1 /***************************************************************************/ 2 /* */ 3 /* t1driver.c */ 4 /* */ 5 /* Type 1 driver interface (body). */ 6 /* */ 7 /* Copyright 1996-2018 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 "t1driver.h" 21 #include "t1gload.h" 22 #include "t1load.h" 23 24 #include "t1errors.h" 25 26 #ifndef T1_CONFIG_OPTION_NO_AFM 27 #include "t1afm.h" 28 #endif 29 30 #include FT_INTERNAL_DEBUG_H 31 #include FT_INTERNAL_STREAM_H 32 #include FT_INTERNAL_HASH_H 33 #include FT_INTERNAL_POSTSCRIPT_PROPS_H 34 #include FT_DRIVER_H 35 36 #include FT_SERVICE_MULTIPLE_MASTERS_H 37 #include FT_SERVICE_GLYPH_DICT_H 38 #include FT_SERVICE_FONT_FORMAT_H 39 #include FT_SERVICE_POSTSCRIPT_NAME_H 40 #include FT_SERVICE_POSTSCRIPT_CMAPS_H 41 #include FT_SERVICE_POSTSCRIPT_INFO_H 42 #include FT_SERVICE_PROPERTIES_H 43 #include FT_SERVICE_KERNING_H 44 45 46 /*************************************************************************/ 47 /* */ 48 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 49 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 50 /* messages during execution. */ 51 /* */ 52 #undef FT_COMPONENT 53 #define FT_COMPONENT trace_t1driver 54 55 /* 56 * GLYPH DICT SERVICE 57 * 58 */ 59 60 static FT_Error 61 t1_get_glyph_name( T1_Face face, 62 FT_UInt glyph_index, 63 FT_Pointer buffer, 64 FT_UInt buffer_max ) 65 { 66 FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); 67 68 return FT_Err_Ok; 69 } 70 71 72 static FT_UInt 73 t1_get_name_index( T1_Face face, 74 FT_String* glyph_name ) 75 { 76 FT_Int i; 77 78 79 for ( i = 0; i < face->type1.num_glyphs; i++ ) 80 { 81 FT_String* gname = face->type1.glyph_names[i]; 82 83 84 if ( !ft_strcmp( glyph_name, gname ) ) 85 return (FT_UInt)i; 86 } 87 88 return 0; 89 } 90 91 92 static const FT_Service_GlyphDictRec t1_service_glyph_dict = 93 { 94 (FT_GlyphDict_GetNameFunc) t1_get_glyph_name, /* get_name */ 95 (FT_GlyphDict_NameIndexFunc)t1_get_name_index /* name_index */ 96 }; 97 98 99 /* 100 * POSTSCRIPT NAME SERVICE 101 * 102 */ 103 104 static const char* 105 t1_get_ps_name( T1_Face face ) 106 { 107 return (const char*) face->type1.font_name; 108 } 109 110 111 static const FT_Service_PsFontNameRec t1_service_ps_name = 112 { 113 (FT_PsName_GetFunc)t1_get_ps_name /* get_ps_font_name */ 114 }; 115 116 117 /* 118 * MULTIPLE MASTERS SERVICE 119 * 120 */ 121 122 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT 123 static const FT_Service_MultiMastersRec t1_service_multi_masters = 124 { 125 (FT_Get_MM_Func) T1_Get_Multi_Master, /* get_mm */ 126 (FT_Set_MM_Design_Func) T1_Set_MM_Design, /* set_mm_design */ 127 (FT_Set_MM_Blend_Func) T1_Set_MM_Blend, /* set_mm_blend */ 128 (FT_Get_MM_Blend_Func) T1_Get_MM_Blend, /* get_mm_blend */ 129 (FT_Get_MM_Var_Func) T1_Get_MM_Var, /* get_mm_var */ 130 (FT_Set_Var_Design_Func)T1_Set_Var_Design, /* set_var_design */ 131 (FT_Get_Var_Design_Func)T1_Get_Var_Design, /* get_var_design */ 132 (FT_Set_Instance_Func) T1_Reset_MM_Blend, /* set_instance */ 133 134 (FT_Get_Var_Blend_Func) NULL, /* get_var_blend */ 135 (FT_Done_Blend_Func) T1_Done_Blend /* done_blend */ 136 }; 137 #endif 138 139 140 /* 141 * POSTSCRIPT INFO SERVICE 142 * 143 */ 144 145 static FT_Error 146 t1_ps_get_font_info( FT_Face face, 147 PS_FontInfoRec* afont_info ) 148 { 149 *afont_info = ((T1_Face)face)->type1.font_info; 150 151 return FT_Err_Ok; 152 } 153 154 155 static FT_Error 156 t1_ps_get_font_extra( FT_Face face, 157 PS_FontExtraRec* afont_extra ) 158 { 159 *afont_extra = ((T1_Face)face)->type1.font_extra; 160 161 return FT_Err_Ok; 162 } 163 164 165 static FT_Int 166 t1_ps_has_glyph_names( FT_Face face ) 167 { 168 FT_UNUSED( face ); 169 170 return 1; 171 } 172 173 174 static FT_Error 175 t1_ps_get_font_private( FT_Face face, 176 PS_PrivateRec* afont_private ) 177 { 178 *afont_private = ((T1_Face)face)->type1.private_dict; 179 180 return FT_Err_Ok; 181 } 182 183 184 static FT_Long 185 t1_ps_get_font_value( FT_Face face, 186 PS_Dict_Keys key, 187 FT_UInt idx, 188 void *value, 189 FT_Long value_len_ ) 190 { 191 FT_ULong retval = 0; /* always >= 1 if valid */ 192 FT_ULong value_len = value_len_ < 0 ? 0 : (FT_ULong)value_len_; 193 194 T1_Face t1face = (T1_Face)face; 195 T1_Font type1 = &t1face->type1; 196 197 198 switch ( key ) 199 { 200 case PS_DICT_FONT_TYPE: 201 retval = sizeof ( type1->font_type ); 202 if ( value && value_len >= retval ) 203 *((FT_Byte *)value) = type1->font_type; 204 break; 205 206 case PS_DICT_FONT_MATRIX: 207 if ( idx < sizeof ( type1->font_matrix ) / 208 sizeof ( type1->font_matrix.xx ) ) 209 { 210 FT_Fixed val = 0; 211 212 213 retval = sizeof ( val ); 214 if ( value && value_len >= retval ) 215 { 216 switch ( idx ) 217 { 218 case 0: 219 val = type1->font_matrix.xx; 220 break; 221 case 1: 222 val = type1->font_matrix.xy; 223 break; 224 case 2: 225 val = type1->font_matrix.yx; 226 break; 227 case 3: 228 val = type1->font_matrix.yy; 229 break; 230 } 231 *((FT_Fixed *)value) = val; 232 } 233 } 234 break; 235 236 case PS_DICT_FONT_BBOX: 237 if ( idx < sizeof ( type1->font_bbox ) / 238 sizeof ( type1->font_bbox.xMin ) ) 239 { 240 FT_Fixed val = 0; 241 242 243 retval = sizeof ( val ); 244 if ( value && value_len >= retval ) 245 { 246 switch ( idx ) 247 { 248 case 0: 249 val = type1->font_bbox.xMin; 250 break; 251 case 1: 252 val = type1->font_bbox.yMin; 253 break; 254 case 2: 255 val = type1->font_bbox.xMax; 256 break; 257 case 3: 258 val = type1->font_bbox.yMax; 259 break; 260 } 261 *((FT_Fixed *)value) = val; 262 } 263 } 264 break; 265 266 case PS_DICT_PAINT_TYPE: 267 retval = sizeof ( type1->paint_type ); 268 if ( value && value_len >= retval ) 269 *((FT_Byte *)value) = type1->paint_type; 270 break; 271 272 case PS_DICT_FONT_NAME: 273 retval = ft_strlen( type1->font_name ) + 1; 274 if ( value && value_len >= retval ) 275 ft_memcpy( value, (void *)( type1->font_name ), retval ); 276 break; 277 278 case