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ftobjs.h
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1 /***************************************************************************/
2 /* */
3 /* ftobjs.h */
4 /* */
5 /* The FreeType private base classes (specification). */
6 /* */
7 /* Copyright 1996-2006, 2008, 2010, 2012 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  /* refcount :: */
315  /* A counter initialized to~1 at the time an @FT_Face structure is */
316  /* created. @FT_Reference_Face increments this counter, and */
317  /* @FT_Done_Face only destroys a face if the counter is~1, */
318  /* otherwise it simply decrements it. */
319  /* */
320  typedef struct FT_Face_InternalRec_
321  {
322 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
323  FT_UShort reserved1;
324  FT_Short reserved2;
325 #endif
326  FT_Matrix transform_matrix;
327  FT_Vector transform_delta;
328  FT_Int transform_flags;
329 
330  FT_ServiceCacheRec services;
331 
332 #ifdef FT_CONFIG_OPTION_INCREMENTAL
333  FT_Incremental_InterfaceRec* incremental_interface;
334 #endif
335 
336  FT_Bool ignore_unpatented_hinter;
337  FT_UInt refcount;
338 
339  } FT_Face_InternalRec;
340 
341 
342  /*************************************************************************/
343  /* */
344  /* <Struct> */
345  /* FT_Slot_InternalRec */
346  /* */
347  /* <Description> */
348  /* This structure contains the internal fields of each FT_GlyphSlot */
349  /* object. These fields may change between different releases of */
350  /* FreeType. */
351  /* */
352  /* <Fields> */
353  /* loader :: The glyph loader object used to load outlines */
354  /* into the glyph slot. */
355  /* */
356  /* flags :: Possible values are zero or */
357  /* FT_GLYPH_OWN_BITMAP. The latter indicates */
358  /* that the FT_GlyphSlot structure owns the */
359  /* bitmap buffer. */
360  /* */
361  /* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */
362  /* must be transformed through a specific */
363  /* font transformation. This is _not_ the same */
364  /* as the face transform set through */
365  /* FT_Set_Transform(). */
366  /* */
367  /* glyph_matrix :: The 2x2 matrix corresponding to the glyph */
368  /* transformation, if necessary. */
369  /* */
370  /* glyph_delta :: The 2d translation vector corresponding to */
371  /* the glyph transformation, if necessary. */
372  /* */
373  /* glyph_hints :: Format-specific glyph hints management. */
374  /* */
375 
376 #define FT_GLYPH_OWN_BITMAP 0x1
377 
378  typedef struct FT_Slot_InternalRec_
379  {
380  FT_GlyphLoader loader;
381  FT_UInt flags;
382  FT_Bool glyph_transformed;
383  FT_Matrix glyph_matrix;
384  FT_Vector glyph_delta;
385  void* glyph_hints;
386 
387  } FT_GlyphSlot_InternalRec;
388 
389 
390 #if 0
391 
392  /*************************************************************************/
393  /* */
394  /* <Struct> */
395  /* FT_Size_InternalRec */
396  /* */
397  /* <Description> */
398  /* This structure contains the internal fields of each FT_Size */
399  /* object. Currently, it's empty. */
400  /* */
401  /*************************************************************************/
402 
403  typedef struct FT_Size_InternalRec_
404  {
405  /* empty */
406 
407  } FT_Size_InternalRec;
408 
409 #endif
410 
411 
412  /*************************************************************************/
413  /*************************************************************************/
414  /**** ****/
415  /**** ****/
416  /**** M O D U L E S ****/
417  /**** ****/
418  /**** ****/
419  /*************************************************************************/
420  /*************************************************************************/
421  /*************************************************************************/
422 
423 
424  /*************************************************************************/
425  /* */
426  /* <Struct> */
427  /* FT_ModuleRec */
428  /* */
429  /* <Description> */
430  /* A module object instance. */
431  /* */
432  /* <Fields> */
433  /* clazz :: A pointer to the module's class. */
434  /* */
435  /* library :: A handle to the parent library object. */
436  /* */
437  /* memory :: A handle to the memory manager. */
438  /* */
439  typedef struct FT_ModuleRec_
440  {
441  FT_Module_Class* clazz;
442  FT_Library library;
443  FT_Memory memory;
444 
445  } FT_ModuleRec;
446 
447 
448  /* typecast an object to an FT_Module */
449 #define FT_MODULE( x ) ((FT_Module)( x ))
450 #define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz
451 #define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library
