ttgload.c revision d5c1b27d58c4308745338cb0f3f710d6c1549982
1/***************************************************************************/ 2/* */ 3/* ttgload.c */ 4/* */ 5/* TrueType Glyph 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, */ 11/* modified, and distributed under the terms of the FreeType project */ 12/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13/* this file you indicate that you have read the license and */ 14/* understand and accept it fully. */ 15/* */ 16/***************************************************************************/ 17 18 19#include <ft2build.h> 20#include FT_INTERNAL_DEBUG_H 21#include FT_INTERNAL_CALC_H 22#include FT_INTERNAL_STREAM_H 23#include FT_INTERNAL_SFNT_H 24#include FT_TRUETYPE_TAGS_H 25#include FT_OUTLINE_H 26 27#include FT_SOURCE_FILE( truetype, ttgload.h ) 28 29 30 /*************************************************************************/ 31 /* */ 32 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 33 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 34 /* messages during execution. */ 35 /* */ 36#undef FT_COMPONENT 37#define FT_COMPONENT trace_ttgload 38 39 40 /*************************************************************************/ 41 /* */ 42 /* Composite font flags. */ 43 /* */ 44#define ARGS_ARE_WORDS 0x001 45#define ARGS_ARE_XY_VALUES 0x002 46#define ROUND_XY_TO_GRID 0x004 47#define WE_HAVE_A_SCALE 0x008 48/* reserved 0x010 */ 49#define MORE_COMPONENTS 0x020 50#define WE_HAVE_AN_XY_SCALE 0x040 51#define WE_HAVE_A_2X2 0x080 52#define WE_HAVE_INSTR 0x100 53#define USE_MY_METRICS 0x200 54 55 56 57 /*************************************************************************/ 58 /* */ 59 /* <Function> */ 60 /* TT_Get_Metrics */ 61 /* */ 62 /* <Description> */ 63 /* Returns the horizontal or vertical metrics in font units for a */ 64 /* given glyph. The metrics are the left side bearing (resp. top */ 65 /* side bearing) and advance width (resp. advance height). */ 66 /* */ 67 /* <Input> */ 68 /* header :: A pointer to either the horizontal or vertical metrics */ 69 /* structure. */ 70 /* */ 71 /* index :: The glyph index. */ 72 /* */ 73 /* <Output> */ 74 /* bearing :: The bearing, either left side or top side. */ 75 /* */ 76 /* advance :: The advance width resp. advance height. */ 77 /* */ 78 /* <Note> */ 79 /* This function will much probably move to another component in the */ 80 /* near future, but I haven't decided which yet. */ 81 /* */ 82 FT_LOCAL_DEF 83 void TT_Get_Metrics( TT_HoriHeader* header, 84 FT_UInt index, 85 FT_Short* bearing, 86 FT_UShort* advance ) 87 { 88 TT_LongMetrics* longs_m; 89 FT_UShort k = header->number_Of_HMetrics; 90 91 92 if ( index < (FT_UInt)k ) 93 { 94 longs_m = (TT_LongMetrics*)header->long_metrics + index; 95 *bearing = longs_m->bearing; 96 *advance = longs_m->advance; 97 } 98 else 99 { 100 *bearing = ((TT_ShortMetrics*)header->short_metrics)[index - k]; 101 *advance = ((TT_LongMetrics*)header->long_metrics)[k - 1].advance; 102 } 103 } 104 105 106 /*************************************************************************/ 107 /* */ 108 /* Returns the horizontal metrics in font units for a given glyph. If */ 109 /* `check' is true, take care of monospaced fonts by returning the */ 110 /* advance width maximum. */ 111 /* */ 112 static 113 void Get_HMetrics( TT_Face face, 114 FT_UInt index, 115 FT_Bool check, 116 FT_Short* lsb, 117 FT_UShort* aw ) 118 { 119 TT_Get_Metrics( &face->horizontal, index, lsb, aw ); 120 121 if ( check && face->postscript.isFixedPitch ) 122 *aw = face->horizontal.advance_Width_Max; 123 } 124 125 126 /*************************************************************************/ 127 /* */ 128 /* Returns the advance width table for a given pixel size if it is */ 129 /* found in the font's `hdmx' table (if any). */ 130 /* */ 131 static 132 FT_Byte* Get_Advance_Widths( TT_Face face, 133 FT_UShort ppem ) 134 { 135 FT_UShort n; 136 137 for ( n = 0; n < face->hdmx.num_records; n++ ) 138 if ( face->hdmx.records[n].ppem == ppem ) 139 return face->hdmx.records[n].widths; 140 141 return NULL; 142 } 143 144 145#define cur_to_org( n, zone ) \ 146 MEM_Copy( (zone)->org, (zone)->cur, n * sizeof ( FT_Vector ) ) 147 148#define org_to_cur( n, zone ) \ 149 MEM_Copy( (zone)->cur, (zone)->org, n * sizeof ( FT_Vector ) ) 150 151 152 /*************************************************************************/ 153 /* */ 154 /* Translates an array of coordinates. */ 155 /* */ 156 static 157 void translate_array( FT_UInt n, 158 FT_Vector* coords, 159 FT_Pos delta_x, 160 FT_Pos delta_y ) 161 { 162 FT_UInt k; 163 164 165 if ( delta_x ) 166 for ( k = 0; k < n; k++ ) 167 coords[k].x += delta_x; 168 169 if ( delta_y ) 170 for ( k = 0; k < n; k++ ) 171 coords[k].y += delta_y; 172 } 173 174 175 static 176 void tt_prepare_zone( TT_GlyphZone* zone, 177 FT_GlyphLoad* load, 178 FT_UInt start_point, 179 FT_UInt start_contour ) 180 { 181 zone->n_points = load->outline.n_points - start_point; 182 zone->n_contours = load->outline.n_contours - start_contour; 183 zone->org = load->extra_points + start_point; 184 zone->cur = load->outline.points + start_point; 185 zone->tags = (FT_Byte*)load->outline.tags + start_point; 186 zone->contours = (FT_UShort*)load->outline.contours + start_contour; 187 } 188 189 190#undef IS_HINTED 191#define IS_HINTED( flags ) ( ( flags & FT_LOAD_NO_HINTING ) == 0 ) 192 193 194 /*************************************************************************/ 195 /* */ 196 /* The following functions are used by default with TrueType fonts. */ 197 /* However, they can be replaced by alternatives if we need to support */ 198 /* TrueType-compressed formats (like MicroType) in the future. */ 199 /* */ 200 /*************************************************************************/ 201 202 FT_CALLBACK_DEF 203 FT_Error TT_Access_Glyph_Frame( TT_Loader* loader, 204 FT_UInt glyph_index, 205 FT_ULong offset, 206 FT_UInt byte_count ) 207 { 208 FT_Error error; 209 FT_Stream stream = loader->stream; 210 211 /* for non-debug mode */ 212 FT_UNUSED( glyph_index ); 213 214 215 FT_TRACE5(( "Glyph %ld\n", glyph_index )); 216 217 /* the following line sets the `error' variable through macros! */ 218 if ( FILE_Seek( offset ) || ACCESS_Frame( byte_count ) ) 219 return error; 220 221 return TT_Err_Ok; 222 } 223 224 225 FT_CALLBACK_DEF 226 void TT_Forget_Glyph_Frame( TT_Loader* loader ) 227 { 228 FT_Stream stream = loader->stream; 229 230 231 FORGET_Frame(); 232 } 233 234 235 FT_CALLBACK_DEF 236 FT_Error TT_Load_Glyph_Header( TT_Loader* loader ) 237 { 238 FT_Stream stream = loader->stream; 239 240 241 loader->n_contours = GET_Short(); 242 243 loader->bbox.xMin = GET_Short(); 244 loader->bbox.yMin = GET_Short(); 245 loader->bbox.xMax = GET_Short(); 246 loader->bbox.yMax = GET_Short(); 247 248 FT_TRACE5(( " # of contours: %d\n", loader->n_contours )); 249 FT_TRACE5(( " xMin: %4d xMax: %4d\n", loader->bbox.xMin, 250 loader->bbox.xMax )); 251 FT_TRACE5(( " yMin: %4d yMax: %4d\n", loader->bbox.yMin, 252 loader->bbox.yMax )); 253 254 return FT_Err_Ok; 255 } 256 257 258 FT_CALLBACK_DEF 259 FT_Error TT_Load_Simple_Glyph( TT_Loader* load ) 260 { 261 FT_Error error; 262 FT_Stream stream = load->stream; 263 FT_GlyphLoader* gloader = load->gloader; 264 FT_Int n_contours = load->n_contours; 265 FT_Outline* outline; 266 TT_Face face = (TT_Face)load->face; 267 TT_GlyphSlot slot = (TT_GlyphSlot)load->glyph; 268 FT_UShort n_ins; 269 FT_Int n, n_points; 270 271 272 /* reading the contours endpoints & number of points */ 273 { 274 short* cur = gloader->current.outline.contours; 275 short* limit = cur + n_contours; 276 277 278 for ( ; cur < limit; cur++ ) 279 cur[0] = GET_UShort(); 280 281 n_points = 0; 282 if ( n_contours > 0 ) 283 n_points = cur[-1] + 1; 284 285 error = FT_GlyphLoader_Check_Points( gloader, n_points + 2, 0 ); 286 if ( error ) 287 goto Fail; 288 289 outline = &gloader->current.outline; 290 } 291 292 /* reading the bytecode instructions */ 293 slot->control_len = 0; 294 slot->control_data = 0; 295 296 n_ins = GET_UShort(); 297 298 FT_TRACE5(( " Instructions size: %d\n", n_ins )); 299 300 if ( n_ins > face->max_profile.maxSizeOfInstructions ) 301 { 302 FT_TRACE0(( "ERROR: Too many instructions!\n" )); 303 error = TT_Err_Too_Many_Ins; 304 goto Fail; 305 } 306 307 if ( stream->cursor + n_ins > stream->limit ) 308 { 309 FT_TRACE0(( "ERROR: Instruction count mismatch!\n" )); 310 error = TT_Err_Too_Many_Ins; 311 goto Fail; 312 } 313 314#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 315 316 if ( ( load->load_flags & 317 ( FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING ) ) == 0 && 318 load->instructions ) 319 { 320 slot->control_len = n_ins; 321 slot->control_data = load->instructions; 322 323 MEM_Copy( load->instructions, stream->cursor, n_ins ); 324 } 325 326#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ 327 328 stream->cursor += n_ins; 329 330 /* reading the point tags */ 331 332 { 333 FT_Byte* flag = (FT_Byte*)outline->tags; 334 FT_Byte* limit = flag + n_points; 335 FT_Byte c, count; 336 337 338 for ( ; flag < limit; flag++ ) 339 { 340 *flag = c = GET_Byte(); 341 if ( c & 8 ) 342 { 343 for ( count = GET_Byte(); count > 0; count-- ) 344 *++flag = c; 345 } 346 } 347 } 348 349 /* reading the X coordinates */ 350 351 { 352 FT_Vector* vec = outline->points; 353 FT_Vector* limit = vec + n_points; 354 FT_Byte* flag = (FT_Byte*)outline->tags; 355 FT_Pos x = 0; 356 357 358 for ( ; vec < limit; vec++, flag++ ) 359 { 360 FT_Pos y = 0; 361 362 363 if ( *flag & 2 ) 364 { 365 y = GET_Byte(); 366 if ( ( *flag & 16 ) == 0 ) 367 y = -y; 368 } 369 else if ( ( *flag & 16 ) == 0 ) 370 y = GET_Short(); 371 372 x += y; 373 vec->x = x; 374 } 375 } 376 377 /* reading the Y coordinates */ 378 379 { 380 FT_Vector* vec = gloader->current.outline.points; 381 FT_Vector* limit = vec + n_points; 382 FT_Byte* flag = (FT_Byte*)outline->tags; 383 FT_Pos x = 0; 384 385 386 for ( ; vec < limit; vec++, flag++ ) 387 { 388 FT_Pos y = 0; 389 390 391 if ( *flag & 4 ) 392 { 393 y = GET_Byte(); 394 if ( ( *flag & 32 ) == 0 ) 395 y = -y; 396 } 397 else if ( ( *flag & 32 ) == 0 ) 398 y = GET_Short(); 399 400 x += y; 401 vec->y = x; 402 } 403 } 404 405 /* clear the touch tags */ 406 for ( n = 0; n < n_points; n++ ) 407 outline->tags[n] &= FT_Curve_Tag_On; 408 409 outline->n_points = n_points; 410 outline->n_contours = n_contours; 411 412 Fail: 413 return error; 414 } 415 416 417 FT_CALLBACK_DEF 418 FT_Error TT_Load_Composite_Glyph( TT_Loader* loader ) 419 { 420 FT_Error error; 421 FT_Stream stream = loader->stream; 422 FT_GlyphLoader* gloader = loader->gloader; 423 FT_SubGlyph* subglyph; 424 FT_UInt num_subglyphs; 425 426 427 num_subglyphs = 0; 428 429 do 430 { 431 FT_Fixed xx, xy, yy, yx; 432 433 434 /* check that we can load a new subglyph */ 435 error = FT_GlyphLoader_Check_Subglyphs( gloader, num_subglyphs + 1 ); 436 if ( error ) 437 goto Fail; 438 439 subglyph = gloader->current.subglyphs + num_subglyphs; 440 441 subglyph->arg1 = subglyph->arg2 = 0; 442 443 subglyph->flags = GET_UShort(); 444 subglyph->index = GET_UShort(); 445 446 /* read arguments */ 447 if ( subglyph->flags & ARGS_ARE_WORDS ) 448 { 449 subglyph->arg1 = GET_Short(); 450 subglyph->arg2 = GET_Short(); 451 } 452 else 453 { 454 subglyph->arg1 = GET_Char(); 455 subglyph->arg2 = GET_Char(); 456 } 457 458 /* read transform */ 459 xx = yy = 0x10000L; 460 xy = yx = 0; 461 462 if ( subglyph->flags & WE_HAVE_A_SCALE ) 463 { 464 xx = (FT_Fixed)GET_Short() << 2; 465 yy = xx; 466 } 467 else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) 468 { 469 xx = (FT_Fixed)GET_Short() << 2; 470 yy = (FT_Fixed)GET_Short() << 2; 471 } 472 else if ( subglyph->flags & WE_HAVE_A_2X2 ) 473 { 474 xx = (FT_Fixed)GET_Short() << 2; 475 xy = (FT_Fixed)GET_Short() << 2; 476 yx = (FT_Fixed)GET_Short() << 2; 477 yy = (FT_Fixed)GET_Short() << 2; 478 } 479 480 subglyph->transform.xx = xx; 481 subglyph->transform.xy = xy; 482 subglyph->transform.yx = yx; 483 subglyph->transform.yy = yy; 484 485 num_subglyphs++; 486 487 } while ( subglyph->flags & MORE_COMPONENTS ); 488 489 gloader->current.num_subglyphs = num_subglyphs; 490 491#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 492 { 493 /* we must undo the ACCESS_Frame in order to point to the */ 494 /* composite instructions, if we find some. */ 495 /* we will process them later... */ 496 /* */ 497 loader->ins_pos = FILE_Pos() + stream->cursor - stream->limit; 498 } 499#endif 500 501 Fail: 502 return error; 503 } 504 505 506 FT_LOCAL_DEF 507 void TT_Init_Glyph_Loading( TT_Face face ) 508 { 509 face->access_glyph_frame = TT_Access_Glyph_Frame; 510 face->read_glyph_header = TT_Load_Glyph_Header; 511 face->read_simple_glyph = TT_Load_Simple_Glyph; 512 face->read_composite_glyph = TT_Load_Composite_Glyph; 513 face->forget_glyph_frame = TT_Forget_Glyph_Frame; 514 } 515 516 517 /*************************************************************************/ 518 /* */ 519 /* <Function> */ 520 /* TT_Process_Simple_Glyph */ 521 /* */ 522 /* <Description> */ 523 /* Once a simple glyph has been loaded, it needs to be processed. */ 524 /* Usually, this means scaling and hinting through bytecode */ 525 /* interpretation. */ 526 /* */ 527 static 528 FT_Error TT_Process_Simple_Glyph( TT_Loader* load, 529 FT_Bool debug ) 530 { 531 FT_GlyphLoader* gloader = load->gloader; 532 FT_Outline* outline = &gloader->current.outline; 533 FT_UInt n_points = outline->n_points; 534 FT_UInt n_ins; 535 TT_GlyphZone* zone = &load->zone; 536 FT_Error error = FT_Err_Ok; 537 538 FT_UNUSED( debug ); /* used by truetype interpreter only */ 539 540 541 n_ins = load->glyph->control_len; 542 543 /* add shadow points */ 544 545 /* Now add the two shadow points at n and n + 1. */ 546 /* We need the left side bearing and advance width. */ 547 548 { 549 FT_Vector* pp1; 550 FT_Vector* pp2; 551 552 553 /* pp1 = xMin - lsb */ 554 pp1 = outline->points + n_points; 555 pp1->x = load->bbox.xMin - load->left_bearing; 556 pp1->y = 0; 557 558 /* pp2 = pp1 + aw */ 559 pp2 = pp1 + 1; 560 pp2->x = pp1->x + load->advance; 561 pp2->y = 0; 562 563 outline->tags[n_points ] = 0; 564 outline->tags[n_points + 1] = 0; 565 } 566 567 /* Note that we return two more points that are not */ 568 /* part of the glyph outline. */ 569 570 n_points += 2; 571 572 /* set up zone for hinting */ 573 tt_prepare_zone( zone, &gloader->current, 0, 0 ); 574 575 /* eventually scale the glyph */ 576 if ( !