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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 13:55:12 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 -hc2real 32 */ |
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27 | |||
28 | /* |
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29 | * This function contains 156 FP additions, 54 FP multiplications, |
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30 | * (or, 140 additions, 38 multiplications, 16 fused multiply/add), |
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31 | * 44 stack variables, and 64 memory accesses |
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32 | */ |
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33 | static const fftw_real K765366864 = FFTW_KONST(+0.765366864730179543456919968060797733522689125); |
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34 | static const fftw_real K1_847759065 = FFTW_KONST(+1.847759065022573512256366378793576573644833252); |
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35 | static const fftw_real K555570233 = FFTW_KONST(+0.555570233019602224742830813948532874374937191); |
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36 | static const fftw_real K831469612 = FFTW_KONST(+0.831469612302545237078788377617905756738560812); |
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37 | static const fftw_real K195090322 = FFTW_KONST(+0.195090322016128267848284868477022240927691618); |
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38 | static const fftw_real K980785280 = FFTW_KONST(+0.980785280403230449126182236134239036973933731); |
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39 | static const fftw_real K1_414213562 = FFTW_KONST(+1.414213562373095048801688724209698078569671875); |
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40 | static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); |
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41 | |||
42 | /* |
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43 | * Generator Id's : |
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44 | * $Id: fcr_32.c,v 1.1.1.1 2002-03-29 14:12:57 pj Exp $ |
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45 | * $Id: fcr_32.c,v 1.1.1.1 2002-03-29 14:12:57 pj Exp $ |
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46 | * $Id: fcr_32.c,v 1.1.1.1 2002-03-29 14:12:57 pj Exp $ |
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47 | */ |
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48 | |||
49 | void fftw_hc2real_32(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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50 | { |
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51 | fftw_real tmp9; |
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52 | fftw_real tmp134; |
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53 | fftw_real tmp96; |
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54 | fftw_real tmp37; |
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55 | fftw_real tmp32; |
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56 | fftw_real tmp58; |
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57 | fftw_real tmp56; |
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58 | fftw_real tmp80; |
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59 | fftw_real tmp145; |
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60 | fftw_real tmp149; |
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61 | fftw_real tmp119; |
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62 | fftw_real tmp123; |
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63 | fftw_real tmp6; |
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64 | fftw_real tmp34; |
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65 | fftw_real tmp93; |
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66 | fftw_real tmp133; |
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67 | fftw_real tmp17; |
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68 | fftw_real tmp39; |
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69 | fftw_real tmp46; |
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70 | fftw_real tmp83; |
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71 | fftw_real tmp100; |
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72 | fftw_real tmp136; |
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73 | fftw_real tmp103; |
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74 | fftw_real tmp137; |
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75 | fftw_real tmp25; |
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76 | fftw_real tmp49; |
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77 | fftw_real tmp65; |
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78 | fftw_real tmp79; |
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79 | fftw_real tmp142; |
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80 | fftw_real tmp148; |
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81 | fftw_real tmp112; |
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82 | fftw_real tmp122; |
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83 | ASSERT_ALIGNED_DOUBLE(); |
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84 | { |
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85 | fftw_real tmp7; |
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86 | fftw_real tmp8; |
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87 | fftw_real tmp94; |
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88 | fftw_real tmp35; |
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89 | fftw_real tmp36; |
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90 | fftw_real tmp95; |
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91 | ASSERT_ALIGNED_DOUBLE(); |
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92 | tmp7 = real_input[4 * real_istride]; |
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93 | tmp8 = real_input[12 * real_istride]; |
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94 | tmp94 = tmp7 - tmp8; |
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95 | tmp35 = imag_input[4 * imag_istride]; |
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96 | tmp36 = imag_input[12 * imag_istride]; |
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97 | tmp95 = tmp36 + tmp35; |
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98 | tmp9 = K2_000000000 * (tmp7 + tmp8); |
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99 | tmp134 = K1_414213562 * (tmp94 + tmp95); |
