1 /***************************************************************************/ 2 /* */ 3 /* ftobjs.h */ 4 /* */ 5 /* The FreeType private base classes (specification). */ 6 /* */ 7 /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008 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 /*************************************************************************/ 20 /* */ 21 /* This file contains the definition of all internal FreeType classes. */ 22 /* */ 23 /*************************************************************************/ 24 25 26 #ifndef __FTOBJS_H__ 27 #define __FTOBJS_H__ 28 29 #include <ft2build.h> 30 #include FT_RENDER_H 31 #include FT_SIZES_H 32 #include FT_LCD_FILTER_H 33 #include FT_INTERNAL_MEMORY_H 34 #include FT_INTERNAL_GLYPH_LOADER_H 35 #include FT_INTERNAL_DRIVER_H 36 #include FT_INTERNAL_AUTOHINT_H 37 #include FT_INTERNAL_SERVICE_H 38 #include FT_INTERNAL_PIC_H 39 40 #ifdef FT_CONFIG_OPTION_INCREMENTAL 41 #include FT_INCREMENTAL_H 42 #endif 43 44 45 FT_BEGIN_HEADER 46 47 48 /*************************************************************************/ 49 /* */ 50 /* Some generic definitions. */ 51 /* */ 52 #ifndef TRUE 53 #define TRUE 1 54 #endif 55 56 #ifndef FALSE 57 #define FALSE 0 58 #endif 59 60 #ifndef NULL 61 #define NULL (void*)0 62 #endif 63 64 65 /*************************************************************************/ 66 /* */ 67 /* The min and max functions missing in C. As usual, be careful not to */ 68 /* write things like FT_MIN( a++, b++ ) to avoid side effects. */ 69 /* */ 70 #define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) ) 71 #define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) ) 72 73 #define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) ) 74 75 76 #define FT_PAD_FLOOR( x, n ) ( (x) & ~((n)-1) ) 77 #define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + ((n)/2), n ) 78 #define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + ((n)-1), n ) 79 80 #define FT_PIX_FLOOR( x ) ( (x) & ~63 ) 81 #define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 ) 82 #define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 ) 83 84 85 /* 86 * Return the highest power of 2 that is <= value; this correspond to 87 * the highest bit in a given 32-bit value. 88 */ 89 FT_BASE( FT_UInt32 ) 90 ft_highpow2( FT_UInt32 value ); 91 92 93 /* 94 * character classification functions -- since these are used to parse 95 * font files, we must not use those in <ctypes.h> which are 96 * locale-dependent 97 */ 98 #define ft_isdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U ) 99 100 #define ft_isxdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U || \ 101 ( (unsigned)(x) - 'a' ) < 6U || \ 102 ( (unsigned)(x) - 'A' ) < 6U ) 103 104 /* the next two macros assume ASCII representation */ 105 #define ft_isupper( x ) ( ( (unsigned)(x) - 'A' ) < 26U ) 106 #define ft_islower( x ) ( ( (unsigned)(x) - 'a' ) < 26U ) 107 108 #define ft_isalpha( x ) ( ft_isupper( x ) || ft_islower( x ) ) 109 #define ft_isalnum( x ) ( ft_isdigit( x ) || ft_isalpha( x ) ) 110 111 112 /*************************************************************************/ 113 /*************************************************************************/ 114 /*************************************************************************/ 115 /**** ****/ 116 /**** ****/ 117 /**** C H A R M A P S ****/ 118 /**** ****/ 119 /**** ****/ 120 /*************************************************************************/ 121 /*************************************************************************/ 122 /*************************************************************************/ 123 124 /* handle to internal charmap object */ 125 typedef struct FT_CMapRec_* FT_CMap; 126 127 /* handle to charmap class structure */ 128 typedef const struct FT_CMap_ClassRec_* FT_CMap_Class; 129 130 /* internal charmap object structure */ 131 typedef struct FT_CMapRec_ 132 { 133 FT_CharMapRec charmap; 134 FT_CMap_Class clazz; 135 136 } FT_CMapRec; 137 138 /* typecase any pointer to a charmap handle */ 139 #define FT_CMAP( x ) ((FT_CMap)( x )) 140 141 /* obvious macros */ 142 #define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id 143 #define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id 144 #define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding 145 #define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face 146 147 148 /* class method definitions */ 149 typedef FT_Error 150 (*FT_CMap_InitFunc)( FT_CMap cmap, 151 FT_Pointer init_data ); 152 153 typedef void 154 (*FT_CMap_DoneFunc)( FT_CMap cmap ); 155 156 typedef FT_UInt 157 (*FT_CMap_CharIndexFunc)( FT_CMap cmap, 158 FT_UInt32 char_code ); 159 160 typedef FT_UInt 161 (*FT_CMap_CharNextFunc)( FT_CMap cmap, 162 FT_UInt32 *achar_code ); 163 164 typedef FT_UInt 165 (*FT_CMap_CharVarIndexFunc)( FT_CMap cmap, 166 FT_CMap unicode_cmap, 167 FT_UInt32 char_code, 168 FT_UInt32 variant_selector ); 169 170 typedef FT_Bool 171 (*FT_CMap_CharVarIsDefaultFunc)( FT_CMap cmap, 172 FT_UInt32 char_code, 173 FT_UInt32 variant_selector ); 174 175 typedef FT_UInt32 * 176 (*FT_CMap_VariantListFunc)( FT_CMap cmap, 177 FT_Memory mem ); 178 179 typedef FT_UInt32 * 180 (*FT_CMap_CharVariantListFunc)( FT_CMap cmap, 181 FT_Memory mem, 182 FT_UInt32 char_code ); 183 184 typedef FT_UInt32 * 185 (*FT_CMap_VariantCharListFunc)( FT_CMap cmap, 186 FT_Memory mem, 187 FT_UInt32 variant_selector ); 188 189 190 typedef struct FT_CMap_ClassRec_ 191 { 192 FT_ULong size; 193 FT_CMap_InitFunc init; 194 FT_CMap_DoneFunc done; 195 FT_CMap_CharIndexFunc char_index; 196 FT_CMap_CharNextFunc char_next; 197 198 /* Subsequent