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ftconfig.h
1/***************************************************************************/
2/* */
3/* ftconfig.h */
4/* */
5/* ANSI-specific configuration file (specification only). */
6/* */
7/* Copyright 1996-2016 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
46FT_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 /*************************************************************************/
147 /* */
148 /* <Section> */
149 /* basic_types */
150 /* */
151 /*************************************************************************/
152
153
154 /*************************************************************************/
155 /* */
156 /* <Type> */
157 /* FT_Int16 */
158 /* */
159 /* <Description> */
160 /* A typedef for a 16bit signed integer type. */
161 /* */
162 typedef signed short FT_Int16;
163
164
165 /*************************************************************************/
166 /* */
167 /* <Type> */
168 /* FT_UInt16 */
169 /* */
170 /* <Description> */
171 /* A typedef for a 16bit unsigned integer type. */
172 /* */
173 typedef unsigned short FT_UInt16;
174
175 /* */
176
177
178 /* this #if 0 ... #endif clause is for documentation purposes */
179#if 0
180
181 /*************************************************************************/
182 /* */
183 /* <Type> */
184 /* FT_Int32 */
185 /* */
186 /* <Description> */
187 /* A typedef for a 32bit signed integer type. The size depends on */
188 /* the configuration. */
189 /* */
190 typedef signed XXX FT_Int32;
191
192
193 /*************************************************************************/
194 /* */
195 /* <Type> */
196 /* FT_UInt32 */
197 /* */
198 /* A typedef for a 32bit unsigned integer type. The size depends on */
199 /* the configuration. */
200 /* */
201 typedef unsigned XXX FT_UInt32;
202
203
204 /*************************************************************************/
205 /* */
206 /* <Type> */
207 /* FT_Int64 */
208 /* */
209 /* A typedef for a 64bit signed integer type. The size depends on */
210 /* the configuration. Only defined if there is real 64bit support; */
211 /* otherwise, it gets emulated with a structure (if necessary). */
212 /* */
213 typedef signed XXX FT_Int64;
214
215
216 /*************************************************************************/
217 /* */
218 /* <Type> */
219 /* FT_UInt64 */
220 /* */
221 /* A typedef for a 64bit unsigned integer type. The size depends on */
222 /* the configuration. Only defined if there is real 64bit support; */
223 /* otherwise, it gets emulated with a structure (if necessary). */
224 /* */
225 typedef unsigned XXX FT_UInt64;
226
227 /* */
228
229#endif
230
231#if FT_SIZEOF_INT == (32 / FT_CHAR_BIT)
232
233 typedef signed int FT_Int32;
234 typedef unsigned int FT_UInt32;
235
236#elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT)
237
238 typedef signed long FT_Int32;
239 typedef unsigned long FT_UInt32;
240
241#else
242#error "no 32bit type found -- please check your configuration files"
243#endif
244
245
246 /* look up an integer type that is at least 32 bits */
247#if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT)
248
249 typedef int FT_Fast;
250 typedef unsigned int FT_UFast;
251
252#elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT)
253
254 typedef long FT_Fast;
255 typedef unsigned long FT_UFast;
256
257#endif
258
259
260 /* determine whether we have a 64-bit int type for platforms without */
261 /* Autoconf */
262#if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT)
263
264 /* FT_LONG64 must be defined if a 64-bit type is available */
265#define FT_LONG64
266#define FT_INT64 long
267#define FT_UINT64 unsigned long
268
269 /*************************************************************************/
270 /* */
271 /* A 64-bit data type may create compilation problems if you compile */
272 /* in strict ANSI mode. To avoid them, we disable other 64-bit data */
273 /* types if __STDC__ is defined. You can however ignore this rule */
274 /* by defining the FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */
275 /* */
276#elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
277
278#if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L
279
280#define FT_LONG64
281#define FT_INT64 long long int
282#define FT_UINT64 unsigned long long int
283
284#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
285
286 /* this compiler provides the __int64 type */
287#define FT_LONG64
288#define FT_INT64 __int64
289#define FT_UINT64 unsigned __int64
290
291#elif defined( __BORLANDC__ ) /* Borland C++ */
