Mercurial > hg > orthanc
annotate Core/Images/ImageBuffer.cpp @ 3812:abd3a1d114c0 transcoding
transcoding to 1.2.840.10008.1.2.4.51
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
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| date | Tue, 07 Apr 2020 13:54:57 +0200 |
| parents | 94f4a18a79cc |
| children |
| 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) 2017-2020 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 { | |
| 3348 | 69 throw OrthancException(ErrorCode_NotEnoughMemory, |
| 70 "Failed to allocate an image buffer of size " + boost::lexical_cast<std::string>(width_) + "x" + boost::lexical_cast<std::string>(height_)); | |
| 863 | 71 } |
| 801 | 72 } |
| 73 | |
| 74 changed_ = false; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 | |
| 863 | 79 void ImageBuffer::Deallocate() |
| 80 { | |
| 81 if (buffer_ != NULL) | |
| 82 { | |
| 83 free(buffer_); | |
| 84 buffer_ = NULL; | |
| 85 changed_ = true; | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 | |
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90 ImageBuffer::ImageBuffer(PixelFormat format, |
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91 unsigned int width, |
| 2107 | 92 unsigned int height, |
| 93 bool forceMinimalPitch) : | |
| 94 forceMinimalPitch_(forceMinimalPitch) | |
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95 { |
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96 Initialize(); |
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97 SetWidth(width); |
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98 SetHeight(height); |
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99 SetFormat(format); |
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100 } |
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101 |
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102 |
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103 void ImageBuffer::Initialize() |
| 801 | 104 { |
| 105 changed_ = false; | |
| 844 | 106 forceMinimalPitch_ = true; |
| 801 | 107 format_ = PixelFormat_Grayscale8; |
| 108 width_ = 0; | |
| 109 height_ = 0; | |
| 110 pitch_ = 0; | |
| 111 buffer_ = NULL; | |
| 112 } | |
| 113 | |
| 114 | |
| 115 void ImageBuffer::SetFormat(PixelFormat format) | |
| 116 { | |
| 863 | 117 if (format != format_) |
| 118 { | |
| 119 changed_ = true; | |
| 120 format_ = format; | |
| 121 } | |
| 801 | 122 } |
| 123 | |
| 124 | |
| 125 void ImageBuffer::SetWidth(unsigned int width) | |
| 126 { | |
| 863 | 127 if (width != width_) |
| 128 { | |
| 129 changed_ = true; | |
| 130 width_ = width; | |
| 131 } | |
| 801 | 132 } |
| 133 | |
| 134 | |
| 135 void ImageBuffer::SetHeight(unsigned int height) | |
| 136 { | |
| 863 | 137 if (height != height_) |
| 138 { | |
| 139 changed_ = true; | |
| 140 height_ = height; | |
| 141 } | |
| 801 | 142 } |
| 143 | |
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144 |
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145 void ImageBuffer::GetReadOnlyAccessor(ImageAccessor& accessor) |
| 801 | 146 { |
| 147 Allocate(); | |
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148 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_); |
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149 } |
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150 |
| 801 | 151 |
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152 void ImageBuffer::GetWriteableAccessor(ImageAccessor& accessor) |
| 801 | 153 { |
| 154 Allocate(); | |
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155 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_); |
| 801 | 156 } |
| 844 | 157 |
| 158 | |
| 863 | 159 void ImageBuffer::AcquireOwnership(ImageBuffer& other) |
| 160 { | |
| 161 // Remove the content of the current image | |
| 162 Deallocate(); | |
| 163 | |
| 164 // Force the allocation of the other image (if not already | |
| 165 // allocated) | |
| 166 other.Allocate(); | |
| 167 | |
| 168 // Transfer the content of the other image | |
| 169 changed_ = false; | |
| 170 forceMinimalPitch_ = other.forceMinimalPitch_; | |
| 171 format_ = other.format_; | |
| 172 width_ = other.width_; | |
| 173 height_ = other.height_; | |
| 174 pitch_ = other.pitch_; | |
| 175 buffer_ = other.buffer_; | |
| 176 | |
| 177 // Force the reinitialization of the other image | |
| 178 other.Initialize(); | |
| 844 | 179 } |
| 801 | 180 } |