Mercurial > hg > orthanc-stone
comparison Framework/Layers/OrthancFrameLayerSource.cpp @ 65:885932a893de wasm
OrthancFrameLayerSource
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 16 May 2017 22:12:41 +0200 |
parents | |
children | 298f375dcb68 |
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64:394e63010e02 | 65:885932a893de |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017 Osimis, Belgium | |
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 | |
22 #include "OrthancFrameLayerSource.h" | |
23 | |
24 #include "FrameRenderer.h" | |
25 #include "../../Resources/Orthanc/Core/Images/PngReader.h" | |
26 #include "../../Resources/Orthanc/Core/Logging.h" | |
27 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
28 #include "../Toolbox/DicomFrameConverter.h" | |
29 | |
30 #include <boost/lexical_cast.hpp> | |
31 | |
32 | |
33 namespace OrthancStone | |
34 { | |
35 class OrthancFrameLayerSource::Operation : public Orthanc::IDynamicObject | |
36 { | |
37 private: | |
38 Content content_; | |
39 SliceGeometry viewportSlice_; | |
40 | |
41 public: | |
42 Operation(Content content) : content_(content) | |
43 { | |
44 } | |
45 | |
46 void SetViewportSlice(const SliceGeometry& slice) | |
47 { | |
48 viewportSlice_ = slice; | |
49 } | |
50 | |
51 const SliceGeometry& GetViewportSlice() const | |
52 { | |
53 return viewportSlice_; | |
54 } | |
55 | |
56 Content GetContent() const | |
57 { | |
58 return content_; | |
59 } | |
60 }; | |
61 | |
62 | |
63 OrthancFrameLayerSource::OrthancFrameLayerSource(IWebService& orthanc, | |
64 const std::string& instanceId, | |
65 unsigned int frame) : | |
66 orthanc_(orthanc), | |
67 instanceId_(instanceId), | |
68 frame_(frame) | |
69 { | |
70 orthanc_.ScheduleGetRequest(*this, | |
71 "/instances/" + instanceId + "/tags", | |
72 new Operation(Content_Tags)); | |
73 } | |
74 | |
75 | |
76 void OrthancFrameLayerSource::SetObserver(IObserver& observer) | |
77 { | |
78 LayerSourceBase::SetObserver(observer); | |
79 | |
80 if (dataset_.get() != NULL) | |
81 { | |
82 NotifySourceChange(); | |
83 } | |
84 } | |
85 | |
86 void OrthancFrameLayerSource::NotifyError(const std::string& uri, | |
87 Orthanc::IDynamicObject* payload) | |
88 { | |
89 LOG(ERROR) << "Cannot download " << uri; | |
90 } | |
91 | |
92 void OrthancFrameLayerSource::NotifySuccess(const std::string& uri, | |
93 const void* answer, | |
94 size_t answerSize, | |
95 Orthanc::IDynamicObject* payload) | |
96 { | |
97 std::auto_ptr<Operation> operation(reinterpret_cast<Operation*>(payload)); | |
98 | |
99 if (operation.get() == NULL) | |
100 { | |
101 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
102 } | |
103 else if (operation->GetContent() == Content_Tags) | |
104 { | |
105 dataset_.reset(new OrthancPlugins::FullOrthancDataset(answer, answerSize)); | |
106 | |
107 DicomFrameConverter converter; | |
108 converter.ReadParameters(*dataset_); | |
109 format_ = converter.GetExpectedPixelFormat(); | |
110 | |
111 NotifySourceChange(); | |
112 } | |
113 else if (operation->GetContent() == Content_Frame) | |
114 { | |
115 std::auto_ptr<Orthanc::PngReader> image(new Orthanc::PngReader); | |
116 image->ReadFromMemory(answer, answerSize); | |
117 | |
118 if (format_ == Orthanc::PixelFormat_SignedGrayscale16) | |
119 { | |
120 if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16) | |
121 { | |
122 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); | |
123 } | |
124 else | |
125 { | |
126 NotifyLayerReady(NULL, *this, operation->GetViewportSlice()); | |
127 } | |
128 } | |
129 | |
130 SliceGeometry frameSlice(*dataset_); | |
131 NotifyLayerReady(FrameRenderer::CreateRenderer(image.release(), | |
132 operation->GetViewportSlice(), | |
133 frameSlice, *dataset_, 1, 1, true), | |
134 *this, operation->GetViewportSlice()); | |
135 } | |
136 else | |
137 { | |
138 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
139 } | |
140 } | |
141 | |
142 | |
143 bool OrthancFrameLayerSource::GetExtent(double& x1, | |
144 double& y1, | |
145 double& x2, | |
146 double& y2, | |
147 const SliceGeometry& viewportSlice /* ignored */) | |
148 { | |
149 if (dataset_.get() == NULL) | |
150 { | |
151 return false; | |
152 } | |
153 else | |
154 { | |
155 // Assume that PixelSpacingX == PixelSpacingY == 1 | |
156 | |
157 OrthancPlugins::DicomDatasetReader reader(*dataset_); | |
158 | |
159 unsigned int width, height; | |
160 | |
161 if (!reader.GetUnsignedIntegerValue(width, OrthancPlugins::DICOM_TAG_COLUMNS) || | |
162 !reader.GetUnsignedIntegerValue(height, OrthancPlugins::DICOM_TAG_ROWS)) | |
163 { | |
164 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
165 } | |
166 | |
167 x1 = 0; | |
168 y1 = 0; | |
169 x2 = static_cast<double>(width); | |
170 y2 = static_cast<double>(height); | |
171 | |
172 return true; | |
173 } | |
174 } | |
175 | |
176 | |
177 void OrthancFrameLayerSource::ScheduleLayerCreation(const SliceGeometry& viewportSlice) | |
178 { | |
179 if (dataset_.get() == NULL) | |
180 { | |
181 NotifyLayerReady(NULL, *this, viewportSlice); | |
182 } | |
183 else | |
184 { | |
185 std::string uri = ("/instances/" + instanceId_ + "/frames/" + | |
186 boost::lexical_cast<std::string>(frame_)); | |
187 | |
188 std::string compressed; | |
189 | |
190 switch (format_) | |
191 { | |
192 case Orthanc::PixelFormat_RGB24: | |
193 uri += "/preview"; | |
194 break; | |
195 | |
196 case Orthanc::PixelFormat_Grayscale16: | |
197 uri += "/image-uint16"; | |
198 break; | |
199 | |
200 case Orthanc::PixelFormat_SignedGrayscale16: | |
201 uri += "/image-int16"; | |
202 break; | |
203 | |
204 default: | |
205 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
206 } | |
207 | |
208 std::auto_ptr<Operation> operation(new Operation(Content_Frame)); | |
209 operation->SetViewportSlice(viewportSlice); | |
210 orthanc_.ScheduleGetRequest(*this, uri, operation.release()); | |
211 } | |
212 } | |
213 } |