PS_DICT_UNIQUE_ID: 279 retval = sizeof ( type1->private_dict.unique_id ); 280 if ( value && value_len >= retval ) 281 *((FT_Int *)value) = type1->private_dict.unique_id; 282 break; 283 284 case PS_DICT_NUM_CHAR_STRINGS: 285 retval = sizeof ( type1->num_glyphs ); 286 if ( value && value_len >= retval ) 287 *((FT_Int *)value) = type1->num_glyphs; 288 break; 289 290 case PS_DICT_CHAR_STRING_KEY: 291 if ( idx < (FT_UInt)type1->num_glyphs ) 292 { 293 retval = ft_strlen( type1->glyph_names[idx] ) + 1; 294 if ( value && value_len >= retval ) 295 { 296 ft_memcpy( value, (void *)( type1->glyph_names[idx] ), retval ); 297 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; 298 } 299 } 300 break; 301 302 case PS_DICT_CHAR_STRING: 303 if ( idx < (FT_UInt)type1->num_glyphs ) 304 { 305 retval = type1->charstrings_len[idx] + 1; 306 if ( value && value_len >= retval ) 307 { 308 ft_memcpy( value, (void *)( type1->charstrings[idx] ), 309 retval - 1 ); 310 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; 311 } 312 } 313 break; 314 315 case PS_DICT_ENCODING_TYPE: 316 retval = sizeof ( type1->encoding_type ); 317 if ( value && value_len >= retval ) 318 *((T1_EncodingType *)value) = type1->encoding_type; 319 break; 320 321 case PS_DICT_ENCODING_ENTRY: 322 if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY && 323 idx < (FT_UInt)type1->encoding.num_chars ) 324 { 325 retval = ft_strlen( type1->encoding.char_name[idx] ) + 1; 326 if ( value && value_len >= retval ) 327 { 328 ft_memcpy( value, (void *)( type1->encoding.char_name[idx] ), 329 retval - 1 ); 330 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; 331 } 332 } 333 break; 334 335 case PS_DICT_NUM_SUBRS: 336 retval = sizeof ( type1->num_subrs ); 337 if ( value && value_len >= retval ) 338 *((FT_Int *)value) = type1->num_subrs; 339 break; 340 341 case PS_DICT_SUBR: 342 { 343 FT_Bool ok = 0; 344 345 346 if ( type1->subrs_hash ) 347 { 348 /* convert subr index to array index */ 349 size_t* val = ft_hash_num_lookup( (FT_Int)idx, 350 type1->subrs_hash ); 351 352 353 if ( val ) 354 { 355 idx = *val; 356 ok = 1; 357 } 358 } 359 else 360 { 361 if ( idx < (FT_UInt)type1->num_subrs ) 362 ok = 1; 363 } 364 365 if ( ok ) 366 { 367 retval = type1->subrs_len[idx] + 1; 368 if ( value && value_len >= retval ) 369 { 370 ft_memcpy( value, (void *)( type1->subrs[idx] ), retval - 1 ); 371 ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; 372 } 373 } 374 } 375 break; 376 377 case PS_DICT_STD_HW: 378 retval = sizeof ( type1->private_dict.standard_width[0] ); 379 if ( value && value_len >= retval ) 380 *((FT_UShort *)value) = type1->private_dict.standard_width[0]; 381 break; 382 383 case PS_DICT_STD_VW: 384 retval = sizeof ( type1->private_dict.standard_height[0] ); 385 if ( value && value_len >= retval ) 386 *((FT_UShort *)value) = type1->private_dict.standard_height[0]; 387 break; 388 389 case PS_DICT_NUM_BLUE_VALUES: 390 retval = sizeof ( type1->private_dict.num_blue_values ); 391 if ( value && value_len >= retval ) 392 *((FT_Byte *)value) = type1->private_dict.num_blue_values; 393 break; 394 395 case PS_DICT_BLUE_VALUE: 396 if ( idx < type1->private_dict.num_blue_values ) 397 { 398 retval = sizeof ( type1->private_dict.blue_values[idx] ); 399 if ( value && value_len >= retval ) 400 *((FT_Short *)value) = type1->private_dict.blue_values[idx]; 401 } 402 break; 403 404 case PS_DICT_BLUE_SCALE: 405 retval = sizeof ( type1->private_dict.blue_scale ); 406 if ( value && value_len >= retval ) 407 *((FT_Fixed *)value) = type1->private_dict.blue_scale; 408 break; 409 410 case PS_DICT_BLUE_FUZZ: 411 retval = sizeof ( type1->private_dict.blue_fuzz ); 412 if ( value && value_len >= retval ) 413 *((FT_Int *)value) = type1->private_dict.blue_fuzz; 414 break; 415 416 case PS_DICT_BLUE_SHIFT: 417 retval = sizeof ( type1->private_dict.blue_shift ); 418 if ( value && value_len >= retval ) 419 *((FT_Int *)value) = type1->private_dict.blue_shift; 420 break; 421 422 case PS_DICT_NUM_OTHER_BLUES: 423 retval = sizeof ( type1->private_dict.num_other_blues ); 424 if ( value && value_len >= retval ) 425 *((FT_Byte *)value) = type1->private_dict.num_other_blues; 426 break; 427 428 case PS_DICT_OTHER_BLUE: 429 if ( idx < type1->private_dict.num_other_blues ) 430 { 431 retval = sizeof ( type1->private_dict.other_blues[idx] ); 432 if ( value && value_len >= retval ) 433 *((FT_Short *)value) = type1->private_dict.other_blues[idx]; 434 } 435 break; 436 437 case PS_DICT_NUM_FAMILY_BLUES: 438 retval = sizeof ( type1->private_dict.num_family_blues ); 439 if ( value && value_len >= retval ) 440 *((FT_Byte *)value) = type1->private_dict.num_family_blues; 441 break; 442 443 case PS_DICT_FAMILY_BLUE: 444 if ( idx < type1->private_dict.num_family_blues ) 445 { 446 retval = sizeof ( type1->private_dict.family_blues[idx] ); 447 if ( value && value_len >= retval ) 448 *((FT_Short *)value) = type1->private_dict.family_blues[idx]; 449 } 450 break; 451 452 case PS_DICT_NUM_FAMILY_OTHER_BLUES: 453 retval = sizeof ( type1->private_dict.num_family_other_blues ); 454 if ( value && value_len >= retval ) 455 *((FT_Byte *)value) = type1->private_dict.num_family_other_blues; 456 break; 457 458 case PS_DICT_FAMILY_OTHER_BLUE: 459 if ( idx < type1->private_dict.num_family_other_blues ) 460 { 461 retval = sizeof ( type1->private_dict.family_other_blues[idx] ); 462 if ( value && value_len >= retval ) 463 *((FT_Short *)value) = type1->private_dict.family_other_blues[idx]; 464 } 465 break; 466 467 case PS_DICT_NUM_STEM_SNAP_H: 468 retval = sizeof ( type1->private_dict.num_snap_widths ); 469 if ( value && value_len >= retval ) 470 *((FT_Byte *)value) = type1->private_dict.num_snap_widths; 471 break; 472 473 case PS_DICT_STEM_SNAP_H: 474 if ( idx < type1->private_dict.num_snap_widths ) 475 { 476 retval = sizeof ( type1->private_dict.snap_widths[idx] ); 477 if ( value && value_len >= retval ) 478 *((FT_Short *)value) = type1->private_dict.snap_widths[idx]; 