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(__BORLANDC__) 178 # include <malloc.h> 179 # elif defined(__DMC__) 180 # include <stdlib.h> 181 # elif defined(__AIX__) 182 #pragma alloca 183 # elif defined(__MRC__) 184 void *alloca (unsigned); 185 # else 186 char *alloca (); 187 # endif 188 #endif 189 #ifdef HAVE_ALLOCA 190 #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count)) 191 #define SDL_stack_free(data) 192 #else 193 #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count)) 194 #define SDL_stack_free(data) SDL_free(data) 195 #endif 196 197 #ifdef HAVE_GETENV 198 #define SDL_getenv getenv 199 #else 200 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name); 201 #endif 202 203 #ifdef HAVE_PUTENV 204 #define SDL_putenv putenv 205 #else 206 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable); 207 #endif 208 209 #ifdef HAVE_QSORT 210 #define SDL_qsort qsort 211 #else 212 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, 213 int (*compare)(const void *, const void *)); 214 #endif 215 216 #ifdef HAVE_ABS 217 #define SDL_abs abs 218 #else 219 #define SDL_abs(X) ((X) < 0 ? -(X) : (X)) 220 #endif 221 222 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y)) 223 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y)) 224 225 #ifdef HAVE_CTYPE_H 226 #define SDL_isdigit(X) isdigit(X) 227 #define SDL_isspace(X) isspace(X) 228 #define SDL_toupper(X) toupper(X) 229 #define SDL_tolower(X) tolower(X) 230 #else 231 #define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9')) 232 #define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n')) 233 #define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X)) 234 #define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X)) 235 #endif 236 237 #ifdef HAVE_MEMSET 238 #define SDL_memset memset 239 #else 240 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len); 241 #endif 242 243 #if defined(__GNUC__) && defined(i386) 244 #define SDL_memset4(dst, val, len) \ 245 do { \ 246 int u0, u1, u2; \ 247 __asm__ __volatile__ ( \ 248 "cld\n\t" \ 249 "rep ; stosl\n\t" \ 250 : "=&D" (u0), "=&a" (u1), "=&c" (u2) \ 251 : "0" (dst), "1" (val), "2" ((Uint32)(len)) \ 252 : "memory" ); \ 253 } while(0) 254 #endif 255 #ifndef SDL_memset4 256 #define SDL_memset4(dst, val, len) \ 257 do { \ 258 unsigned _count = (len); \ 259 unsigned _n = (_count + 3) / 4; \ 260 Uint32 *_p = (Uint32 *)(dst); \ 261 Uint32 _val = (val); \ 262 switch (_count % 4) { \ 263 case 0: do { *_p++ = _val; \ 264 case 3: *_p++ = _val; \ 265 case 2: *_p++ = _val; \ 266 case 1: *_p++ = _val; \ 267 } while ( --_n ); \ 268 } \ 269 } while(0) 270 #endif 271 272 /* We can count on memcpy existing on Mac OS X and being well-tuned. */ 273 #if defined(__MACH__) && defined(__APPLE__) 274 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len) 275 #elif defined(__GNUC__) && defined(i386) 276 #define SDL_memcpy(dst, src, len) \ 277 do { \ 278 int u0, u1, u2; \ 279 __asm__ __volatile__ ( \ 280 "cld\n\t" \ 281 "rep ; movsl\n\t" \ 282 "testb $2,%b4\n\t" \ 283 "je 1f\n\t" \ 284 "movsw\n" \ 285 "1:\ttestb $1,%b4\n\t" \ 286 "je 2f\n\t" \ 287 "movsb\n" \ 288 "2:" \ 289 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \ 290 : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \ 291 : "memory" ); \ 292 } while(0) 293 #endif 294 #ifndef SDL_memcpy 295 #ifdef HAVE_MEMCPY 296 #define SDL_memcpy memcpy 297 #elif defined(HAVE_BCOPY) 298 #define SDL_memcpy(d, s, n) bcopy((s), (d), (n)) 299 #else 300 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len); 301 #endif 302 #endif 303 304 /* We can count on memcpy existing on Mac OS X and being well-tuned. */ 305 #if defined(__MACH__) && defined(__APPLE__) 306 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4) 