SDL_stdinc.h
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上传日期:2022-06-22
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- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2006 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- /* This is a general header that includes C language support */
- #ifndef _SDL_stdinc_h
- #define _SDL_stdinc_h
- #include "SDL_config.h"
- #ifdef HAVE_SYS_TYPES_H
- #include <sys/types.h>
- #endif
- #ifdef HAVE_STDIO_H
- #include <stdio.h>
- #endif
- #if defined(STDC_HEADERS)
- # include <stdlib.h>
- # include <stddef.h>
- # include <stdarg.h>
- #else
- # if defined(HAVE_STDLIB_H)
- # include <stdlib.h>
- # elif defined(HAVE_MALLOC_H)
- # include <malloc.h>
- # endif
- # if defined(HAVE_STDDEF_H)
- # include <stddef.h>
- # endif
- # if defined(HAVE_STDARG_H)
- # include <stdarg.h>
- # endif
- #endif
- #ifdef HAVE_STRING_H
- # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
- # include <memory.h>
- # endif
- # include <string.h>
- #endif
- #ifdef HAVE_STRINGS_H
- # include <strings.h>
- #endif
- #if defined(HAVE_INTTYPES_H)
- # include <inttypes.h>
- #elif defined(HAVE_STDINT_H)
- # include <stdint.h>
- #endif
- #ifdef HAVE_CTYPE_H
- # include <ctype.h>
- #endif
- #ifdef HAVE_ICONV_H
- # include <iconv.h>
- #endif
- /* The number of elements in an array */
- #define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
- #define SDL_TABLESIZE(table) SDL_arraysize(table)
- /* Basic data types */
- typedef enum SDL_bool {
- SDL_FALSE = 0,
- SDL_TRUE = 1
- } SDL_bool;
- typedef int8_t Sint8;
- typedef uint8_t Uint8;
- typedef int16_t Sint16;
- typedef uint16_t Uint16;
- typedef int32_t Sint32;
- typedef uint32_t Uint32;
- #ifdef SDL_HAS_64BIT_TYPE
- typedef int64_t Sint64;
- #ifndef SYMBIAN32_GCCE
- typedef uint64_t Uint64;
- #endif
- #else
- /* This is really just a hack to prevent the compiler from complaining */
- typedef struct {
- Uint32 hi;
- Uint32 lo;
- } Uint64, Sint64;
- #endif
- /* Make sure the types really have the right sizes */
- #define SDL_COMPILE_TIME_ASSERT(name, x)
- typedef int SDL_dummy_ ## name[(x) * 2 - 1]
- SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
- SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
- SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
- SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
- SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
- SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
- SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
- SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
- /* Check to make sure enums are the size of ints, for structure packing.
- For both Watcom C/C++ and Borland C/C++ the compiler option that makes
- enums having the size of an int must be enabled.
- This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
- */
- /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
- #ifdef __MWERKS__
- #pragma enumsalwaysint on
- #endif
- typedef enum {
- DUMMY_ENUM_VALUE
- } SDL_DUMMY_ENUM;
- #ifndef __NDS__
- SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
- #endif
- #include "begin_code.h"
- /* Set up for C function definitions, even when using C++ */
- #ifdef __cplusplus
- extern "C" {
- #endif
- #ifdef HAVE_MALLOC
- #define SDL_malloc malloc
- #else
- extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
- #endif
- #ifdef HAVE_CALLOC
- #define SDL_calloc calloc
- #else
- extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
- #endif
- #ifdef HAVE_REALLOC
- #define SDL_realloc realloc
- #else
- extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
- #endif
- #ifdef HAVE_FREE
- #define SDL_free free
- #else
- extern DECLSPEC void SDLCALL SDL_free(void *mem);
- #endif
- #if defined(HAVE_ALLOCA) && !defined(alloca)
- # if defined(HAVE_ALLOCA_H)
- # include <alloca.h>
- # elif defined(__GNUC__)
- # define alloca __builtin_alloca
- # elif defined(_MSC_VER)
- # include <malloc.h>
- # define alloca _alloca
- # elif defined(__WATCOMC__)
- # include <malloc.h>
- # elif defined(__BORLANDC__)
- # include <malloc.h>
- # elif defined(__DMC__)
- # include <stdlib.h>
- # elif defined(__AIX__)
- #pragma alloca
- # elif defined(__MRC__)
- void *alloca (unsigned);
- # else
- char *alloca ();
- # endif
- #endif
- #ifdef HAVE_ALLOCA
- #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
- #define SDL_stack_free(data)
- #else
- #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
- #define SDL_stack_free(data) SDL_free(data)
- #endif
- #ifdef HAVE_GETENV
- #define SDL_getenv getenv
- #else
- extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
- #endif
- #ifdef HAVE_PUTENV
- #define SDL_putenv putenv
