Started the process of improving configure support, and merging C types
and library support into a single header. --HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401357
This commit is contained in:
Sam Lantinga
parent
43c632905d
commit
0e9a85e9de
16 changed files with 155 additions and 643 deletions
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@ -20,343 +20,4 @@
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slouken@libsdl.org
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*/
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/* This file contains portable string manipulation functions for SDL */
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#ifndef _SDL_string_h
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#define _SDL_string_h
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#include "SDL_config.h"
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#ifdef HAVE_STDIO_H
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#include <stdio.h> /* For snprintf() and friends */
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "SDL_types.h"
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#include "SDL_stdarg.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef HAVE_MEMSET
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#define SDL_memset memset
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#else
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extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
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#endif
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#if defined(__GNUC__) && defined(i386)
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#define SDL_memset4(dst, val, len) \
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do { \
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int u0, u1, u2; \
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__asm__ __volatile__ ( \
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"cld\n\t" \
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"rep ; stosl\n\t" \
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: "=&D" (u0), "=&a" (u1), "=&c" (u2) \
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: "0" (dst), "1" (val), "2" ((Uint32)(len)) \
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: "memory" ); \
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} while(0)
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#endif
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#ifndef SDL_memset4
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#define SDL_memset4(dst, val, len) \
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do { \
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unsigned _count = (len); \
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unsigned _n = (_count + 3) / 4; \
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Uint32 *_p = (Uint32 *)(dst); \
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Uint32 _val = (val); \
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switch (_count % 4) { \
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case 0: do { *_p++ = _val; \
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case 3: *_p++ = _val; \
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case 2: *_p++ = _val; \
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case 1: *_p++ = _val; \
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} while ( --_n ); \
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} \
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} while(0)
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#endif
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#if defined(__GNUC__) && defined(i386)
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#define SDL_memcpy(dst, src, len) \
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do { \
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int u0, u1, u2; \
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__asm__ __volatile__ ( \
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"cld\n\t" \
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"rep ; movsl\n\t" \
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"testb $2,%b4\n\t" \
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"je 1f\n\t" \
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"movsw\n" \
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"1:\ttestb $1,%b4\n\t" \
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"je 2f\n\t" \
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"movsb\n" \
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"2:" \
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: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
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: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
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: "memory" ); \
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} while(0)
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#endif
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#ifndef SDL_memcpy
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#ifdef HAVE_MEMCPY
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#define SDL_memcpy memcpy
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#else
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extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
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#endif
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#endif
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#if defined(__GNUC__) && defined(i386)
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#define SDL_memcpy4(dst, src, len) \
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do { \
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int ecx, edi, esi; \
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__asm__ __volatile__ ( \
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"cld\n\t" \
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"rep ; movsl" \
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: "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
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: "0" ((unsigned)(len)), "1" (dst), "2" (src) \
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: "memory" ); \
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} while(0)
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#endif
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#ifndef SDL_memcpy4
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#define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
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#endif
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#if defined(__GNUC__) && defined(i386)
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#define SDL_revcpy(dst, src, len) \
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do { \
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int u0, u1, u2; \
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char *dstp = (char *)(dst); \
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char *srcp = (char *)(src); \
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int n = (len); \
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if ( n >= 4 ) { \
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__asm__ __volatile__ ( \
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"std\n\t" \
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"rep ; movsl\n\t" \
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: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
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: "0" (n >> 2), \
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"1" (dstp+(n-4)), "2" (srcp+(n-4)) \
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: "memory" ); \
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} \
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switch (n & 3) { \
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case 3: dstp[2] = srcp[2]; \
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case 2: dstp[1] = srcp[1]; \
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case 1: dstp[0] = srcp[0]; \
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break; \
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default: \
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break; \
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} \
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} while(0)
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#endif
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#ifndef SDL_revcpy
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extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
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#endif
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#ifdef HAVE_MEMMOVE
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#define SDL_memmove memmove
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#else
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#define SDL_memmove(dst, src, len) \
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do { \
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if ( dst < src ) { \
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SDL_memcpy(dst, src, len); \
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} else { \
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SDL_revcpy(dst, src, len); \
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} \
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} while(0)
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#endif
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#ifdef HAVE_MEMCMP
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#define SDL_memcmp memcmp
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#else
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extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
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#endif
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#ifdef HAVE_STRLEN
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#define SDL_strlen strlen
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#else
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extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
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#endif
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#ifdef HAVE_STRCPY
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#define SDL_strcpy strcpy
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#else
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extern DECLSPEC char * SDLCALL SDL_strcpy(char *dst, const char *src);
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#endif
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#ifdef HAVE_STRNCPY
