz; | |
| 428 FT_Error error = FT_Err_Ok; | |
| 429 | |
| 430 | |
| 431 if ( !glyph || !glyph->clazz ) | |
| 432 error = FT_THROW( Invalid_Argument ); | |
| 433 else | |
| 434 { | |
| 435 clazz = glyph->clazz; | |
| 436 if ( clazz->glyph_transform ) | |
| 437 { | |
| 438 /* transform glyph image */ | |
| 439 clazz->glyph_transform( glyph, matrix, delta ); | |
| 440 | |
| 441 /* transform advance vector */ | |
| 442 if ( matrix ) | |
| 443 FT_Vector_Transform( &glyph->advance, matrix ); | |
| 444 } | |
| 445 else | |
| 446 error = FT_THROW( Invalid_Glyph_Format ); | |
| 447 } | |
| 448 return error; | |
| 449 } | |
| 450 | |
| 451 | |
| 452 /* documentation is in ftglyph.h */ | |
| 453 | |
| 454 FT_EXPORT_DEF( void ) | |
| 455 FT_Glyph_Get_CBox( FT_Glyph glyph, | |
| 456 FT_UInt bbox_mode, | |
| 457 FT_BBox *acbox ) | |
| 458 { | |
| 459 const FT_Glyph_Class* clazz; | |
| 460 | |
| 461 | |
| 462 if ( !acbox ) | |
| 463 return; | |
| 464 | |
| 465 acbox->xMin = acbox->yMin = acbox->xMax = acbox->yMax = 0; | |
| 466 | |
| 467 if ( !glyph || !glyph->clazz ) | |
| 468 return; | |
| 469 else | |
| 470 { | |
| 471 clazz = glyph->clazz; | |
| 472 if ( !clazz->glyph_bbox ) | |
| 473 return; | |
| 474 else | |
| 475 { | |
| 476 /* retrieve bbox in 26.6 coordinates */ | |
| 477 clazz->glyph_bbox( glyph, acbox ); | |
| 478 | |
| 479 /* perform grid fitting if needed */ | |
| 480 if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT || | |
| 481 bbox_mode == FT_GLYPH_BBOX_PIXELS ) | |
| 482 { | |
| 483 acbox->xMin = FT_PIX_FLOOR( acbox->xMin ); | |
| 484 acbox->yMin = FT_PIX_FLOOR( acbox->yMin ); | |
| 485 acbox->xMax = FT_PIX_CEIL( acbox->xMax ); | |
| 486 acbox->yMax = FT_PIX_CEIL( acbox->yMax ); | |
| 487 } | |
| 488 | |
| 489 /* convert to integer pixels if needed */ | |
| 490 if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE || | |
| 491 bbox_mode == FT_GLYPH_BBOX_PIXELS ) | |
| 492 { | |
| 493 acbox->xMin >>= 6; | |
| 494 acbox->yMin >>= 6; | |
| 495 acbox->xMax >>= 6; | |
| 496 acbox->yMax >>= 6; | |
| 497 } | |
| 498 } | |
| 499 } | |
| 500 return; | |
| 501 } | |
| 502 | |
| 503 | |
| 504 /* documentation is in ftglyph.h */ | |
| 505 | |
| 506 FT_EXPORT_DEF( FT_Error ) | |
| 507 FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, | |
| 508 FT_Render_Mode render_mode, | |
| 509 FT_Vector* origin, | |
| 510 FT_Bool destroy ) | |
| 511 { | |
| 512 FT_GlyphSlotRec dummy; | |
| 513 FT_GlyphSlot_InternalRec dummy_internal; | |
| 514 FT_Error error = FT_Err_Ok; | |
| 515 FT_Glyph b, glyph; | |
| 516 FT_BitmapGlyph bitmap = NULL; | |
| 517 const FT_Glyph_Class* clazz; | |
| 518 | |
| 519 /* FT_BITMAP_GLYPH_CLASS_GET derefers `library' in PIC mode */ | |
| 520 FT_Library library; | |
| 521 | |
| 522 | |
| 523 /* check argument */ | |
| 524 if ( !the_glyph ) | |
| 525 goto Bad; | |
| 526 glyph = *the_glyph; | |
| 527 if ( !glyph ) | |
| 528 goto Bad; | |
| 529 | |
| 530 clazz = glyph->clazz; | |
| 531 library = glyph->library; | |
| 532 if ( !library || !clazz ) | |
