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| 1 /***************************************************************************/ | |
| 2 /* */ | |
| 3 /* cidobjs.c */ | |
| 4 /* */ | |
| 5 /* CID objects manager (body). */ | |
| 6 /* */ | |
| 7 /* Copyright 1996-2006, 2008, 2010-2011, 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/internal/ftstream.h" | |
| 22 | |
| 23 #include "cidgload.h" | |
| 24 #include "cidload.h" | |
| 25 | |
| 26 #include "../../include/freetype/internal/services/svpscmap.h" | |
| 27 #include "../../include/freetype/internal/psaux.h" | |
| 28 #include "../../include/freetype/internal/pshints.h" | |
| 29 | |
| 30 #include "ciderrs.h" | |
| 31 | |
| 32 | |
| 33 /*************************************************************************/ | |
| 34 /* */ | |
| 35 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ | |
| 36 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ | |
| 37 /* messages during execution. */ | |
| 38 /* */ | |
| 39 #undef FT_COMPONENT | |
| 40 #define FT_COMPONENT trace_cidobjs | |
| 41 | |
| 42 | |
| 43 /*************************************************************************/ | |
| 44 /* */ | |
| 45 /* SLOT FUNCTIONS */ | |
| 46 /* */ | |
| 47 /*************************************************************************/ | |
| 48 | |
| 49 FT_LOCAL_DEF( void ) | |
| 50 cid_slot_done( FT_GlyphSlot slot ) | |
| 51 { | |
| 52 slot->internal->glyph_hints = 0; | |
| 53 } | |
| 54 | |
| 55 | |
| 56 FT_LOCAL_DEF( FT_Error ) | |
| 57 cid_slot_init( FT_GlyphSlot slot ) | |
| 58 { | |
| 59 CID_Face face; | |
| 60 PSHinter_Service pshinter; | |
| 61 | |
| 62 | |
| 63 face = (CID_Face)slot->face; | |
| 64 pshinter = (PSHinter_Service)face->pshinter; | |
| 65 | |
| 66 if ( pshinter ) | |
| 67 { | |
| 68 FT_Module module; | |
| 69 | |
| 70 | |
| 71 module = FT_Get_Module( slot->face->driver->root.library, | |
| 72 "pshinter" ); | |
| 73 if ( module ) | |
| 74 { | |
| 75 T1_Hints_Funcs funcs; | |
| 76 | |
| 77 | |
| 78 funcs = pshinter->get_t1_funcs( module ); | |
| 79 slot->internal->glyph_hints = (void*)funcs; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 return 0; | |
| 84 } | |
| 85 | |
| 86 | |
| 87 /*************************************************************************/ | |
| 88 /* */ | |
| 89 /* SIZE FUNCTIONS */ | |
| 90 /* */ | |
| 91 /*************************************************************************/ | |
| 92 | |
| 93 | |
| 94 static PSH_Globals_Funcs | |
| 95 cid_size_get_globals_funcs( CID_Size size ) | |
| 96 { | |
| 97 CID_Face face = (CID_Face)size->root.face; | |
| 98 PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; | |
| 99 FT_Module module; | |
| 100 | |
| 101 | |
| 102 module = FT_Get_Module( size->root.face->driver->root.library, | |
| 103 "pshinter" ); | |
| 104 return ( module && pshinter && pshinter->get_globals_funcs ) | |
| 105 ? pshinter->get_globals_funcs( module ) | |
| 106 : 0; | |
| 107 } | |
| 108 | |
| 109 | |
| 110 FT_LOCAL_DEF( void ) | |
| 111 cid_size_done( FT_Size cidsize ) /* CID_Size */ | |
| 112 { | |
| 113 CID_Size size = (CID_Size)cidsize; | |
| 114 | |
| 115 | |
| 116 if ( cidsize->internal ) | |
| 117 { | |
| 118 PSH_Globals_Funcs funcs; | |
| 119 | |
| 120 | |
| 121 funcs = cid_size_get_globals_funcs( size ); | |
| 122 if ( funcs ) | |
| 123 funcs->destroy( (PSH_Globals)cidsize->internal ); | |
| 124 | |
| 125 cidsize->internal = 0; | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 | |
| 130 FT_LOCAL_DEF( FT_Error ) | |
| 131 cid_size_init( FT_Size cidsize ) /* CID_Size */ | |
| 132 { | |
| 133 CID_Size size = (CID_Size)cidsize; | |
| 134 FT_Error error = FT_Err_Ok; | |
