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Merged r3037:3038 from branches/SDL-1.2: Mac OS X memcpy/memset selection.

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402325
This commit is contained in:
Ryan C. Gordon 2007-06-03 08:39:23 +00:00
parent 19f18657f6
commit 152b74331d
1 changed files with 12 additions and 3 deletions
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15
include/SDL_stdinc.h
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@ -279,7 +279,10 @@ extern DECLSPEC void *SDLCALL SDL_memset(void *dst, int c, size_t len);
#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
#if defined(__GNUC__) && defined(i386)
/* We can count on memset existing on Mac OS X and being well-tuned. */
#if defined(__MACH__) && defined(__APPLE__)
#define SDL_memset4(dst, val, len) memset(dst, val, (len)*4)
#elif defined(__GNUC__) && defined(i386)
#define SDL_memset4(dst, val, len) \
do { \
int u0, u1, u2; \
@ -308,7 +311,10 @@ do { \
} while(0)
#endif
#if defined(__GNUC__) && defined(i386)
/* 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; \
@ -338,7 +344,10 @@ extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src,
#endif
#endif
#if defined(__GNUC__) && defined(i386)
/* 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; \