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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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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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4100
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31 #include <climits> |
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32 |
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3503
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33 #include <iostream> |
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4726
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34 #include <vector> |
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2901
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35 |
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4944
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36 #include "data-conv.h" |
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37 #include "lo-ieee.h" |
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38 #include "lo-utils.h" |
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4944
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39 #include "mach-info.h" |
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40 #include "mx-base.h" |
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4153
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41 #include "quit.h" |
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42 |
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4901
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43 #include "defun.h" |
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2376
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44 #include "gripes.h" |
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45 #include "oct-obj.h" |
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2979
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46 #include "oct-lvalue.h" |
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4944
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47 #include "oct-stream.h" |
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2410
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48 #include "ops.h" |
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3219
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49 #include "ov-base.h" |
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50 #include "ov-base-mat.h" |
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51 #include "ov-base-mat.cc" |
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2410
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52 #include "ov-scalar.h" |
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53 #include "ov-re-mat.h" |
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4901
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54 #include "ov-type-conv.h" |
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55 #include "pr-output.h" |
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2948
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56 #include "variables.h" |
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57 |
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4687
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58 #include "byte-swap.h" |
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59 #include "ls-oct-ascii.h" |
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60 #include "ls-utils.h" |
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4805
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61 #include "ls-hdf5.h" |
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62 |
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4100
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63 #if ! defined (UCHAR_MAX) |
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64 #define UCHAR_MAX 255 |
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65 #endif |
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66 |
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4513
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67 template class octave_base_matrix<NDArray>; |
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68 |
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3219
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69 DEFINE_OCTAVE_ALLOCATOR (octave_matrix); |
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70 |
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4612
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71 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_matrix, "matrix", "double"); |
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72 |
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2410
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73 octave_value * |
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74 octave_matrix::try_narrowing_conversion (void) |
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75 { |
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76 octave_value *retval = 0; |
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77 |
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4513
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78 if (matrix.nelem () == 1) |
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79 retval = new octave_scalar (matrix (0)); |
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80 |
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81 return retval; |
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82 } |
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83 |
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84 bool |
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85 octave_matrix::valid_as_scalar_index (void) const |
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86 { |
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87 // XXX FIXME XXX |
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88 return false; |
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89 } |
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90 |
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91 double |
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92 octave_matrix::double_value (bool) const |
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93 { |
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4102
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94 double retval = lo_ieee_nan_value (); |
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95 |
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96 if (numel () > 0) |
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97 { |
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98 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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99 if (Vwarn_fortran_indexing) |
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100 gripe_implicit_conversion ("real matrix", "real scalar"); |
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101 |
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102 retval = matrix (0, 0); |
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103 } |
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104 else |
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105 gripe_invalid_conversion ("real matrix", "real scalar"); |
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106 |
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107 return retval; |
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108 } |
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109 |
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4513
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110 // XXX FIXME XXX |
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111 |
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112 Matrix |
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113 octave_matrix::matrix_value (bool) const |
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114 { |
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115 return matrix.matrix_value (); |
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116 } |
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117 |
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118 Complex |
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119 octave_matrix::complex_value (bool) const |
