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 #ifndef SYMBIAN32_GCCE 95 typedef uint64_t Uint64; 96 #endif 97 #else 98 /* This is really just a hack to prevent the compiler from complaining */ 99 typedef struct { 100 Uint32 hi; 101 Uint32 lo; 102 } Uint64, Sint64; 103 #endif 104 105 /* Make sure the types really have the right sizes */ 106 #define SDL_COMPILE_TIME_ASSERT(name, x) \ 107 typedef int SDL_dummy_ ## name[(x) * 2 - 1] 108 109 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); 110 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); 111 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); 112 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); 113 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); 114 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); 115 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); 116 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8); 117 118 /* Check to make sure enums are the size of ints, for structure packing. 119 For both Watcom C/C++ and Borland C/C++ the compiler option that makes 120 enums having the size of an int must be enabled. 121 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11). 122 */ 123 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */ 124 #ifdef __MWERKS__ 125 #pragma enumsalwaysint on 126 #endif 127 128 typedef enum { 129 DUMMY_ENUM_VALUE 130 } SDL_DUMMY_ENUM; 131 132 #ifndef __NDS__ 133 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int)); 134 #endif 135 136 137 #include "begin_code.h" 138 /* Set up for C function definitions, even when using C++ */ 139 #ifdef __cplusplus 140 extern "C" { 141 #endif 142 143 #ifdef HAVE_MALLOC 144 #define SDL_malloc malloc 145 #else 146 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size); 147 #endif 148 149 #ifdef HAVE_CALLOC 150 #define SDL_calloc calloc 151 #else 152 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size); 153 #endif 154 155 #ifdef HAVE_REALLOC 156 #define SDL_realloc realloc 157 #else 158 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size); 159 #endif 160 161 #ifdef HAVE_FREE 162 #define SDL_free free 163 #else 164 extern DECLSPEC void SDLCALL SDL_free(void *mem); 165 #endif 166 167 #if defined(HAVE_ALLOCA) && !defined(alloca) 168 # if defined(HAVE_ALLOCA_H) 169 # include <alloca.h> 170 # elif defined(__GNUC__) 171 # define alloca __builtin_alloca 172 # elif defined(_MSC_VER) 173 # include <malloc.h> 174 # define alloca _alloca 175 # elif defined(__WATCOMC__) 176 # include <malloc.h> 177 # elif defined(__DMC__) 178 # include <stdlib.h> 179 # elif defined(__AIX__) 180 #pragma alloca 181 # elif defined(__MRC__) 182 void *alloca (unsigned); 183 # else 184 char *alloca (); 185 # endif 186 #endif 187 #ifdef HAVE_ALLOCA 188 #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count)) 189 #define SDL_stack_free(data) 190 #else 191 #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count)) 192 #define SDL_stack_free(data) SDL_free(data) 193 #endif 194 195 #ifdef HAVE_GETENV 196 #define SDL_getenv getenv 197 #else 198 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name); 199 #endif 200 201 #ifdef HAVE_PUTENV 202 #define SDL_putenv putenv 203 #else 204 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable); 205 #endif 206 207 #ifdef HAVE_QSORT 208 #define SDL_qsort qsort 209 #else 210 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, 211 int (*compare)(const void *, const void *)); 212 #endif 213 214 #ifdef HAVE_ABS 215 #define SDL_abs abs 216 #else 217 #define SDL_abs(X) ((X) < 0 ? -(X) : (X)) 218 #endif 219 220 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y)) 221 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y)) 222 223 #ifdef HAVE_CTYPE_H 224 #define SDL_isdigit(X) isdigit(X) 225 #define SDL_isspace(X) isspace(X) 226 #define SDL_toupper(X) toupper(X) 227 #define SDL_tolower(X) tolower(X) 228 #else 229 #define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9')) 230 #define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n')) 231 #define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X)) 232 #define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X)) 233 #endif 234 235 #ifdef HAVE_MEMSET 236 #define SDL_memset memset 237 #else 238 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len); 239 #endif 240 241 #if defined(__GNUC__) && defined(i386) 242 #define SDL_memset4(dst, val, len) \ 243 do { \ 244 int u0, u1, u2; \ 245 __asm__ __volatile__ ( \ 246 "cld\n\t" \ 247 "rep ; stosl\n\t" \ 248 : "=&D" (u0), "=&a" (u1), "=&c" (u2) \ 