David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1 | /***************************************************************************/ |
| 2 | /* */ |
| 3 | /* cffload.c */ |
| 4 | /* */ |
| 5 | /* OpenType and CFF data/program tables loader (body) */ |
| 6 | /* */ |
| 7 | /* Copyright 1996-2000 by */ |
| 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| 9 | /* */ |
| 10 | /* This file is part of the FreeType project, and may only be used, */ |
Werner Lemberg | 521a2d7 | 2001-03-20 22:58:56 +0000 | [diff] [blame] | 11 | /* modified, and distributed under the terms of the FreeType project */ |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 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 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 18 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 19 | #include <ft2build.h> |
| 20 | #include FT_INTERNAL_DEBUG_H |
| 21 | #include FT_INTERNAL_OBJECTS_H |
| 22 | #include FT_INTERNAL_STREAM_H |
| 23 | #include FT_INTERNAL_POSTSCRIPT_NAMES_H |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 24 | #include FT_TRUETYPE_TAGS_H |
| 25 | |
David Turner | 8d3a401 | 2001-03-20 11:14:24 +0000 | [diff] [blame] | 26 | #include "cffload.h" |
| 27 | #include "cffparse.h" |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 28 | |
Werner Lemberg | 1f7f0e8 | 2001-06-06 17:30:41 +0000 | [diff] [blame] | 29 | #include "cfferrs.h" |
| 30 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 31 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 32 | /*************************************************************************/ |
| 33 | /* */ |
| 34 | /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ |
| 35 | /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ |
| 36 | /* messages during execution. */ |
| 37 | /* */ |
| 38 | #undef FT_COMPONENT |
Tom Kacvinsky | 8d1f604 | 2001-01-03 00:21:59 +0000 | [diff] [blame] | 39 | #define FT_COMPONENT trace_cffload |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 40 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 41 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 42 | const FT_UShort cff_isoadobe_charset[229] = |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 43 | { |
| 44 | 0, |
| 45 | 1, |
| 46 | 2, |
| 47 | 3, |
| 48 | 4, |
| 49 | 5, |
| 50 | 6, |
| 51 | 7, |
| 52 | 8, |
| 53 | 9, |
| 54 | 10, |
| 55 | 11, |
| 56 | 12, |
| 57 | 13, |
| 58 | 14, |
| 59 | 15, |
| 60 | 16, |
| 61 | 17, |
| 62 | 18, |
| 63 | 19, |
| 64 | 20, |
| 65 | 21, |
| 66 | 22, |
| 67 | 23, |
| 68 | 24, |
| 69 | 25, |
| 70 | 26, |
| 71 | 27, |
| 72 | 28, |
| 73 | 29, |
| 74 | 30, |
| 75 | 31, |
| 76 | 32, |
| 77 | 33, |
| 78 | 34, |
| 79 | 35, |
| 80 | 36, |
| 81 | 37, |
| 82 | 38, |
| 83 | 39, |
| 84 | 40, |
| 85 | 41, |
| 86 | 42, |
| 87 | 43, |
| 88 | 44, |
| 89 | 45, |
| 90 | 46, |
| 91 | 47, |
| 92 | 48, |
| 93 | 49, |
| 94 | 50, |
| 95 | 51, |
| 96 | 52, |
| 97 | 53, |
| 98 | 54, |
| 99 | 55, |
| 100 | 56, |
| 101 | 57, |
| 102 | 58, |
| 103 | 59, |
| 104 | 60, |
| 105 | 61, |
| 106 | 62, |
| 107 | 63, |
| 108 | 64, |
| 109 | 65, |
| 110 | 66, |
| 111 | 67, |
| 112 | 68, |
| 113 | 69, |
| 114 | 70, |
| 115 | 71, |
| 116 | 72, |
| 117 | 73, |
| 118 | 74, |
| 119 | 75, |
| 120 | 76, |
| 121 | 77, |
| 122 | 78, |
| 123 | 79, |
| 124 | 80, |
| 125 | 81, |
| 126 | 82, |
| 127 | 83, |
| 128 | 84, |
| 129 | 85, |
| 130 | 86, |
| 131 | 87, |
| 132 | 88, |
| 133 | 89, |
| 134 | 90, |
| 135 | 91, |
| 136 | 92, |
| 137 | 93, |
| 138 | 94, |
| 139 | 95, |
| 140 | 96, |
| 141 | 97, |
| 142 | 98, |
| 143 | 99, |
| 144 | 100, |
| 145 | 101, |
| 146 | 102, |
| 147 | 103, |
| 148 | 104, |
| 149 | 105, |
| 150 | 106, |
| 151 | 107, |
| 152 | 108, |
| 153 | 109, |
| 154 | 110, |
| 155 | 111, |
| 156 | 112, |
| 157 | 113, |
| 158 | 114, |
| 159 | 115, |
| 160 | 116, |
| 161 | 117, |
| 162 | 118, |
| 163 | 119, |
| 164 | 120, |
| 165 | 121, |
| 166 | 122, |
| 167 | 123, |
| 168 | 124, |
| 169 | 125, |
| 170 | 126, |
| 171 | 127, |
| 172 | 128, |
| 173 | 129, |
| 174 | 130, |
| 175 | 131, |
| 176 | 132, |
| 177 | 133, |
| 178 | 134, |
| 179 | 135, |
| 180 | 136, |
| 181 | 137, |
| 182 | 138, |
| 183 | 139, |
| 184 | 140, |
| 185 | 141, |
| 186 | 142, |
| 187 | 143, |
| 188 | 144, |
| 189 | 145, |
| 190 | 146, |
| 191 | 147, |
| 192 | 148, |
| 193 | 149, |
| 194 | 150, |
| 195 | 151, |
| 196 | 152, |
| 197 | 153, |
| 198 | 154, |
| 199 | 155, |
| 200 | 156, |
| 201 | 157, |
| 202 | 158, |
| 203 | 159, |
| 204 | 160, |
| 205 | 161, |
| 206 | 162, |
| 207 | 163, |
| 208 | 164, |
| 209 | 165, |
| 210 | 166, |
| 211 | 167, |
| 212 | 168, |
| 213 | 169, |
| 214 | 170, |
| 215 | 171, |
| 216 | 172, |
| 217 | 173, |
| 218 | 174, |
| 219 | 175, |
| 220 | 176, |
| 221 | 177, |
| 222 | 178, |
| 223 | 179, |
| 224 | 180, |
| 225 | 181, |
| 226 | 182, |
| 227 | 183, |
| 228 | 184, |
| 229 | 185, |
| 230 | 186, |
| 231 | 187, |
| 232 | 188, |
| 233 | 189, |
| 234 | 190, |
| 235 | 191, |
| 236 | 192, |
| 237 | 193, |
| 238 | 194, |
| 239 | 195, |
| 240 | 196, |
| 241 | 197, |
| 242 | 198, |
| 243 | 199, |
| 244 | 200, |
| 245 | 201, |
| 246 | 202, |
| 247 | 203, |
| 248 | 204, |
| 249 | 205, |
| 250 | 206, |
| 251 | 207, |
| 252 | 208, |
| 253 | 209, |
| 254 | 210, |
| 255 | 211, |
| 256 | 212, |
| 257 | 213, |
| 258 | 214, |
| 259 | 215, |
| 260 | 216, |
| 261 | 217, |
| 262 | 218, |
| 263 | 219, |
| 264 | 220, |
| 265 | 221, |
| 266 | 222, |
| 267 | 223, |
| 268 | 224, |
| 269 | 225, |
| 270 | 226, |
| 271 | 227, |
| 272 | 228 |
| 273 | }; |
| 274 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 275 | const FT_UShort cff_expert_charset[166] = |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 276 | { |
| 277 | 0, |
| 278 | 1, |
| 279 | 229, |
| 280 | 230, |
| 281 | 231, |
| 282 | 232, |
| 283 | 233, |
| 284 | 234, |
| 285 | 235, |
| 286 | 236, |
| 287 | 237, |
| 288 | 238, |
| 289 | 13, |
| 290 | 14, |
| 291 | 15, |
| 292 | 99, |
| 293 | 239, |
| 294 | 240, |
| 295 | 241, |
| 296 | 242, |
| 297 | 243, |
| 298 | 244, |
| 299 | 245, |
| 300 | 246, |
| 301 | 247, |
| 302 | 248, |
| 303 | 27, |
| 304 | 28, |
| 305 | 249, |
| 306 | 250, |
| 307 | 251, |
| 308 | 252, |
| 309 | 253, |
| 310 | 254, |
| 311 | 255, |
| 312 | 256, |
| 313 | 257, |
| 314 | 258, |
| 315 | 259, |
| 316 | 260, |
| 317 | 261, |
| 318 | 262, |
| 319 | 263, |
| 320 | 264, |
| 321 | 265, |
| 322 | 266, |
| 323 | 109, |
| 324 | 110, |
| 325 | 267, |
| 326 | 268, |
| 327 | 269, |
| 328 | 270, |
| 329 | 271, |
| 330 | 272, |
| 331 | 273, |
| 332 | 274, |
| 333 | 275, |
| 334 | 276, |
| 335 | 277, |
| 336 | 278, |
| 337 | 279, |
| 338 | 280, |
| 339 | 281, |
| 340 | 282, |
| 341 | 283, |
| 342 | 284, |
| 343 | 285, |
| 344 | 286, |
| 345 | 287, |
| 346 | 288, |
| 347 | 289, |
| 348 | 290, |
| 349 | 291, |
| 350 | 292, |
| 351 | 293, |
| 352 | 294, |
| 353 | 295, |
| 354 | 296, |
| 355 | 297, |
| 356 | 298, |
| 357 | 299, |
| 358 | 300, |
| 359 | 301, |
| 360 | 302, |
| 361 | 303, |
| 362 | 304, |
| 363 | 305, |
| 364 | 306, |
| 365 | 307, |
| 366 | 308, |
| 367 | 309, |
| 368 | 310, |
| 369 | 311, |
| 370 | 312, |
| 371 | 313, |
| 372 | 314, |
| 373 | 315, |
| 374 | 316, |
| 375 | 317, |
| 376 | 318, |
| 377 | 158, |
| 378 | 155, |
| 379 | 163, |
| 380 | 319, |
| 381 | 320, |
| 382 | 321, |
| 383 | 322, |
| 384 | 323, |
| 385 | 324, |
| 386 | 325, |
| 387 | 326, |
| 388 | 150, |
| 389 | 164, |
| 390 | 169, |
| 391 | 327, |
| 392 | 328, |
| 393 | 329, |
| 394 | 330, |
| 395 | 331, |
| 396 | 332, |
| 397 | 333, |
| 398 | 334, |
| 399 | 335, |
| 400 | 336, |
| 401 | 337, |
| 402 | 338, |
| 403 | 339, |
| 404 | 340, |
| 405 | 341, |
| 406 | 342, |
| 407 | 343, |
| 408 | 344, |
| 409 | 345, |
| 410 | 346, |
| 411 | 347, |
| 412 | 348, |
| 413 | 349, |
| 414 | 350, |
| 415 | 351, |
| 416 | 352, |
| 417 | 353, |
| 418 | 354, |
| 419 | 355, |
| 420 | 356, |
| 421 | 357, |
| 422 | 358, |
| 423 | 359, |
| 424 | 360, |
| 425 | 361, |
| 426 | 362, |
| 427 | 363, |
| 428 | 364, |
| 429 | 365, |
| 430 | 366, |
| 431 | 367, |
| 432 | 368, |
| 433 | 369, |
| 434 | 370, |
| 435 | 371, |
| 436 | 372, |
| 437 | 373, |
| 438 | 374, |
| 439 | 375, |
| 440 | 376, |
| 441 | 377, |
| 442 | 378 |
| 443 | }; |
