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annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 334:f011fc199b6a default tip
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 18 Oct 2024 15:44:18 +0200 |
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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 } |