1 /***************************************************************************/ 2 /* */ 3 /* cffdrivr.c */ 4 /* */ 5 /* OpenType font driver implementation (body). */ 6 /* */ 7 /* Copyright 1996-2013 by */ 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 9 /* */ 10 /* This file is part of the FreeType project, and may only be used, */ 11 /* modified, and distributed under the terms of the FreeType project */ 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13 /* this file you indicate that you have read the license and */ 14 /* understand and accept it fully. */ 15 /* */ 16 /***************************************************************************/ 17 18 19 #include <ft2build.h> 20 #include FT_FREETYPE_H 21 #include FT_INTERNAL_DEBUG_H 22 #include FT_INTERNAL_STREAM_H 23 #include FT_INTERNAL_SFNT_H 24 #include FT_SERVICE_CID_H 25 #include FT_SERVICE_POSTSCRIPT_INFO_H 26 #include FT_SERVICE_POSTSCRIPT_NAME_H 27 #include FT_SERVICE_TT_CMAP_H 28 29 #include "cffdrivr.h" 30 #include "cffgload.h" 31 #include "cffload.h" 32 #include "cffcmap.h" 33 #include "cffparse.h" 34 35 #include "cfferrs.h" 36 #include "cffpic.h" 37 38 #include FT_SERVICE_XFREE86_NAME_H 39 #include FT_SERVICE_GLYPH_DICT_H 40 #include FT_SERVICE_PROPERTIES_H 41 #include FT_CFF_DRIVER_H 42 43 44 /*************************************************************************/ 45 /* */ 46 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 47 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 48 /* messages during execution. */ 49 /* */ 50 #undef FT_COMPONENT 51 #define FT_COMPONENT trace_cffdriver 52 53 54 /*************************************************************************/ 55 /*************************************************************************/ 56 /*************************************************************************/ 57 /**** ****/ 58 /**** ****/ 59 /**** F A C E S ****/ 60 /**** ****/ 61 /**** ****/ 62 /*************************************************************************/ 63 /*************************************************************************/ 64 /*************************************************************************/ 65 66 67 #undef PAIR_TAG 68 #define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \ 69 (FT_ULong)right ) 70 71 72 /*************************************************************************/ 73 /* */ 74 /* <Function> */ 75 /* cff_get_kerning */ 76 /* */ 77 /* <Description> */ 78 /* A driver method used to return the kerning vector between two */ 79 /* glyphs of the same face. */ 80 /* */ 81 /* <Input> */ 82 /* face :: A handle to the source face object. */ 83 /* */ 84 /* left_glyph :: The index of the left glyph in the kern pair. */ 85 /* */ 86 /* right_glyph :: The index of the right glyph in the kern pair. */ 87 /* */ 88 /* <Output> */ 89 /* kerning :: The kerning vector. This is in font units for */ 90 /* scalable formats, and in pixels for fixed-sizes */ 91 /* formats. */ 92 /* */ 93 /* <Return> */ 94 /* FreeType error code. 0 means success. */ 95 /* */ 96 /* <Note> */ 97 /* Only horizontal layouts (left-to-right & right-to-left) are */ 98 /* supported by this function. Other layouts, or more sophisticated */ 99 /* kernings, are out of scope of this method (the basic driver */ 100 /* interface is meant to be simple). */ 101 /* */ 102 /* They can be implemented by format-specific interfaces. */ 103 /* */ 104 FT_CALLBACK_DEF( FT_Error ) 105 cff_get_kerning( FT_Face ttface, /* TT_Face */ 106 FT_UInt left_glyph, 107 FT_UInt