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

Thanks to Patrick Baggett for the fix!
2011-10-29 01:03:50 -04:00 · 2011-10-29 01:03:50 -04:00 · e66bcd9efe
commit e66bcd9efe
parent c6f4eaaf06
1 changed files with 1 additions and 1 deletions
--- 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;