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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 *
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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 Affero General Public License
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8 * as published by the Free Software Foundation, either version 3 of
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9 * the License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Affero General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Affero General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #include "InMemoryTiledImage.h"
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22
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23 #include "../ImageToolbox.h"
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24 #include "../Orthanc/Core/Logging.h"
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25 #include "../Orthanc/Core/OrthancException.h"
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26
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27 namespace OrthancWSI
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28 {
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29 static void CheckLevel(unsigned int level)
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30 {
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31 if (level != 0)
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32 {
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33 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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34 }
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35 }
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36
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37
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38 InMemoryTiledImage::InMemoryTiledImage(Orthanc::PixelFormat format,
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39 unsigned int countTilesX,
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40 unsigned int countTilesY,
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41 unsigned int tileWidth,
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42 unsigned int tileHeight) :
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43 format_(format),
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44 countTilesX_(countTilesX),
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45 countTilesY_(countTilesY),
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46 tileWidth_(tileWidth),
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47 tileHeight_(tileHeight)
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48 {
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49 }
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50
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51
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52 InMemoryTiledImage::~InMemoryTiledImage()
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53 {
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54 for (Tiles::iterator it = tiles_.begin(); it != tiles_.end(); ++it)
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55 {
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56 delete it->second;
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57 }
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58 }
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59
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60
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61 unsigned int InMemoryTiledImage::GetCountTilesX(unsigned int level) const
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62 {
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63 CheckLevel(level);
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64 return countTilesX_;
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65 }
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66
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67
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68 unsigned int InMemoryTiledImage::GetCountTilesY(unsigned int level) const
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69 {
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70 CheckLevel(level);
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71 return countTilesY_;
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72 }
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73
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74
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75 unsigned int InMemoryTiledImage::GetLevelWidth(unsigned int level) const
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76 {
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77 CheckLevel(level);
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78 return tileWidth_ * countTilesX_;
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79 }
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80
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81
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82 unsigned int InMemoryTiledImage::GetLevelHeight(unsigned int level) const
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83 {
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84 CheckLevel(level);
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85 return tileHeight_ * countTilesY_;
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86 }
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87
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88
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89 bool InMemoryTiledImage::ReadRawTile(std::string& tile,
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90 unsigned int level,
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91 unsigned int tileX,
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92 unsigned int tileY)
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93 {
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94 CheckLevel(level);
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95 return false; // Unavailable
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96 }
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97
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98
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99 Orthanc::ImageAccessor* InMemoryTiledImage::DecodeTile(unsigned int level,
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100 unsigned int tileX,
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101 unsigned int tileY)
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102 {
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103 CheckLevel(level);
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104
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105 if (tileX >= countTilesX_ ||
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106 tileY >= countTilesY_)
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107 {
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108 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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109 }
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110
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111 {
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112 boost::mutex::scoped_lock lock(mutex_);
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113
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114 Tiles::const_iterator it = tiles_.find(std::make_pair(tileX, tileY));
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115 if (it != tiles_.end())
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116 {
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117 return new Orthanc::ImageAccessor(*it->second);
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118 }
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119 else
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120 {
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121 LOG(ERROR) << "The following tile has not been set: " << tileX << "," << tileY;
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122 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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123 }
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124 }
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125 }
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126
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127
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128 void InMemoryTiledImage::WriteRawTile(const std::string& raw,
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129 ImageCompression compression,
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130 unsigned int level,
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131 unsigned int tileX,
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132 unsigned int tileY)
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133 {
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134 std::auto_ptr<Orthanc::ImageAccessor> decoded(ImageToolbox::DecodeTile(raw, compression));
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135 EncodeTile(*decoded, level, tileX, tileY);
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136 }
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137
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138
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139 void InMemoryTiledImage::EncodeTile(const Orthanc::ImageAccessor& tile,
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140 unsigned int level,
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141 unsigned int tileX,
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142 unsigned int tileY)
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143 {
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144 CheckLevel(level);
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145
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146 if (tileX >= countTilesX_ ||
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147 tileY >= countTilesY_)
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148 {
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149 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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150 }
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151
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152 {
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153 boost::mutex::scoped_lock lock(mutex_);
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154
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155 Tiles::iterator it = tiles_.find(std::make_pair(tileX, tileY));
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156 if (it == tiles_.end())
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157 {
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158 tiles_[std::make_pair(tileX, tileY)] = ImageToolbox::Clone(tile);
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159 }
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160 else
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161 {
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162 if (it->second)
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163 {
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164 delete it->second;
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165 }
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166
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167 it->second = ImageToolbox::Clone(tile);
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168 }
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169 }
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170 }
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171 }
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