psaux.h revision f463818dd9146e11105c0572fb119e757eb47768
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 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 30FT_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_INFO, 201 T1_FIELD_LOCATION_PRIVATE, 202 T1_FIELD_LOCATION_BBOX, 203 T1_FIELD_LOCATION_LOADER, 204 T1_FIELD_LOCATION_FACE, 205 T1_FIELD_LOCATION_BLEND, 206 207 /* do not remove */ 208 T1_FIELD_LOCATION_MAX 209 210 } T1_FieldLocation; 211 212 213 typedef void 214 (*T1_Field_ParseFunc)( FT_Face face, 215 FT_Pointer parser ); 216 217 218 /* structure type used to model object fields */ 219 typedef struct T1_FieldRec_ 220 { 221 const char* ident; /* field identifier */ 222 T1_FieldLocation location; 223 T1_FieldType type; /* type of field */ 224 T1_Field_ParseFunc reader; 225 FT_UInt offset; /* offset of field in object */ 226 FT_Byte size; /* size of field in bytes */ 227 FT_UInt array_max; /* maximal number of elements for */ 228 /* array */ 229 FT_UInt count_offset; /* offset of element count for */ 230 /* arrays */ 231 FT_UInt dict; /* where we expect it */ 232 } T1_FieldRec; 233 234#define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */ 235#define T1_FIELD_DICT_PRIVATE ( 1 << 1 ) 236 237 238 239#define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \ 240 { \ 241 _ident, T1CODE, _type, \ 242 0, \ 243 FT_FIELD_OFFSET( _fname ), \ 244 FT_FIELD_SIZE( _fname ), \ 245 0, 0, \ 246 _dict \ 247 }, 248 249#define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \ 250 { \ 251 _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \ 252 (T1_Field_ParseFunc)_reader, \ 253 0, 0, \ 254 0, 0, \ 255 _dict \ 256 }, 257 258#define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \ 259 { \ 260 _ident, T1CODE, _type, \ 261 0, \ 262 FT_FIELD_OFFSET( _fname ), \ 263 FT_FIELD_SIZE_DELTA( _fname ), \ 264 _max, \ 265 FT_FIELD_OFFSET( num_ ## _fname ), \ 266 _dict \ 267 }, 268 269#define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \ 270 { \ 271 _ident, T1CODE, _type, \ 272 0, \ 273 FT_FIELD_OFFSET( _fname ), \ 274 FT_FIELD_SIZE_DELTA( _fname ), \ 275 _max, 0, \ 276 _dict \ 277 }, 278 279 280#define T1_FIELD_BOOL( _ident, _fname, _dict ) \ 281 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict ) 282 283#define T1_FIELD_NUM( _ident, _fname, _dict ) \ 284 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict ) 285 286#define T1_FIELD_FIXED( _ident, _fname, _dict ) \ 287 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict ) 288 289#define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \ 290 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \ 291 _dict ) 292 293#define T1_FIELD_STRING( _ident, _fname, _dict ) \ 294 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict ) 295 296#define T1_FIELD_KEY( _ident, _fname, _dict ) \ 297 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict ) 298 299#define T1_FIELD_BBOX( _ident, _fname, _dict ) \ 300 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict ) 301 302 303#define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \ 304 T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ 305 _fname, _fmax, _dict ) 306 307#define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \ 308 T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ 309 _fname, _fmax, _dict ) 310 311#define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \ 312 T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ 313 _fname, _fmax, _dict ) 314 315#define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \ 316 T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ 317 _fname, _fmax, _dict ) 318 319#define T1_FIELD_CALLBACK( _ident, _name, _dict ) \ 320 T1_NEW_CALLBACK_FIELD( _ident, _name, _dict ) 321 322 323 /*************************************************************************/ 324 /*************************************************************************/ 325 /***** *****/ 326 /***** T1 PARSER *****/ 327 /***** *****/ 328 /*************************************************************************/ 329 /*************************************************************************/ 330 331 typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs; 332 333 typedef struct PS_Parser_FuncsRec_ 334 { 335 void 336 (*init)( PS_Parser parser, 337 FT_Byte* base, 338 FT_Byte* limit, 339 FT_Memory memory ); 340 341 void 342 (*done)( PS_Parser parser ); 343 344 void 345 (*skip_spaces)( PS_Parser parser ); 346 void 347 (*skip_PS_token)( PS_Parser parser ); 348 349 FT_Long 350 (*to_int)( PS_Parser parser ); 351 FT_Fixed 352 (*to_fixed)( PS_Parser parser, 353 FT_Int power_ten ); 354 355 FT_Error 356 (*to_bytes)( PS_Parser parser, 357 FT_Byte* bytes, 358 FT_Long max_bytes, 359 FT_Long* pnum_bytes, 360 FT_Bool delimiters ); 361 362 FT_Int 363 (*to_coord_array)( PS_Parser parser, 364 FT_Int max_coords, 365 FT_Short* coords ); 366 FT_Int 367 (*to_fixed_array)( PS_Parser parser, 368 FT_Int max_values, 369 FT_Fixed* values, 370 FT_Int power_ten ); 371 372 void 373 (*to_token)( PS_Parser parser, 374 T1_Token token ); 375 void 376 (*to_token_array)( PS_Parser parser, 377 T1_Token tokens, 378 FT_UInt max_tokens, 379 FT_Int* pnum_tokens ); 380 381 FT_Error 382 (*load_field)( PS_Parser parser, 383 const T1_Field field, 384 void** objects, 385 FT_UInt max_objects, 386 FT_ULong* pflags ); 387 388 FT_Error 389 (*load_field_table)( PS_Parser parser, 390 const T1_Field field, 391 void** objects, 392 FT_UInt max_objects, 393 FT_ULong* pflags ); 394 395 } PS_Parser_FuncsRec; 396 397 398 /*************************************************************************/ 399 /* */ 400 /* <Struct> */ 401 /* PS_ParserRec */ 402 /* */ 403 /* <Description> */ 404 /* A PS_Parser is an object used to parse a Type 1 font very quickly. */ 405 /* */ 406 /* <Fields> */ 407 /* cursor :: The current position in the text. */ 408 /* */ 409 /* base :: Start of the processed text. */ 410 /* */ 411 /* limit :: End of the processed text. */ 412 /* */ 413 /* error :: The last error returned. */ 414 /* */ 415 /* memory :: The object used for memory operations (alloc/realloc). */ 416 /* */ 417 /* funcs :: A table of functions for the parser. */ 418 /* */ 419 typedef struct PS_ParserRec_ 420 { 421 FT_Byte* cursor; 422 FT_Byte* base; 423 FT_Byte* limit; 424 FT_Error error; 425 FT_Memory memory; 426 427 PS_Parser_FuncsRec funcs; 428 429 } PS_ParserRec; 430 431 432 /*************************************************************************/ 433 /*************************************************************************/ 434 /***** *****/ 435 /***** T1 BUILDER *****/ 436 /***** *****/ 437 /*************************************************************************/ 438 /*************************************************************************/ 439 440 441 typedef struct T1_BuilderRec_* T1_Builder; 442 443 444 typedef FT_Error 445 (*T1_Builder_Check_Points_Func)( T1_Builder builder, 446 FT_Int count ); 447 448 typedef void 449 (*T1_Builder_Add_Point_Func)( T1_Builder builder, 450 FT_Pos x, 451 FT_Pos y, 452 FT_Byte flag ); 453 454 typedef FT_Error 455 (*T1_Builder_Add_Point1_Func)( T1_Builder builder, 456 FT_Pos x, 457 FT_Pos y ); 458 459 typedef FT_Error 460 (*T1_Builder_Add_Contour_Func)( T1_Builder builder ); 461 462 typedef FT_Error 463 (*T1_Builder_Start_Point_Func)( T1_Builder builder, 464 FT_Pos x, 465 FT_Pos y ); 466 467 typedef void 468 (*T1_Builder_Close_Contour_Func)( T1_Builder builder ); 469 470 471 typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs; 472 473 typedef struct T1_Builder_FuncsRec_ 474 { 475 void 476 (*init)( T1_Builder builder, 477 FT_Face face, 478 FT_Size size, 479 FT_GlyphSlot slot, 480 FT_Bool hinting ); 481 482 void 483 (*done)( T1_Builder builder ); 484 485 T1_Builder_Check_Points_Func check_points; 486 T1_Builder_Add_Point_Func add_point; 487 T1_Builder_Add_Point1_Func add_point1; 488 T1_Builder_Add_Contour_Func add_contour; 489 T1_Builder_Start_Point_Func start_point; 490 T1_Builder_Close_Contour_Func close_contour; 491 492 } T1_Builder_FuncsRec; 493 494 495 /* an enumeration type to handle charstring parsing states */ 496 typedef enum T1_ParseState_ 497 { 498 T1_Parse_Start, 499 T1_Parse_Have_Width, 500 T1_Parse_Have_Moveto, 501 T1_Parse_Have_Path 502 503 } T1_ParseState; 504 505 506 /*************************************************************************/ 507 /* */ 508 /* <Structure> */ 509 /* T1_BuilderRec */ 510 /* */ 511 /* <Description> */ 512 /* A structure used during glyph loading to store its outline. */ 513 /* */ 514 /* <Fields> */ 515 /* memory :: The current memory object. */ 516 /* */ 517 /* face :: The current face object. */ 518 /* */ 519 /* glyph :: The current glyph slot. */ 520 /* */ 521 /* loader :: XXX */ 522 /* */ 523 /* base :: The base glyph outline. */ 524 /* */ 525 /* current :: The current glyph outline. */ 526 /* */ 527 /* max_points :: maximum points in builder outline */ 528 /* */ 529 /* max_contours :: Maximal number of contours in builder outline. */ 530 /* */ 531 /* last :: The last point position. */ 532 /* */ 533 /* scale_x :: The horizontal scaling value (FUnits to */ 534 /* sub-pixels). */ 535 /* */ 536 /* scale_y :: The vertical scaling value (FUnits to sub-pixels). */ 537 /* */ 538 /* pos_x :: The horizontal translation (if composite glyph). */ 539 /* */ 540 /* pos_y :: The vertical translation (if composite glyph). */ 541 /* */ 542 /* left_bearing :: The left side bearing point. */ 543 /* */ 544 /* advance :: The horizontal advance vector. */ 545 /* */ 546 /* bbox :: Unused. */ 547 /* */ 548 /* parse_state :: An enumeration which controls the charstring */ 549 /* parsing state. */ 550 /* */ 551 /* load_points :: If this flag is not set, no points are loaded. */ 552 /* */ 553 /* no_recurse :: Set but not used. */ 554 /* */ 555 /* metrics_only :: A boolean indicating that we only want to compute */ 556 /* the metrics of a given glyph, not load all of its */ 557 /* points. */ 558 /* */ 559 /* funcs :: An array of function pointers for the builder. */ 560 /* */ 561 typedef struct T1_BuilderRec_ 562 { 563 FT_Memory memory; 564 FT_Face face; 565 FT_GlyphSlot glyph; 566 FT_GlyphLoader loader; 567 FT_Outline* base; 568 FT_Outline* current; 569 570 FT_Vector last; 571 572 FT_Fixed scale_x; 573 FT_Fixed scale_y; 574 575 FT_Pos pos_x; 576 FT_Pos pos_y; 577 578 FT_Vector left_bearing; 579 FT_Vector advance; 580 581 FT_BBox bbox; /* bounding box */ 582 T1_ParseState parse_state; 583 FT_Bool load_points; 584 FT_Bool no_recurse; 585 FT_Bool shift; 586 587 FT_Bool metrics_only; 588 589 void* hints_funcs; /* hinter-specific */ 590 void* hints_globals; /* hinter-specific */ 591 592 T1_Builder_FuncsRec funcs; 593 594 } T1_BuilderRec; 595 596 597 /*************************************************************************/ 598 /*************************************************************************/ 599 /***** *****/ 600 /***** T1 DECODER *****/ 601 /***** *****/ 602 /*************************************************************************/ 603 /*************************************************************************/ 604 605#if 0 606 607 /*************************************************************************/ 608 /* */ 609 /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ 610 /* calls during glyph loading. */ 611 /* */ 612#define T1_MAX_SUBRS_CALLS 8 613 614 615 /*************************************************************************/ 616 /* */ 617 /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ 618 /* minimum of 16 is required. */ 619 /* */ 620#define T1_MAX_CHARSTRINGS_OPERANDS 32 621 622#endif /* 0 */ 623 624 625 typedef struct T1_Decoder_ZoneRec_ 626 { 627 FT_Byte* cursor; 628 FT_Byte* base; 629 FT_Byte* limit; 630 631 } T1_Decoder_ZoneRec, *T1_Decoder_Zone; 632 633 634 typedef struct T1_DecoderRec_* T1_Decoder; 635 typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs; 636 637 638 typedef FT_Error 639 (*T1_Decoder_Callback)( T1_Decoder decoder, 640 FT_UInt glyph_index ); 641 642 643 typedef struct T1_Decoder_FuncsRec_ 644 { 645 FT_Error 646 (*init)( T1_Decoder decoder, 647 FT_Face face, 648 FT_Size size, 649 FT_GlyphSlot slot, 650 FT_Byte** glyph_names, 651 PS_Blend blend, 652 FT_Bool hinting, 653 FT_Render_Mode hint_mode, 654 T1_Decoder_Callback callback ); 655 656 void 657 (*done)( T1_Decoder decoder ); 658 659 FT_Error 660 (*parse_charstrings)( T1_Decoder decoder, 661 FT_Byte* base, 662 FT_UInt len ); 663 664 } T1_Decoder_FuncsRec; 665 666 667 typedef struct T1_DecoderRec_ 668 { 669 T1_BuilderRec builder; 670 671 FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS]; 672 FT_Long* top; 673 674 T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1]; 675 T1_Decoder_Zone zone; 676 677 FT_Service_PsCMaps psnames; /* for seac */ 678 FT_UInt num_glyphs; 679 FT_Byte** glyph_names; 680 681 FT_Int lenIV; /* internal for sub routine calls */ 682 FT_UInt num_subrs; 683 FT_Byte** subrs; 684 FT_PtrDist* subrs_len; /* array of subrs length (optional) */ 685 686 FT_Matrix font_matrix; 687 FT_Vector font_offset; 688 689 FT_Int flex_state; 690 FT_Int num_flex_vectors; 691 FT_Vector flex_vectors[7]; 692 693 PS_Blend blend; /* for multiple master support */ 694 695 FT_Render_Mode hint_mode; 696 697 T1_Decoder_Callback parse_callback; 698 T1_Decoder_FuncsRec funcs; 699 700 FT_Int* buildchar; 701 FT_UInt len_buildchar; 702 703 } T1_DecoderRec; 704 705 706 /*************************************************************************/ 707 /*************************************************************************/ 708 /***** *****/ 709 /***** AFM PARSER *****/ 710 /***** *****/ 711 /*************************************************************************/ 712 /*************************************************************************/ 713 714 typedef struct AFM_ParserRec_* AFM_Parser; 715 716 typedef struct AFM_Parser_FuncsRec_ 717 { 718 FT_Error 719 (*init)( AFM_Parser parser, 720 FT_Memory memory, 721 FT_Byte* base, 722 FT_Byte* limit ); 723 724 void 725 (*done)( AFM_Parser parser ); 726 727 FT_Error 728 (*parse)( AFM_Parser parser ); 729 730 } AFM_Parser_FuncsRec; 731 732 733 typedef struct AFM_StreamRec_* AFM_Stream; 734 735 736 /*************************************************************************/ 737 /* */ 738 /* <Struct> */ 739 /* AFM_ParserRec */ 740 /* */ 741 /* <Description> */ 742 /* An AFM_Parser is a parser for the AFM files. */ 743 /* */ 744 /* <Fields> */ 745 /* memory :: The object used for memory operations (alloc and */ 746 /* realloc). */ 747 /* */ 748 /* stream :: This is an opaque object. */ 749 /* */ 750 /* FontInfo :: The result will be stored here. */ 751 /* */ 752 /* get_index :: A user provided function to get a glyph