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120 { |
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4102
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121 double tmp = lo_ieee_nan_value (); |
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122 |
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123 Complex retval (tmp, tmp); |
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124 |
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125 // XXX FIXME XXX -- maybe this should be a function, valid_as_scalar() |
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126 if (rows () > 0 && columns () > 0) |
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127 { |
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128 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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129 if (Vwarn_fortran_indexing) |
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130 gripe_implicit_conversion ("real matrix", "complex scalar"); |
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131 |
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132 retval = matrix (0, 0); |
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133 } |
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134 else |
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135 gripe_invalid_conversion ("real matrix", "complex scalar"); |
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136 |
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137 return retval; |
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138 } |
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139 |
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4513
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140 // XXX FIXME XXX |
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141 |
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142 ComplexMatrix |
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143 octave_matrix::complex_matrix_value (bool) const |
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144 { |
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145 return ComplexMatrix (matrix.matrix_value ()); |
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146 } |
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147 |
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4699
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148 ComplexNDArray |
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149 octave_matrix::complex_array_value (bool) const |
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150 { |
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151 return ComplexNDArray (matrix); |
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152 } |
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153 |
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4758
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154 charNDArray |
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155 octave_matrix::char_array_value (bool) const |
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156 { |
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157 charNDArray retval (dims ()); |
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158 |
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159 int nel = numel (); |
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160 |
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161 for (int i = 0; i < nel; i++) |
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162 retval.elem (i) = static_cast<char>(matrix.elem (i)); |
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163 |
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164 return retval; |
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165 } |
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166 |
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167 streamoff_array |
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168 octave_matrix::streamoff_array_value (void) const |
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169 { |
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170 streamoff_array retval (dims ()); |
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171 |
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172 int nel = numel (); |
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173 |
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174 for (int i = 0; i < nel; i++) |
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175 { |
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176 double d = matrix(i); |
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177 |
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178 if (D_NINT (d) == d) |
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179 retval(i) = std::streamoff (static_cast<long> (d)); |
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180 else |
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181 { |
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182 error ("conversion to streamoff_array value failed"); |
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183 break; |
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184 } |
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185 } |
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186 |
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187 return retval; |
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188 } |
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189 |
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190 octave_value |
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191 octave_matrix::convert_to_str_internal (bool, bool) const |
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192 { |
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193 octave_value retval; |
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194 dim_vector dv = dims (); |
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195 int nel = dv.numel (); |
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196 |
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197 if (nel == 0) |
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198 { |
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199 char s = '\0'; |
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200 retval = octave_value (&s); |
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201 } |
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202 else |
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203 { |
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204 charNDArray chm (dv); |
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205 |
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4844
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206 bool warned = false; |
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207 |
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208 for (int i = 0; i < nel; i++) |
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209 { |
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210 OCTAVE_QUIT; |
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211 |
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212 double d = matrix (i); |
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213 |
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214 if (xisnan (d)) |
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215 { |
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216 ::error ("invalid conversion from NaN to character"); |
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217 return retval; |
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218 } |
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219 else |
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220 { |
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221 int ival = NINT (d); |
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222 |
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223 if (ival < 0 || ival > UCHAR_MAX) |
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224 { |
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225 // XXX FIXME XXX -- is there something |
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226 // better we could do? |
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227 |
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228 ival = 0; |
