1 /***************************************************************************/ 2 /* */ 3 /* cffdrivr.c */ 4 /* */ 5 /* OpenType font driver implementation (body). */ 6 /* */ 7 /* Copyright 1996-2015 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_FONT_FORMAT_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 /*************************************************************************/ 68 /* */ 69 /* <Function> */ 70 /* cff_get_kerning */ 71 /* */ 72 /* <Description> */ 73 /* A driver method used to return the kerning vector between two */ 74 /* glyphs of the same face. */ 75 /* */ 76 /* <Input> */ 77 /* face :: A handle to the source face object. */ 78 /* */ 79 /* left_glyph :: The index of the left glyph in the kern pair. */ 80 /* */ 81 /* right_glyph :: The index of the right glyph in the kern pair. */ 82 /* */ 83 /* <Output> */ 84 /* kerning :: The kerning vector. This is in font units for */ 85 /* scalable formats, and in pixels for fixed-sizes */ 86 /* formats. */ 87 /* */ 88 /* <Return> */ 89 /* FreeType error code. 0 means success. */ 90 /* */ 91 /* <Note> */ 92 /* Only horizontal layouts (left-to-right & right-to-left) are */ 93 /* supported by this function. Other layouts, or more sophisticated */ 94 /* kernings, are out of scope of this method (the basic driver */ 95 /* interface is meant to be simple). */ 96 /* */ 97 /* They can be implemented by format-specific interfaces. */ 98 /* */ 99 FT_CALLBACK_DEF( FT_Error ) 100 cff_get_kerning( FT_Face ttface, /* TT_Face */ 101 FT_UInt left_glyph, 102 FT_UInt right_glyph, 103 FT_Vector* kerning ) 104 { 105 TT_Face face = (TT_Face)ttface; 106 SFNT_Service sfnt = (SFNT_Service)face->sfnt; 107 108 109 kerning->x = 0; 110 kerning->y = 0; 111 112 if ( sfnt ) 113 kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); 114 115 return FT_Err_Ok; 116 } 117 118 119 /*************************************************************************/ 120 /* */ 121 /* <Function> */ 122 /* cff_glyph_load */ 123 /* */ 124 /* <Description> */ 125 /* A driver method used to load a glyph within a given glyph slot. */ 126 /* */ 127 /* <Input> */ 128 /* slot :: A handle to the target slot object where the glyph */ 129 /* will be loaded. */ 130 /* */ 131 /* size :: A handle to the source face size at which the glyph */ 132 /* must be scaled, loaded, etc. */ 133 /* */ 134 /* glyph_index :: The index of the glyph in the font file. */ 135 /* */ 136 /* load_flags :: A flag indicating what to load for this glyph. The */ 137 /* FT_LOAD_??? constants can be used to control the */ 138 /* glyph loading process (e.g., whether the outline */ 139 /* should be scaled, whether to load bitmaps or not, */ 140 /* whether to hint the outline, etc). */ 141 /* */ 142 /* <Return> */ 143 /* FreeType error code. 0 means success. */ 144 /* */ 145 FT_CALLBACK_DEF( FT_Error ) 146 cff_glyph_load( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */ 147 FT_Size cffsize, /* CFF_Size */ 148 FT_UInt glyph_index, 149 FT_Int32 load_flags ) 150 { 151 FT_Error error; 152 CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; 153 CFF_Size size = (CFF_Size)cffsize; 154 155 156 if ( !slot ) 157 return FT_THROW( Invalid_Slot_Handle ); 158 159 FT_TRACE1(( "cff_glyph_load: glyph index %d\n", glyph_index )); 160 161 /* check whether we want a scaled outline or bitmap */ 162 if ( !size ) 163 load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; 164 165 /* reset the size object if necessary */ 166 if ( load_flags & FT_LOAD_NO_SCALE ) 167 size = NULL; 168 169 if ( size ) 170 { 171 /* these two objects must have the same parent */ 172 if ( cffsize->face != cffslot->face ) 173 return FT_THROW( Invalid_Face_Handle ); 174 } 175 176 /* now load the glyph outline if necessary */ 177 error = cff_slot_load( slot, size, glyph_index, load_flags ); 178 179 /* force drop-out mode to 2 - irrelevant now */ 180 /* slot->outline.dropout_mode = 2; */ 181 182 return error; 183 } 184 185 186 FT_CALLBACK_DEF( FT_Error ) 187 cff_get_advances( FT_Face face, 188 FT_UInt start, 189 FT_UInt count, 190 FT_Int32 flags, 191 FT_Fixed* advances ) 192 { 193 FT_UInt nn; 194 FT_Error error = FT_Err_Ok; 195 FT_GlyphSlot slot = face->glyph; 196 197 198 if ( FT_IS_SFNT( face ) ) 199 { 200 /* OpenType 1.7 mandates that the data from `hmtx' table be used; */ 201 /* it is no longer necessary that those values are identical to */ 202 /* the values in the `CFF' table */ 203 204 TT_Face ttface = (TT_Face)face; 205 FT_Short dummy; 206 207 208 if ( flags & FT_LOAD_VERTICAL_LAYOUT ) 209 { 210 /* check whether we have data from the `vmtx' table at all; */ 211 /* otherwise we extract the info from the CFF glyphstrings */ 212 /* (instead of synthesizing a global value using the `OS/2' */ 213 /* table) */ 214 if ( !ttface->vertical_info ) 215 goto Missing_Table; 216 217 for ( nn = 0; nn < count; nn++ ) 218 { 219 FT_UShort ah; 220 221 222 ( (SFNT_Service)ttface->sfnt )->get_metrics( ttface, 223 1, 224 start + nn, 225 &dummy, 226 &ah ); 227 228 FT_TRACE5(( " idx %d: advance height %d font units\n", 229 start + nn, ah )); 230 advances[nn] = ah; 231 } 232 } 233 else 234 { 235 /* check whether we have data from the `hmtx' table at all */ 236 if ( !ttface->horizontal.number_Of_HMetrics ) 237 goto Missing_Table; 238 239 for ( nn = 0; nn < count; nn++ ) 240 { 241 FT_UShort aw; 242 243 244 ( (SFNT_Service)ttface->sfnt )->get_metrics( ttface, 245 0, 246 start + nn, 247 &dummy, 248 &aw ); 249 250 FT_TRACE5(( " idx %d: advance width %d font units\n", 251 start + nn, aw )); 252 advances[nn] = aw; 253 } 254 } 255 256 return error; 257 } 258 259 Missing_Table: 260 flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; 261 262 for ( nn = 0; nn < count; nn++ ) 263 { 264 error = cff_glyph_load( slot, face->size, start + nn, flags ); 265 if ( error ) 266 break; 267 268 advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) 269 ? slot->linearVertAdvance 270 : slot->linearHoriAdvance; 271 } 272 273 return error; 274 } 275 276 277 /* 278 * GLYPH DICT SERVICE 279 * 280 */ 281 282 static FT_Error 283 cff_get_glyph_name( CFF_Face face, 284 FT_UInt glyph_index, 285 FT_Pointer buffer, 286 FT_UInt buffer_max ) 287 { 288 CFF_Font font = (CFF_Font)face->extra.data; 289 FT_String* gname; 290 FT_UShort sid; 291 FT_Error error; 292 293 294 if ( !font->psnames ) 295 { 296 FT_ERROR(( "cff_get_glyph_name:" 297 " cannot get glyph name from CFF & CEF fonts\n" 298 " " 299 " without the `PSNames' module\n" )); 300 error = FT_THROW( Missing_Module ); 301 goto Exit; 302 } 303 304 /* first, locate the sid in the charset table */ 305 sid = font->charset.sids[glyph_index]; 306 307 /* now, lookup the name itself */ 308 gname = cff_index_get_sid_string( font, sid ); 309 310 if ( gname ) 311 FT_STRCPYN( buffer, gname, buffer_max ); 312 313 error = FT_Err_Ok; 314 315 Exit: 316 return error; 317 } 318 319 320 static FT_UInt 321 cff_get_name_index( CFF_Face face, 322 FT_String* glyph_name ) 323 { 324 CFF_Font cff; 325 CFF_Charset charset; 326 FT_Service_PsCMaps psnames; 327 FT_String* name; 328 FT_UShort sid; 329 