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Only enable SSE/3DNOW optimizations when they have been enabled at compilation. 

Fixes shared build with SSE/3DNOW disabled but MMX and yasm enabled.

Originally committed as revision 17451 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Diego Biurrun 2009-02-19 00:54:59 +00:00
parent 2213f431c7
commit e10252483e
1 changed files with 3 additions and 3 deletions
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6
libavcodec/fft.c
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@ -89,18 +89,18 @@ av_cold int ff_fft_init(FFTContext *s, int nbits, int inverse)
#if HAVE_MMX && HAVE_YASM
has_vectors = mm_support();
if (has_vectors & FF_MM_SSE) {
if (has_vectors & FF_MM_SSE && HAVE_SSE) {
/* SSE for P3/P4/K8 */
s->imdct_calc = ff_imdct_calc_sse;
s->imdct_half = ff_imdct_half_sse;
s->fft_permute = ff_fft_permute_sse;
s->fft_calc = ff_fft_calc_sse;
} else if (has_vectors & FF_MM_3DNOWEXT) {
} else if (has_vectors & FF_MM_3DNOWEXT && HAVE_AMD3DNOWEXT) {
/* 3DNowEx for K7 */
s->imdct_calc = ff_imdct_calc_3dn2;
s->imdct_half = ff_imdct_half_3dn2;
s->fft_calc = ff_fft_calc_3dn2;
} else if (has_vectors & FF_MM_3DNOW) {
} else if (has_vectors & FF_MM_3DNOW && HAVE_AMD3DNOW) {
/* 3DNow! for K6-2/3 */
s->imdct_calc = ff_imdct_calc_3dn;
s->imdct_half = ff_imdct_half_3dn;