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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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2901
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34 |
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35 #include "lo-ieee.h" |
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36 #include "lo-utils.h" |
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37 #include "mx-base.h" |
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38 #include "quit.h" |
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39 |
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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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2410
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43 #include "ops.h" |
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3219
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44 #include "ov-base.h" |
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45 #include "ov-base-mat.h" |
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46 #include "ov-base-mat.cc" |
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2410
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47 #include "ov-scalar.h" |
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48 #include "ov-re-mat.h" |
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49 #include "pr-output.h" |
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2948
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50 #include "variables.h" |
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51 |
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52 #include "byte-swap.h" |
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53 #include "ls-oct-ascii.h" |
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54 #include "ls-utils.h" |
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55 |
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4100
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56 #if ! defined (UCHAR_MAX) |
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57 #define UCHAR_MAX 255 |
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58 #endif |
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59 |
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4513
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60 template class octave_base_matrix<NDArray>; |
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61 |
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3219
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62 DEFINE_OCTAVE_ALLOCATOR (octave_matrix); |
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63 |
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4612
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64 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_matrix, "matrix", "double"); |
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65 |
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66 octave_value * |
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67 octave_matrix::try_narrowing_conversion (void) |
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68 { |
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69 octave_value *retval = 0; |
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70 |
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71 if (matrix.nelem () == 1) |
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72 retval = new octave_scalar (matrix (0)); |
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73 |
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74 return retval; |
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75 } |
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76 |
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77 bool |
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78 octave_matrix::valid_as_scalar_index (void) const |
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79 { |
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80 // XXX FIXME XXX |
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81 return false; |
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82 } |
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83 |
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84 double |
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85 octave_matrix::double_value (bool) const |
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86 { |
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4102
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87 double retval = lo_ieee_nan_value (); |
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88 |
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89 if (numel () > 0) |
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90 { |
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91 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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92 if (Vwarn_fortran_indexing) |
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93 gripe_implicit_conversion ("real matrix", "real scalar"); |
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94 |
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95 retval = matrix (0, 0); |
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96 } |
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97 else |
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98 gripe_invalid_conversion ("real matrix", "real scalar"); |
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99 |
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100 return retval; |
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101 } |
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102 |
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103 // XXX FIXME XXX |
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104 |
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105 Matrix |
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106 octave_matrix::matrix_value (bool) const |
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107 { |
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108 return matrix.matrix_value (); |
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109 } |
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110 |
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111 Complex |
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112 octave_matrix::complex_value (bool) const |
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113 { |
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114 double tmp = lo_ieee_nan_value (); |
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115 |
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116 Complex retval (tmp, tmp); |
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117 |
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118 // XXX FIXME XXX -- maybe this should be a function, valid_as_scalar() |
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119 if (rows () > 0 && columns () > 0) |
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120 { |
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121 // XXX FIXME XXX -- is warn_fortran_indexing the right variable here? |
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122 if (Vwarn_fortran_indexing) |
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123 gripe_implicit_conversion ("real matrix", "complex scalar"); |
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124 |
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125 retval = matrix (0, 0); |
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126 } |
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127 else |
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128 gripe_invalid_conversion ("real matrix", "complex scalar"); |
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129 |
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130 return retval; |
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131 } |
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132 |
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4513
