1 /***************************************************************************/ 2 /* */ 3 /* psaux.h */ 4 /* */ 5 /* Auxiliary functions and data structures related to PostScript fonts */ 6 /* (specification). */ 7 /* */ 8 /* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 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 #ifndef __PSAUX_H__ 21 #define __PSAUX_H__ 22 23 24 #include <ft2build.h> 25 #include FT_INTERNAL_OBJECTS_H 26 #include FT_INTERNAL_TYPE1_TYPES_H 27 #include FT_SERVICE_POSTSCRIPT_CMAPS_H 28 29 30 FT_BEGIN_HEADER 31 32 33 /*************************************************************************/ 34 /*************************************************************************/ 35 /***** *****/ 36 /***** T1_TABLE *****/ 37 /***** *****/ 38 /*************************************************************************/ 39 /*************************************************************************/ 40 41 42 typedef struct PS_TableRec_* PS_Table; 43 typedef const struct PS_Table_FuncsRec_* PS_Table_Funcs; 44 45 46 /*************************************************************************/ 47 /* */ 48 /* <Struct> */ 49 /* PS_Table_FuncsRec */ 50 /* */ 51 /* <Description> */ 52 /* A set of function pointers to manage PS_Table objects. */ 53 /* */ 54 /* <Fields> */ 55 /* table_init :: Used to initialize a table. */ 56 /* */ 57 /* table_done :: Finalizes resp. destroy a given table. */ 58 /* */ 59 /* table_add :: Adds a new object to a table. */ 60 /* */ 61 /* table_release :: Releases table data, then finalizes it. */ 62 /* */ 63 typedef struct PS_Table_FuncsRec_ 64 { 65 FT_Error 66 (*init)( PS_Table table, 67 FT_Int count, 68 FT_Memory memory ); 69 70 void 71 (*done)( PS_Table table ); 72 73 FT_Error 74 (*add)( PS_Table table, 75 FT_Int idx, 76 void* object, 77 FT_PtrDist length ); 78 79 void 80 (*release)( PS_Table table ); 81 82 } PS_Table_FuncsRec; 83 84 85 /*************************************************************************/ 86 /* */ 87 /* <Struct> */ 88 /* PS_TableRec */ 89 /* */ 90 /* <Description> */ 91 /* A PS_Table is a simple object used to store an array of objects in */ 92 /* a single memory block. */ 93 /* */ 94 /* <Fields> */ 95 /* block :: The address in memory of the growheap's block. This */ 96 /* can change between two object adds, due to */ 97 /* reallocation. */ 98 /* */ 99 /* cursor :: The current top of the grow heap within its block. */ 100 /* */ 101 /* capacity :: The current size of the heap block. Increments by */ 102 /* 1kByte chunks. */ 103 /* */ 104 /* max_elems :: The maximum number of elements in table. */ 105 /* */ 106 /* num_elems :: The current number of elements in table. */ 107 /* */ 108 /* elements :: A table of element addresses within the block. */ 109 /* */ 110 /* lengths :: A table of element sizes within the block. */ 111 /* */ 112 /* memory :: The object used for memory operations */ 113 /* (alloc/realloc). */ 114 /* */ 115 /* funcs :: A table of method pointers for this object. */ 116 /* */ 117 typedef struct PS_TableRec_ 118 { 119 FT_Byte* block; /* current memory block */ 120 FT_Offset cursor; /* current cursor in memory block */ 121 FT_Offset capacity; /* current size of memory block */ 122 FT_Long init; 123 124 FT_Int max_elems; 125 FT_Int num_elems; 126 FT_Byte** elements; /* addresses of table elements */ 127 FT_PtrDist* lengths; /* lengths of table elements */ 128 129 FT_Memory memory; 130 PS_Table_FuncsRec funcs; 131 132 } PS_TableRec; 133 134 135 /*************************************************************************/ 136 /*************************************************************************/ 137 /***** *****/ 138 /***** T1 FIELDS & TOKENS *****/ 139 /***** *****/ 140 /*************************************************************************/ 141 /*************************************************************************/ 142 143 typedef