FT_UInt i; 330 331 332 cff = (CFF_FontRec *)face->extra.data; 333 charset = &cff->charset; 334 335 FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); 336 if ( !psnames ) 337 return 0; 338 339 for ( i = 0; i < cff->num_glyphs; i++ ) 340 { 341 sid = charset->sids[i]; 342 343 if ( sid > 390 ) 344 name = cff_index_get_string( cff, sid - 391 ); 345 else 346 name = (FT_String *)psnames->adobe_std_strings( sid ); 347 348 if ( !name ) 349 continue; 350 351 if ( !ft_strcmp( glyph_name, name ) ) 352 return i; 353 } 354 355 return 0; 356 } 357 358 359 FT_DEFINE_SERVICE_GLYPHDICTREC( 360 cff_service_glyph_dict, 361 (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, 362 (FT_GlyphDict_NameIndexFunc)cff_get_name_index 363 ) 364 365 366 /* 367 * POSTSCRIPT INFO SERVICE 368 * 369 */ 370 371 static FT_Int 372 cff_ps_has_glyph_names( FT_Face face ) 373 { 374 return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0; 375 } 376 377 378 static FT_Error 379 cff_ps_get_font_info( CFF_Face face, 380 PS_FontInfoRec* afont_info ) 381 { 382 CFF_Font cff = (CFF_Font)face->extra.data; 383 FT_Error error = FT_Err_Ok; 384 385 386 if ( cff && cff->font_info == NULL ) 387 { 388 CFF_FontRecDict dict = &cff->top_font.font_dict; 389 PS_FontInfoRec *font_info = NULL; 390 FT_Memory memory = face->root.memory; 391 392 393 if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) 394 goto Fail; 395 396 font_info->version = cff_index_get_sid_string( cff, 397 dict->version ); 398 font_info->notice = cff_index_get_sid_string( cff, 399 dict->notice ); 400 font_info->full_name = cff_index_get_sid_string( cff, 401 dict->full_name ); 402 font_info->family_name = cff_index_get_sid_string( cff, 403 dict->family_name ); 404 font_info->weight = cff_index_get_sid_string( cff, 405 dict->weight ); 406 font_info->italic_angle = dict->italic_angle; 407 font_info->is_fixed_pitch = dict->is_fixed_pitch; 408 font_info->underline_position = (FT_Short)dict->underline_position; 409 font_info->underline_thickness = (FT_UShort)dict->underline_thickness; 410 411 cff->font_info = font_info; 412 } 413 414 if ( cff ) 415 *afont_info = *cff->font_info; 416 417 Fail: 418 return error; 419 } 420 421 422 FT_DEFINE_SERVICE_PSINFOREC( 423 cff_service_ps_info, 424 (PS_GetFontInfoFunc) cff_ps_get_font_info, 425 (PS_GetFontExtraFunc) NULL, 426 (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, 427 (PS_GetFontPrivateFunc)NULL, /* unsupported with CFF fonts */ 428 (PS_GetFontValueFunc) NULL /* not implemented */ 429 ) 430 431 432 /* 433 * POSTSCRIPT NAME SERVICE 434 * 435 */ 436 437 static const char* 438 cff_get_ps_name( CFF_Face face ) 439 { 440 CFF_Font cff = (CFF_Font)face->extra.data; 441 SFNT_Service sfnt = (SFNT_Service)face->sfnt; 442 443 444 /* following the OpenType specification 1.7, we return the name stored */ 445 /* in the `name' table for a CFF wrapped into an SFNT container */ 446 447 if ( sfnt ) 448 { 449 FT_Library library = FT_FACE_LIBRARY( face ); 450 FT_Module sfnt_module = FT_Get_Module( library, "sfnt" ); 451 FT_Service_PsFontName service = 452 (FT_Service_PsFontName)ft_module_get_service( 453 sfnt_module, 454 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME ); 455 456 457 if ( service && service->get_ps_font_name ) 458 return service->get_ps_font_name( FT_FACE( face ) ); 459 } 460 461 return (const char*)cff->font_name; 462 } 463 464 465 FT_DEFINE_SERVICE_PSFONTNAMEREC( 466 cff_service_ps_name, 467 (FT_PsName_GetFunc)cff_get_ps_name 468 ) 469 470 471 /* 472 * TT CMAP INFO 473 * 474 * If the charmap is a synthetic Unicode encoding cmap or 475 * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO 476 * service defined in SFNT module. 