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100 | tmp96 = K1_414213562 * (tmp94 - tmp95); |
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101 | tmp37 = K2_000000000 * (tmp35 - tmp36); |
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102 | } |
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103 | { |
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104 | fftw_real tmp28; |
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105 | fftw_real tmp113; |
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106 | fftw_real tmp55; |
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107 | fftw_real tmp117; |
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108 | fftw_real tmp31; |
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109 | fftw_real tmp116; |
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110 | fftw_real tmp52; |
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111 | fftw_real tmp114; |
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112 | ASSERT_ALIGNED_DOUBLE(); |
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113 | { |
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114 | fftw_real tmp26; |
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115 | fftw_real tmp27; |
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116 | fftw_real tmp53; |
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117 | fftw_real tmp54; |
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118 | ASSERT_ALIGNED_DOUBLE(); |
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119 | tmp26 = real_input[3 * real_istride]; |
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120 | tmp27 = real_input[13 * real_istride]; |
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121 | tmp28 = tmp26 + tmp27; |
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122 | tmp113 = tmp26 - tmp27; |
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123 | tmp53 = imag_input[3 * imag_istride]; |
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124 | tmp54 = imag_input[13 * imag_istride]; |
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125 | tmp55 = tmp53 - tmp54; |
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126 | tmp117 = tmp53 + tmp54; |
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127 | } |
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128 | { |
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129 | fftw_real tmp29; |
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130 | fftw_real tmp30; |
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131 | fftw_real tmp50; |
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132 | fftw_real tmp51; |
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133 | ASSERT_ALIGNED_DOUBLE(); |
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134 | tmp29 = real_input[5 * real_istride]; |
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135 | tmp30 = real_input[11 * real_istride]; |
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136 | tmp31 = tmp29 + tmp30; |
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137 | tmp116 = tmp30 - tmp29; |
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138 | tmp50 = imag_input[5 * imag_istride]; |
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139 | tmp51 = imag_input[11 * imag_istride]; |
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140 | tmp52 = tmp50 - tmp51; |
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141 | tmp114 = tmp51 + tmp50; |
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142 | } |
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143 | tmp32 = tmp28 + tmp31; |
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144 | tmp58 = tmp31 - tmp28; |
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145 | tmp56 = tmp52 + tmp55; |
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146 | tmp80 = tmp55 - tmp52; |
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147 | { |
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148 | fftw_real tmp143; |
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149 | fftw_real tmp144; |
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150 | fftw_real tmp115; |
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151 | fftw_real tmp118; |
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152 | ASSERT_ALIGNED_DOUBLE(); |
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153 | tmp143 = tmp113 + tmp114; |
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154 | tmp144 = tmp117 - tmp116; |
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155 | tmp145 = (K980785280 * tmp143) - (K195090322 * tmp144); |
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156 | tmp149 = (K195090322 * tmp143) + (K980785280 * tmp144); |
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157 | tmp115 = tmp113 - tmp114; |
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158 | tmp118 = tmp116 + tmp117; |
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159 | tmp119 = (K831469612 * tmp115) - (K555570233 * tmp118); |
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160 | tmp123 = (K555570233 * tmp115) + (K831469612 * tmp118); |
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161 | } |
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162 | } |
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163 | { |
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164 | fftw_real tmp5; |
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165 | fftw_real tmp92; |
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166 | fftw_real tmp3; |
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167 | fftw_real tmp90; |
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168 | ASSERT_ALIGNED_DOUBLE(); |
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169 | { |
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170 | fftw_real tmp4; |
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171 | fftw_real tmp91; |
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172 | fftw_real tmp1; |
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173 | fftw_real tmp2; |
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174 | ASSERT_ALIGNED_DOUBLE(); |
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175 | tmp4 = real_input[8 * real_istride]; |
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176 | tmp5 = K2_000000000 * tmp4; |
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177 | tmp91 = imag_input[8 * imag_istride]; |