307 #elif defined(__GNUC__) && defined(i386) 308 #define SDL_memcpy4(dst, src, len) \ 309 do { \ 310 int ecx, edi, esi; \ 311 __asm__ __volatile__ ( \ 312 "cld\n\t" \ 313 "rep ; movsl" \ 314 : "=&c" (ecx), "=&D" (edi), "=&S" (esi) \ 315 : "0" ((unsigned)(len)), "1" (dst), "2" (src) \ 316 : "memory" ); \ 317 } while(0) 318 #endif 319 #ifndef SDL_memcpy4 320 #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2) 321 #endif 322 323 #if defined(__GNUC__) && defined(i386) 324 #define SDL_revcpy(dst, src, len) \ 325 do { \ 326 int u0, u1, u2; \ 327 char *dstp = (char *)(dst); \ 328 char *srcp = (char *)(src); \ 329 int n = (len); \ 330 if ( n >= 4 ) { \ 331 __asm__ __volatile__ ( \ 332 "std\n\t" \ 333 "rep ; movsl\n\t" \ 334 : "=&c" (u0), "=&D" (u1), "=&S" (u2) \ 335 : "0" (n >> 2), \ 336 "1" (dstp+(n-4)), "2" (srcp+(n-4)) \ 337 : "memory" ); \ 338 } \ 339 switch (n & 3) { \ 340 case 3: dstp[2] = srcp[2]; \ 341 case 2: dstp[1] = srcp[1]; \ 342 case 1: dstp[0] = srcp[0]; \ 343 break; \ 344 default: \ 345 break; \ 346 } \ 347 } while(0) 348 #endif 349 #ifndef SDL_revcpy 350 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len); 351 #endif 352 353 #ifdef HAVE_MEMMOVE 354 #define SDL_memmove memmove 355 #elif defined(HAVE_BCOPY) 356 #define SDL_memmove(d, s, n) bcopy((s), (d), (n)) 357 #else 358 #define SDL_memmove(dst, src, len) \ 359 do { \ 360 if ( dst < src ) { \ 361 SDL_memcpy(dst, src, len); \ 362 } else { \ 363 SDL_revcpy(dst, src, len); \ 364 } \ 365 } while(0) 366 #endif 367 368 #ifdef HAVE_MEMCMP 369 #define SDL_memcmp memcmp 370 #else 371 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len); 372 #endif 373 374 #ifdef HAVE_STRLEN 375 #define SDL_strlen strlen 376 #else 377 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string); 378 #endif 379 380 #ifdef HAVE_STRLCPY 381 #define SDL_strlcpy strlcpy 382 #else 383 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen); 384 #endif 385 386 #ifdef HAVE_STRLCAT 387 #define SDL_strlcat strlcat 388 #else 389 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen); 390 #endif 391 392 #ifdef HAVE_STRDUP 393 #define SDL_strdup strdup 394 #else 395 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string); 396 #endif 397 398 #ifdef HAVE__STRREV 399 #define SDL_strrev _strrev 400 #else 401 extern DECLSPEC char * SDLCALL SDL_strrev(char *string); 402 #endif 403 404 #ifdef HAVE__STRUPR 405 #define SDL_strupr _strupr 406 #else 407 extern DECLSPEC char * SDLCALL SDL_strupr(char *string); 408 #endif 409 410 #ifdef HAVE__STRLWR 411 #define SDL_strlwr _strlwr 412 #else 413 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string); 414 #endif 415 416 #ifdef HAVE_STRCHR 417 #define SDL_strchr strchr 418 #elif defined(HAVE_INDEX) 419 #define SDL_strchr index 420 #else 421 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c); 422 #endif 423 424 #ifdef HAVE_STRRCHR 425 #define SDL_strrchr strrchr 426 #elif defined(HAVE_RINDEX) 427 #define SDL_strrchr rindex 428 #else 429 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c); 430 #endif 431 432 #ifdef HAVE_STRSTR 433 #define SDL_strstr strstr 434 #else 435 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle); 436 #endif 437 438 #ifdef HAVE_ITOA 439 #define SDL_itoa itoa 440 #else 441 #define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix) 442 #endif 443 444 #ifdef HAVE__LTOA 445 #define SDL_ltoa _ltoa 446 #else 447 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix); 448 #endif 449 450 #ifdef HAVE__UITOA 451 #define SDL_uitoa _uitoa 452 #else 453 #define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix) 454 #endif 455 456 #ifdef HAVE__ULTOA 457 #define SDL_ultoa _ultoa 458 #else 459 