Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/ImageBuffer.cpp @ 5095:b52fe770aec0
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| author | Alain Mazy <am@osimis.io> |
|---|---|
| date | Wed, 12 Oct 2022 09:22:08 +0200 |
| parents | 43e613a7756b |
| children | 0ea402b4d901 |
| 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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 801 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
| 801 | 12 * |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 * Lesser General Public License for more details. |
| 801 | 17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 801 | 21 **/ |
| 22 | |
| 23 | |
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24 #include "../PrecompiledHeaders.h" |
| 801 | 25 #include "ImageBuffer.h" |
| 26 | |
| 863 | 27 #include "../OrthancException.h" |
| 28 | |
| 4304 | 29 #include <boost/lexical_cast.hpp> |
| 860 | 30 #include <stdio.h> |
| 863 | 31 #include <stdlib.h> |
| 860 | 32 |
| 801 | 33 namespace Orthanc |
| 34 { | |
| 35 void ImageBuffer::Allocate() | |
| 36 { | |
| 37 if (changed_) | |
| 38 { | |
| 863 | 39 Deallocate(); |
| 40 | |
| 844 | 41 /* |
| 42 if (forceMinimalPitch_) | |
| 43 { | |
| 44 TODO: Align pitch and memory buffer to optimal size for SIMD. | |
| 45 } | |
| 46 */ | |
| 47 | |
| 801 | 48 pitch_ = GetBytesPerPixel() * width_; |
| 863 | 49 size_t size = pitch_ * height_; |
| 801 | 50 |
| 863 | 51 if (size == 0) |
| 801 | 52 { |
| 863 | 53 buffer_ = NULL; |
| 801 | 54 } |
| 55 else | |
| 56 { | |
| 863 | 57 buffer_ = malloc(size); |
| 58 if (buffer_ == NULL) | |
| 59 { | |
| 3348 | 60 throw OrthancException(ErrorCode_NotEnoughMemory, |
| 61 "Failed to allocate an image buffer of size " + boost::lexical_cast<std::string>(width_) + "x" + boost::lexical_cast<std::string>(height_)); | |
| 863 | 62 } |
| 801 | 63 } |
| 64 | |
| 65 changed_ = false; | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 | |
| 863 | 70 void ImageBuffer::Deallocate() |
| 71 { | |
| 72 if (buffer_ != NULL) | |
| 73 { | |
| 74 free(buffer_); | |
| 75 buffer_ = NULL; | |
| 76 changed_ = true; | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 | |
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81 ImageBuffer::ImageBuffer(PixelFormat format, |
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82 unsigned int width, |
| 2107 | 83 unsigned int height, |
| 84 bool forceMinimalPitch) : | |
| 85 forceMinimalPitch_(forceMinimalPitch) | |
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86 { |
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87 Initialize(); |
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88 SetWidth(width); |
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89 SetHeight(height); |
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90 SetFormat(format); |
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91 } |
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92 |
| 4300 | 93 ImageBuffer::ImageBuffer() |
| 94 { | |
| 95 Initialize(); | |
| 96 } | |
| 97 | |
| 98 ImageBuffer::~ImageBuffer() | |
| 99 { | |
| 100 Deallocate(); | |
| 101 } | |
| 102 | |
| 103 PixelFormat ImageBuffer::GetFormat() const | |
| 104 { | |
| 105 return format_; | |
| 106 } | |
| 107 | |
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108 |
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109 void ImageBuffer::Initialize() |
| 801 | 110 { |
| 111 changed_ = false; | |
| 844 | 112 forceMinimalPitch_ = true; |
| 801 | 113 format_ = PixelFormat_Grayscale8; |
| 114 width_ = 0; | |
| 115 height_ = 0; | |
| 116 pitch_ = 0; | |
| 117 buffer_ = NULL; | |
| 118 } | |
| 119 | |
| 120 | |
| 121 void ImageBuffer::SetFormat(PixelFormat format) | |
| 122 { | |
| 863 | 123 if (format != format_) |
| 124 { | |
| 125 changed_ = true; | |
| 126 format_ = format; | |
| 127 } | |
| 801 | 128 } |
| 129 | |
| 4300 | 130 unsigned int ImageBuffer::GetWidth() const |
| 131 { | |
| 132 return width_; | |
| 133 } | |
| 134 | |
| 801 | 135 |
| 136 void ImageBuffer::SetWidth(unsigned int width) | |
| 137 { | |
| 863 | 138 if (width != width_) |
| 139 { | |
| 140 changed_ = true; | |
| 141 width_ = width; | |
| 142 } | |
| 801 | 143 } |
| 144 | |
| 4300 | 145 unsigned int ImageBuffer::GetHeight() const |
| 146 { | |
| 147 return height_; | |
| 148 } | |
| 149 | |
| 801 | 150 |
| 151 void ImageBuffer::SetHeight(unsigned int height) | |
| 152 { | |
| 863 | 153 if (height != height_) |
| 154 { | |
| 155 changed_ = true; | |
| 156 height_ = height; | |
| 157 } | |
| 801 | 158 } |
| 159 | |
| 4300 | 160 unsigned int ImageBuffer::GetBytesPerPixel() const |
| 161 { | |
| 162 return ::Orthanc::GetBytesPerPixel(format_); | |
| 163 } | |
| 164 | |
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165 |
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166 void ImageBuffer::GetReadOnlyAccessor(ImageAccessor& accessor) |
| 801 | 167 { |
| 168 Allocate(); | |
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169 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_); |
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170 } |
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171 |
| 801 | 172 |
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173 void ImageBuffer::GetWriteableAccessor(ImageAccessor& accessor) |
| 801 | 174 { |
| 175 Allocate(); | |
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176 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_); |
| 801 | 177 } |
| 844 | 178 |
| 4300 | 179 bool ImageBuffer::IsMinimalPitchForced() const |
| 180 { | |
| 181 return forceMinimalPitch_; | |
| 182 } | |
| 183 | |
| 844 | 184 |
| 863 | 185 void ImageBuffer::AcquireOwnership(ImageBuffer& other) |
| 186 { | |
| 187 // Remove the content of the current image | |
| 188 Deallocate(); | |
| 189 | |
| 190 // Force the allocation of the other image (if not already | |
| 191 // allocated) | |
| 192 other.Allocate(); | |
| 193 | |
| 194 // Transfer the content of the other image | |
| 195 changed_ = false; | |
| 196 forceMinimalPitch_ = other.forceMinimalPitch_; | |
| 197 format_ = other.format_; | |
| 198 width_ = other.width_; | |
| 199 height_ = other.height_; | |
| 200 pitch_ = other.pitch_; | |
| 201 buffer_ = other.buffer_; | |
| 202 | |
| 203 // Force the reinitialization of the other image | |
| 204 other.Initialize(); | |
| 844 | 205 } |
| 801 | 206 } |