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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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2376
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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4100
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28 #include <climits> |
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29 |
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3503
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30 #include <iostream> |
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4726
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31 #include <vector> |
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2901
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32 |
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4944
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33 #include "data-conv.h" |
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2376
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34 #include "lo-ieee.h" |
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35 #include "lo-utils.h" |
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4944
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36 #include "mach-info.h" |
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2376
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37 #include "mx-base.h" |
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4153
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38 #include "quit.h" |
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39 |
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4901
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40 #include "defun.h" |
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41 #include "gripes.h" |
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42 #include "oct-obj.h" |
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2979
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43 #include "oct-lvalue.h" |
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4944
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44 #include "oct-stream.h" |
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2410
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45 #include "ops.h" |
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3219
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46 #include "ov-base.h" |
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47 #include "ov-base-mat.h" |
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48 #include "ov-base-mat.cc" |
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2410
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49 #include "ov-scalar.h" |
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50 #include "ov-re-mat.h" |
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4901
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51 #include "ov-type-conv.h" |
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52 #include "pr-output.h" |
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2948
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53 #include "variables.h" |
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54 |
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4687
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55 #include "byte-swap.h" |
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56 #include "ls-oct-ascii.h" |
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57 #include "ls-utils.h" |
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4805
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58 #include "ls-hdf5.h" |
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59 |
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4100
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60 #if ! defined (UCHAR_MAX) |
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61 #define UCHAR_MAX 255 |
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62 #endif |
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63 |
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4513
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64 template class octave_base_matrix<NDArray>; |
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65 |
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3219
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66 DEFINE_OCTAVE_ALLOCATOR (octave_matrix); |
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2477
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67 |
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4612
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68 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_matrix, "matrix", "double"); |
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69 |
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70 octave_base_value * |
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2410
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71 octave_matrix::try_narrowing_conversion (void) |
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72 { |
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73 octave_base_value *retval = 0; |
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2410
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74 |
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4513
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75 if (matrix.nelem () == 1) |
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76 retval = new octave_scalar (matrix (0)); |
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2410
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77 |
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78 return retval; |
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79 } |
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80 |
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81 bool |
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82 octave_matrix::valid_as_scalar_index (void) const |
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83 { |
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5775
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84 // FIXME |
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85 return false; |
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86 } |
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87 |
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88 double |
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89 octave_matrix::double_value (bool) const |
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90 { |
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4102
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91 double retval = lo_ieee_nan_value (); |
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92 |
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4645
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93 if (numel () > 0) |
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4455
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94 { |
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5781
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95 gripe_implicit_conversion ("Octave:array-as-scalar", |
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96 "real matrix", "real scalar"); |
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97 |
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98 retval = matrix (0, 0); |
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99 } |
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100 else |
