Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/OpenSlideLibrary.cpp @ 172:11413cc2b9d6
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 02 Aug 2019 17:42:09 +0200 |
| parents | 6b8ccfc02051 |
| children | e3cbf890b588 |
| rev | line source |
|---|---|
| 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 | |
| 157 | 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
|
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22 #include "../PrecompiledHeadersWSI.h" |
| 0 | 23 #include "OpenSlideLibrary.h" |
| 24 | |
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25 #include <Core/Logging.h> |
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26 #include <Core/Images/Image.h> |
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27 #include <Core/OrthancException.h> |
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28 |
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29 #include <memory> |
| 0 | 30 |
| 31 namespace OrthancWSI | |
| 32 { | |
| 33 static std::auto_ptr<OpenSlideLibrary> globalLibrary_; | |
| 34 | |
| 35 | |
| 36 OpenSlideLibrary::OpenSlideLibrary(const std::string& path) : | |
| 37 library_(path) | |
| 38 { | |
| 39 close_ = (FunctionClose) library_.GetFunction("openslide_close"); | |
| 40 getLevelCount_ = (FunctionGetLevelCount) library_.GetFunction("openslide_get_level_count"); | |
| 41 getLevelDimensions_ = (FunctionGetLevelDimensions) library_.GetFunction("openslide_get_level_dimensions"); | |
| 42 getLevelDownsample_ = (FunctionGetLevelDownsample) library_.GetFunction("openslide_get_level_downsample"); | |
| 43 open_ = (FunctionOpen) library_.GetFunction("openslide_open"); | |
| 44 readRegion_ = (FunctionReadRegion) library_.GetFunction("openslide_read_region"); | |
| 45 } | |
| 46 | |
| 47 | |
| 48 OpenSlideLibrary::Image::Level::Level() : | |
| 49 width_(0), | |
| 50 height_(0), | |
| 51 downsample_(1) | |
| 52 { | |
| 53 } | |
| 54 | |
| 55 | |
| 56 OpenSlideLibrary::Image::Level::Level(int64_t width, | |
| 57 int64_t height, | |
| 58 double downsample) : | |
| 59 width_(static_cast<unsigned int>(width)), | |
| 60 height_(static_cast<unsigned int>(height)), | |
| 61 downsample_(downsample) | |
| 62 { | |
| 63 if (width < 0 || | |
| 64 height < 0 || | |
| 65 downsample <= 0) | |
| 66 { | |
| 67 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 68 } | |
| 69 | |
| 70 if (static_cast<int64_t>(width_) != width || | |
| 71 static_cast<int64_t>(height_) != height) | |
| 72 { | |
| 73 LOG(ERROR) << "The whole-slide image is too large"; | |
| 74 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 | |
| 79 void OpenSlideLibrary::Image::Initialize(const std::string& path) | |
| 80 { | |
| 81 handle_ = that_.open_(path.c_str()); | |
| 82 if (handle_ == NULL) | |
| 83 { | |
| 84 LOG(ERROR) << "Cannot open an image with OpenSlide: " << path; | |
| 85 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 86 } | |
| 87 | |
| 88 try | |
| 89 { | |
| 90 LOG(INFO) << "Opening an image with OpenSlide: " << path; | |
| 91 | |
| 92 int32_t tmp = that_.getLevelCount_(handle_); | |
| 93 if (tmp <= 0) | |
| 94 { | |
| 95 LOG(ERROR) << "Image with no pyramid level"; | |
| 96 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 97 } | |
| 98 | |
| 99 levels_.resize(tmp); | |
| 100 | |
| 101 for (int32_t level = 0; level < tmp; level++) | |
| 102 { | |
| 103 int64_t width, height; | |
| 104 that_.getLevelDimensions_(handle_, level, &width, &height); | |
| 105 | |
| 106 double downsample = that_.getLevelDownsample_(handle_, level); | |
| 107 | |
| 108 levels_[level] = Level(width, height, downsample); | |
| 109 } | |
| 110 | |
| 111 for (size_t i = 1; i < levels_.size(); i++) | |
| 112 { | |
| 113 if (levels_[i].width_ >= levels_[i - 1].width_ || | |