- #else
- extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
- #endif
- #ifdef HAVE_QSORT
- #define SDL_qsort qsort
- #else
- extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
- int (*compare)(const void *, const void *));
- #endif
- #ifdef HAVE_ABS
- #define SDL_abs abs
- #else
- #define SDL_abs(X) ((X) < 0 ? -(X) : (X))
- #endif
- #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
- #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
- #ifdef HAVE_CTYPE_H
- #define SDL_isdigit(X) isdigit(X)
- #define SDL_isspace(X) isspace(X)
- #define SDL_toupper(X) toupper(X)
- #define SDL_tolower(X) tolower(X)
- #else
- #define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9'))
- #define SDL_isspace(X) (((X) == ' ') || ((X) == 't') || ((X) == 'r') || ((X) == 'n'))
- #define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
- #define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
- #endif
- #ifdef HAVE_MEMSET
- #define SDL_memset memset
- #else
- extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
- #endif
- #if defined(__GNUC__) && defined(i386)
- #define SDL_memset4(dst, val, len)
- do {
- int u0, u1, u2;
- __asm__ __volatile__ (
- "cldnt"
- "rep ; stoslnt"
- : "=&D" (u0), "=&a" (u1), "=&c" (u2)
- : "0" (dst), "1" (val), "2" ((Uint32)(len))
- : "memory" );
- } while(0)
- #endif
- #ifndef SDL_memset4
- #define SDL_memset4(dst, val, len)
- do {
- unsigned _count = (len);
- unsigned _n = (_count + 3) / 4;
- Uint32 *_p = (Uint32 *)(dst);
- Uint32 _val = (val);
- switch (_count % 4) {
- case 0: do { *_p++ = _val;
- case 3: *_p++ = _val;
- case 2: *_p++ = _val;
- case 1: *_p++ = _val;
- } while ( --_n );
- }
- } while(0)
- #endif
- /* We can count on memcpy existing on Mac OS X and being well-tuned. */
- #if defined(__MACH__) && defined(__APPLE__)
- #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
- #elif defined(__GNUC__) && defined(i386)
- #define SDL_memcpy(dst, src, len)
- do {
- int u0, u1, u2;
- __asm__ __volatile__ (
- "cldnt"
- "rep ; movslnt"
- "testb $2,%b4nt"
- "je 1fnt"
- "movswn"
- "1:ttestb $1,%b4nt"
- "je 2fnt"
- "movsbn"
- "2:"
- : "=&c" (u0), "=&D" (u1), "=&S" (u2)
- : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src)
- : "memory" );
- } while(0)
- #endif
- #ifndef SDL_memcpy
- #ifdef HAVE_MEMCPY
- #define SDL_memcpy memcpy
- #elif defined(HAVE_BCOPY)
- #define SDL_memcpy(d, s, n) bcopy((s), (d), (n))
- #else
- extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
- #endif
- #endif
- /* We can count on memcpy existing on Mac OS X and being well-tuned. */
- #if defined(__MACH__) && defined(__APPLE__)
- #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
- #elif defined(__GNUC__) && defined(i386)
- #define SDL_memcpy4(dst, src, len)
- do {
- int ecx, edi, esi;
- __asm__ __volatile__ (
- "cldnt"
- "rep ; movsl"
- : "=&c" (ecx), "=&D" (edi), "=&S" (esi)
- : "0" ((unsigned)(len)), "1" (dst), "2" (src)
- : "memory" );
- } while(0)
- #endif
- #ifndef SDL_memcpy4
- #define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
- #endif
- #if defined(__GNUC__) && defined(i386)
- #define SDL_revcpy(dst, src, len)
- do {
- int u0, u1, u2;
- char *dstp = (char *)(dst);
- char *srcp = (char *)(src);
- int n = (len);
- if ( n >= 4 ) {
- __asm__ __volatile__ (
- "stdnt"
- "rep ; movslnt"
- : "=&c" (u0), "=&D" (u1), "=&S" (u2)
- : "0" (n >> 2),
- "1" (dstp+(n-4)), "2" (srcp+(n-4))
- : "memory" );
- }
- switch (n & 3) {
- case 3: dstp[2] = srcp[2];
- case 2: dstp[1] = srcp[1];
- case 1: dstp[0] = srcp[0];
- break;
- default:
- break;
- }
- } while(0)
- #endif
- #ifndef SDL_revcpy
- extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
- #endif
- #ifdef HAVE_MEMMOVE
- #define SDL_memmove memmove
- #elif defined(HAVE_BCOPY)
- #define SDL_memmove(d, s, n) bcopy((s), (d), (n))
- #else
- #define SDL_memmove(dst, src, len)
- do {
- if ( dst < src ) {
- SDL_memcpy(dst, src, len);
- } else {
- SDL_revcpy(dst, src, len);
- }
- } while(0)
- #endif
- #ifdef HAVE_MEMCMP
- #define SDL_memcmp memcmp
- #else
- extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
- #endif
- #ifdef HAVE_STRLEN
- #define SDL_strlen strlen
- #else
- extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
- #endif
- #ifdef HAVE_STRLCPY
- #define SDL_strlcpy strlcpy
- #else
- extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
- #endif
- #ifdef HAVE_STRLCAT
- #define SDL_strlcat strlcat
- #else
- extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
- #endif
- #ifdef HAVE_STRDUP
- #define SDL_strdup strdup
- #else
- extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
- #endif
- #ifdef HAVE__STRREV
- #define SDL_strrev _strrev
- #else
- extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
- #endif
- #ifdef HAVE__STRUPR
- #define SDL_strupr _strupr
- #else
- extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
- #endif
- #ifdef HAVE__STRLWR
- #define SDL_strlwr _strlwr
- #else
- extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
- #endif
- #ifdef HAVE_STRCHR
- #define SDL_strchr strchr
- #elif defined(HAVE_INDEX)
- #define SDL_strchr index
- #else
- extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
- #endif
- #ifdef HAVE_STRRCHR
- #define SDL_strrchr strrchr
- #elif defined(HAVE_RINDEX)
- #define SDL_strrchr rindex
- #else
- extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
- #endif
- #ifdef HAVE_STRSTR
- #define SDL_strstr strstr
- #else
- extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
- #endif
- #ifdef HAVE_ITOA
- #define SDL_itoa itoa
- #else
- #define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
- #endif
- #ifdef HAVE__LTOA
- #define SDL_ltoa _ltoa
- #else
- extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
- #endif
- #ifdef HAVE__UITOA
- #define SDL_uitoa _uitoa
- #else
- #define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
- #endif
- #ifdef HAVE__ULTOA
- #define SDL_ultoa _ultoa
- #else
- extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
- #endif
- #ifdef HAVE_STRTOL
- #define SDL_strtol strtol
- #else
- extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
- #endif
- #ifdef HAVE_STRTOUL
- #define SDL_strtoul strtoul
- #else
- extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base);
- #endif
- #ifdef SDL_HAS_64BIT_TYPE
- #ifdef HAVE__I64TOA
- #define SDL_lltoa _i64toa
- #else
- extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
- #endif
- #ifdef HAVE__UI64TOA
- #define SDL_ulltoa _ui64toa
- #else
- extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
- #endif
- #ifdef HAVE_STRTOLL
- #define SDL_strtoll strtoll
- #else
- extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
- #endif
- #ifdef HAVE_STRTOULL
- #define SDL_strtoull strtoull
- #else
- extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base);
- #endif
- #endif /* SDL_HAS_64BIT_TYPE */
- #ifdef HAVE_STRTOD
- #define SDL_strtod strtod
- #else
- extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
- #endif
- #ifdef HAVE_ATOI
- #define SDL_atoi atoi
- #else
- #define SDL_atoi(X) SDL_strtol(X, NULL, 0)
- #endif
- #ifdef HAVE_ATOF
- #define SDL_atof atof
- #else
- #define SDL_atof(X) SDL_strtod(X, NULL)
- #endif
- #ifdef HAVE_STRCMP
- #define SDL_strcmp strcmp
- #else
- extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
- #endif
- #ifdef HAVE_STRNCMP
- #define SDL_strncmp strncmp
- #else
- extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
- #endif
- #ifdef HAVE_STRCASECMP
- #define SDL_strcasecmp strcasecmp
- #elif defined(HAVE__STRICMP)
- #define SDL_strcasecmp _stricmp
- #else
- extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
- #endif
- #ifdef HAVE_STRNCASECMP
- #define SDL_strncasecmp strncasecmp
- #elif defined(HAVE__STRNICMP)
- #define SDL_strncasecmp _strnicmp
- #else
- extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen);
- #endif
- #ifdef HAVE_SSCANF
- #define SDL_sscanf sscanf
- #else
- extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
- #endif
- #ifdef HAVE_SNPRINTF
- #define SDL_snprintf snprintf
- #else
- extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
- #endif
- #ifdef HAVE_VSNPRINTF
- #define SDL_vsnprintf vsnprintf
- #else
- extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
- #endif
- /* The SDL implementation of iconv() returns these error codes */
- #define SDL_ICONV_ERROR (size_t)-1
- #define SDL_ICONV_E2BIG (size_t)-2
- #define SDL_ICONV_EILSEQ (size_t)-3
- #define SDL_ICONV_EINVAL (size_t)-4
- #ifdef HAVE_ICONV
- #define SDL_iconv_t iconv_t
- #define SDL_iconv_open iconv_open
- #define SDL_iconv_close iconv_close
- #else
- typedef struct _SDL_iconv_t *SDL_iconv_t;
- extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode);
- extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
- #endif
- extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
- /* This function converts a string between encodings in one pass, returning a
- string that must be freed with SDL_free() or NULL on error.
- */
- extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);
- #define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
- #define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
- #define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
- /* Ends C function definitions when using C++ */
- #ifdef __cplusplus
- }
- #endif
- #include "close_code.h"
- #endif /* _SDL_stdinc_h */