SDL_memcpyMMX(): Make sure srcskip and dstskip are 8-byte aligned.

Thanks to Patrick Baggett for the fix!

SDL_memcpyMMX(): Make sure srcskip and dstskip are 8-byte aligned.
Thanks to Patrick Baggett for the fix!
e66bcd9e · Ryan C. Gordon · c6f4eaaf · e66bcd9e
Commit e66bcd9e authored Oct 29, 2011 by Ryan C. Gordon
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SDL_blit_copy.c src/video/SDL_blit_copy.c +1 -1

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--- a/src/video/SDL_blit_copy.c
+++ b/src/video/SDL_blit_copy.c
@@ -127,7 +127,7 @@ SDL_BlitCopy(SDL_BlitInfo * info)
 #endif
 #ifdef __MMX__
-    if (SDL_HasMMX()) {
+    if (SDL_HasMMX() && !(srcskip & 7) && !(dstskip & 7)) {
        while (h--) {
            SDL_memcpyMMX(dst, src, w);
            src += srcskip;