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1960
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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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1960
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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2317
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28 #include <cctype> |
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29 |
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3503
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30 #include <iostream> |
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5760
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31 #include <vector> |
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32 |
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33 #include "byte-swap.h" |
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34 #include "data-conv.h" |
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35 #include "lo-error.h" |
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36 |
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5892
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37 template void swap_bytes<2> (volatile void *, int); |
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38 template void swap_bytes<4> (volatile void *, int); |
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39 template void swap_bytes<8> (volatile void *, int); |
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40 |
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4944
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41 #if defined HAVE_LONG_LONG_INT |
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42 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
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43 do \ |
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44 { \ |
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45 int sz = BITS / CHAR_BIT; \ |
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46 if (sizeof (TQ char) == sz) \ |
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47 VAL = oct_data_conv::dt_ ## Q ## char; \ |
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48 else if (sizeof (TQ short) == sz) \ |
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49 VAL = oct_data_conv::dt_ ## Q ## short; \ |
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50 else if (sizeof (TQ int) == sz) \ |
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51 VAL = oct_data_conv::dt_ ## Q ## int; \ |
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52 else if (sizeof (TQ long) == sz) \ |
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53 VAL = oct_data_conv::dt_ ## Q ## long; \ |
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54 else if (sizeof (TQ long long) == sz) \ |
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55 VAL = oct_data_conv::dt_ ## Q ## longlong; \ |
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56 else \ |
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57 VAL = oct_data_conv::dt_unknown; \ |
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58 } \ |
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59 while (0) |
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60 #else |
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3359
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61 #define FIND_SIZED_INT_TYPE(VAL, BITS, TQ, Q) \ |
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3358
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62 do \ |
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63 { \ |
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64 int sz = BITS / CHAR_BIT; \ |
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65 if (sizeof (TQ char) == sz) \ |
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66 VAL = oct_data_conv::dt_ ## Q ## char; \ |
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67 else if (sizeof (TQ short) == sz) \ |
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68 VAL = oct_data_conv::dt_ ## Q ## short; \ |
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69 else if (sizeof (TQ int) == sz) \ |
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70 VAL = oct_data_conv::dt_ ## Q ## int; \ |
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71 else if (sizeof (TQ long) == sz) \ |
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72 VAL = oct_data_conv::dt_ ## Q ## long; \ |
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73 else \ |
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74 VAL = oct_data_conv::dt_unknown; \ |
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75 } \ |
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76 while (0) |
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4944
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77 #endif |
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3358
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78 |
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3359
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79 #define FIND_SIZED_FLOAT_TYPE(VAL, BITS) \ |
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3358
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80 do \ |
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81 { \ |
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82 int sz = BITS / CHAR_BIT; \ |
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83 if (sizeof (float) == sz) \ |
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84 VAL = oct_data_conv::dt_float; \ |
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85 else if (sizeof (double) == sz) \ |
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86 VAL = oct_data_conv::dt_double; \ |
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87 else \ |
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88 VAL = oct_data_conv::dt_unknown; \ |
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89 } \ |
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90 while (0) |
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91 |
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92 // I'm not sure it is worth the trouble, but let's use a lookup table |
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93 // for the types that are supposed to be a specific number of bits |
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94 // wide. Given the macros above, this should work as long as CHAR_BIT |
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95 // is a multiple of 8 and there are types with the right sizes. |
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96 // |
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97 // The sized data type lookup table has the following format: |
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98 // |
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99 // bits |
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100 // +----+----+----+----+ |
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101 // | 8 | 16 | 32 | 64 | |
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102 // +----+----+----+----+ |
