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[reactos.git] / reactos / lib / 3rdparty / freetype / include / freetype / config / ftconfig.h
1 /***************************************************************************/
2 /* */
3 /* ftconfig.h */
4 /* */
5 /* ANSI-specific configuration file (specification only). */
6 /* */
7 /* Copyright 1996-2004, 2006-2008, 2010-2011, 2013 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
9 /* */
10 /* This file is part of the FreeType project, and may only be used, */
11 /* modified, and distributed under the terms of the FreeType project */
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13 /* this file you indicate that you have read the license and */
14 /* understand and accept it fully. */
15 /* */
16 /***************************************************************************/
17
18
19 /*************************************************************************/
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 `freetype/builds/<system>', and */
31 /* contains system-specific files that are always included first when */
32 /* building the library. */
33 /* */
34 /* This ANSI version should stay in `include/freetype/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 /* `freetype/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 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
270
271 /* this compiler provides the __int64 type */
272 #define FT_LONG64
273 #define FT_INT64 __int64
274 #define FT_UINT64 unsigned __int64
275
276 #elif defined( __BORLANDC__ ) /* Borland C++ */
277
278 /* XXXX: We should probably check the value of __BORLANDC__ in order */
279 /* to test the compiler version. */
280
281 /* this compiler provides the __int64 type */
282 #define FT_LONG64
283 #define FT_INT64 __int64
284 #define FT_UINT64 unsigned __int64
285
286 #elif defined( __WATCOMC__ ) /* Watcom C++ */
287
288 /* Watcom doesn't provide 64-bit data types */
289
290 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
291
292 #define FT_LONG64
293 #define FT_INT64 long long int
294 #define FT_UINT64 unsigned long long int
295
296 #elif defined( __GNUC__ )
297
298 /* GCC provides the `long long' type */
299 #define FT_LONG64
300 #define FT_INT64 long long int
301 #define FT_UINT64 unsigned long long int
302
303 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
304
305
306 /*************************************************************************/
307 /* */
308 /* A 64-bit data type will create compilation problems if you compile */
309 /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */
310 /* is defined. You can however ignore this rule by defining the */
311 /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */
312 /* */
313 #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 )
314
315 #ifdef __STDC__
316
317 /* undefine the 64-bit macros in strict ANSI compilation mode */
318 #undef FT_LONG64
319 #undef FT_INT64
320
321 #endif /* __STDC__ */
322
323 #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */
324
325 #ifdef FT_LONG64
326 typedef FT_INT64 FT_Int64;
327 typedef FT_UINT64 FT_UInt64;
328 #endif
329
330
331 #define FT_BEGIN_STMNT do {
332 #define FT_END_STMNT } while ( 0 )
333 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
334
335
336 #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
337 /* Provide assembler fragments for performance-critical functions. */
338 /* These must be defined `static __inline__' with GCC. */
339
340 #if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */
341 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm
342
343 /* documentation is in freetype.h */
344
345 static __inline FT_Int32
346 FT_MulFix_arm( FT_Int32 a,
347 FT_Int32 b )
348 {
349 register FT_Int32 t, t2;
350
351
352 __asm
353 {
354 smull t2, t, b, a /* (lo=t2,hi=t) = a*b */
355 mov a, t, asr #31 /* a = (hi >> 31) */
356 add a, a, #0x8000 /* a += 0x8000 */
357 adds t2, t2, a /* t2 += a */
358 adc t, t, #0 /* t += carry */
359 mov a, t2, lsr #16 /* a = t2 >> 16 */
360 orr a, a, t, lsl #16 /* a |= t << 16 */
361 }
362 return a;
363 }
364
365 #endif /* __CC_ARM || __ARMCC__ */
366
367
368 #ifdef __GNUC__
369
370 #if defined( __arm__ ) && !defined( __thumb__ ) && \
371 !( defined( __CC_ARM ) || defined( __ARMCC__ ) )
372 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm
373
374 /* documentation is in freetype.h */
375
376 static __inline__ FT_Int32
377 FT_MulFix_arm( FT_Int32 a,
378 FT_Int32 b )
379 {
380 register FT_Int32 t, t2;
381
382
383 __asm__ __volatile__ (
384 "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */
385 "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */
386 "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
387 "adds %1, %1, %0\n\t" /* %1 += %0 */
