Mercurial > hg > orthanc-wsi
comparison Resources/Orthanc/Core/Images/ImageBuffer.cpp @ 59:7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 25 Nov 2016 16:34:34 +0100 |
parents | Framework/Orthanc/Core/Images/ImageBuffer.cpp@dc730d11b101 |
children | ff0ef01c332c |
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58:35468714a38e | 59:7a3853d51c45 |
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1 /** | |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, 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 "../PrecompiledHeaders.h" | |
34 #include "ImageBuffer.h" | |
35 | |
36 #include "../OrthancException.h" | |
37 | |
38 #include <stdio.h> | |
39 #include <stdlib.h> | |
40 | |
41 namespace Orthanc | |
42 { | |
43 void ImageBuffer::Allocate() | |
44 { | |
45 if (changed_) | |
46 { | |
47 Deallocate(); | |
48 | |
49 /* | |
50 if (forceMinimalPitch_) | |
51 { | |
52 TODO: Align pitch and memory buffer to optimal size for SIMD. | |
53 } | |
54 */ | |
55 | |
56 pitch_ = GetBytesPerPixel() * width_; | |
57 size_t size = pitch_ * height_; | |
58 | |
59 if (size == 0) | |
60 { | |
61 buffer_ = NULL; | |
62 } | |
63 else | |
64 { | |
65 buffer_ = malloc(size); | |
66 if (buffer_ == NULL) | |
67 { | |
68 throw OrthancException(ErrorCode_NotEnoughMemory); | |
69 } | |
70 } | |
71 | |
72 changed_ = false; | |
73 } | |
74 } | |
75 | |
76 | |
77 void ImageBuffer::Deallocate() | |
78 { | |
79 if (buffer_ != NULL) | |
80 { | |
81 free(buffer_); | |
82 buffer_ = NULL; | |
83 changed_ = true; | |
84 } | |
85 } | |
86 | |
87 | |
88 ImageBuffer::ImageBuffer(PixelFormat format, | |
89 unsigned int width, | |
90 unsigned int height, | |
91 bool forceMinimalPitch) : | |
92 forceMinimalPitch_(forceMinimalPitch) | |
93 { | |
94 Initialize(); | |
95 SetWidth(width); | |
96 SetHeight(height); | |
97 SetFormat(format); | |
98 } | |
99 | |
100 | |
101 void ImageBuffer::Initialize() | |
102 { | |
103 changed_ = false; | |
104 forceMinimalPitch_ = true; | |
105 format_ = PixelFormat_Grayscale8; | |
106 width_ = 0; | |
107 height_ = 0; | |
108 pitch_ = 0; | |
109 buffer_ = NULL; | |
110 } | |
111 | |
112 | |
113 void ImageBuffer::SetFormat(PixelFormat format) | |
114 { | |
115 if (format != format_) | |
116 { | |
117 changed_ = true; | |
118 format_ = format; | |
119 } | |
120 } | |
121 | |
122 | |
123 void ImageBuffer::SetWidth(unsigned int width) | |
124 { | |
125 if (width != width_) | |
126 { | |
127 changed_ = true; | |
128 width_ = width; | |
129 } | |
130 } | |
131 | |
132 | |
133 void ImageBuffer::SetHeight(unsigned int height) | |
134 { | |
135 if (height != height_) | |
136 { | |
137 changed_ = true; | |
138 height_ = height; | |
139 } | |
140 } | |
141 | |
142 | |
143 ImageAccessor ImageBuffer::GetAccessor() | |
144 { | |
145 Allocate(); | |
146 | |
147 ImageAccessor accessor; | |
148 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_); | |
149 return accessor; | |
150 } | |
151 | |
152 | |
153 ImageAccessor ImageBuffer::GetConstAccessor() | |
154 { | |
155 Allocate(); | |
156 | |
157 ImageAccessor accessor; | |
158 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_); | |
159 return accessor; | |
160 } | |
161 | |
162 | |
163 void ImageBuffer::AcquireOwnership(ImageBuffer& other) | |
164 { | |
165 // Remove the content of the current image | |
166 Deallocate(); | |
167 | |
168 // Force the allocation of the other image (if not already | |
169 // allocated) | |
170 other.Allocate(); | |
171 | |
172 // Transfer the content of the other image | |
173 changed_ = false; | |
174 forceMinimalPitch_ = other.forceMinimalPitch_; | |
175 format_ = other.format_; | |
176 width_ = other.width_; | |
177 height_ = other.height_; | |
178 pitch_ = other.pitch_; | |
179 buffer_ = other.buffer_; | |
180 | |
181 // Force the reinitialization of the other image | |
182 other.Initialize(); | |
183 } | |
184 } |