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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 13:55:06 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 -hc2real 9 */ |
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27 | |||
28 | /* |
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29 | * This function contains 32 FP additions, 18 FP multiplications, |
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30 | * (or, 22 additions, 8 multiplications, 10 fused multiply/add), |
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31 | * 22 stack variables, and 18 memory accesses |
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32 | */ |
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33 | static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252); |
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34 | static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677); |
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35 | static const fftw_real K300767466 = FFTW_KONST(+0.300767466360870593278543795225003852144476517); |
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36 | static const fftw_real K1_705737063 = FFTW_KONST(+1.705737063904886419256501927880148143872040591); |
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37 | static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884); |
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38 | static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457); |
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39 | static const fftw_real K1_326827896 = FFTW_KONST(+1.326827896337876792410842639271782594433726619); |
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40 | static const fftw_real K1_113340798 = FFTW_KONST(+1.113340798452838732905825904094046265936583811); |
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41 | static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); |
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42 | static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); |
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43 | static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); |
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44 | static const fftw_real K1_732050807 = FFTW_KONST(+1.732050807568877293527446341505872366942805254); |
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45 | |||
46 | /* |
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47 | * Generator Id's : |
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107 | pj | 48 | * $Id: fcr_9.c,v 1.2 2003-03-24 11:14:56 pj Exp $ |
49 | * $Id: fcr_9.c,v 1.2 2003-03-24 11:14:56 pj Exp $ |
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50 | * $Id: fcr_9.c,v 1.2 2003-03-24 11:14:56 pj Exp $ |
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2 | pj | 51 | */ |
52 | |||
53 | void fftw_hc2real_9(const fftw_real *real_input, const fftw_real *imag_input, fftw_real *output, int real_istride, int imag_istride, int ostride) |
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54 | { |
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55 | fftw_real tmp3; |
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56 | fftw_real tmp26; |
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57 | fftw_real tmp12; |
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58 | fftw_real tmp20; |
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59 | fftw_real tmp19; |
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60 | fftw_real tmp8; |
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61 | fftw_real tmp17; |
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62 | fftw_real tmp27; |
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63 | fftw_real tmp22; |
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64 | fftw_real tmp28; |
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65 | fftw_real tmp32; |
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66 | fftw_real tmp33; |
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67 | ASSERT_ALIGNED_DOUBLE(); |
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68 | { |
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69 | fftw_real tmp11; |
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70 | fftw_real tmp1; |
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71 | fftw_real tmp2; |
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72 | fftw_real tmp9; |
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73 | fftw_real tmp10; |
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74 | ASSERT_ALIGNED_DOUBLE(); |
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75 | tmp10 = imag_input[3 * imag_istride]; |
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76 | tmp11 = K1_732050807 * tmp10; |
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77 | tmp1 = real_input[0]; |
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78 | tmp2 = real_input[3 * real_istride]; |
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79 | tmp9 = tmp1 - tmp2; |
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80 | tmp3 = tmp1 + (K2_000000000 * tmp2); |
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81 | tmp26 = tmp9 + tmp11; |
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82 | tmp12 = tmp9 - tmp11; |
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83 | } |
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84 | { |
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85 | fftw_real tmp4; |
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86 | fftw_real tmp7; |
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87 | fftw_real tmp18; |
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88 | fftw_real tmp16; |
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89 | fftw_real tmp13; |
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90 | fftw_real tmp21; |
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91 | ASSERT_ALIGNED_DOUBLE(); |
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92 | tmp4 = real_input[real_istride]; |
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93 | tmp20 = imag_input[imag_istride]; |
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94 | { |
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95 | fftw_real tmp5; |
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96 | fftw_real tmp6; |
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97 | fftw_real tmp14; |
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98 | fftw_real tmp15; |
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99 | ASSERT_ALIGNED_DOUBLE(); |
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100 | tmp5 = real_input[4 * real_istride]; |
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101 | tmp6 = real_input[2 * real_istride]; |
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102 | tmp7 = tmp5 + tmp6; |
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103 | tmp18 = K866025403 * (tmp5 - tmp6); |
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104 | tmp14 = imag_input[4 * imag_istride]; |
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105 | tmp15 = imag_input[2 * imag_istride]; |
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106 | tmp16 = K866025403 * (tmp14 + tmp15); |
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107 | tmp19 = tmp15 - tmp14; |
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108 | } |
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109 | tmp8 = tmp4 + tmp7; |
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110 | tmp13 = tmp4 - (K500000000 * tmp7); |
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111 | tmp17 = tmp13 - tmp16; |
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112 | tmp27 = tmp13 + tmp16; |
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113 | tmp21 = (K500000000 * tmp19) + tmp20; |
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114 | tmp22 = tmp18 + tmp21; |
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115 | tmp28 = tmp21 - tmp18; |
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116 | } |
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117 | output[0] = tmp3 + (K2_000000000 * tmp8); |
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118 | tmp32 = tmp3 - tmp8; |
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119 | tmp33 = K1_732050807 * (tmp20 - tmp19); |
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120 | output[3 * ostride] = tmp32 - tmp33; |
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121 | output[6 * ostride] = tmp32 + tmp33; |
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122 | { |
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123 | fftw_real tmp25; |
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124 | fftw_real tmp23; |
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125 | fftw_real tmp24; |
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126 | fftw_real tmp31; |
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127 | fftw_real tmp29; |
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128 | fftw_real tmp30; |
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129 | ASSERT_ALIGNED_DOUBLE(); |
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130 | tmp25 = (K1_113340798 * tmp17) + (K1_326827896 * tmp22); |
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131 | tmp23 = (K766044443 * tmp17) - (K642787609 * tmp22); |
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132 | tmp24 = tmp12 - tmp23; |
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133 | output[ostride] = tmp12 + (K2_000000000 * tmp23); |
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134 | output[7 * ostride] = tmp24 + tmp25; |
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135 | output[4 * ostride] = tmp24 - tmp25; |
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136 | tmp31 = (K1_705737063 * tmp27) + (K300767466 * tmp28); |
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137 | tmp29 = (K173648177 * tmp27) - (K984807753 * tmp28); |
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138 | tmp30 = tmp26 - tmp29; |
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139 | output[2 * ostride] = tmp26 + (K2_000000000 * tmp29); |
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140 | output[8 * ostride] = tmp30 + tmp31; |
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141 | output[5 * ostride] = tmp30 - tmp31; |
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142 | } |
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143 | } |
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144 | |||
145 | fftw_codelet_desc fftw_hc2real_9_desc = |
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146 | { |
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147 | "fftw_hc2real_9", |
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148 | (void (*)()) fftw_hc2real_9, |
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149 | 9, |
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150 | FFTW_BACKWARD, |
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151 | FFTW_HC2REAL, |
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152 | 213, |
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153 | 0, |
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154 | (const int *) 0, |
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155 | }; |