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 #ifdef HAVE_SYS_TYPES_H 32 #include <sys/types.h> 33 #endif 34 #ifdef HAVE_STDIO_H 35 #include <stdio.h> 36 #endif 37 #if defined(STDC_HEADERS) 38 # include <stdlib.h> 39 # include <stddef.h> 40 # include <stdarg.h> 41 #else 42 # if defined(HAVE_STDLIB_H) 43 # include <stdlib.h> 44 # elif defined(HAVE_MALLOC_H) 45 # include <malloc.h> 46 # endif 47 # if defined(HAVE_STDDEF_H) 48 # include <stddef.h> 49 # endif 50 # if defined(HAVE_STDARG_H) 51 # include <stdarg.h> 52 # endif 53 #endif 54 #ifdef HAVE_STRING_H 55 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H) 56 # include <memory.h> 57 # endif 58 # include <string.h> 59 #endif 60 #ifdef HAVE_STRINGS_H 61 # include <strings.h> 62 #endif 63 #if defined(HAVE_INTTYPES_H) 64 # include <inttypes.h> 65 #elif defined(HAVE_STDINT_H) 66 # include <stdint.h> 67 #endif 68 #ifdef HAVE_CTYPE_H 69 # include <ctype.h> 70 #endif 71 #ifdef HAVE_ICONV_H 72 # include <iconv.h> 73 #endif 74 75 /* The number of elements in an array */ 76 #define SDL_arraysize(array) (sizeof(array)/sizeof(array[0])) 77 #define SDL_TABLESIZE(table) SDL_arraysize(table) 78 79 /* Basic data types */ 80 typedef enum SDL_bool { 81 SDL_FALSE = 0, 82 SDL_TRUE = 1 83 } SDL_bool; 84 85 typedef int8_t Sint8; 86 typedef uint8_t Uint8; 87 typedef int16_t Sint16; 88 typedef uint16_t Uint16; 89 typedef int32_t Sint32; 90 typedef uint32_t Uint32; 91 92 #ifdef SDL_HAS_64BIT_TYPE 93 typedef int64_t Sint64; 94 typedef uint64_t Uint64; 95 #else 96 /* This is really just a hack to prevent the compiler from complaining */ 97 typedef struct { 98 Uint32 hi; 99 Uint32 lo; 100 } Uint64, Sint64; 101 #endif 102 103 /* Make sure the types really have the right sizes */ 104 #define SDL_COMPILE_TIME_ASSERT(name, x) \ 105 typedef int SDL_dummy_ ## name[(x) * 2 - 1] 106 107 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); 108 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); 109 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); 110 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); 111 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); 112 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); 113 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); 114 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8); 115 116 /* Check to make sure enums are the size of ints, for structure packing. 117 For both Watcom C/C++ and Borland C/C++ the compiler option that makes 118 enums having the size of an int must be enabled. 119 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11). 120 */ 121 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */ 122 #ifdef __MWERKS__ 123 #pragma enumsalwaysint on 124 #endif 125 126 typedef enum { 127 DUMMY_ENUM_VALUE 128 } SDL_DUMMY_ENUM; 129 130 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int)); 131 132 133 #include "begin_code.h" 134 /* Set up for C function definitions, even when using C++ */ 135 #ifdef __cplusplus 136 extern "C" { 137 #endif 138 139 #ifdef HAVE_MALLOC 140 #define SDL_malloc malloc 141 #else 142 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size); 143 #endif 144 145 #ifdef HAVE_CALLOC 146 #define SDL_calloc calloc 147 #else 148 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size); 149 #endif 150 151 #ifdef HAVE_REALLOC 152 #define SDL_realloc realloc 153 #else 154 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size); 155 #endif 156 157 #ifdef HAVE_FREE 158 #define SDL_free free 159 #else 160 extern DECLSPEC void SDLCALL SDL_free(void *mem); 161 #endif 162 163 #if defined(HAVE_ALLOCA) && !defined(alloca) 164 # if defined(HAVE_ALLOCA_H) 165 # include <alloca.h> 166 # elif defined(__GNUC__) 167 # define alloca __builtin_alloca 168 # elif defined(_MSC_VER) 169 # include <malloc.h> 170 # define alloca _alloca 171 # elif defined(__WATCOMC__) 172 # include <malloc.h> 173 # elif defined(__DMC__) 174 # include <stdlib.h> 175 # elif defined(__AIX__) 176 #pragma alloca 177 # elif defined(__MRC__) 178 void *alloca (unsigned); 179 # else 180 char *alloca (); 181 # endif 182 #endif 183 #ifdef HAVE_ALLOCA 184 #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*count) 185 #define SDL_stack_free(data) 186 #else 187 #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*count) 188 #define SDL_stack_free(data) SDL_free(data) 189 #endif 190 191 #ifdef HAVE_GETENV 192 #define SDL_getenv getenv 193 #else 194 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name); 195 #endif 196 197 #ifdef HAVE_PUTENV 198 #define SDL_putenv putenv 199 #else 200 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable); 201 #endif 202 203 #ifdef HAVE_QSORT 204 #define SDL_qsort qsort 205 #else 206 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, 207 int (*compare)(const void *, const void *)); 208 #endif 209 210 #ifdef HAVE_ABS 211 #define SDL_abs abs 212 #else 213 #define SDL_abs(X) ((X) < 0 ? -(X) : (X)) 214 #endif 215 216 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y)) 217 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y)) 218 219 #ifdef HAVE_CTYPE_H 220 #define SDL_isdigit(X) isdigit(X) 221 #define SDL_isspace(X) isspace(X) 222 #define SDL_toupper(X) toupper(X) 223 #define SDL_tolower(X) tolower(X) 224 #else 225 #define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9')) 226 #define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n')) 227 #define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X)) 228 #define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X)) 229 #endif 230 231 #ifdef HAVE_MEMSET 232 #define SDL_memset memset 233 #else 234 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len); 235 #endif 236 237 #if defined(__GNUC__) && defined(i386) 238 #define SDL_memset4(dst, val, len) \ 239 do { \ 240 int u0, u1, u2; \ 241 __asm__ __volatile__ ( \ 242 "cld\n\t" \ 243 "rep ; stosl\n\t" \ 244 : "=&D" (u0), "=&a" (u1), "=&c" (u2) \ 245 : "0" (dst), "1" (val), "2" ((Uint32)(len)) \ 246 : "memory" ); \ 247 } while(0) 248 #endif 249 #ifndef SDL_memset4 250 #define SDL_memset4(dst, val, len) \ 251 do { \ 252 unsigned _count = (len); \ 253 unsigned _n = (_count + 3) / 4; \ 254 Uint32 *_p = (Uint32 *)(dst); \ 255 Uint32 _val = (val); \ 256 switch (_count % 4) { \ 257 case 0: do { *_p++ = _val; \ 258 case 3: *_p++ = _val; \ 259 case 2: *_p++ = _val; \ 260 case 1: *_p++ = _val; \ 261 } while ( --_n ); \ 262 } \ 263 } while(0) 264 #endif 265 266 #if defined(__GNUC__) && defined(i386) 267 #define SDL_memcpy(dst, src, len) \ 268 do { \ 269 int u0, u1, u2; \ 270 __asm__ __volatile__ ( \ 271 "cld\n\t" \ 272 "rep ; movsl\n\t" \ 273 "testb $2,%b4\n\t" \ 274 "je 1f\n\t" \ 275 "movsw\n" \ 276 "1:\ttestb $1,%b4\n\t" \ 277 "je 2f\n\t" \ 278 "movsb\n" \ 279 "2:" \ 280 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \ 281 : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \ 282 : "memory" ); \ 283 } while(0) 284 #endif 285 #ifndef SDL_memcpy 286 #ifdef HAVE_MEMCPY 287 #define SDL_memcpy memcpy 288 #elif defined(HAVE_BCOPY) 289 #define SDL_memcpy(d, s, n) bcopy((s), (d), (n)) 290 #else 291 