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101 gripe_invalid_conversion ("real matrix", "real scalar"); |
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102 |
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103 return retval; |
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104 } |
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105 |
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5775
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106 // FIXME |
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4513
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107 |
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108 Matrix |
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109 octave_matrix::matrix_value (bool) const |
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110 { |
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111 return matrix.matrix_value (); |
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112 } |
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113 |
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114 Complex |
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115 octave_matrix::complex_value (bool) const |
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116 { |
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4102
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117 double tmp = lo_ieee_nan_value (); |
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118 |
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119 Complex retval (tmp, tmp); |
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120 |
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121 if (rows () > 0 && columns () > 0) |
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122 { |
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5781
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123 gripe_implicit_conversion ("Octave:array-as-scalar", |
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124 "real matrix", "complex scalar"); |
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125 |
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126 retval = matrix (0, 0); |
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127 } |
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128 else |
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129 gripe_invalid_conversion ("real matrix", "complex scalar"); |
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130 |
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131 return retval; |
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132 } |
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133 |
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5775
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134 // FIXME |
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135 |
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136 ComplexMatrix |
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137 octave_matrix::complex_matrix_value (bool) const |
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138 { |
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139 return ComplexMatrix (matrix.matrix_value ()); |
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140 } |
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141 |
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4699
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142 ComplexNDArray |
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143 octave_matrix::complex_array_value (bool) const |
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144 { |
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145 return ComplexNDArray (matrix); |
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146 } |
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147 |
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4758
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148 charNDArray |
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149 octave_matrix::char_array_value (bool) const |
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150 { |
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151 charNDArray retval (dims ()); |
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152 |
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5275
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153 octave_idx_type nel = numel (); |
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4758
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154 |
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5275
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155 for (octave_idx_type i = 0; i < nel; i++) |
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4758
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156 retval.elem (i) = static_cast<char>(matrix.elem (i)); |
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157 |
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158 return retval; |
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159 } |
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160 |
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5164
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161 SparseMatrix |
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162 octave_matrix::sparse_matrix_value (bool) const |
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163 { |
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164 return SparseMatrix (matrix.matrix_value ()); |
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165 } |
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166 |
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167 SparseComplexMatrix |
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168 octave_matrix::sparse_complex_matrix_value (bool) const |
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169 { |
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5775
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170 // FIXME Need a SparseComplexMatrix (Matrix) constructor to make |
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171 // this function more efficient. Then this should become |
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172 // return SparseComplexMatrix (matrix.matrix_value ()); |
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173 return SparseComplexMatrix (sparse_matrix_value ()); |
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174 } |
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175 |
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176 streamoff_array |
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177 octave_matrix::streamoff_array_value (void) const |
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178 { |
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179 streamoff_array retval (dims ()); |
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180 |
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5275
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181 octave_idx_type nel = numel (); |
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182 |
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5275
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183 for (octave_idx_type i = 0; i < nel; i++) |
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184 { |
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185 double d = matrix(i); |
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186 |
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187 if (D_NINT (d) == d) |
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188 retval(i) = std::streamoff (static_cast<long> (d)); |
