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