include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 24 Feb 2006 07:26:31 +0000
changeset 1422 d2ee8da60262
parent 1402 d910939febfa
child 1456 84de7511f79f
permissions -rw-r--r--
Added pre-configured versions of SDL_config.h for various platforms
     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 
    31 #if HAVE_SYS_TYPES_H
    32 #include <sys/types.h>
    33 #endif
    34 #if HAVE_STDIO_H
    35 #include <stdio.h>
    36 #endif
    37 #if STDC_HEADERS
    38 # include <stdlib.h>
    39 # include <stddef.h>
    40 # include <stdarg.h>
    41 #else
    42 # if HAVE_STDLIB_H
    43 # include <stdlib.h>
    44 # elif HAVE_MALLOC_H
    45 # include <malloc.h>
    46 # endif
    47 # if HAVE_STDDEF_H
    48 # include <stddef.h>
    49 # endif
    50 # if HAVE_STDARG_H
    51 # include <stdarg.h>
    52 # endif
    53 #endif
    54 #if HAVE_STRING_H
    55 # if !STDC_HEADERS && HAVE_MEMORY_H
    56 # include <memory.h>
    57 # endif
    58 # include <string.h>
    59 #endif
    60 #if HAVE_STRINGS_H
    61 # include <strings.h>
    62 #endif
    63 #if HAVE_INTTYPES_H
    64 # include <inttypes.h>
    65 #else
    66 # if HAVE_STDINT_H
    67 # include <stdint.h>
    68 # endif
    69 #endif
    70 #if HAVE_CTYPE_H
    71 # include <ctype.h>
    72 #endif
    73 
    74 /* The number of elements in an array */
    75 #define SDL_arraysize(array)	(sizeof(array)/sizeof(array[0]))
    76 #define SDL_TABLESIZE(table)	SDL_arraysize(table)
    77 
    78 /* Basic data types */
    79 typedef enum SDL_bool {
    80 	SDL_FALSE = 0,
    81 	SDL_TRUE  = 1
    82 } SDL_bool;
    83 
    84 typedef int8_t		Sint8;
    85 typedef uint8_t		Uint8;
    86 typedef int16_t		Sint16;
    87 typedef uint16_t	Uint16;
    88 typedef int32_t		Sint32;
    89 typedef uint32_t	Uint32;
    90 
    91 #ifdef SDL_HAS_64BIT_TYPE
    92 typedef int64_t		Sint64;
    93 typedef uint64_t	Uint64;
    94 #else
    95 /* This is really just a hack to prevent the compiler from complaining */
    96 typedef struct {
    97 	Uint32 hi;
    98 	Uint32 lo;
    99 } Uint64, Sint64;
   100 #endif
   101 
   102 /* Make sure the types really have the right sizes */
   103 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   104        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   105 
   106 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   107 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   108 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   109 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   110 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   111 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   112 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   113 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   114 
   115 /* Check to make sure enums are the size of ints, for structure packing.
   116    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   117    enums having the size of an int must be enabled.
   118    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   119 */
   120 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   121 #ifdef __MWERKS__
   122 #pragma enumsalwaysint on
   123 #endif
   124 
   125 typedef enum {
   126 	DUMMY_ENUM_VALUE
   127 } SDL_DUMMY_ENUM;
   128 
   129 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   130 
   131 
   132 #include "begin_code.h"
   133 /* Set up for C function definitions, even when using C++ */
   134 #ifdef __cplusplus
   135 extern "C" {
   136 #endif
   137 
   138 #if HAVE_MALLOC
   139 #define SDL_malloc	malloc
   140 #else
   141 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
   142 #endif
   143 
   144 #if HAVE_CALLOC
   145 #define SDL_calloc	calloc
   146 #else
   147 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
   148 #endif
   149 
   150 #if HAVE_REALLOC
   151 #define SDL_realloc	realloc
   152 #else
   153 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
   154 #endif
   155 
   156 #if HAVE_FREE
   157 #define SDL_free	free
   158 #else
   159 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   160 #endif
   161 
   162 #if HAVE_ALLOCA && !defined(alloca)
   163 # if HAVE_ALLOCA_H
   164 #  include <alloca.h>
   165 # elif defined(__GNUC__)
   166 #  define alloca __builtin_alloca
   167 # elif defined(_MSC_VER)
   168 #  include <malloc.h>
   169 #  define alloca _alloca
   170 # elif defined(__AIX__)
   171   #pragma alloca
   172 # else
   173    char *alloca ();
   174 # endif
   175 #endif
   176 #if HAVE_ALLOCA
   177 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*count)
   178 #define SDL_stack_free(data)
   179 #else
   180 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*count)
   181 #define SDL_stack_free(data)            SDL_free(data)
   182 #endif
   183 
   184 #if HAVE_GETENV
   185 #define SDL_getenv	getenv
   186 #else
   187 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
   188 #endif
