Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/ImageAccessor.cpp @ 5406:aaf7c49a9ddc am-http-compression
tentative to implement smart HTTP compression with detection of transfer syntax
author | Alain Mazy <am@osimis.io> |
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date | Sat, 04 Nov 2023 13:42:30 +0100 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 |
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24 #include "../PrecompiledHeaders.h" |
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25 #include "ImageAccessor.h" |
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26 |
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27 #include "../Logging.h" |
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28 #include "../OrthancException.h" |
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29 #include "../ChunkedBuffer.h" |
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30 |
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31 #include <stdint.h> |
860 | 32 #include <cassert> |
1397 | 33 #include <boost/lexical_cast.hpp> |
34 | |
35 | |
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36 |
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37 namespace Orthanc |
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38 { |
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39 template <typename PixelType> |
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40 static void ToMatlabStringInternal(ChunkedBuffer& target, |
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41 const ImageAccessor& source) |
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42 { |
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43 target.AddChunk("double([ "); |
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44 |
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45 const unsigned int width = source.GetWidth(); |
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46 const unsigned int height = source.GetHeight(); |
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47 |
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48 for (unsigned int y = 0; y < height; y++) |
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49 { |
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50 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y)); |
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51 |
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52 std::string s; |
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53 if (y > 0) |
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54 { |
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55 s = "; "; |
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56 } |
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57 |
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58 s.reserve(width * 8); |
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59 |
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60 for (unsigned int x = 0; x < width; x++, p++) |
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61 { |
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62 s += boost::lexical_cast<std::string>(static_cast<double>(*p)) + " "; |
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63 } |
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64 |
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65 target.AddChunk(s); |
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66 } |
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67 |
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68 target.AddChunk("])"); |
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69 } |
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70 |
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71 |
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72 static void RGB24ToMatlabString(ChunkedBuffer& target, |
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73 const ImageAccessor& source) |
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74 { |
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75 assert(source.GetFormat() == PixelFormat_RGB24); |
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76 |
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77 target.AddChunk("double(permute(reshape([ "); |
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78 |
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79 const unsigned int width = source.GetWidth(); |
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80 const unsigned int height = source.GetHeight(); |
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81 |
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82 for (unsigned int y = 0; y < height; y++) |
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83 { |
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84 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); |
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85 |
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86 std::string s; |
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87 s.reserve(width * 3 * 8); |
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88 |
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89 for (unsigned int x = 0; x < 3 * width; x++, p++) |
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90 { |
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91 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; |
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92 } |
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93 |
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94 target.AddChunk(s); |
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95 } |
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96 |
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97 target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(height) + |
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98 " " + boost::lexical_cast<std::string>(width) + " ]), [ 3 2 1 ]))"); |
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99 } |
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101 |
4300 | 102 ImageAccessor::ImageAccessor() |
103 { | |
104 AssignEmpty(PixelFormat_Grayscale8); | |
105 } | |
106 | |
107 ImageAccessor::~ImageAccessor() | |
108 { | |
109 } | |
110 | |
111 bool ImageAccessor::IsReadOnly() const | |
112 { | |
113 return readOnly_; | |
114 } | |
115 | |
116 PixelFormat ImageAccessor::GetFormat() const | |
117 { | |
118 return format_; | |
119 } | |
120 | |
121 unsigned int ImageAccessor::GetBytesPerPixel() const | |
122 { | |
123 return ::Orthanc::GetBytesPerPixel(format_); | |
124 } | |
125 | |
126 unsigned int ImageAccessor::GetWidth() const | |
127 { | |
128 return width_; | |
129 } | |
130 | |
131 unsigned int ImageAccessor::GetHeight() const | |
132 { | |
133 return height_; | |
134 } | |
135 | |
136 unsigned int ImageAccessor::GetPitch() const | |
137 { | |
138 return pitch_; | |
139 } | |
140 | |
141 unsigned int ImageAccessor::GetSize() const | |
142 { | |
143 return GetHeight() * GetPitch(); | |
144 } | |
145 | |
146 const void *ImageAccessor::GetConstBuffer() const | |
147 { | |
148 return buffer_; | |
149 } | |
150 | |
4201 | 151 void* ImageAccessor::GetBuffer() |
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152 { |
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153 if (readOnly_) |
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154 { |
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155 throw OrthancException(ErrorCode_ReadOnly, |
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156 "Trying to write to a read-only image"); |
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157 } |
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158 |
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159 return buffer_; |
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160 } |
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161 |
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162 |
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163 const void* ImageAccessor::GetConstRow(unsigned int y) const |
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164 { |
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165 if (buffer_ != NULL) |
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166 { |
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167 return buffer_ + y * pitch_; |
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168 } |
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169 else |
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170 { |
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171 return NULL; |
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172 } |
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173 } |
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174 |
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175 |
4201 | 176 void* ImageAccessor::GetRow(unsigned int y) |
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177 { |
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178 if (readOnly_) |
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179 { |
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180 throw OrthancException(ErrorCode_ReadOnly, |
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181 "Trying to write to a read-only image"); |
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182 } |
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183 |
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184 if (buffer_ != NULL) |
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185 { |
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186 return buffer_ + y * pitch_; |
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187 } |
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188 else |
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189 { |
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190 return NULL; |
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191 } |
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192 } |
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193 |
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194 |
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195 void ImageAccessor::AssignEmpty(PixelFormat format) |
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196 { |
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197 readOnly_ = false; |
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198 format_ = format; |
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199 width_ = 0; |
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200 height_ = 0; |
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201 pitch_ = 0; |
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202 buffer_ = NULL; |
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203 } |
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204 |
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205 |
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206 void ImageAccessor::AssignReadOnly(PixelFormat format, |
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207 unsigned int width, |
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208 unsigned int height, |
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209 unsigned int pitch, |
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210 const void *buffer) |
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211 { |
