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Whoops, need this. :)
author Sam Lantinga <slouken@libsdl.org>
date Fri, 10 Feb 2006 03:21:39 +0000
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children 19418e4422cb
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1356:67114343400d 1357:e18467d67cfd
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22
23 /* This is a general header that includes C language support */
24
25 #ifndef _SDL_stdinc_h
26 #define _SDL_stdinc_h
27
28 #include "SDL_config.h"
29
30 /* AIX requires this to be the first thing in the file. */
31 #ifndef __GNUC__
32 # if HAVE_ALLOCA_H
33 # include <alloca.h>
34 # else
35 # ifdef _AIX
36 #pragma alloca
37 # else
38 # ifndef alloca /* predefined by HP cc +Olibcalls */
39 char *alloca ();
40 # endif
41 # endif
42 # endif
43 #endif
44
45 #if HAVE_SYS_TYPES_H
46 #include <sys/types.h>
47 #endif
48 #if HAVE_STDIO_H
49 #include <stdio.h>
50 #endif
51 #if STDC_HEADERS
52 # include <stdlib.h>
53 # include <stddef.h>
54 # include <stdarg.h>
55 #else
56 # if HAVE_STDLIB_H
57 # include <stdlib.h>
58 # endif
59 # if HAVE_STDARG_H
60 # include <stdarg.h>
61 # endif
62 #endif
63 #if HAVE_MALLOC_H
64 # include <malloc.h>
65 #endif
66 #if HAVE_STRING_H
67 # if !STDC_HEADERS && HAVE_MEMORY_H
68 # include <memory.h>
69 # endif
70 # include <string.h>
71 #endif
72 #if HAVE_STRINGS_H
73 # include <strings.h>
74 #endif
75 #if HAVE_INTTYPES_H
76 # include <inttypes.h>
77 #else
78 # if HAVE_STDINT_H
79 # include <stdint.h>
80 # endif
81 #endif
82 #if HAVE_CTYPE_H
83 # include <ctype.h>
84 #endif
85
86 /* The number of elements in an array */
87 #define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
88 #define SDL_TABLESIZE(table) SDL_arraysize(table)
89
90 /* Basic data types */
91 typedef enum SDL_bool {
92 SDL_FALSE = 0,
93 SDL_TRUE = 1
94 } SDL_bool;
95
96 typedef int8_t Sint8;
97 typedef uint8_t Uint8;
98 typedef int16_t Sint16;
99 typedef uint16_t Uint16;
100 typedef int32_t Sint32;
101 typedef uint32_t Uint32;
102
103 #ifdef SDL_HAS_64BIT_TYPE
104 typedef int64_t Sint64;
105 typedef uint64_t Uint64;
106 #else
107 /* This is really just a hack to prevent the compiler from complaining */
108 typedef struct {
109 Uint32 hi;
110 Uint32 lo;
111 } Uint64, Sint64;
112 #endif
113
114 /* Make sure the types really have the right sizes */
115 #define SDL_COMPILE_TIME_ASSERT(name, x) \
116 typedef int SDL_dummy_ ## name[(x) * 2 - 1]
117
118 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
119 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
120 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
121 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
122 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
123 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
124 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
125 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
126
127 /* Check to make sure enums are the size of ints, for structure packing.
128 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
129 enums having the size of an int must be enabled.
130 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
131 */
132 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
133 #ifdef __MWERKS__
134 #pragma enumsalwaysint on
135 #endif
136
137 typedef enum {
138 DUMMY_ENUM_VALUE
139 } SDL_DUMMY_ENUM;
140
141 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
142
143
144 #include "begin_code.h"
145 /* Set up for C function definitions, even when using C++ */
146 #ifdef __cplusplus
147 extern "C" {
148 #endif
149
150 #if HAVE_MALLOC
151 #define SDL_malloc malloc
152 #else
153 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
154 #endif
155
156 #if HAVE_CALLOC
157 #define SDL_calloc calloc
158 #else
159 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
160 #endif
161
162 #if HAVE_REALLOC
163 #define SDL_realloc realloc
164 #else
165 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
166 #endif
167
168 #if HAVE_FREE
169 #define SDL_free free
170 #else
171 extern DECLSPEC void SDLCALL SDL_free(void *mem);
172 #endif
173
174 #if HAVE_ALLOCA
175 #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*count)
176 #define SDL_stack_free(data)
177 #else
178 #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*count)
179 #define SDL_stack_free(data) SDL_free(data)
