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polishing SIMD changes

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This commit is contained in:
Mark Borgerding
2005-06-25 04:38:19 +00:00
parent 95fd244f93
commit 4be23bffa4
10 changed files with 75 additions and 69 deletions
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30
_kiss_fft_guts.h
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@ -125,24 +125,26 @@ struct kiss_fft_state{
}while(0)
static
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));
# define KISS_FFT_COS(phase) (kiss_fft_scalar) (SAMP_MAX * cos (phase))
# define KISS_FFT_SIN(phase) (kiss_fft_scalar) (SAMP_MAX * sin (phase))
# define HALF_OF(x) ((x)>>1)
#elif defined(USE_SIMD)
float r = cos (phase);
float i = sin (phase);
x->r = _mm_load1_ps(&r);
x->i = _mm_load1_ps(&i);
# define KISS_FFT_COS(phase) _mm_set1_ps( cos(phase) )
# define KISS_FFT_SIN(phase) _mm_set1_ps( sin(phase) )
# define HALF_OF(x) ((x)*_mm_set1_ps(.5))
#else
x->r = (kiss_fft_scalar) cos (phase);
x->i = (kiss_fft_scalar) sin (phase);
# define KISS_FFT_COS(phase) (kiss_fft_scalar) cos(phase)
# define KISS_FFT_SIN(phase) (kiss_fft_scalar) sin(phase)
# define HALF_OF(x) ((x)*.5)
#endif
}
#define kf_cexp(x,phase) \
do{ \
(x)->r = KISS_FFT_COS(phase);\
(x)->i = KISS_FFT_SIN(phase);\
}while(0)
/* a debugging function */
#define pcpx(c)\