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| 1 /***************************************************************************/ | |
| 2 /* */ | |
| 3 /* cidload.c */ | |
| 4 /* */ | |
| 5 /* CID-keyed Type1 font loader (body). */ | |
| 6 /* */ | |
| 7 /* Copyright 1996-2006, 2009, 2011-2013 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 "../../include/ft2build.h" | |
| 20 #include "../../include/freetype/internal/ftdebug.h" | |
| 21 #include "../../include/freetype/config/ftconfig.h" | |
| 22 #include "../../include/freetype/ftmm.h" | |
| 23 #include "../../include/freetype/internal/t1types.h" | |
| 24 | |
| 25 #include "cidload.h" | |
| 26 | |
| 27 #include "ciderrs.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_cidload | |
| 38 | |
| 39 | |
| 40 /* read a single offset */ | |
| 41 FT_LOCAL_DEF( FT_Long ) | |
| 42 cid_get_offset( FT_Byte* *start, | |
| 43 FT_Byte offsize ) | |
| 44 { | |
| 45 FT_ULong result; | |
| 46 FT_Byte* p = *start; | |
| 47 | |
| 48 | |
| 49 for ( result = 0; offsize > 0; offsize-- ) | |
| 50 { | |
| 51 result <<= 8; | |
| 52 result |= *p++; | |
| 53 } | |
| 54 | |
| 55 *start = p; | |
| 56 return (FT_Long)result; | |
| 57 } | |
| 58 | |
| 59 | |
| 60 /*************************************************************************/ | |
| 61 /*************************************************************************/ | |
| 62 /***** *****/ | |
| 63 /***** TYPE 1 SYMBOL PARSING *****/ | |
| 64 /***** *****/ | |
| 65 /*************************************************************************/ | |
| 66 /*************************************************************************/ | |
| 67 | |
| 68 | |
| 69 static FT_Error | |
| 70 cid_load_keyword( CID_Face face, | |
| 71 CID_Loader* loader, | |
| 72 const T1_Field keyword ) | |
| 73 { | |
| 74 FT_Error error; | |
| 75 CID_Parser* parser = &loader->parser; | |
| 76 FT_Byte* object; | |
| 77 void* dummy_object; | |
| 78 CID_FaceInfo cid = &face->cid; | |
| 79 | |
| 80 | |
| 81 /* if the keyword has a dedicated callback, call it */ | |
| 82 if ( keyword->type == T1_FIELD_TYPE_CALLBACK ) | |
| 83 { | |
| 84 keyword->reader( (FT_Face)face, parser ); | |
| 85 error = parser->root.error; | |
| 86 goto Exit; | |
| 87 } | |
| 88 | |
| 89 /* we must now compute the address of our target object */ | |
| 90 switch ( keyword->location ) | |
| 91 { | |
| 92 case T1_FIELD_LOCATION_CID_INFO: | |
| 93 object = (FT_Byte*)cid; | |
| 94 break; | |
| 95 | |
| 96 case T1_FIELD_LOCATION_FONT_INFO: | |
| 97 object = (FT_Byte*)&cid->font_info; | |
| 98 break; | |
| 99 | |
| 100 case T1_FIELD_LOCATION_FONT_EXTRA: | |
| 101 object = (FT_Byte*)&face->font_extra; | |
| 102 break; | |
| 103 | |
| 104 case T1_FIELD_LOCATION_BBOX: | |
| 105 object = (FT_Byte*)&cid->font_bbox; | |
| 106 break; | |
| 107 | |
| 108 default: | |
| 109 { | |
| 110 CID_FaceDict dict; | |
| 111 | |
| 112 | |
| 113 if ( parser->num_dict < 0 || parser->num_dict >= cid->num_dicts ) | |
| 114 { | |
| 115 FT_ERROR(( "cid_load_keyword: invalid use of `%s'\n", | |
| 116 keyword->ident )); | |
| 117 error = FT_THROW( Syntax_Error ); | |
| 118 goto Exit; | |
| 119 } | |
| 120 | |
| 121 dict = cid->font_dicts + parser->num_dict; | |