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178 | tmp92 = K2_000000000 * tmp91; |
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179 | tmp1 = real_input[0]; |
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180 | tmp2 = real_input[16 * real_istride]; |
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181 | tmp3 = tmp1 + tmp2; |
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182 | tmp90 = tmp1 - tmp2; |
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183 | } |
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184 | tmp6 = tmp3 + tmp5; |
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185 | tmp34 = tmp3 - tmp5; |
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186 | tmp93 = tmp90 - tmp92; |
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187 | tmp133 = tmp90 + tmp92; |
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188 | } |
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189 | { |
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190 | fftw_real tmp13; |
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191 | fftw_real tmp98; |
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192 | fftw_real tmp45; |
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193 | fftw_real tmp102; |
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194 | fftw_real tmp16; |
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195 | fftw_real tmp101; |
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196 | fftw_real tmp42; |
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197 | fftw_real tmp99; |
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198 | ASSERT_ALIGNED_DOUBLE(); |
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199 | { |
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200 | fftw_real tmp11; |
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201 | fftw_real tmp12; |
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202 | fftw_real tmp43; |
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203 | fftw_real tmp44; |
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204 | ASSERT_ALIGNED_DOUBLE(); |
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205 | tmp11 = real_input[2 * real_istride]; |
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206 | tmp12 = real_input[14 * real_istride]; |
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207 | tmp13 = tmp11 + tmp12; |
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208 | tmp98 = tmp11 - tmp12; |
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209 | tmp43 = imag_input[2 * imag_istride]; |
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210 | tmp44 = imag_input[14 * imag_istride]; |
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211 | tmp45 = tmp43 - tmp44; |
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212 | tmp102 = tmp43 + tmp44; |
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213 | } |
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214 | { |
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215 | fftw_real tmp14; |
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216 | fftw_real tmp15; |
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217 | fftw_real tmp40; |
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218 | fftw_real tmp41; |
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219 | ASSERT_ALIGNED_DOUBLE(); |
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220 | tmp14 = real_input[6 * real_istride]; |
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221 | tmp15 = real_input[10 * real_istride]; |
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222 | tmp16 = tmp14 + tmp15; |
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223 | tmp101 = tmp15 - tmp14; |
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224 | tmp40 = imag_input[6 * imag_istride]; |
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225 | tmp41 = imag_input[10 * imag_istride]; |
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226 | tmp42 = tmp40 - tmp41; |
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227 | tmp99 = tmp41 + tmp40; |
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228 | } |
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229 | tmp17 = K2_000000000 * (tmp13 + tmp16); |
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230 | tmp39 = tmp13 - tmp16; |
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231 | tmp46 = tmp42 + tmp45; |
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232 | tmp83 = K2_000000000 * (tmp45 - tmp42); |
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233 | tmp100 = tmp98 - tmp99; |
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234 | tmp136 = tmp98 + tmp99; |
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235 | tmp103 = tmp101 + tmp102; |
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236 | tmp137 = tmp102 - tmp101; |
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237 | } |
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238 | { |
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239 | fftw_real tmp21; |
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240 | fftw_real tmp106; |
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241 | fftw_real tmp64; |
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242 | fftw_real tmp110; |
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243 | fftw_real tmp24; |
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244 | fftw_real tmp109; |
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245 | fftw_real tmp61; |
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246 | fftw_real tmp107; |
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247 | ASSERT_ALIGNED_DOUBLE(); |
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248 | { |
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249 | fftw_real tmp19; |
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250 | fftw_real tmp20; |
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251 | fftw_real tmp62; |
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252 | fftw_real tmp63; |
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253 | ASSERT_ALIGNED_DOUBLE(); |
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254 | tmp19 = real_input[real_istride]; |
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255 | tmp20 = real_input[15 * real_istride]; |
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256 | tmp21 = tmp19 + tmp20; |
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257 | tmp106 = tmp19 - tmp20; |