452 #define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory
453 
454 
455 #define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
456  FT_MODULE_FONT_DRIVER )
457 
458 #define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
459  FT_MODULE_RENDERER )
460 
461 #define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
462  FT_MODULE_HINTER )
463 
464 #define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
465  FT_MODULE_STYLER )
466 
467 #define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \
468  FT_MODULE_DRIVER_SCALABLE )
469 
470 #define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \
471  FT_MODULE_DRIVER_NO_OUTLINES )
472 
473 #define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
474  FT_MODULE_DRIVER_HAS_HINTER )
475 
476 
477  /*************************************************************************/
478  /* */
479  /* <Function> */
480  /* FT_Get_Module_Interface */
481  /* */
482  /* <Description> */
483  /* Finds a module and returns its specific interface as a typeless */
484  /* pointer. */
485  /* */
486  /* <Input> */
487  /* library :: A handle to the library object. */
488  /* */
489  /* module_name :: The module's name (as an ASCII string). */
490  /* */
491  /* <Return> */
492  /* A module-specific interface if available, 0 otherwise. */
493  /* */
494  /* <Note> */
495  /* You should better be familiar with FreeType internals to know */
496  /* which module to look for, and what its interface is :-) */
497  /* */
498  FT_BASE( const void* )
499  FT_Get_Module_Interface( FT_Library library,
500  const char* mod_name );
501 
502  FT_BASE( FT_Pointer )
503  ft_module_get_service( FT_Module module,
504  const char* service_id );
505 
506  /* */
507 
508 
509  /*************************************************************************/
510  /*************************************************************************/
511  /*************************************************************************/
512  /**** ****/
513  /**** ****/
514  /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
515  /**** ****/
516  /**** ****/
517  /*************************************************************************/
518  /*************************************************************************/
519  /*************************************************************************/
520 
521  /* a few macros used to perform easy typecasts with minimal brain damage */
522 
523 #define FT_FACE( x ) ((FT_Face)(x))
524 #define FT_SIZE( x ) ((FT_Size)(x))
525 #define FT_SLOT( x ) ((FT_GlyphSlot)(x))
526 
527 #define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
528 #define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
529 #define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
530 #define FT_FACE_STREAM( x ) FT_FACE( x )->stream
531 
532 #define FT_SIZE_FACE( x ) FT_SIZE( x )->face
533 #define FT_SLOT_FACE( x ) FT_SLOT( x )->face
534 
535 #define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
536 #define FT_FACE_SIZE( x ) FT_FACE( x )->size
537 
538 
539  /*************************************************************************/
540  /* */
541  /* <Function> */
542  /* FT_New_GlyphSlot */
543  /* */
544  /* <Description> */
545  /* It is sometimes useful to have more than one glyph slot for a */
546  /* given face object. This function is used to create additional */
547  /* slots. All of them are automatically discarded when the face is */
548  /* destroyed. */
549  /* */
550  /* <Input> */
551  /* face :: A handle to a parent face object. */
552  /* */
553  /* <Output> */
554  /* aslot :: A handle to a new glyph slot object. */
555  /* */
556  /* <Return> */
557  /* FreeType error code. 0 means success. */
558  /* */
559  FT_BASE( FT_Error )
560  FT_New_GlyphSlot( FT_Face face,
561  FT_GlyphSlot *aslot );
562 
563 
564  /*************************************************************************/
565  /* */
566  /* <Function> */
567  /* FT_Done_GlyphSlot */
568  /* */
569  /* <Description> */
570  /* Destroys a given glyph slot. Remember however that all slots are */
571  /* automatically destroyed with its parent. Using this function is */
572  /* not always mandatory. */
573  /* */
574  /* <Input> */
575  /* slot :: A handle to a target glyph slot. */
576  /* */
577  FT_BASE( void )
578  FT_Done_GlyphSlot( FT_GlyphSlot slot );
579 
580  /* */
581 
582 #define FT_REQUEST_WIDTH( req ) \
583  ( (req)->horiResolution \
584  ? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \
585  : (req)->width )
586 
587 #define FT_REQUEST_HEIGHT( req ) \
588  ( (req)->vertResolution \
589  ? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \
590  : (req)->height )
591 
592 
593  /* Set the metrics according to a bitmap strike. */
594  FT_BASE( void )
595  FT_Select_Metrics( FT_Face face,
596  FT_ULong strike_index );
597 
598 
599  /* Set the metrics according to a size request. */
600  FT_BASE( void )
601  FT_Request_Metrics( FT_Face face,
602  FT_Size_Request req );
603 
604 
605  /* Match a size request against `available_sizes'. */
606  FT_BASE( FT_Error )
607  FT_Match_Size( FT_Face face,
608  FT_Size_Request req,
609  FT_Bool ignore_width,
610  FT_ULong* size_index );
611 
612 
613  /* Use the horizontal metrics to synthesize the vertical metrics. */
614  /* If `advance' is zero, it is also synthesized. */
615  FT_BASE( void )
616  ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
617  FT_Pos advance );
618 
619 
620  /* Free the bitmap of a given glyphslot when needed (i.e., only when it */
621  /* was allocated with ft_glyphslot_alloc_bitmap). */
622  FT_BASE( void )
623  ft_glyphslot_free_bitmap( FT_GlyphSlot slot );
624 
625 
626  /* Allocate a new bitmap buffer in a glyph slot. */
627  FT_BASE( FT_Error )
628  ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
629  FT_ULong size );
630 
631 
632  /* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */
633  /* will not be freed by a later call to ft_glyphslot_free_bitmap. */
634  FT_BASE( void )
635  ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
636  FT_Byte* buffer );
637 
638 
639  /*************************************************************************/
640  /*************************************************************************/
641  /*************************************************************************/
642  /**** ****/
643  /**** ****/
644  /**** R E N D E R E R S ****/
645  /**** ****/
646  /**** ****/
647  /*************************************************************************/
648  /*************************************************************************/
649  /*************************************************************************/
650 
651 
652 #define FT_RENDERER( x ) ((FT_Renderer)( x ))
653 #define FT_GLYPH( x ) ((FT_Glyph)( x ))
654 #define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x ))
655 #define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x ))
656 
657 
658  typedef struct FT_RendererRec_
659  {
660  FT_ModuleRec root;
661  FT_Renderer_Class* clazz;
662  FT_Glyph_Format glyph_format;
663  FT_Glyph_Class glyph_class;
664 
665  FT_Raster raster;
666  FT_Raster_Render_Func raster_render;
667  FT_Renderer_RenderFunc render;
668 
669  } FT_RendererRec;
670 
671 
672  /*************************************************************************/
673  /*************************************************************************/
674  /*************************************************************************/
675  /**** ****/
676  /**** ****/
677  /**** F O N T D R I V E R S ****/
678  /**** ****/
679  /**** ****/
680  /*************************************************************************/
681  /*************************************************************************/
682  /*************************************************************************/
683 
684 
685  /* typecast a module into a driver easily */
686 #define FT_DRIVER( x ) ((FT_Driver)(x))
687 
688  /* typecast a module as a driver, and get its driver class */
689 #define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz
690 
691 
692  /*************************************************************************/
693  /* */
694  /* <Struct> */
695  /* FT_DriverRec */
696  /* */
697  /* <Description> */
698  /* The root font driver class. A font driver is responsible for */
699  /* managing and loading font files of a given format. */
700  /* */
701  /* <Fields> */
702  /* root :: Contains the fields of the root module class. */
703  /* */
704  /* clazz :: A pointer to the font driver's class. Note that */
705  /* this is NOT root.clazz. `class' wasn't used */
706  /* as it is a reserved word in C++. */
707  /* */
708  /* faces_list :: The list of faces currently opened by this */
709  /* driver. */
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  FT_ListRec faces_list;
720  FT_GlyphLoader glyph_loader;
721 
722  } FT_DriverRec;
723 
724 
725  /*************************************************************************/
726  /*************************************************************************/
727  /*************************************************************************/
728  /**** ****/
729  /**** ****/
730  /**** L I B R A R I E S ****/
731  /**** ****/
732  /**** ****/