| 444 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 445 | const FT_UShort cff_expertsubset_charset[87] = |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 446 | { |
| 447 | 0, |
| 448 | 1, |
| 449 | 231, |
| 450 | 232, |
| 451 | 235, |
| 452 | 236, |
| 453 | 237, |
| 454 | 238, |
| 455 | 13, |
| 456 | 14, |
| 457 | 15, |
| 458 | 99, |
| 459 | 239, |
| 460 | 240, |
| 461 | 241, |
| 462 | 242, |
| 463 | 243, |
| 464 | 244, |
| 465 | 245, |
| 466 | 246, |
| 467 | 247, |
| 468 | 248, |
| 469 | 27, |
| 470 | 28, |
| 471 | 249, |
| 472 | 250, |
| 473 | 251, |
| 474 | 253, |
| 475 | 254, |
| 476 | 255, |
| 477 | 256, |
| 478 | 257, |
| 479 | 258, |
| 480 | 259, |
| 481 | 260, |
| 482 | 261, |
| 483 | 262, |
| 484 | 263, |
| 485 | 264, |
| 486 | 265, |
| 487 | 266, |
| 488 | 109, |
| 489 | 110, |
| 490 | 267, |
| 491 | 268, |
| 492 | 269, |
| 493 | 270, |
| 494 | 272, |
| 495 | 300, |
| 496 | 301, |
| 497 | 302, |
| 498 | 305, |
| 499 | 314, |
| 500 | 315, |
| 501 | 158, |
| 502 | 155, |
| 503 | 163, |
| 504 | 320, |
| 505 | 321, |
| 506 | 322, |
| 507 | 323, |
| 508 | 324, |
| 509 | 325, |
| 510 | 326, |
| 511 | 150, |
| 512 | 164, |
| 513 | 169, |
| 514 | 327, |
| 515 | 328, |
| 516 | 329, |
| 517 | 330, |
| 518 | 331, |
| 519 | 332, |
| 520 | 333, |
| 521 | 334, |
| 522 | 335, |
| 523 | 336, |
| 524 | 337, |
| 525 | 338, |
| 526 | 339, |
| 527 | 340, |
| 528 | 341, |
| 529 | 342, |
| 530 | 343, |
| 531 | 344, |
| 532 | 345, |
| 533 | 346 |
| 534 | }; |
| 535 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 536 | const FT_UShort cff_standard_encoding[256] = |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 537 | { |
| 538 | 0, |
| 539 | 0, |
| 540 | 0, |
| 541 | 0, |
| 542 | 0, |
| 543 | 0, |
| 544 | 0, |
| 545 | 0, |
| 546 | 0, |
| 547 | 0, |
| 548 | 0, |
| 549 | 0, |
| 550 | 0, |
| 551 | 0, |
| 552 | 0, |
| 553 | 0, |
| 554 | 0, |
| 555 | 0, |
| 556 | 0, |
| 557 | 0, |
| 558 | 0, |
| 559 | 0, |
| 560 | 0, |
| 561 | 0, |
| 562 | 0, |
| 563 | 0, |
| 564 | 0, |
| 565 | 0, |
| 566 | 0, |
| 567 | 0, |
| 568 | 0, |
| 569 | 0, |
| 570 | 1, |
| 571 | 2, |
| 572 | 3, |
| 573 | 4, |
| 574 | 5, |
| 575 | 6, |
| 576 | 7, |
| 577 | 8, |
| 578 | 9, |
| 579 | 10, |
| 580 | 11, |
| 581 | 12, |
| 582 | 13, |
| 583 | 14, |
| 584 | 15, |
| 585 | 16, |
| 586 | 17, |
| 587 | 18, |
| 588 | 19, |
| 589 | 20, |
| 590 | 21, |
| 591 | 22, |
| 592 | 23, |
| 593 | 24, |
| 594 | 25, |
| 595 | 26, |
| 596 | 27, |
| 597 | 28, |
| 598 | 29, |
| 599 | 30, |
| 600 | 31, |
| 601 | 32, |
| 602 | 33, |
| 603 | 34, |
| 604 | 35, |
| 605 | 36, |
| 606 | 37, |
| 607 | 38, |
| 608 | 39, |
| 609 | 40, |
| 610 | 41, |
| 611 | 42, |
| 612 | 43, |
| 613 | 44, |
| 614 | 45, |
| 615 | 46, |
| 616 | 47, |
| 617 | 48, |
| 618 | 49, |
| 619 | 50, |
| 620 | 51, |
| 621 | 52, |
| 622 | 53, |
| 623 | 54, |
| 624 | 55, |
| 625 | 56, |
| 626 | 57, |
| 627 | 58, |
| 628 | 59, |
| 629 | 60, |
| 630 | 61, |
| 631 | 62, |
| 632 | 63, |
| 633 | 64, |
| 634 | 65, |
| 635 | 66, |
| 636 | 67, |
| 637 | 68, |
| 638 | 69, |
| 639 | 70, |
| 640 | 71, |
| 641 | 72, |
| 642 | 73, |
| 643 | 74, |
| 644 | 75, |
| 645 | 76, |
| 646 | 77, |
| 647 | 78, |
| 648 | 79, |
| 649 | 80, |
| 650 | 81, |
| 651 | 82, |
| 652 | 83, |
| 653 | 84, |
| 654 | 85, |
| 655 | 86, |
| 656 | 87, |
| 657 | 88, |
| 658 | 89, |
| 659 | 90, |
| 660 | 91, |
| 661 | 92, |
| 662 | 93, |
| 663 | 94, |
| 664 | 95, |
| 665 | 0, |
| 666 | 0, |
| 667 | 0, |
| 668 | 0, |
| 669 | 0, |
| 670 | 0, |
| 671 | 0, |
| 672 | 0, |
| 673 | 0, |
| 674 | 0, |
| 675 | 0, |
| 676 | 0, |
| 677 | 0, |
| 678 | 0, |
| 679 | 0, |
| 680 | 0, |
| 681 | 0, |
| 682 | 0, |
| 683 | 0, |
| 684 | 0, |
| 685 | 0, |
| 686 | 0, |
| 687 | 0, |
| 688 | 0, |
| 689 | 0, |
| 690 | 0, |
| 691 | 0, |
| 692 | 0, |
| 693 | 0, |
| 694 | 0, |
| 695 | 0, |
| 696 | 0, |
| 697 | 0, |
| 698 | 0, |
| 699 | 96, |
| 700 | 97, |
| 701 | 98, |
| 702 | 99, |
| 703 | 100, |
| 704 | 101, |
| 705 | 102, |
| 706 | 103, |
| 707 | 104, |
| 708 | 105, |
| 709 | 106, |
| 710 | 107, |
| 711 | 108, |
| 712 | 109, |
| 713 | 110, |
| 714 | 0, |
| 715 | 111, |
| 716 | 112, |
| 717 | 113, |
| 718 | 114, |
| 719 | 0, |
| 720 | 115, |
| 721 | 116, |
| 722 | 117, |
| 723 | 118, |
| 724 | 119, |
| 725 | 120, |
| 726 | 121, |
| 727 | 122, |
| 728 | 0, |
| 729 | 123, |
| 730 | 0, |
| 731 | 124, |
| 732 | 125, |
| 733 | 126, |
| 734 | 127, |
| 735 | 128, |
| 736 | 129, |
| 737 | 130, |
| 738 | 131, |
| 739 | 0, |
| 740 | 132, |
| 741 | 133, |
| 742 | 0, |
| 743 | 134, |
| 744 | 135, |
| 745 | 136, |
| 746 | 137, |
| 747 | 0, |
| 748 | 0, |
| 749 | 0, |
| 750 | 0, |
| 751 | 0, |
| 752 | 0, |
| 753 | 0, |
| 754 | 0, |
| 755 | 0, |
| 756 | 0, |
| 757 | 0, |
| 758 | 0, |
| 759 | 0, |
| 760 | 0, |
| 761 | 0, |
| 762 | 0, |
| 763 | 138, |
| 764 | 0, |
| 765 | 139, |
| 766 | 0, |
| 767 | 0, |
| 768 | 0, |
| 769 | 0, |
| 770 | 140, |
| 771 | 141, |
| 772 | 142, |
| 773 | 143, |
| 774 | 0, |
| 775 | 0, |
| 776 | 0, |
| 777 | 0, |
| 778 | 0, |
| 779 | 144, |
| 780 | 0, |
| 781 | 0, |
| 782 | 0, |
| 783 | 145, |
| 784 | 0, |
| 785 | 0, |
| 786 | 146, |
| 787 | 147, |
| 788 | 148, |
| 789 | 149, |
| 790 | 0, |
| 791 | 0, |
| 792 | 0, |
| 793 | 0 |
| 794 | }; |
| 795 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 796 | const FT_UShort cff_expert_encoding[256] = |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 797 | { |
| 798 | 0, |
| 799 | 0, |
| 800 | 0, |
| 801 | 0, |
| 802 | 0, |
| 803 | 0, |
| 804 | 0, |
| 805 | 0, |
| 806 | 0, |
| 807 | 0, |
| 808 | 0, |
| 809 | 0, |
| 810 | 0, |
| 811 | 0, |
| 812 | 0, |
| 813 | 0, |
| 814 | 0, |
| 815 | 0, |
| 816 | 0, |
| 817 | 0, |
| 818 | 0, |
| 819 | 0, |
| 820 | 0, |
| 821 | 0, |
| 822 | 0, |
| 823 | 0, |
| 824 | 0, |
| 825 | 0, |
| 826 | 0, |
| 827 | 0, |
| 828 | 0, |
| 829 | 0, |
| 830 | 1, |
| 831 | 229, |
| 832 | 230, |
| 833 | 0, |
| 834 | 231, |
| 835 | 232, |
| 836 | 233, |
| 837 | 234, |
| 838 | 235, |
| 839 | 236, |
| 840 | 237, |
| 841 | 238, |
| 842 | 13, |
| 843 | 14, |
| 844 | 15, |
| 845 | 99, |
| 846 | 239, |
| 847 | 240, |
| 848 | 241, |
| 849 | 242, |
| 850 | 243, |
| 851 | 244, |
| 852 | 245, |
| 853 | 246, |
| 854 | 247, |
| 855 | 248, |
| 856 | 27, |
| 857 | 28, |
| 858 | 249, |
| 859 | 250, |
| 860 | 251, |
| 861 | 252, |
| 862 | 0, |
| 863 | 253, |
| 864 | 254, |
| 865 | 255, |
| 866 | 256, |
| 867 | 257, |
| 868 | 0, |
| 869 | 0, |
| 870 | 0, |
| 871 | 258, |
| 872 | 0, |
| 873 | 0, |
| 874 | 259, |
| 875 | 260, |
| 876 | 261, |
| 877 | 262, |
| 878 | 0, |
| 879 | 0, |
| 880 | 263, |
| 881 | 264, |
| 882 | 265, |
| 883 | 0, |
| 884 | 266, |
| 885 | 109, |
| 886 | 110, |
| 887 | 267, |
| 888 | 268, |
| 889 | 269, |
| 890 | 0, |
| 891 | 270, |
| 892 | 271, |
| 893 | 272, |
| 894 | 273, |
| 895 | 274, |
| 896 | 275, |
| 897 | 276, |
| 898 | 277, |
| 899 | 278, |
| 900 | 279, |
| 901 | 280, |
| 902 | 281, |
| 903 | 282, |
| 904 | 283, |
| 905 | 284, |
| 906 | 285, |
| 907 | 286, |
| 908 | 287, |
| 909 | 288, |
| 910 | 289, |
| 911 | 290, |
| 912 | 291, |
| 913 | 292, |
| 914 | 293, |
| 915 | 294, |
| 916 | 295, |
| 917 | 296, |
| 918 | 297, |
| 919 | 298, |
| 920 | 299, |
| 921 | 300, |
| 922 | 301, |
| 923 | 302, |
| 924 | 303, |
| 925 | 0, |
| 926 | 0, |
| 927 | 0, |
| 928 | 0, |
| 929 | 0, |
| 930 | 0, |
| 931 | 0, |
| 932 | 0, |
| 933 | 0, |
| 934 | 0, |
| 935 | 0, |
| 936 | 0, |
| 937 | 0, |
| 938 | 0, |
| 939 | 0, |
| 940 | 0, |
| 941 | 0, |
| 942 | 0, |
| 943 | 0, |
| 944 | 0, |
| 945 | 0, |
| 946 | 0, |
| 947 | 0, |
| 948 | 0, |
| 949 | 0, |
| 950 | 0, |
| 951 | 0, |
| 952 | 0, |
| 953 | 0, |
| 954 | 0, |
| 955 | 0, |
| 956 | 0, |
| 957 | 0, |
| 958 | 0, |
| 959 | 304, |
| 960 | 305, |
| 961 | 306, |
| 962 | 0, |
| 963 | 0, |
| 964 | 307, |
| 965 | 308, |
| 966 | 309, |
| 967 | 310, |
| 968 | 311, |
| 969 | 0, |
| 970 | 312, |
| 971 | 0, |
| 972 | 0, |
| 973 | 312, |
| 974 | 0, |
| 975 | 0, |
| 976 | 314, |
| 977 | 315, |
| 978 | 0, |
| 979 | 0, |
| 980 | 316, |
| 981 | 317, |
| 982 | 318, |
| 983 | 0, |
| 984 | 0, |
| 985 | 0, |
| 986 | 158, |
| 987 | 155, |
| 988 | 163, |
| 989 | 319, |
| 990 | 320, |
| 991 | 321, |
| 992 | 322, |
| 993 | 323, |
| 994 | 324, |
| 995 | 325, |
| 996 | 0, |
| 997 | 0, |
| 998 | 326, |
| 999 | 150, |
| 1000 | 164, |
| 1001 | 169, |
| 1002 | 327, |