388 "adc %2, %2, #0\n\t" /* %2 += carry */
389 "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */
390 "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */
391 : "=r"(a), "=&r"(t2), "=&r"(t)
392 : "r"(a), "r"(b)
393 : "cc" );
394 return a;
395 }
396
397 #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */
398
399 #if defined( __i386__ )
400 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386
401
402 /* documentation is in freetype.h */
403
404 static __inline__ FT_Int32
405 FT_MulFix_i386( FT_Int32 a,
406 FT_Int32 b )
407 {
408 register FT_Int32 result;
409
410
411 __asm__ __volatile__ (
412 "imul %%edx\n"
413 "movl %%edx, %%ecx\n"
414 "sarl $31, %%ecx\n"
415 "addl $0x8000, %%ecx\n"
416 "addl %%ecx, %%eax\n"
417 "adcl $0, %%edx\n"
418 "shrl $16, %%eax\n"
419 "shll $16, %%edx\n"
420 "addl %%edx, %%eax\n"
421 : "=a"(result), "=d"(b)
422 : "a"(a), "d"(b)
423 : "%ecx", "cc" );
424 return result;
425 }
426
427 #endif /* i386 */
428
429 #endif /* __GNUC__ */
430
431
432 #ifdef _MSC_VER /* Visual C++ */
433
434 #ifdef _M_IX86
435
436 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386
437
438 /* documentation is in freetype.h */
439
440 static __inline FT_Int32
441 FT_MulFix_i386( FT_Int32 a,
442 FT_Int32 b )
443 {
444 register FT_Int32 result;
445
446 __asm
447 {
448 mov eax, a
449 mov edx, b
450 imul edx
451 mov ecx, edx
452 sar ecx, 31
453 add ecx, 8000h
454 add eax, ecx
455 adc edx, 0
456 shr eax, 16
457 shl edx, 16
458 add eax, edx
459 mov result, eax
460 }
461 return result;
462 }
463
464 #endif /* _M_IX86 */
465
466 #endif /* _MSC_VER */
467
468 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
469
470
471 #ifdef FT_CONFIG_OPTION_INLINE_MULFIX
472 #ifdef FT_MULFIX_ASSEMBLER
473 #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER
474 #endif
475 #endif
476
477
478 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT
479
480 #define FT_LOCAL( x ) static x
481 #define FT_LOCAL_DEF( x ) static x
482
483 #else
484
485 #ifdef __cplusplus
486 #define FT_LOCAL( x ) extern "C" x
487 #define FT_LOCAL_DEF( x ) extern "C" x
488 #else
489 #define FT_LOCAL( x ) extern x
490 #define FT_LOCAL_DEF( x ) x
491 #endif
492
493 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
494
495
496 #ifndef FT_BASE
497
498 #ifdef __cplusplus
499 #define FT_BASE( x ) extern "C" x
500 #else
501 #define FT_BASE( x ) extern x
502 #endif
503
504 #endif /* !FT_BASE */
505
506
507 #ifndef FT_BASE_DEF
508
509 #ifdef __cplusplus
510 #define FT_BASE_DEF( x ) x
511 #else
512 #define FT_BASE_DEF( x ) x
513 #endif
514
515 #endif /* !FT_BASE_DEF */
516
517
518 #ifndef FT_EXPORT
519
520 #ifdef __cplusplus
521 #define FT_EXPORT( x ) extern "C" x
522 #else
523 #define FT_EXPORT( x ) extern x
524 #endif
525
526 #endif /* !FT_EXPORT */
527
528
529 #ifndef FT_EXPORT_DEF
530
531 #ifdef __cplusplus
532 #define FT_EXPORT_DEF( x ) extern "C" x
533 #else
534 #define FT_EXPORT_DEF( x ) extern x
535 #endif
536
537 #endif /* !FT_EXPORT_DEF */
538
539
540 #ifndef FT_EXPORT_VAR
541
542 #ifdef __cplusplus
543 #define FT_EXPORT_VAR( x ) extern "C" x
544 #else
545 #define FT_EXPORT_VAR( x ) extern x
546 #endif
547
548 #endif /* !FT_EXPORT_VAR */
549
550 /* The following macros are needed to compile the library with a */
551 /* C++ compiler and with 16bit compilers. */
552 /* */
553
554 /* This is special. Within C++, you must specify `extern "C"' for */
555 /* functions which are used via function pointers, and you also */
556 /* must do that for structures which contain function pointers to */
557 /* assure C linkage -- it's not possible to have (local) anonymous */
558 /* functions which are accessed by (global) function pointers. */
559 /* */
560 /* */
561 /* FT_CALLBACK_DEF is used to _define_ a callback function. */
562 /* */
563 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
564 /* contains pointers to callback functions. */
565 /* */
566 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */
567 /* that contains pointers to callback functions. */
568 /* */
569 /* */
570 /* Some 16bit compilers have to redefine these macros to insert */
571 /* the infamous `_cdecl' or `__fastcall' declarations. */
572 /* */
573 #ifndef FT_CALLBACK_DEF
574 #ifdef __cplusplus
575 #define FT_CALLBACK_DEF( x ) extern "C" x
576 #else
577 #define FT_CALLBACK_DEF( x ) static x
578 #endif
579 #endif /* FT_CALLBACK_DEF */
580
581 #ifndef FT_CALLBACK_TABLE
582 #ifdef __cplusplus
583 #define FT_CALLBACK_TABLE extern "C"
584 #define FT_CALLBACK_TABLE_DEF extern "C"
585 #else
586 #define FT_CALLBACK_TABLE extern
587 #define FT_CALLBACK_TABLE_DEF /* nothing */
588 #endif
589 #endif /* FT_CALLBACK_TABLE */
590
591
592 FT_END_HEADER
593
594
595 #endif /* __FTCONFIG_H__ */
596
597
598 /* END */
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