| 122 switch ( keyword->location ) | |
| 123 { | |
| 124 case T1_FIELD_LOCATION_PRIVATE: | |
| 125 object = (FT_Byte*)&dict->private_dict; | |
| 126 break; | |
| 127 | |
| 128 default: | |
| 129 object = (FT_Byte*)dict; | |
| 130 } | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 dummy_object = object; | |
| 135 | |
| 136 /* now, load the keyword data in the object's field(s) */ | |
| 137 if ( keyword->type == T1_FIELD_TYPE_INTEGER_ARRAY || | |
| 138 keyword->type == T1_FIELD_TYPE_FIXED_ARRAY ) | |
| 139 error = cid_parser_load_field_table( &loader->parser, keyword, | |
| 140 &dummy_object ); | |
| 141 else | |
| 142 error = cid_parser_load_field( &loader->parser, | |
| 143 keyword, &dummy_object ); | |
| 144 Exit: | |
| 145 return error; | |
| 146 } | |
| 147 | |
| 148 | |
| 149 FT_CALLBACK_DEF( FT_Error ) | |
| 150 cid_parse_font_matrix( CID_Face face, | |
| 151 CID_Parser* parser ) | |
| 152 { | |
| 153 FT_Matrix* matrix; | |
| 154 FT_Vector* offset; | |
| 155 CID_FaceDict dict; | |
| 156 FT_Face root = (FT_Face)&face->root; | |
| 157 FT_Fixed temp[6]; | |
| 158 FT_Fixed temp_scale; | |
| 159 | |
| 160 | |
| 161 if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) | |
| 162 { | |
| 163 dict = face->cid.font_dicts + parser->num_dict; | |
| 164 matrix = &dict->font_matrix; | |
| 165 offset = &dict->font_offset; | |
| 166 | |
| 167 (void)cid_parser_to_fixed_array( parser, 6, temp, 3 ); | |
| 168 | |
| 169 temp_scale = FT_ABS( temp[3] ); | |
| 170 | |
| 171 /* Set Units per EM based on FontMatrix values. We set the value to */ | |
| 172 /* 1000 / temp_scale, because temp_scale was already multiplied by */ | |
| 173 /* 1000 (in t1_tofixed, from psobjs.c). */ | |
| 174 | |
| 175 root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale ); | |
| 176 | |
| 177 /* we need to scale the values by 1.0/temp[3] */ | |
| 178 if ( temp_scale != 0x10000L ) | |
| 179 { | |
| 180 temp[0] = FT_DivFix( temp[0], temp_scale ); | |
| 181 temp[1] = FT_DivFix( temp[1], temp_scale ); | |
| 182 temp[2] = FT_DivFix( temp[2], temp_scale ); | |
| 183 temp[4] = FT_DivFix( temp[4], temp_scale ); | |
| 184 temp[5] = FT_DivFix( temp[5], temp_scale ); | |
| 185 temp[3] = 0x10000L; | |
| 186 } | |
| 187 | |
| 188 matrix->xx = temp[0]; | |
| 189 matrix->yx = temp[1]; | |
| 190 matrix->xy = temp[2]; | |
| 191 matrix->yy = temp[3]; | |
| 192 | |
| 193 /* note that the font offsets are expressed in integer font units */ | |
| 194 offset->x = temp[4] >> 16; | |
| 195 offset->y = temp[5] >> 16; | |
| 196 } | |
| 197 | |
| 198 return FT_Err_Ok; /* this is a callback function; */ | |
| 199 /* we must return an error code */ | |
| 200 } | |
| 201 | |
| 202 | |
| 203 FT_CALLBACK_DEF( FT_Error ) | |
| 204 parse_fd_array( CID_Face face, | |
| 205 CID_Parser* parser ) | |
| 206 { | |
| 207 CID_FaceInfo cid = &face->cid; | |
| 208 FT_Memory memory = face->root.memory; | |
| 209 FT_Error error = FT_Err_Ok; | |
| 210 FT_Long num_dicts; | |
| 211 | |
| 212 | |
| 213 num_dicts = cid_parser_to_int( parser ); | |
| 214 | |
| 215 if ( !cid->font_dicts ) | |
| 216 { | |
| 217 FT_Int n; | |
| 218 | |
| 219 | |
| 220 if ( FT_NEW_ARRAY( cid->font_dicts, num_dicts ) ) | |
| 221 goto Exit; | |
| 222 | |