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103 // signed integer | | | | | |
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104 // +----+----+----+----+ |
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105 // unsigned integer | | | | | |
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106 // +----+----+----+----+ |
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107 // floating point | | | | | |
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108 // +----+----+----+----+ |
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109 // |
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110 // So, the 0,3 element is supposed to contain the oct_data_conv enum |
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111 // value corresponding to the correct native data type for a signed |
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112 // 32-bit integer. |
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113 |
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114 static void |
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115 init_sized_type_lookup_table (oct_data_conv::data_type table[3][4]) |
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116 { |
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117 int bits = 8; |
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118 |
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119 for (int i = 0; i < 4; i++) |
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120 { |
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121 FIND_SIZED_INT_TYPE (table[0][i], bits, , ); |
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122 |
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123 FIND_SIZED_INT_TYPE (table[1][i], bits, unsigned, u); |
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124 |
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125 FIND_SIZED_FLOAT_TYPE (table[2][i], bits); |
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126 |
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127 bits *= 2; |
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128 } |
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129 } |
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130 |
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4944
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131 static std::string |
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132 strip_spaces (const std::string& str) |
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133 { |
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134 int n = str.length (); |
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135 |
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136 int k = 0; |
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137 |
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138 std::string s (n, ' '); |
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139 |
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140 for (int i = 0; i < n; i++) |
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141 if (! isspace (str[i])) |
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142 s[k++] = tolower (str[i]); |
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143 |
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144 s.resize (k); |
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145 |
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146 return s; |
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147 } |
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148 |
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149 #define GET_SIZED_INT_TYPE(T, U) \ |
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150 do \ |
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151 { \ |
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152 switch (sizeof (T)) \ |
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153 { \ |
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154 case 1: \ |
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155 retval = dt_ ## U ## int8; \ |
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156 break; \ |
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157 \ |
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158 case 2: \ |
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159 retval = dt_ ## U ## int16; \ |
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160 break; \ |
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161 \ |
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162 case 4: \ |
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163 retval = dt_ ## U ## int32; \ |
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164 break; \ |
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165 \ |
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166 case 8: \ |
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167 retval = dt_ ## U ## int64; \ |
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168 break; \ |
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169 \ |
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170 default: \ |
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171 retval = dt_unknown; \ |
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172 break; \ |
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173 } \ |
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174 } \ |
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175 while (0) |
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176 |
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2317
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177 oct_data_conv::data_type |
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3504
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178 oct_data_conv::string_to_data_type (const std::string& str) |
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2317
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179 { |
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180 data_type retval = dt_unknown; |
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181 |
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3358
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182 static bool initialized = false; |
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183 |
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184 static data_type sized_type_table[3][4]; |
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185 |
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3358
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186 if (! initialized) |
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187 { |
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188 init_sized_type_lookup_table (sized_type_table); |
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189 |
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190 initialized = true; |
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191 } |
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192 |
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4944
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193 std::string s = strip_spaces (str); |