struct PS_ParserRec_* PS_Parser; 144 145 typedef struct T1_TokenRec_* T1_Token; 146 147 typedef struct T1_FieldRec_* T1_Field; 148 149 150 /* simple enumeration type used to identify token types */ 151 typedef enum T1_TokenType_ 152 { 153 T1_TOKEN_TYPE_NONE = 0, 154 T1_TOKEN_TYPE_ANY, 155 T1_TOKEN_TYPE_STRING, 156 T1_TOKEN_TYPE_ARRAY, 157 T1_TOKEN_TYPE_KEY, /* aka `name' */ 158 159 /* do not remove */ 160 T1_TOKEN_TYPE_MAX 161 162 } T1_TokenType; 163 164 165 /* a simple structure used to identify tokens */ 166 typedef struct T1_TokenRec_ 167 { 168 FT_Byte* start; /* first character of token in input stream */ 169 FT_Byte* limit; /* first character after the token */ 170 T1_TokenType type; /* type of token */ 171 172 } T1_TokenRec; 173 174 175 /* enumeration type used to identify object fields */ 176 typedef enum T1_FieldType_ 177 { 178 T1_FIELD_TYPE_NONE = 0, 179 T1_FIELD_TYPE_BOOL, 180 T1_FIELD_TYPE_INTEGER, 181 T1_FIELD_TYPE_FIXED, 182 T1_FIELD_TYPE_FIXED_1000, 183 T1_FIELD_TYPE_STRING, 184 T1_FIELD_TYPE_KEY, 185 T1_FIELD_TYPE_BBOX, 186 T1_FIELD_TYPE_INTEGER_ARRAY, 187 T1_FIELD_TYPE_FIXED_ARRAY, 188 T1_FIELD_TYPE_CALLBACK, 189 190 /* do not remove */ 191 T1_FIELD_TYPE_MAX 192 193 } T1_FieldType; 194 195 196 typedef enum T1_FieldLocation_ 197 { 198 T1_FIELD_LOCATION_CID_INFO, 199 T1_FIELD_LOCATION_FONT_DICT, 200 T1_FIELD_LOCATION_FONT_EXTRA, 201 T1_FIELD_LOCATION_FONT_INFO, 202 T1_FIELD_LOCATION_PRIVATE, 203 T1_FIELD_LOCATION_BBOX, 204 T1_FIELD_LOCATION_LOADER, 205 T1_FIELD_LOCATION_FACE, 206 T1_FIELD_LOCATION_BLEND, 207 208 /* do not remove */ 209 T1_FIELD_LOCATION_MAX 210 211 } T1_FieldLocation; 212 213 214 typedef void 215 (*T1_Field_ParseFunc)( FT_Face face, 216 FT_Pointer parser ); 217 218 219 /* structure type used to model object fields */ 220 typedef struct T1_FieldRec_ 221 { 222 const char* ident; /* field identifier */ 223 T1_FieldLocation location; 224 T1_FieldType type; /* type of field */ 225 T1_Field_ParseFunc reader; 226 FT_UInt offset; /* offset of field in object */ 227 FT_Byte size; /* size of field in bytes */ 228 FT_UInt array_max; /* maximal number of elements for */ 229 /* array */ 230 FT_UInt count_offset; /* offset of element count for */ 231 /* arrays; must not be zero if in */ 232 /* use -- in other words, a */ 233 /* `num_FOO' element must not */ 234 /* start the used structure if we */ 235 /* parse a `FOO' array */ 236 FT_UInt dict; /* where we expect it */ 237 } T1_FieldRec; 238 239 #define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */ 240 #define T1_FIELD_DICT_PRIVATE ( 1 << 1 ) 241 242 243 244 #define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \ 245 { \ 246 _ident, T1CODE, _type, \ 247 0, \ 248 FT_FIELD_OFFSET( _fname ), \ 249 FT_FIELD_SIZE( _fname ), \ 250 0, 0, \ 251 _dict \ 252 }, 253 254 #define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \ 255 { \ 256 _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \ 257 (T1_Field_ParseFunc)_reader, \ 258 0, 0, \ 259 0, 0, \ 260 _dict \ 261 }, 262 263 #define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \ 264 { \ 265 _ident, T1CODE, _type, \ 266 0, \ 267 FT_FIELD_OFFSET( _fname ), \ 268 FT_FIELD_SIZE_DELTA( _fname ), \ 269 _max, \ 270 FT_FIELD_OFFSET( num_ ## _fname ), \ 271 _dict \ 272 }, 273 274 #define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \ 275 { \ 276 _ident, T1CODE, _type, \ 277 0, \ 278 FT_FIELD_OFFSET( _fname ), \ 279 FT_FIELD_SIZE_DELTA( _fname ), \ 280 _max, 0, \ 281 _dict \ 282 }, 283 284 285 #define T1_FIELD_BOOL( _ident, _fname, _dict ) \ 286 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict ) 287 288 #define T1_FIELD_NUM( _ident, _fname, _dict ) \ 289 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict ) 290 291 #define T1_FIELD_FIXED( _ident, _fname, _dict ) \ 292 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict ) 293 294 #define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \ 