Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/OpenSlideLibrary.cpp @ 257:9af4ba0d92fe iiif
support of full rendering in IIIF
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sun, 09 Jul 2023 15:24:37 +0200 |
parents | 20a730889ae2 |
children | 169f168ba07a |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
254 | 5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium | |
0 | 7 * |
8 * This program is free software: you can redistribute it and/or | |
9 * modify it under the terms of the GNU Affero General Public License | |
10 * as published by the Free Software Foundation, either version 3 of | |
11 * the License, or (at your option) any later version. | |
12 * | |
13 * This program is distributed in the hope that it will be useful, but | |
14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 * Affero General Public License for more details. | |
17 * | |
18 * You should have received a copy of the GNU Affero General Public License | |
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 **/ | |
21 | |
22 | |
16
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23 #include "../PrecompiledHeadersWSI.h" |
0 | 24 #include "OpenSlideLibrary.h" |
25 | |
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26 #include <Compatibility.h> // For std::unique_ptr |
192 | 27 #include <Logging.h> |
28 #include <Images/Image.h> | |
29 #include <OrthancException.h> | |
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31 #include <memory> |
0 | 32 |
33 namespace OrthancWSI | |
34 { | |
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35 static std::unique_ptr<OpenSlideLibrary> globalLibrary_; |
0 | 36 |
37 | |
38 OpenSlideLibrary::OpenSlideLibrary(const std::string& path) : | |
39 library_(path) | |
40 { | |
41 close_ = (FunctionClose) library_.GetFunction("openslide_close"); | |
42 getLevelCount_ = (FunctionGetLevelCount) library_.GetFunction("openslide_get_level_count"); | |
43 getLevelDimensions_ = (FunctionGetLevelDimensions) library_.GetFunction("openslide_get_level_dimensions"); | |
44 getLevelDownsample_ = (FunctionGetLevelDownsample) library_.GetFunction("openslide_get_level_downsample"); | |
45 open_ = (FunctionOpen) library_.GetFunction("openslide_open"); | |
46 readRegion_ = (FunctionReadRegion) library_.GetFunction("openslide_read_region"); | |
47 } | |
48 | |
49 | |
50 OpenSlideLibrary::Image::Level::Level() : | |
51 width_(0), | |
52 height_(0), | |
53 downsample_(1) | |
54 { | |
55 } | |
56 | |
57 | |
58 OpenSlideLibrary::Image::Level::Level(int64_t width, | |
59 int64_t height, | |
60 double downsample) : | |
61 width_(static_cast<unsigned int>(width)), | |
62 height_(static_cast<unsigned int>(height)), | |
63 downsample_(downsample) | |
64 { | |
65 if (width < 0 || | |
66 height < 0 || | |
67 downsample <= 0) | |
68 { | |
69 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
70 } | |
71 | |
72 if (static_cast<int64_t>(width_) != width || | |
73 static_cast<int64_t>(height_) != height) | |
74 { | |
75 LOG(ERROR) << "The whole-slide image is too large"; | |
76 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
77 } | |
78 } | |
79 | |
80 | |
81 void OpenSlideLibrary::Image::Initialize(const std::string& path) | |
82 { | |
83 handle_ = that_.open_(path.c_str()); | |
84 if (handle_ == NULL) | |
85 { | |
86 LOG(ERROR) << "Cannot open an image with OpenSlide: " << path; | |
87 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
88 } | |
89 | |
90 try | |
91 { | |
92 LOG(INFO) << "Opening an image with OpenSlide: " << path; | |
93 | |
94 int32_t tmp = that_.getLevelCount_(handle_); | |
95 if (tmp <= 0) | |
96 { | |
97 LOG(ERROR) << "Image with no pyramid level"; | |
98 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
99 } | |
100 | |
101 levels_.resize(tmp); | |
102 | |
103 for (int32_t level = 0; level < tmp; level++) | |
104 { | |
105 int64_t width, height; | |