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194 |
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4944
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195 if (s == "int8" || s == "integer*1") |
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196 retval = dt_int8; |
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197 else if (s == "uint8") |
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198 retval = dt_uint8; |
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199 else if (s == "int16" || s == "integer*2") |
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200 retval = dt_int16; |
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201 else if (s == "uint16") |
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202 retval = dt_uint16; |
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203 else if (s == "int32" || s == "integer*4") |
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204 retval = dt_int32; |
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205 else if (s == "uint32") |
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206 retval = dt_uint32; |
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207 else if (s == "int64" || s == "integer*8") |
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208 retval = dt_int64; |
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209 else if (s == "uint64") |
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210 retval = dt_uint64; |
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211 else if (s == "single" || s == "float32" || s == "real*4") |
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212 retval = dt_single; |
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213 else if (s == "double" || s == "float64" || s == "real*8") |
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214 retval = dt_double; |
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215 else if (s == "char" || s == "char*1") |
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216 retval = dt_char; |
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217 else if (s == "schar" || s == "signedchar") |
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218 retval = dt_schar; |
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219 else if (s == "uchar" || s == "unsignedchar") |
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220 retval = dt_uchar; |
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221 else if (s == "short") |
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4944
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222 GET_SIZED_INT_TYPE (short, ); |
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2317
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223 else if (s == "ushort" || s == "unsignedshort") |
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4944
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224 GET_SIZED_INT_TYPE (unsigned short, u); |
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2317
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225 else if (s == "int") |
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4944
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226 GET_SIZED_INT_TYPE (int, ); |
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2317
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227 else if (s == "uint" || s == "unsignedint") |
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4944
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228 GET_SIZED_INT_TYPE (unsigned int, u); |
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2317
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229 else if (s == "long") |
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4944
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230 GET_SIZED_INT_TYPE (long, ); |
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2317
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231 else if (s == "ulong" || s == "unsignedlong") |
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4944
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232 GET_SIZED_INT_TYPE (unsigned long, u); |
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233 else if (s == "longlong") |
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234 GET_SIZED_INT_TYPE (long long, ); |
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235 else if (s == "ulonglong" || s == "unsignedlonglong") |
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236 GET_SIZED_INT_TYPE (unsigned long long, u); |
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3358
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237 else if (s == "float") |
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4944
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238 { |
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239 if (sizeof (float) == sizeof (double)) |
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240 retval = dt_double; |
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241 else |
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242 retval = dt_single; |
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243 } |
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4970
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244 else if (s == "logical") |
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245 retval = dt_logical; |
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2317
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246 else |
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247 (*current_liboctave_error_handler) ("invalid data type specified"); |
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248 |
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3358
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249 if (retval == dt_unknown) |
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250 (*current_liboctave_error_handler) |
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251 ("unable to find matching native data type for %s", s.c_str ()); |
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252 |
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2317
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253 return retval; |
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254 } |
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255 |
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4944
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256 void |
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257 oct_data_conv::string_to_data_type |
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258 (const std::string& str, int& block_size, |
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259 oct_data_conv::data_type& input_type, |
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260 oct_data_conv::data_type& output_type) |
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261 { |
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262 block_size = 1; |
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263 input_type = dt_uchar; |
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264 output_type = dt_double; |