292
293 /* XXXX: We should probably check the value of __BORLANDC__ in order */
294 /* to test the compiler version. */
295
296 /* this compiler provides the __int64 type */
297#define FT_LONG64
298#define FT_INT64 __int64
299#define FT_UINT64 unsigned __int64
300
301#elif defined( __WATCOMC__ ) /* Watcom C++ */
302
303 /* Watcom doesn't provide 64-bit data types */
304
305#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
306
307#define FT_LONG64
308#define FT_INT64 long long int
309#define FT_UINT64 unsigned long long int
310
311#elif defined( __GNUC__ )
312
313 /* GCC provides the `long long' type */
314#define FT_LONG64
315#define FT_INT64 long long int
316#define FT_UINT64 unsigned long long int
317
318#endif /* __STDC_VERSION__ >= 199901L */
319
320#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
321
322#ifdef FT_LONG64
323 typedef FT_INT64 FT_Int64;
324 typedef FT_UINT64 FT_UInt64;
325#endif
326
327
328 /*************************************************************************/
329 /* */
330 /* miscellaneous */
331 /* */
332 /*************************************************************************/
333
334
335#define FT_BEGIN_STMNT do {
336#define FT_END_STMNT } while ( 0 )
337#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
338
339
340 /* typeof condition taken from gnulib's `intprops.h' header file */
341#if ( __GNUC__ >= 2 || \
342 defined( __IBM__TYPEOF__ ) || \
343 ( __SUNPRO_C >= 0x5110 && !__STDC__ ) )
344#define FT_TYPEOF( type ) (__typeof__ (type))
345#else
346#define FT_TYPEOF( type ) /* empty */
347#endif
348
349
350#ifdef FT_MAKE_OPTION_SINGLE_OBJECT
351
352#define FT_LOCAL( x ) static x
353#define FT_LOCAL_DEF( x ) static x
354
355#else
356
357#ifdef __cplusplus
358#define FT_LOCAL( x ) extern "C" x
359#define FT_LOCAL_DEF( x ) extern "C" x
360#else
361#define FT_LOCAL( x ) extern x
362#define FT_LOCAL_DEF( x ) x
363#endif
364
365#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
366
367#define FT_LOCAL_ARRAY( x ) extern const x
368#define FT_LOCAL_ARRAY_DEF( x ) const x
369
370
371#ifndef FT_BASE
372
373#ifdef __cplusplus
374#define FT_BASE( x ) extern "C" x
375#else
376#define FT_BASE( x ) extern x
377#endif
378
379#endif /* !FT_BASE */
380
381
382#ifndef FT_BASE_DEF
383
384#ifdef __cplusplus
385#define FT_BASE_DEF( x ) x
386#else
387#define FT_BASE_DEF( x ) x
388#endif
389
390#endif /* !FT_BASE_DEF */
391
392
393#ifndef FT_EXPORT
394
395#ifdef __cplusplus
396#define FT_EXPORT( x ) extern "C" x
397#else
398#define FT_EXPORT( x ) extern x
399#endif
400
401#endif /* !FT_EXPORT */
402
403
404#ifndef FT_EXPORT_DEF
405
406#ifdef __cplusplus
407#define FT_EXPORT_DEF( x ) extern "C" x
408#else
409#define FT_EXPORT_DEF( x ) extern x
410#endif
411
412#endif /* !FT_EXPORT_DEF */
413
414
415#ifndef FT_EXPORT_VAR
416
417#ifdef __cplusplus
418#define FT_EXPORT_VAR( x ) extern "C" x
419#else
420#define FT_EXPORT_VAR( x ) extern x
421#endif
422
423#endif /* !FT_EXPORT_VAR */
424
425 /* The following macros are needed to compile the library with a */
426 /* C++ compiler and with 16bit compilers. */
427 /* */
428
429 /* This is special. Within C++, you must specify `extern "C"' for */
430 /* functions which are used via function pointers, and you also */
431 /* must do that for structures which contain function pointers to */
432 /* assure C linkage -- it's not possible to have (local) anonymous */
433 /* functions which are accessed by (global) function pointers. */
434 /* */
435 /* */
436 /* FT_CALLBACK_DEF is used to _define_ a callback function. */
437 /* */
438 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
439 /* contains pointers to callback functions. */
440 /* */
441 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */
442 /* that contains pointers to callback functions. */
443 /* */
444 /* */
445 /* Some 16bit compilers have to redefine these macros to insert */
446 /* the infamous `_cdecl' or `__fastcall' declarations. */
447 /* */
448#ifndef FT_CALLBACK_DEF
449#ifdef __cplusplus
450#define FT_CALLBACK_DEF( x ) extern "C" x
451#else
452#define FT_CALLBACK_DEF( x ) static x
453#endif
454#endif /* FT_CALLBACK_DEF */
455
456#ifndef FT_CALLBACK_TABLE
457#ifdef __cplusplus
458#define FT_CALLBACK_TABLE extern "C"
459#define FT_CALLBACK_TABLE_DEF extern "C"
460#else
461#define FT_CALLBACK_TABLE extern
462#define FT_CALLBACK_TABLE_DEF /* nothing */
463#endif
464#endif /* FT_CALLBACK_TABLE */
465
466
467FT_END_HEADER
468
469
470#endif /* FTCONFIG_H_ */
471
472
473/* END */
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