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len); 292 #endif 293 #endif 294 295 #if defined(__GNUC__) && defined(i386) 296 #define SDL_memcpy4(dst, src, len) \ 297 do { \ 298 int ecx, edi, esi; \ 299 __asm__ __volatile__ ( \ 300 "cld\n\t" \ 301 "rep ; movsl" \ 302 : "=&c" (ecx), "=&D" (edi), "=&S" (esi) \ 303 : "0" ((unsigned)(len)), "1" (dst), "2" (src) \ 304 : "memory" ); \ 305 } while(0) 306 #endif 307 #ifndef SDL_memcpy4 308 #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2) 309 #endif 310 311 #if defined(__GNUC__) && defined(i386) 312 #define SDL_revcpy(dst, src, len) \ 313 do { \ 314 int u0, u1, u2; \ 315 char *dstp = (char *)(dst); \ 316 char *srcp = (char *)(src); \ 317 int n = (len); \ 318 if ( n >= 4 ) { \ 319 __asm__ __volatile__ ( \ 320 "std\n\t" \ 321 "rep ; movsl\n\t" \ 322 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \ 323 : "0" (n >> 2), \ 324 "1" (dstp+(n-4)), "2" (srcp+(n-4)) \ 325 : "memory" ); \ 326 } \ 327 switch (n & 3) { \ 328 case 3: dstp[2] = srcp[2]; \ 329 case 2: dstp[1] = srcp[1]; \ 330 case 1: dstp[0] = srcp[0]; \ 331 break; \ 332 default: \ 333 break; \ 334 } \ 335 } while(0) 336 #endif 337 #ifndef SDL_revcpy 338 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len); 339 #endif 340 341 #ifdef HAVE_MEMMOVE 342 #define SDL_memmove memmove 343 #elif defined(HAVE_BCOPY) 344 #define SDL_memmove(d, s, n) bcopy((s), (d), (n)) 345 #else 346 #define SDL_memmove(dst, src, len) \ 347 do { \ 348 if ( dst < src ) { \ 349 SDL_memcpy(dst, src, len); \ 350 } else { \ 351 SDL_revcpy(dst, src, len); \ 352 } \ 353 } while(0) 354 #endif 355 356 #ifdef HAVE_MEMCMP 357 #define SDL_memcmp memcmp 358 #else 359 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len); 360 #endif 361 362 #ifdef HAVE_STRLEN 363 #define SDL_strlen strlen 364 #else 365 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string); 366 #endif 367 368 #ifdef HAVE_STRLCPY 369 #define SDL_strlcpy strlcpy 370 #else 371 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen); 372 #endif 373 374 #ifdef HAVE_STRLCAT 375 #define SDL_strlcat strlcat 376 #else 377 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen); 378 #endif 379 380 #ifdef HAVE_STRDUP 381 #define SDL_strdup strdup 382 #else 383 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string); 384 #endif 385 386 #ifdef HAVE__STRREV 387 #define SDL_strrev _strrev 388 #else 389 extern DECLSPEC char * SDLCALL SDL_strrev(char *string); 390 #endif 391 392 #ifdef HAVE__STRUPR 393 #define SDL_strupr _strupr 394 #else 395 extern DECLSPEC char * SDLCALL SDL_strupr(char *string); 396 #endif 397 398 #ifdef HAVE__STRLWR 399 #define SDL_strlwr _strlwr 400 #else 401 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string); 402 #endif 403 404 #ifdef HAVE_STRCHR 405 #define SDL_strchr strchr 406 #elif defined(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 #ifdef HAVE_STRRCHR 413 #define SDL_strrchr strrchr 414 #elif defined(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 #ifdef 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 #ifdef 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 #ifdef 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 #ifdef 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 #ifdef 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 #ifdef 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 #ifdef HAVE_STRTOUL 457 #define SDL_strtoul strtoul 458 #else 459 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base); 460 #endif 461 462 #ifdef SDL_HAS_64BIT_TYPE 463 464 #ifdef HAVE__I64TOA 