Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/PixelTraits.h @ 5838:4b47151dea4c
fix crashes if handling very large images
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 16 Oct 2024 18:27:31 +0200 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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8 * |
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9 * This program is free software: you can redistribute it and/or |
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10 * modify it under the terms of the GNU Lesser General Public License |
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11 * as published by the Free Software Foundation, either version 3 of |
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12 * the License, or (at your option) any later version. |
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13 * |
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14 * This program is distributed in the hope that it will be useful, but |
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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17 * Lesser General Public License for more details. |
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18 * |
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19 * You should have received a copy of the GNU Lesser General Public |
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20 * License along with this program. If not, see |
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21 * <http://www.gnu.org/licenses/>. |
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22 **/ |
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23 |
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24 |
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25 #pragma once |
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26 |
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27 #include "../Compatibility.h" // For ORTHANC_FORCE_INLINE |
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28 #include "../Enumerations.h" |
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29 |
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30 #include <limits> |
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31 |
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32 namespace Orthanc |
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33 { |
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34 template <PixelFormat format, |
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35 typename _PixelType> |
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36 struct IntegerPixelTraits |
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37 { |
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38 typedef _PixelType PixelType; |
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39 |
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40 ORTHANC_FORCE_INLINE |
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41 static PixelFormat GetPixelFormat() |
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42 { |
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43 return format; |
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44 } |
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45 |
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46 ORTHANC_FORCE_INLINE |
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47 static PixelType IntegerToPixel(int64_t value) |
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48 { |
2895 | 49 if (value < static_cast<int64_t>(std::numeric_limits<PixelType>::min())) |
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50 { |
2895 | 51 return std::numeric_limits<PixelType>::min(); |
52 } | |
53 else if (value > static_cast<int64_t>(std::numeric_limits<PixelType>::max())) | |
54 { | |
55 return std::numeric_limits<PixelType>::max(); | |
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56 } |
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57 else |
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58 { |
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59 return static_cast<PixelType>(value); |
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60 } |
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61 } |
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62 |
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63 ORTHANC_FORCE_INLINE |
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64 static void SetZero(PixelType& target) |
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65 { |
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66 target = 0; |
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67 } |
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68 |
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69 ORTHANC_FORCE_INLINE |
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70 static void SetMinValue(PixelType& target) |
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71 { |
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72 target = std::numeric_limits<PixelType>::min(); |
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73 } |
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74 |
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75 ORTHANC_FORCE_INLINE |
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76 static void SetMaxValue(PixelType& target) |
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77 { |
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78 target = std::numeric_limits<PixelType>::max(); |
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79 } |
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80 |
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81 ORTHANC_FORCE_INLINE |
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82 static void Copy(PixelType& target, |
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83 const PixelType& source) |
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84 { |
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85 target = source; |
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86 } |
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88 ORTHANC_FORCE_INLINE |
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89 static float PixelToFloat(const PixelType& source) |
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90 { |
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91 return static_cast<float>(source); |
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92 } |
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93 |
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94 ORTHANC_FORCE_INLINE |
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95 static void FloatToPixel(PixelType& target, |
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96 float value) |
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97 { |
3263 | 98 value += 0.5f; |
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99 if (value < static_cast<float>(std::numeric_limits<PixelType>::min())) |
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100 { |
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101 target = std::numeric_limits<PixelType>::min(); |
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102 } |
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103 else if (value > static_cast<float>(std::numeric_limits<PixelType>::max())) |
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104 { |
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105 target = std::numeric_limits<PixelType>::max(); |
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106 } |
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107 else |
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108 { |
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109 target = static_cast<PixelType>(value); |
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110 } |
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111 } |
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112 |
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113 ORTHANC_FORCE_INLINE |
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114 static bool IsEqual(const PixelType& a, |
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115 const PixelType& b) |
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116 { |
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117 return a == b; |
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118 } |
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119 }; |
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120 |
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121 |
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122 template <PixelFormat Format> |
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123 struct PixelTraits; |
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124 |
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125 |
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126 template <> |
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127 struct PixelTraits<PixelFormat_Grayscale8> : |
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128 public IntegerPixelTraits<PixelFormat_Grayscale8, uint8_t> |
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129 { |
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130 }; |
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131 |
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132 |
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133 template <> |
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134 struct PixelTraits<PixelFormat_Grayscale16> : |
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135 public IntegerPixelTraits<PixelFormat_Grayscale16, uint16_t> |
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136 { |
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137 }; |
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138 |