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133 // XXX FIXME XXX |
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134 |
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135 ComplexMatrix |
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136 octave_matrix::complex_matrix_value (bool) const |
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137 { |
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138 return ComplexMatrix (matrix.matrix_value ()); |
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139 } |
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140 |
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141 streamoff_array |
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142 octave_matrix::streamoff_array_value (void) const |
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143 { |
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144 streamoff_array retval (dims ()); |
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145 |
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146 int nel = numel (); |
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147 |
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148 for (int i = 0; i < nel; i++) |
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149 { |
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150 double d = matrix(i); |
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151 |
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152 if (D_NINT (d) == d) |
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153 retval(i) = std::streamoff (static_cast<long> (d)); |
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154 else |
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155 { |
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156 error ("conversion to streamoff_array value failed"); |
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157 break; |
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158 } |
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159 } |
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160 |
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161 return retval; |
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162 } |
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163 |
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164 octave_value |
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165 octave_matrix::convert_to_str_internal (bool, bool) const |
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166 { |
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167 octave_value retval; |
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168 |
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169 int nr = matrix.rows (); |
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170 int nc = matrix.columns (); |
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171 |
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172 if (nr == 0 && nc == 0) |
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173 { |
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174 char s = '\0'; |
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175 retval = octave_value (&s); |
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176 } |
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177 else |
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178 { |
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179 if (nr == 0 || nc == 0) |
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180 { |
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181 char s = '\0'; |
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182 retval = octave_value (&s); |
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183 } |
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184 else |
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185 { |
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186 charMatrix chm (nr, nc); |
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187 |
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188 bool warned = false; |
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189 |
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190 for (int j = 0; j < nc; j++) |
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191 { |
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192 for (int i = 0; i < nr; i++) |
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193 { |
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194 OCTAVE_QUIT; |
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195 |
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196 double d = matrix (i, j); |
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197 |
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198 if (xisnan (d)) |
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199 { |
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200 ::error ("invalid conversion from NaN to character"); |
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201 return retval; |
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202 } |
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203 else |
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204 { |
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205 int ival = NINT (d); |
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206 |
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207 if (ival < 0 || ival > UCHAR_MAX) |
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208 { |
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209 // XXX FIXME XXX -- is there something |
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210 // better we could do? |
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211 |
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212 ival = 0; |
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213 |
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214 if (! warned) |
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215 { |
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216 ::warning ("range error for conversion to character value"); |
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217 warned = true; |
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218 } |
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219 } |
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220 |
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221 chm (i, j) = static_cast<char> (ival); |
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222 } |
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223 } |
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224 } |
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225 |
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226 retval = octave_value (chm, 1); |
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227 } |
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228 } |
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229 |
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230 return retval; |
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231 } |
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232 |
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233 static Matrix |
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234 strip_infnan (const Matrix& m) |
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235 { |
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236 int nr = m.rows (); |
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237 int nc = m.columns (); |
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238 |
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239 Matrix retval (nr, nc); |
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240 |
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241 int k = 0; |
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242 for (int i = 0; i < nr; i++) |
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243 { |
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244 for (int j = 0; j < nc; j++) |
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245 { |
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246 double d = m (i, j); |
