Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/DicomPyramidCache.cpp @ 324:a92bb720f90b
renamed option --tiff-alignment as --padding
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 16 Oct 2024 21:08:58 +0200 |
parents | 0683312e21ba |
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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) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
309
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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 Affero 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 * Affero 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 Affero General Public License |
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20 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 |
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24 #include "../Framework/PrecompiledHeadersWSI.h" |
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25 #include "DicomPyramidCache.h" |
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26 |
261 | 27 #include "OrthancPluginConnection.h" |
28 | |
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29 #include <Compatibility.h> // For std::unique_ptr |
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30 |
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31 #include <cassert> |
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32 |
261 | 33 static std::unique_ptr<OrthancWSI::DicomPyramidCache> singleton_; |
34 | |
35 | |
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36 namespace OrthancWSI |
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37 { |
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38 DicomPyramid* DicomPyramidCache::GetCachedPyramid(const std::string& seriesId) |
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39 { |
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40 // Mutex is assumed to be locked |
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41 DicomPyramid* pyramid = NULL; |
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42 |
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43 // Is the series of interest already cached as a pyramid? |
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44 if (cache_.Contains(seriesId, pyramid)) |
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45 { |
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46 if (pyramid == NULL) |
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47 { |
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48 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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49 } |
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50 |
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51 // Tag the series as the most recently used |
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52 cache_.MakeMostRecent(seriesId); |
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53 } |
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54 |
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55 return pyramid; |
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56 } |
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57 |
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58 |
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59 DicomPyramid& DicomPyramidCache::GetPyramid(const std::string& seriesId, |
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60 boost::mutex::scoped_lock& lock) |
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61 { |
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62 // Mutex is assumed to be locked |
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63 |
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64 { |
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65 DicomPyramid* pyramid = GetCachedPyramid(seriesId); |
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66 if (pyramid != NULL) |
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67 { |
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68 return *pyramid; |
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69 } |
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70 } |
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71 |
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72 // Unlock the mutex to construct the pyramid (this is a |
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73 // time-consuming operation, we don't want it to block other clients) |
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74 lock.unlock(); |
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75 |
261 | 76 assert(orthanc_.get() != NULL); |
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77 std::unique_ptr<DicomPyramid> pyramid |
261 | 78 (new DicomPyramid(*orthanc_, seriesId, true /* use metadata cache */)); |
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79 |
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80 { |
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81 // The pyramid is constructed: Store it into the cache |
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82 lock.lock(); |
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83 |
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84 DicomPyramid* cached = GetCachedPyramid(seriesId); |
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85 if (cached != NULL) |
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86 { |
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87 // The pyramid was already constructed by another request in |
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88 // between, reuse the cached value (the auto_ptr destroys |
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89 // the just-constructed pyramid) |
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90 return *cached; |
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91 } |
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92 |
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93 if (cache_.GetSize() == maxSize_) |
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94 { |
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95 // The cache has grown too large: First delete the least |
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96 // recently used entry |
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97 DicomPyramid* oldest = NULL; |
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98 cache_.RemoveOldest(oldest); |
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99 |
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100 if (oldest == NULL) |
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101 { |
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102 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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103 } |
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104 else |
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105 { |
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106 delete oldest; |
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107 } |
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108 } |
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109 |
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110 // Now we have at least one free entry in the cache |
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111 assert(cache_.GetSize() < maxSize_); |
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112 |
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113 // Add a new element to the cache and make it the most |
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114 // recently used entry |
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115 DicomPyramid* payload = pyramid.release(); |
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116 cache_.Add(seriesId, payload); |
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117 return *payload; |
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118 } |
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119 } |
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120 |
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121 |
261 | 122 DicomPyramidCache::DicomPyramidCache(OrthancStone::IOrthancConnection* orthanc /* takes ownership */, |
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123 size_t maxSize) : |
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124 orthanc_(orthanc), |
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125 maxSize_(maxSize) |
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126 { |
261 | 127 if (orthanc == NULL) |
128 { | |
129 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
130 } | |
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131 } |
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132 |
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133 |
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134 DicomPyramidCache::~DicomPyramidCache() |
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135 { |
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136 while (!cache_.IsEmpty()) |
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137 { |
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138 DicomPyramid* pyramid = NULL; |
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139 std::string seriesId = cache_.RemoveOldest(pyramid); |
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140 |
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141 if (pyramid != NULL) |
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142 { |
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143 delete pyramid; |
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144 } |
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145 } |
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146 } |
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147 |
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148 |
261 | 149 void DicomPyramidCache::InitializeInstance(size_t maxSize) |
150 { | |
151 if (singleton_.get() == NULL) | |
152 { | |
153 singleton_.reset(new DicomPyramidCache(new OrthancWSI::OrthancPluginConnection, maxSize)); | |
154 } | |
155 else | |
156 { | |
157 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
158 } | |
159 } | |
160 | |
161 | |
162 void DicomPyramidCache::FinalizeInstance() | |
163 { | |
164 if (singleton_.get() == NULL) | |
165 { | |
166 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
167 } | |
168 else | |
169 { | |
170 singleton_.reset(NULL); | |
171 } | |
172 } | |
173 | |
174 | |
175 DicomPyramidCache& DicomPyramidCache::GetInstance() | |
176 { | |
177 if (singleton_.get() == NULL) | |
178 { | |
179 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
180 } | |
181 else | |
182 { | |
183 return *singleton_; | |
184 } | |
185 } | |
186 | |
187 | |
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188 void DicomPyramidCache::Invalidate(const std::string& seriesId) |
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189 { |
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190 boost::mutex::scoped_lock lock(mutex_); |
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191 |
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192 if (cache_.Contains(seriesId)) |
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193 { |
199
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196
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194 std::unique_ptr<DicomPyramid> pyramid(cache_.Invalidate(seriesId)); |
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195 |
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196 if (pyramid.get() == NULL) |
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197 { |
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198 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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199 } |
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200 } |
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201 } |
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202 |
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203 |
261 | 204 DicomPyramidCache::Locker::Locker(const std::string& seriesId) : |
205 cache_(DicomPyramidCache::GetInstance()), | |
206 lock_(cache_.mutex_), | |
207 pyramid_(cache_.GetPyramid(seriesId, lock_)) | |
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208 { |
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209 } |
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210 } |