Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/RawTile.cpp @ 305:ec2c2ea026c0
cont
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 26 Jan 2024 17:59:53 +0100 |
| parents | ac1508b438b1 |
| children | 7020852a8fa9 |
| rev | line source |
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| 260 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017-2023 Osimis S.A., Belgium | |
| 6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium | |
| 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 | |
| 23 #include "../Framework/PrecompiledHeadersWSI.h" | |
| 24 #include "RawTile.h" | |
| 25 | |
| 26 #include "../Framework/ImageToolbox.h" | |
| 27 #include "../Framework/Jpeg2000Reader.h" | |
| 28 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h" | |
| 29 | |
| 30 #include <Compatibility.h> // For std::unique_ptr | |
| 31 #include <Images/JpegReader.h> | |
| 32 #include <Images/JpegWriter.h> | |
| 33 #include <Images/PngWriter.h> | |
| 34 #include <MultiThreading/Semaphore.h> | |
| 35 #include <OrthancException.h> | |
| 36 | |
| 37 | |
| 38 static std::unique_ptr<Orthanc::Semaphore> transcoderSemaphore_; | |
| 39 | |
| 261 | 40 namespace OrthancWSI |
| 260 | 41 { |
|
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42 static ImageCompression Convert(Orthanc::MimeType type) |
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43 { |
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44 switch (type) |
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45 { |
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46 case Orthanc::MimeType_Png: |
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47 return ImageCompression_Png; |
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48 |
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49 case Orthanc::MimeType_Jpeg: |
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50 return ImageCompression_Jpeg; |
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51 |
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52 case Orthanc::MimeType_Jpeg2000: |
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53 return ImageCompression_Jpeg2000; |
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54 |
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55 default: |
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56 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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57 } |
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58 } |
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59 |
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60 |
| 261 | 61 Orthanc::ImageAccessor* RawTile::DecodeInternal() |
| 260 | 62 { |
| 261 | 63 switch (compression_) |
| 260 | 64 { |
| 261 | 65 case ImageCompression_Jpeg: |
| 260 | 66 { |
| 261 | 67 std::unique_ptr<Orthanc::JpegReader> decoded(new Orthanc::JpegReader); |
| 68 decoded->ReadFromMemory(tile_); | |
| 69 return decoded.release(); | |
| 260 | 70 } |
| 71 | |
| 261 | 72 case ImageCompression_Jpeg2000: |
| 73 { | |
| 74 std::unique_ptr<Jpeg2000Reader> decoded(new Jpeg2000Reader); | |
| 75 decoded->ReadFromMemory(tile_); | |
| 260 | 76 |
| 261 | 77 if (photometric_ == Orthanc::PhotometricInterpretation_YBR_ICT) |
| 78 { | |
| 79 ImageToolbox::ConvertJpegYCbCrToRgb(*decoded); | |
| 80 } | |
| 81 | |
| 82 return decoded.release(); | |
| 260 | 83 } |
| 84 | |
| 261 | 85 case ImageCompression_None: |
| 86 { | |
| 87 unsigned int bpp = Orthanc::GetBytesPerPixel(format_); | |
| 88 if (bpp * tileWidth_ * tileHeight_ != tile_.size()) | |
| 89 { | |
| 90 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 91 } | |
| 260 | 92 |
| 261 | 93 std::unique_ptr<Orthanc::ImageAccessor> decoded(new Orthanc::ImageAccessor); |
| 94 decoded->AssignReadOnly(format_, tileWidth_, tileHeight_, bpp * tileWidth_, tile_.c_str()); | |
| 95 | |
| 96 return decoded.release(); | |
| 97 } | |
| 98 | |
| 99 default: | |
| 100 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 260 | 101 } |
| 102 } | |
| 103 | |
| 261 | 104 void RawTile::EncodeInternal(std::string& encoded, |
| 105 const Orthanc::ImageAccessor& decoded, | |
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106 Orthanc::MimeType encoding) |
| 260 | 107 { |
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108 ImageToolbox::EncodeTile(encoded, decoded, Convert(encoding), 90 /* only used for JPEG */); |
| 260 | 109 } |
| 110 | |
| 111 | |
| 261 | 112 RawTile::RawTile(ITiledPyramid& pyramid, |
| 113 unsigned int level, | |
| 114 unsigned int tileX, | |
| 115 unsigned int tileY) : | |
| 116 format_(pyramid.GetPixelFormat()), | |
| 117 tileWidth_(pyramid.GetTileWidth(level)), | |
| 118 tileHeight_(pyramid.GetTileHeight(level)), | |
| 119 photometric_(pyramid.GetPhotometricInterpretation()) | |
| 260 | 120 { |
| 261 | 121 if (!pyramid.ReadRawTile(tile_, compression_, level, tileX, tileY)) |
| 122 { | |
| 123 // Handling of missing tile (for sparse tiling): TODO parameter? | |
| 124 // AnswerSparseTile(output, tileWidth, tileHeight); return; | |
| 125 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); | |
| 126 } | |
| 260 | 127 } |
| 128 | |
| 129 | |
| 261 | 130 void RawTile::Answer(OrthancPluginRestOutput* output, |
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131 Orthanc::MimeType encoding) |
| 260 | 132 { |
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133 if ((compression_ == ImageCompression_Jpeg && encoding == Orthanc::MimeType_Jpeg) || |
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134 (compression_ == ImageCompression_Jpeg2000 && encoding == Orthanc::MimeType_Jpeg2000)) |
| 261 | 135 { |
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136 // No transcoding is needed, the tile can be served as such |
| 261 | 137 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, tile_.c_str(), |
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138 tile_.size(), Orthanc::EnumerationToString(encoding)); |
| 261 | 139 } |
| 140 else | |
| 260 | 141 { |
| 261 | 142 std::string transcoded; |
| 143 | |
| 144 { | |
| 145 // The semaphore is used to throttle the number of simultaneous computations | |
| 146 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); | |
| 147 | |
| 148 std::unique_ptr<Orthanc::ImageAccessor> decoded(DecodeInternal()); | |
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149 EncodeInternal(transcoded, *decoded, encoding); |
| 261 | 150 } |
| 151 | |
| 152 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, transcoded.c_str(), | |
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153 transcoded.size(), Orthanc::EnumerationToString(encoding)); |
| 261 | 154 } |
| 155 } | |
| 156 | |
| 260 | 157 |
| 261 | 158 Orthanc::ImageAccessor* RawTile::Decode() |
| 159 { | |
| 160 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); | |
| 161 return DecodeInternal(); | |
| 162 } | |
| 163 | |
| 260 | 164 |
| 261 | 165 void RawTile::Encode(std::string& encoded, |
| 166 const Orthanc::ImageAccessor& decoded, | |
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167 Orthanc::MimeType encoding) |
| 261 | 168 { |
| 169 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); | |
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170 EncodeInternal(encoded, decoded, encoding); |
| 261 | 171 } |
| 172 | |
| 173 | |
| 174 void RawTile::InitializeTranscoderSemaphore(unsigned int maxThreads) | |
| 175 { | |
| 176 transcoderSemaphore_.reset(new Orthanc::Semaphore(maxThreads)); | |
| 177 } | |
| 178 | |
| 179 | |
| 180 void RawTile::FinalizeTranscoderSemaphore() | |
| 181 { | |
| 182 transcoderSemaphore_.reset(NULL); | |
| 260 | 183 } |
| 184 } |