( load->load_flags & FT_LOAD_NO_SCALE ) ) 577 { 578 FT_Vector* vec = zone->cur; 579 FT_Vector* limit = vec + n_points; 580 FT_Fixed x_scale = load->size->metrics.x_scale; 581 FT_Fixed y_scale = load->size->metrics.y_scale; 582 583 584 /* first scale the glyph points */ 585 for ( ; vec < limit; vec++ ) 586 { 587 vec->x = FT_MulFix( vec->x, x_scale ); 588 vec->y = FT_MulFix( vec->y, y_scale ); 589 } 590 } 591 592 cur_to_org( n_points, zone ); 593 594 /* eventually hint the glyph */ 595 if ( IS_HINTED( load->load_flags ) ) 596 { 597 FT_Pos x = zone->org[n_points-2].x; 598 599 600 x = ( ( x + 32 ) & -64 ) - x; 601 translate_array( n_points, zone->org, x, 0 ); 602 603 org_to_cur( n_points, zone ); 604 605 zone->cur[n_points - 1].x = ( zone->cur[n_points - 1].x + 32 ) & -64; 606 607#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 608 609 /* now consider hinting */ 610 if ( n_ins > 0 ) 611 { 612 error = TT_Set_CodeRange( load->exec, tt_coderange_glyph, 613 load->exec->glyphIns, n_ins ); 614 if ( error ) 615 goto Exit; 616 617 load->exec->is_composite = FALSE; 618 load->exec->pedantic_hinting = (FT_Bool)( load->load_flags & 619 FT_LOAD_PEDANTIC ); 620 load->exec->pts = *zone; 621 load->exec->pts.n_points += 2; 622 623 error = TT_Run_Context( load->exec, debug ); 624 if ( error && load->exec->pedantic_hinting ) 625 goto Exit; 626 627 error = FT_Err_Ok; /* ignore bytecode errors in non-pedantic mode */ 628 } 629 630#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ 631 632 } 633 634 /* save glyph phantom points */ 635 if ( !load->preserve_pps ) 636 { 637 load->pp1 = zone->cur[n_points - 2]; 638 load->pp2 = zone->cur[n_points - 1]; 639 } 640 641#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 642 Exit: 643#endif 644 return error; 645 } 646 647 648 /*************************************************************************/ 649 /* */ 650 /* <Function> */ 651 /* load_truetype_glyph */ 652 /* */ 653 /* <Description> */ 654 /* Loads a given truetype glyph. Handles composites and uses a */ 655 /* TT_Loader object. */ 656 /* */ 657 static 658 FT_Error load_truetype_glyph( TT_Loader* loader, 659 FT_UInt glyph_index ) 660 { 661 662#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 663 FT_Stream stream = loader->stream; 664#endif 665 666 FT_Error error; 667 TT_Face face = (TT_Face)loader->face; 668 FT_ULong offset; 669 FT_Int contours_count; 670 FT_UInt index, num_points, num_contours, count; 671 FT_Fixed x_scale, y_scale; 672 FT_ULong ins_offset; 673 FT_GlyphLoader* gloader = loader->gloader; 674 FT_Bool opened_frame = 0; 675 676 677 /* check glyph index */ 678 index = glyph_index; 679 if ( index >= (FT_UInt)face->root.num_glyphs ) 680 { 681 error = TT_Err_Invalid_Glyph_Index; 682 goto Exit; 683 } 684 685 loader->glyph_index = glyph_index; 686 num_contours = 0; 687 num_points = 0; 688 ins_offset = 0; 689 690 x_scale = 0x10000L; 691 y_scale = 0x10000L; 692 if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 693 { 694 x_scale = loader->size->metrics.x_scale; 695 y_scale = loader->size->metrics.y_scale; 696 } 697 698 /* get horizontal metrics */ 699 { 700 FT_Short left_bearing; 701 FT_UShort advance_width; 702 703 704 Get_HMetrics( face, index, 705 (FT_Bool)!(loader->load_flags & 706 FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH), 707 &left_bearing, 708 &advance_width ); 709 710 loader->left_bearing = left_bearing; 711 loader->advance = advance_width; 712 } 713 714 offset = face->glyph_locations[index]; 715 count = 0; 716 717 if ( index < (FT_UInt)face->num_locations - 1 ) 718 count = face->glyph_locations[index + 1] - offset; 719 720 if ( count == 0 ) 721 { 722 /* as described by Frederic Loyer, these are spaces, and */ 723 /* not the unknown glyph. */ 724 loader->bbox.xMin = 0; 725 loader->bbox.xMax = 0; 726 loader->bbox.yMin = 0; 727 loader->bbox.yMax = 0; 728 729 loader->pp1.x = 0; 730 loader->pp2.x = loader->advance; 731 732 if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 733 loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); 734 735#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 736 737 if ( loader->exec ) 738 loader->exec->glyphSize = 0; 739 740#endif 741 742 error = FT_Err_Ok; 743 goto Exit; 744 } 745 746 offset = loader->glyf_offset + offset; 747 748 /* access glyph frame */ 749 error = face->access_glyph_frame( loader, glyph_index, offset, count ); 750 if ( error ) 751 goto Exit; 752 753 opened_frame = 1; 754 755 /* read first glyph header */ 756 error = face->read_glyph_header( loader ); 757 if ( error ) 758 goto Fail; 759 760 contours_count = loader->n_contours; 761 762 count -= 10; 763 764 loader->pp1.x = loader->bbox.xMin - loader->left_bearing; 765 loader->pp1.y = 0; 766 loader->pp2.x = loader->pp1.x + loader->advance; 767 loader->pp2.y = 0; 768 769 if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 770 { 771 loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); 772 loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); 773 } 774 775 /***********************************************************************/ 776 /***********************************************************************/ 777 /***********************************************************************/ 778 779 /* if it is a simple glyph, load it */ 780 781 if ( contours_count >= 0 ) 782 { 783 /* check that we can add the contours to the glyph */ 784 error = FT_GlyphLoader_Check_Points( gloader, 0, contours_count ); 785 if ( error ) 786 goto Fail; 787 788 error = face->read_simple_glyph( loader ); 789 if ( error ) 790 goto Fail; 791 792#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 