Lines Matching refs:N4
51 int N, N2, N4;
67 N4 = N>>2;
70 ALLOC(f2, N4, kiss_fft_cpx);
93 for(;i<N4-((overlap+3)>>2);i++)
101 for(;i<N4;i++)
116 for(i=0;i<N4;i++)
122 t1 = t[N4+i];
143 for(i=0;i<N4;i++)
146 yr = S_MUL(fp->i,t[N4+i]) - S_MUL(fp->r,t[i]);
147 yi = S_MUL(fp->r,t[N4+i]) + S_MUL(fp->i,t[i]);
165 int N, N2, N4;
178 N4 = N>>2;
189 for(i=0;i<N4;i++)
192 yr = S_MUL(*xp2, t[i]) + S_MUL(*xp1, t[N4+i]);
193 yi = S_MUL(*xp1, t[i]) - S_MUL(*xp2, t[N4+i]);
209 /* Loop to (N4+1)>>1 to handle odd N4. When N4 is odd, the
211 for(i=0;i<(N4+1)>>1;i++)
218 t1 = t[N4+i];
227 t0 = t[(N4-i-1)];
