Lines Matching refs:k
70 int k,ncfft; in kiss_fftr() local
105 for ( k=1;k <= ncfft/2 ; ++k ) { in kiss_fftr()
106 fpk = st->tmpbuf[k]; in kiss_fftr()
107 fpnk.r = st->tmpbuf[ncfft-k].r; in kiss_fftr()
108 fpnk.i = - st->tmpbuf[ncfft-k].i; in kiss_fftr()
114 C_MUL( tw , f2k , st->super_twiddles[k-1]); in kiss_fftr()
116 freqdata[k].r = HALF_OF(f1k.r + tw.r); in kiss_fftr()
117 freqdata[k].i = HALF_OF(f1k.i + tw.i); in kiss_fftr()
118 freqdata[ncfft-k].r = HALF_OF(f1k.r - tw.r); in kiss_fftr()
119 freqdata[ncfft-k].i = HALF_OF(tw.i - f1k.i); in kiss_fftr()
126 int k, ncfft; in kiss_fftri() local
139 for (k = 1; k <= ncfft / 2; ++k) { in kiss_fftri()
141 fk = freqdata[k]; in kiss_fftri()
142 fnkc.r = freqdata[ncfft - k].r; in kiss_fftri()
143 fnkc.i = -freqdata[ncfft - k].i; in kiss_fftri()
149 C_MUL (fok, tmp, st->super_twiddles[k-1]); in kiss_fftri()
150 C_ADD (st->tmpbuf[k], fek, fok); in kiss_fftri()
151 C_SUB (st->tmpbuf[ncfft - k], fek, fok); in kiss_fftri()
153 st->tmpbuf[ncfft - k].i *= _mm_set1_ps(-1.0); in kiss_fftri()
155 st->tmpbuf[ncfft - k].i *= -1; in kiss_fftri()