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| 1 /***************************************************************************/ | |
| 2 /* */ | |
| 3 /* psaux.h */ | |
| 4 /* */ | |
| 5 /* Auxiliary functions and data structures related to PostScript fonts */ | |
| 6 /* (specification). */ | |
| 7 /* */ | |
| 8 /* Copyright 1996-2004, 2006, 2008, 2009, 2012 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 /* init :: Set to 0xDEADBEEF if `elements' and `lengths' have */ | |
| 105 /* been allocated. */ | |
| 106 /* */ | |
| 107 /* max_elems :: The maximum number of elements in table. */ | |
| 108 /* */ | |
| 109 /* num_elems :: The current number of elements in table. */ | |
| 110 /* */ | |
| 111 /* elements :: A table of element addresses within the block. */ | |
| 112 /* */ | |
| 113 /* lengths :: A table of element sizes within the block. */ | |
| 114 /* */ | |
| 115 /* memory :: The object used for memory operations */ | |
| 116 /* (alloc/realloc). */ | |
| 117 /* */ | |
| 118 /* funcs :: A table of method pointers for this object. */ | |
| 119 /* */ | |
| 120 typedef struct PS_TableRec_ | |
| 121 { | |
| 122 FT_Byte* block; /* current memory block */ | |
| 123 FT_Offset cursor; /* current cursor in memory block */ | |
| 124 FT_Offset capacity; /* current size of memory block */ | |
| 125 FT_Long init; | |
| 126 | |
| 127 FT_Int max_elems; | |
| 128 FT_Int num_elems; | |
| 129 FT_Byte** elements; /* addresses of table elements */ | |
| 130 FT_PtrDist* lengths; /* lengths of table elements */ | |
| 131 | |
| 132 FT_Memory memory; | |
| 133 PS_Table_FuncsRec funcs; | |
| 134 | |
| 135 } PS_TableRec; | |
| 136 | |
| 137 | |
| 138 /*************************************************************************/ | |
| 139 /*************************************************************************/ | |
| 140 /***** *****/ | |
| 141 /***** T1 FIELDS & TOKENS *****/ | |
| 142 /***** *****/ | |
| 143 /*************************************************************************/ | |
| 144 /*************************************************************************/ | |
| 145 | |
| 146 typedef struct PS_ParserRec_* PS_Parser; | |
| 147 | |
| 148 typedef struct T1_TokenRec_* T1_Token; | |
| 149 | |
| 150 typedef struct T1_FieldRec_* T1_Field; | |
| 151 | |
| 152 | |
| 153 /* simple enumeration type used to identify token types */ | |
| 154 typedef enum T1_TokenType_ | |
| 155 { | |
| 156 T1_TOKEN_TYPE_NONE = 0, | |
| 157 T1_TOKEN_TYPE_ANY, | |
| 158 T1_TOKEN_TYPE_STRING, | |
| 159 T1_TOKEN_TYPE_ARRAY, | |
| 160 T1_TOKEN_TYPE_KEY, /* aka `name' */ | |
| 161 | |
| 162 /* do not remove */ | |
| 163 T1_TOKEN_TYPE_MAX | |
| 164 | |
| 165 } T1_TokenType; | |
| 166 | |
| 167 | |
| 168 /* a simple structure used to identify tokens */ | |
| 169 typedef struct T1_TokenRec_ | |
| 170 { | |
| 171 FT_Byte* start; /* first character of token in input stream */ | |
| 172 FT_Byte* limit; /* first character after the token */ | |
| 173 T1_TokenType type; /* type of token */ | |
| 174 | |
| 175 } T1_TokenRec; | |
| 176 | |
| 177 | |
| 178 /* enumeration type used to identify object fields */ | |
| 179 typedef enum T1_FieldType_ | |
| 180 { | |
| 181 T1_FIELD_TYPE_NONE = 0, | |
| 182 T1_FIELD_TYPE_BOOL, | |
| 183 T1_FIELD_TYPE_INTEGER, | |