entries are special ones for format 14 -- the variant */ 199 /* selector subtable which behaves like no other */ 200 201 FT_CMap_CharVarIndexFunc char_var_index; 202 FT_CMap_CharVarIsDefaultFunc char_var_default; 203 FT_CMap_VariantListFunc variant_list; 204 FT_CMap_CharVariantListFunc charvariant_list; 205 FT_CMap_VariantCharListFunc variantchar_list; 206 207 } FT_CMap_ClassRec; 208 209 #ifndef FT_CONFIG_OPTION_PIC 210 211 #define FT_DECLARE_CMAP_CLASS(class_) \ 212 FT_CALLBACK_TABLE const FT_CMap_ClassRec class_; 213 214 #define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \ 215 char_next_, char_var_index_, char_var_default_, variant_list_, \ 216 charvariant_list_, variantchar_list_) \ 217 FT_CALLBACK_TABLE_DEF \ 218 const FT_CMap_ClassRec class_ = \ 219 { \ 220 size_, init_, done_, char_index_, char_next_, char_var_index_, \ 221 char_var_default_, variant_list_, charvariant_list_, variantchar_list_ \ 222 }; 223 #else /* FT_CONFIG_OPTION_PIC */ 224 225 #define FT_DECLARE_CMAP_CLASS(class_) \ 226 void FT_Init_Class_##class_( FT_Library library, FT_CMap_ClassRec* clazz); 227 228 #define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \ 229 char_next_, char_var_index_, char_var_default_, variant_list_, \ 230 charvariant_list_, variantchar_list_) \ 231 void \ 232 FT_Init_Class_##class_( FT_Library library, \ 233 FT_CMap_ClassRec* clazz) \ 234 { \ 235 FT_UNUSED(library); \ 236 clazz->size = size_; \ 237 clazz->init = init_; \ 238 clazz->done = done_; \ 239 clazz->char_index = char_index_; \ 240 clazz->char_next = char_next_; \ 241 clazz->char_var_index = char_var_index_; \ 242 clazz->char_var_default = char_var_default_; \ 243 clazz->variant_list = variant_list_; \ 244 clazz->charvariant_list = charvariant_list_; \ 245 clazz->variantchar_list = variantchar_list_; \ 246 } 247 #endif /* FT_CONFIG_OPTION_PIC */ 248 249 /* create a new charmap and add it to charmap->face */ 250 FT_BASE( FT_Error ) 251 FT_CMap_New( FT_CMap_Class clazz, 252 FT_Pointer init_data, 253 FT_CharMap charmap, 254 FT_CMap *acmap ); 255 256 /* destroy a charmap and remove it from face's list */ 257 FT_BASE( void ) 258 FT_CMap_Done( FT_CMap cmap ); 259 260 261 /*************************************************************************/ 262 /* */ 263 /* <Struct> */ 264 /* FT_Face_InternalRec */ 265 /* */ 266 /* <Description> */ 267 /* This structure contains the internal fields of each FT_Face */ 268 /* object. These fields may change between different releases of */ 269 /* FreeType. */ 270 /* */ 271 /* <Fields> */ 272 /* max_points :: */ 273 /* The maximal number of points used to store the vectorial outline */ 274 /* of any glyph in this face. If this value cannot be known in */ 275 /* advance, or if the face isn't scalable, this should be set to 0. */ 276 /* Only relevant for scalable formats. */ 277 /* */ 278 /* max_contours :: */ 279 /* The maximal number of contours used to store the vectorial */ 280 /* outline of any glyph in this face. If this value cannot be */ 281 /* known in advance, or if the face isn't scalable, this should be */ 282 /* set to 0. Only relevant for scalable formats. */ 283 /* */ 284 /* transform_matrix :: */ 285 /* A 2x2 matrix of 16.16 coefficients used to transform glyph */ 286 /* outlines after they are loaded from the font. Only used by the */ 287 /* convenience functions. */ 288 /* */ 289 /* transform_delta :: */ 290 /* A translation vector used to transform glyph outlines after they */ 291 /* are loaded from the font. Only used by the convenience */ 292 /* functions. */ 293 /* */ 294 /* transform_flags :: */ 295 /* Some flags used to classify the transform. Only used by the */ 296 /* convenience functions. */ 297 /* */ 298 /* services :: */ 299 /* A cache for frequently used services. It should be only */ 300 /* accessed with the macro `FT_FACE_LOOKUP_SERVICE'. */ 301 /* */ 302 /* incremental_interface :: */ 303 /* If non-null, the interface through which glyph data and metrics */ 304 /* are loaded incrementally for faces that do not provide all of */ 305 /* this data when first opened. This field exists only if */ 306 /* @FT_CONFIG_OPTION_INCREMENTAL is defined. */ 307 /* */ 308 /* ignore_unpatented_hinter :: */ 309 /* This boolean flag instructs the glyph loader to ignore the */ 310 /* native font hinter, if one is found. This is exclusively used */ 311 /* in the case when the unpatented hinter is compiled within the */ 312 /* library. */ 313 /* */ 314 typedef struct FT_Face_InternalRec_ 315 { 316 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS 317 FT_UShort reserved1; 318 FT_Short reserved2; 319 #endif 320 FT_Matrix transform_matrix; 321 FT_Vector transform_delta; 322 FT_Int transform_flags; 323 324 FT_ServiceCacheRec services; 325 326 #ifdef FT_CONFIG_OPTION_INCREMENTAL 327 FT_Incremental_InterfaceRec* incremental_interface; 328 #endif 329 330 FT_Bool ignore_unpatented_hinter; 331 332 } FT_Face_InternalRec; 333 334 335 /*************************************************************************/ 336 /* */ 337 /* <Struct> */ 338 /* FT_Slot_InternalRec */ 339 /* */ 340 /* <Description> */ 341 /* This structure contains the internal fields of each FT_GlyphSlot */ 342 /* object. These fields may change between different releases of */ 343 /* FreeType. */ 344 /* */ 345 /* <Fields> */ 346 /* loader :: The glyph loader object used to load outlines */ 347 /* into the glyph slot. */ 348 /* */ 349 /* flags :: Possible values are zero or */ 350 /* FT_GLYPH_OWN_BITMAP. The latter indicates */ 351 /* that the FT_GlyphSlot structure owns the */ 352 /* bitmap buffer. */ 353 /* */ 354 /* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */ 355 /* must be transformed through a specific */ 356 /* font transformation. This is _not_ the same */ 357 /* as the face transform set through */ 358 /* FT_Set_Transform(). */ 359 /* */ 360 /* glyph_matrix :: The 2x2 matrix corresponding to the glyph */ 361 /* transformation, if necessary. */ 362 /* */ 363 /* glyph_delta :: The 2d translation vector corresponding to */ 364 /* the glyph transformation, if necessary. */ 365 /* */ 366 /* glyph_hints :: Format-specific glyph hints management. */ 367 /* */ 368 369 #define FT_GLYPH_OWN_BITMAP 0x1 370 371 typedef struct FT_Slot_InternalRec_ 372 { 373 FT_GlyphLoader loader; 374 FT_UInt flags; 375 FT_Bool glyph_transformed; 376 FT_Matrix glyph_matrix; 377 FT_Vector glyph_delta; 378 void* glyph_hints; 379 380 } FT_GlyphSlot_InternalRec; 381 382 383 #if 0 384 385 /*************************************************************************/ 386 /* */ 387 /* <Struct> */ 388 /* FT_Size_InternalRec */ 389 /* */ 390 /* <Description> */ 391 /* This structure contains the internal fields of each FT_Size */ 392 /* object. Currently, it's empty. */ 393 /* */ 394 /*************************************************************************/ 395 396 typedef struct FT_Size_InternalRec_ 397 { 398 /* empty */ 399 400 } FT_Size_InternalRec; 401 402 #endif 403 404 405 /*************************************************************************/ 406 /*************************************************************************/ 407 /**** ****/ 408 /**** ****/ 409 /**** M O D U L E S ****/ 410 /**** ****/ 411 /**** ****/ 412 /*************************************************************************/ 413 /*************************************************************************/ 414 /*************************************************************************/ 415 416 417 /*************************************************************************/ 418 /* */ 419 /* <Struct> */ 420 /* FT_ModuleRec */ 421 /* */ 422 /* <Description> */ 423 /* A module object instance. */ 424 /* */ 425 /* <Fields> */ 426 /* clazz :: A pointer to the module's class. */ 427 /* */ 428 /* library :: A handle to the parent library object. */ 429 /* */ 430 /* memory :: A handle to the memory manager. */ 431 /* */ 432 /* generic :: A generic structure for user-level extensibility (?). */ 433 /* */ 434 typedef struct FT_ModuleRec_ 435 { 436 FT_Module_Class* clazz; 437 FT_Library library; 438 FT_Memory memory; 439 FT_Generic generic; 440 441 } FT_ModuleRec; 442 443 444 /* typecast an object to a FT_Module */ 445 #define FT_MODULE( x ) ((FT_Module)( x )) 446 #define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz 447 #define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library 448 #define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory 449 450 451 #define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ 452 FT_MODULE_FONT_DRIVER ) 453 454 #define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ 455 FT_MODULE_RENDERER ) 456 457 #define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ 458 FT_MODULE_HINTER ) 459 460 #define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ 461 FT_MODULE_STYLER ) 462 463 #define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \ 464 FT_MODULE_DRIVER_SCALABLE ) 465 466 #define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \ 467 FT_MODULE_DRIVER_NO_OUTLINES ) 468 469 #define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ 470 FT_MODULE_DRIVER_HAS_HINTER ) 471 472 473 /*************************************************************************/ 474 /* */ 475 /* <Function> */ 476 /* FT_Get_Module_Interface */ 477 /* */ 478 /* <Description> */ 479 /* Finds a module and returns its specific interface as a typeless */ 480 /* pointer. */ 481 /* */ 482 /* <Input> */ 483 /* library :: A handle to the library object. */ 484 /* */ 485 /* module_name :: The module's name (as an ASCII string). */ 486 /* */ 487 /* <Return> */ 488 /* A module-specific interface if available, 0 otherwise. */ 489 /* */ 490 /* <Note> */ 491 /* You should better be familiar with FreeType internals to know */ 492 /* which module to look for, and what its interface is :-) */ 493 /* */ 494 FT_BASE( const void* ) 495 FT_Get_Module_Interface( FT_Library library, 496 const char* mod_name ); 497 498 FT_BASE( FT_Pointer ) 499 ft_module_get_service( FT_Module module, 500 const char* service_id ); 501 502 /* */ 503 504 505 /*************************************************************************/ 506 /*************************************************************************/ 507 /*************************************************************************/ 508 /**** ****/ 509 /**** ****/ 510 /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ 511 /**** ****/ 512 /**** ****/ 513 /*************************************************************************/ 514 /*************************************************************************/ 515 /*************************************************************************/ 516 517 /* a few macros used to perform easy typecasts with minimal brain damage */ 518 519 #define FT_FACE( x ) ((FT_Face)(x)) 520 #define FT_SIZE( x ) ((FT_Size)(x)) 521 #define FT_SLOT( x ) ((FT_GlyphSlot)(x)) 522 523 #define FT_FACE_DRIVER( x ) FT_FACE( x )->driver 524 #define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library 525 #define FT_FACE_MEMORY( x ) FT_FACE( x )->memory 526 #define FT_FACE_STREAM( x ) FT_FACE( x )->stream 527 528 #define FT_SIZE_FACE( x ) FT_SIZE( x )->face 529 #define FT_SLOT_FACE( x ) FT_SLOT( x )->face 530 531 #define FT_FACE_SLOT( x ) FT_FACE( x )->glyph 532 #define FT_FACE_SIZE( x ) FT_FACE( x )->size 533 534 535 /*************************************************************************/ 536 /* */ 537 /* <Function> */ 538 /* FT_New_GlyphSlot */ 539 /* */ 540 /* <Description> */ 541 /* It is sometimes useful to have more than one glyph slot for a */ 542 /* given face object. This function is used to create additional */ 543 /* slots. All of them are automatically discarded when the face is */ 544 /* destroyed. */ 545 /* */ 546 /* <Input> */ 547 /* face :: A handle to a parent face object. */ 548 /* */ 549 /* <Output> */ 550 /* aslot :: A handle to a new glyph slot object. */ 551 /* */ 552 /* <Return> */ 553 /* FreeType error code. 0 means success. */ 554 /* */ 555 FT_BASE( FT_Error ) 556 FT_New_GlyphSlot( FT_Face face, 557 FT_GlyphSlot *aslot ); 558 559 560 /*************************************************************************/ 561 /* */ 562 /* <Function> */ 563 /* FT_Done_GlyphSlot */ 564 /* */ 565 /* <Description> */ 566 /* Destroys a given glyph slot. Remember however that all slots are */ 567 /* automatically destroyed with its parent. Using this function is */ 568 /* not always mandatory. */ 569 /* */ 570 /* <Input> */ 571 /* slot :: A handle to a target glyph slot. */ 572 /* */ 573 FT_BASE( void ) 574 FT_Done_GlyphSlot( FT_GlyphSlot slot ); 575 576 /* */ 577 578 #define FT_REQUEST_WIDTH( req ) \ 579 ( (req)->horiResolution \ 580 ? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \ 581 : (req)->width ) 582 583 #define FT_REQUEST_HEIGHT( req ) \ 584 ( (req)->vertResolution \ 585 ? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \ 586 : (req)->height ) 587 588 589 /* Set the metrics according to a bitmap strike. */ 590 FT_BASE( void ) 591 FT_Select_Metrics( FT_Face face, 592 FT_ULong strike_index ); 593 594 595 /* Set the metrics according to a size request. */ 596 FT_BASE( void ) 597 FT_Request_Metrics( FT_Face face, 598 FT_Size_Request req ); 599 600 601 /* Match a size request against `available_sizes'. */ 602 FT_BASE( FT_Error ) 603 FT_Match_Size( FT_Face face, 604 FT_Size_Request req, 605 FT_Bool ignore_width, 606 FT_ULong* size_index ); 607 608 609 /* Use the horizontal metrics to synthesize the vertical metrics. */ 610 /* If `advance' is zero, it is also synthesized. */ 611 FT_BASE( void ) 612 ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics, 613 FT_Pos advance ); 614 615 616 /* Free the bitmap of a given glyphslot when needed (i.e., only when it */ 617 /* was allocated with ft_glyphslot_alloc_bitmap). */ 618 FT_BASE( void ) 619 ft_glyphslot_free_bitmap( FT_GlyphSlot slot ); 620 621 622 /* Allocate a new bitmap buffer in a glyph slot. */ 623 FT_BASE( FT_Error ) 624 ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, 625 FT_ULong size ); 626 627 628 /* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */ 629 /* will not be freed by a later call to ft_glyphslot_free_bitmap. */ 630 FT_BASE( void ) 631 ft_glyphslot_set_bitmap( FT_GlyphSlot slot, 632 FT_Byte* buffer ); 633 634 635 /*************************************************************************/ 636 /*************************************************************************/ 637 /*************************************************************************/ 638 /**** ****/ 639 /**** ****/ 640 /**** R E N D E R E R S ****/ 641 /**** ****/ 642 /**** ****/ 643 /*************************************************************************/ 644 /*************************************************************************/ 645 /*************************************************************************/ 646 647 648 #define FT_RENDERER( x ) ((FT_Renderer)( x )) 649 #define FT_GLYPH( x ) ((FT_Glyph)( x )) 650 #define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x )) 651 #define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x )) 652 653 654 typedef struct FT_RendererRec_ 655 { 656 FT_ModuleRec root; 657 FT_Renderer_Class* clazz; 658 FT_Glyph_Format glyph_format; 659 FT_Glyph_Class glyph_class; 660 661 FT_Raster raster; 662 FT_Raster_Render_Func raster_render; 663 FT_Renderer_RenderFunc render; 664 665 } FT_RendererRec; 666 667 668 /*************************************************************************/ 669 /*************************************************************************/ 670 /*************************************************************************/ 671 /**** ****/ 672 /**** ****/ 673 /**** F O N T D R I V E R S ****/ 674 /**** ****/ 675 /**** ****/ 676 /*************************************************************************/ 677 /*************************************************************************/ 678 /*************************************************************************/ 679 680 681 /* typecast a module into a driver easily */ 682 #define FT_DRIVER( x ) ((FT_Driver)(x)) 683 684 /* typecast a module as a driver, and get its driver class */ 685 #define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz 686 687 688 /*************************************************************************/ 689 /* */ 690 /* <Struct> */ 691 /* FT_DriverRec */ 692 /* */ 693 /* <Description> */ 694 /* The root font driver class. A font driver is responsible for */ 695 /* managing and loading font files of a given format. */ 696 /* */ 697 /* <Fields> */ 698 /* root :: Contains the fields of the root module class. */ 699 /* */ 700 /* clazz :: A pointer to the font driver's class. Note that */ 701 /* this is NOT root.clazz. `class' wasn't used */ 702 /* as it is a reserved word in C++. */ 703 /* */ 704 /* faces_list :: The list of faces currently opened by this */ 705 /* driver. */ 706 /* */ 707 /* extensions :: A typeless pointer to the