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247 if (xisnan (d)) |
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248 goto next_row; |
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249 else |
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250 retval (k, j) = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
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251 } |
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252 k++; |
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253 |
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254 next_row: |
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255 continue; |
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256 } |
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257 |
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258 if (k > 0) |
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259 retval.resize (k, nc); |
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260 |
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261 return retval; |
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262 } |
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263 |
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264 bool |
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265 octave_matrix::save_ascii (std::ostream& os, bool& infnan_warned, |
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266 bool strip_nan_and_inf) |
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267 { |
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268 dim_vector d = dims (); |
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269 if (d.length () > 2) |
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270 { |
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271 NDArray tmp = array_value (); |
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272 |
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273 if (strip_nan_and_inf) |
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274 { |
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275 warning ("save: Can not strip Inf or NaN values"); |
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276 warning ("save: Inf or NaN values may not be reloadable"); |
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277 infnan_warned = true; |
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278 } |
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279 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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280 { |
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281 warning ("save: Inf or NaN values may not be reloadable"); |
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282 infnan_warned = true; |
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283 } |
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284 |
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285 os << "# ndims: " << d.length () << "\n"; |
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286 |
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287 for (int i=0; i < d.length (); i++) |
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288 os << " " << d (i); |
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289 |
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290 os << "\n" << tmp; |
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291 } |
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292 else |
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293 { |
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294 // Keep this case, rather than use generic code above for backward |
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295 // compatiability. Makes load_ascii much more complex!! |
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296 os << "# rows: " << rows () << "\n" |
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297 << "# columns: " << columns () << "\n"; |
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298 |
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299 Matrix tmp = matrix_value (); |
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300 |
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301 if (strip_nan_and_inf) |
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302 tmp = strip_infnan (tmp); |
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303 else if (! infnan_warned && tmp.any_element_is_inf_or_nan ()) |
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304 { |
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305 warning ("save: Inf or NaN values may not be reloadable"); |
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306 infnan_warned = true; |
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307 } |
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308 |
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309 os << tmp; |
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310 } |
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311 |
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312 return true; |
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313 } |
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314 |
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315 bool |
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316 octave_matrix::load_ascii (std::istream& is) |
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317 { |
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318 int mdims = 0; |
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319 bool success = true; |
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320 std::streampos pos = is.tellg (); |
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321 |
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322 if (extract_keyword (is, "ndims", mdims, true)) |
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323 { |
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324 if (mdims >= 0) |
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325 { |
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326 dim_vector dv; |
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327 dv.resize (mdims); |
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328 |
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329 for (int i = 0; i < mdims; i++) |
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330 is >> dv(i); |
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331 |
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332 NDArray tmp(dv); |
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333 is >> tmp; |
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334 |
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335 if (!is) |
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336 { |
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337 error ("load: failed to load matrix constant"); |
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338 success = false; |
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339 } |
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340 matrix = tmp; |
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341 } |
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342 else |
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343 { |
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344 error ("load: failed to extract number of rows and columns"); |
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345 success = false; |
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346 } |
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347 } |
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348 else |
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349 { |
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350 int nr = 0; |
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351 int nc = 0; |
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352 |
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353 // re-read the same line again |
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354 is.clear (); |
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355 is.seekg (pos); |