| 1003 | 328, |
| 1004 | 329, |
| 1005 | 330, |
| 1006 | 331, |
| 1007 | 332, |
| 1008 | 333, |
| 1009 | 334, |
| 1010 | 335, |
| 1011 | 336, |
| 1012 | 337, |
| 1013 | 338, |
| 1014 | 339, |
| 1015 | 340, |
| 1016 | 341, |
| 1017 | 342, |
| 1018 | 343, |
| 1019 | 344, |
| 1020 | 345, |
| 1021 | 346, |
| 1022 | 347, |
| 1023 | 348, |
| 1024 | 349, |
| 1025 | 350, |
| 1026 | 351, |
| 1027 | 352, |
| 1028 | 353, |
| 1029 | 354, |
| 1030 | 355, |
| 1031 | 356, |
| 1032 | 357, |
| 1033 | 358, |
| 1034 | 359, |
| 1035 | 360, |
| 1036 | 361, |
| 1037 | 362, |
| 1038 | 363, |
| 1039 | 364, |
| 1040 | 365, |
| 1041 | 366, |
| 1042 | 367, |
| 1043 | 368, |
| 1044 | 369, |
| 1045 | 370, |
| 1046 | 371, |
| 1047 | 372, |
| 1048 | 373, |
| 1049 | 374, |
| 1050 | 375, |
| 1051 | 376, |
| 1052 | 377, |
| 1053 | 378 |
| 1054 | }; |
| 1055 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1056 | |
| 1057 | /* read a CFF offset from memory */ |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1058 | static |
| 1059 | FT_ULong cff_get_offset( FT_Byte* p, |
| 1060 | FT_Byte off_size ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1061 | { |
| 1062 | FT_ULong result; |
| 1063 | |
| 1064 | |
| 1065 | for ( result = 0; off_size > 0; off_size-- ) |
| 1066 | { |
| 1067 | result <<= 8; |
| 1068 | result |= *p++; |
| 1069 | } |
| 1070 | |
| 1071 | return result; |
| 1072 | } |
| 1073 | |
| 1074 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1075 | static |
| 1076 | FT_Error cff_new_index( CFF_Index* index, |
| 1077 | FT_Stream stream, |
| 1078 | FT_Bool load ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1079 | { |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1080 | FT_Error error; |
| 1081 | FT_Memory memory = stream->memory; |
| 1082 | FT_UShort count; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1083 | |
| 1084 | |
| 1085 | MEM_Set( index, 0, sizeof ( *index ) ); |
| 1086 | |
| 1087 | index->stream = stream; |
| 1088 | if ( !READ_UShort( count ) && |
| 1089 | count > 0 ) |
| 1090 | { |
| 1091 | FT_Byte* p; |
| 1092 | FT_Byte offsize; |
| 1093 | FT_ULong data_size; |
| 1094 | FT_ULong* poff; |
| 1095 | |
| 1096 | |
| 1097 | /* there is at least one element; read the offset size, */ |
| 1098 | /* then access the offset table to compute the index's total size */ |
| 1099 | if ( READ_Byte( offsize ) ) |
| 1100 | goto Exit; |
| 1101 | |
| 1102 | index->stream = stream; |
| 1103 | index->count = count; |
| 1104 | index->off_size = offsize; |
| 1105 | data_size = (FT_ULong)( count + 1 ) * offsize; |
| 1106 | |
| 1107 | if ( ALLOC_ARRAY( index->offsets, count + 1, FT_ULong ) || |
| 1108 | ACCESS_Frame( data_size ) ) |
| 1109 | goto Exit; |
| 1110 | |
| 1111 | poff = index->offsets; |
| 1112 | p = (FT_Byte*)stream->cursor; |
| 1113 | |
| 1114 | for ( ; (FT_Short)count >= 0; count-- ) |
| 1115 | { |
| 1116 | poff[0] = cff_get_offset( p, offsize ); |
| 1117 | poff++; |
| 1118 | p += offsize; |
| 1119 | } |
| 1120 | |
| 1121 | FORGET_Frame(); |
| 1122 | |
| 1123 | index->data_offset = FILE_Pos(); |
| 1124 | data_size = poff[-1] - 1; |
| 1125 | |
| 1126 | if ( load ) |
| 1127 | { |
| 1128 | /* load the data */ |
| 1129 | if ( EXTRACT_Frame( data_size, index->bytes ) ) |
| 1130 | goto Exit; |
| 1131 | } |
| 1132 | else |
| 1133 | { |
| 1134 | /* skip the data */ |
| 1135 | if ( FILE_Skip( data_size ) ) |
| 1136 | goto Exit; |
| 1137 | } |
| 1138 | } |
| 1139 | |
| 1140 | Exit: |
| 1141 | if ( error ) |
| 1142 | FREE( index->offsets ); |
| 1143 | |
| 1144 | return error; |
| 1145 | } |
| 1146 | |
| 1147 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1148 | static |
| 1149 | void cff_done_index( CFF_Index* index ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1150 | { |
| 1151 | if ( index->stream ) |
| 1152 | { |
| 1153 | FT_Stream stream = index->stream; |
| 1154 | FT_Memory memory = stream->memory; |
| 1155 | |
| 1156 | |
| 1157 | if ( index->bytes ) |
| 1158 | RELEASE_Frame( index->bytes ); |
| 1159 | |
| 1160 | FREE( index->offsets ); |
| 1161 | MEM_Set( index, 0, sizeof ( *index ) ); |
| 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1166 | static |
| 1167 | FT_Error cff_explicit_index( CFF_Index* index, |
| 1168 | FT_Byte*** table ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1169 | { |
| 1170 | FT_Error error = 0; |
| 1171 | FT_Memory memory = index->stream->memory; |
| 1172 | FT_UInt n, offset, old_offset; |
| 1173 | FT_Byte** t; |
| 1174 | |
| 1175 | |
| 1176 | *table = 0; |
| 1177 | |
| 1178 | if ( index->count > 0 && !ALLOC_ARRAY( t, index->count + 1, FT_Byte* ) ) |
| 1179 | { |
| 1180 | old_offset = 1; |
| 1181 | for ( n = 0; n <= index->count; n++ ) |
| 1182 | { |
| 1183 | offset = index->offsets[n]; |
| 1184 | if ( !offset ) |
| 1185 | offset = old_offset; |
| 1186 | |
| 1187 | t[n] = index->bytes + offset - 1; |
| 1188 | |
| 1189 | old_offset = offset; |
| 1190 | } |
| 1191 | *table = t; |
| 1192 | } |
| 1193 | |
| 1194 | return error; |
| 1195 | } |
| 1196 | |
| 1197 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1198 | FT_LOCAL_DEF |
| 1199 | FT_Error CFF_Access_Element( CFF_Index* index, |
| 1200 | FT_UInt element, |
| 1201 | FT_Byte** pbytes, |
| 1202 | FT_ULong* pbyte_len ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1203 | { |
| 1204 | FT_Error error = 0; |
| 1205 | |
| 1206 | |
| 1207 | if ( index && index->count > element ) |
| 1208 | { |
| 1209 | /* compute start and end offsets */ |
| 1210 | FT_ULong off1, off2 = 0; |
| 1211 | |
| 1212 | |
| 1213 | off1 = index->offsets[element]; |
| 1214 | if ( off1 ) |
| 1215 | { |
| 1216 | do |
| 1217 | { |
| 1218 | element++; |
| 1219 | off2 = index->offsets[element]; |
| 1220 | |
| 1221 | } while ( off2 == 0 && element < index->count ); |
| 1222 | |
| 1223 | if ( !off2 ) |
| 1224 | off1 = 0; |
| 1225 | } |
| 1226 | |
| 1227 | /* access element */ |
| 1228 | if ( off1 ) |
| 1229 | { |
| 1230 | *pbyte_len = off2 - off1; |
| 1231 | |
| 1232 | if ( index->bytes ) |
| 1233 | { |
| 1234 | /* this index was completely loaded in memory, that's easy */ |
| 1235 | *pbytes = index->bytes + off1 - 1; |
| 1236 | } |
| 1237 | else |
| 1238 | { |
| 1239 | /* this index is still on disk/file, access it through a frame */ |
| 1240 | FT_Stream stream = index->stream; |
| 1241 | |
| 1242 | |
| 1243 | if ( FILE_Seek( index->data_offset + off1 - 1 ) || |
| 1244 | EXTRACT_Frame( off2 - off1, *pbytes ) ) |
| 1245 | goto Exit; |
| 1246 | } |
| 1247 | } |
| 1248 | else |
| 1249 | { |
| 1250 | /* empty index element */ |
| 1251 | *pbytes = 0; |
| 1252 | *pbyte_len = 0; |
| 1253 | } |
| 1254 | } |
| 1255 | else |
Tom Kacvinsky | 8d1f604 | 2001-01-03 00:21:59 +0000 | [diff] [blame] | 1256 | error = CFF_Err_Invalid_Argument; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1257 | |
| 1258 | Exit: |
| 1259 | return error; |
| 1260 | } |
| 1261 | |
| 1262 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1263 | FT_LOCAL_DEF |
| 1264 | void CFF_Forget_Element( CFF_Index* index, |
| 1265 | FT_Byte** pbytes ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1266 | { |
| 1267 | if ( index->bytes == 0 ) |
| 1268 | { |
| 1269 | FT_Stream stream = index->stream; |
| 1270 | |
| 1271 | |
| 1272 | RELEASE_Frame( *pbytes ); |
| 1273 | } |
| 1274 | } |
| 1275 | |
| 1276 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1277 | FT_LOCAL_DEF |
| 1278 | FT_String* CFF_Get_Name( CFF_Index* index, |
| 1279 | FT_UInt element ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1280 | { |
| 1281 | FT_Memory memory = index->stream->memory; |
| 1282 | FT_Byte* bytes; |
| 1283 | FT_ULong byte_len; |
| 1284 | FT_Error error; |
| 1285 | FT_String* name = 0; |
| 1286 | |
| 1287 | |
| 1288 | error = CFF_Access_Element( index, element, &bytes, &byte_len ); |
| 1289 | if ( error ) |
| 1290 | goto Exit; |
| 1291 | |
| 1292 | if ( !ALLOC( name, byte_len + 1 ) ) |
| 1293 | { |
| 1294 | MEM_Copy( name, bytes, byte_len ); |
| 1295 | name[byte_len] = 0; |
| 1296 | } |
| 1297 | CFF_Forget_Element( index, &bytes ); |
| 1298 | |
| 1299 | Exit: |
| 1300 | return name; |
| 1301 | } |
| 1302 | |
| 1303 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1304 | FT_LOCAL_DEF |
| 1305 | FT_String* CFF_Get_String( CFF_Index* index, |
