Mercurial > hg > orthanc
annotate Core/Images/ImageBuffer.cpp @ 2964:6896a7c1cbe2
log
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 05 Dec 2018 12:58:56 +0100 |
| parents | 9b4251721f22 |
| children | 4e43e67f8ecf |
| rev | line source |
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| 801 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
| 801 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
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34 #include "../PrecompiledHeaders.h" |
| 801 | 35 #include "ImageBuffer.h" |
| 36 | |
| 863 | 37 #include "../OrthancException.h" |
| 38 | |
| 860 | 39 #include <stdio.h> |
| 863 | 40 #include <stdlib.h> |
| 860 | 41 |
| 801 | 42 namespace Orthanc |
| 43 { | |
| 44 void ImageBuffer::Allocate() | |
| 45 { | |
| 46 if (changed_) | |
| 47 { | |
| 863 | 48 Deallocate(); |
| 49 | |
| 844 | 50 /* |
| 51 if (forceMinimalPitch_) | |
| 52 { | |
| 53 TODO: Align pitch and memory buffer to optimal size for SIMD. | |
| 54 } | |
| 55 */ | |
| 56 | |
| 801 | 57 pitch_ = GetBytesPerPixel() * width_; |
| 863 | 58 size_t size = pitch_ * height_; |
| 801 | 59 |
| 863 | 60 if (size == 0) |
| 801 | 61 { |
| 863 | 62 buffer_ = NULL; |
| 801 | 63 } |
| 64 else | |
| 65 { | |
| 863 | 66 buffer_ = malloc(size); |
| 67 if (buffer_ == NULL) | |
| 68 { | |
| 69 throw OrthancException(ErrorCode_NotEnoughMemory); | |
| 70 } | |
| 801 | 71 } |
| 72 | |
| 73 changed_ = false; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 | |
| 863 | 78 void ImageBuffer::Deallocate() |
| 79 { | |
| 80 if (buffer_ != NULL) | |
| 81 { | |
| 82 free(buffer_); | |
| 83 buffer_ = NULL; | |
| 84 changed_ = true; | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 | |
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89 ImageBuffer::ImageBuffer(PixelFormat format, |
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90 unsigned int width, |
| 2107 | 91 unsigned int height, |
| 92 bool forceMinimalPitch) : | |
| 93 forceMinimalPitch_(forceMinimalPitch) | |
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94 { |
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95 Initialize(); |
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96 SetWidth(width); |
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97 SetHeight(height); |
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98 SetFormat(format); |
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99 } |
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100 |
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101 |
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102 void ImageBuffer::Initialize() |
| 801 | 103 { |
| 104 changed_ = false; | |
| 844 | 105 forceMinimalPitch_ = true; |
| 801 | 106 format_ = PixelFormat_Grayscale8; |
| 107 width_ = 0; | |
| 108 height_ = 0; | |
| 109 pitch_ = 0; | |
| 110 buffer_ = NULL; | |
| 111 } | |
| 112 | |
| 113 | |
| 114 void ImageBuffer::SetFormat(PixelFormat format) | |
| 115 { | |
| 863 | 116 if (format != format_) |
| 117 { | |
| 118 changed_ = true; | |
| 119 format_ = format; | |
| 120 } | |
| 801 | 121 } |
| 122 | |
| 123 | |
| 124 void ImageBuffer::SetWidth(unsigned int width) | |
| 125 { | |
| 863 | 126 if (width != width_) |
| 127 { | |
| 128 changed_ = true; | |
| 129 width_ = width; | |
| 130 } | |
| 801 | 131 } |
| 132 | |
| 133 | |
| 134 void ImageBuffer::SetHeight(unsigned int height) | |
| 135 { | |
| 863 | 136 if (height != height_) |
| 137 { | |
| 138 changed_ = true; | |
| 139 height_ = height; | |
| 140 } | |
| 801 | 141 } |
| 142 | |
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143 |
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144 void ImageBuffer::GetReadOnlyAccessor(ImageAccessor& accessor) |
| 801 | 145 { |
| 146 Allocate(); | |
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147 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_); |
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148 } |
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149 |
| 801 | 150 |
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151 void ImageBuffer::GetWriteableAccessor(ImageAccessor& accessor) |
| 801 | 152 { |
| 153 Allocate(); | |
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154 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_); |
| 801 | 155 } |
| 844 | 156 |
| 157 | |
| 863 | 158 void ImageBuffer::AcquireOwnership(ImageBuffer& other) |
| 159 { | |
| 160 // Remove the content of the current image | |
| 161 Deallocate(); | |
| 162 | |
| 163 // Force the allocation of the other image (if not already | |
| 164 // allocated) | |
| 165 other.Allocate(); | |
| 166 | |
| 167 // Transfer the content of the other image | |
| 168 changed_ = false; | |
| 169 forceMinimalPitch_ = other.forceMinimalPitch_; | |
| 170 format_ = other.format_; | |
| 171 width_ = other.width_; | |
| 172 height_ = other.height_; | |
| 173 pitch_ = other.pitch_; | |
| 174 buffer_ = other.buffer_; | |
| 175 | |
| 176 // Force the reinitialization of the other image | |
| 177 other.Initialize(); | |
| 844 | 178 } |
| 801 | 179 } |