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#define SDL_strncpy strncpy
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#else
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extern DECLSPEC char * SDLCALL SDL_strncpy(char *dst, const char *src, size_t maxlen);
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#endif
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#ifdef HAVE_STRCAT
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#define SDL_strcat strcat
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#else
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#define SDL_strcat(dst, src) (SDL_strcpy(dst+SDL_strlen(dst), src), dst)
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#endif
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#ifdef HAVE_STRNCAT
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#define SDL_strncat strncat
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#else
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#define SDL_strncat(dst, src, n) (SDL_strncpy(dst+SDL_strlen(dst), src, n), dst)
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#endif
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#ifdef HAVE_STRDUP
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#define SDL_strdup strdup
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#else
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extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
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#endif
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#ifdef HAVE__STRREV
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#define SDL_strrev _strrev
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#else
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extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
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#endif
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#ifdef HAVE__STRUPR
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#define SDL_strupr _strupr
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#else
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extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
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#endif
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#ifdef HAVE__STRLWR
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#define SDL_strlwr _strlwr
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#else
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extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
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#endif
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#ifdef HAVE_STRCHR
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#define SDL_strchr strchr
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#else
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extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
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#endif
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#ifdef HAVE_STRRCHR
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#define SDL_strrchr strrchr
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#else
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extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
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#endif
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#ifdef HAVE_STRSTR
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#define SDL_strstr strstr
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#else
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extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
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#endif
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#ifdef HAVE_ITOA
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#define SDL_itoa itoa
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#else
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#define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
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#endif
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#ifdef HAVE__LTOA
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#define SDL_ltoa _ltoa
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#else
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extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
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#endif
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#ifdef HAVE__UITOA
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#define SDL_uitoa _uitoa
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#else
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#define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
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#endif
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#ifdef HAVE__ULTOA
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#define SDL_ultoa _ultoa
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#else
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extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
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#endif
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#ifdef HAVE_STRTOL
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#define SDL_strtol strtol
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#else
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extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
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#endif
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#ifdef SDL_HAS_64BIT_TYPE
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#ifdef HAVE__I64TOA
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#define SDL_lltoa _i64toa
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#else
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extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
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#endif
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#ifdef HAVE__UI64TOA
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#define SDL_ulltoa _ui64toa
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#else
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extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
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#endif
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#ifdef HAVE_STRTOLL
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#define SDL_strtoll strtoll
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#else
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extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
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#endif
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#endif /* SDL_HAS_64BIT_TYPE */
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#ifdef HAVE_STRTOD
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#define SDL_strtod strtod
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#else
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extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
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#endif
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#ifdef HAVE_ATOI
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#define SDL_atoi atoi
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#else
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#define SDL_atoi(X) SDL_strtol(X, NULL, 0)
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#endif
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#ifdef HAVE_ATOF
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#define SDL_atof atof
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#else
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#define SDL_atof(X) SDL_strtod(X, NULL)
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#endif
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#ifdef HAVE_STRCMP
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#define SDL_strcmp strcmp
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#else
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extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
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#endif
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#ifdef HAVE_STRNCMP
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#define SDL_strncmp strncmp
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#else
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extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
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#endif
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#if defined(HAVE_STRICMP) && !defined(HAVE_STRCASECMP)
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#define strcasecmp stricmp
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#define HAVE_STRCASECMP
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#endif
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#ifdef HAVE_STRCASECMP
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#define SDL_strcasecmp strcasecmp
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#else
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extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
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#endif
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#ifdef HAVE_SSCANF
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#define SDL_sscanf sscanf
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#else
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extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
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#endif
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#ifdef HAVE_SNPRINTF
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#define SDL_snprintf snprintf
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#else
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extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
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#endif
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#ifdef HAVE_VSNPRINTF
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#define SDL_vsnprintf vsnprintf
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#else
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extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
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#endif
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* _SDL_string_h */
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#include "SDL_stdinc.h"
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