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258 | tmp62 = imag_input[imag_istride]; |
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259 | tmp63 = imag_input[15 * imag_istride]; |
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260 | tmp64 = tmp62 - tmp63; |
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261 | tmp110 = tmp62 + tmp63; |
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262 | } |
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263 | { |
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264 | fftw_real tmp22; |
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265 | fftw_real tmp23; |
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266 | fftw_real tmp59; |
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267 | fftw_real tmp60; |
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268 | ASSERT_ALIGNED_DOUBLE(); |
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269 | tmp22 = real_input[7 * real_istride]; |
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270 | tmp23 = real_input[9 * real_istride]; |
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271 | tmp24 = tmp22 + tmp23; |
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272 | tmp109 = tmp23 - tmp22; |
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273 | tmp59 = imag_input[7 * imag_istride]; |
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274 | tmp60 = imag_input[9 * imag_istride]; |
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275 | tmp61 = tmp59 - tmp60; |
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276 | tmp107 = tmp60 + tmp59; |
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277 | } |
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278 | tmp25 = tmp21 + tmp24; |
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279 | tmp49 = tmp21 - tmp24; |
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280 | tmp65 = tmp61 + tmp64; |
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281 | tmp79 = tmp64 - tmp61; |
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282 | { |
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283 | fftw_real tmp140; |
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284 | fftw_real tmp141; |
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285 | fftw_real tmp108; |
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286 | fftw_real tmp111; |
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287 | ASSERT_ALIGNED_DOUBLE(); |
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288 | tmp140 = tmp106 + tmp107; |
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289 | tmp141 = tmp110 - tmp109; |
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290 | tmp142 = (K555570233 * tmp140) + (K831469612 * tmp141); |
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291 | tmp148 = (K831469612 * tmp140) - (K555570233 * tmp141); |
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292 | tmp108 = tmp106 - tmp107; |
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293 | tmp111 = tmp109 + tmp110; |
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294 | tmp112 = (K980785280 * tmp108) - (K195090322 * tmp111); |
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295 | tmp122 = (K195090322 * tmp108) + (K980785280 * tmp111); |
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296 | } |
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297 | } |
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298 | { |
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299 | fftw_real tmp33; |
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300 | fftw_real tmp81; |
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301 | fftw_real tmp18; |
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302 | fftw_real tmp78; |
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303 | fftw_real tmp10; |
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304 | ASSERT_ALIGNED_DOUBLE(); |
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305 | tmp33 = K2_000000000 * (tmp25 + tmp32); |
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306 | tmp81 = K2_000000000 * (tmp79 - tmp80); |
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307 | tmp10 = tmp6 + tmp9; |
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308 | tmp18 = tmp10 + tmp17; |
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309 | tmp78 = tmp10 - tmp17; |
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310 | output[16 * ostride] = tmp18 - tmp33; |
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311 | output[0] = tmp18 + tmp33; |
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312 | output[8 * ostride] = tmp78 - tmp81; |
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313 | output[24 * ostride] = tmp78 + tmp81; |
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314 | } |
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315 | { |
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316 | fftw_real tmp84; |
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317 | fftw_real tmp88; |
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318 | fftw_real tmp87; |
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319 | fftw_real tmp89; |
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320 | fftw_real tmp82; |
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321 | fftw_real tmp85; |
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322 | fftw_real tmp86; |
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323 | ASSERT_ALIGNED_DOUBLE(); |
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324 | tmp82 = tmp6 - tmp9; |
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325 | tmp84 = tmp82 - tmp83; |
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326 | tmp88 = tmp82 + tmp83; |
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327 | tmp85 = tmp25 - tmp32; |
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328 | tmp86 = tmp79 + tmp80; |
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329 | tmp87 = K1_414213562 * (tmp85 - tmp86); |
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330 | tmp89 = K1_414213562 * (tmp85 + tmp86); |
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331 | output[20 * ostride] = tmp84 - tmp87; |
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332 | output[4 * ostride] = tmp84 + tmp87; |
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333 | output[12 * ostride] = tmp88 - tmp89; |
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334 | output[28 * ostride] = tmp88 + tmp89; |