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356 |
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357 if (extract_keyword (is, "rows", nr) && nr >= 0 |
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358 && extract_keyword (is, "columns", nc) && nc >= 0) |
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359 { |
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360 if (nr > 0 && nc > 0) |
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361 { |
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362 Matrix tmp (nr, nc); |
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363 is >> tmp; |
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364 if (is) |
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365 matrix = tmp; |
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366 else |
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367 { |
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368 error ("load: failed to load matrix constant"); |
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369 success = false; |
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370 } |
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371 } |
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372 else if (nr == 0 || nc == 0) |
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373 matrix = Matrix (nr, nc); |
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374 else |
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375 panic_impossible (); |
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376 } |
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377 else |
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378 { |
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379 error ("load: failed to extract number of rows and columns"); |
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380 success = false; |
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381 } |
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382 } |
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383 |
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384 return success; |
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385 } |
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386 |
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387 bool |
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388 octave_matrix::save_binary (std::ostream& os, bool& save_as_floats) |
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389 { |
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390 |
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391 dim_vector d = dims (); |
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392 if (d.length() < 1) |
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393 return false; |
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394 |
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395 // Use negative value for ndims to differentiate with old format!! |
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396 FOUR_BYTE_INT tmp = - d.length(); |
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397 os.write (X_CAST (char *, &tmp), 4); |
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398 for (int i=0; i < d.length (); i++) |
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399 { |
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400 tmp = d(i); |
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401 os.write (X_CAST (char *, &tmp), 4); |
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402 } |
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403 |
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404 NDArray m = array_value (); |
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405 save_type st = LS_DOUBLE; |
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406 if (save_as_floats) |
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407 { |
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408 if (m.too_large_for_float ()) |
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409 { |
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410 warning ("save: some values too large to save as floats --"); |
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411 warning ("save: saving as doubles instead"); |
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412 } |
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413 else |
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414 st = LS_FLOAT; |
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415 } |
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416 else if (d.numel () > 8192) // XXX FIXME XXX -- make this configurable. |
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417 { |
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418 double max_val, min_val; |
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419 if (m.all_integers (max_val, min_val)) |
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420 st = get_save_type (max_val, min_val); |
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421 } |
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422 |
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423 const double *mtmp = m.data (); |
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424 write_doubles (os, mtmp, st, d.numel ()); |
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425 |
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426 return true; |
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427 } |
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428 |
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429 bool |
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430 octave_matrix::load_binary (std::istream& is, bool swap, |
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431 oct_mach_info::float_format fmt) |
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432 { |
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433 char tmp; |
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434 FOUR_BYTE_INT mdims; |
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435 if (! is.read (X_CAST (char *, &mdims), 4)) |
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436 return false; |
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437 if (swap) |
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438 swap_4_bytes (X_CAST (char *, &mdims)); |
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439 if (mdims < 0) |
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440 { |
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441 mdims = - mdims; |
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442 FOUR_BYTE_INT di; |
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443 dim_vector dv; |
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444 dv.resize (mdims); |
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445 |
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446 for (int i = 0; i < mdims; i++) |
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447 { |
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448 if (! is.read (X_CAST (char *, &di), 4)) |
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449 return false; |
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450 if (swap) |
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451 swap_4_bytes (X_CAST (char *, &di)); |
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452 dv(i) = di; |
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453 } |
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454 |
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455 if (! is.read (X_CAST (char *, &tmp), 1)) |
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456 return false; |
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457 |
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458 NDArray m(dv); |
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459 double *re = m.fortran_vec (); |
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460 read_doubles (is, re, X_CAST (save_type, tmp), dv.numel (), swap, fmt); |
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461 if (error_state || ! is) |
