25         int m  in kf_bfly2()  argument
31     Fout2 = Fout + m;  in kf_bfly2()
41     }while (--m);  in kf_bfly2()
48         const size_t m  in kf_bfly4()  argument
53     size_t k=m;  in kf_bfly4()
54     const size_t m2=2*m;  in kf_bfly4()
55     const size_t m3=3*m;  in kf_bfly4()
61         C_FIXDIV(*Fout,4); C_FIXDIV(Fout[m],4); C_FIXDIV(Fout[m2],4); C_FIXDIV(Fout[m3],4);  in kf_bfly4()
63         C_MUL(scratch[0],Fout[m] , *tw1 );  in kf_bfly4()
78             Fout[m].r = scratch[5].r - scratch[4].i;  in kf_bfly4()
79             Fout[m].i = scratch[5].i + scratch[4].r;  in kf_bfly4()
83             Fout[m].r = scratch[5].r + scratch[4].i;  in kf_bfly4()
84             Fout[m].i = scratch[5].i - scratch[4].r;  in kf_bfly4()
96          size_t m  in kf_bfly3()  argument
99      size_t k=m;  in kf_bfly3()
100      const size_t m2 = 2*m;  in kf_bfly3()
104      epi3 = st->twiddles[fstride*m];  in kf_bfly3()
109          C_FIXDIV(*Fout,3); C_FIXDIV(Fout[m],3); C_FIXDIV(Fout[m2],3);  in kf_bfly3()
111          C_MUL(scratch[1],Fout[m] , *tw1);  in kf_bfly3()
119          Fout[m].r = Fout->r - HALF_OF(scratch[3].r);  in kf_bfly3()
120          Fout[m].i = Fout->i - HALF_OF(scratch[3].i);  in kf_bfly3()
126          Fout[m2].r = Fout[m].r + scratch[0].i;  in kf_bfly3()
127          Fout[m2].i = Fout[m].i - scratch[0].r;  in kf_bfly3()
129          Fout[m].r -= scratch[0].i;  in kf_bfly3()
130          Fout[m].i += scratch[0].r;  in kf_bfly3()
140         int m  in kf_bfly5()  argument
149     ya = twiddles[fstride*(size_t)m];  in kf_bfly5()
150     yb = twiddles[fstride*2*(size_t)m];  in kf_bfly5()
153     Fout1=Fout0+m;  in kf_bfly5()
154     Fout2=Fout0+2*m;  in kf_bfly5()
155     Fout3=Fout0+3*m;  in kf_bfly5()
156     Fout4=Fout0+4*m;  in kf_bfly5()
159     for ( u=0; u<(size_t)m; ++u ) {  in kf_bfly5()
202         int m,  in kf_bfly_generic()  argument
213     for ( u=0; u<m; ++u ) {  in kf_bfly_generic()
218             k += m;  in kf_bfly_generic()
231             k += m;  in kf_bfly_generic()
249     const int m=*factors++; /* stage's fft length/p */  in kf_work()  local
250     const kiss_fft_cpx * Fout_end = Fout + p*m;  in kf_work()
262             kf_work( Fout +k*m, f+ fstride*in_stride*k,fstride*p,in_stride,factors,st);  in kf_work()
266             case 2: kf_bfly2(Fout,fstride,st,m); break;  in kf_work()
267             case 3: kf_bfly3(Fout,fstride,st,m); break;   in kf_work()
268             case 4: kf_bfly4(Fout,fstride,st,m); break;  in kf_work()
269             case 5: kf_bfly5(Fout,fstride,st,m); break;   in kf_work()
270             default: kf_bfly_generic(Fout,fstride,st,m,p); break;  in kf_work()
276     if (m==1) {  in kf_work()
289         }while( (Fout += m) != Fout_end );  in kf_work()
296         case 2: kf_bfly2(Fout,fstride,st,m); break;  in kf_work()
297         case 3: kf_bfly3(Fout,fstride,st,(size_t)m); break;   in kf_work()
298         case 4: kf_bfly4(Fout,fstride,st,(size_t)m); break;  in kf_work()
299         case 5: kf_bfly5(Fout,fstride,st,m); break;   in kf_work()
300         default: kf_bfly_generic(Fout,fstride,st,m,p); break;  in kf_work()
399         int m=n;  in kiss_fft_next_fast_size()  local
400         while ( (m%2) == 0 ) m/=2;  in kiss_fft_next_fast_size()
401         while ( (m%3) == 0 ) m/=3;  in kiss_fft_next_fast_size()
402         while ( (m%5) == 0 ) m/=5;  in kiss_fft_next_fast_size()
403         if (m<=1)  in kiss_fft_next_fast_size()