Mercurial > hg > orthanc
annotate Plugins/Samples/GdcmDecoder/GdcmDecoderCache.cpp @ 3915:7e33516965f8 transcoding
merging sample GDCM decoder and Orthanc Web viewer
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 11 May 2020 15:13:16 +0200 |
| parents | 6110a4995ace |
| children |
| rev | line source |
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| 1834 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 1834 | 4 * Department, University Hospital of Liege, Belgium |
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Sebastien Jodogne <s.jodogne@gmail.com>
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 1834 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * 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 * General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "GdcmDecoderCache.h" | |
| 23 | |
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replacing std::auto_ptr by std::unique_ptr in GDCM sample plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
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24 #include "../../../Core/Compatibility.h" |
| 1834 | 25 |
| 26 namespace OrthancPlugins | |
| 27 { | |
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merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
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28 std::string GdcmDecoderCache::ComputeMd5(const void* dicom, |
| 1834 | 29 size_t size) |
| 30 { | |
| 31 std::string result; | |
| 32 | |
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merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3768
diff
changeset
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33 char* md5 = OrthancPluginComputeMd5(OrthancPlugins::GetGlobalContext(), dicom, size); |
| 1834 | 34 |
| 35 if (md5 == NULL) | |
| 36 { | |
| 37 throw std::runtime_error("Cannot compute MD5 hash"); | |
| 38 } | |
| 39 | |
| 40 bool ok = false; | |
| 41 try | |
| 42 { | |
| 43 result.assign(md5); | |
| 44 ok = true; | |
| 45 } | |
| 46 catch (...) | |
| 47 { | |
| 48 } | |
| 49 | |
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merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
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50 OrthancPluginFreeString(OrthancPlugins::GetGlobalContext(), md5); |
| 1834 | 51 |
| 52 if (!ok) | |
| 53 { | |
| 54 throw std::runtime_error("Not enough memory"); | |
| 55 } | |
| 56 else | |
| 57 { | |
| 58 return result; | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 | |
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merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3768
diff
changeset
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63 OrthancImage* GdcmDecoderCache::Decode(const void* dicom, |
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7e33516965f8
merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
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64 const uint32_t size, |
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7e33516965f8
merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3768
diff
changeset
|
65 uint32_t frameIndex) |
| 1834 | 66 { |
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3915
7e33516965f8
merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3768
diff
changeset
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67 std::string md5 = ComputeMd5(dicom, size); |
| 1834 | 68 |
| 69 // First check whether the previously decoded image is the same | |
| 70 // as this one | |
| 71 { | |
| 72 boost::mutex::scoped_lock lock(mutex_); | |
| 73 | |
| 74 if (decoder_.get() != NULL && | |
| 75 size_ == size && | |
| 76 md5_ == md5) | |
| 77 { | |
| 78 // This is the same image: Reuse the previous decoding | |
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merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3768
diff
changeset
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79 return new OrthancImage(decoder_->Decode(frameIndex)); |
| 1834 | 80 } |
| 81 } | |
| 82 | |
| 83 // This is not the same image | |
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3768
6110a4995ace
replacing std::auto_ptr by std::unique_ptr in GDCM sample plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3640
diff
changeset
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84 std::unique_ptr<GdcmImageDecoder> decoder(new GdcmImageDecoder(dicom, size)); |
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7e33516965f8
merging sample GDCM decoder and Orthanc Web viewer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3768
diff
changeset
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85 std::unique_ptr<OrthancImage> image(new OrthancImage(decoder->Decode(frameIndex))); |
| 1834 | 86 |
| 87 { | |
| 88 // Cache the newly created decoder for further use | |
| 89 boost::mutex::scoped_lock lock(mutex_); | |
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3768
6110a4995ace
replacing std::auto_ptr by std::unique_ptr in GDCM sample plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
3640
diff
changeset
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90 decoder_.reset(decoder.release()); |
| 1834 | 91 size_ = size; |
| 92 md5_ = md5; | |
| 93 } | |
| 94 | |
| 1837 | 95 return image.release(); |
| 1834 | 96 } |
| 97 } |