right_glyph, 108 FT_Vector* kerning ) 109 { 110 TT_Face face = (TT_Face)ttface; 111 SFNT_Service sfnt = (SFNT_Service)face->sfnt; 112 113 114 kerning->x = 0; 115 kerning->y = 0; 116 117 if ( sfnt ) 118 kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); 119 120 return FT_Err_Ok; 121 } 122 123 124 #undef PAIR_TAG 125 126 127 /*************************************************************************/ 128 /* */ 129 /* <Function> */ 130 /* cff_glyph_load */ 131 /* */ 132 /* <Description> */ 133 /* A driver method used to load a glyph within a given glyph slot. */ 134 /* */ 135 /* <Input> */ 136 /* slot :: A handle to the target slot object where the glyph */ 137 /* will be loaded. */ 138 /* */ 139 /* size :: A handle to the source face size at which the glyph */ 140 /* must be scaled, loaded, etc. */ 141 /* */ 142 /* glyph_index :: The index of the glyph in the font file. */ 143 /* */ 144 /* load_flags :: A flag indicating what to load for this glyph. The */ 145 /* FT_LOAD_??? constants can be used to control the */ 146 /* glyph loading process (e.g., whether the outline */ 147 /* should be scaled, whether to load bitmaps or not, */ 148 /* whether to hint the outline, etc). */ 149 /* */ 150 /* <Return> */ 151 /* FreeType error code. 0 means success. */ 152 /* */ 153 FT_CALLBACK_DEF( FT_Error ) 154 cff_glyph_load( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */ 155 FT_Size cffsize, /* CFF_Size */ 156 FT_UInt glyph_index, 157 FT_Int32 load_flags ) 158 { 159 FT_Error error; 160 CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; 161 CFF_Size size = (CFF_Size)cffsize; 162 163 164 if ( !slot ) 165 return FT_THROW( Invalid_Slot_Handle ); 166 167 FT_TRACE1(( "cff_glyph_load: glyph index %d\n", glyph_index )); 168 169 /* check whether we want a scaled outline or bitmap */ 170 if ( !size ) 171 load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; 172 173 /* reset the size object if necessary */ 174 if ( load_flags & FT_LOAD_NO_SCALE ) 175 size = NULL; 176 177 if ( size ) 178 { 179 /* these two objects must have the same parent */ 180 if ( cffsize->face != cffslot->face ) 181 return FT_THROW( Invalid_Face_Handle ); 182 } 183 184 /* now load the glyph outline if necessary */ 185 error = cff_slot_load( slot, size, glyph_index, load_flags ); 186 187 /* force drop-out mode to 2 - irrelevant now */ 188 /* slot->outline.dropout_mode = 2; */ 189 190 return error; 191 } 192 193 194 FT_CALLBACK_DEF( FT_Error ) 195 cff_get_advances( FT_Face face, 196 FT_UInt start, 197 FT_UInt count, 198 FT_Int32 flags, 199 FT_Fixed* advances ) 200 { 201 FT_UInt nn; 202 FT_Error error = FT_Err_Ok; 203 FT_GlyphSlot slot = face->glyph; 204 205 206 flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; 207 208 for ( nn = 0; nn < count; nn++ ) 209 { 210 error = cff_glyph_load( slot, face->size, start + nn, flags ); 211 if ( error ) 212 break; 213 214 advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) 215 ? slot->linearVertAdvance 216 : slot->linearHoriAdvance; 217 } 218 219 return error; 220 } 221 222 223 /* 224 * GLYPH DICT SERVICE 225 * 226 */ 227 228 static FT_Error 229 cff_get_glyph_name( CFF_Face face, 230 FT_UInt glyph_index, 231 FT_Pointer buffer, 232 FT_UInt buffer_max ) 233 { 234 CFF_Font font = (CFF_Font)face->extra.data; 235 FT_String* gname; 236 FT_UShort sid; 237 FT_Error error; 238 239 240 if ( !font->psnames ) 241 { 242 FT_ERROR(( "cff_get_glyph_name:" 243 " cannot get glyph name from CFF & CEF fonts\n" 244 " " 245 " without the `PSNames' module\n" )); 246 