477 * 478 * Otherwise call the service function in the sfnt module. 479 * 480 */ 481 static FT_Error 482 cff_get_cmap_info( FT_CharMap charmap, 483 TT_CMapInfo *cmap_info ) 484 { 485 FT_CMap cmap = FT_CMAP( charmap ); 486 FT_Error error = FT_Err_Ok; 487 488 FT_Face face = FT_CMAP_FACE( cmap ); 489 FT_Library library = FT_FACE_LIBRARY( face ); 490 491 492 cmap_info->language = 0; 493 cmap_info->format = 0; 494 495 if ( cmap->clazz != &CFF_CMAP_ENCODING_CLASS_REC_GET && 496 cmap->clazz != &CFF_CMAP_UNICODE_CLASS_REC_GET ) 497 { 498 FT_Module sfnt = FT_Get_Module( library, "sfnt" ); 499 FT_Service_TTCMaps service = 500 (FT_Service_TTCMaps)ft_module_get_service( sfnt, 501 FT_SERVICE_ID_TT_CMAP ); 502 503 504 if ( service && service->get_cmap_info ) 505 error = service->get_cmap_info( charmap, cmap_info ); 506 } 507 508 return error; 509 } 510 511 512 FT_DEFINE_SERVICE_TTCMAPSREC( 513 cff_service_get_cmap_info, 514 (TT_CMap_Info_GetFunc)cff_get_cmap_info 515 ) 516 517 518 /* 519 * CID INFO SERVICE 520 * 521 */ 522 static FT_Error 523 cff_get_ros( CFF_Face face, 524 const char* *registry, 525 const char* *ordering, 526 FT_Int *supplement ) 527 { 528 FT_Error error = FT_Err_Ok; 529 CFF_Font cff = (CFF_Font)face->extra.data; 530 531 532 if ( cff ) 533 { 534 CFF_FontRecDict dict = &cff->top_font.font_dict; 535 536 537 if ( dict->cid_registry == 0xFFFFU ) 538 { 539 error = FT_THROW( Invalid_Argument ); 540 goto Fail; 541 } 542 543 if ( registry ) 544 { 545 if ( cff->registry == NULL ) 546 cff->registry = cff_index_get_sid_string( cff, 547 dict->cid_registry ); 548 *registry = cff->registry; 549 } 550 551 if ( ordering ) 552 { 553 if ( cff->ordering == NULL ) 554 cff->ordering = cff_index_get_sid_string( cff, 555 dict->cid_ordering ); 556 *ordering = cff->ordering; 557 } 558 559 /* 560 * XXX: According to Adobe TechNote #5176, the supplement in CFF 561 * can be a real number. We truncate it to fit public API 562 * since freetype-2.3.6. 563 */ 564 if ( supplement ) 565 { 566 if ( dict->cid_supplement < FT_INT_MIN || 567 dict->cid_supplement > FT_INT_MAX ) 568 FT_TRACE1(( "cff_get_ros: too large supplement %d is truncated\n", 569 dict->cid_supplement )); 570 *supplement = (FT_Int)dict->cid_supplement; 571 } 572 } 573 574 Fail: 575 return error; 576 } 577 578 579 static FT_Error 580 cff_get_is_cid( CFF_Face face, 581 FT_Bool *is_cid ) 582 { 583 FT_Error error = FT_Err_Ok; 584 CFF_Font cff = (CFF_Font)face->extra.data; 585 586 587 *is_cid = 0; 588 589 if ( cff ) 590 { 591 CFF_FontRecDict dict = &cff->top_font.font_dict; 592 593 594 if ( dict->cid_registry != 0xFFFFU ) 595 *is_cid = 1; 596 } 597 598 return error; 599 } 600 601 602 static FT_Error 603 cff_get_cid_from_glyph_index( CFF_Face face, 604 FT_UInt glyph_index, 605 FT_UInt *cid ) 606 { 607 FT_Error error = FT_Err_Ok; 608 CFF_Font cff; 609 610 611 cff = (CFF_Font)face->extra.data; 612 613 if ( cff ) 614 { 615 FT_UInt c; 616 CFF_FontRecDict dict = &cff->top_font.font_dict; 617 618 619 if ( dict->cid_registry == 0xFFFFU ) 620 { 621 error = FT_THROW( Invalid_Argument ); 622 goto Fail; 623 } 624 625 if ( glyph_index > cff->num_glyphs ) 626 { 627 error = FT_THROW( Invalid_Argument ); 628 goto Fail; 629 } 630 631 c = cff->charset.sids[glyph_index]; 632 633 if ( cid ) 634 *cid = c; 635 } 636 637 Fail: 638 return error; 639 } 640 641 642 FT_DEFINE_SERVICE_CIDREC( 643 cff_service_cid_info, 