793 794 { 795 TT_Size size = (TT_Size)loader->size; 796 797 798 error = TT_Process_Simple_Glyph( loader, 799 (FT_Bool)( size && size->debug ) ); 800 } 801 802#else 803 804 error = TT_Process_Simple_Glyph( loader, 0 ); 805 806#endif 807 808 if ( error ) 809 goto Fail; 810 811 FT_GlyphLoader_Add( gloader ); 812 813 /* Note: We could have put the simple loader source there */ 814 /* but the code is fat enough already :-) */ 815 } 816 817 /***********************************************************************/ 818 /***********************************************************************/ 819 /***********************************************************************/ 820 821 /* otherwise, load a composite! */ 822 else 823 { 824 TT_GlyphSlot glyph = (TT_GlyphSlot)loader->glyph; 825 FT_UInt start_point, start_contour; 826 FT_ULong ins_pos; /* position of composite instructions, if any */ 827 828 829 /* for each subglyph, read composite header */ 830 start_point = gloader->base.outline.n_points; 831 start_contour = gloader->base.outline.n_contours; 832 833 error = face->read_composite_glyph( loader ); 834 if ( error ) 835 goto Fail; 836 837 ins_pos = loader->ins_pos; 838 face->forget_glyph_frame( loader ); 839 opened_frame = 0; 840 841 /* if the flag FT_LOAD_NO_RECURSE is set, we return the subglyph */ 842 /* `as is' in the glyph slot (the client application will be */ 843 /* responsible for interpreting this data)... */ 844 /* */ 845 if ( loader->load_flags & FT_LOAD_NO_RECURSE ) 846 { 847 /* set up remaining glyph fields */ 848 FT_GlyphLoader_Add( gloader ); 849 850 glyph->num_subglyphs = gloader->base.num_subglyphs; 851 glyph->format = ft_glyph_format_composite; 852 glyph->subglyphs = gloader->base.subglyphs; 853 854 goto Exit; 855 } 856 857 /*********************************************************************/ 858 /*********************************************************************/ 859 /*********************************************************************/ 860 861 /* Now, read each subglyph independently. */ 862 { 863 FT_Int n, num_base_points, num_new_points; 864 FT_SubGlyph* subglyph = 0; 865 866 FT_UInt num_subglyphs = gloader->current.num_subglyphs; 867 FT_UInt num_base_subgs = gloader->base.num_subglyphs; 868 869 870 FT_GlyphLoader_Add( gloader ); 871 872 for ( n = 0; n < (FT_Int)num_subglyphs; n++ ) 873 { 874 FT_Vector pp1, pp2; 875 FT_Pos x, y; 876 877 878 /* Each time we call load_truetype_glyph in this loop, the */ 879 /* value of `gloader.base.subglyphs' can change due to table */ 880 /* reallocations. We thus need to recompute the subglyph */ 881 /* pointer on each iteration. */ 882 subglyph = gloader->base.subglyphs + num_base_subgs + n; 883 884 pp1 = loader->pp1; 885 pp2 = loader->pp2; 886 887 num_base_points = gloader->base.outline.n_points; 888 889 error = load_truetype_glyph( loader, subglyph->index ); 890 if ( error ) 891 goto Fail; 892 893 subglyph = gloader->base.subglyphs + num_base_subgs + n; 894 895 if ( subglyph->flags & USE_MY_METRICS ) 896 { 897 pp1 = loader->pp1; 898 pp2 = loader->pp2; 899 } 900 else 901 { 902 loader->pp1 = pp1; 903 loader->pp2 = pp2; 904 } 905 906 num_points = gloader->base.outline.n_points; 907 908 num_new_points = num_points - num_base_points; 909 910 /* now perform the transform required for this subglyph */ 911 912 if ( subglyph->flags & ( WE_HAVE_A_SCALE | 913 WE_HAVE_AN_XY_SCALE | 914 WE_HAVE_A_2X2 ) ) 915 { 916 FT_Vector* cur = gloader->base.outline.points + 917 num_base_points; 918 FT_Vector* org = gloader->base.extra_points + 919 num_base_points; 920 FT_Vector* limit = cur + num_new_points; 921 922 923 for ( ; cur < limit; cur++, org++ ) 924 { 925 FT_Vector_Transform( cur, &subglyph->transform ); 926 FT_Vector_Transform( org, &subglyph->transform ); 927 } 928 } 929 930 /* apply offset */ 931 932 if ( !( subglyph->flags & ARGS_ARE_XY_VALUES ) ) 933 { 934 FT_UInt k = subglyph->arg1; 935 FT_UInt l = subglyph->arg2; 936 FT_Vector* p1; 937 FT_Vector* p2; 938 939 940 if ( start_point + k >= (FT_UInt)num_base_points || 941 l >= (FT_UInt)num_new_points ) 942 { 943 error = TT_Err_Invalid_Composite; 944 goto Fail; 945 } 946 947 l += num_base_points; 948 949 p1 = gloader->base.outline.points + start_point + k; 950 p2 = gloader->base.outline.points + start_point + l; 951 952 x = p1->x - p2->x; 953 y = p1->y - p2->y; 954 } 955 else 956 { 957 x = subglyph->arg1; 958 y = subglyph->arg2; 959 960 if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) 961 { 962 x = FT_MulFix( x, x_scale ); 963 y = FT_MulFix( y, y_scale ); 964 965 if ( subglyph->flags & ROUND_XY_TO_GRID ) 966 { 967 x = ( x + 32 ) & -64; 968 y = ( y + 32 ) & -64; 969 } 970 } 971 } 972 973 translate_array( num_new_points, loader->zone.cur, x, y ); 974 cur_to_org( num_new_points, &loader->zone ); 975 } 976 977 /*******************************************************************/ 978 /*******************************************************************/ 979 /*******************************************************************/ 