| 135 PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size ); | |
| 136 | |
| 137 | |
| 138 if ( funcs ) | |
| 139 { | |
| 140 PSH_Globals globals; | |
| 141 CID_Face face = (CID_Face)cidsize->face; | |
| 142 CID_FaceDict dict = face->cid.font_dicts + face->root.face_index; | |
| 143 PS_Private priv = &dict->private_dict; | |
| 144 | |
| 145 | |
| 146 error = funcs->create( cidsize->face->memory, priv, &globals ); | |
| 147 if ( !error ) | |
| 148 cidsize->internal = (FT_Size_Internal)(void*)globals; | |
| 149 } | |
| 150 | |
| 151 return error; | |
| 152 } | |
| 153 | |
| 154 | |
| 155 FT_LOCAL( FT_Error ) | |
| 156 cid_size_request( FT_Size size, | |
| 157 FT_Size_Request req ) | |
| 158 { | |
| 159 PSH_Globals_Funcs funcs; | |
| 160 | |
| 161 | |
| 162 FT_Request_Metrics( size->face, req ); | |
| 163 | |
| 164 funcs = cid_size_get_globals_funcs( (CID_Size)size ); | |
| 165 | |
| 166 if ( funcs ) | |
| 167 funcs->set_scale( (PSH_Globals)size->internal, | |
| 168 size->metrics.x_scale, | |
| 169 size->metrics.y_scale, | |
| 170 0, 0 ); | |
| 171 | |
| 172 return FT_Err_Ok; | |
| 173 } | |
| 174 | |
| 175 | |
| 176 /*************************************************************************/ | |
| 177 /* */ | |
| 178 /* FACE FUNCTIONS */ | |
| 179 /* */ | |
| 180 /*************************************************************************/ | |
| 181 | |
| 182 /*************************************************************************/ | |
| 183 /* */ | |
| 184 /* <Function> */ | |
| 185 /* cid_face_done */ | |
| 186 /* */ | |
| 187 /* <Description> */ | |
| 188 /* Finalizes a given face object. */ | |
| 189 /* */ | |
| 190 /* <Input> */ | |
| 191 /* face :: A pointer to the face object to destroy. */ | |
| 192 /* */ | |
| 193 FT_LOCAL_DEF( void ) | |
| 194 cid_face_done( FT_Face cidface ) /* CID_Face */ | |
| 195 { | |
| 196 CID_Face face = (CID_Face)cidface; | |
| 197 FT_Memory memory; | |
| 198 CID_FaceInfo cid; | |
| 199 PS_FontInfo info; | |
| 200 | |
| 201 | |
| 202 if ( !face ) | |
| 203 return; | |
| 204 | |
| 205 cid = &face->cid; | |
| 206 info = &cid->font_info; | |
| 207 memory = cidface->memory; | |
| 208 | |
| 209 /* release subrs */ | |
| 210 if ( face->subrs ) | |
| 211 { | |
| 212 FT_Int n; | |
| 213 | |
| 214 | |
| 215 for ( n = 0; n < cid->num_dicts; n++ ) | |
| 216 { | |
| 217 CID_Subrs subr = face->subrs + n; | |
| 218 | |
| 219 | |
| 220 if ( subr->code ) | |
| 221 { | |
| 222 FT_FREE( subr->code[0] ); | |
| 223 FT_FREE( subr->code ); | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 FT_FREE( face->subrs ); | |
| 228 } | |
| 229 | |
| 230 /* release FontInfo strings */ | |
| 231 FT_FREE( info->version ); | |
| 232 FT_FREE( info->notice ); | |
| 233 FT_FREE( info->full_name ); | |
| 234 FT_FREE( info->family_name ); | |
| 235 FT_FREE( info->weight ); | |
| 236 | |
| 237 /* release font dictionaries */ | |
| 238 FT_FREE( cid->font_dicts ); | |
| 239 cid->num_dicts = 0; | |
| 240 | |
| 241 /* release other strings */ | |
| 242 FT_FREE( cid->cid_font_name ); | |
| 243 FT_FREE( cid->registry ); | |
| 244 FT_FREE( cid->ordering ); | |
| 245 | |
| 246 cidface->family_name = 0; | |
| 247 cidface->style_name = 0; | |
| 248 | |
| 249 FT_FREE( face->binary_data ); | |
| 250 FT_FREE( face->cid_stream ); | |
| 251 } | |
| 252 | |
| 253 | |
| 254 /*************************************************************************/ | |
| 255 /* */ | |
| 256 /* <Function> */ | |
| 257 /* cid_face_init */ | |
| 258 /* */ | |
| 259 /* <Description> */ | |
| 260 /* Initializes a given CID face object. */ | |
| 261 /* */ | |
| 262 /* <Input> */ | |
| 263 /* stream :: The source font stream. */ | |
| 264 /* */ | |