733  /*************************************************************************/
734  /*************************************************************************/
735  /*************************************************************************/
736 
737 
738  /* This hook is used by the TrueType debugger. It must be set to an */
739  /* alternate truetype bytecode interpreter function. */
740 #define FT_DEBUG_HOOK_TRUETYPE 0
741 
742 
743  /* Set this debug hook to a non-null pointer to force unpatented hinting */
744  /* for all faces when both TT_USE_BYTECODE_INTERPRETER and */
745  /* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */
746  /* during debugging. */
747 #define FT_DEBUG_HOOK_UNPATENTED_HINTING 1
748 
749 
750  typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap,
751  FT_Render_Mode render_mode,
752  FT_Library library );
753 
754 
755  /*************************************************************************/
756  /* */
757  /* <Struct> */
758  /* FT_LibraryRec */
759  /* */
760  /* <Description> */
761  /* The FreeType library class. This is the root of all FreeType */
762  /* data. Use FT_New_Library() to create a library object, and */
763  /* FT_Done_Library() to discard it and all child objects. */
764  /* */
765  /* <Fields> */
766  /* memory :: The library's memory object. Manages memory */
767  /* allocation. */
768  /* */
769  /* version_major :: The major version number of the library. */
770  /* */
771  /* version_minor :: The minor version number of the library. */
772  /* */
773  /* version_patch :: The current patch level of the library. */
774  /* */
775  /* num_modules :: The number of modules currently registered */
776  /* within this library. This is set to 0 for new */
777  /* libraries. New modules are added through the */
778  /* FT_Add_Module() API function. */
779  /* */
780  /* modules :: A table used to store handles to the currently */
781  /* registered modules. Note that each font driver */
782  /* contains a list of its opened faces. */
783  /* */
784  /* renderers :: The list of renderers currently registered */
785  /* within the library. */
786  /* */
787  /* cur_renderer :: The current outline renderer. This is a */
788  /* shortcut used to avoid parsing the list on */
789  /* each call to FT_Outline_Render(). It is a */
790  /* handle to the current renderer for the */
791  /* FT_GLYPH_FORMAT_OUTLINE format. */
792  /* */
793  /* auto_hinter :: XXX */
794  /* */
795  /* raster_pool :: The raster object's render pool. This can */
796  /* ideally be changed dynamically at run-time. */
797  /* */
798  /* raster_pool_size :: The size of the render pool in bytes. */
799  /* */
800  /* debug_hooks :: XXX */
801  /* */
802  /* lcd_filter :: If subpixel rendering is activated, the */
803  /* selected LCD filter mode. */
804  /* */
805  /* lcd_extra :: If subpixel rendering is activated, the number */
806  /* of extra pixels needed for the LCD filter. */
807  /* */
808  /* lcd_weights :: If subpixel rendering is activated, the LCD */
809  /* filter weights, if any. */
810  /* */
811  /* lcd_filter_func :: If subpixel rendering is activated, the LCD */
812  /* filtering callback function. */
813  /* */
814  /* pic_container :: Contains global structs and tables, instead */
815  /* of defining them globallly. */
816  /* */
817  /* refcount :: A counter initialized to~1 at the time an */
818  /* @FT_Library structure is created. */
819  /* @FT_Reference_Library increments this counter, */
820  /* and @FT_Done_Library only destroys a library */
821  /* if the counter is~1, otherwise it simply */
822  /* decrements it. */
823  /* */
824  typedef struct FT_LibraryRec_
825  {
826  FT_Memory memory; /* library's memory manager */
827 
828  FT_Int version_major;
829  FT_Int version_minor;
830  FT_Int version_patch;
831 
832  FT_UInt num_modules;
833  FT_Module modules[FT_MAX_MODULES]; /* module objects */
834 
835  FT_ListRec renderers; /* list of renderers */
836  FT_Renderer cur_renderer; /* current outline renderer */
837  FT_Module auto_hinter;
838 
839  FT_Byte* raster_pool; /* scan-line conversion */
840  /* render pool */
841  FT_ULong raster_pool_size; /* size of render pool in bytes */
842 
843  FT_DebugHook_Func debug_hooks[4];
844 
845 #ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
846  FT_LcdFilter lcd_filter;
847  FT_Int lcd_extra; /* number of extra pixels */
848  FT_Byte lcd_weights[7]; /* filter weights, if any */
849  FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */
850 #endif
851 
852 #ifdef FT_CONFIG_OPTION_PIC
853  FT_PIC_Container pic_container;
854 #endif
855 
856  FT_UInt refcount;