driver's extensions */ 708 /* registry, if they are supported through the */ 709 /* configuration macro FT_CONFIG_OPTION_EXTENSIONS. */ 710 /* */ 711 /* glyph_loader :: The glyph loader for all faces managed by this */ 712 /* driver. This object isn't defined for unscalable */ 713 /* formats. */ 714 /* */ 715 typedef struct FT_DriverRec_ 716 { 717 FT_ModuleRec root; 718 FT_Driver_Class clazz; 719 720 FT_ListRec faces_list; 721 void* extensions; 722 723 FT_GlyphLoader glyph_loader; 724 725 } FT_DriverRec; 726 727 728 /*************************************************************************/ 729 /*************************************************************************/ 730 /*************************************************************************/ 731 /**** ****/ 732 /**** ****/ 733 /**** L I B R A R I E S ****/ 734 /**** ****/ 735 /**** ****/ 736 /*************************************************************************/ 737 /*************************************************************************/ 738 /*************************************************************************/ 739 740 741 /* This hook is used by the TrueType debugger. It must be set to an */ 742 /* alternate truetype bytecode interpreter function. */ 743 #define FT_DEBUG_HOOK_TRUETYPE 0 744 745 746 /* Set this debug hook to a non-null pointer to force unpatented hinting */ 747 /* for all faces when both TT_USE_BYTECODE_INTERPRETER and */ 748 /* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */ 749 /* during debugging. */ 750 #define FT_DEBUG_HOOK_UNPATENTED_HINTING 1 751 752 753 typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap, 754 FT_Render_Mode render_mode, 755 FT_Library library ); 756 757 758 /*************************************************************************/ 759 /* */ 760 /* <Struct> */ 761 /* FT_LibraryRec */ 762 /* */ 763 /* <Description> */ 764 /* The FreeType library class. This is the root of all FreeType */ 765 /* data. Use FT_New_Library() to create a library object, and */ 766 /* FT_Done_Library() to discard it and all child objects. */ 767 /* */ 768 /* <Fields> */ 769 /* memory :: The library's memory object. Manages memory */ 770 /* allocation. */ 771 /* */ 772 /* generic :: Client data variable. Used to extend the */ 773 /* Library class by higher levels and clients. */ 774 /* */ 775 /* version_major :: The major version number of the library. */ 776 /* */ 777 /* version_minor :: The minor version number of the library. */ 778 /* */ 779 /* version_patch :: The current patch level of the library. */ 780 /* */ 781 /* num_modules :: The number of modules currently registered */ 782 /* within this library. This is set to 0 for new */ 783 /* libraries. New modules are added through the */ 784 /* FT_Add_Module() API function. */ 785 /* */ 786 /* modules :: A table used to store handles to the currently */ 787 /* registered modules. Note that each font driver */ 788 /* contains a list of its opened faces. */ 789 /* */ 790 /* renderers :: The list of renderers currently registered */ 791 /* within the library. */ 792 /* */ 793 /* cur_renderer :: The current outline renderer. This is a */ 794 /* shortcut used to avoid parsing the list on */ 795 /* each call to FT_Outline_Render(). It is a */ 796 /* handle to the current renderer for the */ 797 /* FT_GLYPH_FORMAT_OUTLINE format. */ 798 /* */ 799 /* auto_hinter :: XXX */ 800 /* */ 801 /* raster_pool :: The raster object's render pool. This can */ 802 /* ideally be changed dynamically at run-time. */ 803 /* */ 804 /* raster_pool_size :: The size of the render pool in bytes. */ 805 /* */ 806 /* debug_hooks :: XXX */ 807 /* */ 808 /* pic_container :: Contains global structs and tables, instead */ 809 /* of defining them globallly. */ 810 /* */ 811 812 typedef struct FT_LibraryRec_ 813 { 814 FT_Memory memory; /* library's memory manager */ 815 816 FT_Generic generic; 817 818 FT_Int version_major; 819 FT_Int version_minor; 820 FT_Int version_patch; 821 822 FT_UInt num_modules; 823 FT_Module modules[FT_MAX_MODULES]; /* module objects */ 824 825 FT_ListRec renderers; /* list of renderers */ 826 FT_Renderer cur_renderer; /* current outline renderer */ 827 FT_Module auto_hinter; 828 829 FT_Byte* raster_pool; /* scan-line conversion */ 830 /* render pool */ 831 FT_ULong raster_pool_size; /* size of render pool in bytes */ 832 833 FT_DebugHook_Func debug_hooks[4]; 834 835 #ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING 836 FT_LcdFilter lcd_filter; 837 FT_Int lcd_extra; /* number of extra pixels */ 838 FT_Byte lcd_weights[7]; /* filter weights, if any */ 839 FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */ 840 #endif 841 842 #ifdef FT_CONFIG_OPTION_PIC 843 FT_PIC_Container pic_container; 844 #endif 845 846 } FT_LibraryRec; 847 848 849 FT_BASE( FT_Renderer ) 850 FT_Lookup_Renderer( FT_Library library, 851 FT_Glyph_Format format, 852 FT_ListNode* node ); 853 854 FT_BASE( FT_Error ) 855 FT_Render_Glyph_Internal( FT_Library library, 856 FT_GlyphSlot slot, 857 FT_Render_Mode render_mode ); 858 859 typedef const char* 860 (*FT_Face_GetPostscriptNameFunc)( FT_Face face ); 861 862 typedef FT_Error 863 (*FT_Face_GetGlyphNameFunc)( FT_Face face, 864 FT_UInt glyph_index, 865 FT_Pointer buffer, 866 FT_UInt buffer_max ); 867 868 typedef FT_UInt 869 (*FT_Face_GetGlyphNameIndexFunc)( FT_Face face, 870 FT_String* glyph_name ); 871 872 873 #ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM 874 875 /*************************************************************************/ 876 /* */ 877 /* <Function> */ 878 /* FT_New_Memory */ 879 /* */ 880 /* <Description> */ 881 /* Creates a new memory object. */ 882 /* */ 883 /* <Return> */ 884 /* A pointer to the new memory object. 