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229 |
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230 if (! warned) |
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231 { |
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232 ::warning ("range error for conversion to character value"); |
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233 warned = true; |
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234 } |
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235 } |
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236 |
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237 chm (i) = static_cast<char> (ival); |
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238 } |
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239 } |
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240 |
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241 retval = octave_value (chm, 1); |
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242 } |
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243 |
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244 return retval; |
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245 } |
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246 |
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247 static Matrix |
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248 strip_infnan (const Matrix& m) |
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249 { |
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250 int nr = m.rows (); |
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251 int nc = m.columns (); |
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252 |
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253 Matrix retval (nr, nc); |
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254 |
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255 int k = 0; |
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256 for (int i = 0; i < nr; i++) |
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257 { |
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258 for (int j = 0; j < nc; j++) |
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259 { |
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260 double d = m (i, j); |
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261 if (xisnan (d)) |
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262 goto next_row; |
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263 else |
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264 retval (k, j) = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
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265 } |
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266 k++; |
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267 |
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268 next_row: |
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269 continue; |
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270 } |
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271 |
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272 if (k > 0) |
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273 retval.resize (k, nc); |
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274 |
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275 return retval; |
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276 } |
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277 |
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278 bool |
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279 octave_matrix::save_ascii (std::ostream& os, bool& infnan_warned, |
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280 bool strip_nan_and_inf) |
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281 { |
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282 dim_vector d = dims (); |
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283 if (d.length () > 2) |
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284 { |
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285 NDArray tmp = array_value (); |
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286 |
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287 if (strip_nan_and_inf) |
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288 { |
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289 warning ("save: Can not strip Inf or NaN values"); |
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290 warning ("save: Inf or NaN values may not be reloadable"); |
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291 infnan_warned = true; |
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292 } |
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293 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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294 { |
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295 warning ("save: Inf or NaN values may not be reloadable"); |
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296 infnan_warned = true; |
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297 } |
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298 |
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299 os << "# ndims: " << d.length () << "\n"; |
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300 |
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301 for (int i=0; i < d.length (); i++) |
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302 os << " " << d (i); |
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303 |
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304 os << "\n" << tmp; |
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305 } |
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306 else |
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307 { |
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308 // Keep this case, rather than use generic code above for backward |
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309 // compatiability. Makes load_ascii much more complex!! |
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310 os << "# rows: " << rows () << "\n" |
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311 << "# columns: " << columns () << "\n"; |
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312 |
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313 Matrix tmp = matrix_value (); |
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314 |
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315 if (strip_nan_and_inf) |
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316 tmp = strip_infnan (tmp); |
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317 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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318 { |
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319 warning ("save: Inf or NaN values may not be reloadable"); |
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320 infnan_warned = true; |
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321 } |
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322 |
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323 os << tmp; |
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324 } |
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325 |
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326 return true; |
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327 } |
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328 |
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329 bool |
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330 octave_matrix::load_ascii (std::istream& is) |
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331 { |
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332 int mdims = 0; |
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333 bool success = true; |
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334 std::streampos pos = is.tellg (); |
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335 |
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336 if (extract_keyword (is, "ndims", mdims, true)) |
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337 { |
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338 if (mdims >= 0) |
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339 { |
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340 dim_vector dv; |
