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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 13:54:35 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 -real2hc 9 */ |
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27 | |||
28 | /* |
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29 | * This function contains 38 FP additions, 26 FP multiplications, |
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30 | * (or, 29 additions, 17 multiplications, 9 fused multiply/add), |
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31 | * 21 stack variables, and 18 memory accesses |
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32 | */ |
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33 | static const fftw_real K342020143 = FFTW_KONST(+0.342020143325668733044099614682259580763083368); |
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34 | static const fftw_real K813797681 = FFTW_KONST(+0.813797681349373692844693217248393223289101568); |
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35 | static const fftw_real K939692620 = FFTW_KONST(+0.939692620785908384054109277324731469936208134); |
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36 | static const fftw_real K296198132 = FFTW_KONST(+0.296198132726023843175338011893050938967728390); |
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37 | static const fftw_real K852868531 = FFTW_KONST(+0.852868531952443209628250963940074071936020296); |
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38 | static const fftw_real K173648177 = FFTW_KONST(+0.173648177666930348851716626769314796000375677); |
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39 | static const fftw_real K556670399 = FFTW_KONST(+0.556670399226419366452912952047023132968291906); |
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40 | static const fftw_real K766044443 = FFTW_KONST(+0.766044443118978035202392650555416673935832457); |
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41 | static const fftw_real K984807753 = FFTW_KONST(+0.984807753012208059366743024589523013670643252); |
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42 | static const fftw_real K150383733 = FFTW_KONST(+0.150383733180435296639271897612501926072238258); |
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43 | static const fftw_real K642787609 = FFTW_KONST(+0.642787609686539326322643409907263432907559884); |
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44 | static const fftw_real K663413948 = FFTW_KONST(+0.663413948168938396205421319635891297216863310); |
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45 | static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); |
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46 | static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); |
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47 | |||
48 | /* |
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49 | * Generator Id's : |
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107 | pj | 50 | * $Id: frc_9.c,v 1.2 2003-03-24 11:14:59 pj Exp $ |
51 | * $Id: frc_9.c,v 1.2 2003-03-24 11:14:59 pj Exp $ |
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52 | * $Id: frc_9.c,v 1.2 2003-03-24 11:14:59 pj Exp $ |
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2 | pj | 53 | */ |
54 | |||
55 | void fftw_real2hc_9(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride) |
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56 | { |
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57 | fftw_real tmp1; |
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58 | fftw_real tmp15; |
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59 | fftw_real tmp20; |
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60 | fftw_real tmp19; |
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61 | fftw_real tmp4; |
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62 | fftw_real tmp27; |
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63 | fftw_real tmp10; |
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64 | fftw_real tmp18; |
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65 | fftw_real tmp21; |
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66 | fftw_real tmp2; |
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67 | fftw_real tmp3; |
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68 | fftw_real tmp5; |
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69 | fftw_real tmp16; |
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70 | ASSERT_ALIGNED_DOUBLE(); |
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71 | tmp1 = input[0]; |
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72 | { |
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73 | fftw_real tmp11; |
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74 | fftw_real tmp12; |
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75 | fftw_real tmp13; |
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76 | fftw_real tmp14; |
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77 | ASSERT_ALIGNED_DOUBLE(); |
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78 | tmp11 = input[2 * istride]; |
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79 | tmp12 = input[5 * istride]; |
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80 | tmp13 = input[8 * istride]; |
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81 | tmp14 = tmp12 + tmp13; |
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82 | tmp15 = tmp11 + tmp14; |
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83 | tmp20 = tmp11 - (K500000000 * tmp14); |
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84 | tmp19 = tmp13 - tmp12; |
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85 | } |
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86 | tmp2 = input[3 * istride]; |
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87 | tmp3 = input[6 * istride]; |
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88 | tmp4 = tmp2 + tmp3; |
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89 | tmp27 = tmp3 - tmp2; |
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90 | { |
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91 | fftw_real tmp6; |
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92 | fftw_real tmp7; |
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93 | fftw_real tmp8; |
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94 | fftw_real tmp9; |
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95 | ASSERT_ALIGNED_DOUBLE(); |
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96 | tmp6 = input[istride]; |
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97 | tmp7 = input[4 * istride]; |
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98 | tmp8 = input[7 * istride]; |
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99 | tmp9 = tmp7 + tmp8; |
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100 | tmp10 = tmp6 + tmp9; |
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101 | tmp18 = tmp6 - (K500000000 * tmp9); |
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102 | tmp21 = tmp8 - tmp7; |
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103 | } |
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104 | imag_output[3 * imag_ostride] = K866025403 * (tmp15 - tmp10); |
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105 | tmp5 = tmp1 + tmp4; |
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106 | tmp16 = tmp10 + tmp15; |
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107 | real_output[3 * real_ostride] = tmp5 - (K500000000 * tmp16); |
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108 | real_output[0] = tmp5 + tmp16; |
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109 | { |
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110 | fftw_real tmp29; |
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111 | fftw_real tmp25; |
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112 | fftw_real tmp26; |
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113 | fftw_real tmp28; |
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114 | fftw_real tmp17; |
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115 | fftw_real tmp22; |
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116 | fftw_real tmp23; |
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117 | fftw_real tmp24; |
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118 | ASSERT_ALIGNED_DOUBLE(); |
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119 | tmp29 = K866025403 * tmp27; |
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120 | tmp25 = (K663413948 * tmp21) - (K642787609 * tmp18); |
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121 | tmp26 = (K150383733 * tmp19) - (K984807753 * tmp20); |
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122 | tmp28 = tmp25 + tmp26; |
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123 | tmp17 = tmp1 - (K500000000 * tmp4); |
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124 | tmp22 = (K766044443 * tmp18) + (K556670399 * tmp21); |
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125 | tmp23 = (K173648177 * tmp20) + (K852868531 * tmp19); |
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126 | tmp24 = tmp22 + tmp23; |
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127 | real_output[real_ostride] = tmp17 + tmp24; |
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128 | real_output[4 * real_ostride] = tmp17 + (K866025403 * (tmp25 - tmp26)) - (K500000000 * tmp24); |
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129 | real_output[2 * real_ostride] = tmp17 + (K173648177 * tmp18) - (K296198132 * tmp19) - (K939692620 * tmp20) - (K852868531 * tmp21); |
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130 | imag_output[imag_ostride] = tmp29 + tmp28; |
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131 | imag_output[4 * imag_ostride] = (K866025403 * (tmp27 + (tmp23 - tmp22))) - (K500000000 * tmp28); |
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132 | imag_output[2 * imag_ostride] = (K813797681 * tmp19) - (K342020143 * tmp20) - (K150383733 * tmp21) - (K984807753 * tmp18) - tmp29; |
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133 | } |
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134 | } |
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135 | |||
136 | fftw_codelet_desc fftw_real2hc_9_desc = |
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137 | { |
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138 | "fftw_real2hc_9", |
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139 | (void (*)()) fftw_real2hc_9, |
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140 | 9, |
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141 | FFTW_FORWARD, |
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142 | FFTW_REAL2HC, |
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143 | 200, |
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144 | 0, |
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145 | (const int *) 0, |
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146 | }; |