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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 13:54:36 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 11 */ |
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27 | |||
28 | /* |
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29 | * This function contains 60 FP additions, 50 FP multiplications, |
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30 | * (or, 60 additions, 50 multiplications, 0 fused multiply/add), |
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31 | * 17 stack variables, and 22 memory accesses |
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32 | */ |
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33 | static const fftw_real K654860733 = FFTW_KONST(+0.654860733945285064056925072466293553183791199); |
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34 | static const fftw_real K142314838 = FFTW_KONST(+0.142314838273285140443792668616369668791051361); |
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35 | static const fftw_real K959492973 = FFTW_KONST(+0.959492973614497389890368057066327699062454848); |
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36 | static const fftw_real K415415013 = FFTW_KONST(+0.415415013001886425529274149229623203524004910); |
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37 | static const fftw_real K841253532 = FFTW_KONST(+0.841253532831181168861811648919367717513292498); |
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38 | static const fftw_real K989821441 = FFTW_KONST(+0.989821441880932732376092037776718787376519372); |
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39 | static const fftw_real K909631995 = FFTW_KONST(+0.909631995354518371411715383079028460060241051); |
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40 | static const fftw_real K281732556 = FFTW_KONST(+0.281732556841429697711417915346616899035777899); |
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41 | static const fftw_real K540640817 = FFTW_KONST(+0.540640817455597582107635954318691695431770608); |
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42 | static const fftw_real K755749574 = FFTW_KONST(+0.755749574354258283774035843972344420179717445); |
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43 | |||
44 | /* |
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45 | * Generator Id's : |
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46 | * $Id: frc_11.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $ |
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47 | * $Id: frc_11.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $ |
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48 | * $Id: frc_11.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $ |
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49 | */ |
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50 | |||
51 | void fftw_real2hc_11(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride) |
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52 | { |
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53 | fftw_real tmp1; |
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54 | fftw_real tmp4; |
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55 | fftw_real tmp21; |
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56 | fftw_real tmp16; |
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57 | fftw_real tmp17; |
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58 | fftw_real tmp13; |
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59 | fftw_real tmp18; |
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60 | fftw_real tmp10; |
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61 | fftw_real tmp20; |
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62 | fftw_real tmp7; |
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63 | fftw_real tmp19; |
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64 | fftw_real tmp11; |
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65 | fftw_real tmp12; |
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66 | ASSERT_ALIGNED_DOUBLE(); |
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67 | tmp1 = input[0]; |
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68 | { |
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69 | fftw_real tmp2; |
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70 | fftw_real tmp3; |
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71 | fftw_real tmp14; |
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72 | fftw_real tmp15; |
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73 | ASSERT_ALIGNED_DOUBLE(); |
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74 | tmp2 = input[2 * istride]; |
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75 | tmp3 = input[9 * istride]; |
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76 | tmp4 = tmp2 + tmp3; |
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77 | tmp21 = tmp3 - tmp2; |
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78 | tmp14 = input[istride]; |
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79 | tmp15 = input[10 * istride]; |
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80 | tmp16 = tmp14 + tmp15; |
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81 | tmp17 = tmp15 - tmp14; |
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82 | } |
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83 | tmp11 = input[3 * istride]; |
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84 | tmp12 = input[8 * istride]; |
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85 | tmp13 = tmp11 + tmp12; |
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86 | tmp18 = tmp12 - tmp11; |
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87 | { |
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88 | fftw_real tmp8; |
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89 | fftw_real tmp9; |
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90 | fftw_real tmp5; |
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91 | fftw_real tmp6; |
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92 | ASSERT_ALIGNED_DOUBLE(); |
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93 | tmp8 = input[5 * istride]; |
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94 | tmp9 = input[6 * istride]; |
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95 | tmp10 = tmp8 + tmp9; |
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96 | tmp20 = tmp9 - tmp8; |
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97 | tmp5 = input[4 * istride]; |
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98 | tmp6 = input[7 * istride]; |
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99 | tmp7 = tmp5 + tmp6; |
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100 | tmp19 = tmp6 - tmp5; |
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101 | } |
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102 | imag_output[4 * imag_ostride] = (K755749574 * tmp17) + (K540640817 * tmp18) + (K281732556 * tmp19) - (K909631995 * tmp20) - (K989821441 * tmp21); |
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103 | imag_output[imag_ostride] = (K540640817 * tmp17) + (K909631995 * tmp21) + (K989821441 * tmp18) + (K755749574 * tmp19) + (K281732556 * tmp20); |
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104 | imag_output[5 * imag_ostride] = (K281732556 * tmp17) + (K755749574 * tmp18) + (K989821441 * tmp20) - (K909631995 * tmp19) - (K540640817 * tmp21); |
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105 | imag_output[2 * imag_ostride] = (K909631995 * tmp17) + (K755749574 * tmp21) - (K540640817 * tmp20) - (K989821441 * tmp19) - (K281732556 * tmp18); |
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106 | imag_output[3 * imag_ostride] = (K989821441 * tmp17) + (K540640817 * tmp19) + (K755749574 * tmp20) - (K909631995 * tmp18) - (K281732556 * tmp21); |
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107 | real_output[4 * real_ostride] = tmp1 + (K841253532 * tmp13) + (K415415013 * tmp10) - (K959492973 * tmp7) - (K142314838 * tmp4) - (K654860733 * tmp16); |
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108 | real_output[5 * real_ostride] = tmp1 + (K841253532 * tmp4) + (K415415013 * tmp7) - (K142314838 * tmp10) - (K654860733 * tmp13) - (K959492973 * tmp16); |
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109 | real_output[real_ostride] = tmp1 + (K841253532 * tmp16) + (K415415013 * tmp4) - (K959492973 * tmp10) - (K654860733 * tmp7) - (K142314838 * tmp13); |
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110 | real_output[0] = tmp1 + tmp16 + tmp4 + tmp13 + tmp7 + tmp10; |
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111 | real_output[3 * real_ostride] = tmp1 + (K415415013 * tmp13) + (K841253532 * tmp7) - (K654860733 * tmp10) - (K959492973 * tmp4) - (K142314838 * tmp16); |
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112 | real_output[2 * real_ostride] = tmp1 + (K415415013 * tmp16) + (K841253532 * tmp10) - (K142314838 * tmp7) - (K959492973 * tmp13) - (K654860733 * tmp4); |
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113 | } |
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114 | |||
115 | fftw_codelet_desc fftw_real2hc_11_desc = |
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116 | { |
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117 | "fftw_real2hc_11", |
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118 | (void (*)()) fftw_real2hc_11, |
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119 | 11, |
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120 | FFTW_FORWARD, |
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121 | FFTW_REAL2HC, |
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122 | 244, |
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123 | 0, |
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124 | (const int *) 0, |
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125 | }; |