| 265 /* face_index :: The index of the font face in the resource. */ | |
| 266 /* */ | |
| 267 /* num_params :: Number of additional generic parameters. Ignored. */ | |
| 268 /* */ | |
| 269 /* params :: Additional generic parameters. Ignored. */ | |
| 270 /* */ | |
| 271 /* <InOut> */ | |
| 272 /* face :: The newly built face object. */ | |
| 273 /* */ | |
| 274 /* <Return> */ | |
| 275 /* FreeType error code. 0 means success. */ | |
| 276 /* */ | |
| 277 FT_LOCAL_DEF( FT_Error ) | |
| 278 cid_face_init( FT_Stream stream, | |
| 279 FT_Face cidface, /* CID_Face */ | |
| 280 FT_Int face_index, | |
| 281 FT_Int num_params, | |
| 282 FT_Parameter* params ) | |
| 283 { | |
| 284 CID_Face face = (CID_Face)cidface; | |
| 285 FT_Error error; | |
| 286 PSAux_Service psaux; | |
| 287 PSHinter_Service pshinter; | |
| 288 | |
| 289 FT_UNUSED( num_params ); | |
| 290 FT_UNUSED( params ); | |
| 291 FT_UNUSED( stream ); | |
| 292 | |
| 293 | |
| 294 cidface->num_faces = 1; | |
| 295 | |
| 296 psaux = (PSAux_Service)face->psaux; | |
| 297 if ( !psaux ) | |
| 298 { | |
| 299 psaux = (PSAux_Service)FT_Get_Module_Interface( | |
| 300 FT_FACE_LIBRARY( face ), "psaux" ); | |
| 301 | |
| 302 if ( !psaux ) | |
| 303 { | |
| 304 FT_ERROR(( "cid_face_init: cannot access `psaux' module\n" )); | |
| 305 error = FT_THROW( Missing_Module ); | |
| 306 goto Exit; | |
| 307 } | |
| 308 | |
| 309 face->psaux = psaux; | |
| 310 } | |
| 311 | |
| 312 pshinter = (PSHinter_Service)face->pshinter; | |
| 313 if ( !pshinter ) | |
| 314 { | |
| 315 pshinter = (PSHinter_Service)FT_Get_Module_Interface( | |
| 316 FT_FACE_LIBRARY( face ), "pshinter" ); | |
| 317 | |
| 318 face->pshinter = pshinter; | |
| 319 } | |
| 320 | |
| 321 FT_TRACE2(( "CID driver\n" )); | |
| 322 | |
| 323 /* open the tokenizer; this will also check the font format */ | |
| 324 if ( FT_STREAM_SEEK( 0 ) ) | |
| 325 goto Exit; | |
| 326 | |
| 327 error = cid_face_open( face, face_index ); | |
| 328 if ( error ) | |
| 329 goto Exit; | |
| 330 | |
| 331 /* if we just wanted to check the format, leave successfully now */ | |
| 332 if ( face_index < 0 ) | |
| 333 goto Exit; | |
| 334 | |
| 335 /* check the face index */ | |
| 336 /* XXX: handle CID fonts with more than a single face */ | |
| 337 if ( face_index != 0 ) | |
| 338 { | |
| 339 FT_ERROR(( "cid_face_init: invalid face index\n" )); | |
| 340 error = FT_THROW( Invalid_Argument ); | |
| 341 goto Exit; | |
| 342 } | |
| 343 | |
| 344 /* now load the font program into the face object */ | |
| 345 | |
| 346 /* initialize the face object fields */ | |
| 347 | |
| 348 /* set up root face fields */ | |
| 349 { | |
| 350 CID_FaceInfo cid = &face->cid; | |
| 351 PS_FontInfo info = &cid->font_info; | |
| 352 | |
| 353 | |
| 354 cidface->num_glyphs = cid->cid_count; | |
| 355 cidface->num_charmaps = 0; | |
| 356 | |
| 357 cidface->face_index = face_index; | |
| 358 cidface->face_flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ | |
| 359 FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ | |
| 360 FT_FACE_FLAG_HINTER; /* has native hinter */ | |
| 361 | |
| 362 if ( info->is_fixed_pitch ) | |
| 363 cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; | |
| 364 | |
| 365 /* XXX: TODO: add kerning with .afm support */ | |
| 366 | |
| 367 /* get style name -- be careful, some broken fonts only */ | |
| 368 /* have a /FontName dictionary entry! */ | |
| 369 cidface->family_name = info->family_name; | |
| 370 /* assume "Regular" style if we don't know better */ | |
| 371 cidface->style_name = (char *)"Regular"; | |
| 372 if ( cidface->family_name ) | |
| 373 { | |
| 374 char* full = info->full_name; | |