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139 |
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140 template <> |
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141 struct PixelTraits<PixelFormat_SignedGrayscale16> : |
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142 public IntegerPixelTraits<PixelFormat_SignedGrayscale16, int16_t> |
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143 { |
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144 }; |
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145 |
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146 |
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147 template <> |
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148 struct PixelTraits<PixelFormat_Grayscale32> : |
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149 public IntegerPixelTraits<PixelFormat_Grayscale32, uint32_t> |
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150 { |
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151 }; |
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152 |
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153 |
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154 template <> |
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155 struct PixelTraits<PixelFormat_Grayscale64> : |
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156 public IntegerPixelTraits<PixelFormat_Grayscale64, uint64_t> |
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157 { |
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158 }; |
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159 |
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160 |
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161 template <> |
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162 struct PixelTraits<PixelFormat_RGB24> |
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163 { |
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164 struct PixelType |
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165 { |
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166 uint8_t red_; |
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167 uint8_t green_; |
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168 uint8_t blue_; |
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169 }; |
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170 |
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171 ORTHANC_FORCE_INLINE |
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172 static PixelFormat GetPixelFormat() |
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173 { |
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174 return PixelFormat_RGB24; |
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175 } |
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176 |
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177 ORTHANC_FORCE_INLINE |
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178 static void SetZero(PixelType& target) |
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179 { |
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180 target.red_ = 0; |
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181 target.green_ = 0; |
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182 target.blue_ = 0; |
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183 } |
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184 |
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185 ORTHANC_FORCE_INLINE |
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186 static void Copy(PixelType& target, |
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187 const PixelType& source) |
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188 { |
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189 target.red_ = source.red_; |
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190 target.green_ = source.green_; |
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191 target.blue_ = source.blue_; |
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192 } |
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193 |
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194 ORTHANC_FORCE_INLINE |
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195 static bool IsEqual(const PixelType& a, |
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196 const PixelType& b) |
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197 { |
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198 return (a.red_ == b.red_ && |
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199 a.green_ == b.green_ && |
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200 a.blue_ == b.blue_); |
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201 } |
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202 |
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203 ORTHANC_FORCE_INLINE |
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204 static void FloatToPixel(PixelType& target, |
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205 float value) |
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206 { |
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207 uint8_t v; |
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208 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value); |
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209 |
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210 target.red_ = v; |
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211 target.green_ = v; |
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212 target.blue_ = v; |
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213 } |
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214 }; |
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215 |
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216 |
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217 template <> |
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218 struct PixelTraits<PixelFormat_BGRA32> |
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219 { |
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220 struct PixelType |
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221 { |
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222 uint8_t blue_; |
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223 uint8_t green_; |
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224 uint8_t red_; |
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225 uint8_t alpha_; |
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226 }; |
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227 |
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228 ORTHANC_FORCE_INLINE |
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229 static PixelFormat GetPixelFormat() |
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230 { |
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231 return PixelFormat_BGRA32; |
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232 } |
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233 |
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234 ORTHANC_FORCE_INLINE |
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235 static void SetZero(PixelType& target) |
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236 { |
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237 target.blue_ = 0; |
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238 target.green_ = 0; |
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239 target.red_ = 0; |
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240 target.alpha_ = 0; |
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241 } |
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242 |
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243 ORTHANC_FORCE_INLINE |
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244 static void Copy(PixelType& target, |
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245 const PixelType& source) |
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246 { |
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247 target.blue_ = source.blue_; |
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248 target.green_ = source.green_; |
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249 target.red_ = source.red_; |
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250 target.alpha_ = source.alpha_; |
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251 } |
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252 |
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253 ORTHANC_FORCE_INLINE |
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254 static bool IsEqual(const PixelType& a, |
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255 const PixelType& b) |
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256 { |
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257 return (a.blue_ == b.blue_ && |
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258 a.green_ == b.green_ && |
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259 a.red_ == b.red_ && |
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260 a.alpha_ == b.alpha_); |
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261 } |
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262 |
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263 ORTHANC_FORCE_INLINE |
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264 static void FloatToPixel(PixelType& target, |
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265 float value) |
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266 { |
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267 uint8_t v; |
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268 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value); |
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269 |
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270 target.blue_ = v; |
