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 */ 80typedef enum SDL_bool { 81 SDL_FALSE = 0, 82 SDL_TRUE = 1 83} SDL_bool; 84 85typedef int8_t Sint8; 86typedef uint8_t Uint8; 87typedef int16_t Sint16; 88typedef uint16_t Uint16; 89typedef int32_t Sint32; 90typedef uint32_t Uint32; 91 92#ifdef SDL_HAS_64BIT_TYPE 93typedef int64_t Sint64; 94#ifndef SYMBIAN32_GCCE 95typedef uint64_t Uint64; 96#endif 97#else 98/* This is really just a hack to prevent the compiler from complaining */ 99typedef 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 109SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); 110SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); 111SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); 112SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); 113SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); 114SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); 115SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); 116SDL_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 128typedef enum { 129 DUMMY_ENUM_VALUE 130} SDL_DUMMY_ENUM; 131 132#ifndef __NDS__ 133SDL_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 140extern "C" { 141#endif 142 143#ifdef HAVE_MALLOC 144#define SDL_malloc malloc 145#else 146extern DECLSPEC void * SDLCALL SDL_malloc(size_t size); 147#endif 148 149#ifdef HAVE_CALLOC 150#define SDL_calloc calloc 151#else 152extern 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 158extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size); 159#endif 160 161#ifdef HAVE_FREE 162#define SDL_free free 163#else 164extern 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 198extern DECLSPEC char * SDLCALL SDL_getenv(const char *name); 199#endif 200 201#ifdef HAVE_PUTENV 202#define SDL_putenv putenv 203#else 204extern DECLSPEC int SDLCALL SDL_putenv(const char *variable); 205#endif 206 207#ifdef HAVE_QSORT 208#define SDL_qsort qsort 209#else 210extern 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 238extern 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) \ 243do { \ 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) \ 255do { \ 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) \ 275do { \ 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 298extern 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) \ 307do { \ 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) \ 323do { \ 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 348extern 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) \ 357do { \ 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 369extern 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 375extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string); 376#endif 377 378#ifdef HAVE_STRLCPY 379#define SDL_strlcpy strlcpy 380#else 381extern 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 387extern 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 393extern DECLSPEC char * SDLCALL SDL_strdup(const char *string); 394#endif 395 396#ifdef HAVE__STRREV 397#define SDL_strrev _strrev 398#else 399extern DECLSPEC char * SDLCALL SDL_strrev(char *string); 400#endif 401 402#ifdef HAVE__STRUPR 403#define SDL_strupr _strupr 404#else 405extern DECLSPEC char * SDLCALL SDL_strupr(char *string); 406#endif 407 408#ifdef HAVE__STRLWR 409#define SDL_strlwr _strlwr 410#else 411extern 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 419extern 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 427extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c); 428#endif 429 430#ifdef HAVE_STRSTR 431#define SDL_strstr strstr 432#else 433extern 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 445extern 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 457extern 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 463extern 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 469extern 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 477extern 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 483extern 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 489extern 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 495extern 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 503extern 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 521extern 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 527extern 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 535extern 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 543extern 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 549extern 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 555extern 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 561extern 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 575typedef struct _SDL_iconv_t *SDL_iconv_t; 576extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode); 577extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); 578#endif 579extern 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*/ 583extern 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