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 13:55:06 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 -hc2real 10 */
27
 
28
/*
29
 * This function contains 34 FP additions, 14 FP multiplications,
30
 * (or, 26 additions, 6 multiplications, 8 fused multiply/add),
31
 * 20 stack variables, and 20 memory accesses
32
 */
33
static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
34
static const fftw_real K1_902113032 = FFTW_KONST(+1.902113032590307144232878666758764286811397268);
35
static const fftw_real K1_175570504 = FFTW_KONST(+1.175570504584946258337411909278145537195304875);
36
static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
37
static const fftw_real K1_118033988 = FFTW_KONST(+1.118033988749894848204586834365638117720309180);
38
 
39
/*
40
 * Generator Id's :
107 pj 41
 * $Id: fcr_10.c,v 1.2 2003-03-24 11:14:55 pj Exp $
42
 * $Id: fcr_10.c,v 1.2 2003-03-24 11:14:55 pj Exp $
43
 * $Id: fcr_10.c,v 1.2 2003-03-24 11:14:55 pj Exp $
2 pj 44
 */
45
 
46
void fftw_hc2real_10(const fftw_real *real_input, const fftw_real *imag_input, fftw_real *output, int real_istride, int imag_istride, int ostride)
47
{
48
     fftw_real tmp3;
49
     fftw_real tmp11;
50
     fftw_real tmp23;
51
     fftw_real tmp31;
52
     fftw_real tmp20;
53
     fftw_real tmp30;
54
     fftw_real tmp10;
55
     fftw_real tmp28;
56
     fftw_real tmp14;
57
     fftw_real tmp16;
58
     fftw_real tmp18;
59
     fftw_real tmp19;
60
     ASSERT_ALIGNED_DOUBLE();
61
     {
62
          fftw_real tmp1;
63
          fftw_real tmp2;
64
          fftw_real tmp21;
65
          fftw_real tmp22;
66
          ASSERT_ALIGNED_DOUBLE();
67
          tmp1 = real_input[0];
68
          tmp2 = real_input[5 * real_istride];
69
          tmp3 = tmp1 - tmp2;
70
          tmp11 = tmp1 + tmp2;
71
          tmp21 = imag_input[4 * imag_istride];
72
          tmp22 = imag_input[imag_istride];
73
          tmp23 = tmp21 - tmp22;
74
          tmp31 = tmp21 + tmp22;
75
     }
76
     tmp18 = imag_input[2 * imag_istride];
77
     tmp19 = imag_input[3 * imag_istride];
78
     tmp20 = tmp18 - tmp19;
79
     tmp30 = tmp18 + tmp19;
80
     {
81
          fftw_real tmp6;
82
          fftw_real tmp12;
83
          fftw_real tmp9;
84
          fftw_real tmp13;
85
          ASSERT_ALIGNED_DOUBLE();
86
          {
87
               fftw_real tmp4;
88
               fftw_real tmp5;
89
               fftw_real tmp7;
90
               fftw_real tmp8;
91
               ASSERT_ALIGNED_DOUBLE();
92
               tmp4 = real_input[2 * real_istride];
93
               tmp5 = real_input[3 * real_istride];
94
               tmp6 = tmp4 - tmp5;
95
               tmp12 = tmp4 + tmp5;
96
               tmp7 = real_input[4 * real_istride];
97
               tmp8 = real_input[real_istride];
98
               tmp9 = tmp7 - tmp8;
99
               tmp13 = tmp7 + tmp8;
100
          }
101
          tmp10 = tmp6 + tmp9;
102
          tmp28 = K1_118033988 * (tmp6 - tmp9);
103
          tmp14 = tmp12 + tmp13;
104
          tmp16 = K1_118033988 * (tmp12 - tmp13);
105
     }
106
     output[5 * ostride] = tmp3 + (K2_000000000 * tmp10);
107
     {
108
          fftw_real tmp32;
109
          fftw_real tmp34;
110
          fftw_real tmp29;
111
          fftw_real tmp33;
112
          fftw_real tmp27;
113
          ASSERT_ALIGNED_DOUBLE();
114
          tmp32 = (K1_175570504 * tmp30) - (K1_902113032 * tmp31);
115
          tmp34 = (K1_902113032 * tmp30) + (K1_175570504 * tmp31);
116
          tmp27 = tmp3 - (K500000000 * tmp10);
117
          tmp29 = tmp27 - tmp28;
118
          tmp33 = tmp28 + tmp27;
119
          output[7 * ostride] = tmp29 - tmp32;
120
          output[3 * ostride] = tmp29 + tmp32;
121
          output[ostride] = tmp33 - tmp34;
122
          output[9 * ostride] = tmp33 + tmp34;
123
     }
124
     output[0] = tmp11 + (K2_000000000 * tmp14);
125
     {
126
          fftw_real tmp24;
127
          fftw_real tmp26;
128
          fftw_real tmp17;
129
          fftw_real tmp25;
130
          fftw_real tmp15;
131
          ASSERT_ALIGNED_DOUBLE();
132
          tmp24 = (K1_175570504 * tmp20) - (K1_902113032 * tmp23);
133
          tmp26 = (K1_902113032 * tmp20) + (K1_175570504 * tmp23);
134
          tmp15 = tmp11 - (K500000000 * tmp14);
135
          tmp17 = tmp15 - tmp16;
136
          tmp25 = tmp16 + tmp15;
137
          output[2 * ostride] = tmp17 - tmp24;
138
          output[8 * ostride] = tmp17 + tmp24;
139
          output[6 * ostride] = tmp25 - tmp26;
140
          output[4 * ostride] = tmp25 + tmp26;
141
     }
142
}
143
 
144
fftw_codelet_desc fftw_hc2real_10_desc =
145
{
146
     "fftw_hc2real_10",
147
     (void (*)()) fftw_hc2real_10,
148
     10,
149
     FFTW_BACKWARD,
150
     FFTW_HC2REAL,
151
     235,
152
     0,
153
     (const int *) 0,
154
};