error = FT_THROW( Missing_Module ); 247 goto Exit; 248 } 249 250 /* first, locate the sid in the charset table */ 251 sid = font->charset.sids[glyph_index]; 252 253 /* now, lookup the name itself */ 254 gname = cff_index_get_sid_string( font, sid ); 255 256 if ( gname ) 257 FT_STRCPYN( buffer, gname, buffer_max ); 258 259 error = FT_Err_Ok; 260 261 Exit: 262 return error; 263 } 264 265 266 static FT_UInt 267 cff_get_name_index( CFF_Face face, 268 FT_String* glyph_name ) 269 { 270 CFF_Font cff; 271 CFF_Charset charset; 272 FT_Service_PsCMaps psnames; 273 FT_String* name; 274 FT_UShort sid; 275 FT_UInt i; 276 277 278 cff = (CFF_FontRec *)face->extra.data; 279 charset = &cff->charset; 280 281 FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); 282 if ( !psnames ) 283 return 0; 284 285 for ( i = 0; i < cff->num_glyphs; i++ ) 286 { 287 sid = charset->sids[i]; 288 289 if ( sid > 390 ) 290 name = cff_index_get_string( cff, sid - 391 ); 291 else 292 name = (FT_String *)psnames->adobe_std_strings( sid ); 293 294 if ( !name ) 295 continue; 296 297 if ( !ft_strcmp( glyph_name, name ) ) 298 return i; 299 } 300 301 return 0; 302 } 303 304 305 FT_DEFINE_SERVICE_GLYPHDICTREC( 306 cff_service_glyph_dict, 307 (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, 308 (FT_GlyphDict_NameIndexFunc)cff_get_name_index 309 ) 310 311 312 /* 313 * POSTSCRIPT INFO SERVICE 314 * 315 */ 316 317 static FT_Int 318 cff_ps_has_glyph_names( FT_Face face ) 319 { 320 return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0; 321 } 322 323 324 static FT_Error 325 cff_ps_get_font_info( CFF_Face face, 326 PS_FontInfoRec* afont_info ) 327 { 328 CFF_Font cff = (CFF_Font)face->extra.data; 329 FT_Error error = FT_Err_Ok; 330 331 332 if ( cff && cff->font_info == NULL ) 333 { 334 CFF_FontRecDict dict = &cff->top_font.font_dict; 335 PS_FontInfoRec *font_info = NULL; 336 FT_Memory memory = face->root.memory; 337 338 339 if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) 340 goto Fail; 341 342 font_info->version = cff_index_get_sid_string( cff, 343 dict->version ); 344 font_info->notice = cff_index_get_sid_string( cff, 345 dict->notice ); 346 font_info->full_name = cff_index_get_sid_string( cff, 347 dict->full_name ); 348 font_info->family_name = cff_index_get_sid_string( cff, 349 dict->family_name ); 350 font_info->weight = cff_index_get_sid_string( cff, 351 dict->weight ); 352 font_info->italic_angle = dict->italic_angle; 353 font_info->is_fixed_pitch = dict->is_fixed_pitch; 354 font_info->underline_position = (FT_Short)dict->underline_position; 355 font_info->underline_thickness = (FT_Short)dict->underline_thickness; 356 357 cff->font_info = font_info; 358 } 359 360 if ( cff ) 361 *afont_info = *cff->font_info; 362 363 Fail: 364 return error; 365 } 366 367 368 FT_DEFINE_SERVICE_PSINFOREC( 369 cff_service_ps_info, 370 (PS_GetFontInfoFunc) cff_ps_get_font_info, 371 (PS_GetFontExtraFunc) NULL, 372 (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, 373 (PS_GetFontPrivateFunc)NULL, /* unsupported with CFF fonts */ 374 (PS_GetFontValueFunc) NULL /* not implemented */ 375 ) 376 377 378 /* 379 * POSTSCRIPT NAME SERVICE 380 * 381 */ 382 383 static const char* 384 cff_get_ps_name( CFF_Face face ) 385 { 386 CFF_Font cff = (CFF_Font)face->extra.data; 387 388 389 return (const char*)cff->font_name; 390 } 391 392 393 FT_DEFINE_SERVICE_PSFONTNAMEREC( 394 cff_service_ps_name, 395 (FT_PsName_GetFunc)cff_get_ps_name 396 ) 397 398 399 /* 400 * TT CMAP INFO 401 * 402 * If the charmap is a synthetic Unicode encoding cmap or 403 * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO 404 * service defined in SFNT module. 