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| author | Loren Merritt <lorenm@u.washington.edu> | 2006-08-10 18:49:47 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2006-08-10 18:49:47 +0000 |
| commit | 60ae06e77e6e654b19529e89f8f067abd9a3d71a (patch) | |
| tree | ddbf2799ddbbf03144375c9a6a4225c732c79bdf /libavcodec/fft.c | |
| parent | ffad4ed154fc5afafbf872a92031749f840a2855 (diff) | |
| download | ffmpeg-streaming-60ae06e77e6e654b19529e89f8f067abd9a3d71a.zip ffmpeg-streaming-60ae06e77e6e654b19529e89f8f067abd9a3d71a.tar.gz | |
r5954 broke fft on cpus with 3dnow but without mm3dnow.h
Originally committed as revision 5974 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/fft.c')
| -rw-r--r-- | libavcodec/fft.c | 56 |
1 files changed, 27 insertions, 29 deletions
diff --git a/libavcodec/fft.c b/libavcodec/fft.c index 3d5c221..6fd8716 100644 --- a/libavcodec/fft.c +++ b/libavcodec/fft.c @@ -58,17 +58,38 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse) s->exptab1 = NULL; /* compute constant table for HAVE_SSE version */ -#if (defined(HAVE_MMX) && (defined(HAVE_BUILTIN_VECTOR) || defined(HAVE_MM3DNOW))) || defined(HAVE_ALTIVEC) +#if (defined(HAVE_MMX) && (defined(HAVE_BUILTIN_VECTOR) || defined(HAVE_MM3DNOW))) \ + || (defined(HAVE_ALTIVEC) && !defined(ALTIVEC_USE_REFERENCE_C_CODE)) { - int has_vectors = 0; + int has_vectors = mm_support(); + if (has_vectors) { #if defined(HAVE_MMX) - has_vectors = mm_support() & (MM_3DNOW | MM_3DNOWEXT | MM_SSE | MM_SSE2); + if (has_vectors & MM_3DNOWEXT) + s->imdct_calc = ff_imdct_calc_3dn2; +#ifdef HAVE_MM3DNOW + if (has_vectors & MM_3DNOWEXT) + /* 3DNowEx for Athlon(XP) */ + s->fft_calc = ff_fft_calc_3dn2; + else if (has_vectors & MM_3DNOW) + /* 3DNow! for K6-2/3 */ + s->fft_calc = ff_fft_calc_3dn; +#endif +#ifdef HAVE_BUILTIN_VECTOR + if (has_vectors & MM_SSE2) + /* SSE for P4/K8 */ + s->fft_calc = ff_fft_calc_sse; + else if ((has_vectors & MM_SSE) && + s->fft_calc == ff_fft_calc_c) + /* SSE for P3 */ + s->fft_calc = ff_fft_calc_sse; #endif -#if defined(HAVE_ALTIVEC) && !defined(ALTIVEC_USE_REFERENCE_C_CODE) - has_vectors = mm_support() & MM_ALTIVEC; +#else /* HAVE_MMX */ + if (has_vectors & MM_ALTIVEC) + s->fft_calc = ff_fft_calc_altivec; #endif - if (has_vectors) { + } + if (s->fft_calc != ff_fft_calc_c) { int np, nblocks, np2, l; FFTComplex *q; @@ -94,29 +115,6 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse) nblocks = nblocks >> 1; } while (nblocks != 0); av_freep(&s->exptab); -#if defined(HAVE_MMX) - if (has_vectors & MM_3DNOWEXT) - s->imdct_calc = ff_imdct_calc_3dn2; -#ifdef HAVE_MM3DNOW - if (has_vectors & MM_3DNOWEXT) - /* 3DNowEx for Athlon(XP) */ - s->fft_calc = ff_fft_calc_3dn2; - else if (has_vectors & MM_3DNOW) - /* 3DNow! for K6-2/3 */ - s->fft_calc = ff_fft_calc_3dn; -#endif -#ifdef HAVE_BUILTIN_VECTOR - if (has_vectors & MM_SSE2) - /* SSE for P4/K8 */ - s->fft_calc = ff_fft_calc_sse; - else if ((has_vectors & MM_SSE) && - s->fft_calc == ff_fft_calc_c) - /* SSE for P3 */ - s->fft_calc = ff_fft_calc_sse; -#endif -#else /* HAVE_MMX */ - s->fft_calc = ff_fft_calc_altivec; -#endif } } #endif |
