1 /*
2 * Copyright (c) 1997-1999, 2003 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 Mon Mar 24 02:05:57 EST 2003 */
22
23 #include "fftw-int.h"
24 #include "fftw.h"
25
26 /* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 11 */
27
28 /*
29 * This function contains 60 FP additions, 50 FP multiplications,
30 * (or, 60 additions, 50 multiplications, 0 fused multiply/add),
31 * 17 stack variables, and 22 memory accesses
32 */
33 static const fftw_real K654860733 =
34 FFTW_KONST(+0.654860733945285064056925072466293553183791199);
35 static const fftw_real K142314838 =
36 FFTW_KONST(+0.142314838273285140443792668616369668791051361);
37 static const fftw_real K959492973 =
38 FFTW_KONST(+0.959492973614497389890368057066327699062454848);
39 static const fftw_real K415415013 =
40 FFTW_KONST(+0.415415013001886425529274149229623203524004910);
41 static const fftw_real K841253532 =
42 FFTW_KONST(+0.841253532831181168861811648919367717513292498);
43 static const fftw_real K989821441 =
44 FFTW_KONST(+0.989821441880932732376092037776718787376519372);
45 static const fftw_real K909631995 =
46 FFTW_KONST(+0.909631995354518371411715383079028460060241051);
47 static const fftw_real K755749574 =
48 FFTW_KONST(+0.755749574354258283774035843972344420179717445);
49 static const fftw_real K540640817 =
50 FFTW_KONST(+0.540640817455597582107635954318691695431770608);
51 static const fftw_real K281732556 =
52 FFTW_KONST(+0.281732556841429697711417915346616899035777899);
53
54 /*
55 * Generator Id's :
56 * $Id: exprdag.ml,v 1.43 2003/03/16 23:43:46 stevenj Exp $
57 * $Id: fft.ml,v 1.44 2003/03/16 23:43:46 stevenj Exp $
58 * $Id: to_c.ml,v 1.26 2003/03/16 23:43:46 stevenj Exp $
59 */
60
fftw_real2hc_11(const fftw_real * input,fftw_real * real_output,fftw_real * imag_output,int istride,int real_ostride,int imag_ostride)61 void fftw_real2hc_11(const fftw_real *input, fftw_real *real_output,
62 fftw_real *imag_output, int istride, int real_ostride,
63 int imag_ostride)
64 {
65 fftw_real tmp1;
66 fftw_real tmp4;
67 fftw_real tmp20;
68 fftw_real tmp16;
69 fftw_real tmp21;
70 fftw_real tmp13;
71 fftw_real tmp17;
72 fftw_real tmp10;
73 fftw_real tmp19;
74 fftw_real tmp7;
75 fftw_real tmp18;
76 fftw_real tmp11;
77 fftw_real tmp12;
78 ASSERT_ALIGNED_DOUBLE;
79 tmp1 = input[0];
80 {
81 fftw_real tmp2;
82 fftw_real tmp3;
83 fftw_real tmp14;
84 fftw_real tmp15;
85 ASSERT_ALIGNED_DOUBLE;
86 tmp2 = input[5 * istride];
87 tmp3 = input[6 * istride];
88 tmp4 = tmp2 + tmp3;
89 tmp20 = tmp3 - tmp2;
90 tmp14 = input[2 * istride];
91 tmp15 = input[9 * istride];
92 tmp16 = tmp14 + tmp15;
93 tmp21 = tmp15 - tmp14;
94 }
95 tmp11 = input[4 * istride];
96 tmp12 = input[7 * istride];
97 tmp13 = tmp11 + tmp12;
98 tmp17 = tmp12 - tmp11;
99 {
100 fftw_real tmp8;
101 fftw_real tmp9;
102 fftw_real tmp5;
103 fftw_real tmp6;
104 ASSERT_ALIGNED_DOUBLE;
105 tmp8 = input[istride];
106 tmp9 = input[10 * istride];
107 tmp10 = tmp8 + tmp9;
108 tmp19 = tmp9 - tmp8;
109 tmp5 = input[3 * istride];
110 tmp6 = input[8 * istride];
111 tmp7 = tmp5 + tmp6;
112 tmp18 = tmp6 - tmp5;
113 }
114 imag_output[4 * imag_ostride] =
115 (K281732556 * tmp17) + (K540640817 * tmp18) +
116 (K755749574 * tmp19) - (K909631995 * tmp20) -
117 (K989821441 * tmp21);
118 imag_output[imag_ostride] =
119 (K909631995 * tmp21) + (K755749574 * tmp17) +
120 (K281732556 * tmp20) + (K989821441 * tmp18) +
121 (K540640817 * tmp19);
122 imag_output[5 * imag_ostride] =
123 (K989821441 * tmp20) + (K755749574 * tmp18) +
124 (K281732556 * tmp19) - (K909631995 * tmp17) -
125 (K540640817 * tmp21);
126 imag_output[2 * imag_ostride] =
127 (K755749574 * tmp21) + (K909631995 * tmp19) -
128 (K281732556 * tmp18) - (K540640817 * tmp20) -
129 (K989821441 * tmp17);
130 imag_output[3 * imag_ostride] =
131 (K540640817 * tmp17) + (K755749574 * tmp20) +
132 (K989821441 * tmp19) - (K909631995 * tmp18) -
133 (K281732556 * tmp21);
134 real_output[2 * real_ostride] =
135 tmp1 + (K841253532 * tmp4) + (K415415013 * tmp10) -
136 (K959492973 * tmp7) - (K142314838 * tmp13) - (K654860733 * tmp16);
137 real_output[4 * real_ostride] =
138 tmp1 + (K415415013 * tmp4) + (K841253532 * tmp7) -
139 (K654860733 * tmp10) - (K959492973 * tmp13) -
140 (K142314838 * tmp16);
141 real_output[5 * real_ostride] =
142 tmp1 + (K841253532 * tmp16) + (K415415013 * tmp13) -
143 (K959492973 * tmp10) - (K654860733 * tmp7) - (K142314838 * tmp4);
144 real_output[real_ostride] =
145 tmp1 + (K415415013 * tmp16) + (K841253532 * tmp10) -
146 (K142314838 * tmp7) - (K959492973 * tmp4) - (K654860733 * tmp13);
147 real_output[3 * real_ostride] =
148 tmp1 + (K841253532 * tmp13) + (K415415013 * tmp7) -
149 (K142314838 * tmp10) - (K654860733 * tmp4) - (K959492973 * tmp16);
150 real_output[0] = tmp1 + tmp16 + tmp13 + tmp4 + tmp7 + tmp10;
151 }
152
153 fftw_codelet_desc fftw_real2hc_11_desc = {
154 "fftw_real2hc_11",
155 (void (*)()) fftw_real2hc_11,
156 11,
157 FFTW_FORWARD,
158 FFTW_REAL2HC,
159 244,
160 0,
161 (const int *) 0,
162 };
163