   189 
   190 #if HAVE_PUTENV
   191 #define SDL_putenv	putenv
   192 #else
   193 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
   194 #endif
   195 
   196 #if HAVE_QSORT
   197 #define SDL_qsort	qsort
   198 #else
   199 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   200            int (*compare)(const void *, const void *));
   201 #endif
   202 
   203 #if HAVE_ABS
   204 #define SDL_abs		abs
   205 #else
   206 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   207 #endif
   208 
   209 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   210 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   211 
   212 #if HAVE_CTYPE_H
   213 #define SDL_isdigit(X)  isdigit(X)
   214 #define SDL_isspace(X)  isspace(X)
   215 #define SDL_toupper(X)  toupper(X)
   216 #define SDL_tolower(X)  tolower(X)
   217 #else
   218 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   219 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   220 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   221 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   222 #endif
   223 
   224 #if HAVE_MEMSET
   225 #define SDL_memset      memset
   226 #else
   227 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
   228 #endif
   229 
   230 #if defined(__GNUC__) && defined(i386)
   231 #define SDL_memset4(dst, val, len)				\
   232 do {								\
   233 	int u0, u1, u2;						\
   234 	__asm__ __volatile__ (					\
   235 		"cld\n\t"					\
   236 		"rep ; stosl\n\t"				\
   237 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   238 		: "0" (dst), "1" (val), "2" ((Uint32)(len))	\
   239 		: "memory" );					\
   240 } while(0)
   241 #endif
   242 #ifndef SDL_memset4
   243 #define SDL_memset4(dst, val, len)		\
   244 do {						\
   245 	unsigned _count = (len);		\
   246 	unsigned _n = (_count + 3) / 4;		\
   247 	Uint32 *_p = (Uint32 *)(dst);		\
   248 	Uint32 _val = (val);			\
   249         switch (_count % 4) {			\
   250         case 0: do {    *_p++ = _val;		\
   251         case 3:         *_p++ = _val;		\
   252         case 2:         *_p++ = _val;		\
   253         case 1:         *_p++ = _val;		\
   254 		} while ( --_n );		\
   255 	}					\
   256 } while(0)
   257 #endif
   258 
   259 #if defined(__GNUC__) && defined(i386)
   260 #define SDL_memcpy(dst, src, len)					  \
   261 do {									  \
   262 	int u0, u1, u2;						  	  \
   263 	__asm__ __volatile__ (						  \
   264 		"cld\n\t"						  \
   265 		"rep ; movsl\n\t"					  \
   266 		"testb $2,%b4\n\t"					  \
   267 		"je 1f\n\t"						  \
   268 		"movsw\n"						  \
   269 		"1:\ttestb $1,%b4\n\t"					  \
   270 		"je 2f\n\t"						  \
   271 		"movsb\n"						  \
   272 		"2:"							  \
   273 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   274 		: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
   275 		: "memory" );						  \
   276 } while(0)
   277 #endif
   278 #ifndef SDL_memcpy
   279 #if HAVE_MEMCPY
   280 #define SDL_memcpy      memcpy
   281 #elif HAVE_BCOPY
   282 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   283 #else
   284 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
   285 #endif
   286 #endif
   287 
   288 #if defined(__GNUC__) && defined(i386)
   289 #define SDL_memcpy4(dst, src, len)				\
   290 do {								\
   291 	int ecx, edi, esi;					\
   292 	__asm__ __volatile__ (					\
   293 		"cld\n\t"					\
   294 		"rep ; movsl"					\
   295 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   296 		: "0" ((unsigned)(len)), "1" (dst), "2" (src)	\
   297 		: "memory" );					\
   298 } while(0)
   299 #endif
   300 #ifndef SDL_memcpy4
   301 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   302 #endif
   303 
   304 #if defined(__GNUC__) && defined(i386)
   305 #define SDL_revcpy(dst, src, len)			\
   306 do {							\
   307 	int u0, u1, u2;					\
   308 	char *dstp = (char *)(dst);			\
   309 	char *srcp = (char *)(src);			\
   310 	int n = (len);					\
   311 	if ( n >= 4 ) {					\
   312 	__asm__ __volatile__ (				\
   313 		"std\n\t"				\
   314 		"rep ; movsl\n\t"			\
   315 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   316 		: "0" (n >> 2),				\
   317 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   318 		: "memory" );				\
   319 	}						\
   320 	switch (n & 3) {				\
   321 		case 3: dstp[2] = srcp[2];		\
   322 		case 2: dstp[1] = srcp[1];		\
   323 		case 1: dstp[0] = srcp[0];		\
   324 			break;				\
   325 		default:				\
   326 			break;				\
   327 	}						\
   328 } while(0)
   329 #endif
   330 #ifndef SDL_revcpy
   331 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
   332 #endif
   333 
   334 #if HAVE_MEMMOVE
   335 #define SDL_memmove     memmove
   336 #elif HAVE_BCOPY
   337 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   338 #else
   339 #define SDL_memmove(dst, src, len)			\
   340 do {							\
   341 	if ( dst < src ) {				\
   342 		SDL_memcpy(dst, src, len);		\
   343 	} else {					\
