Mercurial > hg > orthanc
annotate Core/Images/ImageBuffer.cpp @ 2226:2bdc29af9589 Orthanc-1.2.0
set version
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 13 Dec 2016 16:28:07 +0100 |
| parents | 88831c3edd8f |
| children | a3a65de1840f |
| 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 |
| 801 | 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 | |
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33 #include "../PrecompiledHeaders.h" |
| 801 | 34 #include "ImageBuffer.h" |
| 35 | |
| 863 | 36 #include "../OrthancException.h" |
| 37 | |
| 860 | 38 #include <stdio.h> |
| 863 | 39 #include <stdlib.h> |
| 860 | 40 |
| 801 | 41 namespace Orthanc |
| 42 { | |
| 43 void ImageBuffer::Allocate() | |
| 44 { | |
| 45 if (changed_) | |
| 46 { | |
| 863 | 47 Deallocate(); |
| 48 | |
| 844 | 49 /* |
| 50 if (forceMinimalPitch_) | |
| 51 { | |
| 52 TODO: Align pitch and memory buffer to optimal size for SIMD. | |
| 53 } | |
| 54 */ | |
| 55 | |
| 801 | 56 pitch_ = GetBytesPerPixel() * width_; |
| 863 | 57 size_t size = pitch_ * height_; |
| 801 | 58 |
| 863 | 59 if (size == 0) |
| 801 | 60 { |
| 863 | 61 buffer_ = NULL; |
| 801 | 62 } |
| 63 else | |
| 64 { | |
| 863 | 65 buffer_ = malloc(size); |
| 66 if (buffer_ == NULL) | |
| 67 { | |
| 68 throw OrthancException(ErrorCode_NotEnoughMemory); | |
| 69 } | |
| 801 | 70 } |
| 71 | |
| 72 changed_ = false; | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 | |
| 863 | 77 void ImageBuffer::Deallocate() |
| 78 { | |
| 79 if (buffer_ != NULL) | |
| 80 { | |
| 81 free(buffer_); | |
| 82 buffer_ = NULL; | |
| 83 changed_ = true; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 | |
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88 ImageBuffer::ImageBuffer(PixelFormat format, |
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89 unsigned int width, |
| 2107 | 90 unsigned int height, |
| 91 bool forceMinimalPitch) : | |
| 92 forceMinimalPitch_(forceMinimalPitch) | |
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93 { |
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94 Initialize(); |
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95 SetWidth(width); |
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96 SetHeight(height); |
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97 SetFormat(format); |
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98 } |
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99 |
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100 |
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101 void ImageBuffer::Initialize() |
| 801 | 102 { |
| 103 changed_ = false; | |
| 844 | 104 forceMinimalPitch_ = true; |
| 801 | 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 { | |
| 863 | 115 if (format != format_) |
| 116 { | |
| 117 changed_ = true; | |
| 118 format_ = format; | |
| 119 } | |
| 801 | 120 } |
| 121 | |
| 122 | |
| 123 void ImageBuffer::SetWidth(unsigned int width) | |
| 124 { | |
| 863 | 125 if (width != width_) |
| 126 { | |
| 127 changed_ = true; | |
| 128 width_ = width; | |
| 129 } | |
| 801 | 130 } |
| 131 | |
| 132 | |
| 133 void ImageBuffer::SetHeight(unsigned int height) | |
| 134 { | |
| 863 | 135 if (height != height_) |
| 136 { | |
| 137 changed_ = true; | |
| 138 height_ = height; | |
| 139 } | |
| 801 | 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 } | |
| 844 | 161 |
| 162 | |
| 863 | 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(); | |
| 844 | 183 } |
| 801 | 184 } |