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189 else |
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190 { |
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191 error ("conversion to streamoff_array value failed"); |
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192 break; |
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193 } |
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194 } |
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195 |
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196 return retval; |
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197 } |
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198 |
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199 octave_value |
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5279
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200 octave_matrix::convert_to_str_internal (bool, bool, char type) const |
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201 { |
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202 octave_value retval; |
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4844
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203 dim_vector dv = dims (); |
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5862
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204 octave_idx_type nel = dv.numel (); |
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205 |
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206 charNDArray chm (dv); |
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207 |
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5862
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208 bool warned = false; |
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209 |
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210 for (octave_idx_type i = 0; i < nel; i++) |
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211 { |
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212 OCTAVE_QUIT; |
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213 |
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214 double d = matrix (i); |
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215 |
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5862
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216 if (xisnan (d)) |
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217 { |
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218 ::error ("invalid conversion from NaN to character"); |
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219 return retval; |
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220 } |
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221 else |
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4844
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222 { |
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5862
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223 int ival = NINT (d); |
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224 |
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5862
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225 if (ival < 0 || ival > UCHAR_MAX) |
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226 { |
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227 // FIXME -- is there something |
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228 // better we could do? |
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229 |
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5862
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230 ival = 0; |
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231 |
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232 if (! warned) |
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233 { |
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234 ::warning ("range error for conversion to character value"); |
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235 warned = true; |
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236 } |
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4844
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237 } |
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238 |
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5862
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239 chm (i) = static_cast<char> (ival); |
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240 } |
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241 } |
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242 |
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5862
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243 retval = octave_value (chm, true, type); |
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244 |
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245 return retval; |
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246 } |
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247 |
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4687
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248 static Matrix |
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249 strip_infnan (const Matrix& m) |
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250 { |
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5275
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251 octave_idx_type nr = m.rows (); |
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252 octave_idx_type nc = m.columns (); |
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4687
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253 |
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254 Matrix retval (nr, nc); |
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255 |
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5275
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256 octave_idx_type k = 0; |
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257 for (octave_idx_type i = 0; i < nr; i++) |
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4687
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258 { |
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5275
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259 for (octave_idx_type j = 0; j < nc; j++) |
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4687
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260 { |
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261 double d = m (i, j); |
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262 if (xisnan (d)) |
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263 goto next_row; |
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264 else |
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265 retval (k, j) = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
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266 } |
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267 k++; |
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268 |
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269 next_row: |
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270 continue; |
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271 } |
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272 |
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273 if (k > 0) |
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274 retval.resize (k, nc); |
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275 |
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276 return retval; |
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277 } |
