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added simd capability

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This commit is contained in:
Mark Borgerding
2005-06-24 03:03:31 +00:00
parent 24be1c5850
commit 7f6cbeab2e
10 changed files with 112 additions and 9 deletions
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5
_kiss_fft_guts.h
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@ -133,6 +133,11 @@ void kf_cexp(kiss_fft_cpx * x,double phase) /* returns e ** (j*phase) */
#ifdef FIXED_POINT
x->r = (kiss_fft_scalar) (SAMP_MAX * cos (phase));
x->i = (kiss_fft_scalar) (SAMP_MAX * sin (phase));
#elif defined(USE_SIMD)
float r = cos (phase);
float i = sin (phase);
x->r = _mm_load1_ps(&r);
x->i = _mm_load1_ps(&i);
#else
x->r = (kiss_fft_scalar) cos (phase);
x->i = (kiss_fft_scalar) sin (phase);