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335 | } |
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336 | { |
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337 | fftw_real tmp48; |
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338 | fftw_real tmp68; |
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339 | fftw_real tmp67; |
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340 | fftw_real tmp69; |
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341 | ASSERT_ALIGNED_DOUBLE(); |
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342 | { |
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343 | fftw_real tmp38; |
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344 | fftw_real tmp47; |
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345 | fftw_real tmp57; |
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346 | fftw_real tmp66; |
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347 | ASSERT_ALIGNED_DOUBLE(); |
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348 | tmp38 = tmp34 - tmp37; |
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349 | tmp47 = K1_414213562 * (tmp39 - tmp46); |
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350 | tmp48 = tmp38 + tmp47; |
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351 | tmp68 = tmp38 - tmp47; |
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352 | tmp57 = tmp49 - tmp56; |
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353 | tmp66 = tmp58 + tmp65; |
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354 | tmp67 = (K1_847759065 * tmp57) - (K765366864 * tmp66); |
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355 | tmp69 = (K1_847759065 * tmp66) + (K765366864 * tmp57); |
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356 | } |
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357 | output[18 * ostride] = tmp48 - tmp67; |
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358 | output[2 * ostride] = tmp48 + tmp67; |
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359 | output[10 * ostride] = tmp68 - tmp69; |
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360 | output[26 * ostride] = tmp68 + tmp69; |
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361 | } |
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362 | { |
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363 | fftw_real tmp72; |
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364 | fftw_real tmp76; |
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365 | fftw_real tmp75; |
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366 | fftw_real tmp77; |
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367 | ASSERT_ALIGNED_DOUBLE(); |
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368 | { |
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369 | fftw_real tmp70; |
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370 | fftw_real tmp71; |
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371 | fftw_real tmp73; |
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372 | fftw_real tmp74; |
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373 | ASSERT_ALIGNED_DOUBLE(); |
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374 | tmp70 = tmp34 + tmp37; |
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375 | tmp71 = K1_414213562 * (tmp39 + tmp46); |
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376 | tmp72 = tmp70 - tmp71; |
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377 | tmp76 = tmp70 + tmp71; |
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378 | tmp73 = tmp49 + tmp56; |
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379 | tmp74 = tmp65 - tmp58; |
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380 | tmp75 = (K765366864 * tmp73) - (K1_847759065 * tmp74); |
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381 | tmp77 = (K765366864 * tmp74) + (K1_847759065 * tmp73); |
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382 | } |
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383 | output[22 * ostride] = tmp72 - tmp75; |
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384 | output[6 * ostride] = tmp72 + tmp75; |
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385 | output[14 * ostride] = tmp76 - tmp77; |
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386 | output[30 * ostride] = tmp76 + tmp77; |
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387 | } |
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388 | { |
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389 | fftw_real tmp120; |
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390 | fftw_real tmp124; |
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391 | fftw_real tmp105; |
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392 | fftw_real tmp121; |
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393 | fftw_real tmp97; |
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394 | fftw_real tmp104; |
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395 | ASSERT_ALIGNED_DOUBLE(); |
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396 | tmp120 = K2_000000000 * (tmp112 + tmp119); |
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397 | tmp124 = K2_000000000 * (tmp122 - tmp123); |
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398 | tmp97 = tmp93 + tmp96; |
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399 | tmp104 = (K1_847759065 * tmp100) - (K765366864 * tmp103); |
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400 | tmp105 = tmp97 + tmp104; |
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401 | tmp121 = tmp97 - tmp104; |
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402 | output[17 * ostride] = tmp105 - tmp120; |
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403 | output[ostride] = tmp105 + tmp120; |
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404 | output[9 * ostride] = tmp121 - tmp124; |
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405 | output[25 * ostride] = tmp121 + tmp124; |
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406 | } |
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407 | { |
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408 | fftw_real tmp127; |
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409 | fftw_real tmp131; |
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410 | fftw_real tmp130; |
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411 | fftw_real tmp132; |
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412 | ASSERT_ALIGNED_DOUBLE(); |