| 1306 | FT_UInt sid, |
| 1307 | PSNames_Interface* interface ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1308 | { |
| 1309 | /* if it is not a standard string, return it */ |
| 1310 | if ( sid > 390 ) |
| 1311 | return CFF_Get_Name( index, sid - 391 ); |
| 1312 | |
| 1313 | /* that's a standard string, fetch a copy from the PSName module */ |
| 1314 | { |
| 1315 | FT_String* name = 0; |
| 1316 | const char* adobe_name = interface->adobe_std_strings( sid ); |
| 1317 | FT_UInt len; |
| 1318 | |
| 1319 | |
| 1320 | if ( adobe_name ) |
| 1321 | { |
| 1322 | FT_Memory memory = index->stream->memory; |
| 1323 | FT_Error error; |
| 1324 | |
| 1325 | |
| 1326 | len = (FT_UInt)strlen( adobe_name ); |
| 1327 | if ( !ALLOC( name, len + 1 ) ) |
| 1328 | { |
| 1329 | MEM_Copy( name, adobe_name, len ); |
| 1330 | name[len] = 0; |
| 1331 | } |
| 1332 | } |
| 1333 | |
| 1334 | return name; |
| 1335 | } |
| 1336 | } |
| 1337 | |
| 1338 | |
| 1339 | /*************************************************************************/ |
| 1340 | /*************************************************************************/ |
| 1341 | /*** ***/ |
| 1342 | /*** FD Select table support ***/ |
| 1343 | /*** ***/ |
| 1344 | /*************************************************************************/ |
| 1345 | /*************************************************************************/ |
| 1346 | |
| 1347 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1348 | static |
| 1349 | void CFF_Done_FD_Select( CFF_FD_Select* select, |
| 1350 | FT_Stream stream ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1351 | { |
| 1352 | if ( select->data ) |
| 1353 | RELEASE_Frame( select->data ); |
| 1354 | |
| 1355 | select->data_size = 0; |
| 1356 | select->format = 0; |
| 1357 | select->range_count = 0; |
| 1358 | } |
| 1359 | |
| 1360 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1361 | static |
| 1362 | FT_Error CFF_Load_FD_Select( CFF_FD_Select* select, |
| 1363 | FT_UInt num_glyphs, |
| 1364 | FT_Stream stream, |
| 1365 | FT_ULong offset ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1366 | { |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1367 | FT_Error error; |
| 1368 | FT_Byte format; |
| 1369 | FT_UInt num_ranges; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1370 | |
| 1371 | |
| 1372 | /* read format */ |
| 1373 | if ( FILE_Seek( offset ) || READ_Byte( format ) ) |
| 1374 | goto Exit; |
| 1375 | |
| 1376 | select->format = format; |
| 1377 | select->cache_count = 0; /* clear cache */ |
| 1378 | |
| 1379 | switch ( format ) |
| 1380 | { |
| 1381 | case 0: /* format 0, that's simple */ |
| 1382 | select->data_size = num_glyphs; |
| 1383 | goto Load_Data; |
| 1384 | |
| 1385 | case 3: /* format 3, a tad more complex */ |
| 1386 | if ( READ_UShort( num_ranges ) ) |
| 1387 | goto Exit; |
| 1388 | |
| 1389 | select->data_size = num_ranges * 3 + 2; |
| 1390 | |
| 1391 | Load_Data: |
| 1392 | if ( EXTRACT_Frame( select->data_size, select->data ) ) |
| 1393 | goto Exit; |
| 1394 | break; |
| 1395 | |
| 1396 | default: /* hmm... that's wrong */ |
Tom Kacvinsky | 8d1f604 | 2001-01-03 00:21:59 +0000 | [diff] [blame] | 1397 | error = CFF_Err_Invalid_File_Format; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1398 | } |
| 1399 | |
| 1400 | Exit: |
| 1401 | return error; |
| 1402 | } |
| 1403 | |
| 1404 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1405 | FT_LOCAL_DEF |
| 1406 | FT_Byte CFF_Get_FD( CFF_FD_Select* select, |
| 1407 | FT_UInt glyph_index ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1408 | { |
| 1409 | FT_Byte fd = 0; |
| 1410 | |
| 1411 | |
| 1412 | switch ( select->format ) |
| 1413 | { |
| 1414 | case 0: |
| 1415 | fd = select->data[glyph_index]; |
| 1416 | break; |
| 1417 | |
| 1418 | case 3: |
| 1419 | /* first, compare to cache */ |
| 1420 | if ( (FT_UInt)(glyph_index-select->cache_first) < select->cache_count ) |
| 1421 | { |
| 1422 | fd = select->cache_fd; |
| 1423 | break; |
| 1424 | } |
| 1425 | |
| 1426 | /* then, lookup the ranges array */ |
| 1427 | { |
| 1428 | FT_Byte* p = select->data; |
| 1429 | FT_Byte* p_limit = p + select->data_size; |
| 1430 | FT_Byte fd2; |
| 1431 | FT_UInt first, limit; |
| 1432 | |
| 1433 | |
| 1434 | first = NEXT_UShort( p ); |
| 1435 | do |
| 1436 | { |
| 1437 | if ( glyph_index < first ) |
| 1438 | break; |
| 1439 | |
| 1440 | fd2 = *p++; |
| 1441 | limit = NEXT_UShort( p ); |
| 1442 | |
| 1443 | if ( glyph_index < limit ) |
| 1444 | { |
| 1445 | fd = fd2; |
| 1446 | |
| 1447 | /* update cache */ |
| 1448 | select->cache_first = first; |
| 1449 | select->cache_count = limit-first; |
| 1450 | select->cache_fd = fd2; |
| 1451 | break; |
| 1452 | } |
| 1453 | first = limit; |
| 1454 | |
| 1455 | } while ( p < p_limit ); |
| 1456 | } |
| 1457 | break; |
| 1458 | |
| 1459 | default: |
| 1460 | ; |
| 1461 | } |
| 1462 | |
| 1463 | return fd; |
| 1464 | } |
| 1465 | |
| 1466 | |
| 1467 | /*************************************************************************/ |
| 1468 | /*************************************************************************/ |
| 1469 | /*** ***/ |
| 1470 | /*** CFF font support ***/ |
| 1471 | /*** ***/ |
| 1472 | /*************************************************************************/ |
| 1473 | /*************************************************************************/ |
| 1474 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1475 | static |
| 1476 | void CFF_Done_Encoding( CFF_Encoding* encoding, |
| 1477 | FT_Stream stream ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1478 | { |
| 1479 | FT_Memory memory = stream->memory; |
| 1480 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1481 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1482 | FREE( encoding->codes ); |
| 1483 | FREE( encoding->sids ); |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1484 | encoding->format = 0; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1485 | encoding->offset = 0; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1486 | encoding->codes = 0; |
| 1487 | encoding->sids = 0; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1488 | } |
| 1489 | |
| 1490 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1491 | static |
| 1492 | void CFF_Done_Charset( CFF_Charset* charset, |
| 1493 | FT_Stream stream ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1494 | { |
| 1495 | FT_Memory memory = stream->memory; |
| 1496 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1497 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1498 | FREE( charset->sids ); |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1499 | charset->format = 0; |
| 1500 | charset->offset = 0; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1501 | charset->sids = 0; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1502 | } |
| 1503 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1504 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1505 | static |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1506 | FT_Error CFF_Load_Charset( CFF_Charset* charset, |
| 1507 | FT_UInt num_glyphs, |
| 1508 | FT_Stream stream, |
| 1509 | FT_ULong base_offset, |
| 1510 | FT_ULong offset ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1511 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1512 | FT_Memory memory = stream->memory; |
| 1513 | FT_Error error = 0; |
| 1514 | FT_UShort glyph_sid; |
| 1515 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1516 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1517 | charset->offset = base_offset + offset; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1518 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1519 | /* Get the format of the table. */ |
| 1520 | if ( FILE_Seek( charset->offset ) || |
| 1521 | READ_Byte( charset->format ) ) |
| 1522 | goto Exit; |
| 1523 | |
| 1524 | /* If the the offset is greater than 2, we have to parse the */ |
| 1525 | /* charset table. */ |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1526 | if ( offset > 2 ) |