180 #endif
181
182 #if HAVE_GETENV
183 #define SDL_getenv getenv
184 #else
185 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
186 #endif
187
188 #if HAVE_PUTENV
189 #define SDL_putenv putenv
190 #else
191 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
192 #endif
193
194 #if HAVE_QSORT
195 #define SDL_qsort qsort
196 #else
197 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
198 int (*compare)(const void *, const void *));
199 #endif
200
201 #if HAVE_ABS
202 #define SDL_abs abs
203 #else
204 #define SDL_abs(X) ((X) < 0 ? -(X) : (X))
205 #endif
206
207 #if HAVE_CTYPE_H
208 #define SDL_isdigit(X) isdigit(X)
209 #define SDL_isspace(X) isspace(X)
210 #define SDL_toupper(X) toupper(X)
211 #define SDL_tolower(X) tolower(X)
212 #else
213 #define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9'))
214 #define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
215 #define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
216 #define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
217 #endif
218
219 #if HAVE_MEMSET
220 #define SDL_memset memset
221 #else
222 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
223 #endif
224
225 #if defined(__GNUC__) && defined(i386)
226 #define SDL_memset4(dst, val, len) \
227 do { \
228 int u0, u1, u2; \
229 __asm__ __volatile__ ( \
230 "cld\n\t" \
231 "rep ; stosl\n\t" \
232 : "=&D" (u0), "=&a" (u1), "=&c" (u2) \
233 : "0" (dst), "1" (val), "2" ((Uint32)(len)) \
234 : "memory" ); \
235 } while(0)
236 #endif
237 #ifndef SDL_memset4
238 #define SDL_memset4(dst, val, len) \
239 do { \
240 unsigned _count = (len); \
241 unsigned _n = (_count + 3) / 4; \
242 Uint32 *_p = (Uint32 *)(dst); \
243 Uint32 _val = (val); \
244 switch (_count % 4) { \
245 case 0: do { *_p++ = _val; \
246 case 3: *_p++ = _val; \
247 case 2: *_p++ = _val; \
248 case 1: *_p++ = _val; \
249 } while ( --_n ); \
250 } \
251 } while(0)
252 #endif
253
254 #if defined(__GNUC__) && defined(i386)
255 #define SDL_memcpy(dst, src, len) \
256 do { \
257 int u0, u1, u2; \
258 __asm__ __volatile__ ( \
259 "cld\n\t" \
260 "rep ; movsl\n\t" \
261 "testb $2,%b4\n\t" \
262 "je 1f\n\t" \
263 "movsw\n" \
264 "1:\ttestb $1,%b4\n\t" \
265 "je 2f\n\t" \
266 "movsb\n" \
267 "2:" \
268 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \
269 : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
270 : "memory" ); \
271 } while(0)
272 #endif
273 #ifndef SDL_memcpy
274 #if HAVE_MEMCPY
275 #define SDL_memcpy memcpy
276 #elif HAVE_BCOPY
277 #define SDL_memcpy(d, s, n) bcopy((s), (d), (n))
278 #else
279 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
280 #endif
281 #endif
282
283 #if defined(__GNUC__) && defined(i386)
284 #define SDL_memcpy4(dst, src, len) \
285 do { \
286 int ecx, edi, esi; \
287 __asm__ __volatile__ ( \
288 "cld\n\t" \
289 "rep ; movsl" \
290 : "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
291 : "0" ((unsigned)(len)), "1" (dst), "2" (src) \
292 : "memory" ); \
293 } while(0)
294 #endif
295 #ifndef SDL_memcpy4
296 #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
297 #endif
298
299 #if defined(__GNUC__) && defined(i386)
300 #define SDL_revcpy(dst, src, len) \
301 do { \
302 int u0, u1, u2; \
303 char *dstp = (char *)(dst); \
304 char *srcp = (char *)(src); \
305 int n = (len); \
306 if ( n >= 4 ) { \
307 __asm__ __volatile__ ( \
308 "std\n\t" \
309 "rep ; movsl\n\t" \
310 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \
311 : "0" (n >> 2), \
312 "1" (dstp+(n-4)), "2" (srcp+(n-4)) \
313 : "memory" ); \
314 } \
315 switch (n & 3) { \
316 case 3: dstp[2] = srcp[2]; \
317 case 2: dstp[1] = srcp[1]; \
318 case 1: dstp[0] = srcp[0]; \
319 break; \
320 default: \
321 break; \
322 } \
323 } while(0)
324 #endif
325 #ifndef SDL_revcpy
326 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
327 #endif
328
329 #if HAVE_MEMMOVE
330 #define SDL_memmove memmove
331 #elif HAVE_BCOPY
332 #define SDL_memmove(d, s, n) bcopy((s), (d), (n))
333 #else
334 #define SDL_memmove(dst, src, len) \
335 do { \
336 if ( dst < src ) { \
337 SDL_memcpy(dst, src, len); \
338 } else { \
339 SDL_revcpy(dst, src, len); \
340 } \
341 } while(0)
342 #endif
343
344 #if HAVE_MEMCMP
345 #define SDL_memcmp memcmp
346 #else
347 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
348 #endif
349
350 #if HAVE_STRLEN
351 #define SDL_strlen strlen
