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comparison Core/ImageFormats/ImageBuffer.cpp @ 801:262feb14f92f

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 06 May 2014 16:35:21 +0200
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children a811bdf8b8eb
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800:ecedd89055db 801:262feb14f92f
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
4 * Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #include "ImageBuffer.h"
34
35 namespace Orthanc
36 {
37 void ImageBuffer::Allocate()
38 {
39 if (changed_)
40 {
41 pitch_ = GetBytesPerPixel() * width_;
42
43 data_.resize(pitch_ * height_);
44 if (data_.size() > 0)
45 {
46 buffer_ = &data_[0];
47 }
48 else
49 {
50 buffer_ = 0;
51 }
52
53 changed_ = false;
54 }
55 }
56
57
58 ImageBuffer::ImageBuffer() : changed_(false)
59 {
60 changed_ = false;
61 format_ = PixelFormat_Grayscale8;
62 width_ = 0;
63 height_ = 0;
64 pitch_ = 0;
65 buffer_ = NULL;
66 }
67
68
69 void ImageBuffer::SetFormat(PixelFormat format)
70 {
71 changed_ = true;
72 format_ = format;
73 }
74
75
76 void ImageBuffer::SetWidth(unsigned int width)
77 {
78 changed_ = true;
79 width_ = width;
80 }
81
82
83 void ImageBuffer::SetHeight(unsigned int height)
84 {
85 changed_ = true;
86 height_ = height;
87 }
88
89
90 ImageAccessor ImageBuffer::GetAccessor()
91 {
92 Allocate();
93
94 ImageAccessor accessor;
95 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_);
96 return accessor;
97 }
98
99
100 ImageAccessor ImageBuffer::GetConstAccessor()
101 {
102 Allocate();
103
104 ImageAccessor accessor;
105 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_);
106 return accessor;
107 }
108 }