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annotate Core/ImageFormats/ImageAccessor.cpp @ 799:777b6b694da6

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 06 May 2014 12:55:41 +0200
parents Core/FileFormats/ImageAccessor.cpp@e1d27ee2114a
children ecedd89055db
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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 "ImageAccessor.h"
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34
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35 #include "../OrthancException.h"
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36
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37 #include <stdint.h>
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38
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39 namespace Orthanc
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40 {
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41 void* ImageAccessor::GetBuffer()
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42 {
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43 if (readOnly_)
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44 {
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45 throw OrthancException(ErrorCode_ReadOnly);
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46 }
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47
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48 return buffer_;
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49 }
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50
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51
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52 const void* ImageAccessor::GetConstRow(unsigned int y) const
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53 {
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54 if (buffer_ != NULL)
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55 {
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56 return reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
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57 }
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58 else
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59 {
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60 return NULL;
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61 }
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62 }
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63
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64
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65 void* ImageAccessor::GetRow(unsigned int y)
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66 {
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67 if (readOnly_)
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68 {
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69 throw OrthancException(ErrorCode_ReadOnly);
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70 }
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71
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72 if (buffer_ != NULL)
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73 {
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74 return reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
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75 }
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76 else
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77 {
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78 return NULL;
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79 }
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80 }
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81
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82
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83 void ImageAccessor::AssignEmpty(PixelFormat format)
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84 {
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85 readOnly_ = false;
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86 format_ = format;
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87 width_ = 0;
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88 height_ = 0;
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89 pitch_ = 0;
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90 buffer_ = NULL;
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91 }
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92
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93
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94 void ImageAccessor::AssignReadOnly(PixelFormat format,
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95 unsigned int width,
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96 unsigned int height,
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97 unsigned int pitch,
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98 const void *buffer)
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99 {
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100 readOnly_ = true;
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101 format_ = format;
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102 width_ = width;
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103 height_ = height;
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104 pitch_ = pitch;
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105 buffer_ = const_cast<void*>(buffer);
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106 }
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107
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108
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109 void ImageAccessor::AssignWritable(PixelFormat format,
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110 unsigned int width,
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111 unsigned int height,
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112 unsigned int pitch,
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113 void *buffer)
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114 {
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115 readOnly_ = false;
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116 format_ = format;
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117 width_ = width;
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118 height_ = height;
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119 pitch_ = pitch;
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120 buffer_ = buffer;
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121 }
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122 }