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278 |
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279 bool |
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280 octave_matrix::save_ascii (std::ostream& os, bool& infnan_warned, |
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281 bool strip_nan_and_inf) |
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282 { |
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283 dim_vector d = dims (); |
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284 if (d.length () > 2) |
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285 { |
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286 NDArray tmp = array_value (); |
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287 |
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288 if (strip_nan_and_inf) |
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289 { |
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290 warning ("save: Can not strip Inf or NaN values"); |
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291 warning ("save: Inf or NaN values may not be reloadable"); |
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292 infnan_warned = true; |
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293 } |
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294 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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295 { |
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296 warning ("save: Inf or NaN values may not be reloadable"); |
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297 infnan_warned = true; |
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298 } |
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299 |
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300 os << "# ndims: " << d.length () << "\n"; |
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301 |
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302 for (int i=0; i < d.length (); i++) |
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303 os << " " << d (i); |
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304 |
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305 os << "\n" << tmp; |
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306 } |
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307 else |
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308 { |
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309 // Keep this case, rather than use generic code above for backward |
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310 // compatiability. Makes load_ascii much more complex!! |
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311 os << "# rows: " << rows () << "\n" |
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312 << "# columns: " << columns () << "\n"; |
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313 |
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314 Matrix tmp = matrix_value (); |
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315 |
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316 if (strip_nan_and_inf) |
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317 tmp = strip_infnan (tmp); |
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318 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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319 { |
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320 warning ("save: Inf or NaN values may not be reloadable"); |
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321 infnan_warned = true; |
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322 } |
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323 |
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324 os << tmp; |
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325 } |
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326 |
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327 return true; |
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328 } |
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329 |
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330 bool |
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331 octave_matrix::load_ascii (std::istream& is) |
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332 { |
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333 bool success = true; |
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5099
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334 |
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335 string_vector keywords(2); |
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336 |
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337 keywords[0] = "ndims"; |
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338 keywords[1] = "rows"; |
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4687
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339 |
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5099
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340 std::string kw; |
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5275
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341 octave_idx_type val = 0; |
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5099
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342 |
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343 if (extract_keyword (is, keywords, kw, val, true)) |
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4687
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344 { |
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5099
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345 if (kw == "ndims") |
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4687
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346 { |
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5275
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347 int mdims = static_cast<int> (val); |
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4687
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348 |
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5099
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349 if (mdims >= 0) |
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4687
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350 { |
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5099
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351 dim_vector dv; |
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352 dv.resize (mdims); |
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4687
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353 |
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5099
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354 for (int i = 0; i < mdims; i++) |
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355 is >> dv(i); |
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4687
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356 |
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5099
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357 NDArray tmp(dv); |
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4687
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358 is >> tmp; |
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5099
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359 |
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360 if (!is) |
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4687
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361 { |
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362 error ("load: failed to load matrix constant"); |