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265 |
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266 bool input_is_output = false; |
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267 |
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268 std::string s = strip_spaces (str); |
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269 |
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270 size_t pos = 0; |
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271 |
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272 if (s[0] == '*') |
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273 input_is_output = true; |
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274 else |
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275 { |
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276 size_t len = s.length (); |
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277 |
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278 while (pos < len && isdigit (s[pos])) |
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279 pos++; |
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280 |
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281 if (pos > 0) |
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282 { |
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283 if (s[pos] == '*') |
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284 { |
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285 block_size = atoi (s.c_str ()); |
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286 s = s.substr (pos+1); |
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287 } |
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288 else |
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289 { |
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290 (*current_liboctave_error_handler) |
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291 ("invalid repeat count in `%s'", str.c_str ()); |
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292 |
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293 return; |
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294 } |
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295 } |
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296 } |
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297 |
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298 pos = s.find ('='); |
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299 |
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300 if (pos != std::string::npos) |
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301 { |
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302 if (s[pos+1] == '>') |
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303 { |
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5870
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304 std::string s1; |
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305 |
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4944
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306 if (input_is_output) |
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307 { |
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308 input_is_output = false; |
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309 |
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5870
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310 s1 = s.substr (1, pos-1); |
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311 |
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4944
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312 (*current_liboctave_warning_handler) |
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313 ("warning: ignoring leading * in fread precision"); |
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314 } |
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5870
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315 else |
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316 s1 = s.substr (0, pos); |
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4944
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317 |
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5870
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318 input_type = string_to_data_type (s1); |
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4944
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319 output_type = string_to_data_type (s.substr (pos+2)); |
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320 } |
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321 else |
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322 (*current_liboctave_error_handler) |
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323 ("fread: invalid precision specified"); |
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324 } |
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325 else |
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326 { |
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5870
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327 if (input_is_output) |
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328 s = s.substr (1); |
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329 |
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4944
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330 input_type = string_to_data_type (s); |
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331 |
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332 if (input_is_output) |
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333 output_type = input_type; |
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334 } |
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335 } |
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336 |
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337 void |
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338 oct_data_conv::string_to_data_type |
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339 (const std::string& str, int& block_size, |
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340 oct_data_conv::data_type& output_type) |
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341 { |
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342 block_size = 1; |
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343 output_type = dt_double; |
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344 |
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345 std::string s = strip_spaces (str); |
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346 |
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347 size_t pos = 0; |
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348 |
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349 size_t len = s.length (); |
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350 |
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351 while (pos < len && isdigit (s[pos])) |
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352 pos++; |
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353 |
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354 if (pos > 0) |
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355 { |