| 184 T1_FIELD_TYPE_FIXED, | |
| 185 T1_FIELD_TYPE_FIXED_1000, | |
| 186 T1_FIELD_TYPE_STRING, | |
| 187 T1_FIELD_TYPE_KEY, | |
| 188 T1_FIELD_TYPE_BBOX, | |
| 189 T1_FIELD_TYPE_MM_BBOX, | |
| 190 T1_FIELD_TYPE_INTEGER_ARRAY, | |
| 191 T1_FIELD_TYPE_FIXED_ARRAY, | |
| 192 T1_FIELD_TYPE_CALLBACK, | |
| 193 | |
| 194 /* do not remove */ | |
| 195 T1_FIELD_TYPE_MAX | |
| 196 | |
| 197 } T1_FieldType; | |
| 198 | |
| 199 | |
| 200 typedef enum T1_FieldLocation_ | |
| 201 { | |
| 202 T1_FIELD_LOCATION_CID_INFO, | |
| 203 T1_FIELD_LOCATION_FONT_DICT, | |
| 204 T1_FIELD_LOCATION_FONT_EXTRA, | |
| 205 T1_FIELD_LOCATION_FONT_INFO, | |
| 206 T1_FIELD_LOCATION_PRIVATE, | |
| 207 T1_FIELD_LOCATION_BBOX, | |
| 208 T1_FIELD_LOCATION_LOADER, | |
| 209 T1_FIELD_LOCATION_FACE, | |
| 210 T1_FIELD_LOCATION_BLEND, | |
| 211 | |
| 212 /* do not remove */ | |
| 213 T1_FIELD_LOCATION_MAX | |
| 214 | |
| 215 } T1_FieldLocation; | |
| 216 | |
| 217 | |
| 218 typedef void | |
| 219 (*T1_Field_ParseFunc)( FT_Face face, | |
| 220 FT_Pointer parser ); | |
| 221 | |
| 222 | |
| 223 /* structure type used to model object fields */ | |
| 224 typedef struct T1_FieldRec_ | |
| 225 { | |
| 226 const char* ident; /* field identifier */ | |
| 227 T1_FieldLocation location; | |
| 228 T1_FieldType type; /* type of field */ | |
| 229 T1_Field_ParseFunc reader; | |
| 230 FT_UInt offset; /* offset of field in object */ | |
| 231 FT_Byte size; /* size of field in bytes */ | |
| 232 FT_UInt array_max; /* maximum number of elements for */ | |
| 233 /* array */ | |
| 234 FT_UInt count_offset; /* offset of element count for */ | |
| 235 /* arrays; must not be zero if in */ | |
| 236 /* use -- in other words, a */ | |
| 237 /* `num_FOO' element must not */ | |
| 238 /* start the used structure if we */ | |
| 239 /* parse a `FOO' array */ | |
| 240 FT_UInt dict; /* where we expect it */ | |
| 241 } T1_FieldRec; | |
| 242 | |
| 243 #define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */ | |
| 244 #define T1_FIELD_DICT_PRIVATE ( 1 << 1 ) | |
| 245 | |
| 246 | |
| 247 | |
| 248 #define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \ | |
| 249 { \ | |
| 250 _ident, T1CODE, _type, \ | |
| 251 0, \ | |
| 252 FT_FIELD_OFFSET( _fname ), \ | |
| 253 FT_FIELD_SIZE( _fname ), \ | |
| 254 0, 0, \ | |
| 255 _dict \ | |
| 256 }, | |
| 257 | |
| 258 #define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \ | |
| 259 { \ | |
| 260 _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \ | |
| 261 (T1_Field_ParseFunc)_reader, \ | |
| 262 0, 0, \ | |
| 263 0, 0, \ | |
| 264 _dict \ | |
| 265 }, | |
| 266 | |
| 267 #define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \ | |
| 268 { \ | |
| 269 _ident, T1CODE, _type, \ | |
| 270 0, \ | |
| 271 FT_FIELD_OFFSET( _fname ), \ | |
| 272 FT_FIELD_SIZE_DELTA( _fname ), \ | |
| 273 _max, \ | |
| 274 FT_FIELD_OFFSET( num_ ## _fname ), \ | |
| 275 _dict \ | |
| 276 }, | |
| 277 | |
| 278 #define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \ | |
| 279 { \ | |
| 280 _ident, T1CODE, _type, \ | |
| 281 0, \ | |
| 282 FT_FIELD_OFFSET( _fname ), \ | |
| 283 FT_FIELD_SIZE_DELTA( _fname ), \ | |
| 284 _max, 0, \ | |
| 285 _dict \ | |
| 286 }, | |
| 287 | |
| 288 | |
| 289 #define T1_FIELD_BOOL( _ident, _fname, _dict ) \ | |
