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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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116
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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1
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../PrecompiledHeaders.h"
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35 #include "ImageAccessor.h"
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36
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37 #include "../Logging.h"
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38 #include "../OrthancException.h"
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39 #include "../ChunkedBuffer.h"
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40
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41 #include <stdint.h>
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42 #include <cassert>
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43 #include <boost/lexical_cast.hpp>
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44
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45
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46
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47 namespace Orthanc
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48 {
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49 template <typename PixelType>
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50 static void ToMatlabStringInternal(ChunkedBuffer& target,
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51 const ImageAccessor& source)
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52 {
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53 target.AddChunk("double([ ");
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54
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55 for (unsigned int y = 0; y < source.GetHeight(); y++)
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56 {
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57 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y));
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58
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59 std::string s;
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60 if (y > 0)
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61 {
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62 s = "; ";
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63 }
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64
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65 s.reserve(source.GetWidth() * 8);
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66
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67 for (unsigned int x = 0; x < source.GetWidth(); x++, p++)
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68 {
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69 s += boost::lexical_cast<std::string>(static_cast<double>(*p)) + " ";
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70 }
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71
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72 target.AddChunk(s);
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73 }
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74
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75 target.AddChunk("])");
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76 }
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77
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78
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79 static void RGB24ToMatlabString(ChunkedBuffer& target,
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80 const ImageAccessor& source)
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81 {
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82 assert(source.GetFormat() == PixelFormat_RGB24);
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83
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84 target.AddChunk("double(permute(reshape([ ");
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85
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86 for (unsigned int y = 0; y < source.GetHeight(); y++)
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87 {
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88 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y));
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89
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90 std::string s;
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91 s.reserve(source.GetWidth() * 3 * 8);
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92
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93 for (unsigned int x = 0; x < 3 * source.GetWidth(); x++, p++)
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94 {
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95 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " ";
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96 }
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97
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98 target.AddChunk(s);
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99 }
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100
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101 target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(source.GetHeight()) +
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102 " " + boost::lexical_cast<std::string>(source.GetWidth()) + " ]), [ 3 2 1 ]))");
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103 }
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104
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105
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106 void* ImageAccessor::GetBuffer() const
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107 {
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108 if (readOnly_)
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109 {
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110 #if ORTHANC_ENABLE_LOGGING == 1
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111 LOG(ERROR) << "Trying to write on a read-only image";
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112 #endif
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113
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114 throw OrthancException(ErrorCode_ReadOnly);
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115 }
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116
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117 return buffer_;
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118 }
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119
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120
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121 const void* ImageAccessor::GetConstRow(unsigned int y) const
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122 {
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123 if (buffer_ != NULL)
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124 {
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125 return buffer_ + y * pitch_;
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126 }
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127 else
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128 {
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129 return NULL;
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130 }
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131 }
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132
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133
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134 void* ImageAccessor::GetRow(unsigned int y) const
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135 {
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136 if (readOnly_)
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137 {
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138 #if ORTHANC_ENABLE_LOGGING == 1
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139 LOG(ERROR) << "Trying to write on a read-only image";
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140 #endif
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141
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142 throw OrthancException(ErrorCode_ReadOnly);
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143 }
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144
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145 if (buffer_ != NULL)
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146 {
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147 return buffer_ + y * pitch_;
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148 }
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149 else
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150 {
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151 return NULL;
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152 }
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153 }
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154
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155
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156 void ImageAccessor::AssignEmpty(PixelFormat format)
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157 {
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158 readOnly_ = false;
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159 format_ = format;
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160 width_ = 0;
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161 height_ = 0;
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162 pitch_ = 0;
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163 buffer_ = NULL;
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164 }
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165
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166
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167 void ImageAccessor::AssignReadOnly(PixelFormat format,
