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include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Tue, 21 Feb 2006 08:46:50 +0000
changeset 1402 d910939febfa
parent 1381 8570e1f4b1f1
child 1422 d2ee8da60262
permissions -rw-r--r--
Use consistent identifiers for the various platforms we support.
Make sure every source file includes SDL_config.h, so the proper system
headers are chosen. 
     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_STDARG_H

    48 # include <stdarg.h>

    49 # endif

    50 #endif

    51 #if HAVE_STRING_H

    52 # if !STDC_HEADERS && HAVE_MEMORY_H

    53 # include <memory.h>

    54 # endif

    55 # include <string.h>

    56 #endif

    57 #if HAVE_STRINGS_H

    58 # include <strings.h>

    59 #endif

    60 #if HAVE_INTTYPES_H

    61 # include <inttypes.h>

    62 #else

    63 # if HAVE_STDINT_H

    64 # include <stdint.h>

    65 # endif

    66 #endif

    67 #if HAVE_CTYPE_H

    68 # include <ctype.h>

    69 #endif

    70 

    71 /* The number of elements in an array */

    72 #define SDL_arraysize(array)	(sizeof(array)/sizeof(array[0]))

    73 #define SDL_TABLESIZE(table)	SDL_arraysize(table)

    74 

    75 /* Basic data types */

    76 typedef enum SDL_bool {

    77 	SDL_FALSE = 0,

    78 	SDL_TRUE  = 1

    79 } SDL_bool;

    80 

    81 typedef int8_t		Sint8;

    82 typedef uint8_t		Uint8;

    83 typedef int16_t		Sint16;

    84 typedef uint16_t	Uint16;

    85 typedef int32_t		Sint32;

    86 typedef uint32_t	Uint32;

    87 

    88 #ifdef SDL_HAS_64BIT_TYPE

    89 typedef int64_t		Sint64;

    90 typedef uint64_t	Uint64;

    91 #else

    92 /* This is really just a hack to prevent the compiler from complaining */

    93 typedef struct {

    94 	Uint32 hi;

    95 	Uint32 lo;

    96 } Uint64, Sint64;

    97 #endif

    98 

    99 /* Make sure the types really have the right sizes */

   100 #define SDL_COMPILE_TIME_ASSERT(name, x)               \

   101        typedef int SDL_dummy_ ## name[(x) * 2 - 1]

   102 

   103 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);

   104 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);

   105 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);

   106 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);

   107 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);

   108 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);

   109 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);

   110 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);

   111 

   112 /* Check to make sure enums are the size of ints, for structure packing.

   113    For both Watcom C/C++ and Borland C/C++ the compiler option that makes

   114    enums having the size of an int must be enabled.

   115    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).

   116 */

   117 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */

   118 #ifdef __MWERKS__

   119 #pragma enumsalwaysint on

   120 #endif

   121 

   122 typedef enum {

   123 	DUMMY_ENUM_VALUE

   124 } SDL_DUMMY_ENUM;

   125 

   126 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));

   127 

   128 

   129 #include "begin_code.h"

   130 /* Set up for C function definitions, even when using C++ */

   131 #ifdef __cplusplus

   132 extern "C" {

   133 #endif

   134 

   135 #if HAVE_MALLOC

   136 #define SDL_malloc	malloc

   137 #else

   138 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);

   139 #endif

   140 

   141 #if HAVE_CALLOC

   142 #define SDL_calloc	calloc

   143 #else

   144 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);

   145 #endif

   146 

   147 #if HAVE_REALLOC

   148 #define SDL_realloc	realloc

   149 #else

   150 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);

   151 #endif

   152 

   153 #if HAVE_FREE

   154 #define SDL_free	free

   155 #else

   156 extern DECLSPEC void SDLCALL SDL_free(void *mem);

   157 #endif

   158 

   159 #if HAVE_ALLOCA && !defined(alloca)

   160 # if HAVE_ALLOCA_H

   161 #  include <alloca.h>

   162 # elif defined(__GNUC__)

   163 #  define alloca __builtin_alloca

   164 # elif defined(_MSC_VER)

   165 #  include <malloc.h>

   166 #  define alloca _alloca

   167 # elif defined(__AIX__)

   168   #pragma alloca

   169 # else

   170    char *alloca ();

   171 # endif

   172 #endif

   173 #if HAVE_ALLOCA

   174 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*count)

   175 #define SDL_stack_free(data)

   176 #else

   177 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*count)

   178 #define SDL_stack_free(data)            SDL_free(data)

   179 #endif

   180 

   181 #if HAVE_GETENV

   182 #define SDL_getenv	getenv

   183 #else

   184 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);

   185 #endif

   186 

   187 #if HAVE_PUTENV

   188 #define SDL_putenv	putenv

   189 #else

   190 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);

   191 #endif

   192 

   193 #if HAVE_QSORT

   194 #define SDL_qsort	qsort

   195 #else

   196 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,

   197            int (*compare)(const void *, const void *));