| 290 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict ) | |
| 291 | |
| 292 #define T1_FIELD_NUM( _ident, _fname, _dict ) \ | |
| 293 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict ) | |
| 294 | |
| 295 #define T1_FIELD_FIXED( _ident, _fname, _dict ) \ | |
| 296 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict ) | |
| 297 | |
| 298 #define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \ | |
| 299 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \ | |
| 300 _dict ) | |
| 301 | |
| 302 #define T1_FIELD_STRING( _ident, _fname, _dict ) \ | |
| 303 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict ) | |
| 304 | |
| 305 #define T1_FIELD_KEY( _ident, _fname, _dict ) \ | |
| 306 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict ) | |
| 307 | |
| 308 #define T1_FIELD_BBOX( _ident, _fname, _dict ) \ | |
| 309 T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict ) | |
| 310 | |
| 311 | |
| 312 #define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \ | |
| 313 T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ | |
| 314 _fname, _fmax, _dict ) | |
| 315 | |
| 316 #define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \ | |
| 317 T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ | |
| 318 _fname, _fmax, _dict ) | |
| 319 | |
| 320 #define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \ | |
| 321 T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ | |
| 322 _fname, _fmax, _dict ) | |
| 323 | |
| 324 #define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \ | |
| 325 T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ | |
| 326 _fname, _fmax, _dict ) | |
| 327 | |
| 328 #define T1_FIELD_CALLBACK( _ident, _name, _dict ) \ | |
| 329 T1_NEW_CALLBACK_FIELD( _ident, _name, _dict ) | |
| 330 | |
| 331 | |
| 332 /*************************************************************************/ | |
| 333 /*************************************************************************/ | |
| 334 /***** *****/ | |
| 335 /***** T1 PARSER *****/ | |
| 336 /***** *****/ | |
| 337 /*************************************************************************/ | |
| 338 /*************************************************************************/ | |
| 339 | |
| 340 typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs; | |
| 341 | |
| 342 typedef struct PS_Parser_FuncsRec_ | |
| 343 { | |
| 344 void | |
| 345 (*init)( PS_Parser parser, | |
| 346 FT_Byte* base, | |
| 347 FT_Byte* limit, | |
| 348 FT_Memory memory ); | |
| 349 | |
| 350 void | |
| 351 (*done)( PS_Parser parser ); | |
| 352 | |
| 353 void | |
| 354 (*skip_spaces)( PS_Parser parser ); | |
| 355 void | |
| 356 (*skip_PS_token)( PS_Parser parser ); | |
| 357 | |
| 358 FT_Long | |
| 359 (*to_int)( PS_Parser parser ); | |
| 360 FT_Fixed | |
| 361 (*to_fixed)( PS_Parser parser, | |
| 362 FT_Int power_ten ); | |
| 363 | |
| 364 FT_Error | |
| 365 (*to_bytes)( PS_Parser parser, | |
| 366 FT_Byte* bytes, | |
| 367 FT_Offset max_bytes, | |
| 368 FT_Long* pnum_bytes, | |
| 369 FT_Bool delimiters ); | |
| 370 | |
| 371 FT_Int | |
| 372 (*to_coord_array)( PS_Parser parser, | |
| 373 FT_Int max_coords, | |
| 374 FT_Short* coords ); | |
| 375 FT_Int | |
| 376 (*to_fixed_array)( PS_Parser parser, | |