| 1527 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1528 | FT_UInt j; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1529 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1530 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1531 | /* Allocate memory for sids. */ |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1532 | if ( ALLOC( charset->sids, num_glyphs * sizeof ( FT_UShort ) ) ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1533 | goto Exit; |
| 1534 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1535 | /* assign the .notdef glyph */ |
| 1536 | charset->sids[0] = 0; |
| 1537 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1538 | switch ( charset->format ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1539 | { |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1540 | case 0: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1541 | for ( j = 1; j < num_glyphs; j++ ) |
| 1542 | { |
| 1543 | if ( READ_UShort( glyph_sid ) ) |
| 1544 | goto Exit; |
| 1545 | |
| 1546 | charset->sids[j] = glyph_sid; |
| 1547 | } |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1548 | break; |
| 1549 | |
| 1550 | case 1: |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1551 | case 2: |
| 1552 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1553 | FT_UInt nleft; |
| 1554 | FT_UInt i; |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1555 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1556 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1557 | j = 1; |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1558 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1559 | while ( j < num_glyphs ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1560 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1561 | |
| 1562 | /* Read the first glyph sid of the range. */ |
| 1563 | if ( READ_UShort( glyph_sid ) ) |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1564 | goto Exit; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1565 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1566 | /* Read the number of glyphs in the range. */ |
| 1567 | if ( charset->format == 2 ) |
| 1568 | { |
| 1569 | if ( READ_UShort( nleft ) ) |
| 1570 | goto Exit; |
| 1571 | } |
| 1572 | else |
| 1573 | { |
| 1574 | if ( READ_Byte( nleft ) ) |
| 1575 | goto Exit; |
| 1576 | } |
| 1577 | |
| 1578 | /* Fill in the range of sids -- `nleft + 1' glyphs. */ |
| 1579 | for ( i = 0; i <= nleft; i++, j++, glyph_sid++ ) |
| 1580 | charset->sids[j] = glyph_sid; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1581 | } |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1582 | } |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1583 | break; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1584 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1585 | default: |
| 1586 | FT_ERROR(( "CFF_Load_Charset: invalid table format!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1587 | error = CFF_Err_Invalid_File_Format; |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1588 | goto Exit; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1589 | } |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1590 | } |
| 1591 | else |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1592 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1593 | /* Parse default tables corresponding to offset == 0, 1, or 2. */ |
| 1594 | /* CFF specification intimates the following: */ |
| 1595 | /* */ |
| 1596 | /* In order to use a predefined charset, the following must be */ |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1597 | /* true: The charset constructed for the glyphs in the font's */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1598 | /* charstrings dictionary must match the predefined charset in */ |
| 1599 | /* the first num_glyphs, and hence must match the predefined */ |
| 1600 | /* charset *exactly*. */ |
| 1601 | |
| 1602 | switch ( offset ) |
| 1603 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1604 | case 0: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1605 | if ( num_glyphs != 229 ) |
| 1606 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1607 | FT_ERROR(("CFF_Load_Charset: implicit charset not equal to\n" |
| 1608 | "predefined charset (Adobe ISO-Latin)!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1609 | error = CFF_Err_Invalid_File_Format; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1610 | goto Exit; |
| 1611 | } |
| 1612 | |
| 1613 | /* Allocate memory for sids. */ |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1614 | if ( ALLOC( charset->sids, num_glyphs * sizeof ( FT_UShort ) ) ) |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1615 | goto Exit; |
| 1616 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1617 | /* Copy the predefined charset into the allocated memory. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1618 | MEM_Copy( charset->sids, cff_isoadobe_charset, |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1619 | num_glyphs * sizeof ( FT_UShort ) ); |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1620 | |
| 1621 | break; |
| 1622 | |
| 1623 | case 1: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1624 | if ( num_glyphs != 166 ) |
| 1625 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1626 | FT_ERROR(( "CFF_Load_Charset: implicit charset not equal to\n" |
| 1627 | "predefined charset (Adobe Expert)!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1628 | error = CFF_Err_Invalid_File_Format; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1629 | goto Exit; |
| 1630 | } |
| 1631 | |
| 1632 | /* Allocate memory for sids. */ |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1633 | if ( ALLOC( charset->sids, num_glyphs * sizeof ( FT_UShort ) ) ) |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1634 | goto Exit; |
| 1635 | |
| 1636 | /* Copy the predefined charset into the allocated memory. */ |
| 1637 | MEM_Copy( charset->sids, cff_expert_charset, |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1638 | num_glyphs * sizeof ( FT_UShort ) ); |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1639 | |
| 1640 | break; |
| 1641 | |
| 1642 | case 2: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1643 | if ( num_glyphs != 87 ) |
| 1644 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1645 | FT_ERROR(( "CFF_Load_Charset: implicit charset not equal to\n" |
| 1646 | "predefined charset (Adobe Expert Subset)!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1647 | error = CFF_Err_Invalid_File_Format; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1648 | goto Exit; |
| 1649 | } |
| 1650 | |
| 1651 | /* Allocate memory for sids. */ |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1652 | if ( ALLOC( charset->sids, num_glyphs * sizeof ( FT_UShort ) ) ) |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1653 | goto Exit; |
| 1654 | |
| 1655 | /* Copy the predefined charset into the allocated memory. */ |
| 1656 | MEM_Copy( charset->sids, cff_expertsubset_charset, |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1657 | num_glyphs * sizeof ( FT_UShort ) ); |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1658 | |
| 1659 | break; |
| 1660 | |
| 1661 | default: |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1662 | error = CFF_Err_Invalid_File_Format; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1663 | goto Exit; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1664 | } |
| 1665 | } |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1666 | |
| 1667 | Exit: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1668 | |
| 1669 | /* Clean up if there was an error. */ |
| 1670 | if ( error ) |
| 1671 | if ( charset->sids ) |
| 1672 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1673 | if ( charset->sids ) |
| 1674 | FREE( charset->sids ); |
| 1675 | charset->format = 0; |
| 1676 | charset->offset = 0; |
| 1677 | charset->sids = 0; |
| 1678 | } |
| 1679 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1680 | return error; |
| 1681 | } |
| 1682 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1683 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1684 | static |
| 1685 | FT_Error CFF_Load_Encoding( CFF_Encoding* encoding, |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1686 | CFF_Charset* charset, |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1687 | FT_UInt num_glyphs, |