479 } 480 break; 481 482 case PS_DICT_NUM_STEM_SNAP_V: 483 retval = sizeof ( type1->private_dict.num_snap_heights ); 484 if ( value && value_len >= retval ) 485 *((FT_Byte *)value) = type1->private_dict.num_snap_heights; 486 break; 487 488 case PS_DICT_STEM_SNAP_V: 489 if ( idx < type1->private_dict.num_snap_heights ) 490 { 491 retval = sizeof ( type1->private_dict.snap_heights[idx] ); 492 if ( value && value_len >= retval ) 493 *((FT_Short *)value) = type1->private_dict.snap_heights[idx]; 494 } 495 break; 496 497 case PS_DICT_RND_STEM_UP: 498 retval = sizeof ( type1->private_dict.round_stem_up ); 499 if ( value && value_len >= retval ) 500 *((FT_Bool *)value) = type1->private_dict.round_stem_up; 501 break; 502 503 case PS_DICT_FORCE_BOLD: 504 retval = sizeof ( type1->private_dict.force_bold ); 505 if ( value && value_len >= retval ) 506 *((FT_Bool *)value) = type1->private_dict.force_bold; 507 break; 508 509 case PS_DICT_MIN_FEATURE: 510 if ( idx < sizeof ( type1->private_dict.min_feature ) / 511 sizeof ( type1->private_dict.min_feature[0] ) ) 512 { 513 retval = sizeof ( type1->private_dict.min_feature[idx] ); 514 if ( value && value_len >= retval ) 515 *((FT_Short *)value) = type1->private_dict.min_feature[idx]; 516 } 517 break; 518 519 case PS_DICT_LEN_IV: 520 retval = sizeof ( type1->private_dict.lenIV ); 521 if ( value && value_len >= retval ) 522 *((FT_Int *)value) = type1->private_dict.lenIV; 523 break; 524 525 case PS_DICT_PASSWORD: 526 retval = sizeof ( type1->private_dict.password ); 527 if ( value && value_len >= retval ) 528 *((FT_Long *)value) = type1->private_dict.password; 529 break; 530 531 case PS_DICT_LANGUAGE_GROUP: 532 retval = sizeof ( type1->private_dict.language_group ); 533 if ( value && value_len >= retval ) 534 *((FT_Long *)value) = type1->private_dict.language_group; 535 break; 536 537 case PS_DICT_IS_FIXED_PITCH: 538 retval = sizeof ( type1->font_info.is_fixed_pitch ); 539 if ( value && value_len >= retval ) 540 *((FT_Bool *)value) = type1->font_info.is_fixed_pitch; 541 break; 542 543 case PS_DICT_UNDERLINE_POSITION: 544 retval = sizeof ( type1->font_info.underline_position ); 545 if ( value && value_len >= retval ) 546 *((FT_Short *)value) = type1->font_info.underline_position; 547 break; 548 549 case PS_DICT_UNDERLINE_THICKNESS: 550 retval = sizeof ( type1->font_info.underline_thickness ); 551 if ( value && value_len >= retval ) 552 *((FT_UShort *)value) = type1->font_info.underline_thickness; 553 break; 554 555 case PS_DICT_FS_TYPE: 556 retval = sizeof ( type1->font_extra.fs_type ); 557 if ( value && value_len >= retval ) 558 *((FT_UShort *)value) = type1->font_extra.fs_type; 559 break; 560 561 case PS_DICT_VERSION: 562 retval = ft_strlen( type1->font_info.version ) + 1; 563 if ( value && value_len >= retval ) 564 ft_memcpy( value, (void *)( type1->font_info.version ), retval ); 565 break; 566 567 case PS_DICT_NOTICE: 568 retval = ft_strlen( type1->font_info.notice ) + 1; 569 if ( value && value_len >= retval ) 570 ft_memcpy( value, (void *)( type1->font_info.notice ), retval ); 571 break; 572 573 case PS_DICT_FULL_NAME: 574 retval = ft_strlen( type1->font_info.full_name ) + 1; 575 if ( value && value_len >= retval ) 576 ft_memcpy( value, (void *)( type1->font_info.full_name ), retval ); 577 break; 578 579 case PS_DICT_FAMILY_NAME: 580 retval = ft_strlen( type1->font_info.family_name ) + 1; 581 if ( value && value_len >= retval ) 582 ft_memcpy( value, (void *)( type1->font_info.family_name ), retval ); 583 break; 584 585 case PS_DICT_WEIGHT: 586 retval = ft_strlen( type1->font_info.weight ) + 1; 587 if ( value && value_len >= retval ) 588 ft_memcpy( value, (void *)( type1->font_info.weight ), retval ); 589 break; 590 591 case PS_DICT_ITALIC_ANGLE: 592 retval = sizeof ( type1->font_info.italic_angle ); 593 if ( value && value_len >= retval ) 594 *((FT_Long *)value) = type1->font_info.italic_angle; 595 break; 596 } 597 598 return retval == 0 ? -1 : (FT_Long)retval; 599 } 600 601 602 static const FT_Service_PsInfoRec t1_service_ps_info = 603 { 604 (PS_GetFontInfoFunc) t1_ps_get_font_info, /* ps_get_font_info */ 605 (PS_GetFontExtraFunc) t1_ps_get_font_extra, /* ps_get_font_extra */ 606 (PS_HasGlyphNamesFunc) t1_ps_has_glyph_names, /* ps_has_glyph_names */ 607 (PS_GetFontPrivateFunc)t1_ps_get_font_private, /* ps_get_font_private */ 608 (PS_GetFontValueFunc) t1_ps_get_font_value, /* ps_get_font_value */ 609 }; 610 611 612 #ifndef T1_CONFIG_OPTION_NO_AFM 613 static const FT_Service_KerningRec t1_service_kerning = 614 { 615 T1_Get_Track_Kerning, /* get_track */ 616 }; 617 #endif 618 619 620 /* 621 * PROPERTY SERVICE 622 * 623 */ 624 625 FT_DEFINE_SERVICE_PROPERTIESREC( 626 t1_service_properties, 627 628 (FT_Properties_SetFunc)ps_property_set, /* set_property */ 629 (FT_Properties_GetFunc)ps_property_get ) /* get_property */ 630 631 632 /* 633 * SERVICE LIST 634 * 635 */ 636 637 static const FT_ServiceDescRec t1_services[] = 638 { 639 { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t1_service_ps_name }, 640 { FT_SERVICE_ID_GLYPH_DICT, &t1_service_glyph_dict }, 641 { FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_TYPE_1 }, 642 { FT_SERVICE_ID_POSTSCRIPT_INFO, &t1_service_ps_info }, 643 { FT_SERVICE_ID_PROPERTIES, &t1_service_properties }, 644 645 #ifndef T1_CONFIG_OPTION_NO_AFM 646 { FT_SERVICE_ID_KERNING, &t1_service_kerning }, 647 #endif 648 649 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT 650 { FT_SERVICE_ID_MULTI_MASTERS, &t1_service_multi_masters }, 651 #endif 652 { NULL, NULL } 653 }; 654 655 656 FT_CALLBACK_DEF( FT_Module_Interface ) 657 Get_Interface( FT_Module module, 658 const FT_String* t1_interface ) 659 { 660 FT_UNUSED( module ); 661 662 return ft_service_list_lookup( t1_services, t1_interface ); 663 } 664 665 666 #ifndef T1_CONFIG_OPTION_NO_AFM 667 668 /*************************************************************************/ 