| 377 FT_Int max_values, | |
| 378 FT_Fixed* values, | |
| 379 FT_Int power_ten ); | |
| 380 | |
| 381 void | |
| 382 (*to_token)( PS_Parser parser, | |
| 383 T1_Token token ); | |
| 384 void | |
| 385 (*to_token_array)( PS_Parser parser, | |
| 386 T1_Token tokens, | |
| 387 FT_UInt max_tokens, | |
| 388 FT_Int* pnum_tokens ); | |
| 389 | |
| 390 FT_Error | |
| 391 (*load_field)( PS_Parser parser, | |
| 392 const T1_Field field, | |
| 393 void** objects, | |
| 394 FT_UInt max_objects, | |
| 395 FT_ULong* pflags ); | |
| 396 | |
| 397 FT_Error | |
| 398 (*load_field_table)( PS_Parser parser, | |
| 399 const T1_Field field, | |
| 400 void** objects, | |
| 401 FT_UInt max_objects, | |
| 402 FT_ULong* pflags ); | |
| 403 | |
| 404 } PS_Parser_FuncsRec; | |
| 405 | |
| 406 | |
| 407 /*************************************************************************/ | |
| 408 /* */ | |
| 409 /* <Struct> */ | |
| 410 /* PS_ParserRec */ | |
| 411 /* */ | |
| 412 /* <Description> */ | |
| 413 /* A PS_Parser is an object used to parse a Type 1 font very quickly. */ | |
| 414 /* */ | |
| 415 /* <Fields> */ | |
| 416 /* cursor :: The current position in the text. */ | |
| 417 /* */ | |
| 418 /* base :: Start of the processed text. */ | |
| 419 /* */ | |
| 420 /* limit :: End of the processed text. */ | |
| 421 /* */ | |
| 422 /* error :: The last error returned. */ | |
| 423 /* */ | |
| 424 /* memory :: The object used for memory operations (alloc/realloc). */ | |
| 425 /* */ | |
| 426 /* funcs :: A table of functions for the parser. */ | |
| 427 /* */ | |
| 428 typedef struct PS_ParserRec_ | |
| 429 { | |
| 430 FT_Byte* cursor; | |
| 431 FT_Byte* base; | |
| 432 FT_Byte* limit; | |
| 433 FT_Error error; | |
| 434 FT_Memory memory; | |
| 435 | |
| 436 PS_Parser_FuncsRec funcs; | |
| 437 | |
| 438 } PS_ParserRec; | |
| 439 | |
| 440 | |
| 441 /*************************************************************************/ | |
| 442 /*************************************************************************/ | |
| 443 /***** *****/ | |
| 444 /***** T1 BUILDER *****/ | |
| 445 /***** *****/ | |
| 446 /*************************************************************************/ | |
| 447 /*************************************************************************/ | |
| 448 | |
| 449 | |
| 450 typedef struct T1_BuilderRec_* T1_Builder; | |
| 451 | |
| 452 | |
| 453 typedef FT_Error | |
| 454 (*T1_Builder_Check_Points_Func)( T1_Builder builder, | |
| 455 FT_Int count ); | |
| 456 | |
| 457 typedef void | |
| 458 (*T1_Builder_Add_Point_Func)( T1_Builder builder, | |
| 459 FT_Pos x, | |
| 460 FT_Pos y, | |
| 461 FT_Byte flag ); | |
| 462 | |
| 463 typedef FT_Error | |
| 464 (*T1_Builder_Add_Point1_Func)( T1_Builder builder, | |
| 465 FT_Pos x, | |
| 466 FT_Pos y ); | |
| 467 | |
| 468 typedef FT_Error | |
| 469 (*T1_Builder_Add_Contour_Func)( T1_Builder builder ); | |
| 470 | |
| 471 typedef FT_Error | |
| 472 (*T1_Builder_Start_Point_Func)( T1_Builder builder, | |
| 473 FT_Pos x, | |
| 474 FT_Pos y ); | |
| 475 | |
| 476 typedef void | |
| 477 (*T1_Builder_Close_Contour_Func)( T1_Builder builder ); | |
| 478 | |
| 479 | |
| 480 typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs; | |
| 481 | |
| 482 typedef struct T1_Builder_FuncsRec_ | |