| 1688 | FT_Stream stream, |
| 1689 | FT_ULong base_offset, |
| 1690 | FT_ULong offset ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1691 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1692 | FT_Memory memory = stream->memory; |
| 1693 | FT_Error error = 0; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1694 | FT_UInt count; |
| 1695 | FT_UInt j; |
| 1696 | FT_UShort glyph_sid; |
| 1697 | FT_Byte glyph_code; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1698 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1699 | |
| 1700 | /* Check for charset->sids. If we do not have this, we fail. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1701 | if ( !charset->sids ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1702 | { |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1703 | error = CFF_Err_Invalid_File_Format; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1704 | goto Exit; |
| 1705 | } |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1706 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1707 | /* Allocate memory for sids/codes -- there are at most 256 sids/codes */ |
| 1708 | /* for an encoding. */ |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1709 | if ( ALLOC( encoding->sids, 256 * sizeof ( FT_UShort ) ) || |
| 1710 | ALLOC( encoding->codes, 256 * sizeof ( FT_UShort ) ) ) |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1711 | goto Exit; |
| 1712 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1713 | /* Zero out the code to gid/sid mappings. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1714 | for ( j = 0; j < 255; j++ ) |
| 1715 | { |
| 1716 | encoding->sids [j] = 0; |
| 1717 | encoding->codes[j] = 0; |
| 1718 | } |
| 1719 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1720 | /* Note: The encoding table in a CFF font is indexed by glyph index, */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1721 | /* where the first encoded glyph index is 1. Hence, we read the char */ |
| 1722 | /* code (`glyph_code') at index j and make the assignment: */ |
| 1723 | /* */ |
| 1724 | /* encoding->codes[glyph_code] = j + 1 */ |
| 1725 | /* */ |
| 1726 | /* We also make the assignment: */ |
| 1727 | /* */ |
| 1728 | /* encoding->sids[glyph_code] = charset->sids[j + 1] */ |
| 1729 | /* */ |
| 1730 | /* This gives us both a code to GID and a code to SID mapping. */ |
| 1731 | |
| 1732 | if ( offset > 1 ) |
| 1733 | { |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1734 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1735 | encoding->offset = base_offset + offset; |
| 1736 | |
| 1737 | /* we need to parse the table to determine its size */ |
| 1738 | if ( FILE_Seek( encoding->offset ) || |
| 1739 | READ_Byte( encoding->format ) || |
| 1740 | READ_Byte( count ) ) |
| 1741 | goto Exit; |
| 1742 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1743 | switch ( encoding->format & 0x7F ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1744 | { |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1745 | case 0: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1746 | for ( j = 1; j <= count; j++ ) |
| 1747 | { |
| 1748 | if ( READ_Byte( glyph_code ) ) |
| 1749 | goto Exit; |
| 1750 | |
| 1751 | /* Make sure j is not too big. */ |
| 1752 | if ( j > num_glyphs ) |
| 1753 | goto Exit; |
| 1754 | |
| 1755 | /* Assign code to GID mapping. */ |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1756 | encoding->codes[glyph_code] = (FT_UShort)j; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1757 | |
| 1758 | /* Assign code to SID mapping. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1759 | encoding->sids[glyph_code] = charset->sids[j]; |
| 1760 | } |
| 1761 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1762 | break; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1763 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1764 | case 1: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1765 | { |
| 1766 | FT_Byte nleft; |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1767 | FT_UInt i = 1; |
| 1768 | FT_UInt k; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1769 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1770 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1771 | /* Parse the Format1 ranges. */ |
| 1772 | for ( j = 0; j < count; j++, i += nleft ) |
| 1773 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1774 | /* Read the first glyph code of the range. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1775 | if ( READ_Byte( glyph_code ) ) |
| 1776 | goto Exit; |
| 1777 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1778 | /* Read the number of codes in the range. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1779 | if ( READ_Byte( nleft ) ) |
| 1780 | goto Exit; |
| 1781 | |
| 1782 | /* Increment nleft, so we read `nleft + 1' codes/sids. */ |
| 1783 | nleft++; |
| 1784 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1785 | /* Fill in the range of codes/sids. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1786 | for ( k = i; k < nleft + i; k++, glyph_code++ ) |
| 1787 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1788 | /* Make sure k is not too big. */ |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1789 | if ( k > num_glyphs ) |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1790 | goto Exit; |
| 1791 | |
| 1792 | /* Assign code to GID mapping. */ |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1793 | encoding->codes[glyph_code] = (FT_UShort)k; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1794 | |
| 1795 | /* Assign code to SID mapping. */ |
| 1796 | encoding->sids[glyph_code] = charset->sids[k]; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1797 | } |
| 1798 | } |
| 1799 | } |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1800 | break; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1801 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1802 | default: |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1803 | FT_ERROR(( "CFF_Load_Encoding: invalid table format!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1804 | error = CFF_Err_Invalid_File_Format; |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1805 | goto Exit; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1806 | } |
| 1807 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1808 | /* Parse supplemental encodings, if any. */ |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1809 | if ( encoding->format & 0x80 ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1810 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1811 | FT_UInt glyph_id; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1812 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1813 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1814 | /* count supplements */ |
| 1815 | if ( READ_Byte( count ) ) |
| 1816 | goto Exit; |
| 1817 | |
| 1818 | for ( j = 0; j < count; j++ ) |
| 1819 | { |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1820 | /* Read supplemental glyph code. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1821 | if ( READ_Byte( glyph_code ) ) |
| 1822 | goto Exit; |
| 1823 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1824 | /* Read the SID associated with this glyph code. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1825 | if ( READ_UShort( glyph_sid ) ) |
| 1826 | goto Exit; |
| 1827 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1828 | /* Assign code to SID mapping. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1829 | encoding->sids[glyph_code] = glyph_sid; |
| 1830 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1831 | /* First, lookup GID which has been assigned to */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1832 | /* SID glyph_sid. */ |
| 1833 | for ( glyph_id = 0; glyph_id < num_glyphs; glyph_id++ ) |
| 1834 | { |
| 1835 | if ( charset->sids[glyph_id] == glyph_sid ) |
| 1836 | break; |
| 1837 | } |
| 1838 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1839 | /* Now, make the assignment. */ |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1840 | encoding->codes[glyph_code] = (FT_UShort)glyph_id; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1841 | } |