857 
858  } FT_LibraryRec;
859 
860 
861  FT_BASE( FT_Renderer )
862  FT_Lookup_Renderer( FT_Library library,
863  FT_Glyph_Format format,
864  FT_ListNode* node );
865 
866  FT_BASE( FT_Error )
867  FT_Render_Glyph_Internal( FT_Library library,
868  FT_GlyphSlot slot,
869  FT_Render_Mode render_mode );
870 
871  typedef const char*
872  (*FT_Face_GetPostscriptNameFunc)( FT_Face face );
873 
874  typedef FT_Error
875  (*FT_Face_GetGlyphNameFunc)( FT_Face face,
876  FT_UInt glyph_index,
877  FT_Pointer buffer,
878  FT_UInt buffer_max );
879 
880  typedef FT_UInt
881  (*FT_Face_GetGlyphNameIndexFunc)( FT_Face face,
882  FT_String* glyph_name );
883 
884 
885 #ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
886 
887  /*************************************************************************/
888  /* */
889  /* <Function> */
890  /* FT_New_Memory */
891  /* */
892  /* <Description> */
893  /* Creates a new memory object. */
894  /* */
895  /* <Return> */
896  /* A pointer to the new memory object. 0 in case of error. */
897  /* */
898  FT_BASE( FT_Memory )
899  FT_New_Memory( void );
900 
901 
902  /*************************************************************************/
903  /* */
904  /* <Function> */
905  /* FT_Done_Memory */
906  /* */
907  /* <Description> */
908  /* Discards memory manager. */
909  /* */
910  /* <Input> */
911  /* memory :: A handle to the memory manager. */
912  /* */
913  FT_BASE( void )
914  FT_Done_Memory( FT_Memory memory );
915 
916 #endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
917 
918 
919  /* Define default raster's interface. The default raster is located in */
920  /* `src/base/ftraster.c'. */
921  /* */
922  /* Client applications can register new rasters through the */
923  /* FT_Set_Raster() API. */
924 
925 #ifndef FT_NO_DEFAULT_RASTER
926  FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;
927 #endif
928 
929  /*************************************************************************/
930  /*************************************************************************/
931  /*************************************************************************/
932  /**** ****/
933  /**** ****/
934  /**** PIC-Support Macros for ftimage.h ****/
935  /**** ****/
936  /**** ****/
937  /*************************************************************************/
938  /*************************************************************************/
939  /*************************************************************************/
940 
941 
942  /*************************************************************************/
943  /* */
944  /* <Macro> */
945  /* FT_DEFINE_OUTLINE_FUNCS */
946  /* */
947  /* <Description> */
948  /* Used to initialize an instance of FT_Outline_Funcs struct. */
949  /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */
950  /* called with a pre-allocated stracture to be filled. */
951  /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
952  /* allocated in the global scope (or the scope where the macro */
953  /* is used). */
954  /* */
955 #ifndef FT_CONFIG_OPTION_PIC
956 
957 #define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \
958  cubic_to_, shift_, delta_) \
959  static const FT_Outline_Funcs class_ = \
960  { \
961  move_to_, line_to_, conic_to_, cubic_to_, shift_, delta_ \
962  };
963 
964 #else /* FT_CONFIG_OPTION_PIC */
965 
966 #define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \
967  cubic_to_, shift_, delta_) \
968  static FT_Error \
969  Init_Class_##class_( FT_Outline_Funcs* clazz ) \
970  { \
971  clazz->move_to = move_to_; \
972  clazz->line_to = line_to_; \
973  clazz->conic_to = conic_to_; \
974  clazz->cubic_to = cubic_to_; \
975  clazz->shift = shift_; \
976  clazz->delta = delta_; \
977  return FT_Err_Ok; \
978  }
979 
980 #endif /* FT_CONFIG_OPTION_PIC */
981 
982  /*************************************************************************/
983  /* */
984  /* <Macro> */
985  /* FT_DEFINE_RASTER_FUNCS */
986  /* */
987  /* <Description> */
988  /* Used to initialize an instance of FT_Raster_Funcs struct. */
989  /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */
990  /* called with a pre-allocated stracture to be filled. */
991  /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
992  /* allocated in the global scope (or the scope where the macro */
993  /* is used). */
994  /* */
995 #ifndef FT_CONFIG_OPTION_PIC
996 
997 #define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \
998  raster_reset_, raster_set_mode_, \
999  raster_render_, raster_done_) \
1000  const FT_Raster_Funcs class_ = \
1001  { \
1002  glyph_format_, raster_new_, raster_reset_, \