644 (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros, 645 (FT_CID_GetIsInternallyCIDKeyedFunc) cff_get_is_cid, 646 (FT_CID_GetCIDFromGlyphIndexFunc) cff_get_cid_from_glyph_index 647 ) 648 649 650 /* 651 * PROPERTY SERVICE 652 * 653 */ 654 static FT_Error 655 cff_property_set( FT_Module module, /* CFF_Driver */ 656 const char* property_name, 657 const void* value ) 658 { 659 FT_Error error = FT_Err_Ok; 660 CFF_Driver driver = (CFF_Driver)module; 661 662 663 if ( !ft_strcmp( property_name, "darkening-parameters" ) ) 664 { 665 FT_Int* darken_params = (FT_Int*)value; 666 667 FT_Int x1 = darken_params[0]; 668 FT_Int y1 = darken_params[1]; 669 FT_Int x2 = darken_params[2]; 670 FT_Int y2 = darken_params[3]; 671 FT_Int x3 = darken_params[4]; 672 FT_Int y3 = darken_params[5]; 673 FT_Int x4 = darken_params[6]; 674 FT_Int y4 = darken_params[7]; 675 676 677 if ( x1 < 0 || x2 < 0 || x3 < 0 || x4 < 0 || 678 y1 < 0 || y2 < 0 || y3 < 0 || y4 < 0 || 679 x1 > x2 || x2 > x3 || x3 > x4 || 680 y1 > 500 || y2 > 500 || y3 > 500 || y4 > 500 ) 681 return FT_THROW( Invalid_Argument ); 682 683 driver->darken_params[0] = x1; 684 driver->darken_params[1] = y1; 685 driver->darken_params[2] = x2; 686 driver->darken_params[3] = y2; 687 driver->darken_params[4] = x3; 688 driver->darken_params[5] = y3; 689 driver->darken_params[6] = x4; 690 driver->darken_params[7] = y4; 691 692 return error; 693 } 694 else if ( !ft_strcmp( property_name, "hinting-engine" ) ) 695 { 696 FT_UInt* hinting_engine = (FT_UInt*)value; 697 698 699 #ifndef CFF_CONFIG_OPTION_OLD_ENGINE 700 if ( *hinting_engine != FT_CFF_HINTING_ADOBE ) 701 error = FT_ERR( Unimplemented_Feature ); 702 else 703 #endif 704 driver->hinting_engine = *hinting_engine; 705 706 return error; 707 } 708 else if ( !ft_strcmp( property_name, "no-stem-darkening" ) ) 709 { 710 FT_Bool* no_stem_darkening = (FT_Bool*)value; 711 712 713 driver->no_stem_darkening = *no_stem_darkening; 714 715 return error; 716 } 717 718 FT_TRACE0(( "cff_property_set: missing property `%s'\n", 719 property_name )); 720 return FT_THROW( Missing_Property ); 721 } 722 723 724 static FT_Error 725 cff_property_get( FT_Module module, /* CFF_Driver */ 726 const char* property_name, 727 const void* value ) 728 { 729 FT_Error error = FT_Err_Ok; 730 CFF_Driver driver = (CFF_Driver)module; 731 732 733 if ( !ft_strcmp( property_name, "darkening-parameters" ) ) 734 { 735 FT_Int* darken_params = driver->darken_params; 736 FT_Int* val = (FT_Int*)value; 737 738 739 val[0] = darken_params[0]; 740 val[1] = darken_params[1]; 741 val[2] = darken_params[2]; 742 val[3] = darken_params[3]; 743 val[4] = darken_params[4]; 744 val[5] = darken_params[5]; 745 val[6] = darken_params[6]; 746 val[7] = darken_params[7]; 747 748 return error; 749 } 750 else if ( !ft_strcmp( property_name, "hinting-engine" ) ) 751 { 752 FT_UInt hinting_engine = driver->hinting_engine; 753 FT_UInt* val = (FT_UInt*)value; 754 755 756 *val = hinting_engine; 757 758 return error; 759 } 760 else if ( !ft_strcmp( property_name, "no-stem-darkening" ) ) 761 { 762 FT_Bool no_stem_darkening = driver->no_stem_darkening; 763 FT_Bool* val = (FT_Bool*)value; 764 765 766 *val = no_stem_darkening; 767 768 return error; 769 } 770 771 FT_TRACE0(( "cff_property_get: missing property `%s'\n", 772 property_name )); 773 return FT_THROW( Missing_Property ); 774 } 775 776 777 FT_DEFINE_SERVICE_PROPERTIESREC( 778 cff_service_properties, 779 (FT_Properties_SetFunc)cff_property_set, 780 (FT_Properties_GetFunc)cff_property_get ) 781 