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This commit is contained in:
Mark Borgerding
2005-10-07 12:29:36 +00:00
parent f492f40cb7
commit 18d0ad1604
6 changed files with 43 additions and 40 deletions
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15
_kiss_fft_guts.h
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@ -44,16 +44,15 @@ struct kiss_fft_state{
#ifdef FIXED_POINT
#if (FIXED_POINT==32)
# define FRACBITS 31
# define SAMPPROD long long
#define SAMP_MAX LONG_MAX
#define SAMP_MIN LONG_MIN
# define SAMPPROD int64_t
#define SAMP_MAX 2147483647
#else
# define FRACBITS 15
# define SAMPPROD long
#define SAMP_MAX SHRT_MAX
#define SAMP_MIN SHRT_MIN
# define SAMPPROD int32_t
#define SAMP_MAX 32767
#endif
#define SAMP_MIN -SAMP_MAX
#if defined(CHECK_OVERFLOW)
# define CHECK_OVERFLOW_OP(a,op,b) \
@ -126,8 +125,8 @@ struct kiss_fft_state{
#ifdef FIXED_POINT
# 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 KISS_FFT_COS(phase) floor(.5+SAMP_MAX * cos (phase))
# define KISS_FFT_SIN(phase) floor(.5+SAMP_MAX * sin (phase))
# define HALF_OF(x) ((x)>>1)
#elif defined(USE_SIMD)
# define KISS_FFT_COS(phase) _mm_set1_ps( cos(phase) )