1 /***************************************************************************/
2 /* */
3 /* ftconfig.h */
4 /* */
5 /* ANSI-specific configuration file (specification only). */
6 /* */
7 /* Copyright 1996-2018 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 header file contains a number of macro definitions that are used */
22 /* by the rest of the engine. Most of the macros here are automatically */
23 /* determined at compile time, and you should not need to change it to */
24 /* port FreeType, except to compile the library with a non-ANSI */
25 /* compiler. */
26 /* */
27 /* Note however that if some specific modifications are needed, we */
28 /* advise you to place a modified copy in your build directory. */
29 /* */
30 /* The build directory is usually `builds/<system>', and contains */
31 /* system-specific files that are always included first when building */
32 /* the library. */
33 /* */
34 /* This ANSI version should stay in `include/config/'. */
35 /* */
36 /*************************************************************************/
37
38 #ifndef FTCONFIG_H_
39 #define FTCONFIG_H_
40
41 #include <ft2build.h>
42 #include FT_CONFIG_OPTIONS_H
43 #include FT_CONFIG_STANDARD_LIBRARY_H
44
45
46 FT_BEGIN_HEADER
47
48
49 /*************************************************************************/
50 /* */
51 /* PLATFORM-SPECIFIC CONFIGURATION MACROS */
52 /* */
53 /* These macros can be toggled to suit a specific system. The current */
54 /* ones are defaults used to compile FreeType in an ANSI C environment */
55 /* (16bit compilers are also supported). Copy this file to your own */
56 /* `builds/<system>' directory, and edit it to port the engine. */
57 /* */
58 /*************************************************************************/
59
60
61 /* There are systems (like the Texas Instruments 'C54x) where a `char' */
62 /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */
63 /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */
64 /* is probably unexpected. */
65 /* */
66 /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */
67 /* `char' type. */
68
69 #ifndef FT_CHAR_BIT
70 #define FT_CHAR_BIT CHAR_BIT
71 #endif
72
73
74 /* The size of an `int' type. */
75 #if FT_UINT_MAX == 0xFFFFUL
76 #define FT_SIZEOF_INT ( 16 / FT_CHAR_BIT )
77 #elif FT_UINT_MAX == 0xFFFFFFFFUL
78 #define FT_SIZEOF_INT ( 32 / FT_CHAR_BIT )
79 #elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
80 #define FT_SIZEOF_INT ( 64 / FT_CHAR_BIT )
81 #else
82 #error "Unsupported size of `int' type!"
83 #endif
84
85 /* The size of a `long' type. A five-byte `long' (as used e.g. on the */
86 /* DM642) is recognized but avoided. */
87 #if FT_ULONG_MAX == 0xFFFFFFFFUL
88 #define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
89 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
90 #define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
91 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
92 #define FT_SIZEOF_LONG ( 64 / FT_CHAR_BIT )
93 #else
94 #error "Unsupported size of `long' type!"
95 #endif
96
97
98 /* FT_UNUSED is a macro used to indicate that a given parameter is not */
99 /* used -- this is only used to get rid of unpleasant compiler warnings */
100 #ifndef FT_UNUSED
101 #define FT_UNUSED( arg ) ( (arg) = (arg) )
102 #endif
103
104
105 /*************************************************************************/
106 /* */
107 /* AUTOMATIC CONFIGURATION MACROS */
108 /* */
109 /* These macros are computed from the ones defined above. Don't touch */
110 /* their definition, unless you know precisely what you are doing. No */
111 /* porter should need to mess with them. */
112 /* */
113 /*************************************************************************/
114
115
116 /*************************************************************************/
117 /* */
118 /* Mac support */
119 /* */
120 /* This is the only necessary change, so it is defined here instead */
121 /* providing a new configuration file. */
122 /* */
123 #if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) )
124 /* no Carbon frameworks for 64bit 10.4.x */
125 /* AvailabilityMacros.h is available since Mac OS X 10.2, */
126 /* so guess the system version by maximum errno before inclusion */