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341 dv.resize (mdims); |
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342 |
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343 for (int i = 0; i < mdims; i++) |
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344 is >> dv(i); |
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345 |
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346 NDArray tmp(dv); |
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347 is >> tmp; |
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348 |
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349 if (!is) |
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350 { |
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351 error ("load: failed to load matrix constant"); |
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352 success = false; |
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353 } |
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354 matrix = tmp; |
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355 } |
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356 else |
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357 { |
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358 error ("load: failed to extract number of rows and columns"); |
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359 success = false; |
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360 } |
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361 } |
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362 else |
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363 { |
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364 int nr = 0; |
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365 int nc = 0; |
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366 |
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367 // re-read the same line again |
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368 is.clear (); |
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369 is.seekg (pos); |
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370 |
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371 if (extract_keyword (is, "rows", nr) && nr >= 0 |
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372 && extract_keyword (is, "columns", nc) && nc >= 0) |
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373 { |
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374 if (nr > 0 && nc > 0) |
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375 { |
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376 Matrix tmp (nr, nc); |
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377 is >> tmp; |
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378 if (is) |
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379 matrix = tmp; |
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380 else |
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381 { |
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382 error ("load: failed to load matrix constant"); |
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383 success = false; |
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384 } |
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385 } |
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386 else if (nr == 0 || nc == 0) |
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387 matrix = Matrix (nr, nc); |
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388 else |
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389 panic_impossible (); |
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390 } |
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391 else |
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392 { |
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393 error ("load: failed to extract number of rows and columns"); |
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394 success = false; |
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395 } |
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396 } |
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397 |
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398 return success; |
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399 } |
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400 |
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401 bool |
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402 octave_matrix::save_binary (std::ostream& os, bool& save_as_floats) |
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403 { |
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404 |
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405 dim_vector d = dims (); |
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406 if (d.length() < 1) |
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407 return false; |
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408 |
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409 // Use negative value for ndims to differentiate with old format!! |
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410 FOUR_BYTE_INT tmp = - d.length(); |
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411 os.write (X_CAST (char *, &tmp), 4); |
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412 for (int i=0; i < d.length (); i++) |
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413 { |
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414 tmp = d(i); |
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415 os.write (X_CAST (char *, &tmp), 4); |
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416 } |
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417 |
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418 NDArray m = array_value (); |
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419 save_type st = LS_DOUBLE; |
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420 if (save_as_floats) |
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421 { |
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422 if (m.too_large_for_float ()) |
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423 { |
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424 warning ("save: some values too large to save as floats --"); |
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425 warning ("save: saving as doubles instead"); |
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426 } |
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427 else |
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428 st = LS_FLOAT; |
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429 } |
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430 else if (d.numel () > 8192) // XXX FIXME XXX -- make this configurable. |
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431 { |
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432 double max_val, min_val; |
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433 if (m.all_integers (max_val, min_val)) |
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434 st = get_save_type (max_val, min_val); |
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435 } |
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436 |
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437 const double *mtmp = m.data (); |
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438 write_doubles (os, mtmp, st, d.numel ()); |
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439 |
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440 return true; |
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441 } |
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442 |
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443 bool |
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444 octave_matrix::load_binary (std::istream& is, bool swap, |
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445 oct_mach_info::float_format fmt) |
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446 { |
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447 char tmp; |
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448 FOUR_BYTE_INT mdims; |
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449 if (! is.read (X_CAST (char *, &mdims), 4)) |
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450 return false; |
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451 if (swap) |
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4944