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271 target.green_ = v; |
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272 target.red_ = v; |
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273 target.alpha_ = 255; |
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274 } |
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275 }; |
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276 |
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277 |
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278 template <> |
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279 struct PixelTraits<PixelFormat_RGBA32> |
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280 { |
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281 struct PixelType |
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282 { |
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283 uint8_t red_; |
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284 uint8_t green_; |
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285 uint8_t blue_; |
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286 uint8_t alpha_; |
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287 }; |
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288 |
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289 ORTHANC_FORCE_INLINE |
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290 static PixelFormat GetPixelFormat() |
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291 { |
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292 return PixelFormat_RGBA32; |
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293 } |
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294 |
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295 ORTHANC_FORCE_INLINE |
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296 static void SetZero(PixelType& target) |
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297 { |
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298 target.red_ = 0; |
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299 target.green_ = 0; |
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300 target.blue_ = 0; |
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301 target.alpha_ = 0; |
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302 } |
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303 |
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304 ORTHANC_FORCE_INLINE |
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305 static void Copy(PixelType& target, |
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306 const PixelType& source) |
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307 { |
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308 target.red_ = source.red_; |
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309 target.green_ = source.green_; |
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310 target.blue_ = source.blue_; |
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311 target.alpha_ = source.alpha_; |
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312 } |
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313 |
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314 ORTHANC_FORCE_INLINE |
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315 static bool IsEqual(const PixelType& a, |
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316 const PixelType& b) |
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317 { |
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318 return (a.red_ == b.red_ && |
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319 a.green_ == b.green_ && |
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320 a.blue_ == b.blue_ && |
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321 a.alpha_ == b.alpha_); |
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322 } |
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323 |
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324 ORTHANC_FORCE_INLINE |
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325 static void FloatToPixel(PixelType& target, |
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326 float value) |
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327 { |
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328 uint8_t v; |
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329 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value); |
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330 |
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331 target.red_ = v; |
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332 target.green_ = v; |
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333 target.blue_ = v; |
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334 target.alpha_ = 255; |
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335 } |
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336 }; |
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337 |
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338 |
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339 template <> |
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340 struct PixelTraits<PixelFormat_Float32> |
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341 { |
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342 typedef float PixelType; |
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343 |
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344 ORTHANC_FORCE_INLINE |
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345 static PixelFormat GetPixelFormat() |
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346 { |
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347 return PixelFormat_Float32; |
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348 } |
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349 |
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350 ORTHANC_FORCE_INLINE |
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351 static void SetZero(PixelType& target) |
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352 { |
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353 target = 0.0f; |
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354 } |
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355 |
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356 ORTHANC_FORCE_INLINE |
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357 static void Copy(PixelType& target, |
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358 const PixelType& source) |
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359 { |
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360 target = source; |
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361 } |
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362 |
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363 ORTHANC_FORCE_INLINE |
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364 static bool IsEqual(const PixelType& a, |
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365 const PixelType& b) |
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366 { |
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367 float tmp = (a - b); |
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368 |
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369 if (tmp < 0) |
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370 { |
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371 tmp = -tmp; |
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372 } |
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373 |
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374 return tmp <= std::numeric_limits<float>::epsilon(); |
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375 } |
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376 |
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377 ORTHANC_FORCE_INLINE |
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378 static void SetMinValue(PixelType& target) |
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379 { |
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380 // std::numeric_limits<float>::lowest is not supported on |
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381 // all compilers (for instance, Visual Studio 9.0 2008) |
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382 target = -std::numeric_limits<float>::max(); |
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383 } |
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384 |
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385 ORTHANC_FORCE_INLINE |
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386 static void SetMaxValue(PixelType& target) |
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387 { |
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388 target = std::numeric_limits<float>::max(); |
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389 } |
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390 |
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391 ORTHANC_FORCE_INLINE |
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392 static void FloatToPixel(PixelType& target, |
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393 float value) |
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394 { |
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395 target = value; |
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396 } |
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397 |
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398 ORTHANC_FORCE_INLINE |
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399 static float PixelToFloat(const PixelType& source) |
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400 { |
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401 return source; |
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402 } |
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403 }; |
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404 } |