127 #include <errno.h>
128 #ifdef ECANCELED /* defined since 10.2 */
129 #include "AvailabilityMacros.h"
130 #endif
131 #if defined( __LP64__ ) && \
132 ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 )
133 #undef FT_MACINTOSH
134 #endif
135
136 #elif defined( __SC__ ) || defined( __MRC__ )
137 /* Classic MacOS compilers */
138 #include "ConditionalMacros.h"
139 #if TARGET_OS_MAC
140 #define FT_MACINTOSH 1
141 #endif
142
143 #endif
144
145
146 /* Fix compiler warning with sgi compiler */
147 #if defined( __sgi ) && !defined( __GNUC__ )
148 #if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
149 #pragma set woff 3505
150 #endif
151 #endif
152
153
154 /*************************************************************************/
155 /* */
156 /* <Section> */
157 /* basic_types */
158 /* */
159 /*************************************************************************/
160
161
162 /*************************************************************************/
163 /* */
164 /* <Type> */
165 /* FT_Int16 */
166 /* */
167 /* <Description> */
168 /* A typedef for a 16bit signed integer type. */
169 /* */
170 typedef signed short FT_Int16;
171
172
173 /*************************************************************************/
174 /* */
175 /* <Type> */
176 /* FT_UInt16 */
177 /* */
178 /* <Description> */
179 /* A typedef for a 16bit unsigned integer type. */
180 /* */
181 typedef unsigned short FT_UInt16;
182
183 /* */
184
185
186 /* this #if 0 ... #endif clause is for documentation purposes */
187 #if 0
188
189 /*************************************************************************/
190 /* */
191 /* <Type> */
192 /* FT_Int32 */
193 /* */
194 /* <Description> */
195 /* A typedef for a 32bit signed integer type. The size depends on */
196 /* the configuration. */
197 /* */
198 typedef signed XXX FT_Int32;
199
200
201 /*************************************************************************/
202 /* */
203 /* <Type> */
204 /* FT_UInt32 */
205 /* */
206 /* A typedef for a 32bit unsigned integer type. The size depends on */
207 /* the configuration. */
208 /* */
209 typedef unsigned XXX FT_UInt32;
210
211
212 /*************************************************************************/
213 /* */
214 /* <Type> */
215 /* FT_Int64 */
216 /* */
217 /* A typedef for a 64bit signed integer type. The size depends on */
218 /* the configuration. Only defined if there is real 64bit support; */
219 /* otherwise, it gets emulated with a structure (if necessary). */
220 /* */
221 typedef signed XXX FT_Int64;
222
223
224 /*************************************************************************/
225 /* */
226 /* <Type> */
227 /* FT_UInt64 */
228 /* */
229 /* A typedef for a 64bit unsigned integer type. The size depends on */
230 /* the configuration. Only defined if there is real 64bit support; */
231 /* otherwise, it gets emulated with a structure (if necessary). */
232 /* */
233 typedef unsigned XXX FT_UInt64;
234
235 /* */
236
237 #endif
238
239 #if FT_SIZEOF_INT == ( 32 / FT_CHAR_BIT )
240
241 typedef signed int FT_Int32;
242 typedef unsigned int FT_UInt32;
243
244 #elif FT_SIZEOF_LONG == ( 32 / FT_CHAR_BIT )
245
246 typedef signed long FT_Int32;
247 typedef unsigned long FT_UInt32;
248
249 #else
250 #error "no 32bit type found -- please check your configuration files"
251 #endif
252
253
254 /* look up an integer type that is at least 32 bits */
255 #if FT_SIZEOF_INT >= ( 32 / FT_CHAR_BIT )
256
257 typedef int FT_Fast;
258 typedef unsigned int FT_UFast;
259
260 #elif FT_SIZEOF_LONG >= ( 32 / FT_CHAR_BIT )
261
262 typedef long FT_Fast;
263 typedef unsigned long FT_UFast;
264
265 #endif
266
267
268 /* determine whether we have a 64-bit int type for platforms without */
269 /* Autoconf */
270 #if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
271
272 /* FT_LONG64 must be defined if a 64-bit type is available */
273 #define FT_LONG64
274 #define FT_INT64 long
275 #define FT_UINT64 unsigned long
276
277 /*************************************************************************/
278 /* */
279 /* A 64-bit data type may create compilation problems if you compile */
280 /* in strict ANSI mode. To avoid them, we disable other 64-bit data */
281 /* types if __STDC__ is defined. You can however ignore this rule */