669 /* */ 670 /* <Function> */ 671 /* Get_Kerning */ 672 /* */ 673 /* <Description> */ 674 /* A driver method used to return the kerning vector between two */ 675 /* glyphs of the same face. */ 676 /* */ 677 /* <Input> */ 678 /* face :: A handle to the source face object. */ 679 /* */ 680 /* left_glyph :: The index of the left glyph in the kern pair. */ 681 /* */ 682 /* right_glyph :: The index of the right glyph in the kern pair. */ 683 /* */ 684 /* <Output> */ 685 /* kerning :: The kerning vector. This is in font units for */ 686 /* scalable formats, and in pixels for fixed-sizes */ 687 /* formats. */ 688 /* */ 689 /* <Return> */ 690 /* FreeType error code. 0 means success. */ 691 /* */ 692 /* <Note> */ 693 /* Only horizontal layouts (left-to-right & right-to-left) are */ 694 /* supported by this function. Other layouts, or more sophisticated */ 695 /* kernings are out of scope of this method (the basic driver */ 696 /* interface is meant to be simple). */ 697 /* */ 698 /* They can be implemented by format-specific interfaces. */ 699 /* */ 700 static FT_Error 701 Get_Kerning( FT_Face t1face, /* T1_Face */ 702 FT_UInt left_glyph, 703 FT_UInt right_glyph, 704 FT_Vector* kerning ) 705 { 706 T1_Face face = (T1_Face)t1face; 707 708 709 kerning->x = 0; 710 kerning->y = 0; 711 712 if ( face->afm_data ) 713 T1_Get_Kerning( (AFM_FontInfo)face->afm_data, 714 left_glyph, 715 right_glyph, 716 kerning ); 717 718 return FT_Err_Ok; 719 } 720 721 722 #endif /* T1_CONFIG_OPTION_NO_AFM */ 723 724 725 FT_CALLBACK_TABLE_DEF 726 const FT_Driver_ClassRec t1_driver_class = 727 { 728 { 729 FT_MODULE_FONT_DRIVER | 730 FT_MODULE_DRIVER_SCALABLE | 731 FT_MODULE_DRIVER_HAS_HINTER, 732 733 sizeof ( PS_DriverRec ), 734 735 "type1", 736 0x10000L, 737 0x20000L, 738 739 NULL, /* module-specific interface */ 740 741 T1_Driver_Init, /* FT_Module_Constructor module_init */ 742 T1_Driver_Done, /* FT_Module_Destructor module_done */ 743 Get_Interface, /* FT_Module_Requester get_interface */ 744 }, 745 746 sizeof ( T1_FaceRec ), 747 sizeof ( T1_SizeRec ), 748 sizeof ( T1_GlyphSlotRec ), 749 750 T1_Face_Init, /* FT_Face_InitFunc init_face */ 751 T1_Face_Done, /* FT_Face_DoneFunc done_face */ 752 T1_Size_Init, /* FT_Size_InitFunc init_size */ 753 T1_Size_Done, /* FT_Size_DoneFunc done_size */ 754 T1_GlyphSlot_Init, /* FT_Slot_InitFunc init_slot */ 755 T1_GlyphSlot_Done, /* FT_Slot_DoneFunc done_slot */ 756 757 T1_Load_Glyph, /* FT_Slot_LoadFunc load_glyph */ 758 759 #ifdef T1_CONFIG_OPTION_NO_AFM 760 NULL, /* FT_Face_GetKerningFunc get_kerning */ 761 NULL, /* FT_Face_AttachFunc attach_file */ 762 #else 763 Get_Kerning, /* FT_Face_GetKerningFunc get_kerning */ 764 T1_Read_Metrics, /* FT_Face_AttachFunc attach_file */ 765 #endif 766 T1_Get_Advances, /* FT_Face_GetAdvancesFunc get_advances */ 767 768 T1_Size_Request, /* FT_Size_RequestFunc request_size */ 769 NULL /* FT_Size_SelectFunc select_size */ 770 }; 771 772 773 /* END */ 774