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212 readOnly_ = true; |
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213 format_ = format; |
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214 width_ = width; |
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215 height_ = height; |
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216 pitch_ = pitch; |
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217 buffer_ = reinterpret_cast<uint8_t*>(const_cast<void*>(buffer)); |
860 | 218 |
1916 | 219 if (GetBytesPerPixel() * width_ > pitch_) |
220 { | |
221 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
222 } | |
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223 } |
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224 |
4300 | 225 void ImageAccessor::GetReadOnlyAccessor(ImageAccessor &target) const |
226 { | |
227 target.AssignReadOnly(format_, width_, height_, pitch_, buffer_); | |
228 } | |
229 | |
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230 |
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231 void ImageAccessor::AssignWritable(PixelFormat format, |
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232 unsigned int width, |
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233 unsigned int height, |
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234 unsigned int pitch, |
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235 void *buffer) |
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236 { |
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237 readOnly_ = false; |
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238 format_ = format; |
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239 width_ = width; |
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240 height_ = height; |
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241 pitch_ = pitch; |
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242 buffer_ = reinterpret_cast<uint8_t*>(buffer); |
860 | 243 |
1916 | 244 if (GetBytesPerPixel() * width_ > pitch_) |
245 { | |
246 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
247 } | |
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248 } |
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249 |
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250 |
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251 void ImageAccessor::GetWriteableAccessor(ImageAccessor& target) const |
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252 { |
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253 if (readOnly_) |
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254 { |
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255 throw OrthancException(ErrorCode_ReadOnly); |
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256 } |
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257 else |
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258 { |
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259 target.AssignWritable(format_, width_, height_, pitch_, buffer_); |
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260 } |
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261 } |
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262 |
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263 |
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264 void ImageAccessor::ToMatlabString(std::string& target) const |
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265 { |
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266 ChunkedBuffer buffer; |
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267 |
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268 switch (GetFormat()) |
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269 { |
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270 case PixelFormat_Grayscale8: |
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271 ToMatlabStringInternal<uint8_t>(buffer, *this); |
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272 break; |
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273 |
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274 case PixelFormat_Grayscale16: |
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275 ToMatlabStringInternal<uint16_t>(buffer, *this); |
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276 break; |
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277 |
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278 case PixelFormat_Grayscale32: |
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279 ToMatlabStringInternal<uint32_t>(buffer, *this); |
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280 break; |
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281 |
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282 case PixelFormat_Grayscale64: |
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283 ToMatlabStringInternal<uint64_t>(buffer, *this); |
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284 break; |
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285 |
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286 case PixelFormat_SignedGrayscale16: |
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287 ToMatlabStringInternal<int16_t>(buffer, *this); |
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288 break; |
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289 |
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290 case PixelFormat_Float32: |
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291 ToMatlabStringInternal<float>(buffer, *this); |
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292 break; |
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293 |
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294 case PixelFormat_RGB24: |
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295 RGB24ToMatlabString(buffer, *this); |
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296 break; |
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297 |
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298 default: |
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299 throw OrthancException(ErrorCode_NotImplemented); |
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300 } |
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301 |
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302 buffer.Flatten(target); |
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303 } |
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304 |
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305 |
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306 |
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307 void ImageAccessor::GetRegion(ImageAccessor& accessor, |
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308 unsigned int x, |
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309 unsigned int y, |
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310 unsigned int width, |
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311 unsigned int height) const |
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312 { |
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313 if (x + width > width_ || |
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314 y + height > height_) |
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315 { |
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316 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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317 } |
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318 |
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319 if (width == 0 || |
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320 height == 0) |
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321 { |
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322 accessor.AssignWritable(format_, 0, 0, 0, NULL); |
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323 } |
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324 else |
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325 { |
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326 uint8_t* p = (buffer_ + |
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327 y * pitch_ + |
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328 x * GetBytesPerPixel()); |
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329 |
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330 if (readOnly_) |
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331 { |
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332 accessor.AssignReadOnly(format_, width, height, pitch_, p); |
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333 } |
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334 else |
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335 { |
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336 accessor.AssignWritable(format_, width, height, pitch_, p); |
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337 } |
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338 } |
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339 } |
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340 |
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341 |
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342 void ImageAccessor::SetFormat(PixelFormat format) |
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343 { |
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344 if (readOnly_) |
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345 { |
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346 throw OrthancException(ErrorCode_ReadOnly, |
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347 "Trying to modify the format of a read-only image"); |
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348 } |
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349 |
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350 if (::Orthanc::GetBytesPerPixel(format) != ::Orthanc::GetBytesPerPixel(format_)) |
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351 { |
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352 throw OrthancException(ErrorCode_IncompatibleImageFormat); |
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353 } |
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354 |
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355 format_ = format; |
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356 } |
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357 |
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358 |
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359 #if ORTHANC_BUILDING_FRAMEWORK_LIBRARY == 1 |
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360 void* ImageAccessor::GetBuffer() const |
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361 { |
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362 return const_cast<ImageAccessor&>(*this).GetBuffer(); |
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363 } |
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364 |
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365 void* ImageAccessor::GetRow(unsigned int y) const |
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366 { |
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367 return const_cast<ImageAccessor&>(*this).GetRow(y); |
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368 } |
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369 #endif |
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370 } |