295 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \ 296 _dict ) 297 298 #define T1_FIELD_STRING( _ident, _fname, _dict ) \ 299 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict ) 300 301 #define T1_FIELD_KEY( _ident, _fname, _dict ) \ 302 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict ) 303 304 #define T1_FIELD_BBOX( _ident, _fname, _dict ) \ 305 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict ) 306 307 308 #define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \ 309 T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ 310 _fname, _fmax, _dict ) 311 312 #define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \ 313 T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ 314 _fname, _fmax, _dict ) 315 316 #define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \ 317 T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ 318 _fname, _fmax, _dict ) 319 320 #define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \ 321 T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ 322 _fname, _fmax, _dict ) 323 324 #define T1_FIELD_CALLBACK( _ident, _name, _dict ) \ 325 T1_NEW_CALLBACK_FIELD( _ident, _name, _dict ) 326 327 328 /*************************************************************************/ 329 /*************************************************************************/ 330 /***** *****/ 331 /***** T1 PARSER *****/ 332 /***** *****/ 333 /*************************************************************************/ 334 /*************************************************************************/ 335 336 typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs; 337 338 typedef struct PS_Parser_FuncsRec_ 339 { 340 void 341 (*init)( PS_Parser parser, 342 FT_Byte* base, 343 FT_Byte* limit, 344 FT_Memory memory ); 345 346 void 347 (*done)( PS_Parser parser ); 348 349 void 350 (*skip_spaces)( PS_Parser parser ); 351 void 352 (*skip_PS_token)( PS_Parser parser ); 353 354 FT_Long 355 (*to_int)( PS_Parser parser ); 356 FT_Fixed 357 (*to_fixed)( PS_Parser parser, 358 FT_Int power_ten ); 359 360 FT_Error 361 (*to_bytes)( PS_Parser parser, 362 FT_Byte* bytes, 363 FT_Offset max_bytes, 364 FT_Long* pnum_bytes, 365 FT_Bool delimiters ); 366 367 FT_Int 368 (*to_coord_array)( PS_Parser parser, 369 FT_Int max_coords, 370 FT_Short* coords ); 371 FT_Int 372 (*to_fixed_array)( PS_Parser parser, 373 FT_Int max_values, 374 FT_Fixed* values, 375 FT_Int power_ten ); 376 377 void 378 (*to_token)( PS_Parser parser, 379 T1_Token token ); 380 void 381 (*to_token_array)( PS_Parser parser, 382 T1_Token tokens, 383 FT_UInt max_tokens, 384 FT_Int* pnum_tokens ); 385 386 FT_Error 387 (*load_field)( PS_Parser parser, 388 const T1_Field field, 389 void** objects, 390 FT_UInt max_objects, 391 FT_ULong* pflags ); 392 393 FT_Error 394 (*load_field_table)( PS_Parser parser, 395 const T1_Field field, 396 void** objects, 397 FT_UInt max_objects, 398 FT_ULong* pflags ); 399 400 } PS_Parser_FuncsRec; 401 402 403 /*************************************************************************/ 404 /* */ 405 /* <Struct> */ 406 /* PS_ParserRec */ 407 /* */ 408 /* <Description> */ 409 /* A PS_Parser is an object used to parse a Type 1 font very quickly. */ 410 /* */ 411 /* <Fields> */ 412 /* cursor :: The current position in the text. */ 413 /* */ 414 /* base :: Start of the processed text. */ 415 /* */ 416 /* limit :: End of the processed text. */ 417 /* */ 418 /* error :: The last error returned. */ 419 /* */ 420 /* memory :: The object used for memory operations (alloc/realloc). */ 421 /* */ 422 /* funcs :: A table of functions for the parser. */ 423 /* */ 424 typedef struct PS_ParserRec_ 425 { 426 FT_Byte* cursor; 427 FT_Byte* base; 428 FT_Byte* limit; 429 FT_Error error; 430 FT_Memory memory; 431 432 PS_Parser_FuncsRec funcs; 433 434 } PS_ParserRec; 435 436 437 /*************************************************************************/ 