1003  raster_set_mode_, raster_render_, raster_done_ \
1004  };
1005 
1006 #else /* FT_CONFIG_OPTION_PIC */
1007 
1008 #define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \
1009  raster_reset_, raster_set_mode_, raster_render_, raster_done_) \
1010  void \
1011  FT_Init_Class_##class_( FT_Raster_Funcs* clazz ) \
1012  { \
1013  clazz->glyph_format = glyph_format_; \
1014  clazz->raster_new = raster_new_; \
1015  clazz->raster_reset = raster_reset_; \
1016  clazz->raster_set_mode = raster_set_mode_; \
1017  clazz->raster_render = raster_render_; \
1018  clazz->raster_done = raster_done_; \
1019  }
1020 
1021 #endif /* FT_CONFIG_OPTION_PIC */
1022 
1023  /*************************************************************************/
1024  /*************************************************************************/
1025  /*************************************************************************/
1026  /**** ****/
1027  /**** ****/
1028  /**** PIC-Support Macros for ftrender.h ****/
1029  /**** ****/
1030  /**** ****/
1031  /*************************************************************************/
1032  /*************************************************************************/
1033  /*************************************************************************/
1034 
1035 
1036 
1037  /*************************************************************************/
1038  /* */
1039  /* <Macro> */
1040  /* FT_DEFINE_GLYPH */
1041  /* */
1042  /* <Description> */
1043  /* Used to initialize an instance of FT_Glyph_Class struct. */
1044  /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */
1045  /* called with a pre-allocated stracture to be filled. */
1046  /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
1047  /* allocated in the global scope (or the scope where the macro */
1048  /* is used). */
1049  /* */
1050 #ifndef FT_CONFIG_OPTION_PIC
1051 
1052 #define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \
1053  transform_, bbox_, prepare_) \
1054  FT_CALLBACK_TABLE_DEF \
1055  const FT_Glyph_Class class_ = \
1056  { \
1057  size_, format_, init_, done_, copy_, transform_, bbox_, prepare_ \
1058  };
1059 
1060 #else /* FT_CONFIG_OPTION_PIC */
1061 
1062 #define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \
1063  transform_, bbox_, prepare_) \
1064  void \
1065  FT_Init_Class_##class_( FT_Glyph_Class* clazz ) \
1066  { \
1067  clazz->glyph_size = size_; \
1068  clazz->glyph_format = format_; \
1069  clazz->glyph_init = init_; \
1070  clazz->glyph_done = done_; \
1071  clazz->glyph_copy = copy_; \
1072  clazz->glyph_transform = transform_; \
1073  clazz->glyph_bbox = bbox_; \
1074  clazz->glyph_prepare = prepare_; \
1075  }
1076 
1077 #endif /* FT_CONFIG_OPTION_PIC */
1078 
1079  /*************************************************************************/
1080  /* */
1081  /* <Macro> */
1082  /* FT_DECLARE_RENDERER */
1083  /* */
1084  /* <Description> */
1085  /* Used to create a forward declaration of a */
1086  /* FT_Renderer_Class stract instance. */
1087  /* */
1088  /* <Macro> */
1089  /* FT_DEFINE_RENDERER */
1090  /* */
1091  /* <Description> */
1092  /* Used to initialize an instance of FT_Renderer_Class struct. */
1093  /* */
1094  /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */
1095  /* to called with a pointer where the allocated stracture is returned.*/
1096  /* And when it is no longer needed a Destroy function needs */
1097  /* to be called to release that allocation. */
1098  /* fcinit.c (ft_create_default_module_classes) already contains */
1099  /* a mechanism to call these functions for the default modules */
1100  /* described in ftmodule.h */
1101  /* */
1102  /* Notice that the created Create and Destroy functions call */
1103  /* pic_init and pic_free function to allow you to manually allocate */
1104  /* and initialize any additional global data, like module specific */
1105  /* interface, and put them in the global pic container defined in */
1106  /* ftpic.h. if you don't need them just implement the functions as */
1107  /* empty to resolve the link error. Also the pic_init and pic_free */
1108  /* functions should be declared in pic.h, to be referred by renderer */
1109  /* definition calling FT_DEFINE_RENDERER() in following. */
1110  /* */
1111  /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
1112  /* allocated in the global scope (or the scope where the macro */
1113  /* is used). */
1114  /* */
1115 #ifndef FT_CONFIG_OPTION_PIC
1116 
1117 #define FT_DECLARE_RENDERER(class_) \
1118  FT_EXPORT_VAR( const FT_Renderer_Class ) class_;
1119 
1120 #define FT_DEFINE_RENDERER(class_, \