| 483 { | |
| 484 void | |
| 485 (*init)( T1_Builder builder, | |
| 486 FT_Face face, | |
| 487 FT_Size size, | |
| 488 FT_GlyphSlot slot, | |
| 489 FT_Bool hinting ); | |
| 490 | |
| 491 void | |
| 492 (*done)( T1_Builder builder ); | |
| 493 | |
| 494 T1_Builder_Check_Points_Func check_points; | |
| 495 T1_Builder_Add_Point_Func add_point; | |
| 496 T1_Builder_Add_Point1_Func add_point1; | |
| 497 T1_Builder_Add_Contour_Func add_contour; | |
| 498 T1_Builder_Start_Point_Func start_point; | |
| 499 T1_Builder_Close_Contour_Func close_contour; | |
| 500 | |
| 501 } T1_Builder_FuncsRec; | |
| 502 | |
| 503 | |
| 504 /* an enumeration type to handle charstring parsing states */ | |
| 505 typedef enum T1_ParseState_ | |
| 506 { | |
| 507 T1_Parse_Start, | |
| 508 T1_Parse_Have_Width, | |
| 509 T1_Parse_Have_Moveto, | |
| 510 T1_Parse_Have_Path | |
| 511 | |
| 512 } T1_ParseState; | |
| 513 | |
| 514 | |
| 515 /*************************************************************************/ | |
| 516 /* */ | |
| 517 /* <Structure> */ | |
| 518 /* T1_BuilderRec */ | |
| 519 /* */ | |
| 520 /* <Description> */ | |
| 521 /* A structure used during glyph loading to store its outline. */ | |
| 522 /* */ | |
| 523 /* <Fields> */ | |
| 524 /* memory :: The current memory object. */ | |
| 525 /* */ | |
| 526 /* face :: The current face object. */ | |
| 527 /* */ | |
| 528 /* glyph :: The current glyph slot. */ | |
| 529 /* */ | |
| 530 /* loader :: XXX */ | |
| 531 /* */ | |
| 532 /* base :: The base glyph outline. */ | |
| 533 /* */ | |
| 534 /* current :: The current glyph outline. */ | |
| 535 /* */ | |
| 536 /* max_points :: maximum points in builder outline */ | |
| 537 /* */ | |
| 538 /* max_contours :: Maximum number of contours in builder outline. */ | |
| 539 /* */ | |
| 540 /* pos_x :: The horizontal translation (if composite glyph). */ | |
| 541 /* */ | |
| 542 /* pos_y :: The vertical translation (if composite glyph). */ | |
| 543 /* */ | |
| 544 /* left_bearing :: The left side bearing point. */ | |
| 545 /* */ | |
| 546 /* advance :: The horizontal advance vector. */ | |
| 547 /* */ | |
| 548 /* bbox :: Unused. */ | |
| 549 /* */ | |
| 550 /* parse_state :: An enumeration which controls the charstring */ | |
| 551 /* parsing state. */ | |
| 552 /* */ | |
| 553 /* load_points :: If this flag is not set, no points are loaded. */ | |
| 554 /* */ | |
| 555 /* no_recurse :: Set but not used. */ | |
| 556 /* */ | |
| 557 /* metrics_only :: A boolean indicating that we only want to compute */ | |
| 558 /* the metrics of a given glyph, not load all of its */ | |
| 559 /* points. */ | |
| 560 /* */ | |
| 561 /* funcs :: An array of function pointers for the builder. */ | |
| 562 /* */ | |
| 563 typedef struct T1_BuilderRec_ | |
| 564 { | |
| 565 FT_Memory memory; | |
| 566 FT_Face face; | |
| 567 FT_GlyphSlot glyph; | |
| 568 FT_GlyphLoader loader; | |
| 569 FT_Outline* base; | |
| 570 FT_Outline* current; | |
| 571 | |
| 572 FT_Pos pos_x; | |
| 573 FT_Pos pos_y; | |
| 574 | |
| 575 FT_Vector left_bearing; | |
| 576 FT_Vector advance; | |
| 577 | |
| 578 FT_BBox bbox; /* bounding box */ | |
| 579 T1_ParseState parse_state; | |
| 580 FT_Bool load_points; | |
| 581 FT_Bool no_recurse; | |
| 582 | |
| 583 FT_Bool metrics_only; | |