438 /*************************************************************************/ 439 /***** *****/ 440 /***** T1 BUILDER *****/ 441 /***** *****/ 442 /*************************************************************************/ 443 /*************************************************************************/ 444 445 446 typedef struct T1_BuilderRec_* T1_Builder; 447 448 449 typedef FT_Error 450 (*T1_Builder_Check_Points_Func)( T1_Builder builder, 451 FT_Int count ); 452 453 typedef void 454 (*T1_Builder_Add_Point_Func)( T1_Builder builder, 455 FT_Pos x, 456 FT_Pos y, 457 FT_Byte flag ); 458 459 typedef FT_Error 460 (*T1_Builder_Add_Point1_Func)( T1_Builder builder, 461 FT_Pos x, 462 FT_Pos y ); 463 464 typedef FT_Error 465 (*T1_Builder_Add_Contour_Func)( T1_Builder builder ); 466 467 typedef FT_Error 468 (*T1_Builder_Start_Point_Func)( T1_Builder builder, 469 FT_Pos x, 470 FT_Pos y ); 471 472 typedef void 473 (*T1_Builder_Close_Contour_Func)( T1_Builder builder ); 474 475 476 typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs; 477 478 typedef struct T1_Builder_FuncsRec_ 479 { 480 void 481 (*init)( T1_Builder builder, 482 FT_Face face, 483 FT_Size size, 484 FT_GlyphSlot slot, 485 FT_Bool hinting ); 486 487 void 488 (*done)( T1_Builder builder ); 489 490 T1_Builder_Check_Points_Func check_points; 491 T1_Builder_Add_Point_Func add_point; 492 T1_Builder_Add_Point1_Func add_point1; 493 T1_Builder_Add_Contour_Func add_contour; 494 T1_Builder_Start_Point_Func start_point; 495 T1_Builder_Close_Contour_Func close_contour; 496 497 } T1_Builder_FuncsRec; 498 499 500 /* an enumeration type to handle charstring parsing states */ 501 typedef enum T1_ParseState_ 502 { 503 T1_Parse_Start, 504 T1_Parse_Have_Width, 505 T1_Parse_Have_Moveto, 506 T1_Parse_Have_Path 507 508 } T1_ParseState; 509 510 511 /*************************************************************************/ 512 /* */ 513 /* <Structure> */ 514 /* T1_BuilderRec */ 515 /* */ 516 /* <Description> */ 517 /* A structure used during glyph loading to store its outline. */ 518 /* */ 519 /* <Fields> */ 520 /* memory :: The current memory object. */ 521 /* */ 522 /* face :: The current face object. */ 523 /* */ 524 /* glyph :: The current glyph slot. */ 525 /* */ 526 /* loader :: XXX */ 527 /* */ 528 /* base :: The base glyph outline. */ 529 /* */ 530 /* current :: The current glyph outline. */ 531 /* */ 532 /* max_points :: maximum points in builder outline */ 533 /* */ 534 /* max_contours :: Maximal number of contours in builder outline. */ 535 /* */ 536 /* pos_x :: The horizontal translation (if composite glyph). */ 537 /* */ 538 /* pos_y :: The vertical translation (if composite glyph). */ 539 /* */ 540 /* left_bearing :: The left side bearing point. */ 541 /* */ 542 /* advance :: The horizontal advance vector. */ 543 /* */ 544 /* bbox :: Unused. */ 545 /* */ 546 /* parse_state :: An enumeration which controls the charstring */ 547 /* parsing state. */ 548 /* */ 549 /* load_points :: If this flag is not set, no points are loaded. */ 550 /* */ 551 /* no_recurse :: Set but not used. */ 552 /* */ 553 /* metrics_only :: A boolean indicating that we only want to compute */ 554 /* the metrics of a given glyph, not load all of its */ 555 /* points. */ 556 /* */ 557 /* funcs :: An array of function pointers for the builder. */ 558 /* */ 559 typedef struct T1_BuilderRec_ 560 { 561 FT_Memory memory; 562 FT_Face face; 563 FT_GlyphSlot glyph; 564 FT_GlyphLoader loader; 565 FT_Outline* base; 566 FT_Outline* current; 567 568 FT_Pos pos_x; 569 FT_Pos pos_y; 570 571 FT_Vector left_bearing; 572 FT_Vector advance; 573 574 FT_BBox bbox; /* bounding box */ 575 T1_ParseState parse_state; 576 FT_Bool load_points; 577 FT_Bool no_recurse; 578 579 FT_Bool metrics_only; 580 581 void* hints_funcs; /* hinter-specific */ 582 void* hints_globals; /* hinter-specific */ 