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413 | { |
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414 | fftw_real tmp125; |
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415 | fftw_real tmp126; |
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416 | fftw_real tmp128; |
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417 | fftw_real tmp129; |
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418 | ASSERT_ALIGNED_DOUBLE(); |
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419 | tmp125 = tmp93 - tmp96; |
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420 | tmp126 = (K765366864 * tmp100) + (K1_847759065 * tmp103); |
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421 | tmp127 = tmp125 - tmp126; |
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422 | tmp131 = tmp125 + tmp126; |
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423 | tmp128 = tmp112 - tmp119; |
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424 | tmp129 = tmp122 + tmp123; |
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425 | tmp130 = K1_414213562 * (tmp128 - tmp129); |
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426 | tmp132 = K1_414213562 * (tmp128 + tmp129); |
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427 | } |
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428 | output[21 * ostride] = tmp127 - tmp130; |
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429 | output[5 * ostride] = tmp127 + tmp130; |
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430 | output[13 * ostride] = tmp131 - tmp132; |
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431 | output[29 * ostride] = tmp131 + tmp132; |
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432 | } |
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433 | { |
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434 | fftw_real tmp146; |
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435 | fftw_real tmp150; |
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436 | fftw_real tmp139; |
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437 | fftw_real tmp147; |
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438 | fftw_real tmp135; |
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439 | fftw_real tmp138; |
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440 | ASSERT_ALIGNED_DOUBLE(); |
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441 | tmp146 = K2_000000000 * (tmp142 - tmp145); |
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442 | tmp150 = K2_000000000 * (tmp148 - tmp149); |
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443 | tmp135 = tmp133 - tmp134; |
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444 | tmp138 = (K765366864 * tmp136) - (K1_847759065 * tmp137); |
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445 | tmp139 = tmp135 - tmp138; |
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446 | tmp147 = tmp135 + tmp138; |
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447 | output[11 * ostride] = tmp139 - tmp146; |
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448 | output[27 * ostride] = tmp139 + tmp146; |
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449 | output[19 * ostride] = tmp147 - tmp150; |
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450 | output[3 * ostride] = tmp147 + tmp150; |
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451 | } |
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452 | { |
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453 | fftw_real tmp153; |
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454 | fftw_real tmp157; |
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455 | fftw_real tmp156; |
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456 | fftw_real tmp158; |
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457 | ASSERT_ALIGNED_DOUBLE(); |
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458 | { |
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459 | fftw_real tmp151; |
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460 | fftw_real tmp152; |
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461 | fftw_real tmp154; |
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462 | fftw_real tmp155; |
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463 | ASSERT_ALIGNED_DOUBLE(); |
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464 | tmp151 = tmp133 + tmp134; |
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465 | tmp152 = (K1_847759065 * tmp136) + (K765366864 * tmp137); |
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466 | tmp153 = tmp151 - tmp152; |
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467 | tmp157 = tmp151 + tmp152; |
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468 | tmp154 = tmp148 + tmp149; |
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469 | tmp155 = tmp142 + tmp145; |
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470 | tmp156 = K1_414213562 * (tmp154 - tmp155); |
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471 | tmp158 = K1_414213562 * (tmp155 + tmp154); |
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472 | } |
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473 | output[23 * ostride] = tmp153 - tmp156; |
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474 | output[7 * ostride] = tmp153 + tmp156; |
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475 | output[15 * ostride] = tmp157 - tmp158; |
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476 | output[31 * ostride] = tmp157 + tmp158; |
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477 | } |
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478 | } |
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479 | |||
480 | fftw_codelet_desc fftw_hc2real_32_desc = |
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481 | { |
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482 | "fftw_hc2real_32", |
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483 | (void (*)()) fftw_hc2real_32, |
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484 | 32, |
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485 | FFTW_BACKWARD, |
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486 | FFTW_HC2REAL, |
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487 | 719, |
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488 | 0, |
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489 | (const int *) 0, |
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490 | }; |