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| Rev | Author | Line No. | Line |
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| 2 | pj | 1 | /* |
| 2 | * Copyright (c) 1997-1999 Massachusetts Institute of Technology |
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| 3 | * |
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| 4 | * This program is free software; you can redistribute it and/or modify |
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| 5 | * it under the terms of the GNU General Public License as published by |
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| 6 | * the Free Software Foundation; either version 2 of the License, or |
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| 7 | * (at your option) any later version. |
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| 8 | * |
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| 9 | * This program is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 12 | * GNU General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU General Public License |
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| 15 | * along with this program; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 17 | * |
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| 18 | */ |
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| 19 | |||
| 20 | /* This file was automatically generated --- DO NOT EDIT */ |
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| 21 | /* Generated on Tue May 18 13:54:27 EDT 1999 */ |
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| 22 | |||
| 107 | pj | 23 | #include <fftw-int.h> |
| 24 | #include <fftw.h> |
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| 2 | pj | 25 | |
| 26 | /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 5 */ |
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| 27 | |||
| 28 | /* |
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| 29 | * This function contains 32 FP additions, 12 FP multiplications, |
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| 30 | * (or, 26 additions, 6 multiplications, 6 fused multiply/add), |
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| 31 | * 16 stack variables, and 20 memory accesses |
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| 32 | */ |
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| 33 | static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000); |
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| 34 | static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438); |
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| 35 | static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634); |
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| 36 | static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590); |
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| 37 | |||
| 38 | /* |
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| 39 | * Generator Id's : |
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| 107 | pj | 40 | * $Id: fn_5.c,v 1.2 2003-03-24 11:14:50 pj Exp $ |
| 41 | * $Id: fn_5.c,v 1.2 2003-03-24 11:14:50 pj Exp $ |
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| 42 | * $Id: fn_5.c,v 1.2 2003-03-24 11:14:50 pj Exp $ |
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| 2 | pj | 43 | */ |
| 44 | |||
| 45 | void fftw_no_twiddle_5(const fftw_complex *input, fftw_complex *output, int istride, int ostride) |
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| 46 | { |
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| 47 | fftw_real tmp1; |
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| 48 | fftw_real tmp24; |
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| 49 | fftw_real tmp8; |
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| 50 | fftw_real tmp9; |
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| 51 | fftw_real tmp28; |
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| 52 | fftw_real tmp29; |
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| 53 | fftw_real tmp14; |
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| 54 | fftw_real tmp25; |
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| 55 | fftw_real tmp23; |
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| 56 | fftw_real tmp17; |
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| 57 | ASSERT_ALIGNED_DOUBLE(); |
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| 58 | tmp1 = c_re(input[0]); |
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| 59 | tmp24 = c_im(input[0]); |
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| 60 | { |
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| 61 | fftw_real tmp2; |
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| 62 | fftw_real tmp3; |
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| 63 | fftw_real tmp4; |
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| 64 | fftw_real tmp5; |
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| 65 | fftw_real tmp6; |
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| 66 | fftw_real tmp7; |
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| 67 | ASSERT_ALIGNED_DOUBLE(); |
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| 68 | tmp2 = c_re(input[istride]); |
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| 69 | tmp3 = c_re(input[4 * istride]); |
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| 70 | tmp4 = tmp2 + tmp3; |
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| 71 | tmp5 = c_re(input[2 * istride]); |
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| 72 | tmp6 = c_re(input[3 * istride]); |
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| 73 | tmp7 = tmp5 + tmp6; |
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| 74 | tmp8 = tmp4 + tmp7; |
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| 75 | tmp9 = K559016994 * (tmp4 - tmp7); |
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| 76 | tmp28 = tmp2 - tmp3; |
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| 77 | tmp29 = tmp5 - tmp6; |
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| 78 | } |
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| 79 | { |
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| 80 | fftw_real tmp12; |
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| 81 | fftw_real tmp13; |
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| 82 | fftw_real tmp21; |
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| 83 | fftw_real tmp15; |
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| 84 | fftw_real tmp16; |
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| 85 | fftw_real tmp22; |
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| 86 | ASSERT_ALIGNED_DOUBLE(); |
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| 87 | tmp12 = c_im(input[istride]); |
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| 88 | tmp13 = c_im(input[4 * istride]); |
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| 89 | tmp21 = tmp12 + tmp13; |
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| 90 | tmp15 = c_im(input[2 * istride]); |
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| 91 | tmp16 = c_im(input[3 * istride]); |
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| 92 | tmp22 = tmp15 + tmp16; |
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| 93 | tmp14 = tmp12 - tmp13; |
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| 94 | tmp25 = tmp21 + tmp22; |
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| 95 | tmp23 = K559016994 * (tmp21 - tmp22); |
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| 96 | tmp17 = tmp15 - tmp16; |
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| 97 | } |
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| 98 | c_re(output[0]) = tmp1 + tmp8; |
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| 99 | { |
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| 100 | fftw_real tmp18; |
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| 101 | fftw_real tmp20; |
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| 102 | fftw_real tmp11; |
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| 103 | fftw_real tmp19; |
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| 104 | fftw_real tmp10; |
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| 105 | ASSERT_ALIGNED_DOUBLE(); |
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| 106 | tmp18 = (K951056516 * tmp14) + (K587785252 * tmp17); |
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| 107 | tmp20 = (K951056516 * tmp17) - (K587785252 * tmp14); |
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| 108 | tmp10 = tmp1 - (K250000000 * tmp8); |
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| 109 | tmp11 = tmp9 + tmp10; |
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| 110 | tmp19 = tmp10 - tmp9; |
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| 111 | c_re(output[4 * ostride]) = tmp11 - tmp18; |
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| 112 | c_re(output[ostride]) = tmp11 + tmp18; |
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| 113 | c_re(output[2 * ostride]) = tmp19 - tmp20; |
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| 114 | c_re(output[3 * ostride]) = tmp19 + tmp20; |
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| 115 | } |
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| 116 | c_im(output[0]) = tmp24 + tmp25; |
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| 117 | { |
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| 118 | fftw_real tmp30; |
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| 119 | fftw_real tmp31; |
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| 120 | fftw_real tmp27; |
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| 121 | fftw_real tmp32; |
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| 122 | fftw_real tmp26; |
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| 123 | ASSERT_ALIGNED_DOUBLE(); |
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| 124 | tmp30 = (K951056516 * tmp28) + (K587785252 * tmp29); |
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| 125 | tmp31 = (K951056516 * tmp29) - (K587785252 * tmp28); |
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| 126 | tmp26 = tmp24 - (K250000000 * tmp25); |
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| 127 | tmp27 = tmp23 + tmp26; |
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| 128 | tmp32 = tmp26 - tmp23; |
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| 129 | c_im(output[ostride]) = tmp27 - tmp30; |
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| 130 | c_im(output[4 * ostride]) = tmp30 + tmp27; |
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| 131 | c_im(output[2 * ostride]) = tmp31 + tmp32; |
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| 132 | c_im(output[3 * ostride]) = tmp32 - tmp31; |
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| 133 | } |
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| 134 | } |
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| 135 | |||
| 136 | fftw_codelet_desc fftw_no_twiddle_5_desc = |
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| 137 | { |
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| 138 | "fftw_no_twiddle_5", |
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| 139 | (void (*)()) fftw_no_twiddle_5, |
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| 140 | 5, |
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| 141 | FFTW_FORWARD, |
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| 142 | FFTW_NOTW, |
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| 143 | 111, |
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| 144 | 0, |
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| 145 | (const int *) 0, |
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| 146 | }; |