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363 success = false; |
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364 } |
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5099
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365 matrix = tmp; |
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4687
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366 } |
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367 else |
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5099
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368 { |
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369 error ("load: failed to extract number of rows and columns"); |
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370 success = false; |
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371 } |
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4687
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372 } |
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5099
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373 else if (kw == "rows") |
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4687
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374 { |
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5275
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375 octave_idx_type nr = val; |
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376 octave_idx_type nc = 0; |
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5099
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377 |
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378 if (nr >= 0 && extract_keyword (is, "columns", nc) && nc >= 0) |
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379 { |
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380 if (nr > 0 && nc > 0) |
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381 { |
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382 Matrix tmp (nr, nc); |
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383 is >> tmp; |
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384 if (is) |
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385 matrix = tmp; |
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386 else |
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387 { |
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388 error ("load: failed to load matrix constant"); |
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389 success = false; |
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390 } |
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391 } |
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392 else if (nr == 0 || nc == 0) |
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393 matrix = Matrix (nr, nc); |
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394 else |
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395 panic_impossible (); |
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396 } |
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397 else |
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398 { |
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399 error ("load: failed to extract number of rows and columns"); |
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400 success = false; |
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401 } |
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4687
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402 } |
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5099
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403 else |
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404 panic_impossible (); |
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405 } |
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406 else |
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407 { |
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408 error ("load: failed to extract number of rows and columns"); |
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409 success = false; |
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4687
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410 } |
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411 |
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412 return success; |
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413 } |
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414 |
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415 bool |
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416 octave_matrix::save_binary (std::ostream& os, bool& save_as_floats) |
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417 { |
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418 |
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419 dim_vector d = dims (); |
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420 if (d.length() < 1) |
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421 return false; |
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422 |
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423 // Use negative value for ndims to differentiate with old format!! |
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5828
|
424 int32_t tmp = - d.length(); |
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5760
|
425 os.write (reinterpret_cast<char *> (&tmp), 4); |
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5275
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426 for (int i = 0; i < d.length (); i++) |
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4687
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427 { |
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428 tmp = d(i); |
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5760
|
429 os.write (reinterpret_cast<char *> (&tmp), 4); |
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4687
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430 } |
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431 |
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432 NDArray m = array_value (); |
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433 save_type st = LS_DOUBLE; |
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434 if (save_as_floats) |
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435 { |
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436 if (m.too_large_for_float ()) |
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437 { |
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438 warning ("save: some values too large to save as floats --"); |
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439 warning ("save: saving as doubles instead"); |
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440 } |
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441 else |
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442 st = LS_FLOAT; |
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443 } |
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5775
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444 else if (d.numel () > 8192) // FIXME -- make this configurable. |
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4687
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445 { |
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446 double max_val, min_val; |
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447 if (m.all_integers (max_val, min_val)) |
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448 st = get_save_type (max_val, min_val); |
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449 } |
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450 |