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356 if (s[pos] == '*') |
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357 { |
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358 block_size = atoi (s.c_str ()); |
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359 s = s.substr (pos+1); |
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360 } |
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361 else |
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362 { |
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363 (*current_liboctave_error_handler) |
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364 ("invalid repeat count in `%s'", str.c_str ()); |
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365 |
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366 return; |
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367 } |
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368 } |
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369 |
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370 output_type = string_to_data_type (s); |
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371 } |
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372 |
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373 std::string |
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374 oct_data_conv::data_type_as_string (oct_data_conv::data_type dt) |
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375 { |
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376 std::string retval; |
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377 |
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378 switch (dt) |
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379 { |
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380 case oct_data_conv::dt_int8: |
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381 retval = "int8"; |
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382 break; |
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383 |
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384 case oct_data_conv::dt_uint8: |
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385 retval = "uint8"; |
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386 break; |
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387 |
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388 case oct_data_conv::dt_int16: |
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389 retval = "int16"; |
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390 break; |
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391 |
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392 case oct_data_conv::dt_uint16: |
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393 retval = "uint16"; |
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394 break; |
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395 |
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396 case oct_data_conv::dt_int32: |
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397 retval = "int32"; |
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398 break; |
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399 |
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400 case oct_data_conv::dt_uint32: |
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401 retval = "uint32"; |
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402 break; |
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403 |
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404 case oct_data_conv::dt_int64: |
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405 retval = "int64"; |
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406 break; |
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407 |
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408 case oct_data_conv::dt_uint64: |
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409 retval = "uint64"; |
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410 break; |
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411 |
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412 case oct_data_conv::dt_single: |
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413 retval = "single"; |
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414 break; |
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415 |
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416 case oct_data_conv::dt_double: |
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417 retval = "double"; |
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418 break; |
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419 |
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420 case oct_data_conv::dt_char: |
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421 retval = "char"; |
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422 break; |
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423 |
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424 case oct_data_conv::dt_schar: |
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425 retval = "signed char"; |
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426 break; |
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427 |
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428 case oct_data_conv::dt_uchar: |
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429 retval = "usigned char"; |
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430 break; |
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431 |
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432 case oct_data_conv::dt_short: |
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433 retval = "short"; |
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434 break; |
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435 |
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436 case oct_data_conv::dt_ushort: |
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437 retval = "unsigned short"; |
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438 break; |
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439 |
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440 case oct_data_conv::dt_int: |
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441 retval = "int"; |
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442 break; |
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443 |
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444 case oct_data_conv::dt_uint: |
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445 retval = "usigned int"; |
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446 break; |
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447 |
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448 case oct_data_conv::dt_long: |
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449 retval = "long"; |
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450 break; |
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451 |
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452 case oct_data_conv::dt_ulong: |
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453 retval = "usigned long"; |