| 1842 | } |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1843 | } |
| 1844 | else |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1845 | { |
| 1846 | FT_UInt i; |
| 1847 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1848 | |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1849 | /* We take into account the fact a CFF font can use a predefined */ |
| 1850 | /* encoding without containing all of the glyphs encoded by this */ |
| 1851 | /* encoding (see the note at the end of section 12 in the CFF */ |
| 1852 | /* specification). */ |
| 1853 | |
| 1854 | switch ( offset ) |
| 1855 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1856 | case 0: |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1857 | /* First, copy the code to SID mapping. */ |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1858 | MEM_Copy( encoding->sids, cff_standard_encoding, |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1859 | 256 * sizeof ( FT_UShort ) ); |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1860 | |
| 1861 | /* Construct code to GID mapping from code */ |
| 1862 | /* to SID mapping and charset. */ |
| 1863 | for ( j = 0; j < 256; j++ ) |
| 1864 | { |
| 1865 | /* If j is encoded, find the GID for it. */ |
| 1866 | if ( encoding->sids[j] ) |
| 1867 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1868 | for ( i = 1; i < num_glyphs; i++ ) |
| 1869 | /* We matched, so break. */ |
| 1870 | if ( charset->sids[i] == encoding->sids[j] ) |
| 1871 | break; |
| 1872 | |
| 1873 | /* i will be equal to num_glyphs if we exited the above */ |
| 1874 | /* loop without a match. In this case, we also have to */ |
| 1875 | /* fix the code to SID mapping. */ |
| 1876 | if ( i == num_glyphs ) |
| 1877 | { |
| 1878 | encoding->codes[j] = 0; |
| 1879 | encoding->sids [j] = 0; |
| 1880 | } |
| 1881 | else |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1882 | encoding->codes[j] = (FT_UShort)i; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1883 | } |
| 1884 | } |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1885 | break; |
| 1886 | |
| 1887 | case 1: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1888 | /* First, copy the code to SID mapping. */ |
| 1889 | MEM_Copy( encoding->sids, cff_expert_encoding, |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1890 | 256 * sizeof ( FT_UShort ) ); |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1891 | |
| 1892 | /* Construct code to GID mapping from code to SID mapping */ |
| 1893 | /* and charset. */ |
| 1894 | for ( j = 0; j < 256; j++ ) |
| 1895 | { |
| 1896 | /* If j is encoded, find the GID for it. */ |
| 1897 | if ( encoding->sids[j] ) |
| 1898 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1899 | for ( i = 1; i < num_glyphs; i++ ) |
| 1900 | /* We matched, so break. */ |
| 1901 | if ( charset->sids[i] == encoding->sids[j] ) |
| 1902 | break; |
| 1903 | |
| 1904 | /* i will be equal to num_glyphs if we exited the above */ |
| 1905 | /* loop without a match. In this case, we also have to */ |
| 1906 | /* fix the code to SID mapping. */ |
| 1907 | if ( i == num_glyphs ) |
| 1908 | { |
| 1909 | encoding->codes[j] = 0; |
| 1910 | encoding->sids [j] = 0; |
| 1911 | } |
| 1912 | else |
David Turner | 8edbcab | 2001-06-19 08:28:24 +0000 | [diff] [blame^] | 1913 | encoding->codes[j] = (FT_UShort)i; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1914 | } |
| 1915 | } |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1916 | break; |
| 1917 | |
| 1918 | default: |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 1919 | FT_ERROR(( "CFF_Load_Encoding: invalid table format!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 1920 | error = CFF_Err_Invalid_File_Format; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1921 | goto Exit; |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1922 | } |
| 1923 | } |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1924 | |
| 1925 | Exit: |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1926 | |
| 1927 | /* Clean up if there was an error. */ |
| 1928 | if ( error ) |
| 1929 | { |
| 1930 | if ( encoding->sids || encoding->codes ) |
| 1931 | { |
Tom Kacvinsky | 4ba1c0a | 2000-12-30 00:37:14 +0000 | [diff] [blame] | 1932 | if ( encoding->sids ) |
| 1933 | FREE( encoding->sids ); |
| 1934 | |
| 1935 | if ( encoding->codes ) |
| 1936 | FREE( encoding->codes ); |
| 1937 | |
| 1938 | charset->format = 0; |
| 1939 | charset->offset = 0; |
| 1940 | charset->sids = 0; |
| 1941 | } |
| 1942 | } |
| 1943 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1944 | return error; |
| 1945 | } |
| 1946 | |
| 1947 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1948 | static |
| 1949 | FT_Error CFF_Load_SubFont( CFF_SubFont* font, |
| 1950 | CFF_Index* index, |
| 1951 | FT_UInt font_index, |
| 1952 | FT_Stream stream, |
| 1953 | FT_ULong base_offset ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1954 | { |
| 1955 | FT_Error error; |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 1956 | CFF_Parser parser; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 1957 | FT_Byte* dict; |
| 1958 | FT_ULong dict_len; |
| 1959 | CFF_Font_Dict* top = &font->font_dict; |
| 1960 | CFF_Private* priv = &font->private_dict; |
| 1961 | |
| 1962 | |
| 1963 | CFF_Parser_Init( &parser, CFF_CODE_TOPDICT, &font->font_dict ); |
| 1964 | |
| 1965 | /* set defaults */ |
| 1966 | MEM_Set( top, 0, sizeof ( *top ) ); |
| 1967 | |
| 1968 | top->underline_position = -100; |
| 1969 | top->underline_thickness = 50; |
| 1970 | top->charstring_type = 2; |
| 1971 | top->font_matrix.xx = 0x10000L; |
| 1972 | top->font_matrix.yy = 0x10000L; |
| 1973 | top->cid_count = 8720; |
| 1974 | |
| 1975 | error = CFF_Access_Element( index, font_index, &dict, &dict_len ) || |
| 1976 | CFF_Parser_Run( &parser, dict, dict + dict_len ); |
| 1977 | |
| 1978 | CFF_Forget_Element( index, &dict ); |
| 1979 | |
| 1980 | if ( error ) |
| 1981 | goto Exit; |
| 1982 | |
| 1983 | /* if it is a CID font, we stop there */ |
| 1984 | if ( top->cid_registry ) |
| 1985 | goto Exit; |
| 1986 | |
| 1987 | /* parse the private dictionary, if any */ |
| 1988 | if ( top->private_offset && top->private_size ) |
| 1989 | { |
| 1990 | /* set defaults */ |
| 1991 | MEM_Set( priv, 0, sizeof ( *priv ) ); |
| 1992 | |
| 1993 | priv->blue_shift = 7; |
| 1994 | priv->blue_fuzz = 1; |
| 1995 | priv->lenIV = -1; |
| 1996 | priv->expansion_factor = (FT_Fixed)0.06 * 0x10000L; |
| 1997 | priv->blue_scale = (FT_Fixed)0.039625 * 0x10000L; |
| 1998 | |
| 1999 | CFF_Parser_Init( &parser, CFF_CODE_PRIVATE, priv ); |
| 2000 | |
| 2001 | if ( FILE_Seek( base_offset + font->font_dict.private_offset ) || |
| 2002 | ACCESS_Frame( font->font_dict.private_size ) ) |
| 2003 | goto Exit; |
| 2004 | |
| 2005 | error = CFF_Parser_Run( &parser, |
| 2006 | (FT_Byte*)stream->cursor, |
| 2007 | (FT_Byte*)stream->limit ); |
| 2008 | FORGET_Frame(); |
| 2009 | if ( error ) |
| 2010 | goto Exit; |
| 2011 | } |
| 2012 | |
| 2013 | /* read the local subrs, if any */ |
| 2014 | if ( priv->local_subrs_offset ) |
| 2015 | { |
| 2016 | if ( FILE_Seek( base_offset + top->private_offset + |
| 2017 | priv->local_subrs_offset ) ) |
| 2018 | goto Exit; |
| 2019 | |
| 2020 | error = cff_new_index( &font->local_subrs_index, stream, 1 ); |
| 2021 | if ( error ) |
| 2022 | goto Exit; |
| 2023 | |
| 2024 | font->num_local_subrs = font->local_subrs_index.count; |
| 2025 | error = cff_explicit_index( &font->local_subrs_index, |
| 2026 | &font->local_subrs ); |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2027 | if ( error ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2028 | goto Exit; |
| 2029 | } |
| 2030 | |
| 2031 | Exit: |
| 2032 | return error; |
| 2033 | } |
| 2034 | |
| 2035 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2036 | static |
| 2037 | void CFF_Done_SubFont( FT_Memory memory, |
| 2038 | CFF_SubFont* subfont ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2039 | { |
| 2040 | if ( subfont ) |
| 2041 | { |
| 2042 | cff_done_index( &subfont->local_subrs_index ); |