| 223 cid->num_dicts = (FT_UInt)num_dicts; | |
| 224 | |
| 225 /* don't forget to set a few defaults */ | |
| 226 for ( n = 0; n < cid->num_dicts; n++ ) | |
| 227 { | |
| 228 CID_FaceDict dict = cid->font_dicts + n; | |
| 229 | |
| 230 | |
| 231 /* default value for lenIV */ | |
| 232 dict->private_dict.lenIV = 4; | |
| 233 } | |
| 234 } | |
| 235 | |
| 236 Exit: | |
| 237 return error; | |
| 238 } | |
| 239 | |
| 240 | |
| 241 /* by mistake, `expansion_factor' appears both in PS_PrivateRec */ | |
| 242 /* and CID_FaceDictRec (both are public header files and can't */ | |
| 243 /* changed); we simply copy the value */ | |
| 244 | |
| 245 FT_CALLBACK_DEF( FT_Error ) | |
| 246 parse_expansion_factor( CID_Face face, | |
| 247 CID_Parser* parser ) | |
| 248 { | |
| 249 CID_FaceDict dict; | |
| 250 | |
| 251 | |
| 252 if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) | |
| 253 { | |
| 254 dict = face->cid.font_dicts + parser->num_dict; | |
| 255 | |
| 256 dict->expansion_factor = cid_parser_to_fixed( parser, 0 ); | |
| 257 dict->private_dict.expansion_factor = dict->expansion_factor; | |
| 258 } | |
| 259 | |
| 260 return FT_Err_Ok; | |
| 261 } | |
| 262 | |
| 263 | |
| 264 static | |
| 265 const T1_FieldRec cid_field_records[] = | |
| 266 { | |
| 267 | |
| 268 #include "cidtoken.h" | |
| 269 | |
| 270 T1_FIELD_CALLBACK( "FDArray", parse_fd_array, 0 ) | |
| 271 T1_FIELD_CALLBACK( "FontMatrix", cid_parse_font_matrix, 0 ) | |
| 272 T1_FIELD_CALLBACK( "ExpansionFactor", parse_expansion_factor, 0 ) | |
| 273 | |
| 274 { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } | |
| 275 }; | |
| 276 | |
| 277 | |
| 278 static FT_Error | |
| 279 cid_parse_dict( CID_Face face, | |
| 280 CID_Loader* loader, | |
| 281 FT_Byte* base, | |
| 282 FT_Long size ) | |
| 283 { | |
| 284 CID_Parser* parser = &loader->parser; | |
| 285 | |
| 286 | |
| 287 parser->root.cursor = base; | |
| 288 parser->root.limit = base + size; | |
| 289 parser->root.error = FT_Err_Ok; | |
| 290 | |
| 291 { | |
| 292 FT_Byte* cur = base; | |
| 293 FT_Byte* limit = cur + size; | |
| 294 | |
| 295 | |
| 296 for (;;) | |
| 297 { | |
| 298 FT_Byte* newlimit; | |
| 299 | |
| 300 | |
| 301 parser->root.cursor = cur; | |
| 302 cid_parser_skip_spaces( parser ); | |
| 303 | |
| 304 if ( parser->root.cursor >= limit ) | |
| 305 newlimit = limit - 1 - 17; | |
| 306 else | |
| 307 newlimit = parser->root.cursor - 17; | |
| 308 | |
| 309 /* look for `%ADOBeginFontDict' */ | |
| 310 for ( ; cur < newlimit; cur++ ) | |
| 311 { | |
| 312 if ( *cur == '%' && | |
| 313 ft_strncmp( (char*)cur, "%ADOBeginFontDict", 17 ) == 0 ) | |
| 314 { | |
| 315 /* if /FDArray was found, then cid->num_dicts is > 0, and */ | |
| 316 /* we can start increasing parser->num_dict */ | |
| 317 if ( face->cid.num_dicts > 0 ) | |
| 318 parser->num_dict++; | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 cur = parser->root.cursor; | |
| 323 /* no error can occur in cid_parser_skip_spaces */ | |
| 324 if ( cur >= limit ) | |
| 325 break; | |
| 326 | |
| 327 cid_parser_skip_PS_token( parser ); | |
| 328 if ( parser->root.cursor >= limit || parser->root.error ) | |
| 329 break; | |
| 330 | |
| 331 /* look for immediates */ | |