249 : "0" (dst), "1" (val), "2" ((Uint32)(len)) \ 250 : "memory" ); \ 251 } while(0) 252 #endif 253 #ifndef SDL_memset4 254 #define SDL_memset4(dst, val, len) \ 255 do { \ 256 unsigned _count = (len); \ 257 unsigned _n = (_count + 3) / 4; \ 258 Uint32 *_p = (Uint32 *)(dst); \ 259 Uint32 _val = (val); \ 260 switch (_count % 4) { \ 261 case 0: do { *_p++ = _val; \ 262 case 3: *_p++ = _val; \ 263 case 2: *_p++ = _val; \ 264 case 1: *_p++ = _val; \ 265 } while ( --_n ); \ 266 } \ 267 } while(0) 268 #endif 269 270 /* We can count on memcpy existing on Mac OS X and being well-tuned. */ 271 #if defined(__MACH__) && defined(__APPLE__) 272 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len) 273 #elif defined(__GNUC__) && defined(i386) 274 #define SDL_memcpy(dst, src, len) \ 275 do { \ 276 int u0, u1, u2; \ 277 __asm__ __volatile__ ( \ 278 "cld\n\t" \ 279 "rep ; movsl\n\t" \ 280 "testb $2,%b4\n\t" \ 281 "je 1f\n\t" \ 282 "movsw\n" \ 283 "1:\ttestb $1,%b4\n\t" \ 284 "je 2f\n\t" \ 285 "movsb\n" \ 286 "2:" \ 287 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \ 288 : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \ 289 : "memory" ); \ 290 } while(0) 291 #endif 292 #ifndef SDL_memcpy 293 #ifdef HAVE_MEMCPY 294 #define SDL_memcpy memcpy 295 #elif defined(HAVE_BCOPY) 296 #define SDL_memcpy(d, s, n) bcopy((s), (d), (n)) 297 #else 298 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len); 299 #endif 300 #endif 301 302 /* We can count on memcpy existing on Mac OS X and being well-tuned. */ 303 #if defined(__MACH__) && defined(__APPLE__) 304 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4) 305 #elif defined(__GNUC__) && defined(i386) 306 #define SDL_memcpy4(dst, src, len) \ 307 do { \ 308 int ecx, edi, esi; \ 309 __asm__ __volatile__ ( \ 310 "cld\n\t" \ 311 "rep ; movsl" \ 312 : "=&c" (ecx), "=&D" (edi), "=&S" (esi) \ 313 : "0" ((unsigned)(len)), "1" (dst), "2" (src) \ 314 : "memory" ); \ 315 } while(0) 316 #endif 317 #ifndef SDL_memcpy4 318 #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2) 319 #endif 320 321 #if defined(__GNUC__) && defined(i386) 322 #define SDL_revcpy(dst, src, len) \ 323 do { \ 324 int u0, u1, u2; \ 325 char *dstp = (char *)(dst); \ 326 char *srcp = (char *)(src); \ 327 int n = (len); \ 328 if ( n >= 4 ) { \ 329 __asm__ __volatile__ ( \ 330 "std\n\t" \ 331 "rep ; movsl\n\t" \ 332 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \ 333 : "0" (n >> 2), \ 334 "1" (dstp+(n-4)), "2" (srcp+(n-4)) \ 335 : "memory" ); \ 336 } \ 337 switch (n & 3) { \ 338 case 3: dstp[2] = srcp[2]; \ 339 case 2: dstp[1] = srcp[1]; \ 340 case 1: dstp[0] = srcp[0]; \ 341 break; \ 342 default: \ 343 break; \ 344 } \ 345 } while(0) 346 #endif 347 #ifndef SDL_revcpy 348 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len); 349 #endif 350 351 #ifdef HAVE_MEMMOVE 352 #define SDL_memmove memmove 353 #elif defined(HAVE_BCOPY) 354 #define SDL_memmove(d, s, n) bcopy((s), (d), (n)) 355 #else 356 #define SDL_memmove(dst, src, len) \ 357 do { \ 358 if ( dst < src ) { \ 359 SDL_memcpy(dst, src, len); \ 360 } else { \ 361 SDL_revcpy(dst, src, len); \ 362 } \ 363 } while(0) 364 #endif 365 366 #ifdef HAVE_MEMCMP 367 #define SDL_memcmp memcmp 368 #else 369 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len); 370 #endif 371 372 #ifdef HAVE_STRLEN 373 #define SDL_strlen strlen 374 #else 375 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string); 376 #endif 377 378 #ifdef HAVE_STRLCPY 379 #define SDL_strlcpy strlcpy 380 #else 381 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen); 382 #endif 383 384 #ifdef HAVE_STRLCAT 385 #define SDL_strlcat strlcat 386 #else 387 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen); 388 #endif 389 390 #ifdef HAVE_STRDUP 391 #define SDL_strdup strdup 392 #else 393 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string); 394 #endif 395 396 #ifdef HAVE__STRREV 397 #define SDL_strrev _strrev 398 #else 399 extern DECLSPEC char * SDLCALL SDL_strrev(char *string); 400 #endif 401 402 #ifdef HAVE__STRUPR 403 #define SDL_strupr _strupr 404 #else 405 extern DECLSPEC char * SDLCALL SDL_strupr(char *string); 406 #endif 407 408 #ifdef HAVE__STRLWR 409 #define SDL_strlwr _strlwr 410 #else 411 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string); 412 #endif 413 414 #ifdef HAVE_STRCHR 415 #define SDL_strchr strchr 416 #elif defined(HAVE_INDEX) 417 #define SDL_strchr index 418 #else 419 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c); 420 #endif 421 422 #ifdef HAVE_STRRCHR 423 #define SDL_strrchr