Lines Matching refs:n4
320 int n4, n2, n34; in fft_calc_c() local
407 n4 = 4; in fft_calc_c()
410 n2 = 2*n4; in fft_calc_c()
411 n34 = 3*n4; in fft_calc_c()
429 tmpz[n34].re = tmpz[n4].re - tmp2; in fft_calc_c()
430 tmpz[ n4].re = tmpz[n4].re + tmp2; in fft_calc_c()
431 tmpz[n34].im = tmpz[n4].im + tmp1; in fft_calc_c()
432 tmpz[ n4].im = tmpz[n4].im - tmp1; in fft_calc_c()
434 for (i=1; i<n4; i++){ in fft_calc_c()
459 tmpz[n34+i].re = tmpz[n4+i].re - tmp2; in fft_calc_c()
460 tmpz[ n4+i].re = tmpz[n4+i].re + tmp2; in fft_calc_c()
461 tmpz[n34+i].im = tmpz[n4+i].im + tmp1; in fft_calc_c()
462 tmpz[ n4+i].im = tmpz[n4+i].im - tmp1; in fft_calc_c()
469 n4 <<= 1; in fft_calc_c()
540 #define DECL_FFT(n,n2,n4)\ in PASS() argument
544 fft##n4(z+n4*2);\ in PASS()
545 fft##n4(z+n4*3);\ in PASS()
546 pass(z,FFT_NAME(ff_cos_##n),n4/2);\ in PASS()