Lines Matching refs:DFT_DATA_LENGTH
32 #define DFT_SPEC_LENGTH (DFT_DATA_LENGTH / 2)
43 { static double orig [DFT_DATA_LENGTH] ; in dft_cmp_float()
44 static double test [DFT_DATA_LENGTH] ; in dft_cmp_float()
47 if (len != DFT_DATA_LENGTH) in dft_cmp_float()
71 if (len != DFT_DATA_LENGTH) in dft_cmp_double()
102 { static double cos_angle [DFT_DATA_LENGTH] = { 0.0 } ; in dft_magnitude()
103 static double sin_angle [DFT_DATA_LENGTH] ; in dft_magnitude()
110 for (n = 0 ; n < DFT_DATA_LENGTH ; n++) in dft_magnitude()
111 { cos_angle [n] = cos (2.0 * M_PI * n / DFT_DATA_LENGTH) ; in dft_magnitude()
112 sin_angle [n] = -1.0 * sin (2.0 * M_PI * n / DFT_DATA_LENGTH) ; in dft_magnitude()
120 for (n = 0 ; n < DFT_DATA_LENGTH ; n++) in dft_magnitude()
121 { real_part += data [n] * cos_angle [(k * n) % DFT_DATA_LENGTH] ; in dft_magnitude()
122 imag_part += data [n] * sin_angle [(k * n) % DFT_DATA_LENGTH] ; in dft_magnitude()