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454 break; |
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455 |
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456 case oct_data_conv::dt_longlong: |
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457 retval = "long long"; |
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458 break; |
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459 |
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460 case oct_data_conv::dt_ulonglong: |
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461 retval = "unsigned long long"; |
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462 break; |
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463 |
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464 case oct_data_conv::dt_float: |
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465 retval = "float"; |
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466 break; |
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467 |
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4970
|
468 case oct_data_conv::dt_logical: |
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469 retval = "logical"; |
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470 break; |
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471 |
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4944
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472 case oct_data_conv::dt_unknown: |
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473 default: |
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474 retval = "unknown"; |
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475 break; |
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476 } |
|
|
477 |
|
|
478 return retval; |
|
|
479 } |
|
1960
|
480 |
|
3359
|
481 #define LS_DO_READ(TYPE, swap, data, size, len, stream) \ |
|
1960
|
482 do \ |
|
|
483 { \ |
|
3867
|
484 if (len > 0) \ |
|
|
485 { \ |
|
5760
|
486 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
|
|
487 stream.read (reinterpret_cast<char *> (ptr), size * len); \ |
|
3867
|
488 if (swap) \ |
|
4944
|
489 swap_bytes< size > (ptr, len); \ |
|
5760
|
490 for (int i = 0; i < len; i++) \ |
|
3867
|
491 data[i] = ptr[i]; \ |
|
|
492 } \ |
|
1960
|
493 } \ |
|
|
494 while (0) |
|
|
495 |
|
|
496 // Have to use copy here to avoid writing over data accessed via |
|
|
497 // Matrix::data(). |
|
|
498 |
|
3359
|
499 #define LS_DO_WRITE(TYPE, data, size, len, stream) \ |
|
1960
|
500 do \ |
|
|
501 { \ |
|
3867
|
502 if (len > 0) \ |
|
|
503 { \ |
|
5760
|
504 char tmp_type = type; \ |
|
3867
|
505 stream.write (&tmp_type, 1); \ |
|
5760
|
506 OCTAVE_LOCAL_BUFFER (TYPE, ptr, len); \ |
|
3867
|
507 for (int i = 0; i < len; i++) \ |
|
5760
|
508 ptr[i] = static_cast <TYPE> (data[i]); \ |
|
|
509 stream.write (reinterpret_cast<char *> (ptr), size * len); \ |
|
3867
|
510 } \ |
|
1960
|
511 } \ |
|
|
512 while (0) |
|
|
513 |
|
|
514 // Loading variables from files. |
|
|
515 |
|
|
516 static void |
|
|
517 gripe_unrecognized_float_fmt (void) |
|
|
518 { |
|
|
519 (*current_liboctave_error_handler) |
|
|
520 ("unrecognized floating point format requested"); |
|
|
521 } |
|
|
522 |
|
|
523 static void |
|
|
524 gripe_data_conversion (const char *from, const char *to) |
|
|
525 { |
|
|
526 (*current_liboctave_error_handler) |
|
|
527 ("unable to convert from %s to %s format", from, to); |
|
|
528 } |
|
|
529 |
|
|
530 // But first, some data conversion routines. |
|
|
531 |
|
|
532 // Currently, we only handle conversions for the IEEE types. To fix |
|
|
533 // that, make more of the following routines work. |
|
|
534 |
|
5775
|
535 // FIXME -- assumes sizeof (Complex) == 8 |
|
|
536 // FIXME -- assumes sizeof (double) == 8 |
|
|
537 // FIXME -- assumes sizeof (float) == 4 |
|
1960
|
538 |
|
|
539 static void |
|
4944
|
540 IEEE_big_double_to_IEEE_little_double (void *d, int len) |
|
1960
|
541 { |
|
4944
|
542 swap_bytes<8> (d, len); |
|
1960
|
543 } |
|
|
544 |
|
|
545 static void |
|
4944
|
546 VAX_D_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
547 { |
|
|
548 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
549 } |
|
|
550 |
|
|
551 static void |
|
4944
|
552 VAX_G_double_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
553 { |
|
|
554 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
555 } |
|
|
556 |
|
|
557 static void |
|
4944
|
558 Cray_to_IEEE_little_double (void * /* d */, int /* len */) |
|
1960
|
559 { |
|
|
560 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
561 } |
|
|
562 |
|
|
563 static void |
|
4944
|
564 IEEE_big_float_to_IEEE_little_float (void *d, int len) |
|
1960
|
565 { |
|
4944
|
566 swap_bytes<4> (d, len); |
|
1960
|
567 } |
|
|
568 |
|
|
569 static void |
|
4944
|
570 VAX_D_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
571 { |
|
|
572 gripe_data_conversion ("VAX D float", "IEEE little endian format"); |
|
|
573 } |
|
|
574 |
|
|
575 static void |
|
4944
|
576 VAX_G_float_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
577 { |
|
|
578 gripe_data_conversion ("VAX G float", "IEEE little endian format"); |
|
|
579 } |
|
|
580 |
|
|
581 static void |
|
4944
|
582 Cray_to_IEEE_little_float (void * /* d */, int /* len */) |
|
1960
|
583 { |
|
|
584 gripe_data_conversion ("Cray", "IEEE little endian format"); |
|
|
585 } |
|
|
586 |
|
|
587 static void |
|
4944
|
588 IEEE_little_double_to_IEEE_big_double (void *d, int len) |
|
1960
|
589 { |
|
4944
|
590 swap_bytes<8> (d, len); |
|
1960
|
591 } |
|
|
592 |
|
|
593 static void |
|
4944
|
594 VAX_D_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
595 { |
|
|
596 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
597 } |
|
|
598 |
|
|
599 static void |
|
4944
|
600 VAX_G_double_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
601 { |
|
|
602 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
603 } |
|
|
604 |
|
|
605 static void |
|
4944
|
606 Cray_to_IEEE_big_double (void * /* d */, int /* len */) |
|
1960
|
607 { |
|
|
608 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
609 } |
|
|
610 |
|
|
611 static void |
|
4944
|
612 IEEE_little_float_to_IEEE_big_float (void *d, int len) |
|
1960
|
613 { |
|
4944
|
614 swap_bytes<4> (d, len); |
|
1960
|
615 } |
|
|
616 |
|
|
617 static void |
|
4944
|
618 VAX_D_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
619 { |
|
|
620 gripe_data_conversion ("VAX D float", "IEEE big endian format"); |
|
|
621 } |
|
|
622 |
|
|
623 static void |
|
4944
|
624 VAX_G_float_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
625 { |
|
|
626 gripe_data_conversion ("VAX G float", "IEEE big endian format"); |
|
|
627 } |
|
|
628 |
|
|
629 static void |
|
4944
|
630 Cray_to_IEEE_big_float (void * /* d */, int /* len */) |
|
1960
|
631 { |
|
|
632 gripe_data_conversion ("Cray", "IEEE big endian format"); |
|
|
633 } |
|
|
634 |
|
|
635 static void |
|
4944
|
636 IEEE_little_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
637 { |
|
|
638 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
639 } |
|
|
640 |
|
|
641 static void |
|
4944
|
642 IEEE_big_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
643 { |
|
|
644 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
645 } |
|
|
646 |
