Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 333:db391f32b91c OrthancWSI-2.1
OrthancWSI-2.1
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 18 Oct 2024 15:39:50 +0200 |
| parents | 8ad12abde290 |
| children |
| rev | line source |
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| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 0 | 8 * |
| 9 * This program is free software: you can redistribute it and/or | |
| 10 * modify it under the terms of the GNU Affero General Public License | |
| 11 * as published by the Free Software Foundation, either version 3 of | |
| 12 * the License, or (at your option) any later version. | |
| 13 * | |
| 14 * This program is distributed in the hope that it will be useful, but | |
| 15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 * Affero General Public License for more details. | |
| 18 * | |
| 19 * You should have received a copy of the GNU Affero General Public License | |
| 20 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 21 **/ | |
| 22 | |
| 23 | |
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24 #include "../PrecompiledHeadersWSI.h" |
| 0 | 25 #include "DecodedTiledPyramid.h" |
| 26 | |
| 27 #include "../ImageToolbox.h" | |
| 28 | |
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29 #include <Compatibility.h> // For std::unique_ptr |
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30 |
| 0 | 31 #include <memory> |
| 32 #include <cassert> | |
| 33 | |
| 34 namespace OrthancWSI | |
| 35 { | |
| 36 DecodedTiledPyramid::DecodedTiledPyramid() | |
| 37 { | |
| 38 SetBackgroundColor(255, 255, 255); | |
| 39 } | |
| 40 | |
| 41 | |
| 42 void DecodedTiledPyramid::SetBackgroundColor(uint8_t red, | |
| 43 uint8_t green, | |
| 44 uint8_t blue) | |
| 45 { | |
| 46 backgroundColor_[0] = red; | |
| 47 backgroundColor_[1] = green; | |
| 48 backgroundColor_[2] = blue; | |
| 49 } | |
| 50 | |
| 51 | |
| 52 void DecodedTiledPyramid::GetBackgroundColor(uint8_t& red, | |
| 53 uint8_t& green, | |
| 54 uint8_t& blue) const | |
| 55 { | |
| 56 red = backgroundColor_[0]; | |
| 57 green = backgroundColor_[1]; | |
| 58 blue = backgroundColor_[2]; | |
| 59 } | |
| 60 | |
| 61 | |
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62 Orthanc::ImageAccessor* DecodedTiledPyramid::DecodeTile(bool& isEmpty, |
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63 unsigned int level, |
| 0 | 64 unsigned int tileX, |
| 65 unsigned int tileY) | |
| 66 { | |
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67 unsigned int x = tileX * GetTileWidth(level); |
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68 unsigned int y = tileY * GetTileHeight(level); |
| 0 | 69 |
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70 std::unique_ptr<Orthanc::ImageAccessor> tile |
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71 (ImageToolbox::Allocate(GetPixelFormat(), GetTileWidth(level), GetTileHeight(level))); |
| 0 | 72 |
| 73 if (x >= GetLevelWidth(level) || | |
| 74 y >= GetLevelHeight(level)) // (*) | |
| 75 { | |
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76 isEmpty = true; |
| 0 | 77 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); |
| 78 return tile.release(); | |
| 79 } | |
| 80 | |
| 81 bool fit = true; | |
| 82 unsigned int regionWidth; | |
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83 if (x + GetTileWidth(level) <= GetLevelWidth(level)) |
| 0 | 84 { |
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85 regionWidth = GetTileWidth(level); |
| 0 | 86 } |
| 87 else | |
| 88 { | |
| 89 assert(GetLevelWidth(level) >= x); // This results from (*) | |
| 90 regionWidth = GetLevelWidth(level) - x; | |
| 91 fit = false; | |
| 92 } | |
| 93 | |
| 94 unsigned int regionHeight; | |
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95 if (y + GetTileHeight(level) <= GetLevelHeight(level)) |
| 0 | 96 { |
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97 regionHeight = GetTileHeight(level); |
| 0 | 98 } |
| 99 else | |
| 100 { | |
| 101 assert(GetLevelHeight(level) >= y); // This results from (*) | |
| 102 regionHeight = GetLevelHeight(level) - y; | |
| 103 fit = false; | |
| 104 } | |
| 105 | |
| 106 if (fit) | |
| 107 { | |
| 108 // The tile entirely lies inside the image | |
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109 ReadRegion(*tile, isEmpty, level, x, y); |
| 0 | 110 } |
| 111 else | |
| 112 { | |
| 113 // The tile exceeds the size of image, decode it to a temporary buffer | |
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114 std::unique_ptr<Orthanc::ImageAccessor> cropped |
| 0 | 115 (ImageToolbox::Allocate(GetPixelFormat(), regionWidth, regionHeight)); |
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116 ReadRegion(*cropped, isEmpty, level, x, y); |
| 0 | 117 |
| 118 // Create a white tile, and fill it with the cropped content | |
| 119 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
| 120 ImageToolbox::Embed(*tile, *cropped, 0, 0); | |
| 121 } | |
| 122 | |
| 123 return tile.release(); | |
| 124 } | |
| 125 } |