583 584 T1_Builder_FuncsRec funcs; 585 586 } T1_BuilderRec; 587 588 589 /*************************************************************************/ 590 /*************************************************************************/ 591 /***** *****/ 592 /***** T1 DECODER *****/ 593 /***** *****/ 594 /*************************************************************************/ 595 /*************************************************************************/ 596 597 #if 0 598 599 /*************************************************************************/ 600 /* */ 601 /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ 602 /* calls during glyph loading. */ 603 /* */ 604 #define T1_MAX_SUBRS_CALLS 8 605 606 607 /*************************************************************************/ 608 /* */ 609 /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ 610 /* minimum of 16 is required. */ 611 /* */ 612 #define T1_MAX_CHARSTRINGS_OPERANDS 32 613 614 #endif /* 0 */ 615 616 617 typedef struct T1_Decoder_ZoneRec_ 618 { 619 FT_Byte* cursor; 620 FT_Byte* base; 621 FT_Byte* limit; 622 623 } T1_Decoder_ZoneRec, *T1_Decoder_Zone; 624 625 626 typedef struct T1_DecoderRec_* T1_Decoder; 627 typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs; 628 629 630 typedef FT_Error 631 (*T1_Decoder_Callback)( T1_Decoder decoder, 632 FT_UInt glyph_index ); 633 634 635 typedef struct T1_Decoder_FuncsRec_ 636 { 637 FT_Error 638 (*init)( T1_Decoder decoder, 639 FT_Face face, 640 FT_Size size, 641 FT_GlyphSlot slot, 642 FT_Byte** glyph_names, 643 PS_Blend blend, 644 FT_Bool hinting, 645 FT_Render_Mode hint_mode, 646 T1_Decoder_Callback callback ); 647 648 void 649 (*done)( T1_Decoder decoder ); 650 651 FT_Error 652 (*parse_charstrings)( T1_Decoder decoder, 653 FT_Byte* base, 654 FT_UInt len ); 655 656 } T1_Decoder_FuncsRec; 657 658 659 typedef struct T1_DecoderRec_ 660 { 661 T1_BuilderRec builder; 662 663 FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS]; 664 FT_Long* top; 665 666 T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1]; 667 T1_Decoder_Zone zone; 668 669 FT_Service_PsCMaps psnames; /* for seac */ 670 FT_UInt num_glyphs; 671 FT_Byte** glyph_names; 672 673 FT_Int lenIV; /* internal for sub routine calls */ 674 FT_UInt num_subrs; 675 FT_Byte** subrs; 676 FT_PtrDist* subrs_len; /* array of subrs length (optional) */ 677 678 FT_Matrix font_matrix; 679 FT_Vector font_offset; 680 681 FT_Int flex_state; 682 FT_Int num_flex_vectors; 683 FT_Vector flex_vectors[7]; 684 685 PS_Blend blend; /* for multiple master support */ 686 687 FT_Render_Mode hint_mode; 688 689 T1_Decoder_Callback parse_callback; 690 T1_Decoder_FuncsRec funcs; 691 692 FT_Long* buildchar; 693 FT_UInt len_buildchar; 694 695 FT_Bool seac; 696 697 } T1_DecoderRec; 698 699 700 /*************************************************************************/ 701 /*************************************************************************/ 702 /***** *****/ 703 /***** AFM PARSER *****/ 704 /***** *****/ 705 /*************************************************************************/ 706 /*************************************************************************/ 707 708 typedef struct AFM_ParserRec_* AFM_Parser; 709 710 typedef struct AFM_Parser_FuncsRec_ 711 { 712 FT_Error 713 (*init)( AFM_Parser parser, 714 FT_Memory memory, 715 FT_Byte* base, 716 FT_Byte* limit ); 717 718 void 719 (*done)( AFM_Parser parser ); 720 721 FT_Error 722 (*parse)( AFM_Parser parser ); 723 724 } AFM_Parser_FuncsRec; 725 726 727 typedef struct AFM_StreamRec_* AFM_Stream; 728 729 730 /*************************************************************************/ 731 /* */ 732 /* <Struct> */ 733 /* AFM_ParserRec */ 734 /* */ 735 /* <Description> */ 736 /* An AFM_Parser is a parser for the AFM files. */ 737 /* */ 738 /* <Fields> */ 739 /* memory :: The object used for memory operations (alloc and */ 740 /* realloc). */ 741 /* */ 742 /* stream :: This is an opaque object. */ 743 /* */ 744 /* FontInfo :: The result will be stored here. */ 745 /* */ 746 /* get_index :: A user provided function to get a glyph index by its */ 747 /* name. */ 748 /* */ 749 typedef struct AFM_ParserRec_ 750 { 751 FT_Memory memory; 752 AFM_Stream stream; 753 754 AFM_FontInfo FontInfo; 755 756 FT_Int 757 (*get_index)( const char* name, 758 FT_Offset len, 759 void* user_data ); 760 761 void* user_data; 762 763 } AFM_ParserRec; 764 765 766 /*************************************************************************/ 767 /*************************************************************************/ 768 /***** *****/ 769 /***** TYPE1 CHARMAPS *****/ 770 /***** *****/ 771 /*************************************************************************/ 772 /*************************************************************************/ 773 774 typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes; 775 776 typedef struct T1_CMap_ClassesRec_ 777 { 778 FT_CMap_Class standard; 779 FT_CMap_Class expert; 780 FT_CMap_Class custom; 781 FT_CMap_Class unicode; 782 783 } T1_CMap_ClassesRec; 784 785 786 /*************************************************************************/ 787 /*************************************************************************/ 788 /***** *****/ 789 /***** PSAux Module Interface *****/ 790 /***** *****/ 791 /*************************************************************************/ 792 /*************************************************************************/ 793 794 typedef struct PSAux_ServiceRec_ 795 { 796 /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */ 797 const PS_Table_FuncsRec* ps_table_funcs; 798 const PS_Parser_FuncsRec* ps_parser_funcs; 799 const T1_Builder_FuncsRec* t1_builder_funcs; 800 const T1_Decoder_FuncsRec* t1_decoder_funcs; 801 802 void 803 (*t1_decrypt)( FT_Byte* buffer, 804 FT_Offset length, 805 FT_UShort seed ); 806 807 T1_CMap_Classes t1_cmap_classes; 808 809 /* fields after this comment line were added after version 2.1.10 */ 810 const AFM_Parser_FuncsRec* afm_parser_funcs; 811 812 } PSAux_ServiceRec, *PSAux_Service; 813 814 /* backwards-compatible type definition */ 815 typedef PSAux_ServiceRec PSAux_Interface; 816 817 818 /*************************************************************************/ 819 /*************************************************************************/ 820 /***** *****/ 821 /***** Some convenience functions *****/ 822 /***** *****/ 823 /*************************************************************************/ 824 /*************************************************************************/ 825 826 #define IS_PS_NEWLINE( ch ) \ 827 ( (ch) == '\r' || \ 828 (ch) == '\n' ) 829 830 #define IS_PS_SPACE( ch ) \ 831 ( (ch) == ' ' || \ 832 IS_PS_NEWLINE( ch ) || \ 833 (ch) == '\t' || \ 834 (ch) == '\f' || \ 835 (ch) == '\0' ) 836 837 #define IS_PS_SPECIAL( ch ) \ 838 ( (ch) == '/' || \ 839 (ch) == '(' || (ch) == ')' || \ 840 (ch) == '<' || (ch) == '>' || \ 841 (ch) == '[' || (ch) == ']' || \ 842 (ch) == '{' || (ch) == '}' || \ 843 (ch) == '%' ) 844 845 #define IS_PS_DELIM( ch ) \ 846 ( IS_PS_SPACE( ch ) || \ 847 IS_PS_SPECIAL( ch ) ) 848 849 #define IS_PS_DIGIT( ch ) \ 850 ( (ch) >= '0' && (ch) <= '9' ) 851 852 #define IS_PS_XDIGIT( ch ) \ 853 ( IS_PS_DIGIT( ch ) || \ 854 ( (ch) >= 'A' && (ch) <= 'F' ) || \ 855 ( (ch) >= 'a' && (ch) <= 'f' ) ) 856 857 #define IS_PS_BASE85( ch ) \ 858 ( (ch) >= '!' && (ch) <= 'u' ) 859 860 #define IS_PS_TOKEN( cur, limit, token ) \ 861 ( (char)(cur)[0] == (token)[0] && \ 862 ( (cur) + sizeof ( (token) ) == (limit) || \ 863 ( (cur) + sizeof( (token) ) < (limit) && \ 864 IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \ 865 ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 ) 866 867 868 FT_END_HEADER 869 870 #endif /* __PSAUX_H__ */ 871 872 873 /* END */ 874