| 2043 | FREE( subfont->local_subrs ); |
| 2044 | } |
| 2045 | } |
| 2046 | |
| 2047 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2048 | FT_LOCAL_DEF |
| 2049 | FT_Error CFF_Load_Font( FT_Stream stream, |
| 2050 | FT_Int face_index, |
| 2051 | CFF_Font* font ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2052 | { |
| 2053 | static const FT_Frame_Field cff_header_fields[] = |
| 2054 | { |
| 2055 | #undef FT_STRUCTURE |
| 2056 | #define FT_STRUCTURE CFF_Font |
| 2057 | |
| 2058 | FT_FRAME_START( 4 ), |
| 2059 | FT_FRAME_BYTE( version_major ), |
| 2060 | FT_FRAME_BYTE( version_minor ), |
| 2061 | FT_FRAME_BYTE( header_size ), |
| 2062 | FT_FRAME_BYTE( absolute_offsize ), |
| 2063 | FT_FRAME_END |
| 2064 | }; |
| 2065 | |
| 2066 | FT_Error error; |
| 2067 | FT_Memory memory = stream->memory; |
| 2068 | FT_ULong base_offset; |
| 2069 | CFF_Font_Dict* dict; |
| 2070 | |
| 2071 | |
| 2072 | MEM_Set( font, 0, sizeof ( *font ) ); |
| 2073 | |
| 2074 | font->stream = stream; |
| 2075 | font->memory = memory; |
| 2076 | dict = &font->top_font.font_dict; |
| 2077 | base_offset = FILE_Pos(); |
| 2078 | |
| 2079 | /* read CFF font header */ |
| 2080 | if ( READ_Fields( cff_header_fields, font ) ) |
| 2081 | goto Exit; |
| 2082 | |
| 2083 | /* check format */ |
| 2084 | if ( font->version_major != 1 || |
| 2085 | font->header_size < 4 || |
| 2086 | font->absolute_offsize > 4 ) |
| 2087 | { |
| 2088 | FT_TRACE2(( "[not a CFF font header!]\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 2089 | error = CFF_Err_Unknown_File_Format; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2090 | goto Exit; |
| 2091 | } |
| 2092 | |
| 2093 | /* skip the rest of the header */ |
| 2094 | if ( FILE_Skip( font->header_size - 4 ) ) |
| 2095 | goto Exit; |
| 2096 | |
| 2097 | /* read the name, top dict, string and global subrs index */ |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2098 | if ( FT_SET_ERROR( cff_new_index( &font->name_index, stream, 0 )) || |
| 2099 | FT_SET_ERROR( cff_new_index( &font->font_dict_index, stream, 0 )) || |
| 2100 | FT_SET_ERROR( cff_new_index( &font->string_index, stream, 0 )) || |
| 2101 | FT_SET_ERROR( cff_new_index( &font->global_subrs_index, stream, 1 )) ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2102 | goto Exit; |
| 2103 | |
| 2104 | /* well, we don't really forget the `disabled' fonts... */ |
| 2105 | font->num_faces = font->name_index.count; |
| 2106 | if ( face_index >= (FT_Int)font->num_faces ) |
| 2107 | { |
| 2108 | FT_ERROR(( "CFF_Load_Font: incorrect face index = %d\n", |
| 2109 | face_index )); |
Tom Kacvinsky | 8d1f604 | 2001-01-03 00:21:59 +0000 | [diff] [blame] | 2110 | error = CFF_Err_Invalid_Argument; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2111 | } |
| 2112 | |
| 2113 | /* in case of a font format check, simply exit now */ |
| 2114 | if ( face_index < 0 ) |
| 2115 | goto Exit; |
| 2116 | |
| 2117 | /* now, parse the top-level font dictionary */ |
| 2118 | error = CFF_Load_SubFont( &font->top_font, |
| 2119 | &font->font_dict_index, |
| 2120 | face_index, |
| 2121 | stream, |
| 2122 | base_offset ); |
| 2123 | if ( error ) |
| 2124 | goto Exit; |
| 2125 | |
| 2126 | /* now, check for a CID font */ |
| 2127 | if ( dict->cid_registry ) |
| 2128 | { |
| 2129 | CFF_Index fd_index; |
| 2130 | CFF_SubFont* sub; |
| 2131 | FT_UInt index; |
| 2132 | |
| 2133 | |
| 2134 | /* this is a CID-keyed font, we must now allocate a table of */ |
| 2135 | /* sub-fonts, then load each of them separately */ |
| 2136 | if ( FILE_Seek( base_offset + dict->cid_fd_array_offset ) ) |
| 2137 | goto Exit; |
| 2138 | |
| 2139 | error = cff_new_index( &fd_index, stream, 0 ); |
| 2140 | if ( error ) |
| 2141 | goto Exit; |
| 2142 | |
| 2143 | if ( fd_index.count > CFF_MAX_CID_FONTS ) |
| 2144 | { |
| 2145 | FT_ERROR(( "CFF_Load_Font: FD array too large in CID font\n" )); |
| 2146 | goto Fail_CID; |
| 2147 | } |
| 2148 | |
| 2149 | /* allocate & read each font dict independently */ |
| 2150 | font->num_subfonts = fd_index.count; |
| 2151 | if ( ALLOC_ARRAY( sub, fd_index.count, CFF_SubFont ) ) |
| 2152 | goto Fail_CID; |
| 2153 | |
| 2154 | /* setup pointer table */ |
| 2155 | for ( index = 0; index < fd_index.count; index++ ) |
| 2156 | font->subfonts[index] = sub + index; |
| 2157 | |
| 2158 | /* now load each sub font independently */ |
| 2159 | for ( index = 0; index < fd_index.count; index++ ) |
| 2160 | { |
| 2161 | sub = font->subfonts[index]; |
| 2162 | error = CFF_Load_SubFont( sub, &fd_index, index, |
| 2163 | stream, base_offset ); |
| 2164 | if ( error ) |
| 2165 | goto Fail_CID; |
| 2166 | } |
| 2167 | |
| 2168 | /* now load the FD Select array */ |
| 2169 | error = CFF_Load_FD_Select( &font->fd_select, |
| 2170 | dict->cid_count, |
| 2171 | stream, |
| 2172 | base_offset + dict->cid_fd_select_offset ); |
| 2173 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2174 | Fail_CID: |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2175 | cff_done_index( &fd_index ); |
| 2176 | |
| 2177 | if ( error ) |
| 2178 | goto Exit; |
| 2179 | } |
| 2180 | else |
| 2181 | font->num_subfonts = 0; |
| 2182 | |
| 2183 | /* read the charstrings index now */ |
| 2184 | if ( dict->charstrings_offset == 0 ) |
| 2185 | { |
| 2186 | FT_ERROR(( "CFF_Load_Font: no charstrings offset!\n" )); |
Werner Lemberg | 1429db6 | 2001-04-02 23:54:01 +0000 | [diff] [blame] | 2187 | error = CFF_Err_Unknown_File_Format; |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2188 | goto Exit; |
| 2189 | } |
| 2190 | |
| 2191 | if ( FILE_Seek( base_offset + dict->charstrings_offset ) ) |
| 2192 | goto Exit; |
| 2193 | |
| 2194 | error = cff_new_index( &font->charstrings_index, stream, 0 ); |
| 2195 | if ( error ) |
| 2196 | goto Exit; |
| 2197 | |
| 2198 | /* explicit the global subrs */ |
| 2199 | font->num_global_subrs = font->global_subrs_index.count; |
| 2200 | font->num_glyphs = font->charstrings_index.count; |
| 2201 | |
| 2202 | error = cff_explicit_index( &font->global_subrs_index, |
| 2203 | &font->global_subrs ) ; |
| 2204 | |
| 2205 | if ( error ) |
| 2206 | goto Exit; |
| 2207 | |
| 2208 | /* read the Charset and Encoding tables when available */ |
| 2209 | error = CFF_Load_Charset( &font->charset, font->num_glyphs, stream, |
| 2210 | base_offset, dict->charset_offset ); |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2211 | if ( error ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2212 | goto Exit; |
| 2213 | |
Werner Lemberg | 6b76663 | 2000-12-30 22:14:58 +0000 | [diff] [blame] | 2214 | error = CFF_Load_Encoding( &font->encoding, |
| 2215 | &font->charset, |
| 2216 | font->num_glyphs, |
| 2217 | stream, |
| 2218 | base_offset, |
| 2219 | dict->encoding_offset ); |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2220 | if ( error ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2221 | goto Exit; |
| 2222 | |
| 2223 | /* get the font name */ |
| 2224 | font->font_name = CFF_Get_Name( &font->name_index, face_index ); |
| 2225 | |
| 2226 | Exit: |
| 2227 | return error; |
| 2228 | } |
| 2229 | |
| 2230 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 2231 | FT_LOCAL_DEF |
| 2232 | void CFF_Done_Font( CFF_Font* font ) |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 2233 | { |
| 2234 | FT_Memory memory = font->memory; |
| 2235 | FT_UInt index; |
| 2236 | |
| 2237 | |
| 2238 | cff_done_index( &font->global_subrs_index ); |
| 2239 | cff_done_index( &font->string_index ); |
| 2240 | cff_done_index( &font->font_dict_index ); |
| 2241 | cff_done_index( &font->name_index ); |
| 2242 | cff_done_index( &font->charstrings_index ); |
| 2243 | |
| 2244 | /* release font dictionaries */ |
| 2245 | for ( index = 0; index < font->num_subfonts; index++ ) |
| 2246 | CFF_Done_SubFont( memory, font->subfonts[index] ); |
| 2247 | |
| 2248 | CFF_Done_Encoding( &font->encoding, font->stream ); |
| 2249 | CFF_Done_Charset( &font->charset, font->stream ); |
| 2250 | |
| 2251 | CFF_Done_SubFont( memory, &font->top_font ); |
| 2252 | |
| 2253 | CFF_Done_FD_Select( &font->fd_select, font->stream ); |
| 2254 | |
| 2255 | FREE( font->global_subrs ); |
| 2256 | FREE( font->font_name ); |
| 2257 | } |
| 2258 | |
| 2259 | |
| 2260 | /* END */ |