282 /* by defining the FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */
283 /* */
284 #elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
285
286 #if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L
287
288 #define FT_LONG64
289 #define FT_INT64 long long int
290 #define FT_UINT64 unsigned long long int
291
292 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
293
294 /* this compiler provides the __int64 type */
295 #define FT_LONG64
296 #define FT_INT64 __int64
297 #define FT_UINT64 unsigned __int64
298
299 #elif defined( __BORLANDC__ ) /* Borland C++ */
300
301 /* XXXX: We should probably check the value of __BORLANDC__ in order */
302 /* to test the compiler version. */
303
304 /* this compiler provides the __int64 type */
305 #define FT_LONG64
306 #define FT_INT64 __int64
307 #define FT_UINT64 unsigned __int64
308
309 #elif defined( __WATCOMC__ ) /* Watcom C++ */
310
311 /* Watcom doesn't provide 64-bit data types */
312
313 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
314
315 #define FT_LONG64
316 #define FT_INT64 long long int
317 #define FT_UINT64 unsigned long long int
318
319 #elif defined( __GNUC__ )
320
321 /* GCC provides the `long long' type */
322 #define FT_LONG64
323 #define FT_INT64 long long int
324 #define FT_UINT64 unsigned long long int
325
326 #endif /* __STDC_VERSION__ >= 199901L */
327
328 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
329
330 #ifdef FT_LONG64
331 typedef FT_INT64 FT_Int64;
332 typedef FT_UINT64 FT_UInt64;
333 #endif
334
335
336 #ifdef _WIN64
337 /* only 64bit Windows uses the LLP64 data model, i.e., */
338 /* 32bit integers, 64bit pointers */
339 #define FT_UINT_TO_POINTER( x ) (void*)(unsigned __int64)(x)
340 #else
341 #define FT_UINT_TO_POINTER( x ) (void*)(unsigned long)(x)
342 #endif
343
344
345 /*************************************************************************/
346 /* */
347 /* miscellaneous */
348 /* */
349 /*************************************************************************/
350
351
352 #define FT_BEGIN_STMNT do {
353 #define FT_END_STMNT } while ( 0 )
354 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
355
356
357 /* typeof condition taken from gnulib's `intprops.h' header file */
358 #if ( ( defined( __GNUC__ ) && __GNUC__ >= 2 ) || \
359 ( defined( __IBMC__ ) && __IBMC__ >= 1210 && \
360 defined( __IBM__TYPEOF__ ) ) || \
361 ( defined( __SUNPRO_C ) && __SUNPRO_C >= 0x5110 && !__STDC__ ) )
362 #define FT_TYPEOF( type ) ( __typeof__ ( type ) )
363 #else
364 #define FT_TYPEOF( type ) /* empty */
365 #endif
366
367
368 /* Use FT_LOCAL and FT_LOCAL_DEF to declare and define, respectively, */
369 /* a function that gets used only within the scope of a module. */
370 /* Normally, both the header and source code files for such a */
371 /* function are within a single module directory. */
372 /* */
373 /* Intra-module arrays should be tagged with FT_LOCAL_ARRAY and */
374 /* FT_LOCAL_ARRAY_DEF. */
375 /* */
376 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT
377
378 #define FT_LOCAL( x ) static x
379 #define FT_LOCAL_DEF( x ) static x
380
381 #else
382
383 #ifdef __cplusplus
384 #define FT_LOCAL( x ) extern "C" x
385 #define FT_LOCAL_DEF( x ) extern "C" x
386 #else
387 #define FT_LOCAL( x ) extern x
388 #define FT_LOCAL_DEF( x ) x
389 #endif
390
391 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
392
393 #define FT_LOCAL_ARRAY( x ) extern const x
394 #define FT_LOCAL_ARRAY_DEF( x ) const x
395
396
397 /* Use FT_BASE and FT_BASE_DEF to declare and define, respectively, */
398 /* functions that are used in more than a single module. In the */
399 /* current setup this implies that the declaration is in a header */
400 /* file in the `include/freetype/internal' directory, and the */
401 /* function body is in a file in `src/base'. */
402 /* */
403 #ifndef FT_BASE
404
405 #ifdef __cplusplus
406 #define FT_BASE( x ) extern "C" x
407 #else
408 #define FT_BASE( x ) extern x
409 #endif
410
411 #endif /* !FT_BASE */
412
413
414 #ifndef FT_BASE_DEF
415
416 #ifdef __cplusplus
417 #define FT_BASE_DEF( x ) x
418 #else
419 #define FT_BASE_DEF( x ) x
420 #endif
421
422 #endif /* !FT_BASE_DEF */
423
424
425 /* When compiling FreeType as a DLL or DSO with hidden visibility */
