Rev 3 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* |
| 2 | * Copyright (c) 1997-1999 Massachusetts Institute of Technology |
||
| 3 | * |
||
| 4 | * This program is free software; you can redistribute it and/or modify |
||
| 5 | * it under the terms of the GNU General Public License as published by |
||
| 6 | * the Free Software Foundation; either version 2 of the License, or |
||
| 7 | * (at your option) any later version. |
||
| 8 | * |
||
| 9 | * This program is distributed in the hope that it will be useful, |
||
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||
| 12 | * GNU General Public License for more details. |
||
| 13 | * |
||
| 14 | * You should have received a copy of the GNU General Public License |
||
| 15 | * along with this program; if not, write to the Free Software |
||
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||
| 17 | * |
||
| 18 | */ |
||
| 19 | |||
| 20 | /* This file was automatically generated --- DO NOT EDIT */ |
||
| 21 | /* Generated on Tue May 18 13:54:42 EDT 1999 */ |
||
| 22 | |||
| 107 | pj | 23 | #include <fftw-int.h> |
| 24 | #include <fftw.h> |
||
| 2 | pj | 25 | |
| 26 | /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 2 */ |
||
| 27 | |||
| 28 | /* |
||
| 29 | * This function contains 4 FP additions, 0 FP multiplications, |
||
| 30 | * (or, 4 additions, 0 multiplications, 0 fused multiply/add), |
||
| 31 | * 4 stack variables, and 8 memory accesses |
||
| 32 | */ |
||
| 33 | |||
| 34 | /* |
||
| 35 | * Generator Id's : |
||
| 107 | pj | 36 | * $Id: fni_2.c,v 1.2 2003-03-24 11:14:51 pj Exp $ |
| 37 | * $Id: fni_2.c,v 1.2 2003-03-24 11:14:51 pj Exp $ |
||
| 38 | * $Id: fni_2.c,v 1.2 2003-03-24 11:14:51 pj Exp $ |
||
| 2 | pj | 39 | */ |
| 40 | |||
| 41 | void fftwi_no_twiddle_2(const fftw_complex *input, fftw_complex *output, int istride, int ostride) |
||
| 42 | { |
||
| 43 | fftw_real tmp1; |
||
| 44 | fftw_real tmp2; |
||
| 45 | fftw_real tmp3; |
||
| 46 | fftw_real tmp4; |
||
| 47 | ASSERT_ALIGNED_DOUBLE(); |
||
| 48 | tmp1 = c_re(input[0]); |
||
| 49 | tmp2 = c_re(input[istride]); |
||
| 50 | c_re(output[ostride]) = tmp1 - tmp2; |
||
| 51 | c_re(output[0]) = tmp1 + tmp2; |
||
| 52 | tmp3 = c_im(input[0]); |
||
| 53 | tmp4 = c_im(input[istride]); |
||
| 54 | c_im(output[ostride]) = tmp3 - tmp4; |
||
| 55 | c_im(output[0]) = tmp3 + tmp4; |
||
| 56 | } |
||
| 57 | |||
| 58 | fftw_codelet_desc fftwi_no_twiddle_2_desc = |
||
| 59 | { |
||
| 60 | "fftwi_no_twiddle_2", |
||
| 61 | (void (*)()) fftwi_no_twiddle_2, |
||
| 62 | 2, |
||
| 63 | FFTW_BACKWARD, |
||
| 64 | FFTW_NOTW, |
||
| 65 | 56, |
||
| 66 | 0, |
||
| 67 | (const int *) 0, |
||
| 68 | }; |