Mercurial > hg > orthanc
annotate Core/ImageFormats/ImageAccessor.cpp @ 860:80c7e53a69b5 jpeg
bugfix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sat, 07 Jun 2014 10:32:15 +0200 |
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children | a546b05a43da |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2014 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 #include "../PrecompiledHeaders.h" |
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34 #include "ImageAccessor.h" |
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35 |
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36 #include "../OrthancException.h" |
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37 |
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38 #include <stdint.h> |
860 | 39 #include <cassert> |
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40 |
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41 namespace Orthanc |
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42 { |
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43 void* ImageAccessor::GetBuffer() const |
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44 { |
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45 if (readOnly_) |
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46 { |
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47 throw OrthancException(ErrorCode_ReadOnly); |
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48 } |
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49 |
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50 return buffer_; |
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51 } |
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52 |
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53 |
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54 const void* ImageAccessor::GetConstRow(unsigned int y) const |
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55 { |
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56 if (buffer_ != NULL) |
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57 { |
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58 return reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_; |
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59 } |
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60 else |
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61 { |
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62 return NULL; |
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63 } |
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64 } |
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65 |
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66 |
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67 void* ImageAccessor::GetRow(unsigned int y) const |
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68 { |
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69 if (readOnly_) |
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70 { |
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71 throw OrthancException(ErrorCode_ReadOnly); |
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72 } |
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73 |
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74 if (buffer_ != NULL) |
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75 { |
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76 return reinterpret_cast<uint8_t*>(buffer_) + y * pitch_; |
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77 } |
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78 else |
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79 { |
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80 return NULL; |
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81 } |
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82 } |
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83 |
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84 |
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85 void ImageAccessor::AssignEmpty(PixelFormat format) |
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86 { |
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87 readOnly_ = false; |
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88 format_ = format; |
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89 width_ = 0; |
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90 height_ = 0; |
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91 pitch_ = 0; |
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92 buffer_ = NULL; |
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93 } |
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94 |
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95 |
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96 void ImageAccessor::AssignReadOnly(PixelFormat format, |
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97 unsigned int width, |
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98 unsigned int height, |
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99 unsigned int pitch, |
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100 const void *buffer) |
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101 { |
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102 readOnly_ = true; |
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103 format_ = format; |
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104 width_ = width; |
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105 height_ = height; |
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106 pitch_ = pitch; |
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107 buffer_ = const_cast<void*>(buffer); |
860 | 108 |
109 assert(GetBytesPerPixel(format_) * width_ <= pitch_); | |
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110 } |
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111 |
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112 |
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113 void ImageAccessor::AssignWritable(PixelFormat format, |
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114 unsigned int width, |
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115 unsigned int height, |
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116 unsigned int pitch, |
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117 void *buffer) |
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118 { |
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119 readOnly_ = false; |
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120 format_ = format; |
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121 width_ = width; |
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122 height_ = height; |
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123 pitch_ = pitch; |
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124 buffer_ = buffer; |
860 | 125 |
126 assert(GetBytesPerPixel(format_) * width_ <= pitch_); | |
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127 } |
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128 } |