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Merged r2913:2914 from SDL-1.2 branch into trunk: alpha blit GCC MMX asm fix.

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402237
This commit is contained in:
Ryan C. Gordon 2006-11-21 23:24:33 +00:00
parent 46da5465d6
commit 65dbe42d4b
1 changed files with 2 additions and 1 deletions
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3
src/video/SDL_blit_A.c
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@ -1632,6 +1632,7 @@ BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
int dstskip = info->d_skip >> 2;
SDL_PixelFormat *sf = info->src;
Uint32 amask = sf->Amask;
Uint32 ashift = sf->Ashift;
__asm__(
/* make mm6 all zeros. */
@ -1649,7 +1650,7 @@ BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
"pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */
/* get alpha channel shift */
"movd %1, %%mm5\n\t" /* Ashift -> mm5 */
: /* nothing */ : "m"(sf->Amask), "m"(sf->Ashift));
: /* nothing */ : "m"(amask), "m"(ashift));
while (height--) {