Lines Matching refs:order
74 * Compute an FFT for a complex signal of length of 2^order,
75 * where 0 <= order <= 15.
84 * N = 2^order
88 * 2^order; must be aligned on a 32 byte boundary.
93 * pDst - pointer to the complex-valued output vector, of length 2^order;
111 int order;
127 * Compute the RFFT using a complex FFT of one less order, so set
128 * order to be the order of the complex FFT.
130 order = fastlog2(spec->N) - 1;
137 if (order > 3) {
145 if ((order & 2) != 0) {
153 * Odd order uses a radix 8 first stage; even order, a radix 4
156 if (order & 1) {
184 } else if (order == 3) {
191 } else if (order == 2) {
196 } else if (order == 1) {
200 /* Handle complex order 0 specially */