0 in case of error. */ 885 /* */ 886 FT_BASE( FT_Memory ) 887 FT_New_Memory( void ); 888 889 890 /*************************************************************************/ 891 /* */ 892 /* <Function> */ 893 /* FT_Done_Memory */ 894 /* */ 895 /* <Description> */ 896 /* Discards memory manager. */ 897 /* */ 898 /* <Input> */ 899 /* memory :: A handle to the memory manager. */ 900 /* */ 901 FT_BASE( void ) 902 FT_Done_Memory( FT_Memory memory ); 903 904 #endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */ 905 906 907 /* Define default raster's interface. The default raster is located in */ 908 /* `src/base/ftraster.c'. */ 909 /* */ 910 /* Client applications can register new rasters through the */ 911 /* FT_Set_Raster() API. */ 912 913 #ifndef FT_NO_DEFAULT_RASTER 914 FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster; 915 #endif 916 917 /*************************************************************************/ 918 /*************************************************************************/ 919 /*************************************************************************/ 920 /**** ****/ 921 /**** ****/ 922 /**** PIC-Support Macros for ftimage.h ****/ 923 /**** ****/ 924 /**** ****/ 925 /*************************************************************************/ 926 /*************************************************************************/ 927 /*************************************************************************/ 928 929 930 /*************************************************************************/ 931 /* */ 932 /* <Macro> */ 933 /* FT_DEFINE_OUTLINE_FUNCS */ 934 /* */ 935 /* <Description> */ 936 /* Used to initialize an instance of FT_Outline_Funcs struct. */ 937 /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ 938 /* called with a pre-allocated stracture to be filled. */ 939 /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ 940 /* allocated in the global scope (or the scope where the macro */ 941 /* is used). */ 942 /* */ 943 #ifndef FT_CONFIG_OPTION_PIC 944 945 #define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ 946 cubic_to_, shift_, delta_) \ 947 static const FT_Outline_Funcs class_ = \ 948 { \ 949 move_to_, line_to_, conic_to_, cubic_to_, shift_, delta_ \ 950 }; 951 952 #else /* FT_CONFIG_OPTION_PIC */ 953 954 #define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ 955 cubic_to_, shift_, delta_) \ 956 static FT_Error \ 957 Init_Class_##class_( FT_Outline_Funcs* clazz ) \ 958 { \ 959 clazz->move_to = move_to_; \ 960 clazz->line_to = line_to_; \ 961 clazz->conic_to = conic_to_; \ 962 clazz->cubic_to = cubic_to_; \ 963 clazz->shift = shift_; \ 964 clazz->delta = delta_; \ 965 return FT_Err_Ok; \ 966 } 967 968 #endif /* FT_CONFIG_OPTION_PIC */ 969 970 /*************************************************************************/ 971 /* */ 972 /* <Macro> */ 973 /* FT_DEFINE_RASTER_FUNCS */ 974 /* */ 975 /* <Description> */ 976 /* Used to initialize an instance of FT_Raster_Funcs struct. */ 977 /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ 978 /* called with a pre-allocated stracture to be filled. */ 979 /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ 980 /* allocated in the global scope (or the scope where the macro */ 981 /* is used). */ 982 /* */ 983 #ifndef FT_CONFIG_OPTION_PIC 984 985 #define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \ 986 raster_reset_, raster_set_mode_, \ 987 raster_render_, raster_done_) \ 988 const FT_Raster_Funcs class_ = \ 989 { \ 990 glyph_format_, raster_new_, raster_reset_, \ 991 raster_set_mode_, raster_render_, raster_done_ \ 992 }; 993 994 #else /* FT_CONFIG_OPTION_PIC */ 995 996 #define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \ 997 raster_reset_, raster_set_mode_, raster_render_, raster_done_) \ 998 void \ 999 FT_Init_Class_##class_( FT_Raster_Funcs* clazz ) \ 1000 { \ 1001 clazz->glyph_format = glyph_format_; \ 1002 clazz->raster_new = raster_new_; \ 1003 clazz->raster_reset = raster_reset_; \ 1004 clazz->raster_set_mode = raster_set_mode_; \ 1005 clazz->raster_render = raster_render_; \ 1006 clazz->raster_done = raster_done_; \ 1007 } 1008 1009 #endif /* FT_CONFIG_OPTION_PIC */ 1010 1011 /*************************************************************************/ 1012 /*************************************************************************/ 1013 /*************************************************************************/ 1014 /**** ****/ 1015 /**** ****/ 1016 /**** PIC-Support Macros for ftrender.h ****/ 1017 /**** ****/ 1018 /**** ****/ 1019 /*************************************************************************/ 1020 /*************************************************************************/ 1021 /*************************************************************************/ 1022 1023 1024 1025 /*************************************************************************/ 1026 /* */ 1027 /* <Macro> */ 1028 /* FT_DEFINE_GLYPH */ 1029 /* */ 1030 /* <Description> */ 1031 /* Used to initialize an instance of FT_Glyph_Class struct. */ 1032 /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ 1033 /* called with a pre-allocated stracture to be filled. */ 1034 /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ 1035 /* allocated in the global scope (or the scope where the macro */ 1036 /* is used). */ 1037 /* */ 1038 #ifndef FT_CONFIG_OPTION_PIC 1039 1040 #define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \ 1041 transform_, bbox_, prepare_) \ 1042 FT_CALLBACK_TABLE_DEF \ 1043 const FT_Glyph_Class class_ = \ 1044 { \ 1045 size_, format_, init_, done_, copy_, transform_, bbox_, prepare_ \ 1046 }; 1047 1048 #else /* FT_CONFIG_OPTION_PIC */ 1049 1050 #define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \ 1051 transform_, bbox_, prepare_) \ 1052 void \ 1053 FT_Init_Class_##class_( FT_Glyph_Class* clazz ) \ 1054 { \ 1055 clazz->glyph_size = size_; \ 1056 clazz->glyph_format = format_; \ 1057 clazz->glyph_init = init_; \ 1058 clazz->glyph_done = done_; \ 1059 clazz->glyph_copy = copy_; \ 1060 clazz->glyph_transform = transform_; \ 1061 clazz->glyph_bbox = bbox_; \ 1062 clazz->glyph_prepare = prepare_; \ 1063 } 1064 1065 #endif /* FT_CONFIG_OPTION_PIC */ 1066 1067 /*************************************************************************/ 1068 /* */ 1069 /* <Macro> */ 1070 /* FT_DECLARE_RENDERER */ 1071 /* */ 1072 /* <Description> */ 1073 /* Used to create a forward declaration of a */ 1074 /* FT_Renderer_Class stract instance. */ 1075 /* */ 1076 /* <Macro> */ 1077 /* FT_DEFINE_RENDERER */ 1078 /* */ 1079 /* <Description> */ 1080 /* Used to initialize an instance of FT_Renderer_Class struct. */ 1081 /* */ 1082 /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ 1083 /* to called with a pointer where the allocated stracture is returned.*/ 1084 /* And when it is no longer needed a Destroy function needs */ 1085 /* to be called to release that allocation. */ 1086 /* fcinit.c (ft_create_default_module_classes) already contains */ 1087 /* a mechanism to call these functions for the default modules */ 1088 /* described in ftmodule.h */ 1089 /* */ 1090 /* Notice that the created Create and Destroy functions call */ 1091 /* pic_init and pic_free function to allow you to manually allocate */ 1092 /* and initialize any additional global data, like module specific */ 1093 /* interface, and put them in the global pic container defined in */ 1094 /* ftpic.h. if you don't need them just implement the functions as */ 1095 /* empty to resolve the link error. */ 1096 /* */ 1097 /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ 1098 /* allocated in the global scope (or the scope where the macro */ 1099 /* is used). */ 1100 /* */ 1101 #ifndef FT_CONFIG_OPTION_PIC 1102 1103 #define FT_DECLARE_RENDERER(class_) \ 1104 FT_EXPORT_VAR( const FT_Renderer_Class ) class_; 1105 1106 #define FT_DEFINE_RENDERER(class_, \ 1107 flags_, size_, name_, version_, requires_, \ 1108 interface_, init_, done_, get_interface_, \ 1109 glyph_format_, render_glyph_, transform_glyph_, \ 1110 get_glyph_cbox_, set_mode_, raster_class_ ) \ 1111 FT_CALLBACK_TABLE_DEF \ 1112 const FT_Renderer_Class class_ = \ 1113 { \ 1114 FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \ 1115 interface_,init_,done_,get_interface_) \ 1116 glyph_format_, \ 1117 \ 1118 render_glyph_, \ 1119 transform_glyph_, \ 1120 get_glyph_cbox_, \ 1121 set_mode_, \ 1122 \ 1123 raster_class_ \ 1124 }; 1125 1126 #else /* FT_CONFIG_OPTION_PIC */ 1127 1128 #define FT_DECLARE_RENDERER(class_) FT_DECLARE_MODULE(class_) 1129 1130 #define FT_DEFINE_RENDERER(class_, \ 1131 flags_, size_, name_, version_, requires_, \ 1132 interface_, init_, done_, get_interface_, \ 1133 glyph_format_, render_glyph_, transform_glyph_, \ 1134 get_glyph_cbox_, set_mode_, raster_class_ ) \ 1135 void class_##_pic_free( FT_Library library ); \ 1136 FT_Error class_##_pic_init( FT_Library library ); \ 1137 \ 1138 void \ 1139 FT_Destroy_Class_##class_( FT_Library library, \ 1140 FT_Module_Class* clazz ) \ 1141 { \ 1142 FT_Renderer_Class* rclazz = (FT_Renderer_Class*)clazz; \ 1143 FT_Memory memory = library->memory; \ 1144 class_##_pic_free( library ); \ 1145 if ( rclazz ) \ 1146 FT_FREE( rclazz ); \ 1147 } \ 1148 \ 1149 FT_Error \ 1150 FT_Create_Class_##class_( FT_Library library, \ 1151 FT_Module_Class** output_class ) \ 1152 { \ 1153 FT_Renderer_Class* clazz; \ 1154 FT_Error error; \ 1155 FT_Memory memory = library->memory; \ 1156 \ 1157 if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ 1158 return error; \ 1159 \ 1160 error = class_##_pic_init( library ); \ 1161 if(error) \ 1162 { \ 1163 FT_FREE( clazz ); \ 1164 return error; \ 1165 } \ 1166 \ 1167 FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \ 1168 interface_,init_,done_,get_interface_) \ 1169 \ 1170 clazz->glyph_format = glyph_format_; \ 1171 \ 1172 clazz->render_glyph = render_glyph_; \ 1173 clazz->transform_glyph = transform_glyph_; \ 1174 clazz->get_glyph_cbox = get_glyph_cbox_; \ 1175 clazz->set_mode = set_mode_; \ 1176 \ 1177 clazz->raster_class = raster_class_; \ 1178 \ 1179 *output_class = (FT_Module_Class*)clazz; \ 1180 return FT_Err_Ok; \ 1181 } 1182 1183 1184 1185 #endif /* FT_CONFIG_OPTION_PIC */ 1186 1187 /*************************************************************************/ 1188 /*************************************************************************/ 1189 /*************************************************************************/ 1190 /**** ****/ 1191 /**** ****/ 1192 /**** PIC-Support Macros for ftmodapi.h ****/ 1193 /**** ****/ 1194 /**** ****/ 1195 /*************************************************************************/ 1196 /*************************************************************************/ 1197 /*************************************************************************/ 1198 1199 1200 #ifdef FT_CONFIG_OPTION_PIC 1201 1202 /*************************************************************************/ 1203 /* */ 1204 /* <FuncType> */ 1205 /* FT_Module_Creator */ 1206 /* */ 1207 /* <Description> */ 1208 /* A function used to create (allocate) a new module class object. */ 1209 /* The object's members are initialized, but the module itself is */ 1210 /* not. */ 1211 /* */ 1212 /* <Input> */ 1213 /* memory :: A handle to the memory manager. */ 1214 /* output_class :: Initialized with the newly allocated class. */ 1215 /* */ 1216 typedef FT_Error 1217 (*FT_Module_Creator)( FT_Memory memory, 1218 FT_Module_Class** output_class ); 1219 1220 /*************************************************************************/ 1221 /* */ 1222 /* <FuncType> */ 1223 /* FT_Module_Destroyer */ 1224 /* */ 1225 /* <Description> */ 1226 /* A function used to destroy (deallocate) a module class object. */ 1227 /* */ 1228 /* <Input> */ 1229 /* memory :: A handle to the memory manager. */ 1230 /* clazz :: Module class to destroy. */ 1231 /* */ 1232 typedef void 1233 (*FT_Module_Destroyer)( FT_Memory memory, 1234 FT_Module_Class* clazz ); 1235 1236 #endif 1237 1238 /*************************************************************************/ 1239 /* */ 1240 /* <Macro> */ 1241 /* FT_DECLARE_MODULE */ 1242 /* */ 1243 /* <Description> */ 1244 /* Used to create a forward declaration of a */ 1245 /* FT_Module_Class stract instance. */ 1246 /* */ 1247 /* <Macro> */ 1248 /* FT_DEFINE_MODULE */ 1249 /* */ 1250 /* <Description> */ 1251 /* Used to initialize an instance of FT_Module_Class struct. */ 1252 /* */ 1253 /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ 1254 /* to called with a pointer where the allocated stracture is returned.*/ 1255 /* And when it is no longer needed a Destroy function needs */ 1256 /* to be called to release that allocation. */ 1257 /* fcinit.c (ft_create_default_module_classes) already contains */ 1258 /* a mechanism to call these functions for the default modules */ 1259 /* described in ftmodule.h */ 1260 /* */ 1261 /* Notice that the created Create and Destroy functions call */ 1262 /* pic_init and pic_free function to allow you to manually allocate */ 1263 /* and initialize any additional global data, like module specific */ 1264 /* interface, and put them in the global pic container defined in */ 1265 /* ftpic.h. if you don't need them just implement the functions as */ 1266 /* empty to resolve the link error. */ 1267 /* */ 1268 /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ 1269 /* allocated in the global scope (or the scope where the macro */ 1270 /* is used). */ 1271 /* */ 1272 /* <Macro> */ 1273 /* FT_DEFINE_ROOT_MODULE */ 1274 /* */ 1275 /* <Description> */ 1276 /* Used to initialize an instance of FT_Module_Class struct inside */ 1277 /* another stract that contains it or in a function that initializes */ 1278 /* that containing stract */ 1279 /* */ 1280 #ifndef FT_CONFIG_OPTION_PIC 1281 1282 #define FT_DECLARE_MODULE(class_) \ 1283 FT_CALLBACK_TABLE \ 1284 const FT_Module_Class class_; \ 1285 1286 #define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \ 1287 interface_, init_, done_, get_interface_) \ 1288 { \ 1289 flags_, \ 1290 size_, \ 1291 \ 1292 name_, \ 1293 version_, \ 1294 requires_, \ 1295 \ 1296 interface_, \ 1297 \ 1298 init_, \ 1299 done_, \ 1300 get_interface_, \ 1301 }, 1302 1303 #define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \ 1304 interface_, init_, done_, get_interface_) \ 1305 FT_CALLBACK_TABLE_DEF \ 1306 const FT_Module_Class class_ = \ 1307 { \ 1308 flags_, \ 1309 size_, \ 1310 \ 1311 name_, \ 1312 version_, \ 1313 requires_, \ 1314 \ 1315 interface_, \ 1316 \ 1317 init_, \ 1318 done_, \ 1319 get_interface_, \ 1320 }; 1321 1322 1323 #else /* FT_CONFIG_OPTION_PIC */ 1324 1325 #define FT_DECLARE_MODULE(class_) \ 1326 FT_Error FT_Create_Class_##class_( FT_Library library, \ 1327 FT_Module_Class** output_class ); \ 1328 void FT_Destroy_Class_##class_( FT_Library library, \ 1329 FT_Module_Class* clazz ); 1330 1331 #define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \ 1332 interface_, init_, done_, get_interface_) \ 1333 clazz->root.module_flags = flags_; \ 1334 clazz->root.module_size = size_; \ 1335 clazz->root.module_name = name_; \ 1336 clazz->root.module_version = version_; \ 1337 clazz->root.module_requires = requires_; \ 1338 \ 1339 clazz->root.module_interface = interface_; \ 1340 \ 1341 clazz->root.module_init = init_; \ 1342 clazz->root.module_done = done_; \ 1343 clazz->root.get_interface = get_interface_; 1344 1345 #define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \ 1346 interface_, init_, done_, get_interface_) \ 1347 void class_##_pic_free( FT_Library library ); \ 1348 FT_Error class_##_pic_init( FT_Library library ); \ 1349 \ 1350 void \ 1351 FT_Destroy_Class_##class_( FT_Library library, \ 1352 FT_Module_Class* clazz ) \ 1353 { \ 1354 FT_Memory memory = library->memory; \ 1355 class_##_pic_free( library ); \ 1356 if ( clazz ) \ 1357 FT_FREE( clazz ); \ 1358 } \ 1359 \ 1360 FT_Error \ 1361 FT_Create_Class_##class_( FT_Library library, \ 1362 FT_Module_Class** output_class ) \ 1363 { \ 1364 FT_Memory memory = library->memory; \ 1365 FT_Module_Class* clazz; \ 1366 FT_Error error; \ 1367 \ 1368 if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ 1369 return error; \ 1370 error = class_##_pic_init( library ); \ 1371 if(error) \ 1372 { \ 1373 FT_FREE( clazz ); \ 1374 return error; \ 1375 } \ 1376 \ 1377 clazz->module_flags = flags_; \ 1378 clazz->module_size = size_; \ 1379 clazz->module_name = name_; \ 1380 clazz->module_version = version_; \ 1381 clazz->module_requires = requires_; \ 1382 \ 1383 clazz->module_interface = interface_; \ 1384 \ 1385 clazz->module_init = init_; \ 1386 clazz->module_done = done_; \ 1387 clazz->get_interface = get_interface_; \ 1388 \ 1389 *output_class = clazz; \ 1390 return FT_Err_Ok; \ 1391 } 1392 1393 #endif /* FT_CONFIG_OPTION_PIC */ 1394 1395 1396 FT_END_HEADER 1397 1398 #endif /* __FTOBJS_H__ */ 1399 1400 1401 /* END */ 1402