   344 		SDL_revcpy(dst, src, len);		\
   345 	}						\
   346 } while(0)
   347 #endif
   348 
   349 #if HAVE_MEMCMP
   350 #define SDL_memcmp      memcmp
   351 #else
   352 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   353 #endif
   354 
   355 #if HAVE_STRLEN
   356 #define SDL_strlen      strlen
   357 #else
   358 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   359 #endif
   360 
   361 #if HAVE_STRLCPY
   362 #define SDL_strlcpy     strlcpy
   363 #else
   364 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
   365 #endif
   366 
   367 #if HAVE_STRLCAT
   368 #define SDL_strlcat    strlcat
   369 #else
   370 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
   371 #endif
   372 
   373 #if HAVE_STRDUP
   374 #define SDL_strdup     strdup
   375 #else
   376 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
   377 #endif
   378 
   379 #if HAVE__STRREV
   380 #define SDL_strrev      _strrev
   381 #else
   382 extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
   383 #endif
   384 
   385 #if HAVE__STRUPR
   386 #define SDL_strupr      _strupr
   387 #else
   388 extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
   389 #endif
   390 
   391 #if HAVE__STRLWR
   392 #define SDL_strlwr      _strlwr
   393 #else
   394 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
   395 #endif
   396 
   397 #if HAVE_STRCHR
   398 #define SDL_strchr      strchr
   399 #elif HAVE_INDEX
   400 #define SDL_strchr      index
   401 #else
   402 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
   403 #endif
   404 
   405 #if HAVE_STRRCHR
   406 #define SDL_strrchr     strrchr
   407 #elif HAVE_RINDEX
   408 #define SDL_strrchr     rindex
   409 #else
   410 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
   411 #endif
   412 
   413 #if HAVE_STRSTR
   414 #define SDL_strstr      strstr
   415 #else
   416 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
   417 #endif
   418 
   419 #if HAVE_ITOA
   420 #define SDL_itoa        itoa
   421 #else
   422 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   423 #endif
   424 
   425 #if HAVE__LTOA
   426 #define SDL_ltoa        _ltoa
   427 #else
   428 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
   429 #endif
   430 
   431 #if HAVE__UITOA
   432 #define SDL_uitoa       _uitoa
   433 #else
   434 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   435 #endif
   436 
   437 #if HAVE__ULTOA
   438 #define SDL_ultoa       _ultoa
   439 #else
   440 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
   441 #endif
   442 
   443 #if HAVE_STRTOL
   444 #define SDL_strtol      strtol
   445 #else
   446 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
   447 #endif
   448 
   449 #if SDL_HAS_64BIT_TYPE
   450 
   451 #if HAVE__I64TOA
   452 #define SDL_lltoa       _i64toa
   453 #else
   454 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
   455 #endif
   456 
   457 #if HAVE__UI64TOA
   458 #define SDL_ulltoa      _ui64toa
   459 #else
   460 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
   461 #endif
   462 
   463 #if HAVE_STRTOLL
   464 #define SDL_strtoll     strtoll
   465 #else
   466 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
   467 #endif
   468 
   469 #endif /* SDL_HAS_64BIT_TYPE */
   470 
   471 #if HAVE_STRTOD
   472 #define SDL_strtod      strtod
   473 #else
   474 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   475 #endif
   476 
   477 #if HAVE_ATOI
   478 #define SDL_atoi        atoi
   479 #else
   480 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   481 #endif
   482 
   483 #if HAVE_ATOF
   484 #define SDL_atof        atof
   485 #else
   486 #define SDL_atof(X)     SDL_strtod(X, NULL)
   487 #endif
   488 
   489 #if HAVE_STRCMP
   490 #define SDL_strcmp      strcmp
   491 #else
   492 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   493 #endif
   494 
   495 #if HAVE_STRNCMP
   496 #define SDL_strncmp     strncmp
   497 #else
   498 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   499 #endif
   500 
   501 #if HAVE_STRCASECMP
   502 #define SDL_strcasecmp  strcasecmp
   503 #elif HAVE_STRICMP
   504 #define SDL_strcasecmp  stricmp
   505 #else
   506 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   507 #endif
   508 
   509 #if HAVE_SSCANF
   510 #define SDL_sscanf      sscanf
   511 #else
   512 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
   513 #endif
   514 
   515 #if HAVE_SNPRINTF
   516 #define SDL_snprintf    snprintf
   517 #else
   518 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
   519 #endif
   520 
   521 #if HAVE_VSNPRINTF
   522 #define SDL_vsnprintf   vsnprintf
   523 #else
   524 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
   525 #endif
   526 
   527 /* Ends C function definitions when using C++ */
   528 #ifdef __cplusplus
   529 }
   530 #endif
   531 #include "close_code.h"
   532 
   533 #endif /* _SDL_stdinc_h */