| 584 | |
| 585 void* hints_funcs; /* hinter-specific */ | |
| 586 void* hints_globals; /* hinter-specific */ | |
| 587 | |
| 588 T1_Builder_FuncsRec funcs; | |
| 589 | |
| 590 } T1_BuilderRec; | |
| 591 | |
| 592 | |
| 593 /*************************************************************************/ | |
| 594 /*************************************************************************/ | |
| 595 /***** *****/ | |
| 596 /***** T1 DECODER *****/ | |
| 597 /***** *****/ | |
| 598 /*************************************************************************/ | |
| 599 /*************************************************************************/ | |
| 600 | |
| 601 #if 0 | |
| 602 | |
| 603 /*************************************************************************/ | |
| 604 /* */ | |
| 605 /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ | |
| 606 /* calls during glyph loading. */ | |
| 607 /* */ | |
| 608 #define T1_MAX_SUBRS_CALLS 8 | |
| 609 | |
| 610 | |
| 611 /*************************************************************************/ | |
| 612 /* */ | |
| 613 /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ | |
| 614 /* minimum of 16 is required. */ | |
| 615 /* */ | |
| 616 #define T1_MAX_CHARSTRINGS_OPERANDS 32 | |
| 617 | |
| 618 #endif /* 0 */ | |
| 619 | |
| 620 | |
| 621 typedef struct T1_Decoder_ZoneRec_ | |
| 622 { | |
| 623 FT_Byte* cursor; | |
| 624 FT_Byte* base; | |
| 625 FT_Byte* limit; | |
| 626 | |
| 627 } T1_Decoder_ZoneRec, *T1_Decoder_Zone; | |
| 628 | |
| 629 | |
| 630 typedef struct T1_DecoderRec_* T1_Decoder; | |
| 631 typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs; | |
| 632 | |
| 633 | |
| 634 typedef FT_Error | |
| 635 (*T1_Decoder_Callback)( T1_Decoder decoder, | |
| 636 FT_UInt glyph_index ); | |
| 637 | |
| 638 | |
| 639 typedef struct T1_Decoder_FuncsRec_ | |
| 640 { | |
| 641 FT_Error | |
| 642 (*init)( T1_Decoder decoder, | |
| 643 FT_Face face, | |
| 644 FT_Size size, | |
| 645 FT_GlyphSlot slot, | |
| 646 FT_Byte** glyph_names, | |
| 647 PS_Blend blend, | |
| 648 FT_Bool hinting, | |
| 649 FT_Render_Mode hint_mode, | |
| 650 T1_Decoder_Callback callback ); | |
| 651 | |
| 652 void | |
| 653 (*done)( T1_Decoder decoder ); | |
| 654 | |
| 655 FT_Error | |
| 656 (*parse_charstrings)( T1_Decoder decoder, | |
| 657 FT_Byte* base, | |
| 658 FT_UInt len ); | |
| 659 | |
| 660 } T1_Decoder_FuncsRec; | |
| 661 | |
| 662 | |
| 663 typedef struct T1_DecoderRec_ | |
| 664 { | |
| 665 T1_BuilderRec builder; | |
| 666 | |
| 667 FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS]; | |
| 668 FT_Long* top; | |
| 669 | |
| 670 T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1]; | |
| 671 T1_Decoder_Zone zone; | |
| 672 | |
| 673 FT_Service_PsCMaps psnames; /* for seac */ | |
| 674 FT_UInt num_glyphs; | |
| 675 FT_Byte** glyph_names; | |
| 676 | |
| 677 FT_Int lenIV; /* internal for sub routine calls */ | |
| 678 FT_UInt num_subrs; | |
| 679 FT_Byte** subrs; | |
| 680 FT_PtrDist* subrs_len; /* array of subrs length (optional) */ | |
| 681 | |
| 682 FT_Matrix font_matrix; | |
| 683 FT_Vector font_offset; | |
| 684 | |
| 685 FT_Int flex_state; | |
| 686 FT_Int num_flex_vectors; | |
| 687 FT_Vector flex_vectors[7]; | |
| 688 | |