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix); 460 #endif 461 462 #ifdef HAVE_STRTOL 463 #define SDL_strtol strtol 464 #else 465 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base); 466 #endif 467 468 #ifdef HAVE_STRTOUL 469 #define SDL_strtoul strtoul 470 #else 471 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base); 472 #endif 473 474 #ifdef SDL_HAS_64BIT_TYPE 475 476 #ifdef HAVE__I64TOA 477 #define SDL_lltoa _i64toa 478 #else 479 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix); 480 #endif 481 482 #ifdef HAVE__UI64TOA 483 #define SDL_ulltoa _ui64toa 484 #else 485 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix); 486 #endif 487 488 #ifdef HAVE_STRTOLL 489 #define SDL_strtoll strtoll 490 #else 491 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base); 492 #endif 493 494 #ifdef HAVE_STRTOULL 495 #define SDL_strtoull strtoull 496 #else 497 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base); 498 #endif 499 500 #endif /* SDL_HAS_64BIT_TYPE */ 501 502 #ifdef HAVE_STRTOD 503 #define SDL_strtod strtod 504 #else 505 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp); 506 #endif 507 508 #ifdef HAVE_ATOI 509 #define SDL_atoi atoi 510 #else 511 #define SDL_atoi(X) SDL_strtol(X, NULL, 0) 512 #endif 513 514 #ifdef HAVE_ATOF 515 #define SDL_atof atof 516 #else 517 #define SDL_atof(X) SDL_strtod(X, NULL) 518 #endif 519 520 #ifdef HAVE_STRCMP 521 #define SDL_strcmp strcmp 522 #else 523 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2); 524 #endif 525 526 #ifdef HAVE_STRNCMP 527 #define SDL_strncmp strncmp 528 #else 529 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen); 530 #endif 531 532 #ifdef HAVE_STRCASECMP 533 #define SDL_strcasecmp strcasecmp 534 #elif defined(HAVE__STRICMP) 535 #define SDL_strcasecmp _stricmp 536 #else 537 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2); 538 #endif 539 540 #ifdef HAVE_STRNCASECMP 541 #define SDL_strncasecmp strncasecmp 542 #elif defined(HAVE__STRNICMP) 543 #define SDL_strncasecmp _strnicmp 544 #else 545 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen); 546 #endif 547 548 #ifdef HAVE_SSCANF 549 #define SDL_sscanf sscanf 550 #else 551 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...); 552 #endif 553 554 #ifdef HAVE_SNPRINTF 555 #define SDL_snprintf snprintf 556 #else 557 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...); 558 #endif 559 560 #ifdef HAVE_VSNPRINTF 561 #define SDL_vsnprintf vsnprintf 562 #else 563 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap); 564 #endif 565 566 /* The SDL implementation of iconv() returns these error codes */ 567 #define SDL_ICONV_ERROR (size_t)-1 568 #define SDL_ICONV_E2BIG (size_t)-2 569 #define SDL_ICONV_EILSEQ (size_t)-3 570 #define SDL_ICONV_EINVAL (size_t)-4 571 572 #ifdef HAVE_ICONV 573 #define SDL_iconv_t iconv_t 574 #define SDL_iconv_open iconv_open 575 #define SDL_iconv_close iconv_close 576 #else 577 typedef struct _SDL_iconv_t *SDL_iconv_t; 578 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode); 579 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); 580 #endif 581 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft); 582 /* This function converts a string between encodings in one pass, returning a 583 string that must be freed with SDL_free() or NULL on error. 584 */ 585 extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft); 586 #define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1) 587 #define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1) 588 #define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1) 589 590 /* Ends C function definitions when using C++ */ 591 #ifdef __cplusplus 592 } 593 #endif 594 #include "close_code.h" 595 596 #endif /* _SDL_stdinc_h */ 597