| 375 char* family = cidface->family_name; | |
| 376 | |
| 377 | |
| 378 if ( full ) | |
| 379 { | |
| 380 while ( *full ) | |
| 381 { | |
| 382 if ( *full == *family ) | |
| 383 { | |
| 384 family++; | |
| 385 full++; | |
| 386 } | |
| 387 else | |
| 388 { | |
| 389 if ( *full == ' ' || *full == '-' ) | |
| 390 full++; | |
| 391 else if ( *family == ' ' || *family == '-' ) | |
| 392 family++; | |
| 393 else | |
| 394 { | |
| 395 if ( !*family ) | |
| 396 cidface->style_name = full; | |
| 397 break; | |
| 398 } | |
| 399 } | |
| 400 } | |
| 401 } | |
| 402 } | |
| 403 else | |
| 404 { | |
| 405 /* do we have a `/FontName'? */ | |
| 406 if ( cid->cid_font_name ) | |
| 407 cidface->family_name = cid->cid_font_name; | |
| 408 } | |
| 409 | |
| 410 /* compute style flags */ | |
| 411 cidface->style_flags = 0; | |
| 412 if ( info->italic_angle ) | |
| 413 cidface->style_flags |= FT_STYLE_FLAG_ITALIC; | |
| 414 if ( info->weight ) | |
| 415 { | |
| 416 if ( !ft_strcmp( info->weight, "Bold" ) || | |
| 417 !ft_strcmp( info->weight, "Black" ) ) | |
| 418 cidface->style_flags |= FT_STYLE_FLAG_BOLD; | |
| 419 } | |
| 420 | |
| 421 /* no embedded bitmap support */ | |
| 422 cidface->num_fixed_sizes = 0; | |
| 423 cidface->available_sizes = 0; | |
| 424 | |
| 425 cidface->bbox.xMin = cid->font_bbox.xMin >> 16; | |
| 426 cidface->bbox.yMin = cid->font_bbox.yMin >> 16; | |
| 427 /* no `U' suffix here to 0xFFFF! */ | |
| 428 cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16; | |
| 429 cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16; | |
| 430 | |
| 431 if ( !cidface->units_per_EM ) | |
| 432 cidface->units_per_EM = 1000; | |
| 433 | |
| 434 cidface->ascender = (FT_Short)( cidface->bbox.yMax ); | |
| 435 cidface->descender = (FT_Short)( cidface->bbox.yMin ); | |
| 436 | |
| 437 cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 ); | |
| 438 if ( cidface->height < cidface->ascender - cidface->descender ) | |
| 439 cidface->height = (FT_Short)( cidface->ascender - cidface->descender ); | |
| 440 | |
| 441 cidface->underline_position = (FT_Short)info->underline_position; | |
| 442 cidface->underline_thickness = (FT_Short)info->underline_thickness; | |
| 443 } | |
| 444 | |
| 445 Exit: | |
| 446 return error; | |
| 447 } | |
| 448 | |
| 449 | |
| 450 /*************************************************************************/ | |
| 451 /* */ | |
| 452 /* <Function> */ | |
| 453 /* cid_driver_init */ | |
| 454 /* */ | |
| 455 /* <Description> */ | |
| 456 /* Initializes a given CID driver object. */ | |
| 457 /* */ | |
| 458 /* <Input> */ | |
| 459 /* driver :: A handle to the target driver object. */ | |
| 460 /* */ | |
| 461 /* <Return> */ | |
| 462 /* FreeType error code. 0 means success. */ | |
| 463 /* */ | |
| 464 FT_LOCAL_DEF( FT_Error ) | |
| 465 cid_driver_init( FT_Module driver ) | |
| 466 { | |
| 467 FT_UNUSED( driver ); | |
| 468 | |
| 469 return FT_Err_Ok; | |
| 470 } | |
| 471 | |
| 472 | |
| 473 /*************************************************************************/ | |
| 474 /* */ | |
| 475 /* <Function> */ | |
| 476 /* cid_driver_done */ | |
| 477 /* */ | |
| 478 /* <Description> */ | |
| 479 /* Finalizes a given CID driver. */ | |
| 480 /* */ | |
| 481 /* <Input> */ | |
| 482 /* driver :: A handle to the target CID driver. */ | |
| 483 /* */ | |
| 484 FT_LOCAL_DEF( void ) | |
| 485 cid_driver_done( FT_Module driver ) | |
| 486 { | |
| 487 FT_UNUSED( driver ); | |
| 488 } | |
| 489 | |
| 490 | |
| 491 /* END */ | |
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Chromium Code Reviews
Issue 815103002:
Update freetype to 2.5.4. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master