106 that_.getLevelDimensions_(handle_, level, &width, &height); | |
107 | |
108 double downsample = that_.getLevelDownsample_(handle_, level); | |
109 | |
110 levels_[level] = Level(width, height, downsample); | |
111 } | |
112 | |
113 for (size_t i = 1; i < levels_.size(); i++) | |
114 { | |
115 if (levels_[i].width_ >= levels_[i - 1].width_ || | |
116 levels_[i].height_ >= levels_[i - 1].height_) | |
117 { | |
118 // This is not a pyramid with levels of decreasing sizes | |
119 // (level "0" must be the finest level) | |
120 LOG(ERROR) << "The pyramid does not have levels of strictly decreasing sizes"; | |
121 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
122 } | |
123 } | |
124 } | |
125 catch (Orthanc::OrthancException&) | |
126 { | |
127 Close(); | |
128 throw; | |
129 } | |
130 } | |
131 | |
132 | |
133 OpenSlideLibrary::Image::Image(OpenSlideLibrary& that, | |
134 const std::string& path) : | |
135 that_(that), | |
136 handle_(NULL) | |
137 { | |
138 Initialize(path); | |
139 } | |
140 | |
141 | |
142 OpenSlideLibrary::Image::Image(const std::string& path) : | |
143 that_(OpenSlideLibrary::GetInstance()), | |
144 handle_(NULL) | |
145 { | |
146 Initialize(path); | |
147 } | |
148 | |
149 | |
150 void OpenSlideLibrary::Image::Close() | |
151 { | |
152 if (handle_ != NULL) | |
153 { | |
154 that_.close_(handle_); | |
155 handle_ = NULL; | |
156 } | |
157 } | |
158 | |
159 | |
160 void OpenSlideLibrary::Image::CheckLevel(unsigned int level) const | |
161 { | |
162 if (level >= levels_.size()) | |
163 { | |
164 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
165 } | |
166 } | |
167 | |
168 | |
169 double OpenSlideLibrary::Image::GetLevelDownsample(unsigned int level) const | |
170 { | |
171 CheckLevel(level); | |
172 return levels_[level].downsample_; | |
173 } | |
174 | |
175 | |
176 unsigned int OpenSlideLibrary::Image::GetLevelWidth(unsigned int level) const | |
177 { | |
178 CheckLevel(level); | |
179 return levels_[level].width_; | |
180 } | |
181 | |
182 | |
183 unsigned int OpenSlideLibrary::Image::GetLevelHeight(unsigned int level) const | |
184 { | |
185 CheckLevel(level); | |
186 return levels_[level].height_; | |
187 } | |
188 | |
189 | |
190 Orthanc::ImageAccessor* OpenSlideLibrary::Image::ReadRegion(unsigned int level, | |
191 uint64_t x, | |
192 uint64_t y, | |
193 unsigned int width, | |
194 unsigned int height) | |
195 { | |
196 CheckLevel(level); | |
197 | |
198 // Create a new image, with minimal pitch so as to be compatible with OpenSlide API | |
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199 std::unique_ptr<Orthanc::ImageAccessor> region(new Orthanc::Image(Orthanc::PixelFormat_BGRA32, width, height, true)); |
0 | 200 |
201 if (region->GetWidth() != 0 && | |
202 region->GetHeight() != 0) | |
203 { | |
204 double zoom = levels_[level].downsample_; | |
205 x = static_cast<uint64_t>(zoom * static_cast<double>(x)); | |
206 y = static_cast<uint64_t>(zoom * static_cast<double>(y)); | |
207 | |
208 that_.readRegion_(handle_, reinterpret_cast<uint32_t*>(region->GetBuffer()), | |
209 x, y, level, region->GetWidth(), region->GetHeight()); | |
210 } | |
211 | |
212 return region.release(); | |
213 } | |
214 | |
215 | |
216 OpenSlideLibrary& OpenSlideLibrary::GetInstance() | |
217 { | |
218 if (globalLibrary_.get() == NULL) | |
219 { | |
32 | 220 LOG(ERROR) << "OpenSlide has not been initialized, use the \"--openslide\" command-line option"; |
0 | 221 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
222 } | |
223 else | |
224 { | |
225 return *globalLibrary_; | |
226 } | |
227 } | |
228 | |
229 | |
230 void OpenSlideLibrary::Initialize(const std::string& path) | |
231 { | |
232 globalLibrary_.reset(new OpenSlideLibrary(path)); | |
233 } | |
234 | |
235 | |
236 void OpenSlideLibrary::Finalize() | |
237 { | |
238 globalLibrary_.reset(NULL); | |
239 } | |
240 } |