980 981 /* we have finished loading all sub-glyphs; now, look for */ 982 /* instructions for this composite! */ 983 984#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 985 986 if ( num_subglyphs > 0 && 987 loader->exec && 988 ins_pos > 0 && 989 subglyph->flags & WE_HAVE_INSTR ) 990 { 991 FT_UShort n_ins; 992 TT_ExecContext exec = loader->exec; 993 TT_GlyphZone* pts; 994 FT_Vector* pp1; 995 996 997 /* read size of instructions */ 998 if ( FILE_Seek( ins_pos ) || 999 READ_UShort( n_ins ) ) 1000 goto Fail; 1001 FT_TRACE5(( " Instructions size = %d\n", n_ins )); 1002 1003 /* in some fonts? */ 1004 if ( n_ins == 0xFFFF ) 1005 n_ins = 0; 1006 1007 /* check it */ 1008 if ( n_ins > face->max_profile.maxSizeOfInstructions ) 1009 { 1010 FT_TRACE0(( "Too many instructions (%d) in composite glyph %ld\n", 1011 n_ins, subglyph->index )); 1012 return TT_Err_Too_Many_Ins; 1013 } 1014 1015 /* read the instructions */ 1016 if ( FILE_Read( exec->glyphIns, n_ins ) ) 1017 goto Fail; 1018 1019 glyph->control_data = exec->glyphIns; 1020 glyph->control_len = n_ins; 1021 1022 error = TT_Set_CodeRange( exec, 1023 tt_coderange_glyph, 1024 exec->glyphIns, 1025 n_ins ); 1026 if ( error ) 1027 goto Fail; 1028 1029 /* prepare the execution context */ 1030 tt_prepare_zone( &exec->pts, &gloader->base, 1031 start_point, start_contour ); 1032 pts = &exec->pts; 1033 1034 pts->n_points = num_points + 2; 1035 pts->n_contours = gloader->base.outline.n_contours; 1036 1037 /* add phantom points */ 1038 pp1 = pts->cur + num_points; 1039 pp1[0] = loader->pp1; 1040 pp1[1] = loader->pp2; 1041 1042 pts->tags[num_points ] = 0; 1043 pts->tags[num_points + 1] = 0; 1044 1045 /* if hinting, round the phantom points */ 1046 if ( IS_HINTED( loader->load_flags ) ) 1047 { 1048 pp1[0].x = ( ( loader->pp1.x + 32 ) & -64 ); 1049 pp1[1].x = ( ( loader->pp2.x + 32 ) & -64 ); 1050 } 1051 1052 { 1053 FT_UInt k; 1054 1055 1056 for ( k = 0; k < num_points; k++ ) 1057 pts->tags[k] &= FT_Curve_Tag_On; 1058 } 1059 1060 cur_to_org( num_points + 2, pts ); 1061 1062 /* now consider hinting */ 1063 if ( IS_HINTED( loader->load_flags ) && n_ins > 0 ) 1064 { 1065 exec->is_composite = TRUE; 1066 exec->pedantic_hinting = 1067 (FT_Bool)( loader->load_flags & FT_LOAD_PEDANTIC ); 1068 1069 error = TT_Run_Context( exec, ((TT_Size)loader->size)->debug ); 1070 if ( error && exec->pedantic_hinting ) 1071 goto Fail; 1072 } 1073 1074 /* save glyph origin and advance points */ 1075 loader->pp1 = pp1[0]; 1076 loader->pp2 = pp1[1]; 1077 } 1078 1079#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ 1080 1081 } 1082 /* end of composite loading */ 1083 } 1084 1085 /***********************************************************************/ 1086 /***********************************************************************/ 1087 /***********************************************************************/ 1088 1089 Fail: 1090 if ( opened_frame ) 1091 face->forget_glyph_frame( loader ); 1092 1093 Exit: 1094 return error; 1095 } 1096 1097 1098 static 1099 void compute_glyph_metrics( TT_Loader* loader, 1100 FT_UInt glyph_index ) 1101 { 1102 FT_BBox bbox; 1103 TT_Face face = (TT_Face)loader->face; 1104 FT_Fixed x_scale, y_scale; 1105 TT_GlyphSlot glyph = loader->glyph; 1106 TT_Size size = (TT_Size)loader->size; 1107 1108 1109 x_scale = 0x10000L; 1110 y_scale = 0x10000L; 1111 if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 1112 { 1113 x_scale = size->root.metrics.x_scale; 1114 y_scale = size->root.metrics.y_scale; 1115 } 1116 1117 if ( glyph->format != ft_glyph_format_composite ) 1118 { 1119 glyph->outline.flags &= ~ft_outline_single_pass; 1120 1121 /* copy outline to our glyph slot */ 1122 FT_GlyphLoader_Copy_Points( glyph->internal->loader, loader->gloader ); 1123 glyph->outline = glyph->internal->loader->base.outline; 1124 1125 /* translate array so that (0,0) is the glyph's origin */ 1126 FT_Outline_Translate( &glyph->outline, -loader->pp1.x, 0 ); 1127 1128 FT_Outline_Get_CBox( &glyph->outline, &bbox ); 1129 1130 if ( IS_HINTED( loader->load_flags ) ) 1131 { 1132 /* grid-fit the bounding box */ 1133 bbox.xMin &= -64; 1134 bbox.yMin &= -64; 1135 bbox.xMax = ( bbox.xMax + 63 ) & -64; 1136 bbox.yMax = ( bbox.yMax + 63 ) & -64; 1137 } 1138 } 1139 else 1140 bbox = loader->bbox; 1141 1142 /* get the device-independent horizontal advance. It is scaled later */ 1143 /* by the base layer. */ 1144 { 1145 FT_Pos advance = loader->advance; 1146 1147 1148 /* the flag FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH was introduced to */ 1149 /* correctly support DynaLab fonts, which have an incorrect */ 1150 /* `advance_Width_Max' field! It is used, to my knowledge, */ 1151 /* exclusively in the X-TrueType font server. */ 1152 /* */ 1153 if ( face->postscript.isFixedPitch && 1154 ( loader->load_flags & FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ) == 0 ) 1155 advance = face->horizontal.advance_Width_Max; 1156 1157 /* we need to return the advance in font units in