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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 13:54:39 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 15 */ |
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27 | |||
28 | /* |
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29 | * This function contains 64 FP additions, 25 FP multiplications, |
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30 | * (or, 50 additions, 11 multiplications, 14 fused multiply/add), |
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31 | * 40 stack variables, and 30 memory accesses |
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32 | */ |
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33 | static const fftw_real K509036960 = FFTW_KONST(+0.509036960455127183450980863393907648510733164); |
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34 | static const fftw_real K823639103 = FFTW_KONST(+0.823639103546331925877420039278190003029660514); |
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35 | static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000); |
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36 | static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590); |
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37 | static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438); |
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38 | static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634); |
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39 | static const fftw_real K484122918 = FFTW_KONST(+0.484122918275927110647408174972799951354115213); |
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40 | static const fftw_real K216506350 = FFTW_KONST(+0.216506350946109661690930792688234045867850657); |
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41 | static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); |
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42 | static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); |
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43 | |||
44 | /* |
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45 | * Generator Id's : |
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46 | * $Id: frc_15.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $ |
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47 | * $Id: frc_15.c,v 1.1.1.1 2002-03-29 14:12:58 pj Exp $ |
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48 | * $Id: frc_15.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_15(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 tmp3; |
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54 | fftw_real tmp53; |
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55 | fftw_real tmp47; |
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56 | fftw_real tmp39; |
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57 | fftw_real tmp40; |
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58 | fftw_real tmp10; |
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59 | fftw_real tmp17; |
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60 | fftw_real tmp18; |
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61 | fftw_real tmp57; |
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62 | fftw_real tmp58; |
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63 | fftw_real tmp59; |
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64 | fftw_real tmp31; |
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65 | fftw_real tmp34; |
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66 | fftw_real tmp43; |
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67 | fftw_real tmp54; |
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68 | fftw_real tmp55; |
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69 | fftw_real tmp56; |
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70 | fftw_real tmp24; |
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71 | fftw_real tmp27; |
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72 | fftw_real tmp42; |
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73 | ASSERT_ALIGNED_DOUBLE(); |
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74 | { |
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75 | fftw_real tmp45; |
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76 | fftw_real tmp1; |
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77 | fftw_real tmp2; |
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78 | fftw_real tmp46; |
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79 | ASSERT_ALIGNED_DOUBLE(); |
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80 | tmp45 = input[0]; |
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81 | tmp1 = input[10 * istride]; |
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82 | tmp2 = input[5 * istride]; |
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83 | tmp46 = tmp2 + tmp1; |
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84 | tmp3 = tmp1 - tmp2; |
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85 | tmp53 = tmp45 + tmp46; |
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86 | tmp47 = tmp45 - (K500000000 * tmp46); |
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87 | } |
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88 | { |
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89 | fftw_real tmp22; |
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90 | fftw_real tmp29; |
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91 | fftw_real tmp32; |
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92 | fftw_real tmp6; |
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93 | fftw_real tmp23; |
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94 | fftw_real tmp25; |
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95 | fftw_real tmp16; |
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96 | fftw_real tmp33; |
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97 | fftw_real tmp9; |
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98 | fftw_real tmp26; |
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99 | fftw_real tmp13; |
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100 | fftw_real tmp30; |
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101 | ASSERT_ALIGNED_DOUBLE(); |
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102 | { |
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103 | fftw_real tmp4; |
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104 | fftw_real tmp5; |
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105 | fftw_real tmp14; |
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106 | fftw_real tmp15; |
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107 | ASSERT_ALIGNED_DOUBLE(); |
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108 | tmp22 = input[3 * istride]; |
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109 | tmp29 = input[6 * istride]; |
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110 | tmp32 = input[9 * istride]; |
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111 | tmp4 = input[13 * istride]; |
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112 | tmp5 = input[8 * istride]; |
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113 | tmp6 = tmp4 - tmp5; |
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114 | tmp23 = tmp5 + tmp4; |
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115 | tmp25 = input[12 * istride]; |
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116 | tmp14 = input[4 * istride]; |
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117 | tmp15 = input[14 * istride]; |
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118 | tmp16 = tmp14 - tmp15; |
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119 | tmp33 = tmp15 + tmp14; |
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120 | { |
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121 | fftw_real tmp7; |
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122 | fftw_real tmp8; |
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123 | fftw_real tmp11; |
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124 | fftw_real tmp12; |
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125 | ASSERT_ALIGNED_DOUBLE(); |
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126 | tmp7 = input[7 * istride]; |
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127 | tmp8 = input[2 * istride]; |
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128 | tmp9 = tmp7 - tmp8; |
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129 | tmp26 = tmp8 + tmp7; |
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130 | tmp11 = input[istride]; |
