Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Oracle/GetOrthancImageCommand.cpp @ 1518:433cf964838d
prevents random config. names + typofix + doc
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Fri, 31 Jul 2020 12:47:27 +0200 |
parents | 244ad1e4e76a |
children | 85e117739eca |
rev | line source |
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746 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
746 | 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 "GetOrthancImageCommand.h" | |
23 | |
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24 #include <Images/JpegReader.h> |
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25 #include <Images/PamReader.h> |
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26 #include <Images/PngReader.h> |
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27 #include <OrthancException.h> |
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28 #include <Toolbox.h> |
746 | 29 |
30 namespace OrthancStone | |
31 { | |
32 GetOrthancImageCommand::GetOrthancImageCommand() : | |
33 uri_("/"), | |
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34 timeout_(600), |
746 | 35 hasExpectedFormat_(false) |
36 { | |
37 } | |
38 | |
39 | |
40 void GetOrthancImageCommand::SetExpectedPixelFormat(Orthanc::PixelFormat format) | |
41 { | |
42 hasExpectedFormat_ = true; | |
43 expectedFormat_ = format; | |
44 } | |
45 | |
46 | |
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47 static std::string GetFormatSuffix(Orthanc::PixelFormat pixelFormat) |
746 | 48 { |
49 switch (pixelFormat) | |
50 { | |
51 case Orthanc::PixelFormat_RGB24: | |
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52 return "preview"; |
746 | 53 |
54 case Orthanc::PixelFormat_Grayscale16: | |
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55 return "image-uint16"; |
746 | 56 |
57 case Orthanc::PixelFormat_SignedGrayscale16: | |
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58 return "image-int16"; |
746 | 59 |
60 default: | |
61 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
62 } | |
63 } | |
64 | |
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65 |
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66 void GetOrthancImageCommand::SetInstanceUri(const std::string& instance, |
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67 Orthanc::PixelFormat pixelFormat) |
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68 { |
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69 uri_ = "/instances/" + instance + "/" + GetFormatSuffix(pixelFormat); |
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70 } |
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71 |
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72 |
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73 void GetOrthancImageCommand::SetFrameUri(const std::string& instance, |
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74 unsigned int frame, |
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75 Orthanc::PixelFormat pixelFormat) |
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76 { |
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77 uri_ = ("/instances/" + instance + "/frames/" + |
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78 boost::lexical_cast<std::string>(frame) + "/" + GetFormatSuffix(pixelFormat)); |
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79 } |
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80 |
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81 |
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82 void GetOrthancImageCommand::ProcessHttpAnswer(boost::weak_ptr<IObserver> receiver, |
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83 IMessageEmitter& emitter, |
746 | 84 const std::string& answer, |
85 const HttpHeaders& answerHeaders) const | |
86 { | |
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87 for (HttpHeaders::const_iterator it = answerHeaders.begin(); it != answerHeaders.end(); ++it) |
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88 { |
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89 std::string key = Orthanc::Toolbox::StripSpaces(it->first); |
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90 Orthanc::Toolbox::ToLowerCase(key); |
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91 |
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92 if (key == "content-disposition" && |
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93 it->second == "filename=\"unsupported.png\"") |
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94 { |
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95 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat, |
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96 "Orthanc cannot decode this image"); |
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97 } |
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98 } |
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99 |
746 | 100 Orthanc::MimeType contentType = Orthanc::MimeType_Binary; |
101 | |
102 for (HttpHeaders::const_iterator it = answerHeaders.begin(); | |
103 it != answerHeaders.end(); ++it) | |
104 { | |
105 std::string s; | |
106 Orthanc::Toolbox::ToLowerCase(s, it->first); | |
107 | |
108 if (s == "content-type") | |
109 { | |
110 contentType = Orthanc::StringToMimeType(it->second); | |
111 break; | |
112 } | |
113 } | |
114 | |
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115 std::unique_ptr<Orthanc::ImageAccessor> image; |
746 | 116 |
117 switch (contentType) | |
118 { | |
119 case Orthanc::MimeType_Png: | |
120 { | |
121 image.reset(new Orthanc::PngReader); | |
122 dynamic_cast<Orthanc::PngReader&>(*image).ReadFromMemory(answer); | |
123 break; | |
124 } | |
125 | |
126 case Orthanc::MimeType_Pam: | |
127 { | |
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128 #ifdef __EMSCRIPTEN__ |
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129 // "true" means we ask the PamReader to make an extra copy so that |
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130 // the resulting Orthanc::ImageAccessor is aligned (as malloc is). |
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131 // Indeed, even though alignment is not required in Web Assembly, |
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132 // Emscripten seems to check it and bail out if addresses are "odd" |
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133 image.reset(new Orthanc::PamReader(true)); |
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134 #else |
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135 // potentially unaligned, with is faster and consumes less heap memory |
746 | 136 image.reset(new Orthanc::PamReader); |
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137 #endif |
746 | 138 dynamic_cast<Orthanc::PamReader&>(*image).ReadFromMemory(answer); |
139 break; | |
140 } | |
141 | |
142 case Orthanc::MimeType_Jpeg: | |
143 { | |
144 image.reset(new Orthanc::JpegReader); | |
145 dynamic_cast<Orthanc::JpegReader&>(*image).ReadFromMemory(answer); | |
146 break; | |
147 } | |
148 | |
149 default: | |
150 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol, | |
151 "Unsupported HTTP Content-Type for an image: " + | |
152 std::string(Orthanc::EnumerationToString(contentType))); | |
153 } | |
154 | |
155 if (hasExpectedFormat_) | |
156 { | |
157 if (expectedFormat_ == Orthanc::PixelFormat_SignedGrayscale16 && | |
158 image->GetFormat() == Orthanc::PixelFormat_Grayscale16) | |
159 { | |
160 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); | |
161 } | |
162 | |
163 if (expectedFormat_ != image->GetFormat()) | |
164 { | |
165 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
166 } | |
167 } | |
168 | |
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169 //{ |
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170 // // DEBUG DISPLAY IMAGE PROPERTIES BGO 2020-04-11 |
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171 // const Orthanc::ImageAccessor& source = *image; |
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172 // const void* sourceBuffer = source.GetConstBuffer(); |
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173 // intptr_t sourceBufferInt = reinterpret_cast<intptr_t>(sourceBuffer); |
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174 // int sourceWidth = source.GetWidth(); |
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175 // int sourceHeight = source.GetHeight(); |
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176 // int sourcePitch = source.GetPitch(); |
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177 |
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178 // // TODO: turn error into trace below |
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179 // LOG(ERROR) << "GetOrthancImageCommand::ProcessHttpAnswer | source:" |
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180 // << " W = " << sourceWidth << " H = " << sourceHeight |
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181 // << " P = " << sourcePitch << " B = " << sourceBufferInt |
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182 // << " B % 4 == " << sourceBufferInt % 4; |
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183 //} |
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184 |
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185 |
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186 SuccessMessage message(*this, *image, contentType); |
746 | 187 emitter.EmitMessage(receiver, message); |
188 } | |
189 } |