465 #define SDL_lltoa _i64toa 466 #else 467 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix); 468 #endif 469 470 #ifdef HAVE__UI64TOA 471 #define SDL_ulltoa _ui64toa 472 #else 473 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix); 474 #endif 475 476 #ifdef HAVE_STRTOLL 477 #define SDL_strtoll strtoll 478 #else 479 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base); 480 #endif 481 482 #ifdef HAVE_STRTOULL 483 #define SDL_strtoull strtoull 484 #else 485 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base); 486 #endif 487 488 #endif /* SDL_HAS_64BIT_TYPE */ 489 490 #ifdef HAVE_STRTOD 491 #define SDL_strtod strtod 492 #else 493 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp); 494 #endif 495 496 #ifdef HAVE_ATOI 497 #define SDL_atoi atoi 498 #else 499 #define SDL_atoi(X) SDL_strtol(X, NULL, 0) 500 #endif 501 502 #ifdef HAVE_ATOF 503 #define SDL_atof atof 504 #else 505 #define SDL_atof(X) SDL_strtod(X, NULL) 506 #endif 507 508 #ifdef HAVE_STRCMP 509 #define SDL_strcmp strcmp 510 #else 511 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2); 512 #endif 513 514 #ifdef HAVE_STRNCMP 515 #define SDL_strncmp strncmp 516 #else 517 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen); 518 #endif 519 520 #ifdef HAVE_STRCASECMP 521 #define SDL_strcasecmp strcasecmp 522 #elif defined(HAVE__STRICMP) 523 #define SDL_strcasecmp _stricmp 524 #else 525 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2); 526 #endif 527 528 #ifdef HAVE_STRNCASECMP 529 #define SDL_strncasecmp strncasecmp 530 #elif defined(HAVE__STRNICMP) 531 #define SDL_strncasecmp _strnicmp 532 #else 533 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen); 534 #endif 535 536 #ifdef HAVE_SSCANF 537 #define SDL_sscanf sscanf 538 #else 539 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...); 540 #endif 541 542 #ifdef HAVE_SNPRINTF 543 #define SDL_snprintf snprintf 544 #else 545 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...); 546 #endif 547 548 #ifdef HAVE_VSNPRINTF 549 #define SDL_vsnprintf vsnprintf 550 #else 551 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap); 552 #endif 553 554 /* The SDL implementation of iconv() returns these error codes */ 555 #define SDL_ICONV_ERROR (size_t)-1 556 #define SDL_ICONV_E2BIG (size_t)-2 557 #define SDL_ICONV_EILSEQ (size_t)-3 558 #define SDL_ICONV_EINVAL (size_t)-4 559 560 #ifdef HAVE_ICONV 561 #define SDL_iconv_t iconv_t 562 #define SDL_iconv_open iconv_open 563 #define SDL_iconv_close iconv_close 564 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft); 565 #else 566 typedef struct _SDL_iconv_t *SDL_iconv_t; 567 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode); 568 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); 569 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft); 570 #endif 571 /* This function converts a string between encodings in one pass, returning a 572 string that must be freed with SDL_free() or NULL on error. 573 */ 574 extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, char *inbuf, size_t inbytesleft); 575 #define SDL_iconv_utf8_ascii(S) SDL_iconv_string("ASCII", "UTF-8", S, SDL_strlen(S)+1) 576 #define SDL_iconv_utf8_latin1(S) SDL_iconv_string("LATIN1", "UTF-8", S, SDL_strlen(S)+1) 577 #define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1) 578 #define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1) 579 580 /* Ends C function definitions when using C++ */ 581 #ifdef __cplusplus 582 } 583 #endif 584 #include "close_code.h" 585 586 #endif /* _SDL_stdinc_h */ 587