| 332 if ( *cur == '/' && cur + 2 < limit ) | |
| 333 { | |
| 334 FT_PtrDist len; | |
| 335 | |
| 336 | |
| 337 cur++; | |
| 338 len = parser->root.cursor - cur; | |
| 339 | |
| 340 if ( len > 0 && len < 22 ) | |
| 341 { | |
| 342 /* now compare the immediate name to the keyword table */ | |
| 343 T1_Field keyword = (T1_Field)cid_field_records; | |
| 344 | |
| 345 | |
| 346 for (;;) | |
| 347 { | |
| 348 FT_Byte* name; | |
| 349 | |
| 350 | |
| 351 name = (FT_Byte*)keyword->ident; | |
| 352 if ( !name ) | |
| 353 break; | |
| 354 | |
| 355 if ( cur[0] == name[0] && | |
| 356 len == (FT_PtrDist)ft_strlen( (const char*)name ) ) | |
| 357 { | |
| 358 FT_PtrDist n; | |
| 359 | |
| 360 | |
| 361 for ( n = 1; n < len; n++ ) | |
| 362 if ( cur[n] != name[n] ) | |
| 363 break; | |
| 364 | |
| 365 if ( n >= len ) | |
| 366 { | |
| 367 /* we found it - run the parsing callback */ | |
| 368 parser->root.error = cid_load_keyword( face, | |
| 369 loader, | |
| 370 keyword ); | |
| 371 if ( parser->root.error ) | |
| 372 return parser->root.error; | |
| 373 break; | |
| 374 } | |
| 375 } | |
| 376 keyword++; | |
| 377 } | |
| 378 } | |
| 379 } | |
| 380 | |
| 381 cur = parser->root.cursor; | |
| 382 } | |
| 383 } | |
| 384 return parser->root.error; | |
| 385 } | |
| 386 | |
| 387 | |
| 388 /* read the subrmap and the subrs of each font dict */ | |
| 389 static FT_Error | |
| 390 cid_read_subrs( CID_Face face ) | |
| 391 { | |
| 392 CID_FaceInfo cid = &face->cid; | |
| 393 FT_Memory memory = face->root.memory; | |
| 394 FT_Stream stream = face->cid_stream; | |
| 395 FT_Error error; | |
| 396 FT_Int n; | |
| 397 CID_Subrs subr; | |
| 398 FT_UInt max_offsets = 0; | |
| 399 FT_ULong* offsets = 0; | |
| 400 PSAux_Service psaux = (PSAux_Service)face->psaux; | |
| 401 | |
| 402 | |
| 403 if ( FT_NEW_ARRAY( face->subrs, cid->num_dicts ) ) | |
| 404 goto Exit; | |
| 405 | |
| 406 subr = face->subrs; | |
| 407 for ( n = 0; n < cid->num_dicts; n++, subr++ ) | |
| 408 { | |
| 409 CID_FaceDict dict = cid->font_dicts + n; | |
| 410 FT_Int lenIV = dict->private_dict.lenIV; | |
| 411 FT_UInt count, num_subrs = dict->num_subrs; | |
| 412 FT_ULong data_len; | |
| 413 FT_Byte* p; | |
| 414 | |
| 415 | |
| 416 /* Check for possible overflow. */ | |
| 417 if ( num_subrs == FT_UINT_MAX ) | |
| 418 { | |
| 419 error = FT_THROW( Syntax_Error ); | |
| 420 goto Fail; | |
| 421 } | |
| 422 | |
| 423 /* reallocate offsets array if needed */ | |
| 424 if ( num_subrs + 1 > max_offsets ) | |
| 425 { | |
| 426 FT_UInt new_max = FT_PAD_CEIL( num_subrs + 1, 4 ); | |
| 427 | |
| 428 | |
| 429 if ( new_max <= max_offsets ) | |
| 430 { | |
| 431 error = FT_THROW( Syntax_Error ); | |
| 432 goto Fail; | |
| 433 } | |
| 434 | |
| 435 if ( FT_RENEW_ARRAY( offsets, max_offsets, new_max ) ) | |
| 436 goto Fail; | |
| 437 | |
| 438 max_offsets = new_max; | |
| 439 } | |
| 440 | |
| 441 /* read the subrmap's offsets */ | |
| 442 if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) || | |
| 443 FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) ) | |
| 444 goto Fail; | |
| 445 | |
| 446 p = (FT_Byte*)stream->cursor; | |
| 447 for ( count = 0; count <= num_subrs; count++ ) | |
| 448 offsets[count] = cid_get_offset( &p, (FT_Byte)dict->sd_bytes ); | |