|
|
647 static void |
|
4944
|
648 VAX_G_double_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
649 { |
|
|
650 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
651 } |
|
|
652 |
|
|
653 static void |
|
4944
|
654 Cray_to_VAX_D_double (void * /* d */, int /* len */) |
|
1960
|
655 { |
|
|
656 gripe_data_conversion ("Cray", "VAX D"); |
|
|
657 } |
|
|
658 |
|
|
659 static void |
|
4944
|
660 IEEE_little_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
661 { |
|
|
662 gripe_data_conversion ("IEEE little endian", "VAX D"); |
|
|
663 } |
|
|
664 |
|
|
665 static void |
|
4944
|
666 IEEE_big_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
667 { |
|
|
668 gripe_data_conversion ("IEEE big endian", "VAX D"); |
|
|
669 } |
|
|
670 |
|
|
671 static void |
|
4944
|
672 VAX_G_float_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
673 { |
|
|
674 gripe_data_conversion ("VAX G float", "VAX D"); |
|
|
675 } |
|
|
676 |
|
|
677 static void |
|
4944
|
678 Cray_to_VAX_D_float (void * /* d */, int /* len */) |
|
1960
|
679 { |
|
|
680 gripe_data_conversion ("Cray", "VAX D"); |
|
|
681 } |
|
|
682 |
|
|
683 static void |
|
4944
|
684 IEEE_little_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
685 { |
|
|
686 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
687 } |
|
|
688 |
|
|
689 static void |
|
4944
|
690 IEEE_big_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
691 { |
|
|
692 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
693 } |
|
|
694 |
|
|
695 static void |
|
4944
|
696 VAX_D_double_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
697 { |
|
|
698 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
699 } |
|
|
700 |
|
|
701 static void |
|
4944
|
702 Cray_to_VAX_G_double (void * /* d */, int /* len */) |
|
1960
|
703 { |
|
|
704 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
705 } |
|
|
706 |
|
|
707 static void |
|
4944
|
708 IEEE_little_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
709 { |
|
|
710 gripe_data_conversion ("IEEE little endian", "VAX G"); |
|
|
711 } |
|
|
712 |
|
|
713 static void |
|
4944
|
714 IEEE_big_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
715 { |
|
|
716 gripe_data_conversion ("IEEE big endian", "VAX G"); |
|
|
717 } |
|
|
718 |
|
|
719 static void |
|
4944
|
720 VAX_D_float_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
721 { |
|
|
722 gripe_data_conversion ("VAX D float", "VAX G"); |
|
|
723 } |
|
|
724 |
|
|
725 static void |
|
4944
|
726 Cray_to_VAX_G_float (void * /* d */, int /* len */) |
|
1960
|
727 { |
|
|
728 gripe_data_conversion ("VAX G float", "VAX G"); |
|
|
729 } |
|
|
730 |
|
|
731 void |
|
4944
|
732 do_double_format_conversion (void *data, int len, |
|
|
733 oct_mach_info::float_format from_fmt, |
|
|
734 oct_mach_info::float_format to_fmt) |
|
1960
|
735 { |
|
4944
|
736 switch (to_fmt) |
|
1960
|
737 { |
|
4574
|
738 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
739 switch (from_fmt) |
|
1960
|
740 { |
|
4574
|
741 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
742 break; |
|
|
743 |
|
4574
|
744 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
745 IEEE_big_double_to_IEEE_little_double (data, len); |
|
|
746 break; |
|
|
747 |
|
4574
|
748 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
749 VAX_D_double_to_IEEE_little_double (data, len); |
|
|
750 break; |
|
|
751 |
|
4574
|
752 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
753 VAX_G_double_to_IEEE_little_double (data, len); |
|
|
754 break; |
|
|
755 |
|
4574
|
756 case oct_mach_info::flt_fmt_cray: |
|
1960
|
757 Cray_to_IEEE_little_double (data, len); |
|
|
758 break; |
|
|
759 |
|
|
760 default: |
|
|
761 gripe_unrecognized_float_fmt (); |
|
|
762 break; |
|
|
763 } |
|
|
764 break; |
|
|
765 |
|
4574
|
766 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
767 switch (from_fmt) |
|
1960
|
768 { |
|
4574
|
769 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
770 IEEE_little_double_to_IEEE_big_double (data, len); |
|
|
771 break; |
|
|
772 |
|
4574
|
773 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
774 break; |
|
|
775 |
|
4574
|
776 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
777 VAX_D_double_to_IEEE_big_double (data, len); |
|
|
778 break; |
|
|
779 |
|
4574
|
780 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
781 VAX_G_double_to_IEEE_big_double (data, len); |
|
|
782 break; |
|
|
783 |
|
4574
|
784 case oct_mach_info::flt_fmt_cray: |
|
1960
|
785 Cray_to_IEEE_big_double (data, len); |
|
|
786 break; |
|
|
787 |
|
|
788 default: |
|
|
789 gripe_unrecognized_float_fmt (); |
|
|
790 break; |
|
|
791 } |
|
|
792 break; |
|
|
793 |
|
4574
|
794 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
795 switch (from_fmt) |
|
1960
|
796 { |
|
4574
|
797 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
798 IEEE_little_double_to_VAX_D_double (data, len); |
|
|
799 break; |
|
|
800 |
|
4574
|
801 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
802 IEEE_big_double_to_VAX_D_double (data, len); |
|
|
803 break; |
|
|
804 |
|
4574
|
805 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
806 break; |
|
|
807 |
|
4574
|
808 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
809 VAX_G_double_to_VAX_D_double (data, len); |
|
|
810 break; |
|
|
811 |
|
4574
|
812 case oct_mach_info::flt_fmt_cray: |
|
1960
|
813 Cray_to_VAX_D_double (data, len); |
|
|
814 break; |
|
|
815 |
|
|
816 default: |
|
|
817 gripe_unrecognized_float_fmt (); |
|
|
818 break; |
|
|
819 } |
|
|
820 break; |
|
|
821 |
|
4574
|
822 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
823 switch (from_fmt) |
|
1960
|
824 { |
|
4574
|
825 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
826 IEEE_little_double_to_VAX_G_double (data, len); |
|
|
827 break; |
|
|
828 |
|
4574
|
829 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
830 IEEE_big_double_to_VAX_G_double (data, len); |
|
|
831 break; |
|
|
832 |
|
4574
|
833 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
834 VAX_D_double_to_VAX_G_double (data, len); |
|
|
835 break; |
|
|
836 |
|
4574
|
837 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
838 break; |
|
|
839 |
|
4574
|
840 case oct_mach_info::flt_fmt_cray: |
|
1960
|
841 Cray_to_VAX_G_double (data, len); |
|
|
842 break; |
|
|
843 |
|
|
844 default: |
|
|
845 gripe_unrecognized_float_fmt (); |
|
|
846 break; |
|
|
847 } |
|
|
848 break; |
|
|
849 |
|
|
850 default: |
|
|
851 (*current_liboctave_error_handler) |
|
|
852 ("impossible state reached in file `%s' at line %d", |
|
|
853 __FILE__, __LINE__); |
|
|
854 break; |
|
|
855 } |
|
|
856 } |
|
|
857 |
|
|
858 void |
|
4944
|
859 do_float_format_conversion (void *data, int len, |
|
|
860 oct_mach_info::float_format from_fmt, |
|
|
861 oct_mach_info::float_format to_fmt) |
|
1960
|
862 { |
|
4944
|
863 switch (to_fmt) |
|
1960
|
864 { |
|
4574
|
865 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
4944
|
866 switch (from_fmt) |
|
1960
|
867 { |
|
4574
|
868 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
869 break; |
|
|
870 |
|
4574
|
871 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
872 IEEE_big_float_to_IEEE_little_float (data, len); |
|
|
873 break; |
|
|
874 |
|
4574
|
