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1 /**
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2 * Stone of Orthanc
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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 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include "../Enumerations.h"
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36 #include "../Toolbox/IThreadSafety.h"
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37 #include "../Toolbox/SliceGeometry.h"
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38 #include "../Toolbox/ParallelSlices.h"
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39
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40 #include "../Orthanc/Core/Images/Image.h"
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41
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42 #include <boost/thread/shared_mutex.hpp>
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43
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44 #if defined(_WIN32)
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45 # include <boost/thread/win32/mutex.hpp>
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46 #endif
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47
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48 namespace OrthancStone
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49 {
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50 class ImageBuffer3D : public IThreadSafe
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51 {
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52 private:
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53 typedef boost::shared_mutex Mutex;
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54 typedef boost::unique_lock<Mutex> WriteLock;
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55 typedef boost::shared_lock<Mutex> ReadLock;
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56
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57 Mutex mutex_;
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58 SliceGeometry axialGeometry_;
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59 Vector voxelDimensions_;
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60 Orthanc::Image image_;
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61 Orthanc::PixelFormat format_;
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62 unsigned int width_;
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63 unsigned int height_;
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64 unsigned int depth_;
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65
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66 Orthanc::ImageAccessor GetAxialSliceAccessor(unsigned int slice,
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67 bool readOnly);
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68
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69 Orthanc::ImageAccessor GetCoronalSliceAccessor(unsigned int slice,
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70 bool readOnly);
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71
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72 Orthanc::Image* ExtractSagittalSlice(unsigned int slice) const;
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73
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74 public:
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75 ImageBuffer3D(Orthanc::PixelFormat format,
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76 unsigned int width,
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77 unsigned int height,
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78 unsigned int depth);
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79
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80 void Clear();
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81
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82 // Set the geometry of the first axial slice (i.e. the one whose
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83 // depth == 0)
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84 void SetAxialGeometry(const SliceGeometry& geometry);
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85
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86 void SetVoxelDimensions(double x,
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87 double y,
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88 double z);
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89
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90 Vector GetVoxelDimensions(VolumeProjection projection);
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91
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92 void GetSliceSize(unsigned int& width,
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93 unsigned int& height,
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94 VolumeProjection projection);
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95
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96 unsigned int GetWidth() const
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97 {
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98 return width_;
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99 }
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100
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101 unsigned int GetHeight() const
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102 {
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103 return height_;
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104 }
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105
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106 unsigned int GetDepth() const
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107 {
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108 return depth_;
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109 }
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110
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111 Orthanc::PixelFormat GetFormat() const
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112 {
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113 return format_;
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114 }
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115
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116 ParallelSlices* GetGeometry(VolumeProjection projection);
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117
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118
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119 class SliceReader : public boost::noncopyable
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120 {
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121 private:
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122 ReadLock lock_;
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123 Orthanc::ImageAccessor accessor_;
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124 std::auto_ptr<Orthanc::Image> sagittal_; // Unused for axial and coronal
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125
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126 public:
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127 SliceReader(ImageBuffer3D& that,
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128 VolumeProjection projection,
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129 unsigned int slice);
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130
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131 const Orthanc::ImageAccessor& GetAccessor() const
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132 {
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133 return accessor_;
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134 }
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135 };
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136
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137
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138 class SliceWriter : public boost::noncopyable
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139 {
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140 private:
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141 WriteLock lock_;
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142 Orthanc::ImageAccessor accessor_;
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143 std::auto_ptr<Orthanc::Image> sagittal_; // Unused for axial and coronal
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144
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145 void Flush();
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146
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147 public:
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148 SliceWriter(ImageBuffer3D& that,
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149 VolumeProjection projection,
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150 unsigned int slice);
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151
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152 ~SliceWriter()
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153 {
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154 Flush();
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155 }
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156
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157 Orthanc::ImageAccessor& GetAccessor()
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158 {
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159 return accessor_;
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160 }
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161 };
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162 };
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163 }
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