index by its */ 753 /* name. */ 754 /* */ 755 typedef struct AFM_ParserRec_ 756 { 757 FT_Memory memory; 758 AFM_Stream stream; 759 760 AFM_FontInfo FontInfo; 761 762 FT_Int 763 (*get_index)( const char* name, 764 FT_UInt len, 765 void* user_data ); 766 767 void* user_data; 768 769 } AFM_ParserRec; 770 771 772 /*************************************************************************/ 773 /*************************************************************************/ 774 /***** *****/ 775 /***** TYPE1 CHARMAPS *****/ 776 /***** *****/ 777 /*************************************************************************/ 778 /*************************************************************************/ 779 780 typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes; 781 782 typedef struct T1_CMap_ClassesRec_ 783 { 784 FT_CMap_Class standard; 785 FT_CMap_Class expert; 786 FT_CMap_Class custom; 787 FT_CMap_Class unicode; 788 789 } T1_CMap_ClassesRec; 790 791 792 /*************************************************************************/ 793 /*************************************************************************/ 794 /***** *****/ 795 /***** PSAux Module Interface *****/ 796 /***** *****/ 797 /*************************************************************************/ 798 /*************************************************************************/ 799 800 typedef struct PSAux_ServiceRec_ 801 { 802 /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */ 803 const PS_Table_FuncsRec* ps_table_funcs; 804 const PS_Parser_FuncsRec* ps_parser_funcs; 805 const T1_Builder_FuncsRec* t1_builder_funcs; 806 const T1_Decoder_FuncsRec* t1_decoder_funcs; 807 808 void 809 (*t1_decrypt)( FT_Byte* buffer, 810 FT_Offset length, 811 FT_UShort seed ); 812 813 T1_CMap_Classes t1_cmap_classes; 814 815 /* fields after this comment line were added after version 2.1.10 */ 816 const AFM_Parser_FuncsRec* afm_parser_funcs; 817 818 } PSAux_ServiceRec, *PSAux_Service; 819 820 /* backwards-compatible type definition */ 821 typedef PSAux_ServiceRec PSAux_Interface; 822 823 824 /*************************************************************************/ 825 /*************************************************************************/ 826 /***** *****/ 827 /***** Some convenience functions *****/ 828 /***** *****/ 829 /*************************************************************************/ 830 /*************************************************************************/ 831 832#define IS_PS_NEWLINE( ch ) \ 833 ( (ch) == '\r' || \ 834 (ch) == '\n' ) 835 836#define IS_PS_SPACE( ch ) \ 837 ( (ch) == ' ' || \ 838 IS_PS_NEWLINE( ch ) || \ 839 (ch) == '\t' || \ 840 (ch) == '\f' || \ 841 (ch) == '\0' ) 842 843#define IS_PS_SPECIAL( ch ) \ 844 ( (ch) == '/' || \ 845 (ch) == '(' || (ch) == ')' || \ 846 (ch) == '<' || (ch) == '>' || \ 847 (ch) == '[' || (ch) == ']' || \ 848 (ch) == '{' || (ch) == '}' || \ 849 (ch) == '%' ) 850 851#define IS_PS_DELIM( ch ) \ 852 ( IS_PS_SPACE( ch ) || \ 853 IS_PS_SPECIAL( ch ) ) 854 855#define IS_PS_DIGIT( ch ) \ 856 ( (ch) >= '0' && (ch) <= '9' ) 857 858#define IS_PS_XDIGIT( ch ) \ 859 ( IS_PS_DIGIT( ch ) || \ 860 ( (ch) >= 'A' && (ch) <= 'F' ) || \ 861 ( (ch) >= 'a' && (ch) <= 'f' ) ) 862 863#define IS_PS_BASE85( ch ) \ 864 ( (ch) >= '!' && (ch) <= 'u' ) 865 866#define IS_PS_TOKEN( cur, limit, token ) \ 867 ( (char)(cur)[0] == (token)[0] && \ 868 ( (cur) + sizeof ( (token) ) == (limit) || \ 869 ( (cur) + sizeof( (token) ) < (limit) && \ 870 IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \ 871 ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 ) 872 873 874FT_END_HEADER 875 876#endif /* __PSAUX_H__ */ 877 878 879/* END */ 880