875 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
876 VAX_D_float_to_IEEE_little_float (data, len); |
|
|
877 break; |
|
|
878 |
|
4574
|
879 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
880 VAX_G_float_to_IEEE_little_float (data, len); |
|
|
881 break; |
|
|
882 |
|
4574
|
883 case oct_mach_info::flt_fmt_cray: |
|
1960
|
884 Cray_to_IEEE_little_float (data, len); |
|
|
885 break; |
|
|
886 |
|
|
887 default: |
|
|
888 gripe_unrecognized_float_fmt (); |
|
|
889 break; |
|
|
890 } |
|
|
891 break; |
|
|
892 |
|
4574
|
893 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
4944
|
894 switch (from_fmt) |
|
1960
|
895 { |
|
4574
|
896 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
897 IEEE_little_float_to_IEEE_big_float (data, len); |
|
|
898 break; |
|
|
899 |
|
4574
|
900 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
901 break; |
|
|
902 |
|
4574
|
903 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
904 VAX_D_float_to_IEEE_big_float (data, len); |
|
|
905 break; |
|
|
906 |
|
4574
|
907 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
908 VAX_G_float_to_IEEE_big_float (data, len); |
|
|
909 break; |
|
|
910 |
|
4574
|
911 case oct_mach_info::flt_fmt_cray: |
|
1960
|
912 Cray_to_IEEE_big_float (data, len); |
|
|
913 break; |
|
|
914 |
|
|
915 default: |
|
|
916 gripe_unrecognized_float_fmt (); |
|
|
917 break; |
|
|
918 } |
|
|
919 break; |
|
|
920 |
|
4574
|
921 case oct_mach_info::flt_fmt_vax_d: |
|
4944
|
922 switch (from_fmt) |
|
1960
|
923 { |
|
4574
|
924 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
925 IEEE_little_float_to_VAX_D_float (data, len); |
|
|
926 break; |
|
|
927 |
|
4574
|
928 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
929 IEEE_big_float_to_VAX_D_float (data, len); |
|
|
930 break; |
|
|
931 |
|
4574
|
932 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
933 break; |
|
|
934 |
|
4574
|
935 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
936 VAX_G_float_to_VAX_D_float (data, len); |
|
|
937 break; |
|
|
938 |
|
4574
|
939 case oct_mach_info::flt_fmt_cray: |
|
1960
|
940 Cray_to_VAX_D_float (data, len); |
|
|
941 break; |
|
|
942 |
|
|
943 default: |
|
|
944 gripe_unrecognized_float_fmt (); |
|
|
945 break; |
|
|
946 } |
|
|
947 break; |
|
|
948 |
|
4574
|
949 case oct_mach_info::flt_fmt_vax_g: |
|
4944
|
950 switch (from_fmt) |
|
1960
|
951 { |
|
4574
|
952 case oct_mach_info::flt_fmt_ieee_little_endian: |
|
1960
|
953 IEEE_little_float_to_VAX_G_float (data, len); |
|
|
954 break; |
|
|
955 |
|
4574
|
956 case oct_mach_info::flt_fmt_ieee_big_endian: |
|
1960
|
957 IEEE_big_float_to_VAX_G_float (data, len); |
|
|
958 break; |
|
|
959 |
|
4574
|
960 case oct_mach_info::flt_fmt_vax_d: |
|
1960
|
961 VAX_D_float_to_VAX_G_float (data, len); |
|
|
962 break; |
|
|
963 |
|
4574
|
964 case oct_mach_info::flt_fmt_vax_g: |
|
1960
|
965 break; |
|
|
966 |
|
4574
|
967 case oct_mach_info::flt_fmt_cray: |
|
1960
|
968 Cray_to_VAX_G_float (data, len); |
|
|
969 break; |
|
|
970 |
|
|
971 default: |
|
|
972 gripe_unrecognized_float_fmt (); |
|
|
973 break; |
|
|
974 } |
|
|
975 break; |
|
|
976 |
|
|
977 default: |
|
|
978 (*current_liboctave_error_handler) |
|
|
979 ("impossible state reached in file `%s' at line %d", |
|
|
980 __FILE__, __LINE__); |
|
|
981 break; |
|
|
982 } |
|
|
983 } |
|
|
984 |
|
|
985 void |
|
4944
|
986 do_float_format_conversion (void *data, size_t sz, int len, |
|
|
987 oct_mach_info::float_format from_fmt, |
|
|
988 oct_mach_info::float_format to_fmt) |
|
|
989 { |
|
|
990 switch (sz) |
|
|
991 { |
|
|
992 case sizeof (float): |
|
|
993 do_float_format_conversion (data, len, from_fmt, to_fmt); |
|
|
994 break; |
|
|
995 |
|
|
996 case sizeof (double): |
|
|
997 do_double_format_conversion (data, len, from_fmt, to_fmt); |
|
|
998 break; |
|
|
999 |
|
|
1000 default: |
|
|
1001 (*current_liboctave_error_handler) |
|
|
1002 ("impossible state reached in file `%s' at line %d", |
|
|
1003 __FILE__, __LINE__); |
|
|
1004 break; |
|
|
1005 } |
|
|
1006 } |
|
|
1007 |
|
|
1008 |
|
|
1009 void |
|
3504
|
1010 read_doubles (std::istream& is, double *data, save_type type, int len, |
|
4944
|
1011 bool swap, oct_mach_info::float_format fmt) |
|
1960
|
1012 { |
|
|
1013 switch (type) |
|
|
1014 { |
|
|
1015 case LS_U_CHAR: |
|
5828
|
1016 LS_DO_READ (uint8_t, swap, data, 1, len, is); |
|
1960
|
1017 break; |
|
|
1018 |
|
|
1019 case LS_U_SHORT: |
|
5828
|
1020 LS_DO_READ (uint16_t, swap, data, 2, len, is); |
|
1960
|
1021 break; |
|
|
1022 |
|
|
1023 case LS_U_INT: |
|
5828
|
1024 LS_DO_READ (uint32_t, swap, data, 4, len, is); |
|
1960
|
1025 break; |
|
|
1026 |
|
|
1027 case LS_CHAR: |
|
5828
|
1028 LS_DO_READ (int8_t, swap, data, 1, len, is); |
|
1960
|
1029 break; |
|
|
1030 |
|
|
1031 case LS_SHORT: |
|
5828
|
1032 LS_DO_READ (int16_t, swap, data, 2, len, is); |
|
1960
|
1033 break; |
|
|
1034 |
|
|
1035 case LS_INT: |
|
5828
|
1036 LS_DO_READ (int32_t, swap, data, 4, len, is); |
|
1960
|
1037 break; |
|
|
1038 |
|
|
1039 case LS_FLOAT: |
|
|
1040 { |
|
5760
|
1041 OCTAVE_LOCAL_BUFFER (float, ptr, len); |
|
|
1042 is.read (reinterpret_cast<char *> (ptr), 4 * len); |
|
|
1043 do_float_format_conversion (ptr, len, fmt); |
|
|
1044 for (int i = 0; i < len; i++) |
|
1960
|
1045 data[i] = ptr[i]; |
|
|
1046 } |
|
|
1047 break; |
|
|
1048 |
|
3359
|
1049 case LS_DOUBLE: // No conversion necessary. |
|
5760
|
1050 is.read (reinterpret_cast<char *> (data), 8 * len); |
|
1960
|
1051 do_double_format_conversion (data, len, fmt); |
|
|
1052 break; |
|
|
1053 |
|
|
1054 default: |
|
3504
|
1055 is.clear (std::ios::failbit|is.rdstate ()); |
|
1960
|
1056 break; |
|
|
1057 } |
|
|
1058 } |
|
|
1059 |
|
|
1060 void |
|
3504
|
1061 write_doubles (std::ostream& os, const double *data, save_type type, int len) |
|
1960
|
1062 { |
|
|
1063 switch (type) |
|
|
1064 { |
|
|
1065 case LS_U_CHAR: |
|
5828
|
1066 LS_DO_WRITE (uint8_t, data, 1, len, os); |
|
1960
|
1067 break; |
|
|
1068 |
|
|
1069 case LS_U_SHORT: |
|
5828
|
1070 LS_DO_WRITE (uint16_t, data, 2, len, os); |
|
1960
|
1071 break; |
|
|
1072 |
|
|
1073 case LS_U_INT: |
|
5828
|
1074 LS_DO_WRITE (uint32_t, data, 4, len, os); |
|
1960
|
1075 break; |
|
|
1076 |
|
|
1077 case LS_CHAR: |
|
5828
|
1078 LS_DO_WRITE (int8_t, data, 1, len, os); |
|
1960
|
1079 break; |
|
|
1080 |
|
|
1081 case LS_SHORT: |
|
5828
|
1082 LS_DO_WRITE (int16_t, data, 2, len, os); |
|
1960
|
1083 break; |
|
|
1084 |
|
|
1085 case LS_INT: |
|
5828
|
1086 LS_DO_WRITE (int32_t, data, 4, len, os); |
|
1960
|
1087 break; |
|
|
1088 |
|
|
1089 case LS_FLOAT: |
|
|
1090 LS_DO_WRITE (float, data, 4, len, os); |
|
|
1091 break; |
|
|
1092 |
|
3359
|
1093 case LS_DOUBLE: // No conversion necessary. |
|
1960
|
1094 { |
|
5760
|
1095 char tmp_type = static_cast<char> (type); |
|
1960
|
1096 os.write (&tmp_type, 1); |
|
5760
|
1097 os.write (reinterpret_cast <const char *> (data), 8 * len); |
|
1960
|
1098 } |
|
|
1099 break; |
|
|
1100 |
|
|
1101 default: |
|
|
1102 (*current_liboctave_error_handler) |
|
|
1103 ("unrecognized data format requested"); |
|
|
1104 break; |
|
|
1105 } |
|
|
1106 } |
|
|
1107 |
|
|
1108 /* |
|
|
1109 ;;; Local Variables: *** |
|
|
1110 ;;; mode: C++ *** |
|
|
1111 ;;; End: *** |
|
|
1112 */ |