405 * 406 * Otherwise call the service function in the sfnt module. 407 * 408 */ 409 static FT_Error 410 cff_get_cmap_info( FT_CharMap charmap, 411 TT_CMapInfo *cmap_info ) 412 { 413 FT_CMap cmap = FT_CMAP( charmap ); 414 FT_Error error = FT_Err_Ok; 415 416 FT_Face face = FT_CMAP_FACE( cmap ); 417 FT_Library library = FT_FACE_LIBRARY( face ); 418 419 420 cmap_info->language = 0; 421 cmap_info->format = 0; 422 423 if ( cmap->clazz != &CFF_CMAP_ENCODING_CLASS_REC_GET && 424 cmap->clazz != &CFF_CMAP_UNICODE_CLASS_REC_GET ) 425 { 426 FT_Module sfnt = FT_Get_Module( library, "sfnt" ); 427 FT_Service_TTCMaps service = 428 (FT_Service_TTCMaps)ft_module_get_service( sfnt, 429 FT_SERVICE_ID_TT_CMAP ); 430 431 432 if ( service && service->get_cmap_info ) 433 error = service->get_cmap_info( charmap, cmap_info ); 434 } 435 436 return error; 437 } 438 439 440 FT_DEFINE_SERVICE_TTCMAPSREC( 441 cff_service_get_cmap_info, 442 (TT_CMap_Info_GetFunc)cff_get_cmap_info 443 ) 444 445 446 /* 447 * CID INFO SERVICE 448 * 449 */ 450 static FT_Error 451 cff_get_ros( CFF_Face face, 452 const char* *registry, 453 const char* *ordering, 454 FT_Int *supplement ) 455 { 456 FT_Error error = FT_Err_Ok; 457 CFF_Font cff = (CFF_Font)face->extra.data; 458 459 460 if ( cff ) 461 { 462 CFF_FontRecDict dict = &cff->top_font.font_dict; 463 464 465 if ( dict->cid_registry == 0xFFFFU ) 466 { 467 error = FT_THROW( Invalid_Argument ); 468 goto Fail; 469 } 470 471 if ( registry ) 472 { 473 if ( cff->registry == NULL ) 474 cff->registry = cff_index_get_sid_string( cff, 475 dict->cid_registry ); 476 *registry = cff->registry; 477 } 478 479 if ( ordering ) 480 { 481 if ( cff->ordering == NULL ) 482 cff->ordering = cff_index_get_sid_string( cff, 483 dict->cid_ordering ); 484 *ordering = cff->ordering; 485 } 486 487 /* 488 * XXX: According to Adobe TechNote #5176, the supplement in CFF 489 * can be a real number. We truncate it to fit public API 490 * since freetype-2.3.6. 491 */ 492 if ( supplement ) 493 { 494 if ( dict->cid_supplement < FT_INT_MIN || 495 dict->cid_supplement > FT_INT_MAX ) 496 FT_TRACE1(( "cff_get_ros: too large supplement %d is truncated\n", 497 dict->cid_supplement )); 498 *supplement = (FT_Int)dict->cid_supplement; 499 } 500 } 501 502 Fail: 503 return error; 504 } 505 506 507 static FT_Error 508 cff_get_is_cid( CFF_Face face, 509 FT_Bool *is_cid ) 510 { 511 FT_Error error = FT_Err_Ok; 512 CFF_Font cff = (CFF_Font)face->extra.data; 513 514 515 *is_cid = 0; 516 517 if ( cff ) 518 { 519 CFF_FontRecDict dict = &cff->top_font.font_dict; 520 521 522 if ( dict->cid_registry != 0xFFFFU ) 523 *is_cid = 1; 524 } 525 526 return error; 527 } 528 529 530 static FT_Error 531 cff_get_cid_from_glyph_index( CFF_Face face, 532 FT_UInt glyph_index, 533 FT_UInt *cid ) 534 { 535 FT_Error error = FT_Err_Ok; 536 CFF_Font cff; 537 538 539 cff = (CFF_Font)face->extra.data; 540 541 if ( cff ) 542 { 543 FT_UInt c; 544 CFF_FontRecDict dict = &cff->top_font.font_dict; 545 546 547 if ( dict->cid_registry == 0xFFFFU ) 548 { 549 error = FT_THROW( Invalid_Argument ); 550 goto Fail; 551 } 552 553 if ( glyph_index > cff->num_glyphs ) 554 { 555 error = FT_THROW( Invalid_Argument ); 556 goto Fail; 557 } 558 559 c = cff->charset.sids[glyph_index]; 560 561 if ( cid ) 562 *cid = c; 563 } 564 565 Fail: 566 return error; 567 } 568 569 570 FT_DEFINE_SERVICE_CIDREC( 571 cff_service_cid_info, 572 (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros, 573 (FT_CID_GetIsInternallyCIDKeyedFunc) cff_get_is_cid, 574 (FT_CID_GetCIDFromGlyphIndexFunc) cff_get_cid_from_glyph_index 575 ) 576 577 578 /* 579 * PROPERTY SERVICE 580 * 581 */ 582 static FT_Error 583 cff_property_set( FT_Module module, /* CFF_Driver */ 584 const char* property_name, 585 const void* value ) 586 { 587 FT_Error error = FT_Err_Ok; 588 CFF_Driver driver = (CFF_Driver)module; 589 590 591 if ( !ft_strcmp( property_name, "darkening-parameters" ) ) 592 { 593 FT_Int* darken_params = (FT_Int*)value; 594 595 FT_Int x1 = darken_params[0]; 596 FT_Int y1 = darken_params[1]; 597 FT_Int x2 = darken_params[2]; 598 FT_Int y2 = darken_params[3]; 599 FT_Int x3 = darken_params[4]; 600 FT_Int y3 = darken_params[5]; 601 FT_Int x4 = darken_params[6]; 602 FT_Int y4 = darken_params[7]; 603 604 605 if ( x1 < 0 || x2 < 0 || x3 < 0 || x4 < 0 || 606 y1 < 0 || y2 < 0 || y3 < 0 || y4 < 0 || 607 x1 > x2 || x2 > x3 || x3 > x4 || 608 y1 > 500 || y2 > 500 || y3 > 500 || y4 > 500 ) 609 return FT_THROW( Invalid_Argument ); 610 611 driver->darken_params[0] = x1; 612 driver->darken_params[1] = y1; 613 driver->darken_params[2] = x2; 614 driver->darken_params[3] = y2; 615 driver->darken_params[4] = x3; 616 driver->darken_params[5] = y3; 617 driver->darken_params[6] = x4; 618 driver->darken_params[7] = y4; 619 620 return error; 621 } 622 else if ( !ft_strcmp( property_name, "hinting-engine" ) ) 623 { 624 FT_UInt* hinting_engine = (FT_UInt*)value; 625 626 627 #ifndef CFF_CONFIG_OPTION_OLD_ENGINE 628 if ( *hinting_engine != FT_CFF_HINTING_ADOBE ) 629 error = FT_ERR( Unimplemented_Feature ); 630 else 631 #endif 632 driver->hinting_engine = *hinting_engine; 633 634 return error; 635 } 636 else if ( !ft_strcmp( property_name, "no-stem-darkening" ) ) 637 { 638 FT_Bool* no_stem_darkening = (FT_Bool*)value; 639 640 641 driver->no_stem_darkening = *no_stem_darkening; 642 643 return error; 644 } 645 646 FT_TRACE0(( "cff_property_set: missing property `%s'\n", 647 property_name )); 648 return FT_THROW( Missing_Property ); 649 } 650 651 652 static FT_Error 653 cff_property_get( FT_Module module, /* CFF_Driver */ 654 const char* property_name, 655 const void* value ) 656 { 657 FT_Error error = FT_Err_Ok; 658 CFF_Driver driver = (CFF_Driver)module; 659 660 661 if ( !ft_strcmp( property_name, "darkening-parameters" ) ) 662 { 663 FT_Int* darken_params = driver->darken_params; 664 FT_Int* val = (FT_Int*)value; 665 666 667 val[0] = darken_params[0]; 668 val[1] = darken_params[1]; 669 val[2] = darken_params[2]; 670 val[3] = darken_params[3]; 671 val[4] = darken_params[4]; 672 val[5] = darken_params[5]; 673 val[6] = darken_params[6]; 674 val[7] = darken_params[7]; 675 676 return error; 677 } 678 else if ( !ft_strcmp( property_name, "hinting-engine" ) ) 679 { 680 FT_UInt hinting_engine = driver->hinting_engine; 681 FT_UInt* val = (FT_UInt*)value; 682 683 684 *val = hinting_engine; 685 686 return error; 687 } 688 else if ( !ft_strcmp( property_name, "no-stem-darkening" ) ) 689 { 690 FT_Bool no_stem_darkening = driver->no_stem_darkening; 691 FT_Bool* val = (FT_Bool*)value; 692 693 694 *val = no_stem_darkening; 695 696 return error; 697 } 698 699 FT_TRACE0(( "cff_property_get: missing property `%s'\n", 700 property_name )); 701 return FT_THROW( Missing_Property ); 702 } 703 704 705 FT_DEFINE_SERVICE_PROPERTIESREC( 706 cff_service_properties, 707 (FT_Properties_SetFunc)cff_property_set, 708 (FT_Properties_GetFunc)cff_property_get ) 709 710 