strrchr 424 #elif defined(HAVE_RINDEX) 425 #define SDL_strrchr rindex 426 #else 427 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c); 428 #endif 429 430 #ifdef HAVE_STRSTR 431 #define SDL_strstr strstr 432 #else 433 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle); 434 #endif 435 436 #ifdef HAVE_ITOA 437 #define SDL_itoa itoa 438 #else 439 #define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix) 440 #endif 441 442 #ifdef HAVE__LTOA 443 #define SDL_ltoa _ltoa 444 #else 445 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix); 446 #endif 447 448 #ifdef HAVE__UITOA 449 #define SDL_uitoa _uitoa 450 #else 451 #define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix) 452 #endif 453 454 #ifdef HAVE__ULTOA 455 #define SDL_ultoa _ultoa 456 #else 457 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix); 458 #endif 459 460 #ifdef HAVE_STRTOL 461 #define SDL_strtol strtol 462 #else 463 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base); 464 #endif 465 466 #ifdef HAVE_STRTOUL 467 #define SDL_strtoul strtoul 468 #else 469 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base); 470 #endif 471 472 #ifdef SDL_HAS_64BIT_TYPE 473 474 #ifdef HAVE__I64TOA 475 #define SDL_lltoa _i64toa 476 #else 477 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix); 478 #endif 479 480 #ifdef HAVE__UI64TOA 481 #define SDL_ulltoa _ui64toa 482 #else 483 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix); 484 #endif 485 486 #ifdef HAVE_STRTOLL 487 #define SDL_strtoll strtoll 488 #else 489 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base); 490 #endif 491 492 #ifdef HAVE_STRTOULL 493 #define SDL_strtoull strtoull 494 #else 495 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base); 496 #endif 497 498 #endif /* SDL_HAS_64BIT_TYPE */ 499 500 #ifdef HAVE_STRTOD 501 #define SDL_strtod strtod 502 #else 503 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp); 504 #endif 505 506 #ifdef HAVE_ATOI 507 #define SDL_atoi atoi 508 #else 509 #define SDL_atoi(X) SDL_strtol(X, NULL, 0) 510 #endif 511 512 #ifdef HAVE_ATOF 513 #define SDL_atof atof 514 #else 515 #define SDL_atof(X) SDL_strtod(X, NULL) 516 #endif 517 518 #ifdef HAVE_STRCMP 519 #define SDL_strcmp strcmp 520 #else 521 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2); 522 #endif 523 524 #ifdef HAVE_STRNCMP 525 #define SDL_strncmp strncmp 526 #else 527 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen); 528 #endif 529 530 #ifdef HAVE_STRCASECMP 531 #define SDL_strcasecmp strcasecmp 532 #elif defined(HAVE__STRICMP) 533 #define SDL_strcasecmp _stricmp 534 #else 535 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2); 536 #endif 537 538 #ifdef HAVE_STRNCASECMP 539 #define SDL_strncasecmp strncasecmp 540 #elif defined(HAVE__STRNICMP) 541 #define SDL_strncasecmp _strnicmp 542 #else 543 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen); 544 #endif 545 546 #ifdef HAVE_SSCANF 547 #define SDL_sscanf sscanf 548 #else 549 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...); 550 #endif 551 552 #ifdef HAVE_SNPRINTF 553 #define SDL_snprintf snprintf 554 #else 555 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...); 556 #endif 557 558 #ifdef HAVE_VSNPRINTF 559 #define SDL_vsnprintf vsnprintf 560 #else 561 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap); 562 #endif 563 564 /* The SDL implementation of iconv() returns these error codes */ 565 #define SDL_ICONV_ERROR (size_t)-1 566 #define SDL_ICONV_E2BIG (size_t)-2 567 #define SDL_ICONV_EILSEQ (size_t)-3 568 #define SDL_ICONV_EINVAL (size_t)-4 569 570 #ifdef HAVE_ICONV 571 #define SDL_iconv_t iconv_t 572 #define SDL_iconv_open iconv_open 573 #define SDL_iconv_close iconv_close 574 #else 575 typedef struct _SDL_iconv_t *SDL_iconv_t; 576 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode); 577 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); 578 #endif 579 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft); 580 /* This function converts a string between encodings in one pass, returning a 581 string that must be freed with SDL_free() or NULL on error. 582 */ 583 extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft); 584 #define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1) 585 #define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1) 586 #define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1) 587 588 /* Ends C function definitions when using C++ */ 589 #ifdef __cplusplus 590 } 591 #endif 592 #include "close_code.h" 593 594 #endif /* _SDL_stdinc_h */ 595