Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/PixelTraits.h @ 4201:2d5209153b32
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 17 Sep 2020 08:18:28 +0200 |
parents | bf7b9edf6b81 |
children | 2007ab69ac16 |
rev | line source |
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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) 2017-2020 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
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23 #pragma once |
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24 |
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25 #include "../Enumerations.h" |
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26 |
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27 #include <limits> |
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28 |
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29 namespace Orthanc |
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30 { |
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31 template <PixelFormat format, |
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32 typename _PixelType> |
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33 struct IntegerPixelTraits |
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34 { |
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35 typedef _PixelType PixelType; |
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36 |
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37 ORTHANC_FORCE_INLINE |
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38 static PixelFormat GetPixelFormat() |
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39 { |
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40 return format; |
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41 } |
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42 |
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43 ORTHANC_FORCE_INLINE |
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44 static PixelType IntegerToPixel(int64_t value) |
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45 { |
2895 | 46 if (value < static_cast<int64_t>(std::numeric_limits<PixelType>::min())) |
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47 { |
2895 | 48 return std::numeric_limits<PixelType>::min(); |
49 } | |
50 else if (value > static_cast<int64_t>(std::numeric_limits<PixelType>::max())) | |
51 { | |
52 return std::numeric_limits<PixelType>::max(); | |
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53 } |
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54 else |
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55 { |
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56 return static_cast<PixelType>(value); |
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57 } |
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58 } |
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59 |
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60 ORTHANC_FORCE_INLINE |
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61 static void SetZero(PixelType& target) |
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62 { |
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63 target = 0; |
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64 } |
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65 |
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66 ORTHANC_FORCE_INLINE |
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67 static void SetMinValue(PixelType& target) |
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68 { |
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69 target = std::numeric_limits<PixelType>::min(); |
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70 } |
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71 |
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72 ORTHANC_FORCE_INLINE |
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73 static void SetMaxValue(PixelType& target) |
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74 { |
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75 target = std::numeric_limits<PixelType>::max(); |
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76 } |
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77 |
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78 ORTHANC_FORCE_INLINE |
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79 static void Copy(PixelType& target, |
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80 const PixelType& source) |
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81 { |
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82 target = source; |
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83 } |
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84 |
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85 ORTHANC_FORCE_INLINE |
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86 static float PixelToFloat(const PixelType& source) |
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87 { |
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88 return static_cast<float>(source); |
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89 } |
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90 |
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91 ORTHANC_FORCE_INLINE |
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92 static void FloatToPixel(PixelType& target, |
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93 float value) |
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94 { |
3263 | 95 value += 0.5f; |
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96 if (value < static_cast<float>(std::numeric_limits<PixelType>::min())) |
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97 { |
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98 target = std::numeric_limits<PixelType>::min(); |
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99 } |
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100 else if (value > static_cast<float>(std::numeric_limits<PixelType>::max())) |
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101 { |
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102 target = std::numeric_limits<PixelType>::max(); |
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103 } |
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104 else |
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105 { |
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106 target = static_cast<PixelType>(value); |
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107 } |
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108 } |
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109 |
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110 ORTHANC_FORCE_INLINE |
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111 static bool IsEqual(const PixelType& a, |
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112 const PixelType& b) |
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113 { |
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114 return a == b; |
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115 } |
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116 }; |
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117 |
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118 |
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119 template <PixelFormat Format> |
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120 struct PixelTraits; |
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121 |
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122 |
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123 template <> |
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124 struct PixelTraits<PixelFormat_Grayscale8> : |
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125 public IntegerPixelTraits<PixelFormat_Grayscale8, uint8_t> |
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126 { |
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127 }; |
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128 |
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129 |
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130 template <> |
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131 struct PixelTraits<PixelFormat_Grayscale16> : |
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132 public IntegerPixelTraits<PixelFormat_Grayscale16, uint16_t> |
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133 { |
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134 }; |
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135 |
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136 |
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137 template <> |
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138 struct PixelTraits<PixelFormat_SignedGrayscale16> : |
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139 public IntegerPixelTraits<PixelFormat_SignedGrayscale16, int16_t> |
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140 { |
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141 }; |
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142 |
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143 |
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144 template <> |
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145 struct PixelTraits<PixelFormat_Grayscale32> : |
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146 public IntegerPixelTraits<PixelFormat_Grayscale32, uint32_t> |