| 533 goto Bad; | |
| 534 | |
| 535 /* when called with a bitmap glyph, do nothing and return successfully */ | |
| 536 if ( clazz == FT_BITMAP_GLYPH_CLASS_GET ) | |
| 537 goto Exit; | |
| 538 | |
| 539 if ( !clazz->glyph_prepare ) | |
| 540 goto Bad; | |
| 541 | |
| 542 /* we render the glyph into a glyph bitmap using a `dummy' glyph slot */ | |
| 543 /* then calling FT_Render_Glyph_Internal() */ | |
| 544 | |
| 545 FT_MEM_ZERO( &dummy, sizeof ( dummy ) ); | |
| 546 FT_MEM_ZERO( &dummy_internal, sizeof ( dummy_internal ) ); | |
| 547 dummy.internal = &dummy_internal; | |
| 548 dummy.library = library; | |
| 549 dummy.format = clazz->glyph_format; | |
| 550 | |
| 551 /* create result bitmap glyph */ | |
| 552 error = ft_new_glyph( library, FT_BITMAP_GLYPH_CLASS_GET, &b ); | |
| 553 if ( error ) | |
| 554 goto Exit; | |
| 555 bitmap = (FT_BitmapGlyph)b; | |
| 556 | |
| 557 #if 1 | |
| 558 /* if `origin' is set, translate the glyph image */ | |
| 559 if ( origin ) | |
| 560 FT_Glyph_Transform( glyph, 0, origin ); | |
| 561 #else | |
| 562 FT_UNUSED( origin ); | |
| 563 #endif | |
| 564 | |
| 565 /* prepare dummy slot for rendering */ | |
| 566 error = clazz->glyph_prepare( glyph, &dummy ); | |
| 567 if ( !error ) | |
| 568 error = FT_Render_Glyph_Internal( glyph->library, &dummy, render_mode ); | |
| 569 | |
| 570 #if 1 | |
| 571 if ( !destroy && origin ) | |
| 572 { | |
| 573 FT_Vector v; | |
| 574 | |
| 575 | |
| 576 v.x = -origin->x; | |
| 577 v.y = -origin->y; | |
| 578 FT_Glyph_Transform( glyph, 0, &v ); | |
| 579 } | |
| 580 #endif | |
| 581 | |
| 582 if ( error ) | |
| 583 goto Exit; | |
| 584 | |
| 585 /* in case of success, copy the bitmap to the glyph bitmap */ | |
| 586 error = ft_bitmap_glyph_init( (FT_Glyph)bitmap, &dummy ); | |
| 587 if ( error ) | |
| 588 goto Exit; | |
| 589 | |
| 590 /* copy advance */ | |
| 591 bitmap->root.advance = glyph->advance; | |
| 592 | |
| 593 if ( destroy ) | |
| 594 FT_Done_Glyph( glyph ); | |
| 595 | |
| 596 *the_glyph = FT_GLYPH( bitmap ); | |
| 597 | |
| 598 Exit: | |
| 599 if ( error && bitmap ) | |
| 600 FT_Done_Glyph( FT_GLYPH( bitmap ) ); | |
| 601 | |
| 602 return error; | |
| 603 | |
| 604 Bad: | |
| 605 error = FT_THROW( Invalid_Argument ); | |
| 606 goto Exit; | |
| 607 } | |
| 608 | |
| 609 | |
| 610 /* documentation is in ftglyph.h */ | |
| 611 | |
| 612 FT_EXPORT_DEF( void ) | |
| 613 FT_Done_Glyph( FT_Glyph glyph ) | |
| 614 { | |
| 615 if ( glyph ) | |
| 616 { | |
| 617 FT_Memory memory = glyph->library->memory; | |
| 618 const FT_Glyph_Class* clazz = glyph->clazz; | |
| 619 | |
| 620 | |
| 621 if ( clazz->glyph_done ) | |
| 622 clazz->glyph_done( glyph ); | |
| 623 | |
| 624 FT_FREE( glyph ); | |
| 625 } | |
| 626 } | |
| 627 | |
| 628 | |
| 629 /* END */ | |
| 630 #endif | |
| 631 | |
| OLD | NEW |
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Chromium Code Reviews
Issue 815103002:
Update freetype to 2.5.4. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master