Subversion Repositories shark

Rev

Rev 3 | 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
};