| 114 levels_[i].height_ >= levels_[i - 1].height_) | |
| 115 { | |
| 116 // This is not a pyramid with levels of decreasing sizes | |
| 117 // (level "0" must be the finest level) | |
| 118 LOG(ERROR) << "The pyramid does not have levels of strictly decreasing sizes"; | |
| 119 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 120 } | |
| 121 } | |
| 122 } | |
| 123 catch (Orthanc::OrthancException&) | |
| 124 { | |
| 125 Close(); | |
| 126 throw; | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 | |
| 131 OpenSlideLibrary::Image::Image(OpenSlideLibrary& that, | |
| 132 const std::string& path) : | |
| 133 that_(that), | |
| 134 handle_(NULL) | |
| 135 { | |
| 136 Initialize(path); | |
| 137 } | |
| 138 | |
| 139 | |
| 140 OpenSlideLibrary::Image::Image(const std::string& path) : | |
| 141 that_(OpenSlideLibrary::GetInstance()), | |
| 142 handle_(NULL) | |
| 143 { | |
| 144 Initialize(path); | |
| 145 } | |
| 146 | |
| 147 | |
| 148 void OpenSlideLibrary::Image::Close() | |
| 149 { | |
| 150 if (handle_ != NULL) | |
| 151 { | |
| 152 that_.close_(handle_); | |
| 153 handle_ = NULL; | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 | |
| 158 void OpenSlideLibrary::Image::CheckLevel(unsigned int level) const | |
| 159 { | |
| 160 if (level >= levels_.size()) | |
| 161 { | |
| 162 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 | |
| 167 double OpenSlideLibrary::Image::GetLevelDownsample(unsigned int level) const | |
| 168 { | |
| 169 CheckLevel(level); | |
| 170 return levels_[level].downsample_; | |
| 171 } | |
| 172 | |
| 173 | |
| 174 unsigned int OpenSlideLibrary::Image::GetLevelWidth(unsigned int level) const | |
| 175 { | |
| 176 CheckLevel(level); | |
| 177 return levels_[level].width_; | |
| 178 } | |
| 179 | |
| 180 | |
| 181 unsigned int OpenSlideLibrary::Image::GetLevelHeight(unsigned int level) const | |
| 182 { | |
| 183 CheckLevel(level); | |
| 184 return levels_[level].height_; | |
| 185 } | |
| 186 | |
| 187 | |
| 188 Orthanc::ImageAccessor* OpenSlideLibrary::Image::ReadRegion(unsigned int level, | |
| 189 uint64_t x, | |
| 190 uint64_t y, | |
| 191 unsigned int width, | |
| 192 unsigned int height) | |
| 193 { | |
| 194 CheckLevel(level); | |
| 195 | |
| 196 // Create a new image, with minimal pitch so as to be compatible with OpenSlide API | |
|
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197 std::auto_ptr<Orthanc::ImageAccessor> region(new Orthanc::Image(Orthanc::PixelFormat_BGRA32, width, height, true)); |
| 0 | 198 |
| 199 if (region->GetWidth() != 0 && | |
| 200 region->GetHeight() != 0) | |
| 201 { | |
| 202 double zoom = levels_[level].downsample_; | |
| 203 x = static_cast<uint64_t>(zoom * static_cast<double>(x)); | |
| 204 y = static_cast<uint64_t>(zoom * static_cast<double>(y)); | |
| 205 | |
| 206 that_.readRegion_(handle_, reinterpret_cast<uint32_t*>(region->GetBuffer()), | |
| 207 x, y, level, region->GetWidth(), region->GetHeight()); | |
| 208 } | |
| 209 | |
| 210 return region.release(); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 OpenSlideLibrary& OpenSlideLibrary::GetInstance() | |
| 215 { | |
| 216 if (globalLibrary_.get() == NULL) | |
| 217 { | |
| 32 | 218 LOG(ERROR) << "OpenSlide has not been initialized, use the \"--openslide\" command-line option"; |
| 0 | 219 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 220 } | |
| 221 else | |
| 222 { | |
| 223 return *globalLibrary_; | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 | |
| 228 void OpenSlideLibrary::Initialize(const std::string& path) | |
| 229 { | |
| 230 globalLibrary_.reset(new OpenSlideLibrary(path)); | |
| 231 } | |
| 232 | |
| 233 | |
| 234 void OpenSlideLibrary::Finalize() | |
| 235 { | |
| 236 globalLibrary_.reset(NULL); | |
| 237 } | |
| 238 } |