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131 | tmp12 = input[11 * istride]; |
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132 | tmp13 = tmp11 - tmp12; |
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133 | tmp30 = tmp12 + tmp11; |
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134 | } |
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135 | } |
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136 | tmp39 = tmp6 - tmp9; |
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137 | tmp40 = tmp13 - tmp16; |
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138 | tmp10 = tmp6 + tmp9; |
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139 | tmp17 = tmp13 + tmp16; |
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140 | tmp18 = tmp10 + tmp17; |
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141 | tmp57 = tmp29 + tmp30; |
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142 | tmp58 = tmp32 + tmp33; |
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143 | tmp59 = tmp57 + tmp58; |
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144 | tmp31 = tmp29 - (K500000000 * tmp30); |
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145 | tmp34 = tmp32 - (K500000000 * tmp33); |
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146 | tmp43 = tmp31 + tmp34; |
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147 | tmp54 = tmp22 + tmp23; |
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148 | tmp55 = tmp25 + tmp26; |
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149 | tmp56 = tmp54 + tmp55; |
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150 | tmp24 = tmp22 - (K500000000 * tmp23); |
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151 | tmp27 = tmp25 - (K500000000 * tmp26); |
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152 | tmp42 = tmp24 + tmp27; |
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153 | } |
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154 | imag_output[5 * imag_ostride] = -(K866025403 * (tmp3 + tmp18)); |
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155 | { |
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156 | fftw_real tmp21; |
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157 | fftw_real tmp37; |
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158 | fftw_real tmp36; |
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159 | fftw_real tmp38; |
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160 | ASSERT_ALIGNED_DOUBLE(); |
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161 | { |
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162 | fftw_real tmp19; |
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163 | fftw_real tmp20; |
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164 | fftw_real tmp28; |
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165 | fftw_real tmp35; |
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166 | ASSERT_ALIGNED_DOUBLE(); |
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167 | tmp19 = (K866025403 * tmp3) - (K216506350 * tmp18); |
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168 | tmp20 = K484122918 * (tmp10 - tmp17); |
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169 | tmp21 = tmp19 + tmp20; |
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170 | tmp37 = tmp20 - tmp19; |
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171 | tmp28 = tmp24 - tmp27; |
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172 | tmp35 = tmp31 - tmp34; |
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173 | tmp36 = (K951056516 * tmp28) + (K587785252 * tmp35); |
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174 | tmp38 = (K951056516 * tmp35) - (K587785252 * tmp28); |
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175 | } |
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176 | imag_output[imag_ostride] = tmp21 - tmp36; |
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177 | imag_output[4 * imag_ostride] = tmp21 + tmp36; |
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178 | imag_output[2 * imag_ostride] = tmp37 + tmp38; |
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179 | imag_output[7 * imag_ostride] = tmp38 - tmp37; |
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180 | } |
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181 | { |
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182 | fftw_real tmp63; |
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183 | fftw_real tmp64; |
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184 | fftw_real tmp62; |
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185 | fftw_real tmp60; |
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186 | fftw_real tmp61; |
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187 | ASSERT_ALIGNED_DOUBLE(); |
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188 | tmp63 = tmp54 - tmp55; |
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189 | tmp64 = tmp57 - tmp58; |
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190 | imag_output[3 * imag_ostride] = (K587785252 * tmp63) - (K951056516 * tmp64); |
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191 | imag_output[6 * imag_ostride] = -((K951056516 * tmp63) + (K587785252 * tmp64)); |
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192 | tmp62 = K559016994 * (tmp56 - tmp59); |
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193 | tmp60 = tmp56 + tmp59; |
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194 | tmp61 = tmp53 - (K250000000 * tmp60); |
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195 | real_output[3 * real_ostride] = tmp61 - tmp62; |
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196 | real_output[6 * real_ostride] = tmp62 + tmp61; |
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197 | real_output[0] = tmp53 + tmp60; |
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198 | { |
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199 | fftw_real tmp41; |
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200 | fftw_real tmp52; |
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201 | fftw_real tmp44; |
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202 | fftw_real tmp48; |
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203 | fftw_real tmp49; |
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204 | fftw_real tmp51; |
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205 | fftw_real tmp50; |
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206 | ASSERT_ALIGNED_DOUBLE(); |
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207 | tmp41 = (K823639103 * tmp39) + (K509036960 * tmp40); |
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208 | tmp52 = (K509036960 * tmp39) - (K823639103 * tmp40); |
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209 | tmp44 = K559016994 * (tmp42 - tmp43); |
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210 | tmp48 = tmp42 + tmp43; |
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211 | tmp49 = tmp47 - (K250000000 * tmp48); |
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212 | real_output[5 * real_ostride] = tmp47 + tmp48; |
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213 | tmp51 = tmp49 - tmp44; |
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214 | real_output[2 * real_ostride] = tmp51 - tmp52; |
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215 | real_output[7 * real_ostride] = tmp52 + tmp51; |
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216 | tmp50 = tmp44 + tmp49; |
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217 | real_output[real_ostride] = tmp41 + tmp50; |
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218 | real_output[4 * real_ostride] = tmp50 - tmp41; |
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219 | } |
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220 | } |
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221 | } |
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222 | |||
223 | fftw_codelet_desc fftw_real2hc_15_desc = |
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224 | { |
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225 | "fftw_real2hc_15", |
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226 | (void (*)()) fftw_real2hc_15, |
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227 | 15, |
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228 | FFTW_FORWARD, |
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229 | FFTW_REAL2HC, |
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230 | 332, |
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231 | 0, |
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232 | (const int *) 0, |
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233 | }; |