Mercurial > hg > orthanc
annotate Core/Images/PamWriter.cpp @ 2699:52217dc47a4e
new image/pam MIME TYPE supported in /instances/../frames/../image-uint8... routes
author | am@osimis.io |
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date | Thu, 05 Jul 2018 12:25:00 +0200 |
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children | f77c7b48f798 |
rev | line source |
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2699
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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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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
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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 "PamWriter.h" |
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36 |
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37 #include <vector> |
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38 #include <stdint.h> |
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39 #include <iostream> |
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40 #include <sstream> |
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41 #include <fstream> |
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42 #include <endian.h> |
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43 #include "../OrthancException.h" |
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44 #include "../ChunkedBuffer.h" |
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45 #include "../Toolbox.h" |
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46 |
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47 #if ORTHANC_SANDBOXED == 0 |
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48 # include "../SystemToolbox.h" |
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49 #endif |
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50 |
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51 |
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52 namespace Orthanc |
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53 { |
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54 namespace |
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55 { |
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56 void GetPixelFormatInfo(const PixelFormat& format, unsigned int& maxValue, unsigned int& channelCount, unsigned int& bytesPerChannel, const char*& tupleType) { |
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57 maxValue = 255; |
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58 channelCount = 1; |
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59 bytesPerChannel = 1; |
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60 tupleType = NULL; |
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61 |
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62 switch (format) { |
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63 case PixelFormat_Grayscale8: |
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64 maxValue = 255; |
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65 channelCount = 1; |
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66 bytesPerChannel = 1; |
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67 tupleType = "GRAYSCALE"; |
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68 break; |
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69 case PixelFormat_Grayscale16: |
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70 maxValue = 65535; |
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71 channelCount = 1; |
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72 bytesPerChannel = 2; |
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73 tupleType = "GRAYSCALE"; |
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74 break; |
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75 case PixelFormat_RGB24: |
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76 maxValue = 255; |
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77 channelCount = 3; |
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78 bytesPerChannel = 1; |
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79 tupleType = "RGB"; |
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80 break; |
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81 case PixelFormat_RGB48: |
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82 maxValue = 255; |
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83 channelCount = 3; |
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84 bytesPerChannel = 2; |
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85 tupleType = "RGB"; |
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86 break; |
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87 default: |
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88 throw OrthancException(ErrorCode_NotImplemented); |
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89 } |
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90 |
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91 } |
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92 |
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93 void WriteToStream(std::ostream& output, |
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94 unsigned int width, |
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95 unsigned int height, |
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96 unsigned int pitch, |
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97 PixelFormat format, |
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98 const void* buffer) |
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99 { |
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100 unsigned int maxValue = 255; |
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101 unsigned int channelCount = 1; |
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102 unsigned int bytesPerChannel = 1; |
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103 const char* tupleType = "GRAYSCALE"; |
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104 GetPixelFormatInfo(format, maxValue, channelCount, bytesPerChannel, tupleType); |
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105 |
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106 output << "P7" << "\n"; |
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107 output << "WIDTH " << width << "\n"; |
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108 output << "HEIGHT " << height << "\n"; |
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109 output << "DEPTH " << channelCount << "\n"; |
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110 output << "MAXVAL " << maxValue << "\n"; |
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111 output << "TUPLTYPE " << tupleType << "\n"; |
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112 output << "ENDHDR" << "\n"; |
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113 |
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114 if (Toolbox::DetectEndianness() == Endianness_Little && bytesPerChannel == 2) |
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115 { |
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116 uint16_t tmp; |
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117 const uint16_t* pixel = NULL; |
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118 for (unsigned int h = 0; h < height; ++h) |
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119 { |
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120 pixel = reinterpret_cast<const uint16_t*> (reinterpret_cast<const uint8_t*>(buffer) + h * pitch); |
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121 for (unsigned int w = 0; w < (width * channelCount); ++w, ++pixel) |
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122 { |
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123 tmp = htobe16(*pixel); |
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124 output.write(reinterpret_cast<const char*>(&tmp), 2); |
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125 } |
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126 } |
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127 } |
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128 else |
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129 { |
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130 for (unsigned int h = 0; h < height; ++h) |
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131 { |
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132 output.write(reinterpret_cast<const char*>(reinterpret_cast<const uint8_t*>(buffer) + h * pitch), channelCount * bytesPerChannel * width); |
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133 } |
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134 } |
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135 |
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136 } |
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137 |
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138 } |
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139 |
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140 #if ORTHANC_SANDBOXED == 0 |
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141 void PamWriter::WriteToFileInternal(const std::string& filename, |
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142 unsigned int width, |
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143 unsigned int height, |
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144 unsigned int pitch, |
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145 PixelFormat format, |
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146 const void* buffer) |
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147 { |
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148 std::ofstream outfile (filename, std::ofstream::binary); |
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149 |
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150 WriteToStream(outfile, width, height, pitch, format, buffer); |
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151 outfile.close(); |
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152 } |
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153 #endif |
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154 |
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155 |
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156 void PamWriter::WriteToMemoryInternal(std::string& output, |
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157 unsigned int width, |
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158 unsigned int height, |
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159 unsigned int pitch, |
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160 PixelFormat format, |
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161 const void* buffer) |
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162 { |
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163 std::ostringstream outStream; // todo: try to write directly in output and avoid copy |
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164 |
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165 WriteToStream(outStream, width, height, pitch, format, buffer); |
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166 output = outStream.str(); |
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167 } |
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168 } |