782 783 /*************************************************************************/ 784 /*************************************************************************/ 785 /*************************************************************************/ 786 /**** ****/ 787 /**** ****/ 788 /**** D R I V E R I N T E R F A C E ****/ 789 /**** ****/ 790 /**** ****/ 791 /*************************************************************************/ 792 /*************************************************************************/ 793 /*************************************************************************/ 794 795 #ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES 796 FT_DEFINE_SERVICEDESCREC7( 797 cff_services, 798 FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, 799 FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, 800 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, 801 FT_SERVICE_ID_GLYPH_DICT, &CFF_SERVICE_GLYPH_DICT_GET, 802 FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET, 803 FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, 804 FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET 805 ) 806 #else 807 FT_DEFINE_SERVICEDESCREC6( 808 cff_services, 809 FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, 810 FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, 811 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, 812 FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET, 813 FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, 814 FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET 815 ) 816 #endif 817 818 819 FT_CALLBACK_DEF( FT_Module_Interface ) 820 cff_get_interface( FT_Module driver, /* CFF_Driver */ 821 const char* module_interface ) 822 { 823 FT_Library library; 824 FT_Module sfnt; 825 FT_Module_Interface result; 826 827 828 /* CFF_SERVICES_GET dereferences `library' in PIC mode */ 829 #ifdef FT_CONFIG_OPTION_PIC 830 if ( !driver ) 831 return NULL; 832 library = driver->library; 833 if ( !library ) 834 return NULL; 835 #endif 836 837 result = ft_service_list_lookup( CFF_SERVICES_GET, module_interface ); 838 if ( result != NULL ) 839 return result; 840 841 /* `driver' is not yet evaluated in non-PIC mode */ 842 #ifndef FT_CONFIG_OPTION_PIC 843 if ( !driver ) 844 return NULL; 845 library = driver->library; 846 if ( !library ) 847 return NULL; 848 #endif 849 850 /* we pass our request to the `sfnt' module */ 851 sfnt = FT_Get_Module( library, "sfnt" ); 852 853 return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0; 854 } 855 856 857 /* The FT_DriverInterface structure is defined in ftdriver.h. */ 858 859 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 860 #define CFF_SIZE_SELECT cff_size_select 861 #else 862 #define CFF_SIZE_SELECT 0 863 #endif 864 865 FT_DEFINE_DRIVER( 866 cff_driver_class, 867 868 FT_MODULE_FONT_DRIVER | 869 FT_MODULE_DRIVER_SCALABLE | 870 FT_MODULE_DRIVER_HAS_HINTER, 871 872 sizeof ( CFF_DriverRec ), 873 "cff", 874 0x10000L, 875 0x20000L, 876 877 0, /* module-specific interface */ 878 879 cff_driver_init, 880 cff_driver_done, 881 cff_get_interface, 882 883 /* now the specific driver fields */ 884 sizeof ( TT_FaceRec ), 885 sizeof ( CFF_SizeRec ), 886 sizeof ( CFF_GlyphSlotRec ), 887 888 cff_face_init, 889 cff_face_done, 890 cff_size_init, 891 cff_size_done, 892 cff_slot_init, 893 cff_slot_done, 894 895 cff_glyph_load, 896 897 cff_get_kerning, 898 0, /* FT_Face_AttachFunc */ 899 cff_get_advances, 900 901 cff_size_request, 902 903 CFF_SIZE_SELECT 904 ) 905 906 907 /* END */ 908
