Mercurial > sdl-ios-xcode
diff src/video/SDL_blit.c @ 880:9ef41050100c
Date: Tue, 30 Mar 2004 21:26:47 -0600
From: Tyler Montbriand
Subject: [SDL] Opteron MMX patches for SDL_blit.c and SDL_blit_A.c
The inline MMX assembly in SDL_blit.c and SDL_blit_A.c compiles and runs fine
unmodified under AMD Opteron. The inline assembly in SDL_yuv_mmx.c and
SDL_blit_N.c unfortunately isn't directly compatible.
I've included diffs from SDL_blit.c and SDL_blit_A.c that allow the MMX
assembly to be compiled when USE_ASMBLIT, __x86_64__, and __GNUC__ are all
defined. All I had to modify was typedefs, the inline assembly itself wasn't
touched.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 11 Apr 2004 19:47:28 +0000 |
| parents | b8d311d90021 |
| children | 9301b429c99f |
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--- a/src/video/SDL_blit.c Thu Apr 08 21:13:14 2004 +0000 +++ b/src/video/SDL_blit.c Sun Apr 11 19:47:28 2004 +0000 @@ -37,7 +37,11 @@ #include "SDL_pixels_c.h" #include "SDL_memops.h" -#if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) +#if (defined(i386) || defined(__x86_64__)) && defined(__GNUC__) && defined(USE_ASMBLIT) +#define MMX_ASMBLIT +#endif + +#if defined(MMX_ASMBLIT) #include "SDL_cpuinfo.h" #include "mmx.h" #endif @@ -111,7 +115,7 @@ return(okay ? 0 : -1); } -#if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) +#ifdef MMX_ASMBLIT void SDL_memcpyMMX(char* to,char* from,int len) { int i; @@ -165,7 +169,7 @@ dst = info->d_pixels; srcskip = w+info->s_skip; dstskip = w+info->d_skip; -#if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) +#ifdef MMX_ASMBLIT if(SDL_HasSSE()) { while ( h-- ) {