   198 #endif

   199 

   200 #if HAVE_ABS

   201 #define SDL_abs		abs

   202 #else

   203 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))

   204 #endif

   205 

   206 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))

   207 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))

   208 

   209 #if HAVE_CTYPE_H

   210 #define SDL_isdigit(X)  isdigit(X)

   211 #define SDL_isspace(X)  isspace(X)

   212 #define SDL_toupper(X)  toupper(X)

   213 #define SDL_tolower(X)  tolower(X)

   214 #else

   215 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))

   216 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))

   217 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))

   218 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))

   219 #endif

   220 

   221 #if HAVE_MEMSET

   222 #define SDL_memset      memset

   223 #else

   224 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);

   225 #endif

   226 

   227 #if defined(__GNUC__) && defined(i386)

   228 #define SDL_memset4(dst, val, len)				\

   229 do {								\

   230 	int u0, u1, u2;						\

   231 	__asm__ __volatile__ (					\

   232 		"cld\n\t"					\

   233 		"rep ; stosl\n\t"				\

   234 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\

   235 		: "0" (dst), "1" (val), "2" ((Uint32)(len))	\

   236 		: "memory" );					\

   237 } while(0)

   238 #endif

   239 #ifndef SDL_memset4

   240 #define SDL_memset4(dst, val, len)		\

   241 do {						\

   242 	unsigned _count = (len);		\

   243 	unsigned _n = (_count + 3) / 4;		\

   244 	Uint32 *_p = (Uint32 *)(dst);		\

   245 	Uint32 _val = (val);			\

   246         switch (_count % 4) {			\

   247         case 0: do {    *_p++ = _val;		\

   248         case 3:         *_p++ = _val;		\

   249         case 2:         *_p++ = _val;		\

   250         case 1:         *_p++ = _val;		\

   251 		} while ( --_n );		\

   252 	}					\

   253 } while(0)

   254 #endif

   255 

   256 #if defined(__GNUC__) && defined(i386)

   257 #define SDL_memcpy(dst, src, len)					  \

   258 do {									  \

   259 	int u0, u1, u2;						  	  \

   260 	__asm__ __volatile__ (						  \

   261 		"cld\n\t"						  \

   262 		"rep ; movsl\n\t"					  \

   263 		"testb $2,%b4\n\t"					  \

   264 		"je 1f\n\t"						  \

   265 		"movsw\n"						  \

   266 		"1:\ttestb $1,%b4\n\t"					  \

   267 		"je 2f\n\t"						  \

   268 		"movsb\n"						  \

   269 		"2:"							  \

   270 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \

   271 		: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \

   272 		: "memory" );						  \

   273 } while(0)

   274 #endif

   275 #ifndef SDL_memcpy

   276 #if HAVE_MEMCPY

   277 #define SDL_memcpy      memcpy

   278 #elif HAVE_BCOPY

   279 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))

   280 #else

   281 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);

   282 #endif

   283 #endif

   284 

   285 #if defined(__GNUC__) && defined(i386)

   286 #define SDL_memcpy4(dst, src, len)				\

   287 do {								\

   288 	int ecx, edi, esi;					\

   289 	__asm__ __volatile__ (					\

   290 		"cld\n\t"					\

   291 		"rep ; movsl"					\

   292 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\

   293 		: "0" ((unsigned)(len)), "1" (dst), "2" (src)	\

   294 		: "memory" );					\

   295 } while(0)

   296 #endif

   297 #ifndef SDL_memcpy4

   298 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)

   299 #endif

   300 

   301 #if defined(__GNUC__) && defined(i386)

   302 #define SDL_revcpy(dst, src, len)			\

   303 do {							\

   304 	int u0, u1, u2;					\

   305 	char *dstp = (char *)(dst);			\

   306 	char *srcp = (char *)(src);			\

   307 	int n = (len);					\

   308 	if ( n >= 4 ) {					\

   309 	__asm__ __volatile__ (				\

   310 		"std\n\t"				\

   311 		"rep ; movsl\n\t"			\

   312 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\

   313 		: "0" (n >> 2),				\

   314 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\

   315 		: "memory" );				\

   316 	}						\

   317 	switch (n & 3) {				\

   318 		case 3: dstp[2] = srcp[2];		\

   319 		case 2: dstp[1] = srcp[1];		\

   320 		case 1: dstp[0] = srcp[0];		\

   321 			break;				\

   322 		default:				\

   323 			break;				\

   324 	}						\

   325 } while(0)

   326 #endif

   327 #ifndef SDL_revcpy

   328 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);

   329 #endif

   330 

   331 #if HAVE_MEMMOVE

   332 #define SDL_memmove     memmove

   333 #elif HAVE_BCOPY

   334 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))

   335 #else

   336 #define SDL_memmove(dst, src, len)			\

   337 do {							\

   338 	if ( dst < src ) {				\

   339 		SDL_memcpy(dst, src, len);		\

   340 	} else {					\

   341 		SDL_revcpy(dst, src, len);		\

   342 	}						\

   343 } while(0)

