Mercurial > hg > orthanc-stone
annotate Resources/Orthanc/Core/Images/ImageAccessor.cpp @ 54:01aa453d4d5b wasm
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 27 Apr 2017 17:49:29 +0200 |
| parents | 7207a407bcd8 |
| children |
| rev | line source |
|---|---|
| 1 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
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7207a407bcd8
shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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changeset
|
5 * Copyright (C) 2017 Osimis, Belgium |
| 1 | 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 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #include "../PrecompiledHeaders.h" | |
| 35 #include "ImageAccessor.h" | |
| 36 | |
| 37 #include "../Logging.h" | |
| 38 #include "../OrthancException.h" | |
| 39 #include "../ChunkedBuffer.h" | |
| 40 | |
| 41 #include <stdint.h> | |
| 42 #include <cassert> | |
| 43 #include <boost/lexical_cast.hpp> | |
| 44 | |
| 45 | |
| 46 | |
| 47 namespace Orthanc | |
| 48 { | |
| 49 template <typename PixelType> | |
| 50 static void ToMatlabStringInternal(ChunkedBuffer& target, | |
| 51 const ImageAccessor& source) | |
| 52 { | |
| 53 target.AddChunk("double([ "); | |
| 54 | |
| 55 for (unsigned int y = 0; y < source.GetHeight(); y++) | |
| 56 { | |
| 57 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y)); | |
| 58 | |
| 59 std::string s; | |
| 60 if (y > 0) | |
| 61 { | |
| 62 s = "; "; | |
| 63 } | |
| 64 | |
| 65 s.reserve(source.GetWidth() * 8); | |
| 66 | |
| 67 for (unsigned int x = 0; x < source.GetWidth(); x++, p++) | |
| 68 { | |
| 69 s += boost::lexical_cast<std::string>(static_cast<double>(*p)) + " "; | |
| 70 } | |
| 71 | |
| 72 target.AddChunk(s); | |
| 73 } | |
| 74 | |
| 75 target.AddChunk("])"); | |
| 76 } | |
| 77 | |
| 78 | |
| 79 static void RGB24ToMatlabString(ChunkedBuffer& target, | |
| 80 const ImageAccessor& source) | |
| 81 { | |
| 82 assert(source.GetFormat() == PixelFormat_RGB24); | |
| 83 | |
| 84 target.AddChunk("double(permute(reshape([ "); | |
| 85 | |
| 86 for (unsigned int y = 0; y < source.GetHeight(); y++) | |
| 87 { | |
| 88 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); | |
| 89 | |
| 90 std::string s; | |
| 91 s.reserve(source.GetWidth() * 3 * 8); | |
| 92 | |
| 93 for (unsigned int x = 0; x < 3 * source.GetWidth(); x++, p++) | |
| 94 { | |
| 95 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; | |
| 96 } | |
| 97 | |
| 98 target.AddChunk(s); | |
| 99 } | |
| 100 | |
| 101 target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(source.GetHeight()) + | |
| 102 " " + boost::lexical_cast<std::string>(source.GetWidth()) + " ]), [ 3 2 1 ]))"); | |
| 103 } | |
| 104 | |
| 105 | |
| 106 void* ImageAccessor::GetBuffer() const | |
| 107 { | |
| 108 if (readOnly_) | |
| 109 { | |
| 110 #if ORTHANC_ENABLE_LOGGING == 1 | |
| 111 LOG(ERROR) << "Trying to write on a read-only image"; | |
| 112 #endif | |
| 113 | |
| 114 throw OrthancException(ErrorCode_ReadOnly); | |
| 115 } | |
| 116 | |
| 117 return buffer_; | |
| 118 } | |
| 119 | |
| 120 | |
| 121 const void* ImageAccessor::GetConstRow(unsigned int y) const | |
| 122 { | |
| 123 if (buffer_ != NULL) | |
| 124 { | |
| 125 return buffer_ + y * pitch_; | |
| 126 } | |
| 127 else | |
| 128 { | |
| 129 return NULL; | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 | |
| 134 void* ImageAccessor::GetRow(unsigned int y) const | |
| 135 { | |
| 136 if (readOnly_) | |
| 137 { | |
| 138 #if ORTHANC_ENABLE_LOGGING == 1 | |
| 139 LOG(ERROR) << "Trying to write on a read-only image"; | |
| 140 #endif | |
| 141 | |
| 142 throw OrthancException(ErrorCode_ReadOnly); | |
| 143 } | |
| 144 | |
| 145 if (buffer_ != NULL) | |
| 146 { | |
| 147 return buffer_ + y * pitch_; | |
| 148 } | |
| 149 else | |
| 150 { | |
| 151 return NULL; | |
