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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 "ImageBuffer.h"
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34
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35 namespace Orthanc
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36 {
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37 void ImageBuffer::Allocate()
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38 {
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39 if (changed_)
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40 {
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41 pitch_ = GetBytesPerPixel() * width_;
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42
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43 data_.resize(pitch_ * height_);
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44 if (data_.size() > 0)
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45 {
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46 buffer_ = &data_[0];
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47 }
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48 else
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49 {
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50 buffer_ = 0;
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51 }
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52
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53 changed_ = false;
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54 }
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55 }
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56
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57
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58 ImageBuffer::ImageBuffer() : changed_(false)
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59 {
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60 changed_ = false;
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61 format_ = PixelFormat_Grayscale8;
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62 width_ = 0;
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63 height_ = 0;
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64 pitch_ = 0;
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65 buffer_ = NULL;
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66 }
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67
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68
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69 void ImageBuffer::SetFormat(PixelFormat format)
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70 {
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71 changed_ = true;
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72 format_ = format;
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73 }
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74
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75
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76 void ImageBuffer::SetWidth(unsigned int width)
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77 {
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78 changed_ = true;
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79 width_ = width;
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80 }
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81
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82
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83 void ImageBuffer::SetHeight(unsigned int height)
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84 {
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85 changed_ = true;
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86 height_ = height;
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87 }
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88
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89
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90 ImageAccessor ImageBuffer::GetAccessor()
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91 {
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92 Allocate();
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93
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94 ImageAccessor accessor;
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95 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_);
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96 return accessor;
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97 }
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98
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99
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100 ImageAccessor ImageBuffer::GetConstAccessor()
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101 {
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102 Allocate();
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103
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104 ImageAccessor accessor;
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105 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_);
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106 return accessor;
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107 }
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108 }
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