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451 const double *mtmp = m.data (); |
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|
452 write_doubles (os, mtmp, st, d.numel ()); |
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453 |
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454 return true; |
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455 } |
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456 |
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|
457 bool |
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458 octave_matrix::load_binary (std::istream& is, bool swap, |
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|
459 oct_mach_info::float_format fmt) |
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|
460 { |
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|
461 char tmp; |
|
5828
|
462 int32_t mdims; |
|
5760
|
463 if (! is.read (reinterpret_cast<char *> (&mdims), 4)) |
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4687
|
464 return false; |
|
|
465 if (swap) |
|
4944
|
466 swap_bytes<4> (&mdims); |
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4687
|
467 if (mdims < 0) |
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|
468 { |
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|
469 mdims = - mdims; |
|
5828
|
470 int32_t di; |
|
4687
|
471 dim_vector dv; |
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|
472 dv.resize (mdims); |
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|
473 |
|
|
474 for (int i = 0; i < mdims; i++) |
|
|
475 { |
|
5760
|
476 if (! is.read (reinterpret_cast<char *> (&di), 4)) |
|
4687
|
477 return false; |
|
|
478 if (swap) |
|
4944
|
479 swap_bytes<4> (&di); |
|
4687
|
480 dv(i) = di; |
|
|
481 } |
|
|
482 |
|
5157
|
483 // Convert an array with a single dimension to be a row vector. |
|
|
484 // Octave should never write files like this, other software |
|
|
485 // might. |
|
|
486 |
|
|
487 if (mdims == 1) |
|
|
488 { |
|
|
489 mdims = 2; |
|
|
490 dv.resize (mdims); |
|
|
491 dv(1) = dv(0); |
|
|
492 dv(0) = 1; |
|
|
493 } |
|
|
494 |
|
5760
|
495 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
|
4687
|
496 return false; |
|
|
497 |
|
|
498 NDArray m(dv); |
|
|
499 double *re = m.fortran_vec (); |
|
5760
|
500 read_doubles (is, re, static_cast<save_type> (tmp), dv.numel (), swap, fmt); |
|
4687
|
501 if (error_state || ! is) |
|
|
502 return false; |
|
|
503 matrix = m; |
|
|
504 } |
|
|
505 else |
|
|
506 { |
|
5828
|
507 int32_t nr, nc; |
|
4687
|
508 nr = mdims; |
|
5760
|
509 if (! is.read (reinterpret_cast<char *> (&nc), 4)) |
|
4687
|
510 return false; |
|
|
511 if (swap) |
|
4944
|
512 swap_bytes<4> (&nc); |
|
5760
|
513 if (! is.read (reinterpret_cast<char *> (&tmp), 1)) |
|
4687
|
514 return false; |
|
|
515 Matrix m (nr, nc); |
|
|
516 double *re = m.fortran_vec (); |
|
5275
|
517 octave_idx_type len = nr * nc; |
|
5760
|
518 read_doubles (is, re, static_cast<save_type> (tmp), len, swap, fmt); |
|
4687
|
519 if (error_state || ! is) |
|
|
520 return false; |
|
|
521 matrix = m; |
|
|
522 } |
|
|
523 return true; |
|
|
524 } |
|
|
525 |
|
|
526 #if defined (HAVE_HDF5) |
|
4944
|
527 |
|
4687
|
528 bool |
|
|
529 octave_matrix::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
|
530 { |
|
4837
|
531 dim_vector dv = dims (); |
|
|
532 int empty = save_hdf5_empty (loc_id, name, dv); |
|
|
533 if (empty) |
|
4805
|
534 return (empty > 0); |
|
|
535 |
|
4837
|
536 int rank = dv.length (); |
|
4687
|
537 hid_t space_hid = -1, data_hid = -1; |
|
|
538 bool retval = true; |
|
|
539 NDArray m = array_value (); |
|
|
540 |
|
4805
|
541 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
542 |
|
4687
|
543 // Octave uses column-major, while HDF5 uses row-major ordering |
|
4805
|
544 for (int i = 0; i < rank; i++) |
|
4837
|
545 hdims[i] = dv (rank-i-1); |
|
4805
|
546 |
|
4815
|
547 space_hid = H5Screate_simple (rank, hdims, 0); |
|
4687
|
548 |
|
|
549 if (space_hid < 0) return false; |
|
|
550 |
|
|
551 hid_t save_type_hid = H5T_NATIVE_DOUBLE; |
|
|
552 |
|
|
553 if (save_as_floats) |
|
|
554 { |
|
|
555 if (m.too_large_for_float ()) |
|
|
556 { |
|
|
557 warning ("save: some values too large to save as floats --"); |
|
|
558 warning ("save: saving as doubles instead"); |
|
|
559 } |
|
|
560 else |
|
|
561 save_type_hid = H5T_NATIVE_FLOAT; |
|
|
562 } |
|
|
563 #if HAVE_HDF5_INT2FLOAT_CONVERSIONS |
|
|
564 // hdf5 currently doesn't support float/integer conversions |
|
|
565 else |
|
|
566 { |
|
|
567 double max_val, min_val; |
|
|
568 |
|
|
569 if (m.all_integers (max_val, min_val)) |
|
|
570 save_type_hid |
|
|
571 = save_type_to_hdf5 (get_save_type (max_val, min_val)); |
|
|
572 } |
|
|
573 #endif /* HAVE_HDF5_INT2FLOAT_CONVERSIONS */ |
|
|
574 |
|
|
575 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
|
|
576 H5P_DEFAULT); |
|
|
577 if (data_hid < 0) |
|
|
578 { |
|
|
579 H5Sclose (space_hid); |
|
|
580 return false; |
|
|
581 } |
|
|
582 |
|
|
583 double *mtmp = m.fortran_vec (); |
|
|
584 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
4815
|
585 H5P_DEFAULT, mtmp) >= 0; |
|
4687
|
586 |
|
|
587 H5Dclose (data_hid); |
|
|
588 H5Sclose (space_hid); |
|
4837
|
589 |
|
4687
|
590 return retval; |
|
|
591 } |
|
|
592 |
|
|
593 bool |
|
|
594 octave_matrix::load_hdf5 (hid_t loc_id, const char *name, |
|
|
595 bool /* have_h5giterate_bug */) |
|
|
596 { |
|
4837
|
597 bool retval = false; |
|
|
598 |
|
4805
|
599 dim_vector dv; |
|
|
600 int empty = load_hdf5_empty (loc_id, name, dv); |
|
|
601 if (empty > 0) |
|
|
602 matrix.resize(dv); |
|
4837
|
603 if (empty) |
|
4805
|
604 return (empty > 0); |
|
|
605 |
|
4687
|
606 hid_t data_hid = H5Dopen (loc_id, name); |
|
|
607 hid_t space_id = H5Dget_space (data_hid); |
|
|
608 |
|
|
609 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
|
|
610 |
|
|
611 if (rank < 1) |
|
|
612 { |
|
|
613 H5Sclose (space_id); |
|
|
614 H5Dclose (data_hid); |
|
|
615 return false; |
|
|
616 } |
|
|
617 |
|
|
618 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
619 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
|
|
620 |
|
|
621 H5Sget_simple_extent_dims (space_id, hdims, maxdims); |
|
|
622 |
|
|
623 // Octave uses column-major, while HDF5 uses row-major ordering |
|
|
624 if (rank == 1) |
|
|
625 { |
|
|
626 dv.resize (2); |
|
|
627 dv(0) = 1; |
|
|
628 dv(1) = hdims[0]; |
|
|
629 } |
|
|
630 else |
|
|
631 { |
|
|
632 dv.resize (rank); |
|
4815
|
633 for (hsize_t i = 0, j = rank - 1; i < rank; i++, j--) |
|
4687
|
634 dv(j) = hdims[i]; |
|
|
635 } |
|
|
636 |
|
|
637 NDArray m (dv); |
|
|
638 double *re = m.fortran_vec (); |
|
|
639 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
4815
|
640 H5P_DEFAULT, re) >= 0) |
|
4687
|
641 { |
|
|
642 retval = true; |
|
|
643 matrix = m; |
|
|
644 } |
|
|
645 |
|
|
646 H5Sclose (space_id); |
|
|
647 H5Dclose (data_hid); |
|
4837
|
648 |
|
4687
|
649 return retval; |
|
|
650 } |
|
4944
|
651 |
|
4687
|
652 #endif |
|
|
653 |
|
4643
|
654 void |
|
|
655 octave_matrix::print_raw (std::ostream& os, |
|
|
656 bool pr_as_read_syntax) const |
|
|
657 { |
|
|
658 octave_print_internal (os, matrix, pr_as_read_syntax, |
|
|
659 current_print_indent_level ()); |
|
|
660 } |
|
|
661 |
|
4901
|
662 DEFUN (double, args, , |
|
|
663 "-*- texinfo -*-\n\ |
|
|
664 @deftypefn {Built-in Function} {} double (@var{x})\n\ |
|
|
665 Convert @var{x} to double precision type.\n\ |
|
|
666 @end deftypefn") |
|
|
667 { |
|
|
668 OCTAVE_TYPE_CONV_BODY3 (double, octave_matrix, octave_scalar); |
|
|
669 } |
|
|
670 |
|
2376
|
671 /* |
|
|
672 ;;; Local Variables: *** |
|
|
673 ;;; mode: C++ *** |
|
|
674 ;;; End: *** |
|
|
675 */ |