   344 #endif

   345 

   346 #if HAVE_MEMCMP

   347 #define SDL_memcmp      memcmp

   348 #else

   349 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);

   350 #endif

   351 

   352 #if HAVE_STRLEN

   353 #define SDL_strlen      strlen

   354 #else

   355 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);

   356 #endif

   357 

   358 #if HAVE_STRLCPY

   359 #define SDL_strlcpy     strlcpy

   360 #else

   361 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);

   362 #endif

   363 

   364 #if HAVE_STRLCAT

   365 #define SDL_strlcat    strlcat

   366 #else

   367 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);

   368 #endif

   369 

   370 #if HAVE_STRDUP

   371 #define SDL_strdup     strdup

   372 #else

   373 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);

   374 #endif

   375 

   376 #if HAVE__STRREV

   377 #define SDL_strrev      _strrev

   378 #else

   379 extern DECLSPEC char * SDLCALL SDL_strrev(char *string);

   380 #endif

   381 

   382 #if HAVE__STRUPR

   383 #define SDL_strupr      _strupr

   384 #else

   385 extern DECLSPEC char * SDLCALL SDL_strupr(char *string);

   386 #endif

   387 

   388 #if HAVE__STRLWR

   389 #define SDL_strlwr      _strlwr

   390 #else

   391 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);

   392 #endif

   393 

   394 #if HAVE_STRCHR

   395 #define SDL_strchr      strchr

   396 #elif HAVE_INDEX

   397 #define SDL_strchr      index

   398 #else

   399 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);

   400 #endif

   401 

   402 #if HAVE_STRRCHR

   403 #define SDL_strrchr     strrchr

   404 #elif HAVE_RINDEX

   405 #define SDL_strrchr     rindex

   406 #else

   407 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);

   408 #endif

   409 

   410 #if HAVE_STRSTR

   411 #define SDL_strstr      strstr

   412 #else

   413 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);

   414 #endif

   415 

   416 #if HAVE_ITOA

   417 #define SDL_itoa        itoa

   418 #else

   419 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)

   420 #endif

   421 

   422 #if HAVE__LTOA

   423 #define SDL_ltoa        _ltoa

   424 #else

   425 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);

   426 #endif

   427 

   428 #if HAVE__UITOA

   429 #define SDL_uitoa       _uitoa

   430 #else

   431 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)

   432 #endif

   433 

   434 #if HAVE__ULTOA

   435 #define SDL_ultoa       _ultoa

   436 #else

   437 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);

   438 #endif

   439 

   440 #if HAVE_STRTOL

   441 #define SDL_strtol      strtol

   442 #else

   443 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);

   444 #endif

   445 

   446 #if SDL_HAS_64BIT_TYPE

   447 

   448 #if HAVE__I64TOA

   449 #define SDL_lltoa       _i64toa

   450 #else

   451 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);

   452 #endif

   453 

   454 #if HAVE__UI64TOA

   455 #define SDL_ulltoa      _ui64toa

   456 #else

   457 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);

   458 #endif

   459 

   460 #if HAVE_STRTOLL

   461 #define SDL_strtoll     strtoll

   462 #else

   463 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);

   464 #endif

   465 

   466 #endif /* SDL_HAS_64BIT_TYPE */

   467 

   468 #if HAVE_STRTOD

   469 #define SDL_strtod      strtod

   470 #else

   471 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);

   472 #endif

   473 

   474 #if HAVE_ATOI

   475 #define SDL_atoi        atoi

   476 #else

   477 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)

   478 #endif

   479 

   480 #if HAVE_ATOF

   481 #define SDL_atof        atof

   482 #else

   483 #define SDL_atof(X)     SDL_strtod(X, NULL)

   484 #endif

   485 

   486 #if HAVE_STRCMP

   487 #define SDL_strcmp      strcmp

   488 #else

   489 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);

   490 #endif

   491 

   492 #if HAVE_STRNCMP

   493 #define SDL_strncmp     strncmp

   494 #else

   495 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);

   496 #endif

   497 

   498 #if HAVE_STRCASECMP

   499 #define SDL_strcasecmp  strcasecmp

   500 #elif HAVE_STRICMP

   501 #define SDL_strcasecmp  stricmp

   502 #else

   503 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);

   504 #endif

   505 

   506 #if HAVE_SSCANF

   507 #define SDL_sscanf      sscanf

   508 #else

   509 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);

   510 #endif

   511 

   512 #if HAVE_SNPRINTF

   513 #define SDL_snprintf    snprintf

   514 #else

   515 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);

   516 #endif

   517 

   518 #if HAVE_VSNPRINTF

   519 #define SDL_vsnprintf   vsnprintf

   520 #else

   521 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);

   522 #endif

   523 

   524 /* Ends C function definitions when using C++ */

   525 #ifdef __cplusplus

   526 }

   527 #endif

   528 #include "close_code.h"

   529 

   530 #endif /* _SDL_stdinc_h */
SDL