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swscale: Provide the right alignment for external mmx asm

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This reverts parts of e0c6cce447. There is external mmx asm that
requires this alignment.

This fixes crashes when using swscale in builds with external mmx,
without inline assembly.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2012-09-09 01:43:53 +03:00
parent e0c6cce447
commit 75c37c5ace
1 changed files with 4 additions and 2 deletions
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6
libswscale/utils.c
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@@ -1050,7 +1050,8 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
} else
#endif /* HAVE_MMXEXT_INLINE */
{
const int filterAlign = INLINE_MMX(cpu_flags) ? 4 :
const int filterAlign =
(HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 4 :
(HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) ? 8 :
1;
@@ -1073,7 +1074,8 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
/* precalculate vertical scaler filter coefficients */
{
const int filterAlign = INLINE_MMX(cpu_flags) ? 2 :
const int filterAlign =
(HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 2 :
(HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) ? 8 :
1;