33         int m  in kf_bfly2()  argument
39     Fout2 = Fout + m;  in kf_bfly2()
49     }while (--m);  in kf_bfly2()
56         const size_t m  in kf_bfly4()  argument
61     size_t k=m;  in kf_bfly4()
62     const size_t m2=2*m;  in kf_bfly4()
63     const size_t m3=3*m;  in kf_bfly4()
69         C_FIXDIV(*Fout,4); C_FIXDIV(Fout[m],4); C_FIXDIV(Fout[m2],4); C_FIXDIV(Fout[m3],4);  in kf_bfly4()
71         C_MUL(scratch[0],Fout[m] , *tw1 );  in kf_bfly4()
86             Fout[m].r = scratch[5].r - scratch[4].i;  in kf_bfly4()
87             Fout[m].i = scratch[5].i + scratch[4].r;  in kf_bfly4()
91             Fout[m].r = scratch[5].r + scratch[4].i;  in kf_bfly4()
92             Fout[m].i = scratch[5].i - scratch[4].r;  in kf_bfly4()
104          size_t m  in kf_bfly3()  argument
107      size_t k=m;  in kf_bfly3()
108      const size_t m2 = 2*m;  in kf_bfly3()
112      epi3 = st->twiddles[fstride*m];  in kf_bfly3()
117          C_FIXDIV(*Fout,3); C_FIXDIV(Fout[m],3); C_FIXDIV(Fout[m2],3);  in kf_bfly3()
119          C_MUL(scratch[1],Fout[m] , *tw1);  in kf_bfly3()
127          Fout[m].r = Fout->r - HALF_OF(scratch[3].r);  in kf_bfly3()
128          Fout[m].i = Fout->i - HALF_OF(scratch[3].i);  in kf_bfly3()
134          Fout[m2].r = Fout[m].r + scratch[0].i;  in kf_bfly3()
135          Fout[m2].i = Fout[m].i - scratch[0].r;  in kf_bfly3()
137          Fout[m].r -= scratch[0].i;  in kf_bfly3()
138          Fout[m].i += scratch[0].r;  in kf_bfly3()
148         int m  in kf_bfly5()  argument
157     ya = twiddles[fstride*(size_t)m];  in kf_bfly5()
158     yb = twiddles[fstride*2*(size_t)m];  in kf_bfly5()
161     Fout1=Fout0+m;  in kf_bfly5()
162     Fout2=Fout0+2*m;  in kf_bfly5()
163     Fout3=Fout0+3*m;  in kf_bfly5()
164     Fout4=Fout0+4*m;  in kf_bfly5()
167     for ( u=0; u<(size_t)m; ++u ) {  in kf_bfly5()
210         int m,  in kf_bfly_generic()  argument
221     for ( u=0; u<m; ++u ) {  in kf_bfly_generic()
226             k += m;  in kf_bfly_generic()
239             k += m;  in kf_bfly_generic()
257     const int m=*factors++; /* stage's fft length/p */  in kf_work()  local
258     const kiss_fft_cpx * Fout_end = Fout + p*m;  in kf_work()
270             kf_work( Fout +k*m, f+ fstride*in_stride*k,fstride*p,in_stride,factors,st);  in kf_work()
274             case 2: kf_bfly2(Fout,fstride,st,m); break;  in kf_work()
275             case 3: kf_bfly3(Fout,fstride,st,m); break;   in kf_work()
276             case 4: kf_bfly4(Fout,fstride,st,m); break;  in kf_work()
277             case 5: kf_bfly5(Fout,fstride,st,m); break;   in kf_work()
278             default: kf_bfly_generic(Fout,fstride,st,m,p); break;  in kf_work()
284     if (m==1) {  in kf_work()
297         }while( (Fout += m) != Fout_end );  in kf_work()
304         case 2: kf_bfly2(Fout,fstride,st,m); break;  in kf_work()
305         case 3: kf_bfly3(Fout,fstride,st,(size_t)m); break;   in kf_work()
306         case 4: kf_bfly4(Fout,fstride,st,(size_t)m); break;  in kf_work()
307         case 5: kf_bfly5(Fout,fstride,st,m); break;   in kf_work()
308         default: kf_bfly_generic(Fout,fstride,st,m,p); break;  in kf_work()
407         int m=n;  in kiss_fft_next_fast_size()  local
408         while ( (m%2) == 0 ) m/=2;  in kiss_fft_next_fast_size()
409         while ( (m%3) == 0 ) m/=3;  in kiss_fft_next_fast_size()
410         while ( (m%5) == 0 ) m/=5;  in kiss_fft_next_fast_size()
411         if (m<=1)  in kiss_fft_next_fast_size()