426 /* some systems/compilers need a special attribute in front OR after */
427 /* the return type of function declarations. */
428 /* */
429 /* Two macros are used within the FreeType source code to define */
430 /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */
431 /* */
432 /* FT_EXPORT( return_type ) */
433 /* */
434 /* is used in a function declaration, as in */
435 /* */
436 /* FT_EXPORT( FT_Error ) */
437 /* FT_Init_FreeType( FT_Library* alibrary ); */
438 /* */
439 /* */
440 /* FT_EXPORT_DEF( return_type ) */
441 /* */
442 /* is used in a function definition, as in */
443 /* */
444 /* FT_EXPORT_DEF( FT_Error ) */
445 /* FT_Init_FreeType( FT_Library* alibrary ) */
446 /* { */
447 /* ... some code ... */
448 /* return FT_Err_Ok; */
449 /* } */
450 /* */
451 /* You can provide your own implementation of FT_EXPORT and */
452 /* FT_EXPORT_DEF here if you want. */
453 /* */
454 /* To export a variable, use FT_EXPORT_VAR. */
455 /* */
456 #ifndef FT_EXPORT
457
458 #ifdef FT2_BUILD_LIBRARY
459
460 #if defined( _WIN32 ) && ( defined( _DLL ) || defined( DLL_EXPORT ) )
461 #define FT_EXPORT( x ) __declspec( dllexport ) x
462 #elif defined( __GNUC__ ) && __GNUC__ >= 4
463 #define FT_EXPORT( x ) __attribute__(( visibility( "default" ) )) x
464 #elif defined( __cplusplus )
465 #define FT_EXPORT( x ) extern "C" x
466 #else
467 #define FT_EXPORT( x ) extern x
468 #endif
469
470 #else
471
472 #if defined( FT2_DLLIMPORT )
473 #define FT_EXPORT( x ) __declspec( dllimport ) x
474 #elif defined( __cplusplus )
475 #define FT_EXPORT( x ) extern "C" x
476 #else
477 #define FT_EXPORT( x ) extern x
478 #endif
479
480 #endif
481
482 #endif /* !FT_EXPORT */
483
484
485 #ifndef FT_EXPORT_DEF
486
487 #ifdef __cplusplus
488 #define FT_EXPORT_DEF( x ) extern "C" x
489 #else
490 #define FT_EXPORT_DEF( x ) extern x
491 #endif
492
493 #endif /* !FT_EXPORT_DEF */
494
495
496 #ifndef FT_EXPORT_VAR
497
498 #ifdef __cplusplus
499 #define FT_EXPORT_VAR( x ) extern "C" x
500 #else
501 #define FT_EXPORT_VAR( x ) extern x
502 #endif
503
504 #endif /* !FT_EXPORT_VAR */
505
506
507 /* The following macros are needed to compile the library with a */
508 /* C++ compiler and with 16bit compilers. */
509 /* */
510
511 /* This is special. Within C++, you must specify `extern "C"' for */
512 /* functions which are used via function pointers, and you also */
513 /* must do that for structures which contain function pointers to */
514 /* assure C linkage -- it's not possible to have (local) anonymous */
515 /* functions which are accessed by (global) function pointers. */
516 /* */
517 /* */
518 /* FT_CALLBACK_DEF is used to _define_ a callback function, */
519 /* located in the same source code file as the structure that uses */
520 /* it. */
521 /* */
522 /* FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare */
523 /* and define a callback function, respectively, in a similar way */
524 /* as FT_BASE and FT_BASE_DEF work. */
525 /* */
526 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
527 /* contains pointers to callback functions. */
528 /* */
529 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */
530 /* that contains pointers to callback functions. */
531 /* */
532 /* */
533 /* Some 16bit compilers have to redefine these macros to insert */
534 /* the infamous `_cdecl' or `__fastcall' declarations. */
535 /* */
536 #ifndef FT_CALLBACK_DEF
537 #ifdef __cplusplus
538 #define FT_CALLBACK_DEF( x ) extern "C" x
539 #else
540 #define FT_CALLBACK_DEF( x ) static x
541 #endif
542 #endif /* FT_CALLBACK_DEF */
543
544 #ifndef FT_BASE_CALLBACK
545 #ifdef __cplusplus
546 #define FT_BASE_CALLBACK( x ) extern "C" x
547 #define FT_BASE_CALLBACK_DEF( x ) extern "C" x
548 #else
549 #define FT_BASE_CALLBACK( x ) extern x
550 #define FT_BASE_CALLBACK_DEF( x ) x
551 #endif
552 #endif /* FT_BASE_CALLBACK */
553
554 #ifndef FT_CALLBACK_TABLE
555 #ifdef __cplusplus
556 #define FT_CALLBACK_TABLE extern "C"
557 #define FT_CALLBACK_TABLE_DEF extern "C"
558 #else
559 #define FT_CALLBACK_TABLE extern
560 #define FT_CALLBACK_TABLE_DEF /* nothing */
561 #endif
562 #endif /* FT_CALLBACK_TABLE */
563
564
565 FT_END_HEADER
566
567
568 #endif /* FTCONFIG_H_ */
569
570
571 /* END */