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168 unsigned int width,
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169 unsigned int height,
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170 unsigned int pitch,
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171 const void *buffer)
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172 {
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173 readOnly_ = true;
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174 format_ = format;
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175 width_ = width;
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176 height_ = height;
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177 pitch_ = pitch;
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178 buffer_ = reinterpret_cast<uint8_t*>(const_cast<void*>(buffer));
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179
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180 if (GetBytesPerPixel() * width_ > pitch_)
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181 {
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182 throw OrthancException(ErrorCode_ParameterOutOfRange);
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183 }
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184 }
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185
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186
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187 void ImageAccessor::AssignWritable(PixelFormat format,
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188 unsigned int width,
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189 unsigned int height,
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190 unsigned int pitch,
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191 void *buffer)
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192 {
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193 readOnly_ = false;
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194 format_ = format;
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195 width_ = width;
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196 height_ = height;
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197 pitch_ = pitch;
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198 buffer_ = reinterpret_cast<uint8_t*>(buffer);
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199
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200 if (GetBytesPerPixel() * width_ > pitch_)
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201 {
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202 throw OrthancException(ErrorCode_ParameterOutOfRange);
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203 }
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204 }
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205
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206
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207 void ImageAccessor::ToMatlabString(std::string& target) const
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208 {
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209 ChunkedBuffer buffer;
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210
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211 switch (GetFormat())
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212 {
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213 case PixelFormat_Grayscale8:
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214 ToMatlabStringInternal<uint8_t>(buffer, *this);
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215 break;
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216
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217 case PixelFormat_Grayscale16:
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218 ToMatlabStringInternal<uint16_t>(buffer, *this);
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219 break;
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220
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221 case PixelFormat_Grayscale32:
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222 ToMatlabStringInternal<uint32_t>(buffer, *this);
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223 break;
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224
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225 case PixelFormat_SignedGrayscale16:
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226 ToMatlabStringInternal<int16_t>(buffer, *this);
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227 break;
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228
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229 case PixelFormat_Float32:
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230 ToMatlabStringInternal<float>(buffer, *this);
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231 break;
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232
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233 case PixelFormat_RGB24:
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234 RGB24ToMatlabString(buffer, *this);
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235 break;
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236
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237 default:
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238 throw OrthancException(ErrorCode_NotImplemented);
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239 }
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240
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241 buffer.Flatten(target);
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242 }
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243
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244
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245
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246 ImageAccessor ImageAccessor::GetRegion(unsigned int x,
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247 unsigned int y,
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248 unsigned int width,
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249 unsigned int height) const
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250 {
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251 if (x + width > width_ ||
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252 y + height > height_)
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253 {
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254 throw OrthancException(ErrorCode_ParameterOutOfRange);
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255 }
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256
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257 ImageAccessor result;
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258
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259 if (width == 0 ||
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260 height == 0)
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261 {
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262 result.AssignWritable(format_, 0, 0, 0, NULL);
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263 }
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264 else
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265 {
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266 uint8_t* p = (buffer_ +
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267 y * pitch_ +
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268 x * GetBytesPerPixel());
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269
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270 if (readOnly_)
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271 {
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272 result.AssignReadOnly(format_, width, height, pitch_, p);
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273 }
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274 else
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275 {
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276 result.AssignWritable(format_, width, height, pitch_, p);
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277 }
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278 }
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279
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280 return result;
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281 }
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282
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283
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284 void ImageAccessor::SetFormat(PixelFormat format)
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285 {
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286 if (readOnly_)
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287 {
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288 #if ORTHANC_ENABLE_LOGGING == 1
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289 LOG(ERROR) << "Trying to modify the format of a read-only image";
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290 #endif
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291 throw OrthancException(ErrorCode_ReadOnly);
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292 }
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293
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294 if (::Orthanc::GetBytesPerPixel(format) != ::Orthanc::GetBytesPerPixel(format_))
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295 {
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296 throw OrthancException(ErrorCode_IncompatibleImageFormat);
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297 }
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298
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299 format_ = format;
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300 }
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301 }
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