711 /*************************************************************************/ 712 /*************************************************************************/ 713 /*************************************************************************/ 714 /**** ****/ 715 /**** ****/ 716 /**** D R I V E R I N T E R F A C E ****/ 717 /**** ****/ 718 /**** ****/ 719 /*************************************************************************/ 720 /*************************************************************************/ 721 /*************************************************************************/ 722 723 #ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES 724 FT_DEFINE_SERVICEDESCREC7( 725 cff_services, 726 FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF, 727 FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, 728 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, 729 FT_SERVICE_ID_GLYPH_DICT, &CFF_SERVICE_GLYPH_DICT_GET, 730 FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET, 731 FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, 732 FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET 733 ) 734 #else 735 FT_DEFINE_SERVICEDESCREC6( 736 cff_services, 737 FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF, 738 FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, 739 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, 740 FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET, 741 FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, 742 FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET 743 ) 744 #endif 745 746 747 FT_CALLBACK_DEF( FT_Module_Interface ) 748 cff_get_interface( FT_Module driver, /* CFF_Driver */ 749 const char* module_interface ) 750 { 751 FT_Library library; 752 FT_Module sfnt; 753 FT_Module_Interface result; 754 755 756 /* CFF_SERVICES_GET derefers `library' in PIC mode */ 757 #ifdef FT_CONFIG_OPTION_PIC 758 if ( !driver ) 759 return NULL; 760 library = driver->library; 761 if ( !library ) 762 return NULL; 763 #endif 764 765 result = ft_service_list_lookup( CFF_SERVICES_GET, module_interface ); 766 if ( result != NULL ) 767 return result; 768 769 /* `driver' is not yet evaluated in non-PIC mode */ 770 #ifndef FT_CONFIG_OPTION_PIC 771 if ( !driver ) 772 return NULL; 773 library = driver->library; 774 if ( !library ) 775 return NULL; 776 #endif 777 778 /* we pass our request to the `sfnt' module */ 779 sfnt = FT_Get_Module( library, "sfnt" ); 780 781 return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0; 782 } 783 784 785 /* The FT_DriverInterface structure is defined in ftdriver.h. */ 786 787 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 788 #define CFF_SIZE_SELECT cff_size_select 789 #else 790 #define CFF_SIZE_SELECT 0 791 #endif 792 793 FT_DEFINE_DRIVER( 794 cff_driver_class, 795 796 FT_MODULE_FONT_DRIVER | 797 FT_MODULE_DRIVER_SCALABLE | 798 FT_MODULE_DRIVER_HAS_HINTER, 799 800 sizeof ( CFF_DriverRec ), 801 "cff", 802 0x10000L, 803 0x20000L, 804 805 0, /* module-specific interface */ 806 807 cff_driver_init, 808 cff_driver_done, 809 cff_get_interface, 810 811 /* now the specific driver fields */ 812 sizeof ( TT_FaceRec ), 813 sizeof ( CFF_SizeRec ), 814 sizeof ( CFF_GlyphSlotRec ), 815 816 cff_face_init, 817 cff_face_done, 818 cff_size_init, 819 cff_size_done, 820 cff_slot_init, 821 cff_slot_done, 822 823 cff_glyph_load, 824 825 cff_get_kerning, 826 0, /* FT_Face_AttachFunc */ 827 cff_get_advances, 828 829 cff_size_request, 830 831 CFF_SIZE_SELECT 832 ) 833 834 835 /* END */ 836