| 152 } | |
| 153 } | |
| 154 | |
| 155 | |
| 156 void ImageAccessor::AssignEmpty(PixelFormat format) | |
| 157 { | |
| 158 readOnly_ = false; | |
| 159 format_ = format; | |
| 160 width_ = 0; | |
| 161 height_ = 0; | |
| 162 pitch_ = 0; | |
| 163 buffer_ = NULL; | |
| 164 } | |
| 165 | |
| 166 | |
| 167 void ImageAccessor::AssignReadOnly(PixelFormat format, | |
| 168 unsigned int width, | |
| 169 unsigned int height, | |
| 170 unsigned int pitch, | |
| 171 const void *buffer) | |
| 172 { | |
| 173 readOnly_ = true; | |
| 174 format_ = format; | |
| 175 width_ = width; | |
| 176 height_ = height; | |
| 177 pitch_ = pitch; | |
| 178 buffer_ = reinterpret_cast<uint8_t*>(const_cast<void*>(buffer)); | |
| 179 | |
| 180 if (GetBytesPerPixel() * width_ > pitch_) | |
| 181 { | |
| 182 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 | |
| 187 void ImageAccessor::AssignWritable(PixelFormat format, | |
| 188 unsigned int width, | |
| 189 unsigned int height, | |
| 190 unsigned int pitch, | |
| 191 void *buffer) | |
| 192 { | |
| 193 readOnly_ = false; | |
| 194 format_ = format; | |
| 195 width_ = width; | |
| 196 height_ = height; | |
| 197 pitch_ = pitch; | |
| 198 buffer_ = reinterpret_cast<uint8_t*>(buffer); | |
| 199 | |
| 200 if (GetBytesPerPixel() * width_ > pitch_) | |
| 201 { | |
| 202 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 | |
| 207 void ImageAccessor::ToMatlabString(std::string& target) const | |
| 208 { | |
| 209 ChunkedBuffer buffer; | |
| 210 | |
| 211 switch (GetFormat()) | |
| 212 { | |
| 213 case PixelFormat_Grayscale8: | |
| 214 ToMatlabStringInternal<uint8_t>(buffer, *this); | |
| 215 break; | |
| 216 | |
| 217 case PixelFormat_Grayscale16: | |
| 218 ToMatlabStringInternal<uint16_t>(buffer, *this); | |
| 219 break; | |
| 220 | |
| 221 case PixelFormat_SignedGrayscale16: | |
| 222 ToMatlabStringInternal<int16_t>(buffer, *this); | |
| 223 break; | |
| 224 | |
| 225 case PixelFormat_Float32: | |
| 226 ToMatlabStringInternal<float>(buffer, *this); | |
| 227 break; | |
| 228 | |
| 229 case PixelFormat_RGB24: | |
| 230 RGB24ToMatlabString(buffer, *this); | |
| 231 break; | |
| 232 | |
| 233 default: | |
| 234 throw OrthancException(ErrorCode_NotImplemented); | |
| 235 } | |
| 236 | |
| 237 buffer.Flatten(target); | |
| 238 } | |
| 239 | |
| 240 | |
| 241 | |
| 242 ImageAccessor ImageAccessor::GetRegion(unsigned int x, | |
| 243 unsigned int y, | |
| 244 unsigned int width, | |
| 245 unsigned int height) const | |
| 246 { | |
| 247 if (x + width > width_ || | |
| 248 y + height > height_) | |
| 249 { | |
| 250 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 251 } | |
| 252 | |
| 253 ImageAccessor result; | |
| 254 | |
| 255 if (width == 0 || | |
| 256 height == 0) | |
| 257 { | |
| 258 result.AssignWritable(format_, 0, 0, 0, NULL); | |
| 259 } | |
| 260 else | |
| 261 { | |
| 262 uint8_t* p = (buffer_ + | |
| 263 y * pitch_ + | |
| 264 x * GetBytesPerPixel()); | |
| 265 | |
| 266 if (readOnly_) | |
| 267 { | |
| 268 result.AssignReadOnly(format_, width, height, pitch_, p); | |
| 269 } | |
| 270 else | |
| 271 { | |
| 272 result.AssignWritable(format_, width, height, pitch_, p); | |
| 273 } | |
| 274 } | |
| 275 | |
| 276 return result; | |
| 277 } | |
| 278 | |
| 279 | |
| 280 void ImageAccessor::SetFormat(PixelFormat format) | |
| 281 { | |
| 282 if (readOnly_) | |
| 283 { | |
| 284 #if ORTHANC_ENABLE_LOGGING == 1 | |
| 285 LOG(ERROR) << "Trying to modify the format of a read-only image"; | |
| 286 #endif | |
| 287 throw OrthancException(ErrorCode_ReadOnly); | |
| 288 } | |
| 289 | |
| 290 if (::Orthanc::GetBytesPerPixel(format) != ::Orthanc::GetBytesPerPixel(format_)) | |
| 291 { | |
| 292 throw OrthancException(ErrorCode_IncompatibleImageFormat); | |
| 293 } | |
| 294 | |
| 295 format_ = format; | |
| 296 } | |
| 297 } |