| 689 PS_Blend blend; /* for multiple master support */ | |
| 690 | |
| 691 FT_Render_Mode hint_mode; | |
| 692 | |
| 693 T1_Decoder_Callback parse_callback; | |
| 694 T1_Decoder_FuncsRec funcs; | |
| 695 | |
| 696 FT_Long* buildchar; | |
| 697 FT_UInt len_buildchar; | |
| 698 | |
| 699 FT_Bool seac; | |
| 700 | |
| 701 } T1_DecoderRec; | |
| 702 | |
| 703 | |
| 704 /*************************************************************************/ | |
| 705 /*************************************************************************/ | |
| 706 /***** *****/ | |
| 707 /***** AFM PARSER *****/ | |
| 708 /***** *****/ | |
| 709 /*************************************************************************/ | |
| 710 /*************************************************************************/ | |
| 711 | |
| 712 typedef struct AFM_ParserRec_* AFM_Parser; | |
| 713 | |
| 714 typedef struct AFM_Parser_FuncsRec_ | |
| 715 { | |
| 716 FT_Error | |
| 717 (*init)( AFM_Parser parser, | |
| 718 FT_Memory memory, | |
| 719 FT_Byte* base, | |
| 720 FT_Byte* limit ); | |
| 721 | |
| 722 void | |
| 723 (*done)( AFM_Parser parser ); | |
| 724 | |
| 725 FT_Error | |
| 726 (*parse)( AFM_Parser parser ); | |
| 727 | |
| 728 } AFM_Parser_FuncsRec; | |
| 729 | |
| 730 | |
| 731 typedef struct AFM_StreamRec_* AFM_Stream; | |
| 732 | |
| 733 | |
| 734 /*************************************************************************/ | |
| 735 /* */ | |
| 736 /* <Struct> */ | |
| 737 /* AFM_ParserRec */ | |
| 738 /* */ | |
| 739 /* <Description> */ | |
| 740 /* An AFM_Parser is a parser for the AFM files. */ | |
| 741 /* */ | |
| 742 /* <Fields> */ | |
| 743 /* memory :: The object used for memory operations (alloc and */ | |
| 744 /* realloc). */ | |
| 745 /* */ | |
| 746 /* stream :: This is an opaque object. */ | |
| 747 /* */ | |
| 748 /* FontInfo :: The result will be stored here. */ | |
| 749 /* */ | |
| 750 /* get_index :: A user provided function to get a glyph index by its */ | |
| 751 /* name. */ | |
| 752 /* */ | |
| 753 typedef struct AFM_ParserRec_ | |
| 754 { | |
| 755 FT_Memory memory; | |
| 756 AFM_Stream stream; | |
| 757 | |
| 758 AFM_FontInfo FontInfo; | |
| 759 | |
| 760 FT_Int | |
| 761 (*get_index)( const char* name, | |
| 762 FT_Offset len, | |
| 763 void* user_data ); | |
| 764 | |
| 765 void* user_data; | |
| 766 | |
| 767 } AFM_ParserRec; | |
| 768 | |
| 769 | |
| 770 /*************************************************************************/ | |
| 771 /*************************************************************************/ | |
| 772 /***** *****/ | |
| 773 /***** TYPE1 CHARMAPS *****/ | |
| 774 /***** *****/ | |
| 775 /*************************************************************************/ | |
| 776 /*************************************************************************/ | |
| 777 | |
| 778 typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes; | |
| 779 | |
| 780 typedef struct T1_CMap_ClassesRec_ | |
| 781 { | |
| 782 FT_CMap_Class standard; | |
| 783 FT_CMap_Class expert; | |
| 784 FT_CMap_Class custom; | |
| 785 FT_CMap_Class unicode; | |
| 786 | |
| 787 } T1_CMap_ClassesRec; | |
| 788 | |
| 789 | |
| 790 /*************************************************************************/ | |
| 791 /*************************************************************************/ | |
