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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include "../Enumerations.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 <boost/shared_ptr.hpp>
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40
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41 namespace Orthanc
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42 {
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43 class PngReader
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44 {
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45 private:
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46 struct PngRabi;
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47
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48 PixelFormat format_;
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49 unsigned int width_;
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50 unsigned int height_;
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51 unsigned int pitch_;
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52 std::vector<uint8_t> buffer_;
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53
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54 void CheckHeader(const void* header);
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55
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56 void Read(PngRabi& rabi);
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57
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58 public:
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59 PngReader();
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60
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61 PixelFormat GetFormat() const
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62 {
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63 return format_;
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64 }
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65
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66 unsigned int GetWidth() const
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67 {
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68 return width_;
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69 }
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70
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71 unsigned int GetHeight() const
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72 {
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73 return height_;
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74 }
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75
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76 unsigned int GetPitch() const
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77 {
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78 return pitch_;
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79 }
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80
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81 const void* GetBuffer() const
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82 {
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83 if (buffer_.size() > 0)
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84 return &buffer_[0];
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85 else
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86 return NULL;
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87 }
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88
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470
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89 const void* GetBuffer(unsigned int y) const
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90 {
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91 if (buffer_.size() > 0)
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92 return &buffer_[y * pitch_];
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93 else
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94 return NULL;
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95 }
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96
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455
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97 void ReadFromFile(const char* filename);
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98
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99 void ReadFromMemory(const void* buffer,
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100 size_t size);
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101
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102 void ReadFromMemory(const std::string& buffer);
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103 };
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104 }
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