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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 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 13:54:34 EDT 1999 */ |
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| 22 | |||
| 23 | #include <ports/fftw-int.h> |
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| 24 | #include <ports/fftw.h> |
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| 25 | |||
| 26 | /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 7 */ |
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| 27 | |||
| 28 | /* |
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| 29 | * This function contains 24 FP additions, 18 FP multiplications, |
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| 30 | * (or, 24 additions, 18 multiplications, 0 fused multiply/add), |
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| 31 | * 13 stack variables, and 14 memory accesses |
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| 32 | */ |
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| 33 | static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569); |
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| 34 | static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162); |
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| 35 | static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731); |
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| 36 | static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728); |
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| 37 | static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519); |
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| 38 | static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801); |
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| 39 | |||
| 40 | /* |
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| 41 | * Generator Id's : |
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| 42 | * $Id: frc_7.c,v 1.1.1.1 2002-03-29 14:12:59 pj Exp $ |
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| 43 | * $Id: frc_7.c,v 1.1.1.1 2002-03-29 14:12:59 pj Exp $ |
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| 44 | * $Id: frc_7.c,v 1.1.1.1 2002-03-29 14:12:59 pj Exp $ |
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| 45 | */ |
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| 46 | |||
| 47 | void fftw_real2hc_7(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride) |
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| 48 | { |
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| 49 | fftw_real tmp1; |
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| 50 | fftw_real tmp10; |
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| 51 | fftw_real tmp11; |
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| 52 | fftw_real tmp4; |
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| 53 | fftw_real tmp13; |
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| 54 | fftw_real tmp7; |
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| 55 | fftw_real tmp12; |
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| 56 | fftw_real tmp8; |
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| 57 | fftw_real tmp9; |
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| 58 | ASSERT_ALIGNED_DOUBLE(); |
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| 59 | tmp1 = input[0]; |
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| 60 | tmp8 = input[istride]; |
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| 61 | tmp9 = input[6 * istride]; |
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| 62 | tmp10 = tmp8 + tmp9; |
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| 63 | tmp11 = tmp9 - tmp8; |
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| 64 | { |
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| 65 | fftw_real tmp2; |
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| 66 | fftw_real tmp3; |
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| 67 | fftw_real tmp5; |
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| 68 | fftw_real tmp6; |
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| 69 | ASSERT_ALIGNED_DOUBLE(); |
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| 70 | tmp2 = input[2 * istride]; |
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| 71 | tmp3 = input[5 * istride]; |
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| 72 | tmp4 = tmp2 + tmp3; |
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| 73 | tmp13 = tmp3 - tmp2; |
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| 74 | tmp5 = input[3 * istride]; |
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| 75 | tmp6 = input[4 * istride]; |
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| 76 | tmp7 = tmp5 + tmp6; |
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| 77 | tmp12 = tmp6 - tmp5; |
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| 78 | } |
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| 79 | imag_output[2 * imag_ostride] = (K974927912 * tmp11) - (K781831482 * tmp12) - (K433883739 * tmp13); |
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| 80 | imag_output[imag_ostride] = (K781831482 * tmp11) + (K974927912 * tmp13) + (K433883739 * tmp12); |
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| 81 | imag_output[3 * imag_ostride] = (K433883739 * tmp11) + (K974927912 * tmp12) - (K781831482 * tmp13); |
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| 82 | real_output[2 * real_ostride] = tmp1 + (K623489801 * tmp7) - (K900968867 * tmp4) - (K222520933 * tmp10); |
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| 83 | real_output[real_ostride] = tmp1 + (K623489801 * tmp10) - (K900968867 * tmp7) - (K222520933 * tmp4); |
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| 84 | real_output[3 * real_ostride] = tmp1 + (K623489801 * tmp4) - (K222520933 * tmp7) - (K900968867 * tmp10); |
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| 85 | real_output[0] = tmp1 + tmp10 + tmp4 + tmp7; |
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| 86 | } |
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| 87 | |||
| 88 | fftw_codelet_desc fftw_real2hc_7_desc = |
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| 89 | { |
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| 90 | "fftw_real2hc_7", |
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| 91 | (void (*)()) fftw_real2hc_7, |
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| 92 | 7, |
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| 93 | FFTW_FORWARD, |
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| 94 | FFTW_REAL2HC, |
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| 95 | 156, |
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| 96 | 0, |
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| 97 | (const int *) 0, |
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| 98 | }; |