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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 "PyramidWriterBase.h"
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22
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23 #include "../ImageToolbox.h"
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24 #include "../Orthanc/Core/OrthancException.h"
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25 #include "../Orthanc/Core/Logging.h"
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26
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27 namespace OrthancWSI
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28 {
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29 PyramidWriterBase::Level PyramidWriterBase::GetLevel(unsigned int level) const
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30 {
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31 boost::mutex::scoped_lock lock(const_cast<PyramidWriterBase&>(*this).mutex_);
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32
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33 if (level >= levels_.size())
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34 {
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35 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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36 }
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37 else
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38 {
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39 return levels_[level];
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40 }
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41 }
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42
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43
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44 PyramidWriterBase::PyramidWriterBase(Orthanc::PixelFormat pixelFormat,
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45 ImageCompression compression,
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46 unsigned int tileWidth,
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47 unsigned int tileHeight) :
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48 pixelFormat_(pixelFormat),
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49 compression_(compression),
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50 tileWidth_(tileWidth),
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51 tileHeight_(tileHeight),
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52 jpegQuality_(90), // Default JPEG quality
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53 first_(true)
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54 {
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55 }
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56
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57
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58 void PyramidWriterBase::SetJpegQuality(int quality)
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59 {
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60 if (quality <= 0 || quality > 100)
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61 {
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62 LOG(ERROR) << "The JPEG quality must be in range [1;100], but " << quality << " is provided";
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63 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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64 }
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65
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66 jpegQuality_ = quality;
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67 }
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68
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69
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70 void PyramidWriterBase::AddLevel(unsigned int width,
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71 unsigned int height)
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72 {
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73 boost::mutex::scoped_lock lock(mutex_);
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74
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75 if (!first_)
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76 {
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77 LOG(ERROR) << "Cannot add pyramid levels after some tile has already been written";
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78 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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79 }
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80
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81 if (!levels_.empty())
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82 {
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83 const Level& previous = levels_[levels_.size() - 1];
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84
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85 if (width >= previous.width_ ||
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86 height >= previous.height_ ||
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87 width == 0 ||
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88 height == 0)
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89 {
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90 LOG(ERROR) << "Levels must have strictly decreasing sizes";
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91 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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92 }
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93 }
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94
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95 Level level;
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96 level.z_ = levels_.size();
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97 level.width_ = width;
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98 level.height_ = height;
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99 level.countTilesX_ = CeilingDivision(width, tileWidth_);
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100 level.countTilesY_ = CeilingDivision(height, tileHeight_);
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101 levels_.push_back(level);
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102
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103 AddLevelInternal(level);
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104 }
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105
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106
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107 unsigned int PyramidWriterBase::GetLevelCount() const
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108 {
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109 boost::mutex::scoped_lock lock(const_cast<PyramidWriterBase&>(*this).mutex_);
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110 return levels_.size();
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111 }
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112
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113
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114 void PyramidWriterBase::WriteRawTile(const std::string& tile,
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115 ImageCompression compression,
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116 unsigned int z,
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117 unsigned int x,
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118 unsigned int y)
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119 {
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120 first_ = false;
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121
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122 const Level level = GetLevel(z);
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123
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124 if (compression != compression_)
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125 {
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126 std::string recoded;
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127 ImageToolbox::ChangeTileCompression(recoded, tile, compression, compression_, jpegQuality_);
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128 WriteRawTileInternal(recoded, level, x, y);
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129 }
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130 else
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131 {
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132 WriteRawTileInternal(tile, level, x, y);
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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 void PyramidWriterBase::EncodeTile(const Orthanc::ImageAccessor& tile,
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138 unsigned int z,
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139 unsigned int x,
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140 unsigned int y)
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141 {
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142 first_ = false;
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143
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144 const Level level = GetLevel(z);
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145
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146 std::string raw;
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147 ImageToolbox::EncodeTile(raw, tile, compression_, jpegQuality_);
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148 WriteRawTileInternal(raw, level, x, y);
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149 }
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150 }
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