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147 { |
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148 }; |
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149 |
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150 |
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151 template <> |
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152 struct PixelTraits<PixelFormat_Grayscale64> : |
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153 public IntegerPixelTraits<PixelFormat_Grayscale64, uint64_t> |
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154 { |
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155 }; |
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156 |
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157 |
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158 template <> |
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159 struct PixelTraits<PixelFormat_RGB24> |
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160 { |
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161 struct PixelType |
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162 { |
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163 uint8_t red_; |
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164 uint8_t green_; |
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165 uint8_t blue_; |
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166 }; |
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167 |
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168 ORTHANC_FORCE_INLINE |
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169 static PixelFormat GetPixelFormat() |
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170 { |
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171 return PixelFormat_RGB24; |
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172 } |
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173 |
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174 ORTHANC_FORCE_INLINE |
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175 static void SetZero(PixelType& target) |
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176 { |
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177 target.red_ = 0; |
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178 target.green_ = 0; |
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179 target.blue_ = 0; |
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180 } |
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181 |
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182 ORTHANC_FORCE_INLINE |
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183 static void Copy(PixelType& target, |
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184 const PixelType& source) |
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185 { |
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186 target.red_ = source.red_; |
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187 target.green_ = source.green_; |
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188 target.blue_ = source.blue_; |
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189 } |
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190 |
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191 ORTHANC_FORCE_INLINE |
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192 static bool IsEqual(const PixelType& a, |
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193 const PixelType& b) |
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194 { |
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195 return (a.red_ == b.red_ && |
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196 a.green_ == b.green_ && |
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197 a.blue_ == b.blue_); |
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198 } |
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199 |
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200 ORTHANC_FORCE_INLINE |
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201 static void FloatToPixel(PixelType& target, |
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202 float value) |
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203 { |
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204 uint8_t v; |
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205 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value); |
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206 |
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207 target.red_ = v; |
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208 target.green_ = v; |
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209 target.blue_ = v; |
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210 } |
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211 }; |
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212 |
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213 |
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214 template <> |
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215 struct PixelTraits<PixelFormat_BGRA32> |
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216 { |
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217 struct PixelType |
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218 { |
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219 uint8_t blue_; |
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220 uint8_t green_; |
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221 uint8_t red_; |
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222 uint8_t alpha_; |
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223 }; |
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224 |
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225 ORTHANC_FORCE_INLINE |
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226 static PixelFormat GetPixelFormat() |
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227 { |
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228 return PixelFormat_BGRA32; |
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229 } |
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230 |
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231 ORTHANC_FORCE_INLINE |
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232 static void SetZero(PixelType& target) |
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233 { |
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234 target.blue_ = 0; |
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235 target.green_ = 0; |
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236 target.red_ = 0; |
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237 target.alpha_ = 0; |
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238 } |
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239 |
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240 ORTHANC_FORCE_INLINE |
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241 static void Copy(PixelType& target, |
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242 const PixelType& source) |
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243 { |
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244 target.blue_ = source.blue_; |
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245 target.green_ = source.green_; |
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246 target.red_ = source.red_; |
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247 target.alpha_ = source.alpha_; |
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248 } |
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249 |
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250 ORTHANC_FORCE_INLINE |
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251 static bool IsEqual(const PixelType& a, |
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252 const PixelType& b) |
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253 { |
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254 return (a.blue_ == b.blue_ && |
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255 a.green_ == b.green_ && |
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256 a.red_ == b.red_ && |
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257 a.alpha_ == b.alpha_); |
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258 } |
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259 |
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260 ORTHANC_FORCE_INLINE |
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261 static void FloatToPixel(PixelType& target, |
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262 float value) |
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263 { |
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264 uint8_t v; |
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265 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value); |
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266 |
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267 target.blue_ = v; |
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268 target.green_ = v; |
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269 target.red_ = v; |
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270 target.alpha_ = 255; |
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271 } |
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272 }; |
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273 |
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274 |
