Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Images/ImageBuffer.cpp @ 4706:dbee8bd8ee1f
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 22 Jun 2021 09:13:03 +0200 |
| parents | d9473bd5ed43 |
| children | 7053502fbf97 |
| 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) 2017-2021 Osimis S.A., Belgium |
| 801 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
| 801 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
| 801 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
| 801 | 20 **/ |
| 21 | |
| 22 | |
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23 #include "../PrecompiledHeaders.h" |
| 801 | 24 #include "ImageBuffer.h" |
| 25 | |
| 863 | 26 #include "../OrthancException.h" |
| 27 | |
| 4304 | 28 #include <boost/lexical_cast.hpp> |
| 860 | 29 #include <stdio.h> |
| 863 | 30 #include <stdlib.h> |
| 860 | 31 |
| 801 | 32 namespace Orthanc |
| 33 { | |
| 34 void ImageBuffer::Allocate() | |
| 35 { | |
| 36 if (changed_) | |
| 37 { | |
| 863 | 38 Deallocate(); |
| 39 | |
| 844 | 40 /* |
| 41 if (forceMinimalPitch_) | |
| 42 { | |
| 43 TODO: Align pitch and memory buffer to optimal size for SIMD. | |
| 44 } | |
| 45 */ | |
| 46 | |
| 801 | 47 pitch_ = GetBytesPerPixel() * width_; |
| 863 | 48 size_t size = pitch_ * height_; |
| 801 | 49 |
| 863 | 50 if (size == 0) |
| 801 | 51 { |
| 863 | 52 buffer_ = NULL; |
| 801 | 53 } |
| 54 else | |
| 55 { | |
| 863 | 56 buffer_ = malloc(size); |
| 57 if (buffer_ == NULL) | |
| 58 { | |
| 3348 | 59 throw OrthancException(ErrorCode_NotEnoughMemory, |
| 60 "Failed to allocate an image buffer of size " + boost::lexical_cast<std::string>(width_) + "x" + boost::lexical_cast<std::string>(height_)); | |
| 863 | 61 } |
| 801 | 62 } |
| 63 | |
| 64 changed_ = false; | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 | |
| 863 | 69 void ImageBuffer::Deallocate() |
| 70 { | |
| 71 if (buffer_ != NULL) | |
| 72 { | |
| 73 free(buffer_); | |
| 74 buffer_ = NULL; | |
| 75 changed_ = true; | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 | |
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80 ImageBuffer::ImageBuffer(PixelFormat format, |
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81 unsigned int width, |
| 2107 | 82 unsigned int height, |
| 83 bool forceMinimalPitch) : | |
| 84 forceMinimalPitch_(forceMinimalPitch) | |
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85 { |
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86 Initialize(); |
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87 SetWidth(width); |
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88 SetHeight(height); |
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89 SetFormat(format); |
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90 } |
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91 |
| 4300 | 92 ImageBuffer::ImageBuffer() |
| 93 { | |
| 94 Initialize(); | |
| 95 } | |
| 96 | |
| 97 ImageBuffer::~ImageBuffer() | |
| 98 { | |
| 99 Deallocate(); | |
| 100 } | |
| 101 | |
| 102 PixelFormat ImageBuffer::GetFormat() const | |
| 103 { | |
| 104 return format_; | |
| 105 } | |
| 106 | |
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107 |
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108 void ImageBuffer::Initialize() |
| 801 | 109 { |
| 110 changed_ = false; | |
| 844 | 111 forceMinimalPitch_ = true; |
| 801 | 112 format_ = PixelFormat_Grayscale8; |
| 113 width_ = 0; | |
| 114 height_ = 0; | |
| 115 pitch_ = 0; | |
| 116 buffer_ = NULL; | |
| 117 } | |
| 118 | |
| 119 | |
| 120 void ImageBuffer::SetFormat(PixelFormat format) | |
| 121 { | |
| 863 | 122 if (format != format_) |
| 123 { | |
| 124 changed_ = true; | |
| 125 format_ = format; | |
| 126 } | |
| 801 | 127 } |
| 128 | |
| 4300 | 129 unsigned int ImageBuffer::GetWidth() const |
| 130 { | |
| 131 return width_; | |
| 132 } | |
| 133 | |
| 801 | 134 |
| 135 void ImageBuffer::SetWidth(unsigned int width) | |
| 136 { | |
| 863 | 137 if (width != width_) |
| 138 { | |
| 139 changed_ = true; | |
| 140 width_ = width; | |
| 141 } | |
| 801 | 142 } |
| 143 | |
| 4300 | 144 unsigned int ImageBuffer::GetHeight() const |
| 145 { | |
| 146 return height_; | |
| 147 } | |
| 148 | |
| 801 | 149 |
| 150 void ImageBuffer::SetHeight(unsigned int height) | |
| 151 { | |
| 863 | 152 if (height != height_) |
| 153 { | |
| 154 changed_ = true; | |
| 155 height_ = height; | |
| 156 } | |
| 801 | 157 } |
| 158 | |
| 4300 | 159 unsigned int ImageBuffer::GetBytesPerPixel() const |
| 160 { | |
| 161 return ::Orthanc::GetBytesPerPixel(format_); | |
| 162 } | |
| 163 | |
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164 |
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165 void ImageBuffer::GetReadOnlyAccessor(ImageAccessor& accessor) |
| 801 | 166 { |
| 167 Allocate(); | |
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168 accessor.AssignReadOnly(format_, width_, height_, pitch_, buffer_); |
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169 } |
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170 |
| 801 | 171 |
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172 void ImageBuffer::GetWriteableAccessor(ImageAccessor& accessor) |
| 801 | 173 { |
| 174 Allocate(); | |
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175 accessor.AssignWritable(format_, width_, height_, pitch_, buffer_); |
| 801 | 176 } |
| 844 | 177 |
| 4300 | 178 bool ImageBuffer::IsMinimalPitchForced() const |
| 179 { | |
| 180 return forceMinimalPitch_; | |
| 181 } | |
| 182 | |
| 844 | 183 |
| 863 | 184 void ImageBuffer::AcquireOwnership(ImageBuffer& other) |
| 185 { | |
| 186 // Remove the content of the current image | |
| 187 Deallocate(); | |
| 188 | |
| 189 // Force the allocation of the other image (if not already | |
| 190 // allocated) | |
| 191 other.Allocate(); | |
| 192 | |
| 193 // Transfer the content of the other image | |
| 194 changed_ = false; | |
| 195 forceMinimalPitch_ = other.forceMinimalPitch_; | |
| 196 format_ = other.format_; | |
| 197 width_ = other.width_; | |
| 198 height_ = other.height_; | |
| 199 pitch_ = other.pitch_; | |
| 200 buffer_ = other.buffer_; | |
| 201 | |
| 202 // Force the reinitialization of the other image | |
| 203 other.Initialize(); | |
| 844 | 204 } |
| 801 | 205 } |