linearHoriAdvance, */ 1158 /* it will be scaled later by the base layer. */ 1159 glyph->linearHoriAdvance = advance; 1160 } 1161 1162 glyph->metrics.horiBearingX = bbox.xMin; 1163 glyph->metrics.horiBearingY = bbox.yMax; 1164 glyph->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; 1165 1166 /* Now take care of vertical metrics. In the case where there is */ 1167 /* no vertical information within the font (relatively common), make */ 1168 /* up some metrics by `hand'... */ 1169 1170 { 1171 FT_Short top_bearing; /* vertical top side bearing (EM units) */ 1172 FT_UShort advance_height; /* vertical advance height (EM units) */ 1173 1174 FT_Pos left; /* scaled vertical left side bearing */ 1175 FT_Pos Top; /* scaled original vertical top side bearing */ 1176 FT_Pos top; /* scaled vertical top side bearing */ 1177 FT_Pos advance; /* scaled vertical advance height */ 1178 1179 1180 /* Get the unscaled `tsb' and `ah' */ 1181 if ( face->vertical_info && 1182 face->vertical.number_Of_VMetrics > 0 ) 1183 { 1184 /* Don't assume that both the vertical header and vertical */ 1185 /* metrics are present in the same font :-) */ 1186 1187 TT_Get_Metrics( (TT_HoriHeader*)&face->vertical, 1188 glyph_index, 1189 &top_bearing, 1190 &advance_height ); 1191 } 1192 else 1193 { 1194 /* Make up the distances from the horizontal header. */ 1195 1196 /* NOTE: The OS/2 values are the only `portable' ones, */ 1197 /* which is why we use them, if there is an OS/2 */ 1198 /* table in the font. Otherwise, we use the */ 1199 /* values defined in the horizontal header. */ 1200 /* */ 1201 /* NOTE2: The sTypoDescender is negative, which is why */ 1202 /* we compute the baseline-to-baseline distance */ 1203 /* here with: */ 1204 /* ascender - descender + linegap */ 1205 /* */ 1206 if ( face->os2.version != 0xFFFF ) 1207 { 1208 top_bearing = face->os2.sTypoLineGap / 2; 1209 advance_height = (FT_UShort)( face->os2.sTypoAscender - 1210 face->os2.sTypoDescender + 1211 face->os2.sTypoLineGap ); 1212 } 1213 else 1214 { 1215 top_bearing = face->horizontal.Line_Gap / 2; 1216 advance_height = (FT_UShort)( face->horizontal.Ascender + 1217 face->horizontal.Descender + 1218 face->horizontal.Line_Gap ); 1219 } 1220 } 1221 1222 /* We must adjust the top_bearing value from the bounding box given */ 1223 /* in the glyph header to te bounding box calculated with */ 1224 /* FT_Get_Outline_CBox(). */ 1225 1226 /* scale the metrics */ 1227 if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) 1228 { 1229 Top = FT_MulFix( top_bearing, y_scale ); 1230 top = FT_MulFix( top_bearing + loader->bbox.yMax, y_scale ) 1231 - bbox.yMax; 1232 advance = FT_MulFix( advance_height, y_scale ); 1233 } 1234 else 1235 { 1236 Top = top_bearing; 1237 top = top_bearing + loader->bbox.yMax - bbox.yMax; 1238 advance = advance_height; 1239 } 1240 1241 /* set the advance height in design units. It is scaled later by */ 1242 /* the base layer. */ 1243 glyph->linearVertAdvance = advance_height; 1244 1245 /* XXX: for now, we have no better algorithm for the lsb, but it */ 1246 /* should work fine. */ 1247 /* */ 1248 left = ( bbox.xMin - bbox.xMax ) / 2; 1249 1250 /* grid-fit them if necessary */ 1251 if ( IS_HINTED( loader->load_flags ) ) 1252 { 1253 left &= -64; 1254 top = ( top + 63 ) & -64; 1255 advance = ( advance + 32 ) & -64; 1256 } 1257 1258 glyph->metrics.vertBearingX = left; 1259 glyph->metrics.vertBearingY = top; 1260 glyph->metrics.vertAdvance = advance; 1261 } 1262 1263 /* adjust advance width to the value contained in the hdmx table */ 1264 if ( !face->postscript.isFixedPitch && size && 1265 IS_HINTED( loader->load_flags ) ) 1266 { 1267 FT_Byte* widths = Get_Advance_Widths( face, 1268 size->root.metrics.x_ppem ); 1269 1270 1271 if ( widths ) 1272 glyph->metrics.horiAdvance = widths[glyph_index] << 6; 1273 } 1274 1275 /* set glyph dimensions */ 1276 glyph->metrics.width = bbox.xMax - bbox.xMin; 1277 glyph->metrics.height = bbox.yMax - bbox.yMin; 1278 } 1279 1280 1281 /*************************************************************************/ 1282 /* */ 1283 /* <Function> */ 1284 /* TT_Load_Glyph */ 1285 /* */ 1286 /* <Description> */ 1287 /* A function used to load a single glyph within a given glyph slot, */ 1288 /* for a given size. */ 1289 /* */ 1290 /* <Input> */ 1291 /* glyph :: A handle to a target slot object where the glyph */ 1292 /* will be loaded. */ 1293 /* */ 1294 /* size :: A handle to the source face size at which the glyph */ 1295 /* must be scaled/loaded. */ 1296 /* */ 1297 /* glyph_index :: The index of the glyph in the font file. */ 1298 /* */ 1299 /* load_flags :: A flag indicating what to load for this glyph. The */ 1300 /* FT_LOAD_XXX constants can be used to control the */ 1301 /* glyph loading process (e.g., whether the outline */ 1302 /* should be scaled, whether to load bitmaps or not, */ 1303 /* whether to hint the outline, etc). */ 1304 /* */ 1305 /* <Return> */ 1306 /* FreeType error code. 0 means success. */ 1307 /* */ 1308 FT_LOCAL_DEF 1309 FT_Error