| 792 /***** *****/ | |
| 793 /***** PSAux Module Interface *****/ | |
| 794 /***** *****/ | |
| 795 /*************************************************************************/ | |
| 796 /*************************************************************************/ | |
| 797 | |
| 798 typedef struct PSAux_ServiceRec_ | |
| 799 { | |
| 800 /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */ | |
| 801 const PS_Table_FuncsRec* ps_table_funcs; | |
| 802 const PS_Parser_FuncsRec* ps_parser_funcs; | |
| 803 const T1_Builder_FuncsRec* t1_builder_funcs; | |
| 804 const T1_Decoder_FuncsRec* t1_decoder_funcs; | |
| 805 | |
| 806 void | |
| 807 (*t1_decrypt)( FT_Byte* buffer, | |
| 808 FT_Offset length, | |
| 809 FT_UShort seed ); | |
| 810 | |
| 811 T1_CMap_Classes t1_cmap_classes; | |
| 812 | |
| 813 /* fields after this comment line were added after version 2.1.10 */ | |
| 814 const AFM_Parser_FuncsRec* afm_parser_funcs; | |
| 815 | |
| 816 } PSAux_ServiceRec, *PSAux_Service; | |
| 817 | |
| 818 /* backwards-compatible type definition */ | |
| 819 typedef PSAux_ServiceRec PSAux_Interface; | |
| 820 | |
| 821 | |
| 822 /*************************************************************************/ | |
| 823 /*************************************************************************/ | |
| 824 /***** *****/ | |
| 825 /***** Some convenience functions *****/ | |
| 826 /***** *****/ | |
| 827 /*************************************************************************/ | |
| 828 /*************************************************************************/ | |
| 829 | |
| 830 #define IS_PS_NEWLINE( ch ) \ | |
| 831 ( (ch) == '\r' || \ | |
| 832 (ch) == '\n' ) | |
| 833 | |
| 834 #define IS_PS_SPACE( ch ) \ | |
| 835 ( (ch) == ' ' || \ | |
| 836 IS_PS_NEWLINE( ch ) || \ | |
| 837 (ch) == '\t' || \ | |
| 838 (ch) == '\f' || \ | |
| 839 (ch) == '\0' ) | |
| 840 | |
| 841 #define IS_PS_SPECIAL( ch ) \ | |
| 842 ( (ch) == '/' || \ | |
| 843 (ch) == '(' || (ch) == ')' || \ | |
| 844 (ch) == '<' || (ch) == '>' || \ | |
| 845 (ch) == '[' || (ch) == ']' || \ | |
| 846 (ch) == '{' || (ch) == '}' || \ | |
| 847 (ch) == '%' ) | |
| 848 | |
| 849 #define IS_PS_DELIM( ch ) \ | |
| 850 ( IS_PS_SPACE( ch ) || \ | |
| 851 IS_PS_SPECIAL( ch ) ) | |
| 852 | |
| 853 #define IS_PS_DIGIT( ch ) \ | |
| 854 ( (ch) >= '0' && (ch) <= '9' ) | |
| 855 | |
| 856 #define IS_PS_XDIGIT( ch ) \ | |
| 857 ( IS_PS_DIGIT( ch ) || \ | |
| 858 ( (ch) >= 'A' && (ch) <= 'F' ) || \ | |
| 859 ( (ch) >= 'a' && (ch) <= 'f' ) ) | |
| 860 | |
| 861 #define IS_PS_BASE85( ch ) \ | |
| 862 ( (ch) >= '!' && (ch) <= 'u' ) | |
| 863 | |
| 864 #define IS_PS_TOKEN( cur, limit, token ) \ | |
| 865 ( (char)(cur)[0] == (token)[0] && \ | |
| 866 ( (cur) + sizeof ( (token) ) == (limit) || \ | |
| 867 ( (cur) + sizeof( (token) ) < (limit) && \ | |
| 868 IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \ | |
| 869 ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 ) | |
| 870 | |
| 871 | |
| 872 FT_END_HEADER | |
| 873 | |
| 874 #endif /* __PSAUX_H__ */ | |
| 875 | |
| 876 | |
| 877 /* END */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1413673003:
Update bundled freetype to 2.6.1 (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master