Mercurial > sdl-ios-xcode
diff include/SDL_stdinc.h @ 3946:259aaca0fb0c SDL-1.2
Use system memset/memcpy on Mac OS X, since Apple hand-tunes these for each
processor they ship (and thus, it's likely to beat our code on PowerPC and
Intel and whatever variants or new archs show up later).
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 03 Jun 2007 06:52:06 +0000 |
| parents | 6a62cbdd65f5 |
| children | e85e65aec22f |
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--- a/include/SDL_stdinc.h Tue May 29 12:01:07 2007 +0000 +++ b/include/SDL_stdinc.h Sun Jun 03 06:52:06 2007 +0000 @@ -234,7 +234,10 @@ extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len); #endif -#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; \ @@ -263,7 +266,10 @@ } 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; \ @@ -292,7 +298,10 @@ #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; \