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462 return false; |
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463 matrix = m; |
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464 } |
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465 else |
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466 { |
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467 FOUR_BYTE_INT nr, nc; |
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468 nr = mdims; |
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469 if (! is.read (X_CAST (char *, &nc), 4)) |
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470 return false; |
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471 if (swap) |
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472 swap_4_bytes (X_CAST (char *, &nc)); |
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473 if (! is.read (X_CAST (char *, &tmp), 1)) |
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474 return false; |
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475 Matrix m (nr, nc); |
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476 double *re = m.fortran_vec (); |
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477 int len = nr * nc; |
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478 read_doubles (is, re, X_CAST (save_type, tmp), len, swap, fmt); |
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479 if (error_state || ! is) |
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480 return false; |
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481 matrix = m; |
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482 } |
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483 return true; |
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484 } |
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485 |
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486 #if defined (HAVE_HDF5) |
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487 bool |
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488 octave_matrix::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
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489 { |
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490 dim_vector d = dims (); |
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491 hsize_t hdims[d.length () > 2 ? d.length () : 3]; |
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492 hid_t space_hid = -1, data_hid = -1; |
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493 int rank = ( (d (0) == 1) && (d.length () == 2) ? 1 : d.length ()); |
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494 bool retval = true; |
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495 NDArray m = array_value (); |
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496 |
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497 // Octave uses column-major, while HDF5 uses row-major ordering |
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498 for (int i = 0, j = d.length() - 1; i < d.length (); i++, j--) |
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499 hdims[i] = d (j); |
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500 |
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501 space_hid = H5Screate_simple (rank, hdims, (hsize_t*) 0); |
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502 if (space_hid < 0) return false; |
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503 |
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504 hid_t save_type_hid = H5T_NATIVE_DOUBLE; |
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505 |
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506 if (save_as_floats) |
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507 { |
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508 if (m.too_large_for_float ()) |
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509 { |
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510 warning ("save: some values too large to save as floats --"); |
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511 warning ("save: saving as doubles instead"); |
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512 } |
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513 else |
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514 save_type_hid = H5T_NATIVE_FLOAT; |
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515 } |
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516 #if HAVE_HDF5_INT2FLOAT_CONVERSIONS |
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517 // hdf5 currently doesn't support float/integer conversions |
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518 else |
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519 { |
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520 double max_val, min_val; |
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521 |
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522 if (m.all_integers (max_val, min_val)) |
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523 save_type_hid |
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|
524 = save_type_to_hdf5 (get_save_type (max_val, min_val)); |
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525 } |
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|
526 #endif /* HAVE_HDF5_INT2FLOAT_CONVERSIONS */ |
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|
527 |
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|
528 data_hid = H5Dcreate (loc_id, name, save_type_hid, space_hid, |
|
|
529 H5P_DEFAULT); |
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530 if (data_hid < 0) |
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|
531 { |
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|
532 H5Sclose (space_hid); |
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533 return false; |
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|
534 } |
|
|
535 |
|
|
536 double *mtmp = m.fortran_vec (); |
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|
537 retval = H5Dwrite (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
|
538 H5P_DEFAULT, (void*) mtmp) >= 0; |
|
|
539 |
|
|
540 H5Dclose (data_hid); |
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|
541 H5Sclose (space_hid); |
|
|
542 return retval; |
|
|
543 } |
|
|
544 |
|
|
545 bool |
|
|
546 octave_matrix::load_hdf5 (hid_t loc_id, const char *name, |
|
|
547 bool /* have_h5giterate_bug */) |
|
|
548 { |
|
|
549 bool retval = false; |
|
|
550 hid_t data_hid = H5Dopen (loc_id, name); |
|
|
551 hid_t space_id = H5Dget_space (data_hid); |
|
|
552 |
|
|
553 hsize_t rank = H5Sget_simple_extent_ndims (space_id); |
|
|
554 |
|
|
555 if (rank < 1) |
|
|
556 { |
|
|
557 H5Sclose (space_id); |
|
|
558 H5Dclose (data_hid); |
|
|
559 return false; |
|
|
560 } |
|
|
561 |
|
|
562 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
|
|
563 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
|
|
564 |
|
|
565 H5Sget_simple_extent_dims (space_id, hdims, maxdims); |
|
|
566 |
|
|
567 dim_vector dv; |
|
|
568 |
|
|
569 // Octave uses column-major, while HDF5 uses row-major ordering |
|
|
570 if (rank == 1) |
|
|
571 { |
|
|
572 dv.resize (2); |
|
|
573 dv(0) = 1; |
|
|
574 dv(1) = hdims[0]; |
|
|
575 } |
|
|
576 else |
|
|
577 { |
|
|
578 dv.resize (rank); |
|
|
579 for (int i = 0, j = rank - 1; i < (int)rank; i++, j--) |
|
|
580 dv(j) = hdims[i]; |
|
|
581 } |
|
|
582 |
|
|
583 NDArray m (dv); |
|
|
584 double *re = m.fortran_vec (); |
|
|
585 if (H5Dread (data_hid, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL, |
|
|
586 H5P_DEFAULT, (void *) re) >= 0) |
|
|
587 { |
|
|
588 retval = true; |
|
|
589 matrix = m; |
|
|
590 } |
|
|
591 |
|
|
592 H5Sclose (space_id); |
|
|
593 H5Dclose (data_hid); |
|
|
594 return retval; |
|
|
595 } |
|
|
596 #endif |
|
|
597 |
|
4643
|
598 void |
|
|
599 octave_matrix::print_raw (std::ostream& os, |
|
|
600 bool pr_as_read_syntax) const |
|
|
601 { |
|
|
602 octave_print_internal (os, matrix, pr_as_read_syntax, |
|
|
603 current_print_indent_level ()); |
|
|
604 } |
|
|
605 |
|
2376
|
606 /* |
|
|
607 ;;; Local Variables: *** |
|
|
608 ;;; mode: C++ *** |
|
|
609 ;;; End: *** |
|
|
610 */ |