1121  flags_, size_, name_, version_, requires_, \
1122  interface_, init_, done_, get_interface_, \
1123  glyph_format_, render_glyph_, transform_glyph_, \
1124  get_glyph_cbox_, set_mode_, raster_class_ ) \
1125  FT_CALLBACK_TABLE_DEF \
1126  const FT_Renderer_Class class_ = \
1127  { \
1128  FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \
1129  interface_,init_,done_,get_interface_) \
1130  glyph_format_, \
1131  \
1132  render_glyph_, \
1133  transform_glyph_, \
1134  get_glyph_cbox_, \
1135  set_mode_, \
1136  \
1137  raster_class_ \
1138  };
1139 
1140 #else /* FT_CONFIG_OPTION_PIC */
1141 
1142 #define FT_DECLARE_RENDERER(class_) FT_DECLARE_MODULE(class_)
1143 
1144 #define FT_DEFINE_RENDERER(class_, \
1145  flags_, size_, name_, version_, requires_, \
1146  interface_, init_, done_, get_interface_, \
1147  glyph_format_, render_glyph_, transform_glyph_, \
1148  get_glyph_cbox_, set_mode_, raster_class_ ) \
1149  \
1150  void \
1151  FT_Destroy_Class_##class_( FT_Library library, \
1152  FT_Module_Class* clazz ) \
1153  { \
1154  FT_Renderer_Class* rclazz = (FT_Renderer_Class*)clazz; \
1155  FT_Memory memory = library->memory; \
1156  class_##_pic_free( library ); \
1157  if ( rclazz ) \
1158  FT_FREE( rclazz ); \
1159  } \
1160  \
1161  FT_Error \
1162  FT_Create_Class_##class_( FT_Library library, \
1163  FT_Module_Class** output_class ) \
1164  { \
1165  FT_Renderer_Class* clazz; \
1166  FT_Error error; \
1167  FT_Memory memory = library->memory; \
1168  \
1169  if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \
1170  return error; \
1171  \
1172  error = class_##_pic_init( library ); \
1173  if(error) \
1174  { \
1175  FT_FREE( clazz ); \
1176  return error; \
1177  } \
1178  \
1179  FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \
1180  interface_,init_,done_,get_interface_) \
1181  \
1182  clazz->glyph_format = glyph_format_; \
1183  \
1184  clazz->render_glyph = render_glyph_; \
1185  clazz->transform_glyph = transform_glyph_; \
1186  clazz->get_glyph_cbox = get_glyph_cbox_; \
1187  clazz->set_mode = set_mode_; \
1188  \
1189  clazz->raster_class = raster_class_; \
1190  \
1191  *output_class = (FT_Module_Class*)clazz; \
1192  return FT_Err_Ok; \
1193  }
1194 
1195 
1196 
1197 #endif /* FT_CONFIG_OPTION_PIC */
1198 
1199  /*************************************************************************/
1200  /*************************************************************************/
1201  /*************************************************************************/
1202  /**** ****/
1203  /**** ****/
1204  /**** PIC-Support Macros for ftmodapi.h ****/
1205  /**** ****/
1206  /**** ****/
1207  /*************************************************************************/
1208  /*************************************************************************/
1209  /*************************************************************************/
1210 
1211 
1212 #ifdef FT_CONFIG_OPTION_PIC
1213 
1214  /*************************************************************************/
1215  /* */
1216  /* <FuncType> */
1217  /* FT_Module_Creator */
1218  /* */
1219  /* <Description> */
1220  /* A function used to create (allocate) a new module class object. */
1221  /* The object's members are initialized, but the module itself is */
1222  /* not. */
1223  /* */
1224  /* <Input> */
1225  /* memory :: A handle to the memory manager. */
1226  /* output_class :: Initialized with the newly allocated class. */
1227  /* */
1228  typedef FT_Error
1229  (*FT_Module_Creator)( FT_Memory memory,
1230  FT_Module_Class** output_class );
1231 
1232  /*************************************************************************/
1233  /* */
1234  /* <FuncType> */
1235  /* FT_Module_Destroyer */
1236  /* */
1237  /* <Description> */
1238  /* A function used to destroy (deallocate) a module class object. */
1239  /* */
1240  /* <Input> */
1241  /* memory :: A handle to the memory manager. */
1242  /* clazz :: Module class to destroy. */
1243  /* */
1244  typedef void
1245  (*FT_Module_Destroyer)( FT_Memory memory,
1246  FT_Module_Class* clazz );
1247 
1248 #endif
1249 
1250  /*************************************************************************/
1251  /* */
1252  /* <Macro> */
1253  /* FT_DECLARE_MODULE */
1254  /* */
1255  /* <Description> */
1256  /* Used to create a forward declaration of a */
1257  /* FT_Module_Class stract instance. */
1258  /* */
1259  /* <Macro> */
1260  /* FT_DEFINE_MODULE */
1261  /* */
1262  /* <Description> */
1263  /* Used to initialize an instance of FT_Module_Class struct. */
1264  /* */
1265  /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */
1266  /* to called with a pointer where the allocated stracture is returned.*/
1267  /* And when it is no longer needed a Destroy function needs */
1268  /* to be called to release that allocation. */
1269  /* fcinit.c (ft_create_default_module_classes) already contains */
1270  /* a mechanism to call these functions for the default modules */
1271  /* described in ftmodule.h */
1272  /* */
1273  /* Notice that the created Create and Destroy functions call */
1274  /* pic_init and pic_free function to allow you to manually allocate */
1275  /* and initialize any additional global data, like module specific */
1276  /* interface, and put them in the global pic container defined in */
1277  /* ftpic.h. if you don't need them just implement the functions as */
1278  /* empty to resolve the link error. Also the pic_init and pic_free */
1279  /* functions should be declared in pic.h, to be referred by module */
1280  /* definition calling FT_DEFINE_MODULE() in following. */
1281  /* */
1282  /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
1283  /* allocated in the global scope (or the scope where the macro */
1284  /* is used). */
1285  /* */
1286  /* <Macro> */
1287  /* FT_DEFINE_ROOT_MODULE */
1288  /* */
1289  /* <Description> */
1290  /* Used to initialize an instance of FT_Module_Class struct inside */
1291  /* another stract that contains it or in a function that initializes */
1292  /* that containing stract */
1293  /* */
1294 #ifndef FT_CONFIG_OPTION_PIC
1295 
1296 #define FT_DECLARE_MODULE(class_) \
1297  FT_CALLBACK_TABLE \
1298  const FT_Module_Class class_; \
1299 
1300 #define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \
1301  interface_, init_, done_, get_interface_) \
1302  { \
1303  flags_, \
1304  size_, \
1305  \
1306  name_, \
1307  version_, \
1308  requires_, \
1309  \
1310  interface_, \
1311  \
1312  init_, \
1313  done_, \
1314  get_interface_, \
1315  },
1316 
1317 #define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \
1318  interface_, init_, done_, get_interface_) \
1319  FT_CALLBACK_TABLE_DEF \
1320  const FT_Module_Class class_ = \
1321  { \
1322  flags_, \
1323  size_, \
1324  \
1325  name_, \
1326  version_, \
1327  requires_, \
1328  \
1329  interface_, \
1330  \
1331  init_, \
1332  done_, \
1333  get_interface_, \
1334  };
1335 
1336 
1337 #else /* FT_CONFIG_OPTION_PIC */
1338 
1339 #define FT_DECLARE_MODULE(class_) \
1340  FT_Error FT_Create_Class_##class_( FT_Library library, \
1341  FT_Module_Class** output_class ); \
1342  void FT_Destroy_Class_##class_( FT_Library library, \
1343  FT_Module_Class* clazz );
1344 
1345 #define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \
1346  interface_, init_, done_, get_interface_) \
1347  clazz->root.module_flags = flags_; \
1348  clazz->root.module_size = size_; \
1349  clazz->root.module_name = name_; \
1350  clazz->root.module_version = version_; \
1351  clazz->root.module_requires = requires_; \
1352  \
1353  clazz->root.module_interface = interface_; \
1354  \
1355  clazz->root.module_init = init_; \
1356  clazz->root.module_done = done_; \
1357  clazz->root.get_interface = get_interface_;
1358 
1359 #define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \
1360  interface_, init_, done_, get_interface_) \
1361  \
1362  void \
1363  FT_Destroy_Class_##class_( FT_Library library, \
1364  FT_Module_Class* clazz ) \
1365  { \
1366  FT_Memory memory = library->memory; \
1367  class_##_pic_free( library ); \
1368  if ( clazz ) \
1369  FT_FREE( clazz ); \
1370  } \
1371  \
1372  FT_Error \
1373  FT_Create_Class_##class_( FT_Library library, \
1374  FT_Module_Class** output_class ) \
1375  { \
1376  FT_Memory memory = library->memory; \
1377  FT_Module_Class* clazz; \
1378  FT_Error error; \
1379  \
1380  if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \
1381  return error; \
1382  error = class_##_pic_init( library ); \
1383  if(error) \
1384  { \
1385  FT_FREE( clazz ); \
1386  return error; \
1387  } \
1388  \
1389  clazz->module_flags = flags_; \
1390  clazz->module_size = size_; \
1391  clazz->module_name = name_; \
1392  clazz->module_version = version_; \
1393  clazz->module_requires = requires_; \
1394  \
1395  clazz->module_interface = interface_; \
1396  \
1397  clazz->module_init = init_; \
1398  clazz->module_done = done_; \
1399  clazz->get_interface = get_interface_; \
1400  \
1401  *output_class = clazz; \
1402  return FT_Err_Ok; \
1403  }
1404 
1405 #endif /* FT_CONFIG_OPTION_PIC */
1406 
1407 
1408 FT_END_HEADER
1409 
1410 #endif /* __FTOBJS_H__ */
1411 
1412 
1413 /* END */
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