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| author | Loren Merritt <lorenm@u.washington.edu> | 2006-08-18 23:53:49 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2006-08-18 23:53:49 +0000 |
| commit | 1e4ecf26f599c894c24aaf9b5918630656c352c2 (patch) | |
| tree | e5c94934edc5384c18ade4771ec87bb3b0c7dce0 /libavcodec/fft.c | |
| parent | 57060f8936e1d28ef328ed7a3999ec478bddc2a6 (diff) | |
| download | ffmpeg-1e4ecf26f599c894c24aaf9b5918630656c352c2.tar.gz | |
ff_fft_calc_3dn/3dn2/sse: convert intrinsics to inline asm.
2.5% faster fft, 0.5% faster vorbis.
Originally committed as revision 6023 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/fft.c')
| -rw-r--r-- | libavcodec/fft.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/libavcodec/fft.c b/libavcodec/fft.c index 6fd87167bd..bc514724c0 100644 --- a/libavcodec/fft.c +++ b/libavcodec/fft.c @@ -58,7 +58,7 @@ 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))) \ +#if defined(HAVE_MMX) \ || (defined(HAVE_ALTIVEC) && !defined(ALTIVEC_USE_REFERENCE_C_CODE)) { int has_vectors = mm_support(); @@ -67,15 +67,12 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse) #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; @@ -83,7 +80,6 @@ int ff_fft_init(FFTContext *s, int nbits, int inverse) s->fft_calc == ff_fft_calc_c) /* SSE for P3 */ s->fft_calc = ff_fft_calc_sse; -#endif #else /* HAVE_MMX */ if (has_vectors & MM_ALTIVEC) s->fft_calc = ff_fft_calc_altivec; |