TT_Load_Glyph( TT_Size size, 1310 TT_GlyphSlot glyph, 1311 FT_UShort glyph_index, 1312 FT_UInt load_flags ) 1313 { 1314 SFNT_Interface* sfnt; 1315 TT_Face face; 1316 FT_Stream stream; 1317 FT_Memory memory; 1318 FT_Error error; 1319 TT_Loader loader; 1320 1321 1322 face = (TT_Face)glyph->face; 1323 sfnt = (SFNT_Interface*)face->sfnt; 1324 stream = face->root.stream; 1325 memory = face->root.memory; 1326 error = 0; 1327 1328 if ( !size || ( load_flags & FT_LOAD_NO_SCALE ) || 1329 ( load_flags & FT_LOAD_NO_RECURSE ) ) 1330 { 1331 size = NULL; 1332 load_flags |= FT_LOAD_NO_SCALE | 1333 FT_LOAD_NO_HINTING | 1334 FT_LOAD_NO_BITMAP; 1335 } 1336 1337 glyph->num_subglyphs = 0; 1338 1339#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 1340 1341 /* try to load embedded bitmap if any */ 1342 /* */ 1343 /* XXX: The convention should be emphasized in */ 1344 /* the documents because it can be confusing. */ 1345 if ( size && 1346 size->strike_index != 0xFFFF && 1347 sfnt->load_sbits && 1348 ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) 1349 1350 { 1351 TT_SBit_Metrics metrics; 1352 1353 1354 error = sfnt->load_sbit_image( face, 1355 size->strike_index, 1356 glyph_index, 1357 load_flags, 1358 stream, 1359 &glyph->bitmap, 1360 &metrics ); 1361 if ( !error ) 1362 { 1363 glyph->outline.n_points = 0; 1364 glyph->outline.n_contours = 0; 1365 1366 glyph->metrics.width = (FT_Pos)metrics.width << 6; 1367 glyph->metrics.height = (FT_Pos)metrics.height << 6; 1368 1369 glyph->metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6; 1370 glyph->metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6; 1371 glyph->metrics.horiAdvance = (FT_Pos)metrics.horiAdvance << 6; 1372 1373 glyph->metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6; 1374 glyph->metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6; 1375 glyph->metrics.vertAdvance = (FT_Pos)metrics.vertAdvance << 6; 1376 1377 glyph->format = ft_glyph_format_bitmap; 1378 if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) 1379 { 1380 glyph->bitmap_left = metrics.vertBearingX; 1381 glyph->bitmap_top = metrics.vertBearingY; 1382 } 1383 else 1384 { 1385 glyph->bitmap_left = metrics.horiBearingX; 1386 glyph->bitmap_top = metrics.horiBearingY; 1387 } 1388 return error; 1389 } 1390 } 1391 1392#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ 1393 1394 /* seek to the beginning of the glyph table. For Type 42 fonts */ 1395 /* the table might be accessed from a Postscript stream or something */ 1396 /* else... */ 1397 1398 error = face->goto_table( face, TTAG_glyf, stream, 0 ); 1399 if ( error ) 1400 { 1401 FT_ERROR(( "TT_Load_Glyph: could not access glyph table\n" )); 1402 goto Exit; 1403 } 1404 1405 MEM_Set( &loader, 0, sizeof ( loader ) ); 1406 1407 /* update the glyph zone bounds */ 1408 { 1409 FT_GlyphLoader* gloader = FT_FACE_DRIVER(face)->glyph_loader; 1410 1411 1412 loader.gloader = gloader; 1413 1414 FT_GlyphLoader_Rewind( gloader ); 1415 1416 tt_prepare_zone( &loader.zone, &gloader->base, 0, 0 ); 1417 tt_prepare_zone( &loader.base, &gloader->base, 0, 0 ); 1418 } 1419 1420#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 1421 1422 if ( size ) 1423 { 1424 /* query new execution context */ 1425 loader.exec = size->debug ? size->context : TT_New_Context( face ); 1426 if ( !loader.exec ) 1427 return TT_Err_Could_Not_Find_Context; 1428 1429 TT_Load_Context( loader.exec, face, size ); 1430 loader.instructions = loader.exec->glyphIns; 1431 1432 /* load default graphics state - if needed */ 1433 if ( size->GS.instruct_control & 2 ) 1434 loader.exec->GS = tt_default_graphics_state; 1435 } 1436 1437#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ 1438 1439 /* clear all outline flags, except the `owner' one */ 1440 glyph->outline.flags = 0; 1441 1442 if ( size && size->root.metrics.y_ppem < 24 ) 1443 glyph->outline.flags |= ft_outline_high_precision; 1444 1445 /* let's initialize the rest of our loader now */ 1446 1447 loader.load_flags = load_flags; 1448 1449 loader.face = (FT_Face)face; 1450 loader.size = (FT_Size)size; 1451 loader.glyph = (FT_GlyphSlot)glyph; 1452 loader.stream = stream; 1453 1454 loader.glyf_offset = FILE_Pos(); 1455 1456#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 1457 1458 /* if the cvt program has disabled hinting, the argument */ 1459 /* is ignored. */ 1460 if ( size && ( size->GS.instruct_control & 1 ) ) 1461 loader.load_flags |= FT_LOAD_NO_HINTING; 1462 1463#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ 1464 1465 /* Main loading loop */ 1466 glyph->format = ft_glyph_format_outline; 1467 glyph->num_subglyphs = 0; 1468 error = load_truetype_glyph( &loader, glyph_index ); 1469 if ( !error ) 1470 compute_glyph_metrics( &loader, glyph_index ); 1471 1472#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER 1473 1474 if ( !size || !size->debug ) 1475 TT_Done_Context( loader.exec ); 1476 1477#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ 1478 1479 Exit: 1480 return error; 1481 } 1482 1483 1484/* END */ 1485