| 449 | |
| 450 FT_FRAME_EXIT(); | |
| 451 | |
| 452 /* offsets must be ordered */ | |
| 453 for ( count = 1; count <= num_subrs; count++ ) | |
| 454 if ( offsets[count - 1] > offsets[count] ) | |
| 455 goto Fail; | |
| 456 | |
| 457 /* now, compute the size of subrs charstrings, */ | |
| 458 /* allocate, and read them */ | |
| 459 data_len = offsets[num_subrs] - offsets[0]; | |
| 460 | |
| 461 if ( FT_NEW_ARRAY( subr->code, num_subrs + 1 ) || | |
| 462 FT_ALLOC( subr->code[0], data_len ) ) | |
| 463 goto Fail; | |
| 464 | |
| 465 if ( FT_STREAM_SEEK( cid->data_offset + offsets[0] ) || | |
| 466 FT_STREAM_READ( subr->code[0], data_len ) ) | |
| 467 goto Fail; | |
| 468 | |
| 469 /* set up pointers */ | |
| 470 for ( count = 1; count <= num_subrs; count++ ) | |
| 471 { | |
| 472 FT_ULong len; | |
| 473 | |
| 474 | |
| 475 len = offsets[count] - offsets[count - 1]; | |
| 476 subr->code[count] = subr->code[count - 1] + len; | |
| 477 } | |
| 478 | |
| 479 /* decrypt subroutines, but only if lenIV >= 0 */ | |
| 480 if ( lenIV >= 0 ) | |
| 481 { | |
| 482 for ( count = 0; count < num_subrs; count++ ) | |
| 483 { | |
| 484 FT_ULong len; | |
| 485 | |
| 486 | |
| 487 len = offsets[count + 1] - offsets[count]; | |
| 488 psaux->t1_decrypt( subr->code[count], len, 4330 ); | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 subr->num_subrs = num_subrs; | |
| 493 } | |
| 494 | |
| 495 Exit: | |
| 496 FT_FREE( offsets ); | |
| 497 return error; | |
| 498 | |
| 499 Fail: | |
| 500 if ( face->subrs ) | |
| 501 { | |
| 502 for ( n = 0; n < cid->num_dicts; n++ ) | |
| 503 { | |
| 504 if ( face->subrs[n].code ) | |
| 505 FT_FREE( face->subrs[n].code[0] ); | |
| 506 | |
| 507 FT_FREE( face->subrs[n].code ); | |
| 508 } | |
| 509 FT_FREE( face->subrs ); | |
| 510 } | |
| 511 goto Exit; | |
| 512 } | |
| 513 | |
| 514 | |
| 515 static void | |
| 516 cid_init_loader( CID_Loader* loader, | |
| 517 CID_Face face ) | |
| 518 { | |
| 519 FT_UNUSED( face ); | |
| 520 | |
| 521 FT_MEM_ZERO( loader, sizeof ( *loader ) ); | |
| 522 } | |
| 523 | |
| 524 | |
| 525 static void | |
| 526 cid_done_loader( CID_Loader* loader ) | |
| 527 { | |
| 528 CID_Parser* parser = &loader->parser; | |
| 529 | |
| 530 | |
| 531 /* finalize parser */ | |
| 532 cid_parser_done( parser ); | |
| 533 } | |
| 534 | |
| 535 | |
| 536 static FT_Error | |
| 537 cid_hex_to_binary( FT_Byte* data, | |
| 538 FT_Long data_len, | |
| 539 FT_ULong offset, | |
| 540 CID_Face face ) | |
| 541 { | |
| 542 FT_Stream stream = face->root.stream; | |
| 543 FT_Error error; | |
| 544 | |
| 545 FT_Byte buffer[256]; | |
| 546 FT_Byte *p, *plimit; | |
| 547 FT_Byte *d, *dlimit; | |
| 548 FT_Byte val; | |
| 549 | |
| 550 FT_Bool upper_nibble, done; | |
| 551 | |
| 552 | |
| 553 if ( FT_STREAM_SEEK( offset ) ) | |
| 554 goto Exit; | |
| 555 | |
| 556 d = data; | |
| 557 dlimit = d + data_len; | |
| 558 p = buffer; | |
| 559 plimit = p; | |
| 560 | |
| 561 upper_nibble = 1; | |
| 562 done = 0; | |
| 563 | |
| 564 while ( d < dlimit ) | |
| 565 { | |
| 566 if ( p >= plimit ) | |
| 567 { | |
| 568 FT_ULong oldpos = FT_STREAM_POS(); | |
| 569 FT_ULong size = stream->size - oldpos; | |
| 570 | |
| 571 | |