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275 template <> |
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276 struct PixelTraits<PixelFormat_RGBA32> |
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277 { |
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278 struct PixelType |
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279 { |
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280 uint8_t red_; |
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281 uint8_t green_; |
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282 uint8_t blue_; |
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283 uint8_t alpha_; |
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284 }; |
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285 |
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286 ORTHANC_FORCE_INLINE |
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287 static PixelFormat GetPixelFormat() |
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288 { |
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289 return PixelFormat_RGBA32; |
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290 } |
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291 |
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292 ORTHANC_FORCE_INLINE |
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293 static void SetZero(PixelType& target) |
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294 { |
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295 target.red_ = 0; |
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296 target.green_ = 0; |
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297 target.blue_ = 0; |
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298 target.alpha_ = 0; |
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299 } |
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300 |
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301 ORTHANC_FORCE_INLINE |
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302 static void Copy(PixelType& target, |
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303 const PixelType& source) |
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304 { |
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305 target.red_ = source.red_; |
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306 target.green_ = source.green_; |
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307 target.blue_ = source.blue_; |
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308 target.alpha_ = source.alpha_; |
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309 } |
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310 |
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311 ORTHANC_FORCE_INLINE |
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312 static bool IsEqual(const PixelType& a, |
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313 const PixelType& b) |
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314 { |
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315 return (a.red_ == b.red_ && |
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316 a.green_ == b.green_ && |
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317 a.blue_ == b.blue_ && |
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318 a.alpha_ == b.alpha_); |
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319 } |
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320 |
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321 ORTHANC_FORCE_INLINE |
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322 static void FloatToPixel(PixelType& target, |
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323 float value) |
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324 { |
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325 uint8_t v; |
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326 PixelTraits<PixelFormat_Grayscale8>::FloatToPixel(v, value); |
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327 |
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328 target.red_ = v; |
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329 target.green_ = v; |
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330 target.blue_ = v; |
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331 target.alpha_ = 255; |
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332 } |
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333 }; |
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334 |
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335 |
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336 template <> |
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337 struct PixelTraits<PixelFormat_Float32> |
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338 { |
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339 typedef float PixelType; |
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340 |
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341 ORTHANC_FORCE_INLINE |
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342 static PixelFormat GetPixelFormat() |
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343 { |
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344 return PixelFormat_Float32; |
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345 } |
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346 |
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347 ORTHANC_FORCE_INLINE |
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348 static void SetZero(PixelType& target) |
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349 { |
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350 target = 0.0f; |
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351 } |
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352 |
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353 ORTHANC_FORCE_INLINE |
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354 static void Copy(PixelType& target, |
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355 const PixelType& source) |
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356 { |
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357 target = source; |
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358 } |
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359 |
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360 ORTHANC_FORCE_INLINE |
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361 static bool IsEqual(const PixelType& a, |
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362 const PixelType& b) |
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363 { |
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364 float tmp = (a - b); |
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365 |
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366 if (tmp < 0) |
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367 { |
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368 tmp = -tmp; |
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369 } |
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370 |
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371 return tmp <= std::numeric_limits<float>::epsilon(); |
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372 } |
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373 |
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374 ORTHANC_FORCE_INLINE |
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375 static void SetMinValue(PixelType& target) |
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376 { |
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377 // std::numeric_limits<float>::lowest is not supported on |
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378 // all compilers (for instance, Visual Studio 9.0 2008) |
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379 target = -std::numeric_limits<float>::max(); |
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380 } |
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381 |
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382 ORTHANC_FORCE_INLINE |
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383 static void SetMaxValue(PixelType& target) |
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384 { |
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385 target = std::numeric_limits<float>::max(); |
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386 } |
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387 |
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388 ORTHANC_FORCE_INLINE |
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389 static void FloatToPixel(PixelType& target, |
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390 float value) |
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391 { |
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392 target = value; |
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393 } |
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394 |
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395 ORTHANC_FORCE_INLINE |
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396 static float PixelToFloat(const PixelType& source) |
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397 { |
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398 return source; |
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399 } |
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400 }; |
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401 } |