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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 */
SDL