| 572 if ( size == 0 ) | |
| 573 { | |
| 574 error = FT_THROW( Syntax_Error ); | |
| 575 goto Exit; | |
| 576 } | |
| 577 | |
| 578 if ( FT_STREAM_READ( buffer, 256 > size ? size : 256 ) ) | |
| 579 goto Exit; | |
| 580 p = buffer; | |
| 581 plimit = p + FT_STREAM_POS() - oldpos; | |
| 582 } | |
| 583 | |
| 584 if ( ft_isdigit( *p ) ) | |
| 585 val = (FT_Byte)( *p - '0' ); | |
| 586 else if ( *p >= 'a' && *p <= 'f' ) | |
| 587 val = (FT_Byte)( *p - 'a' ); | |
| 588 else if ( *p >= 'A' && *p <= 'F' ) | |
| 589 val = (FT_Byte)( *p - 'A' + 10 ); | |
| 590 else if ( *p == ' ' || | |
| 591 *p == '\t' || | |
| 592 *p == '\r' || | |
| 593 *p == '\n' || | |
| 594 *p == '\f' || | |
| 595 *p == '\0' ) | |
| 596 { | |
| 597 p++; | |
| 598 continue; | |
| 599 } | |
| 600 else if ( *p == '>' ) | |
| 601 { | |
| 602 val = 0; | |
| 603 done = 1; | |
| 604 } | |
| 605 else | |
| 606 { | |
| 607 error = FT_THROW( Syntax_Error ); | |
| 608 goto Exit; | |
| 609 } | |
| 610 | |
| 611 if ( upper_nibble ) | |
| 612 *d = (FT_Byte)( val << 4 ); | |
| 613 else | |
| 614 { | |
| 615 *d = (FT_Byte)( *d + val ); | |
| 616 d++; | |
| 617 } | |
| 618 | |
| 619 upper_nibble = (FT_Byte)( 1 - upper_nibble ); | |
| 620 | |
| 621 if ( done ) | |
| 622 break; | |
| 623 | |
| 624 p++; | |
| 625 } | |
| 626 | |
| 627 error = FT_Err_Ok; | |
| 628 | |
| 629 Exit: | |
| 630 return error; | |
| 631 } | |
| 632 | |
| 633 | |
| 634 FT_LOCAL_DEF( FT_Error ) | |
| 635 cid_face_open( CID_Face face, | |
| 636 FT_Int face_index ) | |
| 637 { | |
| 638 CID_Loader loader; | |
| 639 CID_Parser* parser; | |
| 640 FT_Memory memory = face->root.memory; | |
| 641 FT_Error error; | |
| 642 | |
| 643 | |
| 644 cid_init_loader( &loader, face ); | |
| 645 | |
| 646 parser = &loader.parser; | |
| 647 error = cid_parser_new( parser, face->root.stream, face->root.memory, | |
| 648 (PSAux_Service)face->psaux ); | |
| 649 if ( error ) | |
| 650 goto Exit; | |
| 651 | |
| 652 error = cid_parse_dict( face, &loader, | |
| 653 parser->postscript, | |
| 654 parser->postscript_len ); | |
| 655 if ( error ) | |
| 656 goto Exit; | |
| 657 | |
| 658 if ( face_index < 0 ) | |
| 659 goto Exit; | |
| 660 | |
| 661 if ( FT_NEW( face->cid_stream ) ) | |
| 662 goto Exit; | |
| 663 | |
| 664 if ( parser->binary_length ) | |
| 665 { | |
| 666 /* we must convert the data section from hexadecimal to binary */ | |
| 667 if ( FT_ALLOC( face->binary_data, parser->binary_length ) || | |
| 668 cid_hex_to_binary( face->binary_data, parser->binary_length, | |
| 669 parser->data_offset, face ) ) | |
| 670 goto Exit; | |
| 671 | |
| 672 FT_Stream_OpenMemory( face->cid_stream, | |
| 673 face->binary_data, parser->binary_length ); | |
| 674 face->cid.data_offset = 0; | |
| 675 } | |
| 676 else | |
| 677 { | |
| 678 *face->cid_stream = *face->root.stream; | |
| 679 face->cid.data_offset = loader.parser.data_offset; | |
| 680 } | |
| 681 | |
| 682 error = cid_read_subrs( face ); | |
| 683 | |
| 684 Exit: | |
| 685 cid_done_loader( &loader ); | |
| 686 return error; | |
| 687 } | |
| 688 | |
| 689 | |
| 690 /* END */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 815103002:
Update freetype to 2.5.4. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master