352 #else
353 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
354 #endif
355
356 #if HAVE_STRCPY
357 #define SDL_strcpy strcpy
358 #else
359 extern DECLSPEC char * SDLCALL SDL_strcpy(char *dst, const char *src);
360 #endif
361
362 #if HAVE_STRNCPY
363 #define SDL_strncpy strncpy
364 #else
365 extern DECLSPEC char * SDLCALL SDL_strncpy(char *dst, const char *src, size_t maxlen);
366 #endif
367
368 #if HAVE_STRCAT
369 #define SDL_strcat strcat
370 #else
371 #define SDL_strcat(dst, src) (SDL_strcpy(dst+SDL_strlen(dst), src), dst)
372 #endif
373
374 #if HAVE_STRNCAT
375 #define SDL_strncat strncat
376 #else
377 #define SDL_strncat(dst, src, n) (SDL_strncpy(dst+SDL_strlen(dst), src, n), dst)
378 #endif
379
380 #if HAVE_STRDUP
381 #define SDL_strdup strdup
382 #else
383 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
384 #endif
385
386 #if HAVE__STRREV
387 #define SDL_strrev _strrev
388 #else
389 extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
390 #endif
391
392 #if HAVE__STRUPR
393 #define SDL_strupr _strupr
394 #else
395 extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
396 #endif
397
398 #if HAVE__STRLWR
399 #define SDL_strlwr _strlwr
400 #else
401 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
402 #endif
403
404 #if HAVE_STRCHR
405 #define SDL_strchr strchr
406 #elif HAVE_INDEX
407 #define SDL_strchr index
408 #else
409 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
410 #endif
411
412 #if HAVE_STRRCHR
413 #define SDL_strrchr strrchr
414 #elif HAVE_RINDEX
415 #define SDL_strrchr rindex
416 #else
417 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
418 #endif
419
420 #if HAVE_STRSTR
421 #define SDL_strstr strstr
422 #else
423 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
424 #endif
425
426 #if HAVE_ITOA
427 #define SDL_itoa itoa
428 #else
429 #define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
430 #endif
431
432 #if HAVE__LTOA
433 #define SDL_ltoa _ltoa
434 #else
435 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
436 #endif
437
438 #if HAVE__UITOA
439 #define SDL_uitoa _uitoa
440 #else
441 #define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
442 #endif
443
444 #if HAVE__ULTOA
445 #define SDL_ultoa _ultoa
446 #else
447 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
448 #endif
449
450 #if HAVE_STRTOL
451 #define SDL_strtol strtol
452 #else
453 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
454 #endif
455
456 #if SDL_HAS_64BIT_TYPE
457
458 #if HAVE__I64TOA
459 #define SDL_lltoa _i64toa
460 #else
461 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
462 #endif
463
464 #if HAVE__UI64TOA
465 #define SDL_ulltoa _ui64toa
466 #else
467 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
468 #endif
469
470 #if HAVE_STRTOLL
471 #define SDL_strtoll strtoll
472 #else
473 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
474 #endif
475
476 #endif /* SDL_HAS_64BIT_TYPE */
477
478 #if HAVE_STRTOD
479 #define SDL_strtod strtod
480 #else
481 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
482 #endif
483
484 #if HAVE_ATOI
485 #define SDL_atoi atoi
486 #else
487 #define SDL_atoi(X) SDL_strtol(X, NULL, 0)
488 #endif
489
490 #if HAVE_ATOF
491 #define SDL_atof atof
492 #else
493 #define SDL_atof(X) SDL_strtod(X, NULL)
494 #endif
495
496 #if HAVE_STRCMP
497 #define SDL_strcmp strcmp
498 #else
499 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
500 #endif
501
502 #if HAVE_STRNCMP
503 #define SDL_strncmp strncmp
504 #else
505 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
506 #endif
507
508 #if HAVE_STRCASECMP
509 #define SDL_strcasecmp strcasecmp
510 #elif HAVE_STRICMP
511 #define SDL_strcasecmp stricmp
512 #else
513 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
514 #endif
515
516 #if HAVE_SSCANF
517 #define SDL_sscanf sscanf
518 #else
519 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
520 #endif
521
522 #if HAVE_SNPRINTF
523 #define SDL_snprintf snprintf
524 #else
525 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
526 #endif
527
528 #if HAVE_VSNPRINTF
529 #define SDL_vsnprintf vsnprintf
530 #else
531 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
532 #endif
533
534 /* Ends C function definitions when using C++ */
535 #ifdef __cplusplus
536 }
537 #endif
538 #include "close_code.h"
539
540 #endif /* _SDL_stdinc_h */