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452 swap_bytes<4> (&mdims); |
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4687
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453 if (mdims < 0) |
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454 { |
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455 mdims = - mdims; |
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456 FOUR_BYTE_INT di; |
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457 dim_vector dv; |
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458 dv.resize (mdims); |
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459 |
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460 for (int i = 0; i < mdims; i++) |
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461 { |
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462 if (! is.read (X_CAST (char *, &di), 4)) |
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463 return false; |
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464 if (swap) |
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4944
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465 swap_bytes<4> (&di); |
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4687
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466 dv(i) = di; |
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467 } |
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468 |
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469 if (! is.read (X_CAST (char *, &tmp), 1)) |
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470 return false; |
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471 |
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472 NDArray m(dv); |
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473 double *re = m.fortran_vec (); |
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474 read_doubles (is, re, X_CAST (save_type, tmp), dv.numel (), swap, fmt); |
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475 if (error_state || ! is) |
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476 return false; |
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477 matrix = m; |
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478 } |
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479 else |
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480 { |
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481 FOUR_BYTE_INT nr, nc; |
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482 nr = mdims; |
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483 if (! is.read (X_CAST (char *, &nc), 4)) |
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484 return false; |
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485 if (swap) |
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4944
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486 swap_bytes<4> (&nc); |
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4687
|
487 if (! is.read (X_CAST (char *, &tmp), 1)) |
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|
488 return false; |
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489 Matrix m (nr, nc); |
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490 double *re = m.fortran_vec (); |
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491 int len = nr * nc; |
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492 read_doubles (is, re, X_CAST (save_type, tmp), len, swap, fmt); |
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493 if (error_state || ! is) |
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494 return false; |
|
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495 matrix = m; |
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496 } |
|
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497 return true; |
|
|
498 } |
|
|
499 |
|
|
500 #if defined (HAVE_HDF5) |
|
4944
|
501 |
|
4687
|
502 bool |
|
|
503 octave_matrix::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
|
504 { |
|
4837
|
505 dim_vector dv = dims (); |
|
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506 int empty = save_hdf5_empty (loc_id, name, dv); |
|
|
507 if (empty) |
|
4805
|
508 return (empty > 0); |
|
|
509 |
|
4837
|
510 int rank = dv.length (); |
|
4687
|
511 hid_t space_hid = -1, data_hid = -1; |
|
|
512 bool retval = true; |
|
|
513 NDArray m = array_value (); |
|
|
514 |
|
4805
|
515 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
516 |
|
4687
|
517 // Octave uses column-major, while HDF5 uses row-major ordering |
|
4805
|
518 for (int i = 0; i < rank; i++) |
|
4837
|
519 hdims[i] = dv (rank-i-1); |
|
4805
|
520 |
|
4815
|
521 space_hid = H5Screate_simple (rank, hdims, 0); |
|
4687
|
522 |
|
|
523 if (space_hid < 0) return false; |
|
|
524 |
|
|
525 hid_t save_type_hid = H5T_NATIVE_DOUBLE; |
|
|
526 |
|
|
527 if (save_as_floats) |
|
|
528 { |
|
|
529 if (m.too_large_for_float ()) |
|
|
530 { |
|
|
531 warning ("save: some values too large to save as floats --"); |
|
|
532 warning ("save: saving as doubles instead"); |
|
|
533 } |
|
|
534 else |
|
|
535 save_type_hid = H5T_NATIVE_FLOAT; |
|
|
536 } |
|
|
537 #if HAVE_HDF5_INT2FLOAT_CONVERSIONS |
|
|
538 // hdf5 currently doesn't support float/integer conversions |
|
|
539 else |
|
|
540 { |
|
|
541 double max_val, min_val; |
|
|
542 |
|
|
543 if (m.all_integers (max_val, min_val)) |
|
|
544 save_type_hid |
|
|
545 = save_type_to_hdf5 (get_save_type (max_val, min_val)); |
|
|
546 } |
|
|
547 #endif /* HAVE_HDF5_INT2FLOAT_CONVERSIONS */ |
|
|
548 |
|
|
549 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
|
|
550 H5P_DEFAULT); |
|
|
551 if (data_hid < 0) |
|
|
552 { |
|
|
553 H5Sclose (space_hid); |
|
|
554 return false; |
|
|
555 } |
|
|
556 |
|
|
557 double *mtmp = m.fortran_vec (); |
|
|
558 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
4815
|
559 H5P_DEFAULT, mtmp) >= 0; |
|
4687
|
560 |
|
|
561 H5Dclose (data_hid); |
|
|
562 H5Sclose (space_hid); |
|
4837
|
563 |
|
4687
|
564 return retval; |
|
|
565 } |
|
|
566 |
|
|
567 bool |
|
|
568 octave_matrix::load_hdf5 (hid_t loc_id, const char *name, |
|
|
569 bool /* have_h5giterate_bug */) |
|
|
570 { |
|
4837
|
571 bool retval = false; |
|
|
572 |
|
4805
|
573 dim_vector dv; |
|
|
574 int empty = load_hdf5_empty (loc_id, name, dv); |
|
|
575 if (empty > 0) |
|
|
576 matrix.resize(dv); |
|
4837
|
577 if (empty) |
|
4805
|
578 return (empty > 0); |
|
|
579 |
|
4687
|
580 hid_t data_hid = H5Dopen (loc_id, name); |
|
|
581 hid_t space_id = H5Dget_space (data_hid); |
|
|
582 |
|
|
583 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
|
|
584 |
|
|
585 if (rank < 1) |
|
|
586 { |
|
|
587 H5Sclose (space_id); |
|
|
588 H5Dclose (data_hid); |
|
|
589 return false; |
|
|
590 } |
|
|
591 |
|
|
592 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
593 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
|
|
594 |
|
|
595 H5Sget_simple_extent_dims (space_id, hdims, maxdims); |
|
|
596 |
|
|
597 // Octave uses column-major, while HDF5 uses row-major ordering |
|
|
598 if (rank == 1) |
|
|
599 { |
|
|
600 dv.resize (2); |
|
|
601 dv(0) = 1; |
|
|
602 dv(1) = hdims[0]; |
|
|
603 } |
|
|
604 else |
|
|
605 { |
|
|
606 dv.resize (rank); |
|
4815
|
607 for (hsize_t i = 0, j = rank - 1; i < rank; i++, j--) |
|
4687
|
608 dv(j) = hdims[i]; |
|
|
609 } |
|
|
610 |
|
|
611 NDArray m (dv); |
|
|
612 double *re = m.fortran_vec (); |
|
|
613 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
4815
|
614 H5P_DEFAULT, re) >= 0) |
|
4687
|
615 { |
|
|
616 retval = true; |
|
|
617 matrix = m; |
|
|
618 } |
|
|
619 |
|
|
620 H5Sclose (space_id); |
|
|
621 H5Dclose (data_hid); |
|
4837
|
622 |
|
4687
|
623 return retval; |
|
|
624 } |
|
4944
|
625 |
|
4687
|
626 #endif |
|
|
627 |
|
4643
|
628 void |
|
|
629 octave_matrix::print_raw (std::ostream& os, |
|
|
630 bool pr_as_read_syntax) const |
|
|
631 { |
|
|
632 octave_print_internal (os, matrix, pr_as_read_syntax, |
|
|
633 current_print_indent_level ()); |
|
|
634 } |
|
|
635 |
|
4901
|
636 DEFUN (double, args, , |
|
|
637 "-*- texinfo -*-\n\ |
|
|
638 @deftypefn {Built-in Function} {} double (@var{x})\n\ |
|
|
639 Convert @var{x} to double precision type.\n\ |
|
|
640 @end deftypefn") |
|
|
641 { |
|
|
642 OCTAVE_TYPE_CONV_BODY3 (double, octave_matrix, octave_scalar); |
|
|
643 } |
|
|
644 |
|
2376
|
645 /* |
|
|
646 